Commit | Line | Data |
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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
ab422c4d PE |
3 | Copyright (C) 1985-1987, 1993-1998, 2000-2013 Free Software |
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; |
b9e809c2 | 57 | |
f57e2426 | 58 | static int displayed_window_lines (struct window *); |
f57e2426 J |
59 | static int count_windows (struct window *); |
60 | static int get_leaf_windows (struct window *, struct window **, int); | |
56b5d5b1 DA |
61 | static void window_scroll (Lisp_Object, EMACS_INT, bool, int); |
62 | static void window_scroll_pixel_based (Lisp_Object, int, bool, int); | |
63 | static void window_scroll_line_based (Lisp_Object, int, bool, int); | |
f57e2426 | 64 | static int add_window_to_list (struct window *, void *); |
f57e2426 J |
65 | static Lisp_Object next_window (Lisp_Object, Lisp_Object, |
66 | Lisp_Object, int); | |
67 | static void decode_next_window_args (Lisp_Object *, Lisp_Object *, | |
68 | Lisp_Object *); | |
2f7c71a1 | 69 | static void foreach_window (struct frame *, |
f95464e4 | 70 | int (* fn) (struct window *, void *), |
2f7c71a1 | 71 | void *); |
f57e2426 J |
72 | static int foreach_window_1 (struct window *, |
73 | int (* fn) (struct window *, void *), | |
74 | void *); | |
75 | static Lisp_Object window_list_1 (Lisp_Object, Lisp_Object, Lisp_Object); | |
748fa866 DA |
76 | static int window_resize_check (struct window *, bool); |
77 | static void window_resize_apply (struct window *, bool); | |
880e6158 | 78 | static void window_resize_apply_total (struct window *, bool); |
7c82f3e2 | 79 | static Lisp_Object select_window (Lisp_Object, Lisp_Object, int); |
12384b01 | 80 | static void select_window_1 (Lisp_Object, bool); |
b7354ddf | 81 | |
25554267 DA |
82 | static struct window *set_window_fringes (struct window *, Lisp_Object, |
83 | Lisp_Object, Lisp_Object); | |
84 | static struct window *set_window_margins (struct window *, Lisp_Object, | |
85 | Lisp_Object); | |
86 | static struct window *set_window_scroll_bars (struct window *, Lisp_Object, | |
87 | Lisp_Object, Lisp_Object); | |
88 | static void apply_window_adjustment (struct window *); | |
89 | ||
7ab12479 JB |
90 | /* This is the window in which the terminal's cursor should |
91 | be left when nothing is being done with it. This must | |
92 | always be a leaf window, and its buffer is selected by | |
93 | the top level editing loop at the end of each command. | |
94 | ||
95 | This value is always the same as | |
44fa5b1e | 96 | FRAME_SELECTED_WINDOW (selected_frame). */ |
7ab12479 JB |
97 | Lisp_Object selected_window; |
98 | ||
67492200 GM |
99 | /* A list of all windows for use by next_window and Fwindow_list. |
100 | Functions creating or deleting windows should invalidate this cache | |
101 | by setting it to nil. */ | |
67492200 GM |
102 | Lisp_Object Vwindow_list; |
103 | ||
5500c422 GM |
104 | /* The mini-buffer window of the selected frame. |
105 | Note that you cannot test for mini-bufferness of an arbitrary window | |
106 | by comparing against this; but you can test for mini-bufferness of | |
7ab12479 JB |
107 | the selected window. */ |
108 | Lisp_Object minibuf_window; | |
109 | ||
3f49fddc KS |
110 | /* Non-nil means it is the window whose mode line should be |
111 | shown as the selected window when the minibuffer is selected. */ | |
3dbab091 | 112 | Lisp_Object minibuf_selected_window; |
3f49fddc | 113 | |
a58ec57d | 114 | /* Hook run at end of temp_output_buffer_show. */ |
955cbe7b | 115 | static Lisp_Object Qtemp_buffer_show_hook; |
a58ec57d | 116 | |
880e6158 MR |
117 | /* Incremented for each window created. */ |
118 | static int sequence_number; | |
119 | ||
5b03d3c0 RS |
120 | /* Nonzero after init_window_once has finished. */ |
121 | static int window_initialized; | |
122 | ||
543f5fb1 | 123 | /* Hook to run when window config changes. */ |
eeca6f6f | 124 | static Lisp_Object Qwindow_configuration_change_hook; |
0d384044 | 125 | |
66d43aea | 126 | /* Used by the function window_scroll_pixel_based */ |
c876b227 | 127 | static int window_scroll_pixel_based_preserve_x; |
66fe93d1 | 128 | static int window_scroll_pixel_based_preserve_y; |
66d43aea | 129 | |
c876b227 | 130 | /* Same for window_scroll_line_based. */ |
d311d28c PE |
131 | static EMACS_INT window_scroll_preserve_hpos; |
132 | static EMACS_INT window_scroll_preserve_vpos; | |
f230ecc9 | 133 | \f |
84575e67 PE |
134 | static void |
135 | CHECK_WINDOW_CONFIGURATION (Lisp_Object x) | |
136 | { | |
137 | CHECK_TYPE (WINDOW_CONFIGURATIONP (x), Qwindow_configuration_p, x); | |
138 | } | |
139 | ||
e8c17b81 | 140 | /* These setters are used only in this file, so they can be private. */ |
b0ab8123 | 141 | static void |
e8c17b81 PE |
142 | wset_combination_limit (struct window *w, Lisp_Object val) |
143 | { | |
144 | w->combination_limit = val; | |
145 | } | |
b0ab8123 | 146 | static void |
e8c17b81 PE |
147 | wset_dedicated (struct window *w, Lisp_Object val) |
148 | { | |
149 | w->dedicated = val; | |
150 | } | |
b0ab8123 | 151 | static void |
e8c17b81 PE |
152 | wset_display_table (struct window *w, Lisp_Object val) |
153 | { | |
154 | w->display_table = val; | |
155 | } | |
b0ab8123 | 156 | static void |
e8c17b81 PE |
157 | wset_new_normal (struct window *w, Lisp_Object val) |
158 | { | |
159 | w->new_normal = val; | |
160 | } | |
b0ab8123 | 161 | static void |
e8c17b81 PE |
162 | wset_new_total (struct window *w, Lisp_Object val) |
163 | { | |
164 | w->new_total = val; | |
165 | } | |
b0ab8123 | 166 | static void |
e8c17b81 PE |
167 | wset_normal_cols (struct window *w, Lisp_Object val) |
168 | { | |
169 | w->normal_cols = val; | |
170 | } | |
b0ab8123 | 171 | static void |
e8c17b81 PE |
172 | wset_normal_lines (struct window *w, Lisp_Object val) |
173 | { | |
174 | w->normal_lines = val; | |
175 | } | |
b0ab8123 | 176 | static void |
e8c17b81 PE |
177 | wset_parent (struct window *w, Lisp_Object val) |
178 | { | |
179 | w->parent = val; | |
180 | } | |
b0ab8123 | 181 | static void |
e8c17b81 PE |
182 | wset_pointm (struct window *w, Lisp_Object val) |
183 | { | |
184 | w->pointm = val; | |
185 | } | |
b0ab8123 | 186 | static void |
e8c17b81 PE |
187 | wset_start (struct window *w, Lisp_Object val) |
188 | { | |
189 | w->start = val; | |
190 | } | |
b0ab8123 | 191 | static void |
e8c17b81 PE |
192 | wset_temslot (struct window *w, Lisp_Object val) |
193 | { | |
194 | w->temslot = val; | |
195 | } | |
b0ab8123 | 196 | static void |
e8c17b81 PE |
197 | wset_vertical_scroll_bar_type (struct window *w, Lisp_Object val) |
198 | { | |
199 | w->vertical_scroll_bar_type = val; | |
200 | } | |
b0ab8123 | 201 | static void |
e8c17b81 PE |
202 | wset_window_parameters (struct window *w, Lisp_Object val) |
203 | { | |
204 | w->window_parameters = val; | |
205 | } | |
e74aeda8 DA |
206 | static void |
207 | wset_combination (struct window *w, bool horflag, Lisp_Object val) | |
208 | { | |
209 | /* Since leaf windows never becomes non-leaf, there should | |
210 | be no buffer and markers in start and pointm fields of W. */ | |
211 | eassert (!BUFFERP (w->contents) && NILP (w->start) && NILP (w->pointm)); | |
212 | w->contents = val; | |
213 | /* When an internal window is deleted and VAL is nil, HORFLAG | |
214 | is meaningless. */ | |
215 | if (!NILP (val)) | |
216 | w->horizontal = horflag; | |
217 | } | |
e8c17b81 | 218 | |
170da1ec DA |
219 | /* Nonzero if leaf window W doesn't reflect the actual state |
220 | of displayed buffer due to its text or overlays change. */ | |
221 | ||
222 | bool | |
223 | window_outdated (struct window *w) | |
224 | { | |
225 | struct buffer *b = XBUFFER (w->contents); | |
226 | return (w->last_modified < BUF_MODIFF (b) | |
227 | || w->last_overlay_modified < BUF_OVERLAY_MODIFF (b)); | |
228 | } | |
229 | ||
52162052 MR |
230 | struct window * |
231 | decode_live_window (register Lisp_Object window) | |
f230ecc9 MR |
232 | { |
233 | if (NILP (window)) | |
234 | return XWINDOW (selected_window); | |
c876b227 | 235 | |
f230ecc9 MR |
236 | CHECK_LIVE_WINDOW (window); |
237 | return XWINDOW (window); | |
238 | } | |
239 | ||
b9e9df47 | 240 | struct window * |
f230ecc9 MR |
241 | decode_any_window (register Lisp_Object window) |
242 | { | |
6e5d1c12 CY |
243 | struct window *w; |
244 | ||
f230ecc9 MR |
245 | if (NILP (window)) |
246 | return XWINDOW (selected_window); | |
247 | ||
248 | CHECK_WINDOW (window); | |
6e5d1c12 | 249 | w = XWINDOW (window); |
6e5d1c12 | 250 | return w; |
f230ecc9 | 251 | } |
666e158e | 252 | |
b52d6985 | 253 | static struct window * |
52162052 MR |
254 | decode_valid_window (register Lisp_Object window) |
255 | { | |
256 | struct window *w; | |
257 | ||
258 | if (NILP (window)) | |
259 | return XWINDOW (selected_window); | |
260 | ||
261 | CHECK_VALID_WINDOW (window); | |
262 | w = XWINDOW (window); | |
263 | return w; | |
264 | } | |
265 | ||
98a07056 DA |
266 | /* Called when W's buffer slot is changed. ARG -1 means that W is about to |
267 | cease its buffer, and 1 means that W is about to set up the new one. */ | |
268 | ||
269 | static void | |
270 | adjust_window_count (struct window *w, int arg) | |
271 | { | |
272 | eassert (eabs (arg) == 1); | |
e74aeda8 | 273 | if (BUFFERP (w->contents)) |
98a07056 | 274 | { |
e74aeda8 | 275 | struct buffer *b = XBUFFER (w->contents); |
3f781c75 | 276 | |
98a07056 DA |
277 | if (b->base_buffer) |
278 | b = b->base_buffer; | |
279 | b->window_count += arg; | |
280 | eassert (b->window_count >= 0); | |
422ff52b | 281 | /* These should be recalculated by redisplay code. */ |
9d93ce29 | 282 | w->window_end_valid = 0; |
422ff52b | 283 | w->base_line_pos = 0; |
98a07056 DA |
284 | } |
285 | } | |
286 | ||
287 | /* Set W's buffer slot to VAL and recompute number | |
288 | of windows showing VAL if it is a buffer. */ | |
289 | ||
290 | void | |
291 | wset_buffer (struct window *w, Lisp_Object val) | |
292 | { | |
293 | adjust_window_count (w, -1); | |
e74aeda8 DA |
294 | if (BUFFERP (val)) |
295 | /* Make sure that we do not assign the buffer | |
296 | to an internal window. */ | |
297 | eassert (MARKERP (w->start) && MARKERP (w->pointm)); | |
298 | w->contents = val; | |
98a07056 DA |
299 | adjust_window_count (w, 1); |
300 | } | |
301 | ||
7ab12479 | 302 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, |
f230ecc9 | 303 | doc: /* Return t if OBJECT is a window and nil otherwise. */) |
5842a27b | 304 | (Lisp_Object object) |
7ab12479 | 305 | { |
413430c5 | 306 | return WINDOWP (object) ? Qt : Qnil; |
7ab12479 JB |
307 | } |
308 | ||
52162052 MR |
309 | DEFUN ("window-valid-p", Fwindow_valid_p, Swindow_valid_p, 1, 1, 0, |
310 | doc: /* Return t if OBJECT is a valid window and nil otherwise. | |
311 | A valid window is either a window that displays a buffer or an internal | |
312 | window. Deleted windows are not live. */) | |
313 | (Lisp_Object object) | |
314 | { | |
315 | return WINDOW_VALID_P (object) ? Qt : Qnil; | |
316 | } | |
317 | ||
806b4d9b | 318 | DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0, |
f230ecc9 | 319 | doc: /* Return t if OBJECT is a live window and nil otherwise. |
49745b39 CY |
320 | A live window is a window that displays a buffer. |
321 | Internal windows and deleted windows are not live. */) | |
5842a27b | 322 | (Lisp_Object object) |
605be8af | 323 | { |
9e571f49 | 324 | return WINDOW_LIVE_P (object) ? Qt : Qnil; |
605be8af | 325 | } |
727e958e MR |
326 | \f |
327 | /* Frames and windows. */ | |
89bc0592 | 328 | DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 0, 1, 0, |
727e958e | 329 | doc: /* Return the frame that window WINDOW is on. |
52162052 | 330 | WINDOW must be a valid window and defaults to the selected one. */) |
727e958e MR |
331 | (Lisp_Object window) |
332 | { | |
52162052 | 333 | return decode_valid_window (window)->frame; |
727e958e MR |
334 | } |
335 | ||
336 | DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0, | |
87e68db4 JB |
337 | doc: /* Return the root window of FRAME-OR-WINDOW. |
338 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
49745b39 CY |
339 | With a frame argument, return that frame's root window. |
340 | With a window argument, return the root window of that window's frame. */) | |
727e958e MR |
341 | (Lisp_Object frame_or_window) |
342 | { | |
343 | Lisp_Object window; | |
344 | ||
345 | if (NILP (frame_or_window)) | |
e69b0960 | 346 | window = SELECTED_FRAME ()->root_window; |
52162052 MR |
347 | else if (WINDOW_VALID_P (frame_or_window)) |
348 | window = XFRAME (XWINDOW (frame_or_window)->frame)->root_window; | |
727e958e MR |
349 | else |
350 | { | |
351 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 352 | window = XFRAME (frame_or_window)->root_window; |
727e958e MR |
353 | } |
354 | ||
355 | return window; | |
356 | } | |
357 | ||
358 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, | |
49745b39 CY |
359 | doc: /* Return the minibuffer window for frame FRAME. |
360 | If FRAME is omitted or nil, it defaults to the selected frame. */) | |
727e958e MR |
361 | (Lisp_Object frame) |
362 | { | |
d9f07150 | 363 | return FRAME_MINIBUF_WINDOW (decode_live_frame (frame)); |
727e958e MR |
364 | } |
365 | ||
366 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, | |
367 | Swindow_minibuffer_p, 0, 1, 0, | |
368 | doc: /* Return non-nil if WINDOW is a minibuffer window. | |
52162052 | 369 | WINDOW must be a valid window and defaults to the selected one. */) |
727e958e MR |
370 | (Lisp_Object window) |
371 | { | |
52162052 | 372 | return MINI_WINDOW_P (decode_valid_window (window)) ? Qt : Qnil; |
727e958e MR |
373 | } |
374 | ||
375 | /* Don't move this to window.el - this must be a safe routine. */ | |
376 | DEFUN ("frame-first-window", Fframe_first_window, Sframe_first_window, 0, 1, 0, | |
87e68db4 JB |
377 | doc: /* Return the topmost, leftmost live window on FRAME-OR-WINDOW. |
378 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
52162052 MR |
379 | Else if FRAME-OR-WINDOW denotes a valid window, return the first window |
380 | of that window's frame. If FRAME-OR-WINDOW denotes a live frame, return | |
727e958e MR |
381 | the first window of that frame. */) |
382 | (Lisp_Object frame_or_window) | |
383 | { | |
384 | Lisp_Object window; | |
385 | ||
386 | if (NILP (frame_or_window)) | |
e69b0960 | 387 | window = SELECTED_FRAME ()->root_window; |
52162052 | 388 | else if (WINDOW_VALID_P (frame_or_window)) |
e69b0960 | 389 | window = XFRAME (WINDOW_FRAME (XWINDOW (frame_or_window)))->root_window; |
727e958e MR |
390 | else |
391 | { | |
392 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 393 | window = XFRAME (frame_or_window)->root_window; |
727e958e MR |
394 | } |
395 | ||
e74aeda8 DA |
396 | while (WINDOWP (XWINDOW (window)->contents)) |
397 | window = XWINDOW (window)->contents; | |
727e958e MR |
398 | |
399 | return window; | |
400 | } | |
401 | ||
402 | DEFUN ("frame-selected-window", Fframe_selected_window, | |
403 | Sframe_selected_window, 0, 1, 0, | |
87e68db4 JB |
404 | doc: /* Return the selected window of FRAME-OR-WINDOW. |
405 | If omitted, FRAME-OR-WINDOW defaults to the currently selected frame. | |
52162052 MR |
406 | Else if FRAME-OR-WINDOW denotes a valid window, return the selected |
407 | window of that window's frame. If FRAME-OR-WINDOW denotes a live frame, | |
408 | return the selected window of that frame. */) | |
727e958e MR |
409 | (Lisp_Object frame_or_window) |
410 | { | |
411 | Lisp_Object window; | |
412 | ||
413 | if (NILP (frame_or_window)) | |
e69b0960 | 414 | window = SELECTED_FRAME ()->selected_window; |
52162052 | 415 | else if (WINDOW_VALID_P (frame_or_window)) |
e69b0960 | 416 | window = XFRAME (WINDOW_FRAME (XWINDOW (frame_or_window)))->selected_window; |
727e958e MR |
417 | else |
418 | { | |
419 | CHECK_LIVE_FRAME (frame_or_window); | |
e69b0960 | 420 | window = XFRAME (frame_or_window)->selected_window; |
727e958e MR |
421 | } |
422 | ||
423 | return window; | |
424 | } | |
425 | ||
426 | DEFUN ("set-frame-selected-window", Fset_frame_selected_window, | |
427 | Sset_frame_selected_window, 2, 3, 0, | |
428 | doc: /* Set selected window of FRAME to WINDOW. | |
429 | FRAME must be a live frame and defaults to the selected one. If FRAME | |
430 | is the selected frame, this makes WINDOW the selected window. Optional | |
431 | argument NORECORD non-nil means to neither change the order of recently | |
432 | selected windows nor the buffer list. WINDOW must denote a live window. | |
433 | Return WINDOW. */) | |
434 | (Lisp_Object frame, Lisp_Object window, Lisp_Object norecord) | |
435 | { | |
436 | if (NILP (frame)) | |
437 | frame = selected_frame; | |
438 | ||
439 | CHECK_LIVE_FRAME (frame); | |
440 | CHECK_LIVE_WINDOW (window); | |
441 | ||
442 | if (! EQ (frame, WINDOW_FRAME (XWINDOW (window)))) | |
443 | error ("In `set-frame-selected-window', WINDOW is not on FRAME"); | |
444 | ||
445 | if (EQ (frame, selected_frame)) | |
446 | return Fselect_window (window, norecord); | |
447 | else | |
f00af5b1 PE |
448 | { |
449 | fset_selected_window (XFRAME (frame), window); | |
450 | return window; | |
451 | } | |
727e958e MR |
452 | } |
453 | ||
454 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
455 | doc: /* Return the selected window. | |
456 | The selected window is the window in which the standard cursor for | |
457 | selected windows appears and to which many commands apply. */) | |
458 | (void) | |
459 | { | |
460 | return selected_window; | |
461 | } | |
462 | ||
9397e56f MR |
463 | int window_select_count; |
464 | ||
727e958e MR |
465 | /* If select_window is called with inhibit_point_swap non-zero it will |
466 | not store point of the old selected window's buffer back into that | |
467 | window's pointm slot. This is needed by Fset_window_configuration to | |
468 | avoid that the display routine is called with selected_window set to | |
469 | Qnil causing a subsequent crash. */ | |
470 | static Lisp_Object | |
471 | select_window (Lisp_Object window, Lisp_Object norecord, int inhibit_point_swap) | |
472 | { | |
473 | register struct window *w; | |
727e958e MR |
474 | struct frame *sf; |
475 | ||
476 | CHECK_LIVE_WINDOW (window); | |
477 | ||
478 | w = XWINDOW (window); | |
727e958e | 479 | |
734fbd86 | 480 | /* Make the selected window's buffer current. */ |
e74aeda8 | 481 | Fset_buffer (w->contents); |
734fbd86 | 482 | |
727e958e | 483 | if (EQ (window, selected_window) && !inhibit_point_swap) |
562c6ee9 SM |
484 | /* `switch-to-buffer' uses (select-window (selected-window)) as a "clever" |
485 | way to call record_buffer from Elisp, so it's important that we call | |
486 | record_buffer before returning here. */ | |
487 | goto record_and_return; | |
727e958e | 488 | |
655ab9a3 SM |
489 | if (NILP (norecord)) |
490 | /* Mark the window for redisplay since the selected-window has a different | |
491 | mode-line. */ | |
492 | wset_redisplay (XWINDOW (selected_window)); | |
493 | else | |
494 | redisplay_other_windows (); | |
727e958e MR |
495 | sf = SELECTED_FRAME (); |
496 | if (XFRAME (WINDOW_FRAME (w)) != sf) | |
497 | { | |
f00af5b1 | 498 | fset_selected_window (XFRAME (WINDOW_FRAME (w)), window); |
727e958e MR |
499 | /* Use this rather than Fhandle_switch_frame |
500 | so that FRAME_FOCUS_FRAME is moved appropriately as we | |
501 | move around in the state where a minibuffer in a separate | |
502 | frame is active. */ | |
503 | Fselect_frame (WINDOW_FRAME (w), norecord); | |
504 | /* Fselect_frame called us back so we've done all the work already. */ | |
505 | eassert (EQ (window, selected_window)); | |
506 | return window; | |
507 | } | |
508 | else | |
f00af5b1 | 509 | fset_selected_window (sf, window); |
727e958e | 510 | |
1e101a4b | 511 | select_window_1 (window, inhibit_point_swap); |
562c6ee9 | 512 | bset_last_selected_window (XBUFFER (w->contents), window); |
655ab9a3 SM |
513 | if (NILP (norecord)) |
514 | wset_redisplay (w); | |
1e101a4b | 515 | |
562c6ee9 | 516 | record_and_return: |
7ffe7ef6 SM |
517 | /* record_buffer can run QUIT, so make sure it is run only after we have |
518 | re-established the invariant between selected_window and selected_frame, | |
519 | otherwise the temporary broken invariant might "escape" (bug#14161). */ | |
520 | if (NILP (norecord)) | |
521 | { | |
522 | w->use_time = ++window_select_count; | |
523 | record_buffer (w->contents); | |
524 | } | |
525 | ||
1e101a4b SM |
526 | return window; |
527 | } | |
528 | ||
529 | /* Select window with a minimum of fuss, i.e. don't record the change anywhere | |
3f781c75 | 530 | (not even for redisplay's benefit), and assume that the window's frame is |
1e101a4b | 531 | already selected. */ |
12384b01 | 532 | static void |
1e101a4b SM |
533 | select_window_1 (Lisp_Object window, bool inhibit_point_swap) |
534 | { | |
734fbd86 MR |
535 | /* Store the old selected window's buffer's point in pointm of the old |
536 | selected window. It belongs to that window, and when the window is | |
537 | not selected, must be in the window. */ | |
727e958e MR |
538 | if (!inhibit_point_swap) |
539 | { | |
1e101a4b | 540 | struct window *ow = XWINDOW (selected_window); |
e74aeda8 DA |
541 | if (BUFFERP (ow->contents)) |
542 | set_marker_both (ow->pointm, ow->contents, | |
543 | BUF_PT (XBUFFER (ow->contents)), | |
544 | BUF_PT_BYTE (XBUFFER (ow->contents))); | |
727e958e MR |
545 | } |
546 | ||
547 | selected_window = window; | |
727e958e MR |
548 | |
549 | /* Go to the point recorded in the window. | |
550 | This is important when the buffer is in more | |
551 | than one window. It also matters when | |
552 | redisplay_window has altered point after scrolling, | |
553 | because it makes the change only in the window. */ | |
032f7451 | 554 | set_point_from_marker (XWINDOW (window)->pointm); |
727e958e MR |
555 | } |
556 | ||
557 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 2, 0, | |
94900bfe MR |
558 | doc: /* Select WINDOW which must be a live window. |
559 | Also make WINDOW's frame the selected frame and WINDOW that frame's | |
560 | selected window. In addition, make WINDOW's buffer current and set that | |
561 | buffer's value of `point' to the value of WINDOW's `window-point'. | |
562 | Return WINDOW. | |
727e958e MR |
563 | |
564 | Optional second arg NORECORD non-nil means do not put this buffer at the | |
565 | front of the buffer list and do not make this window the most recently | |
566 | selected one. | |
605be8af | 567 | |
727e958e MR |
568 | Note that the main editor command loop sets the current buffer to the |
569 | buffer of the selected window before each command. */) | |
570 | (register Lisp_Object window, Lisp_Object norecord) | |
571 | { | |
572 | return select_window (window, norecord, 0); | |
573 | } | |
574 | \f | |
bf60a96b | 575 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, |
49745b39 CY |
576 | doc: /* Return the buffer displayed in window WINDOW. |
577 | If WINDOW is omitted or nil, it defaults to the selected window. | |
578 | Return nil for an internal window or a deleted window. */) | |
bf60a96b MR |
579 | (Lisp_Object window) |
580 | { | |
e74aeda8 DA |
581 | struct window *w = decode_any_window (window); |
582 | return WINDOW_LEAF_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
583 | } |
584 | ||
585 | DEFUN ("window-parent", Fwindow_parent, Swindow_parent, 0, 1, 0, | |
49745b39 | 586 | doc: /* Return the parent window of window WINDOW. |
52162052 | 587 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 | 588 | Return nil for a window with no parent (e.g. a root window). */) |
bf60a96b MR |
589 | (Lisp_Object window) |
590 | { | |
52162052 | 591 | return decode_valid_window (window)->parent; |
bf60a96b MR |
592 | } |
593 | ||
89bc0592 | 594 | DEFUN ("window-top-child", Fwindow_top_child, Swindow_top_child, 0, 1, 0, |
49745b39 | 595 | doc: /* Return the topmost child window of window WINDOW. |
52162052 | 596 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 CY |
597 | Return nil if WINDOW is a live window (live windows have no children). |
598 | Return nil if WINDOW is an internal window whose children form a | |
599 | horizontal combination. */) | |
bf60a96b MR |
600 | (Lisp_Object window) |
601 | { | |
e74aeda8 DA |
602 | struct window *w = decode_valid_window (window); |
603 | return WINDOW_VERTICAL_COMBINATION_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
604 | } |
605 | ||
89bc0592 | 606 | DEFUN ("window-left-child", Fwindow_left_child, Swindow_left_child, 0, 1, 0, |
49745b39 | 607 | doc: /* Return the leftmost child window of window WINDOW. |
52162052 | 608 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 CY |
609 | Return nil if WINDOW is a live window (live windows have no children). |
610 | Return nil if WINDOW is an internal window whose children form a | |
611 | vertical combination. */) | |
bf60a96b MR |
612 | (Lisp_Object window) |
613 | { | |
e74aeda8 DA |
614 | struct window *w = decode_valid_window (window); |
615 | return WINDOW_HORIZONTAL_COMBINATION_P (w) ? w->contents : Qnil; | |
bf60a96b MR |
616 | } |
617 | ||
d68443dc | 618 | DEFUN ("window-next-sibling", Fwindow_next_sibling, Swindow_next_sibling, 0, 1, 0, |
49745b39 | 619 | doc: /* Return the next sibling window of window WINDOW. |
52162052 | 620 | WINDOW must be a valid window and defaults to the selected one. |
d68443dc | 621 | Return nil if WINDOW has no next sibling. */) |
bf60a96b MR |
622 | (Lisp_Object window) |
623 | { | |
52162052 | 624 | return decode_valid_window (window)->next; |
bf60a96b MR |
625 | } |
626 | ||
d68443dc | 627 | DEFUN ("window-prev-sibling", Fwindow_prev_sibling, Swindow_prev_sibling, 0, 1, 0, |
49745b39 | 628 | doc: /* Return the previous sibling window of window WINDOW. |
52162052 | 629 | WINDOW must be a valid window and defaults to the selected one. |
d68443dc | 630 | Return nil if WINDOW has no previous sibling. */) |
bf60a96b MR |
631 | (Lisp_Object window) |
632 | { | |
52162052 | 633 | return decode_valid_window (window)->prev; |
bf60a96b | 634 | } |
67492200 | 635 | |
72f94d4b | 636 | DEFUN ("window-combination-limit", Fwindow_combination_limit, Swindow_combination_limit, 1, 1, 0, |
b6f67890 | 637 | doc: /* Return combination limit of window WINDOW. |
095d384d | 638 | WINDOW must be a valid window used in horizontal or vertical combination. |
be7f5545 | 639 | If the return value is nil, child windows of WINDOW can be recombined with |
b6f67890 | 640 | WINDOW's siblings. A return value of t means that child windows of |
095d384d | 641 | WINDOW are never \(re-)combined with WINDOW's siblings. */) |
496e208e | 642 | (Lisp_Object window) |
7ab12479 | 643 | { |
095d384d DA |
644 | struct window *w; |
645 | ||
72f94d4b | 646 | CHECK_VALID_WINDOW (window); |
095d384d | 647 | w = XWINDOW (window); |
e74aeda8 | 648 | if (WINDOW_LEAF_P (w)) |
095d384d | 649 | error ("Combination limit is meaningful for internal windows only"); |
e74aeda8 | 650 | return w->combination_limit; |
7ab12479 | 651 | } |
53bb6b99 | 652 | |
b6f67890 | 653 | DEFUN ("set-window-combination-limit", Fset_window_combination_limit, Sset_window_combination_limit, 2, 2, 0, |
d2999b1a | 654 | doc: /* Set combination limit of window WINDOW to LIMIT; return LIMIT. |
095d384d | 655 | WINDOW must be a valid window used in horizontal or vertical combination. |
8e17c9ba MR |
656 | If LIMIT is nil, child windows of WINDOW can be recombined with WINDOW's |
657 | siblings. LIMIT t means that child windows of WINDOW are never | |
658 | \(re-)combined with WINDOW's siblings. Other values are reserved for | |
095d384d | 659 | future use. */) |
d2999b1a | 660 | (Lisp_Object window, Lisp_Object limit) |
b3a10345 | 661 | { |
095d384d DA |
662 | struct window *w; |
663 | ||
664 | CHECK_VALID_WINDOW (window); | |
665 | w = XWINDOW (window); | |
e74aeda8 | 666 | if (WINDOW_LEAF_P (w)) |
095d384d DA |
667 | error ("Combination limit is meaningful for internal windows only"); |
668 | wset_combination_limit (w, limit); | |
e8c17b81 | 669 | return limit; |
496e208e | 670 | } |
7bbc67d2 | 671 | |
496e208e | 672 | DEFUN ("window-use-time", Fwindow_use_time, Swindow_use_time, 0, 1, 0, |
49745b39 | 673 | doc: /* Return the use time of window WINDOW. |
52162052 | 674 | WINDOW must be a live window and defaults to the selected one. |
49745b39 CY |
675 | The window with the highest use time is the most recently selected |
676 | one. The window with the lowest use time is the least recently | |
677 | selected one. */) | |
496e208e MR |
678 | (Lisp_Object window) |
679 | { | |
52162052 | 680 | return make_number (decode_live_window (window)->use_time); |
496e208e | 681 | } |
abde8f8c | 682 | \f |
880e6158 MR |
683 | DEFUN ("window-pixel-width", Fwindow_pixel_width, Swindow_pixel_width, 0, 1, 0, |
684 | doc: /* Return the pixel width of window WINDOW. | |
685 | WINDOW must be a valid window and defaults to the selected one. | |
686 | ||
687 | The return value includes the fringes and margins of WINDOW as well as | |
688 | any vertical dividers or scroll bars belonging to WINDOW. If WINDOW is | |
689 | an internal window, its pixel width is the width of the screen areas | |
690 | spanned by its children. */) | |
691 | (Lisp_Object window) | |
692 | { | |
693 | return make_number (decode_valid_window (window)->pixel_width); | |
694 | } | |
695 | ||
696 | DEFUN ("window-pixel-height", Fwindow_pixel_height, Swindow_pixel_height, 0, 1, 0, | |
697 | doc: /* Return the pixel height of window WINDOW. | |
698 | WINDOW must be a valid window and defaults to the selected one. | |
699 | ||
700 | The return value includes the mode line and header line, if any. If | |
701 | WINDOW is an internal window, its pixel height is the height of the | |
702 | screen areas spanned by its children. */) | |
703 | (Lisp_Object window) | |
704 | { | |
705 | return make_number (decode_valid_window (window)->pixel_height); | |
706 | } | |
707 | ||
105216ed CY |
708 | DEFUN ("window-total-height", Fwindow_total_height, Swindow_total_height, 0, 1, 0, |
709 | doc: /* Return the total height, in lines, of window WINDOW. | |
52162052 | 710 | WINDOW must be a valid window and defaults to the selected one. |
b3a10345 | 711 | |
105216ed CY |
712 | The return value includes the mode line and header line, if any. |
713 | If WINDOW is an internal window, the total height is the height | |
714 | of the screen areas spanned by its children. | |
536833ab | 715 | |
105216ed CY |
716 | On a graphical display, this total height is reported as an |
717 | integer multiple of the default character height. */) | |
718 | (Lisp_Object window) | |
496e208e | 719 | { |
5f24fa51 | 720 | return make_number (decode_valid_window (window)->total_lines); |
105216ed | 721 | } |
536833ab | 722 | |
105216ed CY |
723 | DEFUN ("window-total-width", Fwindow_total_width, Swindow_total_width, 0, 1, 0, |
724 | doc: /* Return the total width, in columns, of window WINDOW. | |
52162052 | 725 | WINDOW must be a valid window and defaults to the selected one. |
b3a10345 | 726 | |
105216ed CY |
727 | The return value includes any vertical dividers or scroll bars |
728 | belonging to WINDOW. If WINDOW is an internal window, the total width | |
729 | is the width of the screen areas spanned by its children. | |
b3a10345 | 730 | |
105216ed CY |
731 | On a graphical display, this total width is reported as an |
732 | integer multiple of the default character width. */) | |
496e208e MR |
733 | (Lisp_Object window) |
734 | { | |
5f24fa51 | 735 | return make_number (decode_valid_window (window)->total_cols); |
abde8f8c | 736 | } |
b3a10345 | 737 | |
496e208e | 738 | DEFUN ("window-new-total", Fwindow_new_total, Swindow_new_total, 0, 1, 0, |
49745b39 | 739 | doc: /* Return the new total size of window WINDOW. |
52162052 | 740 | WINDOW must be a valid window and defaults to the selected one. */) |
496e208e MR |
741 | (Lisp_Object window) |
742 | { | |
52162052 | 743 | return decode_valid_window (window)->new_total; |
496e208e MR |
744 | } |
745 | ||
746 | DEFUN ("window-normal-size", Fwindow_normal_size, Swindow_normal_size, 0, 2, 0, | |
49745b39 | 747 | doc: /* Return the normal height of window WINDOW. |
52162052 | 748 | WINDOW must be a valid window and defaults to the selected one. |
49745b39 | 749 | If HORIZONTAL is non-nil, return the normal width of WINDOW. */) |
496e208e MR |
750 | (Lisp_Object window, Lisp_Object horizontal) |
751 | { | |
52162052 | 752 | struct window *w = decode_valid_window (window); |
d3d50620 DA |
753 | |
754 | return NILP (horizontal) ? w->normal_lines : w->normal_cols; | |
496e208e MR |
755 | } |
756 | ||
757 | DEFUN ("window-new-normal", Fwindow_new_normal, Swindow_new_normal, 0, 1, 0, | |
49745b39 | 758 | doc: /* Return new normal size of window WINDOW. |
52162052 | 759 | WINDOW must be a valid window and defaults to the selected one. */) |
496e208e MR |
760 | (Lisp_Object window) |
761 | { | |
52162052 | 762 | return decode_valid_window (window)->new_normal; |
496e208e MR |
763 | } |
764 | ||
880e6158 MR |
765 | DEFUN ("window-new-pixel", Fwindow_new_pixel, Swindow_new_pixel, 0, 1, 0, |
766 | doc: /* Return new pixel size of window WINDOW. | |
767 | WINDOW must be a valid window and defaults to the selected one. */) | |
768 | (Lisp_Object window) | |
769 | { | |
770 | return decode_valid_window (window)->new_pixel; | |
771 | } | |
772 | ||
773 | DEFUN ("window-pixel-left", Fwindow_pixel_left, Swindow_pixel_left, 0, 1, 0, | |
774 | doc: /* Return left pixel edge of window WINDOW. | |
775 | WINDOW must be a valid window and defaults to the selected one. */) | |
776 | (Lisp_Object window) | |
777 | { | |
778 | return make_number (decode_valid_window (window)->pixel_left); | |
779 | } | |
780 | ||
781 | DEFUN ("window-pixel-top", Fwindow_pixel_top, Swindow_pixel_top, 0, 1, 0, | |
782 | doc: /* Return top pixel edge of window WINDOW. | |
783 | WINDOW must be a valid window and defaults to the selected one. */) | |
784 | (Lisp_Object window) | |
785 | { | |
786 | return make_number (decode_valid_window (window)->pixel_top); | |
787 | } | |
788 | ||
abde8f8c | 789 | DEFUN ("window-left-column", Fwindow_left_column, Swindow_left_column, 0, 1, 0, |
49745b39 | 790 | doc: /* Return left column of window WINDOW. |
105216ed CY |
791 | This is the distance, in columns, between the left edge of WINDOW and |
792 | the left edge of the frame's window area. For instance, the return | |
793 | value is 0 if there is no window to the left of WINDOW. | |
794 | ||
52162052 | 795 | WINDOW must be a valid window and defaults to the selected one. */) |
abde8f8c MR |
796 | (Lisp_Object window) |
797 | { | |
5f24fa51 | 798 | return make_number (decode_valid_window (window)->left_col); |
abde8f8c MR |
799 | } |
800 | ||
801 | DEFUN ("window-top-line", Fwindow_top_line, Swindow_top_line, 0, 1, 0, | |
49745b39 | 802 | doc: /* Return top line of window WINDOW. |
105216ed CY |
803 | This is the distance, in lines, between the top of WINDOW and the top |
804 | of the frame's window area. For instance, the return value is 0 if | |
805 | there is no window above WINDOW. | |
806 | ||
52162052 | 807 | WINDOW must be a valid window and defaults to the selected one. */) |
abde8f8c MR |
808 | (Lisp_Object window) |
809 | { | |
5f24fa51 | 810 | return make_number (decode_valid_window (window)->top_line); |
abde8f8c MR |
811 | } |
812 | ||
813 | /* Return the number of lines of W's body. Don't count any mode or | |
814 | header line of W. */ | |
815 | ||
46a4ce9e | 816 | static int |
880e6158 | 817 | window_body_height (struct window *w, bool pixelwise) |
abde8f8c | 818 | { |
880e6158 MR |
819 | int pixels = (w->pixel_height |
820 | - WINDOW_BOTTOM_DIVIDER_WIDTH (w) | |
821 | - WINDOW_HEADER_LINE_HEIGHT (w) | |
822 | - WINDOW_MODE_LINE_HEIGHT (w)); | |
823 | int unit = FRAME_LINE_HEIGHT (WINDOW_XFRAME (w)); | |
abde8f8c | 824 | |
880e6158 | 825 | return pixelwise ? pixels : ((pixels + unit - 1) / unit); |
abde8f8c MR |
826 | } |
827 | ||
828 | /* Return the number of columns of W's body. Don't count columns | |
829 | occupied by the scroll bar or the vertical bar separating W from its | |
830 | right sibling. On window-systems don't count fringes or display | |
831 | margins either. */ | |
abde8f8c | 832 | int |
880e6158 | 833 | window_body_width (struct window *w, bool pixelwise) |
abde8f8c MR |
834 | { |
835 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
abde8f8c | 836 | |
880e6158 MR |
837 | int pixels = (w->pixel_width |
838 | - WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
839 | - (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) | |
840 | ? WINDOW_SCROLL_BAR_AREA_WIDTH (w) | |
841 | : ((!FRAME_WINDOW_P (f) | |
842 | && !WINDOW_RIGHTMOST_P (w) | |
843 | && !WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
844 | && !WINDOW_FULL_WIDTH_P (w)) | |
845 | /* According to Eli this is either 1 or 0. */ | |
846 | ? 1 : 0)) | |
847 | - WINDOW_MARGINS_WIDTH (w) | |
848 | - (FRAME_WINDOW_P (f) | |
849 | ? WINDOW_FRINGES_WIDTH (w) | |
850 | : 0)); | |
851 | int unit = FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)); | |
852 | ||
853 | return pixelwise ? pixels : ((pixels + unit - 1) / unit); | |
854 | } | |
855 | ||
856 | DEFUN ("window-body-height", Fwindow_body_height, Swindow_body_height, 0, 2, 0, | |
857 | doc: /* Return the height, in lines, of WINDOW's text area. | |
858 | WINDOW must be a live window and defaults to the selected one. | |
abde8f8c | 859 | |
880e6158 | 860 | Optional argument PIXELWISE non-nil means return the height in pixels. |
f1665bdc | 861 | |
880e6158 MR |
862 | The returned height does not include the mode line or header line. On a |
863 | graphical display, the height is expressed as an integer multiple of the | |
864 | default character height if PIXELWISE is nil. | |
abde8f8c | 865 | |
880e6158 MR |
866 | If PIXELWISE is nil and a line at the bottom of the text area is only |
867 | partially visible, that counts as a whole line; to exclude | |
868 | partially-visible lines, use `window-text-height'. */) | |
869 | (Lisp_Object window, Lisp_Object pixelwise) | |
870 | { | |
871 | return make_number (window_body_height (decode_live_window (window), | |
872 | NILP (pixelwise) ? 0 : 1)); | |
abde8f8c MR |
873 | } |
874 | ||
880e6158 MR |
875 | DEFUN ("window-body-width", Fwindow_body_width, Swindow_body_width, 0, 2, 0, |
876 | doc: /* Return the width, in columns, of WINDOW's text area. | |
52162052 | 877 | WINDOW must be a live window and defaults to the selected one. |
89bd5ee1 | 878 | |
880e6158 MR |
879 | Optional argument PIXELWISE non-nil means return the width in pixels. |
880 | ||
881 | The return value does not include any vertical dividers, fringe or | |
882 | marginal areas, or scroll bars. On a graphical display, the width is | |
883 | expressed as an integer multiple of the default character width if | |
884 | PIXELWISE is nil. | |
885 | ||
886 | If PIXELWISE is nil and a column at the right of the text area is only | |
887 | partially visible, that counts as a whole column; to exclude | |
888 | partially-visible columns, use `window-text-width'. */) | |
889 | (Lisp_Object window, Lisp_Object pixelwise) | |
890 | { | |
891 | return make_number (window_body_width (decode_live_window (window), | |
892 | NILP (pixelwise) ? 0 : 1)); | |
893 | } | |
894 | ||
895 | DEFUN ("window-mode-line-height", Fwindow_mode_line_height, | |
896 | Swindow_mode_line_height, 0, 1, 0, | |
897 | doc: /* Return the height in pixel of WINDOW's mode-line. | |
898 | WINDOW must be a live window and defaults to the selected one. */) | |
105216ed | 899 | (Lisp_Object window) |
abde8f8c | 900 | { |
880e6158 | 901 | return (make_number (WINDOW_MODE_LINE_HEIGHT (decode_live_window (window)))); |
105216ed | 902 | } |
abde8f8c | 903 | |
880e6158 MR |
904 | DEFUN ("window-header-line-height", Fwindow_header_line_height, |
905 | Swindow_header_line_height, 0, 1, 0, | |
906 | doc: /* Return the height in pixel of WINDOW's header-line. | |
907 | WINDOW must be a live window and defaults to the selected one. */) | |
908 | (Lisp_Object window) | |
909 | { | |
910 | return (make_number (WINDOW_HEADER_LINE_HEIGHT (decode_live_window (window)))); | |
911 | } | |
105216ed | 912 | |
880e6158 MR |
913 | DEFUN ("window-right-divider-width", Fwindow_right_divider_width, |
914 | Swindow_right_divider_width, 0, 1, 0, | |
915 | doc: /* Return the width of WINDOW's right divider. | |
916 | WINDOW must be a live window and defaults to the selected one. */) | |
105216ed CY |
917 | (Lisp_Object window) |
918 | { | |
880e6158 MR |
919 | return (make_number (WINDOW_RIGHT_DIVIDER_WIDTH (decode_live_window (window)))); |
920 | } | |
921 | ||
922 | DEFUN ("window-bottom-divider-width", Fwindow_bottom_divider_width, | |
923 | Swindow_bottom_divider_width, 0, 1, 0, | |
924 | doc: /* Return the width of WINDOW's bottom divider. | |
925 | WINDOW must be a live window and defaults to the selected one. */) | |
926 | (Lisp_Object window) | |
927 | { | |
928 | return (make_number (WINDOW_BOTTOM_DIVIDER_WIDTH (decode_live_window (window)))); | |
abde8f8c | 929 | } |
536833ab | 930 | |
7ab12479 | 931 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, |
c85322d0 | 932 | doc: /* Return the number of columns by which WINDOW is scrolled from left margin. |
496e208e | 933 | WINDOW must be a live window and defaults to the selected one. */) |
5842a27b | 934 | (Lisp_Object window) |
7ab12479 | 935 | { |
52162052 | 936 | return make_number (decode_live_window (window)->hscroll); |
7ab12479 JB |
937 | } |
938 | ||
24a212eb PE |
939 | /* Set W's horizontal scroll amount to HSCROLL clipped to a reasonable |
940 | range, returning the new amount as a fixnum. */ | |
941 | static Lisp_Object | |
942 | set_window_hscroll (struct window *w, EMACS_INT hscroll) | |
943 | { | |
4e71fd89 PE |
944 | /* Horizontal scrolling has problems with large scroll amounts. |
945 | It's too slow with long lines, and even with small lines the | |
946 | display can be messed up. For now, though, impose only the limits | |
947 | required by the internal representation: horizontal scrolling must | |
948 | fit in fixnum (since it's visible to Elisp) and into ptrdiff_t | |
949 | (since it's stored in a ptrdiff_t). */ | |
950 | ptrdiff_t hscroll_max = min (MOST_POSITIVE_FIXNUM, PTRDIFF_MAX); | |
951 | ptrdiff_t new_hscroll = clip_to_bounds (0, hscroll, hscroll_max); | |
24a212eb PE |
952 | |
953 | /* Prevent redisplay shortcuts when changing the hscroll. */ | |
954 | if (w->hscroll != new_hscroll) | |
e74aeda8 | 955 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
24a212eb PE |
956 | |
957 | w->hscroll = new_hscroll; | |
958 | return make_number (new_hscroll); | |
959 | } | |
960 | ||
7ab12479 | 961 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, |
fdb82f93 | 962 | doc: /* Set number of columns WINDOW is scrolled from left margin to NCOL. |
52162052 | 963 | WINDOW must be a live window and defaults to the selected one. |
24a212eb PE |
964 | Clip the number to a reasonable value if out of range. |
965 | Return the new number. NCOL should be zero or positive. | |
ebadb1e4 EZ |
966 | |
967 | Note that if `automatic-hscrolling' is non-nil, you cannot scroll the | |
120b7781 | 968 | window so that the location of point moves off-window. */) |
5842a27b | 969 | (Lisp_Object window, Lisp_Object ncol) |
7ab12479 | 970 | { |
b7826503 | 971 | CHECK_NUMBER (ncol); |
89bc0592 | 972 | return set_window_hscroll (decode_live_window (window), XINT (ncol)); |
7ab12479 JB |
973 | } |
974 | ||
190eb263 RS |
975 | DEFUN ("window-redisplay-end-trigger", Fwindow_redisplay_end_trigger, |
976 | Swindow_redisplay_end_trigger, 0, 1, 0, | |
fdb82f93 | 977 | doc: /* Return WINDOW's redisplay end trigger value. |
52162052 | 978 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 | 979 | See `set-window-redisplay-end-trigger' for more information. */) |
5842a27b | 980 | (Lisp_Object window) |
190eb263 | 981 | { |
52162052 | 982 | return decode_live_window (window)->redisplay_end_trigger; |
190eb263 RS |
983 | } |
984 | ||
985 | DEFUN ("set-window-redisplay-end-trigger", Fset_window_redisplay_end_trigger, | |
986 | Sset_window_redisplay_end_trigger, 2, 2, 0, | |
fdb82f93 | 987 | doc: /* Set WINDOW's redisplay end trigger value to VALUE. |
52162052 MR |
988 | WINDOW must be a live window and defaults to the selected one. VALUE |
989 | should be a buffer position (typically a marker) or nil. If it is a | |
990 | buffer position, then if redisplay in WINDOW reaches a position beyond | |
991 | VALUE, the functions in `redisplay-end-trigger-functions' are called | |
992 | with two arguments: WINDOW, and the end trigger value. Afterwards the | |
993 | end-trigger value is reset to nil. */) | |
5842a27b | 994 | (register Lisp_Object window, Lisp_Object value) |
190eb263 | 995 | { |
e8c17b81 PE |
996 | wset_redisplay_end_trigger (decode_live_window (window), value); |
997 | return value; | |
190eb263 RS |
998 | } |
999 | ||
7ab12479 | 1000 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, |
fdb82f93 | 1001 | doc: /* Return a list of the edge coordinates of WINDOW. |
52162052 MR |
1002 | WINDOW must be a valid window and defaults to the selected one. |
1003 | ||
1004 | The returned list has the form (LEFT TOP RIGHT BOTTOM). TOP and BOTTOM | |
1005 | count by lines, and LEFT and RIGHT count by columns, all relative to 0, | |
1006 | 0 at top left corner of frame. | |
1007 | ||
1008 | RIGHT is one more than the rightmost column occupied by WINDOW. BOTTOM | |
1009 | is one more than the bottommost row occupied by WINDOW. The edges | |
1010 | include the space used by WINDOW's scroll bar, display margins, fringes, | |
1011 | header line, and/or mode line. For the edges of just the text area, use | |
1012 | `window-inside-edges'. */) | |
5842a27b | 1013 | (Lisp_Object window) |
7ab12479 | 1014 | { |
52162052 | 1015 | register struct window *w = decode_valid_window (window); |
7ab12479 | 1016 | |
1479c557 PE |
1017 | return list4i (WINDOW_LEFT_EDGE_COL (w), WINDOW_TOP_EDGE_LINE (w), |
1018 | WINDOW_RIGHT_EDGE_COL (w), WINDOW_BOTTOM_EDGE_LINE (w)); | |
7ab12479 JB |
1019 | } |
1020 | ||
c99a9eb3 RS |
1021 | DEFUN ("window-pixel-edges", Fwindow_pixel_edges, Swindow_pixel_edges, 0, 1, 0, |
1022 | doc: /* Return a list of the edge pixel coordinates of WINDOW. | |
52162052 MR |
1023 | WINDOW must be a valid window and defaults to the selected one. |
1024 | ||
1025 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1026 | 0, 0 at the top left corner of the frame. | |
b35ac83e CY |
1027 | |
1028 | RIGHT is one more than the rightmost x position occupied by WINDOW. | |
1029 | BOTTOM is one more than the bottommost y position occupied by WINDOW. | |
1030 | The pixel edges include the space used by WINDOW's scroll bar, display | |
1031 | margins, fringes, header line, and/or mode line. For the pixel edges | |
1032 | of just the text area, use `window-inside-pixel-edges'. */) | |
5842a27b | 1033 | (Lisp_Object window) |
c99a9eb3 | 1034 | { |
52162052 | 1035 | register struct window *w = decode_valid_window (window); |
c99a9eb3 | 1036 | |
1479c557 PE |
1037 | return list4i (WINDOW_LEFT_EDGE_X (w), WINDOW_TOP_EDGE_Y (w), |
1038 | WINDOW_RIGHT_EDGE_X (w), WINDOW_BOTTOM_EDGE_Y (w)); | |
c99a9eb3 RS |
1039 | } |
1040 | ||
9d5405ec | 1041 | static void |
5e617bc2 | 1042 | calc_absolute_offset (struct window *w, int *add_x, int *add_y) |
9d5405ec | 1043 | { |
d3d50620 | 1044 | struct frame *f = XFRAME (w->frame); |
9d5405ec J |
1045 | *add_y = f->top_pos; |
1046 | #ifdef FRAME_MENUBAR_HEIGHT | |
1047 | *add_y += FRAME_MENUBAR_HEIGHT (f); | |
1048 | #endif | |
bfeabdc3 JD |
1049 | #ifdef FRAME_TOOLBAR_TOP_HEIGHT |
1050 | *add_y += FRAME_TOOLBAR_TOP_HEIGHT (f); | |
66d13b20 | 1051 | #elif defined (FRAME_TOOLBAR_HEIGHT) |
9d5405ec J |
1052 | *add_y += FRAME_TOOLBAR_HEIGHT (f); |
1053 | #endif | |
1054 | #ifdef FRAME_NS_TITLEBAR_HEIGHT | |
1055 | *add_y += FRAME_NS_TITLEBAR_HEIGHT (f); | |
1056 | #endif | |
1057 | *add_x = f->left_pos; | |
bfeabdc3 JD |
1058 | #ifdef FRAME_TOOLBAR_LEFT_WIDTH |
1059 | *add_x += FRAME_TOOLBAR_LEFT_WIDTH (f); | |
1060 | #endif | |
9d5405ec J |
1061 | } |
1062 | ||
1063 | DEFUN ("window-absolute-pixel-edges", Fwindow_absolute_pixel_edges, | |
1064 | Swindow_absolute_pixel_edges, 0, 1, 0, | |
1065 | doc: /* Return a list of the edge pixel coordinates of WINDOW. | |
52162052 MR |
1066 | WINDOW must be a valid window and defaults to the selected one. |
1067 | ||
1068 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1069 | 0, 0 at the top left corner of the display. | |
9d5405ec J |
1070 | |
1071 | RIGHT is one more than the rightmost x position occupied by WINDOW. | |
1072 | BOTTOM is one more than the bottommost y position occupied by WINDOW. | |
1073 | The pixel edges include the space used by WINDOW's scroll bar, display | |
1074 | margins, fringes, header line, and/or mode line. For the pixel edges | |
c49d071a | 1075 | of just the text area, use `window-inside-absolute-pixel-edges'. */) |
5842a27b | 1076 | (Lisp_Object window) |
9d5405ec | 1077 | { |
52162052 | 1078 | register struct window *w = decode_valid_window (window); |
9d5405ec | 1079 | int add_x, add_y; |
89bc0592 | 1080 | |
ed3751c8 | 1081 | calc_absolute_offset (w, &add_x, &add_y); |
9d5405ec | 1082 | |
1479c557 PE |
1083 | return list4i (WINDOW_LEFT_EDGE_X (w) + add_x, |
1084 | WINDOW_TOP_EDGE_Y (w) + add_y, | |
1085 | WINDOW_RIGHT_EDGE_X (w) + add_x, | |
1086 | WINDOW_BOTTOM_EDGE_Y (w) + add_y); | |
9d5405ec J |
1087 | } |
1088 | ||
c99a9eb3 RS |
1089 | DEFUN ("window-inside-edges", Fwindow_inside_edges, Swindow_inside_edges, 0, 1, 0, |
1090 | doc: /* Return a list of the edge coordinates of WINDOW. | |
52162052 MR |
1091 | WINDOW must be a live window and defaults to the selected one. |
1092 | ||
1093 | The returned list has the form (LEFT TOP RIGHT BOTTOM). TOP and BOTTOM | |
1094 | count by lines, and LEFT and RIGHT count by columns, all relative to 0, | |
1095 | 0 at top left corner of frame. | |
b35ac83e CY |
1096 | |
1097 | RIGHT is one more than the rightmost column of WINDOW's text area. | |
52162052 MR |
1098 | BOTTOM is one more than the bottommost row of WINDOW's text area. The |
1099 | inside edges do not include the space used by the WINDOW's scroll bar, | |
1100 | display margins, fringes, header line, and/or mode line. */) | |
5842a27b | 1101 | (Lisp_Object window) |
c99a9eb3 | 1102 | { |
52162052 | 1103 | register struct window *w = decode_live_window (window); |
c99a9eb3 | 1104 | |
1479c557 PE |
1105 | return list4i ((WINDOW_BOX_LEFT_EDGE_COL (w) |
1106 | + WINDOW_LEFT_MARGIN_COLS (w) | |
1107 | + WINDOW_LEFT_FRINGE_COLS (w)), | |
1108 | (WINDOW_TOP_EDGE_LINE (w) | |
1109 | + WINDOW_HEADER_LINE_LINES (w)), | |
1110 | (WINDOW_BOX_RIGHT_EDGE_COL (w) | |
1111 | - WINDOW_RIGHT_MARGIN_COLS (w) | |
1112 | - WINDOW_RIGHT_FRINGE_COLS (w)), | |
1113 | (WINDOW_BOTTOM_EDGE_LINE (w) | |
1114 | - WINDOW_MODE_LINE_LINES (w))); | |
c99a9eb3 RS |
1115 | } |
1116 | ||
1117 | DEFUN ("window-inside-pixel-edges", Fwindow_inside_pixel_edges, Swindow_inside_pixel_edges, 0, 1, 0, | |
2fbdc249 | 1118 | doc: /* Return a list of the edge pixel coordinates of WINDOW's text area. |
52162052 MR |
1119 | WINDOW must be a live window and defaults to the selected one. |
1120 | ||
1121 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1122 | (0,0) at the top left corner of the frame's window area. | |
b35ac83e CY |
1123 | |
1124 | RIGHT is one more than the rightmost x position of WINDOW's text area. | |
1125 | BOTTOM is one more than the bottommost y position of WINDOW's text area. | |
1126 | The inside edges do not include the space used by WINDOW's scroll bar, | |
c99a9eb3 | 1127 | display margins, fringes, header line, and/or mode line. */) |
5842a27b | 1128 | (Lisp_Object window) |
c99a9eb3 | 1129 | { |
52162052 | 1130 | register struct window *w = decode_live_window (window); |
c99a9eb3 | 1131 | |
1479c557 PE |
1132 | return list4i ((WINDOW_BOX_LEFT_EDGE_X (w) |
1133 | + WINDOW_LEFT_MARGIN_WIDTH (w) | |
1134 | + WINDOW_LEFT_FRINGE_WIDTH (w)), | |
1135 | (WINDOW_TOP_EDGE_Y (w) | |
1136 | + WINDOW_HEADER_LINE_HEIGHT (w)), | |
1137 | (WINDOW_BOX_RIGHT_EDGE_X (w) | |
1138 | - WINDOW_RIGHT_MARGIN_WIDTH (w) | |
1139 | - WINDOW_RIGHT_FRINGE_WIDTH (w)), | |
1140 | (WINDOW_BOTTOM_EDGE_Y (w) | |
1141 | - WINDOW_MODE_LINE_HEIGHT (w))); | |
c99a9eb3 RS |
1142 | } |
1143 | ||
9d5405ec J |
1144 | DEFUN ("window-inside-absolute-pixel-edges", |
1145 | Fwindow_inside_absolute_pixel_edges, | |
1146 | Swindow_inside_absolute_pixel_edges, 0, 1, 0, | |
2fbdc249 | 1147 | doc: /* Return a list of the edge pixel coordinates of WINDOW's text area. |
52162052 MR |
1148 | WINDOW must be a live window and defaults to the selected one. |
1149 | ||
1150 | The returned list has the form (LEFT TOP RIGHT BOTTOM), all relative to | |
1151 | (0,0) at the top left corner of the frame's window area. | |
9d5405ec J |
1152 | |
1153 | RIGHT is one more than the rightmost x position of WINDOW's text area. | |
1154 | BOTTOM is one more than the bottommost y position of WINDOW's text area. | |
1155 | The inside edges do not include the space used by WINDOW's scroll bar, | |
1156 | display margins, fringes, header line, and/or mode line. */) | |
5842a27b | 1157 | (Lisp_Object window) |
9d5405ec | 1158 | { |
52162052 | 1159 | register struct window *w = decode_live_window (window); |
9d5405ec | 1160 | int add_x, add_y; |
89bc0592 | 1161 | |
ed3751c8 | 1162 | calc_absolute_offset (w, &add_x, &add_y); |
9d5405ec | 1163 | |
1479c557 PE |
1164 | return list4i ((WINDOW_BOX_LEFT_EDGE_X (w) |
1165 | + WINDOW_LEFT_MARGIN_WIDTH (w) | |
1166 | + WINDOW_LEFT_FRINGE_WIDTH (w) + add_x), | |
1167 | (WINDOW_TOP_EDGE_Y (w) | |
1168 | + WINDOW_HEADER_LINE_HEIGHT (w) + add_y), | |
1169 | (WINDOW_BOX_RIGHT_EDGE_X (w) | |
1170 | - WINDOW_RIGHT_MARGIN_WIDTH (w) | |
1171 | - WINDOW_RIGHT_FRINGE_WIDTH (w) + add_x), | |
1172 | (WINDOW_BOTTOM_EDGE_Y (w) | |
1173 | - WINDOW_MODE_LINE_HEIGHT (w) + add_y)); | |
9d5405ec J |
1174 | } |
1175 | ||
9173a8fb | 1176 | /* Test if the character at column X, row Y is within window W. |
341f3858 | 1177 | If it is not, return ON_NOTHING; |
880e6158 MR |
1178 | if it is on the window's vertical divider, return |
1179 | ON_RIGHT_DIVIDER; | |
1180 | if it is on the window's horizontal divider, return | |
1181 | ON_BOTTOM_DIVIDER; | |
9173a8fb | 1182 | if it is in the window's text area, return ON_TEXT; |
341f3858 | 1183 | if it is on the window's modeline, return ON_MODE_LINE; |
d5783c40 | 1184 | if it is on the border between the window and its right sibling, |
880e6158 MR |
1185 | return ON_VERTICAL_BORDER; |
1186 | if it is on a scroll bar, return ON_SCROLL_BAR; | |
341f3858 | 1187 | if it is on the window's top line, return ON_HEADER_LINE; |
81d189fd | 1188 | if it is in left or right fringe of the window, |
9173a8fb | 1189 | return ON_LEFT_FRINGE or ON_RIGHT_FRINGE; |
49b996e7 | 1190 | if it is in the marginal area to the left/right of the window, |
9173a8fb | 1191 | return ON_LEFT_MARGIN or ON_RIGHT_MARGIN. |
5500c422 GM |
1192 | |
1193 | X and Y are frame relative pixel coordinates. */ | |
1194 | ||
7442878f | 1195 | static enum window_part |
9173a8fb | 1196 | coordinates_in_window (register struct window *w, int x, int y) |
d5783c40 | 1197 | { |
b0228ace | 1198 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
7442878f | 1199 | enum window_part part; |
949cf20f | 1200 | int ux = FRAME_COLUMN_WIDTH (f); |
c7b08b0d MR |
1201 | int left_x = WINDOW_LEFT_EDGE_X (w); |
1202 | int right_x = WINDOW_RIGHT_EDGE_X (w); | |
1203 | int top_y = WINDOW_TOP_EDGE_Y (w); | |
1204 | int bottom_y = WINDOW_BOTTOM_EDGE_Y (w); | |
dad75588 GM |
1205 | /* The width of the area where the vertical line can be dragged. |
1206 | (Between mode lines for instance. */ | |
1207 | int grabbable_width = ux; | |
949cf20f | 1208 | int lmargin_width, rmargin_width, text_left, text_right; |
9173a8fb | 1209 | |
c7b08b0d MR |
1210 | /* Outside any interesting row or column? */ |
1211 | if (y < top_y || y >= bottom_y || x < left_x || x >= right_x) | |
9173a8fb | 1212 | return ON_NOTHING; |
b0228ace | 1213 | |
880e6158 MR |
1214 | /* On vertical window divider (which prevails horizontal |
1215 | dividers) ? */ | |
1216 | if (!WINDOW_RIGHTMOST_P (w) | |
1217 | && WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
1218 | && x >= right_x - WINDOW_RIGHT_DIVIDER_WIDTH (w) | |
1219 | && x <= right_x) | |
1220 | return ON_RIGHT_DIVIDER; | |
1221 | /* On the horizontal window divider? */ | |
1222 | else if (WINDOW_BOTTOM_DIVIDER_WIDTH (w) | |
1223 | && y >= (bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w)) | |
1224 | && y <= bottom_y) | |
1225 | return ON_BOTTOM_DIVIDER; | |
1226 | /* On the mode or header line? */ | |
1227 | else if ((WINDOW_WANTS_MODELINE_P (w) | |
1228 | && y >= (bottom_y | |
1229 | - CURRENT_MODE_LINE_HEIGHT (w) | |
1230 | - WINDOW_BOTTOM_DIVIDER_WIDTH (w)) | |
1231 | && y <= bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w) | |
1232 | && (part = ON_MODE_LINE)) | |
1233 | || (WINDOW_WANTS_HEADER_LINE_P (w) | |
1234 | && y < top_y + CURRENT_HEADER_LINE_HEIGHT (w) | |
1235 | && (part = ON_HEADER_LINE))) | |
c7b08b0d MR |
1236 | { |
1237 | /* If it's under/over the scroll bar portion of the mode/header | |
1238 | line, say it's on the vertical line. That's to be able to | |
1239 | resize windows horizontally in case we're using toolkit scroll | |
1240 | bars. Note: If scrollbars are on the left, the window that | |
1241 | must be eventually resized is that on the left of WINDOW. */ | |
1242 | if ((WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) | |
1243 | && !WINDOW_LEFTMOST_P (w) | |
1244 | && eabs (x - left_x) < grabbable_width) | |
1245 | || (!WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) | |
1246 | && !WINDOW_RIGHTMOST_P (w) | |
1247 | && eabs (x - right_x) < grabbable_width)) | |
1248 | return ON_VERTICAL_BORDER; | |
1249 | else | |
1250 | return part; | |
1251 | } | |
1252 | ||
466539bc EZ |
1253 | /* In what's below, we subtract 1 when computing right_x because we |
1254 | want the rightmost pixel, which is given by left_pixel+width-1. */ | |
5500c422 GM |
1255 | if (w->pseudo_window_p) |
1256 | { | |
1257 | left_x = 0; | |
880e6158 | 1258 | right_x = WINDOW_PIXEL_WIDTH (w) - 1; |
5500c422 GM |
1259 | } |
1260 | else | |
1261 | { | |
949cf20f KS |
1262 | left_x = WINDOW_BOX_LEFT_EDGE_X (w); |
1263 | right_x = WINDOW_BOX_RIGHT_EDGE_X (w) - 1; | |
5500c422 | 1264 | } |
37962e60 | 1265 | |
949cf20f | 1266 | /* Outside any interesting column? */ |
9173a8fb CY |
1267 | if (x < left_x || x > right_x) |
1268 | return ON_SCROLL_BAR; | |
949cf20f KS |
1269 | |
1270 | lmargin_width = window_box_width (w, LEFT_MARGIN_AREA); | |
1271 | rmargin_width = window_box_width (w, RIGHT_MARGIN_AREA); | |
79fd290e | 1272 | |
949cf20f KS |
1273 | text_left = window_box_left (w, TEXT_AREA); |
1274 | text_right = text_left + window_box_width (w, TEXT_AREA); | |
1275 | ||
1276 | if (FRAME_WINDOW_P (f)) | |
fbad6f9a | 1277 | { |
447e9da0 | 1278 | if (!w->pseudo_window_p |
949cf20f | 1279 | && !WINDOW_HAS_VERTICAL_SCROLL_BAR (w) |
447e9da0 | 1280 | && !WINDOW_RIGHTMOST_P (w) |
9173a8fb CY |
1281 | && (eabs (x - right_x) < grabbable_width)) |
1282 | return ON_VERTICAL_BORDER; | |
fbad6f9a | 1283 | } |
9173a8fb CY |
1284 | /* Need to say "x > right_x" rather than >=, since on character |
1285 | terminals, the vertical line's x coordinate is right_x. */ | |
1286 | else if (!w->pseudo_window_p | |
1287 | && !WINDOW_RIGHTMOST_P (w) | |
880e6158 MR |
1288 | /* Why check ux if we are not the rightmost window ? Also |
1289 | shouldn't a pseudo window always be rightmost ? */ | |
9173a8fb CY |
1290 | && x > right_x - ux) |
1291 | return ON_VERTICAL_BORDER; | |
1292 | ||
1293 | if (x < text_left) | |
949cf20f KS |
1294 | { |
1295 | if (lmargin_width > 0 | |
1296 | && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
9173a8fb CY |
1297 | ? (x >= left_x + WINDOW_LEFT_FRINGE_WIDTH (w)) |
1298 | : (x < left_x + lmargin_width))) | |
1299 | return ON_LEFT_MARGIN; | |
1300 | ||
949cf20f KS |
1301 | return ON_LEFT_FRINGE; |
1302 | } | |
1303 | ||
9173a8fb | 1304 | if (x >= text_right) |
949cf20f KS |
1305 | { |
1306 | if (rmargin_width > 0 | |
1307 | && (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) | |
9173a8fb CY |
1308 | ? (x < right_x - WINDOW_RIGHT_FRINGE_WIDTH (w)) |
1309 | : (x >= right_x - rmargin_width))) | |
1310 | return ON_RIGHT_MARGIN; | |
1311 | ||
949cf20f KS |
1312 | return ON_RIGHT_FRINGE; |
1313 | } | |
1314 | ||
1315 | /* Everything special ruled out - must be on text area */ | |
949cf20f | 1316 | return ON_TEXT; |
d5783c40 JB |
1317 | } |
1318 | ||
9173a8fb CY |
1319 | /* Take X is the frame-relative pixel x-coordinate, and return the |
1320 | x-coordinate relative to part PART of window W. */ | |
1321 | int | |
1322 | window_relative_x_coord (struct window *w, enum window_part part, int x) | |
1323 | { | |
1324 | int left_x = (w->pseudo_window_p) ? 0 : WINDOW_BOX_LEFT_EDGE_X (w); | |
1325 | ||
1326 | switch (part) | |
1327 | { | |
1328 | case ON_TEXT: | |
1329 | return x - window_box_left (w, TEXT_AREA); | |
1330 | ||
1331 | case ON_LEFT_FRINGE: | |
1332 | return x - left_x; | |
1333 | ||
1334 | case ON_RIGHT_FRINGE: | |
1335 | return x - left_x - WINDOW_LEFT_FRINGE_WIDTH (w); | |
1336 | ||
1337 | case ON_LEFT_MARGIN: | |
1338 | return (x - left_x | |
1339 | - ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)) | |
1340 | ? WINDOW_LEFT_FRINGE_WIDTH (w) : 0)); | |
1341 | ||
1342 | case ON_RIGHT_MARGIN: | |
1343 | return (x + 1 | |
1344 | - ((w->pseudo_window_p) | |
880e6158 | 1345 | ? WINDOW_PIXEL_WIDTH (w) |
9173a8fb CY |
1346 | : WINDOW_BOX_RIGHT_EDGE_X (w)) |
1347 | + window_box_width (w, RIGHT_MARGIN_AREA) | |
1348 | + ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)) | |
1349 | ? WINDOW_RIGHT_FRINGE_WIDTH (w) : 0)); | |
1350 | } | |
1351 | ||
1352 | /* ON_SCROLL_BAR, ON_NOTHING, and ON_VERTICAL_BORDER: */ | |
1353 | return 0; | |
1354 | } | |
1355 | ||
b0228ace | 1356 | |
d5783c40 | 1357 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, |
fdb82f93 PJ |
1358 | Scoordinates_in_window_p, 2, 2, 0, |
1359 | doc: /* Return non-nil if COORDINATES are in WINDOW. | |
52162052 | 1360 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 PJ |
1361 | COORDINATES is a cons of the form (X . Y), X and Y being distances |
1362 | measured in characters from the upper-left corner of the frame. | |
23fe745a | 1363 | \(0 . 0) denotes the character in the upper left corner of the |
fdb82f93 PJ |
1364 | frame. |
1365 | If COORDINATES are in the text portion of WINDOW, | |
1366 | the coordinates relative to the window are returned. | |
1367 | If they are in the mode line of WINDOW, `mode-line' is returned. | |
1368 | If they are in the top mode line of WINDOW, `header-line' is returned. | |
81d189fd KS |
1369 | If they are in the left fringe of WINDOW, `left-fringe' is returned. |
1370 | If they are in the right fringe of WINDOW, `right-fringe' is returned. | |
fdb82f93 | 1371 | If they are on the border between WINDOW and its right sibling, |
49b996e7 GM |
1372 | `vertical-line' is returned. |
1373 | If they are in the windows's left or right marginal areas, `left-margin'\n\ | |
1374 | or `right-margin' is returned. */) | |
5842a27b | 1375 | (register Lisp_Object coordinates, Lisp_Object window) |
d5783c40 | 1376 | { |
5500c422 GM |
1377 | struct window *w; |
1378 | struct frame *f; | |
d5783c40 | 1379 | int x, y; |
5500c422 | 1380 | Lisp_Object lx, ly; |
d5783c40 | 1381 | |
52162052 | 1382 | w = decode_live_window (window); |
d3d50620 | 1383 | f = XFRAME (w->frame); |
b7826503 | 1384 | CHECK_CONS (coordinates); |
5500c422 GM |
1385 | lx = Fcar (coordinates); |
1386 | ly = Fcdr (coordinates); | |
b7826503 PJ |
1387 | CHECK_NUMBER_OR_FLOAT (lx); |
1388 | CHECK_NUMBER_OR_FLOAT (ly); | |
81159bb9 RS |
1389 | x = FRAME_PIXEL_X_FROM_CANON_X (f, lx) + FRAME_INTERNAL_BORDER_WIDTH (f); |
1390 | y = FRAME_PIXEL_Y_FROM_CANON_Y (f, ly) + FRAME_INTERNAL_BORDER_WIDTH (f); | |
5500c422 | 1391 | |
9173a8fb | 1392 | switch (coordinates_in_window (w, x, y)) |
d5783c40 | 1393 | { |
7442878f | 1394 | case ON_NOTHING: |
d5783c40 JB |
1395 | return Qnil; |
1396 | ||
7442878f | 1397 | case ON_TEXT: |
9173a8fb CY |
1398 | /* Convert X and Y to window relative pixel coordinates, and |
1399 | return the canonical char units. */ | |
1400 | x -= window_box_left (w, TEXT_AREA); | |
1401 | y -= WINDOW_TOP_EDGE_Y (w); | |
949cf20f KS |
1402 | return Fcons (FRAME_CANON_X_FROM_PIXEL_X (f, x), |
1403 | FRAME_CANON_Y_FROM_PIXEL_Y (f, y)); | |
d5783c40 | 1404 | |
7442878f | 1405 | case ON_MODE_LINE: |
d5783c40 | 1406 | return Qmode_line; |
37962e60 | 1407 | |
7442878f | 1408 | case ON_VERTICAL_BORDER: |
e5d77022 | 1409 | return Qvertical_line; |
d5783c40 | 1410 | |
7442878f | 1411 | case ON_HEADER_LINE: |
045dee35 | 1412 | return Qheader_line; |
5500c422 | 1413 | |
7442878f GM |
1414 | case ON_LEFT_FRINGE: |
1415 | return Qleft_fringe; | |
177c0ea7 | 1416 | |
7442878f GM |
1417 | case ON_RIGHT_FRINGE: |
1418 | return Qright_fringe; | |
fbad6f9a | 1419 | |
49b996e7 GM |
1420 | case ON_LEFT_MARGIN: |
1421 | return Qleft_margin; | |
177c0ea7 | 1422 | |
49b996e7 GM |
1423 | case ON_RIGHT_MARGIN: |
1424 | return Qright_margin; | |
1425 | ||
6487f669 RS |
1426 | case ON_SCROLL_BAR: |
1427 | /* Historically we are supposed to return nil in this case. */ | |
1428 | return Qnil; | |
1429 | ||
880e6158 MR |
1430 | case ON_RIGHT_DIVIDER: |
1431 | return Qright_divider; | |
1432 | ||
1433 | case ON_BOTTOM_DIVIDER: | |
1434 | return Qbottom_divider; | |
1435 | ||
d5783c40 | 1436 | default: |
1088b922 | 1437 | emacs_abort (); |
d5783c40 JB |
1438 | } |
1439 | } | |
1440 | ||
67492200 GM |
1441 | |
1442 | /* Callback for foreach_window, used in window_from_coordinates. | |
f95464e4 GM |
1443 | Check if window W contains coordinates specified by USER_DATA which |
1444 | is actually a pointer to a struct check_window_data CW. | |
1445 | ||
1446 | Check if window W contains coordinates *CW->x and *CW->y. If it | |
1447 | does, return W in *CW->window, as Lisp_Object, and return in | |
5372262f | 1448 | *CW->part the part of the window under coordinates *X,*Y. Return |
f95464e4 GM |
1449 | zero from this function to stop iterating over windows. */ |
1450 | ||
1451 | struct check_window_data | |
1452 | { | |
1453 | Lisp_Object *window; | |
9173a8fb | 1454 | int x, y; |
341f3858 | 1455 | enum window_part *part; |
f95464e4 | 1456 | }; |
67492200 GM |
1457 | |
1458 | static int | |
971de7fb | 1459 | check_window_containing (struct window *w, void *user_data) |
67492200 | 1460 | { |
7d652d97 | 1461 | struct check_window_data *cw = user_data; |
7442878f GM |
1462 | enum window_part found; |
1463 | int continue_p = 1; | |
67492200 | 1464 | |
f95464e4 | 1465 | found = coordinates_in_window (w, cw->x, cw->y); |
7442878f | 1466 | if (found != ON_NOTHING) |
67492200 | 1467 | { |
341f3858 | 1468 | *cw->part = found; |
f95464e4 | 1469 | XSETWINDOW (*cw->window, w); |
7442878f | 1470 | continue_p = 0; |
67492200 | 1471 | } |
177c0ea7 | 1472 | |
7442878f | 1473 | return continue_p; |
67492200 GM |
1474 | } |
1475 | ||
1476 | ||
5500c422 | 1477 | /* Find the window containing frame-relative pixel position X/Y and |
949cf20f KS |
1478 | return it as a Lisp_Object. |
1479 | ||
1480 | If X, Y is on one of the window's special `window_part' elements, | |
9173a8fb | 1481 | set *PART to the id of that element. |
949cf20f | 1482 | |
341f3858 | 1483 | If there is no window under X, Y return nil and leave *PART |
67492200 GM |
1484 | unmodified. TOOL_BAR_P non-zero means detect tool-bar windows. |
1485 | ||
1486 | This function was previously implemented with a loop cycling over | |
1487 | windows with Fnext_window, and starting with the frame's selected | |
1488 | window. It turned out that this doesn't work with an | |
1489 | implementation of next_window using Vwindow_list, because | |
1490 | FRAME_SELECTED_WINDOW (F) is not always contained in the window | |
1491 | tree of F when this function is called asynchronously from | |
1492 | note_mouse_highlight. The original loop didn't terminate in this | |
1493 | case. */ | |
5500c422 | 1494 | |
7ab12479 | 1495 | Lisp_Object |
9173a8fb | 1496 | window_from_coordinates (struct frame *f, int x, int y, |
748fa866 | 1497 | enum window_part *part, bool tool_bar_p) |
7ab12479 | 1498 | { |
67492200 | 1499 | Lisp_Object window; |
f95464e4 | 1500 | struct check_window_data cw; |
341f3858 KS |
1501 | enum window_part dummy; |
1502 | ||
1503 | if (part == 0) | |
1504 | part = &dummy; | |
5500c422 | 1505 | |
67492200 | 1506 | window = Qnil; |
9173a8fb | 1507 | cw.window = &window, cw.x = x, cw.y = y; cw.part = part; |
f95464e4 | 1508 | foreach_window (f, check_window_containing, &cw); |
177c0ea7 | 1509 | |
742516e0 | 1510 | #if defined (HAVE_WINDOW_SYSTEM) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
67492200 GM |
1511 | /* If not found above, see if it's in the tool bar window, if a tool |
1512 | bar exists. */ | |
1513 | if (NILP (window) | |
1514 | && tool_bar_p | |
e69b0960 DA |
1515 | && WINDOWP (f->tool_bar_window) |
1516 | && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)) > 0 | |
1517 | && (coordinates_in_window (XWINDOW (f->tool_bar_window), x, y) | |
7442878f | 1518 | != ON_NOTHING)) |
5500c422 | 1519 | { |
341f3858 | 1520 | *part = ON_TEXT; |
e69b0960 | 1521 | window = f->tool_bar_window; |
5500c422 | 1522 | } |
742516e0 | 1523 | #endif |
37962e60 | 1524 | |
67492200 | 1525 | return window; |
7ab12479 JB |
1526 | } |
1527 | ||
ab17c3f2 | 1528 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
fdb82f93 | 1529 | doc: /* Return window containing coordinates X and Y on FRAME. |
496e208e | 1530 | FRAME must be a live frame and defaults to the selected one. |
fdb82f93 PJ |
1531 | The top left corner of the frame is considered to be row 0, |
1532 | column 0. */) | |
5842a27b | 1533 | (Lisp_Object x, Lisp_Object y, Lisp_Object frame) |
7ab12479 | 1534 | { |
d9f07150 | 1535 | struct frame *f = decode_live_frame (frame); |
7ab12479 | 1536 | |
5500c422 | 1537 | /* Check that arguments are integers or floats. */ |
b7826503 PJ |
1538 | CHECK_NUMBER_OR_FLOAT (x); |
1539 | CHECK_NUMBER_OR_FLOAT (y); | |
5500c422 | 1540 | |
177c0ea7 | 1541 | return window_from_coordinates (f, |
2c77cf3b RS |
1542 | (FRAME_PIXEL_X_FROM_CANON_X (f, x) |
1543 | + FRAME_INTERNAL_BORDER_WIDTH (f)), | |
1544 | (FRAME_PIXEL_Y_FROM_CANON_Y (f, y) | |
1545 | + FRAME_INTERNAL_BORDER_WIDTH (f)), | |
9173a8fb | 1546 | 0, 0); |
7ab12479 JB |
1547 | } |
1548 | ||
1549 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
fdb82f93 | 1550 | doc: /* Return current value of point in WINDOW. |
496e208e | 1551 | WINDOW must be a live window and defaults to the selected one. |
c85322d0 | 1552 | |
5481664a MR |
1553 | For a nonselected window, this is the value point would have if that |
1554 | window were selected. | |
1555 | ||
1556 | Note that, when WINDOW is selected, the value returned is the same as | |
1557 | that returned by `point' for WINDOW's buffer. It would be more strictly | |
9fc9a531 | 1558 | correct to return the top-level value of `point', outside of any |
5481664a | 1559 | `save-excursion' forms. But that is hard to define. */) |
5842a27b | 1560 | (Lisp_Object window) |
7ab12479 | 1561 | { |
52162052 | 1562 | register struct window *w = decode_live_window (window); |
7ab12479 | 1563 | |
5481664a | 1564 | if (w == XWINDOW (selected_window)) |
e74aeda8 | 1565 | return make_number (BUF_PT (XBUFFER (w->contents))); |
5481664a MR |
1566 | else |
1567 | return Fmarker_position (w->pointm); | |
7ab12479 JB |
1568 | } |
1569 | ||
1570 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
fdb82f93 | 1571 | doc: /* Return position at which display currently starts in WINDOW. |
496e208e | 1572 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 | 1573 | This is updated by redisplay or by calling `set-window-start'. */) |
5842a27b | 1574 | (Lisp_Object window) |
7ab12479 | 1575 | { |
52162052 | 1576 | return Fmarker_position (decode_live_window (window)->start); |
7ab12479 JB |
1577 | } |
1578 | ||
8646118f RS |
1579 | /* This is text temporarily removed from the doc string below. |
1580 | ||
fdb82f93 PJ |
1581 | This function returns nil if the position is not currently known. |
1582 | That happens when redisplay is preempted and doesn't finish. | |
1583 | If in that case you want to compute where the end of the window would | |
1584 | have been if redisplay had finished, do this: | |
1585 | (save-excursion | |
1586 | (goto-char (window-start window)) | |
1587 | (vertical-motion (1- (window-height window)) window) | |
8646118f RS |
1588 | (point))") */ |
1589 | ||
478292ed | 1590 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 2, 0, |
fdb82f93 | 1591 | doc: /* Return position at which display currently ends in WINDOW. |
496e208e | 1592 | WINDOW must be a live window and defaults to the selected one. |
fdb82f93 PJ |
1593 | This is updated by redisplay, when it runs to completion. |
1594 | Simply changing the buffer text or setting `window-start' | |
1595 | does not update this value. | |
87e68db4 | 1596 | Return nil if there is no recorded value. (This can happen if the |
a0a37a6f | 1597 | last redisplay of WINDOW was preempted, and did not finish.) |
fdb82f93 PJ |
1598 | If UPDATE is non-nil, compute the up-to-date position |
1599 | if it isn't already recorded. */) | |
5842a27b | 1600 | (Lisp_Object window, Lisp_Object update) |
7ab12479 JB |
1601 | { |
1602 | Lisp_Object value; | |
52162052 | 1603 | struct window *w = decode_live_window (window); |
5a41ab94 | 1604 | Lisp_Object buf; |
31790df3 | 1605 | struct buffer *b; |
5a41ab94 | 1606 | |
e74aeda8 | 1607 | buf = w->contents; |
b7826503 | 1608 | CHECK_BUFFER (buf); |
b3a10345 | 1609 | b = XBUFFER (buf); |
5a41ab94 | 1610 | |
478292ed | 1611 | if (! NILP (update) |
fcc1fe85 EZ |
1612 | && (windows_or_buffers_changed |
1613 | || !w->window_end_valid | |
1614 | || b->clip_changed | |
1615 | || b->prevent_redisplay_optimizations_p | |
170da1ec | 1616 | || window_outdated (w)) |
41791a20 | 1617 | && !noninteractive) |
478292ed | 1618 | { |
cbc099e5 GM |
1619 | struct text_pos startp; |
1620 | struct it it; | |
b3a10345 | 1621 | struct buffer *old_buffer = NULL; |
57b3e30b | 1622 | void *itdata = NULL; |
b3a10345 KS |
1623 | |
1624 | /* Cannot use Fvertical_motion because that function doesn't | |
1625 | cope with variable-height lines. */ | |
1626 | if (b != current_buffer) | |
1627 | { | |
1628 | old_buffer = current_buffer; | |
1629 | set_buffer_internal (b); | |
1630 | } | |
2d6d9df0 GM |
1631 | |
1632 | /* In case W->start is out of the range, use something | |
cb795ec4 | 1633 | reasonable. This situation occurred when loading a file with |
2d6d9df0 GM |
1634 | `-l' containing a call to `rmail' with subsequent other |
1635 | commands. At the end, W->start happened to be BEG, while | |
cbc099e5 | 1636 | rmail had already narrowed the buffer. */ |
cf91889a | 1637 | CLIP_TEXT_POS_FROM_MARKER (startp, w->start); |
cbc099e5 | 1638 | |
57b3e30b | 1639 | itdata = bidi_shelve_cache (); |
cbc099e5 GM |
1640 | start_display (&it, w, startp); |
1641 | move_it_vertically (&it, window_box_height (w)); | |
c3c45f65 GM |
1642 | if (it.current_y < it.last_visible_y) |
1643 | move_it_past_eol (&it); | |
cbc099e5 | 1644 | value = make_number (IT_CHARPOS (it)); |
35928349 | 1645 | bidi_unshelve_cache (itdata, 0); |
177c0ea7 | 1646 | |
99593a9d GM |
1647 | if (old_buffer) |
1648 | set_buffer_internal (old_buffer); | |
478292ed RS |
1649 | } |
1650 | else | |
02455cb6 | 1651 | XSETINT (value, BUF_Z (b) - w->window_end_pos); |
7ab12479 JB |
1652 | |
1653 | return value; | |
1654 | } | |
1655 | ||
a7ca3326 | 1656 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, |
a0a37a6f | 1657 | doc: /* Make point value in WINDOW be at position POS in WINDOW's buffer. |
52162052 | 1658 | WINDOW must be a live window and defaults to the selected one. |
a0a37a6f | 1659 | Return POS. */) |
5842a27b | 1660 | (Lisp_Object window, Lisp_Object pos) |
7ab12479 | 1661 | { |
52162052 | 1662 | register struct window *w = decode_live_window (window); |
7ab12479 | 1663 | |
f74de345 | 1664 | /* Type of POS is checked by Fgoto_char or set_marker_restricted ... */ |
799417bd | 1665 | |
5481664a MR |
1666 | if (w == XWINDOW (selected_window)) |
1667 | { | |
e74aeda8 | 1668 | if (XBUFFER (w->contents) == current_buffer) |
5481664a MR |
1669 | Fgoto_char (pos); |
1670 | else | |
1671 | { | |
1672 | struct buffer *old_buffer = current_buffer; | |
1673 | ||
f74de345 DA |
1674 | /* ... but here we want to catch type error before buffer change. */ |
1675 | CHECK_NUMBER_COERCE_MARKER (pos); | |
e74aeda8 | 1676 | set_buffer_internal (XBUFFER (w->contents)); |
5481664a MR |
1677 | Fgoto_char (pos); |
1678 | set_buffer_internal (old_buffer); | |
1679 | } | |
1680 | } | |
1681 | else | |
1682 | { | |
e74aeda8 | 1683 | set_marker_restricted (w->pointm, pos, w->contents); |
5481664a MR |
1684 | /* We have to make sure that redisplay updates the window to show |
1685 | the new value of point. */ | |
94ae2ad4 | 1686 | windows_or_buffers_changed = 25; |
5481664a | 1687 | } |
177c0ea7 | 1688 | |
7ab12479 JB |
1689 | return pos; |
1690 | } | |
1691 | ||
1692 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
fdb82f93 | 1693 | doc: /* Make display in WINDOW start at position POS in WINDOW's buffer. |
52162052 MR |
1694 | WINDOW must be a live window and defaults to the selected one. Return |
1695 | POS. Optional third arg NOFORCE non-nil inhibits next redisplay from | |
d653c8cc | 1696 | overriding motion of point in order to display at this exact start. */) |
5842a27b | 1697 | (Lisp_Object window, Lisp_Object pos, Lisp_Object noforce) |
7ab12479 | 1698 | { |
52162052 | 1699 | register struct window *w = decode_live_window (window); |
7ab12479 | 1700 | |
e74aeda8 | 1701 | set_marker_restricted (w->start, pos, w->contents); |
f74de345 | 1702 | /* This is not right, but much easier than doing what is right. */ |
c98ff5dd | 1703 | w->start_at_line_beg = 0; |
265a9e55 | 1704 | if (NILP (noforce)) |
c98ff5dd DA |
1705 | w->force_start = 1; |
1706 | w->update_mode_line = 1; | |
72fdd473 MR |
1707 | /* Bug#15957. */ |
1708 | w->window_end_valid = 0; | |
ae966a86 | 1709 | if (w != XWINDOW (selected_window)) |
655ab9a3 | 1710 | wset_redisplay (w); |
ce7fae7d | 1711 | |
7ab12479 JB |
1712 | return pos; |
1713 | } | |
1714 | ||
496e208e MR |
1715 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, |
1716 | Spos_visible_in_window_p, 0, 3, 0, | |
1717 | doc: /* Return non-nil if position POS is currently on the frame in WINDOW. | |
52162052 MR |
1718 | WINDOW must be a live window and defaults to the selected one. |
1719 | ||
1720 | Return nil if that position is scrolled vertically out of view. If a | |
1721 | character is only partially visible, nil is returned, unless the | |
1722 | optional argument PARTIALLY is non-nil. If POS is only out of view | |
1723 | because of horizontal scrolling, return non-nil. If POS is t, it | |
1724 | specifies the position of the last visible glyph in WINDOW. POS | |
1725 | defaults to point in WINDOW; WINDOW defaults to the selected window. | |
496e208e MR |
1726 | |
1727 | If POS is visible, return t if PARTIALLY is nil; if PARTIALLY is non-nil, | |
ba59bd80 | 1728 | the return value is a list of 2 or 6 elements (X Y [RTOP RBOT ROWH VPOS]), |
496e208e MR |
1729 | where X and Y are the pixel coordinates relative to the top left corner |
1730 | of the window. The remaining elements are omitted if the character after | |
1731 | POS is fully visible; otherwise, RTOP and RBOT are the number of pixels | |
ba59bd80 EZ |
1732 | off-window at the top and bottom of the screen line ("row") containing |
1733 | POS, ROWH is the visible height of that row, and VPOS is the row number | |
1734 | \(zero-based). */) | |
496e208e MR |
1735 | (Lisp_Object pos, Lisp_Object window, Lisp_Object partially) |
1736 | { | |
1737 | register struct window *w; | |
1738 | register EMACS_INT posint; | |
1739 | register struct buffer *buf; | |
1740 | struct text_pos top; | |
1741 | Lisp_Object in_window = Qnil; | |
1742 | int rtop, rbot, rowh, vpos, fully_p = 1; | |
1743 | int x, y; | |
1744 | ||
52162052 | 1745 | w = decode_live_window (window); |
e74aeda8 | 1746 | buf = XBUFFER (w->contents); |
d3d50620 | 1747 | SET_TEXT_POS_FROM_MARKER (top, w->start); |
496e208e MR |
1748 | |
1749 | if (EQ (pos, Qt)) | |
1750 | posint = -1; | |
1751 | else if (!NILP (pos)) | |
1752 | { | |
1753 | CHECK_NUMBER_COERCE_MARKER (pos); | |
1754 | posint = XINT (pos); | |
1755 | } | |
1756 | else if (w == XWINDOW (selected_window)) | |
1757 | posint = PT; | |
1758 | else | |
4c1acb95 | 1759 | posint = marker_position (w->pointm); |
496e208e MR |
1760 | |
1761 | /* If position is above window start or outside buffer boundaries, | |
1762 | or if window start is out of range, position is not visible. */ | |
1763 | if ((EQ (pos, Qt) | |
1764 | || (posint >= CHARPOS (top) && posint <= BUF_ZV (buf))) | |
1765 | && CHARPOS (top) >= BUF_BEGV (buf) | |
1766 | && CHARPOS (top) <= BUF_ZV (buf) | |
1767 | && pos_visible_p (w, posint, &x, &y, &rtop, &rbot, &rowh, &vpos) | |
1768 | && (fully_p = !rtop && !rbot, (!NILP (partially) || fully_p))) | |
1769 | in_window = Qt; | |
1770 | ||
1771 | if (!NILP (in_window) && !NILP (partially)) | |
1772 | { | |
1773 | Lisp_Object part = Qnil; | |
1774 | if (!fully_p) | |
1479c557 | 1775 | part = list4i (rtop, rbot, rowh, vpos); |
496e208e MR |
1776 | in_window = Fcons (make_number (x), |
1777 | Fcons (make_number (y), part)); | |
1778 | } | |
1779 | ||
1780 | return in_window; | |
1781 | } | |
1782 | ||
1783 | DEFUN ("window-line-height", Fwindow_line_height, | |
1784 | Swindow_line_height, 0, 2, 0, | |
1785 | doc: /* Return height in pixels of text line LINE in window WINDOW. | |
52162052 | 1786 | WINDOW must be a live window and defaults to the selected one. |
496e208e MR |
1787 | |
1788 | Return height of current line if LINE is omitted or nil. Return height of | |
1789 | header or mode line if LINE is `header-line' or `mode-line'. | |
1790 | Otherwise, LINE is a text line number starting from 0. A negative number | |
1791 | counts from the end of the window. | |
1792 | ||
1793 | Value is a list (HEIGHT VPOS YPOS OFFBOT), where HEIGHT is the height | |
1794 | in pixels of the visible part of the line, VPOS and YPOS are the | |
1795 | vertical position in lines and pixels of the line, relative to the top | |
1796 | of the first text line, and OFFBOT is the number of off-window pixels at | |
1797 | the bottom of the text line. If there are off-window pixels at the top | |
1798 | of the (first) text line, YPOS is negative. | |
1799 | ||
1800 | Return nil if window display is not up-to-date. In that case, use | |
1801 | `pos-visible-in-window-p' to obtain the information. */) | |
1802 | (Lisp_Object line, Lisp_Object window) | |
1803 | { | |
1804 | register struct window *w; | |
1805 | register struct buffer *b; | |
1806 | struct glyph_row *row, *end_row; | |
d311d28c PE |
1807 | int max_y, crop, i; |
1808 | EMACS_INT n; | |
496e208e | 1809 | |
52162052 | 1810 | w = decode_live_window (window); |
496e208e MR |
1811 | |
1812 | if (noninteractive || w->pseudo_window_p) | |
1813 | return Qnil; | |
1814 | ||
e74aeda8 DA |
1815 | CHECK_BUFFER (w->contents); |
1816 | b = XBUFFER (w->contents); | |
496e208e MR |
1817 | |
1818 | /* Fail if current matrix is not up-to-date. */ | |
9d93ce29 | 1819 | if (!w->window_end_valid |
fcc1fe85 EZ |
1820 | || windows_or_buffers_changed |
1821 | || b->clip_changed | |
1822 | || b->prevent_redisplay_optimizations_p | |
170da1ec | 1823 | || window_outdated (w)) |
496e208e MR |
1824 | return Qnil; |
1825 | ||
1826 | if (NILP (line)) | |
1827 | { | |
1828 | i = w->cursor.vpos; | |
1829 | if (i < 0 || i >= w->current_matrix->nrows | |
1830 | || (row = MATRIX_ROW (w->current_matrix, i), !row->enabled_p)) | |
1831 | return Qnil; | |
1832 | max_y = window_text_bottom_y (w); | |
1833 | goto found_row; | |
1834 | } | |
1835 | ||
1836 | if (EQ (line, Qheader_line)) | |
1837 | { | |
1838 | if (!WINDOW_WANTS_HEADER_LINE_P (w)) | |
1839 | return Qnil; | |
1840 | row = MATRIX_HEADER_LINE_ROW (w->current_matrix); | |
1479c557 | 1841 | return row->enabled_p ? list4i (row->height, 0, 0, 0) : Qnil; |
496e208e MR |
1842 | } |
1843 | ||
1844 | if (EQ (line, Qmode_line)) | |
1845 | { | |
1846 | row = MATRIX_MODE_LINE_ROW (w->current_matrix); | |
89bc0592 | 1847 | return (row->enabled_p ? |
1479c557 PE |
1848 | list4i (row->height, |
1849 | 0, /* not accurate */ | |
1850 | (WINDOW_HEADER_LINE_HEIGHT (w) | |
1851 | + window_text_bottom_y (w)), | |
1852 | 0) | |
89bc0592 | 1853 | : Qnil); |
496e208e MR |
1854 | } |
1855 | ||
1856 | CHECK_NUMBER (line); | |
1857 | n = XINT (line); | |
1858 | ||
1859 | row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); | |
1860 | end_row = MATRIX_BOTTOM_TEXT_ROW (w->current_matrix, w); | |
1861 | max_y = window_text_bottom_y (w); | |
1862 | i = 0; | |
1863 | ||
1864 | while ((n < 0 || i < n) | |
1865 | && row <= end_row && row->enabled_p | |
1866 | && row->y + row->height < max_y) | |
1867 | row++, i++; | |
1868 | ||
1869 | if (row > end_row || !row->enabled_p) | |
1870 | return Qnil; | |
1871 | ||
1872 | if (++n < 0) | |
1873 | { | |
1874 | if (-n > i) | |
1875 | return Qnil; | |
1876 | row += n; | |
1877 | i += n; | |
1878 | } | |
1879 | ||
1880 | found_row: | |
1881 | crop = max (0, (row->y + row->height) - max_y); | |
1479c557 | 1882 | return list4i (row->height + min (0, row->y) - crop, i, row->y, crop); |
496e208e | 1883 | } |
d653c8cc | 1884 | |
a7ca3326 | 1885 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, |
d653c8cc MR |
1886 | 0, 1, 0, |
1887 | doc: /* Return non-nil when WINDOW is dedicated to its buffer. | |
12bb3111 | 1888 | More precisely, return the value assigned by the last call of |
7bfac547 MR |
1889 | `set-window-dedicated-p' for WINDOW. Return nil if that function was |
1890 | never called with WINDOW as its argument, or the value set by that | |
52162052 MR |
1891 | function was internally reset since its last call. WINDOW must be a |
1892 | live window and defaults to the selected one. | |
7bfac547 MR |
1893 | |
1894 | When a window is dedicated to its buffer, `display-buffer' will refrain | |
1895 | from displaying another buffer in it. `get-lru-window' and | |
1896 | `get-largest-window' treat dedicated windows specially. | |
1897 | `delete-windows-on', `replace-buffer-in-windows', `quit-window' and | |
1898 | `kill-buffer' can delete a dedicated window and the containing frame. | |
1899 | ||
1900 | Functions like `set-window-buffer' may change the buffer displayed by a | |
1901 | window, unless that window is "strongly" dedicated to its buffer, that | |
1902 | is the value returned by `window-dedicated-p' is t. */) | |
5842a27b | 1903 | (Lisp_Object window) |
7ab12479 | 1904 | { |
52162052 | 1905 | return decode_live_window (window)->dedicated; |
7ab12479 JB |
1906 | } |
1907 | ||
d207b766 RS |
1908 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
1909 | Sset_window_dedicated_p, 2, 2, 0, | |
d653c8cc | 1910 | doc: /* Mark WINDOW as dedicated according to FLAG. |
496e208e MR |
1911 | WINDOW must be a live window and defaults to the selected one. FLAG |
1912 | non-nil means mark WINDOW as dedicated to its buffer. FLAG nil means | |
1913 | mark WINDOW as non-dedicated. Return FLAG. | |
d653c8cc | 1914 | |
7bfac547 MR |
1915 | When a window is dedicated to its buffer, `display-buffer' will refrain |
1916 | from displaying another buffer in it. `get-lru-window' and | |
1917 | `get-largest-window' treat dedicated windows specially. | |
496e208e MR |
1918 | `delete-windows-on', `replace-buffer-in-windows', `quit-window', |
1919 | `quit-restore-window' and `kill-buffer' can delete a dedicated window | |
1920 | and the containing frame. | |
7bfac547 MR |
1921 | |
1922 | As a special case, if FLAG is t, mark WINDOW as "strongly" dedicated to | |
1923 | its buffer. Functions like `set-window-buffer' may change the buffer | |
1924 | displayed by a window, unless that window is strongly dedicated to its | |
1925 | buffer. If and when `set-window-buffer' displays another buffer in a | |
496e208e | 1926 | window, it also makes sure that the window is no more dedicated. */) |
5842a27b | 1927 | (Lisp_Object window, Lisp_Object flag) |
7ab12479 | 1928 | { |
e8c17b81 PE |
1929 | wset_dedicated (decode_live_window (window), flag); |
1930 | return flag; | |
7ab12479 JB |
1931 | } |
1932 | ||
496e208e MR |
1933 | DEFUN ("window-prev-buffers", Fwindow_prev_buffers, Swindow_prev_buffers, |
1934 | 0, 1, 0, | |
1935 | doc: /* Return buffers previously shown in WINDOW. | |
1936 | WINDOW must be a live window and defaults to the selected one. | |
1937 | ||
94e0933e CY |
1938 | The return value is a list of elements (BUFFER WINDOW-START POS), |
1939 | where BUFFER is a buffer, WINDOW-START is the start position of the | |
1940 | window for that buffer, and POS is a window-specific point value. */) | |
496e208e MR |
1941 | (Lisp_Object window) |
1942 | { | |
52162052 | 1943 | return decode_live_window (window)->prev_buffers; |
496e208e MR |
1944 | } |
1945 | ||
1946 | DEFUN ("set-window-prev-buffers", Fset_window_prev_buffers, | |
1947 | Sset_window_prev_buffers, 2, 2, 0, | |
1948 | doc: /* Set WINDOW's previous buffers to PREV-BUFFERS. | |
94e0933e | 1949 | WINDOW must be a live window and defaults to the selected one. |
496e208e | 1950 | |
94e0933e CY |
1951 | PREV-BUFFERS should be a list of elements (BUFFER WINDOW-START POS), |
1952 | where BUFFER is a buffer, WINDOW-START is the start position of the | |
1953 | window for that buffer, and POS is a window-specific point value. */) | |
496e208e MR |
1954 | (Lisp_Object window, Lisp_Object prev_buffers) |
1955 | { | |
e8c17b81 PE |
1956 | wset_prev_buffers (decode_live_window (window), prev_buffers); |
1957 | return prev_buffers; | |
496e208e MR |
1958 | } |
1959 | ||
1960 | DEFUN ("window-next-buffers", Fwindow_next_buffers, Swindow_next_buffers, | |
1961 | 0, 1, 0, | |
1962 | doc: /* Return list of buffers recently re-shown in WINDOW. | |
1963 | WINDOW must be a live window and defaults to the selected one. */) | |
1964 | (Lisp_Object window) | |
1965 | { | |
52162052 | 1966 | return decode_live_window (window)->next_buffers; |
496e208e MR |
1967 | } |
1968 | ||
1969 | DEFUN ("set-window-next-buffers", Fset_window_next_buffers, | |
1970 | Sset_window_next_buffers, 2, 2, 0, | |
1971 | doc: /* Set WINDOW's next buffers to NEXT-BUFFERS. | |
94e0933e CY |
1972 | WINDOW must be a live window and defaults to the selected one. |
1973 | NEXT-BUFFERS should be a list of buffers. */) | |
496e208e MR |
1974 | (Lisp_Object window, Lisp_Object next_buffers) |
1975 | { | |
e8c17b81 PE |
1976 | wset_next_buffers (decode_live_window (window), next_buffers); |
1977 | return next_buffers; | |
496e208e | 1978 | } |
d653c8cc | 1979 | |
cfbb2395 JB |
1980 | DEFUN ("window-parameters", Fwindow_parameters, Swindow_parameters, |
1981 | 0, 1, 0, | |
d653c8cc | 1982 | doc: /* Return the parameters of WINDOW and their values. |
52162052 MR |
1983 | WINDOW must be a valid window and defaults to the selected one. The |
1984 | return value is a list of elements of the form (PARAMETER . VALUE). */) | |
5842a27b | 1985 | (Lisp_Object window) |
cfbb2395 | 1986 | { |
52162052 | 1987 | return Fcopy_alist (decode_valid_window (window)->window_parameters); |
cfbb2395 JB |
1988 | } |
1989 | ||
1990 | DEFUN ("window-parameter", Fwindow_parameter, Swindow_parameter, | |
1991 | 2, 2, 0, | |
d653c8cc | 1992 | doc: /* Return WINDOW's value for PARAMETER. |
a8c729af | 1993 | WINDOW can be any window and defaults to the selected one. */) |
5842a27b | 1994 | (Lisp_Object window, Lisp_Object parameter) |
cfbb2395 | 1995 | { |
927abf37 JB |
1996 | Lisp_Object result; |
1997 | ||
a8c729af | 1998 | result = Fassq (parameter, decode_any_window (window)->window_parameters); |
927abf37 | 1999 | return CDR_SAFE (result); |
cfbb2395 JB |
2000 | } |
2001 | ||
cfbb2395 JB |
2002 | DEFUN ("set-window-parameter", Fset_window_parameter, |
2003 | Sset_window_parameter, 3, 3, 0, | |
d653c8cc | 2004 | doc: /* Set WINDOW's value of PARAMETER to VALUE. |
a8c729af | 2005 | WINDOW can be any window and defaults to the selected one. |
52162052 | 2006 | Return VALUE. */) |
5842a27b | 2007 | (Lisp_Object window, Lisp_Object parameter, Lisp_Object value) |
cfbb2395 | 2008 | { |
a8c729af | 2009 | register struct window *w = decode_any_window (window); |
cfbb2395 JB |
2010 | Lisp_Object old_alist_elt; |
2011 | ||
d3d50620 | 2012 | old_alist_elt = Fassq (parameter, w->window_parameters); |
12bb3111 | 2013 | if (NILP (old_alist_elt)) |
e8c17b81 PE |
2014 | wset_window_parameters |
2015 | (w, Fcons (Fcons (parameter, value), w->window_parameters)); | |
cfbb2395 JB |
2016 | else |
2017 | Fsetcdr (old_alist_elt, value); | |
927abf37 | 2018 | return value; |
cfbb2395 JB |
2019 | } |
2020 | ||
7ab12479 JB |
2021 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, |
2022 | 0, 1, 0, | |
c85322d0 | 2023 | doc: /* Return the display-table that WINDOW is using. |
52162052 | 2024 | WINDOW must be a live window and defaults to the selected one. */) |
5842a27b | 2025 | (Lisp_Object window) |
7ab12479 | 2026 | { |
52162052 | 2027 | return decode_live_window (window)->display_table; |
7ab12479 JB |
2028 | } |
2029 | ||
5500c422 GM |
2030 | /* Get the display table for use on window W. This is either W's |
2031 | display table or W's buffer's display table. Ignore the specified | |
2032 | tables if they are not valid; if no valid table is specified, | |
2033 | return 0. */ | |
7ab12479 | 2034 | |
319315f1 | 2035 | struct Lisp_Char_Table * |
971de7fb | 2036 | window_display_table (struct window *w) |
7ab12479 | 2037 | { |
c756cdbe GM |
2038 | struct Lisp_Char_Table *dp = NULL; |
2039 | ||
d3d50620 DA |
2040 | if (DISP_TABLE_P (w->display_table)) |
2041 | dp = XCHAR_TABLE (w->display_table); | |
e74aeda8 | 2042 | else if (BUFFERP (w->contents)) |
c756cdbe | 2043 | { |
e74aeda8 | 2044 | struct buffer *b = XBUFFER (w->contents); |
177c0ea7 | 2045 | |
4b4deea2 TT |
2046 | if (DISP_TABLE_P (BVAR (b, display_table))) |
2047 | dp = XCHAR_TABLE (BVAR (b, display_table)); | |
c756cdbe GM |
2048 | else if (DISP_TABLE_P (Vstandard_display_table)) |
2049 | dp = XCHAR_TABLE (Vstandard_display_table); | |
2050 | } | |
171d003c | 2051 | |
c756cdbe | 2052 | return dp; |
7ab12479 JB |
2053 | } |
2054 | ||
3a2712f9 | 2055 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
52162052 MR |
2056 | doc: /* Set WINDOW's display-table to TABLE. |
2057 | WINDOW must be a live window and defaults to the selected one. */) | |
5842a27b | 2058 | (register Lisp_Object window, Lisp_Object table) |
7ab12479 | 2059 | { |
e8c17b81 PE |
2060 | wset_display_table (decode_live_window (window), table); |
2061 | return table; | |
7ab12479 JB |
2062 | } |
2063 | \f | |
562dd5e9 | 2064 | /* Record info on buffer window W is displaying |
7ab12479 | 2065 | when it is about to cease to display that buffer. */ |
dfcf069d | 2066 | static void |
971de7fb | 2067 | unshow_buffer (register struct window *w) |
7ab12479 | 2068 | { |
e74aeda8 DA |
2069 | Lisp_Object buf = w->contents; |
2070 | struct buffer *b = XBUFFER (buf); | |
7ab12479 | 2071 | |
e74aeda8 | 2072 | eassert (b == XMARKER (w->pointm)->buffer); |
7ab12479 | 2073 | |
573f41ab | 2074 | #if 0 |
7ab12479 | 2075 | if (w == XWINDOW (selected_window) |
e74aeda8 | 2076 | || ! EQ (buf, XWINDOW (selected_window)->contents)) |
7ab12479 JB |
2077 | /* Do this except when the selected window's buffer |
2078 | is being removed from some other window. */ | |
573f41ab RS |
2079 | #endif |
2080 | /* last_window_start records the start position that this buffer | |
2081 | had in the last window to be disconnected from it. | |
2082 | Now that this statement is unconditional, | |
2083 | it is possible for the buffer to be displayed in the | |
2084 | selected window, while last_window_start reflects another | |
2085 | window which was recently showing the same buffer. | |
2086 | Some people might say that might be a good thing. Let's see. */ | |
d3d50620 | 2087 | b->last_window_start = marker_position (w->start); |
7ab12479 JB |
2088 | |
2089 | /* Point in the selected window's buffer | |
2090 | is actually stored in that buffer, and the window's pointm isn't used. | |
2091 | So don't clobber point in that buffer. */ | |
e74aeda8 | 2092 | if (! EQ (buf, XWINDOW (selected_window)->contents) |
c4b6914d MR |
2093 | /* Don't clobber point in current buffer either (this could be |
2094 | useful in connection with bug#12208). | |
2095 | && XBUFFER (buf) != current_buffer */ | |
719eaeb1 | 2096 | /* This line helps to fix Horsley's testbug.el bug. */ |
4b4deea2 TT |
2097 | && !(WINDOWP (BVAR (b, last_selected_window)) |
2098 | && w != XWINDOW (BVAR (b, last_selected_window)) | |
e74aeda8 | 2099 | && EQ (buf, XWINDOW (BVAR (b, last_selected_window))->contents))) |
b73ea88e RS |
2100 | temp_set_point_both (b, |
2101 | clip_to_bounds (BUF_BEGV (b), | |
4c1acb95 | 2102 | marker_position (w->pointm), |
b73ea88e RS |
2103 | BUF_ZV (b)), |
2104 | clip_to_bounds (BUF_BEGV_BYTE (b), | |
d3d50620 | 2105 | marker_byte_position (w->pointm), |
b73ea88e | 2106 | BUF_ZV_BYTE (b))); |
177c0ea7 | 2107 | |
4b4deea2 TT |
2108 | if (WINDOWP (BVAR (b, last_selected_window)) |
2109 | && w == XWINDOW (BVAR (b, last_selected_window))) | |
39eb03f1 | 2110 | bset_last_selected_window (b, Qnil); |
7ab12479 JB |
2111 | } |
2112 | ||
1a13852e MR |
2113 | /* Put NEW into the window structure in place of OLD. SETFLAG zero |
2114 | means change window structure only. Otherwise store geometry and | |
2115 | other settings as well. */ | |
dfcf069d | 2116 | static void |
1a13852e | 2117 | replace_window (Lisp_Object old, Lisp_Object new, int setflag) |
7ab12479 JB |
2118 | { |
2119 | register Lisp_Object tem; | |
1a13852e | 2120 | register struct window *o = XWINDOW (old), *n = XWINDOW (new); |
7ab12479 | 2121 | |
1a13852e MR |
2122 | /* If OLD is its frame's root window, then NEW is the new |
2123 | root window for that frame. */ | |
d3d50620 | 2124 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
f00af5b1 | 2125 | fset_root_window (XFRAME (o->frame), new); |
077288cf | 2126 | |
5f24fa51 DA |
2127 | if (setflag) |
2128 | { | |
880e6158 MR |
2129 | n->pixel_left = o->pixel_left; |
2130 | n->pixel_top = o->pixel_top; | |
2131 | n->pixel_width = o->pixel_width; | |
2132 | n->pixel_height = o->pixel_height; | |
5f24fa51 DA |
2133 | n->left_col = o->left_col; |
2134 | n->top_line = o->top_line; | |
2135 | n->total_cols = o->total_cols; | |
2136 | n->total_lines = o->total_lines; | |
e8c17b81 PE |
2137 | wset_normal_cols (n, o->normal_cols); |
2138 | wset_normal_cols (o, make_float (1.0)); | |
2139 | wset_normal_lines (n, o->normal_lines); | |
2140 | wset_normal_lines (o, make_float (1.0)); | |
1a13852e MR |
2141 | n->desired_matrix = n->current_matrix = 0; |
2142 | n->vscroll = 0; | |
2143 | memset (&n->cursor, 0, sizeof (n->cursor)); | |
1a13852e | 2144 | memset (&n->phys_cursor, 0, sizeof (n->phys_cursor)); |
c80016b3 | 2145 | n->last_cursor_vpos = 0; |
29bf4de4 DA |
2146 | #ifdef HAVE_WINDOW_SYSTEM |
2147 | n->phys_cursor_type = NO_CURSOR; | |
1a13852e | 2148 | n->phys_cursor_width = -1; |
29bf4de4 | 2149 | #endif |
1a13852e MR |
2150 | n->must_be_updated_p = 0; |
2151 | n->pseudo_window_p = 0; | |
02455cb6 DA |
2152 | n->window_end_vpos = 0; |
2153 | n->window_end_pos = 0; | |
9d93ce29 | 2154 | n->window_end_valid = 0; |
1a13852e MR |
2155 | } |
2156 | ||
d3d50620 | 2157 | tem = o->next; |
e8c17b81 | 2158 | wset_next (n, tem); |
265a9e55 | 2159 | if (!NILP (tem)) |
e8c17b81 | 2160 | wset_prev (XWINDOW (tem), new); |
7ab12479 | 2161 | |
d3d50620 | 2162 | tem = o->prev; |
e8c17b81 | 2163 | wset_prev (n, tem); |
265a9e55 | 2164 | if (!NILP (tem)) |
e8c17b81 | 2165 | wset_next (XWINDOW (tem), new); |
7ab12479 | 2166 | |
d3d50620 | 2167 | tem = o->parent; |
e8c17b81 | 2168 | wset_parent (n, tem); |
e74aeda8 DA |
2169 | if (!NILP (tem) && EQ (XWINDOW (tem)->contents, old)) |
2170 | wset_combination (XWINDOW (tem), XWINDOW (tem)->horizontal, new); | |
1a13852e MR |
2171 | } |
2172 | ||
2173 | /* If window WINDOW and its parent window are iso-combined, merge | |
2174 | WINDOW's children into those of its parent window and mark WINDOW as | |
2175 | deleted. */ | |
2176 | ||
2177 | static void | |
2178 | recombine_windows (Lisp_Object window) | |
2179 | { | |
2180 | struct window *w, *p, *c; | |
2181 | Lisp_Object parent, child; | |
748fa866 | 2182 | bool horflag; |
1a13852e MR |
2183 | |
2184 | w = XWINDOW (window); | |
d3d50620 DA |
2185 | parent = w->parent; |
2186 | if (!NILP (parent) && NILP (w->combination_limit)) | |
1a13852e MR |
2187 | { |
2188 | p = XWINDOW (parent); | |
e74aeda8 DA |
2189 | if (WINDOWP (p->contents) && WINDOWP (w->contents) |
2190 | && p->horizontal == w->horizontal) | |
1a13852e MR |
2191 | /* WINDOW and PARENT are both either a vertical or a horizontal |
2192 | combination. */ | |
2193 | { | |
e74aeda8 DA |
2194 | horflag = WINDOW_HORIZONTAL_COMBINATION_P (w); |
2195 | child = w->contents; | |
1a13852e MR |
2196 | c = XWINDOW (child); |
2197 | ||
2198 | /* Splice WINDOW's children into its parent's children and | |
2199 | assign new normal sizes. */ | |
d3d50620 | 2200 | if (NILP (w->prev)) |
e74aeda8 | 2201 | wset_combination (p, horflag, child); |
1a13852e MR |
2202 | else |
2203 | { | |
e8c17b81 PE |
2204 | wset_prev (c, w->prev); |
2205 | wset_next (XWINDOW (w->prev), child); | |
1a13852e MR |
2206 | } |
2207 | ||
2208 | while (c) | |
2209 | { | |
e8c17b81 | 2210 | wset_parent (c, parent); |
1a13852e MR |
2211 | |
2212 | if (horflag) | |
880e6158 MR |
2213 | wset_normal_cols |
2214 | (c, make_float ((double) c->pixel_width | |
2215 | / (double) p->pixel_width)); | |
1a13852e | 2216 | else |
880e6158 MR |
2217 | wset_normal_lines |
2218 | (c, make_float ((double) c->pixel_height | |
2219 | / (double) p->pixel_height)); | |
1a13852e | 2220 | |
d3d50620 | 2221 | if (NILP (c->next)) |
1a13852e | 2222 | { |
d3d50620 | 2223 | if (!NILP (w->next)) |
1a13852e | 2224 | { |
e8c17b81 PE |
2225 | wset_next (c, w->next); |
2226 | wset_prev (XWINDOW (c->next), child); | |
1a13852e MR |
2227 | } |
2228 | ||
2229 | c = 0; | |
2230 | } | |
2231 | else | |
2232 | { | |
d3d50620 | 2233 | child = c->next; |
1a13852e MR |
2234 | c = XWINDOW (child); |
2235 | } | |
2236 | } | |
7ab12479 | 2237 | |
1a13852e | 2238 | /* WINDOW can be deleted now. */ |
e74aeda8 | 2239 | wset_combination (w, 0, Qnil); |
1a13852e MR |
2240 | } |
2241 | } | |
7ab12479 | 2242 | } |
6198ccd0 MR |
2243 | |
2244 | /* If WINDOW can be deleted, delete it. */ | |
4475bec4 | 2245 | static void |
6198ccd0 MR |
2246 | delete_deletable_window (Lisp_Object window) |
2247 | { | |
2248 | if (!NILP (call1 (Qwindow_deletable_p, window))) | |
2249 | call1 (Qdelete_window, window); | |
2250 | } | |
1a13852e | 2251 | \f |
67492200 GM |
2252 | /*********************************************************************** |
2253 | Window List | |
2254 | ***********************************************************************/ | |
2255 | ||
f95464e4 GM |
2256 | /* Add window W to *USER_DATA. USER_DATA is actually a Lisp_Object |
2257 | pointer. This is a callback function for foreach_window, used in | |
496e208e | 2258 | the window_list function. */ |
67492200 GM |
2259 | |
2260 | static int | |
971de7fb | 2261 | add_window_to_list (struct window *w, void *user_data) |
67492200 | 2262 | { |
7d652d97 | 2263 | Lisp_Object *list = user_data; |
67492200 GM |
2264 | Lisp_Object window; |
2265 | XSETWINDOW (window, w); | |
212116d6 | 2266 | *list = Fcons (window, *list); |
67492200 GM |
2267 | return 1; |
2268 | } | |
2269 | ||
2270 | ||
2271 | /* Return a list of all windows, for use by next_window. If | |
2272 | Vwindow_list is a list, return that list. Otherwise, build a new | |
2273 | list, cache it in Vwindow_list, and return that. */ | |
2274 | ||
655ab9a3 | 2275 | Lisp_Object |
971de7fb | 2276 | window_list (void) |
67492200 GM |
2277 | { |
2278 | if (!CONSP (Vwindow_list)) | |
2279 | { | |
5b04e9f9 | 2280 | Lisp_Object tail, frame; |
212116d6 | 2281 | |
67492200 | 2282 | Vwindow_list = Qnil; |
5b04e9f9 | 2283 | FOR_EACH_FRAME (tail, frame) |
212116d6 GM |
2284 | { |
2285 | Lisp_Object args[2]; | |
2286 | ||
2287 | /* We are visiting windows in canonical order, and add | |
2288 | new windows at the front of args[1], which means we | |
2289 | have to reverse this list at the end. */ | |
2290 | args[1] = Qnil; | |
5b04e9f9 | 2291 | foreach_window (XFRAME (frame), add_window_to_list, &args[1]); |
212116d6 GM |
2292 | args[0] = Vwindow_list; |
2293 | args[1] = Fnreverse (args[1]); | |
2294 | Vwindow_list = Fnconc (2, args); | |
2295 | } | |
67492200 | 2296 | } |
177c0ea7 | 2297 | |
67492200 GM |
2298 | return Vwindow_list; |
2299 | } | |
2300 | ||
2301 | ||
118ea242 GM |
2302 | /* Value is non-zero if WINDOW satisfies the constraints given by |
2303 | OWINDOW, MINIBUF and ALL_FRAMES. | |
67492200 | 2304 | |
118ea242 GM |
2305 | MINIBUF t means WINDOW may be minibuffer windows. |
2306 | `lambda' means WINDOW may not be a minibuffer window. | |
2307 | a window means a specific minibuffer window | |
67492200 | 2308 | |
118ea242 GM |
2309 | ALL_FRAMES t means search all frames, |
2310 | nil means search just current frame, | |
aa248733 MS |
2311 | `visible' means search just visible frames on the |
2312 | current terminal, | |
2313 | 0 means search visible and iconified frames on the | |
2314 | current terminal, | |
118ea242 GM |
2315 | a window means search the frame that window belongs to, |
2316 | a frame means consider windows on that frame, only. */ | |
67492200 | 2317 | |
d7e6881a DA |
2318 | static bool |
2319 | candidate_window_p (Lisp_Object window, Lisp_Object owindow, | |
2320 | Lisp_Object minibuf, Lisp_Object all_frames) | |
67492200 GM |
2321 | { |
2322 | struct window *w = XWINDOW (window); | |
d3d50620 | 2323 | struct frame *f = XFRAME (w->frame); |
d7e6881a | 2324 | bool candidate_p = 1; |
67492200 | 2325 | |
e74aeda8 | 2326 | if (!BUFFERP (w->contents)) |
67492200 GM |
2327 | candidate_p = 0; |
2328 | else if (MINI_WINDOW_P (w) | |
2329 | && (EQ (minibuf, Qlambda) | |
2330 | || (WINDOWP (minibuf) && !EQ (minibuf, window)))) | |
2331 | { | |
2332 | /* If MINIBUF is `lambda' don't consider any mini-windows. | |
2333 | If it is a window, consider only that one. */ | |
2334 | candidate_p = 0; | |
2335 | } | |
118ea242 GM |
2336 | else if (EQ (all_frames, Qt)) |
2337 | candidate_p = 1; | |
67492200 | 2338 | else if (NILP (all_frames)) |
118ea242 | 2339 | { |
a54e2c05 | 2340 | eassert (WINDOWP (owindow)); |
d3d50620 | 2341 | candidate_p = EQ (w->frame, XWINDOW (owindow)->frame); |
118ea242 | 2342 | } |
67492200 GM |
2343 | else if (EQ (all_frames, Qvisible)) |
2344 | { | |
de509a60 | 2345 | candidate_p = FRAME_VISIBLE_P (f) |
d3d50620 | 2346 | && (FRAME_TERMINAL (XFRAME (w->frame)) |
de509a60 SM |
2347 | == FRAME_TERMINAL (XFRAME (selected_frame))); |
2348 | ||
67492200 GM |
2349 | } |
2350 | else if (INTEGERP (all_frames) && XINT (all_frames) == 0) | |
2351 | { | |
ca2d5566 SM |
2352 | candidate_p = (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f) |
2353 | #ifdef HAVE_X_WINDOWS | |
2354 | /* Yuck!! If we've just created the frame and the | |
2355 | window-manager requested the user to place it | |
2356 | manually, the window may still not be considered | |
2357 | `visible'. I'd argue it should be at least | |
2358 | something like `iconified', but don't know how to do | |
2359 | that yet. --Stef */ | |
2360 | || (FRAME_X_P (f) && f->output_data.x->asked_for_visible | |
2361 | && !f->output_data.x->has_been_visible) | |
2362 | #endif | |
de509a60 | 2363 | ) |
d3d50620 | 2364 | && (FRAME_TERMINAL (XFRAME (w->frame)) |
de509a60 | 2365 | == FRAME_TERMINAL (XFRAME (selected_frame))); |
67492200 | 2366 | } |
67492200 GM |
2367 | else if (WINDOWP (all_frames)) |
2368 | candidate_p = (EQ (FRAME_MINIBUF_WINDOW (f), all_frames) | |
d3d50620 DA |
2369 | || EQ (XWINDOW (all_frames)->frame, w->frame) |
2370 | || EQ (XWINDOW (all_frames)->frame, FRAME_FOCUS_FRAME (f))); | |
118ea242 | 2371 | else if (FRAMEP (all_frames)) |
d3d50620 | 2372 | candidate_p = EQ (all_frames, w->frame); |
67492200 GM |
2373 | |
2374 | return candidate_p; | |
2375 | } | |
2376 | ||
2377 | ||
2378 | /* Decode arguments as allowed by Fnext_window, Fprevious_window, and | |
aa248733 MS |
2379 | Fwindow_list. See candidate_window_p for the meaning of WINDOW, |
2380 | MINIBUF, and ALL_FRAMES. */ | |
67492200 GM |
2381 | |
2382 | static void | |
971de7fb | 2383 | decode_next_window_args (Lisp_Object *window, Lisp_Object *minibuf, Lisp_Object *all_frames) |
67492200 | 2384 | { |
b9e9df47 | 2385 | struct window *w = decode_live_window (*window); |
177c0ea7 | 2386 | |
b6a9e8b1 | 2387 | XSETWINDOW (*window, w); |
67492200 GM |
2388 | /* MINIBUF nil may or may not include minibuffers. Decide if it |
2389 | does. */ | |
2390 | if (NILP (*minibuf)) | |
2391 | *minibuf = minibuf_level ? minibuf_window : Qlambda; | |
2392 | else if (!EQ (*minibuf, Qt)) | |
2393 | *minibuf = Qlambda; | |
177c0ea7 | 2394 | |
67492200 GM |
2395 | /* Now *MINIBUF can be t => count all minibuffer windows, `lambda' |
2396 | => count none of them, or a specific minibuffer window (the | |
2397 | active one) to count. */ | |
2398 | ||
2399 | /* ALL_FRAMES nil doesn't specify which frames to include. */ | |
2400 | if (NILP (*all_frames)) | |
f00af5b1 | 2401 | *all_frames |
3a45383a | 2402 | = (!EQ (*minibuf, Qlambda) |
b9e9df47 | 2403 | ? FRAME_MINIBUF_WINDOW (XFRAME (w->frame)) |
3a45383a | 2404 | : Qnil); |
67492200 GM |
2405 | else if (EQ (*all_frames, Qvisible)) |
2406 | ; | |
0f8fe9a2 | 2407 | else if (EQ (*all_frames, make_number (0))) |
67492200 GM |
2408 | ; |
2409 | else if (FRAMEP (*all_frames)) | |
2410 | ; | |
2411 | else if (!EQ (*all_frames, Qt)) | |
2412 | *all_frames = Qnil; | |
67492200 GM |
2413 | } |
2414 | ||
2415 | ||
ab6d1131 | 2416 | /* Return the next or previous window of WINDOW in cyclic ordering |
67492200 GM |
2417 | of windows. NEXT_P non-zero means return the next window. See the |
2418 | documentation string of next-window for the meaning of MINIBUF and | |
2419 | ALL_FRAMES. */ | |
2420 | ||
2421 | static Lisp_Object | |
971de7fb | 2422 | next_window (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames, int next_p) |
67492200 GM |
2423 | { |
2424 | decode_next_window_args (&window, &minibuf, &all_frames); | |
177c0ea7 | 2425 | |
67492200 GM |
2426 | /* If ALL_FRAMES is a frame, and WINDOW isn't on that frame, just |
2427 | return the first window on the frame. */ | |
2428 | if (FRAMEP (all_frames) | |
d3d50620 | 2429 | && !EQ (all_frames, XWINDOW (window)->frame)) |
67492200 | 2430 | return Fframe_first_window (all_frames); |
177c0ea7 | 2431 | |
212116d6 | 2432 | if (next_p) |
67492200 GM |
2433 | { |
2434 | Lisp_Object list; | |
177c0ea7 | 2435 | |
67492200 GM |
2436 | /* Find WINDOW in the list of all windows. */ |
2437 | list = Fmemq (window, window_list ()); | |
2438 | ||
2439 | /* Scan forward from WINDOW to the end of the window list. */ | |
2440 | if (CONSP (list)) | |
2441 | for (list = XCDR (list); CONSP (list); list = XCDR (list)) | |
118ea242 | 2442 | if (candidate_window_p (XCAR (list), window, minibuf, all_frames)) |
67492200 GM |
2443 | break; |
2444 | ||
2445 | /* Scan from the start of the window list up to WINDOW. */ | |
2446 | if (!CONSP (list)) | |
2447 | for (list = Vwindow_list; | |
2448 | CONSP (list) && !EQ (XCAR (list), window); | |
2449 | list = XCDR (list)) | |
118ea242 | 2450 | if (candidate_window_p (XCAR (list), window, minibuf, all_frames)) |
67492200 GM |
2451 | break; |
2452 | ||
2453 | if (CONSP (list)) | |
2454 | window = XCAR (list); | |
2455 | } | |
2456 | else | |
2457 | { | |
2458 | Lisp_Object candidate, list; | |
177c0ea7 | 2459 | |
67492200 GM |
2460 | /* Scan through the list of windows for candidates. If there are |
2461 | candidate windows in front of WINDOW, the last one of these | |
2462 | is the one we want. If there are candidates following WINDOW | |
2463 | in the list, again the last one of these is the one we want. */ | |
2464 | candidate = Qnil; | |
2465 | for (list = window_list (); CONSP (list); list = XCDR (list)) | |
2466 | { | |
2467 | if (EQ (XCAR (list), window)) | |
2468 | { | |
2469 | if (WINDOWP (candidate)) | |
2470 | break; | |
2471 | } | |
118ea242 GM |
2472 | else if (candidate_window_p (XCAR (list), window, minibuf, |
2473 | all_frames)) | |
67492200 GM |
2474 | candidate = XCAR (list); |
2475 | } | |
2476 | ||
2477 | if (WINDOWP (candidate)) | |
2478 | window = candidate; | |
2479 | } | |
2480 | ||
2481 | return window; | |
2482 | } | |
7ab12479 | 2483 | |
7ab12479 | 2484 | |
a7ca3326 | 2485 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, |
a9b9b7f5 | 2486 | doc: /* Return live window after WINDOW in the cyclic ordering of windows. |
87e68db4 | 2487 | WINDOW must be a live window and defaults to the selected one. The |
9397e56f MR |
2488 | optional arguments MINIBUF and ALL-FRAMES specify the set of windows to |
2489 | consider. | |
2490 | ||
2491 | MINIBUF nil or omitted means consider the minibuffer window only if the | |
2492 | minibuffer is active. MINIBUF t means consider the minibuffer window | |
2493 | even if the minibuffer is not active. Any other value means do not | |
2494 | consider the minibuffer window even if the minibuffer is active. | |
2495 | ||
2496 | ALL-FRAMES nil or omitted means consider all windows on WINDOW's frame, | |
2497 | plus the minibuffer window if specified by the MINIBUF argument. If the | |
2498 | minibuffer counts, consider all windows on all frames that share that | |
2499 | minibuffer too. The following non-nil values of ALL-FRAMES have special | |
2500 | meanings: | |
2501 | ||
2502 | - t means consider all windows on all existing frames. | |
2503 | ||
2504 | - `visible' means consider all windows on all visible frames. | |
2505 | ||
2506 | - 0 (the number zero) means consider all windows on all visible and | |
2507 | iconified frames. | |
2508 | ||
2509 | - A frame means consider all windows on that frame only. | |
ab6d1131 | 2510 | |
ab6d1131 | 2511 | Anything else means consider all windows on WINDOW's frame and no |
9397e56f | 2512 | others. |
fdb82f93 PJ |
2513 | |
2514 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use | |
2515 | `next-window' to iterate through the entire cycle of acceptable | |
2516 | windows, eventually ending up back at the window you started with. | |
2517 | `previous-window' traverses the same cycle, in the reverse order. */) | |
5842a27b | 2518 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
7ab12479 | 2519 | { |
67492200 | 2520 | return next_window (window, minibuf, all_frames, 1); |
7ab12479 JB |
2521 | } |
2522 | ||
67492200 | 2523 | |
26f6279d | 2524 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, |
a9b9b7f5 | 2525 | doc: /* Return live window before WINDOW in the cyclic ordering of windows. |
9397e56f MR |
2526 | WINDOW must be a live window and defaults to the selected one. The |
2527 | optional arguments MINIBUF and ALL-FRAMES specify the set of windows to | |
2528 | consider. | |
2529 | ||
2530 | MINIBUF nil or omitted means consider the minibuffer window only if the | |
2531 | minibuffer is active. MINIBUF t means consider the minibuffer window | |
2532 | even if the minibuffer is not active. Any other value means do not | |
2533 | consider the minibuffer window even if the minibuffer is active. | |
2534 | ||
2535 | ALL-FRAMES nil or omitted means consider all windows on WINDOW's frame, | |
2536 | plus the minibuffer window if specified by the MINIBUF argument. If the | |
2537 | minibuffer counts, consider all windows on all frames that share that | |
2538 | minibuffer too. The following non-nil values of ALL-FRAMES have special | |
2539 | meanings: | |
2540 | ||
2541 | - t means consider all windows on all existing frames. | |
2542 | ||
2543 | - `visible' means consider all windows on all visible frames. | |
2544 | ||
2545 | - 0 (the number zero) means consider all windows on all visible and | |
2546 | iconified frames. | |
2547 | ||
2548 | - A frame means consider all windows on that frame only. | |
2549 | ||
2550 | Anything else means consider all windows on WINDOW's frame and no | |
2551 | others. | |
ab6d1131 MR |
2552 | |
2553 | If you use consistent values for MINIBUF and ALL-FRAMES, you can | |
2554 | use `previous-window' to iterate through the entire cycle of | |
2555 | acceptable windows, eventually ending up back at the window you | |
2556 | started with. `next-window' traverses the same cycle, in the | |
2557 | reverse order. */) | |
5842a27b | 2558 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
7ab12479 | 2559 | { |
67492200 | 2560 | return next_window (window, minibuf, all_frames, 0); |
7ab12479 JB |
2561 | } |
2562 | ||
67492200 | 2563 | |
ab6d1131 | 2564 | /* Return a list of windows in cyclic ordering. Arguments are like |
cd2904bd GM |
2565 | for `next-window'. */ |
2566 | ||
2567 | static Lisp_Object | |
971de7fb | 2568 | window_list_1 (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
67492200 | 2569 | { |
403de3b4 | 2570 | Lisp_Object tail, list, rest; |
67492200 GM |
2571 | |
2572 | decode_next_window_args (&window, &minibuf, &all_frames); | |
2573 | list = Qnil; | |
177c0ea7 | 2574 | |
67492200 | 2575 | for (tail = window_list (); CONSP (tail); tail = XCDR (tail)) |
118ea242 | 2576 | if (candidate_window_p (XCAR (tail), window, minibuf, all_frames)) |
67492200 | 2577 | list = Fcons (XCAR (tail), list); |
177c0ea7 | 2578 | |
403de3b4 RS |
2579 | /* Rotate the list to start with WINDOW. */ |
2580 | list = Fnreverse (list); | |
2581 | rest = Fmemq (window, list); | |
2582 | if (!NILP (rest) && !EQ (rest, list)) | |
2583 | { | |
1725a7c9 | 2584 | for (tail = list; !EQ (XCDR (tail), rest); tail = XCDR (tail)) |
403de3b4 RS |
2585 | ; |
2586 | XSETCDR (tail, Qnil); | |
2587 | list = nconc2 (rest, list); | |
2588 | } | |
2589 | return list; | |
67492200 GM |
2590 | } |
2591 | ||
2592 | ||
abde8f8c MR |
2593 | DEFUN ("window-list", Fwindow_list, Swindow_list, 0, 3, 0, |
2594 | doc: /* Return a list of windows on FRAME, starting with WINDOW. | |
2595 | FRAME nil or omitted means use the selected frame. | |
49745b39 | 2596 | WINDOW nil or omitted means use the window selected within FRAME. |
abde8f8c MR |
2597 | MINIBUF t means include the minibuffer window, even if it isn't active. |
2598 | MINIBUF nil or omitted means include the minibuffer window only | |
2599 | if it's active. | |
2600 | MINIBUF neither nil nor t means never include the minibuffer window. */) | |
2601 | (Lisp_Object frame, Lisp_Object minibuf, Lisp_Object window) | |
2602 | { | |
2603 | if (NILP (window)) | |
e69b0960 | 2604 | window = FRAMEP (frame) ? XFRAME (frame)->selected_window : selected_window; |
abde8f8c MR |
2605 | CHECK_WINDOW (window); |
2606 | if (NILP (frame)) | |
2607 | frame = selected_frame; | |
2608 | ||
d3d50620 | 2609 | if (!EQ (frame, XWINDOW (window)->frame)) |
abde8f8c MR |
2610 | error ("Window is on a different frame"); |
2611 | ||
2612 | return window_list_1 (window, minibuf, frame); | |
2613 | } | |
2614 | ||
2615 | ||
1a13852e MR |
2616 | DEFUN ("window-list-1", Fwindow_list_1, Swindow_list_1, 0, 3, 0, |
2617 | doc: /* Return a list of all live windows. | |
2618 | WINDOW specifies the first window to list and defaults to the selected | |
2619 | window. | |
2620 | ||
2621 | Optional argument MINIBUF nil or omitted means consider the minibuffer | |
2622 | window only if the minibuffer is active. MINIBUF t means consider the | |
2623 | minibuffer window even if the minibuffer is not active. Any other value | |
2624 | means do not consider the minibuffer window even if the minibuffer is | |
2625 | active. | |
2626 | ||
2627 | Optional argument ALL-FRAMES nil or omitted means consider all windows | |
2628 | on WINDOW's frame, plus the minibuffer window if specified by the | |
2629 | MINIBUF argument. If the minibuffer counts, consider all windows on all | |
2630 | frames that share that minibuffer too. The following non-nil values of | |
2631 | ALL-FRAMES have special meanings: | |
2632 | ||
2633 | - t means consider all windows on all existing frames. | |
2634 | ||
2635 | - `visible' means consider all windows on all visible frames. | |
2636 | ||
2637 | - 0 (the number zero) means consider all windows on all visible and | |
2638 | iconified frames. | |
2639 | ||
2640 | - A frame means consider all windows on that frame only. | |
2641 | ||
2642 | Anything else means consider all windows on WINDOW's frame and no | |
2643 | others. | |
2644 | ||
2645 | If WINDOW is not on the list of windows returned, some other window will | |
8350f087 | 2646 | be listed first but no error is signaled. */) |
1a13852e MR |
2647 | (Lisp_Object window, Lisp_Object minibuf, Lisp_Object all_frames) |
2648 | { | |
2649 | return window_list_1 (window, minibuf, all_frames); | |
2650 | } | |
7ab12479 JB |
2651 | \f |
2652 | /* Look at all windows, performing an operation specified by TYPE | |
2653 | with argument OBJ. | |
75d8f668 | 2654 | If FRAMES is Qt, look at all frames; |
75d8f668 | 2655 | Qnil, look at just the selected frame; |
89bca612 | 2656 | Qvisible, look at visible frames; |
75d8f668 | 2657 | a frame, just look at windows on that frame. |
85fe3b5e | 2658 | If MINI is non-zero, perform the operation on minibuffer windows too. */ |
7ab12479 JB |
2659 | |
2660 | enum window_loop | |
2661 | { | |
2662 | WINDOW_LOOP_UNUSED, | |
9397e56f MR |
2663 | GET_BUFFER_WINDOW, /* Arg is buffer */ |
2664 | REPLACE_BUFFER_IN_WINDOWS_SAFELY, /* Arg is buffer */ | |
2665 | REDISPLAY_BUFFER_WINDOWS, /* Arg is buffer */ | |
e74aeda8 | 2666 | CHECK_ALL_WINDOWS /* Arg is ignored */ |
7ab12479 JB |
2667 | }; |
2668 | ||
2669 | static Lisp_Object | |
971de7fb | 2670 | window_loop (enum window_loop type, Lisp_Object obj, int mini, Lisp_Object frames) |
7ab12479 | 2671 | { |
118ea242 | 2672 | Lisp_Object window, windows, best_window, frame_arg; |
9397e56f | 2673 | int frame_best_window_flag = 0; |
118ea242 | 2674 | struct frame *f; |
ffdc852d | 2675 | struct gcpro gcpro1; |
177c0ea7 | 2676 | |
44fa5b1e JB |
2677 | /* If we're only looping through windows on a particular frame, |
2678 | frame points to that frame. If we're looping through windows | |
2679 | on all frames, frame is 0. */ | |
2680 | if (FRAMEP (frames)) | |
118ea242 | 2681 | f = XFRAME (frames); |
44fa5b1e | 2682 | else if (NILP (frames)) |
118ea242 | 2683 | f = SELECTED_FRAME (); |
7ab12479 | 2684 | else |
118ea242 | 2685 | f = NULL; |
177c0ea7 | 2686 | |
118ea242 | 2687 | if (f) |
89bca612 | 2688 | frame_arg = Qlambda; |
0f8fe9a2 | 2689 | else if (EQ (frames, make_number (0))) |
f812f9c6 | 2690 | frame_arg = frames; |
89bca612 RS |
2691 | else if (EQ (frames, Qvisible)) |
2692 | frame_arg = frames; | |
118ea242 GM |
2693 | else |
2694 | frame_arg = Qt; | |
7ab12479 | 2695 | |
89bca612 RS |
2696 | /* frame_arg is Qlambda to stick to one frame, |
2697 | Qvisible to consider all visible frames, | |
2698 | or Qt otherwise. */ | |
2699 | ||
7ab12479 | 2700 | /* Pick a window to start with. */ |
017b2bad | 2701 | if (WINDOWP (obj)) |
118ea242 GM |
2702 | window = obj; |
2703 | else if (f) | |
2704 | window = FRAME_SELECTED_WINDOW (f); | |
7ab12479 | 2705 | else |
118ea242 | 2706 | window = FRAME_SELECTED_WINDOW (SELECTED_FRAME ()); |
4b206065 | 2707 | |
cd2904bd | 2708 | windows = window_list_1 (window, mini ? Qt : Qnil, frame_arg); |
118ea242 | 2709 | GCPRO1 (windows); |
7ab12479 | 2710 | best_window = Qnil; |
118ea242 | 2711 | |
e67a1dea | 2712 | for (; CONSP (windows); windows = XCDR (windows)) |
7ab12479 | 2713 | { |
118ea242 | 2714 | struct window *w; |
177c0ea7 | 2715 | |
118ea242 GM |
2716 | window = XCAR (windows); |
2717 | w = XWINDOW (window); | |
177c0ea7 | 2718 | |
118ea242 GM |
2719 | /* Note that we do not pay attention here to whether the frame |
2720 | is visible, since Fwindow_list skips non-visible frames if | |
2721 | that is desired, under the control of frame_arg. */ | |
2722 | if (!MINI_WINDOW_P (w) | |
9397e56f MR |
2723 | /* For REPLACE_BUFFER_IN_WINDOWS_SAFELY, we must always |
2724 | consider all windows. */ | |
2725 | || type == REPLACE_BUFFER_IN_WINDOWS_SAFELY | |
7ab12479 JB |
2726 | || (mini && minibuf_level > 0)) |
2727 | switch (type) | |
2728 | { | |
2729 | case GET_BUFFER_WINDOW: | |
e74aeda8 | 2730 | if (EQ (w->contents, obj) |
9397e56f MR |
2731 | /* Don't find any minibuffer window except the one that |
2732 | is currently in use. */ | |
2733 | && (MINI_WINDOW_P (w) ? EQ (window, minibuf_window) : 1)) | |
118ea242 | 2734 | { |
9397e56f MR |
2735 | if (EQ (window, selected_window)) |
2736 | /* Preferably return the selected window. */ | |
ca2d5566 | 2737 | RETURN_UNGCPRO (window); |
d3d50620 | 2738 | else if (EQ (XWINDOW (window)->frame, selected_frame) |
9397e56f MR |
2739 | && !frame_best_window_flag) |
2740 | /* Prefer windows on the current frame (but don't | |
2741 | choose another one if we have one already). */ | |
118ea242 | 2742 | { |
9397e56f MR |
2743 | best_window = window; |
2744 | frame_best_window_flag = 1; | |
7ab12479 | 2745 | } |
9397e56f MR |
2746 | else if (NILP (best_window)) |
2747 | best_window = window; | |
7ab12479 JB |
2748 | } |
2749 | break; | |
2750 | ||
9397e56f MR |
2751 | case REPLACE_BUFFER_IN_WINDOWS_SAFELY: |
2752 | /* We could simply check whether the buffer shown by window | |
2753 | is live, and show another buffer in case it isn't. */ | |
e74aeda8 | 2754 | if (EQ (w->contents, obj)) |
7ab12479 | 2755 | { |
9397e56f | 2756 | /* Undedicate WINDOW. */ |
e8c17b81 | 2757 | wset_dedicated (w, Qnil); |
9397e56f MR |
2758 | /* Make WINDOW show the buffer returned by |
2759 | other_buffer_safely, don't run any hooks. */ | |
2760 | set_window_buffer | |
e74aeda8 | 2761 | (window, other_buffer_safely (w->contents), 0, 0); |
9397e56f MR |
2762 | /* If WINDOW is the selected window, make its buffer |
2763 | current. But do so only if the window shows the | |
2764 | current buffer (Bug#6454). */ | |
2765 | if (EQ (window, selected_window) | |
e74aeda8 DA |
2766 | && XBUFFER (w->contents) == current_buffer) |
2767 | Fset_buffer (w->contents); | |
7ab12479 JB |
2768 | } |
2769 | break; | |
3f8ab7bd | 2770 | |
6b61353c | 2771 | case REDISPLAY_BUFFER_WINDOWS: |
e74aeda8 | 2772 | if (EQ (w->contents, obj)) |
6b61353c KH |
2773 | { |
2774 | mark_window_display_accurate (window, 0); | |
c98ff5dd | 2775 | w->update_mode_line = 1; |
6b61353c | 2776 | XBUFFER (obj)->prevent_redisplay_optimizations_p = 1; |
2ec9db5d | 2777 | update_mode_lines = 27; |
6b61353c KH |
2778 | best_window = window; |
2779 | } | |
2780 | break; | |
2781 | ||
e74aeda8 DA |
2782 | /* Check for a leaf window that has a killed buffer |
2783 | or broken markers. */ | |
3f8ab7bd | 2784 | case CHECK_ALL_WINDOWS: |
e74aeda8 DA |
2785 | if (BUFFERP (w->contents)) |
2786 | { | |
2787 | struct buffer *b = XBUFFER (w->contents); | |
2788 | ||
2789 | if (!BUFFER_LIVE_P (b)) | |
2790 | emacs_abort (); | |
2791 | if (!MARKERP (w->start) || XMARKER (w->start)->buffer != b) | |
2792 | emacs_abort (); | |
2793 | if (!MARKERP (w->pointm) || XMARKER (w->pointm)->buffer != b) | |
2794 | emacs_abort (); | |
2795 | } | |
118ea242 | 2796 | break; |
6bbd7a29 GM |
2797 | |
2798 | case WINDOW_LOOP_UNUSED: | |
2799 | break; | |
7ab12479 | 2800 | } |
7ab12479 | 2801 | } |
7ab12479 | 2802 | |
118ea242 | 2803 | UNGCPRO; |
7ab12479 | 2804 | return best_window; |
37962e60 | 2805 | } |
605be8af | 2806 | |
3f8ab7bd RS |
2807 | /* Used for debugging. Abort if any window has a dead buffer. */ |
2808 | ||
e3b27b31 | 2809 | extern void check_all_windows (void) EXTERNALLY_VISIBLE; |
233a4a2c | 2810 | void |
971de7fb | 2811 | check_all_windows (void) |
3f8ab7bd RS |
2812 | { |
2813 | window_loop (CHECK_ALL_WINDOWS, Qnil, 1, Qt); | |
2814 | } | |
2815 | ||
a7ca3326 | 2816 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 0, 2, 0, |
fec89261 | 2817 | doc: /* Return a window currently displaying BUFFER-OR-NAME, or nil if none. |
496e208e MR |
2818 | BUFFER-OR-NAME may be a buffer or a buffer name and defaults to |
2819 | the current buffer. | |
2820 | ||
2821 | The optional argument ALL-FRAMES specifies the frames to consider: | |
2822 | ||
2823 | - t means consider all windows on all existing frames. | |
2824 | ||
2825 | - `visible' means consider all windows on all visible frames. | |
2826 | ||
2827 | - 0 (the number zero) means consider all windows on all visible | |
2828 | and iconified frames. | |
2829 | ||
2830 | - A frame means consider all windows on that frame only. | |
2831 | ||
2832 | Any other value of ALL-FRAMES means consider all windows on the | |
2833 | selected frame and no others. */) | |
2834 | (Lisp_Object buffer_or_name, Lisp_Object all_frames) | |
7ab12479 | 2835 | { |
fec89261 MR |
2836 | Lisp_Object buffer; |
2837 | ||
2838 | if (NILP (buffer_or_name)) | |
2839 | buffer = Fcurrent_buffer (); | |
2840 | else | |
2841 | buffer = Fget_buffer (buffer_or_name); | |
2842 | ||
017b2bad | 2843 | if (BUFFERP (buffer)) |
496e208e | 2844 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, all_frames); |
7ab12479 JB |
2845 | else |
2846 | return Qnil; | |
2847 | } | |
2848 | ||
4b66faf3 | 2849 | static Lisp_Object |
880e6158 MR |
2850 | resize_root_window (Lisp_Object window, Lisp_Object delta, Lisp_Object horizontal, Lisp_Object ignore, Lisp_Object pixelwise) |
2851 | { | |
2852 | return call5 (Qwindow_resize_root_window, window, delta, horizontal, ignore, pixelwise); | |
2853 | } | |
2854 | ||
2855 | ||
2856 | static Lisp_Object | |
2857 | window_pixel_to_total (Lisp_Object frame, Lisp_Object horizontal) | |
1a13852e | 2858 | { |
880e6158 | 2859 | return call2(Qwindow_pixel_to_total, frame, horizontal); |
1a13852e MR |
2860 | } |
2861 | ||
2862 | ||
2863 | DEFUN ("delete-other-windows-internal", Fdelete_other_windows_internal, | |
2864 | Sdelete_other_windows_internal, 0, 2, "", | |
2865 | doc: /* Make WINDOW fill its frame. | |
52162052 MR |
2866 | Only the frame WINDOW is on is affected. WINDOW must be a valid window |
2867 | and defaults to the selected one. | |
1a13852e | 2868 | |
be7f5545 MR |
2869 | Optional argument ROOT, if non-nil, must specify an internal window such |
2870 | that WINDOW is in its window subtree. If this is the case, replace ROOT | |
2871 | by WINDOW and leave alone any windows not part of ROOT's subtree. | |
1a13852e MR |
2872 | |
2873 | When WINDOW is live try to reduce display jumps by keeping the text | |
2874 | previously visible in WINDOW in the same place on the frame. Doing this | |
2875 | depends on the value of (window-start WINDOW), so if calling this | |
2876 | function in a program gives strange scrolling, make sure the | |
2877 | window-start value is reasonable when this function is called. */) | |
2878 | (Lisp_Object window, Lisp_Object root) | |
2879 | { | |
2880 | struct window *w, *r, *s; | |
2881 | struct frame *f; | |
46a4ce9e | 2882 | Lisp_Object sibling, pwindow, swindow IF_LINT (= Qnil), delta; |
c54aa166 | 2883 | ptrdiff_t startpos IF_LINT (= 0), startbyte IF_LINT (= 0); |
46a4ce9e | 2884 | int top IF_LINT (= 0), new_top, resize_failed; |
1a13852e | 2885 | |
52162052 | 2886 | w = decode_valid_window (window); |
1a13852e | 2887 | XSETWINDOW (window, w); |
d3d50620 | 2888 | f = XFRAME (w->frame); |
1a13852e MR |
2889 | |
2890 | if (NILP (root)) | |
2891 | /* ROOT is the frame's root window. */ | |
2892 | { | |
2893 | root = FRAME_ROOT_WINDOW (f); | |
2894 | r = XWINDOW (root); | |
2895 | } | |
2896 | else | |
2897 | /* ROOT must be an ancestor of WINDOW. */ | |
2898 | { | |
52162052 | 2899 | r = decode_valid_window (root); |
d3d50620 | 2900 | pwindow = XWINDOW (window)->parent; |
1a13852e MR |
2901 | while (!NILP (pwindow)) |
2902 | if (EQ (pwindow, root)) | |
2903 | break; | |
2904 | else | |
d3d50620 | 2905 | pwindow = XWINDOW (pwindow)->parent; |
1a13852e MR |
2906 | if (!EQ (pwindow, root)) |
2907 | error ("Specified root is not an ancestor of specified window"); | |
2908 | } | |
2909 | ||
2910 | if (EQ (window, root)) | |
2911 | /* A noop. */ | |
2912 | return Qnil; | |
2913 | /* I don't understand the "top > 0" part below. If we deal with a | |
2914 | standalone minibuffer it would have been caught by the preceding | |
2915 | test. */ | |
2916 | else if (MINI_WINDOW_P (w)) /* && top > 0) */ | |
2917 | error ("Can't expand minibuffer to full frame"); | |
2918 | ||
e74aeda8 | 2919 | if (BUFFERP (w->contents)) |
1a13852e | 2920 | { |
d3d50620 | 2921 | startpos = marker_position (w->start); |
c54aa166 | 2922 | startbyte = marker_byte_position (w->start); |
880e6158 MR |
2923 | top = (WINDOW_TOP_EDGE_LINE (w) |
2924 | - FRAME_TOP_MARGIN (XFRAME (WINDOW_FRAME (w)))); | |
1a13852e MR |
2925 | /* Make sure WINDOW is the frame's selected window. */ |
2926 | if (!EQ (window, FRAME_SELECTED_WINDOW (f))) | |
2927 | { | |
d3d50620 | 2928 | if (EQ (selected_frame, w->frame)) |
1a13852e MR |
2929 | Fselect_window (window, Qnil); |
2930 | else | |
f00af5b1 | 2931 | fset_selected_window (f, window); |
1a13852e MR |
2932 | } |
2933 | } | |
2934 | else | |
2935 | { | |
be7f5545 MR |
2936 | /* See if the frame's selected window is a part of the window |
2937 | subtree rooted at WINDOW, by finding all the selected window's | |
2938 | parents and comparing each one with WINDOW. If it isn't we | |
2939 | need a new selected window for this frame. */ | |
1a13852e MR |
2940 | swindow = FRAME_SELECTED_WINDOW (f); |
2941 | while (1) | |
2942 | { | |
2943 | pwindow = swindow; | |
2944 | while (!NILP (pwindow) && !EQ (window, pwindow)) | |
d3d50620 | 2945 | pwindow = XWINDOW (pwindow)->parent; |
1a13852e MR |
2946 | |
2947 | if (EQ (window, pwindow)) | |
2948 | /* If WINDOW is an ancestor of SWINDOW, then SWINDOW is ok | |
2949 | as the new selected window. */ | |
2950 | break; | |
2951 | else | |
2952 | /* Else try the previous window of SWINDOW. */ | |
2953 | swindow = Fprevious_window (swindow, Qlambda, Qnil); | |
2954 | } | |
2955 | ||
2956 | if (!EQ (swindow, FRAME_SELECTED_WINDOW (f))) | |
2957 | { | |
d3d50620 | 2958 | if (EQ (selected_frame, w->frame)) |
1a13852e MR |
2959 | Fselect_window (swindow, Qnil); |
2960 | else | |
f00af5b1 | 2961 | fset_selected_window (f, swindow); |
1a13852e MR |
2962 | } |
2963 | } | |
2964 | ||
4d7e6e51 | 2965 | block_input (); |
4c5501e9 EZ |
2966 | if (!FRAME_INITIAL_P (f)) |
2967 | { | |
9fed9729 | 2968 | Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f); |
4c5501e9 EZ |
2969 | |
2970 | /* We are going to free the glyph matrices of WINDOW, and with | |
2971 | that we might lose any information about glyph rows that have | |
2972 | some of their glyphs highlighted in mouse face. (These rows | |
2973 | are marked with a non-zero mouse_face_p flag.) If WINDOW | |
2974 | indeed has some glyphs highlighted in mouse face, signal to | |
2975 | frame's up-to-date hook that mouse highlight was overwritten, | |
2976 | so that it will arrange for redisplaying the highlight. */ | |
2977 | if (EQ (hlinfo->mouse_face_window, window)) | |
9fed9729 | 2978 | reset_mouse_highlight (hlinfo); |
a6b1c7cc | 2979 | } |
1a13852e MR |
2980 | free_window_matrices (r); |
2981 | ||
94ae2ad4 | 2982 | windows_or_buffers_changed = 27; |
1a13852e MR |
2983 | Vwindow_list = Qnil; |
2984 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; | |
46a4ce9e | 2985 | resize_failed = 0; |
1a13852e | 2986 | |
e74aeda8 | 2987 | if (!WINDOW_LEAF_P (w)) |
1a13852e | 2988 | { |
be7f5545 | 2989 | /* Resize child windows vertically. */ |
880e6158 MR |
2990 | XSETINT (delta, r->pixel_height - w->pixel_height); |
2991 | w->pixel_top = r->pixel_top; | |
5f24fa51 | 2992 | w->top_line = r->top_line; |
880e6158 | 2993 | resize_root_window (window, delta, Qnil, Qnil, Qt); |
d615d6d2 | 2994 | if (window_resize_check (w, 0)) |
880e6158 MR |
2995 | { |
2996 | window_resize_apply (w, 0); | |
2997 | window_pixel_to_total (w->frame, Qnil); | |
2998 | } | |
1a13852e MR |
2999 | else |
3000 | { | |
880e6158 | 3001 | resize_root_window (window, delta, Qnil, Qt, Qt); |
d615d6d2 | 3002 | if (window_resize_check (w, 0)) |
880e6158 MR |
3003 | { |
3004 | window_resize_apply (w, 0); | |
3005 | window_pixel_to_total (w->frame, Qnil); | |
3006 | } | |
1a13852e MR |
3007 | else |
3008 | resize_failed = 1; | |
3009 | } | |
3010 | ||
be7f5545 | 3011 | /* Resize child windows horizontally. */ |
1a13852e MR |
3012 | if (!resize_failed) |
3013 | { | |
5f24fa51 | 3014 | w->left_col = r->left_col; |
880e6158 MR |
3015 | w->pixel_left = r->pixel_left; |
3016 | XSETINT (delta, r->pixel_width - w->pixel_width); | |
3017 | resize_root_window (window, delta, Qt, Qnil, Qt); | |
d615d6d2 | 3018 | if (window_resize_check (w, 1)) |
880e6158 MR |
3019 | { |
3020 | window_resize_apply (w, 1); | |
3021 | window_pixel_to_total (w->frame, Qt); | |
3022 | } | |
1a13852e MR |
3023 | else |
3024 | { | |
880e6158 | 3025 | resize_root_window (window, delta, Qt, Qt, Qt); |
d615d6d2 | 3026 | if (window_resize_check (w, 1)) |
880e6158 MR |
3027 | { |
3028 | window_resize_apply (w, 1); | |
3029 | window_pixel_to_total (w->frame, Qt); | |
3030 | } | |
1a13852e MR |
3031 | else |
3032 | resize_failed = 1; | |
3033 | } | |
3034 | } | |
3035 | ||
3036 | if (resize_failed) | |
3037 | /* Play safe, if we still can ... */ | |
3038 | { | |
3039 | window = swindow; | |
3040 | w = XWINDOW (window); | |
3041 | } | |
3042 | } | |
3043 | ||
3044 | /* Cleanly unlink WINDOW from window-tree. */ | |
d3d50620 | 3045 | if (!NILP (w->prev)) |
1a13852e MR |
3046 | /* Get SIBLING above (on the left of) WINDOW. */ |
3047 | { | |
d3d50620 | 3048 | sibling = w->prev; |
1a13852e | 3049 | s = XWINDOW (sibling); |
e8c17b81 | 3050 | wset_next (s, w->next); |
d3d50620 | 3051 | if (!NILP (s->next)) |
e8c17b81 | 3052 | wset_prev (XWINDOW (s->next), sibling); |
1a13852e MR |
3053 | } |
3054 | else | |
3055 | /* Get SIBLING below (on the right of) WINDOW. */ | |
3056 | { | |
d3d50620 | 3057 | sibling = w->next; |
1a13852e | 3058 | s = XWINDOW (sibling); |
e8c17b81 | 3059 | wset_prev (s, Qnil); |
e74aeda8 DA |
3060 | wset_combination (XWINDOW (w->parent), |
3061 | XWINDOW (w->parent)->horizontal, sibling); | |
1a13852e MR |
3062 | } |
3063 | ||
be7f5545 | 3064 | /* Delete ROOT and all child windows of ROOT. */ |
e74aeda8 | 3065 | if (WINDOWP (r->contents)) |
1a13852e | 3066 | { |
e74aeda8 DA |
3067 | delete_all_child_windows (r->contents); |
3068 | wset_combination (r, 0, Qnil); | |
1a13852e MR |
3069 | } |
3070 | ||
3071 | replace_window (root, window, 1); | |
3072 | ||
7ffe7ef6 | 3073 | /* This must become SWINDOW anyway ....... */ |
e74aeda8 | 3074 | if (BUFFERP (w->contents) && !resize_failed) |
1a13852e MR |
3075 | { |
3076 | /* Try to minimize scrolling, by setting the window start to the | |
3077 | point will cause the text at the old window start to be at the | |
3078 | same place on the frame. But don't try to do this if the | |
3079 | window start is outside the visible portion (as might happen | |
3080 | when the display is not current, due to typeahead). */ | |
3081 | new_top = WINDOW_TOP_EDGE_LINE (w) - FRAME_TOP_MARGIN (XFRAME (WINDOW_FRAME (w))); | |
3082 | if (new_top != top | |
e74aeda8 DA |
3083 | && startpos >= BUF_BEGV (XBUFFER (w->contents)) |
3084 | && startpos <= BUF_ZV (XBUFFER (w->contents))) | |
1a13852e MR |
3085 | { |
3086 | struct position pos; | |
3087 | struct buffer *obuf = current_buffer; | |
3088 | ||
e74aeda8 | 3089 | Fset_buffer (w->contents); |
1a13852e MR |
3090 | /* This computation used to temporarily move point, but that |
3091 | can have unwanted side effects due to text properties. */ | |
c54aa166 | 3092 | pos = *vmotion (startpos, startbyte, -top, w); |
1a13852e | 3093 | |
e74aeda8 | 3094 | set_marker_both (w->start, w->contents, pos.bufpos, pos.bytepos); |
9d93ce29 | 3095 | w->window_end_valid = 0; |
c98ff5dd DA |
3096 | w->start_at_line_beg = (pos.bytepos == BEGV_BYTE |
3097 | || FETCH_BYTE (pos.bytepos - 1) == '\n'); | |
1a13852e MR |
3098 | /* We need to do this, so that the window-scroll-functions |
3099 | get called. */ | |
c98ff5dd | 3100 | w->optional_new_start = 1; |
1a13852e MR |
3101 | |
3102 | set_buffer_internal (obuf); | |
3103 | } | |
3104 | } | |
3105 | ||
bd0443bb | 3106 | adjust_frame_glyphs (f); |
4d7e6e51 | 3107 | unblock_input (); |
1a13852e MR |
3108 | |
3109 | run_window_configuration_change_hook (f); | |
3110 | ||
3111 | return Qnil; | |
3112 | } | |
3113 | ||
3114 | ||
9397e56f MR |
3115 | void |
3116 | replace_buffer_in_windows (Lisp_Object buffer) | |
7ab12479 | 3117 | { |
9397e56f | 3118 | call1 (Qreplace_buffer_in_windows, buffer); |
7ab12479 JB |
3119 | } |
3120 | ||
c6afe371 DA |
3121 | /* If BUFFER is shown in a window, safely replace it with some other |
3122 | buffer in all windows of all frames, even those on other keyboards. */ | |
ff58478b RS |
3123 | |
3124 | void | |
9397e56f | 3125 | replace_buffer_in_windows_safely (Lisp_Object buffer) |
ff58478b | 3126 | { |
c6afe371 DA |
3127 | if (buffer_window_count (XBUFFER (buffer))) |
3128 | { | |
3129 | Lisp_Object tail, frame; | |
ff58478b | 3130 | |
c6afe371 DA |
3131 | /* A single call to window_loop won't do the job because it only |
3132 | considers frames on the current keyboard. So loop manually over | |
3133 | frames, and handle each one. */ | |
3134 | FOR_EACH_FRAME (tail, frame) | |
3135 | window_loop (REPLACE_BUFFER_IN_WINDOWS_SAFELY, buffer, 1, frame); | |
3136 | } | |
ff58478b | 3137 | } |
c6afe371 | 3138 | |
880e6158 MR |
3139 | /* If *HEIGHT or *WIDTH are too small a size for FRAME, set them to the |
3140 | minimum allowable size. PIXELWISE means interpret these as pixel | |
3141 | sizes. */ | |
5500c422 | 3142 | |
605be8af | 3143 | void |
880e6158 | 3144 | check_frame_size (struct frame *frame, int *width, int *height, bool pixelwise) |
a481b3ea | 3145 | { |
628df3bf | 3146 | /* For height, we have to see: |
54b8bcb5 RS |
3147 | how many windows the frame has at minimum (one or two), |
3148 | and whether it has a menu bar or other special stuff at the top. */ | |
880e6158 MR |
3149 | if (pixelwise) |
3150 | { | |
3151 | int min_height = MIN_SAFE_WINDOW_HEIGHT * FRAME_LINE_HEIGHT (frame); | |
3152 | int min_width = MIN_SAFE_WINDOW_WIDTH * FRAME_COLUMN_WIDTH (frame); | |
177c0ea7 | 3153 | |
880e6158 MR |
3154 | if (!FRAME_MINIBUF_ONLY_P (frame) && FRAME_HAS_MINIBUF_P (frame)) |
3155 | min_height = 2 * min_height; | |
a481b3ea | 3156 | |
880e6158 MR |
3157 | min_height += FRAME_TOP_MARGIN_HEIGHT (frame); |
3158 | ||
3159 | if (*height < min_height) | |
3160 | *height = min_height; | |
3161 | if (*width < min_width) | |
3162 | *width = min_width; | |
3163 | } | |
3164 | else | |
3165 | { | |
3166 | int min_height | |
3167 | = ((FRAME_MINIBUF_ONLY_P (frame) || ! FRAME_HAS_MINIBUF_P (frame)) | |
3168 | ? MIN_SAFE_WINDOW_HEIGHT | |
3169 | : 2 * MIN_SAFE_WINDOW_HEIGHT); | |
3170 | ||
3171 | if (FRAME_TOP_MARGIN (frame) > 0) | |
3172 | min_height += FRAME_TOP_MARGIN (frame); | |
3173 | ||
3174 | if (*height < min_height) | |
3175 | *height = min_height; | |
3176 | if (*width < MIN_SAFE_WINDOW_WIDTH) | |
3177 | *width = MIN_SAFE_WINDOW_WIDTH; | |
3178 | } | |
a481b3ea JB |
3179 | } |
3180 | ||
79fd290e | 3181 | /* Adjust the margins of window W if text area is too small. |
949cf20f KS |
3182 | Return 1 if window width is ok after adjustment; 0 if window |
3183 | is still too narrow. */ | |
3184 | ||
3185 | static int | |
971de7fb | 3186 | adjust_window_margins (struct window *w) |
949cf20f | 3187 | { |
880e6158 MR |
3188 | int box_width = (WINDOW_PIXEL_WIDTH (w) |
3189 | - WINDOW_FRINGES_WIDTH (w) | |
3190 | - WINDOW_SCROLL_BAR_AREA_WIDTH (w)); | |
3191 | int margin_width = WINDOW_MARGINS_WIDTH (w); | |
949cf20f | 3192 | |
880e6158 | 3193 | if (box_width - margin_width >= MIN_SAFE_WINDOW_PIXEL_WIDTH (w)) |
949cf20f KS |
3194 | return 1; |
3195 | ||
880e6158 | 3196 | if (margin_width < 0 || box_width < MIN_SAFE_WINDOW_PIXEL_WIDTH (w)) |
949cf20f | 3197 | return 0; |
880e6158 MR |
3198 | else |
3199 | /* Window's text area is too narrow, but reducing the window | |
3200 | margins will fix that. */ | |
949cf20f | 3201 | { |
880e6158 MR |
3202 | int unit = WINDOW_FRAME_COLUMN_WIDTH (w); |
3203 | ||
3204 | margin_width = box_width - MIN_SAFE_WINDOW_PIXEL_WIDTH (w); | |
3205 | ||
3206 | if (WINDOW_RIGHT_MARGIN_WIDTH (w) > 0) | |
3207 | { | |
3208 | if (WINDOW_LEFT_MARGIN_WIDTH (w) > 0) | |
3209 | w->left_margin_cols = w->right_margin_cols = | |
3210 | margin_width / (2 * unit); | |
3211 | else | |
3212 | w->right_margin_cols = margin_width / unit; | |
3213 | } | |
949cf20f | 3214 | else |
880e6158 MR |
3215 | w->left_margin_cols = margin_width / unit; |
3216 | ||
3217 | return 1; | |
949cf20f | 3218 | } |
949cf20f | 3219 | } |
562dd5e9 | 3220 | \f |
9397e56f MR |
3221 | /* The following three routines are needed for running a window's |
3222 | configuration change hook. */ | |
562dd5e9 MR |
3223 | static void |
3224 | run_funs (Lisp_Object funs) | |
3225 | { | |
3226 | for (; CONSP (funs); funs = XCDR (funs)) | |
3227 | if (!EQ (XCAR (funs), Qt)) | |
3228 | call0 (XCAR (funs)); | |
3229 | } | |
6b61353c | 3230 | |
27e498e6 | 3231 | static void |
9397e56f MR |
3232 | select_window_norecord (Lisp_Object window) |
3233 | { | |
27e498e6 PE |
3234 | if (WINDOW_LIVE_P (window)) |
3235 | Fselect_window (window, Qt); | |
9397e56f MR |
3236 | } |
3237 | ||
27e498e6 | 3238 | static void |
9397e56f MR |
3239 | select_frame_norecord (Lisp_Object frame) |
3240 | { | |
27e498e6 PE |
3241 | if (FRAME_LIVE_P (XFRAME (frame))) |
3242 | Fselect_frame (frame, Qt); | |
9397e56f | 3243 | } |
6b61353c | 3244 | |
562dd5e9 MR |
3245 | void |
3246 | run_window_configuration_change_hook (struct frame *f) | |
3247 | { | |
d311d28c | 3248 | ptrdiff_t count = SPECPDL_INDEX (); |
562dd5e9 MR |
3249 | Lisp_Object frame, global_wcch |
3250 | = Fdefault_value (Qwindow_configuration_change_hook); | |
3251 | XSETFRAME (frame, f); | |
6b61353c | 3252 | |
d1f55f16 | 3253 | if (NILP (Vrun_hooks) || !NILP (inhibit_lisp_code)) |
562dd5e9 | 3254 | return; |
6b61353c | 3255 | |
562dd5e9 MR |
3256 | /* Use the right buffer. Matters when running the local hooks. */ |
3257 | if (current_buffer != XBUFFER (Fwindow_buffer (Qnil))) | |
6b61353c | 3258 | { |
66322887 | 3259 | record_unwind_current_buffer (); |
562dd5e9 MR |
3260 | Fset_buffer (Fwindow_buffer (Qnil)); |
3261 | } | |
6a44ffb3 | 3262 | |
1a13852e MR |
3263 | if (SELECTED_FRAME () != f) |
3264 | { | |
d2a95ffb | 3265 | record_unwind_protect (select_frame_norecord, selected_frame); |
1a13852e MR |
3266 | select_frame_norecord (frame); |
3267 | } | |
3268 | ||
6a44ffb3 SM |
3269 | /* Look for buffer-local values. */ |
3270 | { | |
3271 | Lisp_Object windows = Fwindow_list (frame, Qlambda, Qnil); | |
3272 | for (; CONSP (windows); windows = XCDR (windows)) | |
3273 | { | |
3274 | Lisp_Object window = XCAR (windows); | |
3275 | Lisp_Object buffer = Fwindow_buffer (window); | |
3276 | if (!NILP (Flocal_variable_p (Qwindow_configuration_change_hook, | |
3277 | buffer))) | |
3278 | { | |
d311d28c | 3279 | ptrdiff_t inner_count = SPECPDL_INDEX (); |
d2a95ffb | 3280 | record_unwind_protect (select_window_norecord, selected_window); |
6a44ffb3 SM |
3281 | select_window_norecord (window); |
3282 | run_funs (Fbuffer_local_value (Qwindow_configuration_change_hook, | |
3283 | buffer)); | |
46a4ce9e | 3284 | unbind_to (inner_count, Qnil); |
fec89261 | 3285 | } |
6a44ffb3 SM |
3286 | } |
3287 | } | |
047aaeb9 | 3288 | |
6a44ffb3 SM |
3289 | run_funs (global_wcch); |
3290 | unbind_to (count, Qnil); | |
ef264c42 SM |
3291 | } |
3292 | ||
1a13852e | 3293 | DEFUN ("run-window-configuration-change-hook", Frun_window_configuration_change_hook, |
d9f07150 | 3294 | Srun_window_configuration_change_hook, 0, 1, 0, |
68f8f1c0 | 3295 | doc: /* Run `window-configuration-change-hook' for FRAME. |
d9f07150 | 3296 | If FRAME is omitted or nil, it defaults to the selected frame. */) |
c4b6914d | 3297 | (Lisp_Object frame) |
1a13852e | 3298 | { |
d9f07150 | 3299 | run_window_configuration_change_hook (decode_live_frame (frame)); |
1a13852e MR |
3300 | return Qnil; |
3301 | } | |
3302 | ||
880e6158 MR |
3303 | DEFUN ("run-window-scroll-functions", Frun_window_scroll_functions, |
3304 | Srun_window_scroll_functions, 0, 1, 0, | |
3305 | doc: /* Run `window-scroll-functions' for WINDOW. | |
3306 | If WINDOW is omitted or nil, it defaults to the selected window. */) | |
3307 | (Lisp_Object window) | |
3308 | { | |
3309 | if (! NILP (Vwindow_scroll_functions)) | |
3310 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
3311 | Fmarker_position (decode_live_window (window)->start)); | |
3312 | return Qnil; | |
3313 | } | |
3314 | ||
3315 | /* Make WINDOW display BUFFER. RUN_HOOKS_P non-zero means it's allowed | |
3316 | to run hooks. See make_frame for a case where it's not allowed. | |
3317 | KEEP_MARGINS_P non-zero means that the current margins, fringes, and | |
3318 | scroll-bar settings of the window are not reset from the buffer's | |
3319 | local settings. */ | |
7ab12479 | 3320 | |
5500c422 | 3321 | void |
748fa866 DA |
3322 | set_window_buffer (Lisp_Object window, Lisp_Object buffer, |
3323 | bool run_hooks_p, bool keep_margins_p) | |
5500c422 GM |
3324 | { |
3325 | struct window *w = XWINDOW (window); | |
3326 | struct buffer *b = XBUFFER (buffer); | |
d311d28c | 3327 | ptrdiff_t count = SPECPDL_INDEX (); |
880e6158 | 3328 | bool samebuf = EQ (buffer, w->contents); |
7ab12479 | 3329 | |
e8c17b81 | 3330 | wset_buffer (w, buffer); |
86e48436 RS |
3331 | |
3332 | if (EQ (window, selected_window)) | |
39eb03f1 | 3333 | bset_last_selected_window (b, window); |
beb4e312 | 3334 | |
c49a0495 KS |
3335 | /* Let redisplay errors through. */ |
3336 | b->display_error_modiff = 0; | |
3337 | ||
beb4e312 | 3338 | /* Update time stamps of buffer display. */ |
4b4deea2 | 3339 | if (INTEGERP (BVAR (b, display_count))) |
39eb03f1 PE |
3340 | bset_display_count (b, make_number (XINT (BVAR (b, display_count)) + 1)); |
3341 | bset_display_time (b, Fcurrent_time ()); | |
86e48436 | 3342 | |
02455cb6 DA |
3343 | w->window_end_pos = 0; |
3344 | w->window_end_vpos = 0; | |
c80016b3 | 3345 | w->last_cursor_vpos = 0; |
9d93ce29 | 3346 | |
c3b232e4 | 3347 | if (!(keep_margins_p && samebuf)) |
23fe745a | 3348 | { /* If we're not actually changing the buffer, don't reset hscroll and |
c3b232e4 SM |
3349 | vscroll. This case happens for example when called from |
3350 | change_frame_size_1, where we use a dummy call to | |
3351 | Fset_window_buffer on the frame's selected window (and no other) | |
3352 | just in order to run window-configuration-change-hook. | |
3353 | Resetting hscroll and vscroll here is problematic for things like | |
3354 | image-mode and doc-view-mode since it resets the image's position | |
3355 | whenever we resize the frame. */ | |
80b00b08 | 3356 | w->hscroll = w->min_hscroll = 0; |
c3b232e4 | 3357 | w->vscroll = 0; |
d3d50620 DA |
3358 | set_marker_both (w->pointm, buffer, BUF_PT (b), BUF_PT_BYTE (b)); |
3359 | set_marker_restricted (w->start, | |
c3b232e4 SM |
3360 | make_number (b->last_window_start), |
3361 | buffer); | |
c98ff5dd DA |
3362 | w->start_at_line_beg = 0; |
3363 | w->force_start = 0; | |
c3b232e4 SM |
3364 | } |
3365 | /* Maybe we could move this into the `if' but it's not obviously safe and | |
3366 | I doubt it's worth the trouble. */ | |
94ae2ad4 | 3367 | windows_or_buffers_changed = 28; |
5b03d3c0 | 3368 | |
da39107c | 3369 | /* We must select BUFFER for running the window-scroll-functions. */ |
5b03d3c0 RS |
3370 | /* We can't check ! NILP (Vwindow_scroll_functions) here |
3371 | because that might itself be a local variable. */ | |
da39107c | 3372 | if (window_initialized) |
5b03d3c0 | 3373 | { |
66322887 | 3374 | record_unwind_current_buffer (); |
5b03d3c0 RS |
3375 | Fset_buffer (buffer); |
3376 | } | |
3377 | ||
d3d50620 | 3378 | XMARKER (w->pointm)->insertion_type = !NILP (Vwindow_point_insertion_type); |
a1562258 | 3379 | |
949cf20f KS |
3380 | if (!keep_margins_p) |
3381 | { | |
3382 | /* Set left and right marginal area width etc. from buffer. */ | |
25554267 DA |
3383 | set_window_fringes (w, BVAR (b, left_fringe_width), |
3384 | BVAR (b, right_fringe_width), | |
3385 | BVAR (b, fringes_outside_margins)); | |
3386 | set_window_scroll_bars (w, BVAR (b, scroll_bar_width), | |
3387 | BVAR (b, vertical_scroll_bar_type), Qnil); | |
3388 | set_window_margins (w, BVAR (b, left_margin_cols), | |
3389 | BVAR (b, right_margin_cols)); | |
3390 | apply_window_adjustment (w); | |
949cf20f | 3391 | } |
7ab12479 | 3392 | |
5500c422 GM |
3393 | if (run_hooks_p) |
3394 | { | |
3395 | if (! NILP (Vwindow_scroll_functions)) | |
3396 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
d3d50620 | 3397 | Fmarker_position (w->start)); |
880e6158 MR |
3398 | if (!samebuf) |
3399 | run_window_configuration_change_hook (XFRAME (WINDOW_FRAME (w))); | |
5500c422 | 3400 | } |
543f5fb1 | 3401 | |
5b03d3c0 | 3402 | unbind_to (count, Qnil); |
5500c422 | 3403 | } |
5b03d3c0 | 3404 | |
a7ca3326 | 3405 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 3, 0, |
880e6158 | 3406 | doc: /* Make WINDOW display BUFFER-OR-NAME. |
52162052 | 3407 | WINDOW must be a live window and defaults to the selected one. |
9397e56f MR |
3408 | BUFFER-OR-NAME must be a buffer or the name of an existing buffer. |
3409 | ||
3410 | Optional third argument KEEP-MARGINS non-nil means that WINDOW's current | |
3411 | display margins, fringe widths, and scroll bar settings are preserved; | |
3412 | the default is to reset these from the local settings for BUFFER-OR-NAME | |
3413 | or the frame defaults. Return nil. | |
d653c8cc | 3414 | |
7bfac547 MR |
3415 | This function throws an error when WINDOW is strongly dedicated to its |
3416 | buffer (that is `window-dedicated-p' returns t for WINDOW) and does not | |
3417 | already display BUFFER-OR-NAME. | |
6cb4a892 | 3418 | |
8fef9de1 MR |
3419 | This function runs `window-scroll-functions' before running |
3420 | `window-configuration-change-hook'. */) | |
5842a27b | 3421 | (register Lisp_Object window, Lisp_Object buffer_or_name, Lisp_Object keep_margins) |
5500c422 | 3422 | { |
d653c8cc | 3423 | register Lisp_Object tem, buffer; |
52162052 | 3424 | register struct window *w = decode_live_window (window); |
5500c422 | 3425 | |
bed0c171 | 3426 | XSETWINDOW (window, w); |
d653c8cc | 3427 | buffer = Fget_buffer (buffer_or_name); |
b7826503 | 3428 | CHECK_BUFFER (buffer); |
e578f381 | 3429 | if (!BUFFER_LIVE_P (XBUFFER (buffer))) |
5500c422 GM |
3430 | error ("Attempt to display deleted buffer"); |
3431 | ||
e74aeda8 | 3432 | tem = w->contents; |
aac0c6e3 MR |
3433 | if (NILP (tem)) |
3434 | error ("Window is deleted"); | |
822995f8 | 3435 | else |
5500c422 | 3436 | { |
9397e56f MR |
3437 | if (!EQ (tem, buffer)) |
3438 | { | |
d3d50620 | 3439 | if (EQ (w->dedicated, Qt)) |
9397e56f MR |
3440 | /* WINDOW is strongly dedicated to its buffer, signal an |
3441 | error. */ | |
3442 | error ("Window is dedicated to `%s'", SDATA (BVAR (XBUFFER (tem), name))); | |
3443 | else | |
3444 | /* WINDOW is weakly dedicated to its buffer, reset | |
e4769531 | 3445 | dedication. */ |
e8c17b81 | 3446 | wset_dedicated (w, Qnil); |
9397e56f MR |
3447 | |
3448 | call1 (Qrecord_window_buffer, window); | |
3449 | } | |
5500c422 GM |
3450 | |
3451 | unshow_buffer (w); | |
3452 | } | |
3453 | ||
949cf20f | 3454 | set_window_buffer (window, buffer, 1, !NILP (keep_margins)); |
7ab12479 | 3455 | |
9397e56f | 3456 | return Qnil; |
c6932ecd | 3457 | } |
b7354ddf | 3458 | \f |
7e5cf297 | 3459 | static Lisp_Object |
971de7fb | 3460 | display_buffer (Lisp_Object buffer, Lisp_Object not_this_window_p, Lisp_Object override_frame) |
d07f802a | 3461 | { |
87478b52 | 3462 | return call3 (Qdisplay_buffer, buffer, not_this_window_p, override_frame); |
d07f802a RS |
3463 | } |
3464 | ||
6b61353c KH |
3465 | DEFUN ("force-window-update", Fforce_window_update, Sforce_window_update, |
3466 | 0, 1, 0, | |
5a1048a5 | 3467 | doc: /* Force all windows to be updated on next redisplay. |
6b61353c | 3468 | If optional arg OBJECT is a window, force redisplay of that window only. |
0cc1039f | 3469 | If OBJECT is a buffer or buffer name, force redisplay of all windows |
6b61353c | 3470 | displaying that buffer. */) |
5842a27b | 3471 | (Lisp_Object object) |
6b61353c KH |
3472 | { |
3473 | if (NILP (object)) | |
3474 | { | |
94ae2ad4 | 3475 | windows_or_buffers_changed = 29; |
2ec9db5d | 3476 | update_mode_lines = 28; |
6b61353c KH |
3477 | return Qt; |
3478 | } | |
3479 | ||
3480 | if (WINDOWP (object)) | |
3481 | { | |
3482 | struct window *w = XWINDOW (object); | |
3483 | mark_window_display_accurate (object, 0); | |
c98ff5dd | 3484 | w->update_mode_line = 1; |
e74aeda8 DA |
3485 | if (BUFFERP (w->contents)) |
3486 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; | |
2ec9db5d | 3487 | update_mode_lines = 29; |
6b61353c KH |
3488 | return Qt; |
3489 | } | |
0cc1039f | 3490 | |
6b61353c KH |
3491 | if (STRINGP (object)) |
3492 | object = Fget_buffer (object); | |
c6afe371 DA |
3493 | if (BUFFERP (object) && BUFFER_LIVE_P (XBUFFER (object)) |
3494 | && buffer_window_count (XBUFFER (object))) | |
6b61353c | 3495 | { |
c6afe371 DA |
3496 | /* If buffer is live and shown in at least one window, find |
3497 | all windows showing this buffer and force update of them. */ | |
6b61353c KH |
3498 | object = window_loop (REDISPLAY_BUFFER_WINDOWS, object, 0, Qvisible); |
3499 | return NILP (object) ? Qnil : Qt; | |
3500 | } | |
3501 | ||
3502 | /* If nothing suitable was found, just return. | |
3503 | We could signal an error, but this feature will typically be used | |
3504 | asynchronously in timers or process sentinels, so we don't. */ | |
3505 | return Qnil; | |
3506 | } | |
3507 | ||
1f76f6f5 | 3508 | /* Obsolete since 24.3. */ |
7ab12479 | 3509 | void |
971de7fb | 3510 | temp_output_buffer_show (register Lisp_Object buf) |
7ab12479 JB |
3511 | { |
3512 | register struct buffer *old = current_buffer; | |
3513 | register Lisp_Object window; | |
3514 | register struct window *w; | |
3515 | ||
39eb03f1 | 3516 | bset_directory (XBUFFER (buf), BVAR (current_buffer, directory)); |
bccd3dd1 | 3517 | |
7ab12479 | 3518 | Fset_buffer (buf); |
c6367666 | 3519 | BUF_SAVE_MODIFF (XBUFFER (buf)) = MODIFF; |
7ab12479 JB |
3520 | BEGV = BEG; |
3521 | ZV = Z; | |
3522 | SET_PT (BEG); | |
7ab12479 JB |
3523 | set_buffer_internal (old); |
3524 | ||
e67a1dea | 3525 | if (!NILP (Vtemp_buffer_show_function)) |
7ab12479 | 3526 | call1 (Vtemp_buffer_show_function, buf); |
0a357e98 | 3527 | else if (WINDOW_LIVE_P (window = display_buffer (buf, Qnil, Qnil))) |
7ab12479 | 3528 | { |
d3d50620 | 3529 | if (!EQ (XWINDOW (window)->frame, selected_frame)) |
44fa5b1e | 3530 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); |
7ab12479 JB |
3531 | Vminibuf_scroll_window = window; |
3532 | w = XWINDOW (window); | |
80b00b08 DA |
3533 | w->hscroll = 0; |
3534 | w->min_hscroll = 0; | |
d3d50620 DA |
3535 | set_marker_restricted_both (w->start, buf, BEG, BEG); |
3536 | set_marker_restricted_both (w->pointm, buf, BEG, BEG); | |
a58ec57d | 3537 | |
beb4e312 | 3538 | /* Run temp-buffer-show-hook, with the chosen window selected |
a5731348 | 3539 | and its buffer current. */ |
dee091a3 | 3540 | { |
d311d28c | 3541 | ptrdiff_t count = SPECPDL_INDEX (); |
dee091a3 JD |
3542 | Lisp_Object prev_window, prev_buffer; |
3543 | prev_window = selected_window; | |
3544 | XSETBUFFER (prev_buffer, old); | |
3545 | ||
3546 | /* Select the window that was chosen, for running the hook. | |
3547 | Note: Both Fselect_window and select_window_norecord may | |
3548 | set-buffer to the buffer displayed in the window, | |
3549 | so we need to save the current buffer. --stef */ | |
27e498e6 | 3550 | record_unwind_protect (restore_buffer, prev_buffer); |
dee091a3 JD |
3551 | record_unwind_protect (select_window_norecord, prev_window); |
3552 | Fselect_window (window, Qt); | |
e74aeda8 | 3553 | Fset_buffer (w->contents); |
dee091a3 JD |
3554 | Frun_hooks (1, &Qtemp_buffer_show_hook); |
3555 | unbind_to (count, Qnil); | |
3556 | } | |
2cccc823 | 3557 | } |
7ab12479 JB |
3558 | } |
3559 | \f | |
1a13852e MR |
3560 | /* Make new window, have it replace WINDOW in window-tree, and make |
3561 | WINDOW its only vertical child (HORFLAG 1 means make WINDOW its only | |
3562 | horizontal child). */ | |
3563 | static void | |
748fa866 | 3564 | make_parent_window (Lisp_Object window, bool horflag) |
1a13852e MR |
3565 | { |
3566 | Lisp_Object parent; | |
3567 | register struct window *o, *p; | |
1a13852e MR |
3568 | |
3569 | o = XWINDOW (window); | |
3570 | p = allocate_window (); | |
aa754e6a | 3571 | memcpy ((char *) p + sizeof (struct vectorlike_header), |
62efea5e | 3572 | (char *) o + sizeof (struct vectorlike_header), |
663e2b3f | 3573 | word_size * VECSIZE (struct window)); |
e74aeda8 | 3574 | /* P's buffer slot may change from nil to a buffer... */ |
98a07056 | 3575 | adjust_window_count (p, 1); |
1a13852e MR |
3576 | XSETWINDOW (parent, p); |
3577 | ||
880e6158 MR |
3578 | p->sequence_number = ++sequence_number; |
3579 | ||
1a13852e MR |
3580 | replace_window (window, parent, 1); |
3581 | ||
e8c17b81 PE |
3582 | wset_next (o, Qnil); |
3583 | wset_prev (o, Qnil); | |
3584 | wset_parent (o, parent); | |
e74aeda8 | 3585 | /* ...but now P becomes an internal window. */ |
e8c17b81 PE |
3586 | wset_start (p, Qnil); |
3587 | wset_pointm (p, Qnil); | |
3588 | wset_buffer (p, Qnil); | |
e74aeda8 | 3589 | wset_combination (p, horflag, window); |
e8c17b81 PE |
3590 | wset_combination_limit (p, Qnil); |
3591 | wset_window_parameters (p, Qnil); | |
1a13852e MR |
3592 | } |
3593 | ||
496e208e MR |
3594 | /* Make new window from scratch. */ |
3595 | Lisp_Object | |
3596 | make_window (void) | |
3597 | { | |
3598 | Lisp_Object window; | |
3599 | register struct window *w; | |
3600 | ||
3601 | w = allocate_window (); | |
62efea5e DA |
3602 | /* Initialize Lisp data. Note that allocate_window initializes all |
3603 | Lisp data to nil, so do it only for slots which should not be nil. */ | |
e8c17b81 PE |
3604 | wset_normal_lines (w, make_float (1.0)); |
3605 | wset_normal_cols (w, make_float (1.0)); | |
3606 | wset_new_total (w, make_number (0)); | |
3607 | wset_new_normal (w, make_number (0)); | |
880e6158 | 3608 | wset_new_pixel (w, make_number (0)); |
e8c17b81 PE |
3609 | wset_start (w, Fmake_marker ()); |
3610 | wset_pointm (w, Fmake_marker ()); | |
3611 | wset_vertical_scroll_bar_type (w, Qt); | |
e99f70c8 SM |
3612 | /* These Lisp fields are marked specially so they're not set to nil by |
3613 | allocate_window. */ | |
3614 | wset_prev_buffers (w, Qnil); | |
3615 | wset_next_buffers (w, Qnil); | |
62efea5e DA |
3616 | |
3617 | /* Initialize non-Lisp data. Note that allocate_window zeroes out all | |
3618 | non-Lisp data, so do it only for slots which should not be zero. */ | |
496e208e | 3619 | w->nrows_scale_factor = w->ncols_scale_factor = 1; |
9e37ee3b | 3620 | w->left_fringe_width = w->right_fringe_width = -1; |
b9695828 | 3621 | w->mode_line_height = w->header_line_height = -1; |
29bf4de4 DA |
3622 | #ifdef HAVE_WINDOW_SYSTEM |
3623 | w->phys_cursor_type = NO_CURSOR; | |
496e208e | 3624 | w->phys_cursor_width = -1; |
29bf4de4 | 3625 | #endif |
880e6158 | 3626 | w->sequence_number = ++sequence_number; |
38a2c910 | 3627 | w->scroll_bar_width = -1; |
422ff52b | 3628 | w->column_number_displayed = -1; |
62efea5e | 3629 | |
496e208e MR |
3630 | /* Reset window_list. */ |
3631 | Vwindow_list = Qnil; | |
3632 | /* Return window. */ | |
3633 | XSETWINDOW (window, w); | |
3634 | return window; | |
3635 | } | |
3636 | \f | |
880e6158 MR |
3637 | DEFUN ("set-window-new-pixel", Fset_window_new_pixel, Sset_window_new_pixel, 2, 3, 0, |
3638 | doc: /* Set new pixel size of WINDOW to SIZE. | |
3639 | WINDOW must be a valid window and defaults to the selected one. | |
3640 | Return SIZE. | |
3641 | ||
3642 | Optional argument ADD non-nil means add SIZE to the new pixel size of | |
3643 | WINDOW and return the sum. | |
3644 | ||
3645 | Note: This function does not operate on any child windows of WINDOW. */) | |
3646 | (Lisp_Object window, Lisp_Object size, Lisp_Object add) | |
3647 | { | |
3648 | struct window *w = decode_valid_window (window); | |
3649 | ||
3650 | CHECK_NUMBER (size); | |
3651 | if (NILP (add)) | |
3652 | wset_new_pixel (w, size); | |
3653 | else | |
3654 | wset_new_pixel (w, make_number (XINT (w->new_pixel) + XINT (size))); | |
3655 | ||
3656 | return w->new_pixel; | |
3657 | } | |
3658 | ||
496e208e MR |
3659 | DEFUN ("set-window-new-total", Fset_window_new_total, Sset_window_new_total, 2, 3, 0, |
3660 | doc: /* Set new total size of WINDOW to SIZE. | |
52162052 | 3661 | WINDOW must be a valid window and defaults to the selected one. |
496e208e MR |
3662 | Return SIZE. |
3663 | ||
3664 | Optional argument ADD non-nil means add SIZE to the new total size of | |
3665 | WINDOW and return the sum. | |
3666 | ||
be7f5545 | 3667 | Note: This function does not operate on any child windows of WINDOW. */) |
496e208e MR |
3668 | (Lisp_Object window, Lisp_Object size, Lisp_Object add) |
3669 | { | |
52162052 | 3670 | struct window *w = decode_valid_window (window); |
496e208e MR |
3671 | |
3672 | CHECK_NUMBER (size); | |
3673 | if (NILP (add)) | |
e8c17b81 | 3674 | wset_new_total (w, size); |
496e208e | 3675 | else |
e8c17b81 | 3676 | wset_new_total (w, make_number (XINT (w->new_total) + XINT (size))); |
496e208e | 3677 | |
d3d50620 | 3678 | return w->new_total; |
496e208e MR |
3679 | } |
3680 | ||
3681 | DEFUN ("set-window-new-normal", Fset_window_new_normal, Sset_window_new_normal, 1, 2, 0, | |
3682 | doc: /* Set new normal size of WINDOW to SIZE. | |
52162052 | 3683 | WINDOW must be a valid window and defaults to the selected one. |
496e208e MR |
3684 | Return SIZE. |
3685 | ||
be7f5545 | 3686 | Note: This function does not operate on any child windows of WINDOW. */) |
496e208e MR |
3687 | (Lisp_Object window, Lisp_Object size) |
3688 | { | |
e8c17b81 PE |
3689 | wset_new_normal (decode_valid_window (window), size); |
3690 | return size; | |
7ab12479 JB |
3691 | } |
3692 | ||
880e6158 MR |
3693 | /* Return 1 if setting w->pixel_height (w->pixel_width if HORFLAG is |
3694 | non-zero) to w->new_pixel would result in correct heights (widths) | |
be7f5545 | 3695 | for window W and recursively all child windows of W. |
1a13852e MR |
3696 | |
3697 | Note: This function does not check any of `window-fixed-size-p', | |
3698 | `window-min-height' or `window-min-width'. It does check that window | |
3699 | sizes do not drop below one line (two columns). */ | |
4b66faf3 | 3700 | static int |
748fa866 | 3701 | window_resize_check (struct window *w, bool horflag) |
1a13852e | 3702 | { |
880e6158 | 3703 | struct frame *f = XFRAME (w->frame); |
1a13852e MR |
3704 | struct window *c; |
3705 | ||
e74aeda8 | 3706 | if (WINDOW_VERTICAL_COMBINATION_P (w)) |
1a13852e MR |
3707 | /* W is a vertical combination. */ |
3708 | { | |
e74aeda8 | 3709 | c = XWINDOW (w->contents); |
1a13852e | 3710 | if (horflag) |
be7f5545 | 3711 | /* All child windows of W must have the same width as W. */ |
1a13852e MR |
3712 | { |
3713 | while (c) | |
3714 | { | |
880e6158 | 3715 | if (XINT (c->new_pixel) != XINT (w->new_pixel) |
d615d6d2 | 3716 | || !window_resize_check (c, horflag)) |
1a13852e | 3717 | return 0; |
880e6158 | 3718 | |
d3d50620 | 3719 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3720 | } |
880e6158 | 3721 | |
1a13852e MR |
3722 | return 1; |
3723 | } | |
3724 | else | |
be7f5545 MR |
3725 | /* The sum of the heights of the child windows of W must equal |
3726 | W's height. */ | |
1a13852e | 3727 | { |
880e6158 MR |
3728 | int sum_of_pixels = 0; |
3729 | ||
1a13852e MR |
3730 | while (c) |
3731 | { | |
d615d6d2 | 3732 | if (!window_resize_check (c, horflag)) |
1a13852e | 3733 | return 0; |
880e6158 MR |
3734 | |
3735 | sum_of_pixels = sum_of_pixels + XINT (c->new_pixel); | |
d3d50620 | 3736 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3737 | } |
880e6158 MR |
3738 | |
3739 | return (sum_of_pixels == XINT (w->new_pixel)); | |
1a13852e MR |
3740 | } |
3741 | } | |
e74aeda8 | 3742 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) |
1a13852e MR |
3743 | /* W is a horizontal combination. */ |
3744 | { | |
e74aeda8 | 3745 | c = XWINDOW (w->contents); |
1a13852e | 3746 | if (horflag) |
be7f5545 | 3747 | /* The sum of the widths of the child windows of W must equal W's |
1a13852e MR |
3748 | width. */ |
3749 | { | |
880e6158 MR |
3750 | int sum_of_pixels = 0; |
3751 | ||
1a13852e MR |
3752 | while (c) |
3753 | { | |
d615d6d2 | 3754 | if (!window_resize_check (c, horflag)) |
1a13852e | 3755 | return 0; |
880e6158 MR |
3756 | |
3757 | sum_of_pixels = sum_of_pixels + XINT (c->new_pixel); | |
d3d50620 | 3758 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3759 | } |
880e6158 MR |
3760 | |
3761 | return (sum_of_pixels == XINT (w->new_pixel)); | |
1a13852e MR |
3762 | } |
3763 | else | |
be7f5545 | 3764 | /* All child windows of W must have the same height as W. */ |
1a13852e MR |
3765 | { |
3766 | while (c) | |
3767 | { | |
880e6158 | 3768 | if (XINT (c->new_pixel) != XINT (w->new_pixel) |
d615d6d2 | 3769 | || !window_resize_check (c, horflag)) |
1a13852e | 3770 | return 0; |
880e6158 | 3771 | |
d3d50620 | 3772 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e | 3773 | } |
880e6158 | 3774 | |
1a13852e MR |
3775 | return 1; |
3776 | } | |
3777 | } | |
3778 | else | |
3779 | /* A leaf window. Make sure it's not too small. The following | |
3780 | hardcodes the values of `window-safe-min-width' (2) and | |
3781 | `window-safe-min-height' (1) which are defined in window.el. */ | |
880e6158 MR |
3782 | return (XINT (w->new_pixel) >= (horflag |
3783 | ? (2 * FRAME_COLUMN_WIDTH (f)) | |
3784 | : FRAME_LINE_HEIGHT (f))); | |
1a13852e MR |
3785 | } |
3786 | ||
880e6158 MR |
3787 | static int |
3788 | window_resize_total_check (struct window *w, int horflag) | |
3789 | { | |
3790 | struct frame *f = XFRAME (w->frame); | |
3791 | struct window *c; | |
3792 | ||
3793 | if (WINDOW_VERTICAL_COMBINATION_P (w)) | |
3794 | /* W is a vertical combination. */ | |
3795 | { | |
3796 | c = XWINDOW (w->contents); | |
3797 | if (horflag) | |
3798 | /* All child windows of W must have the same width as W. */ | |
3799 | { | |
3800 | while (c) | |
3801 | { | |
3802 | if (XINT (c->new_pixel) != XINT (w->new_pixel) | |
3803 | /** || XINT (c->new_total != XINT (w->new_total)) **/ | |
3804 | || !window_resize_check (c, horflag)) | |
3805 | return 0; | |
3806 | ||
3807 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3808 | } | |
3809 | ||
3810 | return 1; | |
3811 | } | |
3812 | else | |
3813 | /* The sum of the heights of the child windows of W must equal | |
3814 | W's height. */ | |
3815 | { | |
3816 | int sum_of_pixels = 0, sum_of_totals = 0; | |
3817 | ||
3818 | while (c) | |
3819 | { | |
3820 | if (!window_resize_check (c, horflag)) | |
3821 | return 0; | |
3822 | ||
3823 | sum_of_pixels = sum_of_pixels + XINT (c->new_pixel); | |
3824 | /** sum_of_totals = sum_of_totals + XINT (c->new_total); **/ | |
3825 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3826 | } | |
3827 | ||
3828 | return (sum_of_pixels == XINT (w->new_pixel) | |
3829 | /** && sum_of_totals == XINT (w->new_total) **/ | |
3830 | ); | |
3831 | } | |
3832 | } | |
3833 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) | |
3834 | /* W is a horizontal combination. */ | |
3835 | { | |
3836 | c = XWINDOW (w->contents); | |
3837 | if (horflag) | |
3838 | /* The sum of the widths of the child windows of W must equal W's | |
3839 | width. */ | |
3840 | { | |
3841 | int sum_of_pixels = 0, sum_of_totals = 0; | |
3842 | ||
3843 | while (c) | |
3844 | { | |
3845 | if (!window_resize_check (c, horflag)) | |
3846 | return 0; | |
3847 | ||
3848 | sum_of_pixels = sum_of_pixels + XINT (c->new_pixel); | |
3849 | sum_of_totals = sum_of_totals + XINT (c->new_total); | |
3850 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3851 | } | |
3852 | ||
3853 | return (sum_of_pixels == XINT (w->new_pixel) | |
3854 | /** && sum_of_totals == XINT (w->new_total) **/ | |
3855 | ); | |
3856 | } | |
3857 | else | |
3858 | /* All child windows of W must have the same height as W. */ | |
3859 | { | |
3860 | while (c) | |
3861 | { | |
3862 | if (XINT (c->new_pixel) != XINT (w->new_pixel) | |
3863 | /** || XINT (c->new_total) != XINT (w->new_total) **/ | |
3864 | || !window_resize_check (c, horflag)) | |
3865 | return 0; | |
3866 | ||
3867 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
3868 | } | |
3869 | ||
3870 | return 1; | |
3871 | } | |
3872 | } | |
3873 | else | |
3874 | /* A leaf window. Make sure it's not too small. The following | |
3875 | hardcodes the values of `window-safe-min-width' (2) and | |
3876 | `window-safe-min-height' (1) which are defined in window.el. */ | |
3877 | return (XINT (w->new_pixel) >= (horflag | |
3878 | ? (2 * FRAME_COLUMN_WIDTH (f)) | |
3879 | : FRAME_LINE_HEIGHT (f)) | |
3880 | /** && XINT (w->new_total) >= (horflag ? 2 : 1) **/ | |
3881 | ); | |
3882 | } | |
3883 | ||
3884 | /* Set w->pixel_height (w->pixel_height if HORIZONTAL is non-zero) to | |
3885 | w->new_pixel for window W and recursively all child windows of W. | |
3886 | Also calculate and assign the new vertical (horizontal) pixel start | |
be7f5545 | 3887 | positions of each of these windows. |
1a13852e MR |
3888 | |
3889 | This function does not perform any error checks. Make sure you have | |
d615d6d2 | 3890 | run window_resize_check on W before applying this function. */ |
440a42e3 | 3891 | static void |
748fa866 | 3892 | window_resize_apply (struct window *w, bool horflag) |
1a13852e | 3893 | { |
46a4ce9e | 3894 | struct window *c; |
880e6158 MR |
3895 | int edge; |
3896 | int unit = (horflag | |
3897 | ? FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)) | |
3898 | : FRAME_LINE_HEIGHT (WINDOW_XFRAME (w))); | |
1a13852e MR |
3899 | |
3900 | /* Note: Assigning new_normal requires that the new total size of the | |
3901 | parent window has been set *before*. */ | |
3902 | if (horflag) | |
3903 | { | |
880e6158 MR |
3904 | w->pixel_width = XFASTINT (w->new_pixel); |
3905 | w->total_cols = w->pixel_width / unit; | |
d3d50620 | 3906 | if (NUMBERP (w->new_normal)) |
e8c17b81 | 3907 | wset_normal_cols (w, w->new_normal); |
1a13852e | 3908 | |
880e6158 | 3909 | edge = w->pixel_left; |
1a13852e MR |
3910 | } |
3911 | else | |
3912 | { | |
880e6158 MR |
3913 | w->pixel_height = XFASTINT (w->new_pixel); |
3914 | w->total_lines = w->pixel_height / unit; | |
d3d50620 | 3915 | if (NUMBERP (w->new_normal)) |
e8c17b81 | 3916 | wset_normal_lines (w, w->new_normal); |
1a13852e | 3917 | |
880e6158 | 3918 | edge = w->pixel_top; |
1a13852e MR |
3919 | } |
3920 | ||
e74aeda8 | 3921 | if (WINDOW_VERTICAL_COMBINATION_P (w)) |
1a13852e MR |
3922 | /* W is a vertical combination. */ |
3923 | { | |
e74aeda8 | 3924 | c = XWINDOW (w->contents); |
1a13852e MR |
3925 | while (c) |
3926 | { | |
3927 | if (horflag) | |
880e6158 MR |
3928 | { |
3929 | c->pixel_left = edge; | |
3930 | c->left_col = edge / unit; | |
3931 | } | |
1a13852e | 3932 | else |
880e6158 MR |
3933 | { |
3934 | c->pixel_top = edge; | |
3935 | c->top_line = edge / unit; | |
3936 | } | |
d615d6d2 | 3937 | window_resize_apply (c, horflag); |
1a13852e | 3938 | if (!horflag) |
880e6158 MR |
3939 | edge = edge + c->pixel_height; |
3940 | ||
d3d50620 | 3941 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e MR |
3942 | } |
3943 | } | |
e74aeda8 | 3944 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) |
1a13852e MR |
3945 | /* W is a horizontal combination. */ |
3946 | { | |
e74aeda8 | 3947 | c = XWINDOW (w->contents); |
1a13852e MR |
3948 | while (c) |
3949 | { | |
3950 | if (horflag) | |
880e6158 MR |
3951 | { |
3952 | c->pixel_left = edge; | |
3953 | c->left_col = edge / unit; | |
3954 | } | |
1a13852e | 3955 | else |
880e6158 MR |
3956 | { |
3957 | c->pixel_top = edge; | |
3958 | c->top_line = edge / unit; | |
3959 | } | |
3960 | ||
d615d6d2 | 3961 | window_resize_apply (c, horflag); |
1a13852e | 3962 | if (horflag) |
880e6158 MR |
3963 | edge = edge + c->pixel_width; |
3964 | ||
d3d50620 | 3965 | c = NILP (c->next) ? 0 : XWINDOW (c->next); |
1a13852e MR |
3966 | } |
3967 | } | |
72fdd473 MR |
3968 | else |
3969 | /* Bug#15957. */ | |
3970 | w->window_end_valid = 0; | |
1a13852e MR |
3971 | } |
3972 | ||
3973 | ||
880e6158 MR |
3974 | /* Set w->total_lines (w->total_cols if HORIZONTAL is non-zero) to |
3975 | w->new_total for window W and recursively all child windows of W. | |
3976 | Also calculate and assign the new vertical (horizontal) start | |
3977 | positions of each of these windows. */ | |
3978 | static void | |
3979 | window_resize_apply_total (struct window *w, bool horflag) | |
3980 | { | |
3981 | struct window *c; | |
3982 | int edge; | |
3983 | ||
3984 | /* Note: Assigning new_normal requires that the new total size of the | |
3985 | parent window has been set *before*. */ | |
3986 | if (horflag) | |
3987 | { | |
3988 | w->total_cols = XFASTINT (w->new_total); | |
3989 | edge = w->left_col; | |
3990 | } | |
3991 | else | |
3992 | { | |
3993 | w->total_lines = XFASTINT (w->new_total); | |
3994 | edge = w->top_line; | |
3995 | } | |
3996 | ||
3997 | if (WINDOW_VERTICAL_COMBINATION_P (w)) | |
3998 | /* W is a vertical combination. */ | |
3999 | { | |
4000 | c = XWINDOW (w->contents); | |
4001 | while (c) | |
4002 | { | |
4003 | if (horflag) | |
4004 | c->left_col = edge; | |
4005 | else | |
4006 | c->top_line = edge; | |
4007 | ||
4008 | window_resize_apply_total (c, horflag); | |
4009 | if (!horflag) | |
4010 | edge = edge + c->total_lines; | |
4011 | ||
4012 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
4013 | } | |
4014 | } | |
4015 | else if (WINDOW_HORIZONTAL_COMBINATION_P (w)) | |
4016 | /* W is a horizontal combination. */ | |
4017 | { | |
4018 | c = XWINDOW (w->contents); | |
4019 | while (c) | |
4020 | { | |
4021 | if (horflag) | |
4022 | c->left_col = edge; | |
4023 | else | |
4024 | c->top_line = edge; | |
4025 | ||
4026 | window_resize_apply_total (c, horflag); | |
4027 | if (horflag) | |
4028 | edge = edge + c->total_cols; | |
4029 | ||
4030 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
4031 | } | |
4032 | } | |
4033 | } | |
4034 | ||
d9f07150 | 4035 | DEFUN ("window-resize-apply", Fwindow_resize_apply, Swindow_resize_apply, 0, 2, 0, |
1a13852e | 4036 | doc: /* Apply requested size values for window-tree of FRAME. |
d9f07150 DA |
4037 | If FRAME is omitted or nil, it defaults to the selected frame. |
4038 | ||
4039 | Optional argument HORIZONTAL omitted or nil means apply requested | |
4040 | height values. HORIZONTAL non-nil means apply requested width values. | |
1a13852e MR |
4041 | |
4042 | This function checks whether the requested values sum up to a valid | |
be7f5545 MR |
4043 | window layout, recursively assigns the new sizes of all child windows |
4044 | and calculates and assigns the new start positions of these windows. | |
1a13852e MR |
4045 | |
4046 | Note: This function does not check any of `window-fixed-size-p', | |
4047 | `window-min-height' or `window-min-width'. All these checks have to | |
4048 | be applied on the Elisp level. */) | |
4049 | (Lisp_Object frame, Lisp_Object horizontal) | |
4050 | { | |
d9f07150 DA |
4051 | struct frame *f = decode_live_frame (frame); |
4052 | struct window *r = XWINDOW (FRAME_ROOT_WINDOW (f)); | |
748fa866 | 4053 | bool horflag = !NILP (horizontal); |
1a13852e | 4054 | |
d615d6d2 | 4055 | if (!window_resize_check (r, horflag) |
880e6158 MR |
4056 | || (XINT (r->new_pixel) |
4057 | != (horflag ? r->pixel_width : r->pixel_height))) | |
1a13852e MR |
4058 | return Qnil; |
4059 | ||
4d7e6e51 | 4060 | block_input (); |
d615d6d2 | 4061 | window_resize_apply (r, horflag); |
1a13852e | 4062 | |
94ae2ad4 | 4063 | windows_or_buffers_changed = 30; |
1a13852e MR |
4064 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
4065 | ||
bd0443bb | 4066 | adjust_frame_glyphs (f); |
4d7e6e51 | 4067 | unblock_input (); |
1a13852e | 4068 | |
880e6158 MR |
4069 | return Qt; |
4070 | } | |
4071 | ||
4072 | ||
4073 | DEFUN ("window-resize-apply-total", Fwindow_resize_apply_total, Swindow_resize_apply_total, 0, 2, 0, | |
4074 | doc: /* Apply requested total size values for window-tree of FRAME. | |
4075 | If FRAME is omitted or nil, it defaults to the selected frame. | |
4076 | ||
4077 | This function does not assign pixel or normal size values. You should | |
4078 | have run `window-resize-apply' before running this. | |
4079 | ||
4080 | Optional argument HORIZONTAL omitted or nil means apply requested | |
4081 | height values. HORIZONTAL non-nil means apply requested width | |
4082 | values. */) | |
4083 | (Lisp_Object frame, Lisp_Object horizontal) | |
4084 | { | |
4085 | struct frame *f = decode_live_frame (frame); | |
4086 | struct window *r = XWINDOW (FRAME_ROOT_WINDOW (f)); | |
4087 | ||
4088 | block_input (); | |
4089 | /* Necessary when deleting the top-/or leftmost window. */ | |
4090 | r->left_col = 0; | |
4091 | r->top_line = FRAME_TOP_MARGIN (f); | |
4092 | window_resize_apply_total (r, !NILP (horizontal)); | |
4093 | unblock_input (); | |
1a13852e MR |
4094 | |
4095 | return Qt; | |
4096 | } | |
4097 | ||
4098 | ||
4099 | /* Resize frame F's windows when number of lines of F is set to SIZE. | |
4100 | HORFLAG 1 means resize windows when number of columns of F is set to | |
880e6158 | 4101 | SIZE. PIXELWISE 1 means to interpret SIZE as pixels. |
1a13852e MR |
4102 | |
4103 | This function can delete all windows but the selected one in order to | |
4104 | satisfy the request. The result will be meaningful if and only if | |
4105 | F's windows have meaningful sizes when you call this. */ | |
4106 | void | |
880e6158 | 4107 | resize_frame_windows (struct frame *f, int size, bool horflag, bool pixelwise) |
1a13852e | 4108 | { |
e69b0960 | 4109 | Lisp_Object root = f->root_window; |
1a13852e | 4110 | struct window *r = XWINDOW (root); |
e69b0960 | 4111 | Lisp_Object mini = f->minibuffer_window; |
1a13852e | 4112 | struct window *m; |
880e6158 MR |
4113 | /* old_size is the old size of the frame's root window. */ |
4114 | int old_size = horflag ? r->total_cols : r->total_lines; | |
4115 | int old_pixel_size = horflag ? r->pixel_width : r->pixel_height; | |
1a13852e | 4116 | /* new_size is the new size of the frame's root window. */ |
880e6158 MR |
4117 | int new_size, new_pixel_size; |
4118 | ||
4119 | if (pixelwise) | |
4120 | { | |
4121 | new_pixel_size | |
4122 | = (horflag | |
4123 | ? size | |
4124 | : (size | |
4125 | - FRAME_TOP_MARGIN_HEIGHT (f) | |
4126 | - ((FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f)) | |
4127 | ? FRAME_LINE_HEIGHT (f) : 0))); | |
4128 | new_size = new_pixel_size / (horflag | |
4129 | ? FRAME_COLUMN_WIDTH (f) | |
4130 | : FRAME_LINE_HEIGHT (f)); | |
4131 | } | |
4132 | else | |
4133 | { | |
4134 | new_size= (horflag | |
4135 | ? size | |
4136 | : (size | |
4137 | - FRAME_TOP_MARGIN (f) | |
4138 | - ((FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f)) | |
4139 | ? 1 : 0))); | |
4140 | new_pixel_size = new_size * (horflag | |
4141 | ? FRAME_COLUMN_WIDTH (f) | |
4142 | : FRAME_LINE_HEIGHT (f)); | |
4143 | } | |
1a13852e | 4144 | |
5f24fa51 | 4145 | r->top_line = FRAME_TOP_MARGIN (f); |
880e6158 MR |
4146 | r->pixel_top = FRAME_TOP_MARGIN_HEIGHT (f); |
4147 | ||
4148 | if (new_pixel_size == old_pixel_size) | |
4149 | return; | |
4150 | else if (WINDOW_LEAF_P (r)) | |
1a13852e MR |
4151 | /* For a leaf root window just set the size. */ |
4152 | if (horflag) | |
880e6158 MR |
4153 | { |
4154 | r->total_cols = new_size; | |
4155 | r->pixel_width = new_pixel_size; | |
4156 | } | |
1a13852e | 4157 | else |
880e6158 MR |
4158 | { |
4159 | r->total_lines = new_size; | |
4160 | r->pixel_height = new_pixel_size; | |
4161 | } | |
1a13852e MR |
4162 | else |
4163 | { | |
1a13852e MR |
4164 | Lisp_Object delta; |
4165 | ||
880e6158 MR |
4166 | if (pixelwise) |
4167 | XSETINT (delta, new_pixel_size - old_pixel_size); | |
4168 | else | |
4169 | XSETINT (delta, new_size - old_size); | |
4170 | ||
1a13852e | 4171 | /* Try a "normal" resize first. */ |
880e6158 MR |
4172 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qnil, |
4173 | pixelwise ? Qt : Qnil); | |
3a45383a | 4174 | if (window_resize_check (r, horflag) |
880e6158 MR |
4175 | && new_pixel_size == XINT (r->new_pixel)) |
4176 | { | |
4177 | window_resize_apply (r, horflag); | |
4178 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4179 | } | |
1a13852e MR |
4180 | else |
4181 | { | |
4182 | /* Try with "reasonable" minimum sizes next. */ | |
880e6158 MR |
4183 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qt, |
4184 | pixelwise ? Qt : Qnil); | |
d615d6d2 | 4185 | if (window_resize_check (r, horflag) |
880e6158 MR |
4186 | && new_pixel_size == XINT (r->new_pixel)) |
4187 | { | |
4188 | window_resize_apply (r, horflag); | |
4189 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4190 | } | |
1a13852e MR |
4191 | else |
4192 | { | |
4193 | /* Finally, try with "safe" minimum sizes. */ | |
880e6158 MR |
4194 | resize_root_window (root, delta, horflag ? Qt : Qnil, Qsafe, |
4195 | pixelwise ? Qt : Qnil); | |
d615d6d2 | 4196 | if (window_resize_check (r, horflag) |
880e6158 MR |
4197 | && new_pixel_size == XINT (r->new_pixel)) |
4198 | { | |
4199 | window_resize_apply (r, horflag); | |
4200 | window_pixel_to_total (r->frame, horflag ? Qt : Qnil); | |
4201 | } | |
1a13852e MR |
4202 | else |
4203 | { | |
4204 | /* We lost. Delete all windows but the frame's | |
4205 | selected one. */ | |
e69b0960 | 4206 | root = f->selected_window; |
1a13852e MR |
4207 | Fdelete_other_windows_internal (root, Qnil); |
4208 | if (horflag) | |
880e6158 MR |
4209 | { |
4210 | XWINDOW (root)->total_cols = new_size; | |
4211 | XWINDOW (root)->pixel_width = new_pixel_size; | |
4212 | } | |
1a13852e | 4213 | else |
880e6158 MR |
4214 | { |
4215 | XWINDOW (root)->total_lines = new_size; | |
4216 | XWINDOW (root)->pixel_height = new_pixel_size; | |
4217 | } | |
1a13852e MR |
4218 | } |
4219 | } | |
4220 | } | |
4221 | } | |
4222 | ||
4223 | if (FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f)) | |
4224 | { | |
4225 | m = XWINDOW (mini); | |
4226 | if (horflag) | |
880e6158 MR |
4227 | { |
4228 | m->total_cols = size; | |
4229 | m->pixel_width = new_pixel_size; | |
4230 | } | |
1a13852e MR |
4231 | else |
4232 | { | |
4233 | /* Are we sure we always want 1 line here? */ | |
5f24fa51 | 4234 | m->total_lines = 1; |
880e6158 | 4235 | m->pixel_height = FRAME_LINE_HEIGHT (f); |
5f24fa51 | 4236 | m->top_line = r->top_line + r->total_lines; |
880e6158 | 4237 | m->pixel_top = r->pixel_top + r->pixel_height; |
1a13852e MR |
4238 | } |
4239 | } | |
dca778d5 | 4240 | |
94ae2ad4 | 4241 | windows_or_buffers_changed = 31; |
1a13852e MR |
4242 | } |
4243 | ||
4244 | ||
4245 | DEFUN ("split-window-internal", Fsplit_window_internal, Ssplit_window_internal, 4, 4, 0, | |
4246 | doc: /* Split window OLD. | |
880e6158 | 4247 | Second argument PIXEL-SIZE specifies the number of pixels of the |
9397e56f | 4248 | new window. In any case TOTAL-SIZE must be a positive integer. |
1a13852e MR |
4249 | |
4250 | Third argument SIDE nil (or `below') specifies that the new window shall | |
4251 | be located below WINDOW. SIDE `above' means the new window shall be | |
880e6158 MR |
4252 | located above WINDOW. In both cases PIXEL-SIZE specifies the pixel |
4253 | height of the new window including space reserved for the mode and/or | |
1a13852e MR |
4254 | header line. |
4255 | ||
4256 | SIDE t (or `right') specifies that the new window shall be located on | |
4257 | the right side of WINDOW. SIDE `left' means the new window shall be | |
880e6158 MR |
4258 | located on the left of WINDOW. In both cases PIXEL-SIZE specifies the |
4259 | width of the new window including space reserved for fringes and the | |
4260 | scrollbar or a divider column. | |
1a13852e MR |
4261 | |
4262 | Fourth argument NORMAL-SIZE specifies the normal size of the new window | |
4263 | according to the SIDE argument. | |
4264 | ||
880e6158 | 4265 | The new pixel and normal sizes of all involved windows must have been |
1a13852e | 4266 | set correctly. See the code of `split-window' for how this is done. */) |
880e6158 | 4267 | (Lisp_Object old, Lisp_Object pixel_size, Lisp_Object side, Lisp_Object normal_size) |
1a13852e MR |
4268 | { |
4269 | /* OLD (*o) is the window we have to split. (*p) is either OLD's | |
4270 | parent window or an internal window we have to install as OLD's new | |
4271 | parent. REFERENCE (*r) must denote a live window, or is set to OLD | |
4272 | provided OLD is a leaf window, or to the frame's selected window. | |
4273 | NEW (*n) is the new window created with some parameters taken from | |
4274 | REFERENCE (*r). */ | |
4275 | register Lisp_Object new, frame, reference; | |
880e6158 | 4276 | register struct window *o, *p, *n, *r, *c; |
1a13852e | 4277 | struct frame *f; |
748fa866 | 4278 | bool horflag |
1a13852e MR |
4279 | /* HORFLAG is 1 when we split side-by-side, 0 otherwise. */ |
4280 | = EQ (side, Qt) || EQ (side, Qleft) || EQ (side, Qright); | |
880e6158 MR |
4281 | int combination_limit = 0, sum = 0; |
4282 | int total_size; | |
1a13852e MR |
4283 | |
4284 | CHECK_WINDOW (old); | |
4285 | o = XWINDOW (old); | |
4286 | frame = WINDOW_FRAME (o); | |
4287 | f = XFRAME (frame); | |
4288 | ||
880e6158 MR |
4289 | CHECK_NUMBER (pixel_size); |
4290 | total_size | |
4291 | = XINT (pixel_size) / (horflag | |
4292 | ? FRAME_COLUMN_WIDTH (f) | |
4293 | : FRAME_LINE_HEIGHT (f)); | |
1a13852e | 4294 | |
b6f67890 MR |
4295 | /* Set combination_limit to 1 if we have to make a new parent window. |
4296 | We do that if either `window-combination-limit' is t, or OLD has no | |
4297 | parent, or OLD is ortho-combined. */ | |
4298 | combination_limit = | |
8e17c9ba | 4299 | EQ (Vwindow_combination_limit, Qt) |
d3d50620 | 4300 | || NILP (o->parent) |
e74aeda8 DA |
4301 | || (horflag |
4302 | ? WINDOW_VERTICAL_COMBINATION_P (XWINDOW (o->parent)) | |
4303 | : WINDOW_HORIZONTAL_COMBINATION_P (XWINDOW (o->parent))); | |
1a13852e MR |
4304 | |
4305 | /* We need a live reference window to initialize some parameters. */ | |
4306 | if (WINDOW_LIVE_P (old)) | |
4307 | /* OLD is live, use it as reference window. */ | |
4308 | reference = old; | |
4309 | else | |
4310 | /* Use the frame's selected window as reference window. */ | |
4311 | reference = FRAME_SELECTED_WINDOW (f); | |
4312 | r = XWINDOW (reference); | |
4313 | ||
4314 | /* The following bugs are caught by `split-window'. */ | |
4315 | if (MINI_WINDOW_P (o)) | |
4316 | error ("Attempt to split minibuffer window"); | |
880e6158 | 4317 | else if (total_size < (horflag ? 2 : 1)) |
1a13852e | 4318 | error ("Size of new window too small (after split)"); |
a0c2d0ae MR |
4319 | else if (!combination_limit && !NILP (Vwindow_combination_resize)) |
4320 | /* `window-combination-resize' non-nil means try to resize OLD's siblings | |
1a13852e MR |
4321 | proportionally. */ |
4322 | { | |
d3d50620 | 4323 | p = XWINDOW (o->parent); |
1a13852e | 4324 | /* Temporarily pretend we split the parent window. */ |
880e6158 MR |
4325 | wset_new_pixel |
4326 | (p, make_number ((horflag ? p->pixel_width : p->pixel_height) | |
4327 | - XINT (pixel_size))); | |
d615d6d2 | 4328 | if (!window_resize_check (p, horflag)) |
1a13852e MR |
4329 | error ("Window sizes don't fit"); |
4330 | else | |
4331 | /* Undo the temporary pretension. */ | |
880e6158 | 4332 | wset_new_pixel (p, make_number (horflag ? p->pixel_width : p->pixel_height)); |
1a13852e MR |
4333 | } |
4334 | else | |
4335 | { | |
d615d6d2 | 4336 | if (!window_resize_check (o, horflag)) |
1a13852e | 4337 | error ("Resizing old window failed"); |
880e6158 MR |
4338 | else if (XINT (pixel_size) + XINT (o->new_pixel) |
4339 | != (horflag ? o->pixel_width : o->pixel_height)) | |
1a13852e MR |
4340 | error ("Sum of sizes of old and new window don't fit"); |
4341 | } | |
4342 | ||
4343 | /* This is our point of no return. */ | |
b6f67890 | 4344 | if (combination_limit) |
1a13852e MR |
4345 | { |
4346 | /* Save the old value of o->normal_cols/lines. It gets corrupted | |
4347 | by make_parent_window and we need it below for assigning it to | |
4348 | p->new_normal. */ | |
3a45383a | 4349 | Lisp_Object new_normal |
d3d50620 | 4350 | = horflag ? o->normal_cols : o->normal_lines; |
1a13852e MR |
4351 | |
4352 | make_parent_window (old, horflag); | |
d3d50620 | 4353 | p = XWINDOW (o->parent); |
fdaf534a MR |
4354 | if (EQ (Vwindow_combination_limit, Qt)) |
4355 | /* Store t in the new parent's combination_limit slot to avoid | |
4356 | that its children get merged into another window. */ | |
4357 | wset_combination_limit (p, Qt); | |
1a13852e | 4358 | /* These get applied below. */ |
880e6158 MR |
4359 | wset_new_pixel |
4360 | (p, make_number (horflag ? o->pixel_width : o->pixel_height)); | |
4361 | wset_new_total | |
4362 | (p, make_number (horflag ? o->total_cols : o->total_lines)); | |
e8c17b81 | 4363 | wset_new_normal (p, new_normal); |
1a13852e MR |
4364 | } |
4365 | else | |
d3d50620 | 4366 | p = XWINDOW (o->parent); |
1a13852e | 4367 | |
94ae2ad4 | 4368 | windows_or_buffers_changed = 32; |
1a13852e MR |
4369 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
4370 | new = make_window (); | |
4371 | n = XWINDOW (new); | |
e8c17b81 PE |
4372 | wset_frame (n, frame); |
4373 | wset_parent (n, o->parent); | |
1a13852e MR |
4374 | |
4375 | if (EQ (side, Qabove) || EQ (side, Qleft)) | |
4376 | { | |
e8c17b81 | 4377 | wset_prev (n, o->prev); |
d3d50620 | 4378 | if (NILP (n->prev)) |
e74aeda8 | 4379 | wset_combination (p, horflag, new); |
1a13852e | 4380 | else |
e8c17b81 PE |
4381 | wset_next (XWINDOW (n->prev), new); |
4382 | wset_next (n, old); | |
4383 | wset_prev (o, new); | |
1a13852e MR |
4384 | } |
4385 | else | |
4386 | { | |
e8c17b81 | 4387 | wset_next (n, o->next); |
d3d50620 | 4388 | if (!NILP (n->next)) |
e8c17b81 PE |
4389 | wset_prev (XWINDOW (n->next), new); |
4390 | wset_prev (n, old); | |
4391 | wset_next (o, new); | |
1a13852e MR |
4392 | } |
4393 | ||
9d93ce29 | 4394 | n->window_end_valid = 0; |
c80016b3 | 4395 | n->last_cursor_vpos = 0; |
1a13852e MR |
4396 | |
4397 | /* Get special geometry settings from reference window. */ | |
eeaf9bf3 DA |
4398 | n->left_margin_cols = r->left_margin_cols; |
4399 | n->right_margin_cols = r->right_margin_cols; | |
9e37ee3b DA |
4400 | n->left_fringe_width = r->left_fringe_width; |
4401 | n->right_fringe_width = r->right_fringe_width; | |
1a13852e | 4402 | n->fringes_outside_margins = r->fringes_outside_margins; |
38a2c910 | 4403 | n->scroll_bar_width = r->scroll_bar_width; |
e8c17b81 | 4404 | wset_vertical_scroll_bar_type (n, r->vertical_scroll_bar_type); |
1a13852e | 4405 | |
1a13852e MR |
4406 | /* Directly assign orthogonal coordinates and sizes. */ |
4407 | if (horflag) | |
4408 | { | |
880e6158 | 4409 | n->pixel_top = o->pixel_top; |
5f24fa51 | 4410 | n->top_line = o->top_line; |
880e6158 | 4411 | n->pixel_height = o->pixel_height; |
5f24fa51 | 4412 | n->total_lines = o->total_lines; |
1a13852e MR |
4413 | } |
4414 | else | |
4415 | { | |
880e6158 | 4416 | n->pixel_left = o->pixel_left; |
5f24fa51 | 4417 | n->left_col = o->left_col; |
880e6158 | 4418 | n->pixel_width = o->pixel_width; |
5f24fa51 | 4419 | n->total_cols = o->total_cols; |
1a13852e MR |
4420 | } |
4421 | ||
d615d6d2 | 4422 | /* Iso-coordinates and sizes are assigned by window_resize_apply, |
1a13852e | 4423 | get them ready here. */ |
880e6158 MR |
4424 | wset_new_pixel (n, pixel_size); |
4425 | c = XWINDOW (p->contents); | |
4426 | while (c) | |
4427 | { | |
4428 | if (c != n) | |
4429 | sum = sum + XINT (c->new_total); | |
4430 | c = NILP (c->next) ? 0 : XWINDOW (c->next); | |
4431 | } | |
4432 | wset_new_total (n, make_number ((horflag | |
4433 | ? p->total_cols | |
4434 | : p->total_lines) | |
4435 | - sum)); | |
e8c17b81 | 4436 | wset_new_normal (n, normal_size); |
1a13852e | 4437 | |
4d7e6e51 | 4438 | block_input (); |
d615d6d2 | 4439 | window_resize_apply (p, horflag); |
bd0443bb | 4440 | adjust_frame_glyphs (f); |
1a13852e MR |
4441 | /* Set buffer of NEW to buffer of reference window. Don't run |
4442 | any hooks. */ | |
e74aeda8 | 4443 | set_window_buffer (new, r->contents, 0, 1); |
4d7e6e51 | 4444 | unblock_input (); |
1a13852e MR |
4445 | |
4446 | /* Maybe we should run the scroll functions in Elisp (which already | |
4447 | runs the configuration change hook). */ | |
4448 | if (! NILP (Vwindow_scroll_functions)) | |
4449 | run_hook_with_args_2 (Qwindow_scroll_functions, new, | |
d3d50620 | 4450 | Fmarker_position (n->start)); |
1a13852e MR |
4451 | /* Return NEW. */ |
4452 | return new; | |
4453 | } | |
4454 | ||
4455 | ||
4456 | DEFUN ("delete-window-internal", Fdelete_window_internal, Sdelete_window_internal, 1, 1, 0, | |
4457 | doc: /* Remove WINDOW from its frame. | |
87e68db4 JB |
4458 | WINDOW defaults to the selected window. Return nil. |
4459 | Signal an error when WINDOW is the only window on its frame. */) | |
1a13852e MR |
4460 | (register Lisp_Object window) |
4461 | { | |
4462 | register Lisp_Object parent, sibling, frame, root; | |
4463 | struct window *w, *p, *s, *r; | |
4464 | struct frame *f; | |
e74aeda8 | 4465 | bool horflag, before_sibling = 0; |
1a13852e MR |
4466 | |
4467 | w = decode_any_window (window); | |
4468 | XSETWINDOW (window, w); | |
e74aeda8 | 4469 | if (NILP (w->contents)) |
1a13852e MR |
4470 | /* It's a no-op to delete an already deleted window. */ |
4471 | return Qnil; | |
4472 | ||
d3d50620 | 4473 | parent = w->parent; |
1a13852e MR |
4474 | if (NILP (parent)) |
4475 | /* Never delete a minibuffer or frame root window. */ | |
4476 | error ("Attempt to delete minibuffer or sole ordinary window"); | |
d3d50620 | 4477 | else if (NILP (w->prev) && NILP (w->next)) |
1a13852e MR |
4478 | /* Rather bow out here, this case should be handled on the Elisp |
4479 | level. */ | |
4480 | error ("Attempt to delete sole window of parent"); | |
4481 | ||
4482 | p = XWINDOW (parent); | |
e74aeda8 | 4483 | horflag = WINDOW_HORIZONTAL_COMBINATION_P (p); |
1a13852e MR |
4484 | |
4485 | frame = WINDOW_FRAME (w); | |
4486 | f = XFRAME (frame); | |
4487 | ||
4488 | root = FRAME_ROOT_WINDOW (f); | |
4489 | r = XWINDOW (root); | |
4490 | ||
4491 | /* Unlink WINDOW from window tree. */ | |
d3d50620 | 4492 | if (NILP (w->prev)) |
1a13852e MR |
4493 | /* Get SIBLING below (on the right of) WINDOW. */ |
4494 | { | |
4495 | /* before_sibling 1 means WINDOW is the first child of its | |
4496 | parent and thus before the sibling. */ | |
4497 | before_sibling = 1; | |
d3d50620 | 4498 | sibling = w->next; |
1a13852e | 4499 | s = XWINDOW (sibling); |
e8c17b81 | 4500 | wset_prev (s, Qnil); |
e74aeda8 | 4501 | wset_combination (p, horflag, sibling); |
1a13852e MR |
4502 | } |
4503 | else | |
4504 | /* Get SIBLING above (on the left of) WINDOW. */ | |
4505 | { | |
d3d50620 | 4506 | sibling = w->prev; |
1a13852e | 4507 | s = XWINDOW (sibling); |
e8c17b81 | 4508 | wset_next (s, w->next); |
d3d50620 | 4509 | if (!NILP (s->next)) |
e8c17b81 | 4510 | wset_prev (XWINDOW (s->next), sibling); |
7ab12479 JB |
4511 | } |
4512 | ||
d615d6d2 | 4513 | if (window_resize_check (r, horflag) |
880e6158 MR |
4514 | && (XINT (r->new_pixel) |
4515 | == (horflag ? r->pixel_width : r->pixel_height))) | |
562dd5e9 MR |
4516 | /* We can delete WINDOW now. */ |
4517 | { | |
95986d52 | 4518 | |
562dd5e9 | 4519 | /* Block input. */ |
4d7e6e51 | 4520 | block_input (); |
d615d6d2 | 4521 | window_resize_apply (p, horflag); |
95986d52 CY |
4522 | /* If this window is referred to by the dpyinfo's mouse |
4523 | highlight, invalidate that slot to be safe (Bug#9904). */ | |
4c5501e9 EZ |
4524 | if (!FRAME_INITIAL_P (f)) |
4525 | { | |
4526 | Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f); | |
4527 | ||
4528 | if (EQ (hlinfo->mouse_face_window, window)) | |
4529 | hlinfo->mouse_face_window = Qnil; | |
4530 | } | |
95986d52 | 4531 | |
94ae2ad4 | 4532 | windows_or_buffers_changed = 33; |
562dd5e9 MR |
4533 | Vwindow_list = Qnil; |
4534 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; | |
0d384044 | 4535 | |
e8c17b81 | 4536 | wset_next (w, Qnil); /* Don't delete w->next too. */ |
562dd5e9 | 4537 | free_window_matrices (w); |
bd99e242 | 4538 | |
e74aeda8 | 4539 | if (WINDOWP (w->contents)) |
0d384044 | 4540 | { |
e74aeda8 DA |
4541 | delete_all_child_windows (w->contents); |
4542 | wset_combination (w, 0, Qnil); | |
0d384044 | 4543 | } |
e74aeda8 | 4544 | else |
bd99e242 | 4545 | { |
562dd5e9 | 4546 | unshow_buffer (w); |
d3d50620 DA |
4547 | unchain_marker (XMARKER (w->pointm)); |
4548 | unchain_marker (XMARKER (w->start)); | |
e8c17b81 | 4549 | wset_buffer (w, Qnil); |
bd99e242 RS |
4550 | } |
4551 | ||
d3d50620 | 4552 | if (NILP (s->prev) && NILP (s->next)) |
562dd5e9 MR |
4553 | /* A matrjoshka where SIBLING has become the only child of |
4554 | PARENT. */ | |
c32de52a | 4555 | { |
562dd5e9 MR |
4556 | /* Put SIBLING into PARENT's place. */ |
4557 | replace_window (parent, sibling, 0); | |
4558 | /* Have SIBLING inherit the following three slot values from | |
b6f67890 | 4559 | PARENT (the combination_limit slot is not inherited). */ |
e8c17b81 PE |
4560 | wset_normal_cols (s, p->normal_cols); |
4561 | wset_normal_lines (s, p->normal_lines); | |
562dd5e9 | 4562 | /* Mark PARENT as deleted. */ |
e74aeda8 | 4563 | wset_combination (p, 0, Qnil); |
562dd5e9 MR |
4564 | /* Try to merge SIBLING into its new parent. */ |
4565 | recombine_windows (sibling); | |
c32de52a RS |
4566 | } |
4567 | ||
bd0443bb | 4568 | adjust_frame_glyphs (f); |
562dd5e9 MR |
4569 | |
4570 | if (!WINDOW_LIVE_P (FRAME_SELECTED_WINDOW (f))) | |
4571 | /* We deleted the frame's selected window. */ | |
0d384044 | 4572 | { |
562dd5e9 MR |
4573 | /* Use the frame's first window as fallback ... */ |
4574 | Lisp_Object new_selected_window = Fframe_first_window (frame); | |
4575 | /* ... but preferably use its most recently used window. */ | |
4576 | Lisp_Object mru_window; | |
0d384044 | 4577 | |
562dd5e9 MR |
4578 | /* `get-mru-window' might fail for some reason so play it safe |
4579 | - promote the first window _without recording it_ first. */ | |
4580 | if (EQ (FRAME_SELECTED_WINDOW (f), selected_window)) | |
4581 | Fselect_window (new_selected_window, Qt); | |
4582 | else | |
f00af5b1 | 4583 | fset_selected_window (f, new_selected_window); |
0d384044 | 4584 | |
4d7e6e51 | 4585 | unblock_input (); |
0d384044 | 4586 | |
562dd5e9 MR |
4587 | /* Now look whether `get-mru-window' gets us something. */ |
4588 | mru_window = call1 (Qget_mru_window, frame); | |
4589 | if (WINDOW_LIVE_P (mru_window) | |
d3d50620 | 4590 | && EQ (XWINDOW (mru_window)->frame, frame)) |
562dd5e9 | 4591 | new_selected_window = mru_window; |
bd99e242 | 4592 | |
562dd5e9 MR |
4593 | /* If all ended up well, we now promote the mru window. */ |
4594 | if (EQ (FRAME_SELECTED_WINDOW (f), selected_window)) | |
4595 | Fselect_window (new_selected_window, Qnil); | |
4596 | else | |
f00af5b1 | 4597 | fset_selected_window (f, new_selected_window); |
0d384044 RS |
4598 | } |
4599 | else | |
4d7e6e51 | 4600 | unblock_input (); |
0d384044 | 4601 | |
562dd5e9 MR |
4602 | /* Must be run by the caller: |
4603 | run_window_configuration_change_hook (f); */ | |
0d384044 | 4604 | } |
562dd5e9 MR |
4605 | else |
4606 | /* We failed: Relink WINDOW into window tree. */ | |
0d384044 | 4607 | { |
562dd5e9 MR |
4608 | if (before_sibling) |
4609 | { | |
e8c17b81 | 4610 | wset_prev (s, window); |
e74aeda8 | 4611 | wset_combination (p, horflag, window); |
562dd5e9 MR |
4612 | } |
4613 | else | |
4614 | { | |
e8c17b81 | 4615 | wset_next (s, window); |
d3d50620 | 4616 | if (!NILP (w->next)) |
e8c17b81 | 4617 | wset_prev (XWINDOW (w->next), window); |
562dd5e9 MR |
4618 | } |
4619 | error ("Deletion failed"); | |
0d384044 RS |
4620 | } |
4621 | ||
0d384044 RS |
4622 | return Qnil; |
4623 | } | |
f984d4fc GM |
4624 | \f |
4625 | /*********************************************************************** | |
4626 | Resizing Mini-Windows | |
4627 | ***********************************************************************/ | |
4628 | ||
562dd5e9 MR |
4629 | /* Grow mini-window W by DELTA lines, DELTA >= 0, or as much as we |
4630 | can. */ | |
4631 | void | |
880e6158 | 4632 | grow_mini_window (struct window *w, int delta, bool pixelwise) |
f984d4fc | 4633 | { |
d3d50620 | 4634 | struct frame *f = XFRAME (w->frame); |
562dd5e9 | 4635 | struct window *r; |
880e6158 MR |
4636 | Lisp_Object root, height; |
4637 | int line_height, pixel_height; | |
f984d4fc | 4638 | |
a54e2c05 DA |
4639 | eassert (MINI_WINDOW_P (w)); |
4640 | eassert (delta >= 0); | |
f984d4fc | 4641 | |
880e6158 | 4642 | if (delta > 0) |
f984d4fc | 4643 | { |
880e6158 MR |
4644 | root = FRAME_ROOT_WINDOW (f); |
4645 | r = XWINDOW (root); | |
4646 | height = call3 (Qwindow_resize_root_window_vertically, | |
4647 | root, make_number (- delta), pixelwise ? Qt : Qnil); | |
4648 | if (INTEGERP (height) && window_resize_check (r, 0)) | |
4649 | { | |
4650 | block_input (); | |
4651 | window_resize_apply (r, 0); | |
f984d4fc | 4652 | |
880e6158 MR |
4653 | if (pixelwise) |
4654 | { | |
4655 | pixel_height = -XINT (height); | |
4656 | line_height = pixel_height / FRAME_LINE_HEIGHT (f); | |
4657 | } | |
4658 | else | |
4659 | { | |
4660 | line_height = -XINT (height); | |
4661 | pixel_height = line_height * FRAME_LINE_HEIGHT (f); | |
4662 | } | |
4663 | ||
4664 | /* Grow the mini-window. */ | |
4665 | w->pixel_top = r->pixel_top + r->pixel_height; | |
4666 | w->top_line = r->top_line + r->total_lines; | |
4667 | w->pixel_height += pixel_height; | |
4668 | w->total_lines += line_height; | |
4669 | ||
4670 | /* Enforce full redisplay of the frame. */ | |
4671 | /* FIXME: Shouldn't window--resize-root-window-vertically do it? */ | |
4672 | fset_redisplay (f); | |
4673 | adjust_frame_glyphs (f); | |
4674 | unblock_input (); | |
4675 | } | |
f984d4fc GM |
4676 | } |
4677 | } | |
4678 | ||
880e6158 | 4679 | /* Shrink mini-window W to one line. */ |
562dd5e9 | 4680 | void |
880e6158 | 4681 | shrink_mini_window (struct window *w, bool pixelwise) |
f984d4fc | 4682 | { |
d3d50620 | 4683 | struct frame *f = XFRAME (w->frame); |
562dd5e9 | 4684 | struct window *r; |
880e6158 MR |
4685 | Lisp_Object root, delta; |
4686 | EMACS_INT height, unit; | |
43b4a21f | 4687 | |
a54e2c05 | 4688 | eassert (MINI_WINDOW_P (w)); |
177c0ea7 | 4689 | |
880e6158 MR |
4690 | height = pixelwise ? w->pixel_height : w->total_lines; |
4691 | unit = pixelwise ? FRAME_LINE_HEIGHT (f) : 1; | |
4692 | if (height > unit) | |
562dd5e9 MR |
4693 | { |
4694 | root = FRAME_ROOT_WINDOW (f); | |
4695 | r = XWINDOW (root); | |
880e6158 MR |
4696 | delta = call3 (Qwindow_resize_root_window_vertically, |
4697 | root, make_number (height - unit), | |
4698 | pixelwise ? Qt : Qnil); | |
4699 | if (INTEGERP (delta) && window_resize_check (r, 0)) | |
f984d4fc | 4700 | { |
4d7e6e51 | 4701 | block_input (); |
d615d6d2 | 4702 | window_resize_apply (r, 0); |
43b4a21f | 4703 | |
562dd5e9 | 4704 | /* Shrink the mini-window. */ |
5f24fa51 DA |
4705 | w->top_line = r->top_line + r->total_lines; |
4706 | w->total_lines = 1; | |
880e6158 MR |
4707 | w->pixel_top = r->pixel_top + r->pixel_height; |
4708 | w->pixel_height = FRAME_LINE_HEIGHT (f); | |
655ab9a3 SM |
4709 | /* Enforce full redisplay of the frame. */ |
4710 | /* FIXME: Shouldn't window--resize-root-window-vertically do it? */ | |
4711 | fset_redisplay (f); | |
bd0443bb | 4712 | adjust_frame_glyphs (f); |
4d7e6e51 | 4713 | unblock_input (); |
f984d4fc | 4714 | } |
562dd5e9 MR |
4715 | /* If the above failed for whatever strange reason we must make a |
4716 | one window frame here. The same routine will be needed when | |
4717 | shrinking the frame (and probably when making the initial | |
4718 | *scratch* window). For the moment leave things as they are. */ | |
f984d4fc GM |
4719 | } |
4720 | } | |
4721 | ||
562dd5e9 MR |
4722 | DEFUN ("resize-mini-window-internal", Fresize_mini_window_internal, Sresize_mini_window_internal, 1, 1, 0, |
4723 | doc: /* Resize minibuffer window WINDOW. */) | |
4724 | (Lisp_Object window) | |
f984d4fc | 4725 | { |
562dd5e9 MR |
4726 | struct window *w = XWINDOW (window); |
4727 | struct window *r; | |
4728 | struct frame *f; | |
4729 | int height; | |
177c0ea7 | 4730 | |
562dd5e9 | 4731 | CHECK_WINDOW (window); |
d3d50620 | 4732 | f = XFRAME (w->frame); |
177c0ea7 | 4733 | |
d3d50620 | 4734 | if (!EQ (FRAME_MINIBUF_WINDOW (XFRAME (w->frame)), window)) |
562dd5e9 MR |
4735 | error ("Not a valid minibuffer window"); |
4736 | else if (FRAME_MINIBUF_ONLY_P (f)) | |
4737 | error ("Cannot resize a minibuffer-only frame"); | |
177c0ea7 | 4738 | |
562dd5e9 | 4739 | r = XWINDOW (FRAME_ROOT_WINDOW (f)); |
880e6158 | 4740 | height = r->pixel_height + w->pixel_height; |
d615d6d2 | 4741 | if (window_resize_check (r, 0) |
880e6158 MR |
4742 | && XINT (w->new_pixel) > 0 |
4743 | && height == XINT (r->new_pixel) + XINT (w->new_pixel)) | |
f984d4fc | 4744 | { |
4d7e6e51 | 4745 | block_input (); |
d615d6d2 | 4746 | window_resize_apply (r, 0); |
f984d4fc | 4747 | |
5f24fa51 DA |
4748 | w->total_lines = XFASTINT (w->new_total); |
4749 | w->top_line = r->top_line + r->total_lines; | |
880e6158 MR |
4750 | w->pixel_height = XFASTINT (w->new_pixel); |
4751 | w->pixel_top = r->pixel_top + r->pixel_height; | |
177c0ea7 | 4752 | |
94ae2ad4 | 4753 | windows_or_buffers_changed = 36; |
562dd5e9 | 4754 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
bd0443bb | 4755 | adjust_frame_glyphs (f); |
4d7e6e51 | 4756 | unblock_input (); |
562dd5e9 | 4757 | return Qt; |
86c8e823 | 4758 | } |
880e6158 MR |
4759 | else |
4760 | error ("Failed to resize minibuffer window"); | |
f984d4fc | 4761 | } |
562dd5e9 | 4762 | \f |
5500c422 GM |
4763 | /* Mark window cursors off for all windows in the window tree rooted |
4764 | at W by setting their phys_cursor_on_p flag to zero. Called from | |
4765 | xterm.c, e.g. when a frame is cleared and thereby all cursors on | |
4766 | the frame are cleared. */ | |
4767 | ||
4768 | void | |
971de7fb | 4769 | mark_window_cursors_off (struct window *w) |
5500c422 GM |
4770 | { |
4771 | while (w) | |
4772 | { | |
e74aeda8 DA |
4773 | if (WINDOWP (w->contents)) |
4774 | mark_window_cursors_off (XWINDOW (w->contents)); | |
5500c422 GM |
4775 | else |
4776 | w->phys_cursor_on_p = 0; | |
4777 | ||
d3d50620 | 4778 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
5500c422 GM |
4779 | } |
4780 | } | |
4781 | ||
4782 | ||
e9c195b1 | 4783 | /* Return number of lines of text (not counting mode lines) in W. */ |
7ab12479 JB |
4784 | |
4785 | int | |
971de7fb | 4786 | window_internal_height (struct window *w) |
7ab12479 | 4787 | { |
5f24fa51 | 4788 | int ht = w->total_lines; |
7ab12479 | 4789 | |
e9c195b1 GM |
4790 | if (!MINI_WINDOW_P (w)) |
4791 | { | |
d3d50620 | 4792 | if (!NILP (w->parent) |
e74aeda8 | 4793 | || WINDOWP (w->contents) |
d3d50620 DA |
4794 | || !NILP (w->next) |
4795 | || !NILP (w->prev) | |
e9c195b1 GM |
4796 | || WINDOW_WANTS_MODELINE_P (w)) |
4797 | --ht; | |
7ab12479 | 4798 | |
e9c195b1 GM |
4799 | if (WINDOW_WANTS_HEADER_LINE_P (w)) |
4800 | --ht; | |
4801 | } | |
7ab12479 JB |
4802 | |
4803 | return ht; | |
4804 | } | |
5500c422 GM |
4805 | \f |
4806 | /************************************************************************ | |
4807 | Window Scrolling | |
4808 | ***********************************************************************/ | |
535e0b8e | 4809 | |
5500c422 | 4810 | /* Scroll contents of window WINDOW up. If WHOLE is non-zero, scroll |
d4e7cf01 | 4811 | N screen-fulls, which is defined as the height of the window minus |
5500c422 GM |
4812 | next_screen_context_lines. If WHOLE is zero, scroll up N lines |
4813 | instead. Negative values of N mean scroll down. NOERROR non-zero | |
4814 | means don't signal an error if we try to move over BEGV or ZV, | |
4815 | respectively. */ | |
7ab12479 | 4816 | |
101d1605 | 4817 | static void |
56b5d5b1 | 4818 | window_scroll (Lisp_Object window, EMACS_INT n, bool whole, int noerror) |
5500c422 | 4819 | { |
cba59f77 | 4820 | immediate_quit = 1; |
d311d28c | 4821 | n = clip_to_bounds (INT_MIN, n, INT_MAX); |
cba59f77 | 4822 | |
5500c422 GM |
4823 | /* If we must, use the pixel-based version which is much slower than |
4824 | the line-based one but can handle varying line heights. */ | |
d3d50620 | 4825 | if (FRAME_WINDOW_P (XFRAME (XWINDOW (window)->frame))) |
5500c422 GM |
4826 | window_scroll_pixel_based (window, n, whole, noerror); |
4827 | else | |
4828 | window_scroll_line_based (window, n, whole, noerror); | |
cba59f77 | 4829 | |
72fdd473 MR |
4830 | /* Bug#15957. */ |
4831 | XWINDOW (window)->window_end_valid = 0; | |
cba59f77 | 4832 | immediate_quit = 0; |
5500c422 GM |
4833 | } |
4834 | ||
4835 | ||
4836 | /* Implementation of window_scroll that works based on pixel line | |
4837 | heights. See the comment of window_scroll for parameter | |
4838 | descriptions. */ | |
4839 | ||
4840 | static void | |
56b5d5b1 | 4841 | window_scroll_pixel_based (Lisp_Object window, int n, bool whole, int noerror) |
5500c422 GM |
4842 | { |
4843 | struct it it; | |
4844 | struct window *w = XWINDOW (window); | |
4845 | struct text_pos start; | |
5500c422 | 4846 | int this_scroll_margin; |
9d14503e | 4847 | /* True if we fiddled the window vscroll field without really scrolling. */ |
5cdb3cf3 | 4848 | int vscrolled = 0; |
5a857365 | 4849 | int x, y, rtop, rbot, rowh, vpos; |
57b3e30b | 4850 | void *itdata = NULL; |
fdda0220 EZ |
4851 | int window_total_lines; |
4852 | int frame_line_height = default_line_pixel_height (w); | |
5500c422 | 4853 | |
d3d50620 | 4854 | SET_TEXT_POS_FROM_MARKER (start, w->start); |
f0ee99a0 EZ |
4855 | /* Scrolling a minibuffer window via scroll bar when the echo area |
4856 | shows long text sometimes resets the minibuffer contents behind | |
4857 | our backs. */ | |
4858 | if (CHARPOS (start) > ZV) | |
4859 | SET_TEXT_POS (start, BEGV, BEGV_BYTE); | |
177c0ea7 | 4860 | |
5500c422 | 4861 | /* If PT is not visible in WINDOW, move back one half of |
288d4e06 GM |
4862 | the screen. Allow PT to be partially visible, otherwise |
4863 | something like (scroll-down 1) with PT in the line before | |
4864 | the partially visible one would recenter. */ | |
5a857365 KS |
4865 | |
4866 | if (!pos_visible_p (w, PT, &x, &y, &rtop, &rbot, &rowh, &vpos)) | |
5500c422 | 4867 | { |
57b3e30b | 4868 | itdata = bidi_shelve_cache (); |
5500c422 GM |
4869 | /* Move backward half the height of the window. Performance note: |
4870 | vmotion used here is about 10% faster, but would give wrong | |
4871 | results for variable height lines. */ | |
4872 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
4873 | it.current_y = it.last_visible_y; | |
f204989e | 4874 | move_it_vertically_backward (&it, window_box_height (w) / 2); |
177c0ea7 | 4875 | |
5500c422 GM |
4876 | /* The function move_iterator_vertically may move over more than |
4877 | the specified y-distance. If it->w is small, e.g. a | |
4878 | mini-buffer window, we may end up in front of the window's | |
4879 | display area. This is the case when Start displaying at the | |
4880 | start of the line containing PT in this case. */ | |
4881 | if (it.current_y <= 0) | |
4882 | { | |
4883 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
f204989e | 4884 | move_it_vertically_backward (&it, 0); |
5500c422 GM |
4885 | it.current_y = 0; |
4886 | } | |
4887 | ||
4888 | start = it.current.pos; | |
35928349 | 4889 | bidi_unshelve_cache (itdata, 0); |
5500c422 | 4890 | } |
e56263e5 KS |
4891 | else if (auto_window_vscroll_p) |
4892 | { | |
5a857365 | 4893 | if (rtop || rbot) /* partially visible */ |
e56263e5 KS |
4894 | { |
4895 | int px; | |
fdda0220 | 4896 | int dy = frame_line_height; |
e56263e5 | 4897 | if (whole) |
e856c216 KS |
4898 | dy = max ((window_box_height (w) |
4899 | - next_screen_context_lines * dy), | |
4900 | dy); | |
e56263e5 KS |
4901 | dy *= n; |
4902 | ||
5a857365 | 4903 | if (n < 0) |
e56263e5 | 4904 | { |
5a857365 KS |
4905 | /* Only vscroll backwards if already vscrolled forwards. */ |
4906 | if (w->vscroll < 0 && rtop > 0) | |
4907 | { | |
4908 | px = max (0, -w->vscroll - min (rtop, -dy)); | |
4909 | Fset_window_vscroll (window, make_number (px), Qt); | |
4910 | return; | |
4911 | } | |
e56263e5 | 4912 | } |
5a857365 | 4913 | if (n > 0) |
e56263e5 | 4914 | { |
5a857365 KS |
4915 | /* Do vscroll if already vscrolled or only display line. */ |
4916 | if (rbot > 0 && (w->vscroll < 0 || vpos == 0)) | |
4917 | { | |
4918 | px = max (0, -w->vscroll + min (rbot, dy)); | |
4919 | Fset_window_vscroll (window, make_number (px), Qt); | |
4920 | return; | |
4921 | } | |
4922 | ||
4923 | /* Maybe modify window start instead of scrolling. */ | |
4924 | if (rbot > 0 || w->vscroll < 0) | |
4925 | { | |
d311d28c | 4926 | ptrdiff_t spos; |
5a857365 KS |
4927 | |
4928 | Fset_window_vscroll (window, make_number (0), Qt); | |
4929 | /* If there are other text lines above the current row, | |
4930 | move window start to current row. Else to next row. */ | |
4931 | if (rbot > 0) | |
4932 | spos = XINT (Fline_beginning_position (Qnil)); | |
4933 | else | |
4934 | spos = min (XINT (Fline_end_position (Qnil)) + 1, ZV); | |
d3d50620 | 4935 | set_marker_restricted (w->start, make_number (spos), |
e74aeda8 | 4936 | w->contents); |
c98ff5dd DA |
4937 | w->start_at_line_beg = 1; |
4938 | w->update_mode_line = 1; | |
5a857365 KS |
4939 | /* Set force_start so that redisplay_window will run the |
4940 | window-scroll-functions. */ | |
c98ff5dd | 4941 | w->force_start = 1; |
5a857365 KS |
4942 | return; |
4943 | } | |
e56263e5 KS |
4944 | } |
4945 | } | |
5a857365 | 4946 | /* Cancel previous vscroll. */ |
e56263e5 KS |
4947 | Fset_window_vscroll (window, make_number (0), Qt); |
4948 | } | |
5500c422 | 4949 | |
57b3e30b | 4950 | itdata = bidi_shelve_cache (); |
d0c38d63 | 4951 | /* If scroll_preserve_screen_position is non-nil, we try to set |
5500c422 GM |
4952 | point in the same window line as it is now, so get that line. */ |
4953 | if (!NILP (Vscroll_preserve_screen_position)) | |
4954 | { | |
c525d842 | 4955 | /* We preserve the goal pixel coordinate across consecutive |
a4b000fb JL |
4956 | calls to scroll-up, scroll-down and other commands that |
4957 | have the `scroll-command' property. This avoids the | |
c525d842 CY |
4958 | possibility of point becoming "stuck" on a tall line when |
4959 | scrolling by one line. */ | |
66fe93d1 | 4960 | if (window_scroll_pixel_based_preserve_y < 0 |
1344aad4 TT |
4961 | || !SYMBOLP (KVAR (current_kboard, Vlast_command)) |
4962 | || NILP (Fget (KVAR (current_kboard, Vlast_command), Qscroll_command))) | |
c525d842 CY |
4963 | { |
4964 | start_display (&it, w, start); | |
4965 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
66fe93d1 | 4966 | window_scroll_pixel_based_preserve_y = it.current_y; |
c876b227 | 4967 | window_scroll_pixel_based_preserve_x = it.current_x; |
c525d842 | 4968 | } |
5500c422 GM |
4969 | } |
4970 | else | |
c876b227 SM |
4971 | window_scroll_pixel_based_preserve_y |
4972 | = window_scroll_pixel_based_preserve_x = -1; | |
5500c422 GM |
4973 | |
4974 | /* Move iterator it from start the specified distance forward or | |
4975 | backward. The result is the new window start. */ | |
4976 | start_display (&it, w, start); | |
4977 | if (whole) | |
4978 | { | |
d311d28c | 4979 | ptrdiff_t start_pos = IT_CHARPOS (it); |
fdda0220 | 4980 | int dy = frame_line_height; |
e856c216 KS |
4981 | dy = max ((window_box_height (w) |
4982 | - next_screen_context_lines * dy), | |
4983 | dy) * n; | |
d72340d4 GM |
4984 | |
4985 | /* Note that move_it_vertically always moves the iterator to the | |
4986 | start of a line. So, if the last line doesn't have a newline, | |
4987 | we would end up at the start of the line ending at ZV. */ | |
4988 | if (dy <= 0) | |
e856c216 KS |
4989 | { |
4990 | move_it_vertically_backward (&it, -dy); | |
5a857365 | 4991 | /* Ensure we actually do move, e.g. in case we are currently |
e856c216 KS |
4992 | looking at an image that is taller that the window height. */ |
4993 | while (start_pos == IT_CHARPOS (it) | |
4994 | && start_pos > BEGV) | |
e4cc2dfc | 4995 | move_it_by_lines (&it, -1); |
e856c216 | 4996 | } |
d72340d4 | 4997 | else if (dy > 0) |
bed83ee4 | 4998 | { |
bed83ee4 KS |
4999 | move_it_to (&it, ZV, -1, it.current_y + dy, -1, |
5000 | MOVE_TO_POS | MOVE_TO_Y); | |
5a857365 | 5001 | /* Ensure we actually do move, e.g. in case we are currently |
bed83ee4 KS |
5002 | looking at an image that is taller that the window height. */ |
5003 | while (start_pos == IT_CHARPOS (it) | |
5004 | && start_pos < ZV) | |
e4cc2dfc | 5005 | move_it_by_lines (&it, 1); |
bed83ee4 | 5006 | } |
5500c422 GM |
5007 | } |
5008 | else | |
e4cc2dfc | 5009 | move_it_by_lines (&it, n); |
5500c422 | 5010 | |
96ae58c8 RS |
5011 | /* We failed if we find ZV is already on the screen (scrolling up, |
5012 | means there's nothing past the end), or if we can't start any | |
5013 | earlier (scrolling down, means there's nothing past the top). */ | |
5500c422 | 5014 | if ((n > 0 && IT_CHARPOS (it) == ZV) |
96ae58c8 | 5015 | || (n < 0 && IT_CHARPOS (it) == CHARPOS (start))) |
5500c422 | 5016 | { |
5cdb3cf3 MB |
5017 | if (IT_CHARPOS (it) == ZV) |
5018 | { | |
07ce8b53 RS |
5019 | if (it.current_y < it.last_visible_y |
5020 | && (it.current_y + it.max_ascent + it.max_descent | |
3f489dc7 | 5021 | > it.last_visible_y)) |
a74eca50 GM |
5022 | { |
5023 | /* The last line was only partially visible, make it fully | |
5024 | visible. */ | |
5025 | w->vscroll = (it.last_visible_y | |
5026 | - it.current_y + it.max_ascent + it.max_descent); | |
bd0443bb | 5027 | adjust_frame_glyphs (it.f); |
a74eca50 | 5028 | } |
5cdb3cf3 | 5029 | else |
57b3e30b | 5030 | { |
35928349 | 5031 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5032 | if (noerror) |
5033 | return; | |
5034 | else if (n < 0) /* could happen with empty buffers */ | |
5035 | xsignal0 (Qbeginning_of_buffer); | |
5036 | else | |
5037 | xsignal0 (Qend_of_buffer); | |
5038 | } | |
5cdb3cf3 | 5039 | } |
5500c422 | 5040 | else |
5cdb3cf3 MB |
5041 | { |
5042 | if (w->vscroll != 0) | |
5043 | /* The first line was only partially visible, make it fully | |
5044 | visible. */ | |
5045 | w->vscroll = 0; | |
5cdb3cf3 | 5046 | else |
57b3e30b | 5047 | { |
35928349 | 5048 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5049 | if (noerror) |
5050 | return; | |
5051 | else | |
5052 | xsignal0 (Qbeginning_of_buffer); | |
5053 | } | |
5cdb3cf3 MB |
5054 | } |
5055 | ||
5056 | /* If control gets here, then we vscrolled. */ | |
5057 | ||
e74aeda8 | 5058 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
5cdb3cf3 MB |
5059 | |
5060 | /* Don't try to change the window start below. */ | |
5061 | vscrolled = 1; | |
5500c422 GM |
5062 | } |
5063 | ||
5cdb3cf3 MB |
5064 | if (! vscrolled) |
5065 | { | |
d311d28c PE |
5066 | ptrdiff_t pos = IT_CHARPOS (it); |
5067 | ptrdiff_t bytepos; | |
e68def1e AS |
5068 | |
5069 | /* If in the middle of a multi-glyph character move forward to | |
5070 | the next character. */ | |
5071 | if (in_display_vector_p (&it)) | |
5072 | { | |
5073 | ++pos; | |
5074 | move_it_to (&it, pos, -1, -1, -1, MOVE_TO_POS); | |
5075 | } | |
5076 | ||
5cdb3cf3 | 5077 | /* Set the window start, and set up the window for redisplay. */ |
e74aeda8 | 5078 | set_marker_restricted_both (w->start, w->contents, IT_CHARPOS (it), |
f74de345 | 5079 | IT_BYTEPOS (it)); |
4c1acb95 | 5080 | bytepos = marker_byte_position (w->start); |
c98ff5dd DA |
5081 | w->start_at_line_beg = (pos == BEGV || FETCH_BYTE (bytepos - 1) == '\n'); |
5082 | w->update_mode_line = 1; | |
5cdb3cf3 MB |
5083 | /* Set force_start so that redisplay_window will run the |
5084 | window-scroll-functions. */ | |
c98ff5dd | 5085 | w->force_start = 1; |
5cdb3cf3 | 5086 | } |
177c0ea7 | 5087 | |
dc297565 RS |
5088 | /* The rest of this function uses current_y in a nonstandard way, |
5089 | not including the height of the header line if any. */ | |
5500c422 | 5090 | it.current_y = it.vpos = 0; |
177c0ea7 | 5091 | |
940f53e5 RS |
5092 | /* Move PT out of scroll margins. |
5093 | This code wants current_y to be zero at the window start position | |
5094 | even if there is a header line. */ | |
fdda0220 EZ |
5095 | window_total_lines |
5096 | = w->total_lines * WINDOW_FRAME_LINE_HEIGHT (w) / frame_line_height; | |
940f53e5 | 5097 | this_scroll_margin = max (0, scroll_margin); |
3a45383a | 5098 | this_scroll_margin |
fdda0220 EZ |
5099 | = min (this_scroll_margin, window_total_lines / 4); |
5100 | this_scroll_margin *= frame_line_height; | |
940f53e5 RS |
5101 | |
5102 | if (n > 0) | |
5500c422 | 5103 | { |
940f53e5 RS |
5104 | /* We moved the window start towards ZV, so PT may be now |
5105 | in the scroll margin at the top. */ | |
5106 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
bdf4ec93 RS |
5107 | if (IT_CHARPOS (it) == PT && it.current_y >= this_scroll_margin |
5108 | && (NILP (Vscroll_preserve_screen_position) | |
5109 | || EQ (Vscroll_preserve_screen_position, Qt))) | |
940f53e5 RS |
5110 | /* We found PT at a legitimate height. Leave it alone. */ |
5111 | ; | |
66fe93d1 | 5112 | else if (window_scroll_pixel_based_preserve_y >= 0) |
940f53e5 | 5113 | { |
fa3c3426 RS |
5114 | /* If we have a header line, take account of it. |
5115 | This is necessary because we set it.current_y to 0, above. */ | |
c876b227 SM |
5116 | move_it_to (&it, -1, |
5117 | window_scroll_pixel_based_preserve_x, | |
66fe93d1 LT |
5118 | window_scroll_pixel_based_preserve_y |
5119 | - (WINDOW_WANTS_HEADER_LINE_P (w) ? 1 : 0 ), | |
c876b227 | 5120 | -1, MOVE_TO_Y | MOVE_TO_X); |
940f53e5 RS |
5121 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5122 | } | |
5123 | else | |
5500c422 | 5124 | { |
5500c422 | 5125 | while (it.current_y < this_scroll_margin) |
e9b2c961 RS |
5126 | { |
5127 | int prev = it.current_y; | |
e4cc2dfc | 5128 | move_it_by_lines (&it, 1); |
e9b2c961 RS |
5129 | if (prev == it.current_y) |
5130 | break; | |
5131 | } | |
5500c422 GM |
5132 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5133 | } | |
940f53e5 RS |
5134 | } |
5135 | else if (n < 0) | |
5136 | { | |
d311d28c | 5137 | ptrdiff_t charpos, bytepos; |
aed328bf | 5138 | int partial_p; |
940f53e5 | 5139 | |
66fe93d1 LT |
5140 | /* Save our position, for the |
5141 | window_scroll_pixel_based_preserve_y case. */ | |
940f53e5 RS |
5142 | charpos = IT_CHARPOS (it); |
5143 | bytepos = IT_BYTEPOS (it); | |
5cdb3cf3 | 5144 | |
940f53e5 RS |
5145 | /* We moved the window start towards BEGV, so PT may be now |
5146 | in the scroll margin at the bottom. */ | |
5147 | move_it_to (&it, PT, -1, | |
7ad53239 RS |
5148 | (it.last_visible_y - CURRENT_HEADER_LINE_HEIGHT (w) |
5149 | - this_scroll_margin - 1), | |
5150 | -1, | |
940f53e5 RS |
5151 | MOVE_TO_POS | MOVE_TO_Y); |
5152 | ||
aed328bf KS |
5153 | /* Save our position, in case it's correct. */ |
5154 | charpos = IT_CHARPOS (it); | |
5155 | bytepos = IT_BYTEPOS (it); | |
5156 | ||
5157 | /* See if point is on a partially visible line at the end. */ | |
5158 | if (it.what == IT_EOB) | |
5159 | partial_p = it.current_y + it.ascent + it.descent > it.last_visible_y; | |
5160 | else | |
5161 | { | |
e4cc2dfc | 5162 | move_it_by_lines (&it, 1); |
aed328bf KS |
5163 | partial_p = it.current_y > it.last_visible_y; |
5164 | } | |
5165 | ||
bdf4ec93 RS |
5166 | if (charpos == PT && !partial_p |
5167 | && (NILP (Vscroll_preserve_screen_position) | |
5168 | || EQ (Vscroll_preserve_screen_position, Qt))) | |
940f53e5 RS |
5169 | /* We found PT before we found the display margin, so PT is ok. */ |
5170 | ; | |
66fe93d1 | 5171 | else if (window_scroll_pixel_based_preserve_y >= 0) |
940f53e5 | 5172 | { |
d3d50620 | 5173 | SET_TEXT_POS_FROM_MARKER (start, w->start); |
940f53e5 | 5174 | start_display (&it, w, start); |
c525d842 CY |
5175 | /* It would be wrong to subtract CURRENT_HEADER_LINE_HEIGHT |
5176 | here because we called start_display again and did not | |
5177 | alter it.current_y this time. */ | |
c876b227 SM |
5178 | move_it_to (&it, -1, window_scroll_pixel_based_preserve_x, |
5179 | window_scroll_pixel_based_preserve_y, -1, | |
5180 | MOVE_TO_Y | MOVE_TO_X); | |
940f53e5 RS |
5181 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5182 | } | |
5183 | else | |
5184 | { | |
aed328bf | 5185 | if (partial_p) |
5cdb3cf3 MB |
5186 | /* The last line was only partially visible, so back up two |
5187 | lines to make sure we're on a fully visible line. */ | |
5188 | { | |
e4cc2dfc | 5189 | move_it_by_lines (&it, -2); |
5cdb3cf3 MB |
5190 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); |
5191 | } | |
5192 | else | |
5193 | /* No, the position we saved is OK, so use it. */ | |
5194 | SET_PT_BOTH (charpos, bytepos); | |
5500c422 GM |
5195 | } |
5196 | } | |
35928349 | 5197 | bidi_unshelve_cache (itdata, 0); |
5500c422 GM |
5198 | } |
5199 | ||
5200 | ||
5201 | /* Implementation of window_scroll that works based on screen lines. | |
5202 | See the comment of window_scroll for parameter descriptions. */ | |
5203 | ||
5204 | static void | |
56b5d5b1 | 5205 | window_scroll_line_based (Lisp_Object window, int n, bool whole, int noerror) |
7ab12479 JB |
5206 | { |
5207 | register struct window *w = XWINDOW (window); | |
03ab8921 EZ |
5208 | /* Fvertical_motion enters redisplay, which can trigger |
5209 | fontification, which in turn can modify buffer text (e.g., if the | |
5210 | fontification functions replace escape sequences with faces, as | |
5211 | in `grep-mode-font-lock-keywords'). So we use a marker to record | |
5212 | the old point position, to prevent crashes in SET_PT_BOTH. */ | |
5213 | Lisp_Object opoint_marker = Fpoint_marker (); | |
d311d28c | 5214 | register ptrdiff_t pos, pos_byte; |
7ab12479 JB |
5215 | register int ht = window_internal_height (w); |
5216 | register Lisp_Object tem; | |
56b5d5b1 | 5217 | bool lose; |
5500c422 | 5218 | Lisp_Object bolp; |
c54aa166 DA |
5219 | ptrdiff_t startpos = marker_position (w->start); |
5220 | ptrdiff_t startbyte = marker_byte_position (w->start); | |
c876b227 | 5221 | Lisp_Object original_pos = Qnil; |
101d1605 | 5222 | |
d4e7cf01 GM |
5223 | /* If scrolling screen-fulls, compute the number of lines to |
5224 | scroll from the window's height. */ | |
5225 | if (whole) | |
5226 | n *= max (1, ht - next_screen_context_lines); | |
5227 | ||
c876b227 SM |
5228 | if (!NILP (Vscroll_preserve_screen_position)) |
5229 | { | |
5230 | if (window_scroll_preserve_vpos <= 0 | |
1344aad4 TT |
5231 | || !SYMBOLP (KVAR (current_kboard, Vlast_command)) |
5232 | || NILP (Fget (KVAR (current_kboard, Vlast_command), Qscroll_command))) | |
c876b227 SM |
5233 | { |
5234 | struct position posit | |
c54aa166 DA |
5235 | = *compute_motion (startpos, startbyte, 0, 0, 0, |
5236 | PT, ht, 0, -1, w->hscroll, 0, w); | |
c876b227 | 5237 | window_scroll_preserve_vpos = posit.vpos; |
80b00b08 | 5238 | window_scroll_preserve_hpos = posit.hpos + w->hscroll; |
c876b227 SM |
5239 | } |
5240 | ||
5241 | original_pos = Fcons (make_number (window_scroll_preserve_hpos), | |
5242 | make_number (window_scroll_preserve_vpos)); | |
5243 | } | |
0a1f771a | 5244 | |
d834a2e9 | 5245 | XSETFASTINT (tem, PT); |
6ffdb539 | 5246 | tem = Fpos_visible_in_window_p (tem, window, Qnil); |
7ab12479 | 5247 | |
265a9e55 | 5248 | if (NILP (tem)) |
7ab12479 | 5249 | { |
cd2be1dd | 5250 | Fvertical_motion (make_number (- (ht / 2)), window); |
345d45b2 | 5251 | startpos = PT; |
c54aa166 | 5252 | startbyte = PT_BYTE; |
7ab12479 JB |
5253 | } |
5254 | ||
c54aa166 | 5255 | SET_PT_BOTH (startpos, startbyte); |
5ce7b543 | 5256 | lose = n < 0 && PT == BEGV; |
540b6aa0 | 5257 | Fvertical_motion (make_number (n), window); |
5ce7b543 | 5258 | pos = PT; |
b73ea88e | 5259 | pos_byte = PT_BYTE; |
7ab12479 | 5260 | bolp = Fbolp (); |
03ab8921 EZ |
5261 | SET_PT_BOTH (marker_position (opoint_marker), |
5262 | marker_byte_position (opoint_marker)); | |
7ab12479 JB |
5263 | |
5264 | if (lose) | |
f8026fd8 JB |
5265 | { |
5266 | if (noerror) | |
5267 | return; | |
5268 | else | |
ba96a5cf | 5269 | xsignal0 (Qbeginning_of_buffer); |
f8026fd8 | 5270 | } |
7ab12479 JB |
5271 | |
5272 | if (pos < ZV) | |
7ab12479 | 5273 | { |
0c7da84e | 5274 | /* Don't use a scroll margin that is negative or too large. */ |
71f02bc5 | 5275 | int this_scroll_margin = |
5f24fa51 | 5276 | max (0, min (scroll_margin, w->total_lines / 4)); |
0c7da84e | 5277 | |
e74aeda8 | 5278 | set_marker_restricted_both (w->start, w->contents, pos, pos_byte); |
c98ff5dd DA |
5279 | w->start_at_line_beg = !NILP (bolp); |
5280 | w->update_mode_line = 1; | |
345d45b2 RS |
5281 | /* Set force_start so that redisplay_window will run |
5282 | the window-scroll-functions. */ | |
c98ff5dd | 5283 | w->force_start = 1; |
0c7da84e | 5284 | |
bdf4ec93 RS |
5285 | if (!NILP (Vscroll_preserve_screen_position) |
5286 | && (whole || !EQ (Vscroll_preserve_screen_position, Qt))) | |
0c7da84e | 5287 | { |
b73ea88e | 5288 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5289 | Fvertical_motion (original_pos, window); |
0c7da84e | 5290 | } |
101d1605 RS |
5291 | /* If we scrolled forward, put point enough lines down |
5292 | that it is outside the scroll margin. */ | |
5293 | else if (n > 0) | |
0c7da84e | 5294 | { |
101d1605 RS |
5295 | int top_margin; |
5296 | ||
5297 | if (this_scroll_margin > 0) | |
5298 | { | |
b73ea88e | 5299 | SET_PT_BOTH (pos, pos_byte); |
101d1605 RS |
5300 | Fvertical_motion (make_number (this_scroll_margin), window); |
5301 | top_margin = PT; | |
5302 | } | |
5303 | else | |
5304 | top_margin = pos; | |
5305 | ||
03ab8921 EZ |
5306 | if (top_margin <= marker_position (opoint_marker)) |
5307 | SET_PT_BOTH (marker_position (opoint_marker), | |
5308 | marker_byte_position (opoint_marker)); | |
5500c422 | 5309 | else if (!NILP (Vscroll_preserve_screen_position)) |
101d1605 | 5310 | { |
b73ea88e | 5311 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5312 | Fvertical_motion (original_pos, window); |
101d1605 | 5313 | } |
9317a85d | 5314 | else |
335406fc | 5315 | SET_PT (top_margin); |
0c7da84e | 5316 | } |
101d1605 | 5317 | else if (n < 0) |
7ab12479 | 5318 | { |
101d1605 RS |
5319 | int bottom_margin; |
5320 | ||
0c7da84e RS |
5321 | /* If we scrolled backward, put point near the end of the window |
5322 | but not within the scroll margin. */ | |
b73ea88e | 5323 | SET_PT_BOTH (pos, pos_byte); |
0c7da84e | 5324 | tem = Fvertical_motion (make_number (ht - this_scroll_margin), window); |
101d1605 RS |
5325 | if (XFASTINT (tem) == ht - this_scroll_margin) |
5326 | bottom_margin = PT; | |
5327 | else | |
5328 | bottom_margin = PT + 1; | |
5329 | ||
03ab8921 EZ |
5330 | if (bottom_margin > marker_position (opoint_marker)) |
5331 | SET_PT_BOTH (marker_position (opoint_marker), | |
5332 | marker_byte_position (opoint_marker)); | |
7ab12479 | 5333 | else |
101d1605 | 5334 | { |
5500c422 | 5335 | if (!NILP (Vscroll_preserve_screen_position)) |
9317a85d | 5336 | { |
b73ea88e | 5337 | SET_PT_BOTH (pos, pos_byte); |
c876b227 | 5338 | Fvertical_motion (original_pos, window); |
9317a85d RS |
5339 | } |
5340 | else | |
5341 | Fvertical_motion (make_number (-1), window); | |
101d1605 | 5342 | } |
7ab12479 JB |
5343 | } |
5344 | } | |
5345 | else | |
f8026fd8 JB |
5346 | { |
5347 | if (noerror) | |
5348 | return; | |
5349 | else | |
ba96a5cf | 5350 | xsignal0 (Qend_of_buffer); |
f8026fd8 | 5351 | } |
7ab12479 | 5352 | } |
5500c422 GM |
5353 | |
5354 | ||
5355 | /* Scroll selected_window up or down. If N is nil, scroll a | |
5356 | screen-full which is defined as the height of the window minus | |
5357 | next_screen_context_lines. If N is the symbol `-', scroll. | |
5358 | DIRECTION may be 1 meaning to scroll down, or -1 meaning to scroll | |
5359 | up. This is the guts of Fscroll_up and Fscroll_down. */ | |
7ab12479 JB |
5360 | |
5361 | static void | |
971de7fb | 5362 | scroll_command (Lisp_Object n, int direction) |
7ab12479 | 5363 | { |
d311d28c | 5364 | ptrdiff_t count = SPECPDL_INDEX (); |
7ab12479 | 5365 | |
a54e2c05 | 5366 | eassert (eabs (direction) == 1); |
5500c422 GM |
5367 | |
5368 | /* If selected window's buffer isn't current, make it current for | |
5369 | the moment. But don't screw up if window_scroll gets an error. */ | |
e74aeda8 | 5370 | if (XBUFFER (XWINDOW (selected_window)->contents) != current_buffer) |
95605e15 JB |
5371 | { |
5372 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
e74aeda8 | 5373 | Fset_buffer (XWINDOW (selected_window)->contents); |
5500c422 GM |
5374 | |
5375 | /* Make redisplay consider other windows than just selected_window. */ | |
94ae2ad4 | 5376 | windows_or_buffers_changed = 37; |
95605e15 | 5377 | } |
7ab12479 | 5378 | |
265a9e55 | 5379 | if (NILP (n)) |
d4e7cf01 | 5380 | window_scroll (selected_window, direction, 1, 0); |
7ab12479 | 5381 | else if (EQ (n, Qminus)) |
d4e7cf01 | 5382 | window_scroll (selected_window, -direction, 1, 0); |
7ab12479 JB |
5383 | else |
5384 | { | |
5385 | n = Fprefix_numeric_value (n); | |
101d1605 | 5386 | window_scroll (selected_window, XINT (n) * direction, 0, 0); |
7ab12479 | 5387 | } |
95605e15 JB |
5388 | |
5389 | unbind_to (count, Qnil); | |
7ab12479 JB |
5390 | } |
5391 | ||
e0965597 | 5392 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "^P", |
12bb3111 | 5393 | doc: /* Scroll text of selected window upward ARG lines. |
a0a37a6f | 5394 | If ARG is omitted or nil, scroll upward by a near full screen. |
fdb82f93 PJ |
5395 | A near full screen is `next-screen-context-lines' less than a full screen. |
5396 | Negative ARG means scroll downward. | |
5397 | If ARG is the atom `-', scroll downward by nearly full screen. | |
5398 | When calling from a program, supply as argument a number, nil, or `-'. */) | |
5842a27b | 5399 | (Lisp_Object arg) |
7ab12479 | 5400 | { |
413430c5 | 5401 | scroll_command (arg, 1); |
7ab12479 JB |
5402 | return Qnil; |
5403 | } | |
5404 | ||
e0965597 | 5405 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "^P", |
12bb3111 | 5406 | doc: /* Scroll text of selected window down ARG lines. |
a0a37a6f | 5407 | If ARG is omitted or nil, scroll down by a near full screen. |
fdb82f93 PJ |
5408 | A near full screen is `next-screen-context-lines' less than a full screen. |
5409 | Negative ARG means scroll upward. | |
5410 | If ARG is the atom `-', scroll upward by nearly full screen. | |
5411 | When calling from a program, supply as argument a number, nil, or `-'. */) | |
5842a27b | 5412 | (Lisp_Object arg) |
7ab12479 | 5413 | { |
413430c5 | 5414 | scroll_command (arg, -1); |
7ab12479 JB |
5415 | return Qnil; |
5416 | } | |
ccd0664b RS |
5417 | \f |
5418 | DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0, | |
fdb82f93 | 5419 | doc: /* Return the other window for \"other window scroll\" commands. |
fdb82f93 | 5420 | If `other-window-scroll-buffer' is non-nil, a window |
a0a37a6f LT |
5421 | showing that buffer is used. |
5422 | If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
5423 | specifies the window. This takes precedence over | |
5424 | `other-window-scroll-buffer'. */) | |
5842a27b | 5425 | (void) |
7ab12479 | 5426 | { |
ccd0664b | 5427 | Lisp_Object window; |
7ab12479 JB |
5428 | |
5429 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 5430 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
5431 | window = Vminibuf_scroll_window; |
5432 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 5433 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
5434 | { |
5435 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 5436 | if (NILP (window)) |
87478b52 | 5437 | window = display_buffer (Vother_window_scroll_buffer, Qt, Qnil); |
7ab12479 JB |
5438 | } |
5439 | else | |
dbc4e1c1 JB |
5440 | { |
5441 | /* Nothing specified; look for a neighboring window on the same | |
5442 | frame. */ | |
5443 | window = Fnext_window (selected_window, Qnil, Qnil); | |
5444 | ||
5445 | if (EQ (window, selected_window)) | |
5446 | /* That didn't get us anywhere; look for a window on another | |
5447 | visible frame. */ | |
5448 | do | |
5449 | window = Fnext_window (window, Qnil, Qt); | |
5450 | while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
5451 | && ! EQ (window, selected_window)); | |
5452 | } | |
5453 | ||
b7826503 | 5454 | CHECK_LIVE_WINDOW (window); |
7ab12479 JB |
5455 | |
5456 | if (EQ (window, selected_window)) | |
5457 | error ("There is no other window"); | |
5458 | ||
ccd0664b RS |
5459 | return window; |
5460 | } | |
5461 | ||
5462 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
fdb82f93 PJ |
5463 | doc: /* Scroll next window upward ARG lines; or near full screen if no ARG. |
5464 | A near full screen is `next-screen-context-lines' less than a full screen. | |
5465 | The next window is the one below the current one; or the one at the top | |
5466 | if the current one is at the bottom. Negative ARG means scroll downward. | |
5467 | If ARG is the atom `-', scroll downward by nearly full screen. | |
5468 | When calling from a program, supply as argument a number, nil, or `-'. | |
5469 | ||
fdb82f93 | 5470 | If `other-window-scroll-buffer' is non-nil, scroll the window |
a0a37a6f LT |
5471 | showing that buffer, popping the buffer up if necessary. |
5472 | If in the minibuffer, `minibuffer-scroll-window' if non-nil | |
5473 | specifies the window to scroll. This takes precedence over | |
5474 | `other-window-scroll-buffer'. */) | |
5842a27b | 5475 | (Lisp_Object arg) |
ccd0664b | 5476 | { |
d4e7cf01 GM |
5477 | Lisp_Object window; |
5478 | struct window *w; | |
d311d28c | 5479 | ptrdiff_t count = SPECPDL_INDEX (); |
ccd0664b RS |
5480 | |
5481 | window = Fother_window_for_scrolling (); | |
7ab12479 | 5482 | w = XWINDOW (window); |
7ab12479 JB |
5483 | |
5484 | /* Don't screw up if window_scroll gets an error. */ | |
5485 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
94ae2ad4 | 5486 | windows_or_buffers_changed = 38; |
7ab12479 | 5487 | |
e74aeda8 | 5488 | Fset_buffer (w->contents); |
ffcd945e | 5489 | SET_PT_BOTH (marker_position (w->pointm), marker_byte_position (w->pointm)); |
7ab12479 | 5490 | |
413430c5 | 5491 | if (NILP (arg)) |
d4e7cf01 | 5492 | window_scroll (window, 1, 1, 1); |
413430c5 | 5493 | else if (EQ (arg, Qminus)) |
d4e7cf01 | 5494 | window_scroll (window, -1, 1, 1); |
7ab12479 JB |
5495 | else |
5496 | { | |
413430c5 | 5497 | if (CONSP (arg)) |
7d7bbefd | 5498 | arg = XCAR (arg); |
b7826503 | 5499 | CHECK_NUMBER (arg); |
101d1605 | 5500 | window_scroll (window, XINT (arg), 0, 1); |
7ab12479 JB |
5501 | } |
5502 | ||
d3d50620 | 5503 | set_marker_both (w->pointm, Qnil, PT, PT_BYTE); |
f4e7b2c2 | 5504 | unbind_to (count, Qnil); |
7ab12479 JB |
5505 | |
5506 | return Qnil; | |
5507 | } | |
5508 | \f | |
e0965597 | 5509 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 2, "^P\np", |
fdb82f93 | 5510 | doc: /* Scroll selected window display ARG columns left. |
2fe41216 EZ |
5511 | Default for ARG is window width minus 2. |
5512 | Value is the total amount of leftward horizontal scrolling in | |
5513 | effect after the change. | |
23fe745a | 5514 | If SET-MINIMUM is non-nil, the new scroll amount becomes the |
dc297565 | 5515 | lower bound for automatic scrolling, i.e. automatic scrolling |
2fe41216 | 5516 | will not scroll a window to a column less than the value returned |
dc297565 | 5517 | by this function. This happens in an interactive call. */) |
5842a27b | 5518 | (register Lisp_Object arg, Lisp_Object set_minimum) |
7ab12479 | 5519 | { |
c67fa410 | 5520 | struct window *w = XWINDOW (selected_window); |
aa754e6a | 5521 | EMACS_INT requested_arg = (NILP (arg) |
880e6158 | 5522 | ? window_body_width (w, 0) - 2 |
aa754e6a | 5523 | : XINT (Fprefix_numeric_value (arg))); |
24a212eb | 5524 | Lisp_Object result = set_window_hscroll (w, w->hscroll + requested_arg); |
c67fa410 | 5525 | |
dc297565 | 5526 | if (!NILP (set_minimum)) |
c67fa410 GM |
5527 | w->min_hscroll = w->hscroll; |
5528 | ||
5529 | return result; | |
7ab12479 JB |
5530 | } |
5531 | ||
e0965597 | 5532 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 2, "^P\np", |
fdb82f93 | 5533 | doc: /* Scroll selected window display ARG columns right. |
2fe41216 EZ |
5534 | Default for ARG is window width minus 2. |
5535 | Value is the total amount of leftward horizontal scrolling in | |
5536 | effect after the change. | |
23fe745a | 5537 | If SET-MINIMUM is non-nil, the new scroll amount becomes the |
dc297565 | 5538 | lower bound for automatic scrolling, i.e. automatic scrolling |
2fe41216 | 5539 | will not scroll a window to a column less than the value returned |
dc297565 | 5540 | by this function. This happens in an interactive call. */) |
5842a27b | 5541 | (register Lisp_Object arg, Lisp_Object set_minimum) |
7ab12479 | 5542 | { |
c67fa410 | 5543 | struct window *w = XWINDOW (selected_window); |
aa754e6a | 5544 | EMACS_INT requested_arg = (NILP (arg) |
880e6158 | 5545 | ? window_body_width (w, 0) - 2 |
aa754e6a | 5546 | : XINT (Fprefix_numeric_value (arg))); |
24a212eb | 5547 | Lisp_Object result = set_window_hscroll (w, w->hscroll - requested_arg); |
177c0ea7 | 5548 | |
dc297565 | 5549 | if (!NILP (set_minimum)) |
c67fa410 GM |
5550 | w->min_hscroll = w->hscroll; |
5551 | ||
5552 | return result; | |
7ab12479 JB |
5553 | } |
5554 | ||
fa832261 KS |
5555 | DEFUN ("minibuffer-selected-window", Fminibuffer_selected_window, Sminibuffer_selected_window, 0, 0, 0, |
5556 | doc: /* Return the window which was selected when entering the minibuffer. | |
12bb3111 | 5557 | Returns nil, if selected window is not a minibuffer window. */) |
5842a27b | 5558 | (void) |
fa832261 KS |
5559 | { |
5560 | if (minibuf_level > 0 | |
5561 | && MINI_WINDOW_P (XWINDOW (selected_window)) | |
fa832261 KS |
5562 | && WINDOW_LIVE_P (minibuf_selected_window)) |
5563 | return minibuf_selected_window; | |
5564 | ||
5565 | return Qnil; | |
5566 | } | |
5567 | ||
12c8b416 GM |
5568 | /* Value is the number of lines actually displayed in window W, |
5569 | as opposed to its height. */ | |
5570 | ||
5571 | static int | |
971de7fb | 5572 | displayed_window_lines (struct window *w) |
12c8b416 GM |
5573 | { |
5574 | struct it it; | |
5575 | struct text_pos start; | |
5576 | int height = window_box_height (w); | |
5577 | struct buffer *old_buffer; | |
5578 | int bottom_y; | |
57b3e30b | 5579 | void *itdata = NULL; |
12c8b416 | 5580 | |
e74aeda8 | 5581 | if (XBUFFER (w->contents) != current_buffer) |
12c8b416 GM |
5582 | { |
5583 | old_buffer = current_buffer; | |
e74aeda8 | 5584 | set_buffer_internal (XBUFFER (w->contents)); |
12c8b416 GM |
5585 | } |
5586 | else | |
5587 | old_buffer = NULL; | |
5588 | ||
521b203e GM |
5589 | /* In case W->start is out of the accessible range, do something |
5590 | reasonable. This happens in Info mode when Info-scroll-down | |
5591 | calls (recenter -1) while W->start is 1. */ | |
cf91889a | 5592 | CLIP_TEXT_POS_FROM_MARKER (start, w->start); |
521b203e | 5593 | |
57b3e30b | 5594 | itdata = bidi_shelve_cache (); |
12c8b416 GM |
5595 | start_display (&it, w, start); |
5596 | move_it_vertically (&it, height); | |
c8bc6f65 | 5597 | bottom_y = line_bottom_y (&it); |
35928349 | 5598 | bidi_unshelve_cache (itdata, 0); |
12c8b416 | 5599 | |
1de65f51 RS |
5600 | /* rms: On a non-window display, |
5601 | the value of it.vpos at the bottom of the screen | |
5602 | seems to be 1 larger than window_box_height (w). | |
5603 | This kludge fixes a bug whereby (move-to-window-line -1) | |
5604 | when ZV is on the last screen line | |
5605 | moves to the previous screen line instead of the last one. */ | |
d3d50620 | 5606 | if (! FRAME_WINDOW_P (XFRAME (w->frame))) |
1de65f51 RS |
5607 | height++; |
5608 | ||
12c8b416 GM |
5609 | /* Add in empty lines at the bottom of the window. */ |
5610 | if (bottom_y < height) | |
5611 | { | |
949cf20f | 5612 | int uy = FRAME_LINE_HEIGHT (it.f); |
c8bc6f65 | 5613 | it.vpos += (height - bottom_y + uy - 1) / uy; |
12c8b416 GM |
5614 | } |
5615 | ||
c8bc6f65 GM |
5616 | if (old_buffer) |
5617 | set_buffer_internal (old_buffer); | |
5618 | ||
12c8b416 GM |
5619 | return it.vpos; |
5620 | } | |
5621 | ||
5622 | ||
a7ca3326 | 5623 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", |
666e158e | 5624 | doc: /* Center point in selected window and maybe redisplay frame. |
3b166f09 | 5625 | With a numeric prefix argument ARG, recenter putting point on screen line ARG |
12bb3111 | 5626 | relative to the selected window. If ARG is negative, it counts up from the |
fdb82f93 PJ |
5627 | bottom of the window. (ARG should be less than the height of the window.) |
5628 | ||
666e158e MB |
5629 | If ARG is omitted or nil, then recenter with point on the middle line of |
5630 | the selected window; if the variable `recenter-redisplay' is non-nil, | |
5631 | also erase the entire frame and redraw it (when `auto-resize-tool-bars' | |
5632 | is set to `grow-only', this resets the tool-bar's height to the minimum | |
5633 | height needed); if `recenter-redisplay' has the special value `tty', | |
53524d93 | 5634 | then only tty frames are redrawn. |
7d1d98ee | 5635 | |
fdb82f93 PJ |
5636 | Just C-u as prefix means put point in the center of the window |
5637 | and redisplay normally--don't erase and redraw the frame. */) | |
5842a27b | 5638 | (register Lisp_Object arg) |
7ab12479 | 5639 | { |
6df47b59 | 5640 | struct window *w = XWINDOW (selected_window); |
e74aeda8 | 5641 | struct buffer *buf = XBUFFER (w->contents); |
478292ed | 5642 | struct buffer *obuf = current_buffer; |
d7e6881a | 5643 | bool center_p = 0; |
d311d28c | 5644 | ptrdiff_t charpos, bytepos; |
71f02bc5 | 5645 | EMACS_INT iarg IF_LINT (= 0); |
f6b43440 | 5646 | int this_scroll_margin; |
7ab12479 | 5647 | |
0fa5d25b RS |
5648 | /* If redisplay is suppressed due to an error, try again. */ |
5649 | obuf->display_error_modiff = 0; | |
5650 | ||
413430c5 | 5651 | if (NILP (arg)) |
7ab12479 | 5652 | { |
666e158e MB |
5653 | if (!NILP (Vrecenter_redisplay) |
5654 | && (!EQ (Vrecenter_redisplay, Qtty) | |
5655 | || !NILP (Ftty_type (selected_frame)))) | |
5656 | { | |
ebfa62c0 | 5657 | ptrdiff_t i; |
f02d6d5c | 5658 | |
666e158e MB |
5659 | /* Invalidate pixel data calculated for all compositions. */ |
5660 | for (i = 0; i < n_compositions; i++) | |
5661 | composition_table[i]->font = NULL; | |
742516e0 | 5662 | #if defined (HAVE_WINDOW_SYSTEM) && ! defined (USE_GTK) && ! defined (HAVE_NS) |
666e158e | 5663 | WINDOW_XFRAME (w)->minimize_tool_bar_window_p = 1; |
742516e0 | 5664 | #endif |
666e158e MB |
5665 | Fredraw_frame (WINDOW_FRAME (w)); |
5666 | SET_FRAME_GARBAGED (WINDOW_XFRAME (w)); | |
5667 | } | |
7d1d98ee | 5668 | |
6df47b59 | 5669 | center_p = 1; |
7ab12479 | 5670 | } |
413430c5 | 5671 | else if (CONSP (arg)) /* Just C-u. */ |
6df47b59 | 5672 | center_p = 1; |
7ab12479 JB |
5673 | else |
5674 | { | |
413430c5 | 5675 | arg = Fprefix_numeric_value (arg); |
b7826503 | 5676 | CHECK_NUMBER (arg); |
ae12ecd7 | 5677 | iarg = XINT (arg); |
7ab12479 JB |
5678 | } |
5679 | ||
478292ed | 5680 | set_buffer_internal (buf); |
7ab12479 | 5681 | |
f6b43440 RS |
5682 | /* Do this after making BUF current |
5683 | in case scroll_margin is buffer-local. */ | |
71f02bc5 | 5684 | this_scroll_margin = |
5f24fa51 | 5685 | max (0, min (scroll_margin, w->total_lines / 4)); |
f6b43440 | 5686 | |
521b203e | 5687 | /* Handle centering on a graphical frame specially. Such frames can |
6df47b59 GM |
5688 | have variable-height lines and centering point on the basis of |
5689 | line counts would lead to strange effects. */ | |
d3d50620 | 5690 | if (FRAME_WINDOW_P (XFRAME (w->frame))) |
6df47b59 | 5691 | { |
6df47b59 GM |
5692 | if (center_p) |
5693 | { | |
521b203e GM |
5694 | struct it it; |
5695 | struct text_pos pt; | |
57b3e30b | 5696 | void *itdata = bidi_shelve_cache (); |
177c0ea7 | 5697 | |
521b203e GM |
5698 | SET_TEXT_POS (pt, PT, PT_BYTE); |
5699 | start_display (&it, w, pt); | |
f204989e | 5700 | move_it_vertically_backward (&it, window_box_height (w) / 2); |
521b203e GM |
5701 | charpos = IT_CHARPOS (it); |
5702 | bytepos = IT_BYTEPOS (it); | |
35928349 | 5703 | bidi_unshelve_cache (itdata, 0); |
6df47b59 | 5704 | } |
f6b43440 | 5705 | else if (iarg < 0) |
6df47b59 | 5706 | { |
521b203e GM |
5707 | struct it it; |
5708 | struct text_pos pt; | |
5895d7b9 | 5709 | ptrdiff_t nlines = min (PTRDIFF_MAX, -iarg); |
f204989e KS |
5710 | int extra_line_spacing; |
5711 | int h = window_box_height (w); | |
57b3e30b | 5712 | void *itdata = bidi_shelve_cache (); |
177c0ea7 | 5713 | |
f6b43440 RS |
5714 | iarg = - max (-iarg, this_scroll_margin); |
5715 | ||
521b203e GM |
5716 | SET_TEXT_POS (pt, PT, PT_BYTE); |
5717 | start_display (&it, w, pt); | |
f204989e KS |
5718 | |
5719 | /* Be sure we have the exact height of the full line containing PT. */ | |
e4cc2dfc | 5720 | move_it_by_lines (&it, 0); |
521b203e | 5721 | |
d466fa4d | 5722 | /* The amount of pixels we have to move back is the window |
521b203e GM |
5723 | height minus what's displayed in the line containing PT, |
5724 | and the lines below. */ | |
f204989e KS |
5725 | it.current_y = 0; |
5726 | it.vpos = 0; | |
e4cc2dfc | 5727 | move_it_by_lines (&it, nlines); |
d466fa4d | 5728 | |
f204989e KS |
5729 | if (it.vpos == nlines) |
5730 | h -= it.current_y; | |
5731 | else | |
5732 | { | |
5733 | /* Last line has no newline */ | |
5734 | h -= line_bottom_y (&it); | |
5735 | it.vpos++; | |
5736 | } | |
5737 | ||
5738 | /* Don't reserve space for extra line spacing of last line. */ | |
5739 | extra_line_spacing = it.max_extra_line_spacing; | |
d466fa4d GM |
5740 | |
5741 | /* If we can't move down NLINES lines because we hit | |
5742 | the end of the buffer, count in some empty lines. */ | |
5743 | if (it.vpos < nlines) | |
f204989e KS |
5744 | { |
5745 | nlines -= it.vpos; | |
5746 | extra_line_spacing = it.extra_line_spacing; | |
5747 | h -= nlines * (FRAME_LINE_HEIGHT (it.f) + extra_line_spacing); | |
5748 | } | |
5749 | if (h <= 0) | |
57b3e30b | 5750 | { |
35928349 | 5751 | bidi_unshelve_cache (itdata, 0); |
57b3e30b EZ |
5752 | return Qnil; |
5753 | } | |
201c831a | 5754 | |
f204989e | 5755 | /* Now find the new top line (starting position) of the window. */ |
521b203e | 5756 | start_display (&it, w, pt); |
f204989e KS |
5757 | it.current_y = 0; |
5758 | move_it_vertically_backward (&it, h); | |
5759 | ||
5760 | /* If extra line spacing is present, we may move too far | |
5761 | back. This causes the last line to be only partially | |
5762 | visible (which triggers redisplay to recenter that line | |
5763 | in the middle), so move forward. | |
5764 | But ignore extra line spacing on last line, as it is not | |
5765 | considered to be part of the visible height of the line. | |
5766 | */ | |
5767 | h += extra_line_spacing; | |
5768 | while (-it.current_y > h) | |
e4cc2dfc | 5769 | move_it_by_lines (&it, 1); |
f204989e | 5770 | |
521b203e GM |
5771 | charpos = IT_CHARPOS (it); |
5772 | bytepos = IT_BYTEPOS (it); | |
57b3e30b | 5773 | |
35928349 | 5774 | bidi_unshelve_cache (itdata, 0); |
6df47b59 | 5775 | } |
521b203e GM |
5776 | else |
5777 | { | |
5778 | struct position pos; | |
f6b43440 | 5779 | |
f6b43440 RS |
5780 | iarg = max (iarg, this_scroll_margin); |
5781 | ||
c54aa166 | 5782 | pos = *vmotion (PT, PT_BYTE, -iarg, w); |
521b203e GM |
5783 | charpos = pos.bufpos; |
5784 | bytepos = pos.bytepos; | |
5785 | } | |
5786 | } | |
5787 | else | |
5788 | { | |
5789 | struct position pos; | |
5790 | int ht = window_internal_height (w); | |
5791 | ||
5792 | if (center_p) | |
a4429c5b | 5793 | iarg = ht / 2; |
f567c488 KS |
5794 | else if (iarg < 0) |
5795 | iarg += ht; | |
f6b43440 RS |
5796 | |
5797 | /* Don't let it get into the margin at either top or bottom. */ | |
2dd61a9b DA |
5798 | iarg = clip_to_bounds (this_scroll_margin, iarg, |
5799 | ht - this_scroll_margin - 1); | |
177c0ea7 | 5800 | |
c54aa166 | 5801 | pos = *vmotion (PT, PT_BYTE, - iarg, w); |
6df47b59 GM |
5802 | charpos = pos.bufpos; |
5803 | bytepos = pos.bytepos; | |
5804 | } | |
5805 | ||
5806 | /* Set the new window start. */ | |
e74aeda8 | 5807 | set_marker_both (w->start, w->contents, charpos, bytepos); |
9d93ce29 | 5808 | w->window_end_valid = 0; |
177c0ea7 | 5809 | |
c98ff5dd | 5810 | w->optional_new_start = 1; |
95605b1b | 5811 | |
c98ff5dd DA |
5812 | w->start_at_line_beg = (bytepos == BEGV_BYTE || |
5813 | FETCH_BYTE (bytepos - 1) == '\n'); | |
177c0ea7 | 5814 | |
478292ed | 5815 | set_buffer_internal (obuf); |
7ab12479 JB |
5816 | return Qnil; |
5817 | } | |
b7617575 | 5818 | |
880e6158 | 5819 | DEFUN ("window-text-width", Fwindow_text_width, Swindow_text_width, |
fdb82f93 | 5820 | 0, 1, 0, |
880e6158 | 5821 | doc: /* Return the width in columns of the text display area of WINDOW. |
52162052 | 5822 | WINDOW must be a live window and defaults to the selected one. |
8fef9de1 | 5823 | |
880e6158 MR |
5824 | The returned width does not include dividers, scrollbars, margins, |
5825 | fringes, nor any partial-width columns at the right of the text | |
5826 | area. */) | |
5842a27b | 5827 | (Lisp_Object window) |
81fe0836 | 5828 | { |
52162052 | 5829 | struct window *w = decode_live_window (window); |
880e6158 MR |
5830 | |
5831 | return make_number (window_box_width (w, TEXT_AREA) | |
5832 | / FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w))); | |
81fe0836 MB |
5833 | } |
5834 | ||
880e6158 MR |
5835 | DEFUN ("window-text-height", Fwindow_text_height, Swindow_text_height, |
5836 | 0, 1, 0, | |
5837 | doc: /* Return the height in lines of the text display area of WINDOW. | |
5838 | WINDOW must be a live window and defaults to the selected one. | |
81fe0836 | 5839 | |
880e6158 MR |
5840 | The returned height does not include dividers, the mode line, any header |
5841 | line, nor any partial-height lines at the bottom of the text area. */) | |
5842 | (Lisp_Object window) | |
5843 | { | |
5844 | struct window *w = decode_live_window (window); | |
5845 | ||
5846 | return make_number (window_box_height (w) | |
5847 | / FRAME_LINE_HEIGHT (WINDOW_XFRAME (w))); | |
5848 | } | |
7ab12479 JB |
5849 | \f |
5850 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
fdb82f93 PJ |
5851 | 1, 1, "P", |
5852 | doc: /* Position point relative to window. | |
87e68db4 JB |
5853 | ARG nil means position point at center of window. |
5854 | Else, ARG specifies vertical position within the window; | |
fdb82f93 | 5855 | zero means top of window, negative means relative to bottom of window. */) |
5842a27b | 5856 | (Lisp_Object arg) |
7ab12479 | 5857 | { |
b7617575 GM |
5858 | struct window *w = XWINDOW (selected_window); |
5859 | int lines, start; | |
540b6aa0 | 5860 | Lisp_Object window; |
f6b43440 RS |
5861 | #if 0 |
5862 | int this_scroll_margin; | |
5863 | #endif | |
7ab12479 | 5864 | |
e74aeda8 DA |
5865 | if (!(BUFFERP (w->contents) && XBUFFER (w->contents) == current_buffer)) |
5866 | /* This test is needed to make sure PT/PT_BYTE make sense in w->contents | |
794b75c7 SM |
5867 | when passed below to set_marker_both. */ |
5868 | error ("move-to-window-line called from unrelated buffer"); | |
6dc1d2d3 | 5869 | |
b7617575 | 5870 | window = selected_window; |
d3d50620 | 5871 | start = marker_position (w->start); |
7ab12479 JB |
5872 | if (start < BEGV || start > ZV) |
5873 | { | |
b7617575 | 5874 | int height = window_internal_height (w); |
cd2be1dd | 5875 | Fvertical_motion (make_number (- (height / 2)), window); |
e74aeda8 | 5876 | set_marker_both (w->start, w->contents, PT, PT_BYTE); |
c98ff5dd DA |
5877 | w->start_at_line_beg = !NILP (Fbolp ()); |
5878 | w->force_start = 1; | |
7ab12479 JB |
5879 | } |
5880 | else | |
d3d50620 | 5881 | Fgoto_char (w->start); |
7ab12479 | 5882 | |
b7617575 | 5883 | lines = displayed_window_lines (w); |
f6b43440 RS |
5884 | |
5885 | #if 0 | |
71f02bc5 | 5886 | this_scroll_margin = max (0, min (scroll_margin, lines / 4)); |
f6b43440 RS |
5887 | #endif |
5888 | ||
b7617575 GM |
5889 | if (NILP (arg)) |
5890 | XSETFASTINT (arg, lines / 2); | |
5891 | else | |
5892 | { | |
71f02bc5 | 5893 | EMACS_INT iarg = XINT (Fprefix_numeric_value (arg)); |
f6b43440 RS |
5894 | |
5895 | if (iarg < 0) | |
5896 | iarg = iarg + lines; | |
5897 | ||
5898 | #if 0 /* This code would prevent move-to-window-line from moving point | |
5899 | to a place inside the scroll margins (which would cause the | |
5900 | next redisplay to scroll). I wrote this code, but then concluded | |
5901 | it is probably better not to install it. However, it is here | |
5902 | inside #if 0 so as not to lose it. -- rms. */ | |
5903 | ||
5904 | /* Don't let it get into the margin at either top or bottom. */ | |
5905 | iarg = max (iarg, this_scroll_margin); | |
5906 | iarg = min (iarg, lines - this_scroll_margin - 1); | |
5907 | #endif | |
5908 | ||
5909 | arg = make_number (iarg); | |
b7617575 GM |
5910 | } |
5911 | ||
c8bc6f65 | 5912 | /* Skip past a partially visible first line. */ |
163784df | 5913 | if (w->vscroll) |
163784df MB |
5914 | XSETINT (arg, XINT (arg) + 1); |
5915 | ||
540b6aa0 | 5916 | return Fvertical_motion (arg, window); |
7ab12479 | 5917 | } |
5500c422 GM |
5918 | |
5919 | ||
7ab12479 | 5920 | \f |
5500c422 GM |
5921 | /*********************************************************************** |
5922 | Window Configuration | |
5923 | ***********************************************************************/ | |
5924 | ||
7ab12479 JB |
5925 | struct save_window_data |
5926 | { | |
b102ceb1 | 5927 | struct vectorlike_header header; |
bdc727bf | 5928 | Lisp_Object selected_frame; |
7ab12479 JB |
5929 | Lisp_Object current_window; |
5930 | Lisp_Object current_buffer; | |
5931 | Lisp_Object minibuf_scroll_window; | |
3f49fddc | 5932 | Lisp_Object minibuf_selected_window; |
7ab12479 | 5933 | Lisp_Object root_window; |
bdc727bf | 5934 | Lisp_Object focus_frame; |
cbff28e8 RS |
5935 | /* A vector, each of whose elements is a struct saved_window |
5936 | for one window. */ | |
7ab12479 | 5937 | Lisp_Object saved_windows; |
b05b4e27 SM |
5938 | |
5939 | /* All fields above are traced by the GC. | |
6b729d16 | 5940 | From `frame-cols' down, the fields are ignored by the GC. */ |
880e6158 MR |
5941 | /* We should be able to do without the following two. */ |
5942 | int frame_cols, frame_lines; | |
5943 | /* These two should get eventually replaced by their pixelized | |
5944 | counterparts. */ | |
5945 | int frame_menu_bar_lines, frame_tool_bar_lines; | |
5946 | int frame_text_width, frame_text_height; | |
5947 | /* These are currently unused. We need them as soon as we pixelize | |
5948 | them. */ | |
5949 | int frame_menu_bar_height, frame_tool_bar_height; | |
7ab12479 | 5950 | }; |
ff06df24 | 5951 | |
cbff28e8 | 5952 | /* This is saved as a Lisp_Vector */ |
7ab12479 | 5953 | struct saved_window |
ea68264b | 5954 | { |
b102ceb1 | 5955 | struct vectorlike_header header; |
496e208e | 5956 | |
28545e04 | 5957 | Lisp_Object window, buffer, start, pointm, mark; |
880e6158 | 5958 | Lisp_Object pixel_left, pixel_top, pixel_height, pixel_width; |
949cf20f | 5959 | Lisp_Object left_col, top_line, total_cols, total_lines; |
496e208e | 5960 | Lisp_Object normal_cols, normal_lines; |
949cf20f | 5961 | Lisp_Object hscroll, min_hscroll; |
ea68264b GM |
5962 | Lisp_Object parent, prev; |
5963 | Lisp_Object start_at_line_beg; | |
5964 | Lisp_Object display_table; | |
949cf20f KS |
5965 | Lisp_Object left_margin_cols, right_margin_cols; |
5966 | Lisp_Object left_fringe_width, right_fringe_width, fringes_outside_margins; | |
562dd5e9 | 5967 | Lisp_Object scroll_bar_width, vertical_scroll_bar_type, dedicated; |
b6f67890 | 5968 | Lisp_Object combination_limit, window_parameters; |
ea68264b GM |
5969 | }; |
5970 | ||
7ab12479 | 5971 | #define SAVED_WINDOW_N(swv,n) \ |
91f2d272 | 5972 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) |
7ab12479 JB |
5973 | |
5974 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
fdb82f93 | 5975 | doc: /* Return t if OBJECT is a window-configuration object. */) |
5842a27b | 5976 | (Lisp_Object object) |
7ab12479 | 5977 | { |
6ad0381c | 5978 | return WINDOW_CONFIGURATIONP (object) ? Qt : Qnil; |
7ab12479 JB |
5979 | } |
5980 | ||
3f8ab7bd | 5981 | DEFUN ("window-configuration-frame", Fwindow_configuration_frame, Swindow_configuration_frame, 1, 1, 0, |
fdb82f93 | 5982 | doc: /* Return the frame that CONFIG, a window-configuration object, is about. */) |
5842a27b | 5983 | (Lisp_Object config) |
3f8ab7bd RS |
5984 | { |
5985 | register struct save_window_data *data; | |
5986 | struct Lisp_Vector *saved_windows; | |
5987 | ||
663fbbba | 5988 | CHECK_WINDOW_CONFIGURATION (config); |
3f8ab7bd RS |
5989 | |
5990 | data = (struct save_window_data *) XVECTOR (config); | |
5991 | saved_windows = XVECTOR (data->saved_windows); | |
d3d50620 | 5992 | return XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
3f8ab7bd RS |
5993 | } |
5994 | ||
a7ca3326 | 5995 | DEFUN ("set-window-configuration", Fset_window_configuration, |
fdb82f93 PJ |
5996 | Sset_window_configuration, 1, 1, 0, |
5997 | doc: /* Set the configuration of windows and buffers as specified by CONFIGURATION. | |
5998 | CONFIGURATION must be a value previously returned | |
5999 | by `current-window-configuration' (which see). | |
6000 | If CONFIGURATION was made from a frame that is now deleted, | |
6001 | only frame-independent values can be restored. In this case, | |
6002 | the return value is nil. Otherwise the value is t. */) | |
5842a27b | 6003 | (Lisp_Object configuration) |
7ab12479 | 6004 | { |
7ab12479 JB |
6005 | register struct save_window_data *data; |
6006 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 6007 | Lisp_Object new_current_buffer; |
fd482be5 | 6008 | Lisp_Object frame; |
a10c8269 | 6009 | struct frame *f; |
d311d28c | 6010 | ptrdiff_t old_point = -1; |
7ab12479 | 6011 | |
663fbbba | 6012 | CHECK_WINDOW_CONFIGURATION (configuration); |
7ab12479 | 6013 | |
2f83aebe | 6014 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
6015 | saved_windows = XVECTOR (data->saved_windows); |
6016 | ||
7ab12479 | 6017 | new_current_buffer = data->current_buffer; |
e578f381 | 6018 | if (!BUFFER_LIVE_P (XBUFFER (new_current_buffer))) |
7ab12479 | 6019 | new_current_buffer = Qnil; |
72695e47 | 6020 | else |
73cadfc1 DK |
6021 | { |
6022 | if (XBUFFER (new_current_buffer) == current_buffer) | |
e67a1dea SM |
6023 | /* The code further down "preserves point" by saving here PT in |
6024 | old_point and then setting it later back into PT. When the | |
6025 | current-selected-window and the final-selected-window both show | |
6026 | the current buffer, this suffers from the problem that the | |
6027 | current PT is the window-point of the current-selected-window, | |
6028 | while the final PT is the point of the final-selected-window, so | |
6029 | this copy from one PT to the other would end up moving the | |
6030 | window-point of the final-selected-window to the window-point of | |
6031 | the current-selected-window. So we have to be careful which | |
6032 | point of the current-buffer we copy into old_point. */ | |
e74aeda8 | 6033 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer) |
e67a1dea | 6034 | && WINDOWP (selected_window) |
e74aeda8 | 6035 | && EQ (XWINDOW (selected_window)->contents, new_current_buffer) |
e67a1dea | 6036 | && !EQ (selected_window, data->current_window)) |
4c1acb95 | 6037 | old_point = marker_position (XWINDOW (data->current_window)->pointm); |
e67a1dea SM |
6038 | else |
6039 | old_point = PT; | |
73cadfc1 | 6040 | else |
203eb0aa SM |
6041 | /* BUF_PT (XBUFFER (new_current_buffer)) gives us the position of |
6042 | point in new_current_buffer as of the last time this buffer was | |
6043 | used. This can be non-deterministic since it can be changed by | |
6044 | things like jit-lock by mere temporary selection of some random | |
6045 | window that happens to show this buffer. | |
6046 | So if possible we want this arbitrary choice of "which point" to | |
6047 | be the one from the to-be-selected-window so as to prevent this | |
6048 | window's cursor from being copied from another window. */ | |
e74aeda8 | 6049 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer) |
203eb0aa SM |
6050 | /* If current_window = selected_window, its point is in BUF_PT. */ |
6051 | && !EQ (selected_window, data->current_window)) | |
4c1acb95 | 6052 | old_point = marker_position (XWINDOW (data->current_window)->pointm); |
203eb0aa SM |
6053 | else |
6054 | old_point = BUF_PT (XBUFFER (new_current_buffer)); | |
73cadfc1 | 6055 | } |
7ab12479 | 6056 | |
d3d50620 | 6057 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
fd482be5 | 6058 | f = XFRAME (frame); |
177c0ea7 | 6059 | |
fd482be5 JB |
6060 | /* If f is a dead frame, don't bother rebuilding its window tree. |
6061 | However, there is other stuff we should still try to do below. */ | |
6062 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 6063 | { |
6198ccd0 MR |
6064 | Lisp_Object window; |
6065 | Lisp_Object dead_windows = Qnil; | |
6a6ee00d | 6066 | register Lisp_Object tem, par, pers; |
fd482be5 JB |
6067 | register struct window *w; |
6068 | register struct saved_window *p; | |
5500c422 GM |
6069 | struct window *root_window; |
6070 | struct window **leaf_windows; | |
6071 | int n_leaf_windows; | |
71f02bc5 PE |
6072 | ptrdiff_t k; |
6073 | int i, n; | |
fd482be5 JB |
6074 | |
6075 | /* If the frame has been resized since this window configuration was | |
6076 | made, we change the frame to the size specified in the | |
6077 | configuration, restore the configuration, and then resize it | |
6078 | back. We keep track of the prevailing height in these variables. */ | |
880e6158 MR |
6079 | int previous_frame_text_height = FRAME_TEXT_HEIGHT (f); |
6080 | int previous_frame_text_width = FRAME_TEXT_WIDTH (f); | |
6081 | int previous_frame_menu_bar_height = FRAME_MENU_BAR_HEIGHT (f); | |
6082 | int previous_frame_tool_bar_height = FRAME_TOOL_BAR_HEIGHT (f); | |
949cf20f KS |
6083 | int previous_frame_lines = FRAME_LINES (f); |
6084 | int previous_frame_cols = FRAME_COLS (f); | |
8f6ea2e9 | 6085 | int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); |
9ea173e8 | 6086 | int previous_frame_tool_bar_lines = FRAME_TOOL_BAR_LINES (f); |
fd482be5 | 6087 | |
37b9743e MR |
6088 | /* Don't do this within the main loop below: This may call Lisp |
6089 | code and is thus potentially unsafe while input is blocked. */ | |
6090 | for (k = 0; k < saved_windows->header.size; k++) | |
6091 | { | |
6092 | p = SAVED_WINDOW_N (saved_windows, k); | |
6093 | window = p->window; | |
6094 | w = XWINDOW (window); | |
e74aeda8 DA |
6095 | if (BUFFERP (w->contents) |
6096 | && !EQ (w->contents, p->buffer) | |
e578f381 | 6097 | && BUFFER_LIVE_P (XBUFFER (p->buffer))) |
37b9743e MR |
6098 | /* If a window we restore gets another buffer, record the |
6099 | window's old buffer. */ | |
6100 | call1 (Qrecord_window_buffer, window); | |
6101 | } | |
6102 | ||
d2b35234 RS |
6103 | /* The mouse highlighting code could get screwed up |
6104 | if it runs during this. */ | |
4d7e6e51 | 6105 | block_input (); |
d2b35234 | 6106 | |
880e6158 MR |
6107 | if (data->frame_text_width != previous_frame_text_width |
6108 | || data->frame_text_height != previous_frame_text_height) | |
6109 | change_frame_size (f, data->frame_text_width, | |
6110 | data->frame_text_height, 0, 0, 0, 1); | |
6111 | ||
6112 | if (data->frame_menu_bar_lines != previous_frame_menu_bar_lines) | |
b5e9cbb6 | 6113 | { |
6509f772 | 6114 | #ifdef HAVE_WINDOW_SYSTEM |
b5e9cbb6 EZ |
6115 | if (FRAME_WINDOW_P (f)) |
6116 | x_set_menu_bar_lines (f, make_number (data->frame_menu_bar_lines), | |
6117 | make_number (0)); | |
6118 | else /* TTY or MSDOS */ | |
6509f772 | 6119 | #endif |
b5e9cbb6 EZ |
6120 | set_menu_bar_lines (f, make_number (data->frame_menu_bar_lines), |
6121 | make_number (0)); | |
6122 | } | |
4314246f | 6123 | #ifdef HAVE_WINDOW_SYSTEM |
880e6158 | 6124 | if (data->frame_tool_bar_lines != previous_frame_tool_bar_lines) |
b05b4e27 SM |
6125 | x_set_tool_bar_lines (f, make_number (data->frame_tool_bar_lines), |
6126 | make_number (0)); | |
217f2871 | 6127 | #endif |
fd482be5 | 6128 | |
a46c0153 RS |
6129 | /* "Swap out" point from the selected window's buffer |
6130 | into the window itself. (Normally the pointm of the selected | |
6131 | window holds garbage.) We do this now, before | |
719eaeb1 GM |
6132 | restoring the window contents, and prevent it from |
6133 | being done later on when we select a new window. */ | |
e74aeda8 | 6134 | if (! NILP (XWINDOW (selected_window)->contents)) |
596ae0cf RS |
6135 | { |
6136 | w = XWINDOW (selected_window); | |
d3d50620 | 6137 | set_marker_both (w->pointm, |
e74aeda8 DA |
6138 | w->contents, |
6139 | BUF_PT (XBUFFER (w->contents)), | |
6140 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
596ae0cf RS |
6141 | } |
6142 | ||
94ae2ad4 | 6143 | windows_or_buffers_changed = 39; |
29aeee73 | 6144 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
fd482be5 | 6145 | |
5500c422 | 6146 | /* Problem: Freeing all matrices and later allocating them again |
177c0ea7 | 6147 | is a serious redisplay flickering problem. What we would |
5500c422 | 6148 | really like to do is to free only those matrices not reused |
9d14503e | 6149 | below. */ |
5500c422 | 6150 | root_window = XWINDOW (FRAME_ROOT_WINDOW (f)); |
38182d90 PE |
6151 | leaf_windows = alloca (count_windows (root_window) |
6152 | * sizeof *leaf_windows); | |
5500c422 GM |
6153 | n_leaf_windows = get_leaf_windows (root_window, leaf_windows, 0); |
6154 | ||
fd482be5 JB |
6155 | /* Kludge Alert! |
6156 | Mark all windows now on frame as "deleted". | |
6157 | Restoring the new configuration "undeletes" any that are in it. | |
37962e60 | 6158 | |
fd482be5 JB |
6159 | Save their current buffers in their height fields, since we may |
6160 | need it later, if a buffer saved in the configuration is now | |
6161 | dead. */ | |
be7f5545 | 6162 | delete_all_child_windows (FRAME_ROOT_WINDOW (f)); |
fd482be5 | 6163 | |
eab3844f | 6164 | for (k = 0; k < saved_windows->header.size; k++) |
fd482be5 JB |
6165 | { |
6166 | p = SAVED_WINDOW_N (saved_windows, k); | |
6198ccd0 MR |
6167 | window = p->window; |
6168 | w = XWINDOW (window); | |
e8c17b81 | 6169 | wset_next (w, Qnil); |
7ab12479 | 6170 | |
fd482be5 | 6171 | if (!NILP (p->parent)) |
e8c17b81 PE |
6172 | wset_parent |
6173 | (w, SAVED_WINDOW_N (saved_windows, XFASTINT (p->parent))->window); | |
fd482be5 | 6174 | else |
e8c17b81 | 6175 | wset_parent (w, Qnil); |
7ab12479 | 6176 | |
fd482be5 | 6177 | if (!NILP (p->prev)) |
7ab12479 | 6178 | { |
e8c17b81 PE |
6179 | wset_prev |
6180 | (w, SAVED_WINDOW_N (saved_windows, XFASTINT (p->prev))->window); | |
6181 | wset_next (XWINDOW (w->prev), p->window); | |
fd482be5 JB |
6182 | } |
6183 | else | |
6184 | { | |
e8c17b81 | 6185 | wset_prev (w, Qnil); |
d3d50620 | 6186 | if (!NILP (w->parent)) |
e74aeda8 DA |
6187 | wset_combination (XWINDOW (w->parent), |
6188 | (XINT (p->total_cols) | |
6189 | != XWINDOW (w->parent)->total_cols), | |
6190 | p->window); | |
fd482be5 JB |
6191 | } |
6192 | ||
095d384d DA |
6193 | /* If we squirreled away the buffer, restore it now. */ |
6194 | if (BUFFERP (w->combination_limit)) | |
6195 | wset_buffer (w, w->combination_limit); | |
880e6158 MR |
6196 | w->pixel_left = XFASTINT (p->pixel_left); |
6197 | w->pixel_top = XFASTINT (p->pixel_top); | |
6198 | w->pixel_width = XFASTINT (p->pixel_width); | |
6199 | w->pixel_height = XFASTINT (p->pixel_height); | |
5f24fa51 DA |
6200 | w->left_col = XFASTINT (p->left_col); |
6201 | w->top_line = XFASTINT (p->top_line); | |
6202 | w->total_cols = XFASTINT (p->total_cols); | |
6203 | w->total_lines = XFASTINT (p->total_lines); | |
e8c17b81 PE |
6204 | wset_normal_cols (w, p->normal_cols); |
6205 | wset_normal_lines (w, p->normal_lines); | |
80b00b08 DA |
6206 | w->hscroll = XFASTINT (p->hscroll); |
6207 | w->min_hscroll = XFASTINT (p->min_hscroll); | |
e8c17b81 | 6208 | wset_display_table (w, p->display_table); |
eeaf9bf3 DA |
6209 | w->left_margin_cols = XINT (p->left_margin_cols); |
6210 | w->right_margin_cols = XINT (p->right_margin_cols); | |
9e37ee3b DA |
6211 | w->left_fringe_width = XINT (p->left_fringe_width); |
6212 | w->right_fringe_width = XINT (p->right_fringe_width); | |
2af3565e | 6213 | w->fringes_outside_margins = !NILP (p->fringes_outside_margins); |
38a2c910 | 6214 | w->scroll_bar_width = XINT (p->scroll_bar_width); |
e8c17b81 PE |
6215 | wset_vertical_scroll_bar_type (w, p->vertical_scroll_bar_type); |
6216 | wset_dedicated (w, p->dedicated); | |
6217 | wset_combination_limit (w, p->combination_limit); | |
6a6ee00d MR |
6218 | /* Restore any window parameters that have been saved. |
6219 | Parameters that have not been saved are left alone. */ | |
6220 | for (tem = p->window_parameters; CONSP (tem); tem = XCDR (tem)) | |
6221 | { | |
6222 | pers = XCAR (tem); | |
6223 | if (CONSP (pers)) | |
6224 | { | |
6225 | if (NILP (XCDR (pers))) | |
6226 | { | |
d3d50620 | 6227 | par = Fassq (XCAR (pers), w->window_parameters); |
6a6ee00d MR |
6228 | if (CONSP (par) && !NILP (XCDR (par))) |
6229 | /* Reset a parameter to nil if and only if it | |
6230 | has a non-nil association. Don't make new | |
6231 | associations. */ | |
6232 | Fsetcdr (par, Qnil); | |
6233 | } | |
6234 | else | |
6235 | /* Always restore a non-nil value. */ | |
6236 | Fset_window_parameter (window, XCAR (pers), XCDR (pers)); | |
6237 | } | |
6238 | } | |
6239 | ||
e74aeda8 | 6240 | if (BUFFERP (p->buffer) && BUFFER_LIVE_P (XBUFFER (p->buffer))) |
6198ccd0 MR |
6241 | /* If saved buffer is alive, install it. */ |
6242 | { | |
e8c17b81 PE |
6243 | wset_buffer (w, p->buffer); |
6244 | w->start_at_line_beg = !NILP (p->start_at_line_beg); | |
e74aeda8 | 6245 | set_marker_restricted (w->start, p->start, w->contents); |
e8c17b81 | 6246 | set_marker_restricted (w->pointm, p->pointm, |
e74aeda8 DA |
6247 | w->contents); |
6248 | Fset_marker (BVAR (XBUFFER (w->contents), mark), | |
6249 | p->mark, w->contents); | |
e8c17b81 PE |
6250 | |
6251 | /* As documented in Fcurrent_window_configuration, don't | |
6252 | restore the location of point in the buffer which was | |
6253 | current when the window configuration was recorded. */ | |
6254 | if (!EQ (p->buffer, new_current_buffer) | |
6255 | && XBUFFER (p->buffer) == current_buffer) | |
6256 | Fgoto_char (w->pointm); | |
077288cf | 6257 | } |
e74aeda8 DA |
6258 | else if (BUFFERP (w->contents) && BUFFER_LIVE_P (XBUFFER (w->contents))) |
6259 | /* Keep window's old buffer; make sure the markers are real. */ | |
6260 | { | |
6261 | /* Set window markers at start of visible range. */ | |
6262 | if (XMARKER (w->start)->buffer == 0) | |
6263 | set_marker_restricted_both (w->start, w->contents, 0, 0); | |
6264 | if (XMARKER (w->pointm)->buffer == 0) | |
6265 | set_marker_restricted_both | |
6266 | (w->pointm, w->contents, | |
6267 | BUF_PT (XBUFFER (w->contents)), | |
6268 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
6269 | w->start_at_line_beg = 1; | |
6270 | } | |
6271 | else if (!NILP (w->start)) | |
6272 | /* Leaf window has no live buffer, get one. */ | |
fd482be5 | 6273 | { |
6198ccd0 MR |
6274 | /* Get the buffer via other_buffer_safely in order to |
6275 | avoid showing an unimportant buffer and, if necessary, to | |
6276 | recreate *scratch* in the course (part of Juanma's bs-show | |
6277 | scenario from March 2011). */ | |
e8c17b81 | 6278 | wset_buffer (w, other_buffer_safely (Fcurrent_buffer ())); |
6198ccd0 MR |
6279 | /* This will set the markers to beginning of visible |
6280 | range. */ | |
e74aeda8 DA |
6281 | set_marker_restricted_both (w->start, w->contents, 0, 0); |
6282 | set_marker_restricted_both (w->pointm, w->contents, 0, 0); | |
c98ff5dd | 6283 | w->start_at_line_beg = 1; |
d3d50620 | 6284 | if (!NILP (w->dedicated)) |
6198ccd0 MR |
6285 | /* Record this window as dead. */ |
6286 | dead_windows = Fcons (window, dead_windows); | |
6287 | /* Make sure window is no more dedicated. */ | |
e8c17b81 | 6288 | wset_dedicated (w, Qnil); |
7ab12479 JB |
6289 | } |
6290 | } | |
9ace597f | 6291 | |
f00af5b1 | 6292 | fset_root_window (f, data->root_window); |
a46c0153 RS |
6293 | /* Arrange *not* to restore point in the buffer that was |
6294 | current when the window configuration was saved. */ | |
e74aeda8 | 6295 | if (EQ (XWINDOW (data->current_window)->contents, new_current_buffer)) |
d3d50620 | 6296 | set_marker_restricted (XWINDOW (data->current_window)->pointm, |
18787f5e | 6297 | make_number (old_point), |
e74aeda8 | 6298 | XWINDOW (data->current_window)->contents); |
177c0ea7 | 6299 | |
db269683 | 6300 | if (NILP (data->focus_frame) |
017b2bad | 6301 | || (FRAMEP (data->focus_frame) |
db269683 JB |
6302 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) |
6303 | Fredirect_frame_focus (frame, data->focus_frame); | |
7ab12479 | 6304 | |
880e6158 MR |
6305 | /* Set the frame size to the value it had before this function. */ |
6306 | if (previous_frame_text_width != FRAME_TEXT_WIDTH (f) | |
6307 | || previous_frame_text_height != FRAME_TEXT_HEIGHT (f)) | |
6308 | change_frame_size (f, previous_frame_text_width, | |
6309 | previous_frame_text_height, 0, 0, 0, 1); | |
6310 | ||
8f6ea2e9 | 6311 | if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f)) |
b5e9cbb6 | 6312 | { |
6509f772 | 6313 | #ifdef HAVE_WINDOW_SYSTEM |
b5e9cbb6 EZ |
6314 | if (FRAME_WINDOW_P (f)) |
6315 | x_set_menu_bar_lines (f, | |
6316 | make_number (previous_frame_menu_bar_lines), | |
6317 | make_number (0)); | |
6318 | else /* TTY or MSDOS */ | |
6509f772 | 6319 | #endif |
b5e9cbb6 EZ |
6320 | set_menu_bar_lines (f, make_number (previous_frame_menu_bar_lines), |
6321 | make_number (0)); | |
6322 | } | |
4314246f | 6323 | #ifdef HAVE_WINDOW_SYSTEM |
9ea173e8 GM |
6324 | if (previous_frame_tool_bar_lines != FRAME_TOOL_BAR_LINES (f)) |
6325 | x_set_tool_bar_lines (f, make_number (previous_frame_tool_bar_lines), | |
6326 | make_number (0)); | |
217f2871 | 6327 | #endif |
d2b35234 | 6328 | |
5500c422 | 6329 | /* Now, free glyph matrices in windows that were not reused. */ |
c4280705 GM |
6330 | for (i = n = 0; i < n_leaf_windows; ++i) |
6331 | { | |
e74aeda8 DA |
6332 | if (NILP (leaf_windows[i]->contents)) |
6333 | free_window_matrices (leaf_windows[i]); | |
6334 | else if (EQ (leaf_windows[i]->contents, new_current_buffer)) | |
c4280705 GM |
6335 | ++n; |
6336 | } | |
177c0ea7 | 6337 | |
bd0443bb | 6338 | adjust_frame_glyphs (f); |
4d7e6e51 | 6339 | unblock_input (); |
756b6edc | 6340 | |
6198ccd0 MR |
6341 | /* Scan dead buffer windows. */ |
6342 | for (; CONSP (dead_windows); dead_windows = XCDR (dead_windows)) | |
6343 | { | |
6344 | window = XCAR (dead_windows); | |
6345 | if (WINDOW_LIVE_P (window) && !EQ (window, FRAME_ROOT_WINDOW (f))) | |
6346 | delete_deletable_window (window); | |
6347 | } | |
6348 | ||
ef869611 SM |
6349 | /* In the following call to `select-window', prevent "swapping out |
6350 | point" in the old selected window using the buffer that has | |
6351 | been restored into it. We already swapped out that point from | |
6352 | that window's old buffer. */ | |
6353 | /* This `select_window' calls record_buffer which calls Fdelq which | |
6354 | invokes QUIT, so we do it here at the end rather than earlier, | |
6355 | to minimize the risk of interrupting the Fset_window_configuration | |
7cdf484b | 6356 | in an inconsistent state (e.g. before frame-focus redirection is |
ef869611 SM |
6357 | canceled). */ |
6358 | select_window (data->current_window, Qnil, 1); | |
6359 | BVAR (XBUFFER (XWINDOW (selected_window)->contents), | |
6360 | last_selected_window) | |
6361 | = selected_window; | |
6362 | ||
478292ed RS |
6363 | /* Fselect_window will have made f the selected frame, so we |
6364 | reselect the proper frame here. Fhandle_switch_frame will change the | |
6365 | selected window too, but that doesn't make the call to | |
6366 | Fselect_window above totally superfluous; it still sets f's | |
6367 | selected window. */ | |
6368 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) | |
c6932ecd | 6369 | do_switch_frame (data->selected_frame, 0, 0, Qnil); |
478292ed | 6370 | |
eeca6f6f | 6371 | run_window_configuration_change_hook (f); |
478292ed | 6372 | } |
bdc727bf JB |
6373 | |
6374 | if (!NILP (new_current_buffer)) | |
c4b6914d MR |
6375 | { |
6376 | Fset_buffer (new_current_buffer); | |
6377 | /* If the new current buffer doesn't appear in the selected | |
6378 | window, go to its old point (see bug#12208). */ | |
e74aeda8 | 6379 | if (!EQ (XWINDOW (data->current_window)->contents, new_current_buffer)) |
c4b6914d MR |
6380 | Fgoto_char (make_number (old_point)); |
6381 | } | |
bdc727bf | 6382 | |
478292ed | 6383 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
3dbab091 | 6384 | minibuf_selected_window = data->minibuf_selected_window; |
543f5fb1 | 6385 | |
3f8ab7bd | 6386 | return (FRAME_LIVE_P (f) ? Qt : Qnil); |
7ab12479 JB |
6387 | } |
6388 | ||
27e498e6 PE |
6389 | void |
6390 | restore_window_configuration (Lisp_Object configuration) | |
6391 | { | |
6392 | Fset_window_configuration (configuration); | |
6393 | } | |
6394 | ||
562dd5e9 | 6395 | |
e74aeda8 DA |
6396 | /* If WINDOW is an internal window, recursively delete all child windows |
6397 | reachable via the next and contents slots of WINDOW. Otherwise setup | |
6398 | WINDOW to not show any buffer. */ | |
6399 | ||
fd482be5 | 6400 | void |
be7f5545 | 6401 | delete_all_child_windows (Lisp_Object window) |
7ab12479 | 6402 | { |
fa8a67e6 MR |
6403 | register struct window *w; |
6404 | ||
6405 | w = XWINDOW (window); | |
6406 | ||
d3d50620 | 6407 | if (!NILP (w->next)) |
fa8a67e6 | 6408 | /* Delete WINDOW's siblings (we traverse postorderly). */ |
d3d50620 | 6409 | delete_all_child_windows (w->next); |
605be8af | 6410 | |
e74aeda8 | 6411 | if (WINDOWP (w->contents)) |
fa8a67e6 | 6412 | { |
e74aeda8 DA |
6413 | delete_all_child_windows (w->contents); |
6414 | wset_combination (w, 0, Qnil); | |
fa8a67e6 | 6415 | } |
e74aeda8 | 6416 | else if (BUFFERP (w->contents)) |
fa8a67e6 MR |
6417 | { |
6418 | unshow_buffer (w); | |
d3d50620 DA |
6419 | unchain_marker (XMARKER (w->pointm)); |
6420 | unchain_marker (XMARKER (w->start)); | |
095d384d DA |
6421 | /* Since combination limit makes sense for an internal windows |
6422 | only, we use this slot to save the buffer for the sake of | |
6423 | possible resurrection in Fset_window_configuration. */ | |
e74aeda8 | 6424 | wset_combination_limit (w, w->contents); |
e8c17b81 | 6425 | wset_buffer (w, Qnil); |
fa8a67e6 | 6426 | } |
acf70840 GM |
6427 | |
6428 | Vwindow_list = Qnil; | |
7ab12479 JB |
6429 | } |
6430 | \f | |
6431 | static int | |
971de7fb | 6432 | count_windows (register struct window *window) |
7ab12479 JB |
6433 | { |
6434 | register int count = 1; | |
d3d50620 DA |
6435 | if (!NILP (window->next)) |
6436 | count += count_windows (XWINDOW (window->next)); | |
e74aeda8 DA |
6437 | if (WINDOWP (window->contents)) |
6438 | count += count_windows (XWINDOW (window->contents)); | |
7ab12479 JB |
6439 | return count; |
6440 | } | |
6441 | ||
5500c422 | 6442 | |
177c0ea7 | 6443 | /* Fill vector FLAT with leaf windows under W, starting at index I. |
5500c422 | 6444 | Value is last index + 1. */ |
5500c422 | 6445 | static int |
971de7fb | 6446 | get_leaf_windows (struct window *w, struct window **flat, int i) |
5500c422 GM |
6447 | { |
6448 | while (w) | |
6449 | { | |
e74aeda8 DA |
6450 | if (WINDOWP (w->contents)) |
6451 | i = get_leaf_windows (XWINDOW (w->contents), flat, i); | |
177c0ea7 | 6452 | else |
5500c422 GM |
6453 | flat[i++] = w; |
6454 | ||
d3d50620 | 6455 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
5500c422 GM |
6456 | } |
6457 | ||
6458 | return i; | |
6459 | } | |
6460 | ||
6461 | ||
6462 | /* Return a pointer to the glyph W's physical cursor is on. Value is | |
c80e3b4a | 6463 | null if W's current matrix is invalid, so that no meaningful glyph |
5500c422 | 6464 | can be returned. */ |
5500c422 | 6465 | struct glyph * |
971de7fb | 6466 | get_phys_cursor_glyph (struct window *w) |
5500c422 GM |
6467 | { |
6468 | struct glyph_row *row; | |
6469 | struct glyph *glyph; | |
f8fe6f96 | 6470 | int hpos = w->phys_cursor.hpos; |
5500c422 | 6471 | |
f8fe6f96 EZ |
6472 | if (!(w->phys_cursor.vpos >= 0 |
6473 | && w->phys_cursor.vpos < w->current_matrix->nrows)) | |
6474 | return NULL; | |
6475 | ||
6476 | row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos); | |
6477 | if (!row->enabled_p) | |
6478 | return NULL; | |
6479 | ||
80b00b08 | 6480 | if (w->hscroll) |
f8fe6f96 EZ |
6481 | { |
6482 | /* When the window is hscrolled, cursor hpos can legitimately be | |
6483 | out of bounds, but we draw the cursor at the corresponding | |
6484 | window margin in that case. */ | |
6485 | if (!row->reversed_p && hpos < 0) | |
6486 | hpos = 0; | |
6487 | if (row->reversed_p && hpos >= row->used[TEXT_AREA]) | |
6488 | hpos = row->used[TEXT_AREA] - 1; | |
6489 | } | |
5500c422 | 6490 | |
7216e43b | 6491 | if (0 <= hpos && hpos < row->used[TEXT_AREA]) |
f8fe6f96 | 6492 | glyph = row->glyphs[TEXT_AREA] + hpos; |
5500c422 GM |
6493 | else |
6494 | glyph = NULL; | |
6495 | ||
6496 | return glyph; | |
6497 | } | |
6498 | ||
6499 | ||
7ab12479 | 6500 | static int |
971de7fb | 6501 | save_window_save (Lisp_Object window, struct Lisp_Vector *vector, int i) |
7ab12479 JB |
6502 | { |
6503 | register struct saved_window *p; | |
6504 | register struct window *w; | |
6a6ee00d | 6505 | register Lisp_Object tem, pers, par; |
7ab12479 | 6506 | |
e74aeda8 | 6507 | for (; !NILP (window); window = w->next) |
7ab12479 JB |
6508 | { |
6509 | p = SAVED_WINDOW_N (vector, i); | |
6510 | w = XWINDOW (window); | |
6511 | ||
e8c17b81 | 6512 | wset_temslot (w, make_number (i)); i++; |
7ab12479 | 6513 | p->window = window; |
e74aeda8 | 6514 | p->buffer = (WINDOW_LEAF_P (w) ? w->contents : Qnil); |
880e6158 MR |
6515 | p->pixel_left = make_number (w->pixel_left); |
6516 | p->pixel_top = make_number (w->pixel_top); | |
6517 | p->pixel_width = make_number (w->pixel_width); | |
6518 | p->pixel_height = make_number (w->pixel_height); | |
5f24fa51 DA |
6519 | p->left_col = make_number (w->left_col); |
6520 | p->top_line = make_number (w->top_line); | |
6521 | p->total_cols = make_number (w->total_cols); | |
6522 | p->total_lines = make_number (w->total_lines); | |
d3d50620 DA |
6523 | p->normal_cols = w->normal_cols; |
6524 | p->normal_lines = w->normal_lines; | |
80b00b08 DA |
6525 | XSETFASTINT (p->hscroll, w->hscroll); |
6526 | XSETFASTINT (p->min_hscroll, w->min_hscroll); | |
d3d50620 | 6527 | p->display_table = w->display_table; |
eeaf9bf3 DA |
6528 | p->left_margin_cols = make_number (w->left_margin_cols); |
6529 | p->right_margin_cols = make_number (w->right_margin_cols); | |
9e37ee3b DA |
6530 | p->left_fringe_width = make_number (w->left_fringe_width); |
6531 | p->right_fringe_width = make_number (w->right_fringe_width); | |
2af3565e | 6532 | p->fringes_outside_margins = w->fringes_outside_margins ? Qt : Qnil; |
38a2c910 | 6533 | p->scroll_bar_width = make_number (w->scroll_bar_width); |
d3d50620 DA |
6534 | p->vertical_scroll_bar_type = w->vertical_scroll_bar_type; |
6535 | p->dedicated = w->dedicated; | |
6536 | p->combination_limit = w->combination_limit; | |
6a6ee00d MR |
6537 | p->window_parameters = Qnil; |
6538 | ||
6539 | if (!NILP (Vwindow_persistent_parameters)) | |
6540 | { | |
6541 | /* Run cycle detection on Vwindow_persistent_parameters. */ | |
6542 | Lisp_Object tortoise, hare; | |
6543 | ||
6544 | hare = tortoise = Vwindow_persistent_parameters; | |
6545 | while (CONSP (hare)) | |
6546 | { | |
6547 | hare = XCDR (hare); | |
6548 | if (!CONSP (hare)) | |
6549 | break; | |
6550 | ||
6551 | hare = XCDR (hare); | |
6552 | tortoise = XCDR (tortoise); | |
6553 | ||
6554 | if (EQ (hare, tortoise)) | |
6555 | /* Reset Vwindow_persistent_parameters to Qnil. */ | |
6556 | { | |
6557 | Vwindow_persistent_parameters = Qnil; | |
6558 | break; | |
6559 | } | |
6560 | } | |
6561 | ||
6562 | for (tem = Vwindow_persistent_parameters; CONSP (tem); | |
6563 | tem = XCDR (tem)) | |
6564 | { | |
6565 | pers = XCAR (tem); | |
34a02f46 MR |
6566 | /* Save values for persistent window parameters. */ |
6567 | if (CONSP (pers) && !NILP (XCDR (pers))) | |
6a6ee00d | 6568 | { |
d3d50620 | 6569 | par = Fassq (XCAR (pers), w->window_parameters); |
6a6ee00d MR |
6570 | if (NILP (par)) |
6571 | /* If the window has no value for the parameter, | |
6572 | make one. */ | |
6573 | p->window_parameters = Fcons (Fcons (XCAR (pers), Qnil), | |
6574 | p->window_parameters); | |
6575 | else | |
6576 | /* If the window has a value for the parameter, | |
6577 | save it. */ | |
6578 | p->window_parameters = Fcons (Fcons (XCAR (par), | |
6579 | XCDR (par)), | |
6580 | p->window_parameters); | |
6581 | } | |
6582 | } | |
6583 | } | |
6584 | ||
e74aeda8 | 6585 | if (BUFFERP (w->contents)) |
7ab12479 | 6586 | { |
6a6ee00d MR |
6587 | /* Save w's value of point in the window configuration. If w |
6588 | is the selected window, then get the value of point from | |
6589 | the buffer; pointm is garbage in the selected window. */ | |
7ab12479 | 6590 | if (EQ (window, selected_window)) |
e74aeda8 DA |
6591 | p->pointm = build_marker (XBUFFER (w->contents), |
6592 | BUF_PT (XBUFFER (w->contents)), | |
6593 | BUF_PT_BYTE (XBUFFER (w->contents))); | |
7ab12479 | 6594 | else |
d3d50620 | 6595 | p->pointm = Fcopy_marker (w->pointm, Qnil); |
de8c03dc SM |
6596 | XMARKER (p->pointm)->insertion_type |
6597 | = !NILP (Vwindow_point_insertion_type); | |
7ab12479 | 6598 | |
d3d50620 | 6599 | p->start = Fcopy_marker (w->start, Qnil); |
c98ff5dd | 6600 | p->start_at_line_beg = w->start_at_line_beg ? Qt : Qnil; |
7ab12479 | 6601 | |
e74aeda8 | 6602 | tem = BVAR (XBUFFER (w->contents), mark); |
eeb82665 | 6603 | p->mark = Fcopy_marker (tem, Qnil); |
7ab12479 JB |
6604 | } |
6605 | else | |
6606 | { | |
6607 | p->pointm = Qnil; | |
6608 | p->start = Qnil; | |
6609 | p->mark = Qnil; | |
6610 | p->start_at_line_beg = Qnil; | |
6611 | } | |
6612 | ||
d3d50620 | 6613 | if (NILP (w->parent)) |
7ab12479 JB |
6614 | p->parent = Qnil; |
6615 | else | |
d3d50620 | 6616 | p->parent = XWINDOW (w->parent)->temslot; |
7ab12479 | 6617 | |
d3d50620 | 6618 | if (NILP (w->prev)) |
7ab12479 JB |
6619 | p->prev = Qnil; |
6620 | else | |
d3d50620 | 6621 | p->prev = XWINDOW (w->prev)->temslot; |
7ab12479 | 6622 | |
e74aeda8 DA |
6623 | if (WINDOWP (w->contents)) |
6624 | i = save_window_save (w->contents, vector, i); | |
7ab12479 JB |
6625 | } |
6626 | ||
6627 | return i; | |
6628 | } | |
6629 | ||
a7ca3326 | 6630 | DEFUN ("current-window-configuration", Fcurrent_window_configuration, |
fdb82f93 PJ |
6631 | Scurrent_window_configuration, 0, 1, 0, |
6632 | doc: /* Return an object representing the current window configuration of FRAME. | |
6633 | If FRAME is nil or omitted, use the selected frame. | |
6634 | This describes the number of windows, their sizes and current buffers, | |
6635 | and for each displayed buffer, where display starts, and the positions of | |
6636 | point and mark. An exception is made for point in the current buffer: | |
6637 | its value is -not- saved. | |
6638 | This also records the currently selected frame, and FRAME's focus | |
34a02f46 MR |
6639 | redirection (see `redirect-frame-focus'). The variable |
6640 | `window-persistent-parameters' specifies which window parameters are | |
6641 | saved by this function. */) | |
5842a27b | 6642 | (Lisp_Object frame) |
7ab12479 JB |
6643 | { |
6644 | register Lisp_Object tem; | |
6645 | register int n_windows; | |
6646 | register struct save_window_data *data; | |
6647 | register int i; | |
d9f07150 | 6648 | struct frame *f = decode_live_frame (frame); |
7ab12479 | 6649 | |
44fa5b1e | 6650 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
b05b4e27 SM |
6651 | data = ALLOCATE_PSEUDOVECTOR (struct save_window_data, frame_cols, |
6652 | PVEC_WINDOW_CONFIGURATION); | |
6653 | ||
6654 | data->frame_cols = FRAME_COLS (f); | |
6655 | data->frame_lines = FRAME_LINES (f); | |
6656 | data->frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); | |
6657 | data->frame_tool_bar_lines = FRAME_TOOL_BAR_LINES (f); | |
880e6158 MR |
6658 | data->frame_text_width = FRAME_TEXT_WIDTH (f); |
6659 | data->frame_text_height = FRAME_TEXT_HEIGHT (f); | |
6660 | data->frame_menu_bar_height = FRAME_MENU_BAR_HEIGHT (f); | |
6661 | data->frame_tool_bar_height = FRAME_TOOL_BAR_HEIGHT (f); | |
1ae1a37d | 6662 | data->selected_frame = selected_frame; |
44fa5b1e | 6663 | data->current_window = FRAME_SELECTED_WINDOW (f); |
74112613 | 6664 | XSETBUFFER (data->current_buffer, current_buffer); |
3f49fddc | 6665 | data->minibuf_scroll_window = minibuf_level > 0 ? Vminibuf_scroll_window : Qnil; |
3dbab091 | 6666 | data->minibuf_selected_window = minibuf_level > 0 ? minibuf_selected_window : Qnil; |
44fa5b1e | 6667 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 6668 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
25721f5b | 6669 | tem = make_uninit_vector (n_windows); |
7ab12479 JB |
6670 | data->saved_windows = tem; |
6671 | for (i = 0; i < n_windows; i++) | |
28be1ada | 6672 | ASET (tem, i, |
25721f5b | 6673 | Fmake_vector (make_number (VECSIZE (struct saved_window)), Qnil)); |
a1d58e5b | 6674 | save_window_save (FRAME_ROOT_WINDOW (f), XVECTOR (tem), 0); |
74112613 | 6675 | XSETWINDOW_CONFIGURATION (tem, data); |
7ab12479 JB |
6676 | return (tem); |
6677 | } | |
25554267 DA |
6678 | |
6679 | /* Called after W's margins, fringes or scroll bars was adjusted. */ | |
6680 | ||
6681 | static void | |
6682 | apply_window_adjustment (struct window *w) | |
6683 | { | |
6684 | eassert (w); | |
6685 | adjust_window_margins (w); | |
6686 | clear_glyph_matrix (w->current_matrix); | |
6687 | w->window_end_valid = 0; | |
94ae2ad4 | 6688 | windows_or_buffers_changed = 40; |
bd0443bb | 6689 | adjust_frame_glyphs (XFRAME (WINDOW_FRAME (w))); |
25554267 DA |
6690 | } |
6691 | ||
5500c422 GM |
6692 | \f |
6693 | /*********************************************************************** | |
6694 | Marginal Areas | |
6695 | ***********************************************************************/ | |
6696 | ||
25554267 DA |
6697 | static struct window * |
6698 | set_window_margins (struct window *w, Lisp_Object left_width, | |
6699 | Lisp_Object right_width) | |
5500c422 | 6700 | { |
eeaf9bf3 | 6701 | int left, right; |
5500c422 | 6702 | |
eeaf9bf3 | 6703 | /* FIXME: what about margins that are too wide? */ |
eeaf9bf3 DA |
6704 | left = (NILP (left_width) ? 0 |
6705 | : (CHECK_NATNUM (left_width), XINT (left_width))); | |
6706 | right = (NILP (right_width) ? 0 | |
6707 | : (CHECK_NATNUM (right_width), XINT (right_width))); | |
5500c422 | 6708 | |
eeaf9bf3 | 6709 | if (w->left_margin_cols != left || w->right_margin_cols != right) |
6b61353c | 6710 | { |
eeaf9bf3 DA |
6711 | w->left_margin_cols = left; |
6712 | w->right_margin_cols = right; | |
25554267 DA |
6713 | return w; |
6714 | } | |
6715 | return NULL; | |
6716 | } | |
949cf20f | 6717 | |
25554267 DA |
6718 | DEFUN ("set-window-margins", Fset_window_margins, Sset_window_margins, |
6719 | 2, 3, 0, | |
6720 | doc: /* Set width of marginal areas of window WINDOW. | |
6721 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6722 | |
25554267 DA |
6723 | Second arg LEFT-WIDTH specifies the number of character cells to |
6724 | reserve for the left marginal area. Optional third arg RIGHT-WIDTH | |
6725 | does the same for the right marginal area. A nil width parameter | |
6726 | means no margin. | |
5500c422 | 6727 | |
25554267 DA |
6728 | Return t if any margin was actually changed and nil otherwise. */) |
6729 | (Lisp_Object window, Lisp_Object left_width, Lisp_Object right_width) | |
6730 | { | |
6731 | struct window *w = set_window_margins (decode_live_window (window), | |
6732 | left_width, right_width); | |
6733 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
5500c422 GM |
6734 | } |
6735 | ||
6736 | ||
6737 | DEFUN ("window-margins", Fwindow_margins, Swindow_margins, | |
6738 | 0, 1, 0, | |
fdb82f93 | 6739 | doc: /* Get width of marginal areas of window WINDOW. |
52162052 MR |
6740 | WINDOW must be a live window and defaults to the selected one. |
6741 | ||
fdb82f93 PJ |
6742 | Value is a cons of the form (LEFT-WIDTH . RIGHT-WIDTH). |
6743 | If a marginal area does not exist, its width will be returned | |
6744 | as nil. */) | |
5842a27b | 6745 | (Lisp_Object window) |
5500c422 | 6746 | { |
52162052 | 6747 | struct window *w = decode_live_window (window); |
880e6158 MR |
6748 | return Fcons (w->left_margin_cols |
6749 | ? make_number (w->left_margin_cols) : Qnil, | |
6750 | w->right_margin_cols | |
6751 | ? make_number (w->right_margin_cols) : Qnil); | |
949cf20f KS |
6752 | } |
6753 | ||
6754 | ||
6755 | \f | |
6756 | /*********************************************************************** | |
6757 | Fringes | |
6758 | ***********************************************************************/ | |
6759 | ||
25554267 DA |
6760 | static struct window * |
6761 | set_window_fringes (struct window *w, Lisp_Object left_width, | |
6762 | Lisp_Object right_width, Lisp_Object outside_margins) | |
949cf20f | 6763 | { |
9e37ee3b | 6764 | int left, right, outside = !NILP (outside_margins); |
949cf20f | 6765 | |
9e37ee3b DA |
6766 | left = (NILP (left_width) ? -1 |
6767 | : (CHECK_NATNUM (left_width), XINT (left_width))); | |
6768 | right = (NILP (right_width) ? -1 | |
6769 | : (CHECK_NATNUM (right_width), XINT (right_width))); | |
5a857365 | 6770 | |
9e37ee3b | 6771 | /* Do nothing on a tty or if nothing to actually change. */ |
d46c6df5 | 6772 | if (FRAME_WINDOW_P (WINDOW_XFRAME (w)) |
9e37ee3b DA |
6773 | && (w->left_fringe_width != left |
6774 | || w->right_fringe_width != right | |
2af3565e | 6775 | || w->fringes_outside_margins != outside)) |
949cf20f | 6776 | { |
9e37ee3b DA |
6777 | w->left_fringe_width = left; |
6778 | w->right_fringe_width = right; | |
2af3565e | 6779 | w->fringes_outside_margins = outside; |
25554267 DA |
6780 | return w; |
6781 | } | |
6782 | return NULL; | |
6783 | } | |
949cf20f | 6784 | |
25554267 DA |
6785 | DEFUN ("set-window-fringes", Fset_window_fringes, Sset_window_fringes, |
6786 | 2, 4, 0, | |
6787 | doc: /* Set the fringe widths of window WINDOW. | |
6788 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6789 | |
25554267 DA |
6790 | Second arg LEFT-WIDTH specifies the number of pixels to reserve for |
6791 | the left fringe. Optional third arg RIGHT-WIDTH specifies the right | |
6792 | fringe width. If a fringe width arg is nil, that means to use the | |
6793 | frame's default fringe width. Default fringe widths can be set with | |
6794 | the command `set-fringe-style'. | |
6795 | If optional fourth arg OUTSIDE-MARGINS is non-nil, draw the fringes | |
6796 | outside of the display margins. By default, fringes are drawn between | |
6797 | display marginal areas and the text area. | |
949cf20f | 6798 | |
25554267 DA |
6799 | Return t if any fringe was actually changed and nil otherwise. */) |
6800 | (Lisp_Object window, Lisp_Object left_width, | |
6801 | Lisp_Object right_width, Lisp_Object outside_margins) | |
6802 | { | |
6803 | struct window *w | |
6804 | = set_window_fringes (decode_live_window (window), | |
6805 | left_width, right_width, outside_margins); | |
6806 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
949cf20f KS |
6807 | } |
6808 | ||
6809 | ||
6810 | DEFUN ("window-fringes", Fwindow_fringes, Swindow_fringes, | |
6811 | 0, 1, 0, | |
6812 | doc: /* Get width of fringes of window WINDOW. | |
52162052 MR |
6813 | WINDOW must be a live window and defaults to the selected one. |
6814 | ||
6b61353c | 6815 | Value is a list of the form (LEFT-WIDTH RIGHT-WIDTH OUTSIDE-MARGINS). */) |
5842a27b | 6816 | (Lisp_Object window) |
949cf20f | 6817 | { |
52162052 | 6818 | struct window *w = decode_live_window (window); |
d46c6df5 | 6819 | |
89bc0592 DA |
6820 | return list3 (make_number (WINDOW_LEFT_FRINGE_WIDTH (w)), |
6821 | make_number (WINDOW_RIGHT_FRINGE_WIDTH (w)), | |
6822 | WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w) ? Qt : Qnil); | |
949cf20f KS |
6823 | } |
6824 | ||
6825 | ||
6826 | \f | |
6827 | /*********************************************************************** | |
6828 | Scroll bars | |
6829 | ***********************************************************************/ | |
6830 | ||
25554267 DA |
6831 | static struct window * |
6832 | set_window_scroll_bars (struct window *w, Lisp_Object width, | |
6833 | Lisp_Object vertical_type, Lisp_Object horizontal_type) | |
949cf20f | 6834 | { |
38a2c910 | 6835 | int iwidth = (NILP (width) ? -1 : (CHECK_NATNUM (width), XINT (width))); |
949cf20f | 6836 | |
38a2c910 DA |
6837 | if (iwidth == 0) |
6838 | vertical_type = Qnil; | |
949cf20f | 6839 | |
413a79ad | 6840 | if (!(NILP (vertical_type) |
0cc1039f | 6841 | || EQ (vertical_type, Qleft) |
6b61353c KH |
6842 | || EQ (vertical_type, Qright) |
6843 | || EQ (vertical_type, Qt))) | |
6844 | error ("Invalid type of vertical scroll bar"); | |
6845 | ||
38a2c910 | 6846 | if (w->scroll_bar_width != iwidth |
d3d50620 | 6847 | || !EQ (w->vertical_scroll_bar_type, vertical_type)) |
949cf20f | 6848 | { |
38a2c910 | 6849 | w->scroll_bar_width = iwidth; |
e8c17b81 | 6850 | wset_vertical_scroll_bar_type (w, vertical_type); |
25554267 DA |
6851 | return w; |
6852 | } | |
6853 | return NULL; | |
6854 | } | |
949cf20f | 6855 | |
25554267 DA |
6856 | DEFUN ("set-window-scroll-bars", Fset_window_scroll_bars, |
6857 | Sset_window_scroll_bars, 2, 4, 0, | |
6858 | doc: /* Set width and type of scroll bars of window WINDOW. | |
6859 | WINDOW must be a live window and defaults to the selected one. | |
949cf20f | 6860 | |
880e6158 | 6861 | Second parameter WIDTH specifies the pixel width for the scroll bar. |
25554267 DA |
6862 | Third parameter VERTICAL-TYPE specifies the type of the vertical scroll |
6863 | bar: left, right, or nil. | |
6864 | If WIDTH is nil, use the frame's scroll-bar width. | |
6865 | If VERTICAL-TYPE is t, use the frame's scroll-bar type. | |
6866 | Fourth parameter HORIZONTAL-TYPE is currently unused. | |
949cf20f | 6867 | |
880e6158 | 6868 | Return t if scroll bars were actually changed and nil otherwise. */) |
25554267 DA |
6869 | (Lisp_Object window, Lisp_Object width, |
6870 | Lisp_Object vertical_type, Lisp_Object horizontal_type) | |
6871 | { | |
6872 | struct window *w | |
6873 | = set_window_scroll_bars (decode_live_window (window), | |
6874 | width, vertical_type, horizontal_type); | |
6875 | return w ? (apply_window_adjustment (w), Qt) : Qnil; | |
949cf20f KS |
6876 | } |
6877 | ||
6878 | ||
6879 | DEFUN ("window-scroll-bars", Fwindow_scroll_bars, Swindow_scroll_bars, | |
6880 | 0, 1, 0, | |
6881 | doc: /* Get width and type of scroll bars of window WINDOW. | |
52162052 MR |
6882 | WINDOW must be a live window and defaults to the selected one. |
6883 | ||
6b61353c KH |
6884 | Value is a list of the form (WIDTH COLS VERTICAL-TYPE HORIZONTAL-TYPE). |
6885 | If WIDTH is nil or TYPE is t, the window is using the frame's corresponding | |
6886 | value. */) | |
5842a27b | 6887 | (Lisp_Object window) |
949cf20f | 6888 | { |
52162052 | 6889 | struct window *w = decode_live_window (window); |
89bc0592 DA |
6890 | |
6891 | return list4 (make_number ((WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) | |
949cf20f KS |
6892 | ? WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) |
6893 | : WINDOW_SCROLL_BAR_AREA_WIDTH (w))), | |
89bc0592 DA |
6894 | make_number (WINDOW_SCROLL_BAR_COLS (w)), |
6895 | w->vertical_scroll_bar_type, Qnil); | |
5500c422 GM |
6896 | } |
6897 | ||
6898 | ||
7ab12479 | 6899 | \f |
5500c422 GM |
6900 | /*********************************************************************** |
6901 | Smooth scrolling | |
6902 | ***********************************************************************/ | |
6903 | ||
0cc1039f | 6904 | DEFUN ("window-vscroll", Fwindow_vscroll, Swindow_vscroll, 0, 2, 0, |
fdb82f93 | 6905 | doc: /* Return the amount by which WINDOW is scrolled vertically. |
49745b39 | 6906 | If WINDOW is omitted or nil, it defaults to the selected window. |
0cc1039f | 6907 | Normally, value is a multiple of the canonical character height of WINDOW; |
8cd0d661 | 6908 | optional second arg PIXELS-P means value is measured in pixels. */) |
5842a27b | 6909 | (Lisp_Object window, Lisp_Object pixels_p) |
5500c422 | 6910 | { |
47004952 | 6911 | Lisp_Object result; |
1f76f6f5 MR |
6912 | struct window *w = decode_live_window (window); |
6913 | struct frame *f = XFRAME (w->frame); | |
177c0ea7 | 6914 | |
5500c422 | 6915 | if (FRAME_WINDOW_P (f)) |
0cc1039f KS |
6916 | result = (NILP (pixels_p) |
6917 | ? FRAME_CANON_Y_FROM_PIXEL_Y (f, -w->vscroll) | |
6918 | : make_number (-w->vscroll)); | |
5500c422 | 6919 | else |
47004952 GM |
6920 | result = make_number (0); |
6921 | return result; | |
5500c422 GM |
6922 | } |
6923 | ||
6924 | ||
6925 | DEFUN ("set-window-vscroll", Fset_window_vscroll, Sset_window_vscroll, | |
0cc1039f | 6926 | 2, 3, 0, |
fdb82f93 | 6927 | doc: /* Set amount by which WINDOW should be scrolled vertically to VSCROLL. |
0cc1039f KS |
6928 | WINDOW nil means use the selected window. Normally, VSCROLL is a |
6929 | non-negative multiple of the canonical character height of WINDOW; | |
8cd0d661 | 6930 | optional third arg PIXELS-P non-nil means that VSCROLL is in pixels. |
a0a37a6f LT |
6931 | If PIXELS-P is nil, VSCROLL may have to be rounded so that it |
6932 | corresponds to an integral number of pixels. The return value is the | |
6933 | result of this rounding. | |
6934 | If PIXELS-P is non-nil, the return value is VSCROLL. */) | |
5842a27b | 6935 | (Lisp_Object window, Lisp_Object vscroll, Lisp_Object pixels_p) |
5500c422 | 6936 | { |
1f76f6f5 MR |
6937 | struct window *w = decode_live_window (window); |
6938 | struct frame *f = XFRAME (w->frame); | |
177c0ea7 | 6939 | |
b7826503 | 6940 | CHECK_NUMBER_OR_FLOAT (vscroll); |
177c0ea7 | 6941 | |
5500c422 GM |
6942 | if (FRAME_WINDOW_P (f)) |
6943 | { | |
6944 | int old_dy = w->vscroll; | |
177c0ea7 | 6945 | |
0cc1039f KS |
6946 | w->vscroll = - (NILP (pixels_p) |
6947 | ? FRAME_LINE_HEIGHT (f) * XFLOATINT (vscroll) | |
6948 | : XFLOATINT (vscroll)); | |
47004952 | 6949 | w->vscroll = min (w->vscroll, 0); |
5500c422 | 6950 | |
e56263e5 KS |
6951 | if (w->vscroll != old_dy) |
6952 | { | |
6953 | /* Adjust glyph matrix of the frame if the virtual display | |
6954 | area becomes larger than before. */ | |
6955 | if (w->vscroll < 0 && w->vscroll < old_dy) | |
bd0443bb | 6956 | adjust_frame_glyphs (f); |
177c0ea7 | 6957 | |
e56263e5 | 6958 | /* Prevent redisplay shortcuts. */ |
e74aeda8 | 6959 | XBUFFER (w->contents)->prevent_redisplay_optimizations_p = 1; |
e56263e5 | 6960 | } |
5500c422 | 6961 | } |
177c0ea7 | 6962 | |
0cc1039f | 6963 | return Fwindow_vscroll (window, pixels_p); |
5500c422 | 6964 | } |
177c0ea7 | 6965 | |
7bbb5782 GM |
6966 | \f |
6967 | /* Call FN for all leaf windows on frame F. FN is called with the | |
6968 | first argument being a pointer to the leaf window, and with | |
f95464e4 | 6969 | additional argument USER_DATA. Stops when FN returns 0. */ |
7bbb5782 | 6970 | |
2f7c71a1 AS |
6971 | static void |
6972 | foreach_window (struct frame *f, int (*fn) (struct window *, void *), | |
6973 | void *user_data) | |
7bbb5782 | 6974 | { |
56f2de10 | 6975 | /* delete_frame may set FRAME_ROOT_WINDOW (f) to Qnil. */ |
76fb556f YM |
6976 | if (WINDOWP (FRAME_ROOT_WINDOW (f))) |
6977 | foreach_window_1 (XWINDOW (FRAME_ROOT_WINDOW (f)), fn, user_data); | |
7bbb5782 GM |
6978 | } |
6979 | ||
6980 | ||
6981 | /* Helper function for foreach_window. Call FN for all leaf windows | |
6982 | reachable from W. FN is called with the first argument being a | |
f95464e4 | 6983 | pointer to the leaf window, and with additional argument USER_DATA. |
67492200 | 6984 | Stop when FN returns 0. Value is 0 if stopped by FN. */ |
7bbb5782 | 6985 | |
67492200 | 6986 | static int |
971de7fb | 6987 | foreach_window_1 (struct window *w, int (*fn) (struct window *, void *), void *user_data) |
7bbb5782 | 6988 | { |
67492200 | 6989 | int cont; |
177c0ea7 | 6990 | |
67492200 | 6991 | for (cont = 1; w && cont;) |
7bbb5782 | 6992 | { |
e74aeda8 DA |
6993 | if (WINDOWP (w->contents)) |
6994 | cont = foreach_window_1 (XWINDOW (w->contents), fn, user_data); | |
177c0ea7 | 6995 | else |
0f532a9a | 6996 | cont = fn (w, user_data); |
177c0ea7 | 6997 | |
d3d50620 | 6998 | w = NILP (w->next) ? 0 : XWINDOW (w->next); |
7bbb5782 | 6999 | } |
67492200 GM |
7000 | |
7001 | return cont; | |
7bbb5782 GM |
7002 | } |
7003 | ||
5500c422 GM |
7004 | /*********************************************************************** |
7005 | Initialization | |
7006 | ***********************************************************************/ | |
7007 | ||
6198ccd0 MR |
7008 | /* Return 1 if window configurations CONFIGURATION1 and CONFIGURATION2 |
7009 | describe the same state of affairs. This is used by Fequal. | |
7010 | ||
f75d7a91 | 7011 | IGNORE_POSITIONS means ignore non-matching scroll positions |
6198ccd0 MR |
7012 | and the like. |
7013 | ||
e4769531 | 7014 | This ignores a couple of things like the dedication status of |
b6f67890 MR |
7015 | window, combination_limit and the like. This might have to be |
7016 | fixed. */ | |
cbff28e8 | 7017 | |
f75d7a91 PE |
7018 | bool |
7019 | compare_window_configurations (Lisp_Object configuration1, | |
7020 | Lisp_Object configuration2, | |
7021 | bool ignore_positions) | |
cbff28e8 RS |
7022 | { |
7023 | register struct save_window_data *d1, *d2; | |
6198ccd0 | 7024 | struct Lisp_Vector *sws1, *sws2; |
71f02bc5 | 7025 | ptrdiff_t i; |
cbff28e8 | 7026 | |
6198ccd0 MR |
7027 | CHECK_WINDOW_CONFIGURATION (configuration1); |
7028 | CHECK_WINDOW_CONFIGURATION (configuration2); | |
7029 | ||
7030 | d1 = (struct save_window_data *) XVECTOR (configuration1); | |
7031 | d2 = (struct save_window_data *) XVECTOR (configuration2); | |
7032 | sws1 = XVECTOR (d1->saved_windows); | |
7033 | sws2 = XVECTOR (d2->saved_windows); | |
7034 | ||
7035 | /* Frame settings must match. */ | |
7036 | if (d1->frame_cols != d2->frame_cols | |
7037 | || d1->frame_lines != d2->frame_lines | |
7038 | || d1->frame_menu_bar_lines != d2->frame_menu_bar_lines | |
7039 | || !EQ (d1->selected_frame, d2->selected_frame) | |
7040 | || !EQ (d1->current_buffer, d2->current_buffer) | |
7041 | || (!ignore_positions | |
7042 | && (!EQ (d1->minibuf_scroll_window, d2->minibuf_scroll_window) | |
7043 | || !EQ (d1->minibuf_selected_window, d2->minibuf_selected_window))) | |
7044 | || !EQ (d1->focus_frame, d2->focus_frame) | |
7045 | /* Verify that the two configurations have the same number of windows. */ | |
7046 | || sws1->header.size != sws2->header.size) | |
cbff28e8 | 7047 | return 0; |
cbff28e8 | 7048 | |
6198ccd0 | 7049 | for (i = 0; i < sws1->header.size; i++) |
cbff28e8 | 7050 | { |
6198ccd0 | 7051 | struct saved_window *sw1, *sw2; |
cbff28e8 | 7052 | |
6198ccd0 MR |
7053 | sw1 = SAVED_WINDOW_N (sws1, i); |
7054 | sw2 = SAVED_WINDOW_N (sws2, i); | |
7055 | ||
7056 | if ( | |
7057 | /* The "current" windows in the two configurations must | |
7058 | correspond to each other. */ | |
7059 | EQ (d1->current_window, sw1->window) | |
7060 | != EQ (d2->current_window, sw2->window) | |
7061 | /* Windows' buffers must match. */ | |
7062 | || !EQ (sw1->buffer, sw2->buffer) | |
880e6158 MR |
7063 | || !EQ (sw1->pixel_left, sw2->pixel_left) |
7064 | || !EQ (sw1->pixel_top, sw2->pixel_top) | |
7065 | || !EQ (sw1->pixel_height, sw2->pixel_height) | |
7066 | || !EQ (sw1->pixel_width, sw2->pixel_width) | |
6198ccd0 MR |
7067 | || !EQ (sw1->left_col, sw2->left_col) |
7068 | || !EQ (sw1->top_line, sw2->top_line) | |
7069 | || !EQ (sw1->total_cols, sw2->total_cols) | |
7070 | || !EQ (sw1->total_lines, sw2->total_lines) | |
7071 | || !EQ (sw1->display_table, sw2->display_table) | |
7072 | /* The next two disjuncts check the window structure for | |
7073 | equality. */ | |
7074 | || !EQ (sw1->parent, sw2->parent) | |
7075 | || !EQ (sw1->prev, sw2->prev) | |
7076 | || (!ignore_positions | |
7077 | && (!EQ (sw1->hscroll, sw2->hscroll) | |
7078 | || !EQ (sw1->min_hscroll, sw2->min_hscroll) | |
7079 | || !EQ (sw1->start_at_line_beg, sw2->start_at_line_beg) | |
7080 | || NILP (Fequal (sw1->start, sw2->start)) | |
7081 | || NILP (Fequal (sw1->pointm, sw2->pointm)) | |
7082 | || NILP (Fequal (sw1->mark, sw2->mark)))) | |
7083 | || !EQ (sw1->left_margin_cols, sw2->left_margin_cols) | |
7084 | || !EQ (sw1->right_margin_cols, sw2->right_margin_cols) | |
7085 | || !EQ (sw1->left_fringe_width, sw2->left_fringe_width) | |
7086 | || !EQ (sw1->right_fringe_width, sw2->right_fringe_width) | |
7087 | || !EQ (sw1->fringes_outside_margins, sw2->fringes_outside_margins) | |
7088 | || !EQ (sw1->scroll_bar_width, sw2->scroll_bar_width) | |
7089 | || !EQ (sw1->vertical_scroll_bar_type, sw2->vertical_scroll_bar_type)) | |
949cf20f | 7090 | return 0; |
cbff28e8 RS |
7091 | } |
7092 | ||
7093 | return 1; | |
7094 | } | |
2f8274be RS |
7095 | |
7096 | DEFUN ("compare-window-configurations", Fcompare_window_configurations, | |
7097 | Scompare_window_configurations, 2, 2, 0, | |
fdb82f93 PJ |
7098 | doc: /* Compare two window configurations as regards the structure of windows. |
7099 | This function ignores details such as the values of point and mark | |
7100 | and scrolling positions. */) | |
5842a27b | 7101 | (Lisp_Object x, Lisp_Object y) |
2f8274be RS |
7102 | { |
7103 | if (compare_window_configurations (x, y, 1)) | |
7104 | return Qt; | |
7105 | return Qnil; | |
7106 | } | |
cbff28e8 | 7107 | \f |
dfcf069d | 7108 | void |
971de7fb | 7109 | init_window_once (void) |
7ab12479 | 7110 | { |
3224dac1 | 7111 | struct frame *f = make_initial_frame (); |
1ae1a37d GM |
7112 | XSETFRAME (selected_frame, f); |
7113 | Vterminal_frame = selected_frame; | |
e69b0960 DA |
7114 | minibuf_window = f->minibuffer_window; |
7115 | selected_window = f->selected_window; | |
5b03d3c0 RS |
7116 | |
7117 | window_initialized = 1; | |
7ab12479 JB |
7118 | } |
7119 | ||
67492200 | 7120 | void |
971de7fb | 7121 | init_window (void) |
67492200 GM |
7122 | { |
7123 | Vwindow_list = Qnil; | |
7124 | } | |
7125 | ||
dfcf069d | 7126 | void |
971de7fb | 7127 | syms_of_window (void) |
7ab12479 | 7128 | { |
cd3520a4 JB |
7129 | DEFSYM (Qscroll_up, "scroll-up"); |
7130 | DEFSYM (Qscroll_down, "scroll-down"); | |
7131 | DEFSYM (Qscroll_command, "scroll-command"); | |
a4b000fb JL |
7132 | |
7133 | Fput (Qscroll_up, Qscroll_command, Qt); | |
7134 | Fput (Qscroll_down, Qscroll_command, Qt); | |
7135 | ||
cd3520a4 JB |
7136 | DEFSYM (Qwindow_configuration_change_hook, "window-configuration-change-hook"); |
7137 | DEFSYM (Qwindowp, "windowp"); | |
7138 | DEFSYM (Qwindow_configuration_p, "window-configuration-p"); | |
7139 | DEFSYM (Qwindow_live_p, "window-live-p"); | |
52162052 | 7140 | DEFSYM (Qwindow_valid_p, "window-valid-p"); |
cd3520a4 JB |
7141 | DEFSYM (Qwindow_deletable_p, "window-deletable-p"); |
7142 | DEFSYM (Qdelete_window, "delete-window"); | |
5386012d MR |
7143 | DEFSYM (Qwindow_resize_root_window, "window--resize-root-window"); |
7144 | DEFSYM (Qwindow_resize_root_window_vertically, "window--resize-root-window-vertically"); | |
880e6158 | 7145 | DEFSYM (Qwindow_pixel_to_total, "window--pixel-to-total"); |
cd3520a4 JB |
7146 | DEFSYM (Qsafe, "safe"); |
7147 | DEFSYM (Qdisplay_buffer, "display-buffer"); | |
7148 | DEFSYM (Qreplace_buffer_in_windows, "replace-buffer-in-windows"); | |
7149 | DEFSYM (Qrecord_window_buffer, "record-window-buffer"); | |
7150 | DEFSYM (Qget_mru_window, "get-mru-window"); | |
5938d519 | 7151 | DEFSYM (Qwindow_size, "window-size"); |
cd3520a4 JB |
7152 | DEFSYM (Qtemp_buffer_show_hook, "temp-buffer-show-hook"); |
7153 | DEFSYM (Qabove, "above"); | |
7154 | DEFSYM (Qbelow, "below"); | |
6a6ee00d | 7155 | DEFSYM (Qclone_of, "clone-of"); |
b9e809c2 | 7156 | |
67492200 | 7157 | staticpro (&Vwindow_list); |
8bfb170b KS |
7158 | |
7159 | minibuf_selected_window = Qnil; | |
3dbab091 | 7160 | staticpro (&minibuf_selected_window); |
67492200 | 7161 | |
c876b227 | 7162 | window_scroll_pixel_based_preserve_x = -1; |
66fe93d1 | 7163 | window_scroll_pixel_based_preserve_y = -1; |
c876b227 SM |
7164 | window_scroll_preserve_hpos = -1; |
7165 | window_scroll_preserve_vpos = -1; | |
66d43aea | 7166 | |
29208e82 | 7167 | DEFVAR_LISP ("temp-buffer-show-function", Vtemp_buffer_show_function, |
fdb82f93 PJ |
7168 | doc: /* Non-nil means call as function to display a help buffer. |
7169 | The function is called with one argument, the buffer to be displayed. | |
7170 | Used by `with-output-to-temp-buffer'. | |
7171 | If this function is used, then it must do the entire job of showing | |
7172 | the buffer; `temp-buffer-show-hook' is not run unless this function runs it. */); | |
7ab12479 | 7173 | Vtemp_buffer_show_function = Qnil; |
e10ac9f1 | 7174 | |
29208e82 | 7175 | DEFVAR_LISP ("minibuffer-scroll-window", Vminibuf_scroll_window, |
fdb82f93 | 7176 | doc: /* Non-nil means it is the window that C-M-v in minibuffer should scroll. */); |
7ab12479 JB |
7177 | Vminibuf_scroll_window = Qnil; |
7178 | ||
29208e82 | 7179 | DEFVAR_BOOL ("mode-line-in-non-selected-windows", mode_line_in_non_selected_windows, |
26124d5e | 7180 | doc: /* Non-nil means to use `mode-line-inactive' face in non-selected windows. |
cc91894c KS |
7181 | If the minibuffer is active, the `minibuffer-scroll-window' mode line |
7182 | is displayed in the `mode-line' face. */); | |
7183 | mode_line_in_non_selected_windows = 1; | |
26124d5e | 7184 | |
29208e82 | 7185 | DEFVAR_LISP ("other-window-scroll-buffer", Vother_window_scroll_buffer, |
fdb82f93 | 7186 | doc: /* If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. */); |
7ab12479 JB |
7187 | Vother_window_scroll_buffer = Qnil; |
7188 | ||
29208e82 | 7189 | DEFVAR_BOOL ("auto-window-vscroll", auto_window_vscroll_p, |
e10ac9f1 | 7190 | doc: /* Non-nil means to automatically adjust `window-vscroll' to view tall lines. */); |
e56263e5 KS |
7191 | auto_window_vscroll_p = 1; |
7192 | ||
29208e82 | 7193 | DEFVAR_INT ("next-screen-context-lines", next_screen_context_lines, |
e10ac9f1 | 7194 | doc: /* Number of lines of continuity when scrolling by screenfuls. */); |
7ab12479 JB |
7195 | next_screen_context_lines = 2; |
7196 | ||
5500c422 | 7197 | DEFVAR_LISP ("scroll-preserve-screen-position", |
29208e82 | 7198 | Vscroll_preserve_screen_position, |
e10ac9f1 | 7199 | doc: /* Controls if scroll commands move point to keep its screen position unchanged. |
bdf4ec93 RS |
7200 | A value of nil means point does not keep its screen position except |
7201 | at the scroll margin or window boundary respectively. | |
7202 | A value of t means point keeps its screen position if the scroll | |
7203 | command moved it vertically out of the window, e.g. when scrolling | |
7204 | by full screens. | |
9013a7f8 | 7205 | Any other value means point always keeps its screen position. |
a4b000fb JL |
7206 | Scroll commands should have the `scroll-command' property |
7207 | on their symbols to be controlled by this variable. */); | |
5500c422 | 7208 | Vscroll_preserve_screen_position = Qnil; |
9317a85d | 7209 | |
29208e82 | 7210 | DEFVAR_LISP ("window-point-insertion-type", Vwindow_point_insertion_type, |
a1562258 SM |
7211 | doc: /* Type of marker to use for `window-point'. */); |
7212 | Vwindow_point_insertion_type = Qnil; | |
7213 | ||
543f5fb1 | 7214 | DEFVAR_LISP ("window-configuration-change-hook", |
29208e82 | 7215 | Vwindow_configuration_change_hook, |
fdb82f93 | 7216 | doc: /* Functions to call when window configuration changes. |
6a44ffb3 SM |
7217 | The buffer-local part is run once per window, with the relevant window |
7218 | selected; while the global part is run only once for the modified frame, | |
7219 | with the relevant frame selected. */); | |
543f5fb1 RS |
7220 | Vwindow_configuration_change_hook = Qnil; |
7221 | ||
29208e82 | 7222 | DEFVAR_LISP ("recenter-redisplay", Vrecenter_redisplay, |
61d4b438 MR |
7223 | doc: /* Non-nil means `recenter' redraws entire frame. |
7224 | If this option is non-nil, then the `recenter' command with a nil | |
7225 | argument will redraw the entire frame; the special value `tty' causes | |
7226 | the frame to be redrawn only if it is a tty frame. */); | |
666e158e MB |
7227 | Vrecenter_redisplay = Qtty; |
7228 | ||
a0c2d0ae | 7229 | DEFVAR_LISP ("window-combination-resize", Vwindow_combination_resize, |
454592a6 | 7230 | doc: /* If t, resize window combinations proportionally. |
1a13852e | 7231 | If this variable is nil, splitting a window gets the entire screen space |
a0c2d0ae | 7232 | for displaying the new window from the window to split. Deleting and |
df85d315 | 7233 | resizing a window preferably resizes one adjacent window only. |
a0c2d0ae | 7234 | |
454592a6 | 7235 | If this variable is t, splitting a window tries to get the space |
a0c2d0ae MR |
7236 | proportionally from all windows in the same combination. This also |
7237 | allows to split a window that is otherwise too small or of fixed size. | |
7238 | Resizing and deleting a window proportionally resize all windows in the | |
7239 | same combination. | |
1a13852e | 7240 | |
454592a6 MR |
7241 | Other values are reserved for future use. |
7242 | ||
9fc9a531 AH |
7243 | This variable takes no effect if the variable `window-combination-limit' is |
7244 | non-nil. */); | |
a0c2d0ae | 7245 | Vwindow_combination_resize = Qnil; |
1a13852e | 7246 | |
b6f67890 | 7247 | DEFVAR_LISP ("window-combination-limit", Vwindow_combination_limit, |
8e17c9ba MR |
7248 | doc: /* If non-nil, splitting a window makes a new parent window. |
7249 | The following values are recognized: | |
1a13852e | 7250 | |
8e17c9ba | 7251 | nil means splitting a window will create a new parent window only if the |
5938d519 MR |
7252 | window has no parent window or the window shall become part of a |
7253 | combination orthogonal to the one it is part of. | |
1a13852e | 7254 | |
5938d519 MR |
7255 | `window-size' means that splitting a window for displaying a buffer |
7256 | makes a new parent window provided `display-buffer' is supposed to | |
7257 | explicitly set the window's size due to the presence of a | |
7258 | `window-height' or `window-width' entry in the alist used by | |
7259 | `display-buffer'. Otherwise, this value is handled like nil. | |
8e17c9ba MR |
7260 | |
7261 | `temp-buffer' means that splitting a window for displaying a temporary | |
7262 | buffer always makes a new parent window. Otherwise, this value is | |
7263 | handled like nil. | |
7264 | ||
8e17c9ba MR |
7265 | `display-buffer' means that splitting a window for displaying a buffer |
7266 | always makes a new parent window. Since temporary buffers are | |
7267 | displayed by the function `display-buffer', this value is stronger | |
7268 | than `temp-buffer'. Splitting a window for other purpose makes a | |
7269 | new parent window only if needed. | |
7270 | ||
7271 | t means that splitting a window always creates a new parent window. If | |
7272 | all splits behave this way, each frame's window tree is a binary | |
7273 | tree and every window but the frame's root window has exactly one | |
7274 | sibling. | |
1a13852e | 7275 | |
8e17c9ba | 7276 | Other values are reserved for future use. */); |
5938d519 | 7277 | Vwindow_combination_limit = Qwindow_size; |
666e158e | 7278 | |
6a6ee00d MR |
7279 | DEFVAR_LISP ("window-persistent-parameters", Vwindow_persistent_parameters, |
7280 | doc: /* Alist of persistent window parameters. | |
34a02f46 MR |
7281 | This alist specifies which window parameters shall get saved by |
7282 | `current-window-configuration' and `window-state-get' and subsequently | |
7283 | restored to their previous values by `set-window-configuration' and | |
7284 | `window-state-put'. | |
6a6ee00d MR |
7285 | |
7286 | The car of each entry of this alist is the symbol specifying the | |
7287 | parameter. The cdr is one of the following: | |
7288 | ||
34a02f46 MR |
7289 | nil means the parameter is neither saved by `window-state-get' nor by |
7290 | `current-window-configuration'. | |
6a6ee00d | 7291 | |
34a02f46 MR |
7292 | t means the parameter is saved by `current-window-configuration' and, |
7293 | provided its WRITABLE argument is nil, by `window-state-get'. | |
6a6ee00d | 7294 | |
34a02f46 MR |
7295 | The symbol `writable' means the parameter is saved unconditionally by |
7296 | both `current-window-configuration' and `window-state-get'. Do not use | |
7297 | this value for parameters without read syntax (like windows or frames). | |
6a6ee00d MR |
7298 | |
7299 | Parameters not saved by `current-window-configuration' or | |
7300 | `window-state-get' are left alone by `set-window-configuration' | |
7301 | respectively are not installed by `window-state-put'. */); | |
34a02f46 | 7302 | Vwindow_persistent_parameters = list1 (Fcons (Qclone_of, Qt)); |
6a6ee00d | 7303 | |
880e6158 MR |
7304 | DEFVAR_BOOL ("window-resize-pixelwise", window_resize_pixelwise, |
7305 | doc: /* Non-nil means resizing windows works pixelwise. | |
7306 | Functions currently affected by this option are `split-window', | |
7307 | `maximize-window', `minimize-window', `fit-window-to-buffer' and | |
7308 | `fit-frame-to-buffer' and all functions symmetrically resizing a | |
7309 | parent window. | |
7310 | ||
7311 | Note that when a frame's pixel size is not a multiple of the | |
7312 | frame's character size, at least one window may get resized | |
7313 | pixelwise even if this option is nil. */); | |
7314 | window_resize_pixelwise = 0; | |
7315 | ||
7ab12479 JB |
7316 | defsubr (&Sselected_window); |
7317 | defsubr (&Sminibuffer_window); | |
7318 | defsubr (&Swindow_minibuffer_p); | |
7319 | defsubr (&Swindowp); | |
52162052 | 7320 | defsubr (&Swindow_valid_p); |
806b4d9b | 7321 | defsubr (&Swindow_live_p); |
727e958e MR |
7322 | defsubr (&Swindow_frame); |
7323 | defsubr (&Sframe_root_window); | |
7324 | defsubr (&Sframe_first_window); | |
7325 | defsubr (&Sframe_selected_window); | |
7326 | defsubr (&Sset_frame_selected_window); | |
7ab12479 | 7327 | defsubr (&Spos_visible_in_window_p); |
536833ab | 7328 | defsubr (&Swindow_line_height); |
7ab12479 | 7329 | defsubr (&Swindow_buffer); |
bf60a96b | 7330 | defsubr (&Swindow_parent); |
d68443dc MR |
7331 | defsubr (&Swindow_top_child); |
7332 | defsubr (&Swindow_left_child); | |
7333 | defsubr (&Swindow_next_sibling); | |
7334 | defsubr (&Swindow_prev_sibling); | |
b6f67890 MR |
7335 | defsubr (&Swindow_combination_limit); |
7336 | defsubr (&Sset_window_combination_limit); | |
abde8f8c | 7337 | defsubr (&Swindow_use_time); |
880e6158 MR |
7338 | defsubr (&Swindow_pixel_width); |
7339 | defsubr (&Swindow_pixel_height); | |
105216ed | 7340 | defsubr (&Swindow_total_width); |
880e6158 | 7341 | defsubr (&Swindow_total_height); |
496e208e | 7342 | defsubr (&Swindow_normal_size); |
880e6158 | 7343 | defsubr (&Swindow_new_pixel); |
496e208e MR |
7344 | defsubr (&Swindow_new_total); |
7345 | defsubr (&Swindow_new_normal); | |
880e6158 MR |
7346 | defsubr (&Swindow_pixel_left); |
7347 | defsubr (&Swindow_pixel_top); | |
7348 | defsubr (&Swindow_left_column); | |
7349 | defsubr (&Swindow_top_line); | |
7350 | defsubr (&Sset_window_new_pixel); | |
496e208e MR |
7351 | defsubr (&Sset_window_new_total); |
7352 | defsubr (&Sset_window_new_normal); | |
d615d6d2 | 7353 | defsubr (&Swindow_resize_apply); |
880e6158 | 7354 | defsubr (&Swindow_resize_apply_total); |
105216ed CY |
7355 | defsubr (&Swindow_body_height); |
7356 | defsubr (&Swindow_body_width); | |
7ab12479 JB |
7357 | defsubr (&Swindow_hscroll); |
7358 | defsubr (&Sset_window_hscroll); | |
190eb263 RS |
7359 | defsubr (&Swindow_redisplay_end_trigger); |
7360 | defsubr (&Sset_window_redisplay_end_trigger); | |
7ab12479 | 7361 | defsubr (&Swindow_edges); |
c99a9eb3 | 7362 | defsubr (&Swindow_pixel_edges); |
9d5405ec | 7363 | defsubr (&Swindow_absolute_pixel_edges); |
880e6158 MR |
7364 | defsubr (&Swindow_mode_line_height); |
7365 | defsubr (&Swindow_header_line_height); | |
7366 | defsubr (&Swindow_right_divider_width); | |
7367 | defsubr (&Swindow_bottom_divider_width); | |
c99a9eb3 RS |
7368 | defsubr (&Swindow_inside_edges); |
7369 | defsubr (&Swindow_inside_pixel_edges); | |
9d5405ec | 7370 | defsubr (&Swindow_inside_absolute_pixel_edges); |
d5783c40 JB |
7371 | defsubr (&Scoordinates_in_window_p); |
7372 | defsubr (&Swindow_at); | |
7ab12479 JB |
7373 | defsubr (&Swindow_point); |
7374 | defsubr (&Swindow_start); | |
7375 | defsubr (&Swindow_end); | |
7376 | defsubr (&Sset_window_point); | |
7377 | defsubr (&Sset_window_start); | |
7378 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 7379 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
7380 | defsubr (&Swindow_display_table); |
7381 | defsubr (&Sset_window_display_table); | |
7382 | defsubr (&Snext_window); | |
7383 | defsubr (&Sprevious_window); | |
7ab12479 | 7384 | defsubr (&Sget_buffer_window); |
1a13852e MR |
7385 | defsubr (&Sdelete_other_windows_internal); |
7386 | defsubr (&Sdelete_window_internal); | |
7387 | defsubr (&Sresize_mini_window_internal); | |
7ab12479 | 7388 | defsubr (&Sset_window_buffer); |
1a13852e | 7389 | defsubr (&Srun_window_configuration_change_hook); |
880e6158 | 7390 | defsubr (&Srun_window_scroll_functions); |
7ab12479 | 7391 | defsubr (&Sselect_window); |
6b61353c | 7392 | defsubr (&Sforce_window_update); |
1a13852e | 7393 | defsubr (&Ssplit_window_internal); |
7ab12479 JB |
7394 | defsubr (&Sscroll_up); |
7395 | defsubr (&Sscroll_down); | |
7396 | defsubr (&Sscroll_left); | |
7397 | defsubr (&Sscroll_right); | |
ccd0664b | 7398 | defsubr (&Sother_window_for_scrolling); |
7ab12479 | 7399 | defsubr (&Sscroll_other_window); |
fa832261 | 7400 | defsubr (&Sminibuffer_selected_window); |
7ab12479 | 7401 | defsubr (&Srecenter); |
880e6158 | 7402 | defsubr (&Swindow_text_width); |
81fe0836 | 7403 | defsubr (&Swindow_text_height); |
7ab12479 JB |
7404 | defsubr (&Smove_to_window_line); |
7405 | defsubr (&Swindow_configuration_p); | |
3f8ab7bd | 7406 | defsubr (&Swindow_configuration_frame); |
7ab12479 JB |
7407 | defsubr (&Sset_window_configuration); |
7408 | defsubr (&Scurrent_window_configuration); | |
5500c422 GM |
7409 | defsubr (&Sset_window_margins); |
7410 | defsubr (&Swindow_margins); | |
949cf20f KS |
7411 | defsubr (&Sset_window_fringes); |
7412 | defsubr (&Swindow_fringes); | |
7413 | defsubr (&Sset_window_scroll_bars); | |
7414 | defsubr (&Swindow_scroll_bars); | |
5500c422 GM |
7415 | defsubr (&Swindow_vscroll); |
7416 | defsubr (&Sset_window_vscroll); | |
2f8274be | 7417 | defsubr (&Scompare_window_configurations); |
67492200 | 7418 | defsubr (&Swindow_list); |
abde8f8c | 7419 | defsubr (&Swindow_list_1); |
496e208e MR |
7420 | defsubr (&Swindow_prev_buffers); |
7421 | defsubr (&Sset_window_prev_buffers); | |
7422 | defsubr (&Swindow_next_buffers); | |
7423 | defsubr (&Sset_window_next_buffers); | |
cfbb2395 JB |
7424 | defsubr (&Swindow_parameters); |
7425 | defsubr (&Swindow_parameter); | |
7426 | defsubr (&Sset_window_parameter); | |
7ab12479 JB |
7427 | } |
7428 | ||
dfcf069d | 7429 | void |
971de7fb | 7430 | keys_of_window (void) |
7ab12479 | 7431 | { |
7ab12479 JB |
7432 | initial_define_key (control_x_map, '<', "scroll-left"); |
7433 | initial_define_key (control_x_map, '>', "scroll-right"); | |
7434 | ||
32129746 | 7435 | initial_define_key (global_map, Ctl ('V'), "scroll-up-command"); |
7ab12479 | 7436 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); |
32129746 | 7437 | initial_define_key (meta_map, 'v', "scroll-down-command"); |
7ab12479 | 7438 | } |