Commit | Line | Data |
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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
4a2f9c6a | 3 | Copyright (C) 1985,86,87,93,94,95,96,97,1998 Free Software Foundation, Inc. |
7ab12479 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
1113d9db | 9 | the Free Software Foundation; either version 2, or (at your option) |
7ab12479 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
7ab12479 | 21 | |
18160b98 | 22 | #include <config.h> |
7ab12479 JB |
23 | #include "lisp.h" |
24 | #include "buffer.h" | |
44fa5b1e | 25 | #include "frame.h" |
7ab12479 JB |
26 | #include "window.h" |
27 | #include "commands.h" | |
28 | #include "indent.h" | |
29 | #include "termchar.h" | |
30 | #include "disptab.h" | |
f8026fd8 | 31 | #include "keyboard.h" |
dfcf069d | 32 | #include "dispextern.h" |
5500c422 GM |
33 | #include "blockinput.h" |
34 | #include "intervals.h" | |
35 | ||
6d55d620 | 36 | #ifdef HAVE_X_WINDOWS |
dfcf069d | 37 | #include "xterm.h" |
5500c422 GM |
38 | #endif /* HAVE_X_WINDOWS */ |
39 | ||
40 | #ifndef max | |
41 | #define max(a, b) ((a) < (b) ? (b) : (a)) | |
dfcf069d | 42 | #endif |
7ab12479 | 43 | |
5500c422 | 44 | |
3f8ab7bd | 45 | Lisp_Object Qwindowp, Qwindow_live_p, Qwindow_configuration_p; |
7ab12479 | 46 | |
5e14b1fc | 47 | static struct window *decode_window P_ ((Lisp_Object)); |
b7354ddf | 48 | static Lisp_Object select_window_1 P_ ((Lisp_Object, int)); |
5500c422 GM |
49 | static int count_windows P_ ((struct window *)); |
50 | static int get_leaf_windows P_ ((struct window *, struct window **, int)); | |
51 | static void window_scroll P_ ((Lisp_Object, int, int, int)); | |
52 | static void window_scroll_pixel_based P_ ((Lisp_Object, int, int, int)); | |
53 | static void window_scroll_line_based P_ ((Lisp_Object, int, int, int)); | |
54 | ||
55 | ||
b7354ddf | 56 | |
7ab12479 JB |
57 | /* This is the window in which the terminal's cursor should |
58 | be left when nothing is being done with it. This must | |
59 | always be a leaf window, and its buffer is selected by | |
60 | the top level editing loop at the end of each command. | |
61 | ||
62 | This value is always the same as | |
44fa5b1e | 63 | FRAME_SELECTED_WINDOW (selected_frame). */ |
7ab12479 JB |
64 | |
65 | Lisp_Object selected_window; | |
66 | ||
5500c422 GM |
67 | /* The mini-buffer window of the selected frame. |
68 | Note that you cannot test for mini-bufferness of an arbitrary window | |
69 | by comparing against this; but you can test for mini-bufferness of | |
7ab12479 | 70 | the selected window. */ |
5500c422 | 71 | |
7ab12479 JB |
72 | Lisp_Object minibuf_window; |
73 | ||
74 | /* Non-nil means it is the window for C-M-v to scroll | |
5500c422 GM |
75 | when the mini-buffer is selected. */ |
76 | ||
7ab12479 JB |
77 | Lisp_Object Vminibuf_scroll_window; |
78 | ||
79 | /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
5500c422 | 80 | |
7ab12479 JB |
81 | Lisp_Object Vother_window_scroll_buffer; |
82 | ||
7ab12479 | 83 | /* Non-nil means it's function to call to display temp buffers. */ |
5500c422 | 84 | |
7ab12479 JB |
85 | Lisp_Object Vtemp_buffer_show_function; |
86 | ||
87 | /* If a window gets smaller than either of these, it is removed. */ | |
5500c422 | 88 | |
7ab12479 JB |
89 | int window_min_height; |
90 | int window_min_width; | |
91 | ||
92 | /* Nonzero implies Fdisplay_buffer should create windows. */ | |
5500c422 | 93 | |
7ab12479 JB |
94 | int pop_up_windows; |
95 | ||
44fa5b1e | 96 | /* Nonzero implies make new frames for Fdisplay_buffer. */ |
5500c422 | 97 | |
44fa5b1e | 98 | int pop_up_frames; |
7ab12479 JB |
99 | |
100 | /* Non-nil means use this function instead of default */ | |
5500c422 | 101 | |
44fa5b1e | 102 | Lisp_Object Vpop_up_frame_function; |
7ab12479 JB |
103 | |
104 | /* Function to call to handle Fdisplay_buffer. */ | |
5500c422 | 105 | |
7ab12479 JB |
106 | Lisp_Object Vdisplay_buffer_function; |
107 | ||
a90712c2 | 108 | /* List of buffer *names* for buffers that should have their own frames. */ |
5500c422 | 109 | |
a90712c2 RS |
110 | Lisp_Object Vspecial_display_buffer_names; |
111 | ||
112 | /* List of regexps for buffer names that should have their own frames. */ | |
5500c422 | 113 | |
a90712c2 RS |
114 | Lisp_Object Vspecial_display_regexps; |
115 | ||
116 | /* Function to pop up a special frame. */ | |
5500c422 | 117 | |
a90712c2 RS |
118 | Lisp_Object Vspecial_display_function; |
119 | ||
855d8627 | 120 | /* List of buffer *names* for buffers to appear in selected window. */ |
5500c422 | 121 | |
855d8627 RS |
122 | Lisp_Object Vsame_window_buffer_names; |
123 | ||
124 | /* List of regexps for buffer names to appear in selected window. */ | |
5500c422 | 125 | |
855d8627 RS |
126 | Lisp_Object Vsame_window_regexps; |
127 | ||
a58ec57d | 128 | /* Hook run at end of temp_output_buffer_show. */ |
5500c422 | 129 | |
a58ec57d RS |
130 | Lisp_Object Qtemp_buffer_show_hook; |
131 | ||
37962e60 | 132 | /* Fdisplay_buffer always splits the largest window |
7ab12479 | 133 | if that window is more than this high. */ |
5500c422 | 134 | |
7ab12479 JB |
135 | int split_height_threshold; |
136 | ||
137 | /* Number of lines of continuity in scrolling by screenfuls. */ | |
5500c422 | 138 | |
7ab12479 JB |
139 | int next_screen_context_lines; |
140 | ||
141 | /* Incremented for each window created. */ | |
5500c422 | 142 | |
7ab12479 JB |
143 | static int sequence_number; |
144 | ||
5b03d3c0 | 145 | /* Nonzero after init_window_once has finished. */ |
5500c422 | 146 | |
5b03d3c0 RS |
147 | static int window_initialized; |
148 | ||
543f5fb1 | 149 | /* Hook to run when window config changes. */ |
5500c422 | 150 | |
543f5fb1 RS |
151 | Lisp_Object Qwindow_configuration_change_hook; |
152 | Lisp_Object Vwindow_configuration_change_hook; | |
153 | ||
9317a85d RS |
154 | /* Nonzero means scroll commands try to put point |
155 | at the same screen height as previously. */ | |
9317a85d | 156 | |
5500c422 GM |
157 | Lisp_Object Vscroll_preserve_screen_position; |
158 | ||
159 | #if 0 /* This isn't used anywhere. */ | |
91a78190 | 160 | /* Nonzero means we can split a frame even if it is "unsplittable". */ |
eddd51c2 | 161 | static int inhibit_frame_unsplittable; |
5500c422 | 162 | #endif /* 0 */ |
7d601aaa | 163 | |
7ab12479 | 164 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
dba06815 | 165 | |
9317a85d RS |
166 | extern int scroll_margin; |
167 | ||
dba06815 | 168 | extern Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions; |
7ab12479 JB |
169 | \f |
170 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, | |
413430c5 EN |
171 | "Returns t if OBJECT is a window.") |
172 | (object) | |
173 | Lisp_Object object; | |
7ab12479 | 174 | { |
413430c5 | 175 | return WINDOWP (object) ? Qt : Qnil; |
7ab12479 JB |
176 | } |
177 | ||
806b4d9b | 178 | DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0, |
413430c5 EN |
179 | "Returns t if OBJECT is a window which is currently visible.") |
180 | (object) | |
181 | Lisp_Object object; | |
605be8af | 182 | { |
413430c5 | 183 | return (WINDOWP (object) && ! NILP (XWINDOW (object)->buffer) ? Qt : Qnil); |
605be8af JB |
184 | } |
185 | ||
7ab12479 JB |
186 | Lisp_Object |
187 | make_window () | |
188 | { | |
cffec418 | 189 | Lisp_Object val; |
7ab12479 | 190 | register struct window *p; |
cffec418 KH |
191 | register struct Lisp_Vector *vec; |
192 | int i; | |
193 | ||
194 | vec = allocate_vectorlike ((EMACS_INT) VECSIZE (struct window)); | |
195 | for (i = 0; i < VECSIZE (struct window); i++) | |
196 | vec->contents[i] = Qnil; | |
197 | vec->size = VECSIZE (struct window); | |
5500c422 | 198 | p = (struct window *) vec; |
d834a2e9 KH |
199 | XSETFASTINT (p->sequence_number, ++sequence_number); |
200 | XSETFASTINT (p->left, 0); | |
201 | XSETFASTINT (p->top, 0); | |
202 | XSETFASTINT (p->height, 0); | |
203 | XSETFASTINT (p->width, 0); | |
204 | XSETFASTINT (p->hscroll, 0); | |
7ab12479 JB |
205 | p->start = Fmake_marker (); |
206 | p->pointm = Fmake_marker (); | |
d834a2e9 | 207 | XSETFASTINT (p->use_time, 0); |
44fa5b1e | 208 | p->frame = Qnil; |
7ab12479 JB |
209 | p->display_table = Qnil; |
210 | p->dedicated = Qnil; | |
5500c422 GM |
211 | p->pseudo_window_p = 0; |
212 | bzero (&p->cursor, sizeof (p->cursor)); | |
213 | bzero (&p->last_cursor, sizeof (p->last_cursor)); | |
214 | bzero (&p->phys_cursor, sizeof (p->phys_cursor)); | |
215 | p->desired_matrix = p->current_matrix = 0; | |
216 | p->phys_cursor_type = -1; | |
217 | p->must_be_updated_p = 0; | |
218 | XSETFASTINT (p->window_end_vpos, 0); | |
219 | XSETFASTINT (p->window_end_pos, 0); | |
220 | p->window_end_valid = Qnil; | |
221 | p->vscroll = 0; | |
cffec418 | 222 | XSETWINDOW (val, p); |
5500c422 | 223 | XSETFASTINT (p->last_point, 0); |
7ab12479 JB |
224 | return val; |
225 | } | |
226 | ||
227 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
228 | "Return the window that the cursor now appears in and commands apply to.") | |
229 | () | |
230 | { | |
231 | return selected_window; | |
232 | } | |
233 | ||
83762ba4 JB |
234 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, |
235 | "Return the window used now for minibuffers.\n\ | |
236 | If the optional argument FRAME is specified, return the minibuffer window\n\ | |
237 | used by that frame.") | |
238 | (frame) | |
239 | Lisp_Object frame; | |
7ab12479 | 240 | { |
83762ba4 | 241 | if (NILP (frame)) |
74112613 | 242 | XSETFRAME (frame, selected_frame); |
83762ba4 JB |
243 | else |
244 | CHECK_LIVE_FRAME (frame, 0); | |
83762ba4 JB |
245 | |
246 | return FRAME_MINIBUF_WINDOW (XFRAME (frame)); | |
7ab12479 JB |
247 | } |
248 | ||
605be8af | 249 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 0, 1, 0, |
7ab12479 JB |
250 | "Returns non-nil if WINDOW is a minibuffer window.") |
251 | (window) | |
252 | Lisp_Object window; | |
253 | { | |
254 | struct window *w = decode_window (window); | |
255 | return (MINI_WINDOW_P (w) ? Qt : Qnil); | |
256 | } | |
257 | ||
258 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, | |
259 | Spos_visible_in_window_p, 0, 2, 0, | |
44fa5b1e | 260 | "Return t if position POS is currently on the frame in WINDOW.\n\ |
7ab12479 JB |
261 | Returns nil if that position is scrolled vertically out of view.\n\ |
262 | POS defaults to point; WINDOW, to the selected window.") | |
263 | (pos, window) | |
264 | Lisp_Object pos, window; | |
265 | { | |
266 | register struct window *w; | |
5500c422 | 267 | struct text_pos top; |
7ab12479 JB |
268 | register int posint; |
269 | register struct buffer *buf; | |
7ab12479 | 270 | |
265a9e55 | 271 | if (NILP (pos)) |
5ce7b543 | 272 | posint = PT; |
7ab12479 JB |
273 | else |
274 | { | |
275 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
276 | posint = XINT (pos); | |
277 | } | |
278 | ||
605be8af | 279 | w = decode_window (window); |
5500c422 | 280 | SET_TEXT_POS_FROM_MARKER (top, w->start); |
7ab12479 | 281 | |
5500c422 GM |
282 | /* If position above window, it's not visible. */ |
283 | if (posint < CHARPOS (top)) | |
7ab12479 JB |
284 | return Qnil; |
285 | ||
7ab12479 | 286 | buf = XBUFFER (w->buffer); |
3cd21523 RS |
287 | if (XFASTINT (w->last_modified) >= BUF_MODIFF (buf) |
288 | && XFASTINT (w->last_overlay_modified) >= BUF_OVERLAY_MODIFF (buf)) | |
7ab12479 | 289 | { |
44fa5b1e | 290 | /* If frame is up to date, |
5500c422 GM |
291 | use the info recorded about how much text fit on it. */ |
292 | if (posint < BUF_Z (buf) - XFASTINT (w->window_end_pos)) | |
7ab12479 JB |
293 | return Qt; |
294 | return Qnil; | |
295 | } | |
296 | else | |
297 | { | |
5500c422 GM |
298 | struct it it; |
299 | ||
33eb4ede | 300 | if (posint > BUF_ZV (buf)) |
7ab12479 JB |
301 | return Qnil; |
302 | ||
61b5322b | 303 | /* w->start can be out of range. If it is, do something reasonable. */ |
5500c422 GM |
304 | if (CHARPOS (top) < BUF_BEGV (buf) |
305 | || CHARPOS (top) > BUF_ZV (buf)) | |
61b5322b RS |
306 | return Qnil; |
307 | ||
5500c422 GM |
308 | start_display (&it, w, top); |
309 | move_it_to (&it, posint, 0, it.last_visible_y, -1, | |
310 | MOVE_TO_POS | MOVE_TO_X | MOVE_TO_Y); | |
311 | return IT_CHARPOS (it) == posint ? Qt : Qnil; | |
7ab12479 JB |
312 | } |
313 | } | |
314 | \f | |
315 | static struct window * | |
316 | decode_window (window) | |
317 | register Lisp_Object window; | |
318 | { | |
265a9e55 | 319 | if (NILP (window)) |
7ab12479 JB |
320 | return XWINDOW (selected_window); |
321 | ||
605be8af | 322 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
323 | return XWINDOW (window); |
324 | } | |
325 | ||
326 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, | |
327 | "Return the buffer that WINDOW is displaying.") | |
328 | (window) | |
329 | Lisp_Object window; | |
330 | { | |
331 | return decode_window (window)->buffer; | |
332 | } | |
333 | ||
334 | DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0, | |
335 | "Return the number of lines in WINDOW (including its mode line).") | |
336 | (window) | |
337 | Lisp_Object window; | |
338 | { | |
339 | return decode_window (window)->height; | |
340 | } | |
341 | ||
342 | DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0, | |
3b5908ef RS |
343 | "Return the number of display columns in WINDOW.\n\ |
344 | This is the width that is usable columns available for text in WINDOW.\n\ | |
345 | If you want to find out how many columns WINDOW takes up,\n\ | |
346 | use (let ((edges (window-edges))) (- (nth 2 edges) (nth 0 edges))).") | |
7ab12479 JB |
347 | (window) |
348 | Lisp_Object window; | |
349 | { | |
ee61d94e | 350 | return make_number (window_internal_width (decode_window (window))); |
7ab12479 JB |
351 | } |
352 | ||
353 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, | |
354 | "Return the number of columns by which WINDOW is scrolled from left margin.") | |
355 | (window) | |
356 | Lisp_Object window; | |
357 | { | |
358 | return decode_window (window)->hscroll; | |
359 | } | |
360 | ||
361 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, | |
362 | "Set number of columns WINDOW is scrolled from left margin to NCOL.\n\ | |
363 | NCOL should be zero or positive.") | |
364 | (window, ncol) | |
365 | register Lisp_Object window, ncol; | |
366 | { | |
367 | register struct window *w; | |
368 | ||
369 | CHECK_NUMBER (ncol, 1); | |
d834a2e9 | 370 | if (XINT (ncol) < 0) XSETFASTINT (ncol, 0); |
7ab12479 | 371 | w = decode_window (window); |
7f4161e0 | 372 | if (XINT (w->hscroll) != XINT (ncol)) |
1479ef51 | 373 | XBUFFER (w->buffer)->clip_changed = 1; /* Prevent redisplay shortcuts */ |
7ab12479 JB |
374 | w->hscroll = ncol; |
375 | return ncol; | |
376 | } | |
377 | ||
190eb263 RS |
378 | DEFUN ("window-redisplay-end-trigger", Fwindow_redisplay_end_trigger, |
379 | Swindow_redisplay_end_trigger, 0, 1, 0, | |
380 | "Return WINDOW's redisplay end trigger value.\n\ | |
381 | See `set-window-redisplay-end-trigger' for more information.") | |
382 | (window) | |
383 | Lisp_Object window; | |
384 | { | |
385 | return decode_window (window)->redisplay_end_trigger; | |
386 | } | |
387 | ||
388 | DEFUN ("set-window-redisplay-end-trigger", Fset_window_redisplay_end_trigger, | |
389 | Sset_window_redisplay_end_trigger, 2, 2, 0, | |
390 | "Set WINDOW's redisplay end trigger value to VALUE.\n\ | |
391 | VALUE should be a buffer position (typically a marker) or nil.\n\ | |
76854cf2 RS |
392 | If it is a buffer position, then if redisplay in WINDOW reaches a position\n\ |
393 | beyond VALUE, the functions in `redisplay-end-trigger-functions' are called\n\ | |
394 | with two arguments: WINDOW, and the end trigger value.\n\ | |
395 | Afterwards the end-trigger value is reset to nil.") | |
190eb263 RS |
396 | (window, value) |
397 | register Lisp_Object window, value; | |
398 | { | |
399 | register struct window *w; | |
400 | ||
401 | w = decode_window (window); | |
402 | w->redisplay_end_trigger = value; | |
403 | return value; | |
404 | } | |
405 | ||
7ab12479 JB |
406 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, |
407 | "Return a list of the edge coordinates of WINDOW.\n\ | |
44fa5b1e | 408 | \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.\n\ |
7ab12479 JB |
409 | RIGHT is one more than the rightmost column used by WINDOW,\n\ |
410 | and BOTTOM is one more than the bottommost row used by WINDOW\n\ | |
411 | and its mode-line.") | |
412 | (window) | |
413 | Lisp_Object window; | |
414 | { | |
415 | register struct window *w = decode_window (window); | |
416 | ||
417 | return Fcons (w->left, Fcons (w->top, | |
111e5992 | 418 | Fcons (make_number (WINDOW_RIGHT_EDGE (w)), |
7ab12479 JB |
419 | Fcons (make_number (XFASTINT (w->top) |
420 | + XFASTINT (w->height)), | |
421 | Qnil)))); | |
422 | } | |
423 | ||
d5783c40 JB |
424 | /* Test if the character at column *x, row *y is within window *w. |
425 | If it is not, return 0; | |
426 | if it is in the window's text area, | |
427 | set *x and *y to its location relative to the upper left corner | |
428 | of the window, and | |
429 | return 1; | |
430 | if it is on the window's modeline, return 2; | |
431 | if it is on the border between the window and its right sibling, | |
5500c422 GM |
432 | return 3. |
433 | if it is on the window's top line, return 4; | |
434 | ||
435 | X and Y are frame relative pixel coordinates. */ | |
436 | ||
d5783c40 JB |
437 | static int |
438 | coordinates_in_window (w, x, y) | |
439 | register struct window *w; | |
440 | register int *x, *y; | |
441 | { | |
5500c422 GM |
442 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
443 | int left_x, right_x, top_y, bottom_y; | |
444 | int flags_area_width = FRAME_FLAGS_AREA_WIDTH (f); | |
d5783c40 | 445 | |
5500c422 GM |
446 | if (w->pseudo_window_p) |
447 | { | |
448 | left_x = 0; | |
449 | right_x = XFASTINT (w->width) * CANON_Y_UNIT (f); | |
450 | top_y = WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
451 | bottom_y = WINDOW_DISPLAY_BOTTOM_EDGE_PIXEL_Y (w); | |
452 | } | |
453 | else | |
454 | { | |
455 | left_x = WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w); | |
456 | right_x = WINDOW_DISPLAY_RIGHT_EDGE_PIXEL_X (w); | |
457 | top_y = WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w); | |
458 | bottom_y = WINDOW_DISPLAY_BOTTOM_EDGE_PIXEL_Y (w); | |
459 | } | |
37962e60 | 460 | |
5500c422 GM |
461 | if (*y < top_y |
462 | || *y >= bottom_y | |
463 | || *x < (left_x | |
464 | - flags_area_width | |
465 | - (FRAME_LEFT_SCROLL_BAR_WIDTH (f) | |
466 | * CANON_X_UNIT (f))) | |
467 | || *x > right_x + flags_area_width) | |
468 | /* Completely outside anything interesting. */ | |
469 | return 0; | |
470 | else if (WINDOW_WANTS_MODELINE_P (w) | |
471 | && *y >= bottom_y - CURRENT_MODE_LINE_HEIGHT (w)) | |
472 | /* On the mode line. */ | |
473 | return 2; | |
474 | else if (WINDOW_WANTS_TOP_LINE_P (w) | |
475 | && *y < top_y + CURRENT_TOP_LINE_HEIGHT (w)) | |
476 | /* On the top line. */ | |
477 | return 4; | |
478 | else if (*x < left_x || *x >= right_x) | |
479 | /* Other lines than the mode line don't include flags areas and | |
480 | scroll bars on the left. */ | |
481 | return 0; | |
482 | else if (!w->pseudo_window_p | |
483 | && !WINDOW_RIGHTMOST_P (w) | |
484 | && *x >= right_x - CANON_X_UNIT (f)) | |
485 | /* On the border on the right side of the window? Assume that | |
486 | this area begins at RIGHT_X minus a canonical char width. */ | |
487 | return 3; | |
488 | else | |
489 | { | |
490 | /* Convert X and Y to window-relative pixel coordinates. */ | |
491 | *x -= left_x; | |
492 | *y -= top_y; | |
493 | return 1; | |
494 | } | |
d5783c40 JB |
495 | } |
496 | ||
497 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, | |
498 | Scoordinates_in_window_p, 2, 2, 0, | |
499 | "Return non-nil if COORDINATES are in WINDOW.\n\ | |
1113d9db | 500 | COORDINATES is a cons of the form (X . Y), X and Y being distances\n\ |
44fa5b1e | 501 | measured in characters from the upper-left corner of the frame.\n\ |
1113d9db | 502 | (0 . 0) denotes the character in the upper left corner of the\n\ |
44fa5b1e | 503 | frame.\n\ |
d5783c40 JB |
504 | If COORDINATES are in the text portion of WINDOW,\n\ |
505 | the coordinates relative to the window are returned.\n\ | |
e5d77022 | 506 | If they are in the mode line of WINDOW, `mode-line' is returned.\n\ |
5500c422 | 507 | If they are in the top mode line of WINDOW, `top-line' is returned.\n\ |
d5783c40 | 508 | If they are on the border between WINDOW and its right sibling,\n\ |
e5d77022 | 509 | `vertical-line' is returned.") |
d5783c40 JB |
510 | (coordinates, window) |
511 | register Lisp_Object coordinates, window; | |
512 | { | |
5500c422 GM |
513 | struct window *w; |
514 | struct frame *f; | |
d5783c40 | 515 | int x, y; |
5500c422 | 516 | Lisp_Object lx, ly; |
d5783c40 | 517 | |
605be8af | 518 | CHECK_LIVE_WINDOW (window, 0); |
5500c422 GM |
519 | w = XWINDOW (window); |
520 | f = XFRAME (w->frame); | |
d5783c40 | 521 | CHECK_CONS (coordinates, 1); |
5500c422 GM |
522 | lx = Fcar (coordinates); |
523 | ly = Fcdr (coordinates); | |
524 | CHECK_NUMBER_OR_FLOAT (lx, 1); | |
525 | CHECK_NUMBER_OR_FLOAT (ly, 1); | |
526 | x = PIXEL_X_FROM_CANON_X (f, lx); | |
527 | y = PIXEL_Y_FROM_CANON_Y (f, ly); | |
528 | ||
529 | switch (coordinates_in_window (w, &x, &y)) | |
d5783c40 JB |
530 | { |
531 | case 0: /* NOT in window at all. */ | |
532 | return Qnil; | |
533 | ||
534 | case 1: /* In text part of window. */ | |
5500c422 GM |
535 | /* X and Y are now window relative pixel coordinates. |
536 | Convert them to canonical char units before returning | |
537 | them. */ | |
538 | return Fcons (CANON_X_FROM_PIXEL_X (f, x), | |
539 | CANON_Y_FROM_PIXEL_Y (f, y)); | |
d5783c40 JB |
540 | |
541 | case 2: /* In mode line of window. */ | |
542 | return Qmode_line; | |
37962e60 | 543 | |
d5783c40 | 544 | case 3: /* On right border of window. */ |
e5d77022 | 545 | return Qvertical_line; |
d5783c40 | 546 | |
5500c422 GM |
547 | case 4: |
548 | return Qtop_line; | |
549 | ||
d5783c40 JB |
550 | default: |
551 | abort (); | |
552 | } | |
553 | } | |
554 | ||
5500c422 GM |
555 | /* Find the window containing frame-relative pixel position X/Y and |
556 | return it as a Lisp_Object. If X, Y is on the window's modeline, | |
557 | set *PART to 1; if it is on the separating line between the window | |
558 | and its right sibling, set it to 2; otherwise set it to 0. If | |
559 | there is no window under X, Y return nil and leave *PART | |
560 | unmodified. TOOLBAR_P non-zero means detect toolbar windows. */ | |
561 | ||
7ab12479 | 562 | Lisp_Object |
5500c422 | 563 | window_from_coordinates (frame, x, y, part, toolbar_p) |
44fa5b1e | 564 | FRAME_PTR frame; |
7ab12479 | 565 | int x, y; |
d5783c40 | 566 | int *part; |
5500c422 | 567 | int toolbar_p; |
7ab12479 JB |
568 | { |
569 | register Lisp_Object tem, first; | |
5500c422 | 570 | int found; |
7ab12479 | 571 | |
44fa5b1e | 572 | tem = first = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 573 | |
d5783c40 | 574 | do |
7ab12479 | 575 | { |
5500c422 | 576 | found = coordinates_in_window (XWINDOW (tem), &x, &y); |
7ab12479 JB |
577 | |
578 | if (found) | |
579 | { | |
d5783c40 | 580 | *part = found - 1; |
7ab12479 JB |
581 | return tem; |
582 | } | |
583 | ||
d5783c40 | 584 | tem = Fnext_window (tem, Qt, Qlambda); |
7ab12479 | 585 | } |
5500c422 GM |
586 | while (!EQ (tem, first)); |
587 | ||
588 | /* See if it's in the toolbar window, if a toolbar exists. */ | |
589 | if (toolbar_p | |
590 | && WINDOWP (frame->toolbar_window) | |
591 | && XFASTINT (XWINDOW (frame->toolbar_window)->height) | |
592 | && coordinates_in_window (XWINDOW (frame->toolbar_window), &x, &y)) | |
593 | { | |
594 | *part = 0; | |
595 | return frame->toolbar_window; | |
596 | } | |
37962e60 | 597 | |
d5783c40 | 598 | return Qnil; |
7ab12479 JB |
599 | } |
600 | ||
ab17c3f2 | 601 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
b0c33a94 | 602 | "Return window containing coordinates X and Y on FRAME.\n\ |
44fa5b1e JB |
603 | If omitted, FRAME defaults to the currently selected frame.\n\ |
604 | The top left corner of the frame is considered to be row 0,\n\ | |
95605e15 | 605 | column 0.") |
b0c33a94 RS |
606 | (x, y, frame) |
607 | Lisp_Object x, y, frame; | |
7ab12479 JB |
608 | { |
609 | int part; | |
5500c422 | 610 | struct frame *f; |
7ab12479 | 611 | |
44fa5b1e | 612 | if (NILP (frame)) |
74112613 | 613 | XSETFRAME (frame, selected_frame); |
d5783c40 | 614 | else |
44fa5b1e | 615 | CHECK_LIVE_FRAME (frame, 2); |
5500c422 | 616 | f = XFRAME (frame); |
7ab12479 | 617 | |
5500c422 GM |
618 | /* Check that arguments are integers or floats. */ |
619 | CHECK_NUMBER_OR_FLOAT (x, 0); | |
620 | CHECK_NUMBER_OR_FLOAT (y, 1); | |
621 | ||
622 | return window_from_coordinates (f, | |
623 | PIXEL_X_FROM_CANON_X (f, x), | |
624 | PIXEL_Y_FROM_CANON_Y (f, y), | |
625 | &part, 0); | |
7ab12479 JB |
626 | } |
627 | ||
628 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
629 | "Return current value of point in WINDOW.\n\ | |
630 | For a nonselected window, this is the value point would have\n\ | |
631 | if that window were selected.\n\ | |
632 | \n\ | |
633 | Note that, when WINDOW is the selected window and its buffer\n\ | |
634 | is also currently selected, the value returned is the same as (point).\n\ | |
635 | It would be more strictly correct to return the `top-level' value\n\ | |
636 | of point, outside of any save-excursion forms.\n\ | |
637 | But that is hard to define.") | |
638 | (window) | |
639 | Lisp_Object window; | |
640 | { | |
641 | register struct window *w = decode_window (window); | |
642 | ||
643 | if (w == XWINDOW (selected_window) | |
644 | && current_buffer == XBUFFER (w->buffer)) | |
645 | return Fpoint (); | |
646 | return Fmarker_position (w->pointm); | |
647 | } | |
648 | ||
649 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
0fea6c40 RS |
650 | "Return position at which display currently starts in WINDOW.\n\ |
651 | This is updated by redisplay or by calling `set-window-start'.") | |
7ab12479 JB |
652 | (window) |
653 | Lisp_Object window; | |
654 | { | |
655 | return Fmarker_position (decode_window (window)->start); | |
656 | } | |
657 | ||
8646118f RS |
658 | /* This is text temporarily removed from the doc string below. |
659 | ||
7250968e RS |
660 | This function returns nil if the position is not currently known.\n\ |
661 | That happens when redisplay is preempted and doesn't finish.\n\ | |
662 | If in that case you want to compute where the end of the window would\n\ | |
663 | have been if redisplay had finished, do this:\n\ | |
664 | (save-excursion\n\ | |
665 | (goto-char (window-start window))\n\ | |
666 | (vertical-motion (1- (window-height window)) window)\n\ | |
8646118f RS |
667 | (point))") */ |
668 | ||
478292ed | 669 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 2, 0, |
8646118f RS |
670 | "Return position at which display currently ends in WINDOW.\n\ |
671 | This is updated by redisplay, when it runs to completion.\n\ | |
672 | Simply changing the buffer text or setting `window-start'\n\ | |
478292ed RS |
673 | does not update this value.\n\ |
674 | If UP-TO-DATE is non-nil, compute the up-to-date position\n\ | |
675 | if it isn't already recorded.") | |
676 | (window, update) | |
677 | Lisp_Object window, update; | |
7ab12479 JB |
678 | { |
679 | Lisp_Object value; | |
680 | struct window *w = decode_window (window); | |
5a41ab94 RS |
681 | Lisp_Object buf; |
682 | ||
683 | buf = w->buffer; | |
684 | CHECK_BUFFER (buf, 0); | |
685 | ||
8646118f | 686 | #if 0 /* This change broke some things. We should make it later. */ |
7250968e RS |
687 | /* If we don't know the end position, return nil. |
688 | The user can compute it with vertical-motion if he wants to. | |
689 | It would be nicer to do it automatically, | |
690 | but that's so slow that it would probably bother people. */ | |
691 | if (NILP (w->window_end_valid)) | |
692 | return Qnil; | |
8646118f | 693 | #endif |
7250968e | 694 | |
478292ed RS |
695 | if (! NILP (update) |
696 | && ! (! NILP (w->window_end_valid) | |
697 | && XFASTINT (w->last_modified) >= MODIFF)) | |
698 | { | |
699 | int opoint = PT, opoint_byte = PT_BYTE; | |
700 | TEMP_SET_PT_BOTH (XMARKER (w->start)->charpos, | |
701 | XMARKER (w->start)->bytepos); | |
702 | Fvertical_motion (make_number (window_internal_height (w)), Qnil); | |
703 | XSETINT (value, PT); | |
704 | TEMP_SET_PT_BOTH (opoint, opoint_byte); | |
705 | } | |
706 | else | |
707 | XSETINT (value, | |
708 | BUF_Z (XBUFFER (buf)) - XFASTINT (w->window_end_pos)); | |
7ab12479 JB |
709 | |
710 | return value; | |
711 | } | |
712 | ||
713 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, | |
714 | "Make point value in WINDOW be at position POS in WINDOW's buffer.") | |
715 | (window, pos) | |
716 | Lisp_Object window, pos; | |
717 | { | |
718 | register struct window *w = decode_window (window); | |
719 | ||
720 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
e90c4fe6 RS |
721 | if (w == XWINDOW (selected_window) |
722 | && XBUFFER (w->buffer) == current_buffer) | |
7ab12479 JB |
723 | Fgoto_char (pos); |
724 | else | |
725 | set_marker_restricted (w->pointm, pos, w->buffer); | |
726 | ||
727 | return pos; | |
728 | } | |
729 | ||
730 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
731 | "Make display in WINDOW start at position POS in WINDOW's buffer.\n\ | |
732 | Optional third arg NOFORCE non-nil inhibits next redisplay\n\ | |
733 | from overriding motion of point in order to display at this exact start.") | |
734 | (window, pos, noforce) | |
735 | Lisp_Object window, pos, noforce; | |
736 | { | |
737 | register struct window *w = decode_window (window); | |
738 | ||
739 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
740 | set_marker_restricted (w->start, pos, w->buffer); | |
741 | /* this is not right, but much easier than doing what is right. */ | |
742 | w->start_at_line_beg = Qnil; | |
265a9e55 | 743 | if (NILP (noforce)) |
7ab12479 JB |
744 | w->force_start = Qt; |
745 | w->update_mode_line = Qt; | |
d834a2e9 | 746 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 747 | XSETFASTINT (w->last_overlay_modified, 0); |
62c07cc7 JB |
748 | if (!EQ (window, selected_window)) |
749 | windows_or_buffers_changed++; | |
7ab12479 JB |
750 | return pos; |
751 | } | |
752 | ||
753 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, | |
754 | 1, 1, 0, | |
755 | "Return WINDOW's dedicated object, usually t or nil.\n\ | |
1f18c48f | 756 | See also `set-window-dedicated-p'.") |
7ab12479 JB |
757 | (window) |
758 | Lisp_Object window; | |
759 | { | |
760 | return decode_window (window)->dedicated; | |
761 | } | |
762 | ||
d207b766 RS |
763 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
764 | Sset_window_dedicated_p, 2, 2, 0, | |
765 | "Control whether WINDOW is dedicated to the buffer it displays.\n\ | |
766 | If it is dedicated, Emacs will not automatically change\n\ | |
767 | which buffer appears in it.\n\ | |
768 | The second argument is the new value for the dedication flag;\n\ | |
769 | non-nil means yes.") | |
7ab12479 JB |
770 | (window, arg) |
771 | Lisp_Object window, arg; | |
772 | { | |
773 | register struct window *w = decode_window (window); | |
774 | ||
265a9e55 | 775 | if (NILP (arg)) |
7ab12479 JB |
776 | w->dedicated = Qnil; |
777 | else | |
d207b766 | 778 | w->dedicated = Qt; |
7ab12479 JB |
779 | |
780 | return w->dedicated; | |
781 | } | |
782 | ||
783 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, | |
784 | 0, 1, 0, | |
785 | "Return the display-table that WINDOW is using.") | |
786 | (window) | |
787 | Lisp_Object window; | |
788 | { | |
789 | return decode_window (window)->display_table; | |
790 | } | |
791 | ||
5500c422 GM |
792 | /* Get the display table for use on window W. This is either W's |
793 | display table or W's buffer's display table. Ignore the specified | |
794 | tables if they are not valid; if no valid table is specified, | |
795 | return 0. */ | |
7ab12479 | 796 | |
319315f1 | 797 | struct Lisp_Char_Table * |
7ab12479 JB |
798 | window_display_table (w) |
799 | struct window *w; | |
800 | { | |
801 | Lisp_Object tem; | |
802 | tem = w->display_table; | |
319315f1 RS |
803 | if (DISP_TABLE_P (tem)) |
804 | return XCHAR_TABLE (tem); | |
171d003c RS |
805 | if (NILP (w->buffer)) |
806 | return 0; | |
807 | ||
7ab12479 | 808 | tem = XBUFFER (w->buffer)->display_table; |
319315f1 RS |
809 | if (DISP_TABLE_P (tem)) |
810 | return XCHAR_TABLE (tem); | |
7ab12479 | 811 | tem = Vstandard_display_table; |
319315f1 RS |
812 | if (DISP_TABLE_P (tem)) |
813 | return XCHAR_TABLE (tem); | |
7ab12479 JB |
814 | return 0; |
815 | } | |
816 | ||
3a2712f9 | 817 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
7ab12479 JB |
818 | "Set WINDOW's display-table to TABLE.") |
819 | (window, table) | |
820 | register Lisp_Object window, table; | |
821 | { | |
822 | register struct window *w; | |
7ab12479 JB |
823 | |
824 | w = decode_window (window); | |
825 | w->display_table = table; | |
826 | return table; | |
827 | } | |
828 | \f | |
829 | /* Record info on buffer window w is displaying | |
830 | when it is about to cease to display that buffer. */ | |
dfcf069d | 831 | static void |
7ab12479 JB |
832 | unshow_buffer (w) |
833 | register struct window *w; | |
834 | { | |
12cae7c0 | 835 | Lisp_Object buf; |
b73ea88e | 836 | struct buffer *b; |
7ab12479 | 837 | |
12cae7c0 | 838 | buf = w->buffer; |
b73ea88e RS |
839 | b = XBUFFER (buf); |
840 | if (b != XMARKER (w->pointm)->buffer) | |
7ab12479 JB |
841 | abort (); |
842 | ||
b73ea88e RS |
843 | if (w == XWINDOW (b->last_selected_window)) |
844 | b->last_selected_window = Qnil; | |
86e48436 | 845 | |
573f41ab | 846 | #if 0 |
7ab12479 JB |
847 | if (w == XWINDOW (selected_window) |
848 | || ! EQ (buf, XWINDOW (selected_window)->buffer)) | |
849 | /* Do this except when the selected window's buffer | |
850 | is being removed from some other window. */ | |
573f41ab RS |
851 | #endif |
852 | /* last_window_start records the start position that this buffer | |
853 | had in the last window to be disconnected from it. | |
854 | Now that this statement is unconditional, | |
855 | it is possible for the buffer to be displayed in the | |
856 | selected window, while last_window_start reflects another | |
857 | window which was recently showing the same buffer. | |
858 | Some people might say that might be a good thing. Let's see. */ | |
b73ea88e | 859 | b->last_window_start = marker_position (w->start); |
7ab12479 JB |
860 | |
861 | /* Point in the selected window's buffer | |
862 | is actually stored in that buffer, and the window's pointm isn't used. | |
863 | So don't clobber point in that buffer. */ | |
864 | if (! EQ (buf, XWINDOW (selected_window)->buffer)) | |
b73ea88e RS |
865 | temp_set_point_both (b, |
866 | clip_to_bounds (BUF_BEGV (b), | |
867 | XMARKER (w->pointm)->charpos, | |
868 | BUF_ZV (b)), | |
869 | clip_to_bounds (BUF_BEGV_BYTE (b), | |
870 | marker_byte_position (w->pointm), | |
871 | BUF_ZV_BYTE (b))); | |
7ab12479 JB |
872 | } |
873 | ||
874 | /* Put replacement into the window structure in place of old. */ | |
dfcf069d | 875 | static void |
7ab12479 JB |
876 | replace_window (old, replacement) |
877 | Lisp_Object old, replacement; | |
878 | { | |
879 | register Lisp_Object tem; | |
880 | register struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
881 | ||
44fa5b1e JB |
882 | /* If OLD is its frame's root_window, then replacement is the new |
883 | root_window for that frame. */ | |
7ab12479 | 884 | |
7f4161e0 | 885 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
44fa5b1e | 886 | FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; |
7ab12479 JB |
887 | |
888 | p->left = o->left; | |
889 | p->top = o->top; | |
890 | p->width = o->width; | |
891 | p->height = o->height; | |
5500c422 GM |
892 | p->desired_matrix = p->current_matrix = 0; |
893 | p->vscroll = 0; | |
894 | bzero (&p->cursor, sizeof (p->cursor)); | |
895 | bzero (&p->last_cursor, sizeof (p->last_cursor)); | |
896 | bzero (&p->phys_cursor, sizeof (p->phys_cursor)); | |
897 | p->phys_cursor_type = -1; | |
898 | p->must_be_updated_p = 0; | |
899 | p->pseudo_window_p = 0; | |
900 | XSETFASTINT (p->window_end_vpos, 0); | |
901 | XSETFASTINT (p->window_end_pos, 0); | |
902 | p->window_end_valid = Qnil; | |
7ab12479 JB |
903 | |
904 | p->next = tem = o->next; | |
265a9e55 | 905 | if (!NILP (tem)) |
7ab12479 JB |
906 | XWINDOW (tem)->prev = replacement; |
907 | ||
908 | p->prev = tem = o->prev; | |
265a9e55 | 909 | if (!NILP (tem)) |
7ab12479 JB |
910 | XWINDOW (tem)->next = replacement; |
911 | ||
912 | p->parent = tem = o->parent; | |
265a9e55 | 913 | if (!NILP (tem)) |
7ab12479 JB |
914 | { |
915 | if (EQ (XWINDOW (tem)->vchild, old)) | |
916 | XWINDOW (tem)->vchild = replacement; | |
917 | if (EQ (XWINDOW (tem)->hchild, old)) | |
918 | XWINDOW (tem)->hchild = replacement; | |
919 | } | |
920 | ||
921 | /*** Here, if replacement is a vertical combination | |
922 | and so is its new parent, we should make replacement's | |
923 | children be children of that parent instead. ***/ | |
924 | } | |
925 | ||
926 | DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 1, "", | |
927 | "Remove WINDOW from the display. Default is selected window.") | |
928 | (window) | |
929 | register Lisp_Object window; | |
543f5fb1 RS |
930 | { |
931 | delete_window (window); | |
932 | ||
933 | if (! NILP (Vwindow_configuration_change_hook) | |
934 | && ! NILP (Vrun_hooks)) | |
935 | call1 (Vrun_hooks, Qwindow_configuration_change_hook); | |
936 | ||
937 | return Qnil; | |
938 | } | |
939 | ||
5e14b1fc | 940 | void |
543f5fb1 RS |
941 | delete_window (window) |
942 | register Lisp_Object window; | |
7ab12479 JB |
943 | { |
944 | register Lisp_Object tem, parent, sib; | |
945 | register struct window *p; | |
946 | register struct window *par; | |
5500c422 | 947 | FRAME_PTR frame; |
7ab12479 | 948 | |
605be8af JB |
949 | /* Because this function is called by other C code on non-leaf |
950 | windows, the CHECK_LIVE_WINDOW macro would choke inappropriately, | |
951 | so we can't decode_window here. */ | |
265a9e55 | 952 | if (NILP (window)) |
7ab12479 JB |
953 | window = selected_window; |
954 | else | |
955 | CHECK_WINDOW (window, 0); | |
7ab12479 | 956 | p = XWINDOW (window); |
605be8af JB |
957 | |
958 | /* It's okay to delete an already-deleted window. */ | |
959 | if (NILP (p->buffer) | |
960 | && NILP (p->hchild) | |
961 | && NILP (p->vchild)) | |
296b535c | 962 | return; |
605be8af | 963 | |
7ab12479 | 964 | parent = p->parent; |
265a9e55 | 965 | if (NILP (parent)) |
7ab12479 JB |
966 | error ("Attempt to delete minibuffer or sole ordinary window"); |
967 | par = XWINDOW (parent); | |
968 | ||
969 | windows_or_buffers_changed++; | |
5500c422 GM |
970 | frame = XFRAME (WINDOW_FRAME (p)); |
971 | FRAME_WINDOW_SIZES_CHANGED (frame) = 1; | |
7ab12479 | 972 | |
605be8af JB |
973 | /* Are we trying to delete any frame's selected window? */ |
974 | { | |
0def0403 | 975 | Lisp_Object frame, pwindow; |
605be8af | 976 | |
0def0403 RS |
977 | /* See if the frame's selected window is either WINDOW |
978 | or any subwindow of it, by finding all that window's parents | |
979 | and comparing each one with WINDOW. */ | |
980 | frame = WINDOW_FRAME (XWINDOW (window)); | |
981 | pwindow = FRAME_SELECTED_WINDOW (XFRAME (frame)); | |
982 | ||
983 | while (!NILP (pwindow)) | |
984 | { | |
985 | if (EQ (window, pwindow)) | |
986 | break; | |
987 | pwindow = XWINDOW (pwindow)->parent; | |
988 | } | |
989 | ||
990 | if (EQ (window, pwindow)) | |
605be8af | 991 | { |
89bca612 RS |
992 | Lisp_Object alternative; |
993 | alternative = Fnext_window (window, Qlambda, Qnil); | |
605be8af JB |
994 | |
995 | /* If we're about to delete the selected window on the | |
996 | selected frame, then we should use Fselect_window to select | |
997 | the new window. On the other hand, if we're about to | |
998 | delete the selected window on any other frame, we shouldn't do | |
999 | anything but set the frame's selected_window slot. */ | |
1000 | if (EQ (window, selected_window)) | |
1001 | Fselect_window (alternative); | |
1002 | else | |
0def0403 | 1003 | FRAME_SELECTED_WINDOW (XFRAME (frame)) = alternative; |
605be8af JB |
1004 | } |
1005 | } | |
7ab12479 JB |
1006 | |
1007 | tem = p->buffer; | |
1008 | /* tem is null for dummy parent windows | |
1009 | (which have inferiors but not any contents themselves) */ | |
265a9e55 | 1010 | if (!NILP (tem)) |
7ab12479 JB |
1011 | { |
1012 | unshow_buffer (p); | |
1013 | unchain_marker (p->pointm); | |
1014 | unchain_marker (p->start); | |
7ab12479 JB |
1015 | } |
1016 | ||
5500c422 GM |
1017 | /* Free window glyph matrices. |
1018 | It is sure that they are allocated again when ADJUST_GLYPHS | |
1019 | is called. */ | |
1020 | free_window_matrices (XWINDOW (FRAME_ROOT_WINDOW (frame))); | |
1021 | ||
7ab12479 | 1022 | tem = p->next; |
265a9e55 | 1023 | if (!NILP (tem)) |
7ab12479 JB |
1024 | XWINDOW (tem)->prev = p->prev; |
1025 | ||
1026 | tem = p->prev; | |
265a9e55 | 1027 | if (!NILP (tem)) |
7ab12479 JB |
1028 | XWINDOW (tem)->next = p->next; |
1029 | ||
1030 | if (EQ (window, par->hchild)) | |
1031 | par->hchild = p->next; | |
1032 | if (EQ (window, par->vchild)) | |
1033 | par->vchild = p->next; | |
1034 | ||
1035 | /* Find one of our siblings to give our space to. */ | |
1036 | sib = p->prev; | |
265a9e55 | 1037 | if (NILP (sib)) |
7ab12479 JB |
1038 | { |
1039 | /* If p gives its space to its next sibling, that sibling needs | |
1040 | to have its top/left side pulled back to where p's is. | |
1041 | set_window_{height,width} will re-position the sibling's | |
1042 | children. */ | |
1043 | sib = p->next; | |
7f4161e0 JB |
1044 | XWINDOW (sib)->top = p->top; |
1045 | XWINDOW (sib)->left = p->left; | |
7ab12479 JB |
1046 | } |
1047 | ||
1048 | /* Stretch that sibling. */ | |
265a9e55 | 1049 | if (!NILP (par->vchild)) |
7ab12479 JB |
1050 | set_window_height (sib, |
1051 | XFASTINT (XWINDOW (sib)->height) + XFASTINT (p->height), | |
1052 | 1); | |
265a9e55 | 1053 | if (!NILP (par->hchild)) |
7ab12479 JB |
1054 | set_window_width (sib, |
1055 | XFASTINT (XWINDOW (sib)->width) + XFASTINT (p->width), | |
1056 | 1); | |
1057 | ||
1058 | /* If parent now has only one child, | |
1059 | put the child into the parent's place. */ | |
7ab12479 | 1060 | tem = par->hchild; |
265a9e55 | 1061 | if (NILP (tem)) |
7ab12479 | 1062 | tem = par->vchild; |
265a9e55 | 1063 | if (NILP (XWINDOW (tem)->next)) |
7ab12479 | 1064 | replace_window (parent, tem); |
605be8af JB |
1065 | |
1066 | /* Since we may be deleting combination windows, we must make sure that | |
1067 | not only p but all its children have been marked as deleted. */ | |
1068 | if (! NILP (p->hchild)) | |
1069 | delete_all_subwindows (XWINDOW (p->hchild)); | |
1070 | else if (! NILP (p->vchild)) | |
1071 | delete_all_subwindows (XWINDOW (p->vchild)); | |
1072 | ||
1073 | /* Mark this window as deleted. */ | |
1074 | p->buffer = p->hchild = p->vchild = Qnil; | |
5500c422 GM |
1075 | |
1076 | /* Adjust glyph matrices. */ | |
1077 | adjust_glyphs (frame); | |
7ab12479 JB |
1078 | } |
1079 | \f | |
7ab12479 | 1080 | |
44fa5b1e | 1081 | extern Lisp_Object next_frame (), prev_frame (); |
7ab12479 | 1082 | |
26f6279d JB |
1083 | /* This comment supplies the doc string for `next-window', |
1084 | for make-docfile to see. We cannot put this in the real DEFUN | |
1085 | due to limits in the Unix cpp. | |
1086 | ||
1087 | DEFUN ("next-window", Ffoo, Sfoo, 0, 3, 0, | |
7ab12479 | 1088 | "Return next window after WINDOW in canonical ordering of windows.\n\ |
d5783c40 JB |
1089 | If omitted, WINDOW defaults to the selected window.\n\ |
1090 | \n\ | |
1091 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
1092 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
1093 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
1094 | minibuffer even if it is active.\n\ | |
1095 | \n\ | |
44fa5b1e JB |
1096 | Several frames may share a single minibuffer; if the minibuffer\n\ |
1097 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 1098 | too. Therefore, `next-window' can be used to iterate through the\n\ |
44fa5b1e JB |
1099 | set of windows even when the minibuffer is on another frame. If the\n\ |
1100 | minibuffer does not count, only windows from WINDOW's frame count.\n\ | |
d5783c40 | 1101 | \n\ |
44fa5b1e JB |
1102 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
1103 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 1104 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 1105 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
1f4c5d09 | 1106 | If ALL-FRAMES is a frame, restrict search to windows on that frame.\n\ |
89bca612 | 1107 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
1108 | \n\ |
1109 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
1110 | `next-window' to iterate through the entire cycle of acceptable\n\ | |
1111 | windows, eventually ending up back at the window you started with.\n\ | |
1112 | `previous-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
1113 | (window, minibuf, all_frames) */ |
1114 | ||
1115 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, | |
1116 | 0) | |
44fa5b1e JB |
1117 | (window, minibuf, all_frames) |
1118 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
1119 | { |
1120 | register Lisp_Object tem; | |
d5783c40 | 1121 | Lisp_Object start_window; |
7ab12479 | 1122 | |
265a9e55 | 1123 | if (NILP (window)) |
7ab12479 JB |
1124 | window = selected_window; |
1125 | else | |
605be8af | 1126 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 1127 | |
d5783c40 JB |
1128 | start_window = window; |
1129 | ||
1130 | /* minibuf == nil may or may not include minibuffers. | |
1131 | Decide if it does. */ | |
265a9e55 | 1132 | if (NILP (minibuf)) |
fbdc1545 RS |
1133 | minibuf = (minibuf_level ? minibuf_window : Qlambda); |
1134 | else if (! EQ (minibuf, Qt)) | |
1135 | minibuf = Qlambda; | |
1136 | /* Now minibuf can be t => count all minibuffer windows, | |
1137 | lambda => count none of them, | |
1138 | or a specific minibuffer window (the active one) to count. */ | |
d5783c40 | 1139 | |
1bb80f72 | 1140 | /* all_frames == nil doesn't specify which frames to include. */ |
44fa5b1e | 1141 | if (NILP (all_frames)) |
fbdc1545 | 1142 | all_frames = (! EQ (minibuf, Qlambda) |
1bb80f72 RS |
1143 | ? (FRAME_MINIBUF_WINDOW |
1144 | (XFRAME | |
1145 | (WINDOW_FRAME | |
1146 | (XWINDOW (window))))) | |
1147 | : Qnil); | |
89bca612 RS |
1148 | else if (EQ (all_frames, Qvisible)) |
1149 | ; | |
f812f9c6 RS |
1150 | else if (XFASTINT (all_frames) == 0) |
1151 | ; | |
1f4c5d09 RS |
1152 | else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window))) |
1153 | /* If all_frames is a frame and window arg isn't on that frame, just | |
1154 | return the first window on the frame. */ | |
1155 | return Fframe_first_window (all_frames); | |
44fa5b1e JB |
1156 | else if (! EQ (all_frames, Qt)) |
1157 | all_frames = Qnil; | |
644b477c RS |
1158 | /* Now all_frames is t meaning search all frames, |
1159 | nil meaning search just current frame, | |
f812f9c6 RS |
1160 | visible meaning search just visible frames, |
1161 | 0 meaning search visible and iconified frames, | |
644b477c | 1162 | or a window, meaning search the frame that window belongs to. */ |
7ab12479 JB |
1163 | |
1164 | /* Do this loop at least once, to get the next window, and perhaps | |
1165 | again, if we hit the minibuffer and that is not acceptable. */ | |
1166 | do | |
1167 | { | |
1168 | /* Find a window that actually has a next one. This loop | |
1169 | climbs up the tree. */ | |
265a9e55 JB |
1170 | while (tem = XWINDOW (window)->next, NILP (tem)) |
1171 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 1172 | window = tem; |
d5783c40 | 1173 | else |
7ab12479 | 1174 | { |
44fa5b1e JB |
1175 | /* We've reached the end of this frame. |
1176 | Which other frames are acceptable? */ | |
1177 | tem = WINDOW_FRAME (XWINDOW (window)); | |
44fa5b1e | 1178 | if (! NILP (all_frames)) |
1bb80f72 RS |
1179 | { |
1180 | Lisp_Object tem1; | |
1181 | ||
1182 | tem1 = tem; | |
1183 | tem = next_frame (tem, all_frames); | |
1184 | /* In the case where the minibuffer is active, | |
1185 | and we include its frame as well as the selected one, | |
1186 | next_frame may get stuck in that frame. | |
1187 | If that happens, go back to the selected frame | |
1188 | so we can complete the cycle. */ | |
1189 | if (EQ (tem, tem1)) | |
74112613 | 1190 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 1191 | } |
44fa5b1e | 1192 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 1193 | |
7ab12479 JB |
1194 | break; |
1195 | } | |
1196 | ||
1197 | window = tem; | |
d5783c40 | 1198 | |
7ab12479 JB |
1199 | /* If we're in a combination window, find its first child and |
1200 | recurse on that. Otherwise, we've found the window we want. */ | |
1201 | while (1) | |
1202 | { | |
265a9e55 | 1203 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 1204 | window = XWINDOW (window)->hchild; |
265a9e55 | 1205 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
1206 | window = XWINDOW (window)->vchild; |
1207 | else break; | |
1208 | } | |
1209 | } | |
5c4d25a6 | 1210 | /* Which windows are acceptable? |
d5783c40 | 1211 | Exit the loop and accept this window if |
fbdc1545 RS |
1212 | this isn't a minibuffer window, |
1213 | or we're accepting all minibuffer windows, | |
1214 | or this is the active minibuffer and we are accepting that one, or | |
d5783c40 | 1215 | we've come all the way around and we're back at the original window. */ |
7ab12479 | 1216 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 1217 | && ! EQ (minibuf, Qt) |
fbdc1545 | 1218 | && ! EQ (minibuf, window) |
7f4161e0 | 1219 | && ! EQ (window, start_window)); |
7ab12479 JB |
1220 | |
1221 | return window; | |
1222 | } | |
1223 | ||
26f6279d JB |
1224 | /* This comment supplies the doc string for `previous-window', |
1225 | for make-docfile to see. We cannot put this in the real DEFUN | |
1226 | due to limits in the Unix cpp. | |
1227 | ||
1228 | DEFUN ("previous-window", Ffoo, Sfoo, 0, 3, 0, | |
5c4d25a6 | 1229 | "Return the window preceding WINDOW in canonical ordering of windows.\n\ |
d5783c40 JB |
1230 | If omitted, WINDOW defaults to the selected window.\n\ |
1231 | \n\ | |
1232 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
1233 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
1234 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
1235 | minibuffer even if it is active.\n\ | |
1236 | \n\ | |
44fa5b1e JB |
1237 | Several frames may share a single minibuffer; if the minibuffer\n\ |
1238 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 1239 | too. Therefore, `previous-window' can be used to iterate through\n\ |
44fa5b1e | 1240 | the set of windows even when the minibuffer is on another frame. If\n\ |
ed160f1f | 1241 | the minibuffer does not count, only windows from WINDOW's frame count\n\ |
d5783c40 | 1242 | \n\ |
44fa5b1e JB |
1243 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
1244 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 1245 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 1246 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
1f4c5d09 | 1247 | If ALL-FRAMES is a frame, restrict search to windows on that frame.\n\ |
89bca612 | 1248 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
1249 | \n\ |
1250 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
1251 | `previous-window' to iterate through the entire cycle of acceptable\n\ | |
1252 | windows, eventually ending up back at the window you started with.\n\ | |
1253 | `next-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
1254 | (window, minibuf, all_frames) */ |
1255 | ||
1256 | ||
1257 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, | |
1258 | 0) | |
44fa5b1e JB |
1259 | (window, minibuf, all_frames) |
1260 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
1261 | { |
1262 | register Lisp_Object tem; | |
d5783c40 | 1263 | Lisp_Object start_window; |
7ab12479 | 1264 | |
265a9e55 | 1265 | if (NILP (window)) |
7ab12479 JB |
1266 | window = selected_window; |
1267 | else | |
605be8af | 1268 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 1269 | |
d5783c40 JB |
1270 | start_window = window; |
1271 | ||
1272 | /* minibuf == nil may or may not include minibuffers. | |
1273 | Decide if it does. */ | |
265a9e55 | 1274 | if (NILP (minibuf)) |
fbdc1545 RS |
1275 | minibuf = (minibuf_level ? minibuf_window : Qlambda); |
1276 | else if (! EQ (minibuf, Qt)) | |
1277 | minibuf = Qlambda; | |
1278 | /* Now minibuf can be t => count all minibuffer windows, | |
1279 | lambda => count none of them, | |
1280 | or a specific minibuffer window (the active one) to count. */ | |
d5783c40 | 1281 | |
44fa5b1e JB |
1282 | /* all_frames == nil doesn't specify which frames to include. |
1283 | Decide which frames it includes. */ | |
1284 | if (NILP (all_frames)) | |
fbdc1545 | 1285 | all_frames = (! EQ (minibuf, Qlambda) |
44fa5b1e JB |
1286 | ? (FRAME_MINIBUF_WINDOW |
1287 | (XFRAME | |
1288 | (WINDOW_FRAME | |
d5783c40 JB |
1289 | (XWINDOW (window))))) |
1290 | : Qnil); | |
89bca612 RS |
1291 | else if (EQ (all_frames, Qvisible)) |
1292 | ; | |
f812f9c6 RS |
1293 | else if (XFASTINT (all_frames) == 0) |
1294 | ; | |
1f4c5d09 RS |
1295 | else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window))) |
1296 | /* If all_frames is a frame and window arg isn't on that frame, just | |
1297 | return the first window on the frame. */ | |
1298 | return Fframe_first_window (all_frames); | |
44fa5b1e JB |
1299 | else if (! EQ (all_frames, Qt)) |
1300 | all_frames = Qnil; | |
644b477c RS |
1301 | /* Now all_frames is t meaning search all frames, |
1302 | nil meaning search just current frame, | |
f812f9c6 RS |
1303 | visible meaning search just visible frames, |
1304 | 0 meaning search visible and iconified frames, | |
644b477c | 1305 | or a window, meaning search the frame that window belongs to. */ |
7ab12479 JB |
1306 | |
1307 | /* Do this loop at least once, to get the previous window, and perhaps | |
1308 | again, if we hit the minibuffer and that is not acceptable. */ | |
1309 | do | |
1310 | { | |
1311 | /* Find a window that actually has a previous one. This loop | |
1312 | climbs up the tree. */ | |
265a9e55 JB |
1313 | while (tem = XWINDOW (window)->prev, NILP (tem)) |
1314 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 1315 | window = tem; |
d5783c40 | 1316 | else |
7ab12479 | 1317 | { |
44fa5b1e JB |
1318 | /* We have found the top window on the frame. |
1319 | Which frames are acceptable? */ | |
1320 | tem = WINDOW_FRAME (XWINDOW (window)); | |
44fa5b1e | 1321 | if (! NILP (all_frames)) |
dbc4e1c1 JB |
1322 | /* It's actually important that we use prev_frame here, |
1323 | rather than next_frame. All the windows acceptable | |
1324 | according to the given parameters should form a ring; | |
1325 | Fnext_window and Fprevious_window should go back and | |
1326 | forth around the ring. If we use next_frame here, | |
1327 | then Fnext_window and Fprevious_window take different | |
1328 | paths through the set of acceptable windows. | |
1329 | window_loop assumes that these `ring' requirement are | |
1330 | met. */ | |
1bb80f72 RS |
1331 | { |
1332 | Lisp_Object tem1; | |
1333 | ||
1334 | tem1 = tem; | |
1335 | tem = prev_frame (tem, all_frames); | |
1336 | /* In the case where the minibuffer is active, | |
1337 | and we include its frame as well as the selected one, | |
1338 | next_frame may get stuck in that frame. | |
1339 | If that happens, go back to the selected frame | |
1340 | so we can complete the cycle. */ | |
1341 | if (EQ (tem, tem1)) | |
74112613 | 1342 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 1343 | } |
644b477c RS |
1344 | /* If this frame has a minibuffer, find that window first, |
1345 | because it is conceptually the last window in that frame. */ | |
5e12e32f JB |
1346 | if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) |
1347 | tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
1348 | else | |
644b477c | 1349 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 1350 | |
7ab12479 JB |
1351 | break; |
1352 | } | |
1353 | ||
1354 | window = tem; | |
1355 | /* If we're in a combination window, find its last child and | |
1356 | recurse on that. Otherwise, we've found the window we want. */ | |
1357 | while (1) | |
1358 | { | |
265a9e55 | 1359 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 1360 | window = XWINDOW (window)->hchild; |
265a9e55 | 1361 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
1362 | window = XWINDOW (window)->vchild; |
1363 | else break; | |
265a9e55 | 1364 | while (tem = XWINDOW (window)->next, !NILP (tem)) |
7ab12479 JB |
1365 | window = tem; |
1366 | } | |
1367 | } | |
5c4d25a6 | 1368 | /* Which windows are acceptable? |
d5783c40 | 1369 | Exit the loop and accept this window if |
fbdc1545 RS |
1370 | this isn't a minibuffer window, |
1371 | or we're accepting all minibuffer windows, | |
1372 | or this is the active minibuffer and we are accepting that one, or | |
d5783c40 | 1373 | we've come all the way around and we're back at the original window. */ |
7ab12479 | 1374 | while (MINI_WINDOW_P (XWINDOW (window)) |
fbdc1545 RS |
1375 | && ! EQ (minibuf, Qt) |
1376 | && ! EQ (minibuf, window) | |
1377 | && ! EQ (window, start_window)); | |
7ab12479 JB |
1378 | |
1379 | return window; | |
1380 | } | |
1381 | ||
62c07cc7 | 1382 | DEFUN ("other-window", Fother_window, Sother_window, 1, 2, "p", |
44fa5b1e JB |
1383 | "Select the ARG'th different window on this frame.\n\ |
1384 | All windows on current frame are arranged in a cyclic order.\n\ | |
7ab12479 JB |
1385 | This command selects the window ARG steps away in that order.\n\ |
1386 | A negative ARG moves in the opposite order. If the optional second\n\ | |
44fa5b1e | 1387 | argument ALL_FRAMES is non-nil, cycle through all frames.") |
413430c5 EN |
1388 | (arg, all_frames) |
1389 | register Lisp_Object arg, all_frames; | |
7ab12479 JB |
1390 | { |
1391 | register int i; | |
1392 | register Lisp_Object w; | |
1393 | ||
413430c5 | 1394 | CHECK_NUMBER (arg, 0); |
7ab12479 | 1395 | w = selected_window; |
413430c5 | 1396 | i = XINT (arg); |
7ab12479 JB |
1397 | |
1398 | while (i > 0) | |
1399 | { | |
44fa5b1e | 1400 | w = Fnext_window (w, Qnil, all_frames); |
7ab12479 JB |
1401 | i--; |
1402 | } | |
1403 | while (i < 0) | |
1404 | { | |
44fa5b1e | 1405 | w = Fprevious_window (w, Qnil, all_frames); |
7ab12479 JB |
1406 | i++; |
1407 | } | |
1408 | Fselect_window (w); | |
1409 | return Qnil; | |
1410 | } | |
1411 | \f | |
1412 | /* Look at all windows, performing an operation specified by TYPE | |
1413 | with argument OBJ. | |
75d8f668 | 1414 | If FRAMES is Qt, look at all frames; |
75d8f668 | 1415 | Qnil, look at just the selected frame; |
89bca612 | 1416 | Qvisible, look at visible frames; |
75d8f668 | 1417 | a frame, just look at windows on that frame. |
7ab12479 JB |
1418 | If MINI is non-zero, perform the operation on minibuffer windows too. |
1419 | */ | |
1420 | ||
1421 | enum window_loop | |
1422 | { | |
1423 | WINDOW_LOOP_UNUSED, | |
1424 | GET_BUFFER_WINDOW, /* Arg is buffer */ | |
1425 | GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
1426 | DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
1427 | DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
1428 | GET_LARGEST_WINDOW, | |
3f8ab7bd RS |
1429 | UNSHOW_BUFFER, /* Arg is buffer */ |
1430 | CHECK_ALL_WINDOWS | |
7ab12479 JB |
1431 | }; |
1432 | ||
1433 | static Lisp_Object | |
44fa5b1e | 1434 | window_loop (type, obj, mini, frames) |
7ab12479 | 1435 | enum window_loop type; |
44fa5b1e | 1436 | register Lisp_Object obj, frames; |
7ab12479 JB |
1437 | int mini; |
1438 | { | |
1439 | register Lisp_Object w; | |
1440 | register Lisp_Object best_window; | |
1441 | register Lisp_Object next_window; | |
4b206065 | 1442 | register Lisp_Object last_window; |
44fa5b1e | 1443 | FRAME_PTR frame; |
89bca612 RS |
1444 | Lisp_Object frame_arg; |
1445 | frame_arg = Qt; | |
44fa5b1e JB |
1446 | |
1447 | /* If we're only looping through windows on a particular frame, | |
1448 | frame points to that frame. If we're looping through windows | |
1449 | on all frames, frame is 0. */ | |
1450 | if (FRAMEP (frames)) | |
1451 | frame = XFRAME (frames); | |
1452 | else if (NILP (frames)) | |
1453 | frame = selected_frame; | |
7ab12479 | 1454 | else |
44fa5b1e | 1455 | frame = 0; |
89bca612 RS |
1456 | if (frame) |
1457 | frame_arg = Qlambda; | |
f812f9c6 RS |
1458 | else if (XFASTINT (frames) == 0) |
1459 | frame_arg = frames; | |
89bca612 RS |
1460 | else if (EQ (frames, Qvisible)) |
1461 | frame_arg = frames; | |
7ab12479 | 1462 | |
89bca612 RS |
1463 | /* frame_arg is Qlambda to stick to one frame, |
1464 | Qvisible to consider all visible frames, | |
1465 | or Qt otherwise. */ | |
1466 | ||
7ab12479 | 1467 | /* Pick a window to start with. */ |
017b2bad | 1468 | if (WINDOWP (obj)) |
4b206065 | 1469 | w = obj; |
44fa5b1e | 1470 | else if (frame) |
4b206065 | 1471 | w = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 1472 | else |
4b206065 JB |
1473 | w = FRAME_SELECTED_WINDOW (selected_frame); |
1474 | ||
1475 | /* Figure out the last window we're going to mess with. Since | |
1476 | Fnext_window, given the same options, is guaranteed to go in a | |
1477 | ring, we can just use Fprevious_window to find the last one. | |
1478 | ||
1479 | We can't just wait until we hit the first window again, because | |
1480 | it might be deleted. */ | |
1481 | ||
89bca612 | 1482 | last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1483 | |
7ab12479 | 1484 | best_window = Qnil; |
4b206065 | 1485 | for (;;) |
7ab12479 JB |
1486 | { |
1487 | /* Pick the next window now, since some operations will delete | |
1488 | the current window. */ | |
89bca612 | 1489 | next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1490 | |
d29a5631 RS |
1491 | /* Note that we do not pay attention here to whether |
1492 | the frame is visible, since Fnext_window skips non-visible frames | |
1493 | if that is desired, under the control of frame_arg. */ | |
75d8f668 | 1494 | if (! MINI_WINDOW_P (XWINDOW (w)) |
65a04b96 RS |
1495 | /* For UNSHOW_BUFFER, we must always consider all windows. */ |
1496 | || type == UNSHOW_BUFFER | |
7ab12479 JB |
1497 | || (mini && minibuf_level > 0)) |
1498 | switch (type) | |
1499 | { | |
1500 | case GET_BUFFER_WINDOW: | |
5c204627 RS |
1501 | if (XBUFFER (XWINDOW (w)->buffer) == XBUFFER (obj) |
1502 | /* Don't find any minibuffer window | |
1503 | except the one that is currently in use. */ | |
1504 | && (MINI_WINDOW_P (XWINDOW (w)) | |
1505 | ? EQ (w, minibuf_window) : 1)) | |
7ab12479 JB |
1506 | return w; |
1507 | break; | |
1508 | ||
1509 | case GET_LRU_WINDOW: | |
1510 | /* t as arg means consider only full-width windows */ | |
111e5992 | 1511 | if (!NILP (obj) && !WINDOW_FULL_WIDTH_P (XWINDOW (w))) |
7ab12479 | 1512 | break; |
7ab12479 JB |
1513 | /* Ignore dedicated windows and minibuffers. */ |
1514 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1515 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 | 1516 | break; |
265a9e55 | 1517 | if (NILP (best_window) |
7ab12479 JB |
1518 | || (XFASTINT (XWINDOW (best_window)->use_time) |
1519 | > XFASTINT (XWINDOW (w)->use_time))) | |
1520 | best_window = w; | |
1521 | break; | |
1522 | ||
1523 | case DELETE_OTHER_WINDOWS: | |
1524 | if (XWINDOW (w) != XWINDOW (obj)) | |
1525 | Fdelete_window (w); | |
1526 | break; | |
1527 | ||
1528 | case DELETE_BUFFER_WINDOWS: | |
1529 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1530 | { | |
3548e138 RS |
1531 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
1532 | ||
1533 | /* If this window is dedicated, and in a frame of its own, | |
1534 | kill the frame. */ | |
1535 | if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
1536 | && !NILP (XWINDOW (w)->dedicated) | |
1537 | && other_visible_frames (f)) | |
7ab12479 | 1538 | { |
3548e138 RS |
1539 | /* Skip the other windows on this frame. |
1540 | There might be one, the minibuffer! */ | |
1541 | if (! EQ (w, last_window)) | |
1542 | while (f == XFRAME (WINDOW_FRAME (XWINDOW (next_window)))) | |
1543 | { | |
1544 | /* As we go, check for the end of the loop. | |
1545 | We mustn't start going around a second time. */ | |
1546 | if (EQ (next_window, last_window)) | |
1547 | { | |
1548 | last_window = w; | |
1549 | break; | |
1550 | } | |
1551 | next_window = Fnext_window (next_window, | |
1552 | mini ? Qt : Qnil, | |
1553 | frame_arg); | |
1554 | } | |
1555 | /* Now we can safely delete the frame. */ | |
1556 | Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil); | |
7ab12479 JB |
1557 | } |
1558 | else | |
3548e138 RS |
1559 | /* If we're deleting the buffer displayed in the only window |
1560 | on the frame, find a new buffer to display there. */ | |
1561 | if (NILP (XWINDOW (w)->parent)) | |
1562 | { | |
1563 | Lisp_Object new_buffer; | |
b7354ddf RS |
1564 | new_buffer = Fother_buffer (obj, Qnil, |
1565 | XWINDOW (w)->frame); | |
3548e138 RS |
1566 | if (NILP (new_buffer)) |
1567 | new_buffer | |
1568 | = Fget_buffer_create (build_string ("*scratch*")); | |
1569 | Fset_window_buffer (w, new_buffer); | |
1570 | if (EQ (w, selected_window)) | |
1571 | Fset_buffer (XWINDOW (w)->buffer); | |
1572 | } | |
1573 | else | |
1574 | Fdelete_window (w); | |
7ab12479 JB |
1575 | } |
1576 | break; | |
1577 | ||
1578 | case GET_LARGEST_WINDOW: | |
7ab12479 JB |
1579 | /* Ignore dedicated windows and minibuffers. */ |
1580 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1581 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 JB |
1582 | break; |
1583 | { | |
1584 | struct window *best_window_ptr = XWINDOW (best_window); | |
1585 | struct window *w_ptr = XWINDOW (w); | |
6b54027b RS |
1586 | if (NILP (best_window) |
1587 | || (XFASTINT (w_ptr->height) * XFASTINT (w_ptr->width) | |
1588 | > (XFASTINT (best_window_ptr->height) | |
1589 | * XFASTINT (best_window_ptr->width)))) | |
7ab12479 JB |
1590 | best_window = w; |
1591 | } | |
1592 | break; | |
1593 | ||
1594 | case UNSHOW_BUFFER: | |
1595 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1596 | { | |
1597 | /* Find another buffer to show in this window. */ | |
12cae7c0 | 1598 | Lisp_Object another_buffer; |
38ab08d1 | 1599 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
b7354ddf | 1600 | another_buffer = Fother_buffer (obj, Qnil, XWINDOW (w)->frame); |
265a9e55 | 1601 | if (NILP (another_buffer)) |
7ab12479 JB |
1602 | another_buffer |
1603 | = Fget_buffer_create (build_string ("*scratch*")); | |
38ab08d1 RS |
1604 | /* If this window is dedicated, and in a frame of its own, |
1605 | kill the frame. */ | |
1606 | if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
596122a7 | 1607 | && !NILP (XWINDOW (w)->dedicated) |
38ab08d1 | 1608 | && other_visible_frames (f)) |
45945a7b RS |
1609 | { |
1610 | /* Skip the other windows on this frame. | |
1611 | There might be one, the minibuffer! */ | |
1612 | if (! EQ (w, last_window)) | |
1613 | while (f == XFRAME (WINDOW_FRAME (XWINDOW (next_window)))) | |
1614 | { | |
1615 | /* As we go, check for the end of the loop. | |
1616 | We mustn't start going around a second time. */ | |
1617 | if (EQ (next_window, last_window)) | |
1618 | { | |
1619 | last_window = w; | |
1620 | break; | |
1621 | } | |
1622 | next_window = Fnext_window (next_window, | |
1623 | mini ? Qt : Qnil, | |
1624 | frame_arg); | |
1625 | } | |
1626 | /* Now we can safely delete the frame. */ | |
1627 | Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil); | |
1628 | } | |
38ab08d1 | 1629 | else |
38ab08d1 RS |
1630 | { |
1631 | /* Otherwise show a different buffer in the window. */ | |
1632 | XWINDOW (w)->dedicated = Qnil; | |
1633 | Fset_window_buffer (w, another_buffer); | |
1634 | if (EQ (w, selected_window)) | |
1635 | Fset_buffer (XWINDOW (w)->buffer); | |
1636 | } | |
7ab12479 JB |
1637 | } |
1638 | break; | |
3f8ab7bd RS |
1639 | |
1640 | /* Check for a window that has a killed buffer. */ | |
1641 | case CHECK_ALL_WINDOWS: | |
1642 | if (! NILP (XWINDOW (w)->buffer) | |
1643 | && NILP (XBUFFER (XWINDOW (w)->buffer)->name)) | |
1644 | abort (); | |
7ab12479 | 1645 | } |
4b206065 JB |
1646 | |
1647 | if (EQ (w, last_window)) | |
1648 | break; | |
1649 | ||
7ab12479 JB |
1650 | w = next_window; |
1651 | } | |
7ab12479 JB |
1652 | |
1653 | return best_window; | |
37962e60 | 1654 | } |
605be8af | 1655 | |
3f8ab7bd RS |
1656 | /* Used for debugging. Abort if any window has a dead buffer. */ |
1657 | ||
1658 | check_all_windows () | |
1659 | { | |
1660 | window_loop (CHECK_ALL_WINDOWS, Qnil, 1, Qt); | |
1661 | } | |
1662 | ||
7ab12479 JB |
1663 | DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0, |
1664 | "Return the window least recently selected or used for display.\n\ | |
89bca612 | 1665 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1666 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1667 | If FRAME is t, search all frames.\n\ |
1668 | If FRAME is nil, search only the selected frame.\n\ | |
1669 | If FRAME is a frame, search only that frame.") | |
1670 | (frame) | |
1671 | Lisp_Object frame; | |
7ab12479 JB |
1672 | { |
1673 | register Lisp_Object w; | |
1674 | /* First try for a window that is full-width */ | |
89bca612 | 1675 | w = window_loop (GET_LRU_WINDOW, Qt, 0, frame); |
265a9e55 | 1676 | if (!NILP (w) && !EQ (w, selected_window)) |
7ab12479 JB |
1677 | return w; |
1678 | /* If none of them, try the rest */ | |
89bca612 | 1679 | return window_loop (GET_LRU_WINDOW, Qnil, 0, frame); |
7ab12479 JB |
1680 | } |
1681 | ||
1682 | DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 1, 0, | |
1683 | "Return the largest window in area.\n\ | |
89bca612 | 1684 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1685 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1686 | If FRAME is t, search all frames.\n\ |
1687 | If FRAME is nil, search only the selected frame.\n\ | |
1688 | If FRAME is a frame, search only that frame.") | |
44fa5b1e JB |
1689 | (frame) |
1690 | Lisp_Object frame; | |
7ab12479 JB |
1691 | { |
1692 | return window_loop (GET_LARGEST_WINDOW, Qnil, 0, | |
44fa5b1e | 1693 | frame); |
7ab12479 JB |
1694 | } |
1695 | ||
1696 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 2, 0, | |
1697 | "Return a window currently displaying BUFFER, or nil if none.\n\ | |
89bca612 | 1698 | If optional argument FRAME is `visible', search all visible frames.\n\ |
f812f9c6 | 1699 | If optional argument FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 | 1700 | If FRAME is t, search all frames.\n\ |
1bc981d2 | 1701 | If FRAME is nil, search only the selected frame.\n\ |
89bca612 | 1702 | If FRAME is a frame, search only that frame.") |
44fa5b1e JB |
1703 | (buffer, frame) |
1704 | Lisp_Object buffer, frame; | |
7ab12479 JB |
1705 | { |
1706 | buffer = Fget_buffer (buffer); | |
017b2bad | 1707 | if (BUFFERP (buffer)) |
44fa5b1e | 1708 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame); |
7ab12479 JB |
1709 | else |
1710 | return Qnil; | |
1711 | } | |
1712 | ||
1713 | DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows, | |
1714 | 0, 1, "", | |
44fa5b1e | 1715 | "Make WINDOW (or the selected window) fill its frame.\n\ |
f16a1ed3 RS |
1716 | Only the frame WINDOW is on is affected.\n\ |
1717 | This function tries to reduce display jumps\n\ | |
1718 | by keeping the text previously visible in WINDOW\n\ | |
1719 | in the same place on the frame. Doing this depends on\n\ | |
1720 | the value of (window-start WINDOW), so if calling this function\n\ | |
1721 | in a program gives strange scrolling, make sure the window-start\n\ | |
1722 | value is reasonable when this function is called.") | |
7ab12479 JB |
1723 | (window) |
1724 | Lisp_Object window; | |
1725 | { | |
1726 | struct window *w; | |
00d3d838 | 1727 | int startpos; |
7ab12479 JB |
1728 | int top; |
1729 | ||
265a9e55 | 1730 | if (NILP (window)) |
7ab12479 JB |
1731 | window = selected_window; |
1732 | else | |
605be8af | 1733 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1734 | |
1735 | w = XWINDOW (window); | |
a2b38b3c | 1736 | |
00d3d838 | 1737 | startpos = marker_position (w->start); |
5500c422 | 1738 | top = XFASTINT (w->top) - FRAME_TOP_MARGIN (XFRAME (WINDOW_FRAME (w))); |
7ab12479 | 1739 | |
a2b38b3c RS |
1740 | if (MINI_WINDOW_P (w) && top > 0) |
1741 | error ("Can't expand minibuffer to full frame"); | |
1742 | ||
70728a80 | 1743 | window_loop (DELETE_OTHER_WINDOWS, window, 0, WINDOW_FRAME (w)); |
7ab12479 | 1744 | |
00d3d838 KH |
1745 | /* Try to minimize scrolling, by setting the window start to the point |
1746 | will cause the text at the old window start to be at the same place | |
1747 | on the frame. But don't try to do this if the window start is | |
1748 | outside the visible portion (as might happen when the display is | |
1749 | not current, due to typeahead). */ | |
1750 | if (startpos >= BUF_BEGV (XBUFFER (w->buffer)) | |
1751 | && startpos <= BUF_ZV (XBUFFER (w->buffer))) | |
1752 | { | |
1753 | struct position pos; | |
1754 | struct buffer *obuf = current_buffer; | |
1755 | ||
1756 | Fset_buffer (w->buffer); | |
1757 | /* This computation used to temporarily move point, but that can | |
1758 | have unwanted side effects due to text properties. */ | |
0383eb57 | 1759 | pos = *vmotion (startpos, -top, w); |
4d047f50 | 1760 | |
b73ea88e RS |
1761 | set_marker_both (w->start, w->buffer, pos.bufpos, pos.bytepos); |
1762 | w->start_at_line_beg = ((pos.bytepos == BEGV_BYTE | |
1763 | || FETCH_BYTE (pos.bytepos - 1) == '\n') ? Qt | |
00d3d838 | 1764 | : Qnil); |
80622eec RS |
1765 | /* We need to do this, so that the window-scroll-functions |
1766 | get called. */ | |
4d047f50 | 1767 | w->optional_new_start = Qt; |
00d3d838 KH |
1768 | |
1769 | set_buffer_internal (obuf); | |
1770 | } | |
5500c422 | 1771 | |
7ab12479 JB |
1772 | return Qnil; |
1773 | } | |
1774 | ||
1775 | DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on, | |
3cbbb729 | 1776 | 1, 2, "bDelete windows on (buffer): ", |
26f6279d JB |
1777 | "Delete all windows showing BUFFER.\n\ |
1778 | Optional second argument FRAME controls which frames are affected.\n\ | |
c520265e RS |
1779 | If optional argument FRAME is `visible', search all visible frames.\n\ |
1780 | If FRAME is 0, search all visible and iconified frames.\n\ | |
1781 | If FRAME is nil, search all frames.\n\ | |
1782 | If FRAME is t, search only the selected frame.\n\ | |
1783 | If FRAME is a frame, search only that frame.") | |
26f6279d JB |
1784 | (buffer, frame) |
1785 | Lisp_Object buffer, frame; | |
7ab12479 | 1786 | { |
26f6279d JB |
1787 | /* FRAME uses t and nil to mean the opposite of what window_loop |
1788 | expects. */ | |
c520265e RS |
1789 | if (NILP (frame)) |
1790 | frame = Qt; | |
1791 | else if (EQ (frame, Qt)) | |
1792 | frame = Qnil; | |
26f6279d | 1793 | |
265a9e55 | 1794 | if (!NILP (buffer)) |
7ab12479 JB |
1795 | { |
1796 | buffer = Fget_buffer (buffer); | |
1797 | CHECK_BUFFER (buffer, 0); | |
26f6279d | 1798 | window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame); |
7ab12479 | 1799 | } |
5500c422 | 1800 | |
7ab12479 JB |
1801 | return Qnil; |
1802 | } | |
1803 | ||
1804 | DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, | |
1805 | Sreplace_buffer_in_windows, | |
1806 | 1, 1, "bReplace buffer in windows: ", | |
1807 | "Replace BUFFER with some other buffer in all windows showing it.") | |
1808 | (buffer) | |
1809 | Lisp_Object buffer; | |
1810 | { | |
265a9e55 | 1811 | if (!NILP (buffer)) |
7ab12479 JB |
1812 | { |
1813 | buffer = Fget_buffer (buffer); | |
1814 | CHECK_BUFFER (buffer, 0); | |
1815 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1816 | } | |
1817 | return Qnil; | |
1818 | } | |
ff58478b RS |
1819 | |
1820 | /* Replace BUFFER with some other buffer in all windows | |
1821 | of all frames, even those on other keyboards. */ | |
1822 | ||
1823 | void | |
1824 | replace_buffer_in_all_windows (buffer) | |
1825 | Lisp_Object buffer; | |
1826 | { | |
27abb84f | 1827 | #ifdef MULTI_KBOARD |
ff58478b RS |
1828 | Lisp_Object tail, frame; |
1829 | ||
ff58478b RS |
1830 | /* A single call to window_loop won't do the job |
1831 | because it only considers frames on the current keyboard. | |
1832 | So loop manually over frames, and handle each one. */ | |
1833 | FOR_EACH_FRAME (tail, frame) | |
db7f721d | 1834 | window_loop (UNSHOW_BUFFER, buffer, 1, frame); |
ff58478b | 1835 | #else |
db7f721d | 1836 | window_loop (UNSHOW_BUFFER, buffer, 1, Qt); |
ff58478b RS |
1837 | #endif |
1838 | } | |
7ab12479 JB |
1839 | \f |
1840 | /* Set the height of WINDOW and all its inferiors. */ | |
a481b3ea JB |
1841 | |
1842 | /* The smallest acceptable dimensions for a window. Anything smaller | |
1843 | might crash Emacs. */ | |
5500c422 | 1844 | |
a481b3ea JB |
1845 | #define MIN_SAFE_WINDOW_WIDTH (2) |
1846 | #define MIN_SAFE_WINDOW_HEIGHT (2) | |
1847 | ||
1848 | /* Make sure that window_min_height and window_min_width are | |
1849 | not too small; if they are, set them to safe minima. */ | |
1850 | ||
1851 | static void | |
1852 | check_min_window_sizes () | |
1853 | { | |
1854 | /* Smaller values might permit a crash. */ | |
1855 | if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
1856 | window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
1857 | if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
1858 | window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
1859 | } | |
1860 | ||
1861 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the | |
1862 | minimum allowable size. */ | |
5500c422 | 1863 | |
605be8af | 1864 | void |
a481b3ea | 1865 | check_frame_size (frame, rows, cols) |
605be8af JB |
1866 | FRAME_PTR frame; |
1867 | int *rows, *cols; | |
a481b3ea | 1868 | { |
628df3bf | 1869 | /* For height, we have to see: |
37962e60 | 1870 | whether the frame has a minibuffer, |
628df3bf JB |
1871 | whether it wants a mode line, and |
1872 | whether it has a menu bar. */ | |
a481b3ea | 1873 | int min_height = |
79f92720 JB |
1874 | (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 |
1875 | : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
a481b3ea | 1876 | : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); |
5500c422 GM |
1877 | |
1878 | if (FRAME_TOP_MARGIN (frame) > 0) | |
1879 | min_height += FRAME_TOP_MARGIN (frame); | |
a481b3ea JB |
1880 | |
1881 | if (*rows < min_height) | |
1882 | *rows = min_height; | |
1883 | if (*cols < MIN_SAFE_WINDOW_WIDTH) | |
1884 | *cols = MIN_SAFE_WINDOW_WIDTH; | |
1885 | } | |
1886 | ||
5500c422 GM |
1887 | /* Normally the window is deleted if it gets too small. nodelete |
1888 | nonzero means do not do this. (The caller should check later and | |
1889 | do so if appropriate) */ | |
7ab12479 | 1890 | |
5e14b1fc | 1891 | void |
7ab12479 JB |
1892 | set_window_height (window, height, nodelete) |
1893 | Lisp_Object window; | |
1894 | int height; | |
1895 | int nodelete; | |
1896 | { | |
1897 | register struct window *w = XWINDOW (window); | |
1898 | register struct window *c; | |
1899 | int oheight = XFASTINT (w->height); | |
1900 | int top, pos, lastbot, opos, lastobot; | |
1901 | Lisp_Object child; | |
1902 | ||
a481b3ea JB |
1903 | check_min_window_sizes (); |
1904 | ||
7ab12479 | 1905 | if (!nodelete |
265a9e55 | 1906 | && ! NILP (w->parent) |
c6b530ed RS |
1907 | && (MINI_WINDOW_P (w) |
1908 | ? height < 1 | |
1909 | : height < window_min_height)) | |
7ab12479 | 1910 | { |
543f5fb1 | 1911 | delete_window (window); |
7ab12479 JB |
1912 | return; |
1913 | } | |
1914 | ||
d834a2e9 | 1915 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 1916 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 1917 | windows_or_buffers_changed++; |
29aeee73 RS |
1918 | FRAME_WINDOW_SIZES_CHANGED (XFRAME (WINDOW_FRAME (w))) = 1; |
1919 | ||
d834a2e9 | 1920 | XSETFASTINT (w->height, height); |
265a9e55 | 1921 | if (!NILP (w->hchild)) |
7ab12479 | 1922 | { |
265a9e55 | 1923 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1924 | { |
1925 | XWINDOW (child)->top = w->top; | |
1926 | set_window_height (child, height, nodelete); | |
1927 | } | |
1928 | } | |
265a9e55 | 1929 | else if (!NILP (w->vchild)) |
7ab12479 JB |
1930 | { |
1931 | lastbot = top = XFASTINT (w->top); | |
1932 | lastobot = 0; | |
265a9e55 | 1933 | for (child = w->vchild; !NILP (child); child = c->next) |
7ab12479 JB |
1934 | { |
1935 | c = XWINDOW (child); | |
1936 | ||
1937 | opos = lastobot + XFASTINT (c->height); | |
1938 | ||
d834a2e9 | 1939 | XSETFASTINT (c->top, lastbot); |
7ab12479 JB |
1940 | |
1941 | pos = (((opos * height) << 1) + oheight) / (oheight << 1); | |
1942 | ||
1943 | /* Avoid confusion: inhibit deletion of child if becomes too small */ | |
1944 | set_window_height (child, pos + top - lastbot, 1); | |
1945 | ||
1946 | /* Now advance child to next window, | |
1947 | and set lastbot if child was not just deleted. */ | |
1948 | lastbot = pos + top; | |
1949 | lastobot = opos; | |
1950 | } | |
1951 | /* Now delete any children that became too small. */ | |
1952 | if (!nodelete) | |
265a9e55 | 1953 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1954 | { |
1955 | set_window_height (child, XINT (XWINDOW (child)->height), 0); | |
1956 | } | |
1957 | } | |
1958 | } | |
1959 | ||
1960 | /* Recursively set width of WINDOW and its inferiors. */ | |
1961 | ||
5e14b1fc | 1962 | void |
7ab12479 JB |
1963 | set_window_width (window, width, nodelete) |
1964 | Lisp_Object window; | |
1965 | int width; | |
1966 | int nodelete; | |
1967 | { | |
1968 | register struct window *w = XWINDOW (window); | |
1969 | register struct window *c; | |
1970 | int owidth = XFASTINT (w->width); | |
1971 | int left, pos, lastright, opos, lastoright; | |
1972 | Lisp_Object child; | |
1973 | ||
abdced83 | 1974 | if (!nodelete && width < window_min_width && !NILP (w->parent)) |
7ab12479 | 1975 | { |
543f5fb1 | 1976 | delete_window (window); |
7ab12479 JB |
1977 | return; |
1978 | } | |
1979 | ||
d834a2e9 | 1980 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 1981 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 1982 | windows_or_buffers_changed++; |
29aeee73 RS |
1983 | FRAME_WINDOW_SIZES_CHANGED (XFRAME (WINDOW_FRAME (w))) = 1; |
1984 | ||
d834a2e9 | 1985 | XSETFASTINT (w->width, width); |
265a9e55 | 1986 | if (!NILP (w->vchild)) |
7ab12479 | 1987 | { |
265a9e55 | 1988 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1989 | { |
1990 | XWINDOW (child)->left = w->left; | |
1991 | set_window_width (child, width, nodelete); | |
1992 | } | |
1993 | } | |
265a9e55 | 1994 | else if (!NILP (w->hchild)) |
7ab12479 JB |
1995 | { |
1996 | lastright = left = XFASTINT (w->left); | |
1997 | lastoright = 0; | |
265a9e55 | 1998 | for (child = w->hchild; !NILP (child); child = c->next) |
7ab12479 JB |
1999 | { |
2000 | c = XWINDOW (child); | |
2001 | ||
2002 | opos = lastoright + XFASTINT (c->width); | |
2003 | ||
d834a2e9 | 2004 | XSETFASTINT (c->left, lastright); |
7ab12479 JB |
2005 | |
2006 | pos = (((opos * width) << 1) + owidth) / (owidth << 1); | |
2007 | ||
2008 | /* Inhibit deletion for becoming too small */ | |
2009 | set_window_width (child, pos + left - lastright, 1); | |
2010 | ||
2011 | /* Now advance child to next window, | |
2012 | and set lastright if child was not just deleted. */ | |
2013 | lastright = pos + left, lastoright = opos; | |
2014 | } | |
2015 | /* Delete children that became too small */ | |
2016 | if (!nodelete) | |
265a9e55 | 2017 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
2018 | { |
2019 | set_window_width (child, XINT (XWINDOW (child)->width), 0); | |
2020 | } | |
2021 | } | |
2022 | } | |
2023 | \f | |
1d8d96fa | 2024 | int window_select_count; |
7ab12479 | 2025 | |
5b03d3c0 RS |
2026 | Lisp_Object |
2027 | Fset_window_buffer_unwind (obuf) | |
2028 | Lisp_Object obuf; | |
2029 | { | |
2030 | Fset_buffer (obuf); | |
2031 | return Qnil; | |
2032 | } | |
2033 | ||
7ab12479 | 2034 | |
5500c422 GM |
2035 | /* Make WINDOW display BUFFER as its contents. RUN_HOOKS_P non-zero |
2036 | means it's allowed to run hooks. See make_frame for a case where | |
2037 | it's not allowed. */ | |
7ab12479 | 2038 | |
5500c422 GM |
2039 | void |
2040 | set_window_buffer (window, buffer, run_hooks_p) | |
2041 | Lisp_Object window, buffer; | |
2042 | int run_hooks_p; | |
2043 | { | |
2044 | struct window *w = XWINDOW (window); | |
2045 | struct buffer *b = XBUFFER (buffer); | |
2046 | int count = specpdl_ptr - specpdl; | |
7ab12479 JB |
2047 | |
2048 | w->buffer = buffer; | |
86e48436 RS |
2049 | |
2050 | if (EQ (window, selected_window)) | |
5500c422 | 2051 | b->last_selected_window = window; |
beb4e312 RS |
2052 | |
2053 | /* Update time stamps of buffer display. */ | |
5500c422 GM |
2054 | if (INTEGERP (b->display_count)) |
2055 | XSETINT (b->display_count, XINT (b->display_count) + 1); | |
2056 | b->display_time = Fcurrent_time (); | |
86e48436 | 2057 | |
d834a2e9 | 2058 | XSETFASTINT (w->window_end_pos, 0); |
5500c422 GM |
2059 | XSETFASTINT (w->window_end_vpos, 0); |
2060 | bzero (&w->last_cursor, sizeof w->last_cursor); | |
5a41ab94 | 2061 | w->window_end_valid = Qnil; |
dba06815 | 2062 | XSETFASTINT (w->hscroll, 0); |
5500c422 | 2063 | set_marker_both (w->pointm, buffer, BUF_PT (b), BUF_PT_BYTE (b)); |
7ab12479 | 2064 | set_marker_restricted (w->start, |
5500c422 | 2065 | make_number (b->last_window_start), |
7ab12479 JB |
2066 | buffer); |
2067 | w->start_at_line_beg = Qnil; | |
e36ab06b | 2068 | w->force_start = Qnil; |
d834a2e9 | 2069 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 2070 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 2071 | windows_or_buffers_changed++; |
5b03d3c0 RS |
2072 | |
2073 | /* We must select BUFFER for running the window-scroll-functions. | |
2074 | If WINDOW is selected, switch permanently. | |
2075 | Otherwise, switch but go back to the ambient buffer afterward. */ | |
7ab12479 JB |
2076 | if (EQ (window, selected_window)) |
2077 | Fset_buffer (buffer); | |
5b03d3c0 RS |
2078 | /* We can't check ! NILP (Vwindow_scroll_functions) here |
2079 | because that might itself be a local variable. */ | |
2080 | else if (window_initialized) | |
2081 | { | |
2082 | record_unwind_protect (Fset_window_buffer_unwind, Fcurrent_buffer ()); | |
2083 | Fset_buffer (buffer); | |
2084 | } | |
2085 | ||
5500c422 GM |
2086 | /* Set left and right marginal area width from buffer. */ |
2087 | Fset_window_margins (b->left_margin_width, b->right_margin_width, | |
2088 | window); | |
7ab12479 | 2089 | |
5500c422 GM |
2090 | if (run_hooks_p) |
2091 | { | |
2092 | if (! NILP (Vwindow_scroll_functions)) | |
2093 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
2094 | Fmarker_position (w->start)); | |
2095 | ||
2096 | if (! NILP (Vwindow_configuration_change_hook) | |
2097 | && ! NILP (Vrun_hooks)) | |
2098 | call1 (Vrun_hooks, Qwindow_configuration_change_hook); | |
2099 | } | |
543f5fb1 | 2100 | |
5b03d3c0 | 2101 | unbind_to (count, Qnil); |
5500c422 | 2102 | } |
5b03d3c0 | 2103 | |
5500c422 GM |
2104 | |
2105 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0, | |
2106 | "Make WINDOW display BUFFER as its contents.\n\ | |
2107 | BUFFER can be a buffer or buffer name.") | |
2108 | (window, buffer) | |
2109 | register Lisp_Object window, buffer; | |
2110 | { | |
2111 | register Lisp_Object tem; | |
2112 | register struct window *w = decode_window (window); | |
2113 | struct buffer *b; | |
2114 | ||
2115 | buffer = Fget_buffer (buffer); | |
2116 | CHECK_BUFFER (buffer, 1); | |
2117 | ||
2118 | if (NILP (XBUFFER (buffer)->name)) | |
2119 | error ("Attempt to display deleted buffer"); | |
2120 | ||
2121 | tem = w->buffer; | |
2122 | if (NILP (tem)) | |
2123 | error ("Window is deleted"); | |
2124 | else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
2125 | is first being set up. */ | |
2126 | { | |
2127 | if (!NILP (w->dedicated) && !EQ (tem, buffer)) | |
2128 | error ("Window is dedicated to `%s'", | |
2129 | XSTRING (XBUFFER (tem)->name)->data); | |
2130 | ||
2131 | unshow_buffer (w); | |
2132 | } | |
2133 | ||
2134 | set_window_buffer (window, buffer, 1); | |
7ab12479 JB |
2135 | return Qnil; |
2136 | } | |
2137 | ||
2138 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0, | |
2139 | "Select WINDOW. Most editing will apply to WINDOW's buffer.\n\ | |
beb4e312 RS |
2140 | If WINDOW is not already selected, also make WINDOW's buffer current.\n\ |
2141 | Note that the main editor command loop\n\ | |
2142 | selects the buffer of the selected window before each command.") | |
7ab12479 JB |
2143 | (window) |
2144 | register Lisp_Object window; | |
b7354ddf RS |
2145 | { |
2146 | return select_window_1 (window, 1); | |
2147 | } | |
2148 | \f | |
2149 | static Lisp_Object | |
2150 | select_window_1 (window, recordflag) | |
2151 | register Lisp_Object window; | |
2152 | int recordflag; | |
7ab12479 JB |
2153 | { |
2154 | register struct window *w; | |
2155 | register struct window *ow = XWINDOW (selected_window); | |
2156 | ||
605be8af | 2157 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2158 | |
2159 | w = XWINDOW (window); | |
2160 | ||
265a9e55 | 2161 | if (NILP (w->buffer)) |
7ab12479 JB |
2162 | error ("Trying to select deleted window or non-leaf window"); |
2163 | ||
d834a2e9 | 2164 | XSETFASTINT (w->use_time, ++window_select_count); |
7ab12479 JB |
2165 | if (EQ (window, selected_window)) |
2166 | return window; | |
2167 | ||
596ae0cf RS |
2168 | if (! NILP (ow->buffer)) |
2169 | set_marker_both (ow->pointm, ow->buffer, | |
2170 | BUF_PT (XBUFFER (ow->buffer)), | |
2171 | BUF_PT_BYTE (XBUFFER (ow->buffer))); | |
7ab12479 JB |
2172 | |
2173 | selected_window = window; | |
44fa5b1e | 2174 | if (XFRAME (WINDOW_FRAME (w)) != selected_frame) |
7ab12479 | 2175 | { |
44fa5b1e | 2176 | XFRAME (WINDOW_FRAME (w))->selected_window = window; |
147a6615 RS |
2177 | /* Use this rather than Fhandle_switch_frame |
2178 | so that FRAME_FOCUS_FRAME is moved appropriately as we | |
2179 | move around in the state where a minibuffer in a separate | |
2180 | frame is active. */ | |
2181 | Fselect_frame (WINDOW_FRAME (w), Qnil); | |
7ab12479 JB |
2182 | } |
2183 | else | |
44fa5b1e | 2184 | selected_frame->selected_window = window; |
7ab12479 | 2185 | |
b7354ddf RS |
2186 | if (recordflag) |
2187 | record_buffer (w->buffer); | |
7ab12479 JB |
2188 | Fset_buffer (w->buffer); |
2189 | ||
86e48436 RS |
2190 | XBUFFER (w->buffer)->last_selected_window = window; |
2191 | ||
7ab12479 JB |
2192 | /* Go to the point recorded in the window. |
2193 | This is important when the buffer is in more | |
2194 | than one window. It also matters when | |
2195 | redisplay_window has altered point after scrolling, | |
2196 | because it makes the change only in the window. */ | |
2197 | { | |
2198 | register int new_point = marker_position (w->pointm); | |
2199 | if (new_point < BEGV) | |
2200 | SET_PT (BEGV); | |
a9c95e08 | 2201 | else if (new_point > ZV) |
7ab12479 JB |
2202 | SET_PT (ZV); |
2203 | else | |
2204 | SET_PT (new_point); | |
2205 | } | |
2206 | ||
2207 | windows_or_buffers_changed++; | |
2208 | return window; | |
2209 | } | |
b7354ddf | 2210 | \f |
441a127e RS |
2211 | /* Deiconify the frame containing the window WINDOW, |
2212 | unless it is the selected frame; | |
2213 | then return WINDOW. | |
2214 | ||
2215 | The reason for the exception for the selected frame | |
2216 | is that it seems better not to change the selected frames visibility | |
2217 | merely because of displaying a different buffer in it. | |
2218 | The deiconification is useful when a buffer gets shown in | |
2219 | another frame that you were not using lately. */ | |
d07f802a RS |
2220 | |
2221 | static Lisp_Object | |
2222 | display_buffer_1 (window) | |
2223 | Lisp_Object window; | |
2224 | { | |
d07f802a RS |
2225 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
2226 | FRAME_SAMPLE_VISIBILITY (f); | |
60117126 RS |
2227 | if (f != selected_frame) |
2228 | { | |
2229 | if (FRAME_ICONIFIED_P (f)) | |
2230 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
37962e60 | 2231 | else if (FRAME_VISIBLE_P (f)) |
60117126 RS |
2232 | Fraise_frame (WINDOW_FRAME (XWINDOW (window))); |
2233 | } | |
d07f802a RS |
2234 | return window; |
2235 | } | |
2236 | ||
4628f7a4 | 2237 | DEFUN ("special-display-p", Fspecial_display_p, Sspecial_display_p, 1, 1, 0, |
0f7d64d2 GV |
2238 | "Returns non-nil if a buffer named BUFFER-NAME would be created specially.\n\ |
2239 | The value is actually t if the frame should be called with default frame\n\ | |
2240 | parameters, and a list of frame parameters if they were specified.\n\ | |
4628f7a4 EN |
2241 | See `special-display-buffer-names', and `special-display-regexps'.") |
2242 | (buffer_name) | |
2243 | Lisp_Object buffer_name; | |
2244 | { | |
2245 | Lisp_Object tem; | |
2246 | ||
2247 | CHECK_STRING (buffer_name, 1); | |
2248 | ||
2249 | tem = Fmember (buffer_name, Vspecial_display_buffer_names); | |
2250 | if (!NILP (tem)) | |
2251 | return Qt; | |
2252 | ||
2253 | tem = Fassoc (buffer_name, Vspecial_display_buffer_names); | |
2254 | if (!NILP (tem)) | |
2255 | return XCDR (tem); | |
2256 | ||
2257 | for (tem = Vspecial_display_regexps; CONSP (tem); tem = XCDR (tem)) | |
2258 | { | |
2259 | Lisp_Object car = XCAR (tem); | |
2260 | if (STRINGP (car) | |
2261 | && fast_string_match (car, buffer_name) >= 0) | |
2262 | return Qt; | |
2263 | else if (CONSP (car) | |
2264 | && STRINGP (XCAR (car)) | |
2265 | && fast_string_match (XCAR (car), buffer_name) >= 0) | |
0057b00a | 2266 | return XCDR (car); |
4628f7a4 EN |
2267 | } |
2268 | return Qnil; | |
2269 | } | |
2270 | ||
2271 | DEFUN ("same-window-p", Fsame_window_p, Ssame_window_p, 1, 1, 0, | |
0f7d64d2 | 2272 | "Returns non-nil if a new buffer named BUFFER-NAME would use the same window.\n\ |
4628f7a4 EN |
2273 | See `same-window-buffer-names' and `same-window-regexps'.") |
2274 | (buffer_name) | |
2275 | Lisp_Object buffer_name; | |
2276 | { | |
2277 | Lisp_Object tem; | |
2278 | ||
2279 | CHECK_STRING (buffer_name, 1); | |
2280 | ||
2281 | tem = Fmember (buffer_name, Vsame_window_buffer_names); | |
2282 | if (!NILP (tem)) | |
2283 | return Qt; | |
2284 | ||
2285 | tem = Fassoc (buffer_name, Vsame_window_buffer_names); | |
2286 | if (!NILP (tem)) | |
2287 | return Qt; | |
2288 | ||
2289 | for (tem = Vsame_window_regexps; CONSP (tem); tem = XCDR (tem)) | |
2290 | { | |
2291 | Lisp_Object car = XCAR (tem); | |
2292 | if (STRINGP (car) | |
2293 | && fast_string_match (car, buffer_name) >= 0) | |
2294 | return Qt; | |
2295 | else if (CONSP (car) | |
2296 | && STRINGP (XCAR (car)) | |
2297 | && fast_string_match (XCAR (car), buffer_name) >= 0) | |
2298 | return Qt; | |
2299 | } | |
2300 | return Qnil; | |
2301 | } | |
2302 | ||
53f76081 RS |
2303 | /* Use B so the default is (other-buffer). */ |
2304 | DEFUN ("display-buffer", Fdisplay_buffer, Sdisplay_buffer, 1, 3, | |
2305 | "BDisplay buffer: \nP", | |
7ab12479 JB |
2306 | "Make BUFFER appear in some window but don't select it.\n\ |
2307 | BUFFER can be a buffer or a buffer name.\n\ | |
2308 | If BUFFER is shown already in some window, just use that one,\n\ | |
2309 | unless the window is the selected window and the optional second\n\ | |
46d3268a | 2310 | argument NOT-THIS-WINDOW is non-nil (interactively, with prefix arg).\n\ |
5141b901 | 2311 | If `pop-up-frames' is non-nil, make a new frame if no window shows BUFFER.\n\ |
5abcf432 RS |
2312 | Returns the window displaying BUFFER.\n\ |
2313 | \n\ | |
2314 | The variables `special-display-buffer-names', `special-display-regexps',\n\ | |
2315 | `same-window-buffer-names', and `same-window-regexps' customize how certain\n\ | |
53f76081 RS |
2316 | buffer names are handled.\n\ |
2317 | \n\ | |
2318 | If optional argument FRAME is `visible', search all visible frames.\n\ | |
2319 | If FRAME is 0, search all visible and iconified frames.\n\ | |
2320 | If FRAME is t, search all frames.\n\ | |
2321 | If FRAME is a frame, search only that frame.\n\ | |
2322 | If FRAME is nil, search only the selected frame\n\ | |
2323 | (actually the last nonminibuffer frame),\n\ | |
2324 | unless `pop-up-frames' is non-nil,\n\ | |
2325 | which means search visible and iconified frames.") | |
2326 | (buffer, not_this_window, frame) | |
2327 | register Lisp_Object buffer, not_this_window, frame; | |
7ab12479 | 2328 | { |
a90712c2 | 2329 | register Lisp_Object window, tem; |
7ab12479 JB |
2330 | |
2331 | buffer = Fget_buffer (buffer); | |
2332 | CHECK_BUFFER (buffer, 0); | |
2333 | ||
265a9e55 | 2334 | if (!NILP (Vdisplay_buffer_function)) |
7ab12479 JB |
2335 | return call2 (Vdisplay_buffer_function, buffer, not_this_window); |
2336 | ||
265a9e55 | 2337 | if (NILP (not_this_window) |
7ab12479 | 2338 | && XBUFFER (XWINDOW (selected_window)->buffer) == XBUFFER (buffer)) |
d07f802a | 2339 | return display_buffer_1 (selected_window); |
7ab12479 | 2340 | |
855d8627 RS |
2341 | /* See if the user has specified this buffer should appear |
2342 | in the selected window. */ | |
2343 | if (NILP (not_this_window)) | |
2344 | { | |
4628f7a4 | 2345 | tem = Fsame_window_p (XBUFFER (buffer)->name); |
855d8627 | 2346 | if (!NILP (tem)) |
c63dc4a2 RS |
2347 | { |
2348 | Fswitch_to_buffer (buffer, Qnil); | |
d07f802a | 2349 | return display_buffer_1 (selected_window); |
c63dc4a2 | 2350 | } |
855d8627 RS |
2351 | } |
2352 | ||
e8edb3ae | 2353 | /* If pop_up_frames, |
73dc5198 KH |
2354 | look for a window showing BUFFER on any visible or iconified frame. |
2355 | Otherwise search only the current frame. */ | |
53f76081 RS |
2356 | if (! NILP (frame)) |
2357 | tem = frame; | |
2358 | else if (pop_up_frames || last_nonminibuf_frame == 0) | |
73dc5198 KH |
2359 | XSETFASTINT (tem, 0); |
2360 | else | |
73dc5198 KH |
2361 | XSETFRAME (tem, last_nonminibuf_frame); |
2362 | window = Fget_buffer_window (buffer, tem); | |
265a9e55 JB |
2363 | if (!NILP (window) |
2364 | && (NILP (not_this_window) || !EQ (window, selected_window))) | |
f812f9c6 | 2365 | { |
d07f802a | 2366 | return display_buffer_1 (window); |
f812f9c6 | 2367 | } |
7ab12479 | 2368 | |
a90712c2 | 2369 | /* Certain buffer names get special handling. */ |
4628f7a4 | 2370 | if (!NILP (Vspecial_display_function)) |
a90712c2 | 2371 | { |
4628f7a4 EN |
2372 | tem = Fspecial_display_p (XBUFFER (buffer)->name); |
2373 | if (EQ (tem, Qt)) | |
a90712c2 | 2374 | return call1 (Vspecial_display_function, buffer); |
4628f7a4 EN |
2375 | if (CONSP (tem)) |
2376 | return call2 (Vspecial_display_function, buffer, tem); | |
a90712c2 RS |
2377 | } |
2378 | ||
44fa5b1e JB |
2379 | /* If there are no frames open that have more than a minibuffer, |
2380 | we need to create a new frame. */ | |
2381 | if (pop_up_frames || last_nonminibuf_frame == 0) | |
7ab12479 | 2382 | { |
a90712c2 | 2383 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); |
7ab12479 | 2384 | Fset_window_buffer (window, buffer); |
d07f802a | 2385 | return display_buffer_1 (window); |
7ab12479 | 2386 | } |
7ab12479 | 2387 | |
43bad991 | 2388 | if (pop_up_windows |
44fa5b1e | 2389 | || FRAME_MINIBUF_ONLY_P (selected_frame) |
cee67da9 RS |
2390 | /* If the current frame is a special display frame, |
2391 | don't try to reuse its windows. */ | |
2392 | || !NILP (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->dedicated) | |
43bad991 | 2393 | ) |
7ab12479 | 2394 | { |
12cae7c0 KH |
2395 | Lisp_Object frames; |
2396 | ||
37962e60 | 2397 | frames = Qnil; |
44fa5b1e | 2398 | if (FRAME_MINIBUF_ONLY_P (selected_frame)) |
74112613 | 2399 | XSETFRAME (frames, last_nonminibuf_frame); |
7ab12479 JB |
2400 | /* Don't try to create a window if would get an error */ |
2401 | if (split_height_threshold < window_min_height << 1) | |
2402 | split_height_threshold = window_min_height << 1; | |
2403 | ||
cee67da9 RS |
2404 | /* Note that both Fget_largest_window and Fget_lru_window |
2405 | ignore minibuffers and dedicated windows. | |
2406 | This means they can return nil. */ | |
7ab12479 | 2407 | |
cee67da9 RS |
2408 | /* If the frame we would try to split cannot be split, |
2409 | try other frames. */ | |
2410 | if (FRAME_NO_SPLIT_P (NILP (frames) ? selected_frame | |
2411 | : last_nonminibuf_frame)) | |
2412 | { | |
2413 | /* Try visible frames first. */ | |
2414 | window = Fget_largest_window (Qvisible); | |
2415 | /* If that didn't work, try iconified frames. */ | |
2416 | if (NILP (window)) | |
2417 | window = Fget_largest_window (make_number (0)); | |
2418 | if (NILP (window)) | |
2419 | window = Fget_largest_window (Qt); | |
2420 | } | |
2421 | else | |
2422 | window = Fget_largest_window (frames); | |
2423 | ||
92cca945 RS |
2424 | /* If we got a tall enough full-width window that can be split, |
2425 | split it. */ | |
265a9e55 | 2426 | if (!NILP (window) |
92cca945 | 2427 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
7ab12479 | 2428 | && window_height (window) >= split_height_threshold |
111e5992 | 2429 | && WINDOW_FULL_WIDTH_P (XWINDOW (window))) |
7ab12479 JB |
2430 | window = Fsplit_window (window, Qnil, Qnil); |
2431 | else | |
2432 | { | |
1942f68f RS |
2433 | Lisp_Object upper, lower, other; |
2434 | ||
44fa5b1e | 2435 | window = Fget_lru_window (frames); |
92cca945 RS |
2436 | /* If the LRU window is selected, and big enough, |
2437 | and can be split, split it. */ | |
cee67da9 | 2438 | if (!NILP (window) |
92cca945 | 2439 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
cee67da9 RS |
2440 | && (EQ (window, selected_window) |
2441 | || EQ (XWINDOW (window)->parent, Qnil)) | |
7ab12479 JB |
2442 | && window_height (window) >= window_min_height << 1) |
2443 | window = Fsplit_window (window, Qnil, Qnil); | |
cee67da9 | 2444 | /* If Fget_lru_window returned nil, try other approaches. */ |
48d9379d | 2445 | |
cee67da9 | 2446 | /* Try visible frames first. */ |
48d9379d RS |
2447 | if (NILP (window)) |
2448 | window = Fget_buffer_window (buffer, Qvisible); | |
cee67da9 RS |
2449 | if (NILP (window)) |
2450 | window = Fget_largest_window (Qvisible); | |
2451 | /* If that didn't work, try iconified frames. */ | |
48d9379d RS |
2452 | if (NILP (window)) |
2453 | window = Fget_buffer_window (buffer, make_number (0)); | |
cee67da9 RS |
2454 | if (NILP (window)) |
2455 | window = Fget_largest_window (make_number (0)); | |
2456 | /* Try invisible frames. */ | |
48d9379d RS |
2457 | if (NILP (window)) |
2458 | window = Fget_buffer_window (buffer, Qt); | |
cee67da9 RS |
2459 | if (NILP (window)) |
2460 | window = Fget_largest_window (Qt); | |
2461 | /* As a last resort, make a new frame. */ | |
2462 | if (NILP (window)) | |
2463 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); | |
1942f68f RS |
2464 | /* If window appears above or below another, |
2465 | even out their heights. */ | |
cac66e4f | 2466 | other = upper = lower = Qnil; |
1942f68f RS |
2467 | if (!NILP (XWINDOW (window)->prev)) |
2468 | other = upper = XWINDOW (window)->prev, lower = window; | |
2469 | if (!NILP (XWINDOW (window)->next)) | |
2470 | other = lower = XWINDOW (window)->next, upper = window; | |
2471 | if (!NILP (other) | |
2472 | /* Check that OTHER and WINDOW are vertically arrayed. */ | |
296b535c KH |
2473 | && !EQ (XWINDOW (other)->top, XWINDOW (window)->top) |
2474 | && (XFASTINT (XWINDOW (other)->height) | |
2475 | > XFASTINT (XWINDOW (window)->height))) | |
1942f68f | 2476 | { |
296b535c KH |
2477 | int total = (XFASTINT (XWINDOW (other)->height) |
2478 | + XFASTINT (XWINDOW (window)->height)); | |
8d77c0c8 KH |
2479 | Lisp_Object old_selected_window; |
2480 | old_selected_window = selected_window; | |
1942f68f | 2481 | |
8d77c0c8 | 2482 | selected_window = upper; |
296b535c KH |
2483 | change_window_height ((total / 2 |
2484 | - XFASTINT (XWINDOW (upper)->height)), | |
2485 | 0); | |
1942f68f RS |
2486 | selected_window = old_selected_window; |
2487 | } | |
7ab12479 JB |
2488 | } |
2489 | } | |
2490 | else | |
2491 | window = Fget_lru_window (Qnil); | |
2492 | ||
2493 | Fset_window_buffer (window, buffer); | |
d07f802a | 2494 | return display_buffer_1 (window); |
7ab12479 JB |
2495 | } |
2496 | ||
2497 | void | |
2498 | temp_output_buffer_show (buf) | |
2499 | register Lisp_Object buf; | |
2500 | { | |
2501 | register struct buffer *old = current_buffer; | |
2502 | register Lisp_Object window; | |
2503 | register struct window *w; | |
2504 | ||
bccd3dd1 RS |
2505 | XBUFFER (buf)->directory = current_buffer->directory; |
2506 | ||
7ab12479 | 2507 | Fset_buffer (buf); |
c6367666 | 2508 | BUF_SAVE_MODIFF (XBUFFER (buf)) = MODIFF; |
7ab12479 JB |
2509 | BEGV = BEG; |
2510 | ZV = Z; | |
2511 | SET_PT (BEG); | |
1479ef51 | 2512 | XBUFFER (buf)->clip_changed = 1; |
7ab12479 JB |
2513 | set_buffer_internal (old); |
2514 | ||
2515 | if (!EQ (Vtemp_buffer_show_function, Qnil)) | |
2516 | call1 (Vtemp_buffer_show_function, buf); | |
2517 | else | |
2518 | { | |
53f76081 | 2519 | window = Fdisplay_buffer (buf, Qnil, Qnil); |
7ab12479 | 2520 | |
44fa5b1e JB |
2521 | if (XFRAME (XWINDOW (window)->frame) != selected_frame) |
2522 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
7ab12479 JB |
2523 | Vminibuf_scroll_window = window; |
2524 | w = XWINDOW (window); | |
d834a2e9 | 2525 | XSETFASTINT (w->hscroll, 0); |
b73ea88e RS |
2526 | set_marker_restricted_both (w->start, buf, 1, 1); |
2527 | set_marker_restricted_both (w->pointm, buf, 1, 1); | |
a58ec57d | 2528 | |
beb4e312 RS |
2529 | /* Run temp-buffer-show-hook, with the chosen window selected |
2530 | and it sbuffer current. */ | |
f52cca03 | 2531 | if (!NILP (Vrun_hooks)) |
2cccc823 | 2532 | { |
f52cca03 RS |
2533 | Lisp_Object tem; |
2534 | tem = Fboundp (Qtemp_buffer_show_hook); | |
2cccc823 RS |
2535 | if (!NILP (tem)) |
2536 | { | |
f52cca03 RS |
2537 | tem = Fsymbol_value (Qtemp_buffer_show_hook); |
2538 | if (!NILP (tem)) | |
2539 | { | |
2540 | int count = specpdl_ptr - specpdl; | |
b7354ddf RS |
2541 | Lisp_Object prev_window; |
2542 | prev_window = selected_window; | |
2cccc823 | 2543 | |
f52cca03 | 2544 | /* Select the window that was chosen, for running the hook. */ |
65a04b96 | 2545 | record_unwind_protect (Fselect_window, prev_window); |
b7354ddf | 2546 | select_window_1 (window, 0); |
beb4e312 | 2547 | Fset_buffer (w->buffer); |
f52cca03 | 2548 | call1 (Vrun_hooks, Qtemp_buffer_show_hook); |
b7354ddf | 2549 | select_window_1 (prev_window, 0); |
f52cca03 RS |
2550 | unbind_to (count, Qnil); |
2551 | } | |
2cccc823 RS |
2552 | } |
2553 | } | |
2554 | } | |
7ab12479 JB |
2555 | } |
2556 | \f | |
dfcf069d | 2557 | static void |
7ab12479 JB |
2558 | make_dummy_parent (window) |
2559 | Lisp_Object window; | |
2560 | { | |
cffec418 | 2561 | Lisp_Object new; |
7ab12479 | 2562 | register struct window *o, *p; |
cffec418 KH |
2563 | register struct Lisp_Vector *vec; |
2564 | int i; | |
7ab12479 | 2565 | |
cffec418 KH |
2566 | o = XWINDOW (window); |
2567 | vec = allocate_vectorlike ((EMACS_INT)VECSIZE (struct window)); | |
2568 | for (i = 0; i < VECSIZE (struct window); ++i) | |
2569 | vec->contents[i] = ((struct Lisp_Vector *)o)->contents[i]; | |
2570 | vec->size = VECSIZE (struct window); | |
2571 | p = (struct window *)vec; | |
2572 | XSETWINDOW (new, p); | |
7ab12479 | 2573 | |
d834a2e9 | 2574 | XSETFASTINT (p->sequence_number, ++sequence_number); |
7ab12479 JB |
2575 | |
2576 | /* Put new into window structure in place of window */ | |
2577 | replace_window (window, new); | |
2578 | ||
2579 | o->next = Qnil; | |
2580 | o->prev = Qnil; | |
2581 | o->vchild = Qnil; | |
2582 | o->hchild = Qnil; | |
2583 | o->parent = new; | |
2584 | ||
2585 | p->start = Qnil; | |
2586 | p->pointm = Qnil; | |
2587 | p->buffer = Qnil; | |
2588 | } | |
2589 | ||
2590 | DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "", | |
2591 | "Split WINDOW, putting SIZE lines in the first of the pair.\n\ | |
2592 | WINDOW defaults to selected one and SIZE to half its size.\n\ | |
77ae0fe3 | 2593 | If optional third arg HORFLAG is non-nil, split side by side\n\ |
10f96191 RS |
2594 | and put SIZE columns in the first of the pair. In that case,\n\ |
2595 | SIZE includes that window's scroll bar, or the divider column to its right.") | |
77ae0fe3 KH |
2596 | (window, size, horflag) |
2597 | Lisp_Object window, size, horflag; | |
7ab12479 JB |
2598 | { |
2599 | register Lisp_Object new; | |
2600 | register struct window *o, *p; | |
c0807608 | 2601 | FRAME_PTR fo; |
77ae0fe3 | 2602 | register int size_int; |
7ab12479 | 2603 | |
265a9e55 | 2604 | if (NILP (window)) |
7ab12479 JB |
2605 | window = selected_window; |
2606 | else | |
605be8af | 2607 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2608 | |
2609 | o = XWINDOW (window); | |
c0807608 | 2610 | fo = XFRAME (WINDOW_FRAME (o)); |
7ab12479 | 2611 | |
77ae0fe3 | 2612 | if (NILP (size)) |
7ab12479 | 2613 | { |
265a9e55 | 2614 | if (!NILP (horflag)) |
c0807608 | 2615 | /* Calculate the size of the left-hand window, by dividing |
25b33244 KH |
2616 | the usable space in columns by two. |
2617 | We round up, since the left-hand window may include | |
2618 | a dividing line, while the right-hand may not. */ | |
2619 | size_int = (XFASTINT (o->width) + 1) >> 1; | |
7ab12479 | 2620 | else |
77ae0fe3 | 2621 | size_int = XFASTINT (o->height) >> 1; |
7ab12479 JB |
2622 | } |
2623 | else | |
2624 | { | |
77ae0fe3 KH |
2625 | CHECK_NUMBER (size, 1); |
2626 | size_int = XINT (size); | |
7ab12479 JB |
2627 | } |
2628 | ||
2629 | if (MINI_WINDOW_P (o)) | |
2630 | error ("Attempt to split minibuffer window"); | |
7ab12479 | 2631 | |
a481b3ea | 2632 | check_min_window_sizes (); |
7ab12479 | 2633 | |
265a9e55 | 2634 | if (NILP (horflag)) |
7ab12479 | 2635 | { |
77ae0fe3 KH |
2636 | if (size_int < window_min_height) |
2637 | error ("Window height %d too small (after splitting)", size_int); | |
2638 | if (size_int + window_min_height > XFASTINT (o->height)) | |
37962e60 | 2639 | error ("Window height %d too small (after splitting)", |
77ae0fe3 | 2640 | XFASTINT (o->height) - size_int); |
265a9e55 JB |
2641 | if (NILP (o->parent) |
2642 | || NILP (XWINDOW (o->parent)->vchild)) | |
7ab12479 JB |
2643 | { |
2644 | make_dummy_parent (window); | |
2645 | new = o->parent; | |
2646 | XWINDOW (new)->vchild = window; | |
2647 | } | |
2648 | } | |
2649 | else | |
2650 | { | |
77ae0fe3 KH |
2651 | if (size_int < window_min_width) |
2652 | error ("Window width %d too small (after splitting)", size_int); | |
a59fed7e RS |
2653 | |
2654 | if (size_int + window_min_width > XFASTINT (o->width)) | |
37962e60 | 2655 | error ("Window width %d too small (after splitting)", |
a59fed7e | 2656 | XFASTINT (o->width) - size_int); |
265a9e55 JB |
2657 | if (NILP (o->parent) |
2658 | || NILP (XWINDOW (o->parent)->hchild)) | |
7ab12479 JB |
2659 | { |
2660 | make_dummy_parent (window); | |
2661 | new = o->parent; | |
2662 | XWINDOW (new)->hchild = window; | |
2663 | } | |
2664 | } | |
2665 | ||
2666 | /* Now we know that window's parent is a vertical combination | |
2667 | if we are dividing vertically, or a horizontal combination | |
2668 | if we are making side-by-side windows */ | |
2669 | ||
2670 | windows_or_buffers_changed++; | |
c0807608 | 2671 | FRAME_WINDOW_SIZES_CHANGED (fo) = 1; |
7ab12479 JB |
2672 | new = make_window (); |
2673 | p = XWINDOW (new); | |
2674 | ||
44fa5b1e | 2675 | p->frame = o->frame; |
7ab12479 | 2676 | p->next = o->next; |
265a9e55 | 2677 | if (!NILP (p->next)) |
7ab12479 JB |
2678 | XWINDOW (p->next)->prev = new; |
2679 | p->prev = window; | |
2680 | o->next = new; | |
2681 | p->parent = o->parent; | |
2682 | p->buffer = Qt; | |
5500c422 GM |
2683 | p->window_end_valid = Qnil; |
2684 | bzero (&p->last_cursor, sizeof p->last_cursor); | |
7ab12479 | 2685 | |
44fa5b1e | 2686 | /* Apportion the available frame space among the two new windows */ |
7ab12479 | 2687 | |
265a9e55 | 2688 | if (!NILP (horflag)) |
7ab12479 JB |
2689 | { |
2690 | p->height = o->height; | |
2691 | p->top = o->top; | |
a59fed7e | 2692 | XSETFASTINT (p->width, XFASTINT (o->width) - size_int); |
77ae0fe3 KH |
2693 | XSETFASTINT (o->width, size_int); |
2694 | XSETFASTINT (p->left, XFASTINT (o->left) + size_int); | |
7ab12479 JB |
2695 | } |
2696 | else | |
2697 | { | |
2698 | p->left = o->left; | |
2699 | p->width = o->width; | |
77ae0fe3 KH |
2700 | XSETFASTINT (p->height, XFASTINT (o->height) - size_int); |
2701 | XSETFASTINT (o->height, size_int); | |
2702 | XSETFASTINT (p->top, XFASTINT (o->top) + size_int); | |
7ab12479 JB |
2703 | } |
2704 | ||
5500c422 GM |
2705 | /* Adjust glyph matrices. */ |
2706 | adjust_glyphs (fo); | |
543f5fb1 | 2707 | Fset_window_buffer (new, o->buffer); |
7ab12479 JB |
2708 | return new; |
2709 | } | |
2710 | \f | |
2711 | DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p", | |
2712 | "Make current window ARG lines bigger.\n\ | |
2713 | From program, optional second arg non-nil means grow sideways ARG columns.") | |
413430c5 EN |
2714 | (arg, side) |
2715 | register Lisp_Object arg, side; | |
7ab12479 | 2716 | { |
413430c5 EN |
2717 | CHECK_NUMBER (arg, 0); |
2718 | change_window_height (XINT (arg), !NILP (side)); | |
543f5fb1 RS |
2719 | |
2720 | if (! NILP (Vwindow_configuration_change_hook)) | |
2721 | call1 (Vrun_hooks, Qwindow_configuration_change_hook); | |
2722 | ||
7ab12479 JB |
2723 | return Qnil; |
2724 | } | |
2725 | ||
2726 | DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p", | |
2727 | "Make current window ARG lines smaller.\n\ | |
413430c5 EN |
2728 | From program, optional second arg non-nil means shrink sideways arg columns.") |
2729 | (arg, side) | |
2730 | register Lisp_Object arg, side; | |
7ab12479 | 2731 | { |
413430c5 EN |
2732 | CHECK_NUMBER (arg, 0); |
2733 | change_window_height (-XINT (arg), !NILP (side)); | |
543f5fb1 RS |
2734 | |
2735 | if (! NILP (Vwindow_configuration_change_hook)) | |
2736 | call1 (Vrun_hooks, Qwindow_configuration_change_hook); | |
2737 | ||
7ab12479 JB |
2738 | return Qnil; |
2739 | } | |
2740 | ||
2741 | int | |
2742 | window_height (window) | |
2743 | Lisp_Object window; | |
2744 | { | |
2745 | register struct window *p = XWINDOW (window); | |
2746 | return XFASTINT (p->height); | |
2747 | } | |
2748 | ||
2749 | int | |
2750 | window_width (window) | |
2751 | Lisp_Object window; | |
2752 | { | |
2753 | register struct window *p = XWINDOW (window); | |
2754 | return XFASTINT (p->width); | |
2755 | } | |
2756 | ||
05c2896a JB |
2757 | #define MINSIZE(w) \ |
2758 | (widthflag \ | |
2759 | ? window_min_width \ | |
2760 | : (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)) | |
7ab12479 JB |
2761 | |
2762 | #define CURBEG(w) \ | |
05c2896a | 2763 | *(widthflag ? (int *) &(XWINDOW (w)->left) : (int *) &(XWINDOW (w)->top)) |
7ab12479 JB |
2764 | |
2765 | #define CURSIZE(w) \ | |
05c2896a | 2766 | *(widthflag ? (int *) &(XWINDOW (w)->width) : (int *) &(XWINDOW (w)->height)) |
7ab12479 JB |
2767 | |
2768 | /* Unlike set_window_height, this function | |
2769 | also changes the heights of the siblings so as to | |
2770 | keep everything consistent. */ | |
2771 | ||
5e14b1fc | 2772 | void |
7ab12479 JB |
2773 | change_window_height (delta, widthflag) |
2774 | register int delta; | |
2775 | int widthflag; | |
2776 | { | |
2777 | register Lisp_Object parent; | |
2778 | Lisp_Object window; | |
2779 | register struct window *p; | |
2780 | int *sizep; | |
5e14b1fc AS |
2781 | int (*sizefun) P_ ((Lisp_Object)) |
2782 | = widthflag ? window_width : window_height; | |
2783 | register void (*setsizefun) P_ ((Lisp_Object, int, int)) | |
2784 | = (widthflag ? set_window_width : set_window_height); | |
db98a733 RS |
2785 | int maximum; |
2786 | Lisp_Object next, prev; | |
7ab12479 | 2787 | |
a481b3ea | 2788 | check_min_window_sizes (); |
7ab12479 JB |
2789 | |
2790 | window = selected_window; | |
2791 | while (1) | |
2792 | { | |
2793 | p = XWINDOW (window); | |
2794 | parent = p->parent; | |
265a9e55 | 2795 | if (NILP (parent)) |
7ab12479 JB |
2796 | { |
2797 | if (widthflag) | |
2798 | error ("No other window to side of this one"); | |
2799 | break; | |
2800 | } | |
265a9e55 JB |
2801 | if (widthflag ? !NILP (XWINDOW (parent)->hchild) |
2802 | : !NILP (XWINDOW (parent)->vchild)) | |
7ab12479 JB |
2803 | break; |
2804 | window = parent; | |
2805 | } | |
2806 | ||
05c2896a | 2807 | sizep = &CURSIZE (window); |
7ab12479 | 2808 | |
7ab12479 JB |
2809 | { |
2810 | register int maxdelta; | |
7ab12479 | 2811 | |
265a9e55 JB |
2812 | maxdelta = (!NILP (parent) ? (*sizefun) (parent) - *sizep |
2813 | : !NILP (p->next) ? (*sizefun) (p->next) - MINSIZE (p->next) | |
2814 | : !NILP (p->prev) ? (*sizefun) (p->prev) - MINSIZE (p->prev) | |
44fa5b1e JB |
2815 | /* This is a frame with only one window, a minibuffer-only |
2816 | or a minibufferless frame. */ | |
d5783c40 | 2817 | : (delta = 0)); |
7ab12479 JB |
2818 | |
2819 | if (delta > maxdelta) | |
2820 | /* This case traps trying to make the minibuffer | |
44fa5b1e JB |
2821 | the full frame, or make the only window aside from the |
2822 | minibuffer the full frame. */ | |
7ab12479 | 2823 | delta = maxdelta; |
6b54027b | 2824 | } |
d5783c40 | 2825 | |
6b54027b RS |
2826 | if (*sizep + delta < MINSIZE (window)) |
2827 | { | |
543f5fb1 | 2828 | delete_window (window); |
d5783c40 | 2829 | return; |
6b54027b RS |
2830 | } |
2831 | ||
2832 | if (delta == 0) | |
2833 | return; | |
7ab12479 | 2834 | |
db98a733 RS |
2835 | /* Find the total we can get from other siblings. */ |
2836 | maximum = 0; | |
2837 | for (next = p->next; ! NILP (next); next = XWINDOW (next)->next) | |
2838 | maximum += (*sizefun) (next) - MINSIZE (next); | |
2839 | for (prev = p->prev; ! NILP (prev); prev = XWINDOW (prev)->prev) | |
2840 | maximum += (*sizefun) (prev) - MINSIZE (prev); | |
2841 | ||
2842 | /* If we can get it all from them, do so. */ | |
c6b530ed | 2843 | if (delta <= maximum) |
7ab12479 | 2844 | { |
db98a733 RS |
2845 | Lisp_Object first_unaffected; |
2846 | Lisp_Object first_affected; | |
2847 | ||
2848 | next = p->next; | |
2849 | prev = p->prev; | |
2850 | first_affected = window; | |
2851 | /* Look at one sibling at a time, | |
2852 | moving away from this window in both directions alternately, | |
2853 | and take as much as we can get without deleting that sibling. */ | |
dc91fb5d | 2854 | while (delta != 0) |
db98a733 RS |
2855 | { |
2856 | if (delta == 0) | |
2857 | break; | |
2858 | if (! NILP (next)) | |
2859 | { | |
2860 | int this_one = (*sizefun) (next) - MINSIZE (next); | |
2861 | if (this_one > delta) | |
2862 | this_one = delta; | |
2863 | ||
2864 | (*setsizefun) (next, (*sizefun) (next) - this_one, 0); | |
2865 | (*setsizefun) (window, *sizep + this_one, 0); | |
2866 | ||
2867 | delta -= this_one; | |
2868 | next = XWINDOW (next)->next; | |
2869 | } | |
2870 | if (delta == 0) | |
2871 | break; | |
2872 | if (! NILP (prev)) | |
2873 | { | |
2874 | int this_one = (*sizefun) (prev) - MINSIZE (prev); | |
2875 | if (this_one > delta) | |
2876 | this_one = delta; | |
2877 | ||
2878 | first_affected = prev; | |
2879 | ||
2880 | (*setsizefun) (prev, (*sizefun) (prev) - this_one, 0); | |
2881 | (*setsizefun) (window, *sizep + this_one, 0); | |
2882 | ||
2883 | delta -= this_one; | |
2884 | prev = XWINDOW (prev)->prev; | |
2885 | } | |
2886 | } | |
2887 | ||
2888 | /* Now recalculate the edge positions of all the windows affected, | |
2889 | based on the new sizes. */ | |
2890 | first_unaffected = next; | |
2891 | prev = first_affected; | |
2892 | for (next = XWINDOW (prev)->next; ! EQ (next, first_unaffected); | |
2893 | prev = next, next = XWINDOW (next)->next) | |
2894 | { | |
2895 | CURBEG (next) = CURBEG (prev) + (*sizefun) (prev); | |
2896 | /* This does not change size of NEXT, | |
2897 | but it propagates the new top edge to its children */ | |
2898 | (*setsizefun) (next, (*sizefun) (next), 0); | |
2899 | } | |
7ab12479 JB |
2900 | } |
2901 | else | |
2902 | { | |
2903 | register int delta1; | |
2904 | register int opht = (*sizefun) (parent); | |
2905 | ||
2906 | /* If trying to grow this window to or beyond size of the parent, | |
2907 | make delta1 so big that, on shrinking back down, | |
2908 | all the siblings end up with less than one line and are deleted. */ | |
2909 | if (opht <= *sizep + delta) | |
2910 | delta1 = opht * opht * 2; | |
2911 | /* Otherwise, make delta1 just right so that if we add delta1 | |
2912 | lines to this window and to the parent, and then shrink | |
2913 | the parent back to its original size, the new proportional | |
2914 | size of this window will increase by delta. */ | |
2915 | else | |
2916 | delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
2917 | ||
2918 | /* Add delta1 lines or columns to this window, and to the parent, | |
2919 | keeping things consistent while not affecting siblings. */ | |
05c2896a | 2920 | CURSIZE (parent) = opht + delta1; |
7ab12479 JB |
2921 | (*setsizefun) (window, *sizep + delta1, 0); |
2922 | ||
2923 | /* Squeeze out delta1 lines or columns from our parent, | |
2924 | shriking this window and siblings proportionately. | |
2925 | This brings parent back to correct size. | |
2926 | Delta1 was calculated so this makes this window the desired size, | |
2927 | taking it all out of the siblings. */ | |
2928 | (*setsizefun) (parent, opht, 0); | |
2929 | } | |
2930 | ||
d834a2e9 | 2931 | XSETFASTINT (p->last_modified, 0); |
3cd21523 | 2932 | XSETFASTINT (p->last_overlay_modified, 0); |
5500c422 GM |
2933 | |
2934 | /* Adjust glyph matrices. */ | |
2935 | adjust_glyphs (XFRAME (WINDOW_FRAME (XWINDOW (window)))); | |
7ab12479 JB |
2936 | } |
2937 | #undef MINSIZE | |
2938 | #undef CURBEG | |
2939 | #undef CURSIZE | |
2940 | ||
5500c422 GM |
2941 | |
2942 | /* Mark window cursors off for all windows in the window tree rooted | |
2943 | at W by setting their phys_cursor_on_p flag to zero. Called from | |
2944 | xterm.c, e.g. when a frame is cleared and thereby all cursors on | |
2945 | the frame are cleared. */ | |
2946 | ||
2947 | void | |
2948 | mark_window_cursors_off (w) | |
2949 | struct window *w; | |
2950 | { | |
2951 | while (w) | |
2952 | { | |
2953 | if (!NILP (w->hchild)) | |
2954 | mark_window_cursors_off (XWINDOW (w->hchild)); | |
2955 | else if (!NILP (w->vchild)) | |
2956 | mark_window_cursors_off (XWINDOW (w->vchild)); | |
2957 | else | |
2958 | w->phys_cursor_on_p = 0; | |
2959 | ||
2960 | w = NILP (w->next) ? 0 : XWINDOW (w->next); | |
2961 | } | |
2962 | } | |
2963 | ||
2964 | ||
7ab12479 JB |
2965 | /* Return number of lines of text (not counting mode line) in W. */ |
2966 | ||
2967 | int | |
2968 | window_internal_height (w) | |
2969 | struct window *w; | |
2970 | { | |
2971 | int ht = XFASTINT (w->height); | |
2972 | ||
2973 | if (MINI_WINDOW_P (w)) | |
2974 | return ht; | |
2975 | ||
265a9e55 JB |
2976 | if (!NILP (w->parent) || !NILP (w->vchild) || !NILP (w->hchild) |
2977 | || !NILP (w->next) || !NILP (w->prev) | |
44fa5b1e | 2978 | || FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (w)))) |
7ab12479 JB |
2979 | return ht - 1; |
2980 | ||
2981 | return ht; | |
2982 | } | |
2983 | ||
535e0b8e JB |
2984 | |
2985 | /* Return the number of columns in W. | |
a3c87d4e | 2986 | Don't count columns occupied by scroll bars or the vertical bar |
535e0b8e | 2987 | separating W from the sibling to its right. */ |
5500c422 | 2988 | |
535e0b8e JB |
2989 | int |
2990 | window_internal_width (w) | |
2991 | struct window *w; | |
2992 | { | |
5500c422 | 2993 | struct frame *f = XFRAME (WINDOW_FRAME (w)); |
535e0b8e JB |
2994 | int width = XINT (w->width); |
2995 | ||
a3c87d4e | 2996 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) |
5500c422 GM |
2997 | /* Scroll bars occupy a few columns. */ |
2998 | width -= FRAME_SCROLL_BAR_COLS (f); | |
2999 | else if (!WINDOW_RIGHTMOST_P (w) && !WINDOW_FULL_WIDTH_P (w)) | |
3000 | /* The column of `|' characters separating side-by-side windows | |
3001 | occupies one column only. */ | |
3002 | width -= 1; | |
3003 | ||
3004 | /* On window-systems, areas to the left and right of the window | |
3005 | are used to display bitmaps there. */ | |
3006 | if (FRAME_WINDOW_P (f)) | |
3007 | width -= 2 * FRAME_FLAGS_AREA_COLS (f); | |
111e5992 RS |
3008 | |
3009 | return width; | |
535e0b8e JB |
3010 | } |
3011 | ||
5500c422 GM |
3012 | \f |
3013 | /************************************************************************ | |
3014 | Window Scrolling | |
3015 | ***********************************************************************/ | |
535e0b8e | 3016 | |
5500c422 GM |
3017 | /* Scroll contents of window WINDOW up. If WHOLE is non-zero, scroll |
3018 | one screen-full, which is defined as the height of the window minus | |
3019 | next_screen_context_lines. If WHOLE is zero, scroll up N lines | |
3020 | instead. Negative values of N mean scroll down. NOERROR non-zero | |
3021 | means don't signal an error if we try to move over BEGV or ZV, | |
3022 | respectively. */ | |
7ab12479 | 3023 | |
101d1605 RS |
3024 | static void |
3025 | window_scroll (window, n, whole, noerror) | |
7ab12479 JB |
3026 | Lisp_Object window; |
3027 | int n; | |
101d1605 | 3028 | int whole; |
f8026fd8 | 3029 | int noerror; |
5500c422 GM |
3030 | { |
3031 | /* If we must, use the pixel-based version which is much slower than | |
3032 | the line-based one but can handle varying line heights. */ | |
3033 | if (FRAME_WINDOW_P (XFRAME (XWINDOW (window)->frame))) | |
3034 | window_scroll_pixel_based (window, n, whole, noerror); | |
3035 | else | |
3036 | window_scroll_line_based (window, n, whole, noerror); | |
3037 | } | |
3038 | ||
3039 | ||
3040 | /* Implementation of window_scroll that works based on pixel line | |
3041 | heights. See the comment of window_scroll for parameter | |
3042 | descriptions. */ | |
3043 | ||
3044 | static void | |
3045 | window_scroll_pixel_based (window, n, whole, noerror) | |
3046 | Lisp_Object window; | |
3047 | int n; | |
3048 | int whole; | |
3049 | int noerror; | |
3050 | { | |
3051 | struct it it; | |
3052 | struct window *w = XWINDOW (window); | |
3053 | struct text_pos start; | |
3054 | Lisp_Object tem; | |
3055 | int this_scroll_margin; | |
3056 | int preserve_y; | |
3057 | ||
3058 | SET_TEXT_POS_FROM_MARKER (start, w->start); | |
3059 | ||
3060 | /* If PT is not visible in WINDOW, move back one half of | |
3061 | the screen. */ | |
3062 | XSETFASTINT (tem, PT); | |
3063 | tem = Fpos_visible_in_window_p (tem, window); | |
3064 | if (NILP (tem)) | |
3065 | { | |
3066 | /* Move backward half the height of the window. Performance note: | |
3067 | vmotion used here is about 10% faster, but would give wrong | |
3068 | results for variable height lines. */ | |
3069 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
3070 | it.current_y = it.last_visible_y; | |
3071 | move_it_vertically (&it, -it.last_visible_y / 2); | |
3072 | ||
3073 | /* The function move_iterator_vertically may move over more than | |
3074 | the specified y-distance. If it->w is small, e.g. a | |
3075 | mini-buffer window, we may end up in front of the window's | |
3076 | display area. This is the case when Start displaying at the | |
3077 | start of the line containing PT in this case. */ | |
3078 | if (it.current_y <= 0) | |
3079 | { | |
3080 | init_iterator (&it, w, PT, PT_BYTE, NULL, DEFAULT_FACE_ID); | |
3081 | move_it_vertically (&it, 0); | |
3082 | it.current_y = 0; | |
3083 | } | |
3084 | ||
3085 | start = it.current.pos; | |
3086 | } | |
3087 | ||
3088 | /* If scroll_preserve_screen_position is non-zero, we try to set | |
3089 | point in the same window line as it is now, so get that line. */ | |
3090 | if (!NILP (Vscroll_preserve_screen_position)) | |
3091 | { | |
3092 | start_display (&it, w, start); | |
3093 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
3094 | preserve_y = it.current_y; | |
3095 | } | |
3096 | else | |
3097 | preserve_y = -1; | |
3098 | ||
3099 | /* Move iterator it from start the specified distance forward or | |
3100 | backward. The result is the new window start. */ | |
3101 | start_display (&it, w, start); | |
3102 | if (whole) | |
3103 | { | |
3104 | int screen_full = (it.last_visible_y | |
3105 | - next_screen_context_lines * CANON_Y_UNIT (it.f)); | |
3106 | int direction = n < 0 ? -1 : 1; | |
3107 | move_it_vertically (&it, direction * screen_full); | |
3108 | } | |
3109 | else | |
3110 | move_it_by_lines (&it, n, 1); | |
3111 | ||
3112 | /* End if we end up at ZV or BEGV. */ | |
3113 | if ((n > 0 && IT_CHARPOS (it) == ZV) | |
3114 | || (n < 0 && IT_CHARPOS (it) == CHARPOS (start))) | |
3115 | { | |
3116 | if (noerror) | |
3117 | return; | |
3118 | else if (IT_CHARPOS (it) == ZV) | |
3119 | Fsignal (Qend_of_buffer, Qnil); | |
3120 | else | |
3121 | Fsignal (Qbeginning_of_buffer, Qnil); | |
3122 | } | |
3123 | ||
3124 | /* Set the window start, and set up the window for redisplay. */ | |
3125 | set_marker_restricted (w->start, make_number (IT_CHARPOS (it)), w->buffer); | |
3126 | w->start_at_line_beg = Fbolp (); | |
3127 | w->update_mode_line = Qt; | |
3128 | XSETFASTINT (w->last_modified, 0); | |
3129 | XSETFASTINT (w->last_overlay_modified, 0); | |
3130 | /* Set force_start so that redisplay_window will run the | |
3131 | window-scroll-functions. */ | |
3132 | w->force_start = Qt; | |
3133 | ||
3134 | it.current_y = it.vpos = 0; | |
3135 | ||
3136 | /* Preserve the screen position if we must. */ | |
3137 | if (preserve_y >= 0) | |
3138 | { | |
3139 | move_it_to (&it, -1, -1, preserve_y, -1, MOVE_TO_Y); | |
3140 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); | |
3141 | } | |
3142 | else | |
3143 | { | |
3144 | /* Move PT out of scroll margins. */ | |
3145 | this_scroll_margin = max (0, scroll_margin); | |
3146 | this_scroll_margin = min (this_scroll_margin, XFASTINT (w->height) / 4); | |
3147 | this_scroll_margin *= CANON_Y_UNIT (it.f); | |
3148 | ||
3149 | if (n > 0) | |
3150 | { | |
3151 | /* We moved the window start towards ZV, so PT may be now | |
3152 | in the scroll margin at the top. */ | |
3153 | move_it_to (&it, PT, -1, -1, -1, MOVE_TO_POS); | |
3154 | while (it.current_y < this_scroll_margin) | |
3155 | move_it_by_lines (&it, 1, 1); | |
3156 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); | |
3157 | } | |
3158 | else if (n < 0) | |
3159 | { | |
3160 | /* We moved the window start towards BEGV, so PT may be now | |
3161 | in the scroll margin at the bottom. */ | |
3162 | move_it_to (&it, PT, -1, | |
3163 | it.last_visible_y - this_scroll_margin - 1, -1, | |
3164 | MOVE_TO_POS | MOVE_TO_Y); | |
3165 | ||
3166 | /* Don't put point on a partially visible line at the end. */ | |
3167 | if (it.current_y + it.max_ascent + it.max_descent | |
3168 | > it.last_visible_y) | |
3169 | move_it_by_lines (&it, -1, 0); | |
3170 | ||
3171 | SET_PT_BOTH (IT_CHARPOS (it), IT_BYTEPOS (it)); | |
3172 | } | |
3173 | } | |
3174 | } | |
3175 | ||
3176 | ||
3177 | /* Implementation of window_scroll that works based on screen lines. | |
3178 | See the comment of window_scroll for parameter descriptions. */ | |
3179 | ||
3180 | static void | |
3181 | window_scroll_line_based (window, n, whole, noerror) | |
3182 | Lisp_Object window; | |
3183 | int n; | |
3184 | int whole; | |
3185 | int noerror; | |
7ab12479 JB |
3186 | { |
3187 | register struct window *w = XWINDOW (window); | |
5500c422 | 3188 | register int opoint = PT, opoint_byte = PT_BYTE; |
b73ea88e | 3189 | register int pos, pos_byte; |
7ab12479 JB |
3190 | register int ht = window_internal_height (w); |
3191 | register Lisp_Object tem; | |
3192 | int lose; | |
5500c422 | 3193 | Lisp_Object bolp; |
345d45b2 | 3194 | int startpos; |
101d1605 RS |
3195 | struct position posit; |
3196 | int original_vpos; | |
3197 | ||
3198 | startpos = marker_position (w->start); | |
3199 | ||
3200 | posit = *compute_motion (startpos, 0, 0, 0, | |
3201 | PT, ht, 0, | |
3202 | window_internal_width (w), XINT (w->hscroll), | |
3203 | 0, w); | |
3204 | original_vpos = posit.vpos; | |
0a1f771a | 3205 | |
d834a2e9 | 3206 | XSETFASTINT (tem, PT); |
7ab12479 JB |
3207 | tem = Fpos_visible_in_window_p (tem, window); |
3208 | ||
265a9e55 | 3209 | if (NILP (tem)) |
7ab12479 | 3210 | { |
cd2be1dd | 3211 | Fvertical_motion (make_number (- (ht / 2)), window); |
345d45b2 | 3212 | startpos = PT; |
7ab12479 JB |
3213 | } |
3214 | ||
345d45b2 | 3215 | SET_PT (startpos); |
5ce7b543 | 3216 | lose = n < 0 && PT == BEGV; |
540b6aa0 | 3217 | Fvertical_motion (make_number (n), window); |
5ce7b543 | 3218 | pos = PT; |
b73ea88e | 3219 | pos_byte = PT_BYTE; |
7ab12479 | 3220 | bolp = Fbolp (); |
b73ea88e | 3221 | SET_PT_BOTH (opoint, opoint_byte); |
7ab12479 JB |
3222 | |
3223 | if (lose) | |
f8026fd8 JB |
3224 | { |
3225 | if (noerror) | |
3226 | return; | |
3227 | else | |
3228 | Fsignal (Qbeginning_of_buffer, Qnil); | |
3229 | } | |
7ab12479 JB |
3230 | |
3231 | if (pos < ZV) | |
7ab12479 | 3232 | { |
0c7da84e RS |
3233 | int this_scroll_margin = scroll_margin; |
3234 | ||
3235 | /* Don't use a scroll margin that is negative or too large. */ | |
3236 | if (this_scroll_margin < 0) | |
3237 | this_scroll_margin = 0; | |
3238 | ||
3239 | if (XINT (w->height) < 4 * scroll_margin) | |
3240 | this_scroll_margin = XINT (w->height) / 4; | |
3241 | ||
b73ea88e | 3242 | set_marker_restricted_both (w->start, w->buffer, pos, pos_byte); |
7ab12479 JB |
3243 | w->start_at_line_beg = bolp; |
3244 | w->update_mode_line = Qt; | |
d834a2e9 | 3245 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 3246 | XSETFASTINT (w->last_overlay_modified, 0); |
345d45b2 RS |
3247 | /* Set force_start so that redisplay_window will run |
3248 | the window-scroll-functions. */ | |
3249 | w->force_start = Qt; | |
0c7da84e | 3250 | |
5500c422 | 3251 | if (whole && !NILP (Vscroll_preserve_screen_position)) |
0c7da84e | 3252 | { |
b73ea88e | 3253 | SET_PT_BOTH (pos, pos_byte); |
101d1605 | 3254 | Fvertical_motion (make_number (original_vpos), window); |
0c7da84e | 3255 | } |
101d1605 RS |
3256 | /* If we scrolled forward, put point enough lines down |
3257 | that it is outside the scroll margin. */ | |
3258 | else if (n > 0) | |
0c7da84e | 3259 | { |
101d1605 RS |
3260 | int top_margin; |
3261 | ||
3262 | if (this_scroll_margin > 0) | |
3263 | { | |
b73ea88e | 3264 | SET_PT_BOTH (pos, pos_byte); |
101d1605 RS |
3265 | Fvertical_motion (make_number (this_scroll_margin), window); |
3266 | top_margin = PT; | |
3267 | } | |
3268 | else | |
3269 | top_margin = pos; | |
3270 | ||
3271 | if (top_margin <= opoint) | |
b73ea88e | 3272 | SET_PT_BOTH (opoint, opoint_byte); |
5500c422 | 3273 | else if (!NILP (Vscroll_preserve_screen_position)) |
101d1605 | 3274 | { |
b73ea88e | 3275 | SET_PT_BOTH (pos, pos_byte); |
101d1605 RS |
3276 | Fvertical_motion (make_number (original_vpos), window); |
3277 | } | |
9317a85d | 3278 | else |
335406fc | 3279 | SET_PT (top_margin); |
0c7da84e | 3280 | } |
101d1605 | 3281 | else if (n < 0) |
7ab12479 | 3282 | { |
101d1605 RS |
3283 | int bottom_margin; |
3284 | ||
0c7da84e RS |
3285 | /* If we scrolled backward, put point near the end of the window |
3286 | but not within the scroll margin. */ | |
b73ea88e | 3287 | SET_PT_BOTH (pos, pos_byte); |
0c7da84e | 3288 | tem = Fvertical_motion (make_number (ht - this_scroll_margin), window); |
101d1605 RS |
3289 | if (XFASTINT (tem) == ht - this_scroll_margin) |
3290 | bottom_margin = PT; | |
3291 | else | |
3292 | bottom_margin = PT + 1; | |
3293 | ||
3294 | if (bottom_margin > opoint) | |
b73ea88e | 3295 | SET_PT_BOTH (opoint, opoint_byte); |
7ab12479 | 3296 | else |
101d1605 | 3297 | { |
5500c422 | 3298 | if (!NILP (Vscroll_preserve_screen_position)) |
9317a85d | 3299 | { |
b73ea88e | 3300 | SET_PT_BOTH (pos, pos_byte); |
9317a85d RS |
3301 | Fvertical_motion (make_number (original_vpos), window); |
3302 | } | |
3303 | else | |
3304 | Fvertical_motion (make_number (-1), window); | |
101d1605 | 3305 | } |
7ab12479 JB |
3306 | } |
3307 | } | |
3308 | else | |
f8026fd8 JB |
3309 | { |
3310 | if (noerror) | |
3311 | return; | |
3312 | else | |
3313 | Fsignal (Qend_of_buffer, Qnil); | |
3314 | } | |
7ab12479 | 3315 | } |
5500c422 GM |
3316 | |
3317 | ||
3318 | /* Scroll selected_window up or down. If N is nil, scroll a | |
3319 | screen-full which is defined as the height of the window minus | |
3320 | next_screen_context_lines. If N is the symbol `-', scroll. | |
3321 | DIRECTION may be 1 meaning to scroll down, or -1 meaning to scroll | |
3322 | up. This is the guts of Fscroll_up and Fscroll_down. */ | |
7ab12479 JB |
3323 | |
3324 | static void | |
3325 | scroll_command (n, direction) | |
5500c422 | 3326 | Lisp_Object n; |
7ab12479 JB |
3327 | int direction; |
3328 | { | |
3329 | register int defalt; | |
3330 | int count = specpdl_ptr - specpdl; | |
3331 | ||
5500c422 GM |
3332 | xassert (abs (direction) == 1); |
3333 | ||
3334 | /* If selected window's buffer isn't current, make it current for | |
3335 | the moment. But don't screw up if window_scroll gets an error. */ | |
7ab12479 | 3336 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
95605e15 JB |
3337 | { |
3338 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
3339 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
5500c422 GM |
3340 | |
3341 | /* Make redisplay consider other windows than just selected_window. */ | |
3342 | ++windows_or_buffers_changed; | |
95605e15 | 3343 | } |
7ab12479 JB |
3344 | |
3345 | defalt = (window_internal_height (XWINDOW (selected_window)) | |
3346 | - next_screen_context_lines); | |
3347 | defalt = direction * (defalt < 1 ? 1 : defalt); | |
3348 | ||
265a9e55 | 3349 | if (NILP (n)) |
101d1605 | 3350 | window_scroll (selected_window, defalt, 1, 0); |
7ab12479 | 3351 | else if (EQ (n, Qminus)) |
101d1605 | 3352 | window_scroll (selected_window, - defalt, 1, 0); |
7ab12479 JB |
3353 | else |
3354 | { | |
3355 | n = Fprefix_numeric_value (n); | |
101d1605 | 3356 | window_scroll (selected_window, XINT (n) * direction, 0, 0); |
7ab12479 | 3357 | } |
95605e15 JB |
3358 | |
3359 | unbind_to (count, Qnil); | |
7ab12479 JB |
3360 | } |
3361 | ||
3362 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "P", | |
3363 | "Scroll text of current window upward ARG lines; or near full screen if no ARG.\n\ | |
3364 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
279e0e0c | 3365 | Negative ARG means scroll downward.\n\ |
dd394ff9 KH |
3366 | If ARG is the atom `-', scroll downward by nearly full screen.\n\ |
3367 | When calling from a program, supply as argument a number, nil, or `-'.") | |
413430c5 EN |
3368 | (arg) |
3369 | Lisp_Object arg; | |
7ab12479 | 3370 | { |
413430c5 | 3371 | scroll_command (arg, 1); |
7ab12479 JB |
3372 | return Qnil; |
3373 | } | |
3374 | ||
3375 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "P", | |
a5fcbc4e | 3376 | "Scroll text of current window down ARG lines; or near full screen if no ARG.\n\ |
7ab12479 | 3377 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ |
279e0e0c | 3378 | Negative ARG means scroll upward.\n\ |
dd394ff9 KH |
3379 | If ARG is the atom `-', scroll upward by nearly full screen.\n\ |
3380 | When calling from a program, supply as argument a number, nil, or `-'.") | |
413430c5 EN |
3381 | (arg) |
3382 | Lisp_Object arg; | |
7ab12479 | 3383 | { |
413430c5 | 3384 | scroll_command (arg, -1); |
7ab12479 JB |
3385 | return Qnil; |
3386 | } | |
ccd0664b RS |
3387 | \f |
3388 | DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0, | |
3389 | "Return the other window for \"other window scroll\" commands.\n\ | |
77b24de6 | 3390 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ |
ccd0664b RS |
3391 | specifies the window.\n\ |
3392 | If `other-window-scroll-buffer' is non-nil, a window\n\ | |
3393 | showing that buffer is used.") | |
eb16ec06 | 3394 | () |
7ab12479 | 3395 | { |
ccd0664b | 3396 | Lisp_Object window; |
7ab12479 JB |
3397 | |
3398 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 3399 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
3400 | window = Vminibuf_scroll_window; |
3401 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 3402 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
3403 | { |
3404 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 3405 | if (NILP (window)) |
53f76081 | 3406 | window = Fdisplay_buffer (Vother_window_scroll_buffer, Qt, Qnil); |
7ab12479 JB |
3407 | } |
3408 | else | |
dbc4e1c1 JB |
3409 | { |
3410 | /* Nothing specified; look for a neighboring window on the same | |
3411 | frame. */ | |
3412 | window = Fnext_window (selected_window, Qnil, Qnil); | |
3413 | ||
3414 | if (EQ (window, selected_window)) | |
3415 | /* That didn't get us anywhere; look for a window on another | |
3416 | visible frame. */ | |
3417 | do | |
3418 | window = Fnext_window (window, Qnil, Qt); | |
3419 | while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
3420 | && ! EQ (window, selected_window)); | |
3421 | } | |
3422 | ||
605be8af | 3423 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
3424 | |
3425 | if (EQ (window, selected_window)) | |
3426 | error ("There is no other window"); | |
3427 | ||
ccd0664b RS |
3428 | return window; |
3429 | } | |
3430 | ||
3431 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
3432 | "Scroll next window upward ARG lines; or near full screen if no ARG.\n\ | |
dd394ff9 | 3433 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ |
ccd0664b RS |
3434 | The next window is the one below the current one; or the one at the top\n\ |
3435 | if the current one is at the bottom. Negative ARG means scroll downward.\n\ | |
dd394ff9 KH |
3436 | If ARG is the atom `-', scroll downward by nearly full screen.\n\ |
3437 | When calling from a program, supply as argument a number, nil, or `-'.\n\ | |
ccd0664b RS |
3438 | \n\ |
3439 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ | |
3440 | specifies the window to scroll.\n\ | |
3441 | If `other-window-scroll-buffer' is non-nil, scroll the window\n\ | |
3442 | showing that buffer, popping the buffer up if necessary.") | |
413430c5 EN |
3443 | (arg) |
3444 | register Lisp_Object arg; | |
ccd0664b RS |
3445 | { |
3446 | register Lisp_Object window; | |
2f787aa3 | 3447 | register int defalt; |
ccd0664b RS |
3448 | register struct window *w; |
3449 | register int count = specpdl_ptr - specpdl; | |
3450 | ||
3451 | window = Fother_window_for_scrolling (); | |
3452 | ||
7ab12479 | 3453 | w = XWINDOW (window); |
2f787aa3 KH |
3454 | defalt = window_internal_height (w) - next_screen_context_lines; |
3455 | if (defalt < 1) defalt = 1; | |
7ab12479 JB |
3456 | |
3457 | /* Don't screw up if window_scroll gets an error. */ | |
3458 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
5500c422 | 3459 | ++windows_or_buffers_changed; |
7ab12479 JB |
3460 | |
3461 | Fset_buffer (w->buffer); | |
3462 | SET_PT (marker_position (w->pointm)); | |
3463 | ||
413430c5 | 3464 | if (NILP (arg)) |
101d1605 | 3465 | window_scroll (window, defalt, 1, 1); |
413430c5 | 3466 | else if (EQ (arg, Qminus)) |
101d1605 | 3467 | window_scroll (window, -defalt, 1, 1); |
7ab12479 JB |
3468 | else |
3469 | { | |
413430c5 EN |
3470 | if (CONSP (arg)) |
3471 | arg = Fcar (arg); | |
3472 | CHECK_NUMBER (arg, 0); | |
101d1605 | 3473 | window_scroll (window, XINT (arg), 0, 1); |
7ab12479 JB |
3474 | } |
3475 | ||
b73ea88e | 3476 | set_marker_both (w->pointm, Qnil, PT, PT_BYTE); |
f4e7b2c2 | 3477 | unbind_to (count, Qnil); |
7ab12479 JB |
3478 | |
3479 | return Qnil; | |
3480 | } | |
3481 | \f | |
644b477c | 3482 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 1, "P", |
7ab12479 JB |
3483 | "Scroll selected window display ARG columns left.\n\ |
3484 | Default for ARG is window width minus 2.") | |
3485 | (arg) | |
3486 | register Lisp_Object arg; | |
3487 | { | |
3488 | ||
265a9e55 | 3489 | if (NILP (arg)) |
d834a2e9 | 3490 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
3491 | else |
3492 | arg = Fprefix_numeric_value (arg); | |
3493 | ||
3494 | return | |
3495 | Fset_window_hscroll (selected_window, | |
3496 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
3497 | + XINT (arg))); | |
3498 | } | |
3499 | ||
644b477c | 3500 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 1, "P", |
7ab12479 JB |
3501 | "Scroll selected window display ARG columns right.\n\ |
3502 | Default for ARG is window width minus 2.") | |
3503 | (arg) | |
3504 | register Lisp_Object arg; | |
3505 | { | |
265a9e55 | 3506 | if (NILP (arg)) |
d834a2e9 | 3507 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
3508 | else |
3509 | arg = Fprefix_numeric_value (arg); | |
3510 | ||
3511 | return | |
3512 | Fset_window_hscroll (selected_window, | |
3513 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
3514 | - XINT (arg))); | |
3515 | } | |
3516 | ||
3517 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", | |
44fa5b1e | 3518 | "Center point in window and redisplay frame. With ARG, put point on line ARG.\n\ |
7ab12479 | 3519 | The desired position of point is always relative to the current window.\n\ |
44fa5b1e | 3520 | Just C-u as prefix means put point in the center of the window.\n\ |
413430c5 | 3521 | If ARG is omitted or nil, erases the entire frame and then\n\ |
44fa5b1e | 3522 | redraws with point in the center of the current window.") |
413430c5 EN |
3523 | (arg) |
3524 | register Lisp_Object arg; | |
7ab12479 JB |
3525 | { |
3526 | register struct window *w = XWINDOW (selected_window); | |
3527 | register int ht = window_internal_height (w); | |
113d9015 | 3528 | struct position pos; |
478292ed RS |
3529 | struct buffer *buf = XBUFFER (w->buffer); |
3530 | struct buffer *obuf = current_buffer; | |
7ab12479 | 3531 | |
413430c5 | 3532 | if (NILP (arg)) |
7ab12479 | 3533 | { |
44fa5b1e | 3534 | extern int frame_garbaged; |
7ab12479 | 3535 | |
44fa5b1e | 3536 | SET_FRAME_GARBAGED (XFRAME (WINDOW_FRAME (w))); |
413430c5 | 3537 | XSETFASTINT (arg, ht / 2); |
7ab12479 | 3538 | } |
413430c5 | 3539 | else if (CONSP (arg)) /* Just C-u. */ |
7ab12479 | 3540 | { |
413430c5 | 3541 | XSETFASTINT (arg, ht / 2); |
7ab12479 JB |
3542 | } |
3543 | else | |
3544 | { | |
413430c5 EN |
3545 | arg = Fprefix_numeric_value (arg); |
3546 | CHECK_NUMBER (arg, 0); | |
7ab12479 JB |
3547 | } |
3548 | ||
413430c5 EN |
3549 | if (XINT (arg) < 0) |
3550 | XSETINT (arg, XINT (arg) + ht); | |
7ab12479 | 3551 | |
478292ed | 3552 | set_buffer_internal (buf); |
6ec8bbd2 | 3553 | pos = *vmotion (PT, - XINT (arg), w); |
7ab12479 | 3554 | |
b73ea88e RS |
3555 | set_marker_both (w->start, w->buffer, pos.bufpos, pos.bytepos); |
3556 | w->start_at_line_beg = ((pos.bytepos == BEGV_BYTE | |
3557 | || FETCH_BYTE (pos.bytepos - 1) == '\n') | |
113d9015 | 3558 | ? Qt : Qnil); |
7ab12479 | 3559 | w->force_start = Qt; |
478292ed | 3560 | set_buffer_internal (obuf); |
7ab12479 JB |
3561 | |
3562 | return Qnil; | |
3563 | } | |
3564 | \f | |
3565 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
3566 | 1, 1, "P", | |
3567 | "Position point relative to window.\n\ | |
19e3bf0a | 3568 | With no argument, position point at center of window.\n\ |
d81724c7 RS |
3569 | An argument specifies vertical position within the window;\n\ |
3570 | zero means top of window, negative means relative to bottom of window.") | |
7ab12479 JB |
3571 | (arg) |
3572 | register Lisp_Object arg; | |
3573 | { | |
3574 | register struct window *w = XWINDOW (selected_window); | |
3575 | register int height = window_internal_height (w); | |
3576 | register int start; | |
540b6aa0 | 3577 | Lisp_Object window; |
7ab12479 | 3578 | |
265a9e55 | 3579 | if (NILP (arg)) |
d834a2e9 | 3580 | XSETFASTINT (arg, height / 2); |
7ab12479 JB |
3581 | else |
3582 | { | |
3583 | arg = Fprefix_numeric_value (arg); | |
3584 | if (XINT (arg) < 0) | |
3585 | XSETINT (arg, XINT (arg) + height); | |
3586 | } | |
3587 | ||
3588 | start = marker_position (w->start); | |
74112613 | 3589 | XSETWINDOW (window, w); |
7ab12479 JB |
3590 | if (start < BEGV || start > ZV) |
3591 | { | |
cd2be1dd | 3592 | Fvertical_motion (make_number (- (height / 2)), window); |
b73ea88e | 3593 | set_marker_both (w->start, w->buffer, PT, PT_BYTE); |
7ab12479 JB |
3594 | w->start_at_line_beg = Fbolp (); |
3595 | w->force_start = Qt; | |
3596 | } | |
3597 | else | |
b73ea88e | 3598 | Fgoto_char (w->start); |
7ab12479 | 3599 | |
540b6aa0 | 3600 | return Fvertical_motion (arg, window); |
7ab12479 | 3601 | } |
5500c422 GM |
3602 | |
3603 | ||
7ab12479 | 3604 | \f |
5500c422 GM |
3605 | /*********************************************************************** |
3606 | Window Configuration | |
3607 | ***********************************************************************/ | |
3608 | ||
7ab12479 JB |
3609 | struct save_window_data |
3610 | { | |
f5ccc0cc | 3611 | EMACS_INT size_from_Lisp_Vector_struct; |
7ab12479 | 3612 | struct Lisp_Vector *next_from_Lisp_Vector_struct; |
8f6ea2e9 | 3613 | Lisp_Object frame_width, frame_height, frame_menu_bar_lines; |
5500c422 | 3614 | Lisp_Object frame_toolbar_lines; |
bdc727bf | 3615 | Lisp_Object selected_frame; |
7ab12479 JB |
3616 | Lisp_Object current_window; |
3617 | Lisp_Object current_buffer; | |
3618 | Lisp_Object minibuf_scroll_window; | |
3619 | Lisp_Object root_window; | |
bdc727bf | 3620 | Lisp_Object focus_frame; |
756b6edc RS |
3621 | /* Record the values of window-min-width and window-min-height |
3622 | so that window sizes remain consistent with them. */ | |
3623 | Lisp_Object min_width, min_height; | |
cbff28e8 RS |
3624 | /* A vector, each of whose elements is a struct saved_window |
3625 | for one window. */ | |
7ab12479 JB |
3626 | Lisp_Object saved_windows; |
3627 | }; | |
ff06df24 | 3628 | |
cbff28e8 | 3629 | /* This is saved as a Lisp_Vector */ |
7ab12479 JB |
3630 | struct saved_window |
3631 | { | |
3632 | /* these first two must agree with struct Lisp_Vector in lisp.h */ | |
f5ccc0cc | 3633 | EMACS_INT size_from_Lisp_Vector_struct; |
7ab12479 JB |
3634 | struct Lisp_Vector *next_from_Lisp_Vector_struct; |
3635 | ||
3636 | Lisp_Object window; | |
3637 | Lisp_Object buffer, start, pointm, mark; | |
3638 | Lisp_Object left, top, width, height, hscroll; | |
3639 | Lisp_Object parent, prev; | |
3640 | Lisp_Object start_at_line_beg; | |
3641 | Lisp_Object display_table; | |
3642 | }; | |
3643 | #define SAVED_WINDOW_VECTOR_SIZE 14 /* Arg to Fmake_vector */ | |
3644 | ||
3645 | #define SAVED_WINDOW_N(swv,n) \ | |
3646 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) | |
3647 | ||
3648 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
cbff28e8 | 3649 | "Return t if OBJECT is a window-configuration object.") |
413430c5 EN |
3650 | (object) |
3651 | Lisp_Object object; | |
7ab12479 | 3652 | { |
413430c5 | 3653 | if (WINDOW_CONFIGURATIONP (object)) |
7ab12479 JB |
3654 | return Qt; |
3655 | return Qnil; | |
3656 | } | |
3657 | ||
3f8ab7bd RS |
3658 | DEFUN ("window-configuration-frame", Fwindow_configuration_frame, Swindow_configuration_frame, 1, 1, 0, |
3659 | "Return the frame that CONFIG, a window-configuration object, is about.") | |
3660 | (config) | |
3661 | Lisp_Object config; | |
3662 | { | |
3663 | register struct save_window_data *data; | |
3664 | struct Lisp_Vector *saved_windows; | |
3665 | ||
3666 | if (! WINDOW_CONFIGURATIONP (config)) | |
3667 | wrong_type_argument (Qwindow_configuration_p, config); | |
3668 | ||
3669 | data = (struct save_window_data *) XVECTOR (config); | |
3670 | saved_windows = XVECTOR (data->saved_windows); | |
3671 | return XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; | |
3672 | } | |
3673 | ||
d5b2799e RS |
3674 | DEFUN ("set-window-configuration", Fset_window_configuration, |
3675 | Sset_window_configuration, 1, 1, 0, | |
7ab12479 JB |
3676 | "Set the configuration of windows and buffers as specified by CONFIGURATION.\n\ |
3677 | CONFIGURATION must be a value previously returned\n\ | |
3f8ab7bd RS |
3678 | by `current-window-configuration' (which see).\n\ |
3679 | If CONFIGURATION was made from a frame that is now deleted,\n\ | |
3680 | only frame-independent values can be restored. In this case,\n\ | |
3681 | the return value is nil. Otherwise the value is t.") | |
3682 | (configuration) | |
2f83aebe | 3683 | Lisp_Object configuration; |
7ab12479 | 3684 | { |
7ab12479 JB |
3685 | register struct save_window_data *data; |
3686 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 3687 | Lisp_Object new_current_buffer; |
fd482be5 | 3688 | Lisp_Object frame; |
44fa5b1e | 3689 | FRAME_PTR f; |
d2b35234 | 3690 | int old_point = -1; |
7ab12479 | 3691 | |
017b2bad | 3692 | while (!WINDOW_CONFIGURATIONP (configuration)) |
3f8ab7bd | 3693 | wrong_type_argument (Qwindow_configuration_p, configuration); |
7ab12479 | 3694 | |
2f83aebe | 3695 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
3696 | saved_windows = XVECTOR (data->saved_windows); |
3697 | ||
7ab12479 | 3698 | new_current_buffer = data->current_buffer; |
265a9e55 | 3699 | if (NILP (XBUFFER (new_current_buffer)->name)) |
7ab12479 | 3700 | new_current_buffer = Qnil; |
d2b35234 RS |
3701 | else |
3702 | { | |
3703 | if (XBUFFER (new_current_buffer) == current_buffer) | |
3704 | old_point = PT; | |
cbff28e8 | 3705 | |
d2b35234 | 3706 | } |
7ab12479 | 3707 | |
fd482be5 JB |
3708 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
3709 | f = XFRAME (frame); | |
9ace597f | 3710 | |
fd482be5 JB |
3711 | /* If f is a dead frame, don't bother rebuilding its window tree. |
3712 | However, there is other stuff we should still try to do below. */ | |
3713 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 3714 | { |
fd482be5 JB |
3715 | register struct window *w; |
3716 | register struct saved_window *p; | |
5500c422 GM |
3717 | struct window *root_window; |
3718 | struct window **leaf_windows; | |
3719 | int n_leaf_windows; | |
3720 | int k, i; | |
fd482be5 JB |
3721 | |
3722 | /* If the frame has been resized since this window configuration was | |
3723 | made, we change the frame to the size specified in the | |
3724 | configuration, restore the configuration, and then resize it | |
3725 | back. We keep track of the prevailing height in these variables. */ | |
3726 | int previous_frame_height = FRAME_HEIGHT (f); | |
3727 | int previous_frame_width = FRAME_WIDTH (f); | |
8f6ea2e9 | 3728 | int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); |
5500c422 | 3729 | int previous_frame_toolbar_lines = FRAME_TOOLBAR_LINES (f); |
fd482be5 | 3730 | |
d2b35234 RS |
3731 | /* The mouse highlighting code could get screwed up |
3732 | if it runs during this. */ | |
3733 | BLOCK_INPUT; | |
3734 | ||
fd482be5 JB |
3735 | if (XFASTINT (data->frame_height) != previous_frame_height |
3736 | || XFASTINT (data->frame_width) != previous_frame_width) | |
f8ad443a AS |
3737 | change_frame_size (f, XFASTINT (data->frame_height), |
3738 | XFASTINT (data->frame_width), 0, 0); | |
e3678b64 | 3739 | #if defined (HAVE_WINDOW_SYSTEM) || defined (MSDOS) |
8f6ea2e9 KH |
3740 | if (XFASTINT (data->frame_menu_bar_lines) |
3741 | != previous_frame_menu_bar_lines) | |
f8ad443a | 3742 | x_set_menu_bar_lines (f, data->frame_menu_bar_lines, make_number (0)); |
4314246f | 3743 | #ifdef HAVE_WINDOW_SYSTEM |
5500c422 GM |
3744 | if (XFASTINT (data->frame_toolbar_lines) |
3745 | != previous_frame_toolbar_lines) | |
3746 | x_set_toolbar_lines (f, data->frame_toolbar_lines, make_number (0)); | |
4314246f | 3747 | #endif |
217f2871 | 3748 | #endif |
fd482be5 | 3749 | |
596ae0cf RS |
3750 | if (! NILP (XWINDOW (selected_window)->buffer)) |
3751 | { | |
3752 | w = XWINDOW (selected_window); | |
3753 | set_marker_both (w->pointm, | |
3754 | w->buffer, | |
3755 | BUF_PT (XBUFFER (w->buffer)), | |
3756 | BUF_PT_BYTE (XBUFFER (w->buffer))); | |
3757 | } | |
3758 | ||
fd482be5 | 3759 | windows_or_buffers_changed++; |
29aeee73 | 3760 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
fd482be5 | 3761 | |
5500c422 GM |
3762 | /* Problem: Freeing all matrices and later allocating them again |
3763 | is a serious redisplay flickering problem. What we would | |
3764 | really like to do is to free only those matrices not reused | |
3765 | below. */ | |
3766 | root_window = XWINDOW (FRAME_ROOT_WINDOW (f)); | |
3767 | leaf_windows | |
3768 | = (struct window **) alloca (count_windows (root_window) | |
3769 | * sizeof (struct window *)); | |
3770 | n_leaf_windows = get_leaf_windows (root_window, leaf_windows, 0); | |
3771 | ||
756b6edc RS |
3772 | /* Temporarily avoid any problems with windows that are smaller |
3773 | than they are supposed to be. */ | |
3774 | window_min_height = 1; | |
3775 | window_min_width = 1; | |
3776 | ||
fd482be5 JB |
3777 | /* Kludge Alert! |
3778 | Mark all windows now on frame as "deleted". | |
3779 | Restoring the new configuration "undeletes" any that are in it. | |
37962e60 | 3780 | |
fd482be5 JB |
3781 | Save their current buffers in their height fields, since we may |
3782 | need it later, if a buffer saved in the configuration is now | |
3783 | dead. */ | |
3784 | delete_all_subwindows (XWINDOW (FRAME_ROOT_WINDOW (f))); | |
3785 | ||
3786 | for (k = 0; k < saved_windows->size; k++) | |
3787 | { | |
3788 | p = SAVED_WINDOW_N (saved_windows, k); | |
3789 | w = XWINDOW (p->window); | |
3790 | w->next = Qnil; | |
7ab12479 | 3791 | |
fd482be5 JB |
3792 | if (!NILP (p->parent)) |
3793 | w->parent = SAVED_WINDOW_N (saved_windows, | |
3794 | XFASTINT (p->parent))->window; | |
3795 | else | |
3796 | w->parent = Qnil; | |
7ab12479 | 3797 | |
fd482be5 | 3798 | if (!NILP (p->prev)) |
7ab12479 | 3799 | { |
fd482be5 JB |
3800 | w->prev = SAVED_WINDOW_N (saved_windows, |
3801 | XFASTINT (p->prev))->window; | |
3802 | XWINDOW (w->prev)->next = p->window; | |
3803 | } | |
3804 | else | |
3805 | { | |
3806 | w->prev = Qnil; | |
3807 | if (!NILP (w->parent)) | |
3808 | { | |
3809 | if (EQ (p->width, XWINDOW (w->parent)->width)) | |
3810 | { | |
3811 | XWINDOW (w->parent)->vchild = p->window; | |
3812 | XWINDOW (w->parent)->hchild = Qnil; | |
3813 | } | |
3814 | else | |
3815 | { | |
3816 | XWINDOW (w->parent)->hchild = p->window; | |
3817 | XWINDOW (w->parent)->vchild = Qnil; | |
3818 | } | |
3819 | } | |
3820 | } | |
3821 | ||
3822 | /* If we squirreled away the buffer in the window's height, | |
3823 | restore it now. */ | |
017b2bad | 3824 | if (BUFFERP (w->height)) |
fd482be5 JB |
3825 | w->buffer = w->height; |
3826 | w->left = p->left; | |
3827 | w->top = p->top; | |
3828 | w->width = p->width; | |
3829 | w->height = p->height; | |
3830 | w->hscroll = p->hscroll; | |
3831 | w->display_table = p->display_table; | |
d834a2e9 | 3832 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 3833 | XSETFASTINT (w->last_overlay_modified, 0); |
fd482be5 JB |
3834 | |
3835 | /* Reinstall the saved buffer and pointers into it. */ | |
3836 | if (NILP (p->buffer)) | |
3837 | w->buffer = p->buffer; | |
3838 | else | |
3839 | { | |
3840 | if (!NILP (XBUFFER (p->buffer)->name)) | |
3841 | /* If saved buffer is alive, install it. */ | |
3842 | { | |
3843 | w->buffer = p->buffer; | |
3844 | w->start_at_line_beg = p->start_at_line_beg; | |
b73ea88e RS |
3845 | set_marker_restricted (w->start, p->start, w->buffer); |
3846 | set_marker_restricted (w->pointm, p->pointm, w->buffer); | |
fd482be5 | 3847 | Fset_marker (XBUFFER (w->buffer)->mark, |
b73ea88e | 3848 | p->mark, w->buffer); |
fd482be5 JB |
3849 | |
3850 | /* As documented in Fcurrent_window_configuration, don't | |
3851 | save the location of point in the buffer which was current | |
3852 | when the window configuration was recorded. */ | |
6b54027b RS |
3853 | if (!EQ (p->buffer, new_current_buffer) |
3854 | && XBUFFER (p->buffer) == current_buffer) | |
fd482be5 JB |
3855 | Fgoto_char (w->pointm); |
3856 | } | |
52a68e98 RS |
3857 | else if (NILP (w->buffer) || NILP (XBUFFER (w->buffer)->name)) |
3858 | /* Else unless window has a live buffer, get one. */ | |
7ab12479 | 3859 | { |
fd482be5 JB |
3860 | w->buffer = Fcdr (Fcar (Vbuffer_alist)); |
3861 | /* This will set the markers to beginning of visible | |
3862 | range. */ | |
3863 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
3864 | set_marker_restricted (w->pointm, make_number (0),w->buffer); | |
3865 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
3866 | } |
3867 | else | |
fd482be5 | 3868 | /* Keeping window's old buffer; make sure the markers |
52a68e98 | 3869 | are real. */ |
7ab12479 | 3870 | { |
fd482be5 JB |
3871 | /* Set window markers at start of visible range. */ |
3872 | if (XMARKER (w->start)->buffer == 0) | |
3873 | set_marker_restricted (w->start, make_number (0), | |
3874 | w->buffer); | |
3875 | if (XMARKER (w->pointm)->buffer == 0) | |
b73ea88e RS |
3876 | set_marker_restricted_both (w->pointm, w->buffer, |
3877 | BUF_PT (XBUFFER (w->buffer)), | |
3878 | BUF_PT_BYTE (XBUFFER (w->buffer))); | |
fd482be5 | 3879 | w->start_at_line_beg = Qt; |
7ab12479 JB |
3880 | } |
3881 | } | |
3882 | } | |
9ace597f | 3883 | |
fd482be5 JB |
3884 | FRAME_ROOT_WINDOW (f) = data->root_window; |
3885 | Fselect_window (data->current_window); | |
396a830c RS |
3886 | XBUFFER (XWINDOW (selected_window)->buffer)->last_selected_window |
3887 | = selected_window; | |
7ab12479 | 3888 | |
db269683 | 3889 | if (NILP (data->focus_frame) |
017b2bad | 3890 | || (FRAMEP (data->focus_frame) |
db269683 JB |
3891 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) |
3892 | Fredirect_frame_focus (frame, data->focus_frame); | |
7ab12479 | 3893 | |
fd482be5 JB |
3894 | #if 0 /* I don't understand why this is needed, and it causes problems |
3895 | when the frame's old selected window has been deleted. */ | |
e4e59717 | 3896 | if (f != selected_frame && FRAME_WINDOW_P (f)) |
9a7c6fc3 RS |
3897 | do_switch_frame (WINDOW_FRAME (XWINDOW (data->root_window)), |
3898 | Qnil, 0); | |
fd482be5 JB |
3899 | #endif |
3900 | ||
3901 | /* Set the screen height to the value it had before this function. */ | |
3902 | if (previous_frame_height != FRAME_HEIGHT (f) | |
3903 | || previous_frame_width != FRAME_WIDTH (f)) | |
3904 | change_frame_size (f, previous_frame_height, previous_frame_width, | |
3905 | 0, 0); | |
e3678b64 | 3906 | #if defined (HAVE_WINDOW_SYSTEM) || defined (MSDOS) |
8f6ea2e9 | 3907 | if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f)) |
f8ad443a AS |
3908 | x_set_menu_bar_lines (f, make_number (previous_frame_menu_bar_lines), |
3909 | make_number (0)); | |
4314246f | 3910 | #ifdef HAVE_WINDOW_SYSTEM |
5500c422 GM |
3911 | if (previous_frame_toolbar_lines != FRAME_TOOLBAR_LINES (f)) |
3912 | x_set_toolbar_lines (f, make_number (previous_frame_toolbar_lines), | |
3913 | make_number (0)); | |
4314246f | 3914 | #endif |
217f2871 | 3915 | #endif |
d2b35234 | 3916 | |
5500c422 GM |
3917 | /* Now, free glyph matrices in windows that were not reused. */ |
3918 | for (i = 0; i < n_leaf_windows; ++i) | |
3919 | if (NILP (leaf_windows[i]->buffer)) | |
3920 | { | |
3921 | /* Assert it's not reused as a combination. */ | |
3922 | xassert (NILP (leaf_windows[i]->hchild) | |
3923 | && NILP (leaf_windows[i]->vchild)); | |
3924 | free_window_matrices (leaf_windows[i]); | |
3925 | SET_FRAME_GARBAGED (f); | |
3926 | } | |
3927 | ||
3928 | adjust_glyphs (f); | |
3929 | ||
d2b35234 | 3930 | UNBLOCK_INPUT; |
756b6edc | 3931 | |
478292ed RS |
3932 | /* Fselect_window will have made f the selected frame, so we |
3933 | reselect the proper frame here. Fhandle_switch_frame will change the | |
3934 | selected window too, but that doesn't make the call to | |
3935 | Fselect_window above totally superfluous; it still sets f's | |
3936 | selected window. */ | |
3937 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) | |
3938 | do_switch_frame (data->selected_frame, Qnil, 0); | |
3939 | ||
3940 | if (! NILP (Vwindow_configuration_change_hook) | |
3941 | && ! NILP (Vrun_hooks)) | |
3942 | call1 (Vrun_hooks, Qwindow_configuration_change_hook); | |
3943 | } | |
bdc727bf JB |
3944 | |
3945 | if (!NILP (new_current_buffer)) | |
d2b35234 RS |
3946 | { |
3947 | Fset_buffer (new_current_buffer); | |
3948 | ||
3949 | /* If the buffer that is current now is the same | |
3950 | that was current before setting the window configuration, | |
3951 | don't alter its PT. */ | |
3952 | if (old_point >= 0) | |
3953 | SET_PT (old_point); | |
3954 | } | |
bdc727bf | 3955 | |
478292ed RS |
3956 | /* Restore the minimum heights recorded in the configuration. */ |
3957 | window_min_height = XINT (data->min_height); | |
3958 | window_min_width = XINT (data->min_width); | |
543f5fb1 | 3959 | |
478292ed | 3960 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
543f5fb1 | 3961 | |
3f8ab7bd | 3962 | return (FRAME_LIVE_P (f) ? Qt : Qnil); |
7ab12479 JB |
3963 | } |
3964 | ||
44fa5b1e | 3965 | /* Mark all windows now on frame as deleted |
7ab12479 JB |
3966 | by setting their buffers to nil. */ |
3967 | ||
fd482be5 | 3968 | void |
7ab12479 JB |
3969 | delete_all_subwindows (w) |
3970 | register struct window *w; | |
3971 | { | |
265a9e55 | 3972 | if (!NILP (w->next)) |
7ab12479 | 3973 | delete_all_subwindows (XWINDOW (w->next)); |
265a9e55 | 3974 | if (!NILP (w->vchild)) |
7ab12479 | 3975 | delete_all_subwindows (XWINDOW (w->vchild)); |
265a9e55 | 3976 | if (!NILP (w->hchild)) |
7ab12479 | 3977 | delete_all_subwindows (XWINDOW (w->hchild)); |
605be8af JB |
3978 | |
3979 | w->height = w->buffer; /* See Fset_window_configuration for excuse. */ | |
3980 | ||
86e48436 RS |
3981 | if (!NILP (w->buffer)) |
3982 | unshow_buffer (w); | |
3983 | ||
605be8af JB |
3984 | /* We set all three of these fields to nil, to make sure that we can |
3985 | distinguish this dead window from any live window. Live leaf | |
3986 | windows will have buffer set, and combination windows will have | |
3987 | vchild or hchild set. */ | |
3988 | w->buffer = Qnil; | |
3989 | w->vchild = Qnil; | |
3990 | w->hchild = Qnil; | |
7ab12479 JB |
3991 | } |
3992 | \f | |
3993 | static int | |
3994 | count_windows (window) | |
3995 | register struct window *window; | |
3996 | { | |
3997 | register int count = 1; | |
265a9e55 | 3998 | if (!NILP (window->next)) |
7ab12479 | 3999 | count += count_windows (XWINDOW (window->next)); |
265a9e55 | 4000 | if (!NILP (window->vchild)) |
7ab12479 | 4001 | count += count_windows (XWINDOW (window->vchild)); |
265a9e55 | 4002 | if (!NILP (window->hchild)) |
7ab12479 JB |
4003 | count += count_windows (XWINDOW (window->hchild)); |
4004 | return count; | |
4005 | } | |
4006 | ||
5500c422 GM |
4007 | |
4008 | /* Fill vector FLAT with leaf windows under W, starting at index I. | |
4009 | Value is last index + 1. */ | |
4010 | ||
4011 | static int | |
4012 | get_leaf_windows (w, flat, i) | |
4013 | struct window *w; | |
4014 | struct window **flat; | |
4015 | int i; | |
4016 | { | |
4017 | while (w) | |
4018 | { | |
4019 | if (!NILP (w->hchild)) | |
4020 | i = get_leaf_windows (XWINDOW (w->hchild), flat, i); | |
4021 | else if (!NILP (w->vchild)) | |
4022 | i = get_leaf_windows (XWINDOW (w->vchild), flat, i); | |
4023 | else | |
4024 | flat[i++] = w; | |
4025 | ||
4026 | w = NILP (w->next) ? 0 : XWINDOW (w->next); | |
4027 | } | |
4028 | ||
4029 | return i; | |
4030 | } | |
4031 | ||
4032 | ||
4033 | /* Return a pointer to the glyph W's physical cursor is on. Value is | |
4034 | null if W's current matrix is invalid, so that no meaningfull glyph | |
4035 | can be returned. */ | |
4036 | ||
4037 | struct glyph * | |
4038 | get_phys_cursor_glyph (w) | |
4039 | struct window *w; | |
4040 | { | |
4041 | struct glyph_row *row; | |
4042 | struct glyph *glyph; | |
4043 | ||
4044 | if (w->phys_cursor.vpos >= 0 | |
4045 | && w->phys_cursor.vpos < w->current_matrix->nrows | |
4046 | && (row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos), | |
4047 | row->enabled_p) | |
4048 | && row->used[TEXT_AREA] > w->phys_cursor.hpos) | |
4049 | glyph = row->glyphs[TEXT_AREA] + w->phys_cursor.hpos; | |
4050 | else | |
4051 | glyph = NULL; | |
4052 | ||
4053 | return glyph; | |
4054 | } | |
4055 | ||
4056 | ||
7ab12479 JB |
4057 | static int |
4058 | save_window_save (window, vector, i) | |
4059 | Lisp_Object window; | |
4060 | struct Lisp_Vector *vector; | |
4061 | int i; | |
4062 | { | |
4063 | register struct saved_window *p; | |
4064 | register struct window *w; | |
4065 | register Lisp_Object tem; | |
4066 | ||
265a9e55 | 4067 | for (;!NILP (window); window = w->next) |
7ab12479 JB |
4068 | { |
4069 | p = SAVED_WINDOW_N (vector, i); | |
4070 | w = XWINDOW (window); | |
4071 | ||
d834a2e9 | 4072 | XSETFASTINT (w->temslot, i++); |
7ab12479 JB |
4073 | p->window = window; |
4074 | p->buffer = w->buffer; | |
4075 | p->left = w->left; | |
4076 | p->top = w->top; | |
4077 | p->width = w->width; | |
4078 | p->height = w->height; | |
4079 | p->hscroll = w->hscroll; | |
4080 | p->display_table = w->display_table; | |
265a9e55 | 4081 | if (!NILP (w->buffer)) |
7ab12479 JB |
4082 | { |
4083 | /* Save w's value of point in the window configuration. | |
4084 | If w is the selected window, then get the value of point | |
4085 | from the buffer; pointm is garbage in the selected window. */ | |
4086 | if (EQ (window, selected_window)) | |
4087 | { | |
4088 | p->pointm = Fmake_marker (); | |
b73ea88e RS |
4089 | set_marker_both (p->pointm, w->buffer, |
4090 | BUF_PT (XBUFFER (w->buffer)), | |
4091 | BUF_PT_BYTE (XBUFFER (w->buffer))); | |
7ab12479 JB |
4092 | } |
4093 | else | |
eeb82665 | 4094 | p->pointm = Fcopy_marker (w->pointm, Qnil); |
7ab12479 | 4095 | |
eeb82665 | 4096 | p->start = Fcopy_marker (w->start, Qnil); |
7ab12479 JB |
4097 | p->start_at_line_beg = w->start_at_line_beg; |
4098 | ||
4099 | tem = XBUFFER (w->buffer)->mark; | |
eeb82665 | 4100 | p->mark = Fcopy_marker (tem, Qnil); |
7ab12479 JB |
4101 | } |
4102 | else | |
4103 | { | |
4104 | p->pointm = Qnil; | |
4105 | p->start = Qnil; | |
4106 | p->mark = Qnil; | |
4107 | p->start_at_line_beg = Qnil; | |
4108 | } | |
4109 | ||
265a9e55 | 4110 | if (NILP (w->parent)) |
7ab12479 JB |
4111 | p->parent = Qnil; |
4112 | else | |
4113 | p->parent = XWINDOW (w->parent)->temslot; | |
4114 | ||
265a9e55 | 4115 | if (NILP (w->prev)) |
7ab12479 JB |
4116 | p->prev = Qnil; |
4117 | else | |
4118 | p->prev = XWINDOW (w->prev)->temslot; | |
4119 | ||
265a9e55 | 4120 | if (!NILP (w->vchild)) |
7ab12479 | 4121 | i = save_window_save (w->vchild, vector, i); |
265a9e55 | 4122 | if (!NILP (w->hchild)) |
7ab12479 JB |
4123 | i = save_window_save (w->hchild, vector, i); |
4124 | } | |
4125 | ||
4126 | return i; | |
4127 | } | |
4128 | ||
a0d76c27 EN |
4129 | DEFUN ("current-window-configuration", Fcurrent_window_configuration, |
4130 | Scurrent_window_configuration, 0, 1, 0, | |
44fa5b1e JB |
4131 | "Return an object representing the current window configuration of FRAME.\n\ |
4132 | If FRAME is nil or omitted, use the selected frame.\n\ | |
7ab12479 JB |
4133 | This describes the number of windows, their sizes and current buffers,\n\ |
4134 | and for each displayed buffer, where display starts, and the positions of\n\ | |
4135 | point and mark. An exception is made for point in the current buffer:\n\ | |
bdc727bf JB |
4136 | its value is -not- saved.\n\ |
4137 | This also records the currently selected frame, and FRAME's focus\n\ | |
4138 | redirection (see `redirect-frame-focus').") | |
44fa5b1e JB |
4139 | (frame) |
4140 | Lisp_Object frame; | |
7ab12479 JB |
4141 | { |
4142 | register Lisp_Object tem; | |
4143 | register int n_windows; | |
4144 | register struct save_window_data *data; | |
da2792e0 | 4145 | register struct Lisp_Vector *vec; |
7ab12479 | 4146 | register int i; |
44fa5b1e | 4147 | FRAME_PTR f; |
43bad991 | 4148 | |
44fa5b1e JB |
4149 | if (NILP (frame)) |
4150 | f = selected_frame; | |
43bad991 JB |
4151 | else |
4152 | { | |
44fa5b1e JB |
4153 | CHECK_LIVE_FRAME (frame, 0); |
4154 | f = XFRAME (frame); | |
43bad991 | 4155 | } |
7ab12479 | 4156 | |
44fa5b1e | 4157 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
da2792e0 KH |
4158 | vec = allocate_vectorlike (VECSIZE (struct save_window_data)); |
4159 | for (i = 0; i < VECSIZE (struct save_window_data); i++) | |
4160 | vec->contents[i] = Qnil; | |
4161 | vec->size = VECSIZE (struct save_window_data); | |
4162 | data = (struct save_window_data *)vec; | |
4163 | ||
d834a2e9 KH |
4164 | XSETFASTINT (data->frame_width, FRAME_WIDTH (f)); |
4165 | XSETFASTINT (data->frame_height, FRAME_HEIGHT (f)); | |
4166 | XSETFASTINT (data->frame_menu_bar_lines, FRAME_MENU_BAR_LINES (f)); | |
5500c422 | 4167 | XSETFASTINT (data->frame_toolbar_lines, FRAME_TOOLBAR_LINES (f)); |
74112613 | 4168 | XSETFRAME (data->selected_frame, selected_frame); |
44fa5b1e | 4169 | data->current_window = FRAME_SELECTED_WINDOW (f); |
74112613 | 4170 | XSETBUFFER (data->current_buffer, current_buffer); |
7ab12479 | 4171 | data->minibuf_scroll_window = Vminibuf_scroll_window; |
44fa5b1e | 4172 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 4173 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
74112613 KH |
4174 | XSETINT (data->min_height, window_min_height); |
4175 | XSETINT (data->min_width, window_min_width); | |
7ab12479 JB |
4176 | tem = Fmake_vector (make_number (n_windows), Qnil); |
4177 | data->saved_windows = tem; | |
4178 | for (i = 0; i < n_windows; i++) | |
4179 | XVECTOR (tem)->contents[i] | |
4180 | = Fmake_vector (make_number (SAVED_WINDOW_VECTOR_SIZE), Qnil); | |
44fa5b1e | 4181 | save_window_save (FRAME_ROOT_WINDOW (f), |
7ab12479 | 4182 | XVECTOR (tem), 0); |
74112613 | 4183 | XSETWINDOW_CONFIGURATION (tem, data); |
7ab12479 JB |
4184 | return (tem); |
4185 | } | |
4186 | ||
4187 | DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion, | |
4188 | 0, UNEVALLED, 0, | |
4189 | "Execute body, preserving window sizes and contents.\n\ | |
eb16ec06 RS |
4190 | Restore which buffer appears in which window, where display starts,\n\ |
4191 | and the value of point and mark for each window.\n\ | |
4192 | Also restore which buffer is current.\n\ | |
4193 | But do not preserve point in the current buffer.\n\ | |
7ab12479 JB |
4194 | Does not restore the value of point in current buffer.") |
4195 | (args) | |
4196 | Lisp_Object args; | |
4197 | { | |
4198 | register Lisp_Object val; | |
4199 | register int count = specpdl_ptr - specpdl; | |
4200 | ||
4201 | record_unwind_protect (Fset_window_configuration, | |
43bad991 | 4202 | Fcurrent_window_configuration (Qnil)); |
7ab12479 JB |
4203 | val = Fprogn (args); |
4204 | return unbind_to (count, val); | |
4205 | } | |
5500c422 GM |
4206 | |
4207 | \f | |
4208 | /*********************************************************************** | |
4209 | Marginal Areas | |
4210 | ***********************************************************************/ | |
4211 | ||
4212 | DEFUN ("set-window-margins", Fset_window_margins, Sset_window_margins, | |
4213 | 2, 3, "", | |
4214 | "Set width of marginal areas of window WINDOW.\n\ | |
4215 | If window is nil or omitted, set margins of the currently selected window.\n\ | |
4216 | First parameter LEFT-WIDTH specifies the number of character\n\ | |
4217 | cells to reserve for the left marginal area. Second parameter\n\ | |
4218 | RIGHT-WIDTH does the same for the right marginal area.\n\ | |
4219 | A nil width parameter means no margin.") | |
4220 | (left, right, window) | |
4221 | Lisp_Object window, left, right; | |
4222 | { | |
4223 | struct window *w = decode_window (window); | |
4224 | struct frame *f = XFRAME (w->frame); | |
4225 | ||
4226 | if (!NILP (left)) | |
4227 | CHECK_NUMBER_OR_FLOAT (left, 0); | |
4228 | if (!NILP (right)) | |
4229 | CHECK_NUMBER_OR_FLOAT (right, 0); | |
4230 | ||
4231 | /* Check widths < 0 and translate a zero width to nil. | |
4232 | Margins that are too wide have to be checked elsewhere. */ | |
4233 | if ((INTEGERP (left) && XINT (left) < 0) | |
4234 | || (FLOATP (left) && XFLOAT (left)->data <= 0)) | |
4235 | XSETFASTINT (left, 0); | |
4236 | if (INTEGERP (left) && XFASTINT (left) == 0) | |
4237 | left = Qnil; | |
4238 | ||
4239 | if ((INTEGERP (right) && XINT (right) < 0) | |
4240 | || (FLOATP (right) && XFLOAT (right)->data <= 0)) | |
4241 | XSETFASTINT (right, 0); | |
4242 | if (INTEGERP (right) && XFASTINT (right) == 0) | |
4243 | right = Qnil; | |
4244 | ||
4245 | w->left_margin_width = left; | |
4246 | w->right_margin_width = right; | |
4247 | ||
4248 | ++windows_or_buffers_changed; | |
4249 | adjust_glyphs (XFRAME (WINDOW_FRAME (w))); | |
4250 | return Qnil; | |
4251 | } | |
4252 | ||
4253 | ||
4254 | DEFUN ("window-margins", Fwindow_margins, Swindow_margins, | |
4255 | 0, 1, 0, | |
4256 | "Get width of marginal areas of window WINDOW.\n\ | |
4257 | If WINDOW is omitted or nil, use the currently selected window.\n\ | |
4258 | Value is a cons of the form (LEFT-WIDTH . RIGHT-WIDTH).\n\ | |
4259 | If a marginal area does not exist, its width will be returned\n\ | |
4260 | as nil.") | |
4261 | (window) | |
4262 | Lisp_Object window; | |
4263 | { | |
4264 | struct window *w = decode_window (window); | |
4265 | return Fcons (w->left_margin_width, w->right_margin_width); | |
4266 | } | |
4267 | ||
4268 | ||
7ab12479 | 4269 | \f |
5500c422 GM |
4270 | /*********************************************************************** |
4271 | Smooth scrolling | |
4272 | ***********************************************************************/ | |
4273 | ||
4274 | DEFUN ("window-vscroll", Fwindow_vscroll, Swindow_vscroll, 0, 1, 0, | |
4275 | "Return the amount by which WINDOW is scrolled vertically.\n\ | |
4276 | Use the selected window if WINDOW is nil or omitted.\n\ | |
4277 | Value is a multiple of the canonical character height of WINDOW.") | |
4278 | (window) | |
4279 | Lisp_Object window; | |
4280 | { | |
4281 | struct frame *f; | |
4282 | struct window *w; | |
4283 | ||
4284 | if (NILP (window)) | |
4285 | window = selected_window; | |
4286 | w = XWINDOW (window); | |
4287 | f = XFRAME (w->frame); | |
4288 | ||
4289 | if (FRAME_WINDOW_P (f)) | |
4290 | return CANON_Y_FROM_PIXEL_Y (f, w->vscroll); | |
4291 | else | |
4292 | return make_number (0); | |
4293 | } | |
4294 | ||
4295 | ||
4296 | DEFUN ("set-window-vscroll", Fset_window_vscroll, Sset_window_vscroll, | |
4297 | 1, 2, 0, | |
4298 | "Set amount by WINDOW should be scrolled vertically to VSCROLL.\n\ | |
4299 | WINDOW nil or omitted means use the selected window. VSCROLL is a\n\ | |
4300 | multiple of the canonical character height of WINDOW.") | |
4301 | (vscroll, window) | |
4302 | Lisp_Object vscroll, window; | |
4303 | { | |
4304 | struct window *w; | |
4305 | struct frame *f; | |
4306 | ||
4307 | CHECK_NUMBER_OR_FLOAT (vscroll, 0); | |
4308 | ||
4309 | if (NILP (window)) | |
4310 | window = selected_window; | |
4311 | w = XWINDOW (window); | |
4312 | f = XFRAME (w->frame); | |
4313 | ||
4314 | if (FRAME_WINDOW_P (f)) | |
4315 | { | |
4316 | int old_dy = w->vscroll; | |
4317 | w->vscroll = min (0, CANON_Y_UNIT (f) * XFLOATINT (vscroll)); | |
4318 | ||
4319 | /* Adjust glyph matrix of the frame if the virtual display | |
4320 | area becomes larger than before. */ | |
4321 | if (w->vscroll < 0 && w->vscroll < old_dy) | |
4322 | adjust_glyphs (f); | |
4323 | ||
4324 | /* Prevent redisplay shortcuts. */ | |
4325 | XBUFFER (w->buffer)->clip_changed = 1; | |
4326 | } | |
4327 | ||
4328 | return Qnil; | |
4329 | } | |
4330 | ||
4331 | ||
4332 | \f | |
4333 | /*********************************************************************** | |
4334 | Initialization | |
4335 | ***********************************************************************/ | |
4336 | ||
cbff28e8 RS |
4337 | /* Return 1 if window configurations C1 and C2 |
4338 | describe the same state of affairs. This is used by Fequal. */ | |
4339 | ||
4340 | int | |
2f8274be | 4341 | compare_window_configurations (c1, c2, ignore_positions) |
cbff28e8 | 4342 | Lisp_Object c1, c2; |
2f8274be | 4343 | int ignore_positions; |
cbff28e8 RS |
4344 | { |
4345 | register struct save_window_data *d1, *d2; | |
4346 | struct Lisp_Vector *sw1, *sw2; | |
4347 | int i; | |
4348 | ||
4349 | d1 = (struct save_window_data *) XVECTOR (c1); | |
4350 | d2 = (struct save_window_data *) XVECTOR (c2); | |
4351 | sw1 = XVECTOR (d1->saved_windows); | |
4352 | sw2 = XVECTOR (d2->saved_windows); | |
4353 | ||
4354 | if (! EQ (d1->frame_width, d2->frame_width)) | |
4355 | return 0; | |
4356 | if (! EQ (d1->frame_height, d2->frame_height)) | |
4357 | return 0; | |
4358 | if (! EQ (d1->frame_menu_bar_lines, d2->frame_menu_bar_lines)) | |
4359 | return 0; | |
4360 | if (! EQ (d1->selected_frame, d2->selected_frame)) | |
4361 | return 0; | |
4362 | /* Don't compare the current_window field directly. | |
4363 | Instead see w1_is_current and w2_is_current, below. */ | |
4364 | if (! EQ (d1->current_buffer, d2->current_buffer)) | |
4365 | return 0; | |
2f8274be RS |
4366 | if (! ignore_positions) |
4367 | if (! EQ (d1->minibuf_scroll_window, d2->minibuf_scroll_window)) | |
4368 | return 0; | |
cbff28e8 RS |
4369 | /* Don't compare the root_window field. |
4370 | We don't require the two configurations | |
4371 | to use the same window object, | |
4372 | and the two root windows must be equivalent | |
4373 | if everything else compares equal. */ | |
4374 | if (! EQ (d1->focus_frame, d2->focus_frame)) | |
4375 | return 0; | |
4376 | if (! EQ (d1->min_width, d2->min_width)) | |
4377 | return 0; | |
4378 | if (! EQ (d1->min_height, d2->min_height)) | |
4379 | return 0; | |
4380 | ||
4381 | /* Verify that the two confis have the same number of windows. */ | |
4382 | if (sw1->size != sw2->size) | |
4383 | return 0; | |
4384 | ||
4385 | for (i = 0; i < sw1->size; i++) | |
4386 | { | |
4387 | struct saved_window *p1, *p2; | |
4388 | int w1_is_current, w2_is_current; | |
4389 | ||
4390 | p1 = SAVED_WINDOW_N (sw1, i); | |
4391 | p2 = SAVED_WINDOW_N (sw2, i); | |
4392 | ||
4393 | /* Verify that the current windows in the two | |
4394 | configurations correspond to each other. */ | |
4395 | w1_is_current = EQ (d1->current_window, p1->window); | |
4396 | w2_is_current = EQ (d2->current_window, p2->window); | |
4397 | ||
4398 | if (w1_is_current != w2_is_current) | |
4399 | return 0; | |
4400 | ||
4401 | /* Verify that the corresponding windows do match. */ | |
4402 | if (! EQ (p1->buffer, p2->buffer)) | |
4403 | return 0; | |
4404 | if (! EQ (p1->left, p2->left)) | |
4405 | return 0; | |
4406 | if (! EQ (p1->top, p2->top)) | |
4407 | return 0; | |
4408 | if (! EQ (p1->width, p2->width)) | |
4409 | return 0; | |
4410 | if (! EQ (p1->height, p2->height)) | |
4411 | return 0; | |
cbff28e8 RS |
4412 | if (! EQ (p1->display_table, p2->display_table)) |
4413 | return 0; | |
4414 | if (! EQ (p1->parent, p2->parent)) | |
4415 | return 0; | |
4416 | if (! EQ (p1->prev, p2->prev)) | |
4417 | return 0; | |
2f8274be RS |
4418 | if (! ignore_positions) |
4419 | { | |
4420 | if (! EQ (p1->hscroll, p2->hscroll)) | |
4421 | return 0; | |
4422 | if (! EQ (p1->start_at_line_beg, p2->start_at_line_beg)) | |
4423 | return 0; | |
4424 | if (NILP (Fequal (p1->start, p2->start))) | |
4425 | return 0; | |
4426 | if (NILP (Fequal (p1->pointm, p2->pointm))) | |
4427 | return 0; | |
4428 | if (NILP (Fequal (p1->mark, p2->mark))) | |
4429 | return 0; | |
4430 | } | |
cbff28e8 RS |
4431 | } |
4432 | ||
4433 | return 1; | |
4434 | } | |
2f8274be RS |
4435 | |
4436 | DEFUN ("compare-window-configurations", Fcompare_window_configurations, | |
4437 | Scompare_window_configurations, 2, 2, 0, | |
4438 | "Compare two window configurations as regards the structure of windows.\n\ | |
4439 | This function ignores details such as the values of point and mark\n\ | |
4440 | and scrolling positions.") | |
4441 | (x, y) | |
4442 | Lisp_Object x, y; | |
4443 | { | |
4444 | if (compare_window_configurations (x, y, 1)) | |
4445 | return Qt; | |
4446 | return Qnil; | |
4447 | } | |
cbff28e8 | 4448 | \f |
dfcf069d | 4449 | void |
7ab12479 JB |
4450 | init_window_once () |
4451 | { | |
44fa5b1e | 4452 | selected_frame = make_terminal_frame (); |
bc6c324f | 4453 | XSETFRAME (Vterminal_frame, selected_frame); |
44fa5b1e JB |
4454 | minibuf_window = selected_frame->minibuffer_window; |
4455 | selected_window = selected_frame->selected_window; | |
4456 | last_nonminibuf_frame = selected_frame; | |
5b03d3c0 RS |
4457 | |
4458 | window_initialized = 1; | |
7ab12479 JB |
4459 | } |
4460 | ||
dfcf069d | 4461 | void |
7ab12479 JB |
4462 | syms_of_window () |
4463 | { | |
543f5fb1 RS |
4464 | staticpro (&Qwindow_configuration_change_hook); |
4465 | Qwindow_configuration_change_hook | |
4466 | = intern ("window-configuration-change-hook"); | |
4467 | ||
7ab12479 JB |
4468 | Qwindowp = intern ("windowp"); |
4469 | staticpro (&Qwindowp); | |
4470 | ||
3f8ab7bd RS |
4471 | Qwindow_configuration_p = intern ("window-configuration-p"); |
4472 | staticpro (&Qwindow_configuration_p); | |
4473 | ||
806b4d9b JB |
4474 | Qwindow_live_p = intern ("window-live-p"); |
4475 | staticpro (&Qwindow_live_p); | |
605be8af | 4476 | |
2cccc823 | 4477 | Qtemp_buffer_show_hook = intern ("temp-buffer-show-hook"); |
a58ec57d RS |
4478 | staticpro (&Qtemp_buffer_show_hook); |
4479 | ||
7ab12479 JB |
4480 | DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function, |
4481 | "Non-nil means call as function to display a help buffer.\n\ | |
c3ef6b1d | 4482 | The function is called with one argument, the buffer to be displayed.\n\ |
f52cca03 RS |
4483 | Used by `with-output-to-temp-buffer'.\n\ |
4484 | If this function is used, then it must do the entire job of showing\n\ | |
4485 | the buffer; `temp-buffer-show-hook' is not run unless this function runs it."); | |
7ab12479 JB |
4486 | Vtemp_buffer_show_function = Qnil; |
4487 | ||
4488 | DEFVAR_LISP ("display-buffer-function", &Vdisplay_buffer_function, | |
4489 | "If non-nil, function to call to handle `display-buffer'.\n\ | |
4490 | It will receive two args, the buffer and a flag which if non-nil means\n\ | |
4491 | that the currently selected window is not acceptable.\n\ | |
4492 | Commands such as `switch-to-buffer-other-window' and `find-file-other-window'\n\ | |
4493 | work using this function."); | |
4494 | Vdisplay_buffer_function = Qnil; | |
4495 | ||
7ab12479 JB |
4496 | DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window, |
4497 | "Non-nil means it is the window that C-M-v in minibuffer should scroll."); | |
4498 | Vminibuf_scroll_window = Qnil; | |
4499 | ||
4500 | DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer, | |
4501 | "If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window."); | |
4502 | Vother_window_scroll_buffer = Qnil; | |
4503 | ||
44fa5b1e | 4504 | DEFVAR_BOOL ("pop-up-frames", &pop_up_frames, |
700f75a4 | 4505 | "*Non-nil means `display-buffer' should make a separate frame."); |
44fa5b1e | 4506 | pop_up_frames = 0; |
7ab12479 | 4507 | |
44fa5b1e | 4508 | DEFVAR_LISP ("pop-up-frame-function", &Vpop_up_frame_function, |
a90712c2 | 4509 | "Function to call to handle automatic new frame creation.\n\ |
44fa5b1e | 4510 | It is called with no arguments and should return a newly created frame.\n\ |
7ab12479 | 4511 | \n\ |
44fa5b1e JB |
4512 | A typical value might be `(lambda () (new-frame pop-up-frame-alist))'\n\ |
4513 | where `pop-up-frame-alist' would hold the default frame parameters."); | |
4514 | Vpop_up_frame_function = Qnil; | |
7ab12479 | 4515 | |
a90712c2 RS |
4516 | DEFVAR_LISP ("special-display-buffer-names", &Vspecial_display_buffer_names, |
4517 | "*List of buffer names that should have their own special frames.\n\ | |
4518 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
524580a4 | 4519 | using `special-display-function'. See also `special-display-regexps'.\n\ |
3548e138 | 4520 | \n\ |
524580a4 RS |
4521 | An element of the list can be a list instead of just a string.\n\ |
4522 | There are two ways to use a list as an element:\n\ | |
4523 | (BUFFER FRAME-PARAMETERS...) (BUFFER FUNCTION OTHER-ARGS...)\n\ | |
4524 | In the first case, FRAME-PARAMETERS are used to create the frame.\n\ | |
4525 | In the latter case, FUNCTION is called with BUFFER as the first argument,\n\ | |
4526 | followed by OTHER-ARGS--it can display BUFFER in any way it likes.\n\ | |
4caa7448 RS |
4527 | All this is done by the function found in `special-display-function'.\n\ |
4528 | \n\ | |
4529 | If this variable appears \"not to work\", because you add a name to it\n\ | |
4530 | but that buffer still appears in the selected window, look at the\n\ | |
4531 | values of `same-window-buffer-names' and `same-window-regexps'.\n\ | |
4532 | Those variables take precedence over this one."); | |
a90712c2 RS |
4533 | Vspecial_display_buffer_names = Qnil; |
4534 | ||
4535 | DEFVAR_LISP ("special-display-regexps", &Vspecial_display_regexps, | |
4536 | "*List of regexps saying which buffers should have their own special frames.\n\ | |
4537 | If a buffer name matches one of these regexps, it gets its own frame.\n\ | |
4538 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
0a952b57 | 4539 | using `special-display-function'.\n\ |
3548e138 | 4540 | \n\ |
524580a4 RS |
4541 | An element of the list can be a list instead of just a string.\n\ |
4542 | There are two ways to use a list as an element:\n\ | |
4543 | (REGEXP FRAME-PARAMETERS...) (REGEXP FUNCTION OTHER-ARGS...)\n\ | |
4544 | In the first case, FRAME-PARAMETERS are used to create the frame.\n\ | |
4545 | In the latter case, FUNCTION is called with the buffer as first argument,\n\ | |
4546 | followed by OTHER-ARGS--it can display the buffer in any way it likes.\n\ | |
4caa7448 RS |
4547 | All this is done by the function found in `special-display-function'.\n\ |
4548 | \n\ | |
4549 | If this variable appears \"not to work\", because you add a regexp to it\n\ | |
4550 | but the matching buffers still appear in the selected window, look at the\n\ | |
4551 | values of `same-window-buffer-names' and `same-window-regexps'.\n\ | |
4552 | Those variables take precedence over this one."); | |
a90712c2 RS |
4553 | Vspecial_display_regexps = Qnil; |
4554 | ||
4555 | DEFVAR_LISP ("special-display-function", &Vspecial_display_function, | |
4556 | "Function to call to make a new frame for a special buffer.\n\ | |
0a952b57 RS |
4557 | It is called with two arguments, the buffer and optional buffer specific\n\ |
4558 | data, and should return a window displaying that buffer.\n\ | |
a90712c2 | 4559 | The default value makes a separate frame for the buffer,\n\ |
bdd3a802 | 4560 | using `special-display-frame-alist' to specify the frame parameters.\n\ |
a90712c2 RS |
4561 | \n\ |
4562 | A buffer is special if its is listed in `special-display-buffer-names'\n\ | |
4563 | or matches a regexp in `special-display-regexps'."); | |
4564 | Vspecial_display_function = Qnil; | |
4565 | ||
855d8627 RS |
4566 | DEFVAR_LISP ("same-window-buffer-names", &Vsame_window_buffer_names, |
4567 | "*List of buffer names that should appear in the selected window.\n\ | |
4568 | Displaying one of these buffers using `display-buffer' or `pop-to-buffer'\n\ | |
4569 | switches to it in the selected window, rather than making it appear\n\ | |
2e5ce1a0 | 4570 | in some other window.\n\ |
855d8627 RS |
4571 | \n\ |
4572 | An element of the list can be a cons cell instead of just a string.\n\ | |
4573 | Then the car must be a string, which specifies the buffer name.\n\ | |
4574 | This is for compatibility with `special-display-buffer-names';\n\ | |
4575 | the cdr of the cons cell is ignored.\n\ | |
4576 | \n\ | |
4577 | See also `same-window-regexps'."); | |
4578 | Vsame_window_buffer_names = Qnil; | |
4579 | ||
4580 | DEFVAR_LISP ("same-window-regexps", &Vsame_window_regexps, | |
4581 | "*List of regexps saying which buffers should appear in the selected window.\n\ | |
4582 | If a buffer name matches one of these regexps, then displaying it\n\ | |
4583 | using `display-buffer' or `pop-to-buffer' switches to it\n\ | |
4584 | in the selected window, rather than making it appear in some other window.\n\ | |
4585 | \n\ | |
4586 | An element of the list can be a cons cell instead of just a string.\n\ | |
4587 | Then the car must be a string, which specifies the buffer name.\n\ | |
4588 | This is for compatibility with `special-display-buffer-names';\n\ | |
4589 | the cdr of the cons cell is ignored.\n\ | |
4590 | \n\ | |
4591 | See also `same-window-buffer-names'."); | |
4592 | Vsame_window_regexps = Qnil; | |
4593 | ||
7ab12479 JB |
4594 | DEFVAR_BOOL ("pop-up-windows", &pop_up_windows, |
4595 | "*Non-nil means display-buffer should make new windows."); | |
4596 | pop_up_windows = 1; | |
4597 | ||
4598 | DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines, | |
4599 | "*Number of lines of continuity when scrolling by screenfuls."); | |
4600 | next_screen_context_lines = 2; | |
4601 | ||
4602 | DEFVAR_INT ("split-height-threshold", &split_height_threshold, | |
4603 | "*display-buffer would prefer to split the largest window if this large.\n\ | |
4604 | If there is only one window, it is split regardless of this value."); | |
4605 | split_height_threshold = 500; | |
4606 | ||
4607 | DEFVAR_INT ("window-min-height", &window_min_height, | |
4608 | "*Delete any window less than this tall (including its mode line)."); | |
4609 | window_min_height = 4; | |
4610 | ||
4611 | DEFVAR_INT ("window-min-width", &window_min_width, | |
4612 | "*Delete any window less than this wide."); | |
4613 | window_min_width = 10; | |
4614 | ||
5500c422 GM |
4615 | DEFVAR_LISP ("scroll-preserve-screen-position", |
4616 | &Vscroll_preserve_screen_position, | |
9317a85d | 4617 | "*Nonzero means scroll commands move point to keep its screen line unchanged."); |
5500c422 | 4618 | Vscroll_preserve_screen_position = Qnil; |
9317a85d | 4619 | |
543f5fb1 RS |
4620 | DEFVAR_LISP ("window-configuration-change-hook", |
4621 | &Vwindow_configuration_change_hook, | |
4622 | "Functions to call when window configuration changes.\n\ | |
e3e041eb | 4623 | The selected frame is the one whose configuration has changed."); |
543f5fb1 RS |
4624 | Vwindow_configuration_change_hook = Qnil; |
4625 | ||
7ab12479 JB |
4626 | defsubr (&Sselected_window); |
4627 | defsubr (&Sminibuffer_window); | |
4628 | defsubr (&Swindow_minibuffer_p); | |
4629 | defsubr (&Swindowp); | |
806b4d9b | 4630 | defsubr (&Swindow_live_p); |
7ab12479 JB |
4631 | defsubr (&Spos_visible_in_window_p); |
4632 | defsubr (&Swindow_buffer); | |
4633 | defsubr (&Swindow_height); | |
4634 | defsubr (&Swindow_width); | |
4635 | defsubr (&Swindow_hscroll); | |
4636 | defsubr (&Sset_window_hscroll); | |
190eb263 RS |
4637 | defsubr (&Swindow_redisplay_end_trigger); |
4638 | defsubr (&Sset_window_redisplay_end_trigger); | |
7ab12479 | 4639 | defsubr (&Swindow_edges); |
d5783c40 JB |
4640 | defsubr (&Scoordinates_in_window_p); |
4641 | defsubr (&Swindow_at); | |
7ab12479 JB |
4642 | defsubr (&Swindow_point); |
4643 | defsubr (&Swindow_start); | |
4644 | defsubr (&Swindow_end); | |
4645 | defsubr (&Sset_window_point); | |
4646 | defsubr (&Sset_window_start); | |
4647 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 4648 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
4649 | defsubr (&Swindow_display_table); |
4650 | defsubr (&Sset_window_display_table); | |
4651 | defsubr (&Snext_window); | |
4652 | defsubr (&Sprevious_window); | |
4653 | defsubr (&Sother_window); | |
4654 | defsubr (&Sget_lru_window); | |
4655 | defsubr (&Sget_largest_window); | |
4656 | defsubr (&Sget_buffer_window); | |
4657 | defsubr (&Sdelete_other_windows); | |
4658 | defsubr (&Sdelete_windows_on); | |
4659 | defsubr (&Sreplace_buffer_in_windows); | |
4660 | defsubr (&Sdelete_window); | |
4661 | defsubr (&Sset_window_buffer); | |
4662 | defsubr (&Sselect_window); | |
4628f7a4 EN |
4663 | defsubr (&Sspecial_display_p); |
4664 | defsubr (&Ssame_window_p); | |
7ab12479 JB |
4665 | defsubr (&Sdisplay_buffer); |
4666 | defsubr (&Ssplit_window); | |
4667 | defsubr (&Senlarge_window); | |
4668 | defsubr (&Sshrink_window); | |
4669 | defsubr (&Sscroll_up); | |
4670 | defsubr (&Sscroll_down); | |
4671 | defsubr (&Sscroll_left); | |
4672 | defsubr (&Sscroll_right); | |
ccd0664b | 4673 | defsubr (&Sother_window_for_scrolling); |
7ab12479 JB |
4674 | defsubr (&Sscroll_other_window); |
4675 | defsubr (&Srecenter); | |
4676 | defsubr (&Smove_to_window_line); | |
4677 | defsubr (&Swindow_configuration_p); | |
3f8ab7bd | 4678 | defsubr (&Swindow_configuration_frame); |
7ab12479 JB |
4679 | defsubr (&Sset_window_configuration); |
4680 | defsubr (&Scurrent_window_configuration); | |
4681 | defsubr (&Ssave_window_excursion); | |
5500c422 GM |
4682 | defsubr (&Sset_window_margins); |
4683 | defsubr (&Swindow_margins); | |
4684 | defsubr (&Swindow_vscroll); | |
4685 | defsubr (&Sset_window_vscroll); | |
2f8274be | 4686 | defsubr (&Scompare_window_configurations); |
7ab12479 JB |
4687 | } |
4688 | ||
dfcf069d | 4689 | void |
7ab12479 JB |
4690 | keys_of_window () |
4691 | { | |
4692 | initial_define_key (control_x_map, '1', "delete-other-windows"); | |
4693 | initial_define_key (control_x_map, '2', "split-window"); | |
4694 | initial_define_key (control_x_map, '0', "delete-window"); | |
4695 | initial_define_key (control_x_map, 'o', "other-window"); | |
4696 | initial_define_key (control_x_map, '^', "enlarge-window"); | |
4697 | initial_define_key (control_x_map, '<', "scroll-left"); | |
4698 | initial_define_key (control_x_map, '>', "scroll-right"); | |
4699 | ||
4700 | initial_define_key (global_map, Ctl ('V'), "scroll-up"); | |
4701 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); | |
4702 | initial_define_key (meta_map, 'v', "scroll-down"); | |
4703 | ||
4704 | initial_define_key (global_map, Ctl('L'), "recenter"); | |
4705 | initial_define_key (meta_map, 'r', "move-to-window-line"); | |
4706 | } |