Mercurial > vim
annotate src/move.c @ 17809:59f8948b7590 v8.1.1901
patch 8.1.1901: the +insert_expand feature is not always available
Commit: https://github.com/vim/vim/commit/e2c453d38f6512ac4cff7cd26aa7780b4e2534d7
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Aug 21 14:37:09 2019 +0200
patch 8.1.1901: the +insert_expand feature is not always available
Problem: The +insert_expand feature is not always available.
Solution: Graduate the +insert_expand feature.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 21 Aug 2019 14:45:04 +0200 |
| parents | 8a095d343c59 |
| children | 08f1dd29550e |
| rev | line source |
|---|---|
|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 /* | |
| 10 * move.c: Functions for moving the cursor and scrolling text. | |
| 11 * | |
| 12 * There are two ways to move the cursor: | |
| 13 * 1. Move the cursor directly, the text is scrolled to keep the cursor in the | |
| 14 * window. | |
| 15 * 2. Scroll the text, the cursor is moved into the text visible in the | |
| 16 * window. | |
| 17 * The 'scrolloff' option makes this a bit complicated. | |
| 18 */ | |
| 19 | |
| 20 #include "vim.h" | |
| 21 | |
|
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22 static int scrolljump_value(void); |
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23 static int check_top_offset(void); |
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24 static void curs_rows(win_T *wp); |
| 7 | 25 |
| 26 typedef struct | |
| 27 { | |
| 28 linenr_T lnum; /* line number */ | |
| 29 #ifdef FEAT_DIFF | |
| 30 int fill; /* filler lines */ | |
| 31 #endif | |
| 32 int height; /* height of added line */ | |
| 33 } lineoff_T; | |
| 34 | |
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35 static void topline_back(lineoff_T *lp); |
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36 static void botline_forw(lineoff_T *lp); |
| 7 | 37 |
| 38 /* | |
| 39 * Compute wp->w_botline for the current wp->w_topline. Can be called after | |
| 40 * wp->w_topline changed. | |
| 41 */ | |
| 42 static void | |
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43 comp_botline(win_T *wp) |
| 7 | 44 { |
| 45 int n; | |
| 46 linenr_T lnum; | |
| 47 int done; | |
| 48 #ifdef FEAT_FOLDING | |
| 49 linenr_T last; | |
| 50 int folded; | |
| 51 #endif | |
| 52 | |
| 53 /* | |
| 54 * If w_cline_row is valid, start there. | |
| 55 * Otherwise have to start at w_topline. | |
| 56 */ | |
| 57 check_cursor_moved(wp); | |
| 58 if (wp->w_valid & VALID_CROW) | |
| 59 { | |
| 60 lnum = wp->w_cursor.lnum; | |
| 61 done = wp->w_cline_row; | |
| 62 } | |
| 63 else | |
| 64 { | |
| 65 lnum = wp->w_topline; | |
| 66 done = 0; | |
| 67 } | |
| 68 | |
| 69 for ( ; lnum <= wp->w_buffer->b_ml.ml_line_count; ++lnum) | |
| 70 { | |
| 71 #ifdef FEAT_FOLDING | |
| 72 last = lnum; | |
| 73 folded = FALSE; | |
| 74 if (hasFoldingWin(wp, lnum, NULL, &last, TRUE, NULL)) | |
| 75 { | |
| 76 n = 1; | |
| 77 folded = TRUE; | |
| 78 } | |
| 79 else | |
| 80 #endif | |
| 81 #ifdef FEAT_DIFF | |
| 82 if (lnum == wp->w_topline) | |
| 83 n = plines_win_nofill(wp, lnum, TRUE) + wp->w_topfill; | |
| 84 else | |
| 85 #endif | |
| 86 n = plines_win(wp, lnum, TRUE); | |
| 87 if ( | |
| 88 #ifdef FEAT_FOLDING | |
| 89 lnum <= wp->w_cursor.lnum && last >= wp->w_cursor.lnum | |
| 90 #else | |
| 91 lnum == wp->w_cursor.lnum | |
| 92 #endif | |
| 93 ) | |
| 94 { | |
| 95 wp->w_cline_row = done; | |
| 96 wp->w_cline_height = n; | |
| 97 #ifdef FEAT_FOLDING | |
| 98 wp->w_cline_folded = folded; | |
| 99 #endif | |
| 5764 | 100 redraw_for_cursorline(wp); |
| 7 | 101 wp->w_valid |= (VALID_CROW|VALID_CHEIGHT); |
| 102 } | |
| 103 if (done + n > wp->w_height) | |
| 104 break; | |
| 105 done += n; | |
| 106 #ifdef FEAT_FOLDING | |
| 107 lnum = last; | |
| 108 #endif | |
| 109 } | |
| 110 | |
| 111 /* wp->w_botline is the line that is just below the window */ | |
| 112 wp->w_botline = lnum; | |
| 113 wp->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
| 114 | |
| 115 set_empty_rows(wp, done); | |
| 116 } | |
| 117 | |
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118 #ifdef FEAT_SYN_HL |
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119 void |
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120 reset_cursorline(void) |
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121 { |
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122 curwin->w_last_cursorline = 0; |
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123 } |
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124 #endif |
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125 |
| 7 | 126 /* |
| 5764 | 127 * Redraw when w_cline_row changes and 'relativenumber' or 'cursorline' is |
| 128 * set. | |
| 129 */ | |
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130 void |
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131 redraw_for_cursorline(win_T *wp) |
| 5764 | 132 { |
| 133 if ((wp->w_p_rnu | |
| 134 #ifdef FEAT_SYN_HL | |
| 135 || wp->w_p_cul | |
| 136 #endif | |
| 137 ) | |
| 138 && (wp->w_valid & VALID_CROW) == 0 | |
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139 && !pum_visible()) |
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140 { |
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141 if (wp->w_p_rnu) |
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142 // win_line() will redraw the number column only. |
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143 redraw_win_later(wp, VALID); |
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144 #ifdef FEAT_SYN_HL |
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145 if (wp->w_p_cul) |
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146 { |
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147 if (wp->w_redr_type <= VALID && wp->w_last_cursorline != 0) |
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148 { |
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149 // "w_last_cursorline" may be outdated, worst case we redraw |
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150 // too much. This is optimized for moving the cursor around in |
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151 // the current window. |
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152 redrawWinline(wp, wp->w_last_cursorline); |
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153 redrawWinline(wp, wp->w_cursor.lnum); |
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154 } |
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155 else |
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156 redraw_win_later(wp, SOME_VALID); |
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157 } |
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158 #endif |
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159 } |
| 5764 | 160 } |
| 161 | |
| 162 /* | |
| 7 | 163 * Update curwin->w_topline and redraw if necessary. |
| 164 * Used to update the screen before printing a message. | |
| 165 */ | |
| 166 void | |
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167 update_topline_redraw(void) |
| 7 | 168 { |
| 169 update_topline(); | |
| 170 if (must_redraw) | |
| 171 update_screen(0); | |
| 172 } | |
| 173 | |
| 174 /* | |
| 175 * Update curwin->w_topline to move the cursor onto the screen. | |
| 176 */ | |
| 177 void | |
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178 update_topline(void) |
| 7 | 179 { |
| 180 long line_count; | |
| 181 int halfheight; | |
| 182 int n; | |
| 183 linenr_T old_topline; | |
| 184 #ifdef FEAT_DIFF | |
| 185 int old_topfill; | |
| 186 #endif | |
| 187 #ifdef FEAT_FOLDING | |
| 188 linenr_T lnum; | |
| 189 #endif | |
| 190 int check_topline = FALSE; | |
| 191 int check_botline = FALSE; | |
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192 long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so; |
| 7 | 193 #ifdef FEAT_MOUSE |
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194 int save_so = *so_ptr; |
| 7 | 195 #endif |
| 196 | |
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197 /* If there is no valid screen and when the window height is zero just use |
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198 * the cursor line. */ |
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199 if (!screen_valid(TRUE) || curwin->w_height == 0) |
| 6247 | 200 { |
| 201 curwin->w_topline = curwin->w_cursor.lnum; | |
| 202 curwin->w_botline = curwin->w_topline; | |
| 203 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
| 204 curwin->w_scbind_pos = 1; | |
| 205 return; | |
| 206 } | |
| 207 | |
| 7 | 208 check_cursor_moved(curwin); |
| 209 if (curwin->w_valid & VALID_TOPLINE) | |
| 210 return; | |
| 211 | |
| 212 #ifdef FEAT_MOUSE | |
| 213 /* When dragging with the mouse, don't scroll that quickly */ | |
| 1121 | 214 if (mouse_dragging > 0) |
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215 *so_ptr = mouse_dragging - 1; |
| 7 | 216 #endif |
| 217 | |
| 218 old_topline = curwin->w_topline; | |
| 219 #ifdef FEAT_DIFF | |
| 220 old_topfill = curwin->w_topfill; | |
| 221 #endif | |
| 222 | |
| 223 /* | |
| 224 * If the buffer is empty, always set topline to 1. | |
| 225 */ | |
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226 if (BUFEMPTY()) /* special case - file is empty */ |
| 7 | 227 { |
| 228 if (curwin->w_topline != 1) | |
| 229 redraw_later(NOT_VALID); | |
| 230 curwin->w_topline = 1; | |
| 231 curwin->w_botline = 2; | |
| 232 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
| 233 curwin->w_scbind_pos = 1; | |
| 234 } | |
| 235 | |
| 236 /* | |
| 237 * If the cursor is above or near the top of the window, scroll the window | |
| 238 * to show the line the cursor is in, with 'scrolloff' context. | |
| 239 */ | |
| 240 else | |
| 241 { | |
| 242 if (curwin->w_topline > 1) | |
| 243 { | |
| 244 /* If the cursor is above topline, scrolling is always needed. | |
| 245 * If the cursor is far below topline and there is no folding, | |
| 246 * scrolling down is never needed. */ | |
| 247 if (curwin->w_cursor.lnum < curwin->w_topline) | |
| 248 check_topline = TRUE; | |
| 249 else if (check_top_offset()) | |
| 250 check_topline = TRUE; | |
| 251 } | |
| 252 #ifdef FEAT_DIFF | |
| 253 /* Check if there are more filler lines than allowed. */ | |
| 254 if (!check_topline && curwin->w_topfill > diff_check_fill(curwin, | |
| 255 curwin->w_topline)) | |
| 256 check_topline = TRUE; | |
| 257 #endif | |
| 258 | |
| 259 if (check_topline) | |
| 260 { | |
| 261 halfheight = curwin->w_height / 2 - 1; | |
| 262 if (halfheight < 2) | |
| 263 halfheight = 2; | |
| 264 | |
| 265 #ifdef FEAT_FOLDING | |
| 266 if (hasAnyFolding(curwin)) | |
| 267 { | |
| 268 /* Count the number of logical lines between the cursor and | |
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269 * topline + scrolloff (approximation of how much will be |
| 7 | 270 * scrolled). */ |
| 271 n = 0; | |
| 272 for (lnum = curwin->w_cursor.lnum; | |
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273 lnum < curwin->w_topline + *so_ptr; ++lnum) |
| 7 | 274 { |
| 275 ++n; | |
| 276 /* stop at end of file or when we know we are far off */ | |
| 277 if (lnum >= curbuf->b_ml.ml_line_count || n >= halfheight) | |
| 278 break; | |
| 279 (void)hasFolding(lnum, NULL, &lnum); | |
| 280 } | |
| 281 } | |
| 282 else | |
| 283 #endif | |
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284 n = curwin->w_topline + *so_ptr - curwin->w_cursor.lnum; |
| 7 | 285 |
| 286 /* If we weren't very close to begin with, we scroll to put the | |
| 287 * cursor in the middle of the window. Otherwise put the cursor | |
| 288 * near the top of the window. */ | |
| 289 if (n >= halfheight) | |
| 290 scroll_cursor_halfway(FALSE); | |
| 291 else | |
| 292 { | |
| 532 | 293 scroll_cursor_top(scrolljump_value(), FALSE); |
| 7 | 294 check_botline = TRUE; |
| 295 } | |
| 296 } | |
| 297 | |
| 298 else | |
| 299 { | |
| 300 #ifdef FEAT_FOLDING | |
| 301 /* Make sure topline is the first line of a fold. */ | |
| 302 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); | |
| 303 #endif | |
| 304 check_botline = TRUE; | |
| 305 } | |
| 306 } | |
| 307 | |
| 308 /* | |
| 309 * If the cursor is below the bottom of the window, scroll the window | |
| 310 * to put the cursor on the window. | |
| 311 * When w_botline is invalid, recompute it first, to avoid a redraw later. | |
| 312 * If w_botline was approximated, we might need a redraw later in a few | |
| 313 * cases, but we don't want to spend (a lot of) time recomputing w_botline | |
| 314 * for every small change. | |
| 315 */ | |
| 316 if (check_botline) | |
| 317 { | |
| 318 if (!(curwin->w_valid & VALID_BOTLINE_AP)) | |
| 319 validate_botline(); | |
| 320 | |
| 321 if (curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
| 322 { | |
| 1744 | 323 if (curwin->w_cursor.lnum < curwin->w_botline) |
| 324 { | |
| 325 if (((long)curwin->w_cursor.lnum | |
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326 >= (long)curwin->w_botline - *so_ptr |
| 7 | 327 #ifdef FEAT_FOLDING |
| 328 || hasAnyFolding(curwin) | |
| 329 #endif | |
| 330 )) | |
| 1744 | 331 { |
| 7 | 332 lineoff_T loff; |
| 333 | |
| 1744 | 334 /* Cursor is (a few lines) above botline, check if there are |
| 335 * 'scrolloff' window lines below the cursor. If not, need to | |
| 336 * scroll. */ | |
| 7 | 337 n = curwin->w_empty_rows; |
| 338 loff.lnum = curwin->w_cursor.lnum; | |
| 339 #ifdef FEAT_FOLDING | |
| 340 /* In a fold go to its last line. */ | |
| 341 (void)hasFolding(loff.lnum, NULL, &loff.lnum); | |
| 342 #endif | |
| 343 #ifdef FEAT_DIFF | |
| 344 loff.fill = 0; | |
| 345 n += curwin->w_filler_rows; | |
| 346 #endif | |
| 347 loff.height = 0; | |
| 348 while (loff.lnum < curwin->w_botline | |
| 349 #ifdef FEAT_DIFF | |
| 350 && (loff.lnum + 1 < curwin->w_botline || loff.fill == 0) | |
| 351 #endif | |
| 352 ) | |
| 353 { | |
| 354 n += loff.height; | |
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355 if (n >= *so_ptr) |
| 7 | 356 break; |
| 357 botline_forw(&loff); | |
| 358 } | |
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359 if (n >= *so_ptr) |
| 7 | 360 /* sufficient context, no need to scroll */ |
| 361 check_botline = FALSE; | |
| 1744 | 362 } |
| 363 else | |
| 364 /* sufficient context, no need to scroll */ | |
| 365 check_botline = FALSE; | |
| 7 | 366 } |
| 367 if (check_botline) | |
| 368 { | |
| 369 #ifdef FEAT_FOLDING | |
| 370 if (hasAnyFolding(curwin)) | |
| 371 { | |
| 372 /* Count the number of logical lines between the cursor and | |
|
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373 * botline - scrolloff (approximation of how much will be |
| 7 | 374 * scrolled). */ |
| 375 line_count = 0; | |
| 376 for (lnum = curwin->w_cursor.lnum; | |
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377 lnum >= curwin->w_botline - *so_ptr; --lnum) |
| 7 | 378 { |
| 379 ++line_count; | |
| 380 /* stop at end of file or when we know we are far off */ | |
| 381 if (lnum <= 0 || line_count > curwin->w_height + 1) | |
| 382 break; | |
| 383 (void)hasFolding(lnum, &lnum, NULL); | |
| 384 } | |
| 385 } | |
| 386 else | |
| 387 #endif | |
| 388 line_count = curwin->w_cursor.lnum - curwin->w_botline | |
|
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389 + 1 + *so_ptr; |
| 7 | 390 if (line_count <= curwin->w_height + 1) |
| 532 | 391 scroll_cursor_bot(scrolljump_value(), FALSE); |
| 7 | 392 else |
| 393 scroll_cursor_halfway(FALSE); | |
| 394 } | |
| 395 } | |
| 396 } | |
| 397 curwin->w_valid |= VALID_TOPLINE; | |
| 398 | |
| 399 /* | |
| 400 * Need to redraw when topline changed. | |
| 401 */ | |
| 402 if (curwin->w_topline != old_topline | |
| 403 #ifdef FEAT_DIFF | |
| 404 || curwin->w_topfill != old_topfill | |
| 405 #endif | |
| 406 ) | |
| 407 { | |
| 3318 | 408 dollar_vcol = -1; |
| 740 | 409 if (curwin->w_skipcol != 0) |
| 7 | 410 { |
| 411 curwin->w_skipcol = 0; | |
| 412 redraw_later(NOT_VALID); | |
| 413 } | |
| 414 else | |
| 415 redraw_later(VALID); | |
| 416 /* May need to set w_skipcol when cursor in w_topline. */ | |
| 417 if (curwin->w_cursor.lnum == curwin->w_topline) | |
| 418 validate_cursor(); | |
| 419 } | |
| 420 | |
| 421 #ifdef FEAT_MOUSE | |
|
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422 *so_ptr = save_so; |
| 7 | 423 #endif |
| 424 } | |
| 425 | |
| 426 /* | |
| 532 | 427 * Return the scrolljump value to use for the current window. |
| 428 * When 'scrolljump' is positive use it as-is. | |
| 429 * When 'scrolljump' is negative use it as a percentage of the window height. | |
| 430 */ | |
| 431 static int | |
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432 scrolljump_value(void) |
| 532 | 433 { |
| 434 if (p_sj >= 0) | |
| 435 return (int)p_sj; | |
| 436 return (curwin->w_height * -p_sj) / 100; | |
| 437 } | |
| 438 | |
| 439 /* | |
| 7 | 440 * Return TRUE when there are not 'scrolloff' lines above the cursor for the |
| 441 * current window. | |
| 442 */ | |
| 443 static int | |
|
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444 check_top_offset(void) |
| 7 | 445 { |
| 446 lineoff_T loff; | |
| 447 int n; | |
|
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448 long so = get_scrolloff_value(); |
| 7 | 449 |
|
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450 if (curwin->w_cursor.lnum < curwin->w_topline + so |
| 7 | 451 #ifdef FEAT_FOLDING |
| 452 || hasAnyFolding(curwin) | |
| 453 #endif | |
| 454 ) | |
| 455 { | |
| 456 loff.lnum = curwin->w_cursor.lnum; | |
| 457 #ifdef FEAT_DIFF | |
| 458 loff.fill = 0; | |
| 459 n = curwin->w_topfill; /* always have this context */ | |
| 460 #else | |
| 461 n = 0; | |
| 462 #endif | |
| 463 /* Count the visible screen lines above the cursor line. */ | |
|
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464 while (n < so) |
| 7 | 465 { |
| 466 topline_back(&loff); | |
| 467 /* Stop when included a line above the window. */ | |
| 468 if (loff.lnum < curwin->w_topline | |
| 469 #ifdef FEAT_DIFF | |
| 470 || (loff.lnum == curwin->w_topline && loff.fill > 0) | |
| 471 #endif | |
| 472 ) | |
| 473 break; | |
| 474 n += loff.height; | |
| 475 } | |
|
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476 if (n < so) |
| 7 | 477 return TRUE; |
| 478 } | |
| 479 return FALSE; | |
| 480 } | |
| 481 | |
| 482 void | |
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483 update_curswant(void) |
| 7 | 484 { |
| 485 if (curwin->w_set_curswant) | |
| 486 { | |
| 487 validate_virtcol(); | |
| 488 curwin->w_curswant = curwin->w_virtcol; | |
| 489 curwin->w_set_curswant = FALSE; | |
| 490 } | |
| 491 } | |
| 492 | |
| 493 /* | |
| 494 * Check if the cursor has moved. Set the w_valid flag accordingly. | |
| 495 */ | |
| 496 void | |
|
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497 check_cursor_moved(win_T *wp) |
| 7 | 498 { |
| 499 if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum) | |
| 500 { | |
| 501 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
| 502 |VALID_CHEIGHT|VALID_CROW|VALID_TOPLINE); | |
| 503 wp->w_valid_cursor = wp->w_cursor; | |
| 504 wp->w_valid_leftcol = wp->w_leftcol; | |
| 505 } | |
| 506 else if (wp->w_cursor.col != wp->w_valid_cursor.col | |
| 507 || wp->w_leftcol != wp->w_valid_leftcol | |
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508 || wp->w_cursor.coladd != wp->w_valid_cursor.coladd) |
| 7 | 509 { |
| 510 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL); | |
| 511 wp->w_valid_cursor.col = wp->w_cursor.col; | |
| 512 wp->w_valid_leftcol = wp->w_leftcol; | |
| 513 wp->w_valid_cursor.coladd = wp->w_cursor.coladd; | |
| 514 } | |
| 515 } | |
| 516 | |
| 517 /* | |
| 518 * Call this function when some window settings have changed, which require | |
| 519 * the cursor position, botline and topline to be recomputed and the window to | |
| 520 * be redrawn. E.g, when changing the 'wrap' option or folding. | |
| 521 */ | |
| 522 void | |
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523 changed_window_setting(void) |
| 7 | 524 { |
| 525 changed_window_setting_win(curwin); | |
| 526 } | |
| 527 | |
| 528 void | |
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529 changed_window_setting_win(win_T *wp) |
| 7 | 530 { |
| 531 wp->w_lines_valid = 0; | |
| 532 changed_line_abv_curs_win(wp); | |
| 533 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP|VALID_TOPLINE); | |
| 534 redraw_win_later(wp, NOT_VALID); | |
| 535 } | |
| 536 | |
| 537 /* | |
| 538 * Set wp->w_topline to a certain number. | |
| 539 */ | |
| 540 void | |
|
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changeset
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541 set_topline(win_T *wp, linenr_T lnum) |
| 7 | 542 { |
| 543 #ifdef FEAT_FOLDING | |
| 544 /* go to first of folded lines */ | |
| 545 (void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); | |
| 546 #endif | |
| 547 /* Approximate the value of w_botline */ | |
| 548 wp->w_botline += lnum - wp->w_topline; | |
| 549 wp->w_topline = lnum; | |
| 1744 | 550 wp->w_topline_was_set = TRUE; |
| 7 | 551 #ifdef FEAT_DIFF |
| 552 wp->w_topfill = 0; | |
| 553 #endif | |
| 554 wp->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_TOPLINE); | |
| 555 /* Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked. */ | |
| 556 redraw_later(VALID); | |
| 557 } | |
| 558 | |
| 559 /* | |
| 560 * Call this function when the length of the cursor line (in screen | |
| 561 * characters) has changed, and the change is before the cursor. | |
| 562 * Need to take care of w_botline separately! | |
| 563 */ | |
| 564 void | |
|
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565 changed_cline_bef_curs(void) |
| 7 | 566 { |
| 567 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
| 568 |VALID_CHEIGHT|VALID_TOPLINE); | |
| 569 } | |
| 570 | |
| 571 void | |
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572 changed_cline_bef_curs_win(win_T *wp) |
| 7 | 573 { |
| 574 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
| 575 |VALID_CHEIGHT|VALID_TOPLINE); | |
| 576 } | |
| 577 | |
| 578 /* | |
| 579 * Call this function when the length of a line (in screen characters) above | |
| 580 * the cursor have changed. | |
| 581 * Need to take care of w_botline separately! | |
| 582 */ | |
| 583 void | |
|
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584 changed_line_abv_curs(void) |
| 7 | 585 { |
| 586 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW | |
| 587 |VALID_CHEIGHT|VALID_TOPLINE); | |
| 588 } | |
| 589 | |
| 590 void | |
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|
591 changed_line_abv_curs_win(win_T *wp) |
| 7 | 592 { |
| 593 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW | |
| 594 |VALID_CHEIGHT|VALID_TOPLINE); | |
| 595 } | |
| 596 | |
| 597 /* | |
| 598 * Make sure the value of curwin->w_botline is valid. | |
| 599 */ | |
| 600 void | |
|
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601 validate_botline(void) |
| 7 | 602 { |
| 603 if (!(curwin->w_valid & VALID_BOTLINE)) | |
| 604 comp_botline(curwin); | |
| 605 } | |
| 606 | |
| 607 /* | |
| 608 * Mark curwin->w_botline as invalid (because of some change in the buffer). | |
| 609 */ | |
| 610 void | |
|
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|
611 invalidate_botline(void) |
| 7 | 612 { |
| 613 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 614 } | |
| 615 | |
| 616 void | |
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617 invalidate_botline_win(win_T *wp) |
| 7 | 618 { |
| 619 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 620 } | |
| 621 | |
| 622 void | |
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623 approximate_botline_win( |
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changeset
|
624 win_T *wp) |
| 7 | 625 { |
| 626 wp->w_valid &= ~VALID_BOTLINE; | |
| 627 } | |
| 628 | |
| 629 /* | |
| 630 * Return TRUE if curwin->w_wrow and curwin->w_wcol are valid. | |
| 631 */ | |
| 632 int | |
|
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633 cursor_valid(void) |
| 7 | 634 { |
| 635 check_cursor_moved(curwin); | |
| 636 return ((curwin->w_valid & (VALID_WROW|VALID_WCOL)) == | |
| 637 (VALID_WROW|VALID_WCOL)); | |
| 638 } | |
| 639 | |
| 640 /* | |
| 641 * Validate cursor position. Makes sure w_wrow and w_wcol are valid. | |
| 642 * w_topline must be valid, you may need to call update_topline() first! | |
| 643 */ | |
| 644 void | |
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645 validate_cursor(void) |
| 7 | 646 { |
| 647 check_cursor_moved(curwin); | |
| 648 if ((curwin->w_valid & (VALID_WCOL|VALID_WROW)) != (VALID_WCOL|VALID_WROW)) | |
| 649 curs_columns(TRUE); | |
| 650 } | |
| 651 | |
| 652 #if defined(FEAT_GUI) || defined(PROTO) | |
| 653 /* | |
| 654 * validate w_cline_row. | |
| 655 */ | |
| 656 void | |
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657 validate_cline_row(void) |
| 7 | 658 { |
| 659 /* | |
| 660 * First make sure that w_topline is valid (after moving the cursor). | |
| 661 */ | |
| 662 update_topline(); | |
| 663 check_cursor_moved(curwin); | |
| 664 if (!(curwin->w_valid & VALID_CROW)) | |
| 6441 | 665 curs_rows(curwin); |
| 7 | 666 } |
| 667 #endif | |
| 668 | |
| 669 /* | |
| 670 * Compute wp->w_cline_row and wp->w_cline_height, based on the current value | |
|
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671 * of wp->w_topline. |
| 7 | 672 */ |
| 673 static void | |
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674 curs_rows(win_T *wp) |
| 7 | 675 { |
| 676 linenr_T lnum; | |
| 677 int i; | |
| 678 int all_invalid; | |
| 679 int valid; | |
| 680 #ifdef FEAT_FOLDING | |
| 681 long fold_count; | |
| 682 #endif | |
| 683 | |
| 684 /* Check if wp->w_lines[].wl_size is invalid */ | |
| 685 all_invalid = (!redrawing() | |
| 686 || wp->w_lines_valid == 0 | |
| 687 || wp->w_lines[0].wl_lnum > wp->w_topline); | |
| 688 i = 0; | |
| 689 wp->w_cline_row = 0; | |
| 690 for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i) | |
| 691 { | |
| 692 valid = FALSE; | |
| 693 if (!all_invalid && i < wp->w_lines_valid) | |
| 694 { | |
| 695 if (wp->w_lines[i].wl_lnum < lnum || !wp->w_lines[i].wl_valid) | |
| 696 continue; /* skip changed or deleted lines */ | |
| 697 if (wp->w_lines[i].wl_lnum == lnum) | |
| 698 { | |
| 699 #ifdef FEAT_FOLDING | |
| 700 /* Check for newly inserted lines below this row, in which | |
| 701 * case we need to check for folded lines. */ | |
| 702 if (!wp->w_buffer->b_mod_set | |
| 703 || wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum | |
| 704 || wp->w_buffer->b_mod_top | |
| 705 > wp->w_lines[i].wl_lastlnum + 1) | |
| 706 #endif | |
| 707 valid = TRUE; | |
| 708 } | |
| 709 else if (wp->w_lines[i].wl_lnum > lnum) | |
| 710 --i; /* hold at inserted lines */ | |
| 711 } | |
| 712 if (valid | |
| 713 #ifdef FEAT_DIFF | |
| 714 && (lnum != wp->w_topline || !wp->w_p_diff) | |
| 715 #endif | |
| 716 ) | |
| 717 { | |
| 718 #ifdef FEAT_FOLDING | |
| 719 lnum = wp->w_lines[i].wl_lastlnum + 1; | |
| 720 /* Cursor inside folded lines, don't count this row */ | |
| 721 if (lnum > wp->w_cursor.lnum) | |
| 722 break; | |
| 723 #else | |
| 724 ++lnum; | |
| 725 #endif | |
| 726 wp->w_cline_row += wp->w_lines[i].wl_size; | |
| 727 } | |
| 728 else | |
| 729 { | |
| 730 #ifdef FEAT_FOLDING | |
| 731 fold_count = foldedCount(wp, lnum, NULL); | |
| 732 if (fold_count) | |
| 733 { | |
| 734 lnum += fold_count; | |
| 735 if (lnum > wp->w_cursor.lnum) | |
| 736 break; | |
| 737 ++wp->w_cline_row; | |
| 738 } | |
| 739 else | |
| 740 #endif | |
| 741 #ifdef FEAT_DIFF | |
| 742 if (lnum == wp->w_topline) | |
| 743 wp->w_cline_row += plines_win_nofill(wp, lnum++, TRUE) | |
| 744 + wp->w_topfill; | |
| 745 else | |
| 746 #endif | |
| 747 wp->w_cline_row += plines_win(wp, lnum++, TRUE); | |
| 748 } | |
| 749 } | |
| 750 | |
| 751 check_cursor_moved(wp); | |
| 752 if (!(wp->w_valid & VALID_CHEIGHT)) | |
| 753 { | |
| 754 if (all_invalid | |
| 755 || i == wp->w_lines_valid | |
| 756 || (i < wp->w_lines_valid | |
| 757 && (!wp->w_lines[i].wl_valid | |
| 758 || wp->w_lines[i].wl_lnum != wp->w_cursor.lnum))) | |
| 759 { | |
| 760 #ifdef FEAT_DIFF | |
| 761 if (wp->w_cursor.lnum == wp->w_topline) | |
| 762 wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum, | |
| 763 TRUE) + wp->w_topfill; | |
| 764 else | |
| 765 #endif | |
| 766 wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE); | |
| 767 #ifdef FEAT_FOLDING | |
| 768 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum, | |
| 769 NULL, NULL, TRUE, NULL); | |
| 770 #endif | |
| 771 } | |
| 772 else if (i > wp->w_lines_valid) | |
| 773 { | |
| 774 /* a line that is too long to fit on the last screen line */ | |
| 775 wp->w_cline_height = 0; | |
| 776 #ifdef FEAT_FOLDING | |
| 777 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum, | |
| 778 NULL, NULL, TRUE, NULL); | |
| 779 #endif | |
| 780 } | |
| 781 else | |
| 782 { | |
| 783 wp->w_cline_height = wp->w_lines[i].wl_size; | |
| 784 #ifdef FEAT_FOLDING | |
| 785 wp->w_cline_folded = wp->w_lines[i].wl_folded; | |
| 786 #endif | |
| 787 } | |
| 788 } | |
| 789 | |
| 5764 | 790 redraw_for_cursorline(curwin); |
| 7 | 791 wp->w_valid |= VALID_CROW|VALID_CHEIGHT; |
| 792 | |
| 793 } | |
| 794 | |
| 795 /* | |
| 796 * Validate curwin->w_virtcol only. | |
| 797 */ | |
| 798 void | |
|
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799 validate_virtcol(void) |
| 7 | 800 { |
| 801 validate_virtcol_win(curwin); | |
| 802 } | |
| 803 | |
| 804 /* | |
| 805 * Validate wp->w_virtcol only. | |
| 806 */ | |
| 807 void | |
|
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808 validate_virtcol_win(win_T *wp) |
| 7 | 809 { |
| 810 check_cursor_moved(wp); | |
| 811 if (!(wp->w_valid & VALID_VIRTCOL)) | |
| 812 { | |
| 813 getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL); | |
| 814 wp->w_valid |= VALID_VIRTCOL; | |
| 740 | 815 #ifdef FEAT_SYN_HL |
|
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816 if (wp->w_p_cuc && !pum_visible()) |
| 740 | 817 redraw_win_later(wp, SOME_VALID); |
| 818 #endif | |
| 7 | 819 } |
| 820 } | |
| 821 | |
| 822 /* | |
| 823 * Validate curwin->w_cline_height only. | |
| 824 */ | |
| 825 static void | |
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826 validate_cheight(void) |
| 7 | 827 { |
| 828 check_cursor_moved(curwin); | |
| 829 if (!(curwin->w_valid & VALID_CHEIGHT)) | |
| 830 { | |
| 831 #ifdef FEAT_DIFF | |
| 832 if (curwin->w_cursor.lnum == curwin->w_topline) | |
| 833 curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum) | |
| 834 + curwin->w_topfill; | |
| 835 else | |
| 836 #endif | |
| 837 curwin->w_cline_height = plines(curwin->w_cursor.lnum); | |
| 838 #ifdef FEAT_FOLDING | |
| 839 curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL); | |
| 840 #endif | |
| 841 curwin->w_valid |= VALID_CHEIGHT; | |
| 842 } | |
| 843 } | |
| 844 | |
| 845 /* | |
| 1668 | 846 * Validate w_wcol and w_virtcol only. |
| 7 | 847 */ |
| 848 void | |
|
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849 validate_cursor_col(void) |
| 7 | 850 { |
| 851 colnr_T off; | |
| 852 colnr_T col; | |
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853 int width; |
| 7 | 854 |
| 855 validate_virtcol(); | |
| 856 if (!(curwin->w_valid & VALID_WCOL)) | |
| 857 { | |
| 858 col = curwin->w_virtcol; | |
| 859 off = curwin_col_off(); | |
| 860 col += off; | |
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861 width = curwin->w_width - off + curwin_col_off2(); |
| 7 | 862 |
| 863 /* long line wrapping, adjust curwin->w_wrow */ | |
| 1668 | 864 if (curwin->w_p_wrap |
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865 && col >= (colnr_T)curwin->w_width |
|
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866 && width > 0) |
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867 /* use same formula as what is used in curs_columns() */ |
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868 col -= ((col - curwin->w_width) / width + 1) * width; |
| 1668 | 869 if (col > (int)curwin->w_leftcol) |
| 870 col -= curwin->w_leftcol; | |
| 871 else | |
| 872 col = 0; | |
| 7 | 873 curwin->w_wcol = col; |
| 1668 | 874 |
| 7 | 875 curwin->w_valid |= VALID_WCOL; |
| 876 } | |
| 877 } | |
| 878 | |
| 879 /* | |
|
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880 * Compute offset of a window, occupied by absolute or relative line number, |
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881 * fold column and sign column (these don't move when scrolling horizontally). |
| 7 | 882 */ |
| 883 int | |
|
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884 win_col_off(win_T *wp) |
| 7 | 885 { |
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886 return (((wp->w_p_nu || wp->w_p_rnu) ? number_width(wp) + 1 : 0) |
| 7 | 887 #ifdef FEAT_CMDWIN |
| 888 + (cmdwin_type == 0 || wp != curwin ? 0 : 1) | |
| 889 #endif | |
| 890 #ifdef FEAT_FOLDING | |
| 891 + wp->w_p_fdc | |
| 892 #endif | |
| 893 #ifdef FEAT_SIGNS | |
|
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894 + (signcolumn_on(wp) ? 2 : 0) |
| 7 | 895 #endif |
| 896 ); | |
| 897 } | |
| 898 | |
| 899 int | |
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900 curwin_col_off(void) |
| 7 | 901 { |
| 902 return win_col_off(curwin); | |
| 903 } | |
| 904 | |
| 905 /* | |
| 906 * Return the difference in column offset for the second screen line of a | |
|
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907 * wrapped line. It's 8 if 'number' or 'relativenumber' is on and 'n' is in |
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908 * 'cpoptions'. |
| 7 | 909 */ |
| 910 int | |
|
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911 win_col_off2(win_T *wp) |
| 7 | 912 { |
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913 if ((wp->w_p_nu || wp->w_p_rnu) && vim_strchr(p_cpo, CPO_NUMCOL) != NULL) |
| 13 | 914 return number_width(wp) + 1; |
| 7 | 915 return 0; |
| 916 } | |
| 917 | |
| 918 int | |
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919 curwin_col_off2(void) |
| 7 | 920 { |
| 921 return win_col_off2(curwin); | |
| 922 } | |
| 923 | |
| 924 /* | |
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925 * Compute curwin->w_wcol and curwin->w_virtcol. |
| 7 | 926 * Also updates curwin->w_wrow and curwin->w_cline_row. |
| 927 * Also updates curwin->w_leftcol. | |
| 928 */ | |
| 929 void | |
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930 curs_columns( |
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931 int may_scroll) /* when TRUE, may scroll horizontally */ |
| 7 | 932 { |
| 933 int diff; | |
| 934 int extra; /* offset for first screen line */ | |
| 935 int off_left, off_right; | |
| 936 int n; | |
| 937 int p_lines; | |
| 938 int width = 0; | |
| 939 int textwidth; | |
| 940 int new_leftcol; | |
| 941 colnr_T startcol; | |
| 942 colnr_T endcol; | |
| 943 colnr_T prev_skipcol; | |
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944 long so = get_scrolloff_value(); |
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945 long siso = get_sidescrolloff_value(); |
| 7 | 946 |
| 947 /* | |
| 948 * First make sure that w_topline is valid (after moving the cursor). | |
| 949 */ | |
| 950 update_topline(); | |
| 951 | |
| 952 /* | |
| 953 * Next make sure that w_cline_row is valid. | |
| 954 */ | |
| 955 if (!(curwin->w_valid & VALID_CROW)) | |
| 6441 | 956 curs_rows(curwin); |
| 7 | 957 |
| 958 /* | |
| 959 * Compute the number of virtual columns. | |
| 960 */ | |
| 961 #ifdef FEAT_FOLDING | |
| 962 if (curwin->w_cline_folded) | |
| 963 /* In a folded line the cursor is always in the first column */ | |
| 964 startcol = curwin->w_virtcol = endcol = curwin->w_leftcol; | |
| 965 else | |
| 966 #endif | |
| 967 getvvcol(curwin, &curwin->w_cursor, | |
| 968 &startcol, &(curwin->w_virtcol), &endcol); | |
| 969 | |
| 970 /* remove '$' from change command when cursor moves onto it */ | |
| 971 if (startcol > dollar_vcol) | |
| 3318 | 972 dollar_vcol = -1; |
| 7 | 973 |
| 974 extra = curwin_col_off(); | |
| 975 curwin->w_wcol = curwin->w_virtcol + extra; | |
| 976 endcol += extra; | |
| 977 | |
| 978 /* | |
| 979 * Now compute w_wrow, counting screen lines from w_cline_row. | |
| 980 */ | |
| 981 curwin->w_wrow = curwin->w_cline_row; | |
| 982 | |
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983 textwidth = curwin->w_width - extra; |
| 7 | 984 if (textwidth <= 0) |
| 985 { | |
| 986 /* No room for text, put cursor in last char of window. */ | |
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987 curwin->w_wcol = curwin->w_width - 1; |
| 7 | 988 curwin->w_wrow = curwin->w_height - 1; |
| 989 } | |
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990 else if (curwin->w_p_wrap && curwin->w_width != 0) |
| 7 | 991 { |
| 992 width = textwidth + curwin_col_off2(); | |
| 993 | |
| 994 /* long line wrapping, adjust curwin->w_wrow */ | |
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995 if (curwin->w_wcol >= curwin->w_width) |
| 7 | 996 { |
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997 /* this same formula is used in validate_cursor_col() */ |
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998 n = (curwin->w_wcol - curwin->w_width) / width + 1; |
| 7 | 999 curwin->w_wcol -= n * width; |
| 1000 curwin->w_wrow += n; | |
| 1001 | |
| 1002 #ifdef FEAT_LINEBREAK | |
| 1003 /* When cursor wraps to first char of next line in Insert | |
| 1004 * mode, the 'showbreak' string isn't shown, backup to first | |
| 1005 * column */ | |
| 1006 if (*p_sbr && *ml_get_cursor() == NUL | |
| 1007 && curwin->w_wcol == (int)vim_strsize(p_sbr)) | |
| 1008 curwin->w_wcol = 0; | |
| 1009 #endif | |
| 1010 } | |
| 1011 } | |
| 1012 | |
| 1013 /* No line wrapping: compute curwin->w_leftcol if scrolling is on and line | |
| 1014 * is not folded. | |
| 1015 * If scrolling is off, curwin->w_leftcol is assumed to be 0 */ | |
| 3263 | 1016 else if (may_scroll |
| 7 | 1017 #ifdef FEAT_FOLDING |
| 1018 && !curwin->w_cline_folded | |
| 1019 #endif | |
| 1020 ) | |
| 1021 { | |
| 1022 /* | |
| 1023 * If Cursor is left of the screen, scroll rightwards. | |
| 1024 * If Cursor is right of the screen, scroll leftwards | |
| 1025 * If we get closer to the edge than 'sidescrolloff', scroll a little | |
| 1026 * extra | |
| 1027 */ | |
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1028 off_left = (int)startcol - (int)curwin->w_leftcol - siso; |
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1029 off_right = (int)endcol - (int)(curwin->w_leftcol + curwin->w_width |
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1030 - siso) + 1; |
| 7 | 1031 if (off_left < 0 || off_right > 0) |
| 1032 { | |
| 1033 if (off_left < 0) | |
| 1034 diff = -off_left; | |
| 1035 else | |
| 1036 diff = off_right; | |
| 1037 | |
| 1038 /* When far off or not enough room on either side, put cursor in | |
| 1039 * middle of window. */ | |
| 1040 if (p_ss == 0 || diff >= textwidth / 2 || off_right >= off_left) | |
| 1041 new_leftcol = curwin->w_wcol - extra - textwidth / 2; | |
| 1042 else | |
| 1043 { | |
| 1044 if (diff < p_ss) | |
| 1045 diff = p_ss; | |
| 1046 if (off_left < 0) | |
| 1047 new_leftcol = curwin->w_leftcol - diff; | |
| 1048 else | |
| 1049 new_leftcol = curwin->w_leftcol + diff; | |
| 1050 } | |
| 1051 if (new_leftcol < 0) | |
| 1052 new_leftcol = 0; | |
| 1053 if (new_leftcol != (int)curwin->w_leftcol) | |
| 1054 { | |
| 1055 curwin->w_leftcol = new_leftcol; | |
| 1056 /* screen has to be redrawn with new curwin->w_leftcol */ | |
| 1057 redraw_later(NOT_VALID); | |
| 1058 } | |
| 1059 } | |
| 1060 curwin->w_wcol -= curwin->w_leftcol; | |
| 1061 } | |
| 1062 else if (curwin->w_wcol > (int)curwin->w_leftcol) | |
| 1063 curwin->w_wcol -= curwin->w_leftcol; | |
| 1064 else | |
| 1065 curwin->w_wcol = 0; | |
| 1066 | |
| 1067 #ifdef FEAT_DIFF | |
| 1068 /* Skip over filler lines. At the top use w_topfill, there | |
| 1069 * may be some filler lines above the window. */ | |
| 1070 if (curwin->w_cursor.lnum == curwin->w_topline) | |
| 1071 curwin->w_wrow += curwin->w_topfill; | |
| 1072 else | |
| 1073 curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum); | |
| 1074 #endif | |
| 1075 | |
| 1076 prev_skipcol = curwin->w_skipcol; | |
| 1077 | |
| 1078 p_lines = 0; | |
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1079 |
| 7 | 1080 if ((curwin->w_wrow >= curwin->w_height |
| 1081 || ((prev_skipcol > 0 | |
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|
1082 || curwin->w_wrow + so >= curwin->w_height) |
| 7 | 1083 && (p_lines = |
| 1084 #ifdef FEAT_DIFF | |
| 1085 plines_win_nofill | |
| 1086 #else | |
| 1087 plines_win | |
| 1088 #endif | |
| 1089 (curwin, curwin->w_cursor.lnum, FALSE)) | |
| 1090 - 1 >= curwin->w_height)) | |
| 1091 && curwin->w_height != 0 | |
| 1092 && curwin->w_cursor.lnum == curwin->w_topline | |
| 1093 && width > 0 | |
|
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|
1094 && curwin->w_width != 0) |
| 7 | 1095 { |
| 1096 /* Cursor past end of screen. Happens with a single line that does | |
| 1097 * not fit on screen. Find a skipcol to show the text around the | |
| 1098 * cursor. Avoid scrolling all the time. compute value of "extra": | |
|
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|
1099 * 1: Less than 'scrolloff' lines above |
|
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1100 * 2: Less than 'scrolloff' lines below |
| 7 | 1101 * 3: both of them */ |
| 1102 extra = 0; | |
|
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|
1103 if (curwin->w_skipcol + so * width > curwin->w_virtcol) |
| 7 | 1104 extra = 1; |
| 1105 /* Compute last display line of the buffer line that we want at the | |
| 1106 * bottom of the window. */ | |
| 1107 if (p_lines == 0) | |
| 1108 p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE); | |
| 1109 --p_lines; | |
|
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|
1110 if (p_lines > curwin->w_wrow + so) |
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|
1111 n = curwin->w_wrow + so; |
| 7 | 1112 else |
| 1113 n = p_lines; | |
| 1114 if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width) | |
| 1115 extra += 2; | |
| 1116 | |
|
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|
1117 if (extra == 3 || p_lines < so * 2) |
| 7 | 1118 { |
| 1119 /* not enough room for 'scrolloff', put cursor in the middle */ | |
| 1120 n = curwin->w_virtcol / width; | |
| 1121 if (n > curwin->w_height / 2) | |
| 1122 n -= curwin->w_height / 2; | |
| 1123 else | |
| 1124 n = 0; | |
| 1125 /* don't skip more than necessary */ | |
| 1126 if (n > p_lines - curwin->w_height + 1) | |
| 1127 n = p_lines - curwin->w_height + 1; | |
| 1128 curwin->w_skipcol = n * width; | |
| 1129 } | |
| 1130 else if (extra == 1) | |
| 1131 { | |
| 1132 /* less then 'scrolloff' lines above, decrease skipcol */ | |
|
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|
1133 extra = (curwin->w_skipcol + so * width - curwin->w_virtcol |
| 7 | 1134 + width - 1) / width; |
| 1135 if (extra > 0) | |
| 1136 { | |
| 1137 if ((colnr_T)(extra * width) > curwin->w_skipcol) | |
| 1138 extra = curwin->w_skipcol / width; | |
| 1139 curwin->w_skipcol -= extra * width; | |
| 1140 } | |
| 1141 } | |
| 1142 else if (extra == 2) | |
| 1143 { | |
| 1144 /* less then 'scrolloff' lines below, increase skipcol */ | |
| 1145 endcol = (n - curwin->w_height + 1) * width; | |
| 1146 while (endcol > curwin->w_virtcol) | |
| 1147 endcol -= width; | |
| 1148 if (endcol > curwin->w_skipcol) | |
| 1149 curwin->w_skipcol = endcol; | |
| 1150 } | |
| 1151 | |
| 1152 curwin->w_wrow -= curwin->w_skipcol / width; | |
| 1153 if (curwin->w_wrow >= curwin->w_height) | |
| 1154 { | |
| 1155 /* small window, make sure cursor is in it */ | |
| 1156 extra = curwin->w_wrow - curwin->w_height + 1; | |
| 1157 curwin->w_skipcol += extra * width; | |
| 1158 curwin->w_wrow -= extra; | |
| 1159 } | |
| 1160 | |
| 1161 extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width; | |
| 1162 if (extra > 0) | |
| 1163 win_ins_lines(curwin, 0, extra, FALSE, FALSE); | |
| 1164 else if (extra < 0) | |
|
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|
1165 win_del_lines(curwin, 0, -extra, FALSE, FALSE, 0); |
| 7 | 1166 } |
| 1167 else | |
| 1168 curwin->w_skipcol = 0; | |
| 1169 if (prev_skipcol != curwin->w_skipcol) | |
| 1170 redraw_later(NOT_VALID); | |
| 1171 | |
| 740 | 1172 #ifdef FEAT_SYN_HL |
| 5749 | 1173 /* Redraw when w_virtcol changes and 'cursorcolumn' is set */ |
| 1174 if (curwin->w_p_cuc && (curwin->w_valid & VALID_VIRTCOL) == 0 | |
|
17809
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|
1175 && !pum_visible()) |
| 5749 | 1176 redraw_later(SOME_VALID); |
|
2178
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|
1177 #endif |
| 740 | 1178 |
| 7 | 1179 curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL; |
| 1180 } | |
| 1181 | |
|
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|
1182 #if defined(FEAT_EVAL) || defined(PROTO) |
|
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1183 /* |
|
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1184 * Compute the screen position of text character at "pos" in window "wp" |
|
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1185 * The resulting values are one-based, zero when character is not visible. |
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1186 */ |
|
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|
1187 static void |
|
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|
1188 textpos2screenpos( |
|
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|
1189 win_T *wp, |
|
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1190 pos_T *pos, |
|
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|
1191 int *rowp, // screen row |
|
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|
1192 int *scolp, // start screen column |
|
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|
1193 int *ccolp, // cursor screen column |
|
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|
1194 int *ecolp) // end screen column |
|
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1195 { |
|
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1196 colnr_T scol = 0, ccol = 0, ecol = 0; |
|
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|
1197 int row = 0; |
|
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|
1198 int rowoff = 0; |
|
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|
1199 colnr_T coloff = 0; |
|
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|
1200 |
|
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|
1201 if (pos->lnum >= wp->w_topline && pos->lnum < wp->w_botline) |
|
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1202 { |
|
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|
1203 colnr_T off; |
|
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|
1204 colnr_T col; |
|
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|
1205 int width; |
|
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|
1206 |
|
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1207 row = plines_m_win(wp, wp->w_topline, pos->lnum - 1) + 1; |
|
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|
1208 getvcol(wp, pos, &scol, &ccol, &ecol); |
|
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1209 |
|
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1210 // similar to what is done in validate_cursor_col() |
|
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1211 col = scol; |
|
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1212 off = win_col_off(wp); |
|
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|
1213 col += off; |
|
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1214 width = wp->w_width - off + win_col_off2(wp); |
|
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|
1215 |
|
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|
1216 /* long line wrapping, adjust row */ |
|
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|
1217 if (wp->w_p_wrap |
|
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1218 && col >= (colnr_T)wp->w_width |
|
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1219 && width > 0) |
|
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|
1220 { |
|
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|
1221 /* use same formula as what is used in curs_columns() */ |
|
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|
1222 rowoff = ((col - wp->w_width) / width + 1); |
|
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|
1223 col -= rowoff * width; |
|
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1224 } |
|
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|
1225 col -= wp->w_leftcol; |
|
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|
1226 if (col >= width) |
|
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1227 col = -1; |
|
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1228 if (col >= 0) |
|
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1229 coloff = col - scol + wp->w_wincol + 1; |
|
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1230 else |
|
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1231 // character is left or right of the window |
|
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1232 row = scol = ccol = ecol = 0; |
|
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1233 } |
|
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1234 *rowp = wp->w_winrow + row + rowoff; |
|
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1235 *scolp = scol + coloff; |
|
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1236 *ccolp = ccol + coloff; |
|
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1237 *ecolp = ecol + coloff; |
|
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1238 } |
|
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|
1239 |
|
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|
1240 /* |
|
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1241 * "screenpos({winid}, {lnum}, {col})" function |
|
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1242 */ |
|
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|
1243 void |
|
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|
1244 f_screenpos(typval_T *argvars UNUSED, typval_T *rettv) |
|
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1245 { |
|
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1246 dict_T *dict; |
|
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|
1247 win_T *wp; |
|
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1248 pos_T pos; |
|
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1249 int row = 0; |
|
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|
1250 int scol = 0, ccol = 0, ecol = 0; |
|
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|
1251 |
|
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1252 if (rettv_dict_alloc(rettv) != OK) |
|
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|
1253 return; |
|
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|
1254 dict = rettv->vval.v_dict; |
|
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|
1255 |
|
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1256 wp = find_win_by_nr_or_id(&argvars[0]); |
|
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1257 if (wp == NULL) |
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1258 return; |
|
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1259 |
|
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1260 pos.lnum = tv_get_number(&argvars[1]); |
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1261 pos.col = tv_get_number(&argvars[2]) - 1; |
|
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1262 pos.coladd = 0; |
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1263 textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol); |
|
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1264 |
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1265 dict_add_number(dict, "row", row); |
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1266 dict_add_number(dict, "col", scol); |
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1267 dict_add_number(dict, "curscol", ccol); |
|
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1268 dict_add_number(dict, "endcol", ecol); |
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1269 } |
|
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1270 #endif |
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1271 |
| 7 | 1272 /* |
| 1273 * Scroll the current window down by "line_count" logical lines. "CTRL-Y" | |
| 1274 */ | |
| 1275 void | |
|
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1276 scrolldown( |
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|
1277 long line_count, |
|
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|
1278 int byfold UNUSED) /* TRUE: count a closed fold as one line */ |
| 7 | 1279 { |
| 1280 long done = 0; /* total # of physical lines done */ | |
| 1281 int wrow; | |
| 1282 int moved = FALSE; | |
| 1283 | |
| 1284 #ifdef FEAT_FOLDING | |
| 1285 linenr_T first; | |
| 1286 | |
| 1287 /* Make sure w_topline is at the first of a sequence of folded lines. */ | |
| 1288 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); | |
| 1289 #endif | |
| 1290 validate_cursor(); /* w_wrow needs to be valid */ | |
| 1291 while (line_count-- > 0) | |
| 1292 { | |
| 1293 #ifdef FEAT_DIFF | |
| 1980 | 1294 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline) |
| 1295 && curwin->w_topfill < curwin->w_height - 1) | |
| 7 | 1296 { |
| 1297 ++curwin->w_topfill; | |
| 1298 ++done; | |
| 1299 } | |
| 1300 else | |
| 1301 #endif | |
| 1302 { | |
| 1303 if (curwin->w_topline == 1) | |
| 1304 break; | |
| 1305 --curwin->w_topline; | |
| 1306 #ifdef FEAT_DIFF | |
| 1307 curwin->w_topfill = 0; | |
| 1308 #endif | |
| 1309 #ifdef FEAT_FOLDING | |
| 1310 /* A sequence of folded lines only counts for one logical line */ | |
| 1311 if (hasFolding(curwin->w_topline, &first, NULL)) | |
| 1312 { | |
| 1313 ++done; | |
| 1314 if (!byfold) | |
| 1315 line_count -= curwin->w_topline - first - 1; | |
| 1316 curwin->w_botline -= curwin->w_topline - first; | |
| 1317 curwin->w_topline = first; | |
| 1318 } | |
| 1319 else | |
| 1320 #endif | |
|
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1321 done += PLINES_NOFILL(curwin->w_topline); |
| 7 | 1322 } |
| 1323 --curwin->w_botline; /* approximate w_botline */ | |
| 1324 invalidate_botline(); | |
| 1325 } | |
| 1326 curwin->w_wrow += done; /* keep w_wrow updated */ | |
| 1327 curwin->w_cline_row += done; /* keep w_cline_row updated */ | |
| 1328 | |
| 1329 #ifdef FEAT_DIFF | |
| 1330 if (curwin->w_cursor.lnum == curwin->w_topline) | |
| 1331 curwin->w_cline_row = 0; | |
| 1332 check_topfill(curwin, TRUE); | |
| 1333 #endif | |
| 1334 | |
| 1335 /* | |
| 1336 * Compute the row number of the last row of the cursor line | |
| 1337 * and move the cursor onto the displayed part of the window. | |
| 1338 */ | |
| 1339 wrow = curwin->w_wrow; | |
|
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1340 if (curwin->w_p_wrap && curwin->w_width != 0) |
| 7 | 1341 { |
| 1342 validate_virtcol(); | |
| 1343 validate_cheight(); | |
| 1344 wrow += curwin->w_cline_height - 1 - | |
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1345 curwin->w_virtcol / curwin->w_width; |
| 7 | 1346 } |
| 1347 while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1) | |
| 1348 { | |
| 1349 #ifdef FEAT_FOLDING | |
| 1350 if (hasFolding(curwin->w_cursor.lnum, &first, NULL)) | |
| 1351 { | |
| 1352 --wrow; | |
| 1353 if (first == 1) | |
| 1354 curwin->w_cursor.lnum = 1; | |
| 1355 else | |
| 1356 curwin->w_cursor.lnum = first - 1; | |
| 1357 } | |
| 1358 else | |
| 1359 #endif | |
| 1360 wrow -= plines(curwin->w_cursor.lnum--); | |
| 1361 curwin->w_valid &= | |
| 1362 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL); | |
| 1363 moved = TRUE; | |
| 1364 } | |
| 1365 if (moved) | |
| 1366 { | |
| 1367 #ifdef FEAT_FOLDING | |
| 1368 /* Move cursor to first line of closed fold. */ | |
| 1369 foldAdjustCursor(); | |
| 1370 #endif | |
| 1371 coladvance(curwin->w_curswant); | |
| 1372 } | |
| 1373 } | |
| 1374 | |
| 1375 /* | |
| 1376 * Scroll the current window up by "line_count" logical lines. "CTRL-E" | |
| 1377 */ | |
| 1378 void | |
|
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1379 scrollup( |
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1380 long line_count, |
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|
1381 int byfold UNUSED) /* TRUE: count a closed fold as one line */ |
| 7 | 1382 { |
| 1383 #if defined(FEAT_FOLDING) || defined(FEAT_DIFF) | |
| 1384 linenr_T lnum; | |
| 1385 | |
| 1386 if ( | |
| 1387 # ifdef FEAT_FOLDING | |
| 1388 (byfold && hasAnyFolding(curwin)) | |
| 1389 # ifdef FEAT_DIFF | |
| 1390 || | |
| 1391 # endif | |
| 1392 # endif | |
| 1393 # ifdef FEAT_DIFF | |
| 1394 curwin->w_p_diff | |
| 1395 # endif | |
| 1396 ) | |
| 1397 { | |
| 1398 /* count each sequence of folded lines as one logical line */ | |
| 1399 lnum = curwin->w_topline; | |
| 1400 while (line_count--) | |
| 1401 { | |
| 1402 # ifdef FEAT_DIFF | |
| 1403 if (curwin->w_topfill > 0) | |
| 1404 --curwin->w_topfill; | |
| 1405 else | |
| 1406 # endif | |
| 1407 { | |
| 1408 # ifdef FEAT_FOLDING | |
| 1409 if (byfold) | |
| 1410 (void)hasFolding(lnum, NULL, &lnum); | |
| 1411 # endif | |
| 1412 if (lnum >= curbuf->b_ml.ml_line_count) | |
| 1413 break; | |
| 1414 ++lnum; | |
| 1415 # ifdef FEAT_DIFF | |
| 1416 curwin->w_topfill = diff_check_fill(curwin, lnum); | |
| 1417 # endif | |
| 1418 } | |
| 1419 } | |
| 1420 /* approximate w_botline */ | |
| 1421 curwin->w_botline += lnum - curwin->w_topline; | |
| 1422 curwin->w_topline = lnum; | |
| 1423 } | |
| 1424 else | |
| 1425 #endif | |
| 1426 { | |
| 1427 curwin->w_topline += line_count; | |
| 1428 curwin->w_botline += line_count; /* approximate w_botline */ | |
| 1429 } | |
| 1430 | |
| 1431 if (curwin->w_topline > curbuf->b_ml.ml_line_count) | |
| 1432 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
| 1433 if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1) | |
| 1434 curwin->w_botline = curbuf->b_ml.ml_line_count + 1; | |
| 1435 | |
| 1436 #ifdef FEAT_DIFF | |
| 1437 check_topfill(curwin, FALSE); | |
| 1438 #endif | |
| 1439 | |
| 1440 #ifdef FEAT_FOLDING | |
| 1441 if (hasAnyFolding(curwin)) | |
| 1442 /* Make sure w_topline is at the first of a sequence of folded lines. */ | |
| 1443 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); | |
| 1444 #endif | |
| 1445 | |
| 1446 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
| 1447 if (curwin->w_cursor.lnum < curwin->w_topline) | |
| 1448 { | |
| 1449 curwin->w_cursor.lnum = curwin->w_topline; | |
| 1450 curwin->w_valid &= | |
| 1451 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL); | |
| 1452 coladvance(curwin->w_curswant); | |
| 1453 } | |
| 1454 } | |
| 1455 | |
| 1456 #ifdef FEAT_DIFF | |
| 1457 /* | |
| 1458 * Don't end up with too many filler lines in the window. | |
| 1459 */ | |
| 1460 void | |
|
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1461 check_topfill( |
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1462 win_T *wp, |
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1463 int down) /* when TRUE scroll down when not enough space */ |
| 7 | 1464 { |
| 1465 int n; | |
| 1466 | |
| 1467 if (wp->w_topfill > 0) | |
| 1468 { | |
| 1469 n = plines_win_nofill(wp, wp->w_topline, TRUE); | |
| 1470 if (wp->w_topfill + n > wp->w_height) | |
| 1471 { | |
| 1472 if (down && wp->w_topline > 1) | |
| 1473 { | |
| 1474 --wp->w_topline; | |
| 1475 wp->w_topfill = 0; | |
| 1476 } | |
| 1477 else | |
| 1478 { | |
| 1479 wp->w_topfill = wp->w_height - n; | |
| 1480 if (wp->w_topfill < 0) | |
| 1481 wp->w_topfill = 0; | |
| 1482 } | |
| 1483 } | |
| 1484 } | |
| 1485 } | |
| 1486 | |
| 1487 /* | |
| 1488 * Use as many filler lines as possible for w_topline. Make sure w_topline | |
| 1489 * is still visible. | |
| 1490 */ | |
| 1491 static void | |
|
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changeset
|
1492 max_topfill(void) |
| 7 | 1493 { |
| 1494 int n; | |
| 1495 | |
| 1496 n = plines_nofill(curwin->w_topline); | |
| 1497 if (n >= curwin->w_height) | |
| 1498 curwin->w_topfill = 0; | |
| 1499 else | |
| 1500 { | |
| 1501 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
| 1502 if (curwin->w_topfill + n > curwin->w_height) | |
| 1503 curwin->w_topfill = curwin->w_height - n; | |
| 1504 } | |
| 1505 } | |
| 1506 #endif | |
| 1507 | |
| 1508 /* | |
| 1509 * Scroll the screen one line down, but don't do it if it would move the | |
| 1510 * cursor off the screen. | |
| 1511 */ | |
| 1512 void | |
|
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|
1513 scrolldown_clamp(void) |
| 7 | 1514 { |
| 1515 int end_row; | |
| 1516 #ifdef FEAT_DIFF | |
| 1517 int can_fill = (curwin->w_topfill | |
| 1518 < diff_check_fill(curwin, curwin->w_topline)); | |
| 1519 #endif | |
| 1520 | |
| 1521 if (curwin->w_topline <= 1 | |
| 1522 #ifdef FEAT_DIFF | |
| 1523 && !can_fill | |
| 1524 #endif | |
| 1525 ) | |
| 1526 return; | |
| 1527 | |
| 1528 validate_cursor(); /* w_wrow needs to be valid */ | |
| 1529 | |
| 1530 /* | |
| 1531 * Compute the row number of the last row of the cursor line | |
| 1532 * and make sure it doesn't go off the screen. Make sure the cursor | |
| 1533 * doesn't go past 'scrolloff' lines from the screen end. | |
| 1534 */ | |
| 1535 end_row = curwin->w_wrow; | |
| 1536 #ifdef FEAT_DIFF | |
| 1537 if (can_fill) | |
| 1538 ++end_row; | |
| 1539 else | |
| 1540 end_row += plines_nofill(curwin->w_topline - 1); | |
| 1541 #else | |
| 1542 end_row += plines(curwin->w_topline - 1); | |
| 1543 #endif | |
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1544 if (curwin->w_p_wrap && curwin->w_width != 0) |
| 7 | 1545 { |
| 1546 validate_cheight(); | |
| 1547 validate_virtcol(); | |
| 1548 end_row += curwin->w_cline_height - 1 - | |
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1549 curwin->w_virtcol / curwin->w_width; |
| 7 | 1550 } |
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1551 if (end_row < curwin->w_height - get_scrolloff_value()) |
| 7 | 1552 { |
| 1553 #ifdef FEAT_DIFF | |
| 1554 if (can_fill) | |
| 1555 { | |
| 1556 ++curwin->w_topfill; | |
| 1557 check_topfill(curwin, TRUE); | |
| 1558 } | |
| 1559 else | |
| 1560 { | |
| 1561 --curwin->w_topline; | |
| 1562 curwin->w_topfill = 0; | |
| 1563 } | |
| 1564 #else | |
| 1565 --curwin->w_topline; | |
| 1566 #endif | |
| 1567 #ifdef FEAT_FOLDING | |
| 7009 | 1568 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
| 7 | 1569 #endif |
| 1570 --curwin->w_botline; /* approximate w_botline */ | |
| 1571 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
| 1572 } | |
| 1573 } | |
| 1574 | |
| 1575 /* | |
| 1576 * Scroll the screen one line up, but don't do it if it would move the cursor | |
| 1577 * off the screen. | |
| 1578 */ | |
| 1579 void | |
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1580 scrollup_clamp(void) |
| 7 | 1581 { |
| 1582 int start_row; | |
| 1583 | |
| 1584 if (curwin->w_topline == curbuf->b_ml.ml_line_count | |
| 1585 #ifdef FEAT_DIFF | |
| 1586 && curwin->w_topfill == 0 | |
| 1587 #endif | |
| 1588 ) | |
| 1589 return; | |
| 1590 | |
| 1591 validate_cursor(); /* w_wrow needs to be valid */ | |
| 1592 | |
| 1593 /* | |
| 1594 * Compute the row number of the first row of the cursor line | |
| 1595 * and make sure it doesn't go off the screen. Make sure the cursor | |
| 1596 * doesn't go before 'scrolloff' lines from the screen start. | |
| 1597 */ | |
| 1598 #ifdef FEAT_DIFF | |
| 1599 start_row = curwin->w_wrow - plines_nofill(curwin->w_topline) | |
| 1600 - curwin->w_topfill; | |
| 1601 #else | |
| 1602 start_row = curwin->w_wrow - plines(curwin->w_topline); | |
| 1603 #endif | |
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1604 if (curwin->w_p_wrap && curwin->w_width != 0) |
| 7 | 1605 { |
| 1606 validate_virtcol(); | |
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1607 start_row -= curwin->w_virtcol / curwin->w_width; |
| 7 | 1608 } |
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1609 if (start_row >= get_scrolloff_value()) |
| 7 | 1610 { |
| 1611 #ifdef FEAT_DIFF | |
| 1612 if (curwin->w_topfill > 0) | |
| 1613 --curwin->w_topfill; | |
| 1614 else | |
| 1615 #endif | |
| 36 | 1616 { |
| 1617 #ifdef FEAT_FOLDING | |
| 1618 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline); | |
| 1619 #endif | |
| 7 | 1620 ++curwin->w_topline; |
| 36 | 1621 } |
| 7 | 1622 ++curwin->w_botline; /* approximate w_botline */ |
| 1623 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
| 1624 } | |
| 1625 } | |
| 1626 | |
| 1627 /* | |
| 1628 * Add one line above "lp->lnum". This can be a filler line, a closed fold or | |
| 1629 * a (wrapped) text line. Uses and sets "lp->fill". | |
| 1630 * Returns the height of the added line in "lp->height". | |
|
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updated for version 7.2.366
Bram Moolenaar <bram@zimbu.org>
parents:
2070
diff
changeset
|
1631 * Lines above the first one are incredibly high: MAXCOL. |
| 7 | 1632 */ |
| 1633 static void | |
|
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1634 topline_back(lineoff_T *lp) |
| 7 | 1635 { |
| 1636 #ifdef FEAT_DIFF | |
| 1637 if (lp->fill < diff_check_fill(curwin, lp->lnum)) | |
| 1638 { | |
| 1639 /* Add a filler line. */ | |
| 1640 ++lp->fill; | |
| 1641 lp->height = 1; | |
| 1642 } | |
| 1643 else | |
| 1644 #endif | |
| 1645 { | |
| 1646 --lp->lnum; | |
| 1647 #ifdef FEAT_DIFF | |
| 1648 lp->fill = 0; | |
| 1649 #endif | |
| 1650 if (lp->lnum < 1) | |
| 1651 lp->height = MAXCOL; | |
| 1652 else | |
| 1653 #ifdef FEAT_FOLDING | |
| 1654 if (hasFolding(lp->lnum, &lp->lnum, NULL)) | |
| 1655 /* Add a closed fold */ | |
| 1656 lp->height = 1; | |
| 1657 else | |
| 1658 #endif | |
|
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commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
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parents:
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diff
changeset
|
1659 lp->height = PLINES_NOFILL(lp->lnum); |
| 7 | 1660 } |
| 1661 } | |
| 1662 | |
| 1663 /* | |
| 1664 * Add one line below "lp->lnum". This can be a filler line, a closed fold or | |
| 1665 * a (wrapped) text line. Uses and sets "lp->fill". | |
| 1666 * Returns the height of the added line in "lp->height". | |
| 1667 * Lines below the last one are incredibly high. | |
| 1668 */ | |
| 1669 static void | |
|
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1670 botline_forw(lineoff_T *lp) |
| 7 | 1671 { |
| 1672 #ifdef FEAT_DIFF | |
| 1673 if (lp->fill < diff_check_fill(curwin, lp->lnum + 1)) | |
| 1674 { | |
| 1675 /* Add a filler line. */ | |
| 1676 ++lp->fill; | |
| 1677 lp->height = 1; | |
| 1678 } | |
| 1679 else | |
| 1680 #endif | |
| 1681 { | |
| 1682 ++lp->lnum; | |
| 1683 #ifdef FEAT_DIFF | |
| 1684 lp->fill = 0; | |
| 1685 #endif | |
| 1686 if (lp->lnum > curbuf->b_ml.ml_line_count) | |
| 1687 lp->height = MAXCOL; | |
| 1688 else | |
| 1689 #ifdef FEAT_FOLDING | |
| 1690 if (hasFolding(lp->lnum, NULL, &lp->lnum)) | |
| 1691 /* Add a closed fold */ | |
| 1692 lp->height = 1; | |
| 1693 else | |
| 1694 #endif | |
|
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commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
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parents:
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diff
changeset
|
1695 lp->height = PLINES_NOFILL(lp->lnum); |
| 7 | 1696 } |
| 1697 } | |
| 1698 | |
| 1699 #ifdef FEAT_DIFF | |
| 1700 /* | |
| 1701 * Switch from including filler lines below lp->lnum to including filler | |
| 1702 * lines above loff.lnum + 1. This keeps pointing to the same line. | |
| 1703 * When there are no filler lines nothing changes. | |
| 1704 */ | |
| 1705 static void | |
|
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
1706 botline_topline(lineoff_T *lp) |
| 7 | 1707 { |
| 1708 if (lp->fill > 0) | |
| 1709 { | |
| 1710 ++lp->lnum; | |
| 1711 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1; | |
| 1712 } | |
| 1713 } | |
| 1714 | |
| 1715 /* | |
| 1716 * Switch from including filler lines above lp->lnum to including filler | |
| 1717 * lines below loff.lnum - 1. This keeps pointing to the same line. | |
| 1718 * When there are no filler lines nothing changes. | |
| 1719 */ | |
| 1720 static void | |
|
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1721 topline_botline(lineoff_T *lp) |
| 7 | 1722 { |
| 1723 if (lp->fill > 0) | |
| 1724 { | |
| 1725 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1; | |
| 1726 --lp->lnum; | |
| 1727 } | |
| 1728 } | |
| 1729 #endif | |
| 1730 | |
| 1731 /* | |
| 1732 * Recompute topline to put the cursor at the top of the window. | |
| 1733 * Scroll at least "min_scroll" lines. | |
| 1734 * If "always" is TRUE, always set topline (for "zt"). | |
| 1735 */ | |
| 1736 void | |
|
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parents:
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diff
changeset
|
1737 scroll_cursor_top(int min_scroll, int always) |
| 7 | 1738 { |
| 1739 int scrolled = 0; | |
| 1740 int extra = 0; | |
| 1741 int used; | |
| 1742 int i; | |
| 1743 linenr_T top; /* just above displayed lines */ | |
| 1744 linenr_T bot; /* just below displayed lines */ | |
| 1745 linenr_T old_topline = curwin->w_topline; | |
| 1746 #ifdef FEAT_DIFF | |
| 1747 linenr_T old_topfill = curwin->w_topfill; | |
| 1748 #endif | |
| 1749 linenr_T new_topline; | |
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|
1750 int off = get_scrolloff_value(); |
| 7 | 1751 |
| 1752 #ifdef FEAT_MOUSE | |
| 1753 if (mouse_dragging > 0) | |
| 1754 off = mouse_dragging - 1; | |
| 1755 #endif | |
| 1756 | |
| 1757 /* | |
| 1758 * Decrease topline until: | |
| 1759 * - it has become 1 | |
| 1760 * - (part of) the cursor line is moved off the screen or | |
| 1761 * - moved at least 'scrolljump' lines and | |
| 1762 * - at least 'scrolloff' lines above and below the cursor | |
| 1763 */ | |
| 1764 validate_cheight(); | |
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changeset
|
1765 used = curwin->w_cline_height; /* includes filler lines above */ |
| 7 | 1766 if (curwin->w_cursor.lnum < curwin->w_topline) |
| 1767 scrolled = used; | |
| 1768 | |
| 1769 #ifdef FEAT_FOLDING | |
| 1770 if (hasFolding(curwin->w_cursor.lnum, &top, &bot)) | |
| 1771 { | |
| 1772 --top; | |
| 1773 ++bot; | |
| 1774 } | |
| 1775 else | |
| 1776 #endif | |
| 1777 { | |
| 1778 top = curwin->w_cursor.lnum - 1; | |
| 1779 bot = curwin->w_cursor.lnum + 1; | |
| 1780 } | |
| 1781 new_topline = top + 1; | |
| 1782 | |
| 1783 #ifdef FEAT_DIFF | |
|
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1784 /* "used" already contains the number of filler lines above, don't add it |
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1785 * again. |
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parents:
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1786 * Hide filler lines above cursor line by adding them to "extra". */ |
|
8a58dde655a8
commit https://github.com/vim/vim/commit/a09a2c5857ab854f0870573b5160da1964c905a2
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|
1787 extra += diff_check_fill(curwin, curwin->w_cursor.lnum); |
| 7 | 1788 #endif |
| 1789 | |
| 1790 /* | |
| 1791 * Check if the lines from "top" to "bot" fit in the window. If they do, | |
| 1792 * set new_topline and advance "top" and "bot" to include more lines. | |
| 1793 */ | |
| 1794 while (top > 0) | |
| 1795 { | |
| 1796 #ifdef FEAT_FOLDING | |
| 1797 if (hasFolding(top, &top, NULL)) | |
| 1798 /* count one logical line for a sequence of folded lines */ | |
| 1799 i = 1; | |
| 1800 else | |
| 1801 #endif | |
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parents:
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changeset
|
1802 i = PLINES_NOFILL(top); |
| 7 | 1803 used += i; |
| 1804 if (extra + i <= off && bot < curbuf->b_ml.ml_line_count) | |
| 1805 { | |
| 1806 #ifdef FEAT_FOLDING | |
| 1807 if (hasFolding(bot, NULL, &bot)) | |
| 1808 /* count one logical line for a sequence of folded lines */ | |
| 1809 ++used; | |
| 1810 else | |
| 1811 #endif | |
| 1812 used += plines(bot); | |
| 1813 } | |
| 1814 if (used > curwin->w_height) | |
| 1815 break; | |
| 1816 if (top < curwin->w_topline) | |
| 1817 scrolled += i; | |
| 1818 | |
| 1819 /* | |
| 1820 * If scrolling is needed, scroll at least 'sj' lines. | |
| 1821 */ | |
| 1822 if ((new_topline >= curwin->w_topline || scrolled > min_scroll) | |
| 1823 && extra >= off) | |
| 1824 break; | |
| 1825 | |
| 1826 extra += i; | |
| 1827 new_topline = top; | |
| 1828 --top; | |
| 1829 ++bot; | |
| 1830 } | |
| 1831 | |
| 1832 /* | |
| 1833 * If we don't have enough space, put cursor in the middle. | |
| 1834 * This makes sure we get the same position when using "k" and "j" | |
| 1835 * in a small window. | |
| 1836 */ | |
| 1837 if (used > curwin->w_height) | |
| 1838 scroll_cursor_halfway(FALSE); | |
| 1839 else | |
| 1840 { | |
| 1841 /* | |
| 1842 * If "always" is FALSE, only adjust topline to a lower value, higher | |
| 1843 * value may happen with wrapping lines | |
| 1844 */ | |
| 1845 if (new_topline < curwin->w_topline || always) | |
| 1846 curwin->w_topline = new_topline; | |
| 1847 if (curwin->w_topline > curwin->w_cursor.lnum) | |
| 1848 curwin->w_topline = curwin->w_cursor.lnum; | |
| 1849 #ifdef FEAT_DIFF | |
| 1850 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
| 1851 if (curwin->w_topfill > 0 && extra > off) | |
| 1852 { | |
| 1853 curwin->w_topfill -= extra - off; | |
| 1854 if (curwin->w_topfill < 0) | |
| 1855 curwin->w_topfill = 0; | |
| 1856 } | |
| 1857 check_topfill(curwin, FALSE); | |
| 1858 #endif | |
| 1859 if (curwin->w_topline != old_topline | |
| 1860 #ifdef FEAT_DIFF | |
| 1861 || curwin->w_topfill != old_topfill | |
| 1862 #endif | |
| 1863 ) | |
| 1864 curwin->w_valid &= | |
| 1865 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 1866 curwin->w_valid |= VALID_TOPLINE; | |
| 1867 } | |
| 1868 } | |
| 1869 | |
| 1870 /* | |
| 1871 * Set w_empty_rows and w_filler_rows for window "wp", having used up "used" | |
| 1872 * screen lines for text lines. | |
| 1873 */ | |
| 1874 void | |
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parents:
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diff
changeset
|
1875 set_empty_rows(win_T *wp, int used) |
| 7 | 1876 { |
| 1877 #ifdef FEAT_DIFF | |
| 1878 wp->w_filler_rows = 0; | |
| 1879 #endif | |
| 1880 if (used == 0) | |
| 1881 wp->w_empty_rows = 0; /* single line that doesn't fit */ | |
| 1882 else | |
| 1883 { | |
| 1884 wp->w_empty_rows = wp->w_height - used; | |
| 1885 #ifdef FEAT_DIFF | |
| 1886 if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count) | |
| 1887 { | |
| 1888 wp->w_filler_rows = diff_check_fill(wp, wp->w_botline); | |
| 1889 if (wp->w_empty_rows > wp->w_filler_rows) | |
| 1890 wp->w_empty_rows -= wp->w_filler_rows; | |
| 1891 else | |
| 1892 { | |
| 1893 wp->w_filler_rows = wp->w_empty_rows; | |
| 1894 wp->w_empty_rows = 0; | |
| 1895 } | |
| 1896 } | |
| 1897 #endif | |
| 1898 } | |
| 1899 } | |
| 1900 | |
| 1901 /* | |
| 1902 * Recompute topline to put the cursor at the bottom of the window. | |
| 1903 * Scroll at least "min_scroll" lines. | |
| 1904 * If "set_topbot" is TRUE, set topline and botline first (for "zb"). | |
| 1905 * This is messy stuff!!! | |
| 1906 */ | |
| 1907 void | |
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parents:
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diff
changeset
|
1908 scroll_cursor_bot(int min_scroll, int set_topbot) |
| 7 | 1909 { |
| 1910 int used; | |
| 1911 int scrolled = 0; | |
| 1912 int extra = 0; | |
| 1913 int i; | |
| 1914 linenr_T line_count; | |
| 1915 linenr_T old_topline = curwin->w_topline; | |
| 1916 lineoff_T loff; | |
| 1917 lineoff_T boff; | |
| 1918 #ifdef FEAT_DIFF | |
| 1919 int old_topfill = curwin->w_topfill; | |
| 1920 int fill_below_window; | |
| 1921 #endif | |
| 1922 linenr_T old_botline = curwin->w_botline; | |
| 1923 linenr_T old_valid = curwin->w_valid; | |
| 1924 int old_empty_rows = curwin->w_empty_rows; | |
| 1925 linenr_T cln; /* Cursor Line Number */ | |
|
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diff
changeset
|
1926 long so = get_scrolloff_value(); |
| 7 | 1927 |
| 1928 cln = curwin->w_cursor.lnum; | |
| 1929 if (set_topbot) | |
| 1930 { | |
| 1931 used = 0; | |
| 1932 curwin->w_botline = cln + 1; | |
| 1933 #ifdef FEAT_DIFF | |
| 1934 loff.fill = 0; | |
| 1935 #endif | |
| 1936 for (curwin->w_topline = curwin->w_botline; | |
| 1937 curwin->w_topline > 1; | |
| 1938 curwin->w_topline = loff.lnum) | |
| 1939 { | |
| 1940 loff.lnum = curwin->w_topline; | |
| 1941 topline_back(&loff); | |
|
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parents:
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changeset
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1942 if (loff.height == MAXCOL || used + loff.height > curwin->w_height) |
| 7 | 1943 break; |
| 1944 used += loff.height; | |
| 1945 #ifdef FEAT_DIFF | |
| 1946 curwin->w_topfill = loff.fill; | |
| 1947 #endif | |
| 1948 } | |
| 1949 set_empty_rows(curwin, used); | |
| 1950 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
| 1951 if (curwin->w_topline != old_topline | |
| 1952 #ifdef FEAT_DIFF | |
| 1953 || curwin->w_topfill != old_topfill | |
| 1954 #endif | |
| 1955 ) | |
| 1956 curwin->w_valid &= ~(VALID_WROW|VALID_CROW); | |
| 1957 } | |
| 1958 else | |
| 1959 validate_botline(); | |
| 1960 | |
| 1961 /* The lines of the cursor line itself are always used. */ | |
| 1962 #ifdef FEAT_DIFF | |
| 1963 used = plines_nofill(cln); | |
| 1964 #else | |
| 1965 validate_cheight(); | |
| 1966 used = curwin->w_cline_height; | |
| 1967 #endif | |
| 1968 | |
| 1969 /* If the cursor is below botline, we will at least scroll by the height | |
| 1970 * of the cursor line. Correct for empty lines, which are really part of | |
| 1971 * botline. */ | |
| 1972 if (cln >= curwin->w_botline) | |
| 1973 { | |
| 1974 scrolled = used; | |
| 1975 if (cln == curwin->w_botline) | |
| 1976 scrolled -= curwin->w_empty_rows; | |
| 1977 } | |
| 1978 | |
| 1979 /* | |
| 1980 * Stop counting lines to scroll when | |
| 1981 * - hitting start of the file | |
| 1982 * - scrolled nothing or at least 'sj' lines | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1983 * - at least 'scrolloff' lines below the cursor |
| 7 | 1984 * - lines between botline and cursor have been counted |
| 1985 */ | |
| 1986 #ifdef FEAT_FOLDING | |
| 1987 if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum)) | |
| 1988 #endif | |
| 1989 { | |
| 1990 loff.lnum = cln; | |
| 1991 boff.lnum = cln; | |
| 1992 } | |
| 1993 #ifdef FEAT_DIFF | |
| 1994 loff.fill = 0; | |
| 1995 boff.fill = 0; | |
| 1996 fill_below_window = diff_check_fill(curwin, curwin->w_botline) | |
| 1997 - curwin->w_filler_rows; | |
| 1998 #endif | |
| 1999 | |
| 2000 while (loff.lnum > 1) | |
| 2001 { | |
| 2002 /* Stop when scrolled nothing or at least "min_scroll", found "extra" | |
| 2003 * context for 'scrolloff' and counted all lines below the window. */ | |
| 2004 if ((((scrolled <= 0 || scrolled >= min_scroll) | |
| 2005 && extra >= ( | |
| 2006 #ifdef FEAT_MOUSE | |
| 1121 | 2007 mouse_dragging > 0 ? mouse_dragging - 1 : |
| 7 | 2008 #endif |
|
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parents:
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diff
changeset
|
2009 so)) |
| 7 | 2010 || boff.lnum + 1 > curbuf->b_ml.ml_line_count) |
| 2011 && loff.lnum <= curwin->w_botline | |
| 2012 #ifdef FEAT_DIFF | |
| 2013 && (loff.lnum < curwin->w_botline | |
| 2014 || loff.fill >= fill_below_window) | |
| 2015 #endif | |
| 2016 ) | |
| 2017 break; | |
| 2018 | |
| 2019 /* Add one line above */ | |
| 2020 topline_back(&loff); | |
|
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2021 if (loff.height == MAXCOL) |
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2022 used = MAXCOL; |
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2023 else |
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parents:
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changeset
|
2024 used += loff.height; |
| 7 | 2025 if (used > curwin->w_height) |
| 2026 break; | |
| 2027 if (loff.lnum >= curwin->w_botline | |
| 2028 #ifdef FEAT_DIFF | |
| 2029 && (loff.lnum > curwin->w_botline | |
| 2030 || loff.fill <= fill_below_window) | |
| 2031 #endif | |
| 2032 ) | |
| 2033 { | |
| 2034 /* Count screen lines that are below the window. */ | |
| 2035 scrolled += loff.height; | |
| 2036 if (loff.lnum == curwin->w_botline | |
| 2037 #ifdef FEAT_DIFF | |
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changeset
|
2038 && loff.fill == 0 |
| 7 | 2039 #endif |
| 2040 ) | |
| 2041 scrolled -= curwin->w_empty_rows; | |
| 2042 } | |
| 2043 | |
| 2044 if (boff.lnum < curbuf->b_ml.ml_line_count) | |
| 2045 { | |
| 2046 /* Add one line below */ | |
| 2047 botline_forw(&boff); | |
| 2048 used += boff.height; | |
| 2049 if (used > curwin->w_height) | |
| 2050 break; | |
| 2051 if (extra < ( | |
| 2052 #ifdef FEAT_MOUSE | |
| 2053 mouse_dragging > 0 ? mouse_dragging - 1 : | |
| 2054 #endif | |
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parents:
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diff
changeset
|
2055 so) || scrolled < min_scroll) |
| 7 | 2056 { |
| 2057 extra += boff.height; | |
| 2058 if (boff.lnum >= curwin->w_botline | |
| 2059 #ifdef FEAT_DIFF | |
| 2060 || (boff.lnum + 1 == curwin->w_botline | |
| 2061 && boff.fill > curwin->w_filler_rows) | |
| 2062 #endif | |
| 2063 ) | |
| 2064 { | |
| 2065 /* Count screen lines that are below the window. */ | |
| 2066 scrolled += boff.height; | |
| 2067 if (boff.lnum == curwin->w_botline | |
| 2068 #ifdef FEAT_DIFF | |
| 2069 && boff.fill == 0 | |
| 2070 #endif | |
| 2071 ) | |
| 2072 scrolled -= curwin->w_empty_rows; | |
| 2073 } | |
| 2074 } | |
| 2075 } | |
| 2076 } | |
| 2077 | |
| 2078 /* curwin->w_empty_rows is larger, no need to scroll */ | |
| 2079 if (scrolled <= 0) | |
| 2080 line_count = 0; | |
| 2081 /* more than a screenfull, don't scroll but redraw */ | |
| 2082 else if (used > curwin->w_height) | |
| 2083 line_count = used; | |
| 2084 /* scroll minimal number of lines */ | |
| 2085 else | |
| 2086 { | |
| 2087 line_count = 0; | |
| 2088 #ifdef FEAT_DIFF | |
| 2089 boff.fill = curwin->w_topfill; | |
| 2090 #endif | |
| 2091 boff.lnum = curwin->w_topline - 1; | |
| 2092 for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; ) | |
| 2093 { | |
| 2094 botline_forw(&boff); | |
| 2095 i += boff.height; | |
| 2096 ++line_count; | |
| 2097 } | |
| 2098 if (i < scrolled) /* below curwin->w_botline, don't scroll */ | |
| 2099 line_count = 9999; | |
| 2100 } | |
| 2101 | |
| 2102 /* | |
| 2103 * Scroll up if the cursor is off the bottom of the screen a bit. | |
| 2104 * Otherwise put it at 1/2 of the screen. | |
| 2105 */ | |
| 2106 if (line_count >= curwin->w_height && line_count > min_scroll) | |
| 2107 scroll_cursor_halfway(FALSE); | |
| 2108 else | |
| 2109 scrollup(line_count, TRUE); | |
| 2110 | |
| 2111 /* | |
| 2112 * If topline didn't change we need to restore w_botline and w_empty_rows | |
| 2113 * (we changed them). | |
| 2114 * If topline did change, update_screen() will set botline. | |
| 2115 */ | |
| 2116 if (curwin->w_topline == old_topline && set_topbot) | |
| 2117 { | |
| 2118 curwin->w_botline = old_botline; | |
| 2119 curwin->w_empty_rows = old_empty_rows; | |
| 2120 curwin->w_valid = old_valid; | |
| 2121 } | |
| 2122 curwin->w_valid |= VALID_TOPLINE; | |
| 2123 } | |
| 2124 | |
| 2125 /* | |
| 2126 * Recompute topline to put the cursor halfway the window | |
| 2127 * If "atend" is TRUE, also put it halfway at the end of the file. | |
| 2128 */ | |
| 2129 void | |
|
7829
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2130 scroll_cursor_halfway(int atend) |
| 7 | 2131 { |
| 2132 int above = 0; | |
| 2133 linenr_T topline; | |
| 2134 #ifdef FEAT_DIFF | |
| 2135 int topfill = 0; | |
| 2136 #endif | |
| 2137 int below = 0; | |
| 2138 int used; | |
| 2139 lineoff_T loff; | |
| 2140 lineoff_T boff; | |
| 5661 | 2141 #ifdef FEAT_DIFF |
| 5653 | 2142 linenr_T old_topline = curwin->w_topline; |
| 5661 | 2143 #endif |
| 7 | 2144 |
| 2145 loff.lnum = boff.lnum = curwin->w_cursor.lnum; | |
| 2146 #ifdef FEAT_FOLDING | |
| 2147 (void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum); | |
| 2148 #endif | |
| 2149 #ifdef FEAT_DIFF | |
| 2150 used = plines_nofill(loff.lnum); | |
| 2151 loff.fill = 0; | |
| 2152 boff.fill = 0; | |
| 2153 #else | |
| 2154 used = plines(loff.lnum); | |
| 2155 #endif | |
| 2156 topline = loff.lnum; | |
| 2157 while (topline > 1) | |
| 2158 { | |
| 2159 if (below <= above) /* add a line below the cursor first */ | |
| 2160 { | |
| 2161 if (boff.lnum < curbuf->b_ml.ml_line_count) | |
| 2162 { | |
| 2163 botline_forw(&boff); | |
| 2164 used += boff.height; | |
| 2165 if (used > curwin->w_height) | |
| 2166 break; | |
| 2167 below += boff.height; | |
| 2168 } | |
| 2169 else | |
| 2170 { | |
| 2171 ++below; /* count a "~" line */ | |
| 2172 if (atend) | |
| 2173 ++used; | |
| 2174 } | |
| 2175 } | |
| 2176 | |
| 2177 if (below > above) /* add a line above the cursor */ | |
| 2178 { | |
| 2179 topline_back(&loff); | |
|
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diff
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|
2180 if (loff.height == MAXCOL) |
|
8ca3c9ad0bee
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diff
changeset
|
2181 used = MAXCOL; |
|
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parents:
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diff
changeset
|
2182 else |
|
8ca3c9ad0bee
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parents:
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diff
changeset
|
2183 used += loff.height; |
| 7 | 2184 if (used > curwin->w_height) |
| 2185 break; | |
| 2186 above += loff.height; | |
| 2187 topline = loff.lnum; | |
| 2188 #ifdef FEAT_DIFF | |
| 2189 topfill = loff.fill; | |
| 2190 #endif | |
| 2191 } | |
| 2192 } | |
| 2193 #ifdef FEAT_FOLDING | |
| 2194 if (!hasFolding(topline, &curwin->w_topline, NULL)) | |
| 2195 #endif | |
| 2196 curwin->w_topline = topline; | |
| 2197 #ifdef FEAT_DIFF | |
| 2198 curwin->w_topfill = topfill; | |
| 5653 | 2199 if (old_topline > curwin->w_topline + curwin->w_height) |
| 2200 curwin->w_botfill = FALSE; | |
| 7 | 2201 check_topfill(curwin, FALSE); |
| 2202 #endif | |
| 2203 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 2204 curwin->w_valid |= VALID_TOPLINE; | |
| 2205 } | |
| 2206 | |
| 2207 /* | |
| 2208 * Correct the cursor position so that it is in a part of the screen at least | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15697
diff
changeset
|
2209 * 'scrolloff' lines from the top and bottom, if possible. |
| 7 | 2210 * If not possible, put it at the same position as scroll_cursor_halfway(). |
| 2211 * When called topline must be valid! | |
| 2212 */ | |
| 2213 void | |
|
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2214 cursor_correct(void) |
| 7 | 2215 { |
| 2216 int above = 0; /* screen lines above topline */ | |
| 2217 linenr_T topline; | |
| 2218 int below = 0; /* screen lines below botline */ | |
| 2219 linenr_T botline; | |
| 2220 int above_wanted, below_wanted; | |
| 2221 linenr_T cln; /* Cursor Line Number */ | |
| 2222 int max_off; | |
|
15713
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
Bram Moolenaar <Bram@vim.org>
parents:
15697
diff
changeset
|
2223 long so = get_scrolloff_value(); |
| 7 | 2224 |
| 2225 /* | |
| 2226 * How many lines we would like to have above/below the cursor depends on | |
| 2227 * whether the first/last line of the file is on screen. | |
| 2228 */ | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15697
diff
changeset
|
2229 above_wanted = so; |
|
ad8b2c109b22
patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
Bram Moolenaar <Bram@vim.org>
parents:
15697
diff
changeset
|
2230 below_wanted = so; |
| 7 | 2231 #ifdef FEAT_MOUSE |
| 1121 | 2232 if (mouse_dragging > 0) |
| 7 | 2233 { |
| 2234 above_wanted = mouse_dragging - 1; | |
| 2235 below_wanted = mouse_dragging - 1; | |
| 2236 } | |
| 2237 #endif | |
| 2238 if (curwin->w_topline == 1) | |
| 2239 { | |
| 2240 above_wanted = 0; | |
| 2241 max_off = curwin->w_height / 2; | |
| 2242 if (below_wanted > max_off) | |
| 2243 below_wanted = max_off; | |
| 2244 } | |
| 2245 validate_botline(); | |
| 2246 if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1 | |
| 2247 #ifdef FEAT_MOUSE | |
| 1121 | 2248 && mouse_dragging == 0 |
| 7 | 2249 #endif |
| 2250 ) | |
| 2251 { | |
| 2252 below_wanted = 0; | |
| 2253 max_off = (curwin->w_height - 1) / 2; | |
| 2254 if (above_wanted > max_off) | |
| 2255 above_wanted = max_off; | |
| 2256 } | |
| 2257 | |
| 2258 /* | |
| 2259 * If there are sufficient file-lines above and below the cursor, we can | |
| 2260 * return now. | |
| 2261 */ | |
| 2262 cln = curwin->w_cursor.lnum; | |
| 2263 if (cln >= curwin->w_topline + above_wanted | |
| 2264 && cln < curwin->w_botline - below_wanted | |
| 2265 #ifdef FEAT_FOLDING | |
| 2266 && !hasAnyFolding(curwin) | |
| 2267 #endif | |
| 2268 ) | |
| 2269 return; | |
| 2270 | |
| 2271 /* | |
| 2272 * Narrow down the area where the cursor can be put by taking lines from | |
| 2273 * the top and the bottom until: | |
| 2274 * - the desired context lines are found | |
| 2275 * - the lines from the top is past the lines from the bottom | |
| 2276 */ | |
| 2277 topline = curwin->w_topline; | |
| 2278 botline = curwin->w_botline - 1; | |
| 2279 #ifdef FEAT_DIFF | |
| 2280 /* count filler lines as context */ | |
| 2281 above = curwin->w_topfill; | |
| 2282 below = curwin->w_filler_rows; | |
| 2283 #endif | |
| 2284 while ((above < above_wanted || below < below_wanted) && topline < botline) | |
| 2285 { | |
| 2286 if (below < below_wanted && (below <= above || above >= above_wanted)) | |
| 2287 { | |
| 2288 #ifdef FEAT_FOLDING | |
| 2289 if (hasFolding(botline, &botline, NULL)) | |
| 2290 ++below; | |
| 2291 else | |
| 2292 #endif | |
| 2293 below += plines(botline); | |
| 2294 --botline; | |
| 2295 } | |
| 2296 if (above < above_wanted && (above < below || below >= below_wanted)) | |
| 2297 { | |
| 2298 #ifdef FEAT_FOLDING | |
| 2299 if (hasFolding(topline, NULL, &topline)) | |
| 2300 ++above; | |
| 2301 else | |
| 2302 #endif | |
|
7103
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commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2303 above += PLINES_NOFILL(topline); |
|
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2304 #ifdef FEAT_DIFF |
| 7 | 2305 /* Count filler lines below this line as context. */ |
| 2306 if (topline < botline) | |
| 2307 above += diff_check_fill(curwin, topline + 1); | |
| 2308 #endif | |
| 2309 ++topline; | |
| 2310 } | |
| 2311 } | |
| 2312 if (topline == botline || botline == 0) | |
| 2313 curwin->w_cursor.lnum = topline; | |
| 2314 else if (topline > botline) | |
| 2315 curwin->w_cursor.lnum = botline; | |
| 2316 else | |
| 2317 { | |
| 2318 if (cln < topline && curwin->w_topline > 1) | |
| 2319 { | |
| 2320 curwin->w_cursor.lnum = topline; | |
| 2321 curwin->w_valid &= | |
| 2322 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW); | |
| 2323 } | |
| 2324 if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
| 2325 { | |
| 2326 curwin->w_cursor.lnum = botline; | |
| 2327 curwin->w_valid &= | |
| 2328 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW); | |
| 2329 } | |
| 2330 } | |
| 2331 curwin->w_valid |= VALID_TOPLINE; | |
| 2332 } | |
| 2333 | |
|
7803
37c929c4a073
commit https://github.com/vim/vim/commit/92b8b2d307e34117f146319872010b0ccc9d2713
Christian Brabandt <cb@256bit.org>
parents:
7103
diff
changeset
|
2334 static void get_scroll_overlap(lineoff_T *lp, int dir); |
| 7 | 2335 |
| 2336 /* | |
| 2337 * move screen 'count' pages up or down and update screen | |
| 2338 * | |
| 2339 * return FAIL for failure, OK otherwise | |
| 2340 */ | |
| 2341 int | |
|
7829
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2342 onepage(int dir, long count) |
| 7 | 2343 { |
| 2344 long n; | |
| 2345 int retval = OK; | |
| 2346 lineoff_T loff; | |
| 2347 linenr_T old_topline = curwin->w_topline; | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
15697
diff
changeset
|
2348 long so = get_scrolloff_value(); |
| 7 | 2349 |
| 2350 if (curbuf->b_ml.ml_line_count == 1) /* nothing to do */ | |
| 2351 { | |
| 2352 beep_flush(); | |
| 2353 return FAIL; | |
| 2354 } | |
| 2355 | |
| 2356 for ( ; count > 0; --count) | |
| 2357 { | |
| 2358 validate_botline(); | |
| 2359 /* | |
| 2360 * It's an error to move a page up when the first line is already on | |
| 2361 * the screen. It's an error to move a page down when the last line | |
| 2362 * is on the screen and the topline is 'scrolloff' lines from the | |
| 2363 * last line. | |
| 2364 */ | |
| 2365 if (dir == FORWARD | |
|
15713
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parents:
15697
diff
changeset
|
2366 ? ((curwin->w_topline >= curbuf->b_ml.ml_line_count - so) |
| 7 | 2367 && curwin->w_botline > curbuf->b_ml.ml_line_count) |
| 2368 : (curwin->w_topline == 1 | |
| 2369 #ifdef FEAT_DIFF | |
| 2370 && curwin->w_topfill == | |
| 2371 diff_check_fill(curwin, curwin->w_topline) | |
| 2372 #endif | |
| 2373 )) | |
| 2374 { | |
| 2375 beep_flush(); | |
| 2376 retval = FAIL; | |
| 2377 break; | |
| 2378 } | |
| 2379 | |
| 2380 #ifdef FEAT_DIFF | |
| 2381 loff.fill = 0; | |
| 2382 #endif | |
| 2383 if (dir == FORWARD) | |
| 2384 { | |
|
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commit https://github.com/vim/vim/commit/a1f4cb93ba50ea9e40cd4b1f5592b8a6d1398660
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
2385 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1) |
| 7 | 2386 { |
| 164 | 2387 /* Vi compatible scrolling */ |
| 2388 if (p_window <= 2) | |
| 2389 ++curwin->w_topline; | |
| 2390 else | |
| 2391 curwin->w_topline += p_window - 2; | |
| 2392 if (curwin->w_topline > curbuf->b_ml.ml_line_count) | |
| 2393 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
| 2394 curwin->w_cursor.lnum = curwin->w_topline; | |
| 2395 } | |
| 2396 else if (curwin->w_botline > curbuf->b_ml.ml_line_count) | |
| 2397 { | |
| 2398 /* at end of file */ | |
| 7 | 2399 curwin->w_topline = curbuf->b_ml.ml_line_count; |
| 2400 #ifdef FEAT_DIFF | |
| 2401 curwin->w_topfill = 0; | |
| 2402 #endif | |
| 2403 curwin->w_valid &= ~(VALID_WROW|VALID_CROW); | |
| 2404 } | |
| 2405 else | |
| 2406 { | |
| 2407 /* For the overlap, start with the line just below the window | |
| 2408 * and go upwards. */ | |
| 2409 loff.lnum = curwin->w_botline; | |
| 2410 #ifdef FEAT_DIFF | |
| 2411 loff.fill = diff_check_fill(curwin, loff.lnum) | |
| 2412 - curwin->w_filler_rows; | |
| 2413 #endif | |
| 2414 get_scroll_overlap(&loff, -1); | |
| 2415 curwin->w_topline = loff.lnum; | |
| 2416 #ifdef FEAT_DIFF | |
| 2417 curwin->w_topfill = loff.fill; | |
| 2418 check_topfill(curwin, FALSE); | |
| 2419 #endif | |
| 2420 curwin->w_cursor.lnum = curwin->w_topline; | |
| 2421 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW| | |
| 2422 VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 2423 } | |
| 2424 } | |
| 2425 else /* dir == BACKWARDS */ | |
| 2426 { | |
| 2427 #ifdef FEAT_DIFF | |
| 2428 if (curwin->w_topline == 1) | |
| 2429 { | |
| 2430 /* Include max number of filler lines */ | |
| 2431 max_topfill(); | |
| 2432 continue; | |
| 2433 } | |
| 2434 #endif | |
|
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commit https://github.com/vim/vim/commit/a1f4cb93ba50ea9e40cd4b1f5592b8a6d1398660
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
2435 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1) |
| 164 | 2436 { |
| 2437 /* Vi compatible scrolling (sort of) */ | |
| 2438 if (p_window <= 2) | |
| 2439 --curwin->w_topline; | |
| 2440 else | |
| 2441 curwin->w_topline -= p_window - 2; | |
| 2442 if (curwin->w_topline < 1) | |
| 2443 curwin->w_topline = 1; | |
| 2444 curwin->w_cursor.lnum = curwin->w_topline + p_window - 1; | |
| 2445 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) | |
| 2446 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
| 2447 continue; | |
| 2448 } | |
| 2449 | |
| 7 | 2450 /* Find the line at the top of the window that is going to be the |
| 2451 * line at the bottom of the window. Make sure this results in | |
| 2452 * the same line as before doing CTRL-F. */ | |
| 2453 loff.lnum = curwin->w_topline - 1; | |
| 2454 #ifdef FEAT_DIFF | |
| 2455 loff.fill = diff_check_fill(curwin, loff.lnum + 1) | |
| 2456 - curwin->w_topfill; | |
| 2457 #endif | |
| 2458 get_scroll_overlap(&loff, 1); | |
| 2459 | |
| 2460 if (loff.lnum >= curbuf->b_ml.ml_line_count) | |
| 2461 { | |
| 2462 loff.lnum = curbuf->b_ml.ml_line_count; | |
| 2463 #ifdef FEAT_DIFF | |
| 2464 loff.fill = 0; | |
| 2465 } | |
| 2466 else | |
| 2467 { | |
| 2468 botline_topline(&loff); | |
| 2469 #endif | |
| 2470 } | |
| 2471 curwin->w_cursor.lnum = loff.lnum; | |
| 2472 | |
| 2473 /* Find the line just above the new topline to get the right line | |
| 2474 * at the bottom of the window. */ | |
| 2475 n = 0; | |
| 2476 while (n <= curwin->w_height && loff.lnum >= 1) | |
| 2477 { | |
| 2478 topline_back(&loff); | |
|
2082
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parents:
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diff
changeset
|
2479 if (loff.height == MAXCOL) |
|
8ca3c9ad0bee
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parents:
2070
diff
changeset
|
2480 n = MAXCOL; |
|
8ca3c9ad0bee
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Bram Moolenaar <bram@zimbu.org>
parents:
2070
diff
changeset
|
2481 else |
|
8ca3c9ad0bee
updated for version 7.2.366
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parents:
2070
diff
changeset
|
2482 n += loff.height; |
| 7 | 2483 } |
|
2082
8ca3c9ad0bee
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parents:
2070
diff
changeset
|
2484 if (loff.lnum < 1) /* at begin of file */ |
| 7 | 2485 { |
| 2486 curwin->w_topline = 1; | |
| 2487 #ifdef FEAT_DIFF | |
| 2488 max_topfill(); | |
| 2489 #endif | |
| 2490 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
| 2491 } | |
| 2492 else | |
| 2493 { | |
| 2494 /* Go two lines forward again. */ | |
| 2495 #ifdef FEAT_DIFF | |
| 2496 topline_botline(&loff); | |
| 2497 #endif | |
| 2498 botline_forw(&loff); | |
| 2499 botline_forw(&loff); | |
| 2500 #ifdef FEAT_DIFF | |
| 2501 botline_topline(&loff); | |
| 2502 #endif | |
| 2503 #ifdef FEAT_FOLDING | |
| 2504 /* We're at the wrong end of a fold now. */ | |
| 2505 (void)hasFolding(loff.lnum, &loff.lnum, NULL); | |
| 2506 #endif | |
| 2507 | |
| 2508 /* Always scroll at least one line. Avoid getting stuck on | |
| 2509 * very long lines. */ | |
| 2510 if (loff.lnum >= curwin->w_topline | |
| 2511 #ifdef FEAT_DIFF | |
| 2512 && (loff.lnum > curwin->w_topline | |
| 2513 || loff.fill >= curwin->w_topfill) | |
| 2514 #endif | |
| 2515 ) | |
| 2516 { | |
| 2517 #ifdef FEAT_DIFF | |
| 2518 /* First try using the maximum number of filler lines. If | |
| 2519 * that's not enough, backup one line. */ | |
| 2520 loff.fill = curwin->w_topfill; | |
| 2521 if (curwin->w_topfill < diff_check_fill(curwin, | |
| 2522 curwin->w_topline)) | |
| 2523 max_topfill(); | |
| 2524 if (curwin->w_topfill == loff.fill) | |
| 2525 #endif | |
| 2526 { | |
| 2527 --curwin->w_topline; | |
| 2528 #ifdef FEAT_DIFF | |
| 2529 curwin->w_topfill = 0; | |
| 2530 #endif | |
| 2531 } | |
| 2532 comp_botline(curwin); | |
| 2533 curwin->w_cursor.lnum = curwin->w_botline - 1; | |
| 5764 | 2534 curwin->w_valid &= |
| 2535 ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW|VALID_CROW); | |
| 7 | 2536 } |
| 2537 else | |
| 2538 { | |
| 2539 curwin->w_topline = loff.lnum; | |
| 2540 #ifdef FEAT_DIFF | |
| 2541 curwin->w_topfill = loff.fill; | |
| 2542 check_topfill(curwin, FALSE); | |
| 2543 #endif | |
| 2544 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
| 2545 } | |
| 2546 } | |
| 2547 } | |
| 2548 } | |
| 2549 #ifdef FEAT_FOLDING | |
| 2550 foldAdjustCursor(); | |
| 2551 #endif | |
| 2552 cursor_correct(); | |
|
10102
b80ad55d62d8
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Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2553 check_cursor_col(); |
| 161 | 2554 if (retval == OK) |
| 2555 beginline(BL_SOL | BL_FIX); | |
| 7 | 2556 curwin->w_valid &= ~(VALID_WCOL|VALID_WROW|VALID_VIRTCOL); |
| 2557 | |
|
14317
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2558 if (retval == OK && dir == FORWARD) |
| 7 | 2559 { |
|
14317
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2560 // Avoid the screen jumping up and down when 'scrolloff' is non-zero. |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2561 // But make sure we scroll at least one line (happens with mix of long |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2562 // wrapping lines and non-wrapping line). |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2563 if (check_top_offset()) |
|
1bc96dbb5498
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parents:
13384
diff
changeset
|
2564 { |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2565 scroll_cursor_top(1, FALSE); |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2566 if (curwin->w_topline <= old_topline |
| 7 | 2567 && old_topline < curbuf->b_ml.ml_line_count) |
|
14317
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Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2568 { |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2569 curwin->w_topline = old_topline + 1; |
| 7 | 2570 #ifdef FEAT_FOLDING |
|
14317
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patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2571 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
|
1bc96dbb5498
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parents:
13384
diff
changeset
|
2572 #endif |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
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diff
changeset
|
2573 } |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2574 } |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
2575 #ifdef FEAT_FOLDING |
|
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
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parents:
13384
diff
changeset
|
2576 else if (curwin->w_botline > curbuf->b_ml.ml_line_count) |
| 7 | 2577 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
| 2578 #endif | |
| 2579 } | |
| 2580 | |
| 2581 redraw_later(VALID); | |
| 2582 return retval; | |
| 2583 } | |
| 2584 | |
| 2585 /* | |
| 2586 * Decide how much overlap to use for page-up or page-down scrolling. | |
| 2587 * This is symmetric, so that doing both keeps the same lines displayed. | |
| 2588 * Three lines are examined: | |
| 2589 * | |
| 2590 * before CTRL-F after CTRL-F / before CTRL-B | |
| 2591 * etc. l1 | |
| 2592 * l1 last but one line ------------ | |
| 2593 * l2 last text line l2 top text line | |
| 2594 * ------------- l3 second text line | |
| 2595 * l3 etc. | |
| 2596 */ | |
| 2597 static void | |
|
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2598 get_scroll_overlap(lineoff_T *lp, int dir) |
| 7 | 2599 { |
| 2600 int h1, h2, h3, h4; | |
| 2601 int min_height = curwin->w_height - 2; | |
| 2602 lineoff_T loff0, loff1, loff2; | |
| 2603 | |
| 2604 #ifdef FEAT_DIFF | |
| 2605 if (lp->fill > 0) | |
| 2606 lp->height = 1; | |
| 2607 else | |
| 2608 lp->height = plines_nofill(lp->lnum); | |
| 2609 #else | |
| 2610 lp->height = plines(lp->lnum); | |
| 2611 #endif | |
| 2612 h1 = lp->height; | |
| 2613 if (h1 > min_height) | |
| 2614 return; /* no overlap */ | |
| 2615 | |
| 2616 loff0 = *lp; | |
| 2617 if (dir > 0) | |
| 2618 botline_forw(lp); | |
| 2619 else | |
| 2620 topline_back(lp); | |
| 2621 h2 = lp->height; | |
| 3968 | 2622 if (h2 == MAXCOL || h2 + h1 > min_height) |
| 7 | 2623 { |
| 2624 *lp = loff0; /* no overlap */ | |
| 2625 return; | |
| 2626 } | |
| 2627 | |
| 2628 loff1 = *lp; | |
| 2629 if (dir > 0) | |
| 2630 botline_forw(lp); | |
| 2631 else | |
| 2632 topline_back(lp); | |
| 2633 h3 = lp->height; | |
| 3968 | 2634 if (h3 == MAXCOL || h3 + h2 > min_height) |
| 7 | 2635 { |
| 2636 *lp = loff0; /* no overlap */ | |
| 2637 return; | |
| 2638 } | |
| 2639 | |
| 2640 loff2 = *lp; | |
| 2641 if (dir > 0) | |
| 2642 botline_forw(lp); | |
| 2643 else | |
| 2644 topline_back(lp); | |
| 2645 h4 = lp->height; | |
| 3968 | 2646 if (h4 == MAXCOL || h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height) |
| 7 | 2647 *lp = loff1; /* 1 line overlap */ |
| 2648 else | |
| 2649 *lp = loff2; /* 2 lines overlap */ | |
| 2650 return; | |
| 2651 } | |
| 2652 | |
| 2653 /* | |
| 2654 * Scroll 'scroll' lines up or down. | |
| 2655 */ | |
| 2656 void | |
|
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2657 halfpage(int flag, linenr_T Prenum) |
| 7 | 2658 { |
| 2659 long scrolled = 0; | |
| 2660 int i; | |
| 2661 int n; | |
| 2662 int room; | |
| 2663 | |
| 2664 if (Prenum) | |
| 2665 curwin->w_p_scr = (Prenum > curwin->w_height) ? | |
| 2666 curwin->w_height : Prenum; | |
| 2667 n = (curwin->w_p_scr <= curwin->w_height) ? | |
| 2668 curwin->w_p_scr : curwin->w_height; | |
| 2669 | |
|
11258
84f71a8a5f2c
patch 8.0.0515: ml_get errors in silent Ex mode
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
2670 update_topline(); |
| 7 | 2671 validate_botline(); |
| 2672 room = curwin->w_empty_rows; | |
| 2673 #ifdef FEAT_DIFF | |
| 2674 room += curwin->w_filler_rows; | |
| 2675 #endif | |
| 2676 if (flag) | |
| 2677 { | |
| 2678 /* | |
| 2679 * scroll the text up | |
| 2680 */ | |
| 2681 while (n > 0 && curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
| 2682 { | |
| 2683 #ifdef FEAT_DIFF | |
| 2684 if (curwin->w_topfill > 0) | |
| 2685 { | |
| 2686 i = 1; | |
| 2687 if (--n < 0 && scrolled > 0) | |
| 2688 break; | |
| 2689 --curwin->w_topfill; | |
| 2690 } | |
| 2691 else | |
| 2692 #endif | |
| 2693 { | |
|
7103
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2694 i = PLINES_NOFILL(curwin->w_topline); |
| 7 | 2695 n -= i; |
| 2696 if (n < 0 && scrolled > 0) | |
| 2697 break; | |
| 2698 #ifdef FEAT_FOLDING | |
| 2699 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline); | |
| 2700 #endif | |
| 2701 ++curwin->w_topline; | |
| 2702 #ifdef FEAT_DIFF | |
| 2703 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
| 2704 #endif | |
| 2705 | |
| 2706 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) | |
| 2707 { | |
| 2708 ++curwin->w_cursor.lnum; | |
| 2709 curwin->w_valid &= | |
| 2710 ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL); | |
| 2711 } | |
| 2712 } | |
| 2713 curwin->w_valid &= ~(VALID_CROW|VALID_WROW); | |
| 2714 scrolled += i; | |
| 2715 | |
| 2716 /* | |
| 2717 * Correct w_botline for changed w_topline. | |
| 2718 * Won't work when there are filler lines. | |
| 2719 */ | |
| 2720 #ifdef FEAT_DIFF | |
| 2721 if (curwin->w_p_diff) | |
| 2722 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 2723 else | |
| 2724 #endif | |
| 2725 { | |
| 2726 room += i; | |
| 2727 do | |
| 2728 { | |
| 2729 i = plines(curwin->w_botline); | |
| 2730 if (i > room) | |
| 2731 break; | |
| 2732 #ifdef FEAT_FOLDING | |
| 2733 (void)hasFolding(curwin->w_botline, NULL, | |
| 2734 &curwin->w_botline); | |
| 2735 #endif | |
| 2736 ++curwin->w_botline; | |
| 2737 room -= i; | |
| 2738 } while (curwin->w_botline <= curbuf->b_ml.ml_line_count); | |
| 2739 } | |
| 2740 } | |
| 2741 | |
| 2742 /* | |
| 2743 * When hit bottom of the file: move cursor down. | |
| 2744 */ | |
| 2745 if (n > 0) | |
| 2746 { | |
| 2747 # ifdef FEAT_FOLDING | |
| 2748 if (hasAnyFolding(curwin)) | |
| 2749 { | |
| 2750 while (--n >= 0 | |
| 2751 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) | |
| 2752 { | |
| 2753 (void)hasFolding(curwin->w_cursor.lnum, NULL, | |
| 2754 &curwin->w_cursor.lnum); | |
| 2755 ++curwin->w_cursor.lnum; | |
| 2756 } | |
| 2757 } | |
| 2758 else | |
| 2759 # endif | |
| 2760 curwin->w_cursor.lnum += n; | |
| 2761 check_cursor_lnum(); | |
| 2762 } | |
| 2763 } | |
| 2764 else | |
| 2765 { | |
| 2766 /* | |
| 2767 * scroll the text down | |
| 2768 */ | |
| 2769 while (n > 0 && curwin->w_topline > 1) | |
| 2770 { | |
| 2771 #ifdef FEAT_DIFF | |
| 2772 if (curwin->w_topfill < diff_check_fill(curwin, curwin->w_topline)) | |
| 2773 { | |
| 2774 i = 1; | |
|
16042
7952be788a49
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Bram Moolenaar <Bram@vim.org>
parents:
15713
diff
changeset
|
2775 --n; |
| 7 | 2776 ++curwin->w_topfill; |
| 2777 } | |
| 2778 else | |
| 2779 #endif | |
| 2780 { | |
|
7103
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2781 i = PLINES_NOFILL(curwin->w_topline - 1); |
| 7 | 2782 n -= i; |
| 2783 if (n < 0 && scrolled > 0) | |
| 2784 break; | |
| 2785 --curwin->w_topline; | |
| 2786 #ifdef FEAT_FOLDING | |
| 2787 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); | |
| 2788 #endif | |
| 2789 #ifdef FEAT_DIFF | |
| 2790 curwin->w_topfill = 0; | |
| 2791 #endif | |
| 2792 } | |
| 2793 curwin->w_valid &= ~(VALID_CROW|VALID_WROW| | |
| 2794 VALID_BOTLINE|VALID_BOTLINE_AP); | |
| 2795 scrolled += i; | |
| 2796 if (curwin->w_cursor.lnum > 1) | |
| 2797 { | |
| 2798 --curwin->w_cursor.lnum; | |
| 2799 curwin->w_valid &= ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL); | |
| 2800 } | |
| 2801 } | |
|
16042
7952be788a49
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Bram Moolenaar <Bram@vim.org>
parents:
15713
diff
changeset
|
2802 |
| 7 | 2803 /* |
| 2804 * When hit top of the file: move cursor up. | |
| 2805 */ | |
| 2806 if (n > 0) | |
| 2807 { | |
| 2808 if (curwin->w_cursor.lnum <= (linenr_T)n) | |
| 2809 curwin->w_cursor.lnum = 1; | |
| 2810 else | |
| 2811 # ifdef FEAT_FOLDING | |
| 2812 if (hasAnyFolding(curwin)) | |
| 2813 { | |
| 2814 while (--n >= 0 && curwin->w_cursor.lnum > 1) | |
| 2815 { | |
| 2816 --curwin->w_cursor.lnum; | |
| 2817 (void)hasFolding(curwin->w_cursor.lnum, | |
| 2818 &curwin->w_cursor.lnum, NULL); | |
| 2819 } | |
| 2820 } | |
| 2821 else | |
| 2822 # endif | |
| 2823 curwin->w_cursor.lnum -= n; | |
| 2824 } | |
| 2825 } | |
| 2826 # ifdef FEAT_FOLDING | |
| 2827 /* Move cursor to first line of closed fold. */ | |
| 2828 foldAdjustCursor(); | |
| 2829 # endif | |
| 2830 #ifdef FEAT_DIFF | |
| 2831 check_topfill(curwin, !flag); | |
| 2832 #endif | |
| 2833 cursor_correct(); | |
| 2834 beginline(BL_SOL | BL_FIX); | |
| 2835 redraw_later(VALID); | |
| 2836 } | |
|
2250
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parents:
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diff
changeset
|
2837 |
|
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Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2838 void |
|
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2839 do_check_cursorbind(void) |
|
2250
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parents:
2210
diff
changeset
|
2840 { |
|
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parents:
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diff
changeset
|
2841 linenr_T line = curwin->w_cursor.lnum; |
| 3415 | 2842 colnr_T col = curwin->w_cursor.col; |
| 2843 colnr_T coladd = curwin->w_cursor.coladd; | |
| 3433 | 2844 colnr_T curswant = curwin->w_curswant; |
| 2845 int set_curswant = curwin->w_set_curswant; | |
|
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parents:
2210
diff
changeset
|
2846 win_T *old_curwin = curwin; |
|
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parents:
2210
diff
changeset
|
2847 buf_T *old_curbuf = curbuf; |
| 2693 | 2848 int restart_edit_save; |
|
2250
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diff
changeset
|
2849 int old_VIsual_select = VIsual_select; |
|
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parents:
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diff
changeset
|
2850 int old_VIsual_active = VIsual_active; |
|
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diff
changeset
|
2851 |
|
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parents:
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diff
changeset
|
2852 /* |
|
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diff
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|
2853 * loop through the cursorbound windows |
|
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parents:
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diff
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|
2854 */ |
|
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parents:
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diff
changeset
|
2855 VIsual_select = VIsual_active = 0; |
|
9649
fd9727ae3c49
commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
Christian Brabandt <cb@256bit.org>
parents:
8643
diff
changeset
|
2856 FOR_ALL_WINDOWS(curwin) |
|
2250
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parents:
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diff
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|
2857 { |
|
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diff
changeset
|
2858 curbuf = curwin->w_buffer; |
|
1bac28a53fae
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parents:
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diff
changeset
|
2859 /* skip original window and windows with 'noscrollbind' */ |
|
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parents:
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diff
changeset
|
2860 if (curwin != old_curwin && curwin->w_p_crb) |
|
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parents:
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diff
changeset
|
2861 { |
|
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parents:
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changeset
|
2862 # ifdef FEAT_DIFF |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
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changeset
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2863 if (curwin->w_p_diff) |
|
10295
d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10102
diff
changeset
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2864 curwin->w_cursor.lnum = |
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d0b74b18e4b5
commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
Christian Brabandt <cb@256bit.org>
parents:
10102
diff
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2865 diff_get_corresponding_line(old_curbuf, line); |
|
2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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2866 else |
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1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2867 # endif |
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1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2868 curwin->w_cursor.lnum = line; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2869 curwin->w_cursor.col = col; |
| 3415 | 2870 curwin->w_cursor.coladd = coladd; |
| 3433 | 2871 curwin->w_curswant = curswant; |
| 2872 curwin->w_set_curswant = set_curswant; | |
|
2250
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Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2873 |
| 2693 | 2874 /* Make sure the cursor is in a valid position. Temporarily set |
| 2875 * "restart_edit" to allow the cursor to be beyond the EOL. */ | |
| 2876 restart_edit_save = restart_edit; | |
| 2877 restart_edit = TRUE; | |
|
2250
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Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2878 check_cursor(); |
|
10607
e39300d3d2cf
patch 8.0.0193: accidentally removed #ifdef
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10597
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2879 # ifdef FEAT_SYN_HL |
|
10597
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patch 8.0.0188: redrawing for 'cursorbind' is inefficient
Christian Brabandt <cb@256bit.org>
parents:
10585
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2880 if (curwin->w_p_cul || curwin->w_p_cuc) |
|
10583
f91c0376f2c6
patch 8.0.0181: with cursorbind set cursor column highlighting is off
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parents:
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2881 validate_cursor(); |
|
10607
e39300d3d2cf
patch 8.0.0193: accidentally removed #ifdef
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parents:
10597
diff
changeset
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2882 # endif |
| 2693 | 2883 restart_edit = restart_edit_save; |
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2250
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2884 /* Correct cursor for multi-byte character. */ |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2885 if (has_mbyte) |
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1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2886 mb_adjust_cursor(); |
|
10597
472bff31a20a
patch 8.0.0188: redrawing for 'cursorbind' is inefficient
Christian Brabandt <cb@256bit.org>
parents:
10585
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2887 redraw_later(VALID); |
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2250
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Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2888 |
| 2688 | 2889 /* Only scroll when 'scrollbind' hasn't done this. */ |
| 2890 if (!curwin->w_p_scb) | |
| 2891 update_topline(); | |
|
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parents:
2210
diff
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2892 curwin->w_redr_status = TRUE; |
|
1bac28a53fae
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Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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2893 } |
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1bac28a53fae
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Bram Moolenaar <bram@vim.org>
parents:
2210
diff
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2894 } |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2895 |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2896 /* |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2897 * reset current-window |
|
1bac28a53fae
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Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2898 */ |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2899 VIsual_select = old_VIsual_select; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2900 VIsual_active = old_VIsual_active; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2901 curwin = old_curwin; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
|
2902 curbuf = old_curbuf; |
|
1bac28a53fae
Add the conceal patch from Vince Negri.
Bram Moolenaar <bram@vim.org>
parents:
2210
diff
changeset
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2903 } |