vim: src/move.c annotate

annotate src/move.c @ 32942:f2143ef2e979 v9.0.1766

patch 9.0.1766: Runtime: Missing QML support Problem: Runtime: Missing QML support Solution: Add QML support to Vim closes: #12810 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: ChaseKnowlden <haroldknowlden@gmail.com>

author	Christian Brabandt <cb@256bit.org>
date	Sun, 20 Aug 2023 21:59:22 +0200
parents	522f16e3e058
children	68a12270d21b

rev	line source
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1 /* vi:set ts=8 sts=4 sw=4 noet:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	4 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	7 * See README.txt for an overview of the Vim source code.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	8 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	9 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	10 * move.c: Functions for moving the cursor and scrolling text.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	11 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	12 * There are two ways to move the cursor:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	13 * 1. Move the cursor directly, the text is scrolled to keep the cursor in the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	14 * window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	15 * 2. Scroll the text, the cursor is moved into the text visible in the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	16 * window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	17 * The 'scrolloff' option makes this a bit complicated.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	18 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	19
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	20 #include "vim.h"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	21
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	22 static int scrolljump_value(void);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	23 static int check_top_offset(void);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	24 static void curs_rows(win_T *wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	25
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	26 typedef struct
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	27 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	28 linenr_T lnum; // line number
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	29 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	30 int fill; // filler lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	31 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	32 int height; // height of added line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	33 } lineoff_T;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	34
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	35 static void topline_back(lineoff_T *lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	36 static void botline_forw(lineoff_T *lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	37
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	38 /*
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	39 * Get the number of screen lines skipped with "wp->w_skipcol".
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	40 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	41 int
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	42 adjust_plines_for_skipcol(win_T *wp)
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	43 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	44 if (wp->w_skipcol == 0)
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	45 return 0;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	46
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	47 int width = wp->w_width - win_col_off(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	48 if (wp->w_skipcol >= width)
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	49 return (wp->w_skipcol - width) / (width + win_col_off2(wp)) + 1;
522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	50
522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	51 return 0;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	52 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	53
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	54 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	55 * Return how many lines "lnum" will take on the screen, taking into account
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	56 * whether it is the first line, whether w_skipcol is non-zero and limiting to
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	57 * the window height.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	58 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	59 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	60 plines_correct_topline(win_T *wp, linenr_T lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	61 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	62 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	63 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	64 if (lnum == wp->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	65 n = plines_win_nofill(wp, lnum, FALSE) + wp->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	66 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	67 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	68 n = plines_win(wp, lnum, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	69 if (lnum == wp->w_topline)
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	70 n -= adjust_plines_for_skipcol(wp);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	71 if (n > wp->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	72 n = wp->w_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	73 return n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	74 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	75
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	76 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	77 * Compute wp->w_botline for the current wp->w_topline. Can be called after
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	78 * wp->w_topline changed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	79 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	80 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	81 comp_botline(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	82 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	83 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	84 linenr_T lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	85 int done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	86 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	87 linenr_T last;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	88 int folded;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	89 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	90
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	91 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	92 * If w_cline_row is valid, start there.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	93 * Otherwise have to start at w_topline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	94 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	95 check_cursor_moved(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	96 if (wp->w_valid & VALID_CROW)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	97 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	98 lnum = wp->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	99 done = wp->w_cline_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	100 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	101 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	102 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	103 lnum = wp->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	104 done = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	105 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	106
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	107 for ( ; lnum <= wp->w_buffer->b_ml.ml_line_count; ++lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	108 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	109 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	110 last = lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	111 folded = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	112 if (hasFoldingWin(wp, lnum, NULL, &last, TRUE, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	113 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	114 n = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	115 folded = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	116 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	117 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	118 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	119 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	120 n = plines_correct_topline(wp, lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	121 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	122 if (
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	123 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	124 lnum <= wp->w_cursor.lnum && last >= wp->w_cursor.lnum
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	125 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	126 lnum == wp->w_cursor.lnum
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	127 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	128 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	129 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	130 wp->w_cline_row = done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	131 wp->w_cline_height = n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	132 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	133 wp->w_cline_folded = folded;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	134 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	135 redraw_for_cursorline(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	136 wp->w_valid \|= (VALID_CROW\|VALID_CHEIGHT);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	137 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	138 if (done + n > wp->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	139 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	140 done += n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	141 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	142 lnum = last;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	143 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	144 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	145
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	146 // wp->w_botline is the line that is just below the window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	147 wp->w_botline = lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	148 wp->w_valid \|= VALID_BOTLINE\|VALID_BOTLINE_AP;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	149
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	150 set_empty_rows(wp, done);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	151 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	152
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	153 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	154 * Redraw when w_cline_row changes and 'relativenumber' or 'cursorline' is
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	155 * set.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	156 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	157 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	158 redraw_for_cursorline(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	159 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	160 if ((wp->w_p_rnu
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	161 #ifdef FEAT_SYN_HL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	162 \|\| wp->w_p_cul
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	163 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	164 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	165 && (wp->w_valid & VALID_CROW) == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	166 && !pum_visible())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	167 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	168 // win_line() will redraw the number column and cursorline only.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	169 redraw_win_later(wp, UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	170 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	171 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	172
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	173 #ifdef FEAT_SYN_HL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	174 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	175 * Redraw when w_virtcol changes and 'cursorcolumn' is set or 'cursorlineopt'
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	176 * contains "screenline".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	177 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	178 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	179 redraw_for_cursorcolumn(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	180 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	181 if ((wp->w_valid & VALID_VIRTCOL) == 0 && !pum_visible())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	182 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	183 // When 'cursorcolumn' is set need to redraw with UPD_SOME_VALID.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	184 if (wp->w_p_cuc)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	185 redraw_win_later(wp, UPD_SOME_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	186 // When 'cursorlineopt' contains "screenline" need to redraw with
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	187 // UPD_VALID.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	188 else if (wp->w_p_cul && (wp->w_p_culopt_flags & CULOPT_SCRLINE))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	189 redraw_win_later(wp, UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	190 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	191 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	192 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	193
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	194 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	195 * Calculates how much the 'listchars' "precedes" or 'smoothscroll' "<<<"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	196 * marker overlaps with buffer text for window "wp".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	197 * Parameter "extra2" should be the padding on the 2nd line, not the first
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	198 * line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	199 * Returns the number of columns of overlap with buffer text, excluding the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	200 * extra padding on the ledge.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	201 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	202 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	203 sms_marker_overlap(win_T *wp, int extra2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	204 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	205 #if defined(FEAT_LINEBREAK)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	206 // There is no marker overlap when in showbreak mode, thus no need to
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	207 // account for it. See wlv_screen_line().
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	208 if (*get_showbreak_value(wp) != NUL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	209 return 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	210 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	211 // Overlap when 'list' and 'listchars' "precedes" are set is 1.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	212 if (wp->w_p_list && wp->w_lcs_chars.prec)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	213 return 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	214
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	215 return extra2 > 3 ? 0 : 3 - extra2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	216 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	217
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	218 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	219 * Calculates the skipcol offset for window "wp" given how many
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	220 * physical lines we want to scroll down.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	221 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	222 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	223 skipcol_from_plines(win_T *wp, int plines_off)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	224 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	225 int width1 = wp->w_width - win_col_off(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	226
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	227 int skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	228 if (plines_off > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	229 skipcol += width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	230 if (plines_off > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	231 skipcol += (width1 + win_col_off2(wp)) * (plines_off - 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	232 return skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	233 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	234
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	235 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	236 * Set curwin->w_skipcol to zero and redraw later if needed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	237 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	238 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	239 reset_skipcol(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	240 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	241 if (curwin->w_skipcol == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	242 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	243
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	244 curwin->w_skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	245
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	246 // Should use the least expensive way that displays all that changed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	247 // UPD_NOT_VALID is too expensive, UPD_REDRAW_TOP does not redraw
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	248 // enough when the top line gets another screen line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	249 redraw_later(UPD_SOME_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	250 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	251
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	252 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	253 * Update curwin->w_topline and redraw if necessary.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	254 * Used to update the screen before printing a message.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	255 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	256 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	257 update_topline_redraw(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	258 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	259 update_topline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	260 if (must_redraw)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	261 update_screen(0);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	262 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	263
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	264 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	265 * Update curwin->w_topline to move the cursor onto the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	266 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	267 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	268 update_topline(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	269 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	270 long line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	271 int halfheight;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	272 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	273 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	274 linenr_T lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	275 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	276 int check_topline = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	277 int check_botline = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	278 long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	279 int save_so = *so_ptr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	280
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	281 // Cursor is updated instead when this is TRUE for 'splitkeep'.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	282 if (skip_update_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	283 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	284
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	285 // If there is no valid screen and when the window height is zero just use
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	286 // the cursor line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	287 if (!screen_valid(TRUE) \|\| curwin->w_height == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	288 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	289 check_cursor_lnum();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	290 curwin->w_topline = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	291 curwin->w_botline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	292 curwin->w_scbind_pos = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	293 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	294 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	295
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	296 check_cursor_moved(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	297 if (curwin->w_valid & VALID_TOPLINE)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	298 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	299
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	300 // When dragging with the mouse, don't scroll that quickly
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	301 if (mouse_dragging > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	302 *so_ptr = mouse_dragging - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	303
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	304 linenr_T old_topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	305 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	306 int old_topfill = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	307 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	308
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	309 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	310 * If the buffer is empty, always set topline to 1.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	311 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	312 if (BUFEMPTY()) // special case - file is empty
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	313 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	314 if (curwin->w_topline != 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	315 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	316 curwin->w_topline = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	317 curwin->w_botline = 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	318 curwin->w_valid \|= VALID_BOTLINE\|VALID_BOTLINE_AP;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	319 curwin->w_scbind_pos = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	320 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	321
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	322 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	323 * If the cursor is above or near the top of the window, scroll the window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	324 * to show the line the cursor is in, with 'scrolloff' context.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	325 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	326 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	327 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	328 if (curwin->w_topline > 1 \|\| curwin->w_skipcol > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	329 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	330 // If the cursor is above topline, scrolling is always needed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	331 // If the cursor is far below topline and there is no folding,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	332 // scrolling down is never needed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	333 if (curwin->w_cursor.lnum < curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	334 check_topline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	335 else if (check_top_offset())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	336 check_topline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	337 else if (curwin->w_skipcol > 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	338 && curwin->w_cursor.lnum == curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	339 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	340 colnr_T vcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	341
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	342 // Check that the cursor position is visible. Add columns for
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	343 // the marker displayed in the top-left if needed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	344 getvvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	345 int overlap = sms_marker_overlap(curwin, curwin_col_off()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	346 - curwin_col_off2());
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	347 if (curwin->w_skipcol + overlap > vcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	348 check_topline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	349 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	350 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	351 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	352 // Check if there are more filler lines than allowed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	353 if (!check_topline && curwin->w_topfill > diff_check_fill(curwin,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	354 curwin->w_topline))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	355 check_topline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	356 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	357
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	358 if (check_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	359 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	360 halfheight = curwin->w_height / 2 - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	361 if (halfheight < 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	362 halfheight = 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	363
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	364 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	365 if (hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	366 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	367 // Count the number of logical lines between the cursor and
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	368 // topline + scrolloff (approximation of how much will be
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	369 // scrolled).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	370 n = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	371 for (lnum = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	372 lnum < curwin->w_topline + *so_ptr; ++lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	373 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	374 ++n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	375 // stop at end of file or when we know we are far off
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	376 if (lnum >= curbuf->b_ml.ml_line_count \|\| n >= halfheight)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	377 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	378 (void)hasFolding(lnum, NULL, &lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	379 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	380 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	381 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	382 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	383 n = curwin->w_topline + *so_ptr - curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	384
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	385 // If we weren't very close to begin with, we scroll to put the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	386 // cursor in the middle of the window. Otherwise put the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	387 // near the top of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	388 if (n >= halfheight)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	389 scroll_cursor_halfway(FALSE, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	390 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	391 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	392 scroll_cursor_top(scrolljump_value(), FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	393 check_botline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	394 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	395 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	396
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	397 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	398 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	399 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	400 // Make sure topline is the first line of a fold.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	401 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	402 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	403 check_botline = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	404 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	405 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	406
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	407 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	408 * If the cursor is below the bottom of the window, scroll the window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	409 * to put the cursor on the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	410 * When w_botline is invalid, recompute it first, to avoid a redraw later.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	411 * If w_botline was approximated, we might need a redraw later in a few
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	412 * cases, but we don't want to spend (a lot of) time recomputing w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	413 * for every small change.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	414 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	415 if (check_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	416 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	417 if (!(curwin->w_valid & VALID_BOTLINE_AP))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	418 validate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	419
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	420 if (curwin->w_botline <= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	421 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	422 if (curwin->w_cursor.lnum < curwin->w_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	423 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	424 if (((long)curwin->w_cursor.lnum
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	425 >= (long)curwin->w_botline - *so_ptr
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	426 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	427 \|\| hasAnyFolding(curwin)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	428 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	429 ))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	430 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	431 lineoff_T loff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	432
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	433 // Cursor is (a few lines) above botline, check if there are
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	434 // 'scrolloff' window lines below the cursor. If not, need to
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	435 // scroll.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	436 n = curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	437 loff.lnum = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	438 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	439 // In a fold go to its last line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	440 (void)hasFolding(loff.lnum, NULL, &loff.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	441 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	442 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	443 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	444 n += curwin->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	445 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	446 loff.height = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	447 while (loff.lnum < curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	448 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	449 && (loff.lnum + 1 < curwin->w_botline \|\| loff.fill == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	450 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	451 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	452 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	453 n += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	454 if (n >= *so_ptr)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	455 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	456 botline_forw(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	457 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	458 if (n >= *so_ptr)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	459 // sufficient context, no need to scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	460 check_botline = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	461 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	462 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	463 // sufficient context, no need to scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	464 check_botline = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	465 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	466 if (check_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	467 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	468 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	469 if (hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	470 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	471 // Count the number of logical lines between the cursor and
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	472 // botline - scrolloff (approximation of how much will be
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	473 // scrolled).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	474 line_count = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	475 for (lnum = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	476 lnum >= curwin->w_botline - *so_ptr; --lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	477 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	478 ++line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	479 // stop at end of file or when we know we are far off
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	480 if (lnum <= 0 \|\| line_count > curwin->w_height + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	481 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	482 (void)hasFolding(lnum, &lnum, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	483 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	484 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	485 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	486 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	487 line_count = curwin->w_cursor.lnum - curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	488 + 1 + *so_ptr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	489 if (line_count <= curwin->w_height + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	490 scroll_cursor_bot(scrolljump_value(), FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	491 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	492 scroll_cursor_halfway(FALSE, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	493 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	494 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	495 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	496 curwin->w_valid \|= VALID_TOPLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	497
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	498 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	499 * Need to redraw when topline changed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	500 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	501 if (curwin->w_topline != old_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	502 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	503 \|\| curwin->w_topfill != old_topfill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	504 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	505 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	506 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	507 dollar_vcol = -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	508 redraw_later(UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	509
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	510 // When 'smoothscroll' is not set, should reset w_skipcol.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	511 if (!curwin->w_p_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	512 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	513 else if (curwin->w_skipcol != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	514 redraw_later(UPD_SOME_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	515
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	516 // May need to set w_skipcol when cursor in w_topline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	517 if (curwin->w_cursor.lnum == curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	518 validate_cursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	519 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	520
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	521 *so_ptr = save_so;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	522 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	523
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	524 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	525 * Return the scrolljump value to use for the current window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	526 * When 'scrolljump' is positive use it as-is.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	527 * When 'scrolljump' is negative use it as a percentage of the window height.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	528 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	529 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	530 scrolljump_value(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	531 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	532 if (p_sj >= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	533 return (int)p_sj;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	534 return (curwin->w_height * -p_sj) / 100;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	535 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	536
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	537 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	538 * Return TRUE when there are not 'scrolloff' lines above the cursor for the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	539 * current window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	540 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	541 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	542 check_top_offset(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	543 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	544 lineoff_T loff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	545 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	546 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	547
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	548 if (curwin->w_cursor.lnum < curwin->w_topline + so
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	549 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	550 \|\| hasAnyFolding(curwin)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	551 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	552 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	553 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	554 loff.lnum = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	555 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	556 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	557 n = curwin->w_topfill; // always have this context
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	558 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	559 n = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	560 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	561 // Count the visible screen lines above the cursor line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	562 while (n < so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	563 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	564 topline_back(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	565 // Stop when included a line above the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	566 if (loff.lnum < curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	567 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	568 \|\| (loff.lnum == curwin->w_topline && loff.fill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	569 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	570 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	571 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	572 n += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	573 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	574 if (n < so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	575 return TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	576 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	577 return FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	578 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	579
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	580 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	581 * Update w_curswant.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	582 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	583 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	584 update_curswant_force(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	585 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	586 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	587 curwin->w_curswant = curwin->w_virtcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	588 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	589 - curwin->w_virtcol_first_char
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	590 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	591 ;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	592 curwin->w_set_curswant = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	593 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	594
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	595 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	596 * Update w_curswant if w_set_curswant is set.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	597 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	598 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	599 update_curswant(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	600 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	601 if (curwin->w_set_curswant)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	602 update_curswant_force();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	603 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	604
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	605 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	606 * Check if the cursor has moved. Set the w_valid flag accordingly.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	607 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	608 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	609 check_cursor_moved(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	610 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	611 if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	612 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	613 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	614 \|VALID_CHEIGHT\|VALID_CROW\|VALID_TOPLINE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	615 \|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	616 wp->w_valid_cursor = wp->w_cursor;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	617 wp->w_valid_leftcol = wp->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	618 wp->w_valid_skipcol = wp->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	619 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	620 else if (wp->w_skipcol != wp->w_valid_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	621 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	622 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	623 \|VALID_CHEIGHT\|VALID_CROW
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	624 \|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	625 wp->w_valid_cursor = wp->w_cursor;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	626 wp->w_valid_leftcol = wp->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	627 wp->w_valid_skipcol = wp->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	628 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	629 else if (wp->w_cursor.col != wp->w_valid_cursor.col
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	630 \|\| wp->w_leftcol != wp->w_valid_leftcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	631 \|\| wp->w_cursor.coladd != wp->w_valid_cursor.coladd)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	632 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	633 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	634 wp->w_valid_cursor.col = wp->w_cursor.col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	635 wp->w_valid_leftcol = wp->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	636 wp->w_valid_cursor.coladd = wp->w_cursor.coladd;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	637 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	638 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	639
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	640 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	641 * Call this function when some window settings have changed, which require
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	642 * the cursor position, botline and topline to be recomputed and the window to
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	643 * be redrawn. E.g, when changing the 'wrap' option or folding.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	644 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	645 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	646 changed_window_setting(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	647 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	648 changed_window_setting_win(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	649 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	650
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	651 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	652 changed_window_setting_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	653 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	654 wp->w_lines_valid = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	655 changed_line_abv_curs_win(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	656 wp->w_valid &= ~(VALID_BOTLINE\|VALID_BOTLINE_AP\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	657 redraw_win_later(wp, UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	658 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	659
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	660 #if defined(FEAT_PROP_POPUP) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	661 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	662 * Call changed_window_setting_win() for every window containing "buf".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	663 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	664 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	665 changed_window_setting_buf(buf_T *buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	666 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	667 tabpage_T *tp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	668 win_T *wp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	669
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	670 FOR_ALL_TAB_WINDOWS(tp, wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	671 if (wp->w_buffer == buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	672 changed_window_setting_win(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	673 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	674 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	675
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	676 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	677 * Set wp->w_topline to a certain number.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	678 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	679 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	680 set_topline(win_T *wp, linenr_T lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	681 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	682 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	683 linenr_T prev_topline = wp->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	684 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	685
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	686 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	687 // go to first of folded lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	688 (void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	689 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	690 // Approximate the value of w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	691 wp->w_botline += lnum - wp->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	692 if (wp->w_botline > wp->w_buffer->b_ml.ml_line_count + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	693 wp->w_botline = wp->w_buffer->b_ml.ml_line_count + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	694 wp->w_topline = lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	695 wp->w_topline_was_set = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	696 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	697 if (lnum != prev_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	698 // Keep the filler lines when the topline didn't change.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	699 wp->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	700 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	701 wp->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	702 // Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	703 redraw_later(UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	704 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	705
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	706 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	707 * Call this function when the length of the cursor line (in screen
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	708 * characters) has changed, and the change is before the cursor.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	709 * If the line length changed the number of screen lines might change,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	710 * requiring updating w_topline. That may also invalidate w_crow.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	711 * Need to take care of w_botline separately!
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	712 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	713 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	714 changed_cline_bef_curs(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	715 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	716 curwin->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL\|VALID_CROW
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	717 \|VALID_CHEIGHT\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	718 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	719
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	720 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	721 changed_cline_bef_curs_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	722 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	723 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL\|VALID_CROW
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	724 \|VALID_CHEIGHT\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	725 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	726
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	727 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	728 * Call this function when the length of a line (in screen characters) above
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	729 * the cursor have changed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	730 * Need to take care of w_botline separately!
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	731 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	732 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	733 changed_line_abv_curs(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	734 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	735 curwin->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL\|VALID_CROW
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	736 \|VALID_CHEIGHT\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	737 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	738
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	739 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	740 changed_line_abv_curs_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	741 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	742 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL\|VALID_CROW
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	743 \|VALID_CHEIGHT\|VALID_TOPLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	744 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	745
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	746 #if defined(FEAT_PROP_POPUP) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	747 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	748 * Display of line has changed for "buf", invalidate cursor position and
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	749 * w_botline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	750 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	751 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	752 changed_line_display_buf(buf_T *buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	753 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	754 win_T *wp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	755
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	756 FOR_ALL_WINDOWS(wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	757 if (wp->w_buffer == buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	758 wp->w_valid &= ~(VALID_WROW\|VALID_WCOL\|VALID_VIRTCOL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	759 \|VALID_CROW\|VALID_CHEIGHT
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	760 \|VALID_TOPLINE\|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	761 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	762 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	763
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	764 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	765 * Make sure the value of curwin->w_botline is valid.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	766 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	767 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	768 validate_botline(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	769 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	770 validate_botline_win(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	771 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	772
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	773 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	774 * Make sure the value of wp->w_botline is valid.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	775 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	776 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	777 validate_botline_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	778 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	779 if (!(wp->w_valid & VALID_BOTLINE))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	780 comp_botline(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	781 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	782
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	783 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	784 * Mark curwin->w_botline as invalid (because of some change in the buffer).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	785 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	786 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	787 invalidate_botline(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	788 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	789 curwin->w_valid &= ~(VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	790 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	791
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	792 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	793 invalidate_botline_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	794 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	795 wp->w_valid &= ~(VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	796 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	797
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	798 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	799 approximate_botline_win(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	800 win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	801 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	802 wp->w_valid &= ~VALID_BOTLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	803 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	804
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	805 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	806 * Return TRUE if curwin->w_wrow and curwin->w_wcol are valid.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	807 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	808 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	809 cursor_valid(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	810 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	811 check_cursor_moved(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	812 return ((curwin->w_valid & (VALID_WROW\|VALID_WCOL)) ==
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	813 (VALID_WROW\|VALID_WCOL));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	814 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	815
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	816 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	817 * Validate cursor position. Makes sure w_wrow and w_wcol are valid.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	818 * w_topline must be valid, you may need to call update_topline() first!
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	819 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	820 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	821 validate_cursor(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	822 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	823 check_cursor_lnum();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	824 check_cursor_moved(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	825 if ((curwin->w_valid & (VALID_WCOL\|VALID_WROW)) != (VALID_WCOL\|VALID_WROW))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	826 curs_columns(TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	827 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	828
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	829 #if defined(FEAT_GUI) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	830 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	831 * validate w_cline_row.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	832 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	833 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	834 validate_cline_row(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	835 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	836 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	837 * First make sure that w_topline is valid (after moving the cursor).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	838 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	839 update_topline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	840 check_cursor_moved(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	841 if (!(curwin->w_valid & VALID_CROW))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	842 curs_rows(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	843 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	844 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	845
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	846 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	847 * Compute wp->w_cline_row and wp->w_cline_height, based on the current value
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	848 * of wp->w_topline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	849 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	850 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	851 curs_rows(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	852 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	853 linenr_T lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	854 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	855 int all_invalid;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	856 int valid;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	857 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	858 long fold_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	859 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	860
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	861 // Check if wp->w_lines[].wl_size is invalid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	862 all_invalid = (!redrawing()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	863 \|\| wp->w_lines_valid == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	864 \|\| wp->w_lines[0].wl_lnum > wp->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	865 i = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	866 wp->w_cline_row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	867 for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	868 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	869 valid = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	870 if (!all_invalid && i < wp->w_lines_valid)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	871 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	872 if (wp->w_lines[i].wl_lnum < lnum \|\| !wp->w_lines[i].wl_valid)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	873 continue; // skip changed or deleted lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	874 if (wp->w_lines[i].wl_lnum == lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	875 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	876 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	877 // Check for newly inserted lines below this row, in which
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	878 // case we need to check for folded lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	879 if (!wp->w_buffer->b_mod_set
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	880 \|\| wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	881 \|\| wp->w_buffer->b_mod_top
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	882 > wp->w_lines[i].wl_lastlnum + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	883 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	884 valid = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	885 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	886 else if (wp->w_lines[i].wl_lnum > lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	887 --i; // hold at inserted lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	888 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	889 if (valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	890 && (lnum != wp->w_topline \|\| (wp->w_skipcol == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	891 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	892 && !wp->w_p_diff
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	893 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	894 )))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	895 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	896 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	897 lnum = wp->w_lines[i].wl_lastlnum + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	898 // Cursor inside folded lines, don't count this row
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	899 if (lnum > wp->w_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	900 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	901 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	902 ++lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	903 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	904 wp->w_cline_row += wp->w_lines[i].wl_size;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	905 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	906 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	907 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	908 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	909 fold_count = foldedCount(wp, lnum, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	910 if (fold_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	911 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	912 lnum += fold_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	913 if (lnum > wp->w_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	914 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	915 ++wp->w_cline_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	916 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	917 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	918 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	919 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	920 wp->w_cline_row += plines_correct_topline(wp, lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	921 ++lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	922 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	923 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	924 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	925
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	926 check_cursor_moved(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	927 if (!(wp->w_valid & VALID_CHEIGHT))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	928 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	929 if (all_invalid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	930 \|\| i == wp->w_lines_valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	931 \|\| (i < wp->w_lines_valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	932 && (!wp->w_lines[i].wl_valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	933 \|\| wp->w_lines[i].wl_lnum != wp->w_cursor.lnum)))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	934 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	935 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	936 if (wp->w_cursor.lnum == wp->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	937 wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	938 TRUE) + wp->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	939 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	940 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	941 wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	942 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	943 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	944 NULL, NULL, TRUE, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	945 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	946 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	947 else if (i > wp->w_lines_valid)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	948 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	949 // a line that is too long to fit on the last screen line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	950 wp->w_cline_height = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	951 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	952 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	953 NULL, NULL, TRUE, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	954 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	955 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	956 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	957 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	958 wp->w_cline_height = wp->w_lines[i].wl_size;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	959 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	960 wp->w_cline_folded = wp->w_lines[i].wl_folded;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	961 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	962 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	963 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	964
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	965 redraw_for_cursorline(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	966 wp->w_valid \|= VALID_CROW\|VALID_CHEIGHT;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	967 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	968
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	969 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	970 * Validate curwin->w_virtcol only.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	971 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	972 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	973 validate_virtcol(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	974 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	975 validate_virtcol_win(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	976 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	977
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	978 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	979 * Validate wp->w_virtcol only.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	980 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	981 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	982 validate_virtcol_win(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	983 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	984 check_cursor_moved(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	985
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	986 if (wp->w_valid & VALID_VIRTCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	987 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	988
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	989 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	990 wp->w_virtcol_first_char = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	991 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	992 getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	993 #ifdef FEAT_SYN_HL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	994 redraw_for_cursorcolumn(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	995 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	996 wp->w_valid \|= VALID_VIRTCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	997 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	998
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	999 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1000 * Validate curwin->w_cline_height only.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1001 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1002 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1003 validate_cheight(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1004 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1005 check_cursor_moved(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1006
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1007 if (curwin->w_valid & VALID_CHEIGHT)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1008 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1009
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1010 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1011 if (curwin->w_cursor.lnum == curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1012 curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1013 + curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1014 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1015 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1016 curwin->w_cline_height = plines(curwin->w_cursor.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1017 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1018 curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1019 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1020 curwin->w_valid \|= VALID_CHEIGHT;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1021 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1022
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1023 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1024 * Validate w_wcol and w_virtcol only.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1025 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1026 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1027 validate_cursor_col(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1028 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1029 colnr_T off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1030 colnr_T col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1031 int width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1032
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1033 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1034
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1035 if (curwin->w_valid & VALID_WCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1036 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1037
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1038 col = curwin->w_virtcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1039 off = curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1040 col += off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1041 width = curwin->w_width - off + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1042
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1043 // long line wrapping, adjust curwin->w_wrow
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1044 if (curwin->w_p_wrap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1045 && col >= (colnr_T)curwin->w_width
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1046 && width > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1047 // use same formula as what is used in curs_columns()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1048 col -= ((col - curwin->w_width) / width + 1) * width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1049 if (col > (int)curwin->w_leftcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1050 col -= curwin->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1051 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1052 col = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1053 curwin->w_wcol = col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1054
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1055 curwin->w_valid \|= VALID_WCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1056 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1057 curwin->w_flags &= ~WFLAG_WCOL_OFF_ADDED;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1058 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1059 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1060
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1061 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1062 * Compute offset of a window, occupied by absolute or relative line number,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1063 * fold column and sign column (these don't move when scrolling horizontally).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1064 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1065 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1066 win_col_off(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1067 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1068 return (((wp->w_p_nu \|\| wp->w_p_rnu) ? number_width(wp) + 1 : 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1069 + (cmdwin_type == 0 \|\| wp != curwin ? 0 : 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1070 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1071 + wp->w_p_fdc
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1072 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1073 #ifdef FEAT_SIGNS
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1074 + (signcolumn_on(wp) ? 2 : 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1075 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1076 );
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1077 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1078
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1079 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1080 curwin_col_off(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1081 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1082 return win_col_off(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1083 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1084
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1085 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1086 * Return the difference in column offset for the second screen line of a
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1087 * wrapped line. It's positive if 'number' or 'relativenumber' is on and 'n'
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1088 * is in 'cpoptions'.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1089 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1090 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1091 win_col_off2(win_T *wp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1092 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1093 if ((wp->w_p_nu \|\| wp->w_p_rnu) && vim_strchr(p_cpo, CPO_NUMCOL) != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1094 return number_width(wp) + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1095 return 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1096 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1097
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1098 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1099 curwin_col_off2(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1100 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1101 return win_col_off2(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1102 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1103
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1104 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1105 * Compute curwin->w_wcol and curwin->w_virtcol.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1106 * Also updates curwin->w_wrow and curwin->w_cline_row.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1107 * Also updates curwin->w_leftcol.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1108 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1109 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1110 curs_columns(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1111 int may_scroll) // when TRUE, may scroll horizontally
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1112 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1113 int diff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1114 int extra; // offset for first screen line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1115 int off_left, off_right;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1116 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1117 int p_lines;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1118 int width1; // text width for first screen line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1119 int width2 = 0; // text width for second and later screen line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1120 int new_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1121 colnr_T startcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1122 colnr_T endcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1123 colnr_T prev_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1124 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1125 long siso = get_sidescrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1126 int did_sub_skipcol = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1127
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1128 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1129 * First make sure that w_topline is valid (after moving the cursor).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1130 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1131 update_topline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1132
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1133 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1134 * Next make sure that w_cline_row is valid.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1135 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1136 if (!(curwin->w_valid & VALID_CROW))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1137 curs_rows(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1138
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1139 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1140 // will be set by getvvcol() but not reset
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1141 curwin->w_virtcol_first_char = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1142 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1143
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1144 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1145 * Compute the number of virtual columns.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1146 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1147 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1148 if (curwin->w_cline_folded)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1149 // In a folded line the cursor is always in the first column
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1150 startcol = curwin->w_virtcol = endcol = curwin->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1151 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1152 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1153 getvvcol(curwin, &curwin->w_cursor,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1154 &startcol, &(curwin->w_virtcol), &endcol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1155
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1156 // remove '$' from change command when cursor moves onto it
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1157 if (startcol > dollar_vcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1158 dollar_vcol = -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1159
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1160 extra = curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1161 curwin->w_wcol = curwin->w_virtcol + extra;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1162 endcol += extra;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1163
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1164 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1165 * Now compute w_wrow, counting screen lines from w_cline_row.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1166 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1167 curwin->w_wrow = curwin->w_cline_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1168
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1169 width1 = curwin->w_width - extra;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1170 if (width1 <= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1171 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1172 // No room for text, put cursor in last char of window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1173 // If not wrapping, the last non-empty line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1174 curwin->w_wcol = curwin->w_width - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1175 if (curwin->w_p_wrap)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1176 curwin->w_wrow = curwin->w_height - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1177 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1178 curwin->w_wrow = curwin->w_height - 1 - curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1179 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1180 else if (curwin->w_p_wrap && curwin->w_width != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1181 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1182 width2 = width1 + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1183
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1184 // skip columns that are not visible
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1185 if (curwin->w_cursor.lnum == curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1186 && curwin->w_skipcol > 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1187 && curwin->w_wcol >= curwin->w_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1188 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1189 // Deduct by multiples of width2. This allows the long line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1190 // wrapping formula below to correctly calculate the w_wcol value
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1191 // when wrapping.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1192 if (curwin->w_skipcol <= width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1193 curwin->w_wcol -= width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1194 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1195 curwin->w_wcol -= width2
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1196 * (((curwin->w_skipcol - width1) / width2) + 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1197
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1198 did_sub_skipcol = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1199 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1200
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1201 // long line wrapping, adjust curwin->w_wrow
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1202 if (curwin->w_wcol >= curwin->w_width)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1203 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1204 // this same formula is used in validate_cursor_col()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1205 n = (curwin->w_wcol - curwin->w_width) / width2 + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1206 curwin->w_wcol -= n * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1207 curwin->w_wrow += n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1208
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1209 #ifdef FEAT_LINEBREAK
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1210 // When cursor wraps to first char of next line in Insert
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1211 // mode, the 'showbreak' string isn't shown, backup to first
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1212 // column
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1213 char_u *sbr = get_showbreak_value(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1214 if (sbr && ml_get_cursor() == NUL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1215 && curwin->w_wcol == vim_strsize(sbr))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1216 curwin->w_wcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1217 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1218 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1219 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1220
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1221 // No line wrapping: compute curwin->w_leftcol if scrolling is on and line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1222 // is not folded.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1223 // If scrolling is off, curwin->w_leftcol is assumed to be 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1224 else if (may_scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1225 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1226 && !curwin->w_cline_folded
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1227 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1228 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1229 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1230 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1231 if (curwin->w_virtcol_first_char > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1232 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1233 int cols = (curwin->w_width - extra);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1234 int rows = cols > 0 ? curwin->w_virtcol_first_char / cols : 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1235
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1236 // each "above" text prop shifts the text one row down
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1237 curwin->w_wrow += rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1238 curwin->w_wcol -= rows * cols;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1239 endcol -= rows * cols;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1240 curwin->w_cline_height = rows + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1241 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1242 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1243 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1244 * If Cursor is left of the screen, scroll rightwards.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1245 * If Cursor is right of the screen, scroll leftwards
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1246 * If we get closer to the edge than 'sidescrolloff', scroll a little
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1247 * extra
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1248 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1249 off_left = (int)startcol - (int)curwin->w_leftcol - siso;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1250 off_right = (int)endcol - (int)(curwin->w_leftcol + curwin->w_width
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1251 - siso) + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1252 if (off_left < 0 \|\| off_right > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1253 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1254 if (off_left < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1255 diff = -off_left;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1256 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1257 diff = off_right;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1258
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1259 // When far off or not enough room on either side, put cursor in
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1260 // middle of window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1261 if (p_ss == 0 \|\| diff >= width1 / 2 \|\| off_right >= off_left)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1262 new_leftcol = curwin->w_wcol - extra - width1 / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1263 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1264 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1265 if (diff < p_ss)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1266 diff = p_ss;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1267 if (off_left < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1268 new_leftcol = curwin->w_leftcol - diff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1269 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1270 new_leftcol = curwin->w_leftcol + diff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1271 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1272 if (new_leftcol < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1273 new_leftcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1274 if (new_leftcol != (int)curwin->w_leftcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1275 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1276 curwin->w_leftcol = new_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1277 // screen has to be redrawn with new curwin->w_leftcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1278 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1279 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1280 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1281 curwin->w_wcol -= curwin->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1282 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1283 else if (curwin->w_wcol > (int)curwin->w_leftcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1284 curwin->w_wcol -= curwin->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1285 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1286 curwin->w_wcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1287
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1288 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1289 // Skip over filler lines. At the top use w_topfill, there
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1290 // may be some filler lines above the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1291 if (curwin->w_cursor.lnum == curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1292 curwin->w_wrow += curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1293 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1294 curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1295 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1296
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1297 prev_skipcol = curwin->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1298
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1299 p_lines = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1300
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1301 if ((curwin->w_wrow >= curwin->w_height
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1302 \|\| ((prev_skipcol > 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1303 \|\| curwin->w_wrow + so >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1304 && (p_lines =
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1305 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1306 plines_win_nofill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1307 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1308 plines_win
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1309 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1310 (curwin, curwin->w_cursor.lnum, FALSE))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1311 - 1 >= curwin->w_height))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1312 && curwin->w_height != 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1313 && curwin->w_cursor.lnum == curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1314 && width2 > 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1315 && curwin->w_width != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1316 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1317 // Cursor past end of screen. Happens with a single line that does
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1318 // not fit on screen. Find a skipcol to show the text around the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1319 // cursor. Avoid scrolling all the time. compute value of "extra":
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1320 // 1: Less than 'scrolloff' lines above
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1321 // 2: Less than 'scrolloff' lines below
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1322 // 3: both of them
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1323 extra = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1324 if (curwin->w_skipcol + so * width2 > curwin->w_virtcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1325 extra = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1326 // Compute last display line of the buffer line that we want at the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1327 // bottom of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1328 if (p_lines == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1329 p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1330 --p_lines;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1331 if (p_lines > curwin->w_wrow + so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1332 n = curwin->w_wrow + so;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1333 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1334 n = p_lines;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1335 if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width2 - so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1336 extra += 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1337
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1338 if (extra == 3 \|\| curwin->w_height <= so * 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1339 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1340 // not enough room for 'scrolloff', put cursor in the middle
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1341 n = curwin->w_virtcol / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1342 if (n > curwin->w_height / 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1343 n -= curwin->w_height / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1344 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1345 n = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1346 // don't skip more than necessary
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1347 if (n > p_lines - curwin->w_height + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1348 n = p_lines - curwin->w_height + 1;
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1349 if (n > 0)
0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1350 curwin->w_skipcol = width1 + (n - 1) * width2;
0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1351 else
0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1352 curwin->w_skipcol = 0;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1353 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1354 else if (extra == 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1355 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1356 // less than 'scrolloff' lines above, decrease skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1357 extra = (curwin->w_skipcol + so * width2 - curwin->w_virtcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1358 + width2 - 1) / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1359 if (extra > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1360 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1361 if ((colnr_T)(extra * width2) > curwin->w_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1362 extra = curwin->w_skipcol / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1363 curwin->w_skipcol -= extra * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1364 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1365 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1366 else if (extra == 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1367 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1368 // less than 'scrolloff' lines below, increase skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1369 endcol = (n - curwin->w_height + 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1370 while (endcol > curwin->w_virtcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1371 endcol -= width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1372 if (endcol > curwin->w_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1373 curwin->w_skipcol = endcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1374 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1375
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1376 // adjust w_wrow for the changed w_skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1377 if (did_sub_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1378 curwin->w_wrow -= (curwin->w_skipcol - prev_skipcol) / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1379 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1380 curwin->w_wrow -= curwin->w_skipcol / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1381
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1382 if (curwin->w_wrow >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1383 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1384 // small window, make sure cursor is in it
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1385 extra = curwin->w_wrow - curwin->w_height + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1386 curwin->w_skipcol += extra * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1387 curwin->w_wrow -= extra;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1388 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1389
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1390 extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1391 if (extra > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1392 win_ins_lines(curwin, 0, extra, FALSE, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1393 else if (extra < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1394 win_del_lines(curwin, 0, -extra, FALSE, FALSE, 0);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1395 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1396 else if (!curwin->w_p_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1397 curwin->w_skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1398 if (prev_skipcol != curwin->w_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1399 redraw_later(UPD_SOME_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1400
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1401 #ifdef FEAT_SYN_HL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1402 redraw_for_cursorcolumn(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1403 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1404 #if defined(FEAT_PROP_POPUP) && defined(FEAT_TERMINAL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1405 if (popup_is_popup(curwin) && curbuf->b_term != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1406 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1407 curwin->w_wrow += popup_top_extra(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1408 curwin->w_wcol += popup_left_extra(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1409 curwin->w_flags \|= WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1410 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1411 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1412 curwin->w_flags &= ~(WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1413 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1414
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1415 // now w_leftcol and w_skipcol are valid, avoid check_cursor_moved()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1416 // thinking otherwise
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1417 curwin->w_valid_leftcol = curwin->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1418 curwin->w_valid_skipcol = curwin->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1419
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1420 curwin->w_valid \|= VALID_WCOL\|VALID_WROW\|VALID_VIRTCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1421 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1422
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1423 #if (defined(FEAT_EVAL) \|\| defined(FEAT_PROP_POPUP)) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1424 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1425 * Compute the screen position of text character at "pos" in window "wp"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1426 * The resulting values are one-based, zero when character is not visible.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1427 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1428 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1429 textpos2screenpos(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1430 win_T *wp,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1431 pos_T *pos,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1432 int *rowp, // screen row
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1433 int *scolp, // start screen column
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1434 int *ccolp, // cursor screen column
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1435 int *ecolp) // end screen column
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1436 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1437 colnr_T scol = 0, ccol = 0, ecol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1438 int row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1439 colnr_T coloff = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1440
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1441 if (pos->lnum >= wp->w_topline && pos->lnum <= wp->w_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1442 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1443 colnr_T col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1444 int width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1445 linenr_T lnum = pos->lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1446 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1447 int is_folded;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1448
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1449 is_folded = hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1450 #endif
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	1451 row = plines_m_win(wp, wp->w_topline, lnum - 1, FALSE);
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1452 // "row" should be the screen line where line "lnum" begins, which can
0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1453 // be negative if "lnum" is "w_topline" and "w_skipcol" is non-zero.
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	1454 row -= adjust_plines_for_skipcol(wp);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1455
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1456 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1457 // Add filler lines above this buffer line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1458 row += lnum == wp->w_topline ? wp->w_topfill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1459 : diff_check_fill(wp, lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1460 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1461
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1462 colnr_T off = win_col_off(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1463 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1464 if (is_folded)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1465 {
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	1466 row += W_WINROW(wp) + 1;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1467 coloff = wp->w_wincol + 1 + off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1468 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1469 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1470 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1471 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1472 getvcol(wp, pos, &scol, &ccol, &ecol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1473
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1474 // similar to what is done in validate_cursor_col()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1475 col = scol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1476 col += off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1477 width = wp->w_width - off + win_col_off2(wp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1478
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1479 // long line wrapping, adjust row
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1480 if (wp->w_p_wrap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1481 && col >= (colnr_T)wp->w_width
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1482 && width > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1483 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1484 // use same formula as what is used in curs_columns()
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1485 int rowoff = ((col - wp->w_width) / width + 1);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1486 col -= rowoff * width;
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1487 row += rowoff;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1488 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1489 col -= wp->w_leftcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1490 if (col >= wp->w_width)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1491 col = -1;
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	1492 if (col >= 0 && row >= 0 && row < wp->w_height)
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1493 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1494 coloff = col - scol + wp->w_wincol + 1;
32876 522f16e3e058 patch 9.0.1747: screenpos() may cause unnecessary redraw Christian Brabandt <cb@256bit.org> parents: 32832 diff changeset	1495 row += W_WINROW(wp) + 1;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1496 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1497 else
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1498 // character is out of the window
0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1499 row = scol = ccol = ecol = 0;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1500 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1501 }
32832 0503955dcd34 patch 9.0.1729: screenpos() wrong when w_skipcol and cpoptions+=n Christian Brabandt <cb@256bit.org> parents: 32801 diff changeset	1502 *rowp = row;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1503 *scolp = scol + coloff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1504 *ccolp = ccol + coloff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1505 *ecolp = ecol + coloff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1506 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1507 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1508
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1509 #if defined(FEAT_EVAL) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1510 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1511 * "screenpos({winid}, {lnum}, {col})" function
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1512 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1513 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1514 f_screenpos(typval_T argvars UNUSED, typval_T rettv)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1515 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1516 dict_T *dict;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1517 win_T *wp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1518 pos_T pos;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1519 int row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1520 int scol = 0, ccol = 0, ecol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1521
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1522 if (rettv_dict_alloc(rettv) == FAIL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1523 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1524 dict = rettv->vval.v_dict;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1525
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1526 if (in_vim9script()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1527 && (check_for_number_arg(argvars, 0) == FAIL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1528 \|\| check_for_number_arg(argvars, 1) == FAIL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1529 \|\| check_for_number_arg(argvars, 2) == FAIL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1530 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1531
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1532 wp = find_win_by_nr_or_id(&argvars[0]);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1533 if (wp == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1534 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1535
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1536 pos.lnum = tv_get_number(&argvars[1]);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1537 if (pos.lnum > wp->w_buffer->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1538 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1539 semsg(_(e_invalid_line_number_nr), pos.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1540 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1541 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1542 pos.col = tv_get_number(&argvars[2]) - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1543 pos.coladd = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1544 textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1545
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1546 dict_add_number(dict, "row", row);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1547 dict_add_number(dict, "col", scol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1548 dict_add_number(dict, "curscol", ccol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1549 dict_add_number(dict, "endcol", ecol);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1550 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1551
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1552 /*
32801 6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1553 * Convert a virtual (screen) column to a character column. The first column
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1554 * is one. For a multibyte character, the column number of the first byte is
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1555 * returned.
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1556 */
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1557 static int
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1558 virtcol2col(win_T *wp, linenr_T lnum, int vcol)
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1559 {
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1560 int offset = vcol2col(wp, lnum, vcol);
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1561 char_u *line = ml_get_buf(wp->w_buffer, lnum, FALSE);
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1562 char_u *p = line + offset;
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1563
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1564 // For a multibyte character, need to return the column number of the first
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1565 // byte.
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1566 MB_PTR_BACK(line, p);
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1567
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1568 return (int)(p - line + 1);
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1569 }
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1570
6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1571 /*
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1572 * "virtcol2col({winid}, {lnum}, {col})" function
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1573 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1574 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1575 f_virtcol2col(typval_T argvars UNUSED, typval_T rettv)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1576 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1577 win_T *wp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1578 linenr_T lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1579 int screencol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1580 int error = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1581
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1582 rettv->vval.v_number = -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1583
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1584 if (check_for_number_arg(argvars, 0) == FAIL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1585 \|\| check_for_number_arg(argvars, 1) == FAIL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1586 \|\| check_for_number_arg(argvars, 2) == FAIL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1587 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1588
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1589 wp = find_win_by_nr_or_id(&argvars[0]);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1590 if (wp == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1591 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1592
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1593 lnum = tv_get_number_chk(&argvars[1], &error);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1594 if (error \|\| lnum < 0 \|\| lnum > wp->w_buffer->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1595 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1596
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1597 screencol = tv_get_number_chk(&argvars[2], &error);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1598 if (error \|\| screencol < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1599 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1600
32801 6e1734ac14eb patch 9.0.1717: virtcol2col returns last byte of a multi-byte char Christian Brabandt <cb@256bit.org> parents: 32670 diff changeset	1601 rettv->vval.v_number = virtcol2col(wp, lnum, screencol);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1602 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1603 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1604
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1605 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1606 * Scroll the current window down by "line_count" logical lines. "CTRL-Y"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1607 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1608 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1609 scrolldown(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1610 long line_count,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1611 int byfold UNUSED) // TRUE: count a closed fold as one line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1612 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1613 long done = 0; // total # of physical lines done
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1614 int wrow;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1615 int moved = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1616 int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1617 int width1 = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1618 int width2 = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1619
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1620 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1621 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1622 width1 = curwin->w_width - curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1623 width2 = width1 + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1624 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1625
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1626 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1627 linenr_T first;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1628
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1629 // Make sure w_topline is at the first of a sequence of folded lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1630 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1631 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1632 validate_cursor(); // w_wrow needs to be valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1633 for (int todo = line_count; todo > 0; --todo)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1634 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1635 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1636 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1637 && curwin->w_topfill < curwin->w_height - 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1638 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1639 ++curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1640 ++done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1641 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1642 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1643 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1644 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1645 // break when at the very top
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1646 if (curwin->w_topline == 1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1647 && (!do_sms \|\| curwin->w_skipcol < width1))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1648 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1649 if (do_sms && curwin->w_skipcol >= width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1650 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1651 // scroll a screen line down
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1652 if (curwin->w_skipcol >= width1 + width2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1653 curwin->w_skipcol -= width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1654 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1655 curwin->w_skipcol -= width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1656 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1657 ++done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1658 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1659 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1660 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1661 // scroll a text line down
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1662 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1663 curwin->w_skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1664 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1665 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1666 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1667 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1668 // A sequence of folded lines only counts for one logical line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1669 if (hasFolding(curwin->w_topline, &first, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1670 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1671 ++done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1672 if (!byfold)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1673 todo -= curwin->w_topline - first - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1674 curwin->w_botline -= curwin->w_topline - first;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1675 curwin->w_topline = first;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1676 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1677 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1678 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1679 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1680 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1681 int size = win_linetabsize(curwin, curwin->w_topline,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1682 ml_get(curwin->w_topline), (colnr_T)MAXCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1683 if (size > width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1684 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1685 curwin->w_skipcol = width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1686 size -= width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1687 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1688 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1689 while (size > width2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1690 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1691 curwin->w_skipcol += width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1692 size -= width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1693 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1694 ++done;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1695 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1696 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1697 done += PLINES_NOFILL(curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1698 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1699 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1700 --curwin->w_botline; // approximate w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1701 invalidate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1702 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1703 curwin->w_wrow += done; // keep w_wrow updated
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1704 curwin->w_cline_row += done; // keep w_cline_row updated
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1705
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1706 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1707 if (curwin->w_cursor.lnum == curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1708 curwin->w_cline_row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1709 check_topfill(curwin, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1710 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1711
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1712 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1713 * Compute the row number of the last row of the cursor line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1714 * and move the cursor onto the displayed part of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1715 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1716 wrow = curwin->w_wrow;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1717 if (curwin->w_p_wrap && curwin->w_width != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1718 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1719 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1720 validate_cheight();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1721 wrow += curwin->w_cline_height - 1 -
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1722 curwin->w_virtcol / curwin->w_width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1723 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1724 while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1725 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1726 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1727 if (hasFolding(curwin->w_cursor.lnum, &first, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1728 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1729 --wrow;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1730 if (first == 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1731 curwin->w_cursor.lnum = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1732 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1733 curwin->w_cursor.lnum = first - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1734 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1735 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1736 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1737 wrow -= plines(curwin->w_cursor.lnum--);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1738 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1739 ~(VALID_WROW\|VALID_WCOL\|VALID_CHEIGHT\|VALID_CROW\|VALID_VIRTCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1740 moved = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1741 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1742 if (moved)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1743 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1744 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1745 // Move cursor to first line of closed fold.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1746 foldAdjustCursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1747 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1748 coladvance(curwin->w_curswant);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1749 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1750
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1751 if (curwin->w_cursor.lnum == curwin->w_topline && do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1752 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1753 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1754 int scrolloff_cols = so == 0 ? 0 : width1 + (so - 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1755
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1756 // make sure the cursor is in the visible text
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1757 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1758 int col = curwin->w_virtcol - curwin->w_skipcol + scrolloff_cols;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1759 int row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1760 if (col >= width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1761 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1762 col -= width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1763 ++row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1764 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1765 if (col > width2 && width2 > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1766 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1767 row += col / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1768 col = col % width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1769 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1770 if (row >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1771 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1772 curwin->w_curswant = curwin->w_virtcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1773 - (row - curwin->w_height + 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1774 coladvance(curwin->w_curswant);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1775 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1776 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1777 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1778
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1779 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1780 * Scroll the current window up by "line_count" logical lines. "CTRL-E"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1781 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1782 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1783 scrollup(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1784 long line_count,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1785 int byfold UNUSED) // TRUE: count a closed fold as one line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1786 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1787 int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1788
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1789 if (do_sms
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1790 # ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1791 \|\| (byfold && hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1792 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1793 # ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1794 \|\| (curwin->w_p_diff && !curwin->w_p_wrap)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1795 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1796 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1797 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1798 int width1 = curwin->w_width - curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1799 int width2 = width1 + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1800 int size = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1801 colnr_T prev_skipcol = curwin->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1802
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1803 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1804 size = linetabsize(curwin, curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1805
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1806 // diff mode: first consume "topfill"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1807 // 'smoothscroll': increase "w_skipcol" until it goes over the end of
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1808 // the line, then advance to the next line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1809 // folding: count each sequence of folded lines as one logical line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1810 for (int todo = line_count; todo > 0; --todo)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1811 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1812 # ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1813 if (curwin->w_topfill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1814 --curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1815 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1816 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1817 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1818 linenr_T lnum = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1819
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1820 # ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1821 if (byfold)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1822 // for a closed fold: go to the last line in the fold
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1823 (void)hasFolding(lnum, NULL, &lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1824 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1825 if (lnum == curwin->w_topline && do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1826 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1827 // 'smoothscroll': increase "w_skipcol" until it goes over
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1828 // the end of the line, then advance to the next line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1829 int add = curwin->w_skipcol > 0 ? width2 : width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1830 curwin->w_skipcol += add;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1831 if (curwin->w_skipcol >= size)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1832 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1833 if (lnum == curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1834 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1835 // at the last screen line, can't scroll further
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1836 curwin->w_skipcol -= add;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1837 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1838 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1839 ++lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1840 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1841 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1842 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1843 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1844 if (lnum >= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1845 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1846 ++lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1847 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1848
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1849 if (lnum > curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1850 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1851 // approximate w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1852 curwin->w_botline += lnum - curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1853 curwin->w_topline = lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1854 # ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1855 curwin->w_topfill = diff_check_fill(curwin, lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1856 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1857 curwin->w_skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1858 if (todo > 1 && do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1859 size = linetabsize(curwin, curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1860 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1861 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1862 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1863
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1864 if (prev_skipcol > 0 \|\| curwin->w_skipcol > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1865 // need to redraw more, because wl_size of the (new) topline may
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1866 // now be invalid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1867 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1868 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1869 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1870 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1871 curwin->w_topline += line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1872 curwin->w_botline += line_count; // approximate w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1873 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1874
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1875 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1876 curwin->w_topline = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1877 if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1878 curwin->w_botline = curbuf->b_ml.ml_line_count + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1879
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1880 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1881 check_topfill(curwin, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1882 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1883
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1884 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1885 if (hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1886 // Make sure w_topline is at the first of a sequence of folded lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1887 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1888 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1889
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1890 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1891 if (curwin->w_cursor.lnum < curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1892 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1893 curwin->w_cursor.lnum = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1894 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1895 ~(VALID_WROW\|VALID_WCOL\|VALID_CHEIGHT\|VALID_CROW\|VALID_VIRTCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1896 coladvance(curwin->w_curswant);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1897 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1898 if (curwin->w_cursor.lnum == curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1899 && do_sms && curwin->w_skipcol > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1900 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1901 int col_off = curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1902 int col_off2 = curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1903
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1904 int width1 = curwin->w_width - col_off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1905 int width2 = width1 + col_off2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1906 int extra2 = col_off - col_off2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1907 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1908 int scrolloff_cols = so == 0 ? 0 : width1 + (so - 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1909 int space_cols = (curwin->w_height - 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1910
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1911 // If we have non-zero scrolloff, just ignore the marker as we are
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1912 // going past it anyway.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1913 int overlap = scrolloff_cols != 0 ? 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1914 : sms_marker_overlap(curwin, extra2);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1915
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1916 // Make sure the cursor is in a visible part of the line, taking
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1917 // 'scrolloff' into account, but using screen lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1918 // If there are not enough screen lines put the cursor in the middle.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1919 if (scrolloff_cols > space_cols / 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1920 scrolloff_cols = space_cols / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1921 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1922 if (curwin->w_virtcol < curwin->w_skipcol + overlap + scrolloff_cols)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1923 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1924 colnr_T col = curwin->w_virtcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1925
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1926 if (col < width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1927 col += width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1928 while (col < curwin->w_skipcol + overlap + scrolloff_cols)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1929 col += width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1930 curwin->w_curswant = col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1931 coladvance(curwin->w_curswant);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1932
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1933 // validate_virtcol() marked various things as valid, but after
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1934 // moving the cursor they need to be recomputed
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1935 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1936 ~(VALID_WROW\|VALID_WCOL\|VALID_CHEIGHT\|VALID_CROW\|VALID_VIRTCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1937 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1938 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1939 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1940
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1941 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1942 * Called after changing the cursor column: make sure that curwin->w_skipcol is
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1943 * valid for 'smoothscroll'.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1944 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1945 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1946 adjust_skipcol(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1947 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1948 if (!curwin->w_p_wrap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1949 \|\| !curwin->w_p_sms
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1950 \|\| curwin->w_cursor.lnum != curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1951 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1952
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1953 int width1 = curwin->w_width - curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1954 if (width1 <= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1955 return; // no text will be displayed
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1956
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1957 int width2 = width1 + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1958 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1959 int scrolloff_cols = so == 0 ? 0 : width1 + (so - 1) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1960 int scrolled = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1961
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1962 validate_cheight();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1963 if (curwin->w_cline_height == curwin->w_height
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1964 // w_cline_height may be capped at w_height, check there aren't
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1965 // actually more lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1966 && plines_win(curwin, curwin->w_cursor.lnum, FALSE)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1967 <= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1968 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1969 // the line just fits in the window, don't scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1970 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1971 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1972 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1973
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1974 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1975 int overlap = sms_marker_overlap(curwin,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1976 curwin_col_off() - curwin_col_off2());
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1977 while (curwin->w_skipcol > 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1978 && curwin->w_virtcol < curwin->w_skipcol + overlap + scrolloff_cols)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1979 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1980 // scroll a screen line down
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1981 if (curwin->w_skipcol >= width1 + width2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1982 curwin->w_skipcol -= width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1983 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1984 curwin->w_skipcol -= width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1985 scrolled = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1986 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1987 if (scrolled)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1988 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1989 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1990 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1991 return; // don't scroll in the other direction now
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1992 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1993
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1994 int col = curwin->w_virtcol - curwin->w_skipcol + scrolloff_cols;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1995 int row = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1996 if (col >= width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1997 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1998 col -= width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1999 ++row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2000 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2001 if (col > width2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2002 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2003 row += col / width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2004 col = col % width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2005 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2006 if (row >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2007 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2008 if (curwin->w_skipcol == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2009 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2010 curwin->w_skipcol += width1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2011 --row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2012 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2013 if (row >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2014 curwin->w_skipcol += (row - curwin->w_height) * width2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2015 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2016 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2017 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2018
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2019 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2020 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2021 * Don't end up with too many filler lines in the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2022 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2023 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2024 check_topfill(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2025 win_T *wp,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2026 int down) // when TRUE scroll down when not enough space
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2027 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2028 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2029
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2030 if (wp->w_topfill <= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2031 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2032
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2033 n = plines_win_nofill(wp, wp->w_topline, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2034 if (wp->w_topfill + n > wp->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2035 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2036 if (down && wp->w_topline > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2037 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2038 --wp->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2039 wp->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2040 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2041 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2042 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2043 wp->w_topfill = wp->w_height - n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2044 if (wp->w_topfill < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2045 wp->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2046 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2047 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2048 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2049
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2050 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2051 * Use as many filler lines as possible for w_topline. Make sure w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2052 * is still visible.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2053 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2054 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2055 max_topfill(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2056 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2057 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2058
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2059 n = plines_nofill(curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2060 if (n >= curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2061 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2062 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2063 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2064 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2065 if (curwin->w_topfill + n > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2066 curwin->w_topfill = curwin->w_height - n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2067 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2068 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2069 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2070
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2071 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2072 * Scroll the screen one line down, but don't do it if it would move the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2073 * cursor off the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2074 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2075 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2076 scrolldown_clamp(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2077 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2078 int end_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2079 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2080 int can_fill = (curwin->w_topfill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2081 < diff_check_fill(curwin, curwin->w_topline));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2082 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2083
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2084 if (curwin->w_topline <= 1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2085 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2086 && !can_fill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2087 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2088 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2089 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2090
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2091 validate_cursor(); // w_wrow needs to be valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2092
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2093 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2094 * Compute the row number of the last row of the cursor line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2095 * and make sure it doesn't go off the screen. Make sure the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2096 * doesn't go past 'scrolloff' lines from the screen end.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2097 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2098 end_row = curwin->w_wrow;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2099 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2100 if (can_fill)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2101 ++end_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2102 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2103 end_row += plines_nofill(curwin->w_topline - 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2104 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2105 end_row += plines(curwin->w_topline - 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2106 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2107 if (curwin->w_p_wrap && curwin->w_width != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2108 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2109 validate_cheight();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2110 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2111 end_row += curwin->w_cline_height - 1 -
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2112 curwin->w_virtcol / curwin->w_width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2113 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2114 if (end_row < curwin->w_height - get_scrolloff_value())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2115 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2116 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2117 if (can_fill)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2118 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2119 ++curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2120 check_topfill(curwin, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2121 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2122 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2123 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2124 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2125 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2126 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2127 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2128 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2129 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2130 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2131 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2132 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2133 --curwin->w_botline; // approximate w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2134 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2135 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2136 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2137
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2138 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2139 * Scroll the screen one line up, but don't do it if it would move the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2140 * off the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2141 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2142 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2143 scrollup_clamp(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2144 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2145 int start_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2146
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2147 if (curwin->w_topline == curbuf->b_ml.ml_line_count
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2148 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2149 && curwin->w_topfill == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2150 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2151 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2152 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2153
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2154 validate_cursor(); // w_wrow needs to be valid
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2155
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2156 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2157 * Compute the row number of the first row of the cursor line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2158 * and make sure it doesn't go off the screen. Make sure the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2159 * doesn't go before 'scrolloff' lines from the screen start.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2160 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2161 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2162 start_row = curwin->w_wrow - plines_nofill(curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2163 - curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2164 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2165 start_row = curwin->w_wrow - plines(curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2166 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2167 if (curwin->w_p_wrap && curwin->w_width != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2168 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2169 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2170 start_row -= curwin->w_virtcol / curwin->w_width;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2171 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2172 if (start_row >= get_scrolloff_value())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2173 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2174 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2175 if (curwin->w_topfill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2176 --curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2177 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2178 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2179 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2180 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2181 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2182 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2183 ++curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2184 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2185 ++curwin->w_botline; // approximate w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2186 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2187 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2188 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2189
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2190 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2191 * Add one line above "lp->lnum". This can be a filler line, a closed fold or
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2192 * a (wrapped) text line. Uses and sets "lp->fill".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2193 * Returns the height of the added line in "lp->height".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2194 * Lines above the first one are incredibly high: MAXCOL.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2195 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2196 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2197 topline_back_winheight(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2198 lineoff_T *lp,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2199 int winheight) // when TRUE limit to window height
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2200 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2201 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2202 if (lp->fill < diff_check_fill(curwin, lp->lnum))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2203 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2204 // Add a filler line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2205 ++lp->fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2206 lp->height = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2207 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2208 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2209 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2210 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2211 --lp->lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2212 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2213 lp->fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2214 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2215 if (lp->lnum < 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2216 lp->height = MAXCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2217 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2218 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2219 if (hasFolding(lp->lnum, &lp->lnum, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2220 // Add a closed fold
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2221 lp->height = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2222 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2223 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2224 lp->height = PLINES_WIN_NOFILL(curwin, lp->lnum, winheight);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2225 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2226 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2227
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2228 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2229 topline_back(lineoff_T *lp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2230 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2231 topline_back_winheight(lp, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2232 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2233
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2234
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2235 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2236 * Add one line below "lp->lnum". This can be a filler line, a closed fold or
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2237 * a (wrapped) text line. Uses and sets "lp->fill".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2238 * Returns the height of the added line in "lp->height".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2239 * Lines below the last one are incredibly high.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2240 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2241 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2242 botline_forw(lineoff_T *lp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2243 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2244 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2245 if (lp->fill < diff_check_fill(curwin, lp->lnum + 1))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2246 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2247 // Add a filler line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2248 ++lp->fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2249 lp->height = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2250 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2251 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2252 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2253 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2254 ++lp->lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2255 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2256 lp->fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2257 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2258 if (lp->lnum > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2259 lp->height = MAXCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2260 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2261 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2262 if (hasFolding(lp->lnum, NULL, &lp->lnum))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2263 // Add a closed fold
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2264 lp->height = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2265 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2266 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2267 lp->height = PLINES_NOFILL(lp->lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2268 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2269 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2270
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2271 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2272 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2273 * Switch from including filler lines below lp->lnum to including filler
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2274 * lines above loff.lnum + 1. This keeps pointing to the same line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2275 * When there are no filler lines nothing changes.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2276 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2277 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2278 botline_topline(lineoff_T *lp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2279 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2280 if (lp->fill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2281 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2282 ++lp->lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2283 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2284 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2285 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2286
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2287 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2288 * Switch from including filler lines above lp->lnum to including filler
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2289 * lines below loff.lnum - 1. This keeps pointing to the same line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2290 * When there are no filler lines nothing changes.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2291 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2292 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2293 topline_botline(lineoff_T *lp)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2294 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2295 if (lp->fill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2296 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2297 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2298 --lp->lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2299 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2300 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2301 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2302
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2303 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2304 * Recompute topline to put the cursor at the top of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2305 * Scroll at least "min_scroll" lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2306 * If "always" is TRUE, always set topline (for "zt").
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2307 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2308 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2309 scroll_cursor_top(int min_scroll, int always)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2310 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2311 int scrolled = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2312 int extra = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2313 int used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2314 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2315 linenr_T top; // just above displayed lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2316 linenr_T bot; // just below displayed lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2317 linenr_T old_topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2318 int old_skipcol = curwin->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2319 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2320 linenr_T old_topfill = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2321 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2322 linenr_T new_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2323 int off = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2324
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2325 if (mouse_dragging > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2326 off = mouse_dragging - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2327
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2328 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2329 * Decrease topline until:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2330 * - it has become 1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2331 * - (part of) the cursor line is moved off the screen or
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2332 * - moved at least 'scrolljump' lines and
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2333 * - at least 'scrolloff' lines above and below the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2334 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2335 validate_cheight();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2336 used = curwin->w_cline_height; // includes filler lines above
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2337 if (curwin->w_cursor.lnum < curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2338 scrolled = used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2339
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2340 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2341 if (hasFolding(curwin->w_cursor.lnum, &top, &bot))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2342 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2343 --top;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2344 ++bot;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2345 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2346 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2347 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2348 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2349 top = curwin->w_cursor.lnum - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2350 bot = curwin->w_cursor.lnum + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2351 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2352 new_topline = top + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2353
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2354 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2355 // "used" already contains the number of filler lines above, don't add it
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2356 // again.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2357 // Hide filler lines above cursor line by adding them to "extra".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2358 extra += diff_check_fill(curwin, curwin->w_cursor.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2359 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2360
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2361 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2362 * Check if the lines from "top" to "bot" fit in the window. If they do,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2363 * set new_topline and advance "top" and "bot" to include more lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2364 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2365 while (top > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2366 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2367 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2368 if (hasFolding(top, &top, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2369 // count one logical line for a sequence of folded lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2370 i = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2371 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2372 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2373 i = PLINES_NOFILL(top);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2374 if (top < curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2375 scrolled += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2376
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2377 // If scrolling is needed, scroll at least 'sj' lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2378 if ((new_topline >= curwin->w_topline \|\| scrolled > min_scroll)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2379 && extra >= off)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2380 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2381
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2382 used += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2383 if (extra + i <= off && bot < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2384 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2385 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2386 if (hasFolding(bot, NULL, &bot))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2387 // count one logical line for a sequence of folded lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2388 ++used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2389 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2390 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2391 used += plines(bot);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2392 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2393 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2394 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2395
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2396 extra += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2397 new_topline = top;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2398 --top;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2399 ++bot;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2400 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2401
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2402 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2403 * If we don't have enough space, put cursor in the middle.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2404 * This makes sure we get the same position when using "k" and "j"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2405 * in a small window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2406 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2407 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2408 scroll_cursor_halfway(FALSE, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2409 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2410 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2411 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2412 * If "always" is FALSE, only adjust topline to a lower value, higher
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2413 * value may happen with wrapping lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2414 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2415 if (new_topline < curwin->w_topline \|\| always)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2416 curwin->w_topline = new_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2417 if (curwin->w_topline > curwin->w_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2418 curwin->w_topline = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2419 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2420 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2421 if (curwin->w_topfill > 0 && extra > off)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2422 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2423 curwin->w_topfill -= extra - off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2424 if (curwin->w_topfill < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2425 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2426 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2427 check_topfill(curwin, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2428 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2429 if (curwin->w_topline == curwin->w_cursor.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2430 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2431 validate_virtcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2432 if (curwin->w_skipcol >= curwin->w_virtcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2433 // TODO: if the line doesn't fit may optimize w_skipcol instead
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2434 // of making it zero
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2435 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2436 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2437 if (curwin->w_topline != old_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2438 \|\| curwin->w_skipcol != old_skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2439 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2440 \|\| curwin->w_topfill != old_topfill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2441 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2442 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2443 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2444 ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2445 curwin->w_valid \|= VALID_TOPLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2446 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2447 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2448
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2449 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2450 * Set w_empty_rows and w_filler_rows for window "wp", having used up "used"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2451 * screen lines for text lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2452 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2453 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2454 set_empty_rows(win_T *wp, int used)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2455 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2456 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2457 wp->w_filler_rows = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2458 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2459 if (used == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2460 wp->w_empty_rows = 0; // single line that doesn't fit
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2461 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2462 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2463 wp->w_empty_rows = wp->w_height - used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2464 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2465 if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2466 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2467 wp->w_filler_rows = diff_check_fill(wp, wp->w_botline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2468 if (wp->w_empty_rows > wp->w_filler_rows)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2469 wp->w_empty_rows -= wp->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2470 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2471 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2472 wp->w_filler_rows = wp->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2473 wp->w_empty_rows = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2474 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2475 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2476 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2477 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2478 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2479
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2480 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2481 * Recompute topline to put the cursor at the bottom of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2482 * When scrolling scroll at least "min_scroll" lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2483 * If "set_topbot" is TRUE, set topline and botline first (for "zb").
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2484 * This is messy stuff!!!
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2485 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2486 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2487 scroll_cursor_bot(int min_scroll, int set_topbot)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2488 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2489 int used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2490 int scrolled = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2491 int extra = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2492 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2493 linenr_T line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2494 linenr_T old_topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2495 int old_skipcol = curwin->w_skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2496 lineoff_T loff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2497 lineoff_T boff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2498 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2499 int old_topfill = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2500 int fill_below_window;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2501 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2502 linenr_T old_botline = curwin->w_botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2503 linenr_T old_valid = curwin->w_valid;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2504 int old_empty_rows = curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2505 linenr_T cln; // Cursor Line Number
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2506 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2507 int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2508
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2509 cln = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2510 if (set_topbot)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2511 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2512 int set_skipcol = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2513
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2514 used = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2515 curwin->w_botline = cln + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2516 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2517 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2518 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2519 for (curwin->w_topline = curwin->w_botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2520 curwin->w_topline > 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2521 curwin->w_topline = loff.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2522 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2523 loff.lnum = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2524 topline_back_winheight(&loff, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2525 if (loff.height == MAXCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2526 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2527 if (used + loff.height > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2528 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2529 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2530 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2531 // 'smoothscroll' and 'wrap' are set. The above line is
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2532 // too long to show in its entirety, so we show just a part
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2533 // of it.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2534 if (used < curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2535 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2536 int plines_offset = used + loff.height
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2537 - curwin->w_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2538 used = curwin->w_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2539 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2540 curwin->w_topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2541 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2542 curwin->w_topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2543 curwin->w_skipcol = skipcol_from_plines(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2544 curwin, plines_offset);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2545 set_skipcol = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2546 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2547 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2548 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2549 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2550 used += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2551 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2552 curwin->w_topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2553 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2554 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2555 set_empty_rows(curwin, used);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2556 curwin->w_valid \|= VALID_BOTLINE\|VALID_BOTLINE_AP;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2557 if (curwin->w_topline != old_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2558 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2559 \|\| curwin->w_topfill != old_topfill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2560 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2561 \|\| set_skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2562 \|\| curwin->w_skipcol != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2563 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2564 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2565 if (set_skipcol)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2566 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2567 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2568 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2569 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2570 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2571 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2572 validate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2573
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2574 // The lines of the cursor line itself are always used.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2575 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2576 used = plines_nofill(cln);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2577 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2578 validate_cheight();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2579 used = curwin->w_cline_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2580 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2581
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2582 // If the cursor is on or below botline, we will at least scroll by the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2583 // height of the cursor line, which is "used". Correct for empty lines,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2584 // which are really part of botline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2585 if (cln >= curwin->w_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2586 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2587 scrolled = used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2588 if (cln == curwin->w_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2589 scrolled -= curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2590 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2591 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2592 // 'smoothscroll' and 'wrap' are set.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2593 // Calculate how many screen lines the current top line of window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2594 // occupies. If it is occupying more than the entire window, we
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2595 // need to scroll the additional clipped lines to scroll past the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2596 // top line before we can move on to the other lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2597 int top_plines =
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2598 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2599 plines_win_nofill
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2600 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2601 plines_win
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2602 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2603 (curwin, curwin->w_topline, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2604 int skip_lines = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2605 int width1 = curwin->w_width - curwin_col_off();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2606 if (width1 > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2607 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2608 int width2 = width1 + curwin_col_off2();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2609 // similar formula is used in curs_columns()
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2610 if (curwin->w_skipcol > width1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2611 skip_lines += (curwin->w_skipcol - width1) / width2 + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2612 else if (curwin->w_skipcol > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2613 skip_lines = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2614
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2615 top_plines -= skip_lines;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2616 if (top_plines > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2617 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2618 scrolled += (top_plines - curwin->w_height);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2619 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2620 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2621 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2622 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2623
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2624 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2625 * Stop counting lines to scroll when
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2626 * - hitting start of the file
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2627 * - scrolled nothing or at least 'sj' lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2628 * - at least 'scrolloff' lines below the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2629 * - lines between botline and cursor have been counted
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2630 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2631 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2632 if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2633 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2634 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2635 loff.lnum = cln;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2636 boff.lnum = cln;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2637 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2638 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2639 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2640 boff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2641 fill_below_window = diff_check_fill(curwin, curwin->w_botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2642 - curwin->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2643 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2644
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2645 while (loff.lnum > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2646 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2647 // Stop when scrolled nothing or at least "min_scroll", found "extra"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2648 // context for 'scrolloff' and counted all lines below the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2649 if ((((scrolled <= 0 \|\| scrolled >= min_scroll)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2650 && extra >= (mouse_dragging > 0 ? mouse_dragging - 1 : so))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2651 \|\| boff.lnum + 1 > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2652 && loff.lnum <= curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2653 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2654 && (loff.lnum < curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2655 \|\| loff.fill >= fill_below_window)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2656 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2657 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2658 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2659
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2660 // Add one line above
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2661 topline_back(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2662 if (loff.height == MAXCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2663 used = MAXCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2664 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2665 used += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2666 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2667 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2668 if (loff.lnum >= curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2669 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2670 && (loff.lnum > curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2671 \|\| loff.fill <= fill_below_window)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2672 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2673 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2674 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2675 // Count screen lines that are below the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2676 scrolled += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2677 if (loff.lnum == curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2678 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2679 && loff.fill == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2680 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2681 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2682 scrolled -= curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2683 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2684
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2685 if (boff.lnum < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2686 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2687 // Add one line below
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2688 botline_forw(&boff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2689 used += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2690 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2691 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2692 if (extra < ( mouse_dragging > 0 ? mouse_dragging - 1 : so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2693 \|\| scrolled < min_scroll)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2694 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2695 extra += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2696 if (boff.lnum >= curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2697 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2698 \|\| (boff.lnum + 1 == curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2699 && boff.fill > curwin->w_filler_rows)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2700 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2701 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2702 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2703 // Count screen lines that are below the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2704 scrolled += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2705 if (boff.lnum == curwin->w_botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2706 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2707 && boff.fill == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2708 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2709 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2710 scrolled -= curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2711 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2712 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2713 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2714 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2715
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2716 // curwin->w_empty_rows is larger, no need to scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2717 if (scrolled <= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2718 line_count = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2719 // more than a screenfull, don't scroll but redraw
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2720 else if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2721 line_count = used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2722 // scroll minimal number of lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2723 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2724 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2725 line_count = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2726 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2727 boff.fill = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2728 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2729 boff.lnum = curwin->w_topline - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2730 for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2731 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2732 botline_forw(&boff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2733 i += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2734 ++line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2735 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2736 if (i < scrolled) // below curwin->w_botline, don't scroll
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2737 line_count = 9999;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2738 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2739
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2740 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2741 * Scroll up if the cursor is off the bottom of the screen a bit.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2742 * Otherwise put it at 1/2 of the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2743 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2744 if (line_count >= curwin->w_height && line_count > min_scroll)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2745 scroll_cursor_halfway(FALSE, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2746 else if (line_count > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2747 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2748 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2749 scrollup(scrolled, TRUE); // TODO
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2750 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2751 scrollup(line_count, TRUE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2752 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2753
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2754 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2755 * If topline didn't change we need to restore w_botline and w_empty_rows
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2756 * (we changed them).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2757 * If topline did change, update_screen() will set botline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2758 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2759 if (curwin->w_topline == old_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2760 && curwin->w_skipcol == old_skipcol
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2761 && set_topbot)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2762 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2763 curwin->w_botline = old_botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2764 curwin->w_empty_rows = old_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2765 curwin->w_valid = old_valid;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2766 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2767 curwin->w_valid \|= VALID_TOPLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2768 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2769
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2770 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2771 * Recompute topline to put the cursor halfway the window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2772 * If "atend" is TRUE, also put it halfway at the end of the file.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2773 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2774 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2775 scroll_cursor_halfway(int atend, int prefer_above)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2776 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2777 int above = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2778 linenr_T topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2779 colnr_T skipcol = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2780 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2781 int topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2782 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2783 int below = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2784 int used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2785 lineoff_T loff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2786 lineoff_T boff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2787 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2788 linenr_T old_topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2789 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2790
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2791 #ifdef FEAT_PROP_POPUP
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2792 // if the width changed this needs to be updated first
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2793 may_update_popup_position();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2794 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2795 loff.lnum = boff.lnum = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2796 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2797 (void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2798 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2799 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2800 used = plines_nofill(loff.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2801 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2802 boff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2803 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2804 used = plines(loff.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2805 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2806 topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2807
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2808 int want_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2809 int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2810 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2811 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2812 // 'smoothscroll' and 'wrap' are set
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2813 if (atend)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2814 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2815 want_height = (curwin->w_height - used) / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2816 used = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2817 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2818 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2819 want_height = curwin->w_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2820 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2821
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2822 while (topline > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2823 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2824 // If using smoothscroll, we can precisely scroll to the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2825 // exact point where the cursor is halfway down the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2826 if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2827 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2828 topline_back_winheight(&loff, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2829 if (loff.height == MAXCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2830 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2831 used += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2832 if (!atend && boff.lnum < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2833 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2834 botline_forw(&boff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2835 used += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2836 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2837 if (used > want_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2838 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2839 if (used - loff.height < want_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2840 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2841 topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2842 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2843 topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2844 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2845 skipcol = skipcol_from_plines(curwin, used - want_height);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2846 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2847 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2848 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2849 topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2850 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2851 topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2852 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2853 continue;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2854 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2855
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2856 // If not using smoothscroll, we have to iteratively find how many
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2857 // lines to scroll down to roughly fit the cursor.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2858 // This may not be right in the middle if the lines'
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2859 // physical height > 1 (e.g. 'wrap' is on).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2860
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2861 // Depending on "prefer_above" we add a line above or below first.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2862 // Loop twice to avoid duplicating code.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2863 int done = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2864 for (int round = 1; round <= 2; ++round)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2865 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2866 if (prefer_above ? (round == 2 && below < above)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2867 : (round == 1 && below <= above))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2868 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2869 // add a line below the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2870 if (boff.lnum < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2871 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2872 botline_forw(&boff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2873 used += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2874 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2875 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2876 done = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2877 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2878 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2879 below += boff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2880 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2881 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2882 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2883 ++below; // count a "~" line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2884 if (atend)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2885 ++used;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2886 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2887 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2888
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2889 if (prefer_above ? (round == 1 && below >= above)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2890 : (round == 1 && below > above))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2891 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2892 // add a line above the cursor
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2893 topline_back(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2894 if (loff.height == MAXCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2895 used = MAXCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2896 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2897 used += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2898 if (used > curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2899 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2900 done = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2901 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2902 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2903 above += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2904 topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2905 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2906 topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2907 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2908 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2909 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2910 if (done)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2911 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2912 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2913
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2914 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2915 if (!hasFolding(topline, &curwin->w_topline, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2916 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2917 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2918 if (curwin->w_topline != topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2919 \|\| skipcol != 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2920 \|\| curwin->w_skipcol != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2921 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2922 curwin->w_topline = topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2923 if (skipcol != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2924 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2925 curwin->w_skipcol = skipcol;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2926 redraw_later(UPD_NOT_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2927 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2928 else if (do_sms)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2929 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2930 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2931 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2932 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2933 curwin->w_topfill = topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2934 if (old_topline > curwin->w_topline + curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2935 curwin->w_botfill = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2936 check_topfill(curwin, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2937 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2938 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2939 curwin->w_valid \|= VALID_TOPLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2940 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2941
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2942 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2943 * Correct the cursor position so that it is in a part of the screen at least
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2944 * 'scrolloff' lines from the top and bottom, if possible.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2945 * If not possible, put it at the same position as scroll_cursor_halfway().
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2946 * When called topline must be valid!
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2947 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2948 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2949 cursor_correct(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2950 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2951 int above = 0; // screen lines above topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2952 linenr_T topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2953 int below = 0; // screen lines below botline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2954 linenr_T botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2955 int above_wanted, below_wanted;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2956 linenr_T cln; // Cursor Line Number
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2957 int max_off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2958 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2959
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2960 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2961 * How many lines we would like to have above/below the cursor depends on
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2962 * whether the first/last line of the file is on screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2963 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2964 above_wanted = so;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2965 below_wanted = so;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2966 if (mouse_dragging > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2967 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2968 above_wanted = mouse_dragging - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2969 below_wanted = mouse_dragging - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2970 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2971 if (curwin->w_topline == 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2972 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2973 above_wanted = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2974 max_off = curwin->w_height / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2975 if (below_wanted > max_off)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2976 below_wanted = max_off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2977 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2978 validate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2979 if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2980 && mouse_dragging == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2981 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2982 below_wanted = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2983 max_off = (curwin->w_height - 1) / 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2984 if (above_wanted > max_off)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2985 above_wanted = max_off;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2986 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2987
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2988 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2989 * If there are sufficient file-lines above and below the cursor, we can
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2990 * return now.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2991 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2992 cln = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2993 if (cln >= curwin->w_topline + above_wanted
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2994 && cln < curwin->w_botline - below_wanted
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2995 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2996 && !hasAnyFolding(curwin)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2997 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2998 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2999 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3000
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3001 if (curwin->w_p_sms && !curwin->w_p_wrap)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3002 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3003 // 'smoothscroll' is active
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3004 if (curwin->w_cline_height == curwin->w_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3005 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3006 // The cursor line just fits in the window, don't scroll.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3007 reset_skipcol();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3008 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3009 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3010 // TODO: If the cursor line doesn't fit in the window then only adjust
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3011 // w_skipcol.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3012 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3013
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3014 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3015 * Narrow down the area where the cursor can be put by taking lines from
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3016 * the top and the bottom until:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3017 * - the desired context lines are found
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3018 * - the lines from the top is past the lines from the bottom
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3019 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3020 topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3021 botline = curwin->w_botline - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3022 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3023 // count filler lines as context
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3024 above = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3025 below = curwin->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3026 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3027 while ((above < above_wanted \|\| below < below_wanted) && topline < botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3028 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3029 if (below < below_wanted && (below <= above \|\| above >= above_wanted))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3030 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3031 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3032 if (hasFolding(botline, &botline, NULL))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3033 ++below;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3034 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3035 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3036 below += plines(botline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3037 --botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3038 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3039 if (above < above_wanted && (above < below \|\| below >= below_wanted))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3040 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3041 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3042 if (hasFolding(topline, NULL, &topline))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3043 ++above;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3044 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3045 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3046 above += PLINES_NOFILL(topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3047 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3048 // Count filler lines below this line as context.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3049 if (topline < botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3050 above += diff_check_fill(curwin, topline + 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3051 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3052 ++topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3053 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3054 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3055 if (topline == botline \|\| botline == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3056 curwin->w_cursor.lnum = topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3057 else if (topline > botline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3058 curwin->w_cursor.lnum = botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3059 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3060 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3061 if (cln < topline && curwin->w_topline > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3062 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3063 curwin->w_cursor.lnum = topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3064 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3065 ~(VALID_WROW\|VALID_WCOL\|VALID_CHEIGHT\|VALID_CROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3066 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3067 if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3068 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3069 curwin->w_cursor.lnum = botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3070 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3071 ~(VALID_WROW\|VALID_WCOL\|VALID_CHEIGHT\|VALID_CROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3072 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3073 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3074 curwin->w_valid \|= VALID_TOPLINE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3075 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3076
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3077 static void get_scroll_overlap(lineoff_T *lp, int dir);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3078
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3079 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3080 * Move screen "count" pages up ("dir" is BACKWARD) or down ("dir" is FORWARD)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3081 * and update the screen.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3082 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3083 * Return FAIL for failure, OK otherwise.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3084 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3085 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3086 onepage(int dir, long count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3087 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3088 long n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3089 int retval = OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3090 lineoff_T loff;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3091 linenr_T old_topline = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3092 long so = get_scrolloff_value();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3093
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3094 if (curbuf->b_ml.ml_line_count == 1) // nothing to do
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3095 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3096 beep_flush();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3097 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3098 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3099
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3100 for ( ; count > 0; --count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3101 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3102 validate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3103 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3104 * It's an error to move a page up when the first line is already on
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3105 * the screen. It's an error to move a page down when the last line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3106 * is on the screen and the topline is 'scrolloff' lines from the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3107 * last line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3108 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3109 if (dir == FORWARD
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3110 ? ((curwin->w_topline >= curbuf->b_ml.ml_line_count - so)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3111 && curwin->w_botline > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3112 : (curwin->w_topline == 1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3113 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3114 && curwin->w_topfill ==
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3115 diff_check_fill(curwin, curwin->w_topline)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3116 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3117 ))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3118 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3119 beep_flush();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3120 retval = FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3121 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3122 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3123
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3124 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3125 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3126 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3127 if (dir == FORWARD)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3128 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3129 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3130 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3131 // Vi compatible scrolling
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3132 if (p_window <= 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3133 ++curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3134 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3135 curwin->w_topline += p_window - 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3136 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3137 curwin->w_topline = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3138 curwin->w_cursor.lnum = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3139 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3140 else if (curwin->w_botline > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3141 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3142 // at end of file
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3143 curwin->w_topline = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3144 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3145 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3146 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3147 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3148 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3149 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3150 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3151 // For the overlap, start with the line just below the window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3152 // and go upwards.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3153 loff.lnum = curwin->w_botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3154 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3155 loff.fill = diff_check_fill(curwin, loff.lnum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3156 - curwin->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3157 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3158 get_scroll_overlap(&loff, -1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3159 curwin->w_topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3160 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3161 curwin->w_topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3162 check_topfill(curwin, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3163 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3164 curwin->w_cursor.lnum = curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3165 curwin->w_valid &= ~(VALID_WCOL\|VALID_CHEIGHT\|VALID_WROW\|
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3166 VALID_CROW\|VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3167 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3168 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3169 else // dir == BACKWARDS
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3170 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3171 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3172 if (curwin->w_topline == 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3173 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3174 // Include max number of filler lines
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3175 max_topfill();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3176 continue;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3177 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3178 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3179 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3180 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3181 // Vi compatible scrolling (sort of)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3182 if (p_window <= 2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3183 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3184 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3185 curwin->w_topline -= p_window - 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3186 if (curwin->w_topline < 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3187 curwin->w_topline = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3188 curwin->w_cursor.lnum = curwin->w_topline + p_window - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3189 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3190 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3191 continue;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3192 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3193
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3194 // Find the line at the top of the window that is going to be the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3195 // line at the bottom of the window. Make sure this results in
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3196 // the same line as before doing CTRL-F.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3197 loff.lnum = curwin->w_topline - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3198 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3199 loff.fill = diff_check_fill(curwin, loff.lnum + 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3200 - curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3201 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3202 get_scroll_overlap(&loff, 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3203
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3204 if (loff.lnum >= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3205 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3206 loff.lnum = curbuf->b_ml.ml_line_count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3207 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3208 loff.fill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3209 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3210 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3211 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3212 botline_topline(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3213 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3214 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3215 curwin->w_cursor.lnum = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3216
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3217 // Find the line just above the new topline to get the right line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3218 // at the bottom of the window.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3219 n = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3220 while (n <= curwin->w_height && loff.lnum >= 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3221 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3222 topline_back(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3223 if (loff.height == MAXCOL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3224 n = MAXCOL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3225 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3226 n += loff.height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3227 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3228 if (loff.lnum < 1) // at begin of file
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3229 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3230 curwin->w_topline = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3231 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3232 max_topfill();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3233 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3234 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3235 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3236 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3237 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3238 // Go two lines forward again.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3239 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3240 topline_botline(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3241 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3242 botline_forw(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3243 botline_forw(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3244 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3245 botline_topline(&loff);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3246 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3247 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3248 // We're at the wrong end of a fold now.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3249 (void)hasFolding(loff.lnum, &loff.lnum, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3250 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3251
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3252 // Always scroll at least one line. Avoid getting stuck on
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3253 // very long lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3254 if (loff.lnum >= curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3255 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3256 && (loff.lnum > curwin->w_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3257 \|\| loff.fill >= curwin->w_topfill)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3258 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3259 )
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3260 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3261 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3262 // First try using the maximum number of filler lines. If
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3263 // that's not enough, backup one line.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3264 loff.fill = curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3265 if (curwin->w_topfill < diff_check_fill(curwin,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3266 curwin->w_topline))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3267 max_topfill();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3268 if (curwin->w_topfill == loff.fill)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3269 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3270 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3271 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3272 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3273 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3274 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3275 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3276 comp_botline(curwin);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3277 curwin->w_cursor.lnum = curwin->w_botline - 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3278 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3279 ~(VALID_WCOL\|VALID_CHEIGHT\|VALID_WROW\|VALID_CROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3280 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3281 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3282 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3283 curwin->w_topline = loff.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3284 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3285 curwin->w_topfill = loff.fill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3286 check_topfill(curwin, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3287 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3288 curwin->w_valid &= ~(VALID_WROW\|VALID_CROW\|VALID_BOTLINE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3289 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3290 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3291 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3292 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3293 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3294 foldAdjustCursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3295 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3296 cursor_correct();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3297 check_cursor_col();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3298 if (retval == OK)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3299 beginline(BL_SOL \| BL_FIX);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3300 curwin->w_valid &= ~(VALID_WCOL\|VALID_WROW\|VALID_VIRTCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3301
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3302 if (retval == OK && dir == FORWARD)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3303 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3304 // Avoid the screen jumping up and down when 'scrolloff' is non-zero.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3305 // But make sure we scroll at least one line (happens with mix of long
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3306 // wrapping lines and non-wrapping line).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3307 if (check_top_offset())
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3308 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3309 scroll_cursor_top(1, FALSE);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3310 if (curwin->w_topline <= old_topline
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3311 && old_topline < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3312 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3313 curwin->w_topline = old_topline + 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3314 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3315 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3316 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3317 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3318 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3319 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3320 else if (curwin->w_botline > curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3321 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3322 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3323 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3324
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3325 redraw_later(UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3326 return retval;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3327 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3328
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3329 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3330 * Decide how much overlap to use for page-up or page-down scrolling.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3331 * This is symmetric, so that doing both keeps the same lines displayed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3332 * Three lines are examined:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3333 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3334 * before CTRL-F after CTRL-F / before CTRL-B
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3335 * etc. l1
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3336 * l1 last but one line ------------
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3337 * l2 last text line l2 top text line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3338 * ------------- l3 second text line
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3339 * l3 etc.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3340 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3341 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3342 get_scroll_overlap(lineoff_T *lp, int dir)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3343 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3344 int h1, h2, h3, h4;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3345 int min_height = curwin->w_height - 2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3346 lineoff_T loff0, loff1, loff2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3347
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3348 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3349 if (lp->fill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3350 lp->height = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3351 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3352 lp->height = plines_nofill(lp->lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3353 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3354 lp->height = plines(lp->lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3355 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3356 h1 = lp->height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3357 if (h1 > min_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3358 return; // no overlap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3359
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3360 loff0 = *lp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3361 if (dir > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3362 botline_forw(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3363 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3364 topline_back(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3365 h2 = lp->height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3366 if (h2 == MAXCOL \|\| h2 + h1 > min_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3367 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3368 *lp = loff0; // no overlap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3369 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3370 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3371
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3372 loff1 = *lp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3373 if (dir > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3374 botline_forw(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3375 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3376 topline_back(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3377 h3 = lp->height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3378 if (h3 == MAXCOL \|\| h3 + h2 > min_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3379 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3380 *lp = loff0; // no overlap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3381 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3382 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3383
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3384 loff2 = *lp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3385 if (dir > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3386 botline_forw(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3387 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3388 topline_back(lp);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3389 h4 = lp->height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3390 if (h4 == MAXCOL \|\| h4 + h3 + h2 > min_height \|\| h3 + h2 + h1 > min_height)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3391 *lp = loff1; // 1 line overlap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3392 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3393 *lp = loff2; // 2 lines overlap
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3394 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3395
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3396 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3397 * Scroll 'scroll' lines up or down.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3398 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3399 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3400 halfpage(int flag, linenr_T Prenum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3401 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3402 long scrolled = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3403 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3404 int n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3405 int room;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3406
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3407 if (Prenum)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3408 curwin->w_p_scr = (Prenum > curwin->w_height) ?
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3409 curwin->w_height : Prenum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3410 n = (curwin->w_p_scr <= curwin->w_height) ?
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3411 curwin->w_p_scr : curwin->w_height;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3412
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3413 update_topline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3414 validate_botline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3415 room = curwin->w_empty_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3416 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3417 room += curwin->w_filler_rows;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3418 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3419 if (flag)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3420 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3421 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3422 * scroll the text up
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3423 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3424 while (n > 0 && curwin->w_botline <= curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3425 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3426 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3427 if (curwin->w_topfill > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3428 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3429 i = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3430 --n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3431 --curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3432 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3433 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3434 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3435 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3436 i = PLINES_NOFILL(curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3437 n -= i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3438 if (n < 0 && scrolled > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3439 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3440 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3441 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3442 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3443 ++curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3444 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3445 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3446 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3447
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3448 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3449 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3450 ++curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3451 curwin->w_valid &=
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3452 ~(VALID_VIRTCOL\|VALID_CHEIGHT\|VALID_WCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3453 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3454 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3455 curwin->w_valid &= ~(VALID_CROW\|VALID_WROW);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3456 scrolled += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3457
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3458 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3459 * Correct w_botline for changed w_topline.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3460 * Won't work when there are filler lines.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3461 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3462 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3463 if (curwin->w_p_diff)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3464 curwin->w_valid &= ~(VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3465 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3466 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3467 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3468 room += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3469 do
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3470 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3471 i = plines(curwin->w_botline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3472 if (i > room)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3473 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3474 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3475 (void)hasFolding(curwin->w_botline, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3476 &curwin->w_botline);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3477 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3478 ++curwin->w_botline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3479 room -= i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3480 } while (curwin->w_botline <= curbuf->b_ml.ml_line_count);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3481 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3482 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3483
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3484 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3485 * When hit bottom of the file: move cursor down.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3486 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3487 if (n > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3488 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3489 # ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3490 if (hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3491 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3492 while (--n >= 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3493 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3494 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3495 (void)hasFolding(curwin->w_cursor.lnum, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3496 &curwin->w_cursor.lnum);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3497 ++curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3498 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3499 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3500 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3501 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3502 curwin->w_cursor.lnum += n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3503 check_cursor_lnum();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3504 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3505 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3506 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3507 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3508 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3509 * scroll the text down
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3510 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3511 while (n > 0 && curwin->w_topline > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3512 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3513 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3514 if (curwin->w_topfill < diff_check_fill(curwin, curwin->w_topline))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3515 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3516 i = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3517 --n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3518 ++curwin->w_topfill;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3519 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3520 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3521 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3522 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3523 i = PLINES_NOFILL(curwin->w_topline - 1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3524 n -= i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3525 if (n < 0 && scrolled > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3526 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3527 --curwin->w_topline;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3528 #ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3529 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3530 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3531 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3532 curwin->w_topfill = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3533 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3534 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3535 curwin->w_valid &= ~(VALID_CROW\|VALID_WROW\|
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3536 VALID_BOTLINE\|VALID_BOTLINE_AP);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3537 scrolled += i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3538 if (curwin->w_cursor.lnum > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3539 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3540 --curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3541 curwin->w_valid &= ~(VALID_VIRTCOL\|VALID_CHEIGHT\|VALID_WCOL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3542 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3543 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3544
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3545 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3546 * When hit top of the file: move cursor up.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3547 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3548 if (n > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3549 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3550 if (curwin->w_cursor.lnum <= (linenr_T)n)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3551 curwin->w_cursor.lnum = 1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3552 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3553 # ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3554 if (hasAnyFolding(curwin))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3555 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3556 while (--n >= 0 && curwin->w_cursor.lnum > 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3557 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3558 --curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3559 (void)hasFolding(curwin->w_cursor.lnum,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3560 &curwin->w_cursor.lnum, NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3561 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3562 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3563 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3564 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3565 curwin->w_cursor.lnum -= n;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3566 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3567 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3568 # ifdef FEAT_FOLDING
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3569 // Move cursor to first line of closed fold.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3570 foldAdjustCursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3571 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3572 #ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3573 check_topfill(curwin, !flag);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3574 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3575 cursor_correct();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3576 beginline(BL_SOL \| BL_FIX);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3577 redraw_later(UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3578 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3579
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3580 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3581 do_check_cursorbind(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3582 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3583 linenr_T line = curwin->w_cursor.lnum;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3584 colnr_T col = curwin->w_cursor.col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3585 colnr_T coladd = curwin->w_cursor.coladd;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3586 colnr_T curswant = curwin->w_curswant;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3587 int set_curswant = curwin->w_set_curswant;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3588 win_T *old_curwin = curwin;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3589 buf_T *old_curbuf = curbuf;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3590 int old_VIsual_select = VIsual_select;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3591 int old_VIsual_active = VIsual_active;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3592
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3593 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3594 * loop through the cursorbound windows
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3595 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3596 VIsual_select = VIsual_active = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3597 FOR_ALL_WINDOWS(curwin)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3598 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3599 curbuf = curwin->w_buffer;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3600 // skip original window and windows with 'noscrollbind'
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3601 if (curwin != old_curwin && curwin->w_p_crb)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3602 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3603 # ifdef FEAT_DIFF
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3604 if (curwin->w_p_diff)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3605 curwin->w_cursor.lnum =
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3606 diff_get_corresponding_line(old_curbuf, line);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3607 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3608 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3609 curwin->w_cursor.lnum = line;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3610 curwin->w_cursor.col = col;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3611 curwin->w_cursor.coladd = coladd;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3612 curwin->w_curswant = curswant;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3613 curwin->w_set_curswant = set_curswant;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3614
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3615 // Make sure the cursor is in a valid position. Temporarily set
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3616 // "restart_edit" to allow the cursor to be beyond the EOL.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3617 int restart_edit_save = restart_edit;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3618 restart_edit = 'a';
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3619 check_cursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3620
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3621 // Avoid a scroll here for the cursor position, 'scrollbind' is
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3622 // more important.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3623 if (!curwin->w_p_scb)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3624 validate_cursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3625
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3626 restart_edit = restart_edit_save;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3627 // Correct cursor for multi-byte character.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3628 if (has_mbyte)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3629 mb_adjust_cursor();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3630 redraw_later(UPD_VALID);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3631
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3632 // Only scroll when 'scrollbind' hasn't done this.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3633 if (!curwin->w_p_scb)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3634 update_topline();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3635 curwin->w_redr_status = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3636 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3637 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3638
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3639 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3640 * reset current-window
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3641 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3642 VIsual_select = old_VIsual_select;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3643 VIsual_active = old_VIsual_active;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3644 curwin = old_curwin;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3645 curbuf = old_curbuf;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3646 }

Mercurial > vim

annotate src/move.c @ 32942:f2143ef2e979 v9.0.1766