Commit | Line | Data |
---|---|---|
7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
ba318903 | 3 | Copyright (C) 1985-1987, 1993-1998, 2000-2014 Free Software |
ab422c4d | 4 | Foundation, Inc. |
7ab12479 JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
7ab12479 | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
7ab12479 JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
7ab12479 | 20 | |
18160b98 | 21 | #include <config.h> |
e8c17b81 | 22 | |
4d553a13 KL |
23 | #include <stdio.h> |
24 | ||
7ab12479 | 25 | #include "lisp.h" |
e5560ff7 | 26 | #include "character.h" |
7ab12479 | 27 | #include "buffer.h" |
3e4731a3 | 28 | #include "keyboard.h" |
e35f6ff7 | 29 | #include "keymap.h" |
44fa5b1e | 30 | #include "frame.h" |
7ab12479 JB |
31 | #include "window.h" |
32 | #include "commands.h" | |
33 | #include "indent.h" | |
34 | #include "termchar.h" | |
35 | #include "disptab.h" | |
dfcf069d | 36 | #include "dispextern.h" |
5500c422 GM |
37 | #include "blockinput.h" |
38 | #include "intervals.h" | |
de509a60 | 39 | #include "termhooks.h" /* For FRAME_TERMINAL. */ |
66738305 DA |
40 | #ifdef HAVE_WINDOW_SYSTEM |
41 | #include TERM_HEADER | |
42 | #endif /* HAVE_WINDOW_SYSTEM */ | |
1e3c8885 EZ |
43 | #ifdef MSDOS |
44 | #include "msdos.h" | |
45 | #endif | |
5500c422 | 46 | |
b52d6985 PE |
47 | Lisp_Object Qwindowp, Qwindow_live_p; |
48 | static Lisp_Object Qwindow_valid_p; | |
84575e67 PE |
49 | static Lisp_Object Qwindow_configuration_p; |
50 | static Lisp_Object Qrecord_window_buffer; | |
9397e56f | 51 | static Lisp_Object Qwindow_deletable_p, Qdelete_window, Qdisplay_buffer; |
b9e809c2 | 52 | static Lisp_Object Qreplace_buffer_in_windows, Qget_mru_window; |
5386012d | 53 | static Lisp_Object Qwindow_resize_root_window, Qwindow_resize_root_window_vertically; |
880e6158 | 54 | static Lisp_Object Qwindow_pixel_to_total; |
955cbe7b | 55 | static Lisp_Object Qscroll_up, Qscroll_down, Qscroll_command; |
5938d519 | 56 | static Lisp_Object Qsafe, Qabove, Qbelow, Qwindow_size, Qclone_of; |
6cb4da45 | 57 | static Lisp_Object Qfloor, Qceiling; |
b9e809c2 | 58 | |
f57e2426 | 59 | static int displayed_window_lines (struct window *); |
f57e2426 J |
60 | static int count_windows (struct window *); |
61 | static int get_leaf_windows (struct window *, struct window **, int); | |
56b5d5b1 DA |
62 | static void window_scroll (Lisp_Object, EMACS_INT, bool, int); |
63 | static void window_scroll_pixel_based (Lisp_Object, int, bool, int); | |
64 | static void window_scroll_line_based (Lisp_Object, int, bool, int); | |
f57e2426 | 65 | static int add_window_to_list (struct window *, void *); |
f57e2426 J |
66 | static Lisp_Object next_window (Lisp_Object, Lisp_Object, |
67 | Lisp_Object, int); | |
68 | static void decode_next_window_args (Lisp_Object *, Lisp_Object *, | |
69 | Lisp_Object *); | |
2f7c71a1 | 70 | static void foreach_window (struct frame *, |
f95464e4 | 71 | int (* fn) (struct window *, void *), |
2f7c71a1 | 72 | void *); |
f57e2426 J |
73 | static int foreach_window_1 (struct window *, |
74 | int (* fn) (struct window *, void *), | |
75 | void *); | |
76 | static Lisp_Object window_list_1 (Lisp_Object, Lisp_Object, Lisp_Object); | |
748fa866 DA |
77 | static int window_resize_check (struct window *, bool); |
78 | static void window_resize_apply (struct window *, bool); | |
880e6158 | 79 | static void window_resize_apply_total (struct window *, bool); |
7c82f3e2 | 80 | static Lisp_Object select_window (Lisp_Object, Lisp_Object, int); |
12384b01 | 81 | static void select_window_1 (Lisp_Object, bool); |
b7354ddf | 82 | |
25554267 DA |
83 | static struct window *set_window_fringes (struct window *, Lisp_Object, |
84 | Lisp_Object, Lisp_Object); | |
85 | static struct window *set_window_margins (struct window *, Lisp_Object, | |
86 | Lisp_Object); | |
87 | static struct window *set_window_scroll_bars (struct window *, Lisp_Object, | |
88 | Lisp_Object, Lisp_Object); | |
89 | static void apply_window_adjustment (struct window *); | |
90 | ||
7ab12479 JB |
91 | /* This is the window in which the terminal's cursor should |
92 | be left when nothing is being done with it. This must | |
93 | always be a leaf window, and its buffer is selected by | |
94 | the top level editing loop at the end of each command. | |
95 | ||
96 | This value is always the same as | |
44fa5b1e | 97 | FRAME_SELECTED_WINDOW (selected_frame). */ |
7ab12479 JB |
98 | Lisp_Object selected_window; |
99 | ||
67492200 GM |
100 | /* A list of all windows for use by next_window and Fwindow_list. |
101 | Functions creating or deleting windows should invalidate this cache | |
102 | by setting it to nil. */ | |
67492200 GM |
103 | Lisp_Object Vwindow_list; |
104 | ||
5500c422 GM |
105 | /* The mini-buffer window of the selected frame. |
106 | Note that you cannot test for mini-bufferness of an arbitrary window | |
107 | by comparing against this; but you can test for mini-bufferness of | |
7ab12479 JB |
108 | the selected window. */ |
109 | Lisp_Object minibuf_window; | |
110 | ||
3f49fddc KS |
111 | /* Non-nil means it is the window whose mode line should be |
112 | shown as the selected window when the minibuffer is selected. */ | |
3dbab091 | 113 | Lisp_Object minibuf_selected_window; |
3f49fddc | 114 | |
a58ec57d | 115 | /* Hook run at end of temp_output_buffer_show. */ |
955cbe7b | 116 | static Lisp_Object Qtemp_buffer_show_hook; |
a58ec57d | 117 | |
880e6158 MR |
118 | /* Incremented for each window created. */ |
119 | static int sequence_number; | |
120 | ||
5b03d3c0 RS |
121 | /* Nonzero after init_window_once has finished. */ |
122 | static int window_initialized; | |
123 | ||
543f5fb1 | 124 | /* Hook to run when window config changes. */ |
eeca6f6f | 125 | static Lisp_Object Qwindow_configuration_change_hook; |
0d384044 | 126 | |
66d43aea | 127 | /* Used by the function window_scroll_pixel_based */ |
c876b227 | 128 | static int window_scroll_pixel_based_preserve_x; |
66fe93d1 | 129 | static int window_scroll_pixel_based_preserve_y; |
66d43aea | 130 | |
c876b227 | 131 | /* Same for window_scroll_line_based. */ |
d311d28c PE |
132 | static EMACS_INT window_scroll_preserve_hpos; |
133 | static EMACS_INT window_scroll_preserve_vpos; | |
f230ecc9 | 134 | \f |
84575e67 PE |
135 | static void |
136 | CHECK_WINDOW_CONFIGURATION (Lisp_Object x) | |
137 | { | |
138 | CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x); | |
139 | } | |
140 | ||
e8c17b81 | 141 | /* These setters are used only in this file, so they can be private. */ |
b0ab8123 | 142 | static void |
e8c17b81 PE |
143 | wset_combination_limit (struct window *w, Lisp_Object val) |
144 | { | |
145 | w->combination_limit = val; | |
146 | } | |
b0ab8123 | 147 | static void |
e8c17b81 PE |
148 | wset_dedicated (struct window *w, Lisp_Object val) |
149 | { | |
150 | w->dedicated = val; | |
151 | } | |
b0ab8123 | 152 | static void |
e8c17b81 PE |
153 | wset_display_table (struct window *w, Lisp_Object val) |
154 | { | |
155 | w->display_table = val; | |
156 | } | |
b0ab8123 | 157 | static void |
e8c17b81 PE |
158 | wset_new_normal (struct window *w, Lisp_Object val) |
159 | { | |
160 | w->new_normal = val; | |
161 | } | |
b0ab8123 | 162 | static void |
e8c17b81 PE |
163 | wset_new_total (struct window *w, Lisp_Object val) |
164 | { | |
165 | w->new_total = val; | |
166 | } | |
b0ab8123 | 167 | static void |
e8c17b81 PE |
168 | wset_normal_cols (struct window *w, Lisp_Object val) |
169 | { | |
170 | w->normal_cols = val; | |
171 | } | |
b0ab8123 | 172 | static void |
e8c17b81 PE |
173 | wset_normal_lines (struct window *w, Lisp_Object val) |
174 | { | |
175 | w->normal_lines = val; | |
176 | } | |
b0ab8123 | 177 | static void |
e8c17b81 PE |
178 | wset_parent (struct window *w, Lisp_Object val) |
179 | { | |
180 | w->parent = val; | |
181 | } | |
b0ab8123 | 182 | static void |
e8c17b81 PE |
183 | wset_pointm (struct window *w, Lisp_Object val) |
184 | { | |
185 | w->pointm = val; | |
186 | } | |
b0ab8123 | 187 | static void |
e8c17b81 PE |
188 | wset_start (struct window *w, Lisp_Object val) |
189 | { | |
190 | w->start = val; | |
191 | } | |
b0ab8123 | 192 | static void |
e8c17b81 PE |
193 | wset_temslot (struct window *w, Lisp_Object val) |
194 | { | |
195 | w->temslot = val; | |
196 | } | |
b0ab8123 | 197 | static void |
e8c17b81 PE |
198 | wset_vertical_scroll_bar_type (struct window *w, Lisp_Object val) |
199 | { | |
200 | w->vertical_scroll_bar_type = val; | |
201 | } | |
b0ab8123 | 202 | static void |
e8c17b81 PE |
203 | wset_window_parameters (struct window *w, Lisp_Object val) |
204 | { | |
205 | w->window_parameters = val; | |
206 | } | |
e74aeda8 DA |
207 | static void |
208 | wset_combination (struct window *w, bool horflag, Lisp_Object val) | |
209 | { | |
210 | /* Since leaf windows never becomes non-leaf, there should | |
211 | be no buffer and markers in start and pointm fields of W. */ | |
212 | eassert (!BUFFERP (w->contents) && NILP (w->start) && NILP (w->pointm)); | |
213 | w->contents = val; | |
214 | /* When an internal window is deleted and VAL is nil, HORFLAG | |
215 | is meaningless. */ | |
216 | if (!NILP (val)) | |
217 | w->horizontal = horflag; | |
218 | } | |
e8c17b81 | 219 | |
170da1ec DA |
220 | /* Nonzero if leaf window W doesn't reflect the actual state |
221 | of displayed buffer due to its text or overlays change. */ | |
222 | ||
223 | bool | |
224 | window_outdated (struct window *w) | |
225 | { | |
226 | struct buffer *b = XBUFFER (w->contents); | |
227 | return (w->last_modified < BUF_MODIFF (b) | |
228 | || w->last_overlay_modified < BUF_OVERLAY_MODIFF (b)); | |
229 | } | |
230 | ||
52162052 MR |
231 | struct window * |
232 | decode_live_window (register Lisp_Object window) | |
f230ecc9 MR |
233 | { |
234 | if (NILP (window)) | |
235 | return XWINDOW (selected_window); | |
c876b227 | 236 | |
f230ecc9 MR |
237 | CHECK_LIVE_WINDOW (window); |
238 | return XWINDOW (window); | |
239 | } | |
240 | ||
b9e9df47 | 241 | struct window * |
f230ecc9 MR |
242 | decode_any_window (register Lisp_Object window) |
243 | { | |
6e5d1c12 CY |
244 | struct window *w; |
245 | ||
f230ecc9 MR |
246 | if (NILP (window)) |
247 | return XWINDOW (selected_window); | |
248 | ||
249 | CHECK_WINDOW (window); | |
6e5d1c12 | 250 | w = XWINDOW (window); |
6e5d1c12 | 251 | return w; |
f230ecc9 | 252 | } |
666e158e | 253 | |
b52d6985 | 254 | static struct window * |
52162052 MR |
255 | decode_valid_window (register Lisp_Object window) |
256 | { | |
257 | struct window *w; | |
258 | ||
259 | if (NILP (window)) | |
260 | return XWINDOW (selected_window); | |
261 | ||
262 | CHECK_VALID_WINDOW (window); | |
263 | w = XWINDOW (window); | |
264 | return w; | |
265 | } | |
266 | ||
98a07056 DA |
267 | /* Called when W's buffer slot is changed. ARG -1 means that W is about to |
268 | cease its buffer, and 1 means that W is about to set up the new one. */ | |
269 | ||
270 | static void | |
271 | adjust_window_count (struct window *w, int arg) | |
272 | { | |
273 | eassert (eabs (arg) == 1); | |
e74aeda8 | 274 | if (BUFFERP (w->contents)) |
98a07056 | 275 | { |
e74aeda8 | 276 | struct buffer *b = XBUFFER (w->contents); |
3f781c75 | 277 | |
98a07056 DA |
278 | if (b->base_buffer) |
279 | b = b->base_buffer; | |
280 | b->window_count += arg; | |
281 | eassert (b->window_count >= 0); | |
422ff52b | 282 | /* These should be recalculated by redisplay code. */ |
9d93ce29 | 283 | w->window_end_valid = 0; |
422ff52b | 284 | w->base_line_pos = 0; |
98a07056 DA |
285 | } |
286 | } | |
287 | ||
288 | /* Set W's buffer slot to VAL and recompute number | |
289 | of windows showing VAL if it is a buffer. */ | |
290 | ||
291 | void | |
292 | wset_buffer (struct window *w, Lisp_Object val) | |
293 | { | |
294 | adjust_window_count (w, -1); | |
e74aeda8 DA |
295 | if (BUFFERP (val)) |
296 | /* Make sure that we do not assign the buffer | |
297 | to an internal window. */ | |
298 | eassert (MARKERP (w->start) && MARKERP (w->pointm)); | |
299 | w->contents = val; | |
98a07056 DA |
300 | adjust_window_count (w, 1); |
301 | } | |
302 | ||
7ab12479 | 303 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, |
f230ecc9 | 304 | doc: /* Return t if OBJECT is a window and nil otherwise. */) |
5842a27b | 305 | (Lisp_Object object) |
7ab12479 | 306 | { |
413430c5 | 307 | return WINDOWP (object) ? Qt : Qnil; |
7ab12479 JB |
308 | } |
309 | ||
52162052 MR |
310 | DEFUN ("window-valid-p", Fwindow_valid_p, Swindow_valid_p, 1, 1, 0, |
311 | doc: /* Return t if OBJECT is a valid window and nil otherwise. | |
312 | A valid window is either a window that displays a buffer or an internal | |
313 | window. Deleted windows are not live. */) | |
314 | (Lisp_Object object) | |
315 | { | |
316 | return WINDOW_VALID_P (object) ? Qt : Qnil; | |
317 | } | |
318 | ||
806b4d9b | 319 | DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0, |
f230ecc9 | 320 | doc: /* Return t if OBJECT is a live window and nil otherwise. |
49745b39 CY |
321 | A live window is a window that displays a buffer. |
322 | Internal windows and deleted windows are not live. */) | |
5842a27b | 323 | (Lisp_Object object) |
605be8af | 324 | { |
9e571f49 | 325 | return WINDOW_LIVE_P (object) ? Qt : Qnil; |
605be8af | 326 | } |
727e958e MR |
327 | \f |
328 | /* Frames and windows. */ | |
89bc0592 | 329 | DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 0, 1, 0, |
727e958e | 330 | doc: /* Return the frame that window WINDOW is on. |
52162052 | 331 | WINDOW must be a valid window and defaults to the selected one. */) |
727e958e MR |
332 | (Lisp_Object window) |
333 | { | |
52162052 | 334 | return decode_valid_window (window)->frame; |
727e958e MR |
335 | } |
336 | ||
337 | DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0, | |
87e68db4 JB |
338 | doc: /* Return the root window of FRAME-OR-WINDOW. |
339 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
49745b39 CY |
340 | With a frame argument, return that frame's root window. |
341 | With a window argument, return the root window of that window's frame. */) | |
727e958e MR |
342 | (Lisp_Object frame_or_window) |
343 | { | |
344 | Lisp_Object window; | |
345 | ||
346 | if (NILP (frame_or_window)) | |
e69b0960 | 347 | window = SELECTED_FRAME ()->root_window; |
52162052 MR |
348 | else if (WINDOW_VALID_P (frame_or_window)) |
349 | window = XFRAME (XWINDOW (frame_or_window)->frame)->root_window; | |
727e958e MR |
350 | else |
351 | { | |
352 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 353 | window = XFRAME (frame_or_window)->root_window; |
727e958e MR |
354 | } |
355 | ||
356 | return window; | |
357 | } | |
358 | ||
359 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, | |
49745b39 CY |
360 | doc: /* Return the minibuffer window for frame FRAME. |
361 | If FRAME is omitted or nil, it defaults to the selected frame. */) | |
727e958e MR |
362 | (Lisp_Object frame) |
363 | { | |
d9f07150 | 364 | return FRAME_MINIBUF_WINDOW (decode_live_frame (frame)); |
727e958e MR |
365 | } |
366 | ||
367 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, | |
368 | Swindow_minibuffer_p, 0, 1, 0, | |
369 | doc: /* Return non-nil if WINDOW is a minibuffer window. | |
52162052 | 370 | WINDOW must be a valid window and defaults to the selected one. */) |
727e958e MR |
371 | (Lisp_Object window) |
372 | { | |
52162052 | 373 | return MINI_WINDOW_P (decode_valid_window (window)) ? Qt : Qnil; |
727e958e MR |
374 | } |
375 | ||
376 | /* Don't move this to window.el - this must be a safe routine. */ | |
377 | DEFUN ("frame-first-window", Fframe_first_window, Sframe_first_window, 0, 1, 0, | |
87e68db4 JB |
378 | doc: /* Return the topmost, leftmost live window on FRAME-OR-WINDOW. |
379 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
52162052 MR |
380 | Else if FRAME-OR-WINDOW denotes a valid window, return the first window |
381 | of that window's frame. If FRAME-OR-WINDOW denotes a live frame, return | |
727e958e MR |
382 | the first window of that frame. */) |
383 | (Lisp_Object frame_or_window) | |
384 | { | |
385 | Lisp_Object window; | |
386 | ||
387 | if (NILP (frame_or_window)) | |
e69b0960 | 388 | window = SELECTED_FRAME ()->root_window; |
52162052 | 389 | else if (WINDOW_VALID_P (frame_or_window)) |
e69b0960 | 390 | window = XFRAME (WINDOW_FRAME (XWINDOW (frame_or_window)))->root_window; |
727e958e MR |
391 | else |
392 | { | |
393 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 394 | window = XFRAME (frame_or_window)->root_window; |
727e958e MR |
395 | } |
396 | ||
e74aeda8 DA |
397 | while (WINDOWP (XWINDOW (window)->contents)) |
398 | window = XWINDOW (window)->contents; | |
727e958e MR |
399 | |
400 | return window; | |
401 | } | |
402 | ||
403 | DEFUN ("frame-selected-window", Fframe_selected_window, | |
404 | Sframe_selected_window, 0, 1, 0, | |
87e68db4 JB |
405 | doc: /* Return the selected window of FRAME-OR-WINDOW. |
406 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
52162052 MR |
407 | Else if FRAME-OR-WINDOW denotes a valid window, return the selected |
408 | window of that window's frame. If FRAME-OR-WINDOW denotes a live frame, | |
409 | return the selected window of that frame. */) | |
727e958e MR |
410 | (Lisp_Object frame_or_window) |
411 | { | |
412 | Lisp_Object window; | |
413 | ||
414 | if (NILP (frame_or_window)) | |
e69b0960 | 415 | window = SELECTED_FRAME ()->selected_window; |
52162052 | 416 | else if (WINDOW_VALID_P (frame_or_window)) |
e69b0960 | 417 | window = XFRAME (WINDOW_FRAME (XWINDOW (frame_or_window)))->selected_window; |
727e958e MR |
418 | else |
419 | { | |
420 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 421 | window = XFRAME (frame_or_window)->selected_window; |
727e958e MR |
422 | } |
423 | ||
424 | return window; | |
425 | } | |
426 | ||
427 | DEFUN ("set-frame-selected-window", Fset_frame_selected_window, | |
428 | Sset_frame_selected_window, 2, 3, 0, | |
429 | doc: /* Set selected window of FRAME to WINDOW. | |
430 | FRAME must be a live frame and defaults to the selected one. If FRAME | |
431 | is the selected frame, this makes WINDOW the selected window. Optional | |
432 | argument NORECORD non-nil means to neither change the order of recently | |
433 | selected windows nor the buffer list. WINDOW must denote a live window. | |
434 | Return WINDOW. */) | |
435 | (Lisp_Object frame, Lisp_Object window, Lisp_Object norecord) | |
436 | { | |
437 | if (NILP (frame)) | |
438 | frame = selected_frame; | |
439 | ||
440 | CHECK_LIVE_FRAME (frame); | |
441 | CHECK_LIVE_WINDOW (window); | |
442 | ||
443 | if (! EQ (frame, WINDOW_FRAME (XWINDOW (window)))) | |
444 | error ("In `set-frame-selected-window', WINDOW is not on FRAME"); | |
445 | ||
446 | if (EQ (frame, selected_frame)) | |
447 | return Fselect_window (window, norecord); | |
448 | else | |
f00af5b1 PE |
449 | { |
450 | fset_selected_window (XFRAME (frame), window); | |
451 | return window; | |
452 | } | |
727e958e MR |
453 | } |
454 | ||
455 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
456 | doc: /* Return the selected window. | |
457 | The selected window is the window in which the standard cursor for | |
458 | selected windows appears and to which many commands apply. */) | |
459 | (void) | |
460 | { | |
461 | return selected_window; | |
462 | } | |
463 | ||
9397e56f MR |
464 | int window_select_count; |
465 | ||
727e958e MR |
466 | /* If select_window is called with inhibit_point_swap non-zero it will |
467 | not store point of the old selected window's buffer back into that | |
468 | window's pointm slot. This is needed by Fset_window_configuration to | |
469 | avoid that the display routine is called with selected_window set to | |
470 | Qnil causing a subsequent crash. */ | |
471 | static Lisp_Object | |
472 | select_window (Lisp_Object window, Lisp_Object norecord, int inhibit_point_swap) | |
473 | { | |
474 | register struct window *w; | |
727e958e MR |
475 | struct frame *sf; |
476 | ||
477 | CHECK_LIVE_WINDOW (window); | |
478 | ||
479 | w = XWINDOW (window); | |
727e958e | 480 | |
734fbd86 | 481 | /* Make the selected window's buffer current. */ |
e74aeda8 | 482 | Fset_buffer (w->contents); |
734fbd86 | 483 | |
727e958e | 484 | if (EQ (window, selected_window) && !inhibit_point_swap) |
562c6ee9 SM |
485 | /* `switch-to-buffer' uses (select-window (selected-window)) as a "clever" |
486 | way to call record_buffer from Elisp, so it's important that we call | |
487 | record_buffer before returning here. */ | |
488 | goto record_and_return; | |
727e958e | 489 | |
655ab9a3 | 490 | if (NILP (norecord)) |
22800ae9 SM |
491 | { /* Mark the window for redisplay since the selected-window has |
492 | a different mode-line. */ | |
493 | wset_redisplay (XWINDOW (selected_window)); | |
494 | wset_redisplay (w); | |
495 | } | |
655ab9a3 SM |
496 | else |
497 | redisplay_other_windows (); | |
22800ae9 | 498 | |
727e958e MR |
499 | sf = SELECTED_FRAME (); |
500 | if (XFRAME (WINDOW_FRAME (w)) != sf) | |
501 | { | |
f00af5b1 | 502 | fset_selected_window (XFRAME (WINDOW_FRAME (w)), window); |
727e958e MR |
503 | /* Use this rather than Fhandle_switch_frame |
504 | so that FRAME_FOCUS_FRAME is moved appropriately as we | |
505 | move around in the state where a minibuffer in a separate | |
506 | frame is active. */ | |
507 | Fselect_frame (WINDOW_FRAME (w), norecord); | |
508 | /* Fselect_frame called us back so we've done all the work already. */ | |
509 | eassert (EQ (window, selected_window)); | |
510 | return window; | |
511 | } | |
512 | else | |
f00af5b1 | 513 | fset_selected_window (sf, window); |
727e958e | 514 | |
1e101a4b | 515 | select_window_1 (window, inhibit_point_swap); |
562c6ee9 | 516 | bset_last_selected_window (XBUFFER (w->contents), window); |
1e101a4b | 517 | |
562c6ee9 | 518 | record_and_return: |
7ffe7ef6 SM |
519 | /* record_buffer can run QUIT, so make sure it is run only after we have |
520 | re-established the invariant between selected_window and selected_frame, | |
521 | otherwise the temporary broken invariant might "escape" (bug#14161). */ | |
522 | if (NILP (norecord)) | |
523 | { | |
524 | w->use_time = ++window_select_count; | |
525 | record_buffer (w->contents); | |
526 | } | |
527 | ||
1e101a4b SM |
528 | return window; |
529 | } | |
530 | ||
531 | /* Select window with a minimum of fuss, i.e. don't record the change anywhere | |
3f781c75 | 532 | (not even for redisplay's benefit), and assume that the window's frame is |
1e101a4b | 533 | already selected. */ |
12384b01 | 534 | static void |
1e101a4b SM |
535 | select_window_1 (Lisp_Object window, bool inhibit_point_swap) |
536 | { | |
734fbd86 MR |
537 | /* Store the old selected window's buffer's point in pointm of the old |
538 | selected window. It belongs to that window, and when the window is | |
539 | not selected, must be in the window. */ | |
727e958e MR |
540 | if (!inhibit_point_swap) |
541 | { | |
1e101a4b | 542 | struct window *ow = XWINDOW (selected_window); |
e74aeda8 DA |
543 | if (BUFFERP (ow->contents)) |
544 | set_marker_both (ow->pointm, ow->contents, | |
545 | BUF_PT (XBUFFER (ow->contents)), | |
546 | BUF_PT_BYTE (XBUFFER (ow->contents))); | |
727e958e MR |
547 | } |
548 | ||
549 | selected_window = window; | |
727e958e MR |
550 | |
551 | /* Go to the point recorded in the window. | |
552 | This is important when the buffer is in more | |
553 | than one window. It also matters when | |
554 | redisplay_window has altered point after scrolling, | |
555 | because it makes the change only in the window. */ | |
032f7451 | 556 | set_point_from_marker (XWINDOW (window)->pointm); |
727e958e MR |
557 | } |
558 | ||
559 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 2, 0, | |
94900bfe MR |
560 | doc: /* Select WINDOW which must be a live window. |
561 | Also make WINDOW's frame the selected frame and WINDOW that frame's | |
562 | selected window. In addition, make WINDOW's buffer current and set that | |
563 | buffer's value of `point' to the value of WINDOW's `window-point'. | |
564 | Return WINDOW. | |
727e958e MR |
565 | |
566 | Optional second arg NORECORD non-nil means do not put this buffer at the | |
567 | front of the buffer list and do not make this window the most recently | |
568 | selected one. | |
605be8af | 569 | |
727e958e MR |
570 | Note that the main editor command loop sets the current buffer to the |
571 | buffer of the selected window before each command. */) | |
572 | (register Lisp_Object window, Lisp_Object norecord) | |
573 | { | |
574 | return select_window (window, norecord, 0); | |
575 | } | |
576 | \f | |
bf60a96b | 577 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, |
49745b39 CY |
578 | doc: /* Return the buffer displayed in window WINDOW. |
579 | If WINDOW is omitted or nil, it defaults to the selected window. | |
580 | Return nil for an internal window or a deleted window. */) | |
bf60a96b MR |
581 | (Lisp_Object window) |
582 | { | |
e74aeda8 DA |
583 | struct window *w = decode_any_window (window); |
584 | return WINDOW_LEAF_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
585 | } |
586 | ||
587 | DEFUN ("window-parent", Fwindow_parent, Swindow_parent, 0, 1, 0, | |
49745b39 | 588 | doc: /* Return the parent window of window WINDOW. |
52162052 | 589 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 | 590 | Return nil for a window with no parent (e.g. a root window). */) |
bf60a96b MR |
591 | (Lisp_Object window) |
592 | { | |
52162052 | 593 | return decode_valid_window (window)->parent; |
bf60a96b MR |
594 | } |
595 | ||
89bc0592 | 596 | DEFUN ("window-top-child", Fwindow_top_child, Swindow_top_child, 0, 1, 0, |
49745b39 | 597 | doc: /* Return the topmost child window of window WINDOW. |
52162052 | 598 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 CY |
599 | Return nil if WINDOW is a live window (live windows have no children). |
600 | Return nil if WINDOW is an internal window whose children form a | |
601 | horizontal combination. */) | |
bf60a96b MR |
602 | (Lisp_Object window) |
603 | { | |
e74aeda8 DA |
604 | struct window *w = decode_valid_window (window); |
605 | return WINDOW_VERTICAL_COMBINATION_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
606 | } |
607 | ||
89bc0592 | 608 | DEFUN ("window-left-child", Fwindow_left_child, Swindow_left_child, 0, 1, 0, |
49745b39 | 609 | doc: /* Return the leftmost child window of window WINDOW. |
52162052 | 610 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 CY |
611 | Return nil if WINDOW is a live window (live windows have no children). |
612 | Return nil if WINDOW is an internal window whose children form a | |
613 | vertical combination. */) | |
bf60a96b MR |
614 | (Lisp_Object window) |
615 | { | |
e74aeda8 DA |
616 | struct window *w = decode_valid_window (window); |
617 | return WINDOW_HORIZONTAL_COMBINATION_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
618 | } |
619 | ||
d68443dc | 620 | DEFUN ("window-next-sibling", Fwindow_next_sibling, Swindow_next_sibling, 0, 1, 0, |
49745b39 | 621 | doc: /* Return the next sibling window of window WINDOW. |
52162052 | 622 | WINDOW must be a valid window and defaults to the selected one. |
d68443dc | 623 | Return nil if WINDOW has no next sibling. */) |
bf60a96b MR |
624 | (Lisp_Object window) |
625 | { | |
52162052 | 626 | return decode_valid_window (window)->next; |
bf60a96b MR |
627 | } |
628 | ||
d68443dc | 629 | DEFUN ("window-prev-sibling", Fwindow_prev_sibling, Swindow_prev_sibling, 0, 1, 0, |
49745b39 | 630 | doc: /* Return the previous sibling window of window WINDOW. |
52162052 | 631 | WINDOW must be a valid window and defaults to the selected one. |
d68443dc | 632 | Return nil if WINDOW has no previous sibling. */) |
bf60a96b MR |
633 | (Lisp_Object window) |
634 | { | |
52162052 | 635 | return decode_valid_window (window)->prev; |
bf60a96b | 636 | } |
67492200 | 637 | |
72f94d4b | 638 | DEFUN ("window-combination-limit", Fwindow_combination_limit, Swindow_combination_limit, 1, 1, 0, |
b6f67890 | 639 | doc: /* Return combination limit of window WINDOW. |
095d384d | 640 | WINDOW must be a valid window used in horizontal or vertical combination. |
be7f5545 | 641 | If the return value is nil, child windows of WINDOW can be recombined with |
b6f67890 | 642 | WINDOW's siblings. A return value of t means that child windows of |
095d384d | 643 | WINDOW are never \(re-)combined with WINDOW's siblings. */) |
496e208e | 644 | (Lisp_Object window) |
7ab12479 | 645 | { |
095d384d DA |
646 | struct window *w; |
647 | ||
72f94d4b | 648 | CHECK_VALID_WINDOW (window); |
095d384d | 649 | w = XWINDOW (window); |
e74aeda8 | 650 | if (WINDOW_LEAF_P (w)) |
095d384d | 651 | error ("Combination limit is meaningful for internal windows only"); |
e74aeda8 | 652 | return w->combination_limit; |
7ab12479 | 653 | } |
53bb6b99 | 654 | |
b6f67890 | 655 | DEFUN ("set-window-combination-limit", Fset_window_combination_limit, Sset_window_combination_limit, 2, 2, 0, |
d2999b1a | 656 | doc: /* Set combination limit of window WINDOW to LIMIT; return LIMIT. |
095d384d | 657 | WINDOW must be a valid window used in horizontal or vertical combination. |
8e17c9ba MR |
658 | If LIMIT is nil, child windows of WINDOW can be recombined with WINDOW's |
659 | siblings. LIMIT t means that child windows of WINDOW are never | |
660 | \(re-)combined with WINDOW's siblings. Other values are reserved for | |
095d384d | 661 | future use. */) |
d2999b1a | 662 | (Lisp_Object window, Lisp_Object limit) |
b3a10345 | 663 | { |
095d384d DA |
664 | struct window *w; |
665 | ||
666 | CHECK_VALID_WINDOW (window); | |
667 | w = XWINDOW (window); | |
e74aeda8 | 668 | if (WINDOW_LEAF_P (w)) |
095d384d DA |
669 | error ("Combination limit is meaningful for internal windows only"); |
670 | wset_combination_limit (w, limit); | |
e8c17b81 | 671 | return limit; |
496e208e | 672 | } |
7bbc67d2 | 673 | |
496e208e | 674 | DEFUN ("window-use-time", Fwindow_use_time, Swindow_use_time, 0, 1, 0, |
49745b39 | 675 | doc: /* Return the use time of window WINDOW. |
52162052 | 676 | WINDOW must be a live window and defaults to the selected one. |
49745b39 CY |
677 | The window with the highest use time is the most recently selected |
678 | one. The window with the lowest use time is the least recently | |
679 | selected one. */) | |
496e208e MR |
680 | (Lisp_Object window) |
681 | { | |
52162052 | 682 | return make_number (decode_live_window (window)->use_time); |
496e208e | 683 | } |
abde8f8c | 684 | \f |
880e6158 | 685 | DEFUN ("window-pixel-width", Fwindow_pixel_width, Swindow_pixel_width, 0, 1, 0, |
6cb4da45 | 686 | doc: /* Return the width of window WINDOW in pixels. |
880e6158 MR |
687 | WINDOW must be a valid window and defaults to the selected one. |
688 | ||
689 | The return value includes the fringes and margins of WINDOW as well as | |
690 | any vertical dividers or scroll bars belonging to WINDOW. If WINDOW is | |
691 | an internal window, its pixel width is the width of the screen areas | |
692 | spanned by its children. */) | |
693 | (Lisp_Object window) | |
694 | { | |
695 | return make_number (decode_valid_window (window)->pixel_width); | |
696 | } | |
697 | ||
698 | DEFUN ("window-pixel-height", Fwindow_pixel_height, Swindow_pixel_height, 0, 1, 0, | |
6cb4da45 | 699 | doc: /* Return the height of window WINDOW in pixels. |
880e6158 MR |
700 | WINDOW must be a valid window and defaults to the selected one. |
701 | ||
702 | The return value includes the mode line and header line, if any. If | |
703 | WINDOW is an internal window, its pixel height is the height of the | |
704 | screen areas spanned by its children. */) | |
705 | (Lisp_Object window) | |
706 | { | |
707 | return make_number (decode_valid_window (window)->pixel_height); | |
708 | } | |
709 | ||
6cb4da45 MR |
710 | DEFUN ("window-total-height", Fwindow_total_height, Swindow_total_height, 0, 2, 0, |
711 | doc: /* Return the height of window WINDOW in lines. | |
52162052 | 712 | WINDOW must be a valid window and defaults to the selected one. |
b3a10345 | 713 | |
6cb4da45 MR |
714 | The return value includes the heights of WINDOW's mode and header line |
715 | and its bottom divider, if any. If WINDOW is an internal window, the | |
716 | total height is the height of the screen areas spanned by its children. | |
536833ab | 717 | |
6cb4da45 MR |
718 | If WINDOW's pixel height is not an integral multiple of its frame's |
719 | character height, the number of lines occupied by WINDOW is rounded | |
720 | internally. This is done in a way such that, if WINDOW is a parent | |
721 | window, the sum of the total heights of all its children internally | |
722 | equals the total height of WINDOW. | |
723 | ||
724 | If the optional argument ROUND is `ceiling', return the smallest integer | |
725 | larger than WINDOW's pixel height divided by the character height of | |
726 | WINDOW's frame. ROUND `floor' means to return the largest integer | |
727 | smaller than WINDOW's pixel height divided by the character height of | |
728 | WINDOW's frame. Any other value of ROUND means to return the internal | |
729 | total height of WINDOW. */) | |
730 | (Lisp_Object window, Lisp_Object round) | |
496e208e | 731 | { |
6cb4da45 MR |
732 | struct window *w = decode_valid_window (window); |
733 | ||
734 | if (! EQ (round, Qfloor) && ! EQ (round, Qceiling)) | |
735 | return make_number (w->total_lines); | |
736 | else | |
737 | { | |
738 | int unit = FRAME_LINE_HEIGHT (WINDOW_XFRAME (w)); | |
739 | ||
740 | return make_number (EQ (round, Qceiling) | |
741 | ? ((w->pixel_height + unit - 1) /unit) | |
742 | : (w->pixel_height / unit)); | |
743 | } | |
105216ed | 744 | } |
536833ab | 745 | |
6cb4da45 MR |
746 | DEFUN ("window-total-width", Fwindow_total_width, Swindow_total_width, 0, 2, 0, |
747 | doc: /* Return the total width of window WINDOW in columns. | |
52162052 | 748 | WINDOW must be a valid window and defaults to the selected one. |
b3a10345 | 749 | |
6cb4da45 MR |
750 | The return value includes the widths of WINDOW's fringes, margins, |
751 | scroll bars and its right divider, if any. If WINDOW is an internal | |
752 | window, the total width is the width of the screen areas spanned by its | |
753 | children. | |
754 | ||
755 | If WINDOW's pixel width is not an integral multiple of its frame's | |
756 | character width, the number of lines occupied by WINDOW is rounded | |
757 | internally. This is done in a way such that, if WINDOW is a parent | |
758 | window, the sum of the total widths of all its children internally | |
759 | equals the total width of WINDOW. | |
760 | ||
761 | If the optional argument ROUND is `ceiling', return the smallest integer | |
762 | larger than WINDOW's pixel width divided by the character width of | |
763 | WINDOW's frame. ROUND `floor' means to return the largest integer | |
764 | smaller than WINDOW's pixel width divided by the character width of | |
765 | WINDOW's frame. Any other value of ROUND means to return the internal | |
766 | total width of WINDOW. */) | |
767 | (Lisp_Object window, Lisp_Object round) | |
496e208e | 768 | { |
6cb4da45 MR |
769 | struct window *w = decode_valid_window (window); |
770 | ||
771 | if (! EQ (round, Qfloor) && ! EQ (round, Qceiling)) | |
772 | return make_number (w->total_cols); | |
773 | else | |
774 | { | |
775 | int unit = FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)); | |
776 | ||
777 | return make_number (EQ (round, Qceiling) | |
778 | ? ((w->pixel_width + unit - 1) /unit) | |
779 | : (w->pixel_width / unit)); | |
780 | } | |
abde8f8c | 781 | } |
b3a10345 | 782 | |
496e208e | 783 | DEFUN ("window-new-total", Fwindow_new_total, Swindow_new_total, 0, 1, 0, |
49745b39 | 784 | doc: /* Return the new total size of window WINDOW. |
52162052 | 785 | WINDOW must be a valid window and defaults to the selected one. */) |
496e208e MR |
786 | (Lisp_Object window) |
787 | { | |
52162052 | 788 | return decode_valid_window (window)->new_total; |
496e208e MR |
789 | } |
790 | ||
791 | DEFUN ("window-normal-size", Fwindow_normal_size, Swindow_normal_size, 0, 2, 0, | |
49745b39 | 792 | doc: /* Return the normal height of window WINDOW. |
52162052 | 793 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 | 794 | If HORIZONTAL is non-nil, return the normal width of WINDOW. */) |
496e208e MR |
795 | (Lisp_Object window, Lisp_Object horizontal) |
796 | { | |
52162052 | 797 | struct window *w = decode_valid_window (window); |
d3d50620 DA |
798 | |
799 | return NILP (horizontal) ? w->normal_lines : w->normal_cols; | |
496e208e MR |
800 | } |
801 | ||
802 | DEFUN ("window-new-normal", Fwindow_new_normal, Swindow_new_normal, 0, 1, 0, | |
49745b39 | 803 | doc: /* Return new normal size of window WINDOW. |
52162052 | 804 | WINDOW must be a valid window and defaults to the selected one. */) |
496e208e MR |
805 | (Lisp_Object window) |
806 | { | |
52162052 | 807 | return decode_valid_window (window)->new_normal; |
496e208e MR |
808 | } |
809 | ||
880e6158 MR |
810 | DEFUN ("window-new-pixel", Fwindow_new_pixel, Swindow_new_pixel, 0, 1, 0, |
811 | doc: /* Return new pixel size of window WINDOW. | |
812 | WINDOW must be a valid window and defaults to the selected one. */) | |
813 | (Lisp_Object window) | |
814 | { | |
815 | return decode_valid_window (window)->new_pixel; | |
816 | } | |
817 | ||
818 | DEFUN ("window-pixel-left", Fwindow_pixel_left, Swindow_pixel_left, 0, 1, 0, | |
819 | doc: /* Return left pixel edge of window WINDOW. | |
820 | WINDOW must be a valid window and defaults to the selected one. */) | |
821 | (Lisp_Object window) | |
822 | { | |
823 | return make_number (decode_valid_window (window)->pixel_left); | |
824 | } | |
825 | ||
826 | DEFUN ("window-pixel-top", Fwindow_pixel_top, Swindow_pixel_top, 0, 1, 0, | |
827 | doc: /* Return top pixel edge of window WINDOW. | |
828 | WINDOW must be a valid window and defaults to the selected one. */) | |
829 | (Lisp_Object window) | |
830 | { | |
831 | return make_number (decode_valid_window (window)->pixel_top); | |
832 | } | |
833 | ||
abde8f8c | 834 | DEFUN ("window-left-column", Fwindow_left_column, Swindow_left_column, 0, 1, 0, |
49745b39 | 835 | doc: /* Return left column of window WINDOW. |
105216ed CY |
836 | This is the distance, in columns, between the left edge of WINDOW and |
837 | the left edge of the frame's window area. For instance, the return | |
838 | value is 0 if there is no window to the left of WINDOW. | |
839 | ||
52162052 | 840 | WINDOW must be a valid window and defaults to the selected one. */) |
abde8f8c MR |
841 | (Lisp_Object window) |
842 | { | |
5f24fa51 | 843 | return make_number (decode_valid_window (window)->left_col); |
abde8f8c MR |
844 | } |
845 | ||
846 | DEFUN ("window-top-line", Fwindow_top_line, Swindow_top_line, 0, 1, 0, | |
49745b39 | 847 | doc: /* Return top line of window WINDOW. |
105216ed CY |
848 | This is the distance, in lines, between the top of WINDOW and the top |
849 | of the frame's window area. For instance, the return value is 0 if | |
850 | there is no window above WINDOW. | |
851 | ||
52162052 | 852 | WINDOW must be a valid window and defaults to the selected one. */) |
abde8f8c MR |
853 | (Lisp_Object window) |
854 | { | |
5f24fa51 | 855 | return make_number (decode_valid_window (window)->top_line); |
abde8f8c MR |
856 | } |
857 | ||
6cb4da45 MR |
858 | /* Return the number of lines/pixels of W's body. Don't count any mode |
859 | or header line or horizontal divider of W. Rounds down to nearest | |
860 | integer when not working pixelwise. */ | |
46a4ce9e | 861 | static int |
880e6158 | 862 | window_body_height (struct window *w, bool pixelwise) |
abde8f8c | 863 | { |
6cb4da45 | 864 | int height = (w->pixel_height |
880e6158 | 865 | - WINDOW_HEADER_LINE_HEIGHT (w) |
6cb4da45 MR |
866 | - WINDOW_MODE_LINE_HEIGHT (w) |
867 | - WINDOW_BOTTOM_DIVIDER_WIDTH (w)); | |
abde8f8c | 868 | |
6cb4da45 | 869 | return pixelwise ? height : height / FRAME_LINE_HEIGHT (WINDOW_XFRAME (w)); |
abde8f8c MR |
870 | } |
871 | ||
6cb4da45 MR |
872 | /* Return the number of columns/pixels of W's body. Don't count columns |
873 | occupied by the scroll bar or the divider/vertical bar separating W | |
874 | from its right sibling or margins. On window-systems don't count | |
875 | fringes either. Round down to nearest integer when not working | |
876 | pixelwise. */ | |
abde8f8c | 877 | int |
880e6158 | 878 | window_body_width (struct window *w, bool pixelwise) |
abde8f8c MR |
879 | { |
880 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
abde8f8c | 881 | |
6cb4da45 MR |
882 | int width = (w->pixel_width |
883 | - WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
884 | - (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) | |
885 | ? WINDOW_SCROLL_BAR_AREA_WIDTH (w) | |
886 | : ((!FRAME_WINDOW_P (f) | |
887 | && !WINDOW_RIGHTMOST_P (w) | |
888 | && !WINDOW_RIGHT_DIVIDER_WIDTH (w)) | |
889 | /* A vertical bar is either 1 or 0. */ | |
890 | ? 1 : 0)) | |
880e6158 MR |
891 | - WINDOW_MARGINS_WIDTH (w) |
892 | - (FRAME_WINDOW_P (f) | |
893 | ? WINDOW_FRINGES_WIDTH (w) | |
894 | : 0)); | |
880e6158 | 895 | |
6cb4da45 | 896 | return pixelwise ? width : width / FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)); |
880e6158 MR |
897 | } |
898 | ||
899 | DEFUN ("window-body-height", Fwindow_body_height, Swindow_body_height, 0, 2, 0, | |
6cb4da45 MR |
900 | doc: /* Return the height of WINDOW's text area. |
901 | WINDOW must be a live window and defaults to the selected one. Optional | |
902 | argument PIXELWISE non-nil means return the height of WINDOW's text area | |
903 | in pixels. The return value does not include the mode line or header | |
904 | line or any horizontal divider. | |
905 | ||
906 | If PIXELWISE is nil, return the largest integer smaller than WINDOW's | |
907 | pixel height divided by the character height of WINDOW's frame. This | |
908 | means that if a line at the bottom of the text area is only partially | |
909 | visible, that line is not counted. */) | |
880e6158 MR |
910 | (Lisp_Object window, Lisp_Object pixelwise) |
911 | { | |
912 | return make_number (window_body_height (decode_live_window (window), | |
913 | NILP (pixelwise) ? 0 : 1)); | |
abde8f8c MR |
914 | } |
915 | ||
880e6158 | 916 | DEFUN ("window-body-width", Fwindow_body_width, Swindow_body_width, 0, 2, 0, |
6cb4da45 MR |
917 | doc: /* Return the width of WINDOW's text area. |
918 | WINDOW must be a live window and defaults to the selected one. Optional | |
919 | argument PIXELWISE non-nil means return the width in pixels. The return | |
920 | value does not include any vertical dividers, fringes or marginal areas, | |
921 | or scroll bars. | |
922 | ||
923 | If PIXELWISE is nil, return the largest integer smaller than WINDOW's | |
924 | pixel width divided by the character width of WINDOW's frame. This | |
925 | means that if a column at the right of the text area is only partially | |
926 | visible, that column is not counted. */) | |
880e6158 MR |
927 | (Lisp_Object window, Lisp_Object pixelwise) |
928 | { | |
929 | return make_number (window_body_width (decode_live_window (window), | |
930 | NILP (pixelwise) ? 0 : 1)); | |
931 | } | |
932 | ||
933 | DEFUN ("window-mode-line-height", Fwindow_mode_line_height, | |
934 | Swindow_mode_line_height, 0, 1, 0, | |
6cb4da45 | 935 | doc: /* Return the height in pixels of WINDOW's mode-line. |
880e6158 | 936 | WINDOW must be a live window and defaults to the selected one. */) |
105216ed | 937 | (Lisp_Object window) |
abde8f8c | 938 | { |
880e6158 | 939 | return (make_number (WINDOW_MODE_LINE_HEIGHT (decode_live_window (window)))); |
105216ed | 940 | } |
abde8f8c | 941 | |
880e6158 MR |
942 | DEFUN ("window-header-line-height", Fwindow_header_line_height, |
943 | Swindow_header_line_height, 0, 1, 0, | |
6cb4da45 | 944 | doc: /* Return the height in pixels of WINDOW's header-line. |
880e6158 MR |
945 | WINDOW must be a live window and defaults to the selected one. */) |
946 | (Lisp_Object window) | |
947 | { | |
948 | return (make_number (WINDOW_HEADER_LINE_HEIGHT (decode_live_window (window)))); | |
949 | } | |
105216ed | 950 | |
880e6158 MR |
951 | DEFUN ("window-right-divider-width", Fwindow_right_divider_width, |
952 | Swindow_right_divider_width, 0, 1, 0, | |
6cb4da45 | 953 | doc: /* Return the width in pixels of WINDOW's right divider. |
880e6158 | 954 | WINDOW must be a live window and defaults to the selected one. */) |
105216ed CY |
955 | (Lisp_Object window) |
956 | { | |
880e6158 MR |
957 | return (make_number (WINDOW_RIGHT_DIVIDER_WIDTH (decode_live_window (window)))); |
958 | } | |
959 | ||
960 | DEFUN ("window-bottom-divider-width", Fwindow_bottom_divider_width, | |
961 | Swindow_bottom_divider_width, 0, 1, 0, | |
6cb4da45 | 962 | doc: /* Return the width in pixels of WINDOW's bottom divider. |
880e6158 MR |
963 | WINDOW must be a live window and defaults to the selected one. */) |
964 | (Lisp_Object window) | |
965 | { | |
966 | return (make_number (WINDOW_BOTTOM_DIVIDER_WIDTH (decode_live_window (window)))); | |
abde8f8c | 967 | } |
536833ab | 968 | |
7ab12479 | 969 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, |
c85322d0 | 970 | doc: /* Return the number of columns by which WINDOW is scrolled from left margin. |
496e208e | 971 | WINDOW must be a live window and defaults to the selected one. */) |
5842a27b | 972 | (Lisp_Object window) |
7ab12479 | 973 | { |
52162052 | 974 | return make_number (decode_live_window (window)->hscroll); |
7ab12479 JB |
975 | } |
976 | ||
24a212eb PE |
977 | /* Set W's horizontal scroll amount to HSCROLL clipped to a reasonable |
978 | range, returning the new amount as a fixnum. */ | |
979 | static Lisp_Object | |
980 | set_window_hscroll (struct window *w, EMACS_INT hscroll) | |
981 | { | |
4e71fd89 PE |
982 | /* Horizontal scrolling has problems with large scroll amounts. |
983 | It's too slow with long lines, and even with small lines the | |
984 | display can be messed up. For now, though, impose only the limits | |
985 | required by the internal representation: horizontal scrolling must | |
986 | fit in fixnum (since it's visible to Elisp) and into ptrdiff_t | |
987 | (since it's stored in a ptrdiff_t). */ | |
988 | ptrdiff_t hscroll_max = min (MOST_POSITIVE_FIXNUM, PTRDIFF_MAX); | |
989 | ptrdiff_t new_hscroll = clip_to_bounds (0, hscroll, hscroll_max); | |
24a212eb PE |
990 | |
991 | /* Prevent redisplay shortcuts when changing the hscroll. */ | |
992 | if (w->hscroll != new_hscroll) | |
e74aeda8 | 993 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
24a212eb PE |
994 | |
995 | w->hscroll = new_hscroll; | |
996 | return make_number (new_hscroll); | |
997 | } | |
998 | ||
7ab12479 | 999 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, |
fdb82f93 | 1000 | doc: /* Set number of columns WINDOW is scrolled from left margin to NCOL. |
52162052 | 1001 | WINDOW must be a live window and defaults to the selected one. |
24a212eb PE |
1002 | Clip the number to a reasonable value if out of range. |
1003 | Return the new number. NCOL should be zero or positive. | |
ebadb1e4 EZ |
1004 | |
1005 | Note that if `automatic-hscrolling' is non-nil, you cannot scroll the | |
120b7781 | 1006 | window so that the location of point moves off-window. */) |
5842a27b | 1007 | (Lisp_Object window, Lisp_Object ncol) |
7ab12479 | 1008 | { |
b7826503 | 1009 | CHECK_NUMBER (ncol); |
89bc0592 | 1010 | return set_window_hscroll (decode_live_window (window), XINT (ncol)); |
7ab12479 JB |
1011 | } |
1012 | ||
190eb263 RS |
1013 | DEFUN ("window-redisplay-end-trigger", Fwindow_redisplay_end_trigger, |
1014 | Swindow_redisplay_end_trigger, 0, 1, 0, | |
fdb82f93 | 1015 | doc: /* Return WINDOW's redisplay end trigger value. |
52162052 | 1016 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 | 1017 | See `set-window-redisplay-end-trigger' for more information. */) |
5842a27b | 1018 | (Lisp_Object window) |
190eb263 | 1019 | { |
52162052 | 1020 | return decode_live_window (window)->redisplay_end_trigger; |
190eb263 RS |
1021 | } |
1022 | ||
1023 | DEFUN ("set-window-redisplay-end-trigger", Fset_window_redisplay_end_trigger, | |
1024 | Sset_window_redisplay_end_trigger, 2, 2, 0, | |
fdb82f93 | 1025 | doc: /* Set WINDOW's redisplay end trigger value to VALUE. |
52162052 MR |
1026 | WINDOW must be a live window and defaults to the selected one. VALUE |
1027 | should be a buffer position (typically a marker) or nil. If it is a | |
1028 | buffer position, then if redisplay in WINDOW reaches a position beyond | |
1029 | VALUE, the functions in `redisplay-end-trigger-functions' are called | |
1030 | with two arguments: WINDOW, and the end trigger value. Afterwards the | |
1031 | end-trigger value is reset to nil. */) | |
5842a27b | 1032 | (register Lisp_Object window, Lisp_Object value) |
190eb263 | 1033 | { |
e8c17b81 PE |
1034 | wset_redisplay_end_trigger (decode_live_window (window), value); |
1035 | return value; | |
190eb263 RS |
1036 | } |
1037 | ||
7ab12479 | 1038 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, |
fdb82f93 | 1039 | doc: /* Return a list of the edge coordinates of WINDOW. |
52162052 MR |
1040 | WINDOW must be a valid window and defaults to the selected one. |
1041 | ||
1042 | The returned list has the form (LEFT TOP RIGHT BOTTOM). TOP and BOTTOM | |
1043 | count by lines, and LEFT and RIGHT count by columns, all relative to 0, | |
1044 | 0 at top left corner of frame. | |
1045 | ||
1046 | RIGHT is one more than the rightmost column occupied by WINDOW. BOTTOM | |
1047 | is one more than the bottommost row occupied by WINDOW. The edges | |
1048 | include the space used by WINDOW's scroll bar, display margins, fringes, | |
1049 | header line, and/or mode line. For the edges of just the text area, use | |
1050 | `window-inside-edges'. */) | |
5842a27b | 1051 | (Lisp_Object window) |
7ab12479 | 1052 | { |
52162052 | 1053 | register struct window *w = decode_valid_window (window); |
7ab12479 | 1054 | |
1479c557 PE |
1055 | return list4i (WINDOW_LEFT_EDGE_COL (w), WINDOW_TOP_EDGE_LINE (w), |
1056 | WINDOW_RIGHT_EDGE_COL (w), WINDOW_BOTTOM_EDGE_LINE (w)); | |
7ab12479 JB |
1057 | } |
1058 | ||
c99a9eb3 RS |
1059 | DEFUN ("window-pixel-edges", Fwindow_pixel_edges, Swindow_pixel_edges, 0, 1, 0, |
1060 | doc: /* Return a list of the edge pixel coordinates of WINDOW. | |
52162052 MR |
1061 | WINDOW must be a valid window and defaults to the selected one. |
1062 | ||
1063 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1064 | 0, 0 at the top left corner of the frame. | |
b35ac83e CY |
1065 | |
1066 | RIGHT is one more than the rightmost x position occupied by WINDOW. | |
1067 | BOTTOM is one more than the bottommost y position occupied by WINDOW. | |
1068 | The pixel edges include the space used by WINDOW's scroll bar, display | |
1069 | margins, fringes, header line, and/or mode line. For the pixel edges | |
1070 | of just the text area, use `window-inside-pixel-edges'. */) | |
5842a27b | 1071 | (Lisp_Object window) |
c99a9eb3 | 1072 | { |
52162052 | 1073 | register struct window *w = decode_valid_window (window); |
c99a9eb3 | 1074 | |
1479c557 PE |
1075 | return list4i (WINDOW_LEFT_EDGE_X (w), WINDOW_TOP_EDGE_Y (w), |
1076 | WINDOW_RIGHT_EDGE_X (w), WINDOW_BOTTOM_EDGE_Y (w)); | |
c99a9eb3 RS |
1077 | } |
1078 | ||
9d5405ec | 1079 | static void |
5e617bc2 | 1080 | calc_absolute_offset (struct window *w, int *add_x, int *add_y) |
9d5405ec | 1081 | { |
d3d50620 | 1082 | struct frame *f = XFRAME (w->frame); |
9d5405ec J |
1083 | *add_y = f->top_pos; |
1084 | #ifdef FRAME_MENUBAR_HEIGHT | |
1085 | *add_y += FRAME_MENUBAR_HEIGHT (f); | |
1086 | #endif | |
bfeabdc3 JD |
1087 | #ifdef FRAME_TOOLBAR_TOP_HEIGHT |
1088 | *add_y += FRAME_TOOLBAR_TOP_HEIGHT (f); | |
66d13b20 | 1089 | #elif defined (FRAME_TOOLBAR_HEIGHT) |
9d5405ec J |
1090 | *add_y += FRAME_TOOLBAR_HEIGHT (f); |
1091 | #endif | |
1092 | #ifdef FRAME_NS_TITLEBAR_HEIGHT | |
1093 | *add_y += FRAME_NS_TITLEBAR_HEIGHT (f); | |
1094 | #endif | |
1095 | *add_x = f->left_pos; | |
bfeabdc3 JD |
1096 | #ifdef FRAME_TOOLBAR_LEFT_WIDTH |
1097 | *add_x += FRAME_TOOLBAR_LEFT_WIDTH (f); | |
1098 | #endif | |
9d5405ec J |
1099 | } |
1100 | ||
1101 | DEFUN ("window-absolute-pixel-edges", Fwindow_absolute_pixel_edges, | |
1102 | Swindow_absolute_pixel_edges, 0, 1, 0, | |
1103 | doc: /* Return a list of the edge pixel coordinates of WINDOW. | |
52162052 MR |
1104 | WINDOW must be a valid window and defaults to the selected one. |
1105 | ||
1106 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1107 | 0, 0 at the top left corner of the display. | |
9d5405ec J |
1108 | |
1109 | RIGHT is one more than the rightmost x position occupied by WINDOW. | |
1110 | BOTTOM is one more than the bottommost y position occupied by WINDOW. | |
1111 | The pixel edges include the space used by WINDOW's scroll bar, display | |
1112 | margins, fringes, header line, and/or mode line. For the pixel edges | |
c49d071a | 1113 | of just the text area, use `window-inside-absolute-pixel-edges'. */) |
5842a27b | 1114 | (Lisp_Object window) |
9d5405ec | 1115 | { |
52162052 | 1116 | register struct window *w = decode_valid_window (window); |
9d5405ec | 1117 | int add_x, add_y; |
89bc0592 | 1118 | |
ed3751c8 | 1119 | calc_absolute_offset (w, &add_x, &add_y); |
9d5405ec | 1120 | |
1479c557 PE |
1121 | return list4i (WINDOW_LEFT_EDGE_X (w) + add_x, |
1122 | WINDOW_TOP_EDGE_Y (w) + add_y, | |
1123 | WINDOW_RIGHT_EDGE_X (w) + add_x, | |
1124 | WINDOW_BOTTOM_EDGE_Y (w) + add_y); | |
9d5405ec J |
1125 | } |
1126 | ||
c99a9eb3 RS |
1127 | DEFUN ("window-inside-edges", Fwindow_inside_edges, Swindow_inside_edges, 0, 1, 0, |
1128 | doc: /* Return a list of the edge coordinates of WINDOW. | |
52162052 MR |
1129 | WINDOW must be a live window and defaults to the selected one. |
1130 | ||
1131 | The returned list has the form (LEFT TOP RIGHT BOTTOM). TOP and BOTTOM | |
1132 | count by lines, and LEFT and RIGHT count by columns, all relative to 0, | |
1133 | 0 at top left corner of frame. | |
b35ac83e CY |
1134 | |
1135 | RIGHT is one more than the rightmost column of WINDOW's text area. | |
52162052 MR |
1136 | BOTTOM is one more than the bottommost row of WINDOW's text area. The |
1137 | inside edges do not include the space used by the WINDOW's scroll bar, | |
1138 | display margins, fringes, header line, and/or mode line. */) | |
5842a27b | 1139 | (Lisp_Object window) |
c99a9eb3 | 1140 | { |
52162052 | 1141 | register struct window *w = decode_live_window (window); |
c99a9eb3 | 1142 | |
1479c557 PE |
1143 | return list4i ((WINDOW_BOX_LEFT_EDGE_COL (w) |
1144 | + WINDOW_LEFT_MARGIN_COLS (w) | |
1145 | + WINDOW_LEFT_FRINGE_COLS (w)), | |
1146 | (WINDOW_TOP_EDGE_LINE (w) | |
1147 | + WINDOW_HEADER_LINE_LINES (w)), | |
1148 | (WINDOW_BOX_RIGHT_EDGE_COL (w) | |
1149 | - WINDOW_RIGHT_MARGIN_COLS (w) | |
1150 | - WINDOW_RIGHT_FRINGE_COLS (w)), | |
1151 | (WINDOW_BOTTOM_EDGE_LINE (w) | |
1152 | - WINDOW_MODE_LINE_LINES (w))); | |
c99a9eb3 RS |
1153 | } |
1154 | ||
1155 | DEFUN ("window-inside-pixel-edges", Fwindow_inside_pixel_edges, Swindow_inside_pixel_edges, 0, 1, 0, | |
2fbdc249 | 1156 | doc: /* Return a list of the edge pixel coordinates of WINDOW's text area. |
52162052 MR |
1157 | WINDOW must be a live window and defaults to the selected one. |
1158 | ||
1159 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1160 | (0,0) at the top left corner of the frame's window area. | |
b35ac83e CY |
1161 | |
1162 | RIGHT is one more than the rightmost x position of WINDOW's text area. | |
1163 | BOTTOM is one more than the bottommost y position of WINDOW's text area. | |
1164 | The inside edges do not include the space used by WINDOW's scroll bar, | |
c99a9eb3 | 1165 | display margins, fringes, header line, and/or mode line. */) |
5842a27b | 1166 | (Lisp_Object window) |
c99a9eb3 | 1167 | { |
52162052 | 1168 | register struct window *w = decode_live_window (window); |
c99a9eb3 | 1169 | |
1479c557 PE |
1170 | return list4i ((WINDOW_BOX_LEFT_EDGE_X (w) |
1171 | + WINDOW_LEFT_MARGIN_WIDTH (w) | |
1172 | + WINDOW_LEFT_FRINGE_WIDTH (w)), | |
1173 | (WINDOW_TOP_EDGE_Y (w) | |
1174 | + WINDOW_HEADER_LINE_HEIGHT (w)), | |
1175 | (WINDOW_BOX_RIGHT_EDGE_X (w) | |
1176 | - WINDOW_RIGHT_MARGIN_WIDTH (w) | |
1177 | - WINDOW_RIGHT_FRINGE_WIDTH (w)), | |
1178 | (WINDOW_BOTTOM_EDGE_Y (w) | |
1179 | - WINDOW_MODE_LINE_HEIGHT (w))); | |
c99a9eb3 RS |
1180 | } |
1181 | ||
9d5405ec J |
1182 | DEFUN ("window-inside-absolute-pixel-edges", |
1183 | Fwindow_inside_absolute_pixel_edges, | |
1184 | Swindow_inside_absolute_pixel_edges, 0, 1, 0, | |
2fbdc249 | 1185 | doc: /* Return a list of the edge pixel coordinates of WINDOW's text area. |
52162052 MR |
1186 | WINDOW must be a live window and defaults to the selected one. |
1187 | ||
1188 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1189 | (0,0) at the top left corner of the frame's window area. | |
9d5405ec J |
1190 | |
1191 | RIGHT is one more than the rightmost x position of WINDOW's text area. | |
1192 | BOTTOM is one more than the bottommost y position of WINDOW's text area. | |
1193 | The inside edges do not include the space used by WINDOW's scroll bar, | |
1194 | display margins, fringes, header line, and/or mode line. */) | |
5842a27b | 1195 | (Lisp_Object window) |
9d5405ec | 1196 | { |
52162052 | 1197 | register struct window *w = decode_live_window (window); |
9d5405ec | 1198 | int add_x, add_y; |
89bc0592 | 1199 | |
ed3751c8 | 1200 | calc_absolute_offset (w, &add_x, &add_y); |
9d5405ec | 1201 | |
1479c557 PE |
1202 | return list4i ((WINDOW_BOX_LEFT_EDGE_X (w) |
1203 | + WINDOW_LEFT_MARGIN_WIDTH (w) | |
1204 | + WINDOW_LEFT_FRINGE_WIDTH (w) + add_x), | |
1205 | (WINDOW_TOP_EDGE_Y (w) | |
1206 | + WINDOW_HEADER_LINE_HEIGHT (w) + add_y), | |
1207 | (WINDOW_BOX_RIGHT_EDGE_X (w) | |
1208 | - WINDOW_RIGHT_MARGIN_WIDTH (w) | |
1209 | - WINDOW_RIGHT_FRINGE_WIDTH (w) + add_x), | |
1210 | (WINDOW_BOTTOM_EDGE_Y (w) | |
1211 | - WINDOW_MODE_LINE_HEIGHT (w) + add_y)); | |
9d5405ec J |
1212 | } |
1213 | ||
9173a8fb | 1214 | /* Test if the character at column X, row Y is within window W. |
341f3858 | 1215 | If it is not, return ON_NOTHING; |
880e6158 MR |
1216 | if it is on the window's vertical divider, return |
1217 | ON_RIGHT_DIVIDER; | |
1218 | if it is on the window's horizontal divider, return | |
1219 | ON_BOTTOM_DIVIDER; | |
9173a8fb | 1220 | if it is in the window's text area, return ON_TEXT; |
341f3858 | 1221 | if it is on the window's modeline, return ON_MODE_LINE; |
d5783c40 | 1222 | if it is on the border between the window and its right sibling, |
880e6158 MR |
1223 | return ON_VERTICAL_BORDER; |
1224 | if it is on a scroll bar, return ON_SCROLL_BAR; | |
341f3858 | 1225 | if it is on the window's top line, return ON_HEADER_LINE; |
81d189fd | 1226 | if it is in left or right fringe of the window, |
9173a8fb | 1227 | return ON_LEFT_FRINGE or ON_RIGHT_FRINGE; |
49b996e7 | 1228 | if it is in the marginal area to the left/right of the window, |
9173a8fb | 1229 | return ON_LEFT_MARGIN or ON_RIGHT_MARGIN. |
5500c422 GM |
1230 | |
1231 | X and Y are frame relative pixel coordinates. */ | |
1232 | ||
7442878f | 1233 | static enum window_part |
9173a8fb | 1234 | coordinates_in_window (register struct window *w, int x, int y) |
d5783c40 | 1235 | { |
b0228ace | 1236 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
7442878f | 1237 | enum window_part part; |
949cf20f | 1238 | int ux = FRAME_COLUMN_WIDTH (f); |
c7b08b0d MR |
1239 | int left_x = WINDOW_LEFT_EDGE_X (w); |
1240 | int right_x = WINDOW_RIGHT_EDGE_X (w); | |
1241 | int top_y = WINDOW_TOP_EDGE_Y (w); | |
1242 | int bottom_y = WINDOW_BOTTOM_EDGE_Y (w); | |
dad75588 GM |
1243 | /* The width of the area where the vertical line can be dragged. |
1244 | (Between mode lines for instance. */ | |
1245 | int grabbable_width = ux; | |
949cf20f | 1246 | int lmargin_width, rmargin_width, text_left, text_right; |
9173a8fb | 1247 | |
c7b08b0d MR |
1248 | /* Outside any interesting row or column? */ |
1249 | if (y < top_y || y >= bottom_y || x < left_x || x >= right_x) | |
9173a8fb | 1250 | return ON_NOTHING; |
b0228ace | 1251 | |
880e6158 | 1252 | /* On vertical window divider (which prevails horizontal |
f224e500 | 1253 | dividers)? */ |
880e6158 MR |
1254 | if (!WINDOW_RIGHTMOST_P (w) |
1255 | && WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
1256 | && x >= right_x - WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
1257 | && x <= right_x) | |
1258 | return ON_RIGHT_DIVIDER; | |
1259 | /* On the horizontal window divider? */ | |
1260 | else if (WINDOW_BOTTOM_DIVIDER_WIDTH (w) | |
1261 | && y >= (bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w)) | |
1262 | && y <= bottom_y) | |
1263 | return ON_BOTTOM_DIVIDER; | |
1264 | /* On the mode or header line? */ | |
1265 | else if ((WINDOW_WANTS_MODELINE_P (w) | |
1266 | && y >= (bottom_y | |
1267 | - CURRENT_MODE_LINE_HEIGHT (w) | |
1268 | - WINDOW_BOTTOM_DIVIDER_WIDTH (w)) | |
1269 | && y <= bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w) | |
1270 | && (part = ON_MODE_LINE)) | |
1271 | || (WINDOW_WANTS_HEADER_LINE_P (w) | |
1272 | && y < top_y + CURRENT_HEADER_LINE_HEIGHT (w) | |
1273 | && (part = ON_HEADER_LINE))) | |
c7b08b0d MR |
1274 | { |
1275 | /* If it's under/over the scroll bar portion of the mode/header | |
1276 | line, say it's on the vertical line. That's to be able to | |
1277 | resize windows horizontally in case we're using toolkit scroll | |
1278 | bars. Note: If scrollbars are on the left, the window that | |
1279 | must be eventually resized is that on the left of WINDOW. */ | |
1280 | if ((WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) | |
1281 | && !WINDOW_LEFTMOST_P (w) | |
1282 | && eabs (x - left_x) < grabbable_width) | |
1283 | || (!WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) | |
1284 | && !WINDOW_RIGHTMOST_P (w) | |
1285 | && eabs (x - right_x) < grabbable_width)) | |
1286 | return ON_VERTICAL_BORDER; | |
1287 | else | |
1288 | return part; | |
1289 | } | |
1290 | ||
466539bc EZ |
1291 | /* In what's below, we subtract 1 when computing right_x because we |
1292 | want the rightmost pixel, which is given by left_pixel+width-1. */ | |
5500c422 GM |
1293 | if (w->pseudo_window_p) |
1294 | { | |
1295 | left_x = 0; | |
880e6158 | 1296 | right_x = WINDOW_PIXEL_WIDTH (w) - 1; |
5500c422 GM |
1297 | } |
1298 | else | |
1299 | { | |
949cf20f KS |
1300 | left_x = WINDOW_BOX_LEFT_EDGE_X (w); |
1301 | right_x = WINDOW_BOX_RIGHT_EDGE_X (w) - 1; | |
5500c422 | 1302 | } |
37962e60 | 1303 | |
949cf20f | 1304 | /* Outside any interesting column? */ |
9173a8fb CY |
1305 | if (x < left_x || x > right_x) |
1306 | return ON_SCROLL_BAR; | |
949cf20f KS |
1307 | |
1308 | lmargin_width = window_box_width (w, LEFT_MARGIN_AREA); | |
1309 | rmargin_width = window_box_width (w, RIGHT_MARGIN_AREA); | |
79fd290e | 1310 | |
949cf20f KS |
1311 | text_left = window_box_left (w, TEXT_AREA); |
1312 | text_right = text_left + window_box_width (w, TEXT_AREA); | |
1313 | ||
1314 | if (FRAME_WINDOW_P (f)) | |
fbad6f9a | 1315 | { |
447e9da0 | 1316 | if (!w->pseudo_window_p |
949cf20f | 1317 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w) |
447e9da0 | 1318 | && !WINDOW_RIGHTMOST_P (w) |
9173a8fb CY |
1319 | && (eabs (x - right_x) < grabbable_width)) |
1320 | return ON_VERTICAL_BORDER; | |
fbad6f9a | 1321 | } |
9173a8fb CY |
1322 | /* Need to say "x > right_x" rather than >=, since on character |
1323 | terminals, the vertical line's x coordinate is right_x. */ | |
1324 | else if (!w->pseudo_window_p | |
1325 | && !WINDOW_RIGHTMOST_P (w) | |
f224e500 PE |
1326 | /* Why check ux if we are not the rightmost window? Also |
1327 | shouldn't a pseudo window always be rightmost? */ | |
9173a8fb CY |
1328 | && x > right_x - ux) |
1329 | return ON_VERTICAL_BORDER; | |
1330 | ||
1331 | if (x < text_left) | |
949cf20f KS |
1332 | { |
1333 | if (lmargin_width > 0 | |
1334 | && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
9173a8fb CY |
1335 | ? (x >= left_x + WINDOW_LEFT_FRINGE_WIDTH (w)) |
1336 | : (x < left_x + lmargin_width))) | |
1337 | return ON_LEFT_MARGIN; | |
1338 | ||
949cf20f KS |
1339 | return ON_LEFT_FRINGE; |
1340 | } | |
1341 | ||
9173a8fb | 1342 | if (x >= text_right) |
949cf20f KS |
1343 | { |
1344 | if (rmargin_width > 0 | |
1345 | && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
9173a8fb CY |
1346 | ? (x < right_x - WINDOW_RIGHT_FRINGE_WIDTH (w)) |
1347 | : (x >= right_x - rmargin_width))) | |
1348 | return ON_RIGHT_MARGIN; | |
1349 | ||
949cf20f KS |
1350 | return ON_RIGHT_FRINGE; |
1351 | } | |
1352 | ||
1353 | /* Everything special ruled out - must be on text area */ | |
949cf20f | 1354 | return ON_TEXT; |
d5783c40 JB |
1355 | } |
1356 | ||
9173a8fb CY |
1357 | /* Take X is the frame-relative pixel x-coordinate, and return the |
1358 | x-coordinate relative to part PART of window W. */ | |
1359 | int | |
1360 | window_relative_x_coord (struct window *w, enum window_part part, int x) | |
1361 | { | |
1362 | int left_x = (w->pseudo_window_p) ? 0 : WINDOW_BOX_LEFT_EDGE_X (w); | |
1363 | ||
1364 | switch (part) | |
1365 | { | |
1366 | case ON_TEXT: | |
1367 | return x - window_box_left (w, TEXT_AREA); | |
1368 | ||
1369 | case ON_LEFT_FRINGE: | |
1370 | return x - left_x; | |
1371 | ||
1372 | case ON_RIGHT_FRINGE: | |
1373 | return x - left_x - WINDOW_LEFT_FRINGE_WIDTH (w); | |
1374 | ||
1375 | case ON_LEFT_MARGIN: | |
1376 | return (x - left_x | |
1377 | - ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)) | |
1378 | ? WINDOW_LEFT_FRINGE_WIDTH (w) : 0)); | |
1379 | ||
1380 | case ON_RIGHT_MARGIN: | |
1381 | return (x + 1 | |
1382 | - ((w->pseudo_window_p) | |
880e6158 | 1383 | ? WINDOW_PIXEL_WIDTH (w) |
9173a8fb CY |
1384 | : WINDOW_BOX_RIGHT_EDGE_X (w)) |
1385 | + window_box_width (w, RIGHT_MARGIN_AREA) | |
1386 | + ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)) | |
1387 | ? WINDOW_RIGHT_FRINGE_WIDTH (w) : 0)); | |
1388 | } | |
1389 | ||
1390 | /* ON_SCROLL_BAR, ON_NOTHING, and ON_VERTICAL_BORDER: */ | |
1391 | return 0; | |
1392 | } | |
1393 | ||
b0228ace | 1394 | |
d5783c40 | 1395 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, |
fdb82f93 PJ |
1396 | Scoordinates_in_window_p, 2, 2, 0, |
1397 | doc: /* Return non-nil if COORDINATES are in WINDOW. | |
52162052 | 1398 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 PJ |
1399 | COORDINATES is a cons of the form (X . Y), X and Y being distances |
1400 | measured in characters from the upper-left corner of the frame. | |
23fe745a | 1401 | \(0 . 0) denotes the character in the upper left corner of the |
fdb82f93 PJ |
1402 | frame. |
1403 | If COORDINATES are in the text portion of WINDOW, | |
1404 | the coordinates relative to the window are returned. | |
1405 | If they are in the mode line of WINDOW, `mode-line' is returned. | |
1406 | If they are in the top mode line of WINDOW, `header-line' is returned. | |
81d189fd KS |
1407 | If they are in the left fringe of WINDOW, `left-fringe' is returned. |
1408 | If they are in the right fringe of WINDOW, `right-fringe' is returned. | |
fdb82f93 | 1409 | If they are on the border between WINDOW and its right sibling, |
49b996e7 GM |
1410 | `vertical-line' is returned. |
1411 | If they are in the windows's left or right marginal areas, `left-margin'\n\ | |
1412 | or `right-margin' is returned. */) | |
5842a27b | 1413 | (register Lisp_Object coordinates, Lisp_Object window) |
d5783c40 | 1414 | { |
5500c422 GM |
1415 | struct window *w; |
1416 | struct frame *f; | |
d5783c40 | 1417 | int x, y; |
5500c422 | 1418 | Lisp_Object lx, ly; |
d5783c40 | 1419 | |
52162052 | 1420 | w = decode_live_window (window); |
d3d50620 | 1421 | f = XFRAME (w->frame); |
b7826503 | 1422 | CHECK_CONS (coordinates); |
5500c422 GM |
1423 | lx = Fcar (coordinates); |
1424 | ly = Fcdr (coordinates); | |
b7826503 PJ |
1425 | CHECK_NUMBER_OR_FLOAT (lx); |
1426 | CHECK_NUMBER_OR_FLOAT (ly); | |
81159bb9 RS |
1427 | x = FRAME_PIXEL_X_FROM_CANON_X (f, lx) + FRAME_INTERNAL_BORDER_WIDTH (f); |
1428 | y = FRAME_PIXEL_Y_FROM_CANON_Y (f, ly) + FRAME_INTERNAL_BORDER_WIDTH (f); | |
5500c422 | 1429 | |
9173a8fb | 1430 | switch (coordinates_in_window (w, x, y)) |
d5783c40 | 1431 | { |
7442878f | 1432 | case ON_NOTHING: |
d5783c40 JB |
1433 | return Qnil; |
1434 | ||
7442878f | 1435 | case ON_TEXT: |
9173a8fb CY |
1436 | /* Convert X and Y to window relative pixel coordinates, and |
1437 | return the canonical char units. */ | |
1438 | x -= window_box_left (w, TEXT_AREA); | |
1439 | y -= WINDOW_TOP_EDGE_Y (w); | |
949cf20f KS |
1440 | return Fcons (FRAME_CANON_X_FROM_PIXEL_X (f, x), |
1441 | FRAME_CANON_Y_FROM_PIXEL_Y (f, y)); | |
d5783c40 | 1442 | |
7442878f | 1443 | case ON_MODE_LINE: |
d5783c40 | 1444 | return Qmode_line; |
37962e60 | 1445 | |
7442878f | 1446 | case ON_VERTICAL_BORDER: |
e5d77022 | 1447 | return Qvertical_line; |
d5783c40 | 1448 | |
7442878f | 1449 | case ON_HEADER_LINE: |
045dee35 | 1450 | return Qheader_line; |
5500c422 | 1451 | |
7442878f GM |
1452 | case ON_LEFT_FRINGE: |
1453 | return Qleft_fringe; | |
177c0ea7 | 1454 | |
7442878f GM |
1455 | case ON_RIGHT_FRINGE: |
1456 | return Qright_fringe; | |
fbad6f9a | 1457 | |
49b996e7 GM |
1458 | case ON_LEFT_MARGIN: |
1459 | return Qleft_margin; | |
177c0ea7 | 1460 | |
49b996e7 GM |
1461 | case ON_RIGHT_MARGIN: |
1462 | return Qright_margin; | |
1463 | ||
6487f669 RS |
1464 | case ON_SCROLL_BAR: |
1465 | /* Historically we are supposed to return nil in this case. */ | |
1466 | return Qnil; | |
1467 | ||
880e6158 MR |
1468 | case ON_RIGHT_DIVIDER: |
1469 | return Qright_divider; | |
1470 | ||
1471 | case ON_BOTTOM_DIVIDER: | |
1472 | return Qbottom_divider; | |
1473 | ||
d5783c40 | 1474 | default: |
1088b922 | 1475 | emacs_abort (); |
d5783c40 JB |
1476 | } |
1477 | } | |
1478 | ||
67492200 GM |
1479 | |
1480 | /* Callback for foreach_window, used in window_from_coordinates. | |
f95464e4 GM |
1481 | Check if window W contains coordinates specified by USER_DATA which |
1482 | is actually a pointer to a struct check_window_data CW. | |
1483 | ||
1484 | Check if window W contains coordinates *CW->x and *CW->y. If it | |
1485 | does, return W in *CW->window, as Lisp_Object, and return in | |
5372262f | 1486 | *CW->part the part of the window under coordinates *X,*Y. Return |
f95464e4 GM |
1487 | zero from this function to stop iterating over windows. */ |
1488 | ||
1489 | struct check_window_data | |
1490 | { | |
1491 | Lisp_Object *window; | |
9173a8fb | 1492 | int x, y; |
341f3858 | 1493 | enum window_part *part; |
f95464e4 | 1494 | }; |
67492200 GM |
1495 | |
1496 | static int | |
971de7fb | 1497 | check_window_containing (struct window *w, void *user_data) |
67492200 | 1498 | { |
7d652d97 | 1499 | struct check_window_data *cw = user_data; |
7442878f GM |
1500 | enum window_part found; |
1501 | int continue_p = 1; | |
67492200 | 1502 | |
f95464e4 | 1503 | found = coordinates_in_window (w, cw->x, cw->y); |
7442878f | 1504 | if (found != ON_NOTHING) |
67492200 | 1505 | { |
341f3858 | 1506 | *cw->part = found; |
f95464e4 | 1507 | XSETWINDOW (*cw->window, w); |
7442878f | 1508 | continue_p = 0; |
67492200 | 1509 | } |
177c0ea7 | 1510 | |
7442878f | 1511 | return continue_p; |
67492200 GM |
1512 | } |
1513 | ||
1514 | ||
5500c422 | 1515 | /* Find the window containing frame-relative pixel position X/Y and |
949cf20f KS |
1516 | return it as a Lisp_Object. |
1517 | ||
1518 | If X, Y is on one of the window's special `window_part' elements, | |
9173a8fb | 1519 | set *PART to the id of that element. |
949cf20f | 1520 | |
341f3858 | 1521 | If there is no window under X, Y return nil and leave *PART |
67492200 GM |
1522 | unmodified. TOOL_BAR_P non-zero means detect tool-bar windows. |
1523 | ||
1524 | This function was previously implemented with a loop cycling over | |
1525 | windows with Fnext_window, and starting with the frame's selected | |
1526 | window. It turned out that this doesn't work with an | |
1527 | implementation of next_window using Vwindow_list, because | |
1528 | FRAME_SELECTED_WINDOW (F) is not always contained in the window | |
1529 | tree of F when this function is called asynchronously from | |
1530 | note_mouse_highlight. The original loop didn't terminate in this | |
1531 | case. */ | |
5500c422 | 1532 | |
7ab12479 | 1533 | Lisp_Object |
9173a8fb | 1534 | window_from_coordinates (struct frame *f, int x, int y, |
748fa866 | 1535 | enum window_part *part, bool tool_bar_p) |
7ab12479 | 1536 | { |
67492200 | 1537 | Lisp_Object window; |
f95464e4 | 1538 | struct check_window_data cw; |
341f3858 KS |
1539 | enum window_part dummy; |
1540 | ||
1541 | if (part == 0) | |
1542 | part = &dummy; | |
5500c422 | 1543 | |
67492200 | 1544 | window = Qnil; |
9173a8fb | 1545 | cw.window = &window, cw.x = x, cw.y = y; cw.part = part; |
f95464e4 | 1546 | foreach_window (f, check_window_containing, &cw); |
177c0ea7 | 1547 | |
742516e0 | 1548 | #if defined (HAVE_WINDOW_SYSTEM) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
67492200 GM |
1549 | /* If not found above, see if it's in the tool bar window, if a tool |
1550 | bar exists. */ | |
1551 | if (NILP (window) | |
1552 | && tool_bar_p | |
e69b0960 DA |
1553 | && WINDOWP (f->tool_bar_window) |
1554 | && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)) > 0 | |
1555 | && (coordinates_in_window (XWINDOW (f->tool_bar_window), x, y) | |
7442878f | 1556 | != ON_NOTHING)) |
5500c422 | 1557 | { |
341f3858 | 1558 | *part = ON_TEXT; |
e69b0960 | 1559 | window = f->tool_bar_window; |
5500c422 | 1560 | } |
742516e0 | 1561 | #endif |
37962e60 | 1562 | |
67492200 | 1563 | return window; |
7ab12479 JB |
1564 | } |
1565 | ||
ab17c3f2 | 1566 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
fdb82f93 | 1567 | doc: /* Return window containing coordinates X and Y on FRAME. |
496e208e | 1568 | FRAME must be a live frame and defaults to the selected one. |
fdb82f93 PJ |
1569 | The top left corner of the frame is considered to be row 0, |
1570 | column 0. */) | |
5842a27b | 1571 | (Lisp_Object x, Lisp_Object y, Lisp_Object frame) |
7ab12479 | 1572 | { |
d9f07150 | 1573 | struct frame *f = decode_live_frame (frame); |
7ab12479 | 1574 | |
5500c422 | 1575 | /* Check that arguments are integers or floats. */ |
b7826503 PJ |
1576 | CHECK_NUMBER_OR_FLOAT (x); |
1577 | CHECK_NUMBER_OR_FLOAT (y); | |
5500c422 | 1578 | |
177c0ea7 | 1579 | return window_from_coordinates (f, |
2c77cf3b RS |
1580 | (FRAME_PIXEL_X_FROM_CANON_X (f, x) |
1581 | + FRAME_INTERNAL_BORDER_WIDTH (f)), | |
1582 | (FRAME_PIXEL_Y_FROM_CANON_Y (f, y) | |
1583 | + FRAME_INTERNAL_BORDER_WIDTH (f)), | |
9173a8fb | 1584 | 0, 0); |
7ab12479 JB |
1585 | } |
1586 | ||
1587 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
fdb82f93 | 1588 | doc: /* Return current value of point in WINDOW. |
496e208e | 1589 | WINDOW must be a live window and defaults to the selected one. |
c85322d0 | 1590 | |
5481664a MR |
1591 | For a nonselected window, this is the value point would have if that |
1592 | window were selected. | |
1593 | ||
1594 | Note that, when WINDOW is selected, the value returned is the same as | |
1595 | that returned by `point' for WINDOW's buffer. It would be more strictly | |
9fc9a531 | 1596 | correct to return the top-level value of `point', outside of any |
5481664a | 1597 | `save-excursion' forms. But that is hard to define. */) |
5842a27b | 1598 | (Lisp_Object window) |
7ab12479 | 1599 | { |
52162052 | 1600 | register struct window *w = decode_live_window (window); |
7ab12479 | 1601 | |
5481664a | 1602 | if (w == XWINDOW (selected_window)) |
e74aeda8 | 1603 | return make_number (BUF_PT (XBUFFER (w->contents))); |
5481664a MR |
1604 | else |
1605 | return Fmarker_position (w->pointm); | |
7ab12479 JB |
1606 | } |
1607 | ||
1608 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
fdb82f93 | 1609 | doc: /* Return position at which display currently starts in WINDOW. |
496e208e | 1610 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 | 1611 | This is updated by redisplay or by calling `set-window-start'. */) |
5842a27b | 1612 | (Lisp_Object window) |
7ab12479 | 1613 | { |
52162052 | 1614 | return Fmarker_position (decode_live_window (window)->start); |
7ab12479 JB |
1615 | } |
1616 | ||
8646118f RS |
1617 | /* This is text temporarily removed from the doc string below. |
1618 | ||
fdb82f93 PJ |
1619 | This function returns nil if the position is not currently known. |
1620 | That happens when redisplay is preempted and doesn't finish. | |
1621 | If in that case you want to compute where the end of the window would | |
1622 | have been if redisplay had finished, do this: | |
1623 | (save-excursion | |
1624 | (goto-char (window-start window)) | |
1625 | (vertical-motion (1- (window-height window)) window) | |
8646118f RS |
1626 | (point))") */ |
1627 | ||
478292ed | 1628 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 2, 0, |
fdb82f93 | 1629 | doc: /* Return position at which display currently ends in WINDOW. |
496e208e | 1630 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 PJ |
1631 | This is updated by redisplay, when it runs to completion. |
1632 | Simply changing the buffer text or setting `window-start' | |
1633 | does not update this value. | |
87e68db4 | 1634 | Return nil if there is no recorded value. (This can happen if the |
a0a37a6f | 1635 | last redisplay of WINDOW was preempted, and did not finish.) |
fdb82f93 PJ |
1636 | If UPDATE is non-nil, compute the up-to-date position |
1637 | if it isn't already recorded. */) | |
5842a27b | 1638 | (Lisp_Object window, Lisp_Object update) |
7ab12479 JB |
1639 | { |
1640 | Lisp_Object value; | |
52162052 | 1641 | struct window *w = decode_live_window (window); |
5a41ab94 | 1642 | Lisp_Object buf; |
31790df3 | 1643 | struct buffer *b; |
5a41ab94 | 1644 | |
e74aeda8 | 1645 | buf = w->contents; |
b7826503 | 1646 | CHECK_BUFFER (buf); |
b3a10345 | 1647 | b = XBUFFER (buf); |
5a41ab94 | 1648 | |
478292ed | 1649 | if (! NILP (update) |
fcc1fe85 EZ |
1650 | && (windows_or_buffers_changed |
1651 | || !w->window_end_valid | |
1652 | || b->clip_changed | |
1653 | || b->prevent_redisplay_optimizations_p | |
170da1ec | 1654 | || window_outdated (w)) |
41791a20 | 1655 | && !noninteractive) |
478292ed | 1656 | { |
cbc099e5 GM |
1657 | struct text_pos startp; |
1658 | struct it it; | |
b3a10345 | 1659 | struct buffer *old_buffer = NULL; |
57b3e30b | 1660 | void *itdata = NULL; |
b3a10345 KS |
1661 | |
1662 | /* Cannot use Fvertical_motion because that function doesn't | |
1663 | cope with variable-height lines. */ | |
1664 | if (b != current_buffer) | |
1665 | { | |
1666 | old_buffer = current_buffer; | |
1667 | set_buffer_internal (b); | |
1668 | } | |
2d6d9df0 GM |
1669 | |
1670 | /* In case W->start is out of the range, use something | |
cb795ec4 | 1671 | reasonable. This situation occurred when loading a file with |
2d6d9df0 GM |
1672 | `-l' containing a call to `rmail' with subsequent other |
1673 | commands. At the end, W->start happened to be BEG, while | |
cbc099e5 | 1674 | rmail had already narrowed the buffer. */ |
cf91889a | 1675 | CLIP_TEXT_POS_FROM_MARKER (startp, w->start); |
cbc099e5 | 1676 | |
57b3e30b | 1677 | itdata = bidi_shelve_cache (); |
cbc099e5 GM |
1678 | start_display (&it, w, startp); |
1679 | move_it_vertically (&it, window_box_height (w)); | |
c3c45f65 GM |
1680 | if (it.current_y < it.last_visible_y) |
1681 | move_it_past_eol (&it); | |
cbc099e5 | 1682 | value = make_number (IT_CHARPOS (it)); |
35928349 | 1683 | bidi_unshelve_cache (itdata, 0); |
177c0ea7 | 1684 | |
99593a9d GM |
1685 | if (old_buffer) |
1686 | set_buffer_internal (old_buffer); | |
478292ed RS |
1687 | } |
1688 | else | |
02455cb6 | 1689 | XSETINT (value, BUF_Z (b) - w->window_end_pos); |
7ab12479 JB |
1690 | |
1691 | return value; | |
1692 | } | |
1693 | ||
a7ca3326 | 1694 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, |
a0a37a6f | 1695 | doc: /* Make point value in WINDOW be at position POS in WINDOW's buffer. |
52162052 | 1696 | WINDOW must be a live window and defaults to the selected one. |
a0a37a6f | 1697 | Return POS. */) |
5842a27b | 1698 | (Lisp_Object window, Lisp_Object pos) |
7ab12479 | 1699 | { |
52162052 | 1700 | register struct window *w = decode_live_window (window); |
7ab12479 | 1701 | |
f74de345 | 1702 | /* Type of POS is checked by Fgoto_char or set_marker_restricted ... */ |
799417bd | 1703 | |
5481664a MR |
1704 | if (w == XWINDOW (selected_window)) |
1705 | { | |
e74aeda8 | 1706 | if (XBUFFER (w->contents) == current_buffer) |
5481664a MR |
1707 | Fgoto_char (pos); |
1708 | else | |
1709 | { | |
1710 | struct buffer *old_buffer = current_buffer; | |
1711 | ||
f74de345 DA |
1712 | /* ... but here we want to catch type error before buffer change. */ |
1713 | CHECK_NUMBER_COERCE_MARKER (pos); | |
e74aeda8 | 1714 | set_buffer_internal (XBUFFER (w->contents)); |
5481664a MR |
1715 | Fgoto_char (pos); |
1716 | set_buffer_internal (old_buffer); | |
1717 | } | |
1718 | } | |
1719 | else | |
1720 | { | |
e74aeda8 | 1721 | set_marker_restricted (w->pointm, pos, w->contents); |
5481664a MR |
1722 | /* We have to make sure that redisplay updates the window to show |
1723 | the new value of point. */ | |
5961ad6c | 1724 | wset_redisplay (w); |
5481664a | 1725 | } |
177c0ea7 | 1726 | |
7ab12479 JB |
1727 | return pos; |
1728 | } | |
1729 | ||
1730 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
fdb82f93 | 1731 | doc: /* Make display in WINDOW start at position POS in WINDOW's buffer. |
52162052 MR |
1732 | WINDOW must be a live window and defaults to the selected one. Return |
1733 | POS. Optional third arg NOFORCE non-nil inhibits next redisplay from | |
d653c8cc | 1734 | overriding motion of point in order to display at this exact start. */) |
5842a27b | 1735 | (Lisp_Object window, Lisp_Object pos, Lisp_Object noforce) |
7ab12479 | 1736 | { |
52162052 | 1737 | register struct window *w = decode_live_window (window); |
7ab12479 | 1738 | |
e74aeda8 | 1739 | set_marker_restricted (w->start, pos, w->contents); |
f74de345 | 1740 | /* This is not right, but much easier than doing what is right. */ |
c98ff5dd | 1741 | w->start_at_line_beg = 0; |
265a9e55 | 1742 | if (NILP (noforce)) |
c98ff5dd DA |
1743 | w->force_start = 1; |
1744 | w->update_mode_line = 1; | |
72fdd473 MR |
1745 | /* Bug#15957. */ |
1746 | w->window_end_valid = 0; | |
5961ad6c | 1747 | wset_redisplay (w); |
ce7fae7d | 1748 | |
7ab12479 JB |
1749 | return pos; |
1750 | } | |
1751 | ||
496e208e MR |
1752 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, |
1753 | Spos_visible_in_window_p, 0, 3, 0, | |
1754 | doc: /* Return non-nil if position POS is currently on the frame in WINDOW. | |
52162052 MR |
1755 | WINDOW must be a live window and defaults to the selected one. |
1756 | ||
1757 | Return nil if that position is scrolled vertically out of view. If a | |
1758 | character is only partially visible, nil is returned, unless the | |
1759 | optional argument PARTIALLY is non-nil. If POS is only out of view | |
1760 | because of horizontal scrolling, return non-nil. If POS is t, it | |
1761 | specifies the position of the last visible glyph in WINDOW. POS | |
1762 | defaults to point in WINDOW; WINDOW defaults to the selected window. | |
496e208e MR |
1763 | |
1764 | If POS is visible, return t if PARTIALLY is nil; if PARTIALLY is non-nil, | |
ba59bd80 | 1765 | the return value is a list of 2 or 6 elements (X Y [RTOP RBOT ROWH VPOS]), |
496e208e MR |
1766 | where X and Y are the pixel coordinates relative to the top left corner |
1767 | of the window. The remaining elements are omitted if the character after | |
1768 | POS is fully visible; otherwise, RTOP and RBOT are the number of pixels | |
ba59bd80 EZ |
1769 | off-window at the top and bottom of the screen line ("row") containing |
1770 | POS, ROWH is the visible height of that row, and VPOS is the row number | |
1771 | \(zero-based). */) | |
496e208e MR |
1772 | (Lisp_Object pos, Lisp_Object window, Lisp_Object partially) |
1773 | { | |
1774 | register struct window *w; | |
1775 | register EMACS_INT posint; | |
1776 | register struct buffer *buf; | |
1777 | struct text_pos top; | |
1778 | Lisp_Object in_window = Qnil; | |
1779 | int rtop, rbot, rowh, vpos, fully_p = 1; | |
1780 | int x, y; | |
1781 | ||
52162052 | 1782 | w = decode_live_window (window); |
e74aeda8 | 1783 | buf = XBUFFER (w->contents); |
d3d50620 | 1784 | SET_TEXT_POS_FROM_MARKER (top, w->start); |
496e208e MR |
1785 | |
1786 | if (EQ (pos, Qt)) | |
1787 | posint = -1; | |
1788 | else if (!NILP (pos)) | |
1789 | { | |
1790 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1791 | posint = XINT (pos); | |
1792 | } | |
1793 | else if (w == XWINDOW (selected_window)) | |
1794 | posint = PT; | |
1795 | else | |
4c1acb95 | 1796 | posint = marker_position (w->pointm); |
496e208e MR |
1797 | |
1798 | /* If position is above window start or outside buffer boundaries, | |
1799 | or if window start is out of range, position is not visible. */ | |
1800 | if ((EQ (pos, Qt) | |
1801 | || (posint >= CHARPOS (top) && posint <= BUF_ZV (buf))) | |
1802 | && CHARPOS (top) >= BUF_BEGV (buf) | |
1803 | && CHARPOS (top) <= BUF_ZV (buf) | |
1804 | && pos_visible_p (w, posint, &x, &y, &rtop, &rbot, &rowh, &vpos) | |
1805 | && (fully_p = !rtop && !rbot, (!NILP (partially) || fully_p))) | |
1806 | in_window = Qt; | |
1807 | ||
1808 | if (!NILP (in_window) && !NILP (partially)) | |
1809 | { | |
1810 | Lisp_Object part = Qnil; | |
1811 | if (!fully_p) | |
1479c557 | 1812 | part = list4i (rtop, rbot, rowh, vpos); |
496e208e MR |
1813 | in_window = Fcons (make_number (x), |
1814 | Fcons (make_number (y), part)); | |
1815 | } | |
1816 | ||
1817 | return in_window; | |
1818 | } | |
1819 | ||
1820 | DEFUN ("window-line-height", Fwindow_line_height, | |
1821 | Swindow_line_height, 0, 2, 0, | |
1822 | doc: /* Return height in pixels of text line LINE in window WINDOW. | |
52162052 | 1823 | WINDOW must be a live window and defaults to the selected one. |
496e208e MR |
1824 | |
1825 | Return height of current line if LINE is omitted or nil. Return height of | |
1826 | header or mode line if LINE is `header-line' or `mode-line'. | |
1827 | Otherwise, LINE is a text line number starting from 0. A negative number | |
1828 | counts from the end of the window. | |
1829 | ||
1830 | Value is a list (HEIGHT VPOS YPOS OFFBOT), where HEIGHT is the height | |
1831 | in pixels of the visible part of the line, VPOS and YPOS are the | |
1832 | vertical position in lines and pixels of the line, relative to the top | |
1833 | of the first text line, and OFFBOT is the number of off-window pixels at | |
1834 | the bottom of the text line. If there are off-window pixels at the top | |
1835 | of the (first) text line, YPOS is negative. | |
1836 | ||
1837 | Return nil if window display is not up-to-date. In that case, use | |
1838 | `pos-visible-in-window-p' to obtain the information. */) | |
1839 | (Lisp_Object line, Lisp_Object window) | |
1840 | { | |
1841 | register struct window *w; | |
1842 | register struct buffer *b; | |
1843 | struct glyph_row *row, *end_row; | |
d311d28c PE |
1844 | int max_y, crop, i; |
1845 | EMACS_INT n; | |
496e208e | 1846 | |
52162052 | 1847 | w = decode_live_window (window); |
496e208e MR |
1848 | |
1849 | if (noninteractive || w->pseudo_window_p) | |
1850 | return Qnil; | |
1851 | ||
e74aeda8 DA |
1852 | CHECK_BUFFER (w->contents); |
1853 | b = XBUFFER (w->contents); | |
496e208e MR |
1854 | |
1855 | /* Fail if current matrix is not up-to-date. */ | |
9d93ce29 | 1856 | if (!w->window_end_valid |
fcc1fe85 EZ |
1857 | || windows_or_buffers_changed |
1858 | || b->clip_changed | |
1859 | || b->prevent_redisplay_optimizations_p | |
170da1ec | 1860 | || window_outdated (w)) |
496e208e MR |
1861 | return Qnil; |
1862 | ||
1863 | if (NILP (line)) | |
1864 | { | |
1865 | i = w->cursor.vpos; | |
1866 | if (i < 0 || i >= w->current_matrix->nrows | |
1867 | || (row = MATRIX_ROW (w->current_matrix, i), !row->enabled_p)) | |
1868 | return Qnil; | |
1869 | max_y = window_text_bottom_y (w); | |
1870 | goto found_row; | |
1871 | } | |
1872 | ||
1873 | if (EQ (line, Qheader_line)) | |
1874 | { | |
1875 | if (!WINDOW_WANTS_HEADER_LINE_P (w)) | |
1876 | return Qnil; | |
1877 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
1479c557 | 1878 | return row->enabled_p ? list4i (row->height, 0, 0, 0) : Qnil; |
496e208e MR |
1879 | } |
1880 | ||
1881 | if (EQ (line, Qmode_line)) | |
1882 | { | |
1883 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
89bc0592 | 1884 | return (row->enabled_p ? |
1479c557 PE |
1885 | list4i (row->height, |
1886 | 0, /* not accurate */ | |
1887 | (WINDOW_HEADER_LINE_HEIGHT (w) | |
1888 | + window_text_bottom_y (w)), | |
1889 | 0) | |
89bc0592 | 1890 | : Qnil); |
496e208e MR |
1891 | } |
1892 | ||
1893 | CHECK_NUMBER (line); | |
1894 | n = XINT (line); | |
1895 | ||
1896 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1897 | end_row = MATRIX_BOTTOM_TEXT_ROW (w->current_matrix, w); | |
1898 | max_y = window_text_bottom_y (w); | |
1899 | i = 0; | |
1900 | ||
1901 | while ((n < 0 || i < n) | |
1902 | && row <= end_row && row->enabled_p | |
1903 | && row->y + row->height < max_y) | |
1904 | row++, i++; | |
1905 | ||
1906 | if (row > end_row || !row->enabled_p) | |
1907 | return Qnil; | |
1908 | ||
1909 | if (++n < 0) | |
1910 | { | |
1911 | if (-n > i) | |
1912 | return Qnil; | |
1913 | row += n; | |
1914 | i += n; | |
1915 | } | |
1916 | ||
1917 | found_row: | |
1918 | crop = max (0, (row->y + row->height) - max_y); | |
1479c557 | 1919 | return list4i (row->height + min (0, row->y) - crop, i, row->y, crop); |
496e208e | 1920 | } |
d653c8cc | 1921 | |
a7ca3326 | 1922 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, |
d653c8cc MR |
1923 | 0, 1, 0, |
1924 | doc: /* Return non-nil when WINDOW is dedicated to its buffer. | |
12bb3111 | 1925 | More precisely, return the value assigned by the last call of |
7bfac547 MR |
1926 | `set-window-dedicated-p' for WINDOW. Return nil if that function was |
1927 | never called with WINDOW as its argument, or the value set by that | |
52162052 MR |
1928 | function was internally reset since its last call. WINDOW must be a |
1929 | live window and defaults to the selected one. | |
7bfac547 MR |
1930 | |
1931 | When a window is dedicated to its buffer, `display-buffer' will refrain | |
1932 | from displaying another buffer in it. `get-lru-window' and | |
1933 | `get-largest-window' treat dedicated windows specially. | |
1934 | `delete-windows-on', `replace-buffer-in-windows', `quit-window' and | |
1935 | `kill-buffer' can delete a dedicated window and the containing frame. | |
1936 | ||
1937 | Functions like `set-window-buffer' may change the buffer displayed by a | |
1938 | window, unless that window is "strongly" dedicated to its buffer, that | |
1939 | is the value returned by `window-dedicated-p' is t. */) | |
5842a27b | 1940 | (Lisp_Object window) |
7ab12479 | 1941 | { |
52162052 | 1942 | return decode_live_window (window)->dedicated; |
7ab12479 JB |
1943 | } |
1944 | ||
d207b766 RS |
1945 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
1946 | Sset_window_dedicated_p, 2, 2, 0, | |
d653c8cc | 1947 | doc: /* Mark WINDOW as dedicated according to FLAG. |
496e208e MR |
1948 | WINDOW must be a live window and defaults to the selected one. FLAG |
1949 | non-nil means mark WINDOW as dedicated to its buffer. FLAG nil means | |
1950 | mark WINDOW as non-dedicated. Return FLAG. | |
d653c8cc | 1951 | |
7bfac547 MR |
1952 | When a window is dedicated to its buffer, `display-buffer' will refrain |
1953 | from displaying another buffer in it. `get-lru-window' and | |
1954 | `get-largest-window' treat dedicated windows specially. | |
496e208e MR |
1955 | `delete-windows-on', `replace-buffer-in-windows', `quit-window', |
1956 | `quit-restore-window' and `kill-buffer' can delete a dedicated window | |
1957 | and the containing frame. | |
7bfac547 MR |
1958 | |
1959 | As a special case, if FLAG is t, mark WINDOW as "strongly" dedicated to | |
1960 | its buffer. Functions like `set-window-buffer' may change the buffer | |
1961 | displayed by a window, unless that window is strongly dedicated to its | |
1962 | buffer. If and when `set-window-buffer' displays another buffer in a | |
496e208e | 1963 | window, it also makes sure that the window is no more dedicated. */) |
5842a27b | 1964 | (Lisp_Object window, Lisp_Object flag) |
7ab12479 | 1965 | { |
e8c17b81 PE |
1966 | wset_dedicated (decode_live_window (window), flag); |
1967 | return flag; | |
7ab12479 JB |
1968 | } |
1969 | ||
496e208e MR |
1970 | DEFUN ("window-prev-buffers", Fwindow_prev_buffers, Swindow_prev_buffers, |
1971 | 0, 1, 0, | |
1972 | doc: /* Return buffers previously shown in WINDOW. | |
1973 | WINDOW must be a live window and defaults to the selected one. | |
1974 | ||
94e0933e CY |
1975 | The return value is a list of elements (BUFFER WINDOW-START POS), |
1976 | where BUFFER is a buffer, WINDOW-START is the start position of the | |
1977 | window for that buffer, and POS is a window-specific point value. */) | |
496e208e MR |
1978 | (Lisp_Object window) |
1979 | { | |
52162052 | 1980 | return decode_live_window (window)->prev_buffers; |
496e208e MR |
1981 | } |
1982 | ||
1983 | DEFUN ("set-window-prev-buffers", Fset_window_prev_buffers, | |
1984 | Sset_window_prev_buffers, 2, 2, 0, | |
1985 | doc: /* Set WINDOW's previous buffers to PREV-BUFFERS. | |
94e0933e | 1986 | WINDOW must be a live window and defaults to the selected one. |
496e208e | 1987 | |
94e0933e CY |
1988 | PREV-BUFFERS should be a list of elements (BUFFER WINDOW-START POS), |
1989 | where BUFFER is a buffer, WINDOW-START is the start position of the | |
1990 | window for that buffer, and POS is a window-specific point value. */) | |
496e208e MR |
1991 | (Lisp_Object window, Lisp_Object prev_buffers) |
1992 | { | |
e8c17b81 PE |
1993 | wset_prev_buffers (decode_live_window (window), prev_buffers); |
1994 | return prev_buffers; | |
496e208e MR |
1995 | } |
1996 | ||
1997 | DEFUN ("window-next-buffers", Fwindow_next_buffers, Swindow_next_buffers, | |
1998 | 0, 1, 0, | |
1999 | doc: /* Return list of buffers recently re-shown in WINDOW. | |
2000 | WINDOW must be a live window and defaults to the selected one. */) | |
2001 | (Lisp_Object window) | |
2002 | { | |
52162052 | 2003 | return decode_live_window (window)->next_buffers; |
496e208e MR |
2004 | } |
2005 | ||
2006 | DEFUN ("set-window-next-buffers", Fset_window_next_buffers, | |
2007 | Sset_window_next_buffers, 2, 2, 0, | |
2008 | doc: /* Set WINDOW's next buffers to NEXT-BUFFERS. | |
94e0933e CY |
2009 | WINDOW must be a live window and defaults to the selected one. |
2010 | NEXT-BUFFERS should be a list of buffers. */) | |
496e208e MR |
2011 | (Lisp_Object window, Lisp_Object next_buffers) |
2012 | { | |
e8c17b81 PE |
2013 | wset_next_buffers (decode_live_window (window), next_buffers); |
2014 | return next_buffers; | |
496e208e | 2015 | } |
d653c8cc | 2016 | |
cfbb2395 JB |
2017 | DEFUN ("window-parameters", Fwindow_parameters, Swindow_parameters, |
2018 | 0, 1, 0, | |
d653c8cc | 2019 | doc: /* Return the parameters of WINDOW and their values. |
52162052 MR |
2020 | WINDOW must be a valid window and defaults to the selected one. The |
2021 | return value is a list of elements of the form (PARAMETER . VALUE). */) | |
5842a27b | 2022 | (Lisp_Object window) |
cfbb2395 | 2023 | { |
52162052 | 2024 | return Fcopy_alist (decode_valid_window (window)->window_parameters); |
cfbb2395 JB |
2025 | } |
2026 | ||
2027 | DEFUN ("window-parameter", Fwindow_parameter, Swindow_parameter, | |
2028 | 2, 2, 0, | |
d653c8cc | 2029 | doc: /* Return WINDOW's value for PARAMETER. |
a8c729af | 2030 | WINDOW can be any window and defaults to the selected one. */) |
5842a27b | 2031 | (Lisp_Object window, Lisp_Object parameter) |
cfbb2395 | 2032 | { |
927abf37 JB |
2033 | Lisp_Object result; |
2034 | ||
a8c729af | 2035 | result = Fassq (parameter, decode_any_window (window)->window_parameters); |
927abf37 | 2036 | return CDR_SAFE (result); |
cfbb2395 JB |
2037 | } |
2038 | ||
cfbb2395 JB |
2039 | DEFUN ("set-window-parameter", Fset_window_parameter, |
2040 | Sset_window_parameter, 3, 3, 0, | |
d653c8cc | 2041 | doc: /* Set WINDOW's value of PARAMETER to VALUE. |
a8c729af | 2042 | WINDOW can be any window and defaults to the selected one. |
52162052 | 2043 | Return VALUE. */) |
5842a27b | 2044 | (Lisp_Object window, Lisp_Object parameter, Lisp_Object value) |
cfbb2395 | 2045 | { |
a8c729af | 2046 | register struct window *w = decode_any_window (window); |
cfbb2395 JB |
2047 | Lisp_Object old_alist_elt; |
2048 | ||
d3d50620 | 2049 | old_alist_elt = Fassq (parameter, w->window_parameters); |
12bb3111 | 2050 | if (NILP (old_alist_elt)) |
e8c17b81 PE |
2051 | wset_window_parameters |
2052 | (w, Fcons (Fcons (parameter, value), w->window_parameters)); | |
cfbb2395 JB |
2053 | else |
2054 | Fsetcdr (old_alist_elt, value); | |
927abf37 | 2055 | return value; |
cfbb2395 JB |
2056 | } |
2057 | ||
7ab12479 JB |
2058 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, |
2059 | 0, 1, 0, | |
c85322d0 | 2060 | doc: /* Return the display-table that WINDOW is using. |
52162052 | 2061 | WINDOW must be a live window and defaults to the selected one. */) |
5842a27b | 2062 | (Lisp_Object window) |
7ab12479 | 2063 | { |
52162052 | 2064 | return decode_live_window (window)->display_table; |
7ab12479 JB |
2065 | } |
2066 | ||
5500c422 GM |
2067 | /* Get the display table for use on window W. This is either W's |
2068 | display table or W's buffer's display table. Ignore the specified | |
2069 | tables if they are not valid; if no valid table is specified, | |
2070 | return 0. */ | |
7ab12479 | 2071 | |
319315f1 | 2072 | struct Lisp_Char_Table * |
971de7fb | 2073 | window_display_table (struct window *w) |
7ab12479 | 2074 | { |
c756cdbe GM |
2075 | struct Lisp_Char_Table *dp = NULL; |
2076 | ||
d3d50620 DA |
2077 | if (DISP_TABLE_P (w->display_table)) |
2078 | dp = XCHAR_TABLE (w->display_table); | |
e74aeda8 | 2079 | else if (BUFFERP (w->contents)) |
c756cdbe | 2080 | { |
e74aeda8 | 2081 | struct buffer *b = XBUFFER (w->contents); |
177c0ea7 | 2082 | |
4b4deea2 TT |
2083 | if (DISP_TABLE_P (BVAR (b, display_table))) |
2084 | dp = XCHAR_TABLE (BVAR (b, display_table)); | |
c756cdbe GM |
2085 | else if (DISP_TABLE_P (Vstandard_display_table)) |
2086 | dp = XCHAR_TABLE (Vstandard_display_table); | |
2087 | } | |
171d003c | 2088 | |
c756cdbe | 2089 | return dp; |
7ab12479 JB |
2090 | } |
2091 | ||
3a2712f9 | 2092 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
52162052 MR |
2093 | doc: /* Set WINDOW's display-table to TABLE. |
2094 | WINDOW must be a live window and defaults to the selected one. */) | |
5842a27b | 2095 | (register Lisp_Object window, Lisp_Object table) |
7ab12479 | 2096 | { |
e8c17b81 PE |
2097 | wset_display_table (decode_live_window (window), table); |
2098 | return table; | |
7ab12479 JB |
2099 | } |
2100 | \f | |
562dd5e9 | 2101 | /* Record info on buffer window W is displaying |
7ab12479 | 2102 | when it is about to cease to display that buffer. */ |
dfcf069d | 2103 | static void |
971de7fb | 2104 | unshow_buffer (register struct window *w) |
7ab12479 | 2105 | { |
e74aeda8 DA |
2106 | Lisp_Object buf = w->contents; |
2107 | struct buffer *b = XBUFFER (buf); | |
7ab12479 | 2108 | |
e74aeda8 | 2109 | eassert (b == XMARKER (w->pointm)->buffer); |
7ab12479 | 2110 | |
573f41ab | 2111 | #if 0 |
7ab12479 | 2112 | if (w == XWINDOW (selected_window) |
e74aeda8 | 2113 | || ! EQ (buf, XWINDOW (selected_window)->contents)) |
7ab12479 JB |
2114 | /* Do this except when the selected window's buffer |
2115 | is being removed from some other window. */ | |
573f41ab RS |
2116 | #endif |
2117 | /* last_window_start records the start position that this buffer | |
2118 | had in the last window to be disconnected from it. | |
2119 | Now that this statement is unconditional, | |
2120 | it is possible for the buffer to be displayed in the | |
2121 | selected window, while last_window_start reflects another | |
2122 | window which was recently showing the same buffer. | |
2123 | Some people might say that might be a good thing. Let's see. */ | |
d3d50620 | 2124 | b->last_window_start = marker_position (w->start); |
7ab12479 JB |
2125 | |
2126 | /* Point in the selected window's buffer | |
2127 | is actually stored in that buffer, and the window's pointm isn't used. | |
2128 | So don't clobber point in that buffer. */ | |
e74aeda8 | 2129 | if (! EQ (buf, XWINDOW (selected_window)->contents) |
c4b6914d MR |
2130 | /* Don't clobber point in current buffer either (this could be |
2131 | useful in connection with bug#12208). | |
2132 | && XBUFFER (buf) != current_buffer */ | |
719eaeb1 | 2133 | /* This line helps to fix Horsley's testbug.el bug. */ |
4b4deea2 TT |
2134 | && !(WINDOWP (BVAR (b, last_selected_window)) |
2135 | && w != XWINDOW (BVAR (b, last_selected_window)) | |
e74aeda8 | 2136 | && EQ (buf, XWINDOW (BVAR (b, last_selected_window))->contents))) |
b73ea88e RS |
2137 | temp_set_point_both (b, |
2138 | clip_to_bounds (BUF_BEGV (b), | |
4c1acb95 | 2139 | marker_position (w->pointm), |
b73ea88e RS |
2140 | BUF_ZV (b)), |
2141 | clip_to_bounds (BUF_BEGV_BYTE (b), | |
d3d50620 | 2142 | marker_byte_position (w->pointm), |
b73ea88e | 2143 | BUF_ZV_BYTE (b))); |
177c0ea7 | 2144 | |
4b4deea2 TT |
2145 | if (WINDOWP (BVAR (b, last_selected_window)) |
2146 | && w == XWINDOW (BVAR (b, last_selected_window))) | |
39eb03f1 | 2147 | bset_last_selected_window (b, Qnil); |
7ab12479 JB |
2148 | } |
2149 | ||
1a13852e MR |
2150 | /* Put NEW into the window structure in place of OLD. SETFLAG zero |
2151 | means change window structure only. Otherwise store geometry and | |
2152 | other settings as well. */ | |
dfcf069d | 2153 | static void |
1a13852e | 2154 | replace_window (Lisp_Object old, Lisp_Object new, int setflag) |
7ab12479 JB |
2155 | { |
2156 | register Lisp_Object tem; | |
1a13852e | 2157 | register struct window *o = XWINDOW (old), *n = XWINDOW (new); |
7ab12479 | 2158 | |
1a13852e MR |
2159 | /* If OLD is its frame's root window, then NEW is the new |
2160 | root window for that frame. */ | |
d3d50620 | 2161 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
f00af5b1 | 2162 | fset_root_window (XFRAME (o->frame), new); |
077288cf | 2163 | |
5f24fa51 DA |
2164 | if (setflag) |
2165 | { | |
880e6158 MR |
2166 | n->pixel_left = o->pixel_left; |
2167 | n->pixel_top = o->pixel_top; | |
2168 | n->pixel_width = o->pixel_width; | |
2169 | n->pixel_height = o->pixel_height; | |
5f24fa51 DA |
2170 | n->left_col = o->left_col; |
2171 | n->top_line = o->top_line; | |
2172 | n->total_cols = o->total_cols; | |
2173 | n->total_lines = o->total_lines; | |
e8c17b81 PE |
2174 | wset_normal_cols (n, o->normal_cols); |
2175 | wset_normal_cols (o, make_float (1.0)); | |
2176 | wset_normal_lines (n, o->normal_lines); | |
2177 | wset_normal_lines (o, make_float (1.0)); | |
1a13852e MR |
2178 | n->desired_matrix = n->current_matrix = 0; |
2179 | n->vscroll = 0; | |
2180 | memset (&n->cursor, 0, sizeof (n->cursor)); | |
1a13852e | 2181 | memset (&n->phys_cursor, 0, sizeof (n->phys_cursor)); |
c80016b3 | 2182 | n->last_cursor_vpos = 0; |
29bf4de4 DA |
2183 | #ifdef HAVE_WINDOW_SYSTEM |
2184 | n->phys_cursor_type = NO_CURSOR; | |
1a13852e | 2185 | n->phys_cursor_width = -1; |
29bf4de4 | 2186 | #endif |
1a13852e MR |
2187 | n->must_be_updated_p = 0; |
2188 | n->pseudo_window_p = 0; | |
02455cb6 DA |
2189 | n->window_end_vpos = 0; |
2190 | n->window_end_pos = 0; | |
9d93ce29 | 2191 | n->window_end_valid = 0; |
1a13852e MR |
2192 | } |
2193 | ||
d3d50620 | 2194 | tem = o->next; |
e8c17b81 | 2195 | wset_next (n, tem); |
265a9e55 | 2196 | if (!NILP (tem)) |
e8c17b81 | 2197 | wset_prev (XWINDOW (tem), new); |
7ab12479 | 2198 | |
d3d50620 | 2199 | tem = o->prev; |
e8c17b81 | 2200 | wset_prev (n, tem); |
265a9e55 | 2201 | if (!NILP (tem)) |
e8c17b81 | 2202 | wset_next (XWINDOW (tem), new); |
7ab12479 | 2203 | |
d3d50620 | 2204 | tem = o->parent; |
e8c17b81 | 2205 | wset_parent (n, tem); |
e74aeda8 DA |
2206 | if (!NILP (tem) && EQ (XWINDOW (tem)->contents, old)) |
2207 | wset_combination (XWINDOW (tem), XWINDOW (tem)->horizontal, new); | |
1a13852e MR |
2208 | } |
2209 | ||
2210 | /* If window WINDOW and its parent window are iso-combined, merge | |
2211 | WINDOW's children into those of its parent window and mark WINDOW as | |
2212 | deleted. */ | |
2213 | ||
2214 | static void | |
2215 | recombine_windows (Lisp_Object window) | |
2216 | { | |
2217 | struct window *w, *p, *c; | |
2218 | Lisp_Object parent, child; | |
748fa866 | 2219 | bool horflag; |
1a13852e MR |
2220 | |
2221 | w = XWINDOW (window); | |
d3d50620 DA |
2222 | parent = w->parent; |
2223 | if (!NILP (parent) && NILP (w->combination_limit)) | |
1a13852e MR |
2224 | { |
2225 | p = XWINDOW (parent); | |
e74aeda8 DA |
2226 | if (WINDOWP (p->contents) && WINDOWP (w->contents) |
2227 | && p->horizontal == w->horizontal) | |
1a13852e MR |
2228 | /* WINDOW and PARENT are both either a vertical or a horizontal |
2229 | combination. */ | |
2230 | { | |
e74aeda8 DA |
2231 | horflag = WINDOW_HORIZONTAL_COMBINATION_P (w); |
2232 | child = w->contents; | |
1a13852e MR |
2233 | c = XWINDOW (child); |
2234 | ||
2235 | /* Splice WINDOW's children into its parent's children and | |
2236 | assign new normal sizes. */ | |
d3d50620 | 2237 | if (NILP (w->prev)) |
e74aeda8 | 2238 | wset_combination (p, horflag, child); |
1a13852e MR |
2239 | else |
2240 | { | |
e8c17b81 PE |
2241 | wset_prev (c, w->prev); |
2242 | wset_next (XWINDOW (w->prev), child); | |
1a13852e MR |
2243 | } |
2244 | ||
2245 | while (c) | |
2246 | { | |
e8c17b81 | 2247 | wset_parent (c, parent); |
1a13852e MR |
2248 | |
2249 | if (horflag) | |
880e6158 MR |
2250 | wset_normal_cols |
2251 | (c, make_float ((double) c->pixel_width | |
2252 | / (double) p->pixel_width)); | |
1a13852e | 2253 | else |
880e6158 MR |
2254 | wset_normal_lines |
2255 | (c, make_float ((double) c->pixel_height | |
2256 | / (double) p->pixel_height)); | |
1a13852e | 2257 | |
d3d50620 | 2258 | if (NILP (c->next)) |
1a13852e | 2259 | { |
d3d50620 | 2260 | if (!NILP (w->next)) |
1a13852e | 2261 | { |
e8c17b81 PE |
2262 | wset_next (c, w->next); |
2263 | wset_prev (XWINDOW (c->next), child); | |
1a13852e MR |
2264 | } |
2265 | ||
2266 | c = 0; | |
2267 | } | |
2268 | else | |
2269 | { | |
d3d50620 | 2270 | child = c->next; |
1a13852e MR |
2271 | c = XWINDOW (child); |
2272 | } | |
2273 | } | |
7ab12479 | 2274 | |
1a13852e | 2275 | /* WINDOW can be deleted now. */ |
e74aeda8 | 2276 | wset_combination (w, 0, Qnil); |
1a13852e MR |
2277 | } |
2278 | } | |
7ab12479 | 2279 | } |
6198ccd0 MR |
2280 | |
2281 | /* If WINDOW can be deleted, delete it. */ | |
4475bec4 | 2282 | static void |
6198ccd0 MR |
2283 | delete_deletable_window (Lisp_Object window) |
2284 | { | |
2285 | if (!NILP (call1 (Qwindow_deletable_p, window))) | |
2286 | call1 (Qdelete_window, window); | |
2287 | } | |
1a13852e | 2288 | \f |
67492200 GM |
2289 | /*********************************************************************** |
2290 | Window List | |
2291 | ***********************************************************************/ | |
2292 | ||
f95464e4 GM |
2293 | /* Add window W to *USER_DATA. USER_DATA is actually a Lisp_Object |
2294 | pointer. This is a callback function for foreach_window, used in | |
496e208e | 2295 | the window_list function. */ |
67492200 GM |
2296 | |
2297 | static int | |
971de7fb | 2298 | add_window_to_list (struct window *w, void *user_data) |
67492200 | 2299 | { |
7d652d97 | 2300 | Lisp_Object *list = user_data; |
67492200 GM |
2301 | Lisp_Object window; |
2302 | XSETWINDOW (window, w); | |
212116d6 | 2303 | *list = Fcons (window, *list); |
67492200 GM |
2304 | return 1; |
2305 | } | |
2306 | ||
2307 | ||
2308 | /* Return a list of all windows, for use by next_window. If | |
2309 | Vwindow_list is a list, return that list. Otherwise, build a new | |
2310 | list, cache it in Vwindow_list, and return that. */ | |
2311 | ||
655ab9a3 | 2312 | Lisp_Object |
971de7fb | 2313 | window_list (void) |
67492200 GM |
2314 | { |
2315 | if (!CONSP (Vwindow_list)) | |
2316 | { | |
5b04e9f9 | 2317 | Lisp_Object tail, frame; |
212116d6 | 2318 | |
67492200 | 2319 | Vwindow_list = Qnil; |
5b04e9f9 | 2320 | FOR_EACH_FRAME (tail, frame) |
212116d6 GM |
2321 | { |
2322 | Lisp_Object args[2]; | |
2323 | ||
2324 | /* We are visiting windows in canonical order, and add | |
2325 | new windows at the front of args[1], which means we | |
2326 | have to reverse this list at the end. */ | |
2327 | args[1] = Qnil; | |
5b04e9f9 | 2328 | foreach_window (XFRAME (frame), add_window_to_list, &args[1]); |
212116d6 GM |
2329 | args[0] = Vwindow_list; |
2330 | args[1] = Fnreverse (args[1]); | |
2331 | Vwindow_list = Fnconc (2, args); | |
2332 | } | |
67492200 | 2333 | } |
177c0ea7 | 2334 | |
67492200 GM |
2335 | return Vwindow_list; |
2336 | } | |
2337 | ||
2338 | ||
118ea242 GM |
2339 | /* Value is non-zero if WINDOW satisfies the constraints given by |
2340 | OWINDOW, MINIBUF and ALL_FRAMES. | |
67492200 | 2341 | |
118ea242 GM |
2342 | MINIBUF t means WINDOW may be minibuffer windows. |
2343 | `lambda' means WINDOW may not be a minibuffer window. | |
2344 | a window means a specific minibuffer window | |
67492200 | 2345 | |
118ea242 GM |
2346 | ALL_FRAMES t means search all frames, |
2347 | nil means search just current frame, | |
aa248733 MS |
2348 | `visible' means search just visible frames on the |
2349 | current terminal, | |
2350 | 0 means search visible and iconified frames on the | |
2351 | current terminal, | |
118ea242 GM |
2352 | a window means search the frame that window belongs to, |
2353 | a frame means consider windows on that frame, only. */ | |
67492200 | 2354 | |
d7e6881a DA |
2355 | static bool |
2356 | candidate_window_p (Lisp_Object window, Lisp_Object owindow, | |
2357 | Lisp_Object minibuf, Lisp_Object all_frames) | |
67492200 GM |
2358 | { |
2359 | struct window *w = XWINDOW (window); | |
d3d50620 | 2360 | struct frame *f = XFRAME (w->frame); |
d7e6881a | 2361 | bool candidate_p = 1; |
67492200 | 2362 | |
e74aeda8 | 2363 | if (!BUFFERP (w->contents)) |
67492200 GM |
2364 | candidate_p = 0; |
2365 | else if (MINI_WINDOW_P (w) | |
2366 | && (EQ (minibuf, Qlambda) | |
2367 | || (WINDOWP (minibuf) && !EQ (minibuf, window)))) | |
2368 | { | |
2369 | /* If MINIBUF is `lambda' don't consider any mini-windows. | |
2370 | If it is a window, consider only that one. */ | |
2371 | candidate_p = 0; | |
2372 | } | |
118ea242 GM |
2373 | else if (EQ (all_frames, Qt)) |
2374 | candidate_p = 1; | |
67492200 | 2375 | else if (NILP (all_frames)) |
118ea242 | 2376 | { |
a54e2c05 | 2377 | eassert (WINDOWP (owindow)); |
d3d50620 | 2378 | candidate_p = EQ (w->frame, XWINDOW (owindow)->frame); |
118ea242 | 2379 | } |
67492200 GM |
2380 | else if (EQ (all_frames, Qvisible)) |
2381 | { | |
de509a60 | 2382 | candidate_p = FRAME_VISIBLE_P (f) |
d3d50620 | 2383 | && (FRAME_TERMINAL (XFRAME (w->frame)) |
de509a60 SM |
2384 | == FRAME_TERMINAL (XFRAME (selected_frame))); |
2385 | ||
67492200 GM |
2386 | } |
2387 | else if (INTEGERP (all_frames) && XINT (all_frames) == 0) | |
2388 | { | |
ca2d5566 SM |
2389 | candidate_p = (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f) |
2390 | #ifdef HAVE_X_WINDOWS | |
2391 | /* Yuck!! If we've just created the frame and the | |
2392 | window-manager requested the user to place it | |
2393 | manually, the window may still not be considered | |
2394 | `visible'. I'd argue it should be at least | |
2395 | something like `iconified', but don't know how to do | |
2396 | that yet. --Stef */ | |
2397 | || (FRAME_X_P (f) && f->output_data.x->asked_for_visible | |
2398 | && !f->output_data.x->has_been_visible) | |
2399 | #endif | |
de509a60 | 2400 | ) |
d3d50620 | 2401 | && (FRAME_TERMINAL (XFRAME (w->frame)) |
de509a60 | 2402 | == FRAME_TERMINAL (XFRAME (selected_frame))); |
67492200 | 2403 | } |
67492200 GM |
2404 | else if (WINDOWP (all_frames)) |
2405 | candidate_p = (EQ (FRAME_MINIBUF_WINDOW (f), all_frames) | |
d3d50620 DA |
2406 | || EQ (XWINDOW (all_frames)->frame, w->frame) |
2407 | || EQ (XWINDOW (all_frames)->frame, FRAME_FOCUS_FRAME (f))); | |
118ea242 | 2408 | else if (FRAMEP (all_frames)) |
d3d50620 | 2409 | candidate_p = EQ (all_frames, w->frame); |
67492200 GM |
2410 | |
2411 | return candidate_p; | |
2412 | } | |
2413 | ||
2414 | ||
2415 | /* Decode arguments as allowed by Fnext_window, Fprevious_window, and | |
aa248733 MS |
2416 | Fwindow_list. See candidate_window_p for the meaning of WINDOW, |
2417 | MINIBUF, and ALL_FRAMES. */ | |
67492200 GM |
2418 | |
2419 | static void | |
971de7fb | 2420 | decode_next_window_args (Lisp_Object *window, Lisp_Object *minibuf, Lisp_Object *all_frames) |
67492200 | 2421 | { |
b9e9df47 | 2422 | struct window *w = decode_live_window (*window); |
177c0ea7 | 2423 | |
b6a9e8b1 | 2424 | XSETWINDOW (*window, w); |
67492200 GM |
2425 | /* MINIBUF nil may or may not include minibuffers. Decide if it |
2426 | does. */ | |
2427 | if (NILP (*minibuf)) | |
2428 | *minibuf = minibuf_level ? minibuf_window : Qlambda; | |
2429 | else if (!EQ (*minibuf, Qt)) | |
2430 | *minibuf = Qlambda; | |
177c0ea7 | 2431 | |
67492200 GM |
2432 | /* Now *MINIBUF can be t => count all minibuffer windows, `lambda' |
2433 | => count none of them, or a specific minibuffer window (the | |
2434 | active one) to count. */ | |
2435 | ||
2436 | /* ALL_FRAMES nil doesn't specify which frames to include. */ | |
2437 | if (NILP (*all_frames)) | |
f00af5b1 | 2438 | *all_frames |
3a45383a | 2439 | = (!EQ (*minibuf, Qlambda) |
b9e9df47 | 2440 | ? FRAME_MINIBUF_WINDOW (XFRAME (w->frame)) |
3a45383a | 2441 | : Qnil); |
67492200 GM |
2442 | else if (EQ (*all_frames, Qvisible)) |
2443 | ; | |
0f8fe9a2 | 2444 | else if (EQ (*all_frames, make_number (0))) |
67492200 GM |
2445 | ; |
2446 | else if (FRAMEP (*all_frames)) | |
2447 | ; | |
2448 | else if (!EQ (*all_frames, Qt)) | |
2449 | *all_frames = Qnil; | |
67492200 GM |
2450 | } |
2451 | ||
2452 | ||
ab6d1131 | 2453 | /* Return the next or previous window of WINDOW in cyclic ordering |
67492200 GM |
2454 | of windows. NEXT_P non-zero means return the next window. See the |
2455 | documentation string of next-window for the meaning of MINIBUF and | |
2456 | ALL_FRAMES. */ | |
2457 | ||
2458 | static Lisp_Object | |
971de7fb | 2459 | next_window (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames, int next_p) |
67492200 GM |
2460 | { |
2461 | decode_next_window_args (&window, &minibuf, &all_frames); | |
177c0ea7 | 2462 | |
67492200 GM |
2463 | /* If ALL_FRAMES is a frame, and WINDOW isn't on that frame, just |
2464 | return the first window on the frame. */ | |
2465 | if (FRAMEP (all_frames) | |
d3d50620 | 2466 | && !EQ (all_frames, XWINDOW (window)->frame)) |
67492200 | 2467 | return Fframe_first_window (all_frames); |
177c0ea7 | 2468 | |
212116d6 | 2469 | if (next_p) |
67492200 GM |
2470 | { |
2471 | Lisp_Object list; | |
177c0ea7 | 2472 | |
67492200 GM |
2473 | /* Find WINDOW in the list of all windows. */ |
2474 | list = Fmemq (window, window_list ()); | |
2475 | ||
2476 | /* Scan forward from WINDOW to the end of the window list. */ | |
2477 | if (CONSP (list)) | |
2478 | for (list = XCDR (list); CONSP (list); list = XCDR (list)) | |
118ea242 | 2479 | if (candidate_window_p (XCAR (list), window, minibuf, all_frames)) |
67492200 GM |
2480 | break; |
2481 | ||
2482 | /* Scan from the start of the window list up to WINDOW. */ | |
2483 | if (!CONSP (list)) | |
2484 | for (list = Vwindow_list; | |
2485 | CONSP (list) && !EQ (XCAR (list), window); | |
2486 | list = XCDR (list)) | |
118ea242 | 2487 | if (candidate_window_p (XCAR (list), window, minibuf, all_frames)) |
67492200 GM |
2488 | break; |
2489 | ||
2490 | if (CONSP (list)) | |
2491 | window = XCAR (list); | |
2492 | } | |
2493 | else | |
2494 | { | |
2495 | Lisp_Object candidate, list; | |
177c0ea7 | 2496 | |
67492200 GM |
2497 | /* Scan through the list of windows for candidates. If there are |
2498 | candidate windows in front of WINDOW, the last one of these | |
2499 | is the one we want. If there are candidates following WINDOW | |
2500 | in the list, again the last one of these is the one we want. */ | |
2501 | candidate = Qnil; | |
2502 | for (list = window_list (); CONSP (list); list = XCDR (list)) | |
2503 | { | |
2504 | if (EQ (XCAR (list), window)) | |
2505 | { | |
2506 | if (WINDOWP (candidate)) | |
2507 | break; | |
2508 | } | |
118ea242 GM |
2509 | else if (candidate_window_p (XCAR (list), window, minibuf, |
2510 | all_frames)) | |
67492200 GM |
2511 | candidate = XCAR (list); |
2512 | } | |
2513 | ||
2514 | if (WINDOWP (candidate)) | |
2515 | window = candidate; | |
2516 | } | |
2517 | ||
2518 | return window; | |
2519 | } | |
7ab12479 | 2520 | |
7ab12479 | 2521 | |
a7ca3326 | 2522 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, |
a9b9b7f5 | 2523 | doc: /* Return live window after WINDOW in the cyclic ordering of windows. |
87e68db4 | 2524 | WINDOW must be a live window and defaults to the selected one. The |
9397e56f MR |
2525 | optional arguments MINIBUF and ALL-FRAMES specify the set of windows to |
2526 | consider. | |
2527 | ||
2528 | MINIBUF nil or omitted means consider the minibuffer window only if the | |
2529 | minibuffer is active. MINIBUF t means consider the minibuffer window | |
2530 | even if the minibuffer is not active. Any other value means do not | |
2531 | consider the minibuffer window even if the minibuffer is active. | |
2532 | ||
2533 | ALL-FRAMES nil or omitted means consider all windows on WINDOW's frame, | |
2534 | plus the minibuffer window if specified by the MINIBUF argument. If the | |
2535 | minibuffer counts, consider all windows on all frames that share that | |
2536 | minibuffer too. The following non-nil values of ALL-FRAMES have special | |
2537 | meanings: | |
2538 | ||
2539 | - t means consider all windows on all existing frames. | |
2540 | ||
2541 | - `visible' means consider all windows on all visible frames. | |
2542 | ||
2543 | - 0 (the number zero) means consider all windows on all visible and | |
2544 | iconified frames. | |
2545 | ||
2546 | - A frame means consider all windows on that frame only. | |
ab6d1131 | 2547 | |
ab6d1131 | 2548 | Anything else means consider all windows on WINDOW's frame and no |
9397e56f | 2549 | others. |
fdb82f93 PJ |
2550 | |
2551 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use | |
2552 | `next-window' to iterate through the entire cycle of acceptable | |
2553 | windows, eventually ending up back at the window you started with. | |
2554 | `previous-window' traverses the same cycle, in the reverse order. */) | |
5842a27b | 2555 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
7ab12479 | 2556 | { |
67492200 | 2557 | return next_window (window, minibuf, all_frames, 1); |
7ab12479 JB |
2558 | } |
2559 | ||
67492200 | 2560 | |
26f6279d | 2561 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, |
a9b9b7f5 | 2562 | doc: /* Return live window before WINDOW in the cyclic ordering of windows. |
9397e56f MR |
2563 | WINDOW must be a live window and defaults to the selected one. The |
2564 | optional arguments MINIBUF and ALL-FRAMES specify the set of windows to | |
2565 | consider. | |
2566 | ||
2567 | MINIBUF nil or omitted means consider the minibuffer window only if the | |
2568 | minibuffer is active. MINIBUF t means consider the minibuffer window | |
2569 | even if the minibuffer is not active. Any other value means do not | |
2570 | consider the minibuffer window even if the minibuffer is active. | |
2571 | ||
2572 | ALL-FRAMES nil or omitted means consider all windows on WINDOW's frame, | |
2573 | plus the minibuffer window if specified by the MINIBUF argument. If the | |
2574 | minibuffer counts, consider all windows on all frames that share that | |
2575 | minibuffer too. The following non-nil values of ALL-FRAMES have special | |
2576 | meanings: | |
2577 | ||
2578 | - t means consider all windows on all existing frames. | |
2579 | ||
2580 | - `visible' means consider all windows on all visible frames. | |
2581 | ||
2582 | - 0 (the number zero) means consider all windows on all visible and | |
2583 | iconified frames. | |
2584 | ||
2585 | - A frame means consider all windows on that frame only. | |
2586 | ||
2587 | Anything else means consider all windows on WINDOW's frame and no | |
2588 | others. | |
ab6d1131 MR |
2589 | |
2590 | If you use consistent values for MINIBUF and ALL-FRAMES, you can | |
2591 | use `previous-window' to iterate through the entire cycle of | |
2592 | acceptable windows, eventually ending up back at the window you | |
2593 | started with. `next-window' traverses the same cycle, in the | |
2594 | reverse order. */) | |
5842a27b | 2595 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
7ab12479 | 2596 | { |
67492200 | 2597 | return next_window (window, minibuf, all_frames, 0); |
7ab12479 JB |
2598 | } |
2599 | ||
67492200 | 2600 | |
ab6d1131 | 2601 | /* Return a list of windows in cyclic ordering. Arguments are like |
cd2904bd GM |
2602 | for `next-window'. */ |
2603 | ||
2604 | static Lisp_Object | |
971de7fb | 2605 | window_list_1 (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
67492200 | 2606 | { |
403de3b4 | 2607 | Lisp_Object tail, list, rest; |
67492200 GM |
2608 | |
2609 | decode_next_window_args (&window, &minibuf, &all_frames); | |
2610 | list = Qnil; | |
177c0ea7 | 2611 | |
67492200 | 2612 | for (tail = window_list (); CONSP (tail); tail = XCDR (tail)) |
118ea242 | 2613 | if (candidate_window_p (XCAR (tail), window, minibuf, all_frames)) |
67492200 | 2614 | list = Fcons (XCAR (tail), list); |
177c0ea7 | 2615 | |
403de3b4 RS |
2616 | /* Rotate the list to start with WINDOW. */ |
2617 | list = Fnreverse (list); | |
2618 | rest = Fmemq (window, list); | |
2619 | if (!NILP (rest) && !EQ (rest, list)) | |
2620 | { | |
1725a7c9 | 2621 | for (tail = list; !EQ (XCDR (tail), rest); tail = XCDR (tail)) |
403de3b4 RS |
2622 | ; |
2623 | XSETCDR (tail, Qnil); | |
2624 | list = nconc2 (rest, list); | |
2625 | } | |
2626 | return list; | |
67492200 GM |
2627 | } |
2628 | ||
2629 | ||
abde8f8c MR |
2630 | DEFUN ("window-list", Fwindow_list, Swindow_list, 0, 3, 0, |
2631 | doc: /* Return a list of windows on FRAME, starting with WINDOW. | |
2632 | FRAME nil or omitted means use the selected frame. | |
49745b39 | 2633 | WINDOW nil or omitted means use the window selected within FRAME. |
abde8f8c MR |
2634 | MINIBUF t means include the minibuffer window, even if it isn't active. |
2635 | MINIBUF nil or omitted means include the minibuffer window only | |
2636 | if it's active. | |
2637 | MINIBUF neither nil nor t means never include the minibuffer window. */) | |
2638 | (Lisp_Object frame, Lisp_Object minibuf, Lisp_Object window) | |
2639 | { | |
2640 | if (NILP (window)) | |
e69b0960 | 2641 | window = FRAMEP (frame) ? XFRAME (frame)->selected_window : selected_window; |
abde8f8c MR |
2642 | CHECK_WINDOW (window); |
2643 | if (NILP (frame)) | |
2644 | frame = selected_frame; | |
2645 | ||
d3d50620 | 2646 | if (!EQ (frame, XWINDOW (window)->frame)) |
abde8f8c MR |
2647 | error ("Window is on a different frame"); |
2648 | ||
2649 | return window_list_1 (window, minibuf, frame); | |
2650 | } | |
2651 | ||
2652 | ||
1a13852e MR |
2653 | DEFUN ("window-list-1", Fwindow_list_1, Swindow_list_1, 0, 3, 0, |
2654 | doc: /* Return a list of all live windows. | |
2655 | WINDOW specifies the first window to list and defaults to the selected | |
2656 | window. | |
2657 | ||
2658 | Optional argument MINIBUF nil or omitted means consider the minibuffer | |
2659 | window only if the minibuffer is active. MINIBUF t means consider the | |
2660 | minibuffer window even if the minibuffer is not active. Any other value | |
2661 | means do not consider the minibuffer window even if the minibuffer is | |
2662 | active. | |
2663 | ||
2664 | Optional argument ALL-FRAMES nil or omitted means consider all windows | |
2665 | on WINDOW's frame, plus the minibuffer window if specified by the | |
2666 | MINIBUF argument. If the minibuffer counts, consider all windows on all | |
2667 | frames that share that minibuffer too. The following non-nil values of | |
2668 | ALL-FRAMES have special meanings: | |
2669 | ||
2670 | - t means consider all windows on all existing frames. | |
2671 | ||
2672 | - `visible' means consider all windows on all visible frames. | |
2673 | ||
2674 | - 0 (the number zero) means consider all windows on all visible and | |
2675 | iconified frames. | |
2676 | ||
2677 | - A frame means consider all windows on that frame only. | |
2678 | ||
2679 | Anything else means consider all windows on WINDOW's frame and no | |
2680 | others. | |
2681 | ||
2682 | If WINDOW is not on the list of windows returned, some other window will | |
8350f087 | 2683 | be listed first but no error is signaled. */) |
1a13852e MR |
2684 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
2685 | { | |
2686 | return window_list_1 (window, minibuf, all_frames); | |
2687 | } | |
7ab12479 JB |
2688 | \f |
2689 | /* Look at all windows, performing an operation specified by TYPE | |
2690 | with argument OBJ. | |
75d8f668 | 2691 | If FRAMES is Qt, look at all frames; |
75d8f668 | 2692 | Qnil, look at just the selected frame; |
89bca612 | 2693 | Qvisible, look at visible frames; |
75d8f668 | 2694 | a frame, just look at windows on that frame. |
85fe3b5e | 2695 | If MINI is non-zero, perform the operation on minibuffer windows too. */ |
7ab12479 JB |
2696 | |
2697 | enum window_loop | |
2698 | { | |
2699 | WINDOW_LOOP_UNUSED, | |
9397e56f MR |
2700 | GET_BUFFER_WINDOW, /* Arg is buffer */ |
2701 | REPLACE_BUFFER_IN_WINDOWS_SAFELY, /* Arg is buffer */ | |
2702 | REDISPLAY_BUFFER_WINDOWS, /* Arg is buffer */ | |
e74aeda8 | 2703 | CHECK_ALL_WINDOWS /* Arg is ignored */ |
7ab12479 JB |
2704 | }; |
2705 | ||
2706 | static Lisp_Object | |
971de7fb | 2707 | window_loop (enum window_loop type, Lisp_Object obj, int mini, Lisp_Object frames) |
7ab12479 | 2708 | { |
118ea242 | 2709 | Lisp_Object window, windows, best_window, frame_arg; |
9397e56f | 2710 | int frame_best_window_flag = 0; |
118ea242 | 2711 | struct frame *f; |
ffdc852d | 2712 | struct gcpro gcpro1; |
177c0ea7 | 2713 | |
44fa5b1e JB |
2714 | /* If we're only looping through windows on a particular frame, |
2715 | frame points to that frame. If we're looping through windows | |
2716 | on all frames, frame is 0. */ | |
2717 | if (FRAMEP (frames)) | |
118ea242 | 2718 | f = XFRAME (frames); |
44fa5b1e | 2719 | else if (NILP (frames)) |
118ea242 | 2720 | f = SELECTED_FRAME (); |
7ab12479 | 2721 | else |
118ea242 | 2722 | f = NULL; |
177c0ea7 | 2723 | |
118ea242 | 2724 | if (f) |
89bca612 | 2725 | frame_arg = Qlambda; |
0f8fe9a2 | 2726 | else if (EQ (frames, make_number (0))) |
f812f9c6 | 2727 | frame_arg = frames; |
89bca612 RS |
2728 | else if (EQ (frames, Qvisible)) |
2729 | frame_arg = frames; | |
118ea242 GM |
2730 | else |
2731 | frame_arg = Qt; | |
7ab12479 | 2732 | |
89bca612 RS |
2733 | /* frame_arg is Qlambda to stick to one frame, |
2734 | Qvisible to consider all visible frames, | |
2735 | or Qt otherwise. */ | |
2736 | ||
7ab12479 | 2737 | /* Pick a window to start with. */ |
017b2bad | 2738 | if (WINDOWP (obj)) |
118ea242 GM |
2739 | window = obj; |
2740 | else if (f) | |
2741 | window = FRAME_SELECTED_WINDOW (f); | |
7ab12479 | 2742 | else |
118ea242 | 2743 | window = FRAME_SELECTED_WINDOW (SELECTED_FRAME ()); |
4b206065 | 2744 | |
cd2904bd | 2745 | windows = window_list_1 (window, mini ? Qt : Qnil, frame_arg); |
118ea242 | 2746 | GCPRO1 (windows); |
7ab12479 | 2747 | best_window = Qnil; |
118ea242 | 2748 | |
e67a1dea | 2749 | for (; CONSP (windows); windows = XCDR (windows)) |
7ab12479 | 2750 | { |
118ea242 | 2751 | struct window *w; |
177c0ea7 | 2752 | |
118ea242 GM |
2753 | window = XCAR (windows); |
2754 | w = XWINDOW (window); | |
177c0ea7 | 2755 | |
118ea242 GM |
2756 | /* Note that we do not pay attention here to whether the frame |
2757 | is visible, since Fwindow_list skips non-visible frames if | |
2758 | that is desired, under the control of frame_arg. */ | |
2759 | if (!MINI_WINDOW_P (w) | |
9397e56f MR |
2760 | /* For REPLACE_BUFFER_IN_WINDOWS_SAFELY, we must always |
2761 | consider all windows. */ | |
2762 | || type == REPLACE_BUFFER_IN_WINDOWS_SAFELY | |
7ab12479 JB |
2763 | || (mini && minibuf_level > 0)) |
2764 | switch (type) | |
2765 | { | |
2766 | case GET_BUFFER_WINDOW: | |
e74aeda8 | 2767 | if (EQ (w->contents, obj) |
9397e56f MR |
2768 | /* Don't find any minibuffer window except the one that |
2769 | is currently in use. */ | |
2770 | && (MINI_WINDOW_P (w) ? EQ (window, minibuf_window) : 1)) | |
118ea242 | 2771 | { |
9397e56f MR |
2772 | if (EQ (window, selected_window)) |
2773 | /* Preferably return the selected window. */ | |
ca2d5566 | 2774 | RETURN_UNGCPRO (window); |
d3d50620 | 2775 | else if (EQ (XWINDOW (window)->frame, selected_frame) |
9397e56f MR |
2776 | && !frame_best_window_flag) |
2777 | /* Prefer windows on the current frame (but don't | |
2778 | choose another one if we have one already). */ | |
118ea242 | 2779 | { |
9397e56f MR |
2780 | best_window = window; |
2781 | frame_best_window_flag = 1; | |
7ab12479 | 2782 | } |
9397e56f MR |
2783 | else if (NILP (best_window)) |
2784 | best_window = window; | |
7ab12479 JB |
2785 | } |
2786 | break; | |
2787 | ||
9397e56f MR |
2788 | case REPLACE_BUFFER_IN_WINDOWS_SAFELY: |
2789 | /* We could simply check whether the buffer shown by window | |
2790 | is live, and show another buffer in case it isn't. */ | |
e74aeda8 | 2791 | if (EQ (w->contents, obj)) |
7ab12479 | 2792 | { |
9397e56f | 2793 | /* Undedicate WINDOW. */ |
e8c17b81 | 2794 | wset_dedicated (w, Qnil); |
9397e56f MR |
2795 | /* Make WINDOW show the buffer returned by |
2796 | other_buffer_safely, don't run any hooks. */ | |
2797 | set_window_buffer | |
e74aeda8 | 2798 | (window, other_buffer_safely (w->contents), 0, 0); |
9397e56f MR |
2799 | /* If WINDOW is the selected window, make its buffer |
2800 | current. But do so only if the window shows the | |
2801 | current buffer (Bug#6454). */ | |
2802 | if (EQ (window, selected_window) | |
e74aeda8 DA |
2803 | && XBUFFER (w->contents) == current_buffer) |
2804 | Fset_buffer (w->contents); | |
7ab12479 JB |
2805 | } |
2806 | break; | |
3f8ab7bd | 2807 | |
6b61353c | 2808 | case REDISPLAY_BUFFER_WINDOWS: |
e74aeda8 | 2809 | if (EQ (w->contents, obj)) |
6b61353c KH |
2810 | { |
2811 | mark_window_display_accurate (window, 0); | |
c98ff5dd | 2812 | w->update_mode_line = 1; |
6b61353c | 2813 | XBUFFER (obj)->prevent_redisplay_optimizations_p = 1; |
2ec9db5d | 2814 | update_mode_lines = 27; |
6b61353c KH |
2815 | best_window = window; |
2816 | } | |
2817 | break; | |
2818 | ||
e74aeda8 DA |
2819 | /* Check for a leaf window that has a killed buffer |
2820 | or broken markers. */ | |
3f8ab7bd | 2821 | case CHECK_ALL_WINDOWS: |
e74aeda8 DA |
2822 | if (BUFFERP (w->contents)) |
2823 | { | |
2824 | struct buffer *b = XBUFFER (w->contents); | |
2825 | ||
2826 | if (!BUFFER_LIVE_P (b)) | |
2827 | emacs_abort (); | |
2828 | if (!MARKERP (w->start) || XMARKER (w->start)->buffer != b) | |
2829 | emacs_abort (); | |
2830 | if (!MARKERP (w->pointm) || XMARKER (w->pointm)->buffer != b) | |
2831 | emacs_abort (); | |
2832 | } | |
118ea242 | 2833 | break; |
6bbd7a29 GM |
2834 | |
2835 | case WINDOW_LOOP_UNUSED: | |
2836 | break; | |
7ab12479 | 2837 | } |
7ab12479 | 2838 | } |
7ab12479 | 2839 | |
118ea242 | 2840 | UNGCPRO; |
7ab12479 | 2841 | return best_window; |
37962e60 | 2842 | } |
605be8af | 2843 | |
3f8ab7bd RS |
2844 | /* Used for debugging. Abort if any window has a dead buffer. */ |
2845 | ||
e3b27b31 | 2846 | extern void check_all_windows (void) EXTERNALLY_VISIBLE; |
233a4a2c | 2847 | void |
971de7fb | 2848 | check_all_windows (void) |
3f8ab7bd RS |
2849 | { |
2850 | window_loop (CHECK_ALL_WINDOWS, Qnil, 1, Qt); | |
2851 | } | |
2852 | ||
a7ca3326 | 2853 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 0, 2, 0, |
fec89261 | 2854 | doc: /* Return a window currently displaying BUFFER-OR-NAME, or nil if none. |
496e208e MR |
2855 | BUFFER-OR-NAME may be a buffer or a buffer name and defaults to |
2856 | the current buffer. | |
2857 | ||
2858 | The optional argument ALL-FRAMES specifies the frames to consider: | |
2859 | ||
2860 | - t means consider all windows on all existing frames. | |
2861 | ||
2862 | - `visible' means consider all windows on all visible frames. | |
2863 | ||
2864 | - 0 (the number zero) means consider all windows on all visible | |
2865 | and iconified frames. | |
2866 | ||
2867 | - A frame means consider all windows on that frame only. | |
2868 | ||
2869 | Any other value of ALL-FRAMES means consider all windows on the | |
2870 | selected frame and no others. */) | |
2871 | (Lisp_Object buffer_or_name, Lisp_Object all_frames) | |
7ab12479 | 2872 | { |
fec89261 MR |
2873 | Lisp_Object buffer; |
2874 | ||
2875 | if (NILP (buffer_or_name)) | |
2876 | buffer = Fcurrent_buffer (); | |
2877 | else | |
2878 | buffer = Fget_buffer (buffer_or_name); | |
2879 | ||
017b2bad | 2880 | if (BUFFERP (buffer)) |
496e208e | 2881 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, all_frames); |
7ab12479 JB |
2882 | else |
2883 | return Qnil; | |
2884 | } | |
2885 | ||
4b66faf3 | 2886 | static Lisp_Object |
880e6158 MR |
2887 | resize_root_window (Lisp_Object window, Lisp_Object delta, Lisp_Object horizontal, Lisp_Object ignore, Lisp_Object pixelwise) |
2888 | { | |
2889 | return call5 (Qwindow_resize_root_window, window, delta, horizontal, ignore, pixelwise); | |
2890 | } | |
2891 | ||
2892 | ||
2893 | static Lisp_Object | |
2894 | window_pixel_to_total (Lisp_Object frame, Lisp_Object horizontal) | |
1a13852e | 2895 | { |
880e6158 | 2896 | return call2(Qwindow_pixel_to_total, frame, horizontal); |
1a13852e MR |
2897 | } |
2898 | ||
2899 | ||
2900 | DEFUN ("delete-other-windows-internal", Fdelete_other_windows_internal, | |
2901 | Sdelete_other_windows_internal, 0, 2, "", | |
2902 | doc: /* Make WINDOW fill its frame. | |
52162052 MR |
2903 | Only the frame WINDOW is on is affected. WINDOW must be a valid window |
2904 | and defaults to the selected one. | |
1a13852e | 2905 | |
be7f5545 MR |
2906 | Optional argument ROOT, if non-nil, must specify an internal window such |
2907 | that WINDOW is in its window subtree. If this is the case, replace ROOT | |
2908 | by WINDOW and leave alone any windows not part of ROOT's subtree. | |
1a13852e MR |
2909 | |
2910 | When WINDOW is live try to reduce display jumps by keeping the text | |
2911 | previously visible in WINDOW in the same place on the frame. Doing this | |
2912 | depends on the value of (window-start WINDOW), so if calling this | |
2913 | function in a program gives strange scrolling, make sure the | |
2914 | window-start value is reasonable when this function is called. */) | |
2915 | (Lisp_Object window, Lisp_Object root) | |
2916 | { | |
2917 | struct window *w, *r, *s; | |
2918 | struct frame *f; | |
46a4ce9e | 2919 | Lisp_Object sibling, pwindow, swindow IF_LINT (= Qnil), delta; |
c54aa166 | 2920 | ptrdiff_t startpos IF_LINT (= 0), startbyte IF_LINT (= 0); |
46a4ce9e | 2921 | int top IF_LINT (= 0), new_top, resize_failed; |
1a13852e | 2922 | |
52162052 | 2923 | w = decode_valid_window (window); |
1a13852e | 2924 | XSETWINDOW (window, w); |
d3d50620 | 2925 | f = XFRAME (w->frame); |
1a13852e MR |
2926 | |
2927 | if (NILP (root)) | |
2928 | /* ROOT is the frame's root window. */ | |
2929 | { | |
2930 | root = FRAME_ROOT_WINDOW (f); | |
2931 | r = XWINDOW (root); | |
2932 | } | |
2933 | else | |
2934 | /* ROOT must be an ancestor of WINDOW. */ | |
2935 | { | |
52162052 | 2936 | r = decode_valid_window (root); |
d3d50620 | 2937 | pwindow = XWINDOW (window)->parent; |
1a13852e MR |
2938 | while (!NILP (pwindow)) |
2939 | if (EQ (pwindow, root)) | |
2940 | break; | |
2941 | else | |
d3d50620 | 2942 | pwindow = XWINDOW (pwindow)->parent; |
1a13852e MR |
2943 | if (!EQ (pwindow, root)) |
2944 | error ("Specified root is not an ancestor of specified window"); | |
2945 | } | |
2946 | ||
2947 | if (EQ (window, root)) | |
2948 | /* A noop. */ | |
2949 | return Qnil; | |
2950 | /* I don't understand the "top > 0" part below. If we deal with a | |
2951 | standalone minibuffer it would have been caught by the preceding | |
2952 | test. */ | |
2953 | else if (MINI_WINDOW_P (w)) /* && top > 0) */ | |
2954 | error ("Can't expand minibuffer to full frame"); | |
2955 | ||
e74aeda8 | 2956 | if (BUFFERP (w->contents)) |
1a13852e | 2957 | { |
d3d50620 | 2958 | startpos = marker_position (w->start); |
c54aa166 | 2959 | startbyte = marker_byte_position (w->start); |
880e6158 MR |
2960 | top = (WINDOW_TOP_EDGE_LINE (w) |
2961 | - FRAME_TOP_MARGIN (XFRAME (WINDOW_FRAME (w)))); | |
1a13852e MR |
2962 | /* Make sure WINDOW is the frame's selected window. */ |
2963 | if (!EQ (window, FRAME_SELECTED_WINDOW (f))) | |
2964 | { | |
d3d50620 | 2965 | if (EQ (selected_frame, w->frame)) |
1a13852e MR |
2966 | Fselect_window (window, Qnil); |
2967 | else | |
f00af5b1 | 2968 | fset_selected_window (f, window); |
1a13852e MR |
2969 | } |
2970 | } | |
2971 | else | |
2972 | { | |
be7f5545 MR |
2973 | /* See if the frame's selected window is a part of the window |
2974 | subtree rooted at WINDOW, by finding all the selected window's | |
2975 | parents and comparing each one with WINDOW. If it isn't we | |
2976 | need a new selected window for this frame. */ | |
1a13852e MR |
2977 | swindow = FRAME_SELECTED_WINDOW (f); |
2978 | while (1) | |
2979 | { | |
2980 | pwindow = swindow; | |
2981 | while (!NILP (pwindow) && !EQ (window, pwindow)) | |
d3d50620 | 2982 | pwindow = XWINDOW (pwindow)->parent; |
1a13852e MR |
2983 | |
2984 | if (EQ (window, pwindow)) | |
2985 | /* If WINDOW is an ancestor of SWINDOW, then SWINDOW is ok | |
2986 | as the new selected window. */ | |
2987 | break; | |
2988 | else | |
2989 | /* Else try the previous window of SWINDOW. */ | |
2990 | swindow = Fprevious_window (swindow, Qlambda, Qnil); | |
2991 | } | |
2992 | ||
2993 | if (!EQ (swindow, FRAME_SELECTED_WINDOW (f))) | |
2994 | { | |
d3d50620 | 2995 | if (EQ (selected_frame, w->frame)) |
1a13852e MR |
2996 | Fselect_window (swindow, Qnil); |
2997 | else | |
f00af5b1 | 2998 | fset_selected_window (f, swindow); |
1a13852e MR |
2999 | } |
3000 | } | |
3001 | ||
4d7e6e51 | 3002 | block_input (); |
4c5501e9 EZ |
3003 | if (!FRAME_INITIAL_P (f)) |
3004 | { | |
9fed9729 | 3005 | Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f); |
4c5501e9 EZ |
3006 | |
3007 | /* We are going to free the glyph matrices of WINDOW, and with | |
3008 | that we might lose any information about glyph rows that have | |
3009 | some of their glyphs highlighted in mouse face. (These rows | |
3010 | are marked with a non-zero mouse_face_p flag.) If WINDOW | |
3011 | indeed has some glyphs highlighted in mouse face, signal to | |
3012 | frame's up-to-date hook that mouse highlight was overwritten, | |
3013 | so that it will arrange for redisplaying the highlight. */ | |
3014 | if (EQ (hlinfo->mouse_face_window, window)) | |
9fed9729 | 3015 | reset_mouse_highlight (hlinfo); |
a6b1c7cc | 3016 | } |
1a13852e MR |
3017 | free_window_matrices (r); |
3018 | ||
5961ad6c | 3019 | fset_redisplay (f); |
1a13852e MR |
3020 | Vwindow_list = Qnil; |
3021 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; | |
46a4ce9e | 3022 | resize_failed = 0; |
1a13852e | 3023 | |
e74aeda8 | 3024 | if (!WINDOW_LEAF_P (w)) |
1a13852e | 3025 | { |
be7f5545 | 3026 | /* Resize child windows vertically. */ |
880e6158 MR |
3027 | XSETINT (delta, r->pixel_height - w->pixel_height); |
3028 | w->pixel_top = r->pixel_top; | |
5f24fa51 | 3029 | w->top_line = r->top_line; |
880e6158 | 3030 | resize_root_window (window, delta, Qnil, Qnil, Qt); |
d615d6d2 | 3031 | if (window_resize_check (w, 0)) |
880e6158 MR |
3032 | { |
3033 | window_resize_apply (w, 0); | |
3034 | window_pixel_to_total (w->frame, Qnil); | |
3035 | } | |
1a13852e MR |
3036 | else |
3037 | { | |
880e6158 | 3038 | resize_root_window (window, delta, Qnil, Qt, Qt); |
d615d6d2 | 3039 | if (window_resize_check (w, 0)) |
880e6158 MR |
3040 | { |
3041 | window_resize_apply (w, 0); | |
3042 | window_pixel_to_total (w->frame, Qnil); | |
3043 | } | |
1a13852e MR |
3044 | else |
3045 | resize_failed = 1; | |
3046 | } | |
3047 | ||
be7f5545 | 3048 | /* Resize child windows horizontally. */ |
1a13852e MR |
3049 | if (!resize_failed) |
3050 | { | |
5f24fa51 | 3051 | w->left_col = r->left_col; |
880e6158 MR |
3052 | w->pixel_left = r->pixel_left; |
3053 | XSETINT (delta, r->pixel_width - w->pixel_width); | |
3054 | resize_root_window (window, delta, Qt, Qnil, Qt); | |
d615d6d2 | 3055 | if (window_resize_check (w, 1)) |
880e6158 MR |
3056 | { |
3057 | window_resize_apply (w, 1); | |
3058 | window_pixel_to_total (w->frame, Qt); | |
3059 | } | |
1a13852e MR |
3060 | else |
3061 | { | |
880e6158 | 3062 | resize_root_window (window, delta, Qt, Qt, Qt); |
d615d6d2 | 3063 | if (window_resize_check (w, 1)) |
880e6158 MR |
3064 | { |
3065 | window_resize_apply (w, 1); | |
3066 | window_pixel_to_total (w->frame, Qt); | |
3067 | } | |
1a13852e MR |
3068 | else |
3069 | resize_failed = 1; | |
3070 | } | |
3071 | } | |
3072 | ||
3073 | if (resize_failed) | |
3074 | /* Play safe, if we still can ... */ | |
3075 | { | |
3076 | window = swindow; | |
3077 | w = XWINDOW (window); | |
3078 | } | |
3079 | } | |
3080 | ||
3081 | /* Cleanly unlink WINDOW from window-tree. */ | |
d3d50620 | 3082 | if (!NILP (w->prev)) |
1a13852e MR |
3083 | /* Get SIBLING above (on the left of) WINDOW. */ |
3084 | { | |
d3d50620 | 3085 | sibling = w->prev; |
1a13852e | 3086 | s = XWINDOW (sibling); |
e8c17b81 | 3087 | wset_next (s, w->next); |
d3d50620 | 3088 | if (!NILP (s->next)) |
e8c17b81 | 3089 | wset_prev (XWINDOW (s->next), sibling); |
1a13852e MR |
3090 | } |
3091 | else | |
3092 | /* Get SIBLING below (on the right of) WINDOW. */ | |
3093 | { | |
d3d50620 | 3094 | sibling = w->next; |
1a13852e | 3095 | s = XWINDOW (sibling); |
e8c17b81 | 3096 | wset_prev (s, Qnil); |
e74aeda8 DA |
3097 | wset_combination (XWINDOW (w->parent), |
3098 | XWINDOW (w->parent)->horizontal, sibling); | |
1a13852e MR |
3099 | } |
3100 | ||
be7f5545 | 3101 | /* Delete ROOT and all child windows of ROOT. */ |
e74aeda8 | 3102 | if (WINDOWP (r->contents)) |
1a13852e | 3103 | { |
e74aeda8 DA |
3104 | delete_all_child_windows (r->contents); |
3105 | wset_combination (r, 0, Qnil); | |
1a13852e MR |
3106 | } |
3107 | ||
3108 | replace_window (root, window, 1); | |
3109 | ||
7ffe7ef6 | 3110 | /* This must become SWINDOW anyway ....... */ |
e74aeda8 | 3111 | if (BUFFERP (w->contents) && !resize_failed) |
1a13852e MR |
3112 | { |
3113 | /* Try to minimize scrolling, by setting the window start to the | |
3114 | point will cause the text at the old window start to be at the | |
3115 | same place on the frame. But don't try to do this if the | |
3116 | window start is outside the visible portion (as might happen | |
3117 | when the display is not current, due to typeahead). */ | |
3118 | new_top = WINDOW_TOP_EDGE_LINE (w) - FRAME_TOP_MARGIN (XFRAME (WINDOW_FRAME (w))); | |
3119 | if (new_top != top | |
e74aeda8 DA |
3120 | && startpos >= BUF_BEGV (XBUFFER (w->contents)) |
3121 | && startpos <= BUF_ZV (XBUFFER (w->contents))) | |
1a13852e MR |
3122 | { |
3123 | struct position pos; | |
3124 | struct buffer *obuf = current_buffer; | |
3125 | ||
e74aeda8 | 3126 | Fset_buffer (w->contents); |
1a13852e MR |
3127 | /* This computation used to temporarily move point, but that |
3128 | can have unwanted side effects due to text properties. */ | |
c54aa166 | 3129 | pos = *vmotion (startpos, startbyte, -top, w); |
1a13852e | 3130 | |
e74aeda8 | 3131 | set_marker_both (w->start, w->contents, pos.bufpos, pos.bytepos); |
9d93ce29 | 3132 | w->window_end_valid = 0; |
c98ff5dd DA |
3133 | w->start_at_line_beg = (pos.bytepos == BEGV_BYTE |
3134 | || FETCH_BYTE (pos.bytepos - 1) == '\n'); | |
1a13852e MR |
3135 | /* We need to do this, so that the window-scroll-functions |
3136 | get called. */ | |
c98ff5dd | 3137 | w->optional_new_start = 1; |
1a13852e MR |
3138 | |
3139 | set_buffer_internal (obuf); | |
3140 | } | |
3141 | } | |
3142 | ||
bd0443bb | 3143 | adjust_frame_glyphs (f); |
4d7e6e51 | 3144 | unblock_input (); |
1a13852e MR |
3145 | |
3146 | run_window_configuration_change_hook (f); | |
3147 | ||
3148 | return Qnil; | |
3149 | } | |
3150 | ||
3151 | ||
9397e56f MR |
3152 | void |
3153 | replace_buffer_in_windows (Lisp_Object buffer) | |
7ab12479 | 3154 | { |
9397e56f | 3155 | call1 (Qreplace_buffer_in_windows, buffer); |
7ab12479 JB |
3156 | } |
3157 | ||
c6afe371 DA |
3158 | /* If BUFFER is shown in a window, safely replace it with some other |
3159 | buffer in all windows of all frames, even those on other keyboards. */ | |
ff58478b RS |
3160 | |
3161 | void | |
9397e56f | 3162 | replace_buffer_in_windows_safely (Lisp_Object buffer) |
ff58478b | 3163 | { |
c6afe371 DA |
3164 | if (buffer_window_count (XBUFFER (buffer))) |
3165 | { | |
3166 | Lisp_Object tail, frame; | |
ff58478b | 3167 | |
c6afe371 DA |
3168 | /* A single call to window_loop won't do the job because it only |
3169 | considers frames on the current keyboard. So loop manually over | |
3170 | frames, and handle each one. */ | |
3171 | FOR_EACH_FRAME (tail, frame) | |
3172 | window_loop (REPLACE_BUFFER_IN_WINDOWS_SAFELY, buffer, 1, frame); | |
3173 | } | |
ff58478b | 3174 | } |
c6afe371 | 3175 | |
880e6158 MR |
3176 | /* If *HEIGHT or *WIDTH are too small a size for FRAME, set them to the |
3177 | minimum allowable size. PIXELWISE means interpret these as pixel | |
3178 | sizes. */ | |
5500c422 | 3179 | |
605be8af | 3180 | void |
880e6158 | 3181 | check_frame_size (struct frame *frame, int *width, int *height, bool pixelwise) |
a481b3ea | 3182 | { |
628df3bf | 3183 | /* For height, we have to see: |
54b8bcb5 RS |
3184 | how many windows the frame has at minimum (one or two), |
3185 | and whether it has a menu bar or other special stuff at the top. */ | |
880e6158 MR |
3186 | if (pixelwise) |
3187 | { | |
3188 | int min_height = MIN_SAFE_WINDOW_HEIGHT * FRAME_LINE_HEIGHT (frame); | |
3189 | int min_width = MIN_SAFE_WINDOW_WIDTH * FRAME_COLUMN_WIDTH (frame); | |
177c0ea7 | 3190 | |
880e6158 MR |
3191 | if (!FRAME_MINIBUF_ONLY_P (frame) && FRAME_HAS_MINIBUF_P (frame)) |
3192 | min_height = 2 * min_height; | |
a481b3ea | 3193 | |
880e6158 | 3194 | min_height += FRAME_TOP_MARGIN_HEIGHT (frame); |
7d7ccb88 | 3195 | min_height += FRAME_INTERNAL_BORDER_WIDTH (frame); |
880e6158 MR |
3196 | |
3197 | if (*height < min_height) | |
3198 | *height = min_height; | |
3199 | if (*width < min_width) | |
3200 | *width = min_width; | |
3201 | } | |
3202 | else | |
3203 | { | |
3204 | int min_height | |
3205 | = ((FRAME_MINIBUF_ONLY_P (frame) || ! FRAME_HAS_MINIBUF_P (frame)) | |
3206 | ? MIN_SAFE_WINDOW_HEIGHT | |
3207 | : 2 * MIN_SAFE_WINDOW_HEIGHT); | |
3208 | ||
3209 | if (FRAME_TOP_MARGIN (frame) > 0) | |
3210 | min_height += FRAME_TOP_MARGIN (frame); | |
3211 | ||
3212 | if (*height < min_height) | |
3213 | *height = min_height; | |
3214 | if (*width < MIN_SAFE_WINDOW_WIDTH) | |
3215 | *width = MIN_SAFE_WINDOW_WIDTH; | |
3216 | } | |
a481b3ea JB |
3217 | } |
3218 | ||
79fd290e | 3219 | /* Adjust the margins of window W if text area is too small. |
949cf20f KS |
3220 | Return 1 if window width is ok after adjustment; 0 if window |
3221 | is still too narrow. */ | |
3222 | ||
3223 | static int | |
971de7fb | 3224 | adjust_window_margins (struct window *w) |
949cf20f | 3225 | { |
880e6158 MR |
3226 | int box_width = (WINDOW_PIXEL_WIDTH (w) |
3227 | - WINDOW_FRINGES_WIDTH (w) | |
3228 | - WINDOW_SCROLL_BAR_AREA_WIDTH (w)); | |
3229 | int margin_width = WINDOW_MARGINS_WIDTH (w); | |
949cf20f | 3230 | |
880e6158 | 3231 | if (box_width - margin_width >= MIN_SAFE_WINDOW_PIXEL_WIDTH (w)) |
949cf20f KS |
3232 | return 1; |
3233 | ||
880e6158 | 3234 | if (margin_width < 0 || box_width < MIN_SAFE_WINDOW_PIXEL_WIDTH (w)) |
949cf20f | 3235 | return 0; |
880e6158 MR |
3236 | else |
3237 | /* Window's text area is too narrow, but reducing the window | |
3238 | margins will fix that. */ | |
949cf20f | 3239 | { |
880e6158 MR |
3240 | int unit = WINDOW_FRAME_COLUMN_WIDTH (w); |
3241 | ||
3242 | margin_width = box_width - MIN_SAFE_WINDOW_PIXEL_WIDTH (w); | |
3243 | ||
3244 | if (WINDOW_RIGHT_MARGIN_WIDTH (w) > 0) | |
3245 | { | |
3246 | if (WINDOW_LEFT_MARGIN_WIDTH (w) > 0) | |
3247 | w->left_margin_cols = w->right_margin_cols = | |
3248 | margin_width / (2 * unit); | |
3249 | else | |
3250 | w->right_margin_cols = margin_width / unit; | |
3251 | } | |
949cf20f | 3252 | else |
880e6158 MR |
3253 | w->left_margin_cols = margin_width / unit; |
3254 | ||
3255 | return 1; | |
949cf20f | 3256 | } |
949cf20f | 3257 | } |
562dd5e9 | 3258 | \f |
9397e56f MR |
3259 | /* The following three routines are needed for running a window's |
3260 | configuration change hook. */ | |
562dd5e9 MR |
3261 | static void |
3262 | run_funs (Lisp_Object funs) | |
3263 | { | |
3264 | for (; CONSP (funs); funs = XCDR (funs)) | |
3265 | if (!EQ (XCAR (funs), Qt)) | |
3266 | call0 (XCAR (funs)); | |
3267 | } | |
6b61353c | 3268 | |
27e498e6 | 3269 | static void |
9397e56f MR |
3270 | select_window_norecord (Lisp_Object window) |
3271 | { | |
27e498e6 PE |
3272 | if (WINDOW_LIVE_P (window)) |
3273 | Fselect_window (window, Qt); | |
9397e56f MR |
3274 | } |
3275 | ||
27e498e6 | 3276 | static void |
9397e56f MR |
3277 | select_frame_norecord (Lisp_Object frame) |
3278 | { | |
27e498e6 PE |
3279 | if (FRAME_LIVE_P (XFRAME (frame))) |
3280 | Fselect_frame (frame, Qt); | |
9397e56f | 3281 | } |
6b61353c | 3282 | |
562dd5e9 MR |
3283 | void |
3284 | run_window_configuration_change_hook (struct frame *f) | |
3285 | { | |
d311d28c | 3286 | ptrdiff_t count = SPECPDL_INDEX (); |
562dd5e9 MR |
3287 | Lisp_Object frame, global_wcch |
3288 | = Fdefault_value (Qwindow_configuration_change_hook); | |
3289 | XSETFRAME (frame, f); | |
6b61353c | 3290 | |
d1f55f16 | 3291 | if (NILP (Vrun_hooks) || !NILP (inhibit_lisp_code)) |
562dd5e9 | 3292 | return; |
6b61353c | 3293 | |
562dd5e9 MR |
3294 | /* Use the right buffer. Matters when running the local hooks. */ |
3295 | if (current_buffer != XBUFFER (Fwindow_buffer (Qnil))) | |
6b61353c | 3296 | { |
66322887 | 3297 | record_unwind_current_buffer (); |
562dd5e9 MR |
3298 | Fset_buffer (Fwindow_buffer (Qnil)); |
3299 | } | |
6a44ffb3 | 3300 | |
1a13852e MR |
3301 | if (SELECTED_FRAME () != f) |
3302 | { | |
d2a95ffb | 3303 | record_unwind_protect (select_frame_norecord, selected_frame); |
1a13852e MR |
3304 | select_frame_norecord (frame); |
3305 | } | |
3306 | ||
6a44ffb3 SM |
3307 | /* Look for buffer-local values. */ |
3308 | { | |
3309 | Lisp_Object windows = Fwindow_list (frame, Qlambda, Qnil); | |
3310 | for (; CONSP (windows); windows = XCDR (windows)) | |
3311 | { | |
3312 | Lisp_Object window = XCAR (windows); | |
3313 | Lisp_Object buffer = Fwindow_buffer (window); | |
3314 | if (!NILP (Flocal_variable_p (Qwindow_configuration_change_hook, | |
3315 | buffer))) | |
3316 | { | |
d311d28c | 3317 | ptrdiff_t inner_count = SPECPDL_INDEX (); |
d2a95ffb | 3318 | record_unwind_protect (select_window_norecord, selected_window); |
6a44ffb3 SM |
3319 | select_window_norecord (window); |
3320 | run_funs (Fbuffer_local_value (Qwindow_configuration_change_hook, | |
3321 | buffer)); | |
46a4ce9e | 3322 | unbind_to (inner_count, Qnil); |
fec89261 | 3323 | } |
6a44ffb3 SM |
3324 | } |
3325 | } | |
047aaeb9 | 3326 | |
6a44ffb3 SM |
3327 | run_funs (global_wcch); |
3328 | unbind_to (count, Qnil); | |
ef264c42 SM |
3329 | } |
3330 | ||
1a13852e | 3331 | DEFUN ("run-window-configuration-change-hook", Frun_window_configuration_change_hook, |
d9f07150 | 3332 | Srun_window_configuration_change_hook, 0, 1, 0, |
68f8f1c0 | 3333 | doc: /* Run `window-configuration-change-hook' for FRAME. |
d9f07150 | 3334 | If FRAME is omitted or nil, it defaults to the selected frame. */) |
c4b6914d | 3335 | (Lisp_Object frame) |
1a13852e | 3336 | { |
d9f07150 | 3337 | run_window_configuration_change_hook (decode_live_frame (frame)); |
1a13852e MR |
3338 | return Qnil; |
3339 | } | |
3340 | ||
880e6158 MR |
3341 | DEFUN ("run-window-scroll-functions", Frun_window_scroll_functions, |
3342 | Srun_window_scroll_functions, 0, 1, 0, | |
3343 | doc: /* Run `window-scroll-functions' for WINDOW. | |
3344 | If WINDOW is omitted or nil, it defaults to the selected window. */) | |
3345 | (Lisp_Object window) | |
3346 | { | |
3347 | if (! NILP (Vwindow_scroll_functions)) | |
3348 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
3349 | Fmarker_position (decode_live_window (window)->start)); | |
3350 | return Qnil; | |
3351 | } | |
3352 | ||
3353 | /* Make WINDOW display BUFFER. RUN_HOOKS_P non-zero means it's allowed | |
3354 | to run hooks. See make_frame for a case where it's not allowed. | |
3355 | KEEP_MARGINS_P non-zero means that the current margins, fringes, and | |
3356 | scroll-bar settings of the window are not reset from the buffer's | |
3357 | local settings. */ | |
7ab12479 | 3358 | |
5500c422 | 3359 | void |
748fa866 DA |
3360 | set_window_buffer (Lisp_Object window, Lisp_Object buffer, |
3361 | bool run_hooks_p, bool keep_margins_p) | |
5500c422 GM |
3362 | { |
3363 | struct window *w = XWINDOW (window); | |
3364 | struct buffer *b = XBUFFER (buffer); | |
d311d28c | 3365 | ptrdiff_t count = SPECPDL_INDEX (); |
880e6158 | 3366 | bool samebuf = EQ (buffer, w->contents); |
7ab12479 | 3367 | |
e8c17b81 | 3368 | wset_buffer (w, buffer); |
86e48436 RS |
3369 | |
3370 | if (EQ (window, selected_window)) | |
39eb03f1 | 3371 | bset_last_selected_window (b, window); |
beb4e312 | 3372 | |
c49a0495 KS |
3373 | /* Let redisplay errors through. */ |
3374 | b->display_error_modiff = 0; | |
3375 | ||
beb4e312 | 3376 | /* Update time stamps of buffer display. */ |
4b4deea2 | 3377 | if (INTEGERP (BVAR (b, display_count))) |
39eb03f1 PE |
3378 | bset_display_count (b, make_number (XINT (BVAR (b, display_count)) + 1)); |
3379 | bset_display_time (b, Fcurrent_time ()); | |
86e48436 | 3380 | |
02455cb6 DA |
3381 | w->window_end_pos = 0; |
3382 | w->window_end_vpos = 0; | |
c80016b3 | 3383 | w->last_cursor_vpos = 0; |
9d93ce29 | 3384 | |
c3b232e4 | 3385 | if (!(keep_margins_p && samebuf)) |
23fe745a | 3386 | { /* If we're not actually changing the buffer, don't reset hscroll and |
c3b232e4 SM |
3387 | vscroll. This case happens for example when called from |
3388 | change_frame_size_1, where we use a dummy call to | |
3389 | Fset_window_buffer on the frame's selected window (and no other) | |
3390 | just in order to run window-configuration-change-hook. | |
3391 | Resetting hscroll and vscroll here is problematic for things like | |
3392 | image-mode and doc-view-mode since it resets the image's position | |
3393 | whenever we resize the frame. */ | |
80b00b08 | 3394 | w->hscroll = w->min_hscroll = 0; |
c3b232e4 | 3395 | w->vscroll = 0; |
d3d50620 DA |
3396 | set_marker_both (w->pointm, buffer, BUF_PT (b), BUF_PT_BYTE (b)); |
3397 | set_marker_restricted (w->start, | |
c3b232e4 SM |
3398 | make_number (b->last_window_start), |
3399 | buffer); | |
c98ff5dd DA |
3400 | w->start_at_line_beg = 0; |
3401 | w->force_start = 0; | |
c3b232e4 SM |
3402 | } |
3403 | /* Maybe we could move this into the `if' but it's not obviously safe and | |
3404 | I doubt it's worth the trouble. */ | |
5961ad6c | 3405 | wset_redisplay (w); |
0d9cba29 | 3406 | w->update_mode_line = true; |
5b03d3c0 | 3407 | |
da39107c | 3408 | /* We must select BUFFER for running the window-scroll-functions. */ |
5b03d3c0 RS |
3409 | /* We can't check ! NILP (Vwindow_scroll_functions) here |
3410 | because that might itself be a local variable. */ | |
da39107c | 3411 | if (window_initialized) |
5b03d3c0 | 3412 | { |
66322887 | 3413 | record_unwind_current_buffer (); |
5b03d3c0 RS |
3414 | Fset_buffer (buffer); |
3415 | } | |
3416 | ||
d3d50620 | 3417 | XMARKER (w->pointm)->insertion_type = !NILP (Vwindow_point_insertion_type); |
a1562258 | 3418 | |
949cf20f KS |
3419 | if (!keep_margins_p) |
3420 | { | |
3421 | /* Set left and right marginal area width etc. from buffer. */ | |
25554267 DA |
3422 | set_window_fringes (w, BVAR (b, left_fringe_width), |
3423 | BVAR (b, right_fringe_width), | |
3424 | BVAR (b, fringes_outside_margins)); | |
3425 | set_window_scroll_bars (w, BVAR (b, scroll_bar_width), | |
3426 | BVAR (b, vertical_scroll_bar_type), Qnil); | |
3427 | set_window_margins (w, BVAR (b, left_margin_cols), | |
3428 | BVAR (b, right_margin_cols)); | |
3429 | apply_window_adjustment (w); | |
949cf20f | 3430 | } |
7ab12479 | 3431 | |
5500c422 GM |
3432 | if (run_hooks_p) |
3433 | { | |
3434 | if (! NILP (Vwindow_scroll_functions)) | |
3435 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
d3d50620 | 3436 | Fmarker_position (w->start)); |
880e6158 MR |
3437 | if (!samebuf) |
3438 | run_window_configuration_change_hook (XFRAME (WINDOW_FRAME (w))); | |
5500c422 | 3439 | } |
543f5fb1 | 3440 | |
5b03d3c0 | 3441 | unbind_to (count, Qnil); |
5500c422 | 3442 | } |
5b03d3c0 | 3443 | |
a7ca3326 | 3444 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 3, 0, |
880e6158 | 3445 | doc: /* Make WINDOW display BUFFER-OR-NAME. |
52162052 | 3446 | WINDOW must be a live window and defaults to the selected one. |
9397e56f MR |
3447 | BUFFER-OR-NAME must be a buffer or the name of an existing buffer. |
3448 | ||
3449 | Optional third argument KEEP-MARGINS non-nil means that WINDOW's current | |
3450 | display margins, fringe widths, and scroll bar settings are preserved; | |
3451 | the default is to reset these from the local settings for BUFFER-OR-NAME | |
3452 | or the frame defaults. Return nil. | |
d653c8cc | 3453 | |
7bfac547 MR |
3454 | This function throws an error when WINDOW is strongly dedicated to its |
3455 | buffer (that is `window-dedicated-p' returns t for WINDOW) and does not | |
3456 | already display BUFFER-OR-NAME. | |
6cb4a892 | 3457 | |
8fef9de1 MR |
3458 | This function runs `window-scroll-functions' before running |
3459 | `window-configuration-change-hook'. */) | |
5842a27b | 3460 | (register Lisp_Object window, Lisp_Object buffer_or_name, Lisp_Object keep_margins) |
5500c422 | 3461 | { |
d653c8cc | 3462 | register Lisp_Object tem, buffer; |
52162052 | 3463 | register struct window *w = decode_live_window (window); |
5500c422 | 3464 | |
bed0c171 | 3465 | XSETWINDOW (window, w); |
d653c8cc | 3466 | buffer = Fget_buffer (buffer_or_name); |
b7826503 | 3467 | CHECK_BUFFER (buffer); |
e578f381 | 3468 | if (!BUFFER_LIVE_P (XBUFFER (buffer))) |
5500c422 GM |
3469 | error ("Attempt to display deleted buffer"); |
3470 | ||
e74aeda8 | 3471 | tem = w->contents; |
aac0c6e3 MR |
3472 | if (NILP (tem)) |
3473 | error ("Window is deleted"); | |
822995f8 | 3474 | else |
5500c422 | 3475 | { |
9397e56f MR |
3476 | if (!EQ (tem, buffer)) |
3477 | { | |
d3d50620 | 3478 | if (EQ (w->dedicated, Qt)) |
9397e56f MR |
3479 | /* WINDOW is strongly dedicated to its buffer, signal an |
3480 | error. */ | |
3481 | error ("Window is dedicated to `%s'", SDATA (BVAR (XBUFFER (tem), name))); | |
3482 | else | |
3483 | /* WINDOW is weakly dedicated to its buffer, reset | |
e4769531 | 3484 | dedication. */ |
e8c17b81 | 3485 | wset_dedicated (w, Qnil); |
9397e56f MR |
3486 | |
3487 | call1 (Qrecord_window_buffer, window); | |
3488 | } | |
5500c422 GM |
3489 | |
3490 | unshow_buffer (w); | |
3491 | } | |
3492 | ||
949cf20f | 3493 | set_window_buffer (window, buffer, 1, !NILP (keep_margins)); |
7ab12479 | 3494 | |
9397e56f | 3495 | return Qnil; |
c6932ecd | 3496 | } |
b7354ddf | 3497 | \f |
7e5cf297 | 3498 | static Lisp_Object |
971de7fb | 3499 | display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, Lisp_Object override_frame) |
d07f802a | 3500 | { |
87478b52 | 3501 | return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); |
d07f802a RS |
3502 | } |
3503 | ||
6b61353c KH |
3504 | DEFUN ("force-window-update", Fforce_window_update, Sforce_window_update, |
3505 | 0, 1, 0, | |
5a1048a5 | 3506 | doc: /* Force all windows to be updated on next redisplay. |
6b61353c | 3507 | If optional arg OBJECT is a window, force redisplay of that window only. |
0cc1039f | 3508 | If OBJECT is a buffer or buffer name, force redisplay of all windows |
6b61353c | 3509 | displaying that buffer. */) |
5842a27b | 3510 | (Lisp_Object object) |
6b61353c KH |
3511 | { |
3512 | if (NILP (object)) | |
3513 | { | |
94ae2ad4 | 3514 | windows_or_buffers_changed = 29; |
2ec9db5d | 3515 | update_mode_lines = 28; |
6b61353c KH |
3516 | return Qt; |
3517 | } | |
3518 | ||
3519 | if (WINDOWP (object)) | |
3520 | { | |
3521 | struct window *w = XWINDOW (object); | |
3522 | mark_window_display_accurate (object, 0); | |
c98ff5dd | 3523 | w->update_mode_line = 1; |
e74aeda8 DA |
3524 | if (BUFFERP (w->contents)) |
3525 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; | |
2ec9db5d | 3526 | update_mode_lines = 29; |
6b61353c KH |
3527 | return Qt; |
3528 | } | |
0cc1039f | 3529 | |
6b61353c KH |
3530 | if (STRINGP (object)) |
3531 | object = Fget_buffer (object); | |
c6afe371 DA |
3532 | if (BUFFERP (object) && BUFFER_LIVE_P (XBUFFER (object)) |
3533 | && buffer_window_count (XBUFFER (object))) | |
6b61353c | 3534 | { |
c6afe371 DA |
3535 | /* If buffer is live and shown in at least one window, find |
3536 | all windows showing this buffer and force update of them. */ | |
6b61353c KH |
3537 | object = window_loop (REDISPLAY_BUFFER_WINDOWS, object, 0, Qvisible); |
3538 | return NILP (object) ? Qnil : Qt; | |
3539 | } | |
3540 | ||
3541 | /* If nothing suitable was found, just return. | |
3542 | We could signal an error, but this feature will typically be used | |
3543 | asynchronously in timers or process sentinels, so we don't. */ | |
3544 | return Qnil; | |
3545 | } | |
3546 | ||
1f76f6f5 | 3547 | /* Obsolete since 24.3. */ |
7ab12479 | 3548 | void |
971de7fb | 3549 | temp_output_buffer_show (register Lisp_Object buf) |
7ab12479 JB |
3550 | { |
3551 | register struct buffer *old = current_buffer; | |
3552 | register Lisp_Object window; | |
3553 | register struct window *w; | |
3554 | ||
39eb03f1 | 3555 | bset_directory (XBUFFER (buf), BVAR (current_buffer, directory)); |
bccd3dd1 | 3556 | |
7ab12479 | 3557 | Fset_buffer (buf); |
c6367666 | 3558 | BUF_SAVE_MODIFF (XBUFFER (buf)) = MODIFF; |
7ab12479 JB |
3559 | BEGV = BEG; |
3560 | ZV = Z; | |
3561 | SET_PT (BEG); | |
7ab12479 JB |
3562 | set_buffer_internal (old); |
3563 | ||
e67a1dea | 3564 | if (!NILP (Vtemp_buffer_show_function)) |
7ab12479 | 3565 | call1 (Vtemp_buffer_show_function, buf); |
0a357e98 | 3566 | else if (WINDOW_LIVE_P (window = display_buffer (buf, Qnil, Qnil))) |
7ab12479 | 3567 | { |
d3d50620 | 3568 | if (!EQ (XWINDOW (window)->frame, selected_frame)) |
44fa5b1e | 3569 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); |
7ab12479 JB |
3570 | Vminibuf_scroll_window = window; |
3571 | w = XWINDOW (window); | |
80b00b08 DA |
3572 | w->hscroll = 0; |
3573 | w->min_hscroll = 0; | |
d3d50620 DA |
3574 | set_marker_restricted_both (w->start, buf, BEG, BEG); |
3575 | set_marker_restricted_both (w->pointm, buf, BEG, BEG); | |
a58ec57d | 3576 | |
beb4e312 | 3577 | /* Run temp-buffer-show-hook, with the chosen window selected |
a5731348 | 3578 | and its buffer current. */ |
dee091a3 | 3579 | { |
d311d28c | 3580 | ptrdiff_t count = SPECPDL_INDEX (); |
dee091a3 JD |
3581 | Lisp_Object prev_window, prev_buffer; |
3582 | prev_window = selected_window; | |
3583 | XSETBUFFER (prev_buffer, old); | |
3584 | ||
3585 | /* Select the window that was chosen, for running the hook. | |
3586 | Note: Both Fselect_window and select_window_norecord may | |
3587 | set-buffer to the buffer displayed in the window, | |
3588 | so we need to save the current buffer. --stef */ | |
27e498e6 | 3589 | record_unwind_protect (restore_buffer, prev_buffer); |
dee091a3 JD |
3590 | record_unwind_protect (select_window_norecord, prev_window); |
3591 | Fselect_window (window, Qt); | |
e74aeda8 | 3592 | Fset_buffer (w->contents); |
dee091a3 JD |
3593 | Frun_hooks (1, &Qtemp_buffer_show_hook); |
3594 | unbind_to (count, Qnil); | |
3595 | } | |
2cccc823 | 3596 | } |
7ab12479 JB |
3597 | } |
3598 | \f | |
1a13852e MR |
3599 | /* Make new window, have it replace WINDOW in window-tree, and make |
3600 | WINDOW its only vertical child (HORFLAG 1 means make WINDOW its only | |
3601 | horizontal child). */ | |
3602 | static void | |
748fa866 | 3603 | make_parent_window (Lisp_Object window, bool horflag) |
1a13852e MR |
3604 | { |
3605 | Lisp_Object parent; | |
3606 | register struct window *o, *p; | |
1a13852e MR |
3607 | |
3608 | o = XWINDOW (window); | |
3609 | p = allocate_window (); | |
aa754e6a | 3610 | memcpy ((char *) p + sizeof (struct vectorlike_header), |
62efea5e | 3611 | (char *) o + sizeof (struct vectorlike_header), |
663e2b3f | 3612 | word_size * VECSIZE (struct window)); |
e74aeda8 | 3613 | /* P's buffer slot may change from nil to a buffer... */ |
98a07056 | 3614 | adjust_window_count (p, 1); |
1a13852e MR |
3615 | XSETWINDOW (parent, p); |
3616 | ||
880e6158 MR |
3617 | p->sequence_number = ++sequence_number; |
3618 | ||
1a13852e MR |
3619 | replace_window (window, parent, 1); |
3620 | ||
e8c17b81 PE |
3621 | wset_next (o, Qnil); |
3622 | wset_prev (o, Qnil); | |
3623 | wset_parent (o, parent); | |
e74aeda8 | 3624 | /* ...but now P becomes an internal window. */ |
e8c17b81 PE |
3625 | wset_start (p, Qnil); |
3626 | wset_pointm (p, Qnil); | |
3627 | wset_buffer (p, Qnil); | |
e74aeda8 | 3628 | wset_combination (p, horflag, window); |
e8c17b81 PE |
3629 | wset_combination_limit (p, Qnil); |
3630 | wset_window_parameters (p, Qnil); | |
1a13852e MR |
3631 | } |
3632 | ||
496e208e MR |
3633 | /* Make new window from scratch. */ |
3634 | Lisp_Object | |
3635 | make_window (void) | |
3636 | { | |
3637 | Lisp_Object window; | |
3638 | register struct window *w; | |
3639 | ||
3640 | w = allocate_window (); | |
62efea5e DA |
3641 | /* Initialize Lisp data. Note that allocate_window initializes all |
3642 | Lisp data to nil, so do it only for slots which should not be nil. */ | |
e8c17b81 PE |
3643 | wset_normal_lines (w, make_float (1.0)); |
3644 | wset_normal_cols (w, make_float (1.0)); | |
3645 | wset_new_total (w, make_number (0)); | |
3646 | wset_new_normal (w, make_number (0)); | |
880e6158 | 3647 | wset_new_pixel (w, make_number (0)); |
e8c17b81 PE |
3648 | wset_start (w, Fmake_marker ()); |
3649 | wset_pointm (w, Fmake_marker ()); | |
3650 | wset_vertical_scroll_bar_type (w, Qt); | |
e99f70c8 SM |
3651 | /* These Lisp fields are marked specially so they're not set to nil by |
3652 | allocate_window. */ | |
3653 | wset_prev_buffers (w, Qnil); | |
3654 | wset_next_buffers (w, Qnil); | |
62efea5e DA |
3655 | |
3656 | /* Initialize non-Lisp data. Note that allocate_window zeroes out all | |
3657 | non-Lisp data, so do it only for slots which should not be zero. */ | |
496e208e | 3658 | w->nrows_scale_factor = w->ncols_scale_factor = 1; |
9e37ee3b | 3659 | w->left_fringe_width = w->right_fringe_width = -1; |
b9695828 | 3660 | w->mode_line_height = w->header_line_height = -1; |
29bf4de4 DA |
3661 | #ifdef HAVE_WINDOW_SYSTEM |
3662 | w->phys_cursor_type = NO_CURSOR; | |
496e208e | 3663 | w->phys_cursor_width = -1; |
29bf4de4 | 3664 | #endif |
880e6158 | 3665 | w->sequence_number = ++sequence_number; |
38a2c910 | 3666 | w->scroll_bar_width = -1; |
422ff52b | 3667 | w->column_number_displayed = -1; |
62efea5e | 3668 | |
496e208e MR |
3669 | /* Reset window_list. */ |
3670 | Vwindow_list = Qnil; | |
3671 | /* Return window. */ | |
3672 | XSETWINDOW (window, w); | |
3673 | return window; | |
3674 | } | |
3675 | \f | |
880e6158 MR |
3676 | DEFUN ("set-window-new-pixel", Fset_window_new_pixel, Sset_window_new_pixel, 2, 3, 0, |
3677 | doc: /* Set new pixel size of WINDOW to SIZE. | |
3678 | WINDOW must be a valid window and defaults to the selected one. | |
3679 | Return SIZE. | |
3680 | ||
3681 | Optional argument ADD non-nil means add SIZE to the new pixel size of | |
3682 | WINDOW and return the sum. | |
3683 | ||
3684 | Note: This function does not operate on any child windows of WINDOW. */) | |
3685 | (Lisp_Object window, Lisp_Object size, Lisp_Object add) | |
3686 | { | |
3687 | struct window *w = decode_valid_window (window); | |
2654ac09 PE |
3688 | EMACS_INT size_min = NILP (add) ? 0 : - XINT (w->new_pixel); |
3689 | EMACS_INT size_max = size_min + min (INT_MAX, MOST_POSITIVE_FIXNUM); | |
880e6158 | 3690 | |
7303a0ae | 3691 | CHECK_RANGED_INTEGER (size, size_min, size_max); |
880e6158 MR |
3692 | if (NILP (add)) |
3693 | wset_new_pixel (w, size); | |
3694 | else | |
3695 | wset_new_pixel (w, make_number (XINT (w->new_pixel) + XINT (size))); | |
3696 | ||
3697 | return w->new_pixel; | |
3698 | } | |
3699 | ||
496e208e MR |
3700 | DEFUN ("set-window-new-total", Fset_window_new_total, Sset_window_new_total, 2, 3, 0, |
3701 | doc: /* Set new total size of WINDOW to SIZE. | |
52162052 | 3702 | WINDOW must be a valid window and defaults to the selected one. |
496e208e MR |
3703 | Return SIZE. |
3704 | ||
3705 | Optional argument ADD non-nil means add SIZE to the new total size of | |
3706 | WINDOW and return the sum. | |
3707 | ||
be7f5545 | 3708 | Note: This function does not operate on any child windows of WINDOW. */) |
496e208e MR |
3709 | (Lisp_Object window, Lisp_Object size, Lisp_Object add) |
3710 | { | |
52162052 | 3711 | struct window *w = decode_valid_window (window); |
496e208e MR |
3712 | |
3713 | CHECK_NUMBER (size); | |
3714 | if (NILP (add)) | |
e8c17b81 | 3715 | wset_new_total (w, size); |
496e208e | 3716 | else |
e8c17b81 | 3717 | wset_new_total (w, make_number (XINT (w->new_total) + XINT (size))); |
496e208e | 3718 | |
d3d50620 | 3719 | return w->new_total; |
496e208e MR |
3720 | } |
3721 | ||
3722 | DEFUN ("set-window-new-normal", Fset_window_new_normal, Sset_window_new_normal, 1, 2, 0, | |
3723 | doc: /* Set new normal size of WINDOW to SIZE. | |
52162052 | 3724 | WINDOW must be a valid window and defaults to the selected one. |
496e208e MR |
3725 | Return SIZE. |
3726 | ||
be7f5545 | 3727 | Note: This function does not operate on any child windows of WINDOW. */) |
496e208e MR |
3728 | (Lisp_Object window, Lisp_Object size) |
3729 | { | |
e8c17b81 PE |
3730 | wset_new_normal (decode_valid_window (window), size); |
3731 | return size; | |
7ab12479 JB |
3732 | } |
3733 | ||
880e6158 MR |
3734 | /* Return 1 if setting w->pixel_height (w->pixel_width if HORFLAG is |
3735 | non-zero) to w->new_pixel would result in correct heights (widths) | |
be7f5545 | 3736 | for window W and recursively all child windows of W. |
1a13852e MR |
3737 | |
3738 | Note: This function does not check any of `window-fixed-size-p', | |
3739 | `window-min-height' or `window-min-width'. It does check that window | |
3740 | sizes do not drop below one line (two columns). */ | |
4b66faf3 | 3741 | static int |
748fa866 | 3742 | window_resize_check (struct window *w, bool horflag) |
1a13852e | 3743 | { |
880e6158 | 3744 | struct frame *f = XFRAME (w->frame); |
1a13852e MR |
3745 | struct window *c; |
3746 | ||
e74aeda8 | 3747 | if (WINDOW_VERTICAL_COMBINATION_P (w)) |
1a13852e MR |
3748 | /* W is a vertical combination. */ |
3749 | { | |
e74aeda8 | 3750 | c = XWINDOW (w->contents); |
1a13852e | 3751 | if (horflag) |
be7f5545 | 3752 | /* All child windows of W must have the same width as W. */ |
1a13852e MR |
3753 | { |
3754 | while (c) | |
3755 | { | |
880e6158 | 3756 | if (XINT (c->new_pixel) != XINT (w->new_pixel) |
d615d6d2 | 3757 | || !window_resize_check (c, horflag)) |
1a13852e | 3758 | return 0; |
880e6158 | 3759 | |
d3d50620 | 3760 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3761 | } |
880e6158 | 3762 | |
1a13852e MR |
3763 | return 1; |
3764 | } | |
3765 | else | |
be7f5545 MR |
3766 | /* The sum of the heights of the child windows of W must equal |
3767 | W's height. */ | |
1a13852e | 3768 | { |
2654ac09 | 3769 | int remaining_pixels = XINT (w->new_pixel); |
880e6158 | 3770 | |
1a13852e MR |
3771 | while (c) |
3772 | { | |
d615d6d2 | 3773 | if (!window_resize_check (c, horflag)) |
1a13852e | 3774 | return 0; |
880e6158 | 3775 | |
2654ac09 PE |
3776 | remaining_pixels -= XINT (c->new_pixel); |
3777 | if (remaining_pixels < 0) | |
3778 | return 0; | |
d3d50620 | 3779 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3780 | } |
880e6158 | 3781 | |
2654ac09 | 3782 | return remaining_pixels == 0; |
1a13852e MR |
3783 | } |
3784 | } | |
e74aeda8 | 3785 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) |
1a13852e MR |
3786 | /* W is a horizontal combination. */ |
3787 | { | |
e74aeda8 | 3788 | c = XWINDOW (w->contents); |
1a13852e | 3789 | if (horflag) |
be7f5545 | 3790 | /* The sum of the widths of the child windows of W must equal W's |
1a13852e MR |
3791 | width. */ |
3792 | { | |
2654ac09 | 3793 | int remaining_pixels = XINT (w->new_pixel); |
880e6158 | 3794 | |
1a13852e MR |
3795 | while (c) |
3796 | { | |
d615d6d2 | 3797 | if (!window_resize_check (c, horflag)) |
1a13852e | 3798 | return 0; |
880e6158 | 3799 | |
2654ac09 PE |
3800 | remaining_pixels -= XINT (c->new_pixel); |
3801 | if (remaining_pixels < 0) | |
3802 | return 0; | |
d3d50620 | 3803 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3804 | } |
880e6158 | 3805 | |
2654ac09 | 3806 | return remaining_pixels == 0; |
1a13852e MR |
3807 | } |
3808 | else | |
be7f5545 | 3809 | /* All child windows of W must have the same height as W. */ |
1a13852e MR |
3810 | { |
3811 | while (c) | |
3812 | { | |
880e6158 | 3813 | if (XINT (c->new_pixel) != XINT (w->new_pixel) |
d615d6d2 | 3814 | || !window_resize_check (c, horflag)) |
1a13852e | 3815 | return 0; |
880e6158 | 3816 | |
d3d50620 | 3817 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3818 | } |
880e6158 | 3819 | |
1a13852e MR |
3820 | return 1; |
3821 | } | |
3822 | } | |
3823 | else | |
3824 | /* A leaf window. Make sure it's not too small. The following | |
3825 | hardcodes the values of `window-safe-min-width' (2) and | |
3826 | `window-safe-min-height' (1) which are defined in window.el. */ | |
880e6158 MR |
3827 | return (XINT (w->new_pixel) >= (horflag |
3828 | ? (2 * FRAME_COLUMN_WIDTH (f)) | |
3829 | : FRAME_LINE_HEIGHT (f))); | |
1a13852e MR |
3830 | } |
3831 | ||
880e6158 MR |
3832 | |
3833 | /* Set w->pixel_height (w->pixel_height if HORIZONTAL is non-zero) to | |
3834 | w->new_pixel for window W and recursively all child windows of W. | |
3835 | Also calculate and assign the new vertical (horizontal) pixel start | |
be7f5545 | 3836 | positions of each of these windows. |
1a13852e MR |
3837 | |
3838 | This function does not perform any error checks. Make sure you have | |
d615d6d2 | 3839 | run window_resize_check on W before applying this function. */ |
440a42e3 | 3840 | static void |
748fa866 | 3841 | window_resize_apply (struct window *w, bool horflag) |
1a13852e | 3842 | { |
46a4ce9e | 3843 | struct window *c; |
880e6158 MR |
3844 | int edge; |
3845 | int unit = (horflag | |
3846 | ? FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)) | |
3847 | : FRAME_LINE_HEIGHT (WINDOW_XFRAME (w))); | |
1a13852e MR |
3848 | |
3849 | /* Note: Assigning new_normal requires that the new total size of the | |
3850 | parent window has been set *before*. */ | |
3851 | if (horflag) | |
3852 | { | |
880e6158 MR |
3853 | w->pixel_width = XFASTINT (w->new_pixel); |
3854 | w->total_cols = w->pixel_width / unit; | |
d3d50620 | 3855 | if (NUMBERP (w->new_normal)) |
e8c17b81 | 3856 | wset_normal_cols (w, w->new_normal); |
1a13852e | 3857 | |
880e6158 | 3858 | edge = w->pixel_left; |
1a13852e MR |
3859 | } |
3860 | else | |
3861 | { | |
880e6158 MR |
3862 | w->pixel_height = XFASTINT (w->new_pixel); |
3863 | w->total_lines = w->pixel_height / unit; | |
d3d50620 | 3864 | if (NUMBERP (w->new_normal)) |
e8c17b81 | 3865 | wset_normal_lines (w, w->new_normal); |
1a13852e | 3866 | |
880e6158 | 3867 | edge = w->pixel_top; |
1a13852e MR |
3868 | } |
3869 | ||
e74aeda8 | 3870 | if (WINDOW_VERTICAL_COMBINATION_P (w)) |
1a13852e MR |
3871 | /* W is a vertical combination. */ |
3872 | { | |
e74aeda8 | 3873 | c = XWINDOW (w->contents); |
1a13852e MR |
3874 | while (c) |
3875 | { | |
3876 | if (horflag) | |
880e6158 MR |
3877 | { |
3878 | c->pixel_left = edge; | |
3879 | c->left_col = edge / unit; | |
3880 | } | |
1a13852e | 3881 | else |
880e6158 MR |
3882 | { |
3883 | c->pixel_top = edge; | |
3884 | c->top_line = edge / unit; | |
3885 | } | |
d615d6d2 | 3886 | window_resize_apply (c, horflag); |
1a13852e | 3887 | if (!horflag) |
880e6158 MR |
3888 | edge = edge + c->pixel_height; |
3889 | ||
d3d50620 | 3890 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e MR |
3891 | } |
3892 | } | |
e74aeda8 | 3893 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) |
1a13852e MR |
3894 | /* W is a horizontal combination. */ |
3895 | { | |
e74aeda8 | 3896 | c = XWINDOW (w->contents); |
1a13852e MR |
3897 | while (c) |
3898 | { | |
3899 | if (horflag) | |
880e6158 MR |
3900 | { |
3901 | c->pixel_left = edge; | |
3902 | c->left_col = edge / unit; | |
3903 | } | |
1a13852e | 3904 | else |
880e6158 MR |
3905 | { |
3906 | c->pixel_top = edge; | |
3907 | c->top_line = edge / unit; | |
3908 | } | |
3909 | ||
d615d6d2 | 3910 | window_resize_apply (c, horflag); |
1a13852e | 3911 | if (horflag) |
880e6158 MR |
3912 | edge = edge + c->pixel_width; |
3913 | ||
d3d50620 | 3914 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e MR |
3915 | } |
3916 | } | |
72fdd473 MR |
3917 | else |
3918 | /* Bug#15957. */ | |
3919 | w->window_end_valid = 0; | |
1a13852e MR |
3920 | } |
3921 | ||
3922 | ||
880e6158 MR |
3923 | /* Set w->total_lines (w->total_cols if HORIZONTAL is non-zero) to |
3924 | w->new_total for window W and recursively all child windows of W. | |
3925 | Also calculate and assign the new vertical (horizontal) start | |
3926 | positions of each of these windows. */ | |
3927 | static void | |
3928 | window_resize_apply_total (struct window *w, bool horflag) | |
3929 | { | |
3930 | struct window *c; | |
3931 | int edge; | |
3932 | ||
3933 | /* Note: Assigning new_normal requires that the new total size of the | |
3934 | parent window has been set *before*. */ | |
3935 | if (horflag) | |
3936 | { | |
3937 | w->total_cols = XFASTINT (w->new_total); | |
3938 | edge = w->left_col; | |
3939 | } | |
3940 | else | |
3941 | { | |
3942 | w->total_lines = XFASTINT (w->new_total); | |
3943 | edge = w->top_line; | |
3944 | } | |
3945 | ||
3946 | if (WINDOW_VERTICAL_COMBINATION_P (w)) | |
3947 | /* W is a vertical combination. */ | |
3948 | { | |
3949 | c = XWINDOW (w->contents); | |
3950 | while (c) | |
3951 | { | |
3952 | if (horflag) | |
3953 | c->left_col = edge; | |
3954 | else | |
3955 | c->top_line = edge; | |
3956 | ||
3957 | window_resize_apply_total (c, horflag); | |
3958 | if (!horflag) | |
3959 | edge = edge + c->total_lines; | |
3960 | ||
3961 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3962 | } | |
3963 | } | |
3964 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) | |
3965 | /* W is a horizontal combination. */ | |
3966 | { | |
3967 | c = XWINDOW (w->contents); | |
3968 | while (c) | |
3969 | { | |
3970 | if (horflag) | |
3971 | c->left_col = edge; | |
3972 | else | |
3973 | c->top_line = edge; | |
3974 | ||
3975 | window_resize_apply_total (c, horflag); | |
3976 | if (horflag) | |
3977 | edge = edge + c->total_cols; | |
3978 | ||
3979 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3980 | } | |
3981 | } | |
3982 | } | |
3983 | ||
d9f07150 | 3984 | DEFUN ("window-resize-apply", Fwindow_resize_apply, Swindow_resize_apply, 0, 2, 0, |
1a13852e | 3985 | doc: /* Apply requested size values for window-tree of FRAME. |
d9f07150 DA |
3986 | If FRAME is omitted or nil, it defaults to the selected frame. |
3987 | ||
3988 | Optional argument HORIZONTAL omitted or nil means apply requested | |
3989 | height values. HORIZONTAL non-nil means apply requested width values. | |
1a13852e MR |
3990 | |
3991 | This function checks whether the requested values sum up to a valid | |
be7f5545 MR |
3992 | window layout, recursively assigns the new sizes of all child windows |
3993 | and calculates and assigns the new start positions of these windows. | |
1a13852e MR |
3994 | |
3995 | Note: This function does not check any of `window-fixed-size-p', | |
3996 | `window-min-height' or `window-min-width'. All these checks have to | |
3997 | be applied on the Elisp level. */) | |
3998 | (Lisp_Object frame, Lisp_Object horizontal) | |
3999 | { | |
d9f07150 DA |
4000 | struct frame *f = decode_live_frame (frame); |
4001 | struct window *r = XWINDOW (FRAME_ROOT_WINDOW (f)); | |
748fa866 | 4002 | bool horflag = !NILP (horizontal); |
1a13852e | 4003 | |
d615d6d2 | 4004 | if (!window_resize_check (r, horflag) |
880e6158 MR |
4005 | || (XINT (r->new_pixel) |
4006 | != (horflag ? r->pixel_width : r->pixel_height))) | |
1a13852e MR |
4007 | return Qnil; |
4008 | ||
4d7e6e51 | 4009 | block_input (); |
d615d6d2 | 4010 | window_resize_apply (r, horflag); |
1a13852e | 4011 | |
5961ad6c | 4012 | fset_redisplay (f); |
1a13852e MR |
4013 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
4014 | ||
bd0443bb | 4015 | adjust_frame_glyphs (f); |
4d7e6e51 | 4016 | unblock_input (); |
1a13852e | 4017 | |
880e6158 MR |
4018 | return Qt; |
4019 | } | |
4020 | ||
4021 | ||
4022 | DEFUN ("window-resize-apply-total", Fwindow_resize_apply_total, Swindow_resize_apply_total, 0, 2, 0, | |
4023 | doc: /* Apply requested total size values for window-tree of FRAME. | |
4024 | If FRAME is omitted or nil, it defaults to the selected frame. | |
4025 | ||
4026 | This function does not assign pixel or normal size values. You should | |
4027 | have run `window-resize-apply' before running this. | |
4028 | ||
4029 | Optional argument HORIZONTAL omitted or nil means apply requested | |
4030 | height values. HORIZONTAL non-nil means apply requested width | |
4031 | values. */) | |
4032 | (Lisp_Object frame, Lisp_Object horizontal) | |
4033 | { | |
4034 | struct frame *f = decode_live_frame (frame); | |
4035 | struct window *r = XWINDOW (FRAME_ROOT_WINDOW (f)); | |
4036 | ||
4037 | block_input (); | |
4038 | /* Necessary when deleting the top-/or leftmost window. */ | |
4039 | r->left_col = 0; | |
4040 | r->top_line = FRAME_TOP_MARGIN (f); | |
4041 | window_resize_apply_total (r, !NILP (horizontal)); | |
c44de18d MR |
4042 | /* Handle the mini window. */ |
4043 | if (FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f)) | |
4044 | { | |
4045 | struct window *m = XWINDOW (f->minibuffer_window); | |
4046 | ||
4047 | if (NILP (horizontal)) | |
4048 | { | |
4049 | m->top_line = r->top_line + r->total_lines; | |
4050 | m->total_lines = XFASTINT (m->new_total); | |
4051 | } | |
4052 | else | |
4053 | m->total_cols = XFASTINT (m->new_total); | |
4054 | } | |
4055 | ||
880e6158 | 4056 | unblock_input (); |
1a13852e MR |
4057 | |
4058 | return Qt; | |
4059 | } | |
4060 | ||
4061 | ||
4062 | /* Resize frame F's windows when number of lines of F is set to SIZE. | |
4063 | HORFLAG 1 means resize windows when number of columns of F is set to | |
880e6158 | 4064 | SIZE. PIXELWISE 1 means to interpret SIZE as pixels. |
1a13852e MR |
4065 | |
4066 | This function can delete all windows but the selected one in order to | |
4067 | satisfy the request. The result will be meaningful if and only if | |
4068 | F's windows have meaningful sizes when you call this. */ | |
4069 | void | |
880e6158 | 4070 | resize_frame_windows (struct frame *f, int size, bool horflag, bool pixelwise) |
1a13852e | 4071 | { |
e69b0960 | 4072 | Lisp_Object root = f->root_window; |
1a13852e | 4073 | struct window *r = XWINDOW (root); |
e69b0960 | 4074 | Lisp_Object mini = f->minibuffer_window; |
1a13852e | 4075 | struct window *m; |
880e6158 MR |
4076 | /* old_size is the old size of the frame's root window. */ |
4077 | int old_size = horflag ? r->total_cols : r->total_lines; | |
4078 | int old_pixel_size = horflag ? r->pixel_width : r->pixel_height; | |
1a13852e | 4079 | /* new_size is the new size of the frame's root window. */ |
880e6158 | 4080 | int new_size, new_pixel_size; |
0cbab19e | 4081 | int unit = horflag ? FRAME_COLUMN_WIDTH (f) : FRAME_LINE_HEIGHT (f); |
880e6158 | 4082 | |
0cbab19e MR |
4083 | /* Don't let the size drop below one unit. This is more comforting |
4084 | when we are called from x_set_tool_bar_lines since the latter may | |
4085 | have implicitly given us a zero or negative height. */ | |
880e6158 MR |
4086 | if (pixelwise) |
4087 | { | |
7d7ccb88 MR |
4088 | /* Note: This does not include the size for internal borders |
4089 | since these are not part of the frame's text area. */ | |
0cbab19e MR |
4090 | new_pixel_size = max (horflag |
4091 | ? size | |
4092 | : (size | |
4093 | - FRAME_TOP_MARGIN_HEIGHT (f) | |
4094 | - ((FRAME_HAS_MINIBUF_P (f) | |
4095 | && !FRAME_MINIBUF_ONLY_P (f)) | |
4096 | ? FRAME_LINE_HEIGHT (f) : 0)), | |
4097 | unit); | |
4098 | new_size = new_pixel_size / unit; | |
880e6158 | 4099 | } |
6ae87264 | 4100 | else |
880e6158 | 4101 | { |
0cbab19e MR |
4102 | new_size = max (horflag |
4103 | ? size | |
4104 | : (size | |
4105 | - FRAME_TOP_MARGIN (f) | |
4106 | - ((FRAME_HAS_MINIBUF_P (f) | |
4107 | && !FRAME_MINIBUF_ONLY_P (f)) | |
4108 | ? 1 : 0)), | |
4109 | 1); | |
4110 | new_pixel_size = new_size * unit; | |
880e6158 | 4111 | } |
1a13852e | 4112 | |
5f24fa51 | 4113 | r->top_line = FRAME_TOP_MARGIN (f); |
880e6158 MR |
4114 | r->pixel_top = FRAME_TOP_MARGIN_HEIGHT (f); |
4115 | ||
4116 | if (new_pixel_size == old_pixel_size) | |
d94c40c1 | 4117 | ; |
880e6158 | 4118 | else if (WINDOW_LEAF_P (r)) |
1a13852e MR |
4119 | /* For a leaf root window just set the size. */ |
4120 | if (horflag) | |
880e6158 MR |
4121 | { |
4122 | r->total_cols = new_size; | |
4123 | r->pixel_width = new_pixel_size; | |
4124 | } | |
1a13852e | 4125 | else |
880e6158 MR |
4126 | { |
4127 | r->total_lines = new_size; | |
4128 | r->pixel_height = new_pixel_size; | |
4129 | } | |
1a13852e MR |
4130 | else |
4131 | { | |
1a13852e MR |
4132 | Lisp_Object delta; |
4133 | ||
880e6158 MR |
4134 | if (pixelwise) |
4135 | XSETINT (delta, new_pixel_size - old_pixel_size); | |
4136 | else | |
4137 | XSETINT (delta, new_size - old_size); | |
4138 | ||
1a13852e | 4139 | /* Try a "normal" resize first. */ |
880e6158 MR |
4140 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qnil, |
4141 | pixelwise ? Qt : Qnil); | |
3a45383a | 4142 | if (window_resize_check (r, horflag) |
880e6158 MR |
4143 | && new_pixel_size == XINT (r->new_pixel)) |
4144 | { | |
4145 | window_resize_apply (r, horflag); | |
4146 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4147 | } | |
1a13852e MR |
4148 | else |
4149 | { | |
4150 | /* Try with "reasonable" minimum sizes next. */ | |
880e6158 MR |
4151 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qt, |
4152 | pixelwise ? Qt : Qnil); | |
d615d6d2 | 4153 | if (window_resize_check (r, horflag) |
880e6158 MR |
4154 | && new_pixel_size == XINT (r->new_pixel)) |
4155 | { | |
4156 | window_resize_apply (r, horflag); | |
4157 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4158 | } | |
1a13852e MR |
4159 | else |
4160 | { | |
4161 | /* Finally, try with "safe" minimum sizes. */ | |
880e6158 MR |
4162 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qsafe, |
4163 | pixelwise ? Qt : Qnil); | |
d615d6d2 | 4164 | if (window_resize_check (r, horflag) |
880e6158 MR |
4165 | && new_pixel_size == XINT (r->new_pixel)) |
4166 | { | |
4167 | window_resize_apply (r, horflag); | |
4168 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4169 | } | |
0cbab19e | 4170 | #if 0 /* Let's try without killing other windows. */ |
1a13852e MR |
4171 | else |
4172 | { | |
4173 | /* We lost. Delete all windows but the frame's | |
4174 | selected one. */ | |
e69b0960 | 4175 | root = f->selected_window; |
1a13852e MR |
4176 | Fdelete_other_windows_internal (root, Qnil); |
4177 | if (horflag) | |
880e6158 MR |
4178 | { |
4179 | XWINDOW (root)->total_cols = new_size; | |
4180 | XWINDOW (root)->pixel_width = new_pixel_size; | |
4181 | } | |
1a13852e | 4182 | else |
880e6158 MR |
4183 | { |
4184 | XWINDOW (root)->total_lines = new_size; | |
4185 | XWINDOW (root)->pixel_height = new_pixel_size; | |
4186 | } | |
1a13852e | 4187 | } |
0cbab19e | 4188 | #endif /* 0 */ |
1a13852e MR |
4189 | } |
4190 | } | |
4191 | } | |
4192 | ||
4193 | if (FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f)) | |
4194 | { | |
4195 | m = XWINDOW (mini); | |
4196 | if (horflag) | |
880e6158 MR |
4197 | { |
4198 | m->total_cols = size; | |
4199 | m->pixel_width = new_pixel_size; | |
4200 | } | |
1a13852e MR |
4201 | else |
4202 | { | |
4203 | /* Are we sure we always want 1 line here? */ | |
5f24fa51 | 4204 | m->total_lines = 1; |
880e6158 | 4205 | m->pixel_height = FRAME_LINE_HEIGHT (f); |
5f24fa51 | 4206 | m->top_line = r->top_line + r->total_lines; |
880e6158 | 4207 | m->pixel_top = r->pixel_top + r->pixel_height; |
1a13852e MR |
4208 | } |
4209 | } | |
dca778d5 | 4210 | |
5961ad6c | 4211 | fset_redisplay (f); |
1a13852e MR |
4212 | } |
4213 | ||
4214 | ||
4215 | DEFUN ("split-window-internal", Fsplit_window_internal, Ssplit_window_internal, 4, 4, 0, | |
4216 | doc: /* Split window OLD. | |
880e6158 | 4217 | Second argument PIXEL-SIZE specifies the number of pixels of the |
9397e56f | 4218 | new window. In any case TOTAL-SIZE must be a positive integer. |
1a13852e MR |
4219 | |
4220 | Third argument SIDE nil (or `below') specifies that the new window shall | |
4221 | be located below WINDOW. SIDE `above' means the new window shall be | |
880e6158 MR |
4222 | located above WINDOW. In both cases PIXEL-SIZE specifies the pixel |
4223 | height of the new window including space reserved for the mode and/or | |
1a13852e MR |
4224 | header line. |
4225 | ||
4226 | SIDE t (or `right') specifies that the new window shall be located on | |
4227 | the right side of WINDOW. SIDE `left' means the new window shall be | |
880e6158 MR |
4228 | located on the left of WINDOW. In both cases PIXEL-SIZE specifies the |
4229 | width of the new window including space reserved for fringes and the | |
4230 | scrollbar or a divider column. | |
1a13852e MR |
4231 | |
4232 | Fourth argument NORMAL-SIZE specifies the normal size of the new window | |
4233 | according to the SIDE argument. | |
4234 | ||
880e6158 | 4235 | The new pixel and normal sizes of all involved windows must have been |
1a13852e | 4236 | set correctly. See the code of `split-window' for how this is done. */) |
880e6158 | 4237 | (Lisp_Object old, Lisp_Object pixel_size, Lisp_Object side, Lisp_Object normal_size) |
1a13852e MR |
4238 | { |
4239 | /* OLD (*o) is the window we have to split. (*p) is either OLD's | |
4240 | parent window or an internal window we have to install as OLD's new | |
4241 | parent. REFERENCE (*r) must denote a live window, or is set to OLD | |
4242 | provided OLD is a leaf window, or to the frame's selected window. | |
4243 | NEW (*n) is the new window created with some parameters taken from | |
4244 | REFERENCE (*r). */ | |
4245 | register Lisp_Object new, frame, reference; | |
880e6158 | 4246 | register struct window *o, *p, *n, *r, *c; |
1a13852e | 4247 | struct frame *f; |
748fa866 | 4248 | bool horflag |
1a13852e MR |
4249 | /* HORFLAG is 1 when we split side-by-side, 0 otherwise. */ |
4250 | = EQ (side, Qt) || EQ (side, Qleft) || EQ (side, Qright); | |
880e6158 MR |
4251 | int combination_limit = 0, sum = 0; |
4252 | int total_size; | |
1a13852e MR |
4253 | |
4254 | CHECK_WINDOW (old); | |
4255 | o = XWINDOW (old); | |
4256 | frame = WINDOW_FRAME (o); | |
4257 | f = XFRAME (frame); | |
4258 | ||
880e6158 MR |
4259 | CHECK_NUMBER (pixel_size); |
4260 | total_size | |
4261 | = XINT (pixel_size) / (horflag | |
4262 | ? FRAME_COLUMN_WIDTH (f) | |
4263 | : FRAME_LINE_HEIGHT (f)); | |
1a13852e | 4264 | |
b6f67890 MR |
4265 | /* Set combination_limit to 1 if we have to make a new parent window. |
4266 | We do that if either `window-combination-limit' is t, or OLD has no | |
4267 | parent, or OLD is ortho-combined. */ | |
4268 | combination_limit = | |
8e17c9ba | 4269 | EQ (Vwindow_combination_limit, Qt) |
d3d50620 | 4270 | || NILP (o->parent) |
e74aeda8 DA |
4271 | || (horflag |
4272 | ? WINDOW_VERTICAL_COMBINATION_P (XWINDOW (o->parent)) | |
4273 | : WINDOW_HORIZONTAL_COMBINATION_P (XWINDOW (o->parent))); | |
1a13852e MR |
4274 | |
4275 | /* We need a live reference window to initialize some parameters. */ | |
4276 | if (WINDOW_LIVE_P (old)) | |
4277 | /* OLD is live, use it as reference window. */ | |
4278 | reference = old; | |
4279 | else | |
4280 | /* Use the frame's selected window as reference window. */ | |
4281 | reference = FRAME_SELECTED_WINDOW (f); | |
4282 | r = XWINDOW (reference); | |
4283 | ||
4284 | /* The following bugs are caught by `split-window'. */ | |
4285 | if (MINI_WINDOW_P (o)) | |
4286 | error ("Attempt to split minibuffer window"); | |
880e6158 | 4287 | else if (total_size < (horflag ? 2 : 1)) |
1a13852e | 4288 | error ("Size of new window too small (after split)"); |
a0c2d0ae MR |
4289 | else if (!combination_limit && !NILP (Vwindow_combination_resize)) |
4290 | /* `window-combination-resize' non-nil means try to resize OLD's siblings | |
1a13852e MR |
4291 | proportionally. */ |
4292 | { | |
d3d50620 | 4293 | p = XWINDOW (o->parent); |
1a13852e | 4294 | /* Temporarily pretend we split the parent window. */ |
880e6158 MR |
4295 | wset_new_pixel |
4296 | (p, make_number ((horflag ? p->pixel_width : p->pixel_height) | |
4297 | - XINT (pixel_size))); | |
d615d6d2 | 4298 | if (!window_resize_check (p, horflag)) |
1a13852e MR |
4299 | error ("Window sizes don't fit"); |
4300 | else | |
4301 | /* Undo the temporary pretension. */ | |
880e6158 | 4302 | wset_new_pixel (p, make_number (horflag ? p->pixel_width : p->pixel_height)); |
1a13852e MR |
4303 | } |
4304 | else | |
4305 | { | |
d615d6d2 | 4306 | if (!window_resize_check (o, horflag)) |
1a13852e | 4307 | error ("Resizing old window failed"); |
880e6158 MR |
4308 | else if (XINT (pixel_size) + XINT (o->new_pixel) |
4309 | != (horflag ? o->pixel_width : o->pixel_height)) | |
1a13852e MR |
4310 | error ("Sum of sizes of old and new window don't fit"); |
4311 | } | |
4312 | ||
5961ad6c | 4313 | /* This is our point of no return. */ |
b6f67890 | 4314 | if (combination_limit) |
1a13852e MR |
4315 | { |
4316 | /* Save the old value of o->normal_cols/lines. It gets corrupted | |
4317 | by make_parent_window and we need it below for assigning it to | |
4318 | p->new_normal. */ | |
3a45383a | 4319 | Lisp_Object new_normal |
d3d50620 | 4320 | = horflag ? o->normal_cols : o->normal_lines; |
1a13852e MR |
4321 | |
4322 | make_parent_window (old, horflag); | |
d3d50620 | 4323 | p = XWINDOW (o->parent); |
fdaf534a MR |
4324 | if (EQ (Vwindow_combination_limit, Qt)) |
4325 | /* Store t in the new parent's combination_limit slot to avoid | |
4326 | that its children get merged into another window. */ | |
4327 | wset_combination_limit (p, Qt); | |
1a13852e | 4328 | /* These get applied below. */ |
880e6158 MR |
4329 | wset_new_pixel |
4330 | (p, make_number (horflag ? o->pixel_width : o->pixel_height)); | |
4331 | wset_new_total | |
4332 | (p, make_number (horflag ? o->total_cols : o->total_lines)); | |
e8c17b81 | 4333 | wset_new_normal (p, new_normal); |
1a13852e MR |
4334 | } |
4335 | else | |
d3d50620 | 4336 | p = XWINDOW (o->parent); |
1a13852e | 4337 | |
5961ad6c | 4338 | fset_redisplay (f); |
1a13852e MR |
4339 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
4340 | new = make_window (); | |
4341 | n = XWINDOW (new); | |
e8c17b81 PE |
4342 | wset_frame (n, frame); |
4343 | wset_parent (n, o->parent); | |
1a13852e MR |
4344 | |
4345 | if (EQ (side, Qabove) || EQ (side, Qleft)) | |
4346 | { | |
e8c17b81 | 4347 | wset_prev (n, o->prev); |
d3d50620 | 4348 | if (NILP (n->prev)) |
e74aeda8 | 4349 | wset_combination (p, horflag, new); |
1a13852e | 4350 | else |
e8c17b81 PE |
4351 | wset_next (XWINDOW (n->prev), new); |
4352 | wset_next (n, old); | |
4353 | wset_prev (o, new); | |
1a13852e MR |
4354 | } |
4355 | else | |
4356 | { | |
e8c17b81 | 4357 | wset_next (n, o->next); |
d3d50620 | 4358 | if (!NILP (n->next)) |
e8c17b81 PE |
4359 | wset_prev (XWINDOW (n->next), new); |
4360 | wset_prev (n, old); | |
4361 | wset_next (o, new); | |
1a13852e MR |
4362 | } |
4363 | ||
9d93ce29 | 4364 | n->window_end_valid = 0; |
c80016b3 | 4365 | n->last_cursor_vpos = 0; |
1a13852e MR |
4366 | |
4367 | /* Get special geometry settings from reference window. */ | |
eeaf9bf3 DA |
4368 | n->left_margin_cols = r->left_margin_cols; |
4369 | n->right_margin_cols = r->right_margin_cols; | |
9e37ee3b DA |
4370 | n->left_fringe_width = r->left_fringe_width; |
4371 | n->right_fringe_width = r->right_fringe_width; | |
1a13852e | 4372 | n->fringes_outside_margins = r->fringes_outside_margins; |
38a2c910 | 4373 | n->scroll_bar_width = r->scroll_bar_width; |
e8c17b81 | 4374 | wset_vertical_scroll_bar_type (n, r->vertical_scroll_bar_type); |
1a13852e | 4375 | |
1a13852e MR |
4376 | /* Directly assign orthogonal coordinates and sizes. */ |
4377 | if (horflag) | |
4378 | { | |
880e6158 | 4379 | n->pixel_top = o->pixel_top; |
5f24fa51 | 4380 | n->top_line = o->top_line; |
880e6158 | 4381 | n->pixel_height = o->pixel_height; |
5f24fa51 | 4382 | n->total_lines = o->total_lines; |
1a13852e MR |
4383 | } |
4384 | else | |
4385 | { | |
880e6158 | 4386 | n->pixel_left = o->pixel_left; |
5f24fa51 | 4387 | n->left_col = o->left_col; |
880e6158 | 4388 | n->pixel_width = o->pixel_width; |
5f24fa51 | 4389 | n->total_cols = o->total_cols; |
1a13852e MR |
4390 | } |
4391 | ||
d615d6d2 | 4392 | /* Iso-coordinates and sizes are assigned by window_resize_apply, |
1a13852e | 4393 | get them ready here. */ |
880e6158 MR |
4394 | wset_new_pixel (n, pixel_size); |
4395 | c = XWINDOW (p->contents); | |
4396 | while (c) | |
4397 | { | |
4398 | if (c != n) | |
4399 | sum = sum + XINT (c->new_total); | |
4400 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
4401 | } | |
4402 | wset_new_total (n, make_number ((horflag | |
4403 | ? p->total_cols | |
4404 | : p->total_lines) | |
4405 | - sum)); | |
e8c17b81 | 4406 | wset_new_normal (n, normal_size); |
1a13852e | 4407 | |
4d7e6e51 | 4408 | block_input (); |
d615d6d2 | 4409 | window_resize_apply (p, horflag); |
bd0443bb | 4410 | adjust_frame_glyphs (f); |
1a13852e MR |
4411 | /* Set buffer of NEW to buffer of reference window. Don't run |
4412 | any hooks. */ | |
e74aeda8 | 4413 | set_window_buffer (new, r->contents, 0, 1); |
4d7e6e51 | 4414 | unblock_input (); |
1a13852e MR |
4415 | |
4416 | /* Maybe we should run the scroll functions in Elisp (which already | |
4417 | runs the configuration change hook). */ | |
4418 | if (! NILP (Vwindow_scroll_functions)) | |
4419 | run_hook_with_args_2 (Qwindow_scroll_functions, new, | |
d3d50620 | 4420 | Fmarker_position (n->start)); |
1a13852e MR |
4421 | /* Return NEW. */ |
4422 | return new; | |
4423 | } | |
4424 | ||
4425 | ||
4426 | DEFUN ("delete-window-internal", Fdelete_window_internal, Sdelete_window_internal, 1, 1, 0, | |
4427 | doc: /* Remove WINDOW from its frame. | |
87e68db4 JB |
4428 | WINDOW defaults to the selected window. Return nil. |
4429 | Signal an error when WINDOW is the only window on its frame. */) | |
1a13852e MR |
4430 | (register Lisp_Object window) |
4431 | { | |
4432 | register Lisp_Object parent, sibling, frame, root; | |
4433 | struct window *w, *p, *s, *r; | |
4434 | struct frame *f; | |
e74aeda8 | 4435 | bool horflag, before_sibling = 0; |
1a13852e MR |
4436 | |
4437 | w = decode_any_window (window); | |
4438 | XSETWINDOW (window, w); | |
e74aeda8 | 4439 | if (NILP (w->contents)) |
1a13852e MR |
4440 | /* It's a no-op to delete an already deleted window. */ |
4441 | return Qnil; | |
4442 | ||
d3d50620 | 4443 | parent = w->parent; |
1a13852e MR |
4444 | if (NILP (parent)) |
4445 | /* Never delete a minibuffer or frame root window. */ | |
4446 | error ("Attempt to delete minibuffer or sole ordinary window"); | |
d3d50620 | 4447 | else if (NILP (w->prev) && NILP (w->next)) |
1a13852e MR |
4448 | /* Rather bow out here, this case should be handled on the Elisp |
4449 | level. */ | |
4450 | error ("Attempt to delete sole window of parent"); | |
4451 | ||
4452 | p = XWINDOW (parent); | |
e74aeda8 | 4453 | horflag = WINDOW_HORIZONTAL_COMBINATION_P (p); |
1a13852e MR |
4454 | |
4455 | frame = WINDOW_FRAME (w); | |
4456 | f = XFRAME (frame); | |
4457 | ||
4458 | root = FRAME_ROOT_WINDOW (f); | |
4459 | r = XWINDOW (root); | |
4460 | ||
4461 | /* Unlink WINDOW from window tree. */ | |
d3d50620 | 4462 | if (NILP (w->prev)) |
1a13852e MR |
4463 | /* Get SIBLING below (on the right of) WINDOW. */ |
4464 | { | |
4465 | /* before_sibling 1 means WINDOW is the first child of its | |
4466 | parent and thus before the sibling. */ | |
4467 | before_sibling = 1; | |
d3d50620 | 4468 | sibling = w->next; |
1a13852e | 4469 | s = XWINDOW (sibling); |
e8c17b81 | 4470 | wset_prev (s, Qnil); |
e74aeda8 | 4471 | wset_combination (p, horflag, sibling); |
1a13852e MR |
4472 | } |
4473 | else | |
4474 | /* Get SIBLING above (on the left of) WINDOW. */ | |
4475 | { | |
d3d50620 | 4476 | sibling = w->prev; |
1a13852e | 4477 | s = XWINDOW (sibling); |
e8c17b81 | 4478 | wset_next (s, w->next); |
d3d50620 | 4479 | if (!NILP (s->next)) |
e8c17b81 | 4480 | wset_prev (XWINDOW (s->next), sibling); |
7ab12479 JB |
4481 | } |
4482 | ||
d615d6d2 | 4483 | if (window_resize_check (r, horflag) |
880e6158 MR |
4484 | && (XINT (r->new_pixel) |
4485 | == (horflag ? r->pixel_width : r->pixel_height))) | |
562dd5e9 MR |
4486 | /* We can delete WINDOW now. */ |
4487 | { | |
95986d52 | 4488 | |
562dd5e9 | 4489 | /* Block input. */ |
4d7e6e51 | 4490 | block_input (); |
d615d6d2 | 4491 | window_resize_apply (p, horflag); |
95986d52 CY |
4492 | /* If this window is referred to by the dpyinfo's mouse |
4493 | highlight, invalidate that slot to be safe (Bug#9904). */ | |
4c5501e9 EZ |
4494 | if (!FRAME_INITIAL_P (f)) |
4495 | { | |
4496 | Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f); | |
4497 | ||
4498 | if (EQ (hlinfo->mouse_face_window, window)) | |
4499 | hlinfo->mouse_face_window = Qnil; | |
4500 | } | |
95986d52 | 4501 | |
5961ad6c | 4502 | fset_redisplay (f); |
562dd5e9 MR |
4503 | Vwindow_list = Qnil; |
4504 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; | |
0d384044 | 4505 | |
e8c17b81 | 4506 | wset_next (w, Qnil); /* Don't delete w->next too. */ |
562dd5e9 | 4507 | free_window_matrices (w); |
bd99e242 | 4508 | |
e74aeda8 | 4509 | if (WINDOWP (w->contents)) |
0d384044 | 4510 | { |
e74aeda8 DA |
4511 | delete_all_child_windows (w->contents); |
4512 | wset_combination (w, 0, Qnil); | |
0d384044 | 4513 | } |
e74aeda8 | 4514 | else |
bd99e242 | 4515 | { |
562dd5e9 | 4516 | unshow_buffer (w); |
d3d50620 DA |
4517 | unchain_marker (XMARKER (w->pointm)); |
4518 | unchain_marker (XMARKER (w->start)); | |
e8c17b81 | 4519 | wset_buffer (w, Qnil); |
bd99e242 RS |
4520 | } |
4521 | ||
d3d50620 | 4522 | if (NILP (s->prev) && NILP (s->next)) |
562dd5e9 MR |
4523 | /* A matrjoshka where SIBLING has become the only child of |
4524 | PARENT. */ | |
c32de52a | 4525 | { |
562dd5e9 MR |
4526 | /* Put SIBLING into PARENT's place. */ |
4527 | replace_window (parent, sibling, 0); | |
4528 | /* Have SIBLING inherit the following three slot values from | |
b6f67890 | 4529 | PARENT (the combination_limit slot is not inherited). */ |
e8c17b81 PE |
4530 | wset_normal_cols (s, p->normal_cols); |
4531 | wset_normal_lines (s, p->normal_lines); | |
562dd5e9 | 4532 | /* Mark PARENT as deleted. */ |
e74aeda8 | 4533 | wset_combination (p, 0, Qnil); |
562dd5e9 MR |
4534 | /* Try to merge SIBLING into its new parent. */ |
4535 | recombine_windows (sibling); | |
c32de52a RS |
4536 | } |
4537 | ||
bd0443bb | 4538 | adjust_frame_glyphs (f); |
562dd5e9 MR |
4539 | |
4540 | if (!WINDOW_LIVE_P (FRAME_SELECTED_WINDOW (f))) | |
4541 | /* We deleted the frame's selected window. */ | |
0d384044 | 4542 | { |
562dd5e9 MR |
4543 | /* Use the frame's first window as fallback ... */ |
4544 | Lisp_Object new_selected_window = Fframe_first_window (frame); | |
4545 | /* ... but preferably use its most recently used window. */ | |
4546 | Lisp_Object mru_window; | |
0d384044 | 4547 | |
562dd5e9 MR |
4548 | /* `get-mru-window' might fail for some reason so play it safe |
4549 | - promote the first window _without recording it_ first. */ | |
4550 | if (EQ (FRAME_SELECTED_WINDOW (f), selected_window)) | |
4551 | Fselect_window (new_selected_window, Qt); | |
4552 | else | |
f00af5b1 | 4553 | fset_selected_window (f, new_selected_window); |
0d384044 | 4554 | |
4d7e6e51 | 4555 | unblock_input (); |
0d384044 | 4556 | |
562dd5e9 MR |
4557 | /* Now look whether `get-mru-window' gets us something. */ |
4558 | mru_window = call1 (Qget_mru_window, frame); | |
4559 | if (WINDOW_LIVE_P (mru_window) | |
d3d50620 | 4560 | && EQ (XWINDOW (mru_window)->frame, frame)) |
562dd5e9 | 4561 | new_selected_window = mru_window; |
bd99e242 | 4562 | |
562dd5e9 MR |
4563 | /* If all ended up well, we now promote the mru window. */ |
4564 | if (EQ (FRAME_SELECTED_WINDOW (f), selected_window)) | |
4565 | Fselect_window (new_selected_window, Qnil); | |
4566 | else | |
f00af5b1 | 4567 | fset_selected_window (f, new_selected_window); |
0d384044 RS |
4568 | } |
4569 | else | |
4d7e6e51 | 4570 | unblock_input (); |
0d384044 | 4571 | |
562dd5e9 MR |
4572 | /* Must be run by the caller: |
4573 | run_window_configuration_change_hook (f); */ | |
0d384044 | 4574 | } |
562dd5e9 MR |
4575 | else |
4576 | /* We failed: Relink WINDOW into window tree. */ | |
0d384044 | 4577 | { |
562dd5e9 MR |
4578 | if (before_sibling) |
4579 | { | |
e8c17b81 | 4580 | wset_prev (s, window); |
e74aeda8 | 4581 | wset_combination (p, horflag, window); |
562dd5e9 MR |
4582 | } |
4583 | else | |
4584 | { | |
e8c17b81 | 4585 | wset_next (s, window); |
d3d50620 | 4586 | if (!NILP (w->next)) |
e8c17b81 | 4587 | wset_prev (XWINDOW (w->next), window); |
562dd5e9 MR |
4588 | } |
4589 | error ("Deletion failed"); | |
0d384044 RS |
4590 | } |
4591 | ||
0d384044 RS |
4592 | return Qnil; |
4593 | } | |
f984d4fc GM |
4594 | \f |
4595 | /*********************************************************************** | |
4596 | Resizing Mini-Windows | |
4597 | ***********************************************************************/ | |
4598 | ||
562dd5e9 MR |
4599 | /* Grow mini-window W by DELTA lines, DELTA >= 0, or as much as we |
4600 | can. */ | |
4601 | void | |
880e6158 | 4602 | grow_mini_window (struct window *w, int delta, bool pixelwise) |
f984d4fc | 4603 | { |
d3d50620 | 4604 | struct frame *f = XFRAME (w->frame); |
562dd5e9 | 4605 | struct window *r; |
880e6158 MR |
4606 | Lisp_Object root, height; |
4607 | int line_height, pixel_height; | |
f984d4fc | 4608 | |
a54e2c05 DA |
4609 | eassert (MINI_WINDOW_P (w)); |
4610 | eassert (delta >= 0); | |
f984d4fc | 4611 | |
880e6158 | 4612 | if (delta > 0) |
f984d4fc | 4613 | { |
880e6158 MR |
4614 | root = FRAME_ROOT_WINDOW (f); |
4615 | r = XWINDOW (root); | |
4616 | height = call3 (Qwindow_resize_root_window_vertically, | |
4617 | root, make_number (- delta), pixelwise ? Qt : Qnil); | |
4618 | if (INTEGERP (height) && window_resize_check (r, 0)) | |
4619 | { | |
4620 | block_input (); | |
4621 | window_resize_apply (r, 0); | |
f984d4fc | 4622 | |
880e6158 MR |
4623 | if (pixelwise) |
4624 | { | |
91415fb1 | 4625 | pixel_height = min (-XINT (height), INT_MAX - w->pixel_height); |
880e6158 MR |
4626 | line_height = pixel_height / FRAME_LINE_HEIGHT (f); |
4627 | } | |
4628 | else | |
4629 | { | |
91415fb1 MR |
4630 | line_height = min (-XINT (height), |
4631 | ((INT_MAX - w->pixel_height) | |
4632 | / FRAME_LINE_HEIGHT (f))); | |
880e6158 MR |
4633 | pixel_height = line_height * FRAME_LINE_HEIGHT (f); |
4634 | } | |
4635 | ||
4636 | /* Grow the mini-window. */ | |
4637 | w->pixel_top = r->pixel_top + r->pixel_height; | |
4638 | w->top_line = r->top_line + r->total_lines; | |
91415fb1 MR |
4639 | /* Make sure the mini-window has always at least one line. */ |
4640 | w->pixel_height = max (w->pixel_height + pixel_height, | |
4641 | FRAME_LINE_HEIGHT (f)); | |
4642 | w->total_lines = max (w->total_lines + line_height, 1); | |
880e6158 MR |
4643 | |
4644 | /* Enforce full redisplay of the frame. */ | |
4645 | /* FIXME: Shouldn't window--resize-root-window-vertically do it? */ | |
4646 | fset_redisplay (f); | |
4647 | adjust_frame_glyphs (f); | |
4648 | unblock_input (); | |
4649 | } | |
f984d4fc GM |
4650 | } |
4651 | } | |
4652 | ||
880e6158 | 4653 | /* Shrink mini-window W to one line. */ |
562dd5e9 | 4654 | void |
880e6158 | 4655 | shrink_mini_window (struct window *w, bool pixelwise) |
f984d4fc | 4656 | { |
d3d50620 | 4657 | struct frame *f = XFRAME (w->frame); |
562dd5e9 | 4658 | struct window *r; |
880e6158 MR |
4659 | Lisp_Object root, delta; |
4660 | EMACS_INT height, unit; | |
43b4a21f | 4661 | |
a54e2c05 | 4662 | eassert (MINI_WINDOW_P (w)); |
177c0ea7 | 4663 | |
6ae87264 | 4664 | height = pixelwise ? w->pixel_height : w->total_lines; |
880e6158 MR |
4665 | unit = pixelwise ? FRAME_LINE_HEIGHT (f) : 1; |
4666 | if (height > unit) | |
562dd5e9 MR |
4667 | { |
4668 | root = FRAME_ROOT_WINDOW (f); | |
4669 | r = XWINDOW (root); | |
880e6158 MR |
4670 | delta = call3 (Qwindow_resize_root_window_vertically, |
4671 | root, make_number (height - unit), | |
4672 | pixelwise ? Qt : Qnil); | |
4673 | if (INTEGERP (delta) && window_resize_check (r, 0)) | |
f984d4fc | 4674 | { |
4d7e6e51 | 4675 | block_input (); |
d615d6d2 | 4676 | window_resize_apply (r, 0); |
43b4a21f | 4677 | |
562dd5e9 | 4678 | /* Shrink the mini-window. */ |
5f24fa51 DA |
4679 | w->top_line = r->top_line + r->total_lines; |
4680 | w->total_lines = 1; | |
880e6158 MR |
4681 | w->pixel_top = r->pixel_top + r->pixel_height; |
4682 | w->pixel_height = FRAME_LINE_HEIGHT (f); | |
655ab9a3 SM |
4683 | /* Enforce full redisplay of the frame. */ |
4684 | /* FIXME: Shouldn't window--resize-root-window-vertically do it? */ | |
4685 | fset_redisplay (f); | |
bd0443bb | 4686 | adjust_frame_glyphs (f); |
4d7e6e51 | 4687 | unblock_input (); |
f984d4fc | 4688 | } |
562dd5e9 MR |
4689 | /* If the above failed for whatever strange reason we must make a |
4690 | one window frame here. The same routine will be needed when | |
4691 | shrinking the frame (and probably when making the initial | |
4692 | *scratch* window). For the moment leave things as they are. */ | |
f984d4fc GM |
4693 | } |
4694 | } | |
4695 | ||
562dd5e9 MR |
4696 | DEFUN ("resize-mini-window-internal", Fresize_mini_window_internal, Sresize_mini_window_internal, 1, 1, 0, |
4697 | doc: /* Resize minibuffer window WINDOW. */) | |
4698 | (Lisp_Object window) | |
f984d4fc | 4699 | { |
562dd5e9 MR |
4700 | struct window *w = XWINDOW (window); |
4701 | struct window *r; | |
4702 | struct frame *f; | |
4703 | int height; | |
177c0ea7 | 4704 | |
562dd5e9 | 4705 | CHECK_WINDOW (window); |
d3d50620 | 4706 | f = XFRAME (w->frame); |
177c0ea7 | 4707 | |
d3d50620 | 4708 | if (!EQ (FRAME_MINIBUF_WINDOW (XFRAME (w->frame)), window)) |
562dd5e9 MR |
4709 | error ("Not a valid minibuffer window"); |
4710 | else if (FRAME_MINIBUF_ONLY_P (f)) | |
4711 | error ("Cannot resize a minibuffer-only frame"); | |
177c0ea7 | 4712 | |
562dd5e9 | 4713 | r = XWINDOW (FRAME_ROOT_WINDOW (f)); |
880e6158 | 4714 | height = r->pixel_height + w->pixel_height; |
d615d6d2 | 4715 | if (window_resize_check (r, 0) |
880e6158 MR |
4716 | && XINT (w->new_pixel) > 0 |
4717 | && height == XINT (r->new_pixel) + XINT (w->new_pixel)) | |
f984d4fc | 4718 | { |
4d7e6e51 | 4719 | block_input (); |
d615d6d2 | 4720 | window_resize_apply (r, 0); |
f984d4fc | 4721 | |
5f24fa51 DA |
4722 | w->total_lines = XFASTINT (w->new_total); |
4723 | w->top_line = r->top_line + r->total_lines; | |
880e6158 MR |
4724 | w->pixel_height = XFASTINT (w->new_pixel); |
4725 | w->pixel_top = r->pixel_top + r->pixel_height; | |
177c0ea7 | 4726 | |
5961ad6c | 4727 | fset_redisplay (f); |
562dd5e9 | 4728 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
bd0443bb | 4729 | adjust_frame_glyphs (f); |
4d7e6e51 | 4730 | unblock_input (); |
562dd5e9 | 4731 | return Qt; |
86c8e823 | 4732 | } |
880e6158 MR |
4733 | else |
4734 | error ("Failed to resize minibuffer window"); | |
f984d4fc | 4735 | } |
562dd5e9 | 4736 | \f |
5500c422 GM |
4737 | /* Mark window cursors off for all windows in the window tree rooted |
4738 | at W by setting their phys_cursor_on_p flag to zero. Called from | |
4739 | xterm.c, e.g. when a frame is cleared and thereby all cursors on | |
4740 | the frame are cleared. */ | |
4741 | ||
4742 | void | |
971de7fb | 4743 | mark_window_cursors_off (struct window *w) |
5500c422 GM |
4744 | { |
4745 | while (w) | |
4746 | { | |
e74aeda8 DA |
4747 | if (WINDOWP (w->contents)) |
4748 | mark_window_cursors_off (XWINDOW (w->contents)); | |
5500c422 GM |
4749 | else |
4750 | w->phys_cursor_on_p = 0; | |
4751 | ||
d3d50620 | 4752 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
5500c422 GM |
4753 | } |
4754 | } | |
4755 | ||
4756 | ||
e9c195b1 | 4757 | /* Return number of lines of text (not counting mode lines) in W. */ |
7ab12479 JB |
4758 | |
4759 | int | |
971de7fb | 4760 | window_internal_height (struct window *w) |
7ab12479 | 4761 | { |
5f24fa51 | 4762 | int ht = w->total_lines; |
7ab12479 | 4763 | |
e9c195b1 GM |
4764 | if (!MINI_WINDOW_P (w)) |
4765 | { | |
d3d50620 | 4766 | if (!NILP (w->parent) |
e74aeda8 | 4767 | || WINDOWP (w->contents) |
d3d50620 DA |
4768 | || !NILP (w->next) |
4769 | || !NILP (w->prev) | |
e9c195b1 GM |
4770 | || WINDOW_WANTS_MODELINE_P (w)) |
4771 | --ht; | |
7ab12479 | 4772 | |
e9c195b1 GM |
4773 | if (WINDOW_WANTS_HEADER_LINE_P (w)) |
4774 | --ht; | |
4775 | } | |
7ab12479 JB |
4776 | |
4777 | return ht; | |
4778 | } | |
5500c422 GM |
4779 | \f |
4780 | /************************************************************************ | |
4781 | Window Scrolling | |
4782 | ***********************************************************************/ | |
535e0b8e | 4783 | |
5500c422 | 4784 | /* Scroll contents of window WINDOW up. If WHOLE is non-zero, scroll |
d4e7cf01 | 4785 | N screen-fulls, which is defined as the height of the window minus |
5500c422 GM |
4786 | next_screen_context_lines. If WHOLE is zero, scroll up N lines |
4787 | instead. Negative values of N mean scroll down. NOERROR non-zero | |
4788 | means don't signal an error if we try to move over BEGV or ZV, | |
4789 | respectively. */ | |
7ab12479 | 4790 | |
101d1605 | 4791 | static void |
56b5d5b1 | 4792 | window_scroll (Lisp_Object window, EMACS_INT n, bool whole, int noerror) |
5500c422 | 4793 | { |
cba59f77 | 4794 | immediate_quit = 1; |
d311d28c | 4795 | n = clip_to_bounds (INT_MIN, n, INT_MAX); |
cba59f77 | 4796 | |
5961ad6c SM |
4797 | wset_redisplay (XWINDOW (window)); |
4798 | ||
5500c422 GM |
4799 | /* If we must, use the pixel-based version which is much slower than |
4800 | the line-based one but can handle varying line heights. */ | |
d3d50620 | 4801 | if (FRAME_WINDOW_P (XFRAME (XWINDOW (window)->frame))) |
5500c422 GM |
4802 | window_scroll_pixel_based (window, n, whole, noerror); |
4803 | else | |
4804 | window_scroll_line_based (window, n, whole, noerror); | |
cba59f77 | 4805 | |
72fdd473 MR |
4806 | /* Bug#15957. */ |
4807 | XWINDOW (window)->window_end_valid = 0; | |
cba59f77 | 4808 | immediate_quit = 0; |
5500c422 GM |
4809 | } |
4810 | ||
4811 | ||
4812 | /* Implementation of window_scroll that works based on pixel line | |
4813 | heights. See the comment of window_scroll for parameter | |
4814 | descriptions. */ | |
4815 | ||
4816 | static void | |
56b5d5b1 | 4817 | window_scroll_pixel_based (Lisp_Object window, int n, bool whole, int noerror) |
5500c422 GM |
4818 | { |
4819 | struct it it; | |
4820 | struct window *w = XWINDOW (window); | |
4821 | struct text_pos start; | |
5500c422 | 4822 | int this_scroll_margin; |
9d14503e | 4823 | /* True if we fiddled the window vscroll field without really scrolling. */ |
5cdb3cf3 | 4824 | int vscrolled = 0; |
5a857365 | 4825 | int x, y, rtop, rbot, rowh, vpos; |
57b3e30b | 4826 | void *itdata = NULL; |
fdda0220 EZ |
4827 | int window_total_lines; |
4828 | int frame_line_height = default_line_pixel_height (w); | |
5500c422 | 4829 | |
d3d50620 | 4830 | SET_TEXT_POS_FROM_MARKER (start, w->start); |
f0ee99a0 EZ |
4831 | /* Scrolling a minibuffer window via scroll bar when the echo area |
4832 | shows long text sometimes resets the minibuffer contents behind | |
4833 | our backs. */ | |
4834 | if (CHARPOS (start) > ZV) | |
4835 | SET_TEXT_POS (start, BEGV, BEGV_BYTE); | |
177c0ea7 | 4836 | |
5500c422 | 4837 | /* If PT is not visible in WINDOW, move back one half of |
288d4e06 GM |
4838 | the screen. Allow PT to be partially visible, otherwise |
4839 | something like (scroll-down 1) with PT in the line before | |
4840 | the partially visible one would recenter. */ | |
5a857365 KS |
4841 | |
4842 | if (!pos_visible_p (w, PT, &x, &y, &rtop, &rbot, &rowh, &vpos)) | |
5500c422 | 4843 | { |
57b3e30b | 4844 | itdata = bidi_shelve_cache (); |
5500c422 GM |
4845 | /* Move backward half the height of the window. Performance note: |
4846 | vmotion used here is about 10% faster, but would give wrong | |
4847 | results for variable height lines. */ | |
4848 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
4849 | it.current_y = it.last_visible_y; | |
f204989e | 4850 | move_it_vertically_backward (&it, window_box_height (w) / 2); |
177c0ea7 | 4851 | |
5500c422 GM |
4852 | /* The function move_iterator_vertically may move over more than |
4853 | the specified y-distance. If it->w is small, e.g. a | |
4854 | mini-buffer window, we may end up in front of the window's | |
4855 | display area. This is the case when Start displaying at the | |
4856 | start of the line containing PT in this case. */ | |
4857 | if (it.current_y <= 0) | |
4858 | { | |
4859 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
f204989e | 4860 | move_it_vertically_backward (&it, 0); |
5500c422 GM |
4861 | it.current_y = 0; |
4862 | } | |
4863 | ||
4864 | start = it.current.pos; | |
35928349 | 4865 | bidi_unshelve_cache (itdata, 0); |
5500c422 | 4866 | } |
e56263e5 KS |
4867 | else if (auto_window_vscroll_p) |
4868 | { | |
5a857365 | 4869 | if (rtop || rbot) /* partially visible */ |
e56263e5 KS |
4870 | { |
4871 | int px; | |
fdda0220 | 4872 | int dy = frame_line_height; |
e56263e5 | 4873 | if (whole) |
e856c216 KS |
4874 | dy = max ((window_box_height (w) |
4875 | - next_screen_context_lines * dy), | |
4876 | dy); | |
e56263e5 KS |
4877 | dy *= n; |
4878 | ||
5a857365 | 4879 | if (n < 0) |
e56263e5 | 4880 | { |
5a857365 KS |
4881 | /* Only vscroll backwards if already vscrolled forwards. */ |
4882 | if (w->vscroll < 0 && rtop > 0) | |
4883 | { | |
4884 | px = max (0, -w->vscroll - min (rtop, -dy)); | |
4885 | Fset_window_vscroll (window, make_number (px), Qt); | |
4886 | return; | |
4887 | } | |
e56263e5 | 4888 | } |
5a857365 | 4889 | if (n > 0) |
e56263e5 | 4890 | { |
5a857365 KS |
4891 | /* Do vscroll if already vscrolled or only display line. */ |
4892 | if (rbot > 0 && (w->vscroll < 0 || vpos == 0)) | |
4893 | { | |
4894 | px = max (0, -w->vscroll + min (rbot, dy)); | |
4895 | Fset_window_vscroll (window, make_number (px), Qt); | |
4896 | return; | |
4897 | } | |
4898 | ||
4899 | /* Maybe modify window start instead of scrolling. */ | |
4900 | if (rbot > 0 || w->vscroll < 0) | |
4901 | { | |
d311d28c | 4902 | ptrdiff_t spos; |
5a857365 KS |
4903 | |
4904 | Fset_window_vscroll (window, make_number (0), Qt); | |
4905 | /* If there are other text lines above the current row, | |
4906 | move window start to current row. Else to next row. */ | |
4907 | if (rbot > 0) | |
4908 | spos = XINT (Fline_beginning_position (Qnil)); | |
4909 | else | |
4910 | spos = min (XINT (Fline_end_position (Qnil)) + 1, ZV); | |
d3d50620 | 4911 | set_marker_restricted (w->start, make_number (spos), |
e74aeda8 | 4912 | w->contents); |
c98ff5dd DA |
4913 | w->start_at_line_beg = 1; |
4914 | w->update_mode_line = 1; | |
5a857365 KS |
4915 | /* Set force_start so that redisplay_window will run the |
4916 | window-scroll-functions. */ | |
c98ff5dd | 4917 | w->force_start = 1; |
5a857365 KS |
4918 | return; |
4919 | } | |
e56263e5 KS |
4920 | } |
4921 | } | |
5a857365 | 4922 | /* Cancel previous vscroll. */ |
e56263e5 KS |
4923 | Fset_window_vscroll (window, make_number (0), Qt); |
4924 | } | |
5500c422 | 4925 | |
57b3e30b | 4926 | itdata = bidi_shelve_cache (); |
d0c38d63 | 4927 | /* If scroll_preserve_screen_position is non-nil, we try to set |
5500c422 GM |
4928 | point in the same window line as it is now, so get that line. */ |
4929 | if (!NILP (Vscroll_preserve_screen_position)) | |
4930 | { | |
c525d842 | 4931 | /* We preserve the goal pixel coordinate across consecutive |
a4b000fb JL |
4932 | calls to scroll-up, scroll-down and other commands that |
4933 | have the `scroll-command' property. This avoids the | |
c525d842 CY |
4934 | possibility of point becoming "stuck" on a tall line when |
4935 | scrolling by one line. */ | |
66fe93d1 | 4936 | if (window_scroll_pixel_based_preserve_y < 0 |
1344aad4 TT |
4937 | || !SYMBOLP (KVAR (current_kboard, Vlast_command)) |
4938 | || NILP (Fget (KVAR (current_kboard, Vlast_command), Qscroll_command))) | |
c525d842 CY |
4939 | { |
4940 | start_display (&it, w, start); | |
4941 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
66fe93d1 | 4942 | window_scroll_pixel_based_preserve_y = it.current_y; |
c876b227 | 4943 | window_scroll_pixel_based_preserve_x = it.current_x; |
c525d842 | 4944 | } |
5500c422 GM |
4945 | } |
4946 | else | |
c876b227 SM |
4947 | window_scroll_pixel_based_preserve_y |
4948 | = window_scroll_pixel_based_preserve_x = -1; | |
5500c422 GM |
4949 | |
4950 | /* Move iterator it from start the specified distance forward or | |
4951 | backward. The result is the new window start. */ | |
4952 | start_display (&it, w, start); | |
4953 | if (whole) | |
4954 | { | |
d311d28c | 4955 | ptrdiff_t start_pos = IT_CHARPOS (it); |
fdda0220 | 4956 | int dy = frame_line_height; |
e856c216 KS |
4957 | dy = max ((window_box_height (w) |
4958 | - next_screen_context_lines * dy), | |
4959 | dy) * n; | |
d72340d4 GM |
4960 | |
4961 | /* Note that move_it_vertically always moves the iterator to the | |
4962 | start of a line. So, if the last line doesn't have a newline, | |
4963 | we would end up at the start of the line ending at ZV. */ | |
4964 | if (dy <= 0) | |
e856c216 KS |
4965 | { |
4966 | move_it_vertically_backward (&it, -dy); | |
5a857365 | 4967 | /* Ensure we actually do move, e.g. in case we are currently |
e856c216 KS |
4968 | looking at an image that is taller that the window height. */ |
4969 | while (start_pos == IT_CHARPOS (it) | |
4970 | && start_pos > BEGV) | |
e4cc2dfc | 4971 | move_it_by_lines (&it, -1); |
e856c216 | 4972 | } |
d72340d4 | 4973 | else if (dy > 0) |
bed83ee4 | 4974 | { |
bed83ee4 KS |
4975 | move_it_to (&it, ZV, -1, it.current_y + dy, -1, |
4976 | MOVE_TO_POS | MOVE_TO_Y); | |
5a857365 | 4977 | /* Ensure we actually do move, e.g. in case we are currently |
bed83ee4 KS |
4978 | looking at an image that is taller that the window height. */ |
4979 | while (start_pos == IT_CHARPOS (it) | |
4980 | && start_pos < ZV) | |
e4cc2dfc | 4981 | move_it_by_lines (&it, 1); |
bed83ee4 | 4982 | } |
5500c422 GM |
4983 | } |
4984 | else | |
e4cc2dfc | 4985 | move_it_by_lines (&it, n); |
5500c422 | 4986 | |
96ae58c8 RS |
4987 | /* We failed if we find ZV is already on the screen (scrolling up, |
4988 | means there's nothing past the end), or if we can't start any | |
4989 | earlier (scrolling down, means there's nothing past the top). */ | |
5500c422 | 4990 | if ((n > 0 && IT_CHARPOS (it) == ZV) |
96ae58c8 | 4991 | || (n < 0 && IT_CHARPOS (it) == CHARPOS (start))) |
5500c422 | 4992 | { |
5cdb3cf3 MB |
4993 | if (IT_CHARPOS (it) == ZV) |
4994 | { | |
07ce8b53 RS |
4995 | if (it.current_y < it.last_visible_y |
4996 | && (it.current_y + it.max_ascent + it.max_descent | |
3f489dc7 | 4997 | > it.last_visible_y)) |
a74eca50 GM |
4998 | { |
4999 | /* The last line was only partially visible, make it fully | |
5000 | visible. */ | |
5001 | w->vscroll = (it.last_visible_y | |
5002 | - it.current_y + it.max_ascent + it.max_descent); | |
bd0443bb | 5003 | adjust_frame_glyphs (it.f); |
a74eca50 | 5004 | } |
5cdb3cf3 | 5005 | else |
57b3e30b | 5006 | { |
35928349 | 5007 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5008 | if (noerror) |
5009 | return; | |
5010 | else if (n < 0) /* could happen with empty buffers */ | |
5011 | xsignal0 (Qbeginning_of_buffer); | |
5012 | else | |
5013 | xsignal0 (Qend_of_buffer); | |
5014 | } | |
5cdb3cf3 | 5015 | } |
5500c422 | 5016 | else |
5cdb3cf3 MB |
5017 | { |
5018 | if (w->vscroll != 0) | |
5019 | /* The first line was only partially visible, make it fully | |
5020 | visible. */ | |
5021 | w->vscroll = 0; | |
5cdb3cf3 | 5022 | else |
57b3e30b | 5023 | { |
35928349 | 5024 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5025 | if (noerror) |
5026 | return; | |
5027 | else | |
5028 | xsignal0 (Qbeginning_of_buffer); | |
5029 | } | |
5cdb3cf3 MB |
5030 | } |
5031 | ||
5032 | /* If control gets here, then we vscrolled. */ | |
5033 | ||
e74aeda8 | 5034 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
5cdb3cf3 MB |
5035 | |
5036 | /* Don't try to change the window start below. */ | |
5037 | vscrolled = 1; | |
5500c422 GM |
5038 | } |
5039 | ||
5cdb3cf3 MB |
5040 | if (! vscrolled) |
5041 | { | |
d311d28c PE |
5042 | ptrdiff_t pos = IT_CHARPOS (it); |
5043 | ptrdiff_t bytepos; | |
e68def1e AS |
5044 | |
5045 | /* If in the middle of a multi-glyph character move forward to | |
5046 | the next character. */ | |
5047 | if (in_display_vector_p (&it)) | |
5048 | { | |
5049 | ++pos; | |
5050 | move_it_to (&it, pos, -1, -1, -1, MOVE_TO_POS); | |
5051 | } | |
5052 | ||
5cdb3cf3 | 5053 | /* Set the window start, and set up the window for redisplay. */ |
e74aeda8 | 5054 | set_marker_restricted_both (w->start, w->contents, IT_CHARPOS (it), |
f74de345 | 5055 | IT_BYTEPOS (it)); |
4c1acb95 | 5056 | bytepos = marker_byte_position (w->start); |
c98ff5dd DA |
5057 | w->start_at_line_beg = (pos == BEGV || FETCH_BYTE (bytepos - 1) == '\n'); |
5058 | w->update_mode_line = 1; | |
5cdb3cf3 MB |
5059 | /* Set force_start so that redisplay_window will run the |
5060 | window-scroll-functions. */ | |
c98ff5dd | 5061 | w->force_start = 1; |
5cdb3cf3 | 5062 | } |
177c0ea7 | 5063 | |
dc297565 RS |
5064 | /* The rest of this function uses current_y in a nonstandard way, |
5065 | not including the height of the header line if any. */ | |
5500c422 | 5066 | it.current_y = it.vpos = 0; |
177c0ea7 | 5067 | |
940f53e5 RS |
5068 | /* Move PT out of scroll margins. |
5069 | This code wants current_y to be zero at the window start position | |
5070 | even if there is a header line. */ | |
fdda0220 EZ |
5071 | window_total_lines |
5072 | = w->total_lines * WINDOW_FRAME_LINE_HEIGHT (w) / frame_line_height; | |
940f53e5 | 5073 | this_scroll_margin = max (0, scroll_margin); |
3a45383a | 5074 | this_scroll_margin |
fdda0220 EZ |
5075 | = min (this_scroll_margin, window_total_lines / 4); |
5076 | this_scroll_margin *= frame_line_height; | |
940f53e5 RS |
5077 | |
5078 | if (n > 0) | |
5500c422 | 5079 | { |
940f53e5 RS |
5080 | /* We moved the window start towards ZV, so PT may be now |
5081 | in the scroll margin at the top. */ | |
5082 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
bdf4ec93 RS |
5083 | if (IT_CHARPOS (it) == PT && it.current_y >= this_scroll_margin |
5084 | && (NILP (Vscroll_preserve_screen_position) | |
5085 | || EQ (Vscroll_preserve_screen_position, Qt))) | |
940f53e5 RS |
5086 | /* We found PT at a legitimate height. Leave it alone. */ |
5087 | ; | |
66fe93d1 | 5088 | else if (window_scroll_pixel_based_preserve_y >= 0) |
940f53e5 | 5089 | { |
fa3c3426 RS |
5090 | /* If we have a header line, take account of it. |
5091 | This is necessary because we set it.current_y to 0, above. */ | |
c876b227 SM |
5092 | move_it_to (&it, -1, |
5093 | window_scroll_pixel_based_preserve_x, | |
66fe93d1 LT |
5094 | window_scroll_pixel_based_preserve_y |
5095 | - (WINDOW_WANTS_HEADER_LINE_P (w) ? 1 : 0 ), | |
c876b227 | 5096 | -1, MOVE_TO_Y | MOVE_TO_X); |
940f53e5 RS |
5097 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5098 | } | |
5099 | else | |
5500c422 | 5100 | { |
5500c422 | 5101 | while (it.current_y < this_scroll_margin) |
e9b2c961 RS |
5102 | { |
5103 | int prev = it.current_y; | |
e4cc2dfc | 5104 | move_it_by_lines (&it, 1); |
e9b2c961 RS |
5105 | if (prev == it.current_y) |
5106 | break; | |
5107 | } | |
5500c422 GM |
5108 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5109 | } | |
940f53e5 RS |
5110 | } |
5111 | else if (n < 0) | |
5112 | { | |
d311d28c | 5113 | ptrdiff_t charpos, bytepos; |
aed328bf | 5114 | int partial_p; |
940f53e5 | 5115 | |
66fe93d1 LT |
5116 | /* Save our position, for the |
5117 | window_scroll_pixel_based_preserve_y case. */ | |
940f53e5 RS |
5118 | charpos = IT_CHARPOS (it); |
5119 | bytepos = IT_BYTEPOS (it); | |
5cdb3cf3 | 5120 | |
940f53e5 RS |
5121 | /* We moved the window start towards BEGV, so PT may be now |
5122 | in the scroll margin at the bottom. */ | |
5123 | move_it_to (&it, PT, -1, | |
7ad53239 RS |
5124 | (it.last_visible_y - CURRENT_HEADER_LINE_HEIGHT (w) |
5125 | - this_scroll_margin - 1), | |
5126 | -1, | |
940f53e5 RS |
5127 | MOVE_TO_POS | MOVE_TO_Y); |
5128 | ||
aed328bf KS |
5129 | /* Save our position, in case it's correct. */ |
5130 | charpos = IT_CHARPOS (it); | |
5131 | bytepos = IT_BYTEPOS (it); | |
5132 | ||
5133 | /* See if point is on a partially visible line at the end. */ | |
5134 | if (it.what == IT_EOB) | |
5135 | partial_p = it.current_y + it.ascent + it.descent > it.last_visible_y; | |
5136 | else | |
5137 | { | |
e4cc2dfc | 5138 | move_it_by_lines (&it, 1); |
aed328bf KS |
5139 | partial_p = it.current_y > it.last_visible_y; |
5140 | } | |
5141 | ||
bdf4ec93 RS |
5142 | if (charpos == PT && !partial_p |
5143 | && (NILP (Vscroll_preserve_screen_position) | |
5144 | || EQ (Vscroll_preserve_screen_position, Qt))) | |
940f53e5 RS |
5145 | /* We found PT before we found the display margin, so PT is ok. */ |
5146 | ; | |
66fe93d1 | 5147 | else if (window_scroll_pixel_based_preserve_y >= 0) |
940f53e5 | 5148 | { |
d3d50620 | 5149 | SET_TEXT_POS_FROM_MARKER (start, w->start); |
940f53e5 | 5150 | start_display (&it, w, start); |
c525d842 CY |
5151 | /* It would be wrong to subtract CURRENT_HEADER_LINE_HEIGHT |
5152 | here because we called start_display again and did not | |
5153 | alter it.current_y this time. */ | |
c876b227 SM |
5154 | move_it_to (&it, -1, window_scroll_pixel_based_preserve_x, |
5155 | window_scroll_pixel_based_preserve_y, -1, | |
5156 | MOVE_TO_Y | MOVE_TO_X); | |
940f53e5 RS |
5157 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5158 | } | |
5159 | else | |
5160 | { | |
aed328bf | 5161 | if (partial_p) |
5cdb3cf3 MB |
5162 | /* The last line was only partially visible, so back up two |
5163 | lines to make sure we're on a fully visible line. */ | |
5164 | { | |
e4cc2dfc | 5165 | move_it_by_lines (&it, -2); |
5cdb3cf3 MB |
5166 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5167 | } | |
5168 | else | |
5169 | /* No, the position we saved is OK, so use it. */ | |
5170 | SET_PT_BOTH (charpos, bytepos); | |
5500c422 GM |
5171 | } |
5172 | } | |
35928349 | 5173 | bidi_unshelve_cache (itdata, 0); |
5500c422 GM |
5174 | } |
5175 | ||
5176 | ||
5177 | /* Implementation of window_scroll that works based on screen lines. | |
5178 | See the comment of window_scroll for parameter descriptions. */ | |
5179 | ||
5180 | static void | |
56b5d5b1 | 5181 | window_scroll_line_based (Lisp_Object window, int n, bool whole, int noerror) |
7ab12479 JB |
5182 | { |
5183 | register struct window *w = XWINDOW (window); | |
03ab8921 EZ |
5184 | /* Fvertical_motion enters redisplay, which can trigger |
5185 | fontification, which in turn can modify buffer text (e.g., if the | |
5186 | fontification functions replace escape sequences with faces, as | |
5187 | in `grep-mode-font-lock-keywords'). So we use a marker to record | |
5188 | the old point position, to prevent crashes in SET_PT_BOTH. */ | |
5189 | Lisp_Object opoint_marker = Fpoint_marker (); | |
d311d28c | 5190 | register ptrdiff_t pos, pos_byte; |
7ab12479 JB |
5191 | register int ht = window_internal_height (w); |
5192 | register Lisp_Object tem; | |
56b5d5b1 | 5193 | bool lose; |
5500c422 | 5194 | Lisp_Object bolp; |
c54aa166 DA |
5195 | ptrdiff_t startpos = marker_position (w->start); |
5196 | ptrdiff_t startbyte = marker_byte_position (w->start); | |
c876b227 | 5197 | Lisp_Object original_pos = Qnil; |
101d1605 | 5198 | |
d4e7cf01 GM |
5199 | /* If scrolling screen-fulls, compute the number of lines to |
5200 | scroll from the window's height. */ | |
5201 | if (whole) | |
5202 | n *= max (1, ht - next_screen_context_lines); | |
5203 | ||
c876b227 SM |
5204 | if (!NILP (Vscroll_preserve_screen_position)) |
5205 | { | |
5206 | if (window_scroll_preserve_vpos <= 0 | |
1344aad4 TT |
5207 | || !SYMBOLP (KVAR (current_kboard, Vlast_command)) |
5208 | || NILP (Fget (KVAR (current_kboard, Vlast_command), Qscroll_command))) | |
c876b227 SM |
5209 | { |
5210 | struct position posit | |
c54aa166 DA |
5211 | = *compute_motion (startpos, startbyte, 0, 0, 0, |
5212 | PT, ht, 0, -1, w->hscroll, 0, w); | |
c876b227 | 5213 | window_scroll_preserve_vpos = posit.vpos; |
80b00b08 | 5214 | window_scroll_preserve_hpos = posit.hpos + w->hscroll; |
c876b227 SM |
5215 | } |
5216 | ||
5217 | original_pos = Fcons (make_number (window_scroll_preserve_hpos), | |
5218 | make_number (window_scroll_preserve_vpos)); | |
5219 | } | |
0a1f771a | 5220 | |
d834a2e9 | 5221 | XSETFASTINT (tem, PT); |
6ffdb539 | 5222 | tem = Fpos_visible_in_window_p (tem, window, Qnil); |
7ab12479 | 5223 | |
265a9e55 | 5224 | if (NILP (tem)) |
7ab12479 | 5225 | { |
cd2be1dd | 5226 | Fvertical_motion (make_number (- (ht / 2)), window); |
345d45b2 | 5227 | startpos = PT; |
c54aa166 | 5228 | startbyte = PT_BYTE; |
7ab12479 JB |
5229 | } |
5230 | ||
c54aa166 | 5231 | SET_PT_BOTH (startpos, startbyte); |
5ce7b543 | 5232 | lose = n < 0 && PT == BEGV; |
540b6aa0 | 5233 | Fvertical_motion (make_number (n), window); |
5ce7b543 | 5234 | pos = PT; |
b73ea88e | 5235 | pos_byte = PT_BYTE; |
7ab12479 | 5236 | bolp = Fbolp (); |
03ab8921 EZ |
5237 | SET_PT_BOTH (marker_position (opoint_marker), |
5238 | marker_byte_position (opoint_marker)); | |
7ab12479 JB |
5239 | |
5240 | if (lose) | |
f8026fd8 JB |
5241 | { |
5242 | if (noerror) | |
5243 | return; | |
5244 | else | |
ba96a5cf | 5245 | xsignal0 (Qbeginning_of_buffer); |
f8026fd8 | 5246 | } |
7ab12479 JB |
5247 | |
5248 | if (pos < ZV) | |
7ab12479 | 5249 | { |
0c7da84e | 5250 | /* Don't use a scroll margin that is negative or too large. */ |
71f02bc5 | 5251 | int this_scroll_margin = |
5f24fa51 | 5252 | max (0, min (scroll_margin, w->total_lines / 4)); |
0c7da84e | 5253 | |
e74aeda8 | 5254 | set_marker_restricted_both (w->start, w->contents, pos, pos_byte); |
c98ff5dd DA |
5255 | w->start_at_line_beg = !NILP (bolp); |
5256 | w->update_mode_line = 1; | |
345d45b2 RS |
5257 | /* Set force_start so that redisplay_window will run |
5258 | the window-scroll-functions. */ | |
c98ff5dd | 5259 | w->force_start = 1; |
0c7da84e | 5260 | |
bdf4ec93 RS |
5261 | if (!NILP (Vscroll_preserve_screen_position) |
5262 | && (whole || !EQ (Vscroll_preserve_screen_position, Qt))) | |
0c7da84e | 5263 | { |
b73ea88e | 5264 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5265 | Fvertical_motion (original_pos, window); |
0c7da84e | 5266 | } |
101d1605 RS |
5267 | /* If we scrolled forward, put point enough lines down |
5268 | that it is outside the scroll margin. */ | |
5269 | else if (n > 0) | |
0c7da84e | 5270 | { |
101d1605 RS |
5271 | int top_margin; |
5272 | ||
5273 | if (this_scroll_margin > 0) | |
5274 | { | |
b73ea88e | 5275 | SET_PT_BOTH (pos, pos_byte); |
101d1605 RS |
5276 | Fvertical_motion (make_number (this_scroll_margin), window); |
5277 | top_margin = PT; | |
5278 | } | |
5279 | else | |
5280 | top_margin = pos; | |
5281 | ||
03ab8921 EZ |
5282 | if (top_margin <= marker_position (opoint_marker)) |
5283 | SET_PT_BOTH (marker_position (opoint_marker), | |
5284 | marker_byte_position (opoint_marker)); | |
5500c422 | 5285 | else if (!NILP (Vscroll_preserve_screen_position)) |
101d1605 | 5286 | { |
b73ea88e | 5287 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5288 | Fvertical_motion (original_pos, window); |
101d1605 | 5289 | } |
9317a85d | 5290 | else |
335406fc | 5291 | SET_PT (top_margin); |
0c7da84e | 5292 | } |
101d1605 | 5293 | else if (n < 0) |
7ab12479 | 5294 | { |
101d1605 RS |
5295 | int bottom_margin; |
5296 | ||
0c7da84e RS |
5297 | /* If we scrolled backward, put point near the end of the window |
5298 | but not within the scroll margin. */ | |
b73ea88e | 5299 | SET_PT_BOTH (pos, pos_byte); |
0c7da84e | 5300 | tem = Fvertical_motion (make_number (ht - this_scroll_margin), window); |
101d1605 RS |
5301 | if (XFASTINT (tem) == ht - this_scroll_margin) |
5302 | bottom_margin = PT; | |
5303 | else | |
5304 | bottom_margin = PT + 1; | |
5305 | ||
03ab8921 EZ |
5306 | if (bottom_margin > marker_position (opoint_marker)) |
5307 | SET_PT_BOTH (marker_position (opoint_marker), | |
5308 | marker_byte_position (opoint_marker)); | |
7ab12479 | 5309 | else |
101d1605 | 5310 | { |
5500c422 | 5311 | if (!NILP (Vscroll_preserve_screen_position)) |
9317a85d | 5312 | { |
b73ea88e | 5313 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5314 | Fvertical_motion (original_pos, window); |
9317a85d RS |
5315 | } |
5316 | else | |
5317 | Fvertical_motion (make_number (-1), window); | |
101d1605 | 5318 | } |
7ab12479 JB |
5319 | } |
5320 | } | |
5321 | else | |
f8026fd8 JB |
5322 | { |
5323 | if (noerror) | |
5324 | return; | |
5325 | else | |
ba96a5cf | 5326 | xsignal0 (Qend_of_buffer); |
f8026fd8 | 5327 | } |
7ab12479 | 5328 | } |
5500c422 GM |
5329 | |
5330 | ||
5331 | /* Scroll selected_window up or down. If N is nil, scroll a | |
5332 | screen-full which is defined as the height of the window minus | |
5333 | next_screen_context_lines. If N is the symbol `-', scroll. | |
5334 | DIRECTION may be 1 meaning to scroll down, or -1 meaning to scroll | |
5335 | up. This is the guts of Fscroll_up and Fscroll_down. */ | |
7ab12479 JB |
5336 | |
5337 | static void | |
971de7fb | 5338 | scroll_command (Lisp_Object n, int direction) |
7ab12479 | 5339 | { |
d311d28c | 5340 | ptrdiff_t count = SPECPDL_INDEX (); |
7ab12479 | 5341 | |
a54e2c05 | 5342 | eassert (eabs (direction) == 1); |
5500c422 GM |
5343 | |
5344 | /* If selected window's buffer isn't current, make it current for | |
5345 | the moment. But don't screw up if window_scroll gets an error. */ | |
e74aeda8 | 5346 | if (XBUFFER (XWINDOW (selected_window)->contents) != current_buffer) |
95605e15 JB |
5347 | { |
5348 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
e74aeda8 | 5349 | Fset_buffer (XWINDOW (selected_window)->contents); |
95605e15 | 5350 | } |
7ab12479 | 5351 | |
265a9e55 | 5352 | if (NILP (n)) |
d4e7cf01 | 5353 | window_scroll (selected_window, direction, 1, 0); |
7ab12479 | 5354 | else if (EQ (n, Qminus)) |
d4e7cf01 | 5355 | window_scroll (selected_window, -direction, 1, 0); |
7ab12479 JB |
5356 | else |
5357 | { | |
5358 | n = Fprefix_numeric_value (n); | |
101d1605 | 5359 | window_scroll (selected_window, XINT (n) * direction, 0, 0); |
7ab12479 | 5360 | } |
95605e15 JB |
5361 | |
5362 | unbind_to (count, Qnil); | |
7ab12479 JB |
5363 | } |
5364 | ||
e0965597 | 5365 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "^P", |
12bb3111 | 5366 | doc: /* Scroll text of selected window upward ARG lines. |
a0a37a6f | 5367 | If ARG is omitted or nil, scroll upward by a near full screen. |
fdb82f93 PJ |
5368 | A near full screen is `next-screen-context-lines' less than a full screen. |
5369 | Negative ARG means scroll downward. | |
5370 | If ARG is the atom `-', scroll downward by nearly full screen. | |
5371 | When calling from a program, supply as argument a number, nil, or `-'. */) | |
5842a27b | 5372 | (Lisp_Object arg) |
7ab12479 | 5373 | { |
413430c5 | 5374 | scroll_command (arg, 1); |
7ab12479 JB |
5375 | return Qnil; |
5376 | } | |
5377 | ||
e0965597 | 5378 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "^P", |
12bb3111 | 5379 | doc: /* Scroll text of selected window down ARG lines. |
a0a37a6f | 5380 | If ARG is omitted or nil, scroll down by a near full screen. |
fdb82f93 PJ |
5381 | A near full screen is `next-screen-context-lines' less than a full screen. |
5382 | Negative ARG means scroll upward. | |
5383 | If ARG is the atom `-', scroll upward by nearly full screen. | |
5384 | When calling from a program, supply as argument a number, nil, or `-'. */) | |
5842a27b | 5385 | (Lisp_Object arg) |
7ab12479 | 5386 | { |
413430c5 | 5387 | scroll_command (arg, -1); |
7ab12479 JB |
5388 | return Qnil; |
5389 | } | |
ccd0664b RS |
5390 | \f |
5391 | DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0, | |
fdb82f93 | 5392 | doc: /* Return the other window for \"other window scroll\" commands. |
fdb82f93 | 5393 | If `other-window-scroll-buffer' is non-nil, a window |
a0a37a6f LT |
5394 | showing that buffer is used. |
5395 | If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
5396 | specifies the window. This takes precedence over | |
5397 | `other-window-scroll-buffer'. */) | |
5842a27b | 5398 | (void) |
7ab12479 | 5399 | { |
ccd0664b | 5400 | Lisp_Object window; |
7ab12479 JB |
5401 | |
5402 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 5403 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
5404 | window = Vminibuf_scroll_window; |
5405 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 5406 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
5407 | { |
5408 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 5409 | if (NILP (window)) |
87478b52 | 5410 | window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); |
7ab12479 JB |
5411 | } |
5412 | else | |
dbc4e1c1 JB |
5413 | { |
5414 | /* Nothing specified; look for a neighboring window on the same | |
5415 | frame. */ | |
5416 | window = Fnext_window (selected_window, Qnil, Qnil); | |
5417 | ||
5418 | if (EQ (window, selected_window)) | |
5419 | /* That didn't get us anywhere; look for a window on another | |
5420 | visible frame. */ | |
5421 | do | |
5422 | window = Fnext_window (window, Qnil, Qt); | |
5423 | while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
5424 | && ! EQ (window, selected_window)); | |
5425 | } | |
5426 | ||
b7826503 | 5427 | CHECK_LIVE_WINDOW (window); |
7ab12479 JB |
5428 | |
5429 | if (EQ (window, selected_window)) | |
5430 | error ("There is no other window"); | |
5431 | ||
ccd0664b RS |
5432 | return window; |
5433 | } | |
5434 | ||
5435 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
fdb82f93 PJ |
5436 | doc: /* Scroll next window upward ARG lines; or near full screen if no ARG. |
5437 | A near full screen is `next-screen-context-lines' less than a full screen. | |
5438 | The next window is the one below the current one; or the one at the top | |
5439 | if the current one is at the bottom. Negative ARG means scroll downward. | |
5440 | If ARG is the atom `-', scroll downward by nearly full screen. | |
5441 | When calling from a program, supply as argument a number, nil, or `-'. | |
5442 | ||
fdb82f93 | 5443 | If `other-window-scroll-buffer' is non-nil, scroll the window |
a0a37a6f LT |
5444 | showing that buffer, popping the buffer up if necessary. |
5445 | If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
5446 | specifies the window to scroll. This takes precedence over | |
5447 | `other-window-scroll-buffer'. */) | |
5842a27b | 5448 | (Lisp_Object arg) |
ccd0664b | 5449 | { |
d4e7cf01 GM |
5450 | Lisp_Object window; |
5451 | struct window *w; | |
d311d28c | 5452 | ptrdiff_t count = SPECPDL_INDEX (); |
ccd0664b RS |
5453 | |
5454 | window = Fother_window_for_scrolling (); | |
7ab12479 | 5455 | w = XWINDOW (window); |
7ab12479 JB |
5456 | |
5457 | /* Don't screw up if window_scroll gets an error. */ | |
5458 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
5459 | ||
e74aeda8 | 5460 | Fset_buffer (w->contents); |
ffcd945e | 5461 | SET_PT_BOTH (marker_position (w->pointm), marker_byte_position (w->pointm)); |
7ab12479 | 5462 | |
413430c5 | 5463 | if (NILP (arg)) |
d4e7cf01 | 5464 | window_scroll (window, 1, 1, 1); |
413430c5 | 5465 | else if (EQ (arg, Qminus)) |
d4e7cf01 | 5466 | window_scroll (window, -1, 1, 1); |
7ab12479 JB |
5467 | else |
5468 | { | |
413430c5 | 5469 | if (CONSP (arg)) |
7d7bbefd | 5470 | arg = XCAR (arg); |
b7826503 | 5471 | CHECK_NUMBER (arg); |
101d1605 | 5472 | window_scroll (window, XINT (arg), 0, 1); |
7ab12479 JB |
5473 | } |
5474 | ||
d3d50620 | 5475 | set_marker_both (w->pointm, Qnil, PT, PT_BYTE); |
f4e7b2c2 | 5476 | unbind_to (count, Qnil); |
7ab12479 JB |
5477 | |
5478 | return Qnil; | |
5479 | } | |
5480 | \f | |
e0965597 | 5481 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 2, "^P\np", |
fdb82f93 | 5482 | doc: /* Scroll selected window display ARG columns left. |
2fe41216 EZ |
5483 | Default for ARG is window width minus 2. |
5484 | Value is the total amount of leftward horizontal scrolling in | |
5485 | effect after the change. | |
23fe745a | 5486 | If SET-MINIMUM is non-nil, the new scroll amount becomes the |
dc297565 | 5487 | lower bound for automatic scrolling, i.e. automatic scrolling |
2fe41216 | 5488 | will not scroll a window to a column less than the value returned |
dc297565 | 5489 | by this function. This happens in an interactive call. */) |
5842a27b | 5490 | (register Lisp_Object arg, Lisp_Object set_minimum) |
7ab12479 | 5491 | { |
c67fa410 | 5492 | struct window *w = XWINDOW (selected_window); |
aa754e6a | 5493 | EMACS_INT requested_arg = (NILP (arg) |
880e6158 | 5494 | ? window_body_width (w, 0) - 2 |
aa754e6a | 5495 | : XINT (Fprefix_numeric_value (arg))); |
24a212eb | 5496 | Lisp_Object result = set_window_hscroll (w, w->hscroll + requested_arg); |
c67fa410 | 5497 | |
dc297565 | 5498 | if (!NILP (set_minimum)) |
c67fa410 GM |
5499 | w->min_hscroll = w->hscroll; |
5500 | ||
5501 | return result; | |
7ab12479 JB |
5502 | } |
5503 | ||
e0965597 | 5504 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 2, "^P\np", |
fdb82f93 | 5505 | doc: /* Scroll selected window display ARG columns right. |
2fe41216 EZ |
5506 | Default for ARG is window width minus 2. |
5507 | Value is the total amount of leftward horizontal scrolling in | |
5508 | effect after the change. | |
23fe745a | 5509 | If SET-MINIMUM is non-nil, the new scroll amount becomes the |
dc297565 | 5510 | lower bound for automatic scrolling, i.e. automatic scrolling |
2fe41216 | 5511 | will not scroll a window to a column less than the value returned |
dc297565 | 5512 | by this function. This happens in an interactive call. */) |
5842a27b | 5513 | (register Lisp_Object arg, Lisp_Object set_minimum) |
7ab12479 | 5514 | { |
c67fa410 | 5515 | struct window *w = XWINDOW (selected_window); |
aa754e6a | 5516 | EMACS_INT requested_arg = (NILP (arg) |
880e6158 | 5517 | ? window_body_width (w, 0) - 2 |
aa754e6a | 5518 | : XINT (Fprefix_numeric_value (arg))); |
24a212eb | 5519 | Lisp_Object result = set_window_hscroll (w, w->hscroll - requested_arg); |
177c0ea7 | 5520 | |
dc297565 | 5521 | if (!NILP (set_minimum)) |
c67fa410 GM |
5522 | w->min_hscroll = w->hscroll; |
5523 | ||
5524 | return result; | |
7ab12479 JB |
5525 | } |
5526 | ||
fa832261 KS |
5527 | DEFUN ("minibuffer-selected-window", Fminibuffer_selected_window, Sminibuffer_selected_window, 0, 0, 0, |
5528 | doc: /* Return the window which was selected when entering the minibuffer. | |
12bb3111 | 5529 | Returns nil, if selected window is not a minibuffer window. */) |
5842a27b | 5530 | (void) |
fa832261 KS |
5531 | { |
5532 | if (minibuf_level > 0 | |
5533 | && MINI_WINDOW_P (XWINDOW (selected_window)) | |
fa832261 KS |
5534 | && WINDOW_LIVE_P (minibuf_selected_window)) |
5535 | return minibuf_selected_window; | |
5536 | ||
5537 | return Qnil; | |
5538 | } | |
5539 | ||
12c8b416 GM |
5540 | /* Value is the number of lines actually displayed in window W, |
5541 | as opposed to its height. */ | |
5542 | ||
5543 | static int | |
971de7fb | 5544 | displayed_window_lines (struct window *w) |
12c8b416 GM |
5545 | { |
5546 | struct it it; | |
5547 | struct text_pos start; | |
5548 | int height = window_box_height (w); | |
5549 | struct buffer *old_buffer; | |
5550 | int bottom_y; | |
57b3e30b | 5551 | void *itdata = NULL; |
12c8b416 | 5552 | |
e74aeda8 | 5553 | if (XBUFFER (w->contents) != current_buffer) |
12c8b416 GM |
5554 | { |
5555 | old_buffer = current_buffer; | |
e74aeda8 | 5556 | set_buffer_internal (XBUFFER (w->contents)); |
12c8b416 GM |
5557 | } |
5558 | else | |
5559 | old_buffer = NULL; | |
5560 | ||
521b203e GM |
5561 | /* In case W->start is out of the accessible range, do something |
5562 | reasonable. This happens in Info mode when Info-scroll-down | |
5563 | calls (recenter -1) while W->start is 1. */ | |
cf91889a | 5564 | CLIP_TEXT_POS_FROM_MARKER (start, w->start); |
521b203e | 5565 | |
57b3e30b | 5566 | itdata = bidi_shelve_cache (); |
12c8b416 GM |
5567 | start_display (&it, w, start); |
5568 | move_it_vertically (&it, height); | |
c8bc6f65 | 5569 | bottom_y = line_bottom_y (&it); |
35928349 | 5570 | bidi_unshelve_cache (itdata, 0); |
12c8b416 | 5571 | |
1de65f51 RS |
5572 | /* rms: On a non-window display, |
5573 | the value of it.vpos at the bottom of the screen | |
5574 | seems to be 1 larger than window_box_height (w). | |
5575 | This kludge fixes a bug whereby (move-to-window-line -1) | |
5576 | when ZV is on the last screen line | |
5577 | moves to the previous screen line instead of the last one. */ | |
d3d50620 | 5578 | if (! FRAME_WINDOW_P (XFRAME (w->frame))) |
1de65f51 RS |
5579 | height++; |
5580 | ||
12c8b416 GM |
5581 | /* Add in empty lines at the bottom of the window. */ |
5582 | if (bottom_y < height) | |
5583 | { | |
949cf20f | 5584 | int uy = FRAME_LINE_HEIGHT (it.f); |
c8bc6f65 | 5585 | it.vpos += (height - bottom_y + uy - 1) / uy; |
12c8b416 GM |
5586 | } |
5587 | ||
c8bc6f65 GM |
5588 | if (old_buffer) |
5589 | set_buffer_internal (old_buffer); | |
5590 | ||
12c8b416 GM |
5591 | return it.vpos; |
5592 | } | |
5593 | ||
5594 | ||
a7ca3326 | 5595 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", |
666e158e | 5596 | doc: /* Center point in selected window and maybe redisplay frame. |
3b166f09 | 5597 | With a numeric prefix argument ARG, recenter putting point on screen line ARG |
12bb3111 | 5598 | relative to the selected window. If ARG is negative, it counts up from the |
fdb82f93 PJ |
5599 | bottom of the window. (ARG should be less than the height of the window.) |
5600 | ||
666e158e MB |
5601 | If ARG is omitted or nil, then recenter with point on the middle line of |
5602 | the selected window; if the variable `recenter-redisplay' is non-nil, | |
5603 | also erase the entire frame and redraw it (when `auto-resize-tool-bars' | |
5604 | is set to `grow-only', this resets the tool-bar's height to the minimum | |
5605 | height needed); if `recenter-redisplay' has the special value `tty', | |
53524d93 | 5606 | then only tty frames are redrawn. |
7d1d98ee | 5607 | |
fdb82f93 PJ |
5608 | Just C-u as prefix means put point in the center of the window |
5609 | and redisplay normally--don't erase and redraw the frame. */) | |
5842a27b | 5610 | (register Lisp_Object arg) |
7ab12479 | 5611 | { |
6df47b59 | 5612 | struct window *w = XWINDOW (selected_window); |
e74aeda8 | 5613 | struct buffer *buf = XBUFFER (w->contents); |
478292ed | 5614 | struct buffer *obuf = current_buffer; |
d7e6881a | 5615 | bool center_p = 0; |
d311d28c | 5616 | ptrdiff_t charpos, bytepos; |
71f02bc5 | 5617 | EMACS_INT iarg IF_LINT (= 0); |
f6b43440 | 5618 | int this_scroll_margin; |
7ab12479 | 5619 | |
0fa5d25b RS |
5620 | /* If redisplay is suppressed due to an error, try again. */ |
5621 | obuf->display_error_modiff = 0; | |
5622 | ||
413430c5 | 5623 | if (NILP (arg)) |
7ab12479 | 5624 | { |
666e158e MB |
5625 | if (!NILP (Vrecenter_redisplay) |
5626 | && (!EQ (Vrecenter_redisplay, Qtty) | |
5627 | || !NILP (Ftty_type (selected_frame)))) | |
5628 | { | |
ebfa62c0 | 5629 | ptrdiff_t i; |
f02d6d5c | 5630 | |
666e158e MB |
5631 | /* Invalidate pixel data calculated for all compositions. */ |
5632 | for (i = 0; i < n_compositions; i++) | |
5633 | composition_table[i]->font = NULL; | |
742516e0 | 5634 | #if defined (HAVE_WINDOW_SYSTEM) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
666e158e | 5635 | WINDOW_XFRAME (w)->minimize_tool_bar_window_p = 1; |
742516e0 | 5636 | #endif |
666e158e MB |
5637 | Fredraw_frame (WINDOW_FRAME (w)); |
5638 | SET_FRAME_GARBAGED (WINDOW_XFRAME (w)); | |
5639 | } | |
7d1d98ee | 5640 | |
6df47b59 | 5641 | center_p = 1; |
7ab12479 | 5642 | } |
413430c5 | 5643 | else if (CONSP (arg)) /* Just C-u. */ |
6df47b59 | 5644 | center_p = 1; |
7ab12479 JB |
5645 | else |
5646 | { | |
413430c5 | 5647 | arg = Fprefix_numeric_value (arg); |
b7826503 | 5648 | CHECK_NUMBER (arg); |
ae12ecd7 | 5649 | iarg = XINT (arg); |
7ab12479 JB |
5650 | } |
5651 | ||
478292ed | 5652 | set_buffer_internal (buf); |
7ab12479 | 5653 | |
f6b43440 RS |
5654 | /* Do this after making BUF current |
5655 | in case scroll_margin is buffer-local. */ | |
71f02bc5 | 5656 | this_scroll_margin = |
5f24fa51 | 5657 | max (0, min (scroll_margin, w->total_lines / 4)); |
f6b43440 | 5658 | |
521b203e | 5659 | /* Handle centering on a graphical frame specially. Such frames can |
6df47b59 GM |
5660 | have variable-height lines and centering point on the basis of |
5661 | line counts would lead to strange effects. */ | |
d3d50620 | 5662 | if (FRAME_WINDOW_P (XFRAME (w->frame))) |
6df47b59 | 5663 | { |
6df47b59 GM |
5664 | if (center_p) |
5665 | { | |
521b203e GM |
5666 | struct it it; |
5667 | struct text_pos pt; | |
57b3e30b | 5668 | void *itdata = bidi_shelve_cache (); |
177c0ea7 | 5669 | |
521b203e GM |
5670 | SET_TEXT_POS (pt, PT, PT_BYTE); |
5671 | start_display (&it, w, pt); | |
f204989e | 5672 | move_it_vertically_backward (&it, window_box_height (w) / 2); |
521b203e GM |
5673 | charpos = IT_CHARPOS (it); |
5674 | bytepos = IT_BYTEPOS (it); | |
35928349 | 5675 | bidi_unshelve_cache (itdata, 0); |
6df47b59 | 5676 | } |
f6b43440 | 5677 | else if (iarg < 0) |
6df47b59 | 5678 | { |
521b203e GM |
5679 | struct it it; |
5680 | struct text_pos pt; | |
5895d7b9 | 5681 | ptrdiff_t nlines = min (PTRDIFF_MAX, -iarg); |
f204989e KS |
5682 | int extra_line_spacing; |
5683 | int h = window_box_height (w); | |
57b3e30b | 5684 | void *itdata = bidi_shelve_cache (); |
177c0ea7 | 5685 | |
f6b43440 RS |
5686 | iarg = - max (-iarg, this_scroll_margin); |
5687 | ||
521b203e GM |
5688 | SET_TEXT_POS (pt, PT, PT_BYTE); |
5689 | start_display (&it, w, pt); | |
f204989e KS |
5690 | |
5691 | /* Be sure we have the exact height of the full line containing PT. */ | |
e4cc2dfc | 5692 | move_it_by_lines (&it, 0); |
521b203e | 5693 | |
d466fa4d | 5694 | /* The amount of pixels we have to move back is the window |
521b203e GM |
5695 | height minus what's displayed in the line containing PT, |
5696 | and the lines below. */ | |
f204989e KS |
5697 | it.current_y = 0; |
5698 | it.vpos = 0; | |
e4cc2dfc | 5699 | move_it_by_lines (&it, nlines); |
d466fa4d | 5700 | |
f204989e KS |
5701 | if (it.vpos == nlines) |
5702 | h -= it.current_y; | |
5703 | else | |
5704 | { | |
5705 | /* Last line has no newline */ | |
5706 | h -= line_bottom_y (&it); | |
5707 | it.vpos++; | |
5708 | } | |
5709 | ||
5710 | /* Don't reserve space for extra line spacing of last line. */ | |
5711 | extra_line_spacing = it.max_extra_line_spacing; | |
d466fa4d GM |
5712 | |
5713 | /* If we can't move down NLINES lines because we hit | |
5714 | the end of the buffer, count in some empty lines. */ | |
5715 | if (it.vpos < nlines) | |
f204989e KS |
5716 | { |
5717 | nlines -= it.vpos; | |
5718 | extra_line_spacing = it.extra_line_spacing; | |
5719 | h -= nlines * (FRAME_LINE_HEIGHT (it.f) + extra_line_spacing); | |
5720 | } | |
5721 | if (h <= 0) | |
57b3e30b | 5722 | { |
35928349 | 5723 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5724 | return Qnil; |
5725 | } | |
201c831a | 5726 | |
f204989e | 5727 | /* Now find the new top line (starting position) of the window. */ |
521b203e | 5728 | start_display (&it, w, pt); |
f204989e KS |
5729 | it.current_y = 0; |
5730 | move_it_vertically_backward (&it, h); | |
5731 | ||
5732 | /* If extra line spacing is present, we may move too far | |
5733 | back. This causes the last line to be only partially | |
5734 | visible (which triggers redisplay to recenter that line | |
5735 | in the middle), so move forward. | |
5736 | But ignore extra line spacing on last line, as it is not | |
5737 | considered to be part of the visible height of the line. | |
5738 | */ | |
5739 | h += extra_line_spacing; | |
5740 | while (-it.current_y > h) | |
e4cc2dfc | 5741 | move_it_by_lines (&it, 1); |
f204989e | 5742 | |
521b203e GM |
5743 | charpos = IT_CHARPOS (it); |
5744 | bytepos = IT_BYTEPOS (it); | |
57b3e30b | 5745 | |
35928349 | 5746 | bidi_unshelve_cache (itdata, 0); |
6df47b59 | 5747 | } |
521b203e GM |
5748 | else |
5749 | { | |
5750 | struct position pos; | |
f6b43440 | 5751 | |
f6b43440 RS |
5752 | iarg = max (iarg, this_scroll_margin); |
5753 | ||
c54aa166 | 5754 | pos = *vmotion (PT, PT_BYTE, -iarg, w); |
521b203e GM |
5755 | charpos = pos.bufpos; |
5756 | bytepos = pos.bytepos; | |
5757 | } | |
5758 | } | |
5759 | else | |
5760 | { | |
5761 | struct position pos; | |
5762 | int ht = window_internal_height (w); | |
5763 | ||
5764 | if (center_p) | |
a4429c5b | 5765 | iarg = ht / 2; |
f567c488 KS |
5766 | else if (iarg < 0) |
5767 | iarg += ht; | |
f6b43440 RS |
5768 | |
5769 | /* Don't let it get into the margin at either top or bottom. */ | |
2dd61a9b DA |
5770 | iarg = clip_to_bounds (this_scroll_margin, iarg, |
5771 | ht - this_scroll_margin - 1); | |
177c0ea7 | 5772 | |
c54aa166 | 5773 | pos = *vmotion (PT, PT_BYTE, - iarg, w); |
6df47b59 GM |
5774 | charpos = pos.bufpos; |
5775 | bytepos = pos.bytepos; | |
5776 | } | |
5777 | ||
5778 | /* Set the new window start. */ | |
e74aeda8 | 5779 | set_marker_both (w->start, w->contents, charpos, bytepos); |
9d93ce29 | 5780 | w->window_end_valid = 0; |
177c0ea7 | 5781 | |
c98ff5dd | 5782 | w->optional_new_start = 1; |
95605b1b | 5783 | |
c98ff5dd DA |
5784 | w->start_at_line_beg = (bytepos == BEGV_BYTE || |
5785 | FETCH_BYTE (bytepos - 1) == '\n'); | |
177c0ea7 | 5786 | |
478292ed | 5787 | set_buffer_internal (obuf); |
7ab12479 JB |
5788 | return Qnil; |
5789 | } | |
b7617575 | 5790 | |
880e6158 | 5791 | DEFUN ("window-text-width", Fwindow_text_width, Swindow_text_width, |
fdb82f93 | 5792 | 0, 1, 0, |
880e6158 | 5793 | doc: /* Return the width in columns of the text display area of WINDOW. |
52162052 | 5794 | WINDOW must be a live window and defaults to the selected one. |
8fef9de1 | 5795 | |
880e6158 MR |
5796 | The returned width does not include dividers, scrollbars, margins, |
5797 | fringes, nor any partial-width columns at the right of the text | |
5798 | area. */) | |
5842a27b | 5799 | (Lisp_Object window) |
81fe0836 | 5800 | { |
52162052 | 5801 | struct window *w = decode_live_window (window); |
880e6158 MR |
5802 | |
5803 | return make_number (window_box_width (w, TEXT_AREA) | |
5804 | / FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w))); | |
81fe0836 MB |
5805 | } |
5806 | ||
880e6158 MR |
5807 | DEFUN ("window-text-height", Fwindow_text_height, Swindow_text_height, |
5808 | 0, 1, 0, | |
5809 | doc: /* Return the height in lines of the text display area of WINDOW. | |
5810 | WINDOW must be a live window and defaults to the selected one. | |
81fe0836 | 5811 | |
880e6158 MR |
5812 | The returned height does not include dividers, the mode line, any header |
5813 | line, nor any partial-height lines at the bottom of the text area. */) | |
5814 | (Lisp_Object window) | |
5815 | { | |
5816 | struct window *w = decode_live_window (window); | |
5817 | ||
5818 | return make_number (window_box_height (w) | |
5819 | / FRAME_LINE_HEIGHT (WINDOW_XFRAME (w))); | |
5820 | } | |
7ab12479 JB |
5821 | \f |
5822 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
fdb82f93 PJ |
5823 | 1, 1, "P", |
5824 | doc: /* Position point relative to window. | |
87e68db4 JB |
5825 | ARG nil means position point at center of window. |
5826 | Else, ARG specifies vertical position within the window; | |
fdb82f93 | 5827 | zero means top of window, negative means relative to bottom of window. */) |
5842a27b | 5828 | (Lisp_Object arg) |
7ab12479 | 5829 | { |
b7617575 GM |
5830 | struct window *w = XWINDOW (selected_window); |
5831 | int lines, start; | |
540b6aa0 | 5832 | Lisp_Object window; |
f6b43440 RS |
5833 | #if 0 |
5834 | int this_scroll_margin; | |
5835 | #endif | |
7ab12479 | 5836 | |
e74aeda8 DA |
5837 | if (!(BUFFERP (w->contents) && XBUFFER (w->contents) == current_buffer)) |
5838 | /* This test is needed to make sure PT/PT_BYTE make sense in w->contents | |
794b75c7 SM |
5839 | when passed below to set_marker_both. */ |
5840 | error ("move-to-window-line called from unrelated buffer"); | |
6dc1d2d3 | 5841 | |
b7617575 | 5842 | window = selected_window; |
d3d50620 | 5843 | start = marker_position (w->start); |
7ab12479 JB |
5844 | if (start < BEGV || start > ZV) |
5845 | { | |
b7617575 | 5846 | int height = window_internal_height (w); |
cd2be1dd | 5847 | Fvertical_motion (make_number (- (height / 2)), window); |
e74aeda8 | 5848 | set_marker_both (w->start, w->contents, PT, PT_BYTE); |
c98ff5dd DA |
5849 | w->start_at_line_beg = !NILP (Fbolp ()); |
5850 | w->force_start = 1; | |
7ab12479 JB |
5851 | } |
5852 | else | |
d3d50620 | 5853 | Fgoto_char (w->start); |
7ab12479 | 5854 | |
b7617575 | 5855 | lines = displayed_window_lines (w); |
f6b43440 RS |
5856 | |
5857 | #if 0 | |
71f02bc5 | 5858 | this_scroll_margin = max (0, min (scroll_margin, lines / 4)); |
f6b43440 RS |
5859 | #endif |
5860 | ||
b7617575 GM |
5861 | if (NILP (arg)) |
5862 | XSETFASTINT (arg, lines / 2); | |
5863 | else | |
5864 | { | |
71f02bc5 | 5865 | EMACS_INT iarg = XINT (Fprefix_numeric_value (arg)); |
f6b43440 RS |
5866 | |
5867 | if (iarg < 0) | |
5868 | iarg = iarg + lines; | |
5869 | ||
5870 | #if 0 /* This code would prevent move-to-window-line from moving point | |
5871 | to a place inside the scroll margins (which would cause the | |
5872 | next redisplay to scroll). I wrote this code, but then concluded | |
5873 | it is probably better not to install it. However, it is here | |
5874 | inside #if 0 so as not to lose it. -- rms. */ | |
5875 | ||
5876 | /* Don't let it get into the margin at either top or bottom. */ | |
5877 | iarg = max (iarg, this_scroll_margin); | |
5878 | iarg = min (iarg, lines - this_scroll_margin - 1); | |
5879 | #endif | |
5880 | ||
5881 | arg = make_number (iarg); | |
b7617575 GM |
5882 | } |
5883 | ||
c8bc6f65 | 5884 | /* Skip past a partially visible first line. */ |
163784df | 5885 | if (w->vscroll) |
163784df MB |
5886 | XSETINT (arg, XINT (arg) + 1); |
5887 | ||
540b6aa0 | 5888 | return Fvertical_motion (arg, window); |
7ab12479 | 5889 | } |
5500c422 GM |
5890 | |
5891 | ||
7ab12479 | 5892 | \f |
5500c422 GM |
5893 | /*********************************************************************** |
5894 | Window Configuration | |
5895 | ***********************************************************************/ | |
5896 | ||
7ab12479 JB |
5897 | struct save_window_data |
5898 | { | |
b102ceb1 | 5899 | struct vectorlike_header header; |
bdc727bf | 5900 | Lisp_Object selected_frame; |
7ab12479 JB |
5901 | Lisp_Object current_window; |
5902 | Lisp_Object current_buffer; | |
5903 | Lisp_Object minibuf_scroll_window; | |
3f49fddc | 5904 | Lisp_Object minibuf_selected_window; |
7ab12479 | 5905 | Lisp_Object root_window; |
bdc727bf | 5906 | Lisp_Object focus_frame; |
cbff28e8 RS |
5907 | /* A vector, each of whose elements is a struct saved_window |
5908 | for one window. */ | |
7ab12479 | 5909 | Lisp_Object saved_windows; |
b05b4e27 SM |
5910 | |
5911 | /* All fields above are traced by the GC. | |
6b729d16 | 5912 | From `frame-cols' down, the fields are ignored by the GC. */ |
880e6158 MR |
5913 | /* We should be able to do without the following two. */ |
5914 | int frame_cols, frame_lines; | |
f224e500 | 5915 | /* These two should get eventually replaced by their pixel |
880e6158 MR |
5916 | counterparts. */ |
5917 | int frame_menu_bar_lines, frame_tool_bar_lines; | |
5918 | int frame_text_width, frame_text_height; | |
f224e500 PE |
5919 | /* These are currently unused. We need them as soon as we convert |
5920 | to pixels. */ | |
880e6158 | 5921 | int frame_menu_bar_height, frame_tool_bar_height; |
7ab12479 | 5922 | }; |
ff06df24 | 5923 | |
cbff28e8 | 5924 | /* This is saved as a Lisp_Vector */ |
7ab12479 | 5925 | struct saved_window |
ea68264b | 5926 | { |
b102ceb1 | 5927 | struct vectorlike_header header; |
496e208e | 5928 | |
28545e04 | 5929 | Lisp_Object window, buffer, start, pointm, mark; |
880e6158 | 5930 | Lisp_Object pixel_left, pixel_top, pixel_height, pixel_width; |
949cf20f | 5931 | Lisp_Object left_col, top_line, total_cols, total_lines; |
496e208e | 5932 | Lisp_Object normal_cols, normal_lines; |
949cf20f | 5933 | Lisp_Object hscroll, min_hscroll; |
ea68264b GM |
5934 | Lisp_Object parent, prev; |
5935 | Lisp_Object start_at_line_beg; | |
5936 | Lisp_Object display_table; | |
949cf20f KS |
5937 | Lisp_Object left_margin_cols, right_margin_cols; |
5938 | Lisp_Object left_fringe_width, right_fringe_width, fringes_outside_margins; | |
562dd5e9 | 5939 | Lisp_Object scroll_bar_width, vertical_scroll_bar_type, dedicated; |
b6f67890 | 5940 | Lisp_Object combination_limit, window_parameters; |
ea68264b GM |
5941 | }; |
5942 | ||
7ab12479 | 5943 | #define SAVED_WINDOW_N(swv,n) \ |
91f2d272 | 5944 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) |
7ab12479 JB |
5945 | |
5946 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
fdb82f93 | 5947 | doc: /* Return t if OBJECT is a window-configuration object. */) |
5842a27b | 5948 | (Lisp_Object object) |
7ab12479 | 5949 | { |
6ad0381c | 5950 | return WINDOW_CONFIGURATIONP (object) ? Qt : Qnil; |
7ab12479 JB |
5951 | } |
5952 | ||
3f8ab7bd | 5953 | DEFUN ("window-configuration-frame", Fwindow_configuration_frame, Swindow_configuration_frame, 1, 1, 0, |
fdb82f93 | 5954 | doc: /* Return the frame that CONFIG, a window-configuration object, is about. */) |
5842a27b | 5955 | (Lisp_Object config) |
3f8ab7bd RS |
5956 | { |
5957 | register struct save_window_data *data; | |
5958 | struct Lisp_Vector *saved_windows; | |
5959 | ||
663fbbba | 5960 | CHECK_WINDOW_CONFIGURATION (config); |
3f8ab7bd RS |
5961 | |
5962 | data = (struct save_window_data *) XVECTOR (config); | |
5963 | saved_windows = XVECTOR (data->saved_windows); | |
d3d50620 | 5964 | return XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
3f8ab7bd RS |
5965 | } |
5966 | ||
a2b89a51 MR |
5967 | /* From Chong's unwind_create_frame_1. */ |
5968 | static void | |
5969 | unwind_change_frame (Lisp_Object val) | |
5970 | { | |
5971 | inhibit_lisp_code = val; | |
5972 | } | |
5973 | ||
a7ca3326 | 5974 | DEFUN ("set-window-configuration", Fset_window_configuration, |
fdb82f93 PJ |
5975 | Sset_window_configuration, 1, 1, 0, |
5976 | doc: /* Set the configuration of windows and buffers as specified by CONFIGURATION. | |
5977 | CONFIGURATION must be a value previously returned | |
5978 | by `current-window-configuration' (which see). | |
5979 | If CONFIGURATION was made from a frame that is now deleted, | |
5980 | only frame-independent values can be restored. In this case, | |
5981 | the return value is nil. Otherwise the value is t. */) | |
5842a27b | 5982 | (Lisp_Object configuration) |
7ab12479 | 5983 | { |
7ab12479 JB |
5984 | register struct save_window_data *data; |
5985 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 5986 | Lisp_Object new_current_buffer; |
fd482be5 | 5987 | Lisp_Object frame; |
a10c8269 | 5988 | struct frame *f; |
d311d28c | 5989 | ptrdiff_t old_point = -1; |
7ab12479 | 5990 | |
663fbbba | 5991 | CHECK_WINDOW_CONFIGURATION (configuration); |
7ab12479 | 5992 | |
2f83aebe | 5993 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
5994 | saved_windows = XVECTOR (data->saved_windows); |
5995 | ||
7ab12479 | 5996 | new_current_buffer = data->current_buffer; |
e578f381 | 5997 | if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer))) |
7ab12479 | 5998 | new_current_buffer = Qnil; |
72695e47 | 5999 | else |
73cadfc1 DK |
6000 | { |
6001 | if (XBUFFER (new_current_buffer) == current_buffer) | |
e67a1dea SM |
6002 | /* The code further down "preserves point" by saving here PT in |
6003 | old_point and then setting it later back into PT. When the | |
6004 | current-selected-window and the final-selected-window both show | |
6005 | the current buffer, this suffers from the problem that the | |
6006 | current PT is the window-point of the current-selected-window, | |
6007 | while the final PT is the point of the final-selected-window, so | |
6008 | this copy from one PT to the other would end up moving the | |
6009 | window-point of the final-selected-window to the window-point of | |
6010 | the current-selected-window. So we have to be careful which | |
6011 | point of the current-buffer we copy into old_point. */ | |
e74aeda8 | 6012 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer) |
e67a1dea | 6013 | && WINDOWP (selected_window) |
e74aeda8 | 6014 | && EQ (XWINDOW (selected_window)->contents, new_current_buffer) |
e67a1dea | 6015 | && !EQ (selected_window, data->current_window)) |
4c1acb95 | 6016 | old_point = marker_position (XWINDOW (data->current_window)->pointm); |
e67a1dea SM |
6017 | else |
6018 | old_point = PT; | |
73cadfc1 | 6019 | else |
203eb0aa SM |
6020 | /* BUF_PT (XBUFFER (new_current_buffer)) gives us the position of |
6021 | point in new_current_buffer as of the last time this buffer was | |
6022 | used. This can be non-deterministic since it can be changed by | |
6023 | things like jit-lock by mere temporary selection of some random | |
6024 | window that happens to show this buffer. | |
6025 | So if possible we want this arbitrary choice of "which point" to | |
6026 | be the one from the to-be-selected-window so as to prevent this | |
6027 | window's cursor from being copied from another window. */ | |
e74aeda8 | 6028 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer) |
203eb0aa SM |
6029 | /* If current_window = selected_window, its point is in BUF_PT. */ |
6030 | && !EQ (selected_window, data->current_window)) | |
4c1acb95 | 6031 | old_point = marker_position (XWINDOW (data->current_window)->pointm); |
203eb0aa SM |
6032 | else |
6033 | old_point = BUF_PT (XBUFFER (new_current_buffer)); | |
73cadfc1 | 6034 | } |
7ab12479 | 6035 | |
d3d50620 | 6036 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
fd482be5 | 6037 | f = XFRAME (frame); |
177c0ea7 | 6038 | |
fd482be5 JB |
6039 | /* If f is a dead frame, don't bother rebuilding its window tree. |
6040 | However, there is other stuff we should still try to do below. */ | |
6041 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 6042 | { |
6198ccd0 MR |
6043 | Lisp_Object window; |
6044 | Lisp_Object dead_windows = Qnil; | |
6a6ee00d | 6045 | register Lisp_Object tem, par, pers; |
fd482be5 JB |
6046 | register struct window *w; |
6047 | register struct saved_window *p; | |
5500c422 GM |
6048 | struct window *root_window; |
6049 | struct window **leaf_windows; | |
6050 | int n_leaf_windows; | |
71f02bc5 PE |
6051 | ptrdiff_t k; |
6052 | int i, n; | |
a2b89a51 | 6053 | ptrdiff_t count = SPECPDL_INDEX (); |
fd482be5 JB |
6054 | /* If the frame has been resized since this window configuration was |
6055 | made, we change the frame to the size specified in the | |
6056 | configuration, restore the configuration, and then resize it | |
6057 | back. We keep track of the prevailing height in these variables. */ | |
880e6158 MR |
6058 | int previous_frame_text_height = FRAME_TEXT_HEIGHT (f); |
6059 | int previous_frame_text_width = FRAME_TEXT_WIDTH (f); | |
6ae87264 JB |
6060 | /* int previous_frame_menu_bar_height = FRAME_MENU_BAR_HEIGHT (f); */ |
6061 | /* int previous_frame_tool_bar_height = FRAME_TOOL_BAR_HEIGHT (f); */ | |
6062 | /* int previous_frame_lines = FRAME_LINES (f); */ | |
6063 | /* int previous_frame_cols = FRAME_COLS (f); */ | |
8f6ea2e9 | 6064 | int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); |
9ea173e8 | 6065 | int previous_frame_tool_bar_lines = FRAME_TOOL_BAR_LINES (f); |
fd482be5 | 6066 | |
37b9743e MR |
6067 | /* Don't do this within the main loop below: This may call Lisp |
6068 | code and is thus potentially unsafe while input is blocked. */ | |
6069 | for (k = 0; k < saved_windows->header.size; k++) | |
6070 | { | |
6071 | p = SAVED_WINDOW_N (saved_windows, k); | |
6072 | window = p->window; | |
6073 | w = XWINDOW (window); | |
e74aeda8 DA |
6074 | if (BUFFERP (w->contents) |
6075 | && !EQ (w->contents, p->buffer) | |
e578f381 | 6076 | && BUFFER_LIVE_P (XBUFFER (p->buffer))) |
37b9743e MR |
6077 | /* If a window we restore gets another buffer, record the |
6078 | window's old buffer. */ | |
6079 | call1 (Qrecord_window_buffer, window); | |
6080 | } | |
6081 | ||
a2b89a51 MR |
6082 | /* Don't run lisp in the following segment since the frame is in a |
6083 | completely inconsistent state. See Bug#16207. */ | |
6084 | record_unwind_protect (unwind_change_frame, inhibit_lisp_code); | |
6085 | inhibit_lisp_code = Qt; | |
d2b35234 RS |
6086 | /* The mouse highlighting code could get screwed up |
6087 | if it runs during this. */ | |
4d7e6e51 | 6088 | block_input (); |
d2b35234 | 6089 | |
880e6158 MR |
6090 | if (data->frame_text_width != previous_frame_text_width |
6091 | || data->frame_text_height != previous_frame_text_height) | |
6092 | change_frame_size (f, data->frame_text_width, | |
6093 | data->frame_text_height, 0, 0, 0, 1); | |
6094 | ||
6095 | if (data->frame_menu_bar_lines != previous_frame_menu_bar_lines) | |
b5e9cbb6 | 6096 | { |
6509f772 | 6097 | #ifdef HAVE_WINDOW_SYSTEM |
b5e9cbb6 EZ |
6098 | if (FRAME_WINDOW_P (f)) |
6099 | x_set_menu_bar_lines (f, make_number (data->frame_menu_bar_lines), | |
6100 | make_number (0)); | |
6101 | else /* TTY or MSDOS */ | |
6509f772 | 6102 | #endif |
b5e9cbb6 EZ |
6103 | set_menu_bar_lines (f, make_number (data->frame_menu_bar_lines), |
6104 | make_number (0)); | |
6105 | } | |
4314246f | 6106 | #ifdef HAVE_WINDOW_SYSTEM |
880e6158 | 6107 | if (data->frame_tool_bar_lines != previous_frame_tool_bar_lines) |
b05b4e27 SM |
6108 | x_set_tool_bar_lines (f, make_number (data->frame_tool_bar_lines), |
6109 | make_number (0)); | |
217f2871 | 6110 | #endif |
fd482be5 | 6111 | |
a46c0153 RS |
6112 | /* "Swap out" point from the selected window's buffer |
6113 | into the window itself. (Normally the pointm of the selected | |
6114 | window holds garbage.) We do this now, before | |
719eaeb1 GM |
6115 | restoring the window contents, and prevent it from |
6116 | being done later on when we select a new window. */ | |
e74aeda8 | 6117 | if (! NILP (XWINDOW (selected_window)->contents)) |
596ae0cf RS |
6118 | { |
6119 | w = XWINDOW (selected_window); | |
d3d50620 | 6120 | set_marker_both (w->pointm, |
e74aeda8 DA |
6121 | w->contents, |
6122 | BUF_PT (XBUFFER (w->contents)), | |
6123 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
596ae0cf RS |
6124 | } |
6125 | ||
5961ad6c | 6126 | fset_redisplay (f); |
29aeee73 | 6127 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
fd482be5 | 6128 | |
5500c422 | 6129 | /* Problem: Freeing all matrices and later allocating them again |
177c0ea7 | 6130 | is a serious redisplay flickering problem. What we would |
5500c422 | 6131 | really like to do is to free only those matrices not reused |
9d14503e | 6132 | below. */ |
5500c422 | 6133 | root_window = XWINDOW (FRAME_ROOT_WINDOW (f)); |
38182d90 PE |
6134 | leaf_windows = alloca (count_windows (root_window) |
6135 | * sizeof *leaf_windows); | |
5500c422 GM |
6136 | n_leaf_windows = get_leaf_windows (root_window, leaf_windows, 0); |
6137 | ||
fd482be5 JB |
6138 | /* Kludge Alert! |
6139 | Mark all windows now on frame as "deleted". | |
6140 | Restoring the new configuration "undeletes" any that are in it. | |
37962e60 | 6141 | |
fd482be5 JB |
6142 | Save their current buffers in their height fields, since we may |
6143 | need it later, if a buffer saved in the configuration is now | |
6144 | dead. */ | |
be7f5545 | 6145 | delete_all_child_windows (FRAME_ROOT_WINDOW (f)); |
fd482be5 | 6146 | |
eab3844f | 6147 | for (k = 0; k < saved_windows->header.size; k++) |
fd482be5 JB |
6148 | { |
6149 | p = SAVED_WINDOW_N (saved_windows, k); | |
6198ccd0 MR |
6150 | window = p->window; |
6151 | w = XWINDOW (window); | |
e8c17b81 | 6152 | wset_next (w, Qnil); |
7ab12479 | 6153 | |
fd482be5 | 6154 | if (!NILP (p->parent)) |
e8c17b81 PE |
6155 | wset_parent |
6156 | (w, SAVED_WINDOW_N (saved_windows, XFASTINT (p->parent))->window); | |
fd482be5 | 6157 | else |
e8c17b81 | 6158 | wset_parent (w, Qnil); |
7ab12479 | 6159 | |
fd482be5 | 6160 | if (!NILP (p->prev)) |
7ab12479 | 6161 | { |
e8c17b81 PE |
6162 | wset_prev |
6163 | (w, SAVED_WINDOW_N (saved_windows, XFASTINT (p->prev))->window); | |
6164 | wset_next (XWINDOW (w->prev), p->window); | |
fd482be5 JB |
6165 | } |
6166 | else | |
6167 | { | |
e8c17b81 | 6168 | wset_prev (w, Qnil); |
d3d50620 | 6169 | if (!NILP (w->parent)) |
e74aeda8 DA |
6170 | wset_combination (XWINDOW (w->parent), |
6171 | (XINT (p->total_cols) | |
6172 | != XWINDOW (w->parent)->total_cols), | |
6173 | p->window); | |
fd482be5 JB |
6174 | } |
6175 | ||
095d384d DA |
6176 | /* If we squirreled away the buffer, restore it now. */ |
6177 | if (BUFFERP (w->combination_limit)) | |
6178 | wset_buffer (w, w->combination_limit); | |
880e6158 MR |
6179 | w->pixel_left = XFASTINT (p->pixel_left); |
6180 | w->pixel_top = XFASTINT (p->pixel_top); | |
6181 | w->pixel_width = XFASTINT (p->pixel_width); | |
6182 | w->pixel_height = XFASTINT (p->pixel_height); | |
5f24fa51 DA |
6183 | w->left_col = XFASTINT (p->left_col); |
6184 | w->top_line = XFASTINT (p->top_line); | |
6185 | w->total_cols = XFASTINT (p->total_cols); | |
6186 | w->total_lines = XFASTINT (p->total_lines); | |
e8c17b81 PE |
6187 | wset_normal_cols (w, p->normal_cols); |
6188 | wset_normal_lines (w, p->normal_lines); | |
80b00b08 DA |
6189 | w->hscroll = XFASTINT (p->hscroll); |
6190 | w->min_hscroll = XFASTINT (p->min_hscroll); | |
e8c17b81 | 6191 | wset_display_table (w, p->display_table); |
eeaf9bf3 DA |
6192 | w->left_margin_cols = XINT (p->left_margin_cols); |
6193 | w->right_margin_cols = XINT (p->right_margin_cols); | |
9e37ee3b DA |
6194 | w->left_fringe_width = XINT (p->left_fringe_width); |
6195 | w->right_fringe_width = XINT (p->right_fringe_width); | |
2af3565e | 6196 | w->fringes_outside_margins = !NILP (p->fringes_outside_margins); |
38a2c910 | 6197 | w->scroll_bar_width = XINT (p->scroll_bar_width); |
e8c17b81 PE |
6198 | wset_vertical_scroll_bar_type (w, p->vertical_scroll_bar_type); |
6199 | wset_dedicated (w, p->dedicated); | |
6200 | wset_combination_limit (w, p->combination_limit); | |
6a6ee00d MR |
6201 | /* Restore any window parameters that have been saved. |
6202 | Parameters that have not been saved are left alone. */ | |
6203 | for (tem = p->window_parameters; CONSP (tem); tem = XCDR (tem)) | |
6204 | { | |
6205 | pers = XCAR (tem); | |
6206 | if (CONSP (pers)) | |
6207 | { | |
6208 | if (NILP (XCDR (pers))) | |
6209 | { | |
d3d50620 | 6210 | par = Fassq (XCAR (pers), w->window_parameters); |
6a6ee00d MR |
6211 | if (CONSP (par) && !NILP (XCDR (par))) |
6212 | /* Reset a parameter to nil if and only if it | |
6213 | has a non-nil association. Don't make new | |
6214 | associations. */ | |
6215 | Fsetcdr (par, Qnil); | |
6216 | } | |
6217 | else | |
6218 | /* Always restore a non-nil value. */ | |
6219 | Fset_window_parameter (window, XCAR (pers), XCDR (pers)); | |
6220 | } | |
6221 | } | |
6222 | ||
e74aeda8 | 6223 | if (BUFFERP (p->buffer) && BUFFER_LIVE_P (XBUFFER (p->buffer))) |
6198ccd0 MR |
6224 | /* If saved buffer is alive, install it. */ |
6225 | { | |
e8c17b81 PE |
6226 | wset_buffer (w, p->buffer); |
6227 | w->start_at_line_beg = !NILP (p->start_at_line_beg); | |
e74aeda8 | 6228 | set_marker_restricted (w->start, p->start, w->contents); |
e8c17b81 | 6229 | set_marker_restricted (w->pointm, p->pointm, |
e74aeda8 DA |
6230 | w->contents); |
6231 | Fset_marker (BVAR (XBUFFER (w->contents), mark), | |
6232 | p->mark, w->contents); | |
e8c17b81 PE |
6233 | |
6234 | /* As documented in Fcurrent_window_configuration, don't | |
6235 | restore the location of point in the buffer which was | |
6236 | current when the window configuration was recorded. */ | |
6237 | if (!EQ (p->buffer, new_current_buffer) | |
6238 | && XBUFFER (p->buffer) == current_buffer) | |
6239 | Fgoto_char (w->pointm); | |
077288cf | 6240 | } |
e74aeda8 DA |
6241 | else if (BUFFERP (w->contents) && BUFFER_LIVE_P (XBUFFER (w->contents))) |
6242 | /* Keep window's old buffer; make sure the markers are real. */ | |
6243 | { | |
6244 | /* Set window markers at start of visible range. */ | |
6245 | if (XMARKER (w->start)->buffer == 0) | |
6246 | set_marker_restricted_both (w->start, w->contents, 0, 0); | |
6247 | if (XMARKER (w->pointm)->buffer == 0) | |
6248 | set_marker_restricted_both | |
6249 | (w->pointm, w->contents, | |
6250 | BUF_PT (XBUFFER (w->contents)), | |
6251 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
6252 | w->start_at_line_beg = 1; | |
6253 | } | |
6254 | else if (!NILP (w->start)) | |
6255 | /* Leaf window has no live buffer, get one. */ | |
fd482be5 | 6256 | { |
6198ccd0 MR |
6257 | /* Get the buffer via other_buffer_safely in order to |
6258 | avoid showing an unimportant buffer and, if necessary, to | |
6259 | recreate *scratch* in the course (part of Juanma's bs-show | |
6260 | scenario from March 2011). */ | |
e8c17b81 | 6261 | wset_buffer (w, other_buffer_safely (Fcurrent_buffer ())); |
6198ccd0 MR |
6262 | /* This will set the markers to beginning of visible |
6263 | range. */ | |
e74aeda8 DA |
6264 | set_marker_restricted_both (w->start, w->contents, 0, 0); |
6265 | set_marker_restricted_both (w->pointm, w->contents, 0, 0); | |
c98ff5dd | 6266 | w->start_at_line_beg = 1; |
d3d50620 | 6267 | if (!NILP (w->dedicated)) |
6198ccd0 MR |
6268 | /* Record this window as dead. */ |
6269 | dead_windows = Fcons (window, dead_windows); | |
6270 | /* Make sure window is no more dedicated. */ | |
e8c17b81 | 6271 | wset_dedicated (w, Qnil); |
7ab12479 JB |
6272 | } |
6273 | } | |
9ace597f | 6274 | |
f00af5b1 | 6275 | fset_root_window (f, data->root_window); |
a46c0153 RS |
6276 | /* Arrange *not* to restore point in the buffer that was |
6277 | current when the window configuration was saved. */ | |
e74aeda8 | 6278 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer)) |
d3d50620 | 6279 | set_marker_restricted (XWINDOW (data->current_window)->pointm, |
18787f5e | 6280 | make_number (old_point), |
e74aeda8 | 6281 | XWINDOW (data->current_window)->contents); |
177c0ea7 | 6282 | |
a2b89a51 MR |
6283 | /* In the following call to `select-window', prevent "swapping out |
6284 | point" in the old selected window using the buffer that has | |
6285 | been restored into it. We already swapped out that point from | |
6286 | that window's old buffer. | |
6287 | ||
6288 | Do not record the buffer here. We do that in a separate call | |
6289 | to select_window below. See also Bug#16207. */ | |
6290 | select_window (data->current_window, Qt, 1); | |
6291 | BVAR (XBUFFER (XWINDOW (selected_window)->contents), | |
6292 | last_selected_window) | |
6293 | = selected_window; | |
6294 | ||
db269683 | 6295 | if (NILP (data->focus_frame) |
017b2bad | 6296 | || (FRAMEP (data->focus_frame) |
db269683 JB |
6297 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) |
6298 | Fredirect_frame_focus (frame, data->focus_frame); | |
7ab12479 | 6299 | |
880e6158 MR |
6300 | /* Set the frame size to the value it had before this function. */ |
6301 | if (previous_frame_text_width != FRAME_TEXT_WIDTH (f) | |
6302 | || previous_frame_text_height != FRAME_TEXT_HEIGHT (f)) | |
6303 | change_frame_size (f, previous_frame_text_width, | |
6304 | previous_frame_text_height, 0, 0, 0, 1); | |
6305 | ||
8f6ea2e9 | 6306 | if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f)) |
b5e9cbb6 | 6307 | { |
6509f772 | 6308 | #ifdef HAVE_WINDOW_SYSTEM |
b5e9cbb6 EZ |
6309 | if (FRAME_WINDOW_P (f)) |
6310 | x_set_menu_bar_lines (f, | |
6311 | make_number (previous_frame_menu_bar_lines), | |
6312 | make_number (0)); | |
6313 | else /* TTY or MSDOS */ | |
6509f772 | 6314 | #endif |
b5e9cbb6 EZ |
6315 | set_menu_bar_lines (f, make_number (previous_frame_menu_bar_lines), |
6316 | make_number (0)); | |
6317 | } | |
4314246f | 6318 | #ifdef HAVE_WINDOW_SYSTEM |
9ea173e8 GM |
6319 | if (previous_frame_tool_bar_lines != FRAME_TOOL_BAR_LINES (f)) |
6320 | x_set_tool_bar_lines (f, make_number (previous_frame_tool_bar_lines), | |
6321 | make_number (0)); | |
217f2871 | 6322 | #endif |
d2b35234 | 6323 | |
5500c422 | 6324 | /* Now, free glyph matrices in windows that were not reused. */ |
c4280705 GM |
6325 | for (i = n = 0; i < n_leaf_windows; ++i) |
6326 | { | |
e74aeda8 DA |
6327 | if (NILP (leaf_windows[i]->contents)) |
6328 | free_window_matrices (leaf_windows[i]); | |
6329 | else if (EQ (leaf_windows[i]->contents, new_current_buffer)) | |
c4280705 GM |
6330 | ++n; |
6331 | } | |
177c0ea7 | 6332 | |
bd0443bb | 6333 | adjust_frame_glyphs (f); |
4d7e6e51 | 6334 | unblock_input (); |
a2b89a51 | 6335 | unbind_to (count, Qnil); |
756b6edc | 6336 | |
6198ccd0 MR |
6337 | /* Scan dead buffer windows. */ |
6338 | for (; CONSP (dead_windows); dead_windows = XCDR (dead_windows)) | |
6339 | { | |
6340 | window = XCAR (dead_windows); | |
6341 | if (WINDOW_LIVE_P (window) && !EQ (window, FRAME_ROOT_WINDOW (f))) | |
6342 | delete_deletable_window (window); | |
6343 | } | |
6344 | ||
a2b89a51 MR |
6345 | /* Record the selected window's buffer here. The window should |
6346 | already be the selected one from the call above. */ | |
6347 | select_window (data->current_window, Qnil, 0); | |
ef869611 | 6348 | |
478292ed RS |
6349 | /* Fselect_window will have made f the selected frame, so we |
6350 | reselect the proper frame here. Fhandle_switch_frame will change the | |
6351 | selected window too, but that doesn't make the call to | |
6352 | Fselect_window above totally superfluous; it still sets f's | |
6353 | selected window. */ | |
6354 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) | |
c6932ecd | 6355 | do_switch_frame (data->selected_frame, 0, 0, Qnil); |
478292ed | 6356 | |
eeca6f6f | 6357 | run_window_configuration_change_hook (f); |
478292ed | 6358 | } |
bdc727bf JB |
6359 | |
6360 | if (!NILP (new_current_buffer)) | |
c4b6914d MR |
6361 | { |
6362 | Fset_buffer (new_current_buffer); | |
6363 | /* If the new current buffer doesn't appear in the selected | |
6364 | window, go to its old point (see bug#12208). */ | |
e74aeda8 | 6365 | if (!EQ (XWINDOW (data->current_window)->contents, new_current_buffer)) |
c4b6914d MR |
6366 | Fgoto_char (make_number (old_point)); |
6367 | } | |
bdc727bf | 6368 | |
478292ed | 6369 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
3dbab091 | 6370 | minibuf_selected_window = data->minibuf_selected_window; |
543f5fb1 | 6371 | |
3f8ab7bd | 6372 | return (FRAME_LIVE_P (f) ? Qt : Qnil); |
7ab12479 JB |
6373 | } |
6374 | ||
27e498e6 PE |
6375 | void |
6376 | restore_window_configuration (Lisp_Object configuration) | |
6377 | { | |
6378 | Fset_window_configuration (configuration); | |
6379 | } | |
6380 | ||
562dd5e9 | 6381 | |
e74aeda8 DA |
6382 | /* If WINDOW is an internal window, recursively delete all child windows |
6383 | reachable via the next and contents slots of WINDOW. Otherwise setup | |
6384 | WINDOW to not show any buffer. */ | |
6385 | ||
fd482be5 | 6386 | void |
be7f5545 | 6387 | delete_all_child_windows (Lisp_Object window) |
7ab12479 | 6388 | { |
fa8a67e6 MR |
6389 | register struct window *w; |
6390 | ||
6391 | w = XWINDOW (window); | |
6392 | ||
d3d50620 | 6393 | if (!NILP (w->next)) |
fa8a67e6 | 6394 | /* Delete WINDOW's siblings (we traverse postorderly). */ |
d3d50620 | 6395 | delete_all_child_windows (w->next); |
605be8af | 6396 | |
e74aeda8 | 6397 | if (WINDOWP (w->contents)) |
fa8a67e6 | 6398 | { |
e74aeda8 DA |
6399 | delete_all_child_windows (w->contents); |
6400 | wset_combination (w, 0, Qnil); | |
fa8a67e6 | 6401 | } |
e74aeda8 | 6402 | else if (BUFFERP (w->contents)) |
fa8a67e6 MR |
6403 | { |
6404 | unshow_buffer (w); | |
d3d50620 DA |
6405 | unchain_marker (XMARKER (w->pointm)); |
6406 | unchain_marker (XMARKER (w->start)); | |
095d384d DA |
6407 | /* Since combination limit makes sense for an internal windows |
6408 | only, we use this slot to save the buffer for the sake of | |
6409 | possible resurrection in Fset_window_configuration. */ | |
e74aeda8 | 6410 | wset_combination_limit (w, w->contents); |
e8c17b81 | 6411 | wset_buffer (w, Qnil); |
fa8a67e6 | 6412 | } |
acf70840 GM |
6413 | |
6414 | Vwindow_list = Qnil; | |
7ab12479 JB |
6415 | } |
6416 | \f | |
6417 | static int | |
971de7fb | 6418 | count_windows (register struct window *window) |
7ab12479 JB |
6419 | { |
6420 | register int count = 1; | |
d3d50620 DA |
6421 | if (!NILP (window->next)) |
6422 | count += count_windows (XWINDOW (window->next)); | |
e74aeda8 DA |
6423 | if (WINDOWP (window->contents)) |
6424 | count += count_windows (XWINDOW (window->contents)); | |
7ab12479 JB |
6425 | return count; |
6426 | } | |
6427 | ||
5500c422 | 6428 | |
177c0ea7 | 6429 | /* Fill vector FLAT with leaf windows under W, starting at index I. |
5500c422 | 6430 | Value is last index + 1. */ |
5500c422 | 6431 | static int |
971de7fb | 6432 | get_leaf_windows (struct window *w, struct window **flat, int i) |
5500c422 GM |
6433 | { |
6434 | while (w) | |
6435 | { | |
e74aeda8 DA |
6436 | if (WINDOWP (w->contents)) |
6437 | i = get_leaf_windows (XWINDOW (w->contents), flat, i); | |
177c0ea7 | 6438 | else |
5500c422 GM |
6439 | flat[i++] = w; |
6440 | ||
d3d50620 | 6441 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
5500c422 GM |
6442 | } |
6443 | ||
6444 | return i; | |
6445 | } | |
6446 | ||
6447 | ||
6448 | /* Return a pointer to the glyph W's physical cursor is on. Value is | |
c80e3b4a | 6449 | null if W's current matrix is invalid, so that no meaningful glyph |
5500c422 | 6450 | can be returned. */ |
5500c422 | 6451 | struct glyph * |
971de7fb | 6452 | get_phys_cursor_glyph (struct window *w) |
5500c422 GM |
6453 | { |
6454 | struct glyph_row *row; | |
6455 | struct glyph *glyph; | |
f8fe6f96 | 6456 | int hpos = w->phys_cursor.hpos; |
5500c422 | 6457 | |
f8fe6f96 EZ |
6458 | if (!(w->phys_cursor.vpos >= 0 |
6459 | && w->phys_cursor.vpos < w->current_matrix->nrows)) | |
6460 | return NULL; | |
6461 | ||
6462 | row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos); | |
6463 | if (!row->enabled_p) | |
6464 | return NULL; | |
6465 | ||
80b00b08 | 6466 | if (w->hscroll) |
f8fe6f96 EZ |
6467 | { |
6468 | /* When the window is hscrolled, cursor hpos can legitimately be | |
6469 | out of bounds, but we draw the cursor at the corresponding | |
6470 | window margin in that case. */ | |
6471 | if (!row->reversed_p && hpos < 0) | |
6472 | hpos = 0; | |
6473 | if (row->reversed_p && hpos >= row->used[TEXT_AREA]) | |
6474 | hpos = row->used[TEXT_AREA] - 1; | |
6475 | } | |
5500c422 | 6476 | |
7216e43b | 6477 | if (0 <= hpos && hpos < row->used[TEXT_AREA]) |
f8fe6f96 | 6478 | glyph = row->glyphs[TEXT_AREA] + hpos; |
5500c422 GM |
6479 | else |
6480 | glyph = NULL; | |
6481 | ||
6482 | return glyph; | |
6483 | } | |
6484 | ||
6485 | ||
7ab12479 | 6486 | static int |
971de7fb | 6487 | save_window_save (Lisp_Object window, struct Lisp_Vector *vector, int i) |
7ab12479 JB |
6488 | { |
6489 | register struct saved_window *p; | |
6490 | register struct window *w; | |
6a6ee00d | 6491 | register Lisp_Object tem, pers, par; |
7ab12479 | 6492 | |
e74aeda8 | 6493 | for (; !NILP (window); window = w->next) |
7ab12479 JB |
6494 | { |
6495 | p = SAVED_WINDOW_N (vector, i); | |
6496 | w = XWINDOW (window); | |
6497 | ||
e8c17b81 | 6498 | wset_temslot (w, make_number (i)); i++; |
7ab12479 | 6499 | p->window = window; |
e74aeda8 | 6500 | p->buffer = (WINDOW_LEAF_P (w) ? w->contents : Qnil); |
880e6158 MR |
6501 | p->pixel_left = make_number (w->pixel_left); |
6502 | p->pixel_top = make_number (w->pixel_top); | |
6503 | p->pixel_width = make_number (w->pixel_width); | |
6504 | p->pixel_height = make_number (w->pixel_height); | |
5f24fa51 DA |
6505 | p->left_col = make_number (w->left_col); |
6506 | p->top_line = make_number (w->top_line); | |
6507 | p->total_cols = make_number (w->total_cols); | |
6508 | p->total_lines = make_number (w->total_lines); | |
d3d50620 DA |
6509 | p->normal_cols = w->normal_cols; |
6510 | p->normal_lines = w->normal_lines; | |
80b00b08 DA |
6511 | XSETFASTINT (p->hscroll, w->hscroll); |
6512 | XSETFASTINT (p->min_hscroll, w->min_hscroll); | |
d3d50620 | 6513 | p->display_table = w->display_table; |
eeaf9bf3 DA |
6514 | p->left_margin_cols = make_number (w->left_margin_cols); |
6515 | p->right_margin_cols = make_number (w->right_margin_cols); | |
9e37ee3b DA |
6516 | p->left_fringe_width = make_number (w->left_fringe_width); |
6517 | p->right_fringe_width = make_number (w->right_fringe_width); | |
2af3565e | 6518 | p->fringes_outside_margins = w->fringes_outside_margins ? Qt : Qnil; |
38a2c910 | 6519 | p->scroll_bar_width = make_number (w->scroll_bar_width); |
d3d50620 DA |
6520 | p->vertical_scroll_bar_type = w->vertical_scroll_bar_type; |
6521 | p->dedicated = w->dedicated; | |
6522 | p->combination_limit = w->combination_limit; | |
6a6ee00d MR |
6523 | p->window_parameters = Qnil; |
6524 | ||
6525 | if (!NILP (Vwindow_persistent_parameters)) | |
6526 | { | |
6527 | /* Run cycle detection on Vwindow_persistent_parameters. */ | |
6528 | Lisp_Object tortoise, hare; | |
6529 | ||
6530 | hare = tortoise = Vwindow_persistent_parameters; | |
6531 | while (CONSP (hare)) | |
6532 | { | |
6533 | hare = XCDR (hare); | |
6534 | if (!CONSP (hare)) | |
6535 | break; | |
6536 | ||
6537 | hare = XCDR (hare); | |
6538 | tortoise = XCDR (tortoise); | |
6539 | ||
6540 | if (EQ (hare, tortoise)) | |
6541 | /* Reset Vwindow_persistent_parameters to Qnil. */ | |
6542 | { | |
6543 | Vwindow_persistent_parameters = Qnil; | |
6544 | break; | |
6545 | } | |
6546 | } | |
6547 | ||
6548 | for (tem = Vwindow_persistent_parameters; CONSP (tem); | |
6549 | tem = XCDR (tem)) | |
6550 | { | |
6551 | pers = XCAR (tem); | |
34a02f46 MR |
6552 | /* Save values for persistent window parameters. */ |
6553 | if (CONSP (pers) && !NILP (XCDR (pers))) | |
6a6ee00d | 6554 | { |
d3d50620 | 6555 | par = Fassq (XCAR (pers), w->window_parameters); |
6a6ee00d MR |
6556 | if (NILP (par)) |
6557 | /* If the window has no value for the parameter, | |
6558 | make one. */ | |
6559 | p->window_parameters = Fcons (Fcons (XCAR (pers), Qnil), | |
6560 | p->window_parameters); | |
6561 | else | |
6562 | /* If the window has a value for the parameter, | |
6563 | save it. */ | |
6564 | p->window_parameters = Fcons (Fcons (XCAR (par), | |
6565 | XCDR (par)), | |
6566 | p->window_parameters); | |
6567 | } | |
6568 | } | |
6569 | } | |
6570 | ||
e74aeda8 | 6571 | if (BUFFERP (w->contents)) |
7ab12479 | 6572 | { |
6a6ee00d MR |
6573 | /* Save w's value of point in the window configuration. If w |
6574 | is the selected window, then get the value of point from | |
6575 | the buffer; pointm is garbage in the selected window. */ | |
7ab12479 | 6576 | if (EQ (window, selected_window)) |
e74aeda8 DA |
6577 | p->pointm = build_marker (XBUFFER (w->contents), |
6578 | BUF_PT (XBUFFER (w->contents)), | |
6579 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
7ab12479 | 6580 | else |
d3d50620 | 6581 | p->pointm = Fcopy_marker (w->pointm, Qnil); |
de8c03dc SM |
6582 | XMARKER (p->pointm)->insertion_type |
6583 | = !NILP (Vwindow_point_insertion_type); | |
7ab12479 | 6584 | |
d3d50620 | 6585 | p->start = Fcopy_marker (w->start, Qnil); |
c98ff5dd | 6586 | p->start_at_line_beg = w->start_at_line_beg ? Qt : Qnil; |
7ab12479 | 6587 | |
e74aeda8 | 6588 | tem = BVAR (XBUFFER (w->contents), mark); |
eeb82665 | 6589 | p->mark = Fcopy_marker (tem, Qnil); |
7ab12479 JB |
6590 | } |
6591 | else | |
6592 | { | |
6593 | p->pointm = Qnil; | |
6594 | p->start = Qnil; | |
6595 | p->mark = Qnil; | |
6596 | p->start_at_line_beg = Qnil; | |
6597 | } | |
6598 | ||
d3d50620 | 6599 | if (NILP (w->parent)) |
7ab12479 JB |
6600 | p->parent = Qnil; |
6601 | else | |
d3d50620 | 6602 | p->parent = XWINDOW (w->parent)->temslot; |
7ab12479 | 6603 | |
d3d50620 | 6604 | if (NILP (w->prev)) |
7ab12479 JB |
6605 | p->prev = Qnil; |
6606 | else | |
d3d50620 | 6607 | p->prev = XWINDOW (w->prev)->temslot; |
7ab12479 | 6608 | |
e74aeda8 DA |
6609 | if (WINDOWP (w->contents)) |
6610 | i = save_window_save (w->contents, vector, i); | |
7ab12479 JB |
6611 | } |
6612 | ||
6613 | return i; | |
6614 | } | |
6615 | ||
a7ca3326 | 6616 | DEFUN ("current-window-configuration", Fcurrent_window_configuration, |
fdb82f93 PJ |
6617 | Scurrent_window_configuration, 0, 1, 0, |
6618 | doc: /* Return an object representing the current window configuration of FRAME. | |
6619 | If FRAME is nil or omitted, use the selected frame. | |
6620 | This describes the number of windows, their sizes and current buffers, | |
6621 | and for each displayed buffer, where display starts, and the positions of | |
6622 | point and mark. An exception is made for point in the current buffer: | |
6623 | its value is -not- saved. | |
6624 | This also records the currently selected frame, and FRAME's focus | |
34a02f46 MR |
6625 | redirection (see `redirect-frame-focus'). The variable |
6626 | `window-persistent-parameters' specifies which window parameters are | |
6627 | saved by this function. */) | |
5842a27b | 6628 | (Lisp_Object frame) |
7ab12479 JB |
6629 | { |
6630 | register Lisp_Object tem; | |
6631 | register int n_windows; | |
6632 | register struct save_window_data *data; | |
6633 | register int i; | |
d9f07150 | 6634 | struct frame *f = decode_live_frame (frame); |
7ab12479 | 6635 | |
44fa5b1e | 6636 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
b05b4e27 SM |
6637 | data = ALLOCATE_PSEUDOVECTOR (struct save_window_data, frame_cols, |
6638 | PVEC_WINDOW_CONFIGURATION); | |
6639 | ||
6640 | data->frame_cols = FRAME_COLS (f); | |
6641 | data->frame_lines = FRAME_LINES (f); | |
6642 | data->frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); | |
6643 | data->frame_tool_bar_lines = FRAME_TOOL_BAR_LINES (f); | |
880e6158 MR |
6644 | data->frame_text_width = FRAME_TEXT_WIDTH (f); |
6645 | data->frame_text_height = FRAME_TEXT_HEIGHT (f); | |
6646 | data->frame_menu_bar_height = FRAME_MENU_BAR_HEIGHT (f); | |
6647 | data->frame_tool_bar_height = FRAME_TOOL_BAR_HEIGHT (f); | |
1ae1a37d | 6648 | data->selected_frame = selected_frame; |
44fa5b1e | 6649 | data->current_window = FRAME_SELECTED_WINDOW (f); |
74112613 | 6650 | XSETBUFFER (data->current_buffer, current_buffer); |
3f49fddc | 6651 | data->minibuf_scroll_window = minibuf_level > 0 ? Vminibuf_scroll_window : Qnil; |
3dbab091 | 6652 | data->minibuf_selected_window = minibuf_level > 0 ? minibuf_selected_window : Qnil; |
44fa5b1e | 6653 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 6654 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
25721f5b | 6655 | tem = make_uninit_vector (n_windows); |
7ab12479 JB |
6656 | data->saved_windows = tem; |
6657 | for (i = 0; i < n_windows; i++) | |
28be1ada | 6658 | ASET (tem, i, |
25721f5b | 6659 | Fmake_vector (make_number (VECSIZE (struct saved_window)), Qnil)); |
a1d58e5b | 6660 | save_window_save (FRAME_ROOT_WINDOW (f), XVECTOR (tem), 0); |
74112613 | 6661 | XSETWINDOW_CONFIGURATION (tem, data); |
7ab12479 JB |
6662 | return (tem); |
6663 | } | |
25554267 DA |
6664 | |
6665 | /* Called after W's margins, fringes or scroll bars was adjusted. */ | |
6666 | ||
6667 | static void | |
6668 | apply_window_adjustment (struct window *w) | |
6669 | { | |
6670 | eassert (w); | |
6671 | adjust_window_margins (w); | |
6672 | clear_glyph_matrix (w->current_matrix); | |
6673 | w->window_end_valid = 0; | |
44c5e192 | 6674 | windows_or_buffers_changed = 30; |
5961ad6c | 6675 | wset_redisplay (w); |
bd0443bb | 6676 | adjust_frame_glyphs (XFRAME (WINDOW_FRAME (w))); |
25554267 DA |
6677 | } |
6678 | ||
5500c422 GM |
6679 | \f |
6680 | /*********************************************************************** | |
6681 | Marginal Areas | |
6682 | ***********************************************************************/ | |
6683 | ||
25554267 DA |
6684 | static struct window * |
6685 | set_window_margins (struct window *w, Lisp_Object left_width, | |
6686 | Lisp_Object right_width) | |
5500c422 | 6687 | { |
eeaf9bf3 | 6688 | int left, right; |
5500c422 | 6689 | |
eeaf9bf3 | 6690 | /* FIXME: what about margins that are too wide? */ |
eeaf9bf3 DA |
6691 | left = (NILP (left_width) ? 0 |
6692 | : (CHECK_NATNUM (left_width), XINT (left_width))); | |
6693 | right = (NILP (right_width) ? 0 | |
6694 | : (CHECK_NATNUM (right_width), XINT (right_width))); | |
5500c422 | 6695 | |
eeaf9bf3 | 6696 | if (w->left_margin_cols != left || w->right_margin_cols != right) |
6b61353c | 6697 | { |
eeaf9bf3 DA |
6698 | w->left_margin_cols = left; |
6699 | w->right_margin_cols = right; | |
25554267 DA |
6700 | return w; |
6701 | } | |
6702 | return NULL; | |
6703 | } | |
949cf20f | 6704 | |
25554267 DA |
6705 | DEFUN ("set-window-margins", Fset_window_margins, Sset_window_margins, |
6706 | 2, 3, 0, | |
6707 | doc: /* Set width of marginal areas of window WINDOW. | |
6708 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6709 | |
25554267 DA |
6710 | Second arg LEFT-WIDTH specifies the number of character cells to |
6711 | reserve for the left marginal area. Optional third arg RIGHT-WIDTH | |
6712 | does the same for the right marginal area. A nil width parameter | |
6713 | means no margin. | |
5500c422 | 6714 | |
25554267 DA |
6715 | Return t if any margin was actually changed and nil otherwise. */) |
6716 | (Lisp_Object window, Lisp_Object left_width, Lisp_Object right_width) | |
6717 | { | |
6718 | struct window *w = set_window_margins (decode_live_window (window), | |
6719 | left_width, right_width); | |
6720 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
5500c422 GM |
6721 | } |
6722 | ||
6723 | ||
6724 | DEFUN ("window-margins", Fwindow_margins, Swindow_margins, | |
6725 | 0, 1, 0, | |
fdb82f93 | 6726 | doc: /* Get width of marginal areas of window WINDOW. |
52162052 MR |
6727 | WINDOW must be a live window and defaults to the selected one. |
6728 | ||
fdb82f93 PJ |
6729 | Value is a cons of the form (LEFT-WIDTH . RIGHT-WIDTH). |
6730 | If a marginal area does not exist, its width will be returned | |
6731 | as nil. */) | |
5842a27b | 6732 | (Lisp_Object window) |
5500c422 | 6733 | { |
52162052 | 6734 | struct window *w = decode_live_window (window); |
880e6158 MR |
6735 | return Fcons (w->left_margin_cols |
6736 | ? make_number (w->left_margin_cols) : Qnil, | |
6737 | w->right_margin_cols | |
6738 | ? make_number (w->right_margin_cols) : Qnil); | |
949cf20f KS |
6739 | } |
6740 | ||
6741 | ||
6742 | \f | |
6743 | /*********************************************************************** | |
6744 | Fringes | |
6745 | ***********************************************************************/ | |
6746 | ||
25554267 DA |
6747 | static struct window * |
6748 | set_window_fringes (struct window *w, Lisp_Object left_width, | |
6749 | Lisp_Object right_width, Lisp_Object outside_margins) | |
949cf20f | 6750 | { |
9e37ee3b | 6751 | int left, right, outside = !NILP (outside_margins); |
949cf20f | 6752 | |
9e37ee3b DA |
6753 | left = (NILP (left_width) ? -1 |
6754 | : (CHECK_NATNUM (left_width), XINT (left_width))); | |
6755 | right = (NILP (right_width) ? -1 | |
6756 | : (CHECK_NATNUM (right_width), XINT (right_width))); | |
5a857365 | 6757 | |
9e37ee3b | 6758 | /* Do nothing on a tty or if nothing to actually change. */ |
d46c6df5 | 6759 | if (FRAME_WINDOW_P (WINDOW_XFRAME (w)) |
9e37ee3b DA |
6760 | && (w->left_fringe_width != left |
6761 | || w->right_fringe_width != right | |
2af3565e | 6762 | || w->fringes_outside_margins != outside)) |
949cf20f | 6763 | { |
9e37ee3b DA |
6764 | w->left_fringe_width = left; |
6765 | w->right_fringe_width = right; | |
2af3565e | 6766 | w->fringes_outside_margins = outside; |
25554267 DA |
6767 | return w; |
6768 | } | |
6769 | return NULL; | |
6770 | } | |
949cf20f | 6771 | |
25554267 DA |
6772 | DEFUN ("set-window-fringes", Fset_window_fringes, Sset_window_fringes, |
6773 | 2, 4, 0, | |
6774 | doc: /* Set the fringe widths of window WINDOW. | |
6775 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6776 | |
25554267 DA |
6777 | Second arg LEFT-WIDTH specifies the number of pixels to reserve for |
6778 | the left fringe. Optional third arg RIGHT-WIDTH specifies the right | |
6779 | fringe width. If a fringe width arg is nil, that means to use the | |
6780 | frame's default fringe width. Default fringe widths can be set with | |
6781 | the command `set-fringe-style'. | |
6782 | If optional fourth arg OUTSIDE-MARGINS is non-nil, draw the fringes | |
6783 | outside of the display margins. By default, fringes are drawn between | |
6784 | display marginal areas and the text area. | |
949cf20f | 6785 | |
25554267 DA |
6786 | Return t if any fringe was actually changed and nil otherwise. */) |
6787 | (Lisp_Object window, Lisp_Object left_width, | |
6788 | Lisp_Object right_width, Lisp_Object outside_margins) | |
6789 | { | |
6790 | struct window *w | |
6791 | = set_window_fringes (decode_live_window (window), | |
6792 | left_width, right_width, outside_margins); | |
6793 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
949cf20f KS |
6794 | } |
6795 | ||
6796 | ||
6797 | DEFUN ("window-fringes", Fwindow_fringes, Swindow_fringes, | |
6798 | 0, 1, 0, | |
6799 | doc: /* Get width of fringes of window WINDOW. | |
52162052 MR |
6800 | WINDOW must be a live window and defaults to the selected one. |
6801 | ||
6b61353c | 6802 | Value is a list of the form (LEFT-WIDTH RIGHT-WIDTH OUTSIDE-MARGINS). */) |
5842a27b | 6803 | (Lisp_Object window) |
949cf20f | 6804 | { |
52162052 | 6805 | struct window *w = decode_live_window (window); |
d46c6df5 | 6806 | |
89bc0592 DA |
6807 | return list3 (make_number (WINDOW_LEFT_FRINGE_WIDTH (w)), |
6808 | make_number (WINDOW_RIGHT_FRINGE_WIDTH (w)), | |
6809 | WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) ? Qt : Qnil); | |
949cf20f KS |
6810 | } |
6811 | ||
6812 | ||
6813 | \f | |
6814 | /*********************************************************************** | |
6815 | Scroll bars | |
6816 | ***********************************************************************/ | |
6817 | ||
25554267 DA |
6818 | static struct window * |
6819 | set_window_scroll_bars (struct window *w, Lisp_Object width, | |
6820 | Lisp_Object vertical_type, Lisp_Object horizontal_type) | |
949cf20f | 6821 | { |
38a2c910 | 6822 | int iwidth = (NILP (width) ? -1 : (CHECK_NATNUM (width), XINT (width))); |
949cf20f | 6823 | |
38a2c910 DA |
6824 | if (iwidth == 0) |
6825 | vertical_type = Qnil; | |
949cf20f | 6826 | |
413a79ad | 6827 | if (!(NILP (vertical_type) |
0cc1039f | 6828 | || EQ (vertical_type, Qleft) |
6b61353c KH |
6829 | || EQ (vertical_type, Qright) |
6830 | || EQ (vertical_type, Qt))) | |
6831 | error ("Invalid type of vertical scroll bar"); | |
6832 | ||
38a2c910 | 6833 | if (w->scroll_bar_width != iwidth |
d3d50620 | 6834 | || !EQ (w->vertical_scroll_bar_type, vertical_type)) |
949cf20f | 6835 | { |
38a2c910 | 6836 | w->scroll_bar_width = iwidth; |
e8c17b81 | 6837 | wset_vertical_scroll_bar_type (w, vertical_type); |
25554267 DA |
6838 | return w; |
6839 | } | |
6840 | return NULL; | |
6841 | } | |
949cf20f | 6842 | |
25554267 DA |
6843 | DEFUN ("set-window-scroll-bars", Fset_window_scroll_bars, |
6844 | Sset_window_scroll_bars, 2, 4, 0, | |
6845 | doc: /* Set width and type of scroll bars of window WINDOW. | |
6846 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6847 | |
880e6158 | 6848 | Second parameter WIDTH specifies the pixel width for the scroll bar. |
25554267 DA |
6849 | Third parameter VERTICAL-TYPE specifies the type of the vertical scroll |
6850 | bar: left, right, or nil. | |
6851 | If WIDTH is nil, use the frame's scroll-bar width. | |
6852 | If VERTICAL-TYPE is t, use the frame's scroll-bar type. | |
6853 | Fourth parameter HORIZONTAL-TYPE is currently unused. | |
949cf20f | 6854 | |
880e6158 | 6855 | Return t if scroll bars were actually changed and nil otherwise. */) |
25554267 DA |
6856 | (Lisp_Object window, Lisp_Object width, |
6857 | Lisp_Object vertical_type, Lisp_Object horizontal_type) | |
6858 | { | |
6859 | struct window *w | |
6860 | = set_window_scroll_bars (decode_live_window (window), | |
6861 | width, vertical_type, horizontal_type); | |
6862 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
949cf20f KS |
6863 | } |
6864 | ||
6865 | ||
6866 | DEFUN ("window-scroll-bars", Fwindow_scroll_bars, Swindow_scroll_bars, | |
6867 | 0, 1, 0, | |
6868 | doc: /* Get width and type of scroll bars of window WINDOW. | |
52162052 MR |
6869 | WINDOW must be a live window and defaults to the selected one. |
6870 | ||
6b61353c KH |
6871 | Value is a list of the form (WIDTH COLS VERTICAL-TYPE HORIZONTAL-TYPE). |
6872 | If WIDTH is nil or TYPE is t, the window is using the frame's corresponding | |
6873 | value. */) | |
5842a27b | 6874 | (Lisp_Object window) |
949cf20f | 6875 | { |
52162052 | 6876 | struct window *w = decode_live_window (window); |
89bc0592 | 6877 | |
44c5e192 | 6878 | return list4 (make_number (WINDOW_SCROLL_BAR_AREA_WIDTH (w)), |
89bc0592 DA |
6879 | make_number (WINDOW_SCROLL_BAR_COLS (w)), |
6880 | w->vertical_scroll_bar_type, Qnil); | |
5500c422 GM |
6881 | } |
6882 | ||
6883 | ||
7ab12479 | 6884 | \f |
5500c422 GM |
6885 | /*********************************************************************** |
6886 | Smooth scrolling | |
6887 | ***********************************************************************/ | |
6888 | ||
0cc1039f | 6889 | DEFUN ("window-vscroll", Fwindow_vscroll, Swindow_vscroll, 0, 2, 0, |
fdb82f93 | 6890 | doc: /* Return the amount by which WINDOW is scrolled vertically. |
49745b39 | 6891 | If WINDOW is omitted or nil, it defaults to the selected window. |
0cc1039f | 6892 | Normally, value is a multiple of the canonical character height of WINDOW; |
8cd0d661 | 6893 | optional second arg PIXELS-P means value is measured in pixels. */) |
5842a27b | 6894 | (Lisp_Object window, Lisp_Object pixels_p) |
5500c422 | 6895 | { |
47004952 | 6896 | Lisp_Object result; |
1f76f6f5 MR |
6897 | struct window *w = decode_live_window (window); |
6898 | struct frame *f = XFRAME (w->frame); | |
177c0ea7 | 6899 | |
5500c422 | 6900 | if (FRAME_WINDOW_P (f)) |
0cc1039f KS |
6901 | result = (NILP (pixels_p) |
6902 | ? FRAME_CANON_Y_FROM_PIXEL_Y (f, -w->vscroll) | |
6903 | : make_number (-w->vscroll)); | |
5500c422 | 6904 | else |
47004952 GM |
6905 | result = make_number (0); |
6906 | return result; | |
5500c422 GM |
6907 | } |
6908 | ||
6909 | ||
6910 | DEFUN ("set-window-vscroll", Fset_window_vscroll, Sset_window_vscroll, | |
0cc1039f | 6911 | 2, 3, 0, |
fdb82f93 | 6912 | doc: /* Set amount by which WINDOW should be scrolled vertically to VSCROLL. |
0cc1039f KS |
6913 | WINDOW nil means use the selected window. Normally, VSCROLL is a |
6914 | non-negative multiple of the canonical character height of WINDOW; | |
8cd0d661 | 6915 | optional third arg PIXELS-P non-nil means that VSCROLL is in pixels. |
a0a37a6f LT |
6916 | If PIXELS-P is nil, VSCROLL may have to be rounded so that it |
6917 | corresponds to an integral number of pixels. The return value is the | |
6918 | result of this rounding. | |
6919 | If PIXELS-P is non-nil, the return value is VSCROLL. */) | |
5842a27b | 6920 | (Lisp_Object window, Lisp_Object vscroll, Lisp_Object pixels_p) |
5500c422 | 6921 | { |
1f76f6f5 MR |
6922 | struct window *w = decode_live_window (window); |
6923 | struct frame *f = XFRAME (w->frame); | |
177c0ea7 | 6924 | |
b7826503 | 6925 | CHECK_NUMBER_OR_FLOAT (vscroll); |
177c0ea7 | 6926 | |
5500c422 GM |
6927 | if (FRAME_WINDOW_P (f)) |
6928 | { | |
6929 | int old_dy = w->vscroll; | |
177c0ea7 | 6930 | |
0cc1039f KS |
6931 | w->vscroll = - (NILP (pixels_p) |
6932 | ? FRAME_LINE_HEIGHT (f) * XFLOATINT (vscroll) | |
6933 | : XFLOATINT (vscroll)); | |
47004952 | 6934 | w->vscroll = min (w->vscroll, 0); |
5500c422 | 6935 | |
e56263e5 KS |
6936 | if (w->vscroll != old_dy) |
6937 | { | |
6938 | /* Adjust glyph matrix of the frame if the virtual display | |
6939 | area becomes larger than before. */ | |
6940 | if (w->vscroll < 0 && w->vscroll < old_dy) | |
bd0443bb | 6941 | adjust_frame_glyphs (f); |
177c0ea7 | 6942 | |
e56263e5 | 6943 | /* Prevent redisplay shortcuts. */ |
e74aeda8 | 6944 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
e56263e5 | 6945 | } |
5500c422 | 6946 | } |
177c0ea7 | 6947 | |
0cc1039f | 6948 | return Fwindow_vscroll (window, pixels_p); |
5500c422 | 6949 | } |
177c0ea7 | 6950 | |
7bbb5782 GM |
6951 | \f |
6952 | /* Call FN for all leaf windows on frame F. FN is called with the | |
6953 | first argument being a pointer to the leaf window, and with | |
f95464e4 | 6954 | additional argument USER_DATA. Stops when FN returns 0. */ |
7bbb5782 | 6955 | |
2f7c71a1 AS |
6956 | static void |
6957 | foreach_window (struct frame *f, int (*fn) (struct window *, void *), | |
6958 | void *user_data) | |
7bbb5782 | 6959 | { |
56f2de10 | 6960 | /* delete_frame may set FRAME_ROOT_WINDOW (f) to Qnil. */ |
76fb556f YM |
6961 | if (WINDOWP (FRAME_ROOT_WINDOW (f))) |
6962 | foreach_window_1 (XWINDOW (FRAME_ROOT_WINDOW (f)), fn, user_data); | |
7bbb5782 GM |
6963 | } |
6964 | ||
6965 | ||
6966 | /* Helper function for foreach_window. Call FN for all leaf windows | |
6967 | reachable from W. FN is called with the first argument being a | |
f95464e4 | 6968 | pointer to the leaf window, and with additional argument USER_DATA. |
67492200 | 6969 | Stop when FN returns 0. Value is 0 if stopped by FN. */ |
7bbb5782 | 6970 | |
67492200 | 6971 | static int |
971de7fb | 6972 | foreach_window_1 (struct window *w, int (*fn) (struct window *, void *), void *user_data) |
7bbb5782 | 6973 | { |
67492200 | 6974 | int cont; |
177c0ea7 | 6975 | |
67492200 | 6976 | for (cont = 1; w && cont;) |
7bbb5782 | 6977 | { |
e74aeda8 DA |
6978 | if (WINDOWP (w->contents)) |
6979 | cont = foreach_window_1 (XWINDOW (w->contents), fn, user_data); | |
177c0ea7 | 6980 | else |
0f532a9a | 6981 | cont = fn (w, user_data); |
177c0ea7 | 6982 | |
d3d50620 | 6983 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
7bbb5782 | 6984 | } |
67492200 GM |
6985 | |
6986 | return cont; | |
7bbb5782 GM |
6987 | } |
6988 | ||
5500c422 GM |
6989 | /*********************************************************************** |
6990 | Initialization | |
6991 | ***********************************************************************/ | |
6992 | ||
6198ccd0 MR |
6993 | /* Return 1 if window configurations CONFIGURATION1 and CONFIGURATION2 |
6994 | describe the same state of affairs. This is used by Fequal. | |
6995 | ||
f75d7a91 | 6996 | IGNORE_POSITIONS means ignore non-matching scroll positions |
6198ccd0 MR |
6997 | and the like. |
6998 | ||
e4769531 | 6999 | This ignores a couple of things like the dedication status of |
b6f67890 MR |
7000 | window, combination_limit and the like. This might have to be |
7001 | fixed. */ | |
cbff28e8 | 7002 | |
f75d7a91 PE |
7003 | bool |
7004 | compare_window_configurations (Lisp_Object configuration1, | |
7005 | Lisp_Object configuration2, | |
7006 | bool ignore_positions) | |
cbff28e8 RS |
7007 | { |
7008 | register struct save_window_data *d1, *d2; | |
6198ccd0 | 7009 | struct Lisp_Vector *sws1, *sws2; |
71f02bc5 | 7010 | ptrdiff_t i; |
cbff28e8 | 7011 | |
6198ccd0 MR |
7012 | CHECK_WINDOW_CONFIGURATION (configuration1); |
7013 | CHECK_WINDOW_CONFIGURATION (configuration2); | |
7014 | ||
7015 | d1 = (struct save_window_data *) XVECTOR (configuration1); | |
7016 | d2 = (struct save_window_data *) XVECTOR (configuration2); | |
7017 | sws1 = XVECTOR (d1->saved_windows); | |
7018 | sws2 = XVECTOR (d2->saved_windows); | |
7019 | ||
7020 | /* Frame settings must match. */ | |
7021 | if (d1->frame_cols != d2->frame_cols | |
7022 | || d1->frame_lines != d2->frame_lines | |
7023 | || d1->frame_menu_bar_lines != d2->frame_menu_bar_lines | |
7024 | || !EQ (d1->selected_frame, d2->selected_frame) | |
7025 | || !EQ (d1->current_buffer, d2->current_buffer) | |
7026 | || (!ignore_positions | |
7027 | && (!EQ (d1->minibuf_scroll_window, d2->minibuf_scroll_window) | |
7028 | || !EQ (d1->minibuf_selected_window, d2->minibuf_selected_window))) | |
7029 | || !EQ (d1->focus_frame, d2->focus_frame) | |
7030 | /* Verify that the two configurations have the same number of windows. */ | |
7031 | || sws1->header.size != sws2->header.size) | |
cbff28e8 | 7032 | return 0; |
cbff28e8 | 7033 | |
6198ccd0 | 7034 | for (i = 0; i < sws1->header.size; i++) |
cbff28e8 | 7035 | { |
6198ccd0 | 7036 | struct saved_window *sw1, *sw2; |
cbff28e8 | 7037 | |
6198ccd0 MR |
7038 | sw1 = SAVED_WINDOW_N (sws1, i); |
7039 | sw2 = SAVED_WINDOW_N (sws2, i); | |
7040 | ||
7041 | if ( | |
7042 | /* The "current" windows in the two configurations must | |
7043 | correspond to each other. */ | |
7044 | EQ (d1->current_window, sw1->window) | |
7045 | != EQ (d2->current_window, sw2->window) | |
7046 | /* Windows' buffers must match. */ | |
7047 | || !EQ (sw1->buffer, sw2->buffer) | |
880e6158 MR |
7048 | || !EQ (sw1->pixel_left, sw2->pixel_left) |
7049 | || !EQ (sw1->pixel_top, sw2->pixel_top) | |
7050 | || !EQ (sw1->pixel_height, sw2->pixel_height) | |
7051 | || !EQ (sw1->pixel_width, sw2->pixel_width) | |
6198ccd0 MR |
7052 | || !EQ (sw1->left_col, sw2->left_col) |
7053 | || !EQ (sw1->top_line, sw2->top_line) | |
7054 | || !EQ (sw1->total_cols, sw2->total_cols) | |
7055 | || !EQ (sw1->total_lines, sw2->total_lines) | |
7056 | || !EQ (sw1->display_table, sw2->display_table) | |
7057 | /* The next two disjuncts check the window structure for | |
7058 | equality. */ | |
7059 | || !EQ (sw1->parent, sw2->parent) | |
7060 | || !EQ (sw1->prev, sw2->prev) | |
7061 | || (!ignore_positions | |
7062 | && (!EQ (sw1->hscroll, sw2->hscroll) | |
7063 | || !EQ (sw1->min_hscroll, sw2->min_hscroll) | |
7064 | || !EQ (sw1->start_at_line_beg, sw2->start_at_line_beg) | |
7065 | || NILP (Fequal (sw1->start, sw2->start)) | |
7066 | || NILP (Fequal (sw1->pointm, sw2->pointm)) | |
7067 | || NILP (Fequal (sw1->mark, sw2->mark)))) | |
7068 | || !EQ (sw1->left_margin_cols, sw2->left_margin_cols) | |
7069 | || !EQ (sw1->right_margin_cols, sw2->right_margin_cols) | |
7070 | || !EQ (sw1->left_fringe_width, sw2->left_fringe_width) | |
7071 | || !EQ (sw1->right_fringe_width, sw2->right_fringe_width) | |
7072 | || !EQ (sw1->fringes_outside_margins, sw2->fringes_outside_margins) | |
7073 | || !EQ (sw1->scroll_bar_width, sw2->scroll_bar_width) | |
7074 | || !EQ (sw1->vertical_scroll_bar_type, sw2->vertical_scroll_bar_type)) | |
949cf20f | 7075 | return 0; |
cbff28e8 RS |
7076 | } |
7077 | ||
7078 | return 1; | |
7079 | } | |
2f8274be RS |
7080 | |
7081 | DEFUN ("compare-window-configurations", Fcompare_window_configurations, | |
7082 | Scompare_window_configurations, 2, 2, 0, | |
fdb82f93 PJ |
7083 | doc: /* Compare two window configurations as regards the structure of windows. |
7084 | This function ignores details such as the values of point and mark | |
7085 | and scrolling positions. */) | |
5842a27b | 7086 | (Lisp_Object x, Lisp_Object y) |
2f8274be RS |
7087 | { |
7088 | if (compare_window_configurations (x, y, 1)) | |
7089 | return Qt; | |
7090 | return Qnil; | |
7091 | } | |
cbff28e8 | 7092 | \f |
dfcf069d | 7093 | void |
971de7fb | 7094 | init_window_once (void) |
7ab12479 | 7095 | { |
3224dac1 | 7096 | struct frame *f = make_initial_frame (); |
1ae1a37d GM |
7097 | XSETFRAME (selected_frame, f); |
7098 | Vterminal_frame = selected_frame; | |
e69b0960 DA |
7099 | minibuf_window = f->minibuffer_window; |
7100 | selected_window = f->selected_window; | |
5b03d3c0 RS |
7101 | |
7102 | window_initialized = 1; | |
7ab12479 JB |
7103 | } |
7104 | ||
67492200 | 7105 | void |
971de7fb | 7106 | init_window (void) |
67492200 GM |
7107 | { |
7108 | Vwindow_list = Qnil; | |
7109 | } | |
7110 | ||
dfcf069d | 7111 | void |
971de7fb | 7112 | syms_of_window (void) |
7ab12479 | 7113 | { |
cd3520a4 JB |
7114 | DEFSYM (Qscroll_up, "scroll-up"); |
7115 | DEFSYM (Qscroll_down, "scroll-down"); | |
7116 | DEFSYM (Qscroll_command, "scroll-command"); | |
a4b000fb JL |
7117 | |
7118 | Fput (Qscroll_up, Qscroll_command, Qt); | |
7119 | Fput (Qscroll_down, Qscroll_command, Qt); | |
7120 | ||
cd3520a4 JB |
7121 | DEFSYM (Qwindow_configuration_change_hook, "window-configuration-change-hook"); |
7122 | DEFSYM (Qwindowp, "windowp"); | |
7123 | DEFSYM (Qwindow_configuration_p, "window-configuration-p"); | |
7124 | DEFSYM (Qwindow_live_p, "window-live-p"); | |
52162052 | 7125 | DEFSYM (Qwindow_valid_p, "window-valid-p"); |
cd3520a4 JB |
7126 | DEFSYM (Qwindow_deletable_p, "window-deletable-p"); |
7127 | DEFSYM (Qdelete_window, "delete-window"); | |
5386012d MR |
7128 | DEFSYM (Qwindow_resize_root_window, "window--resize-root-window"); |
7129 | DEFSYM (Qwindow_resize_root_window_vertically, "window--resize-root-window-vertically"); | |
880e6158 | 7130 | DEFSYM (Qwindow_pixel_to_total, "window--pixel-to-total"); |
cd3520a4 JB |
7131 | DEFSYM (Qsafe, "safe"); |
7132 | DEFSYM (Qdisplay_buffer, "display-buffer"); | |
7133 | DEFSYM (Qreplace_buffer_in_windows, "replace-buffer-in-windows"); | |
7134 | DEFSYM (Qrecord_window_buffer, "record-window-buffer"); | |
7135 | DEFSYM (Qget_mru_window, "get-mru-window"); | |
5938d519 | 7136 | DEFSYM (Qwindow_size, "window-size"); |
cd3520a4 JB |
7137 | DEFSYM (Qtemp_buffer_show_hook, "temp-buffer-show-hook"); |
7138 | DEFSYM (Qabove, "above"); | |
7139 | DEFSYM (Qbelow, "below"); | |
6a6ee00d | 7140 | DEFSYM (Qclone_of, "clone-of"); |
6cb4da45 MR |
7141 | DEFSYM (Qfloor, "floor"); |
7142 | DEFSYM (Qceiling, "ceiling"); | |
b9e809c2 | 7143 | |
67492200 | 7144 | staticpro (&Vwindow_list); |
8bfb170b KS |
7145 | |
7146 | minibuf_selected_window = Qnil; | |
3dbab091 | 7147 | staticpro (&minibuf_selected_window); |
67492200 | 7148 | |
c876b227 | 7149 | window_scroll_pixel_based_preserve_x = -1; |
66fe93d1 | 7150 | window_scroll_pixel_based_preserve_y = -1; |
c876b227 SM |
7151 | window_scroll_preserve_hpos = -1; |
7152 | window_scroll_preserve_vpos = -1; | |
66d43aea | 7153 | |
29208e82 | 7154 | DEFVAR_LISP ("temp-buffer-show-function", Vtemp_buffer_show_function, |
fdb82f93 PJ |
7155 | doc: /* Non-nil means call as function to display a help buffer. |
7156 | The function is called with one argument, the buffer to be displayed. | |
7157 | Used by `with-output-to-temp-buffer'. | |
7158 | If this function is used, then it must do the entire job of showing | |
7159 | the buffer; `temp-buffer-show-hook' is not run unless this function runs it. */); | |
7ab12479 | 7160 | Vtemp_buffer_show_function = Qnil; |
e10ac9f1 | 7161 | |
29208e82 | 7162 | DEFVAR_LISP ("minibuffer-scroll-window", Vminibuf_scroll_window, |
fdb82f93 | 7163 | doc: /* Non-nil means it is the window that C-M-v in minibuffer should scroll. */); |
7ab12479 JB |
7164 | Vminibuf_scroll_window = Qnil; |
7165 | ||
29208e82 | 7166 | DEFVAR_BOOL ("mode-line-in-non-selected-windows", mode_line_in_non_selected_windows, |
26124d5e | 7167 | doc: /* Non-nil means to use `mode-line-inactive' face in non-selected windows. |
cc91894c KS |
7168 | If the minibuffer is active, the `minibuffer-scroll-window' mode line |
7169 | is displayed in the `mode-line' face. */); | |
7170 | mode_line_in_non_selected_windows = 1; | |
26124d5e | 7171 | |
29208e82 | 7172 | DEFVAR_LISP ("other-window-scroll-buffer", Vother_window_scroll_buffer, |
fdb82f93 | 7173 | doc: /* If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. */); |
7ab12479 JB |
7174 | Vother_window_scroll_buffer = Qnil; |
7175 | ||
29208e82 | 7176 | DEFVAR_BOOL ("auto-window-vscroll", auto_window_vscroll_p, |
e10ac9f1 | 7177 | doc: /* Non-nil means to automatically adjust `window-vscroll' to view tall lines. */); |
e56263e5 KS |
7178 | auto_window_vscroll_p = 1; |
7179 | ||
29208e82 | 7180 | DEFVAR_INT ("next-screen-context-lines", next_screen_context_lines, |
e10ac9f1 | 7181 | doc: /* Number of lines of continuity when scrolling by screenfuls. */); |
7ab12479 JB |
7182 | next_screen_context_lines = 2; |
7183 | ||
5500c422 | 7184 | DEFVAR_LISP ("scroll-preserve-screen-position", |
29208e82 | 7185 | Vscroll_preserve_screen_position, |
e10ac9f1 | 7186 | doc: /* Controls if scroll commands move point to keep its screen position unchanged. |
bdf4ec93 RS |
7187 | A value of nil means point does not keep its screen position except |
7188 | at the scroll margin or window boundary respectively. | |
7189 | A value of t means point keeps its screen position if the scroll | |
7190 | command moved it vertically out of the window, e.g. when scrolling | |
7191 | by full screens. | |
9013a7f8 | 7192 | Any other value means point always keeps its screen position. |
a4b000fb JL |
7193 | Scroll commands should have the `scroll-command' property |
7194 | on their symbols to be controlled by this variable. */); | |
5500c422 | 7195 | Vscroll_preserve_screen_position = Qnil; |
9317a85d | 7196 | |
29208e82 | 7197 | DEFVAR_LISP ("window-point-insertion-type", Vwindow_point_insertion_type, |
a1562258 SM |
7198 | doc: /* Type of marker to use for `window-point'. */); |
7199 | Vwindow_point_insertion_type = Qnil; | |
7200 | ||
543f5fb1 | 7201 | DEFVAR_LISP ("window-configuration-change-hook", |
29208e82 | 7202 | Vwindow_configuration_change_hook, |
fdb82f93 | 7203 | doc: /* Functions to call when window configuration changes. |
6a44ffb3 SM |
7204 | The buffer-local part is run once per window, with the relevant window |
7205 | selected; while the global part is run only once for the modified frame, | |
7206 | with the relevant frame selected. */); | |
543f5fb1 RS |
7207 | Vwindow_configuration_change_hook = Qnil; |
7208 | ||
29208e82 | 7209 | DEFVAR_LISP ("recenter-redisplay", Vrecenter_redisplay, |
61d4b438 MR |
7210 | doc: /* Non-nil means `recenter' redraws entire frame. |
7211 | If this option is non-nil, then the `recenter' command with a nil | |
7212 | argument will redraw the entire frame; the special value `tty' causes | |
7213 | the frame to be redrawn only if it is a tty frame. */); | |
666e158e MB |
7214 | Vrecenter_redisplay = Qtty; |
7215 | ||
a0c2d0ae | 7216 | DEFVAR_LISP ("window-combination-resize", Vwindow_combination_resize, |
454592a6 | 7217 | doc: /* If t, resize window combinations proportionally. |
1a13852e | 7218 | If this variable is nil, splitting a window gets the entire screen space |
a0c2d0ae | 7219 | for displaying the new window from the window to split. Deleting and |
df85d315 | 7220 | resizing a window preferably resizes one adjacent window only. |
a0c2d0ae | 7221 | |
454592a6 | 7222 | If this variable is t, splitting a window tries to get the space |
a0c2d0ae MR |
7223 | proportionally from all windows in the same combination. This also |
7224 | allows to split a window that is otherwise too small or of fixed size. | |
7225 | Resizing and deleting a window proportionally resize all windows in the | |
7226 | same combination. | |
1a13852e | 7227 | |
454592a6 MR |
7228 | Other values are reserved for future use. |
7229 | ||
9fc9a531 AH |
7230 | This variable takes no effect if the variable `window-combination-limit' is |
7231 | non-nil. */); | |
a0c2d0ae | 7232 | Vwindow_combination_resize = Qnil; |
1a13852e | 7233 | |
b6f67890 | 7234 | DEFVAR_LISP ("window-combination-limit", Vwindow_combination_limit, |
8e17c9ba MR |
7235 | doc: /* If non-nil, splitting a window makes a new parent window. |
7236 | The following values are recognized: | |
1a13852e | 7237 | |
8e17c9ba | 7238 | nil means splitting a window will create a new parent window only if the |
5938d519 MR |
7239 | window has no parent window or the window shall become part of a |
7240 | combination orthogonal to the one it is part of. | |
1a13852e | 7241 | |
5938d519 MR |
7242 | `window-size' means that splitting a window for displaying a buffer |
7243 | makes a new parent window provided `display-buffer' is supposed to | |
7244 | explicitly set the window's size due to the presence of a | |
7245 | `window-height' or `window-width' entry in the alist used by | |
7246 | `display-buffer'. Otherwise, this value is handled like nil. | |
8e17c9ba MR |
7247 | |
7248 | `temp-buffer' means that splitting a window for displaying a temporary | |
7249 | buffer always makes a new parent window. Otherwise, this value is | |
7250 | handled like nil. | |
7251 | ||
8e17c9ba MR |
7252 | `display-buffer' means that splitting a window for displaying a buffer |
7253 | always makes a new parent window. Since temporary buffers are | |
7254 | displayed by the function `display-buffer', this value is stronger | |
7255 | than `temp-buffer'. Splitting a window for other purpose makes a | |
7256 | new parent window only if needed. | |
7257 | ||
7258 | t means that splitting a window always creates a new parent window. If | |
7259 | all splits behave this way, each frame's window tree is a binary | |
7260 | tree and every window but the frame's root window has exactly one | |
7261 | sibling. | |
1a13852e | 7262 | |
8e17c9ba | 7263 | Other values are reserved for future use. */); |
5938d519 | 7264 | Vwindow_combination_limit = Qwindow_size; |
666e158e | 7265 | |
6a6ee00d MR |
7266 | DEFVAR_LISP ("window-persistent-parameters", Vwindow_persistent_parameters, |
7267 | doc: /* Alist of persistent window parameters. | |
34a02f46 MR |
7268 | This alist specifies which window parameters shall get saved by |
7269 | `current-window-configuration' and `window-state-get' and subsequently | |
7270 | restored to their previous values by `set-window-configuration' and | |
7271 | `window-state-put'. | |
6a6ee00d MR |
7272 | |
7273 | The car of each entry of this alist is the symbol specifying the | |
7274 | parameter. The cdr is one of the following: | |
7275 | ||
34a02f46 MR |
7276 | nil means the parameter is neither saved by `window-state-get' nor by |
7277 | `current-window-configuration'. | |
6a6ee00d | 7278 | |
34a02f46 MR |
7279 | t means the parameter is saved by `current-window-configuration' and, |
7280 | provided its WRITABLE argument is nil, by `window-state-get'. | |
6a6ee00d | 7281 | |
34a02f46 MR |
7282 | The symbol `writable' means the parameter is saved unconditionally by |
7283 | both `current-window-configuration' and `window-state-get'. Do not use | |
7284 | this value for parameters without read syntax (like windows or frames). | |
6a6ee00d MR |
7285 | |
7286 | Parameters not saved by `current-window-configuration' or | |
7287 | `window-state-get' are left alone by `set-window-configuration' | |
7288 | respectively are not installed by `window-state-put'. */); | |
34a02f46 | 7289 | Vwindow_persistent_parameters = list1 (Fcons (Qclone_of, Qt)); |
6a6ee00d | 7290 | |
880e6158 MR |
7291 | DEFVAR_BOOL ("window-resize-pixelwise", window_resize_pixelwise, |
7292 | doc: /* Non-nil means resizing windows works pixelwise. | |
7293 | Functions currently affected by this option are `split-window', | |
7294 | `maximize-window', `minimize-window', `fit-window-to-buffer' and | |
7295 | `fit-frame-to-buffer' and all functions symmetrically resizing a | |
7296 | parent window. | |
7297 | ||
7298 | Note that when a frame's pixel size is not a multiple of the | |
7299 | frame's character size, at least one window may get resized | |
7300 | pixelwise even if this option is nil. */); | |
7301 | window_resize_pixelwise = 0; | |
7302 | ||
7ab12479 JB |
7303 | defsubr (&Sselected_window); |
7304 | defsubr (&Sminibuffer_window); | |
7305 | defsubr (&Swindow_minibuffer_p); | |
7306 | defsubr (&Swindowp); | |
52162052 | 7307 | defsubr (&Swindow_valid_p); |
806b4d9b | 7308 | defsubr (&Swindow_live_p); |
727e958e MR |
7309 | defsubr (&Swindow_frame); |
7310 | defsubr (&Sframe_root_window); | |
7311 | defsubr (&Sframe_first_window); | |
7312 | defsubr (&Sframe_selected_window); | |
7313 | defsubr (&Sset_frame_selected_window); | |
7ab12479 | 7314 | defsubr (&Spos_visible_in_window_p); |
536833ab | 7315 | defsubr (&Swindow_line_height); |
7ab12479 | 7316 | defsubr (&Swindow_buffer); |
bf60a96b | 7317 | defsubr (&Swindow_parent); |
d68443dc MR |
7318 | defsubr (&Swindow_top_child); |
7319 | defsubr (&Swindow_left_child); | |
7320 | defsubr (&Swindow_next_sibling); | |
7321 | defsubr (&Swindow_prev_sibling); | |
b6f67890 MR |
7322 | defsubr (&Swindow_combination_limit); |
7323 | defsubr (&Sset_window_combination_limit); | |
abde8f8c | 7324 | defsubr (&Swindow_use_time); |
880e6158 MR |
7325 | defsubr (&Swindow_pixel_width); |
7326 | defsubr (&Swindow_pixel_height); | |
105216ed | 7327 | defsubr (&Swindow_total_width); |
880e6158 | 7328 | defsubr (&Swindow_total_height); |
496e208e | 7329 | defsubr (&Swindow_normal_size); |
880e6158 | 7330 | defsubr (&Swindow_new_pixel); |
496e208e MR |
7331 | defsubr (&Swindow_new_total); |
7332 | defsubr (&Swindow_new_normal); | |
880e6158 MR |
7333 | defsubr (&Swindow_pixel_left); |
7334 | defsubr (&Swindow_pixel_top); | |
7335 | defsubr (&Swindow_left_column); | |
7336 | defsubr (&Swindow_top_line); | |
7337 | defsubr (&Sset_window_new_pixel); | |
496e208e MR |
7338 | defsubr (&Sset_window_new_total); |
7339 | defsubr (&Sset_window_new_normal); | |
d615d6d2 | 7340 | defsubr (&Swindow_resize_apply); |
880e6158 | 7341 | defsubr (&Swindow_resize_apply_total); |
105216ed CY |
7342 | defsubr (&Swindow_body_height); |
7343 | defsubr (&Swindow_body_width); | |
7ab12479 JB |
7344 | defsubr (&Swindow_hscroll); |
7345 | defsubr (&Sset_window_hscroll); | |
190eb263 RS |
7346 | defsubr (&Swindow_redisplay_end_trigger); |
7347 | defsubr (&Sset_window_redisplay_end_trigger); | |
7ab12479 | 7348 | defsubr (&Swindow_edges); |
c99a9eb3 | 7349 | defsubr (&Swindow_pixel_edges); |
9d5405ec | 7350 | defsubr (&Swindow_absolute_pixel_edges); |
880e6158 MR |
7351 | defsubr (&Swindow_mode_line_height); |
7352 | defsubr (&Swindow_header_line_height); | |
7353 | defsubr (&Swindow_right_divider_width); | |
7354 | defsubr (&Swindow_bottom_divider_width); | |
c99a9eb3 RS |
7355 | defsubr (&Swindow_inside_edges); |
7356 | defsubr (&Swindow_inside_pixel_edges); | |
9d5405ec | 7357 | defsubr (&Swindow_inside_absolute_pixel_edges); |
d5783c40 JB |
7358 | defsubr (&Scoordinates_in_window_p); |
7359 | defsubr (&Swindow_at); | |
7ab12479 JB |
7360 | defsubr (&Swindow_point); |
7361 | defsubr (&Swindow_start); | |
7362 | defsubr (&Swindow_end); | |
7363 | defsubr (&Sset_window_point); | |
7364 | defsubr (&Sset_window_start); | |
7365 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 7366 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
7367 | defsubr (&Swindow_display_table); |
7368 | defsubr (&Sset_window_display_table); | |
7369 | defsubr (&Snext_window); | |
7370 | defsubr (&Sprevious_window); | |
7ab12479 | 7371 | defsubr (&Sget_buffer_window); |
1a13852e MR |
7372 | defsubr (&Sdelete_other_windows_internal); |
7373 | defsubr (&Sdelete_window_internal); | |
7374 | defsubr (&Sresize_mini_window_internal); | |
7ab12479 | 7375 | defsubr (&Sset_window_buffer); |
1a13852e | 7376 | defsubr (&Srun_window_configuration_change_hook); |
880e6158 | 7377 | defsubr (&Srun_window_scroll_functions); |
7ab12479 | 7378 | defsubr (&Sselect_window); |
6b61353c | 7379 | defsubr (&Sforce_window_update); |
1a13852e | 7380 | defsubr (&Ssplit_window_internal); |
7ab12479 JB |
7381 | defsubr (&Sscroll_up); |
7382 | defsubr (&Sscroll_down); | |
7383 | defsubr (&Sscroll_left); | |
7384 | defsubr (&Sscroll_right); | |
ccd0664b | 7385 | defsubr (&Sother_window_for_scrolling); |
7ab12479 | 7386 | defsubr (&Sscroll_other_window); |
fa832261 | 7387 | defsubr (&Sminibuffer_selected_window); |
7ab12479 | 7388 | defsubr (&Srecenter); |
880e6158 | 7389 | defsubr (&Swindow_text_width); |
81fe0836 | 7390 | defsubr (&Swindow_text_height); |
7ab12479 JB |
7391 | defsubr (&Smove_to_window_line); |
7392 | defsubr (&Swindow_configuration_p); | |
3f8ab7bd | 7393 | defsubr (&Swindow_configuration_frame); |
7ab12479 JB |
7394 | defsubr (&Sset_window_configuration); |
7395 | defsubr (&Scurrent_window_configuration); | |
5500c422 GM |
7396 | defsubr (&Sset_window_margins); |
7397 | defsubr (&Swindow_margins); | |
949cf20f KS |
7398 | defsubr (&Sset_window_fringes); |
7399 | defsubr (&Swindow_fringes); | |
7400 | defsubr (&Sset_window_scroll_bars); | |
7401 | defsubr (&Swindow_scroll_bars); | |
5500c422 GM |
7402 | defsubr (&Swindow_vscroll); |
7403 | defsubr (&Sset_window_vscroll); | |
2f8274be | 7404 | defsubr (&Scompare_window_configurations); |
67492200 | 7405 | defsubr (&Swindow_list); |
abde8f8c | 7406 | defsubr (&Swindow_list_1); |
496e208e MR |
7407 | defsubr (&Swindow_prev_buffers); |
7408 | defsubr (&Sset_window_prev_buffers); | |
7409 | defsubr (&Swindow_next_buffers); | |
7410 | defsubr (&Sset_window_next_buffers); | |
cfbb2395 JB |
7411 | defsubr (&Swindow_parameters); |
7412 | defsubr (&Swindow_parameter); | |
7413 | defsubr (&Sset_window_parameter); | |
7ab12479 JB |
7414 | } |
7415 | ||
dfcf069d | 7416 | void |
971de7fb | 7417 | keys_of_window (void) |
7ab12479 | 7418 | { |
7ab12479 JB |
7419 | initial_define_key (control_x_map, '<', "scroll-left"); |
7420 | initial_define_key (control_x_map, '>', "scroll-right"); | |
7421 | ||
32129746 | 7422 | initial_define_key (global_map, Ctl ('V'), "scroll-up-command"); |
7ab12479 | 7423 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); |
32129746 | 7424 | initial_define_key (meta_map, 'v', "scroll-down-command"); |
7ab12479 | 7425 | } |