Mercurial > vim
annotate src/move.c @ 28222:85540173d3ca v8.2.4637
patch 8.2.4637: warning for using uninitialized variable
Commit: https://github.com/vim/vim/commit/565d1278cbbb7bc927bee207d5c2bc0bb95928fa
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Mar 27 18:11:05 2022 +0100
patch 8.2.4637: warning for using uninitialized variable
Problem: Warning for using uninitialized variable. (Tony Mechelynck)
Solution: Initialize it.
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Sun, 27 Mar 2022 19:15:03 +0200 |
parents | f04a3ec65e2d |
children | c99005ffa8c3 |
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 { | |
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28 linenr_T lnum; // line number |
7 | 29 #ifdef FEAT_DIFF |
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30 int fill; // filler lines |
7 | 31 #endif |
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32 int height; // height of added line |
7 | 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 | |
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111 // wp->w_botline is the line that is just below the window |
7 | 112 wp->w_botline = lnum; |
113 wp->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
114 | |
115 set_empty_rows(wp, done); | |
116 } | |
117 | |
118 /* | |
5764 | 119 * Redraw when w_cline_row changes and 'relativenumber' or 'cursorline' is |
120 * set. | |
121 */ | |
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122 void |
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123 redraw_for_cursorline(win_T *wp) |
5764 | 124 { |
125 if ((wp->w_p_rnu | |
126 #ifdef FEAT_SYN_HL | |
127 || wp->w_p_cul | |
128 #endif | |
129 ) | |
130 && (wp->w_valid & VALID_CROW) == 0 | |
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131 && !pum_visible()) |
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132 { |
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133 // win_line() will redraw the number column and cursorline only. |
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134 redraw_win_later(wp, VALID); |
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135 } |
5764 | 136 } |
137 | |
138 /* | |
7 | 139 * Update curwin->w_topline and redraw if necessary. |
140 * Used to update the screen before printing a message. | |
141 */ | |
142 void | |
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143 update_topline_redraw(void) |
7 | 144 { |
145 update_topline(); | |
146 if (must_redraw) | |
147 update_screen(0); | |
148 } | |
149 | |
150 /* | |
151 * Update curwin->w_topline to move the cursor onto the screen. | |
152 */ | |
153 void | |
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154 update_topline(void) |
7 | 155 { |
156 long line_count; | |
157 int halfheight; | |
158 int n; | |
159 linenr_T old_topline; | |
160 #ifdef FEAT_DIFF | |
161 int old_topfill; | |
162 #endif | |
163 #ifdef FEAT_FOLDING | |
164 linenr_T lnum; | |
165 #endif | |
166 int check_topline = FALSE; | |
167 int check_botline = FALSE; | |
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168 long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so; |
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169 int save_so = *so_ptr; |
7 | 170 |
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171 // If there is no valid screen and when the window height is zero just use |
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172 // the cursor line. |
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173 if (!screen_valid(TRUE) || curwin->w_height == 0) |
6247 | 174 { |
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175 check_cursor_lnum(); |
6247 | 176 curwin->w_topline = curwin->w_cursor.lnum; |
177 curwin->w_botline = curwin->w_topline; | |
178 curwin->w_scbind_pos = 1; | |
179 return; | |
180 } | |
181 | |
7 | 182 check_cursor_moved(curwin); |
183 if (curwin->w_valid & VALID_TOPLINE) | |
184 return; | |
185 | |
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186 // When dragging with the mouse, don't scroll that quickly |
1121 | 187 if (mouse_dragging > 0) |
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188 *so_ptr = mouse_dragging - 1; |
7 | 189 |
190 old_topline = curwin->w_topline; | |
191 #ifdef FEAT_DIFF | |
192 old_topfill = curwin->w_topfill; | |
193 #endif | |
194 | |
195 /* | |
196 * If the buffer is empty, always set topline to 1. | |
197 */ | |
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198 if (BUFEMPTY()) // special case - file is empty |
7 | 199 { |
200 if (curwin->w_topline != 1) | |
201 redraw_later(NOT_VALID); | |
202 curwin->w_topline = 1; | |
203 curwin->w_botline = 2; | |
204 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
205 curwin->w_scbind_pos = 1; | |
206 } | |
207 | |
208 /* | |
209 * If the cursor is above or near the top of the window, scroll the window | |
210 * to show the line the cursor is in, with 'scrolloff' context. | |
211 */ | |
212 else | |
213 { | |
214 if (curwin->w_topline > 1) | |
215 { | |
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216 // If the cursor is above topline, scrolling is always needed. |
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217 // If the cursor is far below topline and there is no folding, |
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218 // scrolling down is never needed. |
7 | 219 if (curwin->w_cursor.lnum < curwin->w_topline) |
220 check_topline = TRUE; | |
221 else if (check_top_offset()) | |
222 check_topline = TRUE; | |
223 } | |
224 #ifdef FEAT_DIFF | |
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225 // Check if there are more filler lines than allowed. |
7 | 226 if (!check_topline && curwin->w_topfill > diff_check_fill(curwin, |
227 curwin->w_topline)) | |
228 check_topline = TRUE; | |
229 #endif | |
230 | |
231 if (check_topline) | |
232 { | |
233 halfheight = curwin->w_height / 2 - 1; | |
234 if (halfheight < 2) | |
235 halfheight = 2; | |
236 | |
237 #ifdef FEAT_FOLDING | |
238 if (hasAnyFolding(curwin)) | |
239 { | |
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240 // Count the number of logical lines between the cursor and |
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241 // topline + scrolloff (approximation of how much will be |
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242 // scrolled). |
7 | 243 n = 0; |
244 for (lnum = curwin->w_cursor.lnum; | |
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245 lnum < curwin->w_topline + *so_ptr; ++lnum) |
7 | 246 { |
247 ++n; | |
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248 // stop at end of file or when we know we are far off |
7 | 249 if (lnum >= curbuf->b_ml.ml_line_count || n >= halfheight) |
250 break; | |
251 (void)hasFolding(lnum, NULL, &lnum); | |
252 } | |
253 } | |
254 else | |
255 #endif | |
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256 n = curwin->w_topline + *so_ptr - curwin->w_cursor.lnum; |
7 | 257 |
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258 // If we weren't very close to begin with, we scroll to put the |
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259 // cursor in the middle of the window. Otherwise put the cursor |
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260 // near the top of the window. |
7 | 261 if (n >= halfheight) |
262 scroll_cursor_halfway(FALSE); | |
263 else | |
264 { | |
532 | 265 scroll_cursor_top(scrolljump_value(), FALSE); |
7 | 266 check_botline = TRUE; |
267 } | |
268 } | |
269 | |
270 else | |
271 { | |
272 #ifdef FEAT_FOLDING | |
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273 // Make sure topline is the first line of a fold. |
7 | 274 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
275 #endif | |
276 check_botline = TRUE; | |
277 } | |
278 } | |
279 | |
280 /* | |
281 * If the cursor is below the bottom of the window, scroll the window | |
282 * to put the cursor on the window. | |
283 * When w_botline is invalid, recompute it first, to avoid a redraw later. | |
284 * If w_botline was approximated, we might need a redraw later in a few | |
285 * cases, but we don't want to spend (a lot of) time recomputing w_botline | |
286 * for every small change. | |
287 */ | |
288 if (check_botline) | |
289 { | |
290 if (!(curwin->w_valid & VALID_BOTLINE_AP)) | |
291 validate_botline(); | |
292 | |
293 if (curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
294 { | |
1744 | 295 if (curwin->w_cursor.lnum < curwin->w_botline) |
296 { | |
297 if (((long)curwin->w_cursor.lnum | |
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298 >= (long)curwin->w_botline - *so_ptr |
7 | 299 #ifdef FEAT_FOLDING |
300 || hasAnyFolding(curwin) | |
301 #endif | |
302 )) | |
1744 | 303 { |
7 | 304 lineoff_T loff; |
305 | |
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306 // Cursor is (a few lines) above botline, check if there are |
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307 // 'scrolloff' window lines below the cursor. If not, need to |
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308 // scroll. |
7 | 309 n = curwin->w_empty_rows; |
310 loff.lnum = curwin->w_cursor.lnum; | |
311 #ifdef FEAT_FOLDING | |
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312 // In a fold go to its last line. |
7 | 313 (void)hasFolding(loff.lnum, NULL, &loff.lnum); |
314 #endif | |
315 #ifdef FEAT_DIFF | |
316 loff.fill = 0; | |
317 n += curwin->w_filler_rows; | |
318 #endif | |
319 loff.height = 0; | |
320 while (loff.lnum < curwin->w_botline | |
321 #ifdef FEAT_DIFF | |
322 && (loff.lnum + 1 < curwin->w_botline || loff.fill == 0) | |
323 #endif | |
324 ) | |
325 { | |
326 n += loff.height; | |
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327 if (n >= *so_ptr) |
7 | 328 break; |
329 botline_forw(&loff); | |
330 } | |
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331 if (n >= *so_ptr) |
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332 // sufficient context, no need to scroll |
7 | 333 check_botline = FALSE; |
1744 | 334 } |
335 else | |
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336 // sufficient context, no need to scroll |
1744 | 337 check_botline = FALSE; |
7 | 338 } |
339 if (check_botline) | |
340 { | |
341 #ifdef FEAT_FOLDING | |
342 if (hasAnyFolding(curwin)) | |
343 { | |
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344 // Count the number of logical lines between the cursor and |
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345 // botline - scrolloff (approximation of how much will be |
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346 // scrolled). |
7 | 347 line_count = 0; |
348 for (lnum = curwin->w_cursor.lnum; | |
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349 lnum >= curwin->w_botline - *so_ptr; --lnum) |
7 | 350 { |
351 ++line_count; | |
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352 // stop at end of file or when we know we are far off |
7 | 353 if (lnum <= 0 || line_count > curwin->w_height + 1) |
354 break; | |
355 (void)hasFolding(lnum, &lnum, NULL); | |
356 } | |
357 } | |
358 else | |
359 #endif | |
360 line_count = curwin->w_cursor.lnum - curwin->w_botline | |
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361 + 1 + *so_ptr; |
7 | 362 if (line_count <= curwin->w_height + 1) |
532 | 363 scroll_cursor_bot(scrolljump_value(), FALSE); |
7 | 364 else |
365 scroll_cursor_halfway(FALSE); | |
366 } | |
367 } | |
368 } | |
369 curwin->w_valid |= VALID_TOPLINE; | |
370 | |
371 /* | |
372 * Need to redraw when topline changed. | |
373 */ | |
374 if (curwin->w_topline != old_topline | |
375 #ifdef FEAT_DIFF | |
376 || curwin->w_topfill != old_topfill | |
377 #endif | |
378 ) | |
379 { | |
3318 | 380 dollar_vcol = -1; |
740 | 381 if (curwin->w_skipcol != 0) |
7 | 382 { |
383 curwin->w_skipcol = 0; | |
384 redraw_later(NOT_VALID); | |
385 } | |
386 else | |
387 redraw_later(VALID); | |
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388 // May need to set w_skipcol when cursor in w_topline. |
7 | 389 if (curwin->w_cursor.lnum == curwin->w_topline) |
390 validate_cursor(); | |
391 } | |
392 | |
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393 *so_ptr = save_so; |
7 | 394 } |
395 | |
396 /* | |
532 | 397 * Return the scrolljump value to use for the current window. |
398 * When 'scrolljump' is positive use it as-is. | |
399 * When 'scrolljump' is negative use it as a percentage of the window height. | |
400 */ | |
401 static int | |
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402 scrolljump_value(void) |
532 | 403 { |
404 if (p_sj >= 0) | |
405 return (int)p_sj; | |
406 return (curwin->w_height * -p_sj) / 100; | |
407 } | |
408 | |
409 /* | |
7 | 410 * Return TRUE when there are not 'scrolloff' lines above the cursor for the |
411 * current window. | |
412 */ | |
413 static int | |
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414 check_top_offset(void) |
7 | 415 { |
416 lineoff_T loff; | |
417 int n; | |
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418 long so = get_scrolloff_value(); |
7 | 419 |
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420 if (curwin->w_cursor.lnum < curwin->w_topline + so |
7 | 421 #ifdef FEAT_FOLDING |
422 || hasAnyFolding(curwin) | |
423 #endif | |
424 ) | |
425 { | |
426 loff.lnum = curwin->w_cursor.lnum; | |
427 #ifdef FEAT_DIFF | |
428 loff.fill = 0; | |
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429 n = curwin->w_topfill; // always have this context |
7 | 430 #else |
431 n = 0; | |
432 #endif | |
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433 // Count the visible screen lines above the cursor line. |
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434 while (n < so) |
7 | 435 { |
436 topline_back(&loff); | |
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437 // Stop when included a line above the window. |
7 | 438 if (loff.lnum < curwin->w_topline |
439 #ifdef FEAT_DIFF | |
440 || (loff.lnum == curwin->w_topline && loff.fill > 0) | |
441 #endif | |
442 ) | |
443 break; | |
444 n += loff.height; | |
445 } | |
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446 if (n < so) |
7 | 447 return TRUE; |
448 } | |
449 return FALSE; | |
450 } | |
451 | |
452 void | |
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453 update_curswant(void) |
7 | 454 { |
455 if (curwin->w_set_curswant) | |
456 { | |
457 validate_virtcol(); | |
458 curwin->w_curswant = curwin->w_virtcol; | |
459 curwin->w_set_curswant = FALSE; | |
460 } | |
461 } | |
462 | |
463 /* | |
464 * Check if the cursor has moved. Set the w_valid flag accordingly. | |
465 */ | |
466 void | |
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467 check_cursor_moved(win_T *wp) |
7 | 468 { |
469 if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum) | |
470 { | |
471 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
472 |VALID_CHEIGHT|VALID_CROW|VALID_TOPLINE); | |
473 wp->w_valid_cursor = wp->w_cursor; | |
474 wp->w_valid_leftcol = wp->w_leftcol; | |
475 } | |
476 else if (wp->w_cursor.col != wp->w_valid_cursor.col | |
477 || wp->w_leftcol != wp->w_valid_leftcol | |
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478 || wp->w_cursor.coladd != wp->w_valid_cursor.coladd) |
7 | 479 { |
480 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL); | |
481 wp->w_valid_cursor.col = wp->w_cursor.col; | |
482 wp->w_valid_leftcol = wp->w_leftcol; | |
483 wp->w_valid_cursor.coladd = wp->w_cursor.coladd; | |
484 } | |
485 } | |
486 | |
487 /* | |
488 * Call this function when some window settings have changed, which require | |
489 * the cursor position, botline and topline to be recomputed and the window to | |
490 * be redrawn. E.g, when changing the 'wrap' option or folding. | |
491 */ | |
492 void | |
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493 changed_window_setting(void) |
7 | 494 { |
495 changed_window_setting_win(curwin); | |
496 } | |
497 | |
498 void | |
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499 changed_window_setting_win(win_T *wp) |
7 | 500 { |
501 wp->w_lines_valid = 0; | |
502 changed_line_abv_curs_win(wp); | |
503 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP|VALID_TOPLINE); | |
504 redraw_win_later(wp, NOT_VALID); | |
505 } | |
506 | |
507 /* | |
508 * Set wp->w_topline to a certain number. | |
509 */ | |
510 void | |
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511 set_topline(win_T *wp, linenr_T lnum) |
7 | 512 { |
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513 #ifdef FEAT_DIFF |
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514 linenr_T prev_topline = wp->w_topline; |
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515 #endif |
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516 |
7 | 517 #ifdef FEAT_FOLDING |
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518 // go to first of folded lines |
7 | 519 (void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); |
520 #endif | |
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521 // Approximate the value of w_botline |
7 | 522 wp->w_botline += lnum - wp->w_topline; |
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523 if (wp->w_botline > wp->w_buffer->b_ml.ml_line_count + 1) |
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524 wp->w_botline = wp->w_buffer->b_ml.ml_line_count + 1; |
7 | 525 wp->w_topline = lnum; |
1744 | 526 wp->w_topline_was_set = TRUE; |
7 | 527 #ifdef FEAT_DIFF |
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528 if (lnum != prev_topline) |
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529 // Keep the filler lines when the topline didn't change. |
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530 wp->w_topfill = 0; |
7 | 531 #endif |
532 wp->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_TOPLINE); | |
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533 // Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked. |
7 | 534 redraw_later(VALID); |
535 } | |
536 | |
537 /* | |
538 * Call this function when the length of the cursor line (in screen | |
539 * characters) has changed, and the change is before the cursor. | |
540 * Need to take care of w_botline separately! | |
541 */ | |
542 void | |
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543 changed_cline_bef_curs(void) |
7 | 544 { |
545 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
546 |VALID_CHEIGHT|VALID_TOPLINE); | |
547 } | |
548 | |
549 void | |
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550 changed_cline_bef_curs_win(win_T *wp) |
7 | 551 { |
552 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL | |
553 |VALID_CHEIGHT|VALID_TOPLINE); | |
554 } | |
555 | |
556 /* | |
557 * Call this function when the length of a line (in screen characters) above | |
558 * the cursor have changed. | |
559 * Need to take care of w_botline separately! | |
560 */ | |
561 void | |
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562 changed_line_abv_curs(void) |
7 | 563 { |
564 curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW | |
565 |VALID_CHEIGHT|VALID_TOPLINE); | |
566 } | |
567 | |
568 void | |
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569 changed_line_abv_curs_win(win_T *wp) |
7 | 570 { |
571 wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW | |
572 |VALID_CHEIGHT|VALID_TOPLINE); | |
573 } | |
574 | |
575 /* | |
576 * Make sure the value of curwin->w_botline is valid. | |
577 */ | |
578 void | |
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579 validate_botline(void) |
7 | 580 { |
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581 validate_botline_win(curwin); |
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582 } |
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583 |
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584 /* |
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585 * Make sure the value of wp->w_botline is valid. |
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586 */ |
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587 void |
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588 validate_botline_win(win_T *wp) |
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589 { |
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590 if (!(wp->w_valid & VALID_BOTLINE)) |
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591 comp_botline(wp); |
7 | 592 } |
593 | |
594 /* | |
595 * Mark curwin->w_botline as invalid (because of some change in the buffer). | |
596 */ | |
597 void | |
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598 invalidate_botline(void) |
7 | 599 { |
600 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
601 } | |
602 | |
603 void | |
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604 invalidate_botline_win(win_T *wp) |
7 | 605 { |
606 wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
607 } | |
608 | |
609 void | |
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610 approximate_botline_win( |
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611 win_T *wp) |
7 | 612 { |
613 wp->w_valid &= ~VALID_BOTLINE; | |
614 } | |
615 | |
616 /* | |
617 * Return TRUE if curwin->w_wrow and curwin->w_wcol are valid. | |
618 */ | |
619 int | |
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620 cursor_valid(void) |
7 | 621 { |
622 check_cursor_moved(curwin); | |
623 return ((curwin->w_valid & (VALID_WROW|VALID_WCOL)) == | |
624 (VALID_WROW|VALID_WCOL)); | |
625 } | |
626 | |
627 /* | |
628 * Validate cursor position. Makes sure w_wrow and w_wcol are valid. | |
629 * w_topline must be valid, you may need to call update_topline() first! | |
630 */ | |
631 void | |
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632 validate_cursor(void) |
7 | 633 { |
634 check_cursor_moved(curwin); | |
635 if ((curwin->w_valid & (VALID_WCOL|VALID_WROW)) != (VALID_WCOL|VALID_WROW)) | |
636 curs_columns(TRUE); | |
637 } | |
638 | |
639 #if defined(FEAT_GUI) || defined(PROTO) | |
640 /* | |
641 * validate w_cline_row. | |
642 */ | |
643 void | |
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644 validate_cline_row(void) |
7 | 645 { |
646 /* | |
647 * First make sure that w_topline is valid (after moving the cursor). | |
648 */ | |
649 update_topline(); | |
650 check_cursor_moved(curwin); | |
651 if (!(curwin->w_valid & VALID_CROW)) | |
6441 | 652 curs_rows(curwin); |
7 | 653 } |
654 #endif | |
655 | |
656 /* | |
657 * Compute wp->w_cline_row and wp->w_cline_height, based on the current value | |
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658 * of wp->w_topline. |
7 | 659 */ |
660 static void | |
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661 curs_rows(win_T *wp) |
7 | 662 { |
663 linenr_T lnum; | |
664 int i; | |
665 int all_invalid; | |
666 int valid; | |
667 #ifdef FEAT_FOLDING | |
668 long fold_count; | |
669 #endif | |
670 | |
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671 // Check if wp->w_lines[].wl_size is invalid |
7 | 672 all_invalid = (!redrawing() |
673 || wp->w_lines_valid == 0 | |
674 || wp->w_lines[0].wl_lnum > wp->w_topline); | |
675 i = 0; | |
676 wp->w_cline_row = 0; | |
677 for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i) | |
678 { | |
679 valid = FALSE; | |
680 if (!all_invalid && i < wp->w_lines_valid) | |
681 { | |
682 if (wp->w_lines[i].wl_lnum < lnum || !wp->w_lines[i].wl_valid) | |
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683 continue; // skip changed or deleted lines |
7 | 684 if (wp->w_lines[i].wl_lnum == lnum) |
685 { | |
686 #ifdef FEAT_FOLDING | |
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687 // Check for newly inserted lines below this row, in which |
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688 // case we need to check for folded lines. |
7 | 689 if (!wp->w_buffer->b_mod_set |
690 || wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum | |
691 || wp->w_buffer->b_mod_top | |
692 > wp->w_lines[i].wl_lastlnum + 1) | |
693 #endif | |
694 valid = TRUE; | |
695 } | |
696 else if (wp->w_lines[i].wl_lnum > lnum) | |
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697 --i; // hold at inserted lines |
7 | 698 } |
699 if (valid | |
700 #ifdef FEAT_DIFF | |
701 && (lnum != wp->w_topline || !wp->w_p_diff) | |
702 #endif | |
703 ) | |
704 { | |
705 #ifdef FEAT_FOLDING | |
706 lnum = wp->w_lines[i].wl_lastlnum + 1; | |
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707 // Cursor inside folded lines, don't count this row |
7 | 708 if (lnum > wp->w_cursor.lnum) |
709 break; | |
710 #else | |
711 ++lnum; | |
712 #endif | |
713 wp->w_cline_row += wp->w_lines[i].wl_size; | |
714 } | |
715 else | |
716 { | |
717 #ifdef FEAT_FOLDING | |
718 fold_count = foldedCount(wp, lnum, NULL); | |
719 if (fold_count) | |
720 { | |
721 lnum += fold_count; | |
722 if (lnum > wp->w_cursor.lnum) | |
723 break; | |
724 ++wp->w_cline_row; | |
725 } | |
726 else | |
727 #endif | |
728 #ifdef FEAT_DIFF | |
729 if (lnum == wp->w_topline) | |
730 wp->w_cline_row += plines_win_nofill(wp, lnum++, TRUE) | |
731 + wp->w_topfill; | |
732 else | |
733 #endif | |
734 wp->w_cline_row += plines_win(wp, lnum++, TRUE); | |
735 } | |
736 } | |
737 | |
738 check_cursor_moved(wp); | |
739 if (!(wp->w_valid & VALID_CHEIGHT)) | |
740 { | |
741 if (all_invalid | |
742 || i == wp->w_lines_valid | |
743 || (i < wp->w_lines_valid | |
744 && (!wp->w_lines[i].wl_valid | |
745 || wp->w_lines[i].wl_lnum != wp->w_cursor.lnum))) | |
746 { | |
747 #ifdef FEAT_DIFF | |
748 if (wp->w_cursor.lnum == wp->w_topline) | |
749 wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum, | |
750 TRUE) + wp->w_topfill; | |
751 else | |
752 #endif | |
753 wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE); | |
754 #ifdef FEAT_FOLDING | |
755 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum, | |
756 NULL, NULL, TRUE, NULL); | |
757 #endif | |
758 } | |
759 else if (i > wp->w_lines_valid) | |
760 { | |
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761 // a line that is too long to fit on the last screen line |
7 | 762 wp->w_cline_height = 0; |
763 #ifdef FEAT_FOLDING | |
764 wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum, | |
765 NULL, NULL, TRUE, NULL); | |
766 #endif | |
767 } | |
768 else | |
769 { | |
770 wp->w_cline_height = wp->w_lines[i].wl_size; | |
771 #ifdef FEAT_FOLDING | |
772 wp->w_cline_folded = wp->w_lines[i].wl_folded; | |
773 #endif | |
774 } | |
775 } | |
776 | |
5764 | 777 redraw_for_cursorline(curwin); |
7 | 778 wp->w_valid |= VALID_CROW|VALID_CHEIGHT; |
779 | |
780 } | |
781 | |
782 /* | |
783 * Validate curwin->w_virtcol only. | |
784 */ | |
785 void | |
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786 validate_virtcol(void) |
7 | 787 { |
788 validate_virtcol_win(curwin); | |
789 } | |
790 | |
791 /* | |
792 * Validate wp->w_virtcol only. | |
793 */ | |
794 void | |
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795 validate_virtcol_win(win_T *wp) |
7 | 796 { |
797 check_cursor_moved(wp); | |
798 if (!(wp->w_valid & VALID_VIRTCOL)) | |
799 { | |
800 getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL); | |
801 wp->w_valid |= VALID_VIRTCOL; | |
740 | 802 #ifdef FEAT_SYN_HL |
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803 if (wp->w_p_cuc && !pum_visible()) |
740 | 804 redraw_win_later(wp, SOME_VALID); |
805 #endif | |
7 | 806 } |
807 } | |
808 | |
809 /* | |
810 * Validate curwin->w_cline_height only. | |
811 */ | |
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812 void |
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813 validate_cheight(void) |
7 | 814 { |
815 check_cursor_moved(curwin); | |
816 if (!(curwin->w_valid & VALID_CHEIGHT)) | |
817 { | |
818 #ifdef FEAT_DIFF | |
819 if (curwin->w_cursor.lnum == curwin->w_topline) | |
820 curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum) | |
821 + curwin->w_topfill; | |
822 else | |
823 #endif | |
824 curwin->w_cline_height = plines(curwin->w_cursor.lnum); | |
825 #ifdef FEAT_FOLDING | |
826 curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL); | |
827 #endif | |
828 curwin->w_valid |= VALID_CHEIGHT; | |
829 } | |
830 } | |
831 | |
832 /* | |
1668 | 833 * Validate w_wcol and w_virtcol only. |
7 | 834 */ |
835 void | |
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836 validate_cursor_col(void) |
7 | 837 { |
838 colnr_T off; | |
839 colnr_T col; | |
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840 int width; |
7 | 841 |
842 validate_virtcol(); | |
843 if (!(curwin->w_valid & VALID_WCOL)) | |
844 { | |
845 col = curwin->w_virtcol; | |
846 off = curwin_col_off(); | |
847 col += off; | |
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848 width = curwin->w_width - off + curwin_col_off2(); |
7 | 849 |
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850 // long line wrapping, adjust curwin->w_wrow |
1668 | 851 if (curwin->w_p_wrap |
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852 && col >= (colnr_T)curwin->w_width |
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853 && width > 0) |
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854 // use same formula as what is used in curs_columns() |
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855 col -= ((col - curwin->w_width) / width + 1) * width; |
1668 | 856 if (col > (int)curwin->w_leftcol) |
857 col -= curwin->w_leftcol; | |
858 else | |
859 col = 0; | |
7 | 860 curwin->w_wcol = col; |
1668 | 861 |
7 | 862 curwin->w_valid |= VALID_WCOL; |
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863 #ifdef FEAT_PROP_POPUP |
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864 curwin->w_flags &= ~WFLAG_WCOL_OFF_ADDED; |
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865 #endif |
7 | 866 } |
867 } | |
868 | |
869 /* | |
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870 * Compute offset of a window, occupied by absolute or relative line number, |
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871 * fold column and sign column (these don't move when scrolling horizontally). |
7 | 872 */ |
873 int | |
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874 win_col_off(win_T *wp) |
7 | 875 { |
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876 return (((wp->w_p_nu || wp->w_p_rnu) ? number_width(wp) + 1 : 0) |
7 | 877 #ifdef FEAT_CMDWIN |
878 + (cmdwin_type == 0 || wp != curwin ? 0 : 1) | |
879 #endif | |
880 #ifdef FEAT_FOLDING | |
881 + wp->w_p_fdc | |
882 #endif | |
883 #ifdef FEAT_SIGNS | |
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884 + (signcolumn_on(wp) ? 2 : 0) |
7 | 885 #endif |
886 ); | |
887 } | |
888 | |
889 int | |
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890 curwin_col_off(void) |
7 | 891 { |
892 return win_col_off(curwin); | |
893 } | |
894 | |
895 /* | |
896 * Return the difference in column offset for the second screen line of a | |
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897 * wrapped line. It's 8 if 'number' or 'relativenumber' is on and 'n' is in |
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898 * 'cpoptions'. |
7 | 899 */ |
900 int | |
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901 win_col_off2(win_T *wp) |
7 | 902 { |
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903 if ((wp->w_p_nu || wp->w_p_rnu) && vim_strchr(p_cpo, CPO_NUMCOL) != NULL) |
13 | 904 return number_width(wp) + 1; |
7 | 905 return 0; |
906 } | |
907 | |
908 int | |
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909 curwin_col_off2(void) |
7 | 910 { |
911 return win_col_off2(curwin); | |
912 } | |
913 | |
914 /* | |
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915 * Compute curwin->w_wcol and curwin->w_virtcol. |
7 | 916 * Also updates curwin->w_wrow and curwin->w_cline_row. |
917 * Also updates curwin->w_leftcol. | |
918 */ | |
919 void | |
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920 curs_columns( |
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921 int may_scroll) // when TRUE, may scroll horizontally |
7 | 922 { |
923 int diff; | |
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924 int extra; // offset for first screen line |
7 | 925 int off_left, off_right; |
926 int n; | |
927 int p_lines; | |
928 int width = 0; | |
929 int textwidth; | |
930 int new_leftcol; | |
931 colnr_T startcol; | |
932 colnr_T endcol; | |
933 colnr_T prev_skipcol; | |
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934 long so = get_scrolloff_value(); |
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935 long siso = get_sidescrolloff_value(); |
7 | 936 |
937 /* | |
938 * First make sure that w_topline is valid (after moving the cursor). | |
939 */ | |
940 update_topline(); | |
941 | |
942 /* | |
943 * Next make sure that w_cline_row is valid. | |
944 */ | |
945 if (!(curwin->w_valid & VALID_CROW)) | |
6441 | 946 curs_rows(curwin); |
7 | 947 |
948 /* | |
949 * Compute the number of virtual columns. | |
950 */ | |
951 #ifdef FEAT_FOLDING | |
952 if (curwin->w_cline_folded) | |
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953 // In a folded line the cursor is always in the first column |
7 | 954 startcol = curwin->w_virtcol = endcol = curwin->w_leftcol; |
955 else | |
956 #endif | |
957 getvvcol(curwin, &curwin->w_cursor, | |
958 &startcol, &(curwin->w_virtcol), &endcol); | |
959 | |
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960 // remove '$' from change command when cursor moves onto it |
7 | 961 if (startcol > dollar_vcol) |
3318 | 962 dollar_vcol = -1; |
7 | 963 |
964 extra = curwin_col_off(); | |
965 curwin->w_wcol = curwin->w_virtcol + extra; | |
966 endcol += extra; | |
967 | |
968 /* | |
969 * Now compute w_wrow, counting screen lines from w_cline_row. | |
970 */ | |
971 curwin->w_wrow = curwin->w_cline_row; | |
972 | |
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973 textwidth = curwin->w_width - extra; |
7 | 974 if (textwidth <= 0) |
975 { | |
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976 // No room for text, put cursor in last char of window. |
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977 // If not wrapping, the last non-empty line. |
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978 curwin->w_wcol = curwin->w_width - 1; |
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979 if (curwin->w_p_wrap) |
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980 curwin->w_wrow = curwin->w_height - 1; |
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981 else |
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982 curwin->w_wrow = curwin->w_height - 1 - curwin->w_empty_rows; |
7 | 983 } |
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984 else if (curwin->w_p_wrap && curwin->w_width != 0) |
7 | 985 { |
986 width = textwidth + curwin_col_off2(); | |
987 | |
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988 // long line wrapping, adjust curwin->w_wrow |
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989 if (curwin->w_wcol >= curwin->w_width) |
7 | 990 { |
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991 #ifdef FEAT_LINEBREAK |
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992 char_u *sbr; |
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993 #endif |
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|
994 |
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|
995 // this same formula is used in validate_cursor_col() |
12515
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patch 8.0.1136: W_WIDTH() is always the same
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
996 n = (curwin->w_wcol - curwin->w_width) / width + 1; |
7 | 997 curwin->w_wcol -= n * width; |
998 curwin->w_wrow += n; | |
999 | |
1000 #ifdef FEAT_LINEBREAK | |
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changeset
|
1001 // When cursor wraps to first char of next line in Insert |
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parents:
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|
1002 // mode, the 'showbreak' string isn't shown, backup to first |
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patch 8.2.0026: still some /* */ comments
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parents:
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changeset
|
1003 // column |
18574
8b0114ffde2b
patch 8.1.2281: 'showbreak' cannot be set for one window
Bram Moolenaar <Bram@vim.org>
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changeset
|
1004 sbr = get_showbreak_value(curwin); |
8b0114ffde2b
patch 8.1.2281: 'showbreak' cannot be set for one window
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1005 if (*sbr && *ml_get_cursor() == NUL |
25852
336e2d9924e6
patch 8.2.3460: some type casts are not needed
Bram Moolenaar <Bram@vim.org>
parents:
25717
diff
changeset
|
1006 && curwin->w_wcol == vim_strsize(sbr)) |
7 | 1007 curwin->w_wcol = 0; |
1008 #endif | |
1009 } | |
1010 } | |
1011 | |
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|
1012 // No line wrapping: compute curwin->w_leftcol if scrolling is on and line |
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
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parents:
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|
1013 // is not folded. |
80b40bd5ec1a
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parents:
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diff
changeset
|
1014 // If scrolling is off, curwin->w_leftcol is assumed to be 0 |
3263 | 1015 else if (may_scroll |
7 | 1016 #ifdef FEAT_FOLDING |
1017 && !curwin->w_cline_folded | |
1018 #endif | |
1019 ) | |
1020 { | |
1021 /* | |
1022 * If Cursor is left of the screen, scroll rightwards. | |
1023 * If Cursor is right of the screen, scroll leftwards | |
1024 * If we get closer to the edge than 'sidescrolloff', scroll a little | |
1025 * extra | |
1026 */ | |
15713
ad8b2c109b22
patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1027 off_left = (int)startcol - (int)curwin->w_leftcol - siso; |
12515
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patch 8.0.1136: W_WIDTH() is always the same
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1028 off_right = (int)endcol - (int)(curwin->w_leftcol + curwin->w_width |
15713
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
Bram Moolenaar <Bram@vim.org>
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changeset
|
1029 - siso) + 1; |
7 | 1030 if (off_left < 0 || off_right > 0) |
1031 { | |
1032 if (off_left < 0) | |
1033 diff = -off_left; | |
1034 else | |
1035 diff = off_right; | |
1036 | |
18931
80b40bd5ec1a
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Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1037 // When far off or not enough room on either side, put cursor in |
80b40bd5ec1a
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Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1038 // middle of window. |
7 | 1039 if (p_ss == 0 || diff >= textwidth / 2 || off_right >= off_left) |
1040 new_leftcol = curwin->w_wcol - extra - textwidth / 2; | |
1041 else | |
1042 { | |
1043 if (diff < p_ss) | |
1044 diff = p_ss; | |
1045 if (off_left < 0) | |
1046 new_leftcol = curwin->w_leftcol - diff; | |
1047 else | |
1048 new_leftcol = curwin->w_leftcol + diff; | |
1049 } | |
1050 if (new_leftcol < 0) | |
1051 new_leftcol = 0; | |
1052 if (new_leftcol != (int)curwin->w_leftcol) | |
1053 { | |
1054 curwin->w_leftcol = new_leftcol; | |
18931
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1055 // screen has to be redrawn with new curwin->w_leftcol |
7 | 1056 redraw_later(NOT_VALID); |
1057 } | |
1058 } | |
1059 curwin->w_wcol -= curwin->w_leftcol; | |
1060 } | |
1061 else if (curwin->w_wcol > (int)curwin->w_leftcol) | |
1062 curwin->w_wcol -= curwin->w_leftcol; | |
1063 else | |
1064 curwin->w_wcol = 0; | |
1065 | |
1066 #ifdef FEAT_DIFF | |
18931
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|
1067 // Skip over filler lines. At the top use w_topfill, there |
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|
1068 // may be some filler lines above the window. |
7 | 1069 if (curwin->w_cursor.lnum == curwin->w_topline) |
1070 curwin->w_wrow += curwin->w_topfill; | |
1071 else | |
1072 curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum); | |
1073 #endif | |
1074 | |
1075 prev_skipcol = curwin->w_skipcol; | |
1076 | |
1077 p_lines = 0; | |
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
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|
1078 |
7 | 1079 if ((curwin->w_wrow >= curwin->w_height |
1080 || ((prev_skipcol > 0 | |
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changeset
|
1081 || curwin->w_wrow + so >= curwin->w_height) |
7 | 1082 && (p_lines = |
1083 #ifdef FEAT_DIFF | |
1084 plines_win_nofill | |
1085 #else | |
1086 plines_win | |
1087 #endif | |
1088 (curwin, curwin->w_cursor.lnum, FALSE)) | |
1089 - 1 >= curwin->w_height)) | |
1090 && curwin->w_height != 0 | |
1091 && curwin->w_cursor.lnum == curwin->w_topline | |
1092 && width > 0 | |
12477
68d7bc045dbe
patch 8.0.1118: FEAT_WINDOWS adds a lot of #ifdefs
Christian Brabandt <cb@256bit.org>
parents:
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|
1093 && curwin->w_width != 0) |
7 | 1094 { |
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|
1095 // Cursor past end of screen. Happens with a single line that does |
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|
1096 // not fit on screen. Find a skipcol to show the text around the |
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|
1097 // cursor. Avoid scrolling all the time. compute value of "extra": |
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|
1098 // 1: Less than 'scrolloff' lines above |
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|
1099 // 2: Less than 'scrolloff' lines below |
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|
1100 // 3: both of them |
7 | 1101 extra = 0; |
15713
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
Bram Moolenaar <Bram@vim.org>
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|
1102 if (curwin->w_skipcol + so * width > curwin->w_virtcol) |
7 | 1103 extra = 1; |
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|
1104 // Compute last display line of the buffer line that we want at the |
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|
1105 // bottom of the window. |
7 | 1106 if (p_lines == 0) |
1107 p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE); | |
1108 --p_lines; | |
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|
1109 if (p_lines > curwin->w_wrow + so) |
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changeset
|
1110 n = curwin->w_wrow + so; |
7 | 1111 else |
1112 n = p_lines; | |
23905
68f506771741
patch 8.2.2495: text jumps up and down when moving the cursor
Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1113 if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width - so) |
7 | 1114 extra += 2; |
1115 | |
23905
68f506771741
patch 8.2.2495: text jumps up and down when moving the cursor
Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1116 if (extra == 3 || p_lines <= so * 2) |
7 | 1117 { |
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|
1118 // not enough room for 'scrolloff', put cursor in the middle |
7 | 1119 n = curwin->w_virtcol / width; |
1120 if (n > curwin->w_height / 2) | |
1121 n -= curwin->w_height / 2; | |
1122 else | |
1123 n = 0; | |
18931
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parents:
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|
1124 // don't skip more than necessary |
7 | 1125 if (n > p_lines - curwin->w_height + 1) |
1126 n = p_lines - curwin->w_height + 1; | |
1127 curwin->w_skipcol = n * width; | |
1128 } | |
1129 else if (extra == 1) | |
1130 { | |
26771
fc859aea8cec
patch 8.2.3914: various spelling mistakes in comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1131 // less than 'scrolloff' lines above, decrease skipcol |
15713
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1132 extra = (curwin->w_skipcol + so * width - curwin->w_virtcol |
7 | 1133 + width - 1) / width; |
1134 if (extra > 0) | |
1135 { | |
1136 if ((colnr_T)(extra * width) > curwin->w_skipcol) | |
1137 extra = curwin->w_skipcol / width; | |
1138 curwin->w_skipcol -= extra * width; | |
1139 } | |
1140 } | |
1141 else if (extra == 2) | |
1142 { | |
26771
fc859aea8cec
patch 8.2.3914: various spelling mistakes in comments
Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
1143 // less than 'scrolloff' lines below, increase skipcol |
7 | 1144 endcol = (n - curwin->w_height + 1) * width; |
1145 while (endcol > curwin->w_virtcol) | |
1146 endcol -= width; | |
1147 if (endcol > curwin->w_skipcol) | |
1148 curwin->w_skipcol = endcol; | |
1149 } | |
1150 | |
1151 curwin->w_wrow -= curwin->w_skipcol / width; | |
1152 if (curwin->w_wrow >= curwin->w_height) | |
1153 { | |
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|
1154 // small window, make sure cursor is in it |
7 | 1155 extra = curwin->w_wrow - curwin->w_height + 1; |
1156 curwin->w_skipcol += extra * width; | |
1157 curwin->w_wrow -= extra; | |
1158 } | |
1159 | |
1160 extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width; | |
1161 if (extra > 0) | |
1162 win_ins_lines(curwin, 0, extra, FALSE, FALSE); | |
1163 else if (extra < 0) | |
12152
69af108df70e
patch 8.0.0956: scrolling in a terminal window has flicker
Christian Brabandt <cb@256bit.org>
parents:
11258
diff
changeset
|
1164 win_del_lines(curwin, 0, -extra, FALSE, FALSE, 0); |
7 | 1165 } |
1166 else | |
1167 curwin->w_skipcol = 0; | |
1168 if (prev_skipcol != curwin->w_skipcol) | |
1169 redraw_later(NOT_VALID); | |
1170 | |
740 | 1171 #ifdef FEAT_SYN_HL |
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|
1172 // Redraw when w_virtcol changes and 'cursorcolumn' is set |
5749 | 1173 if (curwin->w_p_cuc && (curwin->w_valid & VALID_VIRTCOL) == 0 |
17809
59f8948b7590
patch 8.1.1901: the +insert_expand feature is not always available
Bram Moolenaar <Bram@vim.org>
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changeset
|
1174 && !pum_visible()) |
5749 | 1175 redraw_later(SOME_VALID); |
2178
c6f1aa1e9f32
Add 'relativenumber' patch from Markus Heidelberg.
Bram Moolenaar <bram@vim.org>
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changeset
|
1176 #endif |
19542
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patch 8.2.0328: no redraw when leaving term-normal mode in popup terminal
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|
1177 #if defined(FEAT_PROP_POPUP) && defined(FEAT_TERMINAL) |
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patch 8.2.0328: no redraw when leaving term-normal mode in popup terminal
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|
1178 if (popup_is_popup(curwin) && curbuf->b_term != NULL) |
9e428147e4ee
patch 8.2.0328: no redraw when leaving term-normal mode in popup terminal
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|
1179 { |
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|
1180 curwin->w_wrow += popup_top_extra(curwin); |
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|
1181 curwin->w_wcol += popup_left_extra(curwin); |
22886
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patch 8.2.1990: cursor position wrong in terminal popup with finished job
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|
1182 curwin->w_flags |= WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED; |
19542
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|
1183 } |
22886
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|
1184 else |
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|
1185 curwin->w_flags &= ~(WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED); |
19542
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|
1186 #endif |
740 | 1187 |
18621
a9bfdc5ea1ec
patch 8.1.2303: cursor in wrong position after horizontal scroll
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1188 // now w_leftcol is valid, avoid check_cursor_moved() thinking otherwise |
a9bfdc5ea1ec
patch 8.1.2303: cursor in wrong position after horizontal scroll
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changeset
|
1189 curwin->w_valid_leftcol = curwin->w_leftcol; |
a9bfdc5ea1ec
patch 8.1.2303: cursor in wrong position after horizontal scroll
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|
1190 |
7 | 1191 curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL; |
1192 } | |
1193 | |
18763
49b78d6465e5
patch 8.1.2371: FEAT_TEXT_PROP is a confusing name
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parents:
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diff
changeset
|
1194 #if (defined(FEAT_EVAL) || defined(FEAT_PROP_POPUP)) || defined(PROTO) |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1195 /* |
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patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1196 * Compute the screen position of text character at "pos" in window "wp" |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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|
1197 * The resulting values are one-based, zero when character is not visible. |
8a095d343c59
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|
1198 */ |
17863
08f1dd29550e
patch 8.1.1928: popup windows don't move with the text when making changes
Bram Moolenaar <Bram@vim.org>
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changeset
|
1199 void |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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|
1200 textpos2screenpos( |
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|
1201 win_T *wp, |
8a095d343c59
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changeset
|
1202 pos_T *pos, |
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patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1203 int *rowp, // screen row |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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|
1204 int *scolp, // start screen column |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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|
1205 int *ccolp, // cursor screen column |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1206 int *ecolp) // end screen column |
8a095d343c59
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|
1207 { |
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changeset
|
1208 colnr_T scol = 0, ccol = 0, ecol = 0; |
8a095d343c59
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|
1209 int row = 0; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1210 int rowoff = 0; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1211 colnr_T coloff = 0; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1212 |
25312
7a254d0705e2
patch 8.2.3193: screenpos() is wrong when 'display' is "lastline"
Bram Moolenaar <Bram@vim.org>
parents:
25172
diff
changeset
|
1213 if (pos->lnum >= wp->w_topline && pos->lnum <= wp->w_botline) |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1214 { |
27726
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1215 colnr_T off; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1216 colnr_T col; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1217 int width; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1218 linenr_T lnum = pos->lnum; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
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parents:
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diff
changeset
|
1219 #ifdef FEAT_FOLDING |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
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diff
changeset
|
1220 int is_folded; |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1221 |
27726
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1222 is_folded = hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1223 #endif |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1224 row = plines_m_win(wp, wp->w_topline, lnum - 1) + 1; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1225 #ifdef FEAT_FOLDING |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1226 if (is_folded) |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1227 { |
27352
2bec1976362c
patch 8.2.4204: screenpos() has non-zero row for invisible text
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1228 row += W_WINROW(wp); |
27726
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1229 coloff = wp->w_wincol + 1; |
27352
2bec1976362c
patch 8.2.4204: screenpos() has non-zero row for invisible text
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1230 } |
17292
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patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1231 else |
27726
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1232 #endif |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1233 { |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1234 getvcol(wp, pos, &scol, &ccol, &ecol); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1235 |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1236 // similar to what is done in validate_cursor_col() |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1237 col = scol; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1238 off = win_col_off(wp); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1239 col += off; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1240 width = wp->w_width - off + win_col_off2(wp); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1241 |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1242 // long line wrapping, adjust row |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1243 if (wp->w_p_wrap |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1244 && col >= (colnr_T)wp->w_width |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1245 && width > 0) |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1246 { |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1247 // use same formula as what is used in curs_columns() |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1248 rowoff = ((col - wp->w_width) / width + 1); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1249 col -= rowoff * width; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1250 } |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1251 col -= wp->w_leftcol; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1252 if (col >= wp->w_width) |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1253 col = -1; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1254 if (col >= 0 && row + rowoff <= wp->w_height) |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1255 { |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1256 coloff = col - scol + wp->w_wincol + 1; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1257 row += W_WINROW(wp); |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1258 } |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1259 else |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
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parents:
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diff
changeset
|
1260 // character is left, right or below of the window |
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patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1261 row = rowoff = scol = ccol = ecol = 0; |
d3ed8b1a7bde
patch 8.2.4389: screenpos() does not handle a position in a closed fold
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1262 } |
17292
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|
1263 } |
27352
2bec1976362c
patch 8.2.4204: screenpos() has non-zero row for invisible text
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1264 *rowp = row + rowoff; |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1265 *scolp = scol + coloff; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1266 *ccolp = ccol + coloff; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1267 *ecolp = ecol + coloff; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1268 } |
17863
08f1dd29550e
patch 8.1.1928: popup windows don't move with the text when making changes
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
1269 #endif |
17292
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1270 |
17863
08f1dd29550e
patch 8.1.1928: popup windows don't move with the text when making changes
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
1271 #if defined(FEAT_EVAL) || defined(PROTO) |
17292
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patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1272 /* |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1273 * "screenpos({winid}, {lnum}, {col})" function |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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|
1274 */ |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1275 void |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1276 f_screenpos(typval_T *argvars UNUSED, typval_T *rettv) |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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changeset
|
1277 { |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1278 dict_T *dict; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1279 win_T *wp; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1280 pos_T pos; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1281 int row = 0; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1282 int scol = 0, ccol = 0, ecol = 0; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1283 |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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changeset
|
1284 if (rettv_dict_alloc(rettv) != OK) |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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parents:
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diff
changeset
|
1285 return; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1286 dict = rettv->vval.v_dict; |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1287 |
25384
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
Bram Moolenaar <Bram@vim.org>
parents:
25312
diff
changeset
|
1288 if (in_vim9script() |
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1289 && (check_for_number_arg(argvars, 0) == FAIL |
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1290 || check_for_number_arg(argvars, 1) == FAIL |
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
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changeset
|
1291 || check_for_number_arg(argvars, 2) == FAIL)) |
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
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changeset
|
1292 return; |
e8e2c4d33b9b
patch 8.2.3229: Vim9: runtime and compile time type checks are not the same
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1293 |
17292
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changeset
|
1294 wp = find_win_by_nr_or_id(&argvars[0]); |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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changeset
|
1295 if (wp == NULL) |
8a095d343c59
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1296 return; |
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patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1297 |
8a095d343c59
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changeset
|
1298 pos.lnum = tv_get_number(&argvars[1]); |
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changeset
|
1299 pos.col = tv_get_number(&argvars[2]) - 1; |
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changeset
|
1300 pos.coladd = 0; |
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diff
changeset
|
1301 textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol); |
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changeset
|
1302 |
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diff
changeset
|
1303 dict_add_number(dict, "row", row); |
8a095d343c59
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diff
changeset
|
1304 dict_add_number(dict, "col", scol); |
8a095d343c59
patch 8.1.1645: cannot use a popup window for a balloon
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diff
changeset
|
1305 dict_add_number(dict, "curscol", ccol); |
8a095d343c59
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1306 dict_add_number(dict, "endcol", ecol); |
8a095d343c59
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changeset
|
1307 } |
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diff
changeset
|
1308 #endif |
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diff
changeset
|
1309 |
7 | 1310 /* |
1311 * Scroll the current window down by "line_count" logical lines. "CTRL-Y" | |
1312 */ | |
1313 void | |
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
1314 scrolldown( |
2a8d6b2dd925
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1315 long line_count, |
18931
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
Bram Moolenaar <Bram@vim.org>
parents:
18892
diff
changeset
|
1316 int byfold UNUSED) // TRUE: count a closed fold as one line |
7 | 1317 { |
18931
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1318 long done = 0; // total # of physical lines done |
7 | 1319 int wrow; |
1320 int moved = FALSE; | |
1321 | |
1322 #ifdef FEAT_FOLDING | |
1323 linenr_T first; | |
1324 | |
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1325 // Make sure w_topline is at the first of a sequence of folded lines. |
7 | 1326 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
1327 #endif | |
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1328 validate_cursor(); // w_wrow needs to be valid |
7 | 1329 while (line_count-- > 0) |
1330 { | |
1331 #ifdef FEAT_DIFF | |
1980 | 1332 if (curwin->w_topfill < diff_check(curwin, curwin->w_topline) |
1333 && curwin->w_topfill < curwin->w_height - 1) | |
7 | 1334 { |
1335 ++curwin->w_topfill; | |
1336 ++done; | |
1337 } | |
1338 else | |
1339 #endif | |
1340 { | |
1341 if (curwin->w_topline == 1) | |
1342 break; | |
1343 --curwin->w_topline; | |
1344 #ifdef FEAT_DIFF | |
1345 curwin->w_topfill = 0; | |
1346 #endif | |
1347 #ifdef FEAT_FOLDING | |
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1348 // A sequence of folded lines only counts for one logical line |
7 | 1349 if (hasFolding(curwin->w_topline, &first, NULL)) |
1350 { | |
1351 ++done; | |
1352 if (!byfold) | |
1353 line_count -= curwin->w_topline - first - 1; | |
1354 curwin->w_botline -= curwin->w_topline - first; | |
1355 curwin->w_topline = first; | |
1356 } | |
1357 else | |
1358 #endif | |
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1359 done += PLINES_NOFILL(curwin->w_topline); |
7 | 1360 } |
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1361 --curwin->w_botline; // approximate w_botline |
7 | 1362 invalidate_botline(); |
1363 } | |
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1364 curwin->w_wrow += done; // keep w_wrow updated |
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1365 curwin->w_cline_row += done; // keep w_cline_row updated |
7 | 1366 |
1367 #ifdef FEAT_DIFF | |
1368 if (curwin->w_cursor.lnum == curwin->w_topline) | |
1369 curwin->w_cline_row = 0; | |
1370 check_topfill(curwin, TRUE); | |
1371 #endif | |
1372 | |
1373 /* | |
1374 * Compute the row number of the last row of the cursor line | |
1375 * and move the cursor onto the displayed part of the window. | |
1376 */ | |
1377 wrow = curwin->w_wrow; | |
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1378 if (curwin->w_p_wrap && curwin->w_width != 0) |
7 | 1379 { |
1380 validate_virtcol(); | |
1381 validate_cheight(); | |
1382 wrow += curwin->w_cline_height - 1 - | |
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1383 curwin->w_virtcol / curwin->w_width; |
7 | 1384 } |
1385 while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1) | |
1386 { | |
1387 #ifdef FEAT_FOLDING | |
1388 if (hasFolding(curwin->w_cursor.lnum, &first, NULL)) | |
1389 { | |
1390 --wrow; | |
1391 if (first == 1) | |
1392 curwin->w_cursor.lnum = 1; | |
1393 else | |
1394 curwin->w_cursor.lnum = first - 1; | |
1395 } | |
1396 else | |
1397 #endif | |
1398 wrow -= plines(curwin->w_cursor.lnum--); | |
1399 curwin->w_valid &= | |
1400 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL); | |
1401 moved = TRUE; | |
1402 } | |
1403 if (moved) | |
1404 { | |
1405 #ifdef FEAT_FOLDING | |
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1406 // Move cursor to first line of closed fold. |
7 | 1407 foldAdjustCursor(); |
1408 #endif | |
1409 coladvance(curwin->w_curswant); | |
1410 } | |
1411 } | |
1412 | |
1413 /* | |
1414 * Scroll the current window up by "line_count" logical lines. "CTRL-E" | |
1415 */ | |
1416 void | |
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1417 scrollup( |
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1418 long line_count, |
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1419 int byfold UNUSED) // TRUE: count a closed fold as one line |
7 | 1420 { |
1421 #if defined(FEAT_FOLDING) || defined(FEAT_DIFF) | |
1422 linenr_T lnum; | |
1423 | |
1424 if ( | |
1425 # ifdef FEAT_FOLDING | |
1426 (byfold && hasAnyFolding(curwin)) | |
1427 # ifdef FEAT_DIFF | |
1428 || | |
1429 # endif | |
1430 # endif | |
1431 # ifdef FEAT_DIFF | |
1432 curwin->w_p_diff | |
1433 # endif | |
1434 ) | |
1435 { | |
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1436 // count each sequence of folded lines as one logical line |
7 | 1437 lnum = curwin->w_topline; |
1438 while (line_count--) | |
1439 { | |
1440 # ifdef FEAT_DIFF | |
1441 if (curwin->w_topfill > 0) | |
1442 --curwin->w_topfill; | |
1443 else | |
1444 # endif | |
1445 { | |
1446 # ifdef FEAT_FOLDING | |
1447 if (byfold) | |
1448 (void)hasFolding(lnum, NULL, &lnum); | |
1449 # endif | |
1450 if (lnum >= curbuf->b_ml.ml_line_count) | |
1451 break; | |
1452 ++lnum; | |
1453 # ifdef FEAT_DIFF | |
1454 curwin->w_topfill = diff_check_fill(curwin, lnum); | |
1455 # endif | |
1456 } | |
1457 } | |
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1458 // approximate w_botline |
7 | 1459 curwin->w_botline += lnum - curwin->w_topline; |
1460 curwin->w_topline = lnum; | |
1461 } | |
1462 else | |
1463 #endif | |
1464 { | |
1465 curwin->w_topline += line_count; | |
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1466 curwin->w_botline += line_count; // approximate w_botline |
7 | 1467 } |
1468 | |
1469 if (curwin->w_topline > curbuf->b_ml.ml_line_count) | |
1470 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
1471 if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1) | |
1472 curwin->w_botline = curbuf->b_ml.ml_line_count + 1; | |
1473 | |
1474 #ifdef FEAT_DIFF | |
1475 check_topfill(curwin, FALSE); | |
1476 #endif | |
1477 | |
1478 #ifdef FEAT_FOLDING | |
1479 if (hasAnyFolding(curwin)) | |
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1480 // Make sure w_topline is at the first of a sequence of folded lines. |
7 | 1481 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
1482 #endif | |
1483 | |
1484 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
1485 if (curwin->w_cursor.lnum < curwin->w_topline) | |
1486 { | |
1487 curwin->w_cursor.lnum = curwin->w_topline; | |
1488 curwin->w_valid &= | |
1489 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL); | |
1490 coladvance(curwin->w_curswant); | |
1491 } | |
1492 } | |
1493 | |
1494 #ifdef FEAT_DIFF | |
1495 /* | |
1496 * Don't end up with too many filler lines in the window. | |
1497 */ | |
1498 void | |
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|
1499 check_topfill( |
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1500 win_T *wp, |
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1501 int down) // when TRUE scroll down when not enough space |
7 | 1502 { |
1503 int n; | |
1504 | |
1505 if (wp->w_topfill > 0) | |
1506 { | |
1507 n = plines_win_nofill(wp, wp->w_topline, TRUE); | |
1508 if (wp->w_topfill + n > wp->w_height) | |
1509 { | |
1510 if (down && wp->w_topline > 1) | |
1511 { | |
1512 --wp->w_topline; | |
1513 wp->w_topfill = 0; | |
1514 } | |
1515 else | |
1516 { | |
1517 wp->w_topfill = wp->w_height - n; | |
1518 if (wp->w_topfill < 0) | |
1519 wp->w_topfill = 0; | |
1520 } | |
1521 } | |
1522 } | |
1523 } | |
1524 | |
1525 /* | |
1526 * Use as many filler lines as possible for w_topline. Make sure w_topline | |
1527 * is still visible. | |
1528 */ | |
1529 static void | |
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changeset
|
1530 max_topfill(void) |
7 | 1531 { |
1532 int n; | |
1533 | |
1534 n = plines_nofill(curwin->w_topline); | |
1535 if (n >= curwin->w_height) | |
1536 curwin->w_topfill = 0; | |
1537 else | |
1538 { | |
1539 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
1540 if (curwin->w_topfill + n > curwin->w_height) | |
1541 curwin->w_topfill = curwin->w_height - n; | |
1542 } | |
1543 } | |
1544 #endif | |
1545 | |
1546 /* | |
1547 * Scroll the screen one line down, but don't do it if it would move the | |
1548 * cursor off the screen. | |
1549 */ | |
1550 void | |
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changeset
|
1551 scrolldown_clamp(void) |
7 | 1552 { |
1553 int end_row; | |
1554 #ifdef FEAT_DIFF | |
1555 int can_fill = (curwin->w_topfill | |
1556 < diff_check_fill(curwin, curwin->w_topline)); | |
1557 #endif | |
1558 | |
1559 if (curwin->w_topline <= 1 | |
1560 #ifdef FEAT_DIFF | |
1561 && !can_fill | |
1562 #endif | |
1563 ) | |
1564 return; | |
1565 | |
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1566 validate_cursor(); // w_wrow needs to be valid |
7 | 1567 |
1568 /* | |
1569 * Compute the row number of the last row of the cursor line | |
1570 * and make sure it doesn't go off the screen. Make sure the cursor | |
1571 * doesn't go past 'scrolloff' lines from the screen end. | |
1572 */ | |
1573 end_row = curwin->w_wrow; | |
1574 #ifdef FEAT_DIFF | |
1575 if (can_fill) | |
1576 ++end_row; | |
1577 else | |
1578 end_row += plines_nofill(curwin->w_topline - 1); | |
1579 #else | |
1580 end_row += plines(curwin->w_topline - 1); | |
1581 #endif | |
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1582 if (curwin->w_p_wrap && curwin->w_width != 0) |
7 | 1583 { |
1584 validate_cheight(); | |
1585 validate_virtcol(); | |
1586 end_row += curwin->w_cline_height - 1 - | |
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1587 curwin->w_virtcol / curwin->w_width; |
7 | 1588 } |
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1589 if (end_row < curwin->w_height - get_scrolloff_value()) |
7 | 1590 { |
1591 #ifdef FEAT_DIFF | |
1592 if (can_fill) | |
1593 { | |
1594 ++curwin->w_topfill; | |
1595 check_topfill(curwin, TRUE); | |
1596 } | |
1597 else | |
1598 { | |
1599 --curwin->w_topline; | |
1600 curwin->w_topfill = 0; | |
1601 } | |
1602 #else | |
1603 --curwin->w_topline; | |
1604 #endif | |
1605 #ifdef FEAT_FOLDING | |
7009 | 1606 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
7 | 1607 #endif |
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1608 --curwin->w_botline; // approximate w_botline |
7 | 1609 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); |
1610 } | |
1611 } | |
1612 | |
1613 /* | |
1614 * Scroll the screen one line up, but don't do it if it would move the cursor | |
1615 * off the screen. | |
1616 */ | |
1617 void | |
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1618 scrollup_clamp(void) |
7 | 1619 { |
1620 int start_row; | |
1621 | |
1622 if (curwin->w_topline == curbuf->b_ml.ml_line_count | |
1623 #ifdef FEAT_DIFF | |
1624 && curwin->w_topfill == 0 | |
1625 #endif | |
1626 ) | |
1627 return; | |
1628 | |
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|
1629 validate_cursor(); // w_wrow needs to be valid |
7 | 1630 |
1631 /* | |
1632 * Compute the row number of the first row of the cursor line | |
1633 * and make sure it doesn't go off the screen. Make sure the cursor | |
1634 * doesn't go before 'scrolloff' lines from the screen start. | |
1635 */ | |
1636 #ifdef FEAT_DIFF | |
1637 start_row = curwin->w_wrow - plines_nofill(curwin->w_topline) | |
1638 - curwin->w_topfill; | |
1639 #else | |
1640 start_row = curwin->w_wrow - plines(curwin->w_topline); | |
1641 #endif | |
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1642 if (curwin->w_p_wrap && curwin->w_width != 0) |
7 | 1643 { |
1644 validate_virtcol(); | |
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1645 start_row -= curwin->w_virtcol / curwin->w_width; |
7 | 1646 } |
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1647 if (start_row >= get_scrolloff_value()) |
7 | 1648 { |
1649 #ifdef FEAT_DIFF | |
1650 if (curwin->w_topfill > 0) | |
1651 --curwin->w_topfill; | |
1652 else | |
1653 #endif | |
36 | 1654 { |
1655 #ifdef FEAT_FOLDING | |
1656 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline); | |
1657 #endif | |
7 | 1658 ++curwin->w_topline; |
36 | 1659 } |
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1660 ++curwin->w_botline; // approximate w_botline |
7 | 1661 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); |
1662 } | |
1663 } | |
1664 | |
1665 /* | |
1666 * Add one line above "lp->lnum". This can be a filler line, a closed fold or | |
1667 * a (wrapped) text line. Uses and sets "lp->fill". | |
1668 * Returns the height of the added line in "lp->height". | |
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1669 * Lines above the first one are incredibly high: MAXCOL. |
7 | 1670 */ |
1671 static void | |
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changeset
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1672 topline_back(lineoff_T *lp) |
7 | 1673 { |
1674 #ifdef FEAT_DIFF | |
1675 if (lp->fill < diff_check_fill(curwin, lp->lnum)) | |
1676 { | |
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1677 // Add a filler line. |
7 | 1678 ++lp->fill; |
1679 lp->height = 1; | |
1680 } | |
1681 else | |
1682 #endif | |
1683 { | |
1684 --lp->lnum; | |
1685 #ifdef FEAT_DIFF | |
1686 lp->fill = 0; | |
1687 #endif | |
1688 if (lp->lnum < 1) | |
1689 lp->height = MAXCOL; | |
1690 else | |
1691 #ifdef FEAT_FOLDING | |
1692 if (hasFolding(lp->lnum, &lp->lnum, NULL)) | |
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1693 // Add a closed fold |
7 | 1694 lp->height = 1; |
1695 else | |
1696 #endif | |
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changeset
|
1697 lp->height = PLINES_NOFILL(lp->lnum); |
7 | 1698 } |
1699 } | |
1700 | |
1701 /* | |
1702 * Add one line below "lp->lnum". This can be a filler line, a closed fold or | |
1703 * a (wrapped) text line. Uses and sets "lp->fill". | |
1704 * Returns the height of the added line in "lp->height". | |
1705 * Lines below the last one are incredibly high. | |
1706 */ | |
1707 static void | |
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changeset
|
1708 botline_forw(lineoff_T *lp) |
7 | 1709 { |
1710 #ifdef FEAT_DIFF | |
1711 if (lp->fill < diff_check_fill(curwin, lp->lnum + 1)) | |
1712 { | |
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1713 // Add a filler line. |
7 | 1714 ++lp->fill; |
1715 lp->height = 1; | |
1716 } | |
1717 else | |
1718 #endif | |
1719 { | |
1720 ++lp->lnum; | |
1721 #ifdef FEAT_DIFF | |
1722 lp->fill = 0; | |
1723 #endif | |
1724 if (lp->lnum > curbuf->b_ml.ml_line_count) | |
1725 lp->height = MAXCOL; | |
1726 else | |
1727 #ifdef FEAT_FOLDING | |
1728 if (hasFolding(lp->lnum, NULL, &lp->lnum)) | |
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1729 // Add a closed fold |
7 | 1730 lp->height = 1; |
1731 else | |
1732 #endif | |
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changeset
|
1733 lp->height = PLINES_NOFILL(lp->lnum); |
7 | 1734 } |
1735 } | |
1736 | |
1737 #ifdef FEAT_DIFF | |
1738 /* | |
1739 * Switch from including filler lines below lp->lnum to including filler | |
1740 * lines above loff.lnum + 1. This keeps pointing to the same line. | |
1741 * When there are no filler lines nothing changes. | |
1742 */ | |
1743 static void | |
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diff
changeset
|
1744 botline_topline(lineoff_T *lp) |
7 | 1745 { |
1746 if (lp->fill > 0) | |
1747 { | |
1748 ++lp->lnum; | |
1749 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1; | |
1750 } | |
1751 } | |
1752 | |
1753 /* | |
1754 * Switch from including filler lines above lp->lnum to including filler | |
1755 * lines below loff.lnum - 1. This keeps pointing to the same line. | |
1756 * When there are no filler lines nothing changes. | |
1757 */ | |
1758 static void | |
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diff
changeset
|
1759 topline_botline(lineoff_T *lp) |
7 | 1760 { |
1761 if (lp->fill > 0) | |
1762 { | |
1763 lp->fill = diff_check_fill(curwin, lp->lnum) - lp->fill + 1; | |
1764 --lp->lnum; | |
1765 } | |
1766 } | |
1767 #endif | |
1768 | |
1769 /* | |
1770 * Recompute topline to put the cursor at the top of the window. | |
1771 * Scroll at least "min_scroll" lines. | |
1772 * If "always" is TRUE, always set topline (for "zt"). | |
1773 */ | |
1774 void | |
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changeset
|
1775 scroll_cursor_top(int min_scroll, int always) |
7 | 1776 { |
1777 int scrolled = 0; | |
1778 int extra = 0; | |
1779 int used; | |
1780 int i; | |
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1781 linenr_T top; // just above displayed lines |
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|
1782 linenr_T bot; // just below displayed lines |
7 | 1783 linenr_T old_topline = curwin->w_topline; |
1784 #ifdef FEAT_DIFF | |
1785 linenr_T old_topfill = curwin->w_topfill; | |
1786 #endif | |
1787 linenr_T new_topline; | |
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|
1788 int off = get_scrolloff_value(); |
7 | 1789 |
1790 if (mouse_dragging > 0) | |
1791 off = mouse_dragging - 1; | |
1792 | |
1793 /* | |
1794 * Decrease topline until: | |
1795 * - it has become 1 | |
1796 * - (part of) the cursor line is moved off the screen or | |
1797 * - moved at least 'scrolljump' lines and | |
1798 * - at least 'scrolloff' lines above and below the cursor | |
1799 */ | |
1800 validate_cheight(); | |
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1801 used = curwin->w_cline_height; // includes filler lines above |
7 | 1802 if (curwin->w_cursor.lnum < curwin->w_topline) |
1803 scrolled = used; | |
1804 | |
1805 #ifdef FEAT_FOLDING | |
1806 if (hasFolding(curwin->w_cursor.lnum, &top, &bot)) | |
1807 { | |
1808 --top; | |
1809 ++bot; | |
1810 } | |
1811 else | |
1812 #endif | |
1813 { | |
1814 top = curwin->w_cursor.lnum - 1; | |
1815 bot = curwin->w_cursor.lnum + 1; | |
1816 } | |
1817 new_topline = top + 1; | |
1818 | |
1819 #ifdef FEAT_DIFF | |
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1820 // "used" already contains the number of filler lines above, don't add it |
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1821 // again. |
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1822 // Hide filler lines above cursor line by adding them to "extra". |
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changeset
|
1823 extra += diff_check_fill(curwin, curwin->w_cursor.lnum); |
7 | 1824 #endif |
1825 | |
1826 /* | |
1827 * Check if the lines from "top" to "bot" fit in the window. If they do, | |
1828 * set new_topline and advance "top" and "bot" to include more lines. | |
1829 */ | |
1830 while (top > 0) | |
1831 { | |
1832 #ifdef FEAT_FOLDING | |
1833 if (hasFolding(top, &top, NULL)) | |
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1834 // count one logical line for a sequence of folded lines |
7 | 1835 i = 1; |
1836 else | |
1837 #endif | |
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changeset
|
1838 i = PLINES_NOFILL(top); |
7 | 1839 used += i; |
1840 if (extra + i <= off && bot < curbuf->b_ml.ml_line_count) | |
1841 { | |
1842 #ifdef FEAT_FOLDING | |
1843 if (hasFolding(bot, NULL, &bot)) | |
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1844 // count one logical line for a sequence of folded lines |
7 | 1845 ++used; |
1846 else | |
1847 #endif | |
1848 used += plines(bot); | |
1849 } | |
1850 if (used > curwin->w_height) | |
1851 break; | |
1852 if (top < curwin->w_topline) | |
1853 scrolled += i; | |
1854 | |
1855 /* | |
1856 * If scrolling is needed, scroll at least 'sj' lines. | |
1857 */ | |
1858 if ((new_topline >= curwin->w_topline || scrolled > min_scroll) | |
1859 && extra >= off) | |
1860 break; | |
1861 | |
1862 extra += i; | |
1863 new_topline = top; | |
1864 --top; | |
1865 ++bot; | |
1866 } | |
1867 | |
1868 /* | |
1869 * If we don't have enough space, put cursor in the middle. | |
1870 * This makes sure we get the same position when using "k" and "j" | |
1871 * in a small window. | |
1872 */ | |
1873 if (used > curwin->w_height) | |
1874 scroll_cursor_halfway(FALSE); | |
1875 else | |
1876 { | |
1877 /* | |
1878 * If "always" is FALSE, only adjust topline to a lower value, higher | |
1879 * value may happen with wrapping lines | |
1880 */ | |
1881 if (new_topline < curwin->w_topline || always) | |
1882 curwin->w_topline = new_topline; | |
1883 if (curwin->w_topline > curwin->w_cursor.lnum) | |
1884 curwin->w_topline = curwin->w_cursor.lnum; | |
1885 #ifdef FEAT_DIFF | |
1886 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
1887 if (curwin->w_topfill > 0 && extra > off) | |
1888 { | |
1889 curwin->w_topfill -= extra - off; | |
1890 if (curwin->w_topfill < 0) | |
1891 curwin->w_topfill = 0; | |
1892 } | |
1893 check_topfill(curwin, FALSE); | |
1894 #endif | |
1895 if (curwin->w_topline != old_topline | |
1896 #ifdef FEAT_DIFF | |
1897 || curwin->w_topfill != old_topfill | |
1898 #endif | |
1899 ) | |
1900 curwin->w_valid &= | |
1901 ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
1902 curwin->w_valid |= VALID_TOPLINE; | |
1903 } | |
1904 } | |
1905 | |
1906 /* | |
1907 * Set w_empty_rows and w_filler_rows for window "wp", having used up "used" | |
1908 * screen lines for text lines. | |
1909 */ | |
1910 void | |
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1911 set_empty_rows(win_T *wp, int used) |
7 | 1912 { |
1913 #ifdef FEAT_DIFF | |
1914 wp->w_filler_rows = 0; | |
1915 #endif | |
1916 if (used == 0) | |
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1917 wp->w_empty_rows = 0; // single line that doesn't fit |
7 | 1918 else |
1919 { | |
1920 wp->w_empty_rows = wp->w_height - used; | |
1921 #ifdef FEAT_DIFF | |
1922 if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count) | |
1923 { | |
1924 wp->w_filler_rows = diff_check_fill(wp, wp->w_botline); | |
1925 if (wp->w_empty_rows > wp->w_filler_rows) | |
1926 wp->w_empty_rows -= wp->w_filler_rows; | |
1927 else | |
1928 { | |
1929 wp->w_filler_rows = wp->w_empty_rows; | |
1930 wp->w_empty_rows = 0; | |
1931 } | |
1932 } | |
1933 #endif | |
1934 } | |
1935 } | |
1936 | |
1937 /* | |
1938 * Recompute topline to put the cursor at the bottom of the window. | |
1939 * Scroll at least "min_scroll" lines. | |
1940 * If "set_topbot" is TRUE, set topline and botline first (for "zb"). | |
1941 * This is messy stuff!!! | |
1942 */ | |
1943 void | |
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1944 scroll_cursor_bot(int min_scroll, int set_topbot) |
7 | 1945 { |
1946 int used; | |
1947 int scrolled = 0; | |
1948 int extra = 0; | |
1949 int i; | |
1950 linenr_T line_count; | |
1951 linenr_T old_topline = curwin->w_topline; | |
1952 lineoff_T loff; | |
1953 lineoff_T boff; | |
1954 #ifdef FEAT_DIFF | |
1955 int old_topfill = curwin->w_topfill; | |
1956 int fill_below_window; | |
1957 #endif | |
1958 linenr_T old_botline = curwin->w_botline; | |
1959 linenr_T old_valid = curwin->w_valid; | |
1960 int old_empty_rows = curwin->w_empty_rows; | |
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1961 linenr_T cln; // Cursor Line Number |
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1962 long so = get_scrolloff_value(); |
7 | 1963 |
1964 cln = curwin->w_cursor.lnum; | |
1965 if (set_topbot) | |
1966 { | |
1967 used = 0; | |
1968 curwin->w_botline = cln + 1; | |
1969 #ifdef FEAT_DIFF | |
1970 loff.fill = 0; | |
1971 #endif | |
1972 for (curwin->w_topline = curwin->w_botline; | |
1973 curwin->w_topline > 1; | |
1974 curwin->w_topline = loff.lnum) | |
1975 { | |
1976 loff.lnum = curwin->w_topline; | |
1977 topline_back(&loff); | |
2082
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1978 if (loff.height == MAXCOL || used + loff.height > curwin->w_height) |
7 | 1979 break; |
1980 used += loff.height; | |
1981 #ifdef FEAT_DIFF | |
1982 curwin->w_topfill = loff.fill; | |
1983 #endif | |
1984 } | |
1985 set_empty_rows(curwin, used); | |
1986 curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP; | |
1987 if (curwin->w_topline != old_topline | |
1988 #ifdef FEAT_DIFF | |
1989 || curwin->w_topfill != old_topfill | |
1990 #endif | |
1991 ) | |
1992 curwin->w_valid &= ~(VALID_WROW|VALID_CROW); | |
1993 } | |
1994 else | |
1995 validate_botline(); | |
1996 | |
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1997 // The lines of the cursor line itself are always used. |
7 | 1998 #ifdef FEAT_DIFF |
1999 used = plines_nofill(cln); | |
2000 #else | |
2001 validate_cheight(); | |
2002 used = curwin->w_cline_height; | |
2003 #endif | |
2004 | |
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2005 // If the cursor is below botline, we will at least scroll by the height |
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2006 // of the cursor line. Correct for empty lines, which are really part of |
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|
2007 // botline. |
7 | 2008 if (cln >= curwin->w_botline) |
2009 { | |
2010 scrolled = used; | |
2011 if (cln == curwin->w_botline) | |
2012 scrolled -= curwin->w_empty_rows; | |
2013 } | |
2014 | |
2015 /* | |
2016 * Stop counting lines to scroll when | |
2017 * - hitting start of the file | |
2018 * - scrolled nothing or at least 'sj' lines | |
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2019 * - at least 'scrolloff' lines below the cursor |
7 | 2020 * - lines between botline and cursor have been counted |
2021 */ | |
2022 #ifdef FEAT_FOLDING | |
2023 if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum)) | |
2024 #endif | |
2025 { | |
2026 loff.lnum = cln; | |
2027 boff.lnum = cln; | |
2028 } | |
2029 #ifdef FEAT_DIFF | |
2030 loff.fill = 0; | |
2031 boff.fill = 0; | |
2032 fill_below_window = diff_check_fill(curwin, curwin->w_botline) | |
2033 - curwin->w_filler_rows; | |
2034 #endif | |
2035 | |
2036 while (loff.lnum > 1) | |
2037 { | |
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2038 // Stop when scrolled nothing or at least "min_scroll", found "extra" |
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2039 // context for 'scrolloff' and counted all lines below the window. |
7 | 2040 if ((((scrolled <= 0 || scrolled >= min_scroll) |
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2041 && extra >= (mouse_dragging > 0 ? mouse_dragging - 1 : so)) |
7 | 2042 || boff.lnum + 1 > curbuf->b_ml.ml_line_count) |
2043 && loff.lnum <= curwin->w_botline | |
2044 #ifdef FEAT_DIFF | |
2045 && (loff.lnum < curwin->w_botline | |
2046 || loff.fill >= fill_below_window) | |
2047 #endif | |
2048 ) | |
2049 break; | |
2050 | |
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2051 // Add one line above |
7 | 2052 topline_back(&loff); |
2082
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2053 if (loff.height == MAXCOL) |
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2054 used = MAXCOL; |
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2055 else |
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2056 used += loff.height; |
7 | 2057 if (used > curwin->w_height) |
2058 break; | |
2059 if (loff.lnum >= curwin->w_botline | |
2060 #ifdef FEAT_DIFF | |
2061 && (loff.lnum > curwin->w_botline | |
2062 || loff.fill <= fill_below_window) | |
2063 #endif | |
2064 ) | |
2065 { | |
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2066 // Count screen lines that are below the window. |
7 | 2067 scrolled += loff.height; |
2068 if (loff.lnum == curwin->w_botline | |
2069 #ifdef FEAT_DIFF | |
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2070 && loff.fill == 0 |
7 | 2071 #endif |
2072 ) | |
2073 scrolled -= curwin->w_empty_rows; | |
2074 } | |
2075 | |
2076 if (boff.lnum < curbuf->b_ml.ml_line_count) | |
2077 { | |
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|
2078 // Add one line below |
7 | 2079 botline_forw(&boff); |
2080 used += boff.height; | |
2081 if (used > curwin->w_height) | |
2082 break; | |
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2083 if (extra < ( mouse_dragging > 0 ? mouse_dragging - 1 : so) |
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2084 || scrolled < min_scroll) |
7 | 2085 { |
2086 extra += boff.height; | |
2087 if (boff.lnum >= curwin->w_botline | |
2088 #ifdef FEAT_DIFF | |
2089 || (boff.lnum + 1 == curwin->w_botline | |
2090 && boff.fill > curwin->w_filler_rows) | |
2091 #endif | |
2092 ) | |
2093 { | |
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|
2094 // Count screen lines that are below the window. |
7 | 2095 scrolled += boff.height; |
2096 if (boff.lnum == curwin->w_botline | |
2097 #ifdef FEAT_DIFF | |
2098 && boff.fill == 0 | |
2099 #endif | |
2100 ) | |
2101 scrolled -= curwin->w_empty_rows; | |
2102 } | |
2103 } | |
2104 } | |
2105 } | |
2106 | |
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2107 // curwin->w_empty_rows is larger, no need to scroll |
7 | 2108 if (scrolled <= 0) |
2109 line_count = 0; | |
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2110 // more than a screenfull, don't scroll but redraw |
7 | 2111 else if (used > curwin->w_height) |
2112 line_count = used; | |
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2113 // scroll minimal number of lines |
7 | 2114 else |
2115 { | |
2116 line_count = 0; | |
2117 #ifdef FEAT_DIFF | |
2118 boff.fill = curwin->w_topfill; | |
2119 #endif | |
2120 boff.lnum = curwin->w_topline - 1; | |
2121 for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; ) | |
2122 { | |
2123 botline_forw(&boff); | |
2124 i += boff.height; | |
2125 ++line_count; | |
2126 } | |
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parents:
18892
diff
changeset
|
2127 if (i < scrolled) // below curwin->w_botline, don't scroll |
7 | 2128 line_count = 9999; |
2129 } | |
2130 | |
2131 /* | |
2132 * Scroll up if the cursor is off the bottom of the screen a bit. | |
2133 * Otherwise put it at 1/2 of the screen. | |
2134 */ | |
2135 if (line_count >= curwin->w_height && line_count > min_scroll) | |
2136 scroll_cursor_halfway(FALSE); | |
2137 else | |
2138 scrollup(line_count, TRUE); | |
2139 | |
2140 /* | |
2141 * If topline didn't change we need to restore w_botline and w_empty_rows | |
2142 * (we changed them). | |
2143 * If topline did change, update_screen() will set botline. | |
2144 */ | |
2145 if (curwin->w_topline == old_topline && set_topbot) | |
2146 { | |
2147 curwin->w_botline = old_botline; | |
2148 curwin->w_empty_rows = old_empty_rows; | |
2149 curwin->w_valid = old_valid; | |
2150 } | |
2151 curwin->w_valid |= VALID_TOPLINE; | |
2152 } | |
2153 | |
2154 /* | |
2155 * Recompute topline to put the cursor halfway the window | |
2156 * If "atend" is TRUE, also put it halfway at the end of the file. | |
2157 */ | |
2158 void | |
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commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2159 scroll_cursor_halfway(int atend) |
7 | 2160 { |
2161 int above = 0; | |
2162 linenr_T topline; | |
2163 #ifdef FEAT_DIFF | |
2164 int topfill = 0; | |
2165 #endif | |
2166 int below = 0; | |
2167 int used; | |
2168 lineoff_T loff; | |
2169 lineoff_T boff; | |
5661 | 2170 #ifdef FEAT_DIFF |
5653 | 2171 linenr_T old_topline = curwin->w_topline; |
5661 | 2172 #endif |
7 | 2173 |
22403
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diff
changeset
|
2174 #ifdef FEAT_PROP_POPUP |
3351d2cd3f1f
patch 8.2.1750: popup_setoptions() setting firstline fails if cursorline set
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diff
changeset
|
2175 // if the width changed this needs to be updated first |
3351d2cd3f1f
patch 8.2.1750: popup_setoptions() setting firstline fails if cursorline set
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diff
changeset
|
2176 may_update_popup_position(); |
3351d2cd3f1f
patch 8.2.1750: popup_setoptions() setting firstline fails if cursorline set
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parents:
21321
diff
changeset
|
2177 #endif |
7 | 2178 loff.lnum = boff.lnum = curwin->w_cursor.lnum; |
2179 #ifdef FEAT_FOLDING | |
2180 (void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum); | |
2181 #endif | |
2182 #ifdef FEAT_DIFF | |
2183 used = plines_nofill(loff.lnum); | |
2184 loff.fill = 0; | |
2185 boff.fill = 0; | |
2186 #else | |
2187 used = plines(loff.lnum); | |
2188 #endif | |
2189 topline = loff.lnum; | |
2190 while (topline > 1) | |
2191 { | |
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parents:
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diff
changeset
|
2192 if (below <= above) // add a line below the cursor first |
7 | 2193 { |
2194 if (boff.lnum < curbuf->b_ml.ml_line_count) | |
2195 { | |
2196 botline_forw(&boff); | |
2197 used += boff.height; | |
2198 if (used > curwin->w_height) | |
2199 break; | |
2200 below += boff.height; | |
2201 } | |
2202 else | |
2203 { | |
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parents:
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diff
changeset
|
2204 ++below; // count a "~" line |
7 | 2205 if (atend) |
2206 ++used; | |
2207 } | |
2208 } | |
2209 | |
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diff
changeset
|
2210 if (below > above) // add a line above the cursor |
7 | 2211 { |
2212 topline_back(&loff); | |
2082
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diff
changeset
|
2213 if (loff.height == MAXCOL) |
8ca3c9ad0bee
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diff
changeset
|
2214 used = MAXCOL; |
8ca3c9ad0bee
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diff
changeset
|
2215 else |
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diff
changeset
|
2216 used += loff.height; |
7 | 2217 if (used > curwin->w_height) |
2218 break; | |
2219 above += loff.height; | |
2220 topline = loff.lnum; | |
2221 #ifdef FEAT_DIFF | |
2222 topfill = loff.fill; | |
2223 #endif | |
2224 } | |
2225 } | |
2226 #ifdef FEAT_FOLDING | |
2227 if (!hasFolding(topline, &curwin->w_topline, NULL)) | |
2228 #endif | |
2229 curwin->w_topline = topline; | |
2230 #ifdef FEAT_DIFF | |
2231 curwin->w_topfill = topfill; | |
5653 | 2232 if (old_topline > curwin->w_topline + curwin->w_height) |
2233 curwin->w_botfill = FALSE; | |
7 | 2234 check_topfill(curwin, FALSE); |
2235 #endif | |
2236 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
2237 curwin->w_valid |= VALID_TOPLINE; | |
2238 } | |
2239 | |
2240 /* | |
2241 * Correct the cursor position so that it is in a part of the screen at least | |
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
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parents:
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diff
changeset
|
2242 * 'scrolloff' lines from the top and bottom, if possible. |
7 | 2243 * If not possible, put it at the same position as scroll_cursor_halfway(). |
2244 * When called topline must be valid! | |
2245 */ | |
2246 void | |
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2247 cursor_correct(void) |
7 | 2248 { |
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diff
changeset
|
2249 int above = 0; // screen lines above topline |
7 | 2250 linenr_T topline; |
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diff
changeset
|
2251 int below = 0; // screen lines below botline |
7 | 2252 linenr_T botline; |
2253 int above_wanted, below_wanted; | |
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parents:
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diff
changeset
|
2254 linenr_T cln; // Cursor Line Number |
7 | 2255 int max_off; |
15713
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parents:
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diff
changeset
|
2256 long so = get_scrolloff_value(); |
7 | 2257 |
2258 /* | |
2259 * How many lines we would like to have above/below the cursor depends on | |
2260 * whether the first/last line of the file is on screen. | |
2261 */ | |
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diff
changeset
|
2262 above_wanted = so; |
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patch 8.1.0864: cannot have a local value for 'scrolloff' and 'sidescrolloff'
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parents:
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diff
changeset
|
2263 below_wanted = so; |
1121 | 2264 if (mouse_dragging > 0) |
7 | 2265 { |
2266 above_wanted = mouse_dragging - 1; | |
2267 below_wanted = mouse_dragging - 1; | |
2268 } | |
2269 if (curwin->w_topline == 1) | |
2270 { | |
2271 above_wanted = 0; | |
2272 max_off = curwin->w_height / 2; | |
2273 if (below_wanted > max_off) | |
2274 below_wanted = max_off; | |
2275 } | |
2276 validate_botline(); | |
2277 if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1 | |
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patch 8.1.2171: mouse support not always available
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parents:
17863
diff
changeset
|
2278 && mouse_dragging == 0) |
7 | 2279 { |
2280 below_wanted = 0; | |
2281 max_off = (curwin->w_height - 1) / 2; | |
2282 if (above_wanted > max_off) | |
2283 above_wanted = max_off; | |
2284 } | |
2285 | |
2286 /* | |
2287 * If there are sufficient file-lines above and below the cursor, we can | |
2288 * return now. | |
2289 */ | |
2290 cln = curwin->w_cursor.lnum; | |
2291 if (cln >= curwin->w_topline + above_wanted | |
2292 && cln < curwin->w_botline - below_wanted | |
2293 #ifdef FEAT_FOLDING | |
2294 && !hasAnyFolding(curwin) | |
2295 #endif | |
2296 ) | |
2297 return; | |
2298 | |
2299 /* | |
2300 * Narrow down the area where the cursor can be put by taking lines from | |
2301 * the top and the bottom until: | |
2302 * - the desired context lines are found | |
2303 * - the lines from the top is past the lines from the bottom | |
2304 */ | |
2305 topline = curwin->w_topline; | |
2306 botline = curwin->w_botline - 1; | |
2307 #ifdef FEAT_DIFF | |
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diff
changeset
|
2308 // count filler lines as context |
7 | 2309 above = curwin->w_topfill; |
2310 below = curwin->w_filler_rows; | |
2311 #endif | |
2312 while ((above < above_wanted || below < below_wanted) && topline < botline) | |
2313 { | |
2314 if (below < below_wanted && (below <= above || above >= above_wanted)) | |
2315 { | |
2316 #ifdef FEAT_FOLDING | |
2317 if (hasFolding(botline, &botline, NULL)) | |
2318 ++below; | |
2319 else | |
2320 #endif | |
2321 below += plines(botline); | |
2322 --botline; | |
2323 } | |
2324 if (above < above_wanted && (above < below || below >= below_wanted)) | |
2325 { | |
2326 #ifdef FEAT_FOLDING | |
2327 if (hasFolding(topline, NULL, &topline)) | |
2328 ++above; | |
2329 else | |
2330 #endif | |
7103
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commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2331 above += PLINES_NOFILL(topline); |
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2332 #ifdef FEAT_DIFF |
18931
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parents:
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diff
changeset
|
2333 // Count filler lines below this line as context. |
7 | 2334 if (topline < botline) |
2335 above += diff_check_fill(curwin, topline + 1); | |
2336 #endif | |
2337 ++topline; | |
2338 } | |
2339 } | |
2340 if (topline == botline || botline == 0) | |
2341 curwin->w_cursor.lnum = topline; | |
2342 else if (topline > botline) | |
2343 curwin->w_cursor.lnum = botline; | |
2344 else | |
2345 { | |
2346 if (cln < topline && curwin->w_topline > 1) | |
2347 { | |
2348 curwin->w_cursor.lnum = topline; | |
2349 curwin->w_valid &= | |
2350 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW); | |
2351 } | |
2352 if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
2353 { | |
2354 curwin->w_cursor.lnum = botline; | |
2355 curwin->w_valid &= | |
2356 ~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW); | |
2357 } | |
2358 } | |
2359 curwin->w_valid |= VALID_TOPLINE; | |
2360 } | |
2361 | |
7803
37c929c4a073
commit https://github.com/vim/vim/commit/92b8b2d307e34117f146319872010b0ccc9d2713
Christian Brabandt <cb@256bit.org>
parents:
7103
diff
changeset
|
2362 static void get_scroll_overlap(lineoff_T *lp, int dir); |
7 | 2363 |
2364 /* | |
2365 * move screen 'count' pages up or down and update screen | |
2366 * | |
2367 * return FAIL for failure, OK otherwise | |
2368 */ | |
2369 int | |
7829
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Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2370 onepage(int dir, long count) |
7 | 2371 { |
2372 long n; | |
2373 int retval = OK; | |
2374 lineoff_T loff; | |
2375 linenr_T old_topline = curwin->w_topline; | |
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diff
changeset
|
2376 long so = get_scrolloff_value(); |
7 | 2377 |
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parents:
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diff
changeset
|
2378 if (curbuf->b_ml.ml_line_count == 1) // nothing to do |
7 | 2379 { |
2380 beep_flush(); | |
2381 return FAIL; | |
2382 } | |
2383 | |
2384 for ( ; count > 0; --count) | |
2385 { | |
2386 validate_botline(); | |
2387 /* | |
2388 * It's an error to move a page up when the first line is already on | |
2389 * the screen. It's an error to move a page down when the last line | |
2390 * is on the screen and the topline is 'scrolloff' lines from the | |
2391 * last line. | |
2392 */ | |
2393 if (dir == FORWARD | |
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diff
changeset
|
2394 ? ((curwin->w_topline >= curbuf->b_ml.ml_line_count - so) |
7 | 2395 && curwin->w_botline > curbuf->b_ml.ml_line_count) |
2396 : (curwin->w_topline == 1 | |
2397 #ifdef FEAT_DIFF | |
2398 && curwin->w_topfill == | |
2399 diff_check_fill(curwin, curwin->w_topline) | |
2400 #endif | |
2401 )) | |
2402 { | |
2403 beep_flush(); | |
2404 retval = FAIL; | |
2405 break; | |
2406 } | |
2407 | |
2408 #ifdef FEAT_DIFF | |
2409 loff.fill = 0; | |
2410 #endif | |
2411 if (dir == FORWARD) | |
2412 { | |
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commit https://github.com/vim/vim/commit/a1f4cb93ba50ea9e40cd4b1f5592b8a6d1398660
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
2413 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1) |
7 | 2414 { |
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parents:
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diff
changeset
|
2415 // Vi compatible scrolling |
164 | 2416 if (p_window <= 2) |
2417 ++curwin->w_topline; | |
2418 else | |
2419 curwin->w_topline += p_window - 2; | |
2420 if (curwin->w_topline > curbuf->b_ml.ml_line_count) | |
2421 curwin->w_topline = curbuf->b_ml.ml_line_count; | |
2422 curwin->w_cursor.lnum = curwin->w_topline; | |
2423 } | |
2424 else if (curwin->w_botline > curbuf->b_ml.ml_line_count) | |
2425 { | |
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diff
changeset
|
2426 // at end of file |
7 | 2427 curwin->w_topline = curbuf->b_ml.ml_line_count; |
2428 #ifdef FEAT_DIFF | |
2429 curwin->w_topfill = 0; | |
2430 #endif | |
2431 curwin->w_valid &= ~(VALID_WROW|VALID_CROW); | |
2432 } | |
2433 else | |
2434 { | |
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diff
changeset
|
2435 // For the overlap, start with the line just below the window |
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parents:
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diff
changeset
|
2436 // and go upwards. |
7 | 2437 loff.lnum = curwin->w_botline; |
2438 #ifdef FEAT_DIFF | |
2439 loff.fill = diff_check_fill(curwin, loff.lnum) | |
2440 - curwin->w_filler_rows; | |
2441 #endif | |
2442 get_scroll_overlap(&loff, -1); | |
2443 curwin->w_topline = loff.lnum; | |
2444 #ifdef FEAT_DIFF | |
2445 curwin->w_topfill = loff.fill; | |
2446 check_topfill(curwin, FALSE); | |
2447 #endif | |
2448 curwin->w_cursor.lnum = curwin->w_topline; | |
2449 curwin->w_valid &= ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW| | |
2450 VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP); | |
2451 } | |
2452 } | |
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diff
changeset
|
2453 else // dir == BACKWARDS |
7 | 2454 { |
2455 #ifdef FEAT_DIFF | |
2456 if (curwin->w_topline == 1) | |
2457 { | |
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diff
changeset
|
2458 // Include max number of filler lines |
7 | 2459 max_topfill(); |
2460 continue; | |
2461 } | |
2462 #endif | |
10349
cf988222b150
commit https://github.com/vim/vim/commit/a1f4cb93ba50ea9e40cd4b1f5592b8a6d1398660
Christian Brabandt <cb@256bit.org>
parents:
10295
diff
changeset
|
2463 if (ONE_WINDOW && p_window > 0 && p_window < Rows - 1) |
164 | 2464 { |
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parents:
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diff
changeset
|
2465 // Vi compatible scrolling (sort of) |
164 | 2466 if (p_window <= 2) |
2467 --curwin->w_topline; | |
2468 else | |
2469 curwin->w_topline -= p_window - 2; | |
2470 if (curwin->w_topline < 1) | |
2471 curwin->w_topline = 1; | |
2472 curwin->w_cursor.lnum = curwin->w_topline + p_window - 1; | |
2473 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) | |
2474 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; | |
2475 continue; | |
2476 } | |
2477 | |
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changeset
|
2478 // Find the line at the top of the window that is going to be the |
80b40bd5ec1a
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parents:
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diff
changeset
|
2479 // line at the bottom of the window. Make sure this results in |
80b40bd5ec1a
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parents:
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diff
changeset
|
2480 // the same line as before doing CTRL-F. |
7 | 2481 loff.lnum = curwin->w_topline - 1; |
2482 #ifdef FEAT_DIFF | |
2483 loff.fill = diff_check_fill(curwin, loff.lnum + 1) | |
2484 - curwin->w_topfill; | |
2485 #endif | |
2486 get_scroll_overlap(&loff, 1); | |
2487 | |
2488 if (loff.lnum >= curbuf->b_ml.ml_line_count) | |
2489 { | |
2490 loff.lnum = curbuf->b_ml.ml_line_count; | |
2491 #ifdef FEAT_DIFF | |
2492 loff.fill = 0; | |
2493 } | |
2494 else | |
2495 { | |
2496 botline_topline(&loff); | |
2497 #endif | |
2498 } | |
2499 curwin->w_cursor.lnum = loff.lnum; | |
2500 | |
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parents:
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diff
changeset
|
2501 // Find the line just above the new topline to get the right line |
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parents:
18892
diff
changeset
|
2502 // at the bottom of the window. |
7 | 2503 n = 0; |
2504 while (n <= curwin->w_height && loff.lnum >= 1) | |
2505 { | |
2506 topline_back(&loff); | |
2082
8ca3c9ad0bee
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parents:
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diff
changeset
|
2507 if (loff.height == MAXCOL) |
8ca3c9ad0bee
updated for version 7.2.366
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parents:
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diff
changeset
|
2508 n = MAXCOL; |
8ca3c9ad0bee
updated for version 7.2.366
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parents:
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diff
changeset
|
2509 else |
8ca3c9ad0bee
updated for version 7.2.366
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parents:
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diff
changeset
|
2510 n += loff.height; |
7 | 2511 } |
18931
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parents:
18892
diff
changeset
|
2512 if (loff.lnum < 1) // at begin of file |
7 | 2513 { |
2514 curwin->w_topline = 1; | |
2515 #ifdef FEAT_DIFF | |
2516 max_topfill(); | |
2517 #endif | |
2518 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
2519 } | |
2520 else | |
2521 { | |
18931
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patch 8.2.0026: still some /* */ comments
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parents:
18892
diff
changeset
|
2522 // Go two lines forward again. |
7 | 2523 #ifdef FEAT_DIFF |
2524 topline_botline(&loff); | |
2525 #endif | |
2526 botline_forw(&loff); | |
2527 botline_forw(&loff); | |
2528 #ifdef FEAT_DIFF | |
2529 botline_topline(&loff); | |
2530 #endif | |
2531 #ifdef FEAT_FOLDING | |
18931
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patch 8.2.0026: still some /* */ comments
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
2532 // We're at the wrong end of a fold now. |
7 | 2533 (void)hasFolding(loff.lnum, &loff.lnum, NULL); |
2534 #endif | |
2535 | |
18931
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parents:
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diff
changeset
|
2536 // Always scroll at least one line. Avoid getting stuck on |
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
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parents:
18892
diff
changeset
|
2537 // very long lines. |
7 | 2538 if (loff.lnum >= curwin->w_topline |
2539 #ifdef FEAT_DIFF | |
2540 && (loff.lnum > curwin->w_topline | |
2541 || loff.fill >= curwin->w_topfill) | |
2542 #endif | |
2543 ) | |
2544 { | |
2545 #ifdef FEAT_DIFF | |
18931
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parents:
18892
diff
changeset
|
2546 // First try using the maximum number of filler lines. If |
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
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parents:
18892
diff
changeset
|
2547 // that's not enough, backup one line. |
7 | 2548 loff.fill = curwin->w_topfill; |
2549 if (curwin->w_topfill < diff_check_fill(curwin, | |
2550 curwin->w_topline)) | |
2551 max_topfill(); | |
2552 if (curwin->w_topfill == loff.fill) | |
2553 #endif | |
2554 { | |
2555 --curwin->w_topline; | |
2556 #ifdef FEAT_DIFF | |
2557 curwin->w_topfill = 0; | |
2558 #endif | |
2559 } | |
2560 comp_botline(curwin); | |
2561 curwin->w_cursor.lnum = curwin->w_botline - 1; | |
5764 | 2562 curwin->w_valid &= |
2563 ~(VALID_WCOL|VALID_CHEIGHT|VALID_WROW|VALID_CROW); | |
7 | 2564 } |
2565 else | |
2566 { | |
2567 curwin->w_topline = loff.lnum; | |
2568 #ifdef FEAT_DIFF | |
2569 curwin->w_topfill = loff.fill; | |
2570 check_topfill(curwin, FALSE); | |
2571 #endif | |
2572 curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE); | |
2573 } | |
2574 } | |
2575 } | |
2576 } | |
2577 #ifdef FEAT_FOLDING | |
2578 foldAdjustCursor(); | |
2579 #endif | |
2580 cursor_correct(); | |
10102
b80ad55d62d8
commit https://github.com/vim/vim/commit/bc54f3f3fed4dc3556df8c46cee6739d211b0eb2
Christian Brabandt <cb@256bit.org>
parents:
10042
diff
changeset
|
2581 check_cursor_col(); |
161 | 2582 if (retval == OK) |
2583 beginline(BL_SOL | BL_FIX); | |
7 | 2584 curwin->w_valid &= ~(VALID_WCOL|VALID_WROW|VALID_VIRTCOL); |
2585 | |
14317
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2586 if (retval == OK && dir == FORWARD) |
7 | 2587 { |
14317
1bc96dbb5498
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parents:
13384
diff
changeset
|
2588 // 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
|
2589 // 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
|
2590 // 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
|
2591 if (check_top_offset()) |
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
|
2592 { |
1bc96dbb5498
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parents:
13384
diff
changeset
|
2593 scroll_cursor_top(1, FALSE); |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2594 if (curwin->w_topline <= old_topline |
7 | 2595 && old_topline < curbuf->b_ml.ml_line_count) |
14317
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2596 { |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2597 curwin->w_topline = old_topline + 1; |
7 | 2598 #ifdef FEAT_FOLDING |
14317
1bc96dbb5498
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Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2599 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2600 #endif |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2601 } |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2602 } |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2603 #ifdef FEAT_FOLDING |
1bc96dbb5498
patch 8.1.0174: after paging up and down fold line is wrong
Christian Brabandt <cb@256bit.org>
parents:
13384
diff
changeset
|
2604 else if (curwin->w_botline > curbuf->b_ml.ml_line_count) |
7 | 2605 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); |
2606 #endif | |
2607 } | |
2608 | |
2609 redraw_later(VALID); | |
2610 return retval; | |
2611 } | |
2612 | |
2613 /* | |
2614 * Decide how much overlap to use for page-up or page-down scrolling. | |
2615 * This is symmetric, so that doing both keeps the same lines displayed. | |
2616 * Three lines are examined: | |
2617 * | |
2618 * before CTRL-F after CTRL-F / before CTRL-B | |
2619 * etc. l1 | |
2620 * l1 last but one line ------------ | |
2621 * l2 last text line l2 top text line | |
2622 * ------------- l3 second text line | |
2623 * l3 etc. | |
2624 */ | |
2625 static void | |
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2626 get_scroll_overlap(lineoff_T *lp, int dir) |
7 | 2627 { |
2628 int h1, h2, h3, h4; | |
2629 int min_height = curwin->w_height - 2; | |
2630 lineoff_T loff0, loff1, loff2; | |
2631 | |
2632 #ifdef FEAT_DIFF | |
2633 if (lp->fill > 0) | |
2634 lp->height = 1; | |
2635 else | |
2636 lp->height = plines_nofill(lp->lnum); | |
2637 #else | |
2638 lp->height = plines(lp->lnum); | |
2639 #endif | |
2640 h1 = lp->height; | |
2641 if (h1 > min_height) | |
18931
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Bram Moolenaar <Bram@vim.org>
parents:
18892
diff
changeset
|
2642 return; // no overlap |
7 | 2643 |
2644 loff0 = *lp; | |
2645 if (dir > 0) | |
2646 botline_forw(lp); | |
2647 else | |
2648 topline_back(lp); | |
2649 h2 = lp->height; | |
3968 | 2650 if (h2 == MAXCOL || h2 + h1 > min_height) |
7 | 2651 { |
18931
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Bram Moolenaar <Bram@vim.org>
parents:
18892
diff
changeset
|
2652 *lp = loff0; // no overlap |
7 | 2653 return; |
2654 } | |
2655 | |
2656 loff1 = *lp; | |
2657 if (dir > 0) | |
2658 botline_forw(lp); | |
2659 else | |
2660 topline_back(lp); | |
2661 h3 = lp->height; | |
3968 | 2662 if (h3 == MAXCOL || h3 + h2 > min_height) |
7 | 2663 { |
18931
80b40bd5ec1a
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Bram Moolenaar <Bram@vim.org>
parents:
18892
diff
changeset
|
2664 *lp = loff0; // no overlap |
7 | 2665 return; |
2666 } | |
2667 | |
2668 loff2 = *lp; | |
2669 if (dir > 0) | |
2670 botline_forw(lp); | |
2671 else | |
2672 topline_back(lp); | |
2673 h4 = lp->height; | |
3968 | 2674 if (h4 == MAXCOL || h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height) |
18931
80b40bd5ec1a
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parents:
18892
diff
changeset
|
2675 *lp = loff1; // 1 line overlap |
7 | 2676 else |
18931
80b40bd5ec1a
patch 8.2.0026: still some /* */ comments
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parents:
18892
diff
changeset
|
2677 *lp = loff2; // 2 lines overlap |
7 | 2678 } |
2679 | |
2680 /* | |
2681 * Scroll 'scroll' lines up or down. | |
2682 */ | |
2683 void | |
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2684 halfpage(int flag, linenr_T Prenum) |
7 | 2685 { |
2686 long scrolled = 0; | |
2687 int i; | |
2688 int n; | |
2689 int room; | |
2690 | |
2691 if (Prenum) | |
2692 curwin->w_p_scr = (Prenum > curwin->w_height) ? | |
2693 curwin->w_height : Prenum; | |
2694 n = (curwin->w_p_scr <= curwin->w_height) ? | |
2695 curwin->w_p_scr : curwin->w_height; | |
2696 | |
11258
84f71a8a5f2c
patch 8.0.0515: ml_get errors in silent Ex mode
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
2697 update_topline(); |
7 | 2698 validate_botline(); |
2699 room = curwin->w_empty_rows; | |
2700 #ifdef FEAT_DIFF | |
2701 room += curwin->w_filler_rows; | |
2702 #endif | |
2703 if (flag) | |
2704 { | |
2705 /* | |
2706 * scroll the text up | |
2707 */ | |
2708 while (n > 0 && curwin->w_botline <= curbuf->b_ml.ml_line_count) | |
2709 { | |
2710 #ifdef FEAT_DIFF | |
2711 if (curwin->w_topfill > 0) | |
2712 { | |
2713 i = 1; | |
21321
1421eca61db9
patch 8.2.1211: removed more than dead code
Bram Moolenaar <Bram@vim.org>
parents:
21134
diff
changeset
|
2714 --n; |
7 | 2715 --curwin->w_topfill; |
2716 } | |
2717 else | |
2718 #endif | |
2719 { | |
7103
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2720 i = PLINES_NOFILL(curwin->w_topline); |
7 | 2721 n -= i; |
2722 if (n < 0 && scrolled > 0) | |
2723 break; | |
2724 #ifdef FEAT_FOLDING | |
2725 (void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline); | |
2726 #endif | |
2727 ++curwin->w_topline; | |
2728 #ifdef FEAT_DIFF | |
2729 curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline); | |
2730 #endif | |
2731 | |
2732 if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) | |
2733 { | |
2734 ++curwin->w_cursor.lnum; | |
2735 curwin->w_valid &= | |
2736 ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL); | |
2737 } | |
2738 } | |
2739 curwin->w_valid &= ~(VALID_CROW|VALID_WROW); | |
2740 scrolled += i; | |
2741 | |
2742 /* | |
2743 * Correct w_botline for changed w_topline. | |
2744 * Won't work when there are filler lines. | |
2745 */ | |
2746 #ifdef FEAT_DIFF | |
2747 if (curwin->w_p_diff) | |
2748 curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP); | |
2749 else | |
2750 #endif | |
2751 { | |
2752 room += i; | |
2753 do | |
2754 { | |
2755 i = plines(curwin->w_botline); | |
2756 if (i > room) | |
2757 break; | |
2758 #ifdef FEAT_FOLDING | |
2759 (void)hasFolding(curwin->w_botline, NULL, | |
2760 &curwin->w_botline); | |
2761 #endif | |
2762 ++curwin->w_botline; | |
2763 room -= i; | |
2764 } while (curwin->w_botline <= curbuf->b_ml.ml_line_count); | |
2765 } | |
2766 } | |
2767 | |
2768 /* | |
2769 * When hit bottom of the file: move cursor down. | |
2770 */ | |
2771 if (n > 0) | |
2772 { | |
2773 # ifdef FEAT_FOLDING | |
2774 if (hasAnyFolding(curwin)) | |
2775 { | |
2776 while (--n >= 0 | |
2777 && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) | |
2778 { | |
2779 (void)hasFolding(curwin->w_cursor.lnum, NULL, | |
2780 &curwin->w_cursor.lnum); | |
2781 ++curwin->w_cursor.lnum; | |
2782 } | |
2783 } | |
2784 else | |
2785 # endif | |
2786 curwin->w_cursor.lnum += n; | |
2787 check_cursor_lnum(); | |
2788 } | |
2789 } | |
2790 else | |
2791 { | |
2792 /* | |
2793 * scroll the text down | |
2794 */ | |
2795 while (n > 0 && curwin->w_topline > 1) | |
2796 { | |
2797 #ifdef FEAT_DIFF | |
2798 if (curwin->w_topfill < diff_check_fill(curwin, curwin->w_topline)) | |
2799 { | |
2800 i = 1; | |
16042
7952be788a49
patch 8.1.1026: unused condition
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parents:
15713
diff
changeset
|
2801 --n; |
7 | 2802 ++curwin->w_topfill; |
2803 } | |
2804 else | |
2805 #endif | |
2806 { | |
7103
84d318257a45
commit https://github.com/vim/vim/commit/43335ea394fe247132b9701c55cccf51e6c36425
Christian Brabandt <cb@256bit.org>
parents:
7088
diff
changeset
|
2807 i = PLINES_NOFILL(curwin->w_topline - 1); |
7 | 2808 n -= i; |
2809 if (n < 0 && scrolled > 0) | |
2810 break; | |
2811 --curwin->w_topline; | |
2812 #ifdef FEAT_FOLDING | |
2813 (void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL); | |
2814 #endif | |
2815 #ifdef FEAT_DIFF | |
2816 curwin->w_topfill = 0; | |
2817 #endif | |
2818 } | |
2819 curwin->w_valid &= ~(VALID_CROW|VALID_WROW| | |
2820 VALID_BOTLINE|VALID_BOTLINE_AP); | |
2821 scrolled += i; | |
2822 if (curwin->w_cursor.lnum > 1) | |
2823 { | |
2824 --curwin->w_cursor.lnum; | |
2825 curwin->w_valid &= ~(VALID_VIRTCOL|VALID_CHEIGHT|VALID_WCOL); | |
2826 } | |
2827 } | |
16042
7952be788a49
patch 8.1.1026: unused condition
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parents:
15713
diff
changeset
|
2828 |
7 | 2829 /* |
2830 * When hit top of the file: move cursor up. | |
2831 */ | |
2832 if (n > 0) | |
2833 { | |
2834 if (curwin->w_cursor.lnum <= (linenr_T)n) | |
2835 curwin->w_cursor.lnum = 1; | |
2836 else | |
2837 # ifdef FEAT_FOLDING | |
2838 if (hasAnyFolding(curwin)) | |
2839 { | |
2840 while (--n >= 0 && curwin->w_cursor.lnum > 1) | |
2841 { | |
2842 --curwin->w_cursor.lnum; | |
2843 (void)hasFolding(curwin->w_cursor.lnum, | |
2844 &curwin->w_cursor.lnum, NULL); | |
2845 } | |
2846 } | |
2847 else | |
2848 # endif | |
2849 curwin->w_cursor.lnum -= n; | |
2850 } | |
2851 } | |
2852 # ifdef FEAT_FOLDING | |
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parents:
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diff
changeset
|
2853 // Move cursor to first line of closed fold. |
7 | 2854 foldAdjustCursor(); |
2855 # endif | |
2856 #ifdef FEAT_DIFF | |
2857 check_topfill(curwin, !flag); | |
2858 #endif | |
2859 cursor_correct(); | |
2860 beginline(BL_SOL | BL_FIX); | |
2861 redraw_later(VALID); | |
2862 } | |
2250
1bac28a53fae
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diff
changeset
|
2863 |
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diff
changeset
|
2864 void |
7829
2a8d6b2dd925
commit https://github.com/vim/vim/commit/9b57814db13c29ecb08260b36923c0e1c8a373a9
Christian Brabandt <cb@256bit.org>
parents:
7803
diff
changeset
|
2865 do_check_cursorbind(void) |
2250
1bac28a53fae
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diff
changeset
|
2866 { |
1bac28a53fae
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parents:
2210
diff
changeset
|
2867 linenr_T line = curwin->w_cursor.lnum; |
3415 | 2868 colnr_T col = curwin->w_cursor.col; |
2869 colnr_T coladd = curwin->w_cursor.coladd; | |
3433 | 2870 colnr_T curswant = curwin->w_curswant; |
2871 int set_curswant = curwin->w_set_curswant; | |
2250
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diff
changeset
|
2872 win_T *old_curwin = curwin; |
1bac28a53fae
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2873 buf_T *old_curbuf = curbuf; |
2693 | 2874 int restart_edit_save; |
2250
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parents:
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2875 int old_VIsual_select = VIsual_select; |
1bac28a53fae
Add the conceal patch from Vince Negri.
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2876 int old_VIsual_active = VIsual_active; |
1bac28a53fae
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2877 |
1bac28a53fae
Add the conceal patch from Vince Negri.
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2878 /* |
1bac28a53fae
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2879 * loop through the cursorbound windows |
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parents:
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2880 */ |
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Add the conceal patch from Vince Negri.
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parents:
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2881 VIsual_select = VIsual_active = 0; |
9649
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commit https://github.com/vim/vim/commit/2932359000b2f918d5fade79ea4d124d5943cd07
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2882 FOR_ALL_WINDOWS(curwin) |
2250
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parents:
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2883 { |
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2884 curbuf = curwin->w_buffer; |
18931
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2885 // skip original window and windows with 'noscrollbind' |
2250
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2886 if (curwin != old_curwin && curwin->w_p_crb) |
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2887 { |
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2888 # ifdef FEAT_DIFF |
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2889 if (curwin->w_p_diff) |
10295
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commit https://github.com/vim/vim/commit/025e3e0bafbc85cc4e365145af711edf99d0a90d
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2890 curwin->w_cursor.lnum = |
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2891 diff_get_corresponding_line(old_curbuf, line); |
2250
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2892 else |
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2893 # endif |
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2894 curwin->w_cursor.lnum = line; |
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2895 curwin->w_cursor.col = col; |
3415 | 2896 curwin->w_cursor.coladd = coladd; |
3433 | 2897 curwin->w_curswant = curswant; |
2898 curwin->w_set_curswant = set_curswant; | |
2250
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2899 |
18931
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2900 // Make sure the cursor is in a valid position. Temporarily set |
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2901 // "restart_edit" to allow the cursor to be beyond the EOL. |
2693 | 2902 restart_edit_save = restart_edit; |
2903 restart_edit = TRUE; | |
2250
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2904 check_cursor(); |
10607
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2905 # ifdef FEAT_SYN_HL |
10597
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2906 if (curwin->w_p_cul || curwin->w_p_cuc) |
10583
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2907 validate_cursor(); |
10607
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2908 # endif |
2693 | 2909 restart_edit = restart_edit_save; |
18931
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2910 // Correct cursor for multi-byte character. |
2250
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2911 if (has_mbyte) |
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2912 mb_adjust_cursor(); |
10597
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2913 redraw_later(VALID); |
2250
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2914 |
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2915 // Only scroll when 'scrollbind' hasn't done this. |
2688 | 2916 if (!curwin->w_p_scb) |
2917 update_topline(); | |
2250
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2918 curwin->w_redr_status = TRUE; |
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2919 } |
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2920 } |
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2921 |
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2922 /* |
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2923 * reset current-window |
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2924 */ |
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2925 VIsual_select = old_VIsual_select; |
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2926 VIsual_active = old_VIsual_active; |
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2927 curwin = old_curwin; |
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2928 curbuf = old_curbuf; |
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2929 } |