annotate src/move.c @ 1980:5e0c164fc1c2 v7.2.277

updated for version 7.2-277
author vimboss
date Tue, 03 Nov 2009 15:23:14 +0000
parents b5c1cb6f8d56
children 4483ee552619
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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 > 0)
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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 curwin->w_botline = 2;
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187 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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188 #ifdef FEAT_SCROLLBIND
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189 curwin->w_scbind_pos = 1;
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190 #endif
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191 }
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192
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193 /*
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194 * If the cursor is above or near the top of the window, scroll the window
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195 * to show the line the cursor is in, with 'scrolloff' context.
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196 */
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197 else
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198 {
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199 if (curwin->w_topline > 1)
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200 {
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201 /* If the cursor is above topline, scrolling is always needed.
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202 * If the cursor is far below topline and there is no folding,
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parents:
diff changeset
203 * scrolling down is never needed. */
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parents:
diff changeset
204 if (curwin->w_cursor.lnum < curwin->w_topline)
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parents:
diff changeset
205 check_topline = TRUE;
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vimboss
parents:
diff changeset
206 else if (check_top_offset())
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parents:
diff changeset
207 check_topline = TRUE;
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parents:
diff changeset
208 }
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parents:
diff changeset
209 #ifdef FEAT_DIFF
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parents:
diff changeset
210 /* Check if there are more filler lines than allowed. */
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parents:
diff changeset
211 if (!check_topline && curwin->w_topfill > diff_check_fill(curwin,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
212 curwin->w_topline))
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parents:
diff changeset
213 check_topline = TRUE;
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parents:
diff changeset
214 #endif
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parents:
diff changeset
215
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parents:
diff changeset
216 if (check_topline)
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vimboss
parents:
diff changeset
217 {
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parents:
diff changeset
218 halfheight = curwin->w_height / 2 - 1;
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parents:
diff changeset
219 if (halfheight < 2)
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parents:
diff changeset
220 halfheight = 2;
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parents:
diff changeset
221
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parents:
diff changeset
222 #ifdef FEAT_FOLDING
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parents:
diff changeset
223 if (hasAnyFolding(curwin))
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vimboss
parents:
diff changeset
224 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
225 /* Count the number of logical lines between the cursor and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
226 * topline + p_so (approximation of how much will be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
227 * scrolled). */
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parents:
diff changeset
228 n = 0;
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parents:
diff changeset
229 for (lnum = curwin->w_cursor.lnum;
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parents:
diff changeset
230 lnum < curwin->w_topline + p_so; ++lnum)
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vimboss
parents:
diff changeset
231 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
232 ++n;
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vimboss
parents:
diff changeset
233 /* stop at end of file or when we know we are far off */
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vimboss
parents:
diff changeset
234 if (lnum >= curbuf->b_ml.ml_line_count || n >= halfheight)
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parents:
diff changeset
235 break;
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parents:
diff changeset
236 (void)hasFolding(lnum, NULL, &lnum);
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vimboss
parents:
diff changeset
237 }
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vimboss
parents:
diff changeset
238 }
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vimboss
parents:
diff changeset
239 else
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vimboss
parents:
diff changeset
240 #endif
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parents:
diff changeset
241 n = curwin->w_topline + p_so - curwin->w_cursor.lnum;
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parents:
diff changeset
242
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vimboss
parents:
diff changeset
243 /* If we weren't very close to begin with, we scroll to put the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
244 * cursor in the middle of the window. Otherwise put the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
245 * near the top of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
246 if (n >= halfheight)
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parents:
diff changeset
247 scroll_cursor_halfway(FALSE);
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vimboss
parents:
diff changeset
248 else
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vimboss
parents:
diff changeset
249 {
532
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parents: 164
diff changeset
250 scroll_cursor_top(scrolljump_value(), FALSE);
7
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parents:
diff changeset
251 check_botline = TRUE;
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vimboss
parents:
diff changeset
252 }
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vimboss
parents:
diff changeset
253 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
254
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
255 else
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vimboss
parents:
diff changeset
256 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
257 #ifdef FEAT_FOLDING
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parents:
diff changeset
258 /* Make sure topline is the first line of a fold. */
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parents:
diff changeset
259 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
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vimboss
parents:
diff changeset
260 #endif
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vimboss
parents:
diff changeset
261 check_botline = TRUE;
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vimboss
parents:
diff changeset
262 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
263 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
264
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
265 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
266 * If the cursor is below the bottom of the window, scroll the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
267 * to put the cursor on the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
268 * When w_botline is invalid, recompute it first, to avoid a redraw later.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
269 * If w_botline was approximated, we might need a redraw later in a few
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
270 * cases, but we don't want to spend (a lot of) time recomputing w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
271 * for every small change.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
272 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
273 if (check_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
274 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
275 if (!(curwin->w_valid & VALID_BOTLINE_AP))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
276 validate_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_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
279 {
1744
feb9b4215853 updated for version 7.2-042
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parents: 1668
diff changeset
280 if (curwin->w_cursor.lnum < curwin->w_botline)
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vimboss
parents: 1668
diff changeset
281 {
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
282 if (((long)curwin->w_cursor.lnum
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
283 >= (long)curwin->w_botline - p_so
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
284 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
285 || hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
286 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
287 ))
1744
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
288 {
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
289 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
290
1744
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
291 /* Cursor is (a few lines) above botline, check if there are
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
292 * 'scrolloff' window lines below the cursor. If not, need to
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
293 * scroll. */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
294 n = curwin->w_empty_rows;
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vimboss
parents:
diff changeset
295 loff.lnum = curwin->w_cursor.lnum;
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vimboss
parents:
diff changeset
296 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
297 /* In a fold go to its last line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
298 (void)hasFolding(loff.lnum, NULL, &loff.lnum);
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vimboss
parents:
diff changeset
299 #endif
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vimboss
parents:
diff changeset
300 #ifdef FEAT_DIFF
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vimboss
parents:
diff changeset
301 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
302 n += curwin->w_filler_rows;
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vimboss
parents:
diff changeset
303 #endif
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vimboss
parents:
diff changeset
304 loff.height = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
305 while (loff.lnum < curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
306 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
307 && (loff.lnum + 1 < curwin->w_botline || loff.fill == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
308 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
309 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
310 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
311 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
312 if (n >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
313 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
314 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
315 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
316 if (n >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
317 /* sufficient context, no need to scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
318 check_botline = FALSE;
1744
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
319 }
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
320 else
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
321 /* sufficient context, no need to scroll */
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
322 check_botline = FALSE;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
323 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
324 if (check_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
325 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
326 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
327 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
328 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
329 /* Count the number of logical lines between the cursor and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
330 * botline - p_so (approximation of how much will be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
331 * scrolled). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
332 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
333 for (lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
334 lnum >= curwin->w_botline - p_so; --lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
335 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
336 ++line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
337 /* stop at end of file or when we know we are far off */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
338 if (lnum <= 0 || line_count > curwin->w_height + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
339 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
340 (void)hasFolding(lnum, &lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
341 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
342 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
343 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
344 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
345 line_count = curwin->w_cursor.lnum - curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
346 + 1 + p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
347 if (line_count <= curwin->w_height + 1)
532
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
348 scroll_cursor_bot(scrolljump_value(), FALSE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
349 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
350 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
351 }
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 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
355
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
356 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
357 * Need to redraw when topline changed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
358 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
359 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
360 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
361 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
362 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
363 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
364 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
365 dollar_vcol = 0;
740
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
366 if (curwin->w_skipcol != 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
367 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
368 curwin->w_skipcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
369 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
370 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
371 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
372 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
373 /* May need to set w_skipcol when cursor in w_topline. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
374 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
375 validate_cursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
376 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
377
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
378 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
379 p_so = save_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
380 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
381 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
382
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
383 /*
532
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
384 * Return the scrolljump value to use for the current window.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
385 * When 'scrolljump' is positive use it as-is.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
386 * When 'scrolljump' is negative use it as a percentage of the window height.
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
387 */
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
388 static int
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
389 scrolljump_value()
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
390 {
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
391 if (p_sj >= 0)
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
392 return (int)p_sj;
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
393 return (curwin->w_height * -p_sj) / 100;
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
394 }
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
395
7052f11a3dc9 updated for version 7.0150
vimboss
parents: 164
diff changeset
396 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
397 * Return TRUE when there are not 'scrolloff' lines above the cursor for the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
398 * current window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
399 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
400 static int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
401 check_top_offset()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
402 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
403 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
404 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
405
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
406 if (curwin->w_cursor.lnum < curwin->w_topline + p_so
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
407 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
408 || hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
409 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
410 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
411 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
412 loff.lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
413 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
414 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
415 n = curwin->w_topfill; /* always have this context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
416 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
417 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
418 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
419 /* Count the visible screen lines above the cursor line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
420 while (n < p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
421 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
422 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
423 /* Stop when included a line above the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
424 if (loff.lnum < curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
425 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
426 || (loff.lnum == curwin->w_topline && loff.fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
427 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
428 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
429 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
430 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
431 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
432 if (n < p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
433 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
434 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
435 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
436 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
437
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
438 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
439 update_curswant()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
440 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
441 if (curwin->w_set_curswant)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
442 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
443 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
444 curwin->w_curswant = curwin->w_virtcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
445 curwin->w_set_curswant = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
446 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
447 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
448
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
449 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
450 * Check if the cursor has moved. Set the w_valid flag accordingly.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
451 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
452 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
453 check_cursor_moved(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
454 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
455 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
456 if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
457 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
458 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
459 |VALID_CHEIGHT|VALID_CROW|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
460 wp->w_valid_cursor = wp->w_cursor;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
461 wp->w_valid_leftcol = wp->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
462 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
463 else if (wp->w_cursor.col != wp->w_valid_cursor.col
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
464 || wp->w_leftcol != wp->w_valid_leftcol
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
465 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
466 || wp->w_cursor.coladd != wp->w_valid_cursor.coladd
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
467 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
468 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
469 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
470 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
471 wp->w_valid_cursor.col = wp->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
472 wp->w_valid_leftcol = wp->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
473 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
474 wp->w_valid_cursor.coladd = wp->w_cursor.coladd;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
475 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
476 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
477 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
478
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
479 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
480 * Call this function when some window settings have changed, which require
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
481 * the cursor position, botline and topline to be recomputed and the window to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
482 * be redrawn. E.g, when changing the 'wrap' option or folding.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
483 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
484 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
485 changed_window_setting()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
486 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
487 changed_window_setting_win(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
488 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
489
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
490 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
491 changed_window_setting_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
492 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
493 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
494 wp->w_lines_valid = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
495 changed_line_abv_curs_win(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
496 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
497 redraw_win_later(wp, NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
498 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
499
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
500 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
501 * Set wp->w_topline to a certain number.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
502 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
503 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
504 set_topline(wp, lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
505 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
506 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
507 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
508 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
509 /* go to first of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
510 (void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
511 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
512 /* Approximate the value of w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
513 wp->w_botline += lnum - wp->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
514 wp->w_topline = lnum;
1744
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
515 #ifdef FEAT_AUTOCMD
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
516 wp->w_topline_was_set = TRUE;
feb9b4215853 updated for version 7.2-042
vimboss
parents: 1668
diff changeset
517 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
518 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
519 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
520 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
521 wp->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
522 /* Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
523 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
524 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
525
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
526 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
527 * Call this function when the length of the cursor line (in screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
528 * characters) has changed, and the change is before the cursor.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
529 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
530 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
531 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
532 changed_cline_bef_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
533 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
534 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
535 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
536 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
537
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
538 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
539 changed_cline_bef_curs_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
540 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
541 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
542 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
543 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
544 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
545
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
546 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
547 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
548 * Call this function when the length of the cursor line (in screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
549 * characters) has changed, and the position of the cursor doesn't change.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
550 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
551 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
552 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
553 changed_cline_aft_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
554 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
555 curwin->w_valid &= ~VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
556 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
557 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
558
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
559 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
560 * Call this function when the length of a line (in screen characters) above
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
561 * the cursor have changed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
562 * Need to take care of w_botline separately!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
563 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
564 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
565 changed_line_abv_curs()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
566 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
567 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
568 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
569 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
570
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
571 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
572 changed_line_abv_curs_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
573 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
574 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
575 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
576 |VALID_CHEIGHT|VALID_TOPLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
577 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
578
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
579 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
580 * Make sure the value of curwin->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
581 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
582 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
583 validate_botline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
584 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
585 if (!(curwin->w_valid & VALID_BOTLINE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
586 comp_botline(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
587 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
588
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
589 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
590 * Make sure the value of wp->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
591 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
592 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
593 validate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
594 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
595 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
596 if (!(wp->w_valid & VALID_BOTLINE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
597 comp_botline(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
598 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
599
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
600 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
601 * Mark curwin->w_botline as invalid (because of some change in the buffer).
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()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
605 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
606 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
607 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
608
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
609 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
610 invalidate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
611 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
612 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
613 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
614 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
615
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
616 #if 0 /* never used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
617 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
618 * Mark curwin->w_botline as approximated (because of some small change in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
619 * buffer).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
620 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
621 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
622 approximate_botline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
623 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
624 curwin->w_valid &= ~VALID_BOTLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
625 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
626 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
627
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
628 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
629 approximate_botline_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
630 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
631 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
632 wp->w_valid &= ~VALID_BOTLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
633 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
634
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
635 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
636 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
637 * Return TRUE if curwin->w_botline is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
638 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
639 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
640 botline_valid()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
641 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
642 return (curwin->w_valid & VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
643 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
644 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
645
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
646 #if 0 /* not used */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
647 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
648 * Return TRUE if curwin->w_botline is valid or approximated.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
649 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
650 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
651 botline_approximated()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
652 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
653 return (curwin->w_valid & VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
654 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
655 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
656
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
657 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
658 * Return TRUE if curwin->w_wrow and curwin->w_wcol are valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
659 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
660 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
661 cursor_valid()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
662 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
663 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
664 return ((curwin->w_valid & (VALID_WROW|VALID_WCOL)) ==
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
665 (VALID_WROW|VALID_WCOL));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
666 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
667
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
668 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
669 * Validate cursor position. Makes sure w_wrow and w_wcol are valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
670 * w_topline must be valid, you may need to call update_topline() first!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
671 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
672 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
673 validate_cursor()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
674 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
675 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
676 if ((curwin->w_valid & (VALID_WCOL|VALID_WROW)) != (VALID_WCOL|VALID_WROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
677 curs_columns(TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
678 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
679
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
680 #if defined(FEAT_GUI) || defined(PROTO)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
681 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
682 * validate w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
683 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
684 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
685 validate_cline_row()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
686 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
687 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
688 * First make sure that w_topline is valid (after moving the cursor).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
689 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
690 update_topline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
691 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
692 if (!(curwin->w_valid & VALID_CROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
693 curs_rows(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
694 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
695 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
696
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
697 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
698 * 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
699 * of wp->w_topine.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
700 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
701 * Returns OK when cursor is in the window, FAIL when it isn't.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
702 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
703 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
704 curs_rows(wp, do_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
705 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
706 int do_botline; /* also compute w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
707 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
708 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
709 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
710 int all_invalid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
711 int valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
712 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
713 long fold_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
714 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
715
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
716 /* Check if wp->w_lines[].wl_size is invalid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
717 all_invalid = (!redrawing()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
718 || wp->w_lines_valid == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
719 || wp->w_lines[0].wl_lnum > wp->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
720 i = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
721 wp->w_cline_row = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
722 for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
723 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
724 valid = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
725 if (!all_invalid && i < wp->w_lines_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
726 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
727 if (wp->w_lines[i].wl_lnum < lnum || !wp->w_lines[i].wl_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
728 continue; /* skip changed or deleted lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
729 if (wp->w_lines[i].wl_lnum == lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
730 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
731 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
732 /* Check for newly inserted lines below this row, in which
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
733 * case we need to check for folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
734 if (!wp->w_buffer->b_mod_set
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
735 || wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
736 || wp->w_buffer->b_mod_top
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
737 > wp->w_lines[i].wl_lastlnum + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
738 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
739 valid = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
740 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
741 else if (wp->w_lines[i].wl_lnum > lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
742 --i; /* hold at inserted lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
743 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
744 if (valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
745 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
746 && (lnum != wp->w_topline || !wp->w_p_diff)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
747 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
748 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
749 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
750 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
751 lnum = wp->w_lines[i].wl_lastlnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
752 /* Cursor inside folded lines, don't count this row */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
753 if (lnum > wp->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
754 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
755 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
756 ++lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
757 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
758 wp->w_cline_row += wp->w_lines[i].wl_size;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
759 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
760 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
761 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
762 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
763 fold_count = foldedCount(wp, lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
764 if (fold_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
765 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
766 lnum += fold_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
767 if (lnum > wp->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
768 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
769 ++wp->w_cline_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
770 }
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 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
774 if (lnum == wp->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
775 wp->w_cline_row += plines_win_nofill(wp, lnum++, TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
776 + wp->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
777 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
778 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
779 wp->w_cline_row += plines_win(wp, lnum++, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
780 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
781 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
782
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
783 check_cursor_moved(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
784 if (!(wp->w_valid & VALID_CHEIGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
785 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
786 if (all_invalid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
787 || i == wp->w_lines_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
788 || (i < wp->w_lines_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
789 && (!wp->w_lines[i].wl_valid
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
790 || wp->w_lines[i].wl_lnum != wp->w_cursor.lnum)))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
791 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
792 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
793 if (wp->w_cursor.lnum == wp->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
794 wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
795 TRUE) + wp->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
796 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
797 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
798 wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
799 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
800 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
801 NULL, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
802 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
803 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
804 else if (i > wp->w_lines_valid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
805 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
806 /* a line that is too long to fit on the last screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
807 wp->w_cline_height = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
808 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
809 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
810 NULL, NULL, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
811 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
812 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
813 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
814 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
815 wp->w_cline_height = wp->w_lines[i].wl_size;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
816 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
817 wp->w_cline_folded = wp->w_lines[i].wl_folded;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
818 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
819 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
820 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
821
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
822 wp->w_valid |= VALID_CROW|VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
823
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
824 /* validate botline too, if update_screen doesn't do it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
825 if (do_botline && all_invalid)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
826 validate_botline_win(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
827 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
828
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
829 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
830 * Validate curwin->w_virtcol only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
831 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
832 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
833 validate_virtcol()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
834 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
835 validate_virtcol_win(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
836 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
837
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
838 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
839 * Validate wp->w_virtcol only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
840 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
841 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
842 validate_virtcol_win(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
843 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
844 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
845 check_cursor_moved(wp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
846 if (!(wp->w_valid & VALID_VIRTCOL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
847 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
848 getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
849 wp->w_valid |= VALID_VIRTCOL;
740
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
850 #ifdef FEAT_SYN_HL
752
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
851 if (wp->w_p_cuc
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
852 # ifdef FEAT_INS_EXPAND
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
853 && !pum_visible()
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
854 # endif
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
855 )
740
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
856 redraw_win_later(wp, SOME_VALID);
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
857 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
858 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
859 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
860
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
861 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
862 * Validate curwin->w_cline_height only.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
863 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
864 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
865 validate_cheight()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
866 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
867 check_cursor_moved(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
868 if (!(curwin->w_valid & VALID_CHEIGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
869 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
870 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
871 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
872 curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
873 + curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
874 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
875 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
876 curwin->w_cline_height = plines(curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
877 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
878 curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
879 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
880 curwin->w_valid |= VALID_CHEIGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
881 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
882 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
883
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
884 /*
1668
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
885 * Validate w_wcol and w_virtcol only.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
886 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
887 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
888 validate_cursor_col()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
889 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
890 colnr_T off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
891 colnr_T col;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
892
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
893 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
894 if (!(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 col = curwin->w_virtcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
897 off = curwin_col_off();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
898 col += off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
899
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
900 /* long line wrapping, adjust curwin->w_wrow */
1668
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
901 if (curwin->w_p_wrap
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
902 && col >= (colnr_T)W_WIDTH(curwin)
119
e8f07016e34d updated for version 7.0042
vimboss
parents: 36
diff changeset
903 && W_WIDTH(curwin) - off + curwin_col_off2() > 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
904 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
905 col -= W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
906 col = col % (W_WIDTH(curwin) - off + curwin_col_off2());
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
907 }
1668
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
908 if (col > (int)curwin->w_leftcol)
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
909 col -= curwin->w_leftcol;
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
910 else
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
911 col = 0;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
912 curwin->w_wcol = col;
1668
0b796e045c42 updated for version 7.2b-000
vimboss
parents: 1121
diff changeset
913
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
914 curwin->w_valid |= VALID_WCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
915 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
916 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
917
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
918 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
919 * Compute offset of a window, occupied by line number, fold column and sign
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
920 * column (these don't move when scrolling horizontally).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
921 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
922 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
923 win_col_off(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
924 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
925 {
13
24d5189d3956 updated for version 7.0005
vimboss
parents: 7
diff changeset
926 return ((wp->w_p_nu ? number_width(wp) + 1 : 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
927 #ifdef FEAT_CMDWIN
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
928 + (cmdwin_type == 0 || wp != curwin ? 0 : 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
929 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
930 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
931 + wp->w_p_fdc
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
932 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
933 #ifdef FEAT_SIGNS
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
934 + (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
935 # ifdef FEAT_NETBEANS_INTG
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
936 /* always show glyph gutter in netbeans */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
937 usingNetbeans ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
938 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
939 wp->w_buffer->b_signlist != NULL ? 2 : 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
940 #endif
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
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
944 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
945 curwin_col_off()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
946 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
947 return win_col_off(curwin);
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 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
951 * Return the difference in column offset for the second screen line of a
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
952 * wrapped line. It's 8 if 'number' is on and 'n' is in 'cpoptions'.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
953 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
954 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
955 win_col_off2(wp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
956 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
957 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
958 if (wp->w_p_nu && vim_strchr(p_cpo, CPO_NUMCOL) != NULL)
13
24d5189d3956 updated for version 7.0005
vimboss
parents: 7
diff changeset
959 return number_width(wp) + 1;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
960 return 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
961 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
962
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
963 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
964 curwin_col_off2()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
965 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
966 return win_col_off2(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
967 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
968
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
969 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
970 * compute curwin->w_wcol and curwin->w_virtcol.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
971 * Also updates curwin->w_wrow and curwin->w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
972 * Also updates curwin->w_leftcol.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
973 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
974 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
975 curs_columns(scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
976 int scroll; /* when TRUE, may scroll horizontally */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
977 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
978 int diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
979 int extra; /* offset for first screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
980 int off_left, off_right;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
981 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
982 int p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
983 int width = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
984 int textwidth;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
985 int new_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
986 colnr_T startcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
987 colnr_T endcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
988 colnr_T prev_skipcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
989
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
990 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
991 * First make sure that w_topline is valid (after moving the cursor).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
992 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
993 update_topline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
994
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
995 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
996 * Next make sure that w_cline_row is valid.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
997 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
998 if (!(curwin->w_valid & VALID_CROW))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
999 curs_rows(curwin, FALSE);
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 * Compute the number of virtual columns.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1003 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1004 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1005 if (curwin->w_cline_folded)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1006 /* In a folded line the cursor is always in the first column */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1007 startcol = curwin->w_virtcol = endcol = curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1008 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1009 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1010 getvvcol(curwin, &curwin->w_cursor,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1011 &startcol, &(curwin->w_virtcol), &endcol);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1012
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1013 /* remove '$' from change command when cursor moves onto it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1014 if (startcol > dollar_vcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1015 dollar_vcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1016
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1017 extra = curwin_col_off();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1018 curwin->w_wcol = curwin->w_virtcol + extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1019 endcol += extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1020
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1021 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1022 * Now compute w_wrow, counting screen lines from w_cline_row.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1023 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1024 curwin->w_wrow = curwin->w_cline_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1025
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1026 textwidth = W_WIDTH(curwin) - extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1027 if (textwidth <= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1028 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1029 /* No room for text, put cursor in last char of window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1030 curwin->w_wcol = W_WIDTH(curwin) - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1031 curwin->w_wrow = curwin->w_height - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1032 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1033 else if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1034 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1035 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1036 #endif
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 width = textwidth + curwin_col_off2();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1040
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1041 /* long line wrapping, adjust curwin->w_wrow */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1042 if (curwin->w_wcol >= W_WIDTH(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1043 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1044 n = (curwin->w_wcol - W_WIDTH(curwin)) / width + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1045 curwin->w_wcol -= n * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1046 curwin->w_wrow += n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1047
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1048 #ifdef FEAT_LINEBREAK
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1049 /* When cursor wraps to first char of next line in Insert
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1050 * mode, the 'showbreak' string isn't shown, backup to first
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1051 * column */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1052 if (*p_sbr && *ml_get_cursor() == NUL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1053 && curwin->w_wcol == (int)vim_strsize(p_sbr))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1054 curwin->w_wcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1055 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1056 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1057 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1058
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1059 /* No line wrapping: compute curwin->w_leftcol if scrolling is on and line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1060 * is not folded.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1061 * If scrolling is off, curwin->w_leftcol is assumed to be 0 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1062 else if (scroll
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1063 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1064 && !curwin->w_cline_folded
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1065 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1066 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1067 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1068 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1069 * If Cursor is left of the screen, scroll rightwards.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1070 * If Cursor is right of the screen, scroll leftwards
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1071 * If we get closer to the edge than 'sidescrolloff', scroll a little
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1072 * extra
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1073 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1074 off_left = (int)startcol - (int)curwin->w_leftcol - p_siso;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1075 off_right = (int)endcol - (int)(curwin->w_leftcol + W_WIDTH(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1076 - p_siso) + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1077 if (off_left < 0 || off_right > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1078 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1079 if (off_left < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1080 diff = -off_left;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1081 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1082 diff = off_right;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1083
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1084 /* When far off or not enough room on either side, put cursor in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1085 * middle of window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1086 if (p_ss == 0 || diff >= textwidth / 2 || off_right >= off_left)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1087 new_leftcol = curwin->w_wcol - extra - textwidth / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1088 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1089 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1090 if (diff < p_ss)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1091 diff = p_ss;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1092 if (off_left < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1093 new_leftcol = curwin->w_leftcol - diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1094 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1095 new_leftcol = curwin->w_leftcol + diff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1096 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1097 if (new_leftcol < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1098 new_leftcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1099 if (new_leftcol != (int)curwin->w_leftcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1100 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1101 curwin->w_leftcol = new_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1102 /* screen has to be redrawn with new curwin->w_leftcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1103 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1104 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1105 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1106 curwin->w_wcol -= curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1107 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1108 else if (curwin->w_wcol > (int)curwin->w_leftcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1109 curwin->w_wcol -= curwin->w_leftcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1110 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1111 curwin->w_wcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1112
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1113 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1114 /* Skip over filler lines. At the top use w_topfill, there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1115 * may be some filler lines above the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1116 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1117 curwin->w_wrow += curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1118 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1119 curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1120 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1121
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1122 prev_skipcol = curwin->w_skipcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1123
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1124 p_lines = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1125 if ((curwin->w_wrow >= curwin->w_height
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1126 || ((prev_skipcol > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1127 || curwin->w_wrow + p_so >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1128 && (p_lines =
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1129 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1130 plines_win_nofill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1131 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1132 plines_win
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1133 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1134 (curwin, curwin->w_cursor.lnum, FALSE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1135 - 1 >= curwin->w_height))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1136 && curwin->w_height != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1137 && curwin->w_cursor.lnum == curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1138 && width > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1139 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1140 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1141 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1142 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1143 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1144 /* Cursor past end of screen. Happens with a single line that does
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1145 * not fit on screen. Find a skipcol to show the text around the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1146 * cursor. Avoid scrolling all the time. compute value of "extra":
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1147 * 1: Less than "p_so" lines above
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1148 * 2: Less than "p_so" lines below
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1149 * 3: both of them */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1150 extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1151 if (curwin->w_skipcol + p_so * width > curwin->w_virtcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1152 extra = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1153 /* Compute last display line of the buffer line that we want at the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1154 * bottom of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1155 if (p_lines == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1156 p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1157 --p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1158 if (p_lines > curwin->w_wrow + p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1159 n = curwin->w_wrow + p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1160 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1161 n = p_lines;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1162 if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1163 extra += 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1164
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1165 if (extra == 3 || p_lines < p_so * 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1166 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1167 /* not enough room for 'scrolloff', put cursor in the middle */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1168 n = curwin->w_virtcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1169 if (n > curwin->w_height / 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1170 n -= curwin->w_height / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1171 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1172 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1173 /* don't skip more than necessary */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1174 if (n > p_lines - curwin->w_height + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1175 n = p_lines - curwin->w_height + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1176 curwin->w_skipcol = n * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1177 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1178 else if (extra == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1179 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1180 /* less then 'scrolloff' lines above, decrease skipcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1181 extra = (curwin->w_skipcol + p_so * width - curwin->w_virtcol
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1182 + width - 1) / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1183 if (extra > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1184 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1185 if ((colnr_T)(extra * width) > curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1186 extra = curwin->w_skipcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1187 curwin->w_skipcol -= extra * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1188 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1189 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1190 else if (extra == 2)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1191 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1192 /* less then 'scrolloff' lines below, increase skipcol */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1193 endcol = (n - curwin->w_height + 1) * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1194 while (endcol > curwin->w_virtcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1195 endcol -= width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1196 if (endcol > curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1197 curwin->w_skipcol = endcol;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1198 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1199
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1200 curwin->w_wrow -= curwin->w_skipcol / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1201 if (curwin->w_wrow >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1202 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1203 /* small window, make sure cursor is in it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1204 extra = curwin->w_wrow - curwin->w_height + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1205 curwin->w_skipcol += extra * width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1206 curwin->w_wrow -= extra;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1207 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1208
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1209 extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1210 if (extra > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1211 win_ins_lines(curwin, 0, extra, FALSE, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1212 else if (extra < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1213 win_del_lines(curwin, 0, -extra, FALSE, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1214 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1215 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1216 curwin->w_skipcol = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1217 if (prev_skipcol != curwin->w_skipcol)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1218 redraw_later(NOT_VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1219
740
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1220 #ifdef FEAT_SYN_HL
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1221 /* Redraw when w_virtcol changes and 'cursorcolumn' is set, or when w_row
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1222 * changes and 'cursorline' is set. */
752
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1223 if (((curwin->w_p_cuc && (curwin->w_valid & VALID_VIRTCOL) == 0)
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1224 || (curwin->w_p_cul && (curwin->w_valid & VALID_WROW) == 0))
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1225 # ifdef FEAT_INS_EXPAND
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1226 && !pum_visible()
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1227 # endif
7a6368b8edf6 updated for version 7.0223
vimboss
parents: 740
diff changeset
1228 )
740
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1229 redraw_later(SOME_VALID);
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1230 #endif
614e9af68eaa updated for version 7.0222
vimboss
parents: 532
diff changeset
1231
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1232 curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1233 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1234
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1235 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1236 * Scroll the current window down by "line_count" logical lines. "CTRL-Y"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1237 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1238 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1239 scrolldown(line_count, byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1240 long line_count;
1877
b5c1cb6f8d56 updated for version 7.2-174
vimboss
parents: 1744
diff changeset
1241 int byfold UNUSED; /* TRUE: count a closed fold as one line */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1242 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1243 long done = 0; /* total # of physical lines done */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1244 int wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1245 int moved = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1246
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1247 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1248 linenr_T first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1249
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1250 /* Make sure w_topline is at the first of a sequence of folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1251 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1252 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1253 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1254 while (line_count-- > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1255 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1256 #ifdef FEAT_DIFF
1980
5e0c164fc1c2 updated for version 7.2-277
vimboss
parents: 1877
diff changeset
1257 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)
5e0c164fc1c2 updated for version 7.2-277
vimboss
parents: 1877
diff changeset
1258 && curwin->w_topfill < curwin->w_height - 1)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1259 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1260 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1261 ++done;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1262 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1263 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1264 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1265 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1266 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1267 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1268 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1269 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1270 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1271 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1272 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1273 /* A sequence of folded lines only counts for one logical line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1274 if (hasFolding(curwin->w_topline, &first, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1275 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1276 ++done;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1277 if (!byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1278 line_count -= curwin->w_topline - first - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1279 curwin->w_botline -= curwin->w_topline - first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1280 curwin->w_topline = first;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1281 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1282 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1283 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1284 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1285 done += plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1286 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1287 done += plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1288 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1289 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1290 --curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1291 invalidate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1292 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1293 curwin->w_wrow += done; /* keep w_wrow updated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1294 curwin->w_cline_row += done; /* keep w_cline_row updated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1295
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1296 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1297 if (curwin->w_cursor.lnum == curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1298 curwin->w_cline_row = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1299 check_topfill(curwin, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1300 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1301
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1302 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1303 * Compute the row number of the last row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1304 * and move the cursor onto the displayed part of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1305 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1306 wrow = curwin->w_wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1307 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1308 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1309 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1310 #endif
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 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1314 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1315 wrow += curwin->w_cline_height - 1 -
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1316 curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1317 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1318 while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1319 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1320 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1321 if (hasFolding(curwin->w_cursor.lnum, &first, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1322 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1323 --wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1324 if (first == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1325 curwin->w_cursor.lnum = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1326 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1327 curwin->w_cursor.lnum = first - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1328 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1329 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1330 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1331 wrow -= plines(curwin->w_cursor.lnum--);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1332 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1333 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1334 moved = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1335 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1336 if (moved)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1337 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1338 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1339 /* Move cursor to first line of closed fold. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1340 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1341 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1342 coladvance(curwin->w_curswant);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1343 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1344 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1345
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1346 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1347 * Scroll the current window up by "line_count" logical lines. "CTRL-E"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1348 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1349 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1350 scrollup(line_count, byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1351 long line_count;
1877
b5c1cb6f8d56 updated for version 7.2-174
vimboss
parents: 1744
diff changeset
1352 int byfold UNUSED; /* TRUE: count a closed fold as one line */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1353 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1354 #if defined(FEAT_FOLDING) || defined(FEAT_DIFF)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1355 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1356
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1357 if (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1358 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1359 (byfold && hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1360 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1361 ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1362 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1363 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1364 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1365 curwin->w_p_diff
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1366 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1367 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1368 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1369 /* count each sequence of folded lines as one logical line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1370 lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1371 while (line_count--)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1372 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1373 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1374 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1375 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1376 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1377 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1378 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1379 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1380 if (byfold)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1381 (void)hasFolding(lnum, NULL, &lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1382 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1383 if (lnum >= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1384 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1385 ++lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1386 # ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1387 curwin->w_topfill = diff_check_fill(curwin, lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1388 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1389 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1390 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1391 /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1392 curwin->w_botline += lnum - curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1393 curwin->w_topline = lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1394 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1395 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1396 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1397 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1398 curwin->w_topline += line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1399 curwin->w_botline += line_count; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1400 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1401
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1402 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1403 curwin->w_topline = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1404 if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1405 curwin->w_botline = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1406
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1407 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1408 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1409 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1410
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1411 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1412 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1413 /* Make sure w_topline is at the first of a sequence of folded lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1414 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1415 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1416
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1417 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1418 if (curwin->w_cursor.lnum < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1419 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1420 curwin->w_cursor.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1421 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1422 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1423 coladvance(curwin->w_curswant);
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 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1428 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1429 * Don't end up with too many filler lines in the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1430 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1431 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1432 check_topfill(wp, down)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1433 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1434 int down; /* when TRUE scroll down when not enough space */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1435 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1436 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1437
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1438 if (wp->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1439 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1440 n = plines_win_nofill(wp, wp->w_topline, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1441 if (wp->w_topfill + n > wp->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1442 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1443 if (down && wp->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1444 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1445 --wp->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1446 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1447 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1448 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1449 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1450 wp->w_topfill = wp->w_height - n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1451 if (wp->w_topfill < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1452 wp->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1453 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1454 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1455 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1456 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1457
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1458 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1459 * Use as many filler lines as possible for w_topline. Make sure w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1460 * is still visible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1461 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1462 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1463 max_topfill()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1464 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1465 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1466
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1467 n = plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1468 if (n >= curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1469 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1470 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1471 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1472 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1473 if (curwin->w_topfill + n > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1474 curwin->w_topfill = curwin->w_height - n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1475 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1476 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1477 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1478
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1479 #if defined(FEAT_INS_EXPAND) || defined(PROTO)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1480 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1481 * 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
1482 * cursor off the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1483 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1484 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1485 scrolldown_clamp()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1486 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1487 int end_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1488 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1489 int can_fill = (curwin->w_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1490 < diff_check_fill(curwin, curwin->w_topline));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1491 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1492
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1493 if (curwin->w_topline <= 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1494 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1495 && !can_fill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1496 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1497 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1498 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1499
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1500 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1501
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1502 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1503 * Compute the row number of the last row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1504 * and make sure it doesn't go off the screen. Make sure the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1505 * doesn't go past 'scrolloff' lines from the screen end.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1506 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1507 end_row = curwin->w_wrow;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1508 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1509 if (can_fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1510 ++end_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1511 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1512 end_row += plines_nofill(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1513 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1514 end_row += plines(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1515 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1516 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1517 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1518 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1519 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1520 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1521 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1522 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1523 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1524 end_row += curwin->w_cline_height - 1 -
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1525 curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1526 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1527 if (end_row < curwin->w_height - p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1528 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1529 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1530 if (can_fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1531 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1532 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1533 check_topfill(curwin, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1534 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1535 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1536 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1537 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1538 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1539 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1540 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1541 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1542 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1543 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1544 hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1545 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1546 --curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1547 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1548 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1549 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1550
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1551 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1552 * 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
1553 * off the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1554 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1555 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1556 scrollup_clamp()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1557 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1558 int start_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1559
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1560 if (curwin->w_topline == curbuf->b_ml.ml_line_count
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1561 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1562 && curwin->w_topfill == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1563 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1564 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1565 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1566
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1567 validate_cursor(); /* w_wrow needs to be valid */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1568
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1569 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1570 * Compute the row number of the first row of the cursor line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1571 * and make sure it doesn't go off the screen. Make sure the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1572 * doesn't go before 'scrolloff' lines from the screen start.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1573 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1574 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1575 start_row = curwin->w_wrow - plines_nofill(curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1576 - curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1577 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1578 start_row = curwin->w_wrow - plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1579 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1580 if (curwin->w_p_wrap
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1581 #ifdef FEAT_VERTSPLIT
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1582 && curwin->w_width != 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1583 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1584 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1585 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1586 validate_virtcol();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1587 start_row -= curwin->w_virtcol / W_WIDTH(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1588 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1589 if (start_row >= p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1590 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1591 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1592 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1593 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1594 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1595 #endif
36
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1596 {
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1597 #ifdef FEAT_FOLDING
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1598 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1599 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1600 ++curwin->w_topline;
36
125e80798a85 updated for version 7.0021
vimboss
parents: 13
diff changeset
1601 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1602 ++curwin->w_botline; /* approximate w_botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1603 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1604 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1605 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1606 #endif /* FEAT_INS_EXPAND */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1607
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1608 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1609 * 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
1610 * a (wrapped) text line. Uses and sets "lp->fill".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1611 * Returns the height of the added line in "lp->height".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1612 * Lines above the first one are incredibly high.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1613 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1614 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1615 topline_back(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1616 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1617 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1618 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1619 if (lp->fill < diff_check_fill(curwin, lp->lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1620 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1621 /* Add a filler line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1622 ++lp->fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1623 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1624 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1625 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1626 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1627 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1628 --lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1629 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1630 lp->fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1631 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1632 if (lp->lnum < 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1633 lp->height = MAXCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1634 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1635 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1636 if (hasFolding(lp->lnum, &lp->lnum, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1637 /* Add a closed fold */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1638 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1639 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1640 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1641 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1642 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1643 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1644 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1645 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1646 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1647 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1648 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1649 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1650
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1651 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1652 * 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
1653 * a (wrapped) text line. Uses and sets "lp->fill".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1654 * Returns the height of the added line in "lp->height".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1655 * Lines below the last one are incredibly high.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1656 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1657 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1658 botline_forw(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1659 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1660 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1661 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1662 if (lp->fill < diff_check_fill(curwin, lp->lnum + 1))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1663 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1664 /* Add a filler line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1665 ++lp->fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1666 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1667 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1668 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1669 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1670 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1671 ++lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1672 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1673 lp->fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1674 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1675 if (lp->lnum > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1676 lp->height = MAXCOL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1677 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1678 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1679 if (hasFolding(lp->lnum, NULL, &lp->lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1680 /* Add a closed fold */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1681 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1682 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1683 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1684 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1685 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1686 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1687 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1688 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1689 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1690 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1691 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1692 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1693
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1694 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1695 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1696 * Switch from including filler lines below lp->lnum to including filler
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1697 * lines above loff.lnum + 1. This keeps pointing to the same line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1698 * When there are no filler lines nothing changes.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1699 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1700 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1701 botline_topline(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1702 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1703 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1704 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1705 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1706 ++lp->lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1707 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1708 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1709 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1710
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1711 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1712 * Switch from including filler lines above lp->lnum to including filler
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1713 * lines below loff.lnum - 1. This keeps pointing to the same line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1714 * When there are no filler lines nothing changes.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1715 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1716 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1717 topline_botline(lp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1718 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1719 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1720 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1721 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1722 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1723 --lp->lnum;
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 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1727
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1728 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1729 * Recompute topline to put the cursor at the top of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1730 * Scroll at least "min_scroll" lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1731 * If "always" is TRUE, always set topline (for "zt").
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1732 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1733 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1734 scroll_cursor_top(min_scroll, always)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1735 int min_scroll;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1736 int always;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1737 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1738 int scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1739 int extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1740 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1741 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1742 linenr_T top; /* just above displayed lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1743 linenr_T bot; /* just below displayed lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1744 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1745 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1746 linenr_T old_topfill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1747 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1748 linenr_T new_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1749 int off = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1750
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1751 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1752 if (mouse_dragging > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1753 off = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1754 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1755
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1756 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1757 * Decrease topline until:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1758 * - it has become 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1759 * - (part of) the cursor line is moved off the screen or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1760 * - moved at least 'scrolljump' lines and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1761 * - at least 'scrolloff' lines above and below the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1762 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1763 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1764 used = curwin->w_cline_height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1765 if (curwin->w_cursor.lnum < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1766 scrolled = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1767
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1768 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1769 if (hasFolding(curwin->w_cursor.lnum, &top, &bot))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1770 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1771 --top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1772 ++bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1773 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1774 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1775 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1776 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1777 top = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1778 bot = curwin->w_cursor.lnum + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1779 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1780 new_topline = top + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1781
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1782 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1783 /* count filler lines of the cursor window as context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1784 i = diff_check_fill(curwin, curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1785 used += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1786 extra += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1787 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1788
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1789 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1790 * 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
1791 * set new_topline and advance "top" and "bot" to include more lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1792 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1793 while (top > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1794 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1795 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1796 if (hasFolding(top, &top, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1797 /* count one logical line for a sequence of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1798 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1799 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1800 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1801 i = plines(top);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1802 used += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1803 if (extra + i <= off && bot < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1804 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1805 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1806 if (hasFolding(bot, NULL, &bot))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1807 /* count one logical line for a sequence of folded lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1808 ++used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1809 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1810 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1811 used += plines(bot);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1812 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1813 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1814 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1815 if (top < curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1816 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1817
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1818 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1819 * If scrolling is needed, scroll at least 'sj' lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1820 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1821 if ((new_topline >= curwin->w_topline || scrolled > min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1822 && extra >= off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1823 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1824
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1825 extra += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1826 new_topline = top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1827 --top;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1828 ++bot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1829 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1830
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1831 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1832 * If we don't have enough space, put cursor in the middle.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1833 * This makes sure we get the same position when using "k" and "j"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1834 * in a small window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1835 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1836 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1837 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1838 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1839 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1840 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1841 * If "always" is FALSE, only adjust topline to a lower value, higher
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1842 * value may happen with wrapping lines
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1843 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1844 if (new_topline < curwin->w_topline || always)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1845 curwin->w_topline = new_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1846 if (curwin->w_topline > curwin->w_cursor.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1847 curwin->w_topline = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1848 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1849 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1850 if (curwin->w_topfill > 0 && extra > off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1851 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1852 curwin->w_topfill -= extra - off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1853 if (curwin->w_topfill < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1854 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1855 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1856 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1857 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1858 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1859 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1860 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1861 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1862 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1863 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1864 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1865 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1866 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1867 }
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 * 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
1871 * screen lines for text lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1872 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1873 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1874 set_empty_rows(wp, used)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1875 win_T *wp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1876 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1877 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1878 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1879 wp->w_filler_rows = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1880 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1881 if (used == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1882 wp->w_empty_rows = 0; /* single line that doesn't fit */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1883 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1884 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1885 wp->w_empty_rows = wp->w_height - used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1886 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1887 if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1888 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1889 wp->w_filler_rows = diff_check_fill(wp, wp->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1890 if (wp->w_empty_rows > wp->w_filler_rows)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1891 wp->w_empty_rows -= wp->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1892 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1893 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1894 wp->w_filler_rows = wp->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1895 wp->w_empty_rows = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1896 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1897 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1898 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1899 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1900 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1901
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1902 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1903 * Recompute topline to put the cursor at the bottom of the window.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1904 * Scroll at least "min_scroll" lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1905 * If "set_topbot" is TRUE, set topline and botline first (for "zb").
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1906 * This is messy stuff!!!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1907 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1908 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1909 scroll_cursor_bot(min_scroll, set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1910 int min_scroll;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1911 int set_topbot;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1912 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1913 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1914 int scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1915 int extra = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1916 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1917 linenr_T line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1918 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1919 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1920 lineoff_T boff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1921 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1922 int old_topfill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1923 int fill_below_window;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1924 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1925 linenr_T old_botline = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1926 linenr_T old_valid = curwin->w_valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1927 int old_empty_rows = curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1928 linenr_T cln; /* Cursor Line Number */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1929
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1930 cln = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1931 if (set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1932 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1933 used = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1934 curwin->w_botline = cln + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1935 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1936 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1937 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1938 for (curwin->w_topline = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1939 curwin->w_topline > 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1940 curwin->w_topline = loff.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1941 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1942 loff.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1943 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1944 if (used + loff.height > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1945 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1946 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1947 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1948 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1949 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1950 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1951 set_empty_rows(curwin, used);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1952 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1953 if (curwin->w_topline != old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1954 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1955 || curwin->w_topfill != old_topfill
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1956 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1957 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1958 curwin->w_valid &= ~(VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1959 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1960 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1961 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1962
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1963 /* The lines of the cursor line itself are always used. */
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 used = plines_nofill(cln);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1966 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1967 validate_cheight();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1968 used = curwin->w_cline_height;
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 /* If the cursor is below botline, we will at least scroll by the height
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1972 * of the cursor line. Correct for empty lines, which are really part of
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1973 * botline. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1974 if (cln >= curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1975 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1976 scrolled = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1977 if (cln == curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1978 scrolled -= curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1979 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1980
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1981 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1982 * Stop counting lines to scroll when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1983 * - hitting start of the file
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1984 * - scrolled nothing or at least 'sj' lines
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1985 * - at least 'so' lines below the cursor
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1986 * - lines between botline and cursor have been counted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1987 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1988 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1989 if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1990 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1991 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1992 loff.lnum = cln;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1993 boff.lnum = cln;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1994 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1995 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1996 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1997 boff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1998 fill_below_window = diff_check_fill(curwin, curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1999 - curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2000 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2001
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2002 while (loff.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2003 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2004 /* Stop when scrolled nothing or at least "min_scroll", found "extra"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2005 * context for 'scrolloff' and counted all lines below the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2006 if ((((scrolled <= 0 || scrolled >= min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2007 && extra >= (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2008 #ifdef FEAT_MOUSE
1121
e63691e7c504 updated for version 7.1a
vimboss
parents: 752
diff changeset
2009 mouse_dragging > 0 ? mouse_dragging - 1 :
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2010 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2011 p_so))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2012 || boff.lnum + 1 > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2013 && loff.lnum <= curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2014 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2015 && (loff.lnum < curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2016 || loff.fill >= fill_below_window)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2017 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2018 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2019 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2020
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2021 /* Add one line above */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2022 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2023 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2024 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2025 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2026 if (loff.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 && (loff.lnum > curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2029 || loff.fill <= fill_below_window)
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 += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2035 if (loff.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 if (boff.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2044 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2045 /* Add one line below */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2046 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2047 used += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2048 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2049 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2050 if (extra < (
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2051 #ifdef FEAT_MOUSE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2052 mouse_dragging > 0 ? mouse_dragging - 1 :
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2053 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2054 p_so) || scrolled < min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2055 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2056 extra += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2057 if (boff.lnum >= curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2058 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2059 || (boff.lnum + 1 == curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2060 && boff.fill > curwin->w_filler_rows)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2061 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2062 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2063 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2064 /* Count screen lines that are below the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2065 scrolled += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2066 if (boff.lnum == curwin->w_botline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2067 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2068 && boff.fill == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2069 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2070 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2071 scrolled -= curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2072 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2073 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2074 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2075 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2076
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2077 /* curwin->w_empty_rows is larger, no need to scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2078 if (scrolled <= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2079 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2080 /* more than a screenfull, don't scroll but redraw */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2081 else if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2082 line_count = used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2083 /* scroll minimal number of lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2084 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2085 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2086 line_count = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2087 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2088 boff.fill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2089 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2090 boff.lnum = curwin->w_topline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2091 for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2092 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2093 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2094 i += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2095 ++line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2096 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2097 if (i < scrolled) /* below curwin->w_botline, don't scroll */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2098 line_count = 9999;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2099 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2100
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2101 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2102 * Scroll up if the cursor is off the bottom of the screen a bit.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2103 * Otherwise put it at 1/2 of the screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2104 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2105 if (line_count >= curwin->w_height && line_count > min_scroll)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2106 scroll_cursor_halfway(FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2107 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2108 scrollup(line_count, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2109
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2110 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2111 * 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
2112 * (we changed them).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2113 * If topline did change, update_screen() will set botline.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2114 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2115 if (curwin->w_topline == old_topline && set_topbot)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2116 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2117 curwin->w_botline = old_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2118 curwin->w_empty_rows = old_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2119 curwin->w_valid = old_valid;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2120 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2121 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2122 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2123
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2124 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2125 * Recompute topline to put the cursor halfway the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2126 * If "atend" is TRUE, also put it halfway at the end of the file.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2127 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2128 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2129 scroll_cursor_halfway(atend)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2130 int atend;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2131 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2132 int above = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2133 linenr_T topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2134 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2135 int topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2136 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2137 int below = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2138 int used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2139 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2140 lineoff_T boff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2141
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2142 loff.lnum = boff.lnum = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2143 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2144 (void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2145 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2146 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2147 used = plines_nofill(loff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2148 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2149 boff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2150 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2151 used = plines(loff.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2152 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2153 topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2154 while (topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2155 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2156 if (below <= above) /* add a line below the cursor first */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2157 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2158 if (boff.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2159 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2160 botline_forw(&boff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2161 used += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2162 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2163 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2164 below += boff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2165 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2166 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2167 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2168 ++below; /* count a "~" line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2169 if (atend)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2170 ++used;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2171 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2172 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2173
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2174 if (below > above) /* add a line above the cursor */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2175 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2176 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2177 used += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2178 if (used > curwin->w_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2179 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2180 above += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2181 topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2182 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2183 topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2184 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2185 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2186 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2187 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2188 if (!hasFolding(topline, &curwin->w_topline, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2189 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2190 curwin->w_topline = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2191 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2192 curwin->w_topfill = topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2193 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2194 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2195 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2196 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2197 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2198
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2199 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2200 * 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
2201 * 'so' lines from the top and bottom, if possible.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2202 * If not possible, put it at the same position as scroll_cursor_halfway().
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2203 * When called topline must be valid!
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2204 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2205 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2206 cursor_correct()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2207 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2208 int above = 0; /* screen lines above topline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2209 linenr_T topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2210 int below = 0; /* screen lines below botline */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2211 linenr_T botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2212 int above_wanted, below_wanted;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2213 linenr_T cln; /* Cursor Line Number */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2214 int max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2215
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2216 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2217 * How many lines we would like to have above/below the cursor depends on
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2218 * whether the first/last line of the file is on screen.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2219 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2220 above_wanted = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2221 below_wanted = p_so;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2222 #ifdef FEAT_MOUSE
1121
e63691e7c504 updated for version 7.1a
vimboss
parents: 752
diff changeset
2223 if (mouse_dragging > 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2224 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2225 above_wanted = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2226 below_wanted = mouse_dragging - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2227 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2228 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2229 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2230 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2231 above_wanted = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2232 max_off = curwin->w_height / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2233 if (below_wanted > max_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2234 below_wanted = max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2235 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2236 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2237 if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2238 #ifdef FEAT_MOUSE
1121
e63691e7c504 updated for version 7.1a
vimboss
parents: 752
diff changeset
2239 && mouse_dragging == 0
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2240 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2241 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2242 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2243 below_wanted = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2244 max_off = (curwin->w_height - 1) / 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2245 if (above_wanted > max_off)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2246 above_wanted = max_off;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2247 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2248
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2249 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2250 * If there are sufficient file-lines above and below the cursor, we can
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2251 * return now.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2252 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2253 cln = curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2254 if (cln >= curwin->w_topline + above_wanted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2255 && cln < curwin->w_botline - below_wanted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2256 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2257 && !hasAnyFolding(curwin)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2258 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2259 )
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2260 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2261
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2262 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2263 * Narrow down the area where the cursor can be put by taking lines from
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2264 * the top and the bottom until:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2265 * - the desired context lines are found
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2266 * - the lines from the top is past the lines from the bottom
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2267 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2268 topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2269 botline = curwin->w_botline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2270 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2271 /* count filler lines as context */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2272 above = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2273 below = curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2274 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2275 while ((above < above_wanted || below < below_wanted) && topline < botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2276 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2277 if (below < below_wanted && (below <= above || above >= above_wanted))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2278 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2279 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2280 if (hasFolding(botline, &botline, NULL))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2281 ++below;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2282 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2283 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2284 below += plines(botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2285 --botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2286 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2287 if (above < above_wanted && (above < below || below >= below_wanted))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2288 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2289 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2290 if (hasFolding(topline, NULL, &topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2291 ++above;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2292 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2293 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2294 #ifndef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2295 above += plines(topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2296 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2297 above += plines_nofill(topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2298
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2299 /* Count filler lines below this line as context. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2300 if (topline < botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2301 above += diff_check_fill(curwin, topline + 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2302 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2303 ++topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2304 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2305 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2306 if (topline == botline || botline == 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2307 curwin->w_cursor.lnum = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2308 else if (topline > botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2309 curwin->w_cursor.lnum = botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2310 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2311 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2312 if (cln < topline && curwin->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2313 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2314 curwin->w_cursor.lnum = topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2315 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2316 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2317 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2318 if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2319 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2320 curwin->w_cursor.lnum = botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2321 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2322 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2323 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2324 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2325 curwin->w_valid |= VALID_TOPLINE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2326 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2327
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2328 static void get_scroll_overlap __ARGS((lineoff_T *lp, int dir));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2329
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2330 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2331 * move screen 'count' pages up or down and update screen
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2332 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2333 * return FAIL for failure, OK otherwise
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2334 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2335 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2336 onepage(dir, count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2337 int dir;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2338 long count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2339 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2340 long n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2341 int retval = OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2342 lineoff_T loff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2343 linenr_T old_topline = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2344
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2345 if (curbuf->b_ml.ml_line_count == 1) /* nothing to do */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2346 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2347 beep_flush();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2348 return FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2349 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2350
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2351 for ( ; count > 0; --count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2352 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2353 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2354 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2355 * 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
2356 * 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
2357 * is on the screen and the topline is 'scrolloff' lines from the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2358 * last line.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2359 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2360 if (dir == FORWARD
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2361 ? ((curwin->w_topline >= curbuf->b_ml.ml_line_count - p_so)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2362 && curwin->w_botline > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2363 : (curwin->w_topline == 1
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 ==
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2366 diff_check_fill(curwin, curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2367 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2368 ))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2369 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2370 beep_flush();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2371 retval = FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2372 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2373 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2374
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2375 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2376 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2377 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2378 if (dir == FORWARD)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2379 {
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2380 if (firstwin == lastwin && p_window > 0 && p_window < Rows - 1)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2381 {
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2382 /* Vi compatible scrolling */
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2383 if (p_window <= 2)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2384 ++curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2385 else
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2386 curwin->w_topline += p_window - 2;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2387 if (curwin->w_topline > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2388 curwin->w_topline = curbuf->b_ml.ml_line_count;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2389 curwin->w_cursor.lnum = curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2390 }
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2391 else if (curwin->w_botline > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2392 {
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2393 /* at end of file */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2394 curwin->w_topline = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2395 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2396 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2397 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2398 curwin->w_valid &= ~(VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2399 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2400 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2401 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2402 /* For the overlap, start with the line just below the window
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2403 * and go upwards. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2404 loff.lnum = curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2405 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2406 loff.fill = diff_check_fill(curwin, loff.lnum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2407 - curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2408 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2409 get_scroll_overlap(&loff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2410 curwin->w_topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2411 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2412 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2413 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2414 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2415 curwin->w_cursor.lnum = curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2416 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2417 VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2418 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2419 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2420 else /* dir == BACKWARDS */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2421 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2422 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2423 if (curwin->w_topline == 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2424 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2425 /* Include max number of filler lines */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2426 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2427 continue;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2428 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2429 #endif
164
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2430 if (firstwin == lastwin && p_window > 0 && p_window < Rows - 1)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2431 {
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2432 /* Vi compatible scrolling (sort of) */
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2433 if (p_window <= 2)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2434 --curwin->w_topline;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2435 else
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2436 curwin->w_topline -= p_window - 2;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2437 if (curwin->w_topline < 1)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2438 curwin->w_topline = 1;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2439 curwin->w_cursor.lnum = curwin->w_topline + p_window - 1;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2440 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2441 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2442 continue;
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2443 }
8b0ee9d57d7f updated for version 7.0050
vimboss
parents: 161
diff changeset
2444
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2445 /* 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
2446 * line at the bottom of the window. Make sure this results in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2447 * the same line as before doing CTRL-F. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2448 loff.lnum = curwin->w_topline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2449 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2450 loff.fill = diff_check_fill(curwin, loff.lnum + 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2451 - curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2452 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2453 get_scroll_overlap(&loff, 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2454
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2455 if (loff.lnum >= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2456 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2457 loff.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2458 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2459 loff.fill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2460 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2461 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2462 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2463 botline_topline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2464 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2465 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2466 curwin->w_cursor.lnum = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2467
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2468 /* Find the line just above the new topline to get the right line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2469 * at the bottom of the window. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2470 n = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2471 while (n <= curwin->w_height && loff.lnum >= 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2472 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2473 topline_back(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2474 n += loff.height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2475 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2476 if (n <= curwin->w_height) /* at begin of file */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2477 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2478 curwin->w_topline = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2479 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2480 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2481 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2482 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2483 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2484 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2485 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2486 /* Go two lines forward again. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2487 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2488 topline_botline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2489 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2490 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2491 botline_forw(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2492 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2493 botline_topline(&loff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2494 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2495 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2496 /* We're at the wrong end of a fold now. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2497 (void)hasFolding(loff.lnum, &loff.lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2498 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2499
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2500 /* Always scroll at least one line. Avoid getting stuck on
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2501 * very long lines. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2502 if (loff.lnum >= curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2503 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2504 && (loff.lnum > curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2505 || loff.fill >= curwin->w_topfill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2506 #endif
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 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2510 /* First try using the maximum number of filler lines. If
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2511 * that's not enough, backup one line. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2512 loff.fill = curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2513 if (curwin->w_topfill < diff_check_fill(curwin,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2514 curwin->w_topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2515 max_topfill();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2516 if (curwin->w_topfill == loff.fill)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2517 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2518 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2519 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2520 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2521 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2522 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2523 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2524 comp_botline(curwin);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2525 curwin->w_cursor.lnum = curwin->w_botline - 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2526 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2527 VALID_WROW|VALID_CROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2528 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2529 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2530 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2531 curwin->w_topline = loff.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2532 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2533 curwin->w_topfill = loff.fill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2534 check_topfill(curwin, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2535 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2536 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2537 }
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 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2542 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2543 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2544 cursor_correct();
161
6df0106fc595 updated for version 7.0049
vimboss
parents: 119
diff changeset
2545 if (retval == OK)
6df0106fc595 updated for version 7.0049
vimboss
parents: 119
diff changeset
2546 beginline(BL_SOL | BL_FIX);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2547 curwin->w_valid &= ~(VALID_WCOL|VALID_WROW|VALID_VIRTCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2548
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2549 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2550 * Avoid the screen jumping up and down when 'scrolloff' is non-zero.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2551 * But make sure we scroll at least one line (happens with mix of long
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2552 * wrapping lines and non-wrapping line).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2553 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2554 if (retval == OK && dir == FORWARD && check_top_offset())
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2555 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2556 scroll_cursor_top(1, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2557 if (curwin->w_topline <= old_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2558 && old_topline < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2559 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2560 curwin->w_topline = old_topline + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2561 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2562 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2563 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2564 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2565 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2566
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2567 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2568 return retval;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2569 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2570
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2571 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2572 * Decide how much overlap to use for page-up or page-down scrolling.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2573 * This is symmetric, so that doing both keeps the same lines displayed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2574 * Three lines are examined:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2575 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2576 * before CTRL-F after CTRL-F / before CTRL-B
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2577 * etc. l1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2578 * l1 last but one line ------------
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2579 * l2 last text line l2 top text line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2580 * ------------- l3 second text line
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2581 * l3 etc.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2582 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2583 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2584 get_scroll_overlap(lp, dir)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2585 lineoff_T *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2586 int dir;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2587 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2588 int h1, h2, h3, h4;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2589 int min_height = curwin->w_height - 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2590 lineoff_T loff0, loff1, loff2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2591
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2592 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2593 if (lp->fill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2594 lp->height = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2595 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2596 lp->height = plines_nofill(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2597 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2598 lp->height = plines(lp->lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2599 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2600 h1 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2601 if (h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2602 return; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2603
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2604 loff0 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2605 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2606 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2607 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2608 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2609 h2 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2610 if (h2 + h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2611 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2612 *lp = loff0; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2613 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2614 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2615
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2616 loff1 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2617 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2618 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2619 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2620 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2621 h3 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2622 if (h3 + h2 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2623 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2624 *lp = loff0; /* no overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2625 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2626 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2627
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2628 loff2 = *lp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2629 if (dir > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2630 botline_forw(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2631 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2632 topline_back(lp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2633 h4 = lp->height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2634 if (h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2635 *lp = loff1; /* 1 line overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2636 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2637 *lp = loff2; /* 2 lines overlap */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2638 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2639 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2640
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2641 /* #define KEEP_SCREEN_LINE */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2642 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2643 * Scroll 'scroll' lines up or down.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2644 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2645 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2646 halfpage(flag, Prenum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2647 int flag;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2648 linenr_T Prenum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2649 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2650 long scrolled = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2651 int i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2652 int n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2653 int room;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2654
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2655 if (Prenum)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2656 curwin->w_p_scr = (Prenum > curwin->w_height) ?
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2657 curwin->w_height : Prenum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2658 n = (curwin->w_p_scr <= curwin->w_height) ?
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2659 curwin->w_p_scr : curwin->w_height;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2660
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2661 validate_botline();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2662 room = curwin->w_empty_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2663 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2664 room += curwin->w_filler_rows;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2665 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2666 if (flag)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2667 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2668 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2669 * scroll the text up
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2670 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2671 while (n > 0 && curwin->w_botline <= curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2672 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2673 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2674 if (curwin->w_topfill > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2675 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2676 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2677 if (--n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2678 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2679 --curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2680 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2681 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2682 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2683 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2684 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2685 i = plines_nofill(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2686 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2687 i = plines(curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2688 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2689 n -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2690 if (n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2691 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2692 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2693 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2694 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2695 ++curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2696 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2697 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2698 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2699
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2700 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2701 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2702 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2703 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2704 curwin->w_valid &=
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2705 ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2706 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2707 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2708 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2709 curwin->w_valid &= ~(VALID_CROW|VALID_WROW);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2710 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2711
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2712 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2713 * Correct w_botline for changed w_topline.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2714 * Won't work when there are filler lines.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2715 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2716 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2717 if (curwin->w_p_diff)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2718 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2719 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2720 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2721 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2722 room += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2723 do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2724 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2725 i = plines(curwin->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2726 if (i > room)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2727 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2728 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2729 (void)hasFolding(curwin->w_botline, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2730 &curwin->w_botline);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2731 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2732 ++curwin->w_botline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2733 room -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2734 } while (curwin->w_botline <= curbuf->b_ml.ml_line_count);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2735 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2736 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2737
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2738 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2739 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2740 * When hit bottom of the file: move cursor down.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2741 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2742 if (n > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2743 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2744 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2745 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2746 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2747 while (--n >= 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2748 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2749 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2750 (void)hasFolding(curwin->w_cursor.lnum, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2751 &curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2752 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2753 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2754 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2755 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2756 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2757 curwin->w_cursor.lnum += n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2758 check_cursor_lnum();
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 /* try to put the cursor in the same screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2762 while ((curwin->w_cursor.lnum < curwin->w_topline || scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2763 && curwin->w_cursor.lnum < curwin->w_botline - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2764 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2765 scrolled -= plines(curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2766 if (scrolled < 0 && curwin->w_cursor.lnum >= curwin->w_topline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2767 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2768 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2769 (void)hasFolding(curwin->w_cursor.lnum, NULL,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2770 &curwin->w_cursor.lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2771 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2772 ++curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2773 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2774 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2775 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2776 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2777 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2778 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2779 * scroll the text down
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2780 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2781 while (n > 0 && curwin->w_topline > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2782 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2783 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2784 if (curwin->w_topfill < diff_check_fill(curwin, curwin->w_topline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2785 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2786 i = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2787 if (--n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2788 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2789 ++curwin->w_topfill;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2790 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2791 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2792 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2793 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2794 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2795 i = plines_nofill(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2796 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2797 i = plines(curwin->w_topline - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2798 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2799 n -= i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2800 if (n < 0 && scrolled > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2801 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2802 --curwin->w_topline;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2803 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2804 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2805 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2806 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2807 curwin->w_topfill = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2808 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2809 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2810 curwin->w_valid &= ~(VALID_CROW|VALID_WROW|
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2811 VALID_BOTLINE|VALID_BOTLINE_AP);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2812 scrolled += i;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2813 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2814 if (curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2815 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2816 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2817 curwin->w_valid &= ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2818 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2819 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2820 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2821 #ifndef KEEP_SCREEN_LINE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2822 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2823 * When hit top of the file: move cursor up.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2824 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2825 if (n > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2826 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2827 if (curwin->w_cursor.lnum <= (linenr_T)n)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2828 curwin->w_cursor.lnum = 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2829 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2830 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2831 if (hasAnyFolding(curwin))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2832 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2833 while (--n >= 0 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2834 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2835 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2836 (void)hasFolding(curwin->w_cursor.lnum,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2837 &curwin->w_cursor.lnum, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2838 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2839 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2840 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2841 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2842 curwin->w_cursor.lnum -= n;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2843 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2844 #else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2845 /* try to put the cursor in the same screen line */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2846 scrolled += n; /* move cursor when topline is 1 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2847 while (curwin->w_cursor.lnum > curwin->w_topline
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2848 && (scrolled > 0 || curwin->w_cursor.lnum >= curwin->w_botline))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2849 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2850 scrolled -= plines(curwin->w_cursor.lnum - 1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2851 if (scrolled < 0 && curwin->w_cursor.lnum < curwin->w_botline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2852 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2853 --curwin->w_cursor.lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2854 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2855 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2856 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2857 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2858 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2859 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2860 # ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2861 /* Move cursor to first line of closed fold. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2862 foldAdjustCursor();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2863 # endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2864 #ifdef FEAT_DIFF
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2865 check_topfill(curwin, !flag);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2866 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2867 cursor_correct();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2868 beginline(BL_SOL | BL_FIX);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2869 redraw_later(VALID);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2870 }