annotate src/move.c @ 560:8b84fe17e147 v7.0159

updated for version 7.0159
author vimboss
date Fri, 25 Nov 2005 19:58:47 +0000
parents 7052f11a3dc9
children 614e9af68eaa
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9 /*
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10 * move.c: Functions for moving the cursor and scrolling text.
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11 *
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12 * There are two ways to move the cursor:
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13 * 1. Move the cursor directly, the text is scrolled to keep the cursor in the
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14 * window.
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15 * 2. Scroll the text, the cursor is moved into the text visible in the
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16 * window.
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17 * The 'scrolloff' option makes this a bit complicated.
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18 */
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19
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20 #include "vim.h"
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21
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22 static void comp_botline __ARGS((win_T *wp));
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23 static int scrolljump_value __ARGS((void));
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24 static int check_top_offset __ARGS((void));
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25 static void curs_rows __ARGS((win_T *wp, int do_botline));
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26 static void validate_botline_win __ARGS((win_T *wp));
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27 static void validate_cheight __ARGS((void));
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28
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29 typedef struct
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30 {
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31 linenr_T lnum; /* line number */
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32 #ifdef FEAT_DIFF
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33 int fill; /* filler lines */
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34 #endif
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35 int height; /* height of added line */
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36 } lineoff_T;
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37
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38 static void topline_back __ARGS((lineoff_T *lp));
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39 static void botline_forw __ARGS((lineoff_T *lp));
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40 #ifdef FEAT_DIFF
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41 static void botline_topline __ARGS((lineoff_T *lp));
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42 static void topline_botline __ARGS((lineoff_T *lp));
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43 static void max_topfill __ARGS((void));
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44 #endif
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45
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46 /*
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47 * Compute wp->w_botline for the current wp->w_topline. Can be called after
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48 * wp->w_topline changed.
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49 */
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50 static void
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51 comp_botline(wp)
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52 win_T *wp;
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53 {
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54 int n;
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55 linenr_T lnum;
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56 int done;
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57 #ifdef FEAT_FOLDING
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58 linenr_T last;
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59 int folded;
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60 #endif
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61
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62 /*
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63 * If w_cline_row is valid, start there.
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64 * Otherwise have to start at w_topline.
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65 */
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66 check_cursor_moved(wp);
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67 if (wp->w_valid & VALID_CROW)
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68 {
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69 lnum = wp->w_cursor.lnum;
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70 done = wp->w_cline_row;
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71 }
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72 else
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73 {
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74 lnum = wp->w_topline;
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75 done = 0;
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76 }
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77
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78 for ( ; lnum <= wp->w_buffer->b_ml.ml_line_count; ++lnum)
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79 {
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80 #ifdef FEAT_FOLDING
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81 last = lnum;
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82 folded = FALSE;
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83 if (hasFoldingWin(wp, lnum, NULL, &last, TRUE, NULL))
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84 {
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85 n = 1;
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86 folded = TRUE;
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87 }
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88 else
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89 #endif
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90 #ifdef FEAT_DIFF
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91 if (lnum == wp->w_topline)
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92 n = plines_win_nofill(wp, lnum, TRUE) + wp->w_topfill;
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93 else
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94 #endif
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95 n = plines_win(wp, lnum, TRUE);
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96 if (
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97 #ifdef FEAT_FOLDING
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98 lnum <= wp->w_cursor.lnum && last >= wp->w_cursor.lnum
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99 #else
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100 lnum == wp->w_cursor.lnum
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101 #endif
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102 )
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103 {
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104 wp->w_cline_row = done;
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105 wp->w_cline_height = n;
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106 #ifdef FEAT_FOLDING
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107 wp->w_cline_folded = folded;
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108 #endif
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109 wp->w_valid |= (VALID_CROW|VALID_CHEIGHT);
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110 }
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111 if (done + n > wp->w_height)
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112 break;
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113 done += n;
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114 #ifdef FEAT_FOLDING
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115 lnum = last;
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116 #endif
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117 }
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118
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119 /* wp->w_botline is the line that is just below the window */
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120 wp->w_botline = lnum;
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121 wp->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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122
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123 set_empty_rows(wp, done);
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124 }
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125
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126 /*
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127 * Update curwin->w_topline and redraw if necessary.
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128 * Used to update the screen before printing a message.
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129 */
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130 void
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131 update_topline_redraw()
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132 {
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133 update_topline();
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134 if (must_redraw)
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135 update_screen(0);
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136 }
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137
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138 /*
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139 * Update curwin->w_topline to move the cursor onto the screen.
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140 */
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141 void
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142 update_topline()
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143 {
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144 long line_count;
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145 int halfheight;
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146 int n;
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147 linenr_T old_topline;
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148 #ifdef FEAT_DIFF
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149 int old_topfill;
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150 #endif
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151 #ifdef FEAT_FOLDING
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152 linenr_T lnum;
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153 #endif
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154 int check_topline = FALSE;
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155 int check_botline = FALSE;
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156 #ifdef FEAT_MOUSE
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157 int save_so = p_so;
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158 #endif
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159
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160 if (!screen_valid(TRUE))
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161 return;
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162
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163 check_cursor_moved(curwin);
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164 if (curwin->w_valid & VALID_TOPLINE)
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165 return;
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166
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167 #ifdef FEAT_MOUSE
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168 /* When dragging with the mouse, don't scroll that quickly */
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169 if (mouse_dragging)
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170 p_so = mouse_dragging - 1;
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171 #endif
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172
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173 old_topline = curwin->w_topline;
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174 #ifdef FEAT_DIFF
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175 old_topfill = curwin->w_topfill;
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176 #endif
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177
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178 /*
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179 * If the buffer is empty, always set topline to 1.
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180 */
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181 if (bufempty()) /* special case - file is empty */
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182 {
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183 if (curwin->w_topline != 1)
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184 redraw_later(NOT_VALID);
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185 curwin->w_topline = 1;
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186 #ifdef FEAT_DIFF
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187 curwin->w_topfill = 0;
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188 #endif
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189 curwin->w_botline = 2;
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190 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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191 #ifdef FEAT_SCROLLBIND
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192 curwin->w_scbind_pos = 1;
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193 #endif
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194 }
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195
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196 /*
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197 * If the cursor is above or near the top of the window, scroll the window
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198 * to show the line the cursor is in, with 'scrolloff' context.
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199 */
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200 else
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201 {
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202 if (curwin->w_topline > 1)
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203 {
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parents:
diff changeset
204 /* If the cursor is above topline, scrolling is always needed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
205 * If the cursor is far below topline and there is no folding,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
206 * scrolling down is never needed. */
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vimboss
parents:
diff changeset
207 if (curwin->w_cursor.lnum < curwin->w_topline)
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parents:
diff changeset
208 check_topline = TRUE;
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parents:
diff changeset
209 else if (check_top_offset())
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vimboss
parents:
diff changeset
210 check_topline = TRUE;
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vimboss
parents:
diff changeset
211 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
212 #ifdef FEAT_DIFF
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parents:
diff changeset
213 /* Check if there are more filler lines than allowed. */
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vimboss
parents:
diff changeset
214 if (!check_topline && curwin->w_topfill > diff_check_fill(curwin,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
215 curwin->w_topline))
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parents:
diff changeset
216 check_topline = TRUE;
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parents:
diff changeset
217 #endif
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vimboss
parents:
diff changeset
218
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vimboss
parents:
diff changeset
219 if (check_topline)
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vimboss
parents:
diff changeset
220 {
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vimboss
parents:
diff changeset
221 halfheight = curwin->w_height / 2 - 1;
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vimboss
parents:
diff changeset
222 if (halfheight < 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
223 halfheight = 2;
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vimboss
parents:
diff changeset
224
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vimboss
parents:
diff changeset
225 #ifdef FEAT_FOLDING
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parents:
diff changeset
226 if (hasAnyFolding(curwin))
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vimboss
parents:
diff changeset
227 {
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vimboss
parents:
diff changeset
228 /* Count the number of logical lines between the cursor and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
229 * topline + p_so (approximation of how much will be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
230 * scrolled). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
231 n = 0;
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vimboss
parents:
diff changeset
232 for (lnum = curwin->w_cursor.lnum;
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vimboss
parents:
diff changeset
233 lnum < curwin->w_topline + p_so; ++lnum)
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vimboss
parents:
diff changeset
234 {
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vimboss
parents:
diff changeset
235 ++n;
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parents:
diff changeset
236 /* stop at end of file or when we know we are far off */
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parents:
diff changeset
237 if (lnum >= curbuf->b_ml.ml_line_count || n >= halfheight)
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parents:
diff changeset
238 break;
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parents:
diff changeset
239 (void)hasFolding(lnum, NULL, &lnum);
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vimboss
parents:
diff changeset
240 }
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vimboss
parents:
diff changeset
241 }
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vimboss
parents:
diff changeset
242 else
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vimboss
parents:
diff changeset
243 #endif
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parents:
diff changeset
244 n = curwin->w_topline + p_so - curwin->w_cursor.lnum;
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parents:
diff changeset
245
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vimboss
parents:
diff changeset
246 /* If we weren't very close to begin with, we scroll to put the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
247 * cursor in the middle of the window. Otherwise put the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
248 * near the top of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
249 if (n >= halfheight)
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parents:
diff changeset
250 scroll_cursor_halfway(FALSE);
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vimboss
parents:
diff changeset
251 else
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vimboss
parents:
diff changeset
252 {
532
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parents: 164
diff changeset
253 scroll_cursor_top(scrolljump_value(), FALSE);
7
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parents:
diff changeset
254 check_botline = TRUE;
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vimboss
parents:
diff changeset
255 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
256 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
257
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
258 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
259 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
260 #ifdef FEAT_FOLDING
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parents:
diff changeset
261 /* Make sure topline is the first line of a fold. */
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parents:
diff changeset
262 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
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vimboss
parents:
diff changeset
263 #endif
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parents:
diff changeset
264 check_botline = TRUE;
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vimboss
parents:
diff changeset
265 }
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vimboss
parents:
diff changeset
266 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
267
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vimboss
parents:
diff changeset
268 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
269 * If the cursor is below the bottom of the window, scroll the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
270 * to put the cursor on the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
271 * When w_botline is invalid, recompute it first, to avoid a redraw later.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
272 * If w_botline was approximated, we might need a redraw later in a few
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
273 * cases, but we don't want to spend (a lot of) time recomputing w_botline
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vimboss
parents:
diff changeset
274 * for every small change.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
275 */
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vimboss
parents:
diff changeset
276 if (check_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
277 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
278 if (!(curwin->w_valid & VALID_BOTLINE_AP))
3fc0f57ecb91 updated for version 7.0001
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parents:
diff changeset
279 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
280
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
281 if (curwin->w_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
282 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
283 if (curwin->w_cursor.lnum < curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
284 && ((long)curwin->w_cursor.lnum
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
285 >= (long)curwin->w_botline - p_so
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
286 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
287 || hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
288 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
289 ))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
290 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
291 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
292
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
293 /* Cursor is above botline, check if there are 'scrolloff'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
294 * window lines below the cursor. If not, need to scroll. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
295 n = curwin->w_empty_rows;
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vimboss
parents:
diff changeset
296 loff.lnum = curwin->w_cursor.lnum;
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vimboss
parents:
diff changeset
297 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
298 /* In a fold go to its last line. */
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vimboss
parents:
diff changeset
299 (void)hasFolding(loff.lnum, NULL, &loff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
300 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
301 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
302 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
303 n += curwin->w_filler_rows;
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vimboss
parents:
diff changeset
304 #endif
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vimboss
parents:
diff changeset
305 loff.height = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
306 while (loff.lnum < curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
307 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
308 && (loff.lnum + 1 < curwin->w_botline || loff.fill == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
309 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
310 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
311 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
312 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
313 if (n >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
314 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
315 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
316 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
317 if (n >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
318 /* sufficient context, no need to scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
319 check_botline = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
320 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
321 if (check_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
322 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
323 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
324 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
325 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
326 /* Count the number of logical lines between the cursor and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
327 * botline - p_so (approximation of how much will be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
328 * scrolled). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
329 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
330 for (lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
331 lnum >= curwin->w_botline - p_so; --lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
332 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
333 ++line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
334 /* stop at end of file or when we know we are far off */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
335 if (lnum <= 0 || line_count > curwin->w_height + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
336 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
337 (void)hasFolding(lnum, &lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
338 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
339 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
340 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
341 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
342 line_count = curwin->w_cursor.lnum - curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
343 + 1 + p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
344 if (line_count <= curwin->w_height + 1)
532
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
345 scroll_cursor_bot(scrolljump_value(), FALSE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
346 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
347 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
348 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
349 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
350 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
351 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
352
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
353 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
354 * Need to redraw when topline changed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
355 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
356 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
357 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
358 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
359 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
360 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
361 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
362 dollar_vcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
363 if (curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
364 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
365 curwin->w_skipcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
366 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
367 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
368 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
369 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
370 /* May need to set w_skipcol when cursor in w_topline. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
371 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
372 validate_cursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
373 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
374
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
375 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
376 p_so = save_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
377 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
378 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
379
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
380 /*
532
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
381 * Return the scrolljump value to use for the current window.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
382 * When 'scrolljump' is positive use it as-is.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
383 * When 'scrolljump' is negative use it as a percentage of the window height.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
384 */
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
385 static int
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
386 scrolljump_value()
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
387 {
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
388 if (p_sj >= 0)
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
389 return (int)p_sj;
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
390 return (curwin->w_height * -p_sj) / 100;
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
391 }
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
392
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
393 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
394 * Return TRUE when there are not 'scrolloff' lines above the cursor for the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
395 * current window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
396 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
397 static int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
398 check_top_offset()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
399 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
400 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
401 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
402
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
403 if (curwin->w_cursor.lnum < curwin->w_topline + p_so
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
404 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
405 || hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
406 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
407 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
408 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
409 loff.lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
410 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
411 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
412 n = curwin->w_topfill; /* always have this context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
413 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
414 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
415 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
416 /* Count the visible screen lines above the cursor line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
417 while (n < p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
418 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
419 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
420 /* Stop when included a line above the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
421 if (loff.lnum < curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
422 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
423 || (loff.lnum == curwin->w_topline && loff.fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
424 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
425 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
426 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
427 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
428 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
429 if (n < p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
430 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
431 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
432 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
433 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
434
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
435 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
436 update_curswant()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
437 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
438 if (curwin->w_set_curswant)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
439 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
440 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
441 curwin->w_curswant = curwin->w_virtcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
442 curwin->w_set_curswant = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
443 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
444 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
445
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
446 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
447 * Check if the cursor has moved. Set the w_valid flag accordingly.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
448 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
449 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
450 check_cursor_moved(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
451 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
452 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
453 if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
454 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
455 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
456 |VALID_CHEIGHT|VALID_CROW|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
457 wp->w_valid_cursor = wp->w_cursor;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
458 wp->w_valid_leftcol = wp->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
459 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
460 else if (wp->w_cursor.col != wp->w_valid_cursor.col
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
461 || wp->w_leftcol != wp->w_valid_leftcol
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
462 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
463 || wp->w_cursor.coladd != wp->w_valid_cursor.coladd
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
464 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
465 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
466 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
467 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
468 wp->w_valid_cursor.col = wp->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
469 wp->w_valid_leftcol = wp->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
470 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
471 wp->w_valid_cursor.coladd = wp->w_cursor.coladd;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
472 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
473 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
474 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
475
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
476 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
477 * Call this function when some window settings have changed, which require
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
478 * the cursor position, botline and topline to be recomputed and the window to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
479 * be redrawn. E.g, when changing the 'wrap' option or folding.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
480 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
481 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
482 changed_window_setting()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
483 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
484 changed_window_setting_win(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
485 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
486
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
487 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
488 changed_window_setting_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
489 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
490 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
491 wp->w_lines_valid = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
492 changed_line_abv_curs_win(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
493 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
494 redraw_win_later(wp, NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
495 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
496
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
497 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
498 * Set wp->w_topline to a certain number.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
499 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
500 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
501 set_topline(wp, lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
502 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
503 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
504 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
505 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
506 /* go to first of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
507 (void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
508 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
509 /* Approximate the value of w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
510 wp->w_botline += lnum - wp->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
511 wp->w_topline = lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
512 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
513 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
514 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
515 wp->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
516 /* Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
517 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
518 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
519
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
520 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
521 * Call this function when the length of the cursor line (in screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
522 * characters) has changed, and the change is before the cursor.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
523 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
524 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
525 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
526 changed_cline_bef_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
527 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
528 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
529 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
530 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
531
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
532 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
533 changed_cline_bef_curs_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
534 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
535 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
536 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
537 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
538 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
539
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
540 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
541 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
542 * Call this function when the length of the cursor line (in screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
543 * characters) has changed, and the position of the cursor doesn't change.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
544 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
545 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
546 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
547 changed_cline_aft_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
548 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
549 curwin->w_valid &= ~VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
550 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
551 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
552
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
553 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
554 * Call this function when the length of a line (in screen characters) above
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
555 * the cursor have changed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
556 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
557 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
558 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
559 changed_line_abv_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
560 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
561 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
562 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
563 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
564
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
565 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
566 changed_line_abv_curs_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
567 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
568 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
569 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
570 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
571 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
572
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
573 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
574 * Make sure the value of curwin->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
575 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
576 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
577 validate_botline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
578 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
579 if (!(curwin->w_valid & VALID_BOTLINE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
580 comp_botline(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
581 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
582
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
583 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
584 * Make sure the value of wp->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
585 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
586 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
587 validate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
588 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
589 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
590 if (!(wp->w_valid & VALID_BOTLINE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
591 comp_botline(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
592 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
593
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
594 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
595 * Mark curwin->w_botline as invalid (because of some change in the buffer).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
596 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
597 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
598 invalidate_botline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
599 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
600 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
601 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
602
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
603 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
604 invalidate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
605 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
606 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
607 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
608 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
609
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
610 #if 0 /* never used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
611 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
612 * Mark curwin->w_botline as approximated (because of some small change in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
613 * buffer).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
614 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
615 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
616 approximate_botline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
617 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
618 curwin->w_valid &= ~VALID_BOTLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
619 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
620 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
621
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
622 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
623 approximate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
624 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
625 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
626 wp->w_valid &= ~VALID_BOTLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
627 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
628
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
629 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
630 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
631 * Return TRUE if curwin->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
632 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
633 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
634 botline_valid()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
635 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
636 return (curwin->w_valid & VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
637 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
638 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
639
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
640 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
641 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
642 * Return TRUE if curwin->w_botline is valid or approximated.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
643 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
644 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
645 botline_approximated()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
646 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
647 return (curwin->w_valid & VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
648 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
649 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
650
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
651 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
652 * Return TRUE if curwin->w_wrow and curwin->w_wcol are valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
653 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
654 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
655 cursor_valid()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
656 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
657 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
658 return ((curwin->w_valid & (VALID_WROW|VALID_WCOL)) ==
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
659 (VALID_WROW|VALID_WCOL));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
660 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
661
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
662 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
663 * Validate cursor position. Makes sure w_wrow and w_wcol are valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
664 * w_topline must be valid, you may need to call update_topline() first!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
665 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
666 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
667 validate_cursor()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
668 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
669 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
670 if ((curwin->w_valid & (VALID_WCOL|VALID_WROW)) != (VALID_WCOL|VALID_WROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
671 curs_columns(TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
672 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
673
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
674 #if defined(FEAT_GUI) || defined(PROTO)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
675 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
676 * validate w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
677 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
678 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
679 validate_cline_row()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
680 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
681 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
682 * First make sure that w_topline is valid (after moving the cursor).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
683 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
684 update_topline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
685 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
686 if (!(curwin->w_valid & VALID_CROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
687 curs_rows(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
688 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
689 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
690
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
691 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
692 * Compute wp->w_cline_row and wp->w_cline_height, based on the current value
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
693 * of wp->w_topine.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
694 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
695 * Returns OK when cursor is in the window, FAIL when it isn't.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
696 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
697 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
698 curs_rows(wp, do_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
699 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
700 int do_botline; /* also compute w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
701 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
702 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
703 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
704 int all_invalid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
705 int valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
706 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
707 long fold_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
708 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
709
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
710 /* Check if wp->w_lines[].wl_size is invalid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
711 all_invalid = (!redrawing()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
712 || wp->w_lines_valid == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
713 || wp->w_lines[0].wl_lnum > wp->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
714 i = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
715 wp->w_cline_row = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
716 for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
717 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
718 valid = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
719 if (!all_invalid && i < wp->w_lines_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
720 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
721 if (wp->w_lines[i].wl_lnum < lnum || !wp->w_lines[i].wl_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
722 continue; /* skip changed or deleted lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
723 if (wp->w_lines[i].wl_lnum == lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
724 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
725 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
726 /* Check for newly inserted lines below this row, in which
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
727 * case we need to check for folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
728 if (!wp->w_buffer->b_mod_set
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
729 || wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
730 || wp->w_buffer->b_mod_top
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
731 > wp->w_lines[i].wl_lastlnum + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
732 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
733 valid = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
734 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
735 else if (wp->w_lines[i].wl_lnum > lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
736 --i; /* hold at inserted lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
737 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
738 if (valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
739 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
740 && (lnum != wp->w_topline || !wp->w_p_diff)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
741 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
742 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
743 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
744 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
745 lnum = wp->w_lines[i].wl_lastlnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
746 /* Cursor inside folded lines, don't count this row */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
747 if (lnum > wp->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
748 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
749 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
750 ++lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
751 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
752 wp->w_cline_row += wp->w_lines[i].wl_size;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
753 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
754 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
755 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
756 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
757 fold_count = foldedCount(wp, lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
758 if (fold_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
759 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
760 lnum += fold_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
761 if (lnum > wp->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
762 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
763 ++wp->w_cline_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
764 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
765 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
766 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
767 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
768 if (lnum == wp->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
769 wp->w_cline_row += plines_win_nofill(wp, lnum++, TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
770 + wp->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
771 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
772 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
773 wp->w_cline_row += plines_win(wp, lnum++, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
774 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
775 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
776
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
777 check_cursor_moved(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
778 if (!(wp->w_valid & VALID_CHEIGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
779 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
780 if (all_invalid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
781 || i == wp->w_lines_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
782 || (i < wp->w_lines_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
783 && (!wp->w_lines[i].wl_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
784 || wp->w_lines[i].wl_lnum != wp->w_cursor.lnum)))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
785 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
786 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
787 if (wp->w_cursor.lnum == wp->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
788 wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
789 TRUE) + wp->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
790 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
791 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
792 wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
793 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
794 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
795 NULL, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
796 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
797 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
798 else if (i > wp->w_lines_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
799 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
800 /* a line that is too long to fit on the last screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
801 wp->w_cline_height = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
802 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
803 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
804 NULL, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
805 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
806 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
807 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
808 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
809 wp->w_cline_height = wp->w_lines[i].wl_size;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
810 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
811 wp->w_cline_folded = wp->w_lines[i].wl_folded;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
812 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
813 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
814 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
815
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
816 wp->w_valid |= VALID_CROW|VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
817
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
818 /* validate botline too, if update_screen doesn't do it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
819 if (do_botline && all_invalid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
820 validate_botline_win(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
821 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
822
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
823 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
824 * Validate curwin->w_virtcol only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
825 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
826 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
827 validate_virtcol()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
828 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
829 validate_virtcol_win(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
830 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
831
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
832 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
833 * Validate wp->w_virtcol only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
834 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
835 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
836 validate_virtcol_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
837 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
838 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
839 check_cursor_moved(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
840 if (!(wp->w_valid & VALID_VIRTCOL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
841 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
842 getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
843 wp->w_valid |= VALID_VIRTCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
844 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
845 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
846
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
847 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
848 * Validate curwin->w_cline_height only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
849 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
850 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
851 validate_cheight()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
852 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
853 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
854 if (!(curwin->w_valid & VALID_CHEIGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
855 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
856 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
857 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
858 curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
859 + curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
860 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
861 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
862 curwin->w_cline_height = plines(curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
863 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
864 curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
865 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
866 curwin->w_valid |= VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
867 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
868 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
869
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
870 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
871 * validate w_wcol and w_virtcol only. Only correct when 'wrap' on!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
872 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
873 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
874 validate_cursor_col()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
875 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
876 colnr_T off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
877 colnr_T col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
878
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
879 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
880 if (!(curwin->w_valid & VALID_WCOL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
881 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
882 col = curwin->w_virtcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
883 off = curwin_col_off();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
884 col += off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
885
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
886 /* long line wrapping, adjust curwin->w_wrow */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
887 if (curwin->w_p_wrap && col >= (colnr_T)W_WIDTH(curwin)
119
e8f07016e34d updated for version 7.0042
vimboss
parents: 36
diff changeset
888 && W_WIDTH(curwin) - off + curwin_col_off2() > 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
889 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
890 col -= W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
891 col = col % (W_WIDTH(curwin) - off + curwin_col_off2());
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
892 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
893 curwin->w_wcol = col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
894 curwin->w_valid |= VALID_WCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
895 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
896 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
897
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
898 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
899 * Compute offset of a window, occupied by line number, fold column and sign
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
900 * column (these don't move when scrolling horizontally).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
901 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
902 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
903 win_col_off(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
904 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
905 {
13
24d5189d3956 updated for version 7.0005
vimboss
parents: 7
diff changeset
906 return ((wp->w_p_nu ? number_width(wp) + 1 : 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
907 #ifdef FEAT_CMDWIN
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
908 + (cmdwin_type == 0 || wp != curwin ? 0 : 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
909 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
910 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
911 + wp->w_p_fdc
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
912 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
913 #ifdef FEAT_SIGNS
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
914 + (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
915 # ifdef FEAT_NETBEANS_INTG
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
916 /* always show glyph gutter in netbeans */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
917 usingNetbeans ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
918 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
919 wp->w_buffer->b_signlist != NULL ? 2 : 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
920 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
921 );
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
922 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
923
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
924 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
925 curwin_col_off()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
926 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
927 return win_col_off(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
928 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
929
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
930 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
931 * Return the difference in column offset for the second screen line of a
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
932 * wrapped line. It's 8 if 'number' is on and 'n' is in 'cpoptions'.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
933 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
934 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
935 win_col_off2(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
936 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
937 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
938 if (wp->w_p_nu && vim_strchr(p_cpo, CPO_NUMCOL) != NULL)
13
24d5189d3956 updated for version 7.0005
vimboss
parents: 7
diff changeset
939 return number_width(wp) + 1;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
940 return 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
941 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
942
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
943 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
944 curwin_col_off2()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
945 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
946 return win_col_off2(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
947 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
948
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
949 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
950 * compute curwin->w_wcol and curwin->w_virtcol.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
951 * Also updates curwin->w_wrow and curwin->w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
952 * Also updates curwin->w_leftcol.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
953 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
954 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
955 curs_columns(scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
956 int scroll; /* when TRUE, may scroll horizontally */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
957 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
958 int diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
959 int extra; /* offset for first screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
960 int off_left, off_right;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
961 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
962 int p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
963 int width = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
964 int textwidth;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
965 int new_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
966 colnr_T startcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
967 colnr_T endcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
968 colnr_T prev_skipcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
969
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
970 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
971 * First make sure that w_topline is valid (after moving the cursor).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
972 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
973 update_topline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
974
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
975 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
976 * Next make sure that w_cline_row is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
977 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
978 if (!(curwin->w_valid & VALID_CROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
979 curs_rows(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
980
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
981 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
982 * Compute the number of virtual columns.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
983 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
984 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
985 if (curwin->w_cline_folded)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
986 /* In a folded line the cursor is always in the first column */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
987 startcol = curwin->w_virtcol = endcol = curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
988 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
989 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
990 getvvcol(curwin, &curwin->w_cursor,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
991 &startcol, &(curwin->w_virtcol), &endcol);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
992
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
993 /* remove '$' from change command when cursor moves onto it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
994 if (startcol > dollar_vcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
995 dollar_vcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
996
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
997 extra = curwin_col_off();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
998 curwin->w_wcol = curwin->w_virtcol + extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
999 endcol += extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1000
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1001 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1002 * Now compute w_wrow, counting screen lines from w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1003 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1004 curwin->w_wrow = curwin->w_cline_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1005
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1006 textwidth = W_WIDTH(curwin) - extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1007 if (textwidth <= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1008 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1009 /* No room for text, put cursor in last char of window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1010 curwin->w_wcol = W_WIDTH(curwin) - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1011 curwin->w_wrow = curwin->w_height - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1012 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1013 else if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1014 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1015 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1016 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1017 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1018 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1019 width = textwidth + curwin_col_off2();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1020
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1021 /* long line wrapping, adjust curwin->w_wrow */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1022 if (curwin->w_wcol >= W_WIDTH(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1023 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1024 n = (curwin->w_wcol - W_WIDTH(curwin)) / width + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1025 curwin->w_wcol -= n * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1026 curwin->w_wrow += n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1027
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1028 #ifdef FEAT_LINEBREAK
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1029 /* When cursor wraps to first char of next line in Insert
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1030 * mode, the 'showbreak' string isn't shown, backup to first
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1031 * column */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1032 if (*p_sbr && *ml_get_cursor() == NUL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1033 && curwin->w_wcol == (int)vim_strsize(p_sbr))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1034 curwin->w_wcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1035 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1036 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1037 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1038
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1039 /* No line wrapping: compute curwin->w_leftcol if scrolling is on and line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1040 * is not folded.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1041 * If scrolling is off, curwin->w_leftcol is assumed to be 0 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1042 else if (scroll
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1043 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1044 && !curwin->w_cline_folded
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1045 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1046 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1047 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1048 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1049 * If Cursor is left of the screen, scroll rightwards.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1050 * If Cursor is right of the screen, scroll leftwards
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1051 * If we get closer to the edge than 'sidescrolloff', scroll a little
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1052 * extra
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1053 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1054 off_left = (int)startcol - (int)curwin->w_leftcol - p_siso;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1055 off_right = (int)endcol - (int)(curwin->w_leftcol + W_WIDTH(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1056 - p_siso) + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1057 if (off_left < 0 || off_right > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1058 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1059 if (off_left < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1060 diff = -off_left;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1061 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1062 diff = off_right;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1063
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1064 /* When far off or not enough room on either side, put cursor in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1065 * middle of window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1066 if (p_ss == 0 || diff >= textwidth / 2 || off_right >= off_left)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1067 new_leftcol = curwin->w_wcol - extra - textwidth / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1068 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1069 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1070 if (diff < p_ss)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1071 diff = p_ss;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1072 if (off_left < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1073 new_leftcol = curwin->w_leftcol - diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1074 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1075 new_leftcol = curwin->w_leftcol + diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1076 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1077 if (new_leftcol < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1078 new_leftcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1079 if (new_leftcol != (int)curwin->w_leftcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1080 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1081 curwin->w_leftcol = new_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1082 /* screen has to be redrawn with new curwin->w_leftcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1083 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1084 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1085 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1086 curwin->w_wcol -= curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1087 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1088 else if (curwin->w_wcol > (int)curwin->w_leftcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1089 curwin->w_wcol -= curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1090 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1091 curwin->w_wcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1092
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1093 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1094 /* Skip over filler lines. At the top use w_topfill, there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1095 * may be some filler lines above the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1096 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1097 curwin->w_wrow += curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1098 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1099 curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1100 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1101
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1102 prev_skipcol = curwin->w_skipcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1103
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1104 p_lines = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1105 if ((curwin->w_wrow >= curwin->w_height
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1106 || ((prev_skipcol > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1107 || curwin->w_wrow + p_so >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1108 && (p_lines =
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1109 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1110 plines_win_nofill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1111 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1112 plines_win
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1113 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1114 (curwin, curwin->w_cursor.lnum, FALSE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1115 - 1 >= curwin->w_height))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1116 && curwin->w_height != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1117 && curwin->w_cursor.lnum == curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1118 && width > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1119 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1120 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1121 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1122 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1123 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1124 /* Cursor past end of screen. Happens with a single line that does
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1125 * not fit on screen. Find a skipcol to show the text around the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1126 * cursor. Avoid scrolling all the time. compute value of "extra":
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1127 * 1: Less than "p_so" lines above
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1128 * 2: Less than "p_so" lines below
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1129 * 3: both of them */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1130 extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1131 if (curwin->w_skipcol + p_so * width > curwin->w_virtcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1132 extra = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1133 /* Compute last display line of the buffer line that we want at the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1134 * bottom of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1135 if (p_lines == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1136 p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1137 --p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1138 if (p_lines > curwin->w_wrow + p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1139 n = curwin->w_wrow + p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1140 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1141 n = p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1142 if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1143 extra += 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1144
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1145 if (extra == 3 || p_lines < p_so * 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1146 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1147 /* not enough room for 'scrolloff', put cursor in the middle */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1148 n = curwin->w_virtcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1149 if (n > curwin->w_height / 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1150 n -= curwin->w_height / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1151 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1152 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1153 /* don't skip more than necessary */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1154 if (n > p_lines - curwin->w_height + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1155 n = p_lines - curwin->w_height + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1156 curwin->w_skipcol = n * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1157 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1158 else if (extra == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1159 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1160 /* less then 'scrolloff' lines above, decrease skipcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1161 extra = (curwin->w_skipcol + p_so * width - curwin->w_virtcol
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1162 + width - 1) / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1163 if (extra > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1164 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1165 if ((colnr_T)(extra * width) > curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1166 extra = curwin->w_skipcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1167 curwin->w_skipcol -= extra * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1168 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1169 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1170 else if (extra == 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1171 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1172 /* less then 'scrolloff' lines below, increase skipcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1173 endcol = (n - curwin->w_height + 1) * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1174 while (endcol > curwin->w_virtcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1175 endcol -= width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1176 if (endcol > curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1177 curwin->w_skipcol = endcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1178 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1179
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1180 curwin->w_wrow -= curwin->w_skipcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1181 if (curwin->w_wrow >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1182 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1183 /* small window, make sure cursor is in it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1184 extra = curwin->w_wrow - curwin->w_height + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1185 curwin->w_skipcol += extra * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1186 curwin->w_wrow -= extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1187 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1188
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1189 extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1190 if (extra > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1191 win_ins_lines(curwin, 0, extra, FALSE, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1192 else if (extra < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1193 win_del_lines(curwin, 0, -extra, FALSE, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1194 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1195 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1196 curwin->w_skipcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1197 if (prev_skipcol != curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1198 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1199
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1200 curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1201 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1202
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1203 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1204 * Scroll the current window down by "line_count" logical lines. "CTRL-Y"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1205 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1206 /*ARGSUSED*/
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1207 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1208 scrolldown(line_count, byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1209 long line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1210 int byfold; /* TRUE: count a closed fold as one line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1211 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1212 long done = 0; /* total # of physical lines done */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1213 int wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1214 int moved = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1215
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1216 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1217 linenr_T first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1218
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1219 /* Make sure w_topline is at the first of a sequence of folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1220 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1221 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1222 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1223 while (line_count-- > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1224 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1225 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1226 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1227 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1228 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1229 ++done;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1230 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1231 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1232 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1233 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1234 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1235 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1236 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1237 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1238 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1239 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1240 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1241 /* A sequence of folded lines only counts for one logical line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1242 if (hasFolding(curwin->w_topline, &first, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1243 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1244 ++done;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1245 if (!byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1246 line_count -= curwin->w_topline - first - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1247 curwin->w_botline -= curwin->w_topline - first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1248 curwin->w_topline = first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1249 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1250 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1251 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1252 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1253 done += plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1254 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1255 done += plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1256 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1257 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1258 --curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1259 invalidate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1260 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1261 curwin->w_wrow += done; /* keep w_wrow updated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1262 curwin->w_cline_row += done; /* keep w_cline_row updated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1263
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1264 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1265 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1266 curwin->w_cline_row = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1267 check_topfill(curwin, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1268 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1269
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1270 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1271 * Compute the row number of the last row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1272 * and move the cursor onto the displayed part of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1273 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1274 wrow = curwin->w_wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1275 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1276 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1277 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1278 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1279 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1280 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1281 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1282 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1283 wrow += curwin->w_cline_height - 1 -
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1284 curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1285 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1286 while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1287 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1288 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1289 if (hasFolding(curwin->w_cursor.lnum, &first, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1290 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1291 --wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1292 if (first == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1293 curwin->w_cursor.lnum = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1294 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1295 curwin->w_cursor.lnum = first - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1296 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1297 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1298 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1299 wrow -= plines(curwin->w_cursor.lnum--);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1300 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1301 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1302 moved = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1303 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1304 if (moved)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1305 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1306 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1307 /* Move cursor to first line of closed fold. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1308 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1309 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1310 coladvance(curwin->w_curswant);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1311 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1312 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1313
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1314 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1315 * Scroll the current window up by "line_count" logical lines. "CTRL-E"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1316 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1317 /*ARGSUSED*/
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1318 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1319 scrollup(line_count, byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1320 long line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1321 int byfold; /* TRUE: count a closed fold as one line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1322 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1323 #if defined(FEAT_FOLDING) || defined(FEAT_DIFF)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1324 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1325
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1326 if (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1327 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1328 (byfold && hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1329 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1330 ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1331 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1332 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1333 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1334 curwin->w_p_diff
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1335 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1336 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1337 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1338 /* count each sequence of folded lines as one logical line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1339 lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1340 while (line_count--)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1341 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1342 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1343 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1344 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1345 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1346 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1347 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1348 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1349 if (byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1350 (void)hasFolding(lnum, NULL, &lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1351 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1352 if (lnum >= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1353 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1354 ++lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1355 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1356 curwin->w_topfill = diff_check_fill(curwin, lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1357 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1358 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1359 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1360 /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1361 curwin->w_botline += lnum - curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1362 curwin->w_topline = lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1363 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1364 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1365 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1366 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1367 curwin->w_topline += line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1368 curwin->w_botline += line_count; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1369 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1370
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1371 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1372 curwin->w_topline = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1373 if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1374 curwin->w_botline = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1375
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1376 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1377 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1378 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1379
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1380 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1381 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1382 /* Make sure w_topline is at the first of a sequence of folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1383 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1384 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1385
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1386 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1387 if (curwin->w_cursor.lnum < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1388 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1389 curwin->w_cursor.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1390 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1391 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1392 coladvance(curwin->w_curswant);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1393 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1394 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1395
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1396 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1397 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1398 * Don't end up with too many filler lines in the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1399 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1400 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1401 check_topfill(wp, down)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1402 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1403 int down; /* when TRUE scroll down when not enough space */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1404 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1405 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1406
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1407 if (wp->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1408 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1409 n = plines_win_nofill(wp, wp->w_topline, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1410 if (wp->w_topfill + n > wp->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1411 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1412 if (down && wp->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1413 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1414 --wp->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1415 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1416 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1417 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1418 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1419 wp->w_topfill = wp->w_height - n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1420 if (wp->w_topfill < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1421 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1422 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1423 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1424 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1425 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1426
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1427 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1428 * Use as many filler lines as possible for w_topline. Make sure w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1429 * is still visible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1430 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1431 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1432 max_topfill()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1433 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1434 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1435
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1436 n = plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1437 if (n >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1438 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1439 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1440 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1441 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1442 if (curwin->w_topfill + n > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1443 curwin->w_topfill = curwin->w_height - n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1444 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1445 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1446 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1447
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1448 #if defined(FEAT_INS_EXPAND) || defined(PROTO)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1449 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1450 * Scroll the screen one line down, but don't do it if it would move the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1451 * cursor off the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1452 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1453 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1454 scrolldown_clamp()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1455 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1456 int end_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1457 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1458 int can_fill = (curwin->w_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1459 < diff_check_fill(curwin, curwin->w_topline));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1460 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1461
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1462 if (curwin->w_topline <= 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1463 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1464 && !can_fill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1465 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1466 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1467 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1468
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1469 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1470
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1471 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1472 * Compute the row number of the last row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1473 * and make sure it doesn't go off the screen. Make sure the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1474 * doesn't go past 'scrolloff' lines from the screen end.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1475 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1476 end_row = curwin->w_wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1477 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1478 if (can_fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1479 ++end_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1480 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1481 end_row += plines_nofill(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1482 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1483 end_row += plines(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1484 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1485 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1486 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1487 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1488 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1489 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1490 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1491 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1492 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1493 end_row += curwin->w_cline_height - 1 -
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1494 curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1495 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1496 if (end_row < curwin->w_height - p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1497 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1498 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1499 if (can_fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1500 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1501 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1502 check_topfill(curwin, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1503 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1504 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1505 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1506 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1507 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1508 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1509 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1510 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1511 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1512 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1513 hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1514 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1515 --curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1516 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1517 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1518 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1519
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1520 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1521 * Scroll the screen one line up, but don't do it if it would move the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1522 * off the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1523 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1524 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1525 scrollup_clamp()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1526 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1527 int start_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1528
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1529 if (curwin->w_topline == curbuf->b_ml.ml_line_count
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1530 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1531 && curwin->w_topfill == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1532 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1533 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1534 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1535
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1536 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1537
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1538 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1539 * Compute the row number of the first row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1540 * and make sure it doesn't go off the screen. Make sure the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1541 * doesn't go before 'scrolloff' lines from the screen start.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1542 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1543 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1544 start_row = curwin->w_wrow - plines_nofill(curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1545 - curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1546 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1547 start_row = curwin->w_wrow - plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1548 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1549 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1550 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1551 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1552 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1553 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1554 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1555 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1556 start_row -= curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1557 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1558 if (start_row >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1559 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1560 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1561 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1562 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1563 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1564 #endif
36
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1565 {
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1566 #ifdef FEAT_FOLDING
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1567 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1568 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1569 ++curwin->w_topline;
36
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1570 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1571 ++curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1572 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1573 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1574 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1575 #endif /* FEAT_INS_EXPAND */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1576
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1577 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1578 * Add one line above "lp->lnum". This can be a filler line, a closed fold or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1579 * a (wrapped) text line. Uses and sets "lp->fill".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1580 * Returns the height of the added line in "lp->height".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1581 * Lines above the first one are incredibly high.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1582 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1583 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1584 topline_back(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1585 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1586 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1587 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1588 if (lp->fill < diff_check_fill(curwin, lp->lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1589 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1590 /* Add a filler line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1591 ++lp->fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1592 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1593 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1594 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1595 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1596 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1597 --lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1598 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1599 lp->fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1600 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1601 if (lp->lnum < 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1602 lp->height = MAXCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1603 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1604 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1605 if (hasFolding(lp->lnum, &lp->lnum, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1606 /* Add a closed fold */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1607 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1608 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1609 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1610 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1611 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1612 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1613 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1614 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1615 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1616 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1617 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1618 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1619
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1620 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1621 * Add one line below "lp->lnum". This can be a filler line, a closed fold or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1622 * a (wrapped) text line. Uses and sets "lp->fill".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1623 * Returns the height of the added line in "lp->height".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1624 * Lines below the last one are incredibly high.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1625 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1626 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1627 botline_forw(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1628 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1629 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1630 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1631 if (lp->fill < diff_check_fill(curwin, lp->lnum + 1))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1632 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1633 /* Add a filler line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1634 ++lp->fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1635 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1636 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1637 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1638 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1639 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1640 ++lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1641 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1642 lp->fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1643 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1644 if (lp->lnum > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1645 lp->height = MAXCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1646 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1647 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1648 if (hasFolding(lp->lnum, NULL, &lp->lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1649 /* Add a closed fold */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1650 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1651 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1652 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1653 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1654 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1655 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1656 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1657 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1658 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1659 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1660 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1661 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1662
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1663 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1664 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1665 * Switch from including filler lines below lp->lnum to including filler
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1666 * lines above loff.lnum + 1. This keeps pointing to the same line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1667 * When there are no filler lines nothing changes.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1668 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1669 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1670 botline_topline(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1671 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1672 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1673 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1674 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1675 ++lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1676 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1677 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1678 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1679
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1680 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1681 * Switch from including filler lines above lp->lnum to including filler
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1682 * lines below loff.lnum - 1. This keeps pointing to the same line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1683 * When there are no filler lines nothing changes.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1684 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1685 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1686 topline_botline(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1687 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1688 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1689 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1690 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1691 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1692 --lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1693 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1694 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1695 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1696
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1697 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1698 * Recompute topline to put the cursor at the top of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1699 * Scroll at least "min_scroll" lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1700 * If "always" is TRUE, always set topline (for "zt").
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1701 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1702 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1703 scroll_cursor_top(min_scroll, always)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1704 int min_scroll;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1705 int always;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1706 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1707 int scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1708 int extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1709 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1710 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1711 linenr_T top; /* just above displayed lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1712 linenr_T bot; /* just below displayed lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1713 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1714 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1715 linenr_T old_topfill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1716 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1717 linenr_T new_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1718 int off = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1719
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1720 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1721 if (mouse_dragging > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1722 off = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1723 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1724
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1725 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1726 * Decrease topline until:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1727 * - it has become 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1728 * - (part of) the cursor line is moved off the screen or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1729 * - moved at least 'scrolljump' lines and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1730 * - at least 'scrolloff' lines above and below the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1731 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1732 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1733 used = curwin->w_cline_height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1734 if (curwin->w_cursor.lnum < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1735 scrolled = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1736
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1737 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1738 if (hasFolding(curwin->w_cursor.lnum, &top, &bot))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1739 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1740 --top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1741 ++bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1742 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1743 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1744 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1745 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1746 top = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1747 bot = curwin->w_cursor.lnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1748 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1749 new_topline = top + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1750
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1751 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1752 /* count filler lines of the cursor window as context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1753 i = diff_check_fill(curwin, curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1754 used += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1755 extra += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1756 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1757
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1758 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1759 * Check if the lines from "top" to "bot" fit in the window. If they do,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1760 * set new_topline and advance "top" and "bot" to include more lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1761 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1762 while (top > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1763 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1764 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1765 if (hasFolding(top, &top, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1766 /* count one logical line for a sequence of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1767 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1768 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1769 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1770 i = plines(top);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1771 used += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1772 if (extra + i <= off && bot < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1773 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1774 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1775 if (hasFolding(bot, NULL, &bot))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1776 /* count one logical line for a sequence of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1777 ++used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1778 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1779 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1780 used += plines(bot);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1781 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1782 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1783 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1784 if (top < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1785 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1786
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1787 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1788 * If scrolling is needed, scroll at least 'sj' lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1789 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1790 if ((new_topline >= curwin->w_topline || scrolled > min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1791 && extra >= off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1792 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1793
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1794 extra += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1795 new_topline = top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1796 --top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1797 ++bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1798 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1799
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1800 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1801 * If we don't have enough space, put cursor in the middle.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1802 * This makes sure we get the same position when using "k" and "j"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1803 * in a small window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1804 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1805 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1806 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1807 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1808 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1809 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1810 * If "always" is FALSE, only adjust topline to a lower value, higher
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1811 * value may happen with wrapping lines
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1812 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1813 if (new_topline < curwin->w_topline || always)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1814 curwin->w_topline = new_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1815 if (curwin->w_topline > curwin->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1816 curwin->w_topline = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1817 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1818 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1819 if (curwin->w_topfill > 0 && extra > off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1820 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1821 curwin->w_topfill -= extra - off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1822 if (curwin->w_topfill < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1823 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1824 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1825 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1826 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1827 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1828 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1829 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1830 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1831 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1832 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1833 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1834 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1835 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1836 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1837
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1838 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1839 * Set w_empty_rows and w_filler_rows for window "wp", having used up "used"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1840 * screen lines for text lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1841 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1842 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1843 set_empty_rows(wp, used)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1844 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1845 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1846 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1847 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1848 wp->w_filler_rows = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1849 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1850 if (used == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1851 wp->w_empty_rows = 0; /* single line that doesn't fit */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1852 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1853 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1854 wp->w_empty_rows = wp->w_height - used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1855 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1856 if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1857 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1858 wp->w_filler_rows = diff_check_fill(wp, wp->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1859 if (wp->w_empty_rows > wp->w_filler_rows)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1860 wp->w_empty_rows -= wp->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1861 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1862 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1863 wp->w_filler_rows = wp->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1864 wp->w_empty_rows = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1865 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1866 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1867 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1868 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1869 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1870
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1871 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1872 * Recompute topline to put the cursor at the bottom of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1873 * Scroll at least "min_scroll" lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1874 * If "set_topbot" is TRUE, set topline and botline first (for "zb").
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1875 * This is messy stuff!!!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1876 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1877 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1878 scroll_cursor_bot(min_scroll, set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1879 int min_scroll;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1880 int set_topbot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1881 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1882 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1883 int scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1884 int extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1885 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1886 linenr_T line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1887 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1888 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1889 lineoff_T boff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1890 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1891 int old_topfill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1892 int fill_below_window;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1893 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1894 linenr_T old_botline = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1895 linenr_T old_valid = curwin->w_valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1896 int old_empty_rows = curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1897 linenr_T cln; /* Cursor Line Number */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1898
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1899 cln = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1900 if (set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1901 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1902 used = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1903 curwin->w_botline = cln + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1904 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1905 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1906 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1907 for (curwin->w_topline = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1908 curwin->w_topline > 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1909 curwin->w_topline = loff.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1910 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1911 loff.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1912 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1913 if (used + loff.height > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1914 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1915 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1916 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1917 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1918 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1919 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1920 set_empty_rows(curwin, used);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1921 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1922 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1923 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1924 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1925 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1926 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1927 curwin->w_valid &= ~(VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1928 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1929 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1930 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1931
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1932 /* The lines of the cursor line itself are always used. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1933 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1934 used = plines_nofill(cln);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1935 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1936 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1937 used = curwin->w_cline_height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1938 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1939
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1940 /* If the cursor is below botline, we will at least scroll by the height
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1941 * of the cursor line. Correct for empty lines, which are really part of
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1942 * botline. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1943 if (cln >= curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1944 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1945 scrolled = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1946 if (cln == curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1947 scrolled -= curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1948 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1949
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1950 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1951 * Stop counting lines to scroll when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1952 * - hitting start of the file
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1953 * - scrolled nothing or at least 'sj' lines
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1954 * - at least 'so' lines below the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1955 * - lines between botline and cursor have been counted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1956 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1957 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1958 if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1959 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1960 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1961 loff.lnum = cln;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1962 boff.lnum = cln;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1963 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1964 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1965 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1966 boff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1967 fill_below_window = diff_check_fill(curwin, curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1968 - curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1969 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1970
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1971 while (loff.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1972 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1973 /* Stop when scrolled nothing or at least "min_scroll", found "extra"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1974 * context for 'scrolloff' and counted all lines below the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1975 if ((((scrolled <= 0 || scrolled >= min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1976 && extra >= (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1977 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1978 mouse_dragging ? mouse_dragging - 1 :
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1979 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1980 p_so))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1981 || boff.lnum + 1 > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1982 && loff.lnum <= curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1983 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1984 && (loff.lnum < curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1985 || loff.fill >= fill_below_window)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1986 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1987 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1988 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1989
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1990 /* Add one line above */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1991 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1992 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1993 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1994 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1995 if (loff.lnum >= curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1996 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1997 && (loff.lnum > curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1998 || loff.fill <= fill_below_window)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1999 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2000 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2001 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2002 /* Count screen lines that are below the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2003 scrolled += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2004 if (loff.lnum == curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2005 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2006 && boff.fill == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2007 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2008 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2009 scrolled -= curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2010 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2011
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2012 if (boff.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2013 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2014 /* Add one line below */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2015 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2016 used += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2017 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2018 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2019 if (extra < (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2020 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2021 mouse_dragging > 0 ? mouse_dragging - 1 :
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2022 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2023 p_so) || scrolled < min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2024 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2025 extra += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2026 if (boff.lnum >= curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2027 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2028 || (boff.lnum + 1 == curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2029 && boff.fill > curwin->w_filler_rows)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2030 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2031 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2032 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2033 /* Count screen lines that are below the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2034 scrolled += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2035 if (boff.lnum == curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2036 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2037 && boff.fill == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2038 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2039 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2040 scrolled -= curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2041 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2042 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2043 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2044 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2045
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2046 /* curwin->w_empty_rows is larger, no need to scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2047 if (scrolled <= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2048 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2049 /* more than a screenfull, don't scroll but redraw */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2050 else if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2051 line_count = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2052 /* scroll minimal number of lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2053 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2054 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2055 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2056 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2057 boff.fill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2058 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2059 boff.lnum = curwin->w_topline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2060 for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2061 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2062 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2063 i += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2064 ++line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2065 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2066 if (i < scrolled) /* below curwin->w_botline, don't scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2067 line_count = 9999;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2068 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2069
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2070 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2071 * Scroll up if the cursor is off the bottom of the screen a bit.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2072 * Otherwise put it at 1/2 of the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2073 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2074 if (line_count >= curwin->w_height && line_count > min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2075 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2076 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2077 scrollup(line_count, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2078
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2079 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2080 * If topline didn't change we need to restore w_botline and w_empty_rows
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2081 * (we changed them).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2082 * If topline did change, update_screen() will set botline.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2083 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2084 if (curwin->w_topline == old_topline && set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2085 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2086 curwin->w_botline = old_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2087 curwin->w_empty_rows = old_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2088 curwin->w_valid = old_valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2089 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2090 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2091 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2092
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2093 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2094 * Recompute topline to put the cursor halfway the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2095 * If "atend" is TRUE, also put it halfway at the end of the file.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2096 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2097 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2098 scroll_cursor_halfway(atend)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2099 int atend;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2100 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2101 int above = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2102 linenr_T topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2103 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2104 int topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2105 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2106 int below = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2107 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2108 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2109 lineoff_T boff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2110
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2111 loff.lnum = boff.lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2112 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2113 (void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2114 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2115 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2116 used = plines_nofill(loff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2117 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2118 boff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2119 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2120 used = plines(loff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2121 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2122 topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2123 while (topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2124 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2125 if (below <= above) /* add a line below the cursor first */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2126 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2127 if (boff.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2128 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2129 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2130 used += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2131 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2132 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2133 below += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2134 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2135 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2136 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2137 ++below; /* count a "~" line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2138 if (atend)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2139 ++used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2140 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2141 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2142
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2143 if (below > above) /* add a line above the cursor */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2144 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2145 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2146 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2147 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2148 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2149 above += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2150 topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2151 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2152 topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2153 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2154 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2155 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2156 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2157 if (!hasFolding(topline, &curwin->w_topline, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2158 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2159 curwin->w_topline = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2160 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2161 curwin->w_topfill = topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2162 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2163 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2164 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2165 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2166 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2167
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2168 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2169 * Correct the cursor position so that it is in a part of the screen at least
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2170 * 'so' lines from the top and bottom, if possible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2171 * If not possible, put it at the same position as scroll_cursor_halfway().
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2172 * When called topline must be valid!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2173 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2174 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2175 cursor_correct()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2176 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2177 int above = 0; /* screen lines above topline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2178 linenr_T topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2179 int below = 0; /* screen lines below botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2180 linenr_T botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2181 int above_wanted, below_wanted;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2182 linenr_T cln; /* Cursor Line Number */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2183 int max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2184
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2185 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2186 * How many lines we would like to have above/below the cursor depends on
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2187 * whether the first/last line of the file is on screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2188 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2189 above_wanted = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2190 below_wanted = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2191 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2192 if (mouse_dragging)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2193 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2194 above_wanted = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2195 below_wanted = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2196 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2197 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2198 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2199 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2200 above_wanted = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2201 max_off = curwin->w_height / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2202 if (below_wanted > max_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2203 below_wanted = max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2204 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2205 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2206 if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2207 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2208 && !mouse_dragging
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2209 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2210 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2211 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2212 below_wanted = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2213 max_off = (curwin->w_height - 1) / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2214 if (above_wanted > max_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2215 above_wanted = max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2216 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2217
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2218 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2219 * If there are sufficient file-lines above and below the cursor, we can
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2220 * return now.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2221 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2222 cln = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2223 if (cln >= curwin->w_topline + above_wanted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2224 && cln < curwin->w_botline - below_wanted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2225 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2226 && !hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2227 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2228 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2229 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2230
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2231 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2232 * Narrow down the area where the cursor can be put by taking lines from
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2233 * the top and the bottom until:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2234 * - the desired context lines are found
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2235 * - the lines from the top is past the lines from the bottom
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2236 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2237 topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2238 botline = curwin->w_botline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2239 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2240 /* count filler lines as context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2241 above = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2242 below = curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2243 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2244 while ((above < above_wanted || below < below_wanted) && topline < botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2245 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2246 if (below < below_wanted && (below <= above || above >= above_wanted))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2247 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2248 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2249 if (hasFolding(botline, &botline, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2250 ++below;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2251 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2252 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2253 below += plines(botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2254 --botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2255 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2256 if (above < above_wanted && (above < below || below >= below_wanted))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2257 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2258 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2259 if (hasFolding(topline, NULL, &topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2260 ++above;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2261 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2262 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2263 #ifndef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2264 above += plines(topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2265 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2266 above += plines_nofill(topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2267
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2268 /* Count filler lines below this line as context. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2269 if (topline < botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2270 above += diff_check_fill(curwin, topline + 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2271 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2272 ++topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2273 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2274 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2275 if (topline == botline || botline == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2276 curwin->w_cursor.lnum = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2277 else if (topline > botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2278 curwin->w_cursor.lnum = botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2279 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2280 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2281 if (cln < topline && curwin->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2282 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2283 curwin->w_cursor.lnum = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2284 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2285 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2286 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2287 if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2288 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2289 curwin->w_cursor.lnum = botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2290 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2291 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2292 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2293 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2294 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2295 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2296
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2297 static void get_scroll_overlap __ARGS((lineoff_T *lp, int dir));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2298
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2299 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2300 * move screen 'count' pages up or down and update screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2301 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2302 * return FAIL for failure, OK otherwise
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2303 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2304 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2305 onepage(dir, count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2306 int dir;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2307 long count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2308 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2309 long n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2310 int retval = OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2311 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2312 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2313
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2314 if (curbuf->b_ml.ml_line_count == 1) /* nothing to do */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2315 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2316 beep_flush();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2317 return FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2318 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2319
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2320 for ( ; count > 0; --count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2321 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2322 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2323 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2324 * It's an error to move a page up when the first line is already on
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2325 * the screen. It's an error to move a page down when the last line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2326 * is on the screen and the topline is 'scrolloff' lines from the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2327 * last line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2328 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2329 if (dir == FORWARD
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2330 ? ((curwin->w_topline >= curbuf->b_ml.ml_line_count - p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2331 && curwin->w_botline > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2332 : (curwin->w_topline == 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2333 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2334 && curwin->w_topfill ==
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2335 diff_check_fill(curwin, curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2336 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2337 ))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2338 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2339 beep_flush();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2340 retval = FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2341 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2342 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2343
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2344 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2345 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2346 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2347 if (dir == FORWARD)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2348 {
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2349 if (firstwin == lastwin && p_window > 0 && p_window < Rows - 1)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2350 {
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2351 /* Vi compatible scrolling */
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2352 if (p_window <= 2)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2353 ++curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2354 else
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2355 curwin->w_topline += p_window - 2;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2356 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2357 curwin->w_topline = curbuf->b_ml.ml_line_count;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2358 curwin->w_cursor.lnum = curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2359 }
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2360 else if (curwin->w_botline > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2361 {
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2362 /* at end of file */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2363 curwin->w_topline = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2364 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2365 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2366 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2367 curwin->w_valid &= ~(VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2368 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2369 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2370 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2371 /* For the overlap, start with the line just below the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2372 * and go upwards. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2373 loff.lnum = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2374 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2375 loff.fill = diff_check_fill(curwin, loff.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2376 - curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2377 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2378 get_scroll_overlap(&loff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2379 curwin->w_topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2380 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2381 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2382 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2383 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2384 curwin->w_cursor.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2385 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2386 VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2387 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2388 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2389 else /* dir == BACKWARDS */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2390 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2391 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2392 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2393 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2394 /* Include max number of filler lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2395 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2396 continue;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2397 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2398 #endif
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2399 if (firstwin == lastwin && p_window > 0 && p_window < Rows - 1)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2400 {
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2401 /* Vi compatible scrolling (sort of) */
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2402 if (p_window <= 2)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2403 --curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2404 else
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2405 curwin->w_topline -= p_window - 2;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2406 if (curwin->w_topline < 1)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2407 curwin->w_topline = 1;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2408 curwin->w_cursor.lnum = curwin->w_topline + p_window - 1;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2409 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2410 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2411 continue;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2412 }
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2413
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2414 /* Find the line at the top of the window that is going to be the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2415 * line at the bottom of the window. Make sure this results in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2416 * the same line as before doing CTRL-F. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2417 loff.lnum = curwin->w_topline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2418 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2419 loff.fill = diff_check_fill(curwin, loff.lnum + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2420 - curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2421 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2422 get_scroll_overlap(&loff, 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2423
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2424 if (loff.lnum >= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2425 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2426 loff.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2427 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2428 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2429 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2430 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2431 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2432 botline_topline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2433 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2434 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2435 curwin->w_cursor.lnum = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2436
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2437 /* Find the line just above the new topline to get the right line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2438 * at the bottom of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2439 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2440 while (n <= curwin->w_height && loff.lnum >= 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2441 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2442 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2443 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2444 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2445 if (n <= curwin->w_height) /* at begin of file */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2446 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2447 curwin->w_topline = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2448 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2449 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2450 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2451 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2452 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2453 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2454 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2455 /* Go two lines forward again. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2456 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2457 topline_botline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2458 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2459 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2460 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2461 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2462 botline_topline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2463 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2464 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2465 /* We're at the wrong end of a fold now. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2466 (void)hasFolding(loff.lnum, &loff.lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2467 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2468
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2469 /* Always scroll at least one line. Avoid getting stuck on
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2470 * very long lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2471 if (loff.lnum >= curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2472 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2473 && (loff.lnum > curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2474 || loff.fill >= curwin->w_topfill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2475 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2476 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2477 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2478 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2479 /* First try using the maximum number of filler lines. If
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2480 * that's not enough, backup one line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2481 loff.fill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2482 if (curwin->w_topfill < diff_check_fill(curwin,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2483 curwin->w_topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2484 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2485 if (curwin->w_topfill == loff.fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2486 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2487 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2488 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2489 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2490 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2491 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2492 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2493 comp_botline(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2494 curwin->w_cursor.lnum = curwin->w_botline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2495 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2496 VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2497 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2498 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2499 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2500 curwin->w_topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2501 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2502 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2503 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2504 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2505 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2506 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2507 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2508 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2509 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2510 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2511 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2512 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2513 cursor_correct();
161
6df0106fc595 updated for version 7.0049
vimboss
parents: 119
diff changeset
2514 if (retval == OK)
6df0106fc595 updated for version 7.0049
vimboss
parents: 119
diff changeset
2515 beginline(BL_SOL | BL_FIX);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2516 curwin->w_valid &= ~(VALID_WCOL|VALID_WROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2517
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2518 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2519 * Avoid the screen jumping up and down when 'scrolloff' is non-zero.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2520 * But make sure we scroll at least one line (happens with mix of long
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2521 * wrapping lines and non-wrapping line).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2522 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2523 if (retval == OK && dir == FORWARD && check_top_offset())
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2524 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2525 scroll_cursor_top(1, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2526 if (curwin->w_topline <= old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2527 && old_topline < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2528 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2529 curwin->w_topline = old_topline + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2530 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2531 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2532 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2533 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2534 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2535
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2536 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2537 return retval;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2538 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2539
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2540 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2541 * Decide how much overlap to use for page-up or page-down scrolling.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2542 * This is symmetric, so that doing both keeps the same lines displayed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2543 * Three lines are examined:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2544 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2545 * before CTRL-F after CTRL-F / before CTRL-B
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2546 * etc. l1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2547 * l1 last but one line ------------
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2548 * l2 last text line l2 top text line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2549 * ------------- l3 second text line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2550 * l3 etc.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2551 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2552 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2553 get_scroll_overlap(lp, dir)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2554 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2555 int dir;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2556 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2557 int h1, h2, h3, h4;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2558 int min_height = curwin->w_height - 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2559 lineoff_T loff0, loff1, loff2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2560
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2561 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2562 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2563 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2564 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2565 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2566 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2567 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2568 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2569 h1 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2570 if (h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2571 return; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2572
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2573 loff0 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2574 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2575 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2576 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2577 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2578 h2 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2579 if (h2 + h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2580 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2581 *lp = loff0; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2582 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2583 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2584
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2585 loff1 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2586 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2587 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2588 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2589 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2590 h3 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2591 if (h3 + h2 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2592 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2593 *lp = loff0; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2594 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2595 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2596
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2597 loff2 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2598 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2599 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2600 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2601 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2602 h4 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2603 if (h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2604 *lp = loff1; /* 1 line overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2605 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2606 *lp = loff2; /* 2 lines overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2607 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2608 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2609
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2610 /* #define KEEP_SCREEN_LINE */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2611 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2612 * Scroll 'scroll' lines up or down.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2613 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2614 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2615 halfpage(flag, Prenum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2616 int flag;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2617 linenr_T Prenum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2618 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2619 long scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2620 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2621 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2622 int room;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2623
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2624 if (Prenum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2625 curwin->w_p_scr = (Prenum > curwin->w_height) ?
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2626 curwin->w_height : Prenum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2627 n = (curwin->w_p_scr <= curwin->w_height) ?
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2628 curwin->w_p_scr : curwin->w_height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2629
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2630 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2631 room = curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2632 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2633 room += curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2634 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2635 if (flag)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2636 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2637 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2638 * scroll the text up
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2639 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2640 while (n > 0 && curwin->w_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2641 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2642 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2643 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2644 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2645 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2646 if (--n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2647 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2648 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2649 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2650 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2651 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2652 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2653 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2654 i = plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2655 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2656 i = plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2657 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2658 n -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2659 if (n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2660 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2661 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2662 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2663 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2664 ++curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2665 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2666 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2667 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2668
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2669 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2670 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2671 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2672 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2673 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2674 ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2675 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2676 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2677 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2678 curwin->w_valid &= ~(VALID_CROW|VALID_WROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2679 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2680
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2681 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2682 * Correct w_botline for changed w_topline.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2683 * Won't work when there are filler lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2684 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2685 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2686 if (curwin->w_p_diff)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2687 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2688 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2689 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2690 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2691 room += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2692 do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2693 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2694 i = plines(curwin->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2695 if (i > room)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2696 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2697 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2698 (void)hasFolding(curwin->w_botline, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2699 &curwin->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2700 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2701 ++curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2702 room -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2703 } while (curwin->w_botline <= curbuf->b_ml.ml_line_count);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2704 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2705 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2706
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2707 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2708 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2709 * When hit bottom of the file: move cursor down.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2710 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2711 if (n > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2712 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2713 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2714 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2715 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2716 while (--n >= 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2717 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2718 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2719 (void)hasFolding(curwin->w_cursor.lnum, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2720 &curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2721 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2722 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2723 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2724 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2725 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2726 curwin->w_cursor.lnum += n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2727 check_cursor_lnum();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2728 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2729 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2730 /* try to put the cursor in the same screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2731 while ((curwin->w_cursor.lnum < curwin->w_topline || scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2732 && curwin->w_cursor.lnum < curwin->w_botline - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2733 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2734 scrolled -= plines(curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2735 if (scrolled < 0 && curwin->w_cursor.lnum >= curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2736 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2737 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2738 (void)hasFolding(curwin->w_cursor.lnum, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2739 &curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2740 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2741 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2742 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2743 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2744 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2745 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2746 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2747 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2748 * scroll the text down
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2749 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2750 while (n > 0 && curwin->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2751 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2752 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2753 if (curwin->w_topfill < diff_check_fill(curwin, curwin->w_topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2754 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2755 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2756 if (--n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2757 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2758 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2759 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2760 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2761 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2762 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2763 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2764 i = plines_nofill(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2765 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2766 i = plines(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2767 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2768 n -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2769 if (n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2770 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2771 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2772 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2773 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2774 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2775 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2776 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2777 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2778 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2779 curwin->w_valid &= ~(VALID_CROW|VALID_WROW|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2780 VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2781 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2782 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2783 if (curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2784 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2785 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2786 curwin->w_valid &= ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2787 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2788 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2789 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2790 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2791 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2792 * When hit top of the file: move cursor up.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2793 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2794 if (n > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2795 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2796 if (curwin->w_cursor.lnum <= (linenr_T)n)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2797 curwin->w_cursor.lnum = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2798 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2799 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2800 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2801 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2802 while (--n >= 0 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2803 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2804 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2805 (void)hasFolding(curwin->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2806 &curwin->w_cursor.lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2807 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2808 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2809 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2810 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2811 curwin->w_cursor.lnum -= n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2812 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2813 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2814 /* try to put the cursor in the same screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2815 scrolled += n; /* move cursor when topline is 1 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2816 while (curwin->w_cursor.lnum > curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2817 && (scrolled > 0 || curwin->w_cursor.lnum >= curwin->w_botline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2818 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2819 scrolled -= plines(curwin->w_cursor.lnum - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2820 if (scrolled < 0 && curwin->w_cursor.lnum < curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2821 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2822 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2823 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2824 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2825 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2826 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2827 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2828 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2829 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2830 /* Move cursor to first line of closed fold. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2831 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2832 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2833 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2834 check_topfill(curwin, !flag);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2835 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2836 cursor_correct();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2837 beginline(BL_SOL | BL_FIX);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2838 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2839 }