Commit | Line | Data |
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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
37962e60 | 3 | Copyright (C) 1985, 86, 87, 93, 94, 95, 96 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" |
7ab12479 | 32 | |
806b4d9b | 33 | Lisp_Object Qwindowp, Qwindow_live_p; |
7ab12479 JB |
34 | |
35 | Lisp_Object Fnext_window (), Fdelete_window (), Fselect_window (); | |
36 | Lisp_Object Fset_window_buffer (), Fsplit_window (), Frecenter (); | |
37 | ||
fd482be5 | 38 | void delete_all_subwindows (); |
7ab12479 JB |
39 | static struct window *decode_window(); |
40 | ||
41 | /* This is the window in which the terminal's cursor should | |
42 | be left when nothing is being done with it. This must | |
43 | always be a leaf window, and its buffer is selected by | |
44 | the top level editing loop at the end of each command. | |
45 | ||
46 | This value is always the same as | |
44fa5b1e | 47 | FRAME_SELECTED_WINDOW (selected_frame). */ |
7ab12479 JB |
48 | |
49 | Lisp_Object selected_window; | |
50 | ||
44fa5b1e | 51 | /* The minibuffer window of the selected frame. |
7ab12479 JB |
52 | Note that you cannot test for minibufferness of an arbitrary window |
53 | by comparing against this; but you can test for minibufferness of | |
54 | the selected window. */ | |
55 | Lisp_Object minibuf_window; | |
56 | ||
57 | /* Non-nil means it is the window for C-M-v to scroll | |
58 | when the minibuffer is selected. */ | |
59 | Lisp_Object Vminibuf_scroll_window; | |
60 | ||
61 | /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
62 | Lisp_Object Vother_window_scroll_buffer; | |
63 | ||
7ab12479 JB |
64 | /* Non-nil means it's function to call to display temp buffers. */ |
65 | Lisp_Object Vtemp_buffer_show_function; | |
66 | ||
67 | /* If a window gets smaller than either of these, it is removed. */ | |
68 | int window_min_height; | |
69 | int window_min_width; | |
70 | ||
71 | /* Nonzero implies Fdisplay_buffer should create windows. */ | |
72 | int pop_up_windows; | |
73 | ||
44fa5b1e JB |
74 | /* Nonzero implies make new frames for Fdisplay_buffer. */ |
75 | int pop_up_frames; | |
7ab12479 JB |
76 | |
77 | /* Non-nil means use this function instead of default */ | |
44fa5b1e | 78 | Lisp_Object Vpop_up_frame_function; |
7ab12479 JB |
79 | |
80 | /* Function to call to handle Fdisplay_buffer. */ | |
81 | Lisp_Object Vdisplay_buffer_function; | |
82 | ||
a90712c2 RS |
83 | /* List of buffer *names* for buffers that should have their own frames. */ |
84 | Lisp_Object Vspecial_display_buffer_names; | |
85 | ||
86 | /* List of regexps for buffer names that should have their own frames. */ | |
87 | Lisp_Object Vspecial_display_regexps; | |
88 | ||
89 | /* Function to pop up a special frame. */ | |
90 | Lisp_Object Vspecial_display_function; | |
91 | ||
855d8627 RS |
92 | /* List of buffer *names* for buffers to appear in selected window. */ |
93 | Lisp_Object Vsame_window_buffer_names; | |
94 | ||
95 | /* List of regexps for buffer names to appear in selected window. */ | |
96 | Lisp_Object Vsame_window_regexps; | |
97 | ||
a58ec57d RS |
98 | /* Hook run at end of temp_output_buffer_show. */ |
99 | Lisp_Object Qtemp_buffer_show_hook; | |
100 | ||
37962e60 | 101 | /* Fdisplay_buffer always splits the largest window |
7ab12479 JB |
102 | if that window is more than this high. */ |
103 | int split_height_threshold; | |
104 | ||
105 | /* Number of lines of continuity in scrolling by screenfuls. */ | |
106 | int next_screen_context_lines; | |
107 | ||
108 | /* Incremented for each window created. */ | |
109 | static int sequence_number; | |
110 | ||
5b03d3c0 RS |
111 | /* Nonzero after init_window_once has finished. */ |
112 | static int window_initialized; | |
113 | ||
9317a85d RS |
114 | /* Nonzero means scroll commands try to put point |
115 | at the same screen height as previously. */ | |
116 | static int scroll_preserve_screen_position; | |
117 | ||
7ab12479 | 118 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
dba06815 | 119 | |
9317a85d RS |
120 | extern int scroll_margin; |
121 | ||
dba06815 | 122 | extern Lisp_Object Qwindow_scroll_functions, Vwindow_scroll_functions; |
7ab12479 JB |
123 | \f |
124 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, | |
413430c5 EN |
125 | "Returns t if OBJECT is a window.") |
126 | (object) | |
127 | Lisp_Object object; | |
7ab12479 | 128 | { |
413430c5 | 129 | return WINDOWP (object) ? Qt : Qnil; |
7ab12479 JB |
130 | } |
131 | ||
806b4d9b | 132 | DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0, |
413430c5 EN |
133 | "Returns t if OBJECT is a window which is currently visible.") |
134 | (object) | |
135 | Lisp_Object object; | |
605be8af | 136 | { |
413430c5 | 137 | return (WINDOWP (object) && ! NILP (XWINDOW (object)->buffer) ? Qt : Qnil); |
605be8af JB |
138 | } |
139 | ||
7ab12479 JB |
140 | Lisp_Object |
141 | make_window () | |
142 | { | |
cffec418 | 143 | Lisp_Object val; |
7ab12479 | 144 | register struct window *p; |
cffec418 KH |
145 | register struct Lisp_Vector *vec; |
146 | int i; | |
147 | ||
148 | vec = allocate_vectorlike ((EMACS_INT) VECSIZE (struct window)); | |
149 | for (i = 0; i < VECSIZE (struct window); i++) | |
150 | vec->contents[i] = Qnil; | |
151 | vec->size = VECSIZE (struct window); | |
152 | p = (struct window *)vec; | |
d834a2e9 KH |
153 | XSETFASTINT (p->sequence_number, ++sequence_number); |
154 | XSETFASTINT (p->left, 0); | |
155 | XSETFASTINT (p->top, 0); | |
156 | XSETFASTINT (p->height, 0); | |
157 | XSETFASTINT (p->width, 0); | |
158 | XSETFASTINT (p->hscroll, 0); | |
159 | XSETFASTINT (p->last_point_x, 0); | |
160 | XSETFASTINT (p->last_point_y, 0); | |
7ab12479 JB |
161 | p->start = Fmake_marker (); |
162 | p->pointm = Fmake_marker (); | |
d834a2e9 | 163 | XSETFASTINT (p->use_time, 0); |
44fa5b1e | 164 | p->frame = Qnil; |
7ab12479 JB |
165 | p->display_table = Qnil; |
166 | p->dedicated = Qnil; | |
cffec418 | 167 | XSETWINDOW (val, p); |
7ab12479 JB |
168 | return val; |
169 | } | |
170 | ||
171 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
172 | "Return the window that the cursor now appears in and commands apply to.") | |
173 | () | |
174 | { | |
175 | return selected_window; | |
176 | } | |
177 | ||
83762ba4 JB |
178 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, |
179 | "Return the window used now for minibuffers.\n\ | |
180 | If the optional argument FRAME is specified, return the minibuffer window\n\ | |
181 | used by that frame.") | |
182 | (frame) | |
183 | Lisp_Object frame; | |
7ab12479 | 184 | { |
83762ba4 | 185 | if (NILP (frame)) |
74112613 | 186 | XSETFRAME (frame, selected_frame); |
83762ba4 JB |
187 | else |
188 | CHECK_LIVE_FRAME (frame, 0); | |
83762ba4 JB |
189 | |
190 | return FRAME_MINIBUF_WINDOW (XFRAME (frame)); | |
7ab12479 JB |
191 | } |
192 | ||
605be8af | 193 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 0, 1, 0, |
7ab12479 JB |
194 | "Returns non-nil if WINDOW is a minibuffer window.") |
195 | (window) | |
196 | Lisp_Object window; | |
197 | { | |
198 | struct window *w = decode_window (window); | |
199 | return (MINI_WINDOW_P (w) ? Qt : Qnil); | |
200 | } | |
201 | ||
202 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, | |
203 | Spos_visible_in_window_p, 0, 2, 0, | |
44fa5b1e | 204 | "Return t if position POS is currently on the frame in WINDOW.\n\ |
7ab12479 JB |
205 | Returns nil if that position is scrolled vertically out of view.\n\ |
206 | POS defaults to point; WINDOW, to the selected window.") | |
207 | (pos, window) | |
208 | Lisp_Object pos, window; | |
209 | { | |
210 | register struct window *w; | |
211 | register int top; | |
212 | register int height; | |
213 | register int posint; | |
214 | register struct buffer *buf; | |
215 | struct position posval; | |
afdb2485 | 216 | int hscroll; |
7ab12479 | 217 | |
265a9e55 | 218 | if (NILP (pos)) |
5ce7b543 | 219 | posint = PT; |
7ab12479 JB |
220 | else |
221 | { | |
222 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
223 | posint = XINT (pos); | |
224 | } | |
225 | ||
605be8af | 226 | w = decode_window (window); |
7ab12479 | 227 | top = marker_position (w->start); |
afdb2485 | 228 | hscroll = XINT (w->hscroll); |
7ab12479 JB |
229 | |
230 | if (posint < top) | |
231 | return Qnil; | |
232 | ||
233 | height = XFASTINT (w->height) - ! MINI_WINDOW_P (w); | |
234 | ||
235 | buf = XBUFFER (w->buffer); | |
3cd21523 RS |
236 | if (XFASTINT (w->last_modified) >= BUF_MODIFF (buf) |
237 | && XFASTINT (w->last_overlay_modified) >= BUF_OVERLAY_MODIFF (buf)) | |
7ab12479 | 238 | { |
44fa5b1e | 239 | /* If frame is up to date, |
7ab12479 JB |
240 | use the info recorded about how much text fit on it. */ |
241 | if (posint < BUF_Z (buf) - XFASTINT (w->window_end_pos) | |
242 | || (XFASTINT (w->window_end_vpos) < height)) | |
243 | return Qt; | |
244 | return Qnil; | |
245 | } | |
246 | else | |
247 | { | |
33eb4ede | 248 | if (posint > BUF_ZV (buf)) |
7ab12479 JB |
249 | return Qnil; |
250 | ||
61b5322b RS |
251 | /* w->start can be out of range. If it is, do something reasonable. */ |
252 | if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
253 | return Qnil; | |
254 | ||
7ab12479 | 255 | /* If that info is not correct, calculate afresh */ |
5a255667 KH |
256 | /* BUG FIX for the 7th arg (TOHPOS). |
257 | ||
258 | '0' is harmless, however, ' - (1 << (BITS_PER_SHORT - 1))' is | |
259 | more appropriate here. In case of HSCROLL > 0, this can avoid | |
260 | needless calculation done until (HPOS == 0). | |
261 | ||
262 | We want to determine if the position POSINT is in HEIGHT or | |
263 | not. We don't have to do calculation until (HPOS == 0). We | |
264 | can stop it when VPOS goes beyond HEIGHT. */ | |
4efffd80 | 265 | posval = *compute_motion (top, 0, (hscroll ? 1 - hscroll : 0), 0, |
5a255667 | 266 | posint, height, - (1 << (BITS_PER_SHORT - 1)), |
535e0b8e | 267 | window_internal_width (w) - 1, |
e37f06d7 | 268 | hscroll, 0, w); |
7ab12479 JB |
269 | |
270 | return posval.vpos < height ? Qt : Qnil; | |
271 | } | |
272 | } | |
273 | \f | |
274 | static struct window * | |
275 | decode_window (window) | |
276 | register Lisp_Object window; | |
277 | { | |
265a9e55 | 278 | if (NILP (window)) |
7ab12479 JB |
279 | return XWINDOW (selected_window); |
280 | ||
605be8af | 281 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
282 | return XWINDOW (window); |
283 | } | |
284 | ||
285 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, | |
286 | "Return the buffer that WINDOW is displaying.") | |
287 | (window) | |
288 | Lisp_Object window; | |
289 | { | |
290 | return decode_window (window)->buffer; | |
291 | } | |
292 | ||
293 | DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0, | |
294 | "Return the number of lines in WINDOW (including its mode line).") | |
295 | (window) | |
296 | Lisp_Object window; | |
297 | { | |
298 | return decode_window (window)->height; | |
299 | } | |
300 | ||
301 | DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0, | |
3b5908ef RS |
302 | "Return the number of display columns in WINDOW.\n\ |
303 | This is the width that is usable columns available for text in WINDOW.\n\ | |
304 | If you want to find out how many columns WINDOW takes up,\n\ | |
305 | use (let ((edges (window-edges))) (- (nth 2 edges) (nth 0 edges))).") | |
7ab12479 JB |
306 | (window) |
307 | Lisp_Object window; | |
308 | { | |
ee61d94e | 309 | return make_number (window_internal_width (decode_window (window))); |
7ab12479 JB |
310 | } |
311 | ||
312 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, | |
313 | "Return the number of columns by which WINDOW is scrolled from left margin.") | |
314 | (window) | |
315 | Lisp_Object window; | |
316 | { | |
317 | return decode_window (window)->hscroll; | |
318 | } | |
319 | ||
320 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, | |
321 | "Set number of columns WINDOW is scrolled from left margin to NCOL.\n\ | |
322 | NCOL should be zero or positive.") | |
323 | (window, ncol) | |
324 | register Lisp_Object window, ncol; | |
325 | { | |
326 | register struct window *w; | |
327 | ||
328 | CHECK_NUMBER (ncol, 1); | |
d834a2e9 | 329 | if (XINT (ncol) < 0) XSETFASTINT (ncol, 0); |
7ab12479 | 330 | w = decode_window (window); |
7f4161e0 | 331 | if (XINT (w->hscroll) != XINT (ncol)) |
1479ef51 | 332 | XBUFFER (w->buffer)->clip_changed = 1; /* Prevent redisplay shortcuts */ |
7ab12479 JB |
333 | w->hscroll = ncol; |
334 | return ncol; | |
335 | } | |
336 | ||
190eb263 RS |
337 | DEFUN ("window-redisplay-end-trigger", Fwindow_redisplay_end_trigger, |
338 | Swindow_redisplay_end_trigger, 0, 1, 0, | |
339 | "Return WINDOW's redisplay end trigger value.\n\ | |
340 | See `set-window-redisplay-end-trigger' for more information.") | |
341 | (window) | |
342 | Lisp_Object window; | |
343 | { | |
344 | return decode_window (window)->redisplay_end_trigger; | |
345 | } | |
346 | ||
347 | DEFUN ("set-window-redisplay-end-trigger", Fset_window_redisplay_end_trigger, | |
348 | Sset_window_redisplay_end_trigger, 2, 2, 0, | |
349 | "Set WINDOW's redisplay end trigger value to VALUE.\n\ | |
350 | VALUE should be a buffer position (typically a marker) or nil.\n\ | |
76854cf2 RS |
351 | If it is a buffer position, then if redisplay in WINDOW reaches a position\n\ |
352 | beyond VALUE, the functions in `redisplay-end-trigger-functions' are called\n\ | |
353 | with two arguments: WINDOW, and the end trigger value.\n\ | |
354 | Afterwards the end-trigger value is reset to nil.") | |
190eb263 RS |
355 | (window, value) |
356 | register Lisp_Object window, value; | |
357 | { | |
358 | register struct window *w; | |
359 | ||
360 | w = decode_window (window); | |
361 | w->redisplay_end_trigger = value; | |
362 | return value; | |
363 | } | |
364 | ||
7ab12479 JB |
365 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, |
366 | "Return a list of the edge coordinates of WINDOW.\n\ | |
44fa5b1e | 367 | \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.\n\ |
7ab12479 JB |
368 | RIGHT is one more than the rightmost column used by WINDOW,\n\ |
369 | and BOTTOM is one more than the bottommost row used by WINDOW\n\ | |
370 | and its mode-line.") | |
371 | (window) | |
372 | Lisp_Object window; | |
373 | { | |
374 | register struct window *w = decode_window (window); | |
375 | ||
376 | return Fcons (w->left, Fcons (w->top, | |
111e5992 | 377 | Fcons (make_number (WINDOW_RIGHT_EDGE (w)), |
7ab12479 JB |
378 | Fcons (make_number (XFASTINT (w->top) |
379 | + XFASTINT (w->height)), | |
380 | Qnil)))); | |
381 | } | |
382 | ||
d5783c40 JB |
383 | /* Test if the character at column *x, row *y is within window *w. |
384 | If it is not, return 0; | |
385 | if it is in the window's text area, | |
386 | set *x and *y to its location relative to the upper left corner | |
387 | of the window, and | |
388 | return 1; | |
389 | if it is on the window's modeline, return 2; | |
390 | if it is on the border between the window and its right sibling, | |
391 | return 3. */ | |
392 | static int | |
393 | coordinates_in_window (w, x, y) | |
394 | register struct window *w; | |
395 | register int *x, *y; | |
396 | { | |
397 | register int left = XINT (w->left); | |
111e5992 RS |
398 | register int right_edge = WINDOW_RIGHT_EDGE (w); |
399 | register int left_margin = WINDOW_LEFT_MARGIN (w); | |
400 | register int right_margin = WINDOW_RIGHT_MARGIN (w); | |
d5783c40 JB |
401 | register int window_height = XINT (w->height); |
402 | register int top = XFASTINT (w->top); | |
111e5992 RS |
403 | |
404 | if ( *x < left || *x >= right_edge | |
d5783c40 JB |
405 | || *y < top || *y >= top + window_height) |
406 | return 0; | |
407 | ||
111e5992 RS |
408 | if (left_margin != left && *x < left_margin && *x >= left) |
409 | return 3; | |
410 | ||
411 | if (right_margin != right_edge && *x >= right_margin && *x < right_edge) | |
412 | return 3; | |
413 | ||
d5783c40 JB |
414 | /* Is the character is the mode line? */ |
415 | if (*y == top + window_height - 1 | |
05c2896a | 416 | && ! MINI_WINDOW_P (w)) |
d5783c40 | 417 | return 2; |
37962e60 | 418 | |
111e5992 | 419 | *x -= WINDOW_LEFT_MARGIN (w); |
d5783c40 JB |
420 | *y -= top; |
421 | return 1; | |
422 | } | |
423 | ||
424 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, | |
425 | Scoordinates_in_window_p, 2, 2, 0, | |
426 | "Return non-nil if COORDINATES are in WINDOW.\n\ | |
1113d9db | 427 | COORDINATES is a cons of the form (X . Y), X and Y being distances\n\ |
44fa5b1e | 428 | measured in characters from the upper-left corner of the frame.\n\ |
1113d9db | 429 | (0 . 0) denotes the character in the upper left corner of the\n\ |
44fa5b1e | 430 | frame.\n\ |
d5783c40 JB |
431 | If COORDINATES are in the text portion of WINDOW,\n\ |
432 | the coordinates relative to the window are returned.\n\ | |
e5d77022 | 433 | If they are in the mode line of WINDOW, `mode-line' is returned.\n\ |
d5783c40 | 434 | If they are on the border between WINDOW and its right sibling,\n\ |
e5d77022 | 435 | `vertical-line' is returned.") |
d5783c40 JB |
436 | (coordinates, window) |
437 | register Lisp_Object coordinates, window; | |
438 | { | |
439 | int x, y; | |
440 | ||
605be8af | 441 | CHECK_LIVE_WINDOW (window, 0); |
d5783c40 JB |
442 | CHECK_CONS (coordinates, 1); |
443 | x = XINT (Fcar (coordinates)); | |
444 | y = XINT (Fcdr (coordinates)); | |
445 | ||
446 | switch (coordinates_in_window (XWINDOW (window), &x, &y)) | |
447 | { | |
448 | case 0: /* NOT in window at all. */ | |
449 | return Qnil; | |
450 | ||
451 | case 1: /* In text part of window. */ | |
452 | return Fcons (x, y); | |
453 | ||
454 | case 2: /* In mode line of window. */ | |
455 | return Qmode_line; | |
37962e60 | 456 | |
d5783c40 | 457 | case 3: /* On right border of window. */ |
e5d77022 | 458 | return Qvertical_line; |
d5783c40 JB |
459 | |
460 | default: | |
461 | abort (); | |
462 | } | |
463 | } | |
464 | ||
7ab12479 | 465 | /* Find the window containing column x, row y, and return it as a |
d5783c40 JB |
466 | Lisp_Object. If x, y is on the window's modeline, set *part |
467 | to 1; if it is on the separating line between the window and its | |
468 | right sibling, set it to 2; otherwise set it to 0. If there is no | |
469 | window under x, y return nil and leave *part unmodified. */ | |
7ab12479 | 470 | Lisp_Object |
44fa5b1e JB |
471 | window_from_coordinates (frame, x, y, part) |
472 | FRAME_PTR frame; | |
7ab12479 | 473 | int x, y; |
d5783c40 | 474 | int *part; |
7ab12479 JB |
475 | { |
476 | register Lisp_Object tem, first; | |
477 | ||
44fa5b1e | 478 | tem = first = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 479 | |
d5783c40 | 480 | do |
7ab12479 JB |
481 | { |
482 | int found = coordinates_in_window (XWINDOW (tem), &x, &y); | |
483 | ||
484 | if (found) | |
485 | { | |
d5783c40 | 486 | *part = found - 1; |
7ab12479 JB |
487 | return tem; |
488 | } | |
489 | ||
d5783c40 | 490 | tem = Fnext_window (tem, Qt, Qlambda); |
7ab12479 | 491 | } |
d5783c40 | 492 | while (! EQ (tem, first)); |
37962e60 | 493 | |
d5783c40 | 494 | return Qnil; |
7ab12479 JB |
495 | } |
496 | ||
ab17c3f2 | 497 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
b0c33a94 | 498 | "Return window containing coordinates X and Y on FRAME.\n\ |
44fa5b1e JB |
499 | If omitted, FRAME defaults to the currently selected frame.\n\ |
500 | The top left corner of the frame is considered to be row 0,\n\ | |
95605e15 | 501 | column 0.") |
b0c33a94 RS |
502 | (x, y, frame) |
503 | Lisp_Object x, y, frame; | |
7ab12479 JB |
504 | { |
505 | int part; | |
506 | ||
44fa5b1e | 507 | if (NILP (frame)) |
74112613 | 508 | XSETFRAME (frame, selected_frame); |
d5783c40 | 509 | else |
44fa5b1e | 510 | CHECK_LIVE_FRAME (frame, 2); |
b0c33a94 RS |
511 | CHECK_NUMBER (x, 0); |
512 | CHECK_NUMBER (y, 1); | |
7ab12479 | 513 | |
44fa5b1e | 514 | return window_from_coordinates (XFRAME (frame), |
b0c33a94 | 515 | XINT (x), XINT (y), |
7ab12479 JB |
516 | &part); |
517 | } | |
518 | ||
519 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
520 | "Return current value of point in WINDOW.\n\ | |
521 | For a nonselected window, this is the value point would have\n\ | |
522 | if that window were selected.\n\ | |
523 | \n\ | |
524 | Note that, when WINDOW is the selected window and its buffer\n\ | |
525 | is also currently selected, the value returned is the same as (point).\n\ | |
526 | It would be more strictly correct to return the `top-level' value\n\ | |
527 | of point, outside of any save-excursion forms.\n\ | |
528 | But that is hard to define.") | |
529 | (window) | |
530 | Lisp_Object window; | |
531 | { | |
532 | register struct window *w = decode_window (window); | |
533 | ||
534 | if (w == XWINDOW (selected_window) | |
535 | && current_buffer == XBUFFER (w->buffer)) | |
536 | return Fpoint (); | |
537 | return Fmarker_position (w->pointm); | |
538 | } | |
539 | ||
540 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
0fea6c40 RS |
541 | "Return position at which display currently starts in WINDOW.\n\ |
542 | This is updated by redisplay or by calling `set-window-start'.") | |
7ab12479 JB |
543 | (window) |
544 | Lisp_Object window; | |
545 | { | |
546 | return Fmarker_position (decode_window (window)->start); | |
547 | } | |
548 | ||
8646118f RS |
549 | /* This is text temporarily removed from the doc string below. |
550 | ||
7250968e RS |
551 | This function returns nil if the position is not currently known.\n\ |
552 | That happens when redisplay is preempted and doesn't finish.\n\ | |
553 | If in that case you want to compute where the end of the window would\n\ | |
554 | have been if redisplay had finished, do this:\n\ | |
555 | (save-excursion\n\ | |
556 | (goto-char (window-start window))\n\ | |
557 | (vertical-motion (1- (window-height window)) window)\n\ | |
8646118f RS |
558 | (point))") */ |
559 | ||
560 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 1, 0, | |
561 | "Return position at which display currently ends in WINDOW.\n\ | |
562 | This is updated by redisplay, when it runs to completion.\n\ | |
563 | Simply changing the buffer text or setting `window-start'\n\ | |
564 | does not update this value.") | |
7ab12479 JB |
565 | (window) |
566 | Lisp_Object window; | |
567 | { | |
568 | Lisp_Object value; | |
569 | struct window *w = decode_window (window); | |
5a41ab94 RS |
570 | Lisp_Object buf; |
571 | ||
572 | buf = w->buffer; | |
573 | CHECK_BUFFER (buf, 0); | |
574 | ||
8646118f | 575 | #if 0 /* This change broke some things. We should make it later. */ |
7250968e RS |
576 | /* If we don't know the end position, return nil. |
577 | The user can compute it with vertical-motion if he wants to. | |
578 | It would be nicer to do it automatically, | |
579 | but that's so slow that it would probably bother people. */ | |
580 | if (NILP (w->window_end_valid)) | |
581 | return Qnil; | |
8646118f | 582 | #endif |
7250968e | 583 | |
74112613 KH |
584 | XSETINT (value, |
585 | BUF_Z (XBUFFER (buf)) - XFASTINT (w->window_end_pos)); | |
7ab12479 JB |
586 | |
587 | return value; | |
588 | } | |
589 | ||
590 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, | |
591 | "Make point value in WINDOW be at position POS in WINDOW's buffer.") | |
592 | (window, pos) | |
593 | Lisp_Object window, pos; | |
594 | { | |
595 | register struct window *w = decode_window (window); | |
596 | ||
597 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
598 | if (w == XWINDOW (selected_window)) | |
599 | Fgoto_char (pos); | |
600 | else | |
601 | set_marker_restricted (w->pointm, pos, w->buffer); | |
602 | ||
603 | return pos; | |
604 | } | |
605 | ||
606 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
607 | "Make display in WINDOW start at position POS in WINDOW's buffer.\n\ | |
608 | Optional third arg NOFORCE non-nil inhibits next redisplay\n\ | |
609 | from overriding motion of point in order to display at this exact start.") | |
610 | (window, pos, noforce) | |
611 | Lisp_Object window, pos, noforce; | |
612 | { | |
613 | register struct window *w = decode_window (window); | |
614 | ||
615 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
616 | set_marker_restricted (w->start, pos, w->buffer); | |
617 | /* this is not right, but much easier than doing what is right. */ | |
618 | w->start_at_line_beg = Qnil; | |
265a9e55 | 619 | if (NILP (noforce)) |
7ab12479 JB |
620 | w->force_start = Qt; |
621 | w->update_mode_line = Qt; | |
d834a2e9 | 622 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 623 | XSETFASTINT (w->last_overlay_modified, 0); |
62c07cc7 JB |
624 | if (!EQ (window, selected_window)) |
625 | windows_or_buffers_changed++; | |
7ab12479 JB |
626 | return pos; |
627 | } | |
628 | ||
629 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, | |
630 | 1, 1, 0, | |
631 | "Return WINDOW's dedicated object, usually t or nil.\n\ | |
1f18c48f | 632 | See also `set-window-dedicated-p'.") |
7ab12479 JB |
633 | (window) |
634 | Lisp_Object window; | |
635 | { | |
636 | return decode_window (window)->dedicated; | |
637 | } | |
638 | ||
d207b766 RS |
639 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
640 | Sset_window_dedicated_p, 2, 2, 0, | |
641 | "Control whether WINDOW is dedicated to the buffer it displays.\n\ | |
642 | If it is dedicated, Emacs will not automatically change\n\ | |
643 | which buffer appears in it.\n\ | |
644 | The second argument is the new value for the dedication flag;\n\ | |
645 | non-nil means yes.") | |
7ab12479 JB |
646 | (window, arg) |
647 | Lisp_Object window, arg; | |
648 | { | |
649 | register struct window *w = decode_window (window); | |
650 | ||
265a9e55 | 651 | if (NILP (arg)) |
7ab12479 JB |
652 | w->dedicated = Qnil; |
653 | else | |
d207b766 | 654 | w->dedicated = Qt; |
7ab12479 JB |
655 | |
656 | return w->dedicated; | |
657 | } | |
658 | ||
659 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, | |
660 | 0, 1, 0, | |
661 | "Return the display-table that WINDOW is using.") | |
662 | (window) | |
663 | Lisp_Object window; | |
664 | { | |
665 | return decode_window (window)->display_table; | |
666 | } | |
667 | ||
668 | /* Get the display table for use currently on window W. | |
669 | This is either W's display table or W's buffer's display table. | |
670 | Ignore the specified tables if they are not valid; | |
671 | if no valid table is specified, return 0. */ | |
672 | ||
319315f1 | 673 | struct Lisp_Char_Table * |
7ab12479 JB |
674 | window_display_table (w) |
675 | struct window *w; | |
676 | { | |
677 | Lisp_Object tem; | |
678 | tem = w->display_table; | |
319315f1 RS |
679 | if (DISP_TABLE_P (tem)) |
680 | return XCHAR_TABLE (tem); | |
7ab12479 | 681 | tem = XBUFFER (w->buffer)->display_table; |
319315f1 RS |
682 | if (DISP_TABLE_P (tem)) |
683 | return XCHAR_TABLE (tem); | |
7ab12479 | 684 | tem = Vstandard_display_table; |
319315f1 RS |
685 | if (DISP_TABLE_P (tem)) |
686 | return XCHAR_TABLE (tem); | |
7ab12479 JB |
687 | return 0; |
688 | } | |
689 | ||
3a2712f9 | 690 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
7ab12479 JB |
691 | "Set WINDOW's display-table to TABLE.") |
692 | (window, table) | |
693 | register Lisp_Object window, table; | |
694 | { | |
695 | register struct window *w; | |
696 | register Lisp_Object z; /* Return value. */ | |
697 | ||
698 | w = decode_window (window); | |
699 | w->display_table = table; | |
700 | return table; | |
701 | } | |
702 | \f | |
703 | /* Record info on buffer window w is displaying | |
704 | when it is about to cease to display that buffer. */ | |
705 | static | |
706 | unshow_buffer (w) | |
707 | register struct window *w; | |
708 | { | |
12cae7c0 | 709 | Lisp_Object buf; |
7ab12479 | 710 | |
12cae7c0 | 711 | buf = w->buffer; |
7ab12479 JB |
712 | if (XBUFFER (buf) != XMARKER (w->pointm)->buffer) |
713 | abort (); | |
714 | ||
86e48436 RS |
715 | if (w == XWINDOW (XBUFFER (buf)->last_selected_window)) |
716 | XBUFFER (buf)->last_selected_window = Qnil; | |
717 | ||
573f41ab | 718 | #if 0 |
7ab12479 JB |
719 | if (w == XWINDOW (selected_window) |
720 | || ! EQ (buf, XWINDOW (selected_window)->buffer)) | |
721 | /* Do this except when the selected window's buffer | |
722 | is being removed from some other window. */ | |
573f41ab RS |
723 | #endif |
724 | /* last_window_start records the start position that this buffer | |
725 | had in the last window to be disconnected from it. | |
726 | Now that this statement is unconditional, | |
727 | it is possible for the buffer to be displayed in the | |
728 | selected window, while last_window_start reflects another | |
729 | window which was recently showing the same buffer. | |
730 | Some people might say that might be a good thing. Let's see. */ | |
7ab12479 JB |
731 | XBUFFER (buf)->last_window_start = marker_position (w->start); |
732 | ||
733 | /* Point in the selected window's buffer | |
734 | is actually stored in that buffer, and the window's pointm isn't used. | |
735 | So don't clobber point in that buffer. */ | |
736 | if (! EQ (buf, XWINDOW (selected_window)->buffer)) | |
737 | BUF_PT (XBUFFER (buf)) | |
738 | = clip_to_bounds (BUF_BEGV (XBUFFER (buf)), | |
739 | marker_position (w->pointm), | |
740 | BUF_ZV (XBUFFER (buf))); | |
741 | } | |
742 | ||
743 | /* Put replacement into the window structure in place of old. */ | |
744 | static | |
745 | replace_window (old, replacement) | |
746 | Lisp_Object old, replacement; | |
747 | { | |
748 | register Lisp_Object tem; | |
749 | register struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
750 | ||
44fa5b1e JB |
751 | /* If OLD is its frame's root_window, then replacement is the new |
752 | root_window for that frame. */ | |
7ab12479 | 753 | |
7f4161e0 | 754 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
44fa5b1e | 755 | FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; |
7ab12479 JB |
756 | |
757 | p->left = o->left; | |
758 | p->top = o->top; | |
759 | p->width = o->width; | |
760 | p->height = o->height; | |
761 | ||
762 | p->next = tem = o->next; | |
265a9e55 | 763 | if (!NILP (tem)) |
7ab12479 JB |
764 | XWINDOW (tem)->prev = replacement; |
765 | ||
766 | p->prev = tem = o->prev; | |
265a9e55 | 767 | if (!NILP (tem)) |
7ab12479 JB |
768 | XWINDOW (tem)->next = replacement; |
769 | ||
770 | p->parent = tem = o->parent; | |
265a9e55 | 771 | if (!NILP (tem)) |
7ab12479 JB |
772 | { |
773 | if (EQ (XWINDOW (tem)->vchild, old)) | |
774 | XWINDOW (tem)->vchild = replacement; | |
775 | if (EQ (XWINDOW (tem)->hchild, old)) | |
776 | XWINDOW (tem)->hchild = replacement; | |
777 | } | |
778 | ||
779 | /*** Here, if replacement is a vertical combination | |
780 | and so is its new parent, we should make replacement's | |
781 | children be children of that parent instead. ***/ | |
782 | } | |
783 | ||
784 | DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 1, "", | |
785 | "Remove WINDOW from the display. Default is selected window.") | |
786 | (window) | |
787 | register Lisp_Object window; | |
788 | { | |
789 | register Lisp_Object tem, parent, sib; | |
790 | register struct window *p; | |
791 | register struct window *par; | |
792 | ||
605be8af JB |
793 | /* Because this function is called by other C code on non-leaf |
794 | windows, the CHECK_LIVE_WINDOW macro would choke inappropriately, | |
795 | so we can't decode_window here. */ | |
265a9e55 | 796 | if (NILP (window)) |
7ab12479 JB |
797 | window = selected_window; |
798 | else | |
799 | CHECK_WINDOW (window, 0); | |
7ab12479 | 800 | p = XWINDOW (window); |
605be8af JB |
801 | |
802 | /* It's okay to delete an already-deleted window. */ | |
803 | if (NILP (p->buffer) | |
804 | && NILP (p->hchild) | |
805 | && NILP (p->vchild)) | |
806 | return Qnil; | |
807 | ||
7ab12479 | 808 | parent = p->parent; |
265a9e55 | 809 | if (NILP (parent)) |
7ab12479 JB |
810 | error ("Attempt to delete minibuffer or sole ordinary window"); |
811 | par = XWINDOW (parent); | |
812 | ||
813 | windows_or_buffers_changed++; | |
29aeee73 | 814 | FRAME_WINDOW_SIZES_CHANGED (XFRAME (WINDOW_FRAME (p))) = 1; |
7ab12479 | 815 | |
605be8af JB |
816 | /* Are we trying to delete any frame's selected window? */ |
817 | { | |
0def0403 | 818 | Lisp_Object frame, pwindow; |
605be8af | 819 | |
0def0403 RS |
820 | /* See if the frame's selected window is either WINDOW |
821 | or any subwindow of it, by finding all that window's parents | |
822 | and comparing each one with WINDOW. */ | |
823 | frame = WINDOW_FRAME (XWINDOW (window)); | |
824 | pwindow = FRAME_SELECTED_WINDOW (XFRAME (frame)); | |
825 | ||
826 | while (!NILP (pwindow)) | |
827 | { | |
828 | if (EQ (window, pwindow)) | |
829 | break; | |
830 | pwindow = XWINDOW (pwindow)->parent; | |
831 | } | |
832 | ||
833 | if (EQ (window, pwindow)) | |
605be8af | 834 | { |
89bca612 RS |
835 | Lisp_Object alternative; |
836 | alternative = Fnext_window (window, Qlambda, Qnil); | |
605be8af JB |
837 | |
838 | /* If we're about to delete the selected window on the | |
839 | selected frame, then we should use Fselect_window to select | |
840 | the new window. On the other hand, if we're about to | |
841 | delete the selected window on any other frame, we shouldn't do | |
842 | anything but set the frame's selected_window slot. */ | |
843 | if (EQ (window, selected_window)) | |
844 | Fselect_window (alternative); | |
845 | else | |
0def0403 | 846 | FRAME_SELECTED_WINDOW (XFRAME (frame)) = alternative; |
605be8af JB |
847 | } |
848 | } | |
7ab12479 JB |
849 | |
850 | tem = p->buffer; | |
851 | /* tem is null for dummy parent windows | |
852 | (which have inferiors but not any contents themselves) */ | |
265a9e55 | 853 | if (!NILP (tem)) |
7ab12479 JB |
854 | { |
855 | unshow_buffer (p); | |
856 | unchain_marker (p->pointm); | |
857 | unchain_marker (p->start); | |
7ab12479 JB |
858 | } |
859 | ||
860 | tem = p->next; | |
265a9e55 | 861 | if (!NILP (tem)) |
7ab12479 JB |
862 | XWINDOW (tem)->prev = p->prev; |
863 | ||
864 | tem = p->prev; | |
265a9e55 | 865 | if (!NILP (tem)) |
7ab12479 JB |
866 | XWINDOW (tem)->next = p->next; |
867 | ||
868 | if (EQ (window, par->hchild)) | |
869 | par->hchild = p->next; | |
870 | if (EQ (window, par->vchild)) | |
871 | par->vchild = p->next; | |
872 | ||
873 | /* Find one of our siblings to give our space to. */ | |
874 | sib = p->prev; | |
265a9e55 | 875 | if (NILP (sib)) |
7ab12479 JB |
876 | { |
877 | /* If p gives its space to its next sibling, that sibling needs | |
878 | to have its top/left side pulled back to where p's is. | |
879 | set_window_{height,width} will re-position the sibling's | |
880 | children. */ | |
881 | sib = p->next; | |
7f4161e0 JB |
882 | XWINDOW (sib)->top = p->top; |
883 | XWINDOW (sib)->left = p->left; | |
7ab12479 JB |
884 | } |
885 | ||
886 | /* Stretch that sibling. */ | |
265a9e55 | 887 | if (!NILP (par->vchild)) |
7ab12479 JB |
888 | set_window_height (sib, |
889 | XFASTINT (XWINDOW (sib)->height) + XFASTINT (p->height), | |
890 | 1); | |
265a9e55 | 891 | if (!NILP (par->hchild)) |
7ab12479 JB |
892 | set_window_width (sib, |
893 | XFASTINT (XWINDOW (sib)->width) + XFASTINT (p->width), | |
894 | 1); | |
895 | ||
896 | /* If parent now has only one child, | |
897 | put the child into the parent's place. */ | |
7ab12479 | 898 | tem = par->hchild; |
265a9e55 | 899 | if (NILP (tem)) |
7ab12479 | 900 | tem = par->vchild; |
265a9e55 | 901 | if (NILP (XWINDOW (tem)->next)) |
7ab12479 | 902 | replace_window (parent, tem); |
605be8af JB |
903 | |
904 | /* Since we may be deleting combination windows, we must make sure that | |
905 | not only p but all its children have been marked as deleted. */ | |
906 | if (! NILP (p->hchild)) | |
907 | delete_all_subwindows (XWINDOW (p->hchild)); | |
908 | else if (! NILP (p->vchild)) | |
909 | delete_all_subwindows (XWINDOW (p->vchild)); | |
910 | ||
911 | /* Mark this window as deleted. */ | |
912 | p->buffer = p->hchild = p->vchild = Qnil; | |
913 | ||
7ab12479 JB |
914 | return Qnil; |
915 | } | |
916 | \f | |
7ab12479 | 917 | |
44fa5b1e | 918 | extern Lisp_Object next_frame (), prev_frame (); |
7ab12479 | 919 | |
26f6279d JB |
920 | /* This comment supplies the doc string for `next-window', |
921 | for make-docfile to see. We cannot put this in the real DEFUN | |
922 | due to limits in the Unix cpp. | |
923 | ||
924 | DEFUN ("next-window", Ffoo, Sfoo, 0, 3, 0, | |
7ab12479 | 925 | "Return next window after WINDOW in canonical ordering of windows.\n\ |
d5783c40 JB |
926 | If omitted, WINDOW defaults to the selected window.\n\ |
927 | \n\ | |
928 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
929 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
930 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
931 | minibuffer even if it is active.\n\ | |
932 | \n\ | |
44fa5b1e JB |
933 | Several frames may share a single minibuffer; if the minibuffer\n\ |
934 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 935 | too. Therefore, `next-window' can be used to iterate through the\n\ |
44fa5b1e JB |
936 | set of windows even when the minibuffer is on another frame. If the\n\ |
937 | minibuffer does not count, only windows from WINDOW's frame count.\n\ | |
d5783c40 | 938 | \n\ |
44fa5b1e JB |
939 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
940 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 941 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 942 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
1f4c5d09 | 943 | If ALL-FRAMES is a frame, restrict search to windows on that frame.\n\ |
89bca612 | 944 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
945 | \n\ |
946 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
947 | `next-window' to iterate through the entire cycle of acceptable\n\ | |
948 | windows, eventually ending up back at the window you started with.\n\ | |
949 | `previous-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
950 | (window, minibuf, all_frames) */ |
951 | ||
952 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, | |
953 | 0) | |
44fa5b1e JB |
954 | (window, minibuf, all_frames) |
955 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
956 | { |
957 | register Lisp_Object tem; | |
d5783c40 | 958 | Lisp_Object start_window; |
7ab12479 | 959 | |
265a9e55 | 960 | if (NILP (window)) |
7ab12479 JB |
961 | window = selected_window; |
962 | else | |
605be8af | 963 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 964 | |
d5783c40 JB |
965 | start_window = window; |
966 | ||
967 | /* minibuf == nil may or may not include minibuffers. | |
968 | Decide if it does. */ | |
265a9e55 | 969 | if (NILP (minibuf)) |
fbdc1545 RS |
970 | minibuf = (minibuf_level ? minibuf_window : Qlambda); |
971 | else if (! EQ (minibuf, Qt)) | |
972 | minibuf = Qlambda; | |
973 | /* Now minibuf can be t => count all minibuffer windows, | |
974 | lambda => count none of them, | |
975 | or a specific minibuffer window (the active one) to count. */ | |
d5783c40 | 976 | |
1bb80f72 | 977 | /* all_frames == nil doesn't specify which frames to include. */ |
44fa5b1e | 978 | if (NILP (all_frames)) |
fbdc1545 | 979 | all_frames = (! EQ (minibuf, Qlambda) |
1bb80f72 RS |
980 | ? (FRAME_MINIBUF_WINDOW |
981 | (XFRAME | |
982 | (WINDOW_FRAME | |
983 | (XWINDOW (window))))) | |
984 | : Qnil); | |
89bca612 RS |
985 | else if (EQ (all_frames, Qvisible)) |
986 | ; | |
f812f9c6 RS |
987 | else if (XFASTINT (all_frames) == 0) |
988 | ; | |
1f4c5d09 RS |
989 | else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window))) |
990 | /* If all_frames is a frame and window arg isn't on that frame, just | |
991 | return the first window on the frame. */ | |
992 | return Fframe_first_window (all_frames); | |
44fa5b1e JB |
993 | else if (! EQ (all_frames, Qt)) |
994 | all_frames = Qnil; | |
644b477c RS |
995 | /* Now all_frames is t meaning search all frames, |
996 | nil meaning search just current frame, | |
f812f9c6 RS |
997 | visible meaning search just visible frames, |
998 | 0 meaning search visible and iconified frames, | |
644b477c | 999 | or a window, meaning search the frame that window belongs to. */ |
7ab12479 JB |
1000 | |
1001 | /* Do this loop at least once, to get the next window, and perhaps | |
1002 | again, if we hit the minibuffer and that is not acceptable. */ | |
1003 | do | |
1004 | { | |
1005 | /* Find a window that actually has a next one. This loop | |
1006 | climbs up the tree. */ | |
265a9e55 JB |
1007 | while (tem = XWINDOW (window)->next, NILP (tem)) |
1008 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 1009 | window = tem; |
d5783c40 | 1010 | else |
7ab12479 | 1011 | { |
44fa5b1e JB |
1012 | /* We've reached the end of this frame. |
1013 | Which other frames are acceptable? */ | |
1014 | tem = WINDOW_FRAME (XWINDOW (window)); | |
44fa5b1e | 1015 | if (! NILP (all_frames)) |
1bb80f72 RS |
1016 | { |
1017 | Lisp_Object tem1; | |
1018 | ||
1019 | tem1 = tem; | |
1020 | tem = next_frame (tem, all_frames); | |
1021 | /* In the case where the minibuffer is active, | |
1022 | and we include its frame as well as the selected one, | |
1023 | next_frame may get stuck in that frame. | |
1024 | If that happens, go back to the selected frame | |
1025 | so we can complete the cycle. */ | |
1026 | if (EQ (tem, tem1)) | |
74112613 | 1027 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 1028 | } |
44fa5b1e | 1029 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 1030 | |
7ab12479 JB |
1031 | break; |
1032 | } | |
1033 | ||
1034 | window = tem; | |
d5783c40 | 1035 | |
7ab12479 JB |
1036 | /* If we're in a combination window, find its first child and |
1037 | recurse on that. Otherwise, we've found the window we want. */ | |
1038 | while (1) | |
1039 | { | |
265a9e55 | 1040 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 1041 | window = XWINDOW (window)->hchild; |
265a9e55 | 1042 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
1043 | window = XWINDOW (window)->vchild; |
1044 | else break; | |
1045 | } | |
1046 | } | |
5c4d25a6 | 1047 | /* Which windows are acceptable? |
d5783c40 | 1048 | Exit the loop and accept this window if |
fbdc1545 RS |
1049 | this isn't a minibuffer window, |
1050 | or we're accepting all minibuffer windows, | |
1051 | or this is the active minibuffer and we are accepting that one, or | |
d5783c40 | 1052 | we've come all the way around and we're back at the original window. */ |
7ab12479 | 1053 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 1054 | && ! EQ (minibuf, Qt) |
fbdc1545 | 1055 | && ! EQ (minibuf, window) |
7f4161e0 | 1056 | && ! EQ (window, start_window)); |
7ab12479 JB |
1057 | |
1058 | return window; | |
1059 | } | |
1060 | ||
26f6279d JB |
1061 | /* This comment supplies the doc string for `previous-window', |
1062 | for make-docfile to see. We cannot put this in the real DEFUN | |
1063 | due to limits in the Unix cpp. | |
1064 | ||
1065 | DEFUN ("previous-window", Ffoo, Sfoo, 0, 3, 0, | |
5c4d25a6 | 1066 | "Return the window preceding WINDOW in canonical ordering of windows.\n\ |
d5783c40 JB |
1067 | If omitted, WINDOW defaults to the selected window.\n\ |
1068 | \n\ | |
1069 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
1070 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
1071 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
1072 | minibuffer even if it is active.\n\ | |
1073 | \n\ | |
44fa5b1e JB |
1074 | Several frames may share a single minibuffer; if the minibuffer\n\ |
1075 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 1076 | too. Therefore, `previous-window' can be used to iterate through\n\ |
44fa5b1e | 1077 | the set of windows even when the minibuffer is on another frame. If\n\ |
ed160f1f | 1078 | the minibuffer does not count, only windows from WINDOW's frame count\n\ |
d5783c40 | 1079 | \n\ |
44fa5b1e JB |
1080 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
1081 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 1082 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 1083 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
1f4c5d09 | 1084 | If ALL-FRAMES is a frame, restrict search to windows on that frame.\n\ |
89bca612 | 1085 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
1086 | \n\ |
1087 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
1088 | `previous-window' to iterate through the entire cycle of acceptable\n\ | |
1089 | windows, eventually ending up back at the window you started with.\n\ | |
1090 | `next-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
1091 | (window, minibuf, all_frames) */ |
1092 | ||
1093 | ||
1094 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, | |
1095 | 0) | |
44fa5b1e JB |
1096 | (window, minibuf, all_frames) |
1097 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
1098 | { |
1099 | register Lisp_Object tem; | |
d5783c40 | 1100 | Lisp_Object start_window; |
7ab12479 | 1101 | |
265a9e55 | 1102 | if (NILP (window)) |
7ab12479 JB |
1103 | window = selected_window; |
1104 | else | |
605be8af | 1105 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 1106 | |
d5783c40 JB |
1107 | start_window = window; |
1108 | ||
1109 | /* minibuf == nil may or may not include minibuffers. | |
1110 | Decide if it does. */ | |
265a9e55 | 1111 | if (NILP (minibuf)) |
fbdc1545 RS |
1112 | minibuf = (minibuf_level ? minibuf_window : Qlambda); |
1113 | else if (! EQ (minibuf, Qt)) | |
1114 | minibuf = Qlambda; | |
1115 | /* Now minibuf can be t => count all minibuffer windows, | |
1116 | lambda => count none of them, | |
1117 | or a specific minibuffer window (the active one) to count. */ | |
d5783c40 | 1118 | |
44fa5b1e JB |
1119 | /* all_frames == nil doesn't specify which frames to include. |
1120 | Decide which frames it includes. */ | |
1121 | if (NILP (all_frames)) | |
fbdc1545 | 1122 | all_frames = (! EQ (minibuf, Qlambda) |
44fa5b1e JB |
1123 | ? (FRAME_MINIBUF_WINDOW |
1124 | (XFRAME | |
1125 | (WINDOW_FRAME | |
d5783c40 JB |
1126 | (XWINDOW (window))))) |
1127 | : Qnil); | |
89bca612 RS |
1128 | else if (EQ (all_frames, Qvisible)) |
1129 | ; | |
f812f9c6 RS |
1130 | else if (XFASTINT (all_frames) == 0) |
1131 | ; | |
1f4c5d09 RS |
1132 | else if (FRAMEP (all_frames) && ! EQ (all_frames, Fwindow_frame (window))) |
1133 | /* If all_frames is a frame and window arg isn't on that frame, just | |
1134 | return the first window on the frame. */ | |
1135 | return Fframe_first_window (all_frames); | |
44fa5b1e JB |
1136 | else if (! EQ (all_frames, Qt)) |
1137 | all_frames = Qnil; | |
644b477c RS |
1138 | /* Now all_frames is t meaning search all frames, |
1139 | nil meaning search just current frame, | |
f812f9c6 RS |
1140 | visible meaning search just visible frames, |
1141 | 0 meaning search visible and iconified frames, | |
644b477c | 1142 | or a window, meaning search the frame that window belongs to. */ |
7ab12479 JB |
1143 | |
1144 | /* Do this loop at least once, to get the previous window, and perhaps | |
1145 | again, if we hit the minibuffer and that is not acceptable. */ | |
1146 | do | |
1147 | { | |
1148 | /* Find a window that actually has a previous one. This loop | |
1149 | climbs up the tree. */ | |
265a9e55 JB |
1150 | while (tem = XWINDOW (window)->prev, NILP (tem)) |
1151 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 1152 | window = tem; |
d5783c40 | 1153 | else |
7ab12479 | 1154 | { |
44fa5b1e JB |
1155 | /* We have found the top window on the frame. |
1156 | Which frames are acceptable? */ | |
1157 | tem = WINDOW_FRAME (XWINDOW (window)); | |
44fa5b1e | 1158 | if (! NILP (all_frames)) |
dbc4e1c1 JB |
1159 | /* It's actually important that we use prev_frame here, |
1160 | rather than next_frame. All the windows acceptable | |
1161 | according to the given parameters should form a ring; | |
1162 | Fnext_window and Fprevious_window should go back and | |
1163 | forth around the ring. If we use next_frame here, | |
1164 | then Fnext_window and Fprevious_window take different | |
1165 | paths through the set of acceptable windows. | |
1166 | window_loop assumes that these `ring' requirement are | |
1167 | met. */ | |
1bb80f72 RS |
1168 | { |
1169 | Lisp_Object tem1; | |
1170 | ||
1171 | tem1 = tem; | |
1172 | tem = prev_frame (tem, all_frames); | |
1173 | /* In the case where the minibuffer is active, | |
1174 | and we include its frame as well as the selected one, | |
1175 | next_frame may get stuck in that frame. | |
1176 | If that happens, go back to the selected frame | |
1177 | so we can complete the cycle. */ | |
1178 | if (EQ (tem, tem1)) | |
74112613 | 1179 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 1180 | } |
644b477c RS |
1181 | /* If this frame has a minibuffer, find that window first, |
1182 | because it is conceptually the last window in that frame. */ | |
5e12e32f JB |
1183 | if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) |
1184 | tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
1185 | else | |
644b477c | 1186 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 1187 | |
7ab12479 JB |
1188 | break; |
1189 | } | |
1190 | ||
1191 | window = tem; | |
1192 | /* If we're in a combination window, find its last child and | |
1193 | recurse on that. Otherwise, we've found the window we want. */ | |
1194 | while (1) | |
1195 | { | |
265a9e55 | 1196 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 1197 | window = XWINDOW (window)->hchild; |
265a9e55 | 1198 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
1199 | window = XWINDOW (window)->vchild; |
1200 | else break; | |
265a9e55 | 1201 | while (tem = XWINDOW (window)->next, !NILP (tem)) |
7ab12479 JB |
1202 | window = tem; |
1203 | } | |
1204 | } | |
5c4d25a6 | 1205 | /* Which windows are acceptable? |
d5783c40 | 1206 | Exit the loop and accept this window if |
fbdc1545 RS |
1207 | this isn't a minibuffer window, |
1208 | or we're accepting all minibuffer windows, | |
1209 | or this is the active minibuffer and we are accepting that one, or | |
d5783c40 | 1210 | we've come all the way around and we're back at the original window. */ |
7ab12479 | 1211 | while (MINI_WINDOW_P (XWINDOW (window)) |
fbdc1545 RS |
1212 | && ! EQ (minibuf, Qt) |
1213 | && ! EQ (minibuf, window) | |
1214 | && ! EQ (window, start_window)); | |
7ab12479 JB |
1215 | |
1216 | return window; | |
1217 | } | |
1218 | ||
62c07cc7 | 1219 | DEFUN ("other-window", Fother_window, Sother_window, 1, 2, "p", |
44fa5b1e JB |
1220 | "Select the ARG'th different window on this frame.\n\ |
1221 | All windows on current frame are arranged in a cyclic order.\n\ | |
7ab12479 JB |
1222 | This command selects the window ARG steps away in that order.\n\ |
1223 | A negative ARG moves in the opposite order. If the optional second\n\ | |
44fa5b1e | 1224 | argument ALL_FRAMES is non-nil, cycle through all frames.") |
413430c5 EN |
1225 | (arg, all_frames) |
1226 | register Lisp_Object arg, all_frames; | |
7ab12479 JB |
1227 | { |
1228 | register int i; | |
1229 | register Lisp_Object w; | |
1230 | ||
413430c5 | 1231 | CHECK_NUMBER (arg, 0); |
7ab12479 | 1232 | w = selected_window; |
413430c5 | 1233 | i = XINT (arg); |
7ab12479 JB |
1234 | |
1235 | while (i > 0) | |
1236 | { | |
44fa5b1e | 1237 | w = Fnext_window (w, Qnil, all_frames); |
7ab12479 JB |
1238 | i--; |
1239 | } | |
1240 | while (i < 0) | |
1241 | { | |
44fa5b1e | 1242 | w = Fprevious_window (w, Qnil, all_frames); |
7ab12479 JB |
1243 | i++; |
1244 | } | |
1245 | Fselect_window (w); | |
1246 | return Qnil; | |
1247 | } | |
1248 | \f | |
1249 | /* Look at all windows, performing an operation specified by TYPE | |
1250 | with argument OBJ. | |
75d8f668 | 1251 | If FRAMES is Qt, look at all frames; |
75d8f668 | 1252 | Qnil, look at just the selected frame; |
89bca612 | 1253 | Qvisible, look at visible frames; |
75d8f668 | 1254 | a frame, just look at windows on that frame. |
7ab12479 JB |
1255 | If MINI is non-zero, perform the operation on minibuffer windows too. |
1256 | */ | |
1257 | ||
1258 | enum window_loop | |
1259 | { | |
1260 | WINDOW_LOOP_UNUSED, | |
1261 | GET_BUFFER_WINDOW, /* Arg is buffer */ | |
1262 | GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
1263 | DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
1264 | DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
1265 | GET_LARGEST_WINDOW, | |
a68c0d3b | 1266 | UNSHOW_BUFFER /* Arg is buffer */ |
7ab12479 JB |
1267 | }; |
1268 | ||
1269 | static Lisp_Object | |
44fa5b1e | 1270 | window_loop (type, obj, mini, frames) |
7ab12479 | 1271 | enum window_loop type; |
44fa5b1e | 1272 | register Lisp_Object obj, frames; |
7ab12479 JB |
1273 | int mini; |
1274 | { | |
1275 | register Lisp_Object w; | |
1276 | register Lisp_Object best_window; | |
1277 | register Lisp_Object next_window; | |
4b206065 | 1278 | register Lisp_Object last_window; |
44fa5b1e | 1279 | FRAME_PTR frame; |
89bca612 RS |
1280 | Lisp_Object frame_arg; |
1281 | frame_arg = Qt; | |
44fa5b1e JB |
1282 | |
1283 | /* If we're only looping through windows on a particular frame, | |
1284 | frame points to that frame. If we're looping through windows | |
1285 | on all frames, frame is 0. */ | |
1286 | if (FRAMEP (frames)) | |
1287 | frame = XFRAME (frames); | |
1288 | else if (NILP (frames)) | |
1289 | frame = selected_frame; | |
7ab12479 | 1290 | else |
44fa5b1e | 1291 | frame = 0; |
89bca612 RS |
1292 | if (frame) |
1293 | frame_arg = Qlambda; | |
f812f9c6 RS |
1294 | else if (XFASTINT (frames) == 0) |
1295 | frame_arg = frames; | |
89bca612 RS |
1296 | else if (EQ (frames, Qvisible)) |
1297 | frame_arg = frames; | |
7ab12479 | 1298 | |
89bca612 RS |
1299 | /* frame_arg is Qlambda to stick to one frame, |
1300 | Qvisible to consider all visible frames, | |
1301 | or Qt otherwise. */ | |
1302 | ||
7ab12479 | 1303 | /* Pick a window to start with. */ |
017b2bad | 1304 | if (WINDOWP (obj)) |
4b206065 | 1305 | w = obj; |
44fa5b1e | 1306 | else if (frame) |
4b206065 | 1307 | w = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 1308 | else |
4b206065 JB |
1309 | w = FRAME_SELECTED_WINDOW (selected_frame); |
1310 | ||
1311 | /* Figure out the last window we're going to mess with. Since | |
1312 | Fnext_window, given the same options, is guaranteed to go in a | |
1313 | ring, we can just use Fprevious_window to find the last one. | |
1314 | ||
1315 | We can't just wait until we hit the first window again, because | |
1316 | it might be deleted. */ | |
1317 | ||
89bca612 | 1318 | last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1319 | |
7ab12479 | 1320 | best_window = Qnil; |
4b206065 | 1321 | for (;;) |
7ab12479 | 1322 | { |
75d8f668 JB |
1323 | FRAME_PTR w_frame = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
1324 | ||
7ab12479 JB |
1325 | /* Pick the next window now, since some operations will delete |
1326 | the current window. */ | |
89bca612 | 1327 | next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1328 | |
d29a5631 RS |
1329 | /* Note that we do not pay attention here to whether |
1330 | the frame is visible, since Fnext_window skips non-visible frames | |
1331 | if that is desired, under the control of frame_arg. */ | |
75d8f668 | 1332 | if (! MINI_WINDOW_P (XWINDOW (w)) |
7ab12479 JB |
1333 | || (mini && minibuf_level > 0)) |
1334 | switch (type) | |
1335 | { | |
1336 | case GET_BUFFER_WINDOW: | |
5c204627 RS |
1337 | if (XBUFFER (XWINDOW (w)->buffer) == XBUFFER (obj) |
1338 | /* Don't find any minibuffer window | |
1339 | except the one that is currently in use. */ | |
1340 | && (MINI_WINDOW_P (XWINDOW (w)) | |
1341 | ? EQ (w, minibuf_window) : 1)) | |
7ab12479 JB |
1342 | return w; |
1343 | break; | |
1344 | ||
1345 | case GET_LRU_WINDOW: | |
1346 | /* t as arg means consider only full-width windows */ | |
111e5992 | 1347 | if (!NILP (obj) && !WINDOW_FULL_WIDTH_P (XWINDOW (w))) |
7ab12479 | 1348 | break; |
7ab12479 JB |
1349 | /* Ignore dedicated windows and minibuffers. */ |
1350 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1351 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 | 1352 | break; |
265a9e55 | 1353 | if (NILP (best_window) |
7ab12479 JB |
1354 | || (XFASTINT (XWINDOW (best_window)->use_time) |
1355 | > XFASTINT (XWINDOW (w)->use_time))) | |
1356 | best_window = w; | |
1357 | break; | |
1358 | ||
1359 | case DELETE_OTHER_WINDOWS: | |
1360 | if (XWINDOW (w) != XWINDOW (obj)) | |
1361 | Fdelete_window (w); | |
1362 | break; | |
1363 | ||
1364 | case DELETE_BUFFER_WINDOWS: | |
1365 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1366 | { | |
3548e138 RS |
1367 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
1368 | ||
1369 | /* If this window is dedicated, and in a frame of its own, | |
1370 | kill the frame. */ | |
1371 | if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
1372 | && !NILP (XWINDOW (w)->dedicated) | |
1373 | && other_visible_frames (f)) | |
7ab12479 | 1374 | { |
3548e138 RS |
1375 | /* Skip the other windows on this frame. |
1376 | There might be one, the minibuffer! */ | |
1377 | if (! EQ (w, last_window)) | |
1378 | while (f == XFRAME (WINDOW_FRAME (XWINDOW (next_window)))) | |
1379 | { | |
1380 | /* As we go, check for the end of the loop. | |
1381 | We mustn't start going around a second time. */ | |
1382 | if (EQ (next_window, last_window)) | |
1383 | { | |
1384 | last_window = w; | |
1385 | break; | |
1386 | } | |
1387 | next_window = Fnext_window (next_window, | |
1388 | mini ? Qt : Qnil, | |
1389 | frame_arg); | |
1390 | } | |
1391 | /* Now we can safely delete the frame. */ | |
1392 | Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil); | |
7ab12479 JB |
1393 | } |
1394 | else | |
3548e138 RS |
1395 | /* If we're deleting the buffer displayed in the only window |
1396 | on the frame, find a new buffer to display there. */ | |
1397 | if (NILP (XWINDOW (w)->parent)) | |
1398 | { | |
1399 | Lisp_Object new_buffer; | |
1400 | new_buffer = Fother_buffer (obj, Qnil); | |
1401 | if (NILP (new_buffer)) | |
1402 | new_buffer | |
1403 | = Fget_buffer_create (build_string ("*scratch*")); | |
1404 | Fset_window_buffer (w, new_buffer); | |
1405 | if (EQ (w, selected_window)) | |
1406 | Fset_buffer (XWINDOW (w)->buffer); | |
1407 | } | |
1408 | else | |
1409 | Fdelete_window (w); | |
7ab12479 JB |
1410 | } |
1411 | break; | |
1412 | ||
1413 | case GET_LARGEST_WINDOW: | |
7ab12479 JB |
1414 | /* Ignore dedicated windows and minibuffers. */ |
1415 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1416 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 JB |
1417 | break; |
1418 | { | |
1419 | struct window *best_window_ptr = XWINDOW (best_window); | |
1420 | struct window *w_ptr = XWINDOW (w); | |
6b54027b RS |
1421 | if (NILP (best_window) |
1422 | || (XFASTINT (w_ptr->height) * XFASTINT (w_ptr->width) | |
1423 | > (XFASTINT (best_window_ptr->height) | |
1424 | * XFASTINT (best_window_ptr->width)))) | |
7ab12479 JB |
1425 | best_window = w; |
1426 | } | |
1427 | break; | |
1428 | ||
1429 | case UNSHOW_BUFFER: | |
1430 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1431 | { | |
1432 | /* Find another buffer to show in this window. */ | |
12cae7c0 | 1433 | Lisp_Object another_buffer; |
38ab08d1 | 1434 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
12cae7c0 | 1435 | another_buffer = Fother_buffer (obj, Qnil); |
265a9e55 | 1436 | if (NILP (another_buffer)) |
7ab12479 JB |
1437 | another_buffer |
1438 | = Fget_buffer_create (build_string ("*scratch*")); | |
38ab08d1 RS |
1439 | /* If this window is dedicated, and in a frame of its own, |
1440 | kill the frame. */ | |
1441 | if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
596122a7 | 1442 | && !NILP (XWINDOW (w)->dedicated) |
38ab08d1 | 1443 | && other_visible_frames (f)) |
45945a7b RS |
1444 | { |
1445 | /* Skip the other windows on this frame. | |
1446 | There might be one, the minibuffer! */ | |
1447 | if (! EQ (w, last_window)) | |
1448 | while (f == XFRAME (WINDOW_FRAME (XWINDOW (next_window)))) | |
1449 | { | |
1450 | /* As we go, check for the end of the loop. | |
1451 | We mustn't start going around a second time. */ | |
1452 | if (EQ (next_window, last_window)) | |
1453 | { | |
1454 | last_window = w; | |
1455 | break; | |
1456 | } | |
1457 | next_window = Fnext_window (next_window, | |
1458 | mini ? Qt : Qnil, | |
1459 | frame_arg); | |
1460 | } | |
1461 | /* Now we can safely delete the frame. */ | |
1462 | Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil); | |
1463 | } | |
38ab08d1 | 1464 | else |
38ab08d1 RS |
1465 | { |
1466 | /* Otherwise show a different buffer in the window. */ | |
1467 | XWINDOW (w)->dedicated = Qnil; | |
1468 | Fset_window_buffer (w, another_buffer); | |
1469 | if (EQ (w, selected_window)) | |
1470 | Fset_buffer (XWINDOW (w)->buffer); | |
1471 | } | |
7ab12479 JB |
1472 | } |
1473 | break; | |
1474 | } | |
4b206065 JB |
1475 | |
1476 | if (EQ (w, last_window)) | |
1477 | break; | |
1478 | ||
7ab12479 JB |
1479 | w = next_window; |
1480 | } | |
7ab12479 JB |
1481 | |
1482 | return best_window; | |
37962e60 | 1483 | } |
605be8af | 1484 | |
7ab12479 JB |
1485 | DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0, |
1486 | "Return the window least recently selected or used for display.\n\ | |
89bca612 | 1487 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1488 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1489 | If FRAME is t, search all frames.\n\ |
1490 | If FRAME is nil, search only the selected frame.\n\ | |
1491 | If FRAME is a frame, search only that frame.") | |
1492 | (frame) | |
1493 | Lisp_Object frame; | |
7ab12479 JB |
1494 | { |
1495 | register Lisp_Object w; | |
1496 | /* First try for a window that is full-width */ | |
89bca612 | 1497 | w = window_loop (GET_LRU_WINDOW, Qt, 0, frame); |
265a9e55 | 1498 | if (!NILP (w) && !EQ (w, selected_window)) |
7ab12479 JB |
1499 | return w; |
1500 | /* If none of them, try the rest */ | |
89bca612 | 1501 | return window_loop (GET_LRU_WINDOW, Qnil, 0, frame); |
7ab12479 JB |
1502 | } |
1503 | ||
1504 | DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 1, 0, | |
1505 | "Return the largest window in area.\n\ | |
89bca612 | 1506 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1507 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1508 | If FRAME is t, search all frames.\n\ |
1509 | If FRAME is nil, search only the selected frame.\n\ | |
1510 | If FRAME is a frame, search only that frame.") | |
44fa5b1e JB |
1511 | (frame) |
1512 | Lisp_Object frame; | |
7ab12479 JB |
1513 | { |
1514 | return window_loop (GET_LARGEST_WINDOW, Qnil, 0, | |
44fa5b1e | 1515 | frame); |
7ab12479 JB |
1516 | } |
1517 | ||
1518 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 2, 0, | |
1519 | "Return a window currently displaying BUFFER, or nil if none.\n\ | |
89bca612 | 1520 | If optional argument FRAME is `visible', search all visible frames.\n\ |
f812f9c6 | 1521 | If optional argument FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 | 1522 | If FRAME is t, search all frames.\n\ |
1bc981d2 | 1523 | If FRAME is nil, search only the selected frame.\n\ |
89bca612 | 1524 | If FRAME is a frame, search only that frame.") |
44fa5b1e JB |
1525 | (buffer, frame) |
1526 | Lisp_Object buffer, frame; | |
7ab12479 JB |
1527 | { |
1528 | buffer = Fget_buffer (buffer); | |
017b2bad | 1529 | if (BUFFERP (buffer)) |
44fa5b1e | 1530 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame); |
7ab12479 JB |
1531 | else |
1532 | return Qnil; | |
1533 | } | |
1534 | ||
1535 | DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows, | |
1536 | 0, 1, "", | |
44fa5b1e | 1537 | "Make WINDOW (or the selected window) fill its frame.\n\ |
f16a1ed3 RS |
1538 | Only the frame WINDOW is on is affected.\n\ |
1539 | This function tries to reduce display jumps\n\ | |
1540 | by keeping the text previously visible in WINDOW\n\ | |
1541 | in the same place on the frame. Doing this depends on\n\ | |
1542 | the value of (window-start WINDOW), so if calling this function\n\ | |
1543 | in a program gives strange scrolling, make sure the window-start\n\ | |
1544 | value is reasonable when this function is called.") | |
7ab12479 JB |
1545 | (window) |
1546 | Lisp_Object window; | |
1547 | { | |
1548 | struct window *w; | |
00d3d838 | 1549 | int startpos; |
7ab12479 JB |
1550 | int top; |
1551 | ||
265a9e55 | 1552 | if (NILP (window)) |
7ab12479 JB |
1553 | window = selected_window; |
1554 | else | |
605be8af | 1555 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1556 | |
1557 | w = XWINDOW (window); | |
a2b38b3c | 1558 | |
00d3d838 KH |
1559 | startpos = marker_position (w->start); |
1560 | top = XFASTINT (w->top) - FRAME_MENU_BAR_LINES (XFRAME (WINDOW_FRAME (w))); | |
7ab12479 | 1561 | |
a2b38b3c RS |
1562 | if (MINI_WINDOW_P (w) && top > 0) |
1563 | error ("Can't expand minibuffer to full frame"); | |
1564 | ||
70728a80 | 1565 | window_loop (DELETE_OTHER_WINDOWS, window, 0, WINDOW_FRAME (w)); |
7ab12479 | 1566 | |
00d3d838 KH |
1567 | /* Try to minimize scrolling, by setting the window start to the point |
1568 | will cause the text at the old window start to be at the same place | |
1569 | on the frame. But don't try to do this if the window start is | |
1570 | outside the visible portion (as might happen when the display is | |
1571 | not current, due to typeahead). */ | |
1572 | if (startpos >= BUF_BEGV (XBUFFER (w->buffer)) | |
1573 | && startpos <= BUF_ZV (XBUFFER (w->buffer))) | |
1574 | { | |
1575 | struct position pos; | |
1576 | struct buffer *obuf = current_buffer; | |
1577 | ||
1578 | Fset_buffer (w->buffer); | |
1579 | /* This computation used to temporarily move point, but that can | |
1580 | have unwanted side effects due to text properties. */ | |
0383eb57 | 1581 | pos = *vmotion (startpos, -top, w); |
4d047f50 | 1582 | |
00d3d838 KH |
1583 | Fset_marker (w->start, make_number (pos.bufpos), w->buffer); |
1584 | w->start_at_line_beg = ((pos.bufpos == BEGV | |
5a255667 | 1585 | || FETCH_BYTE (pos.bufpos - 1) == '\n') ? Qt |
00d3d838 | 1586 | : Qnil); |
80622eec RS |
1587 | /* We need to do this, so that the window-scroll-functions |
1588 | get called. */ | |
4d047f50 | 1589 | w->optional_new_start = Qt; |
00d3d838 KH |
1590 | |
1591 | set_buffer_internal (obuf); | |
1592 | } | |
7ab12479 JB |
1593 | return Qnil; |
1594 | } | |
1595 | ||
1596 | DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on, | |
3cbbb729 | 1597 | 1, 2, "bDelete windows on (buffer): ", |
26f6279d JB |
1598 | "Delete all windows showing BUFFER.\n\ |
1599 | Optional second argument FRAME controls which frames are affected.\n\ | |
1600 | If nil or omitted, delete all windows showing BUFFER in any frame.\n\ | |
1601 | If t, delete only windows showing BUFFER in the selected frame.\n\ | |
89bca612 | 1602 | If `visible', delete all windows showing BUFFER in any visible frame.\n\ |
26f6279d JB |
1603 | If a frame, delete only windows showing BUFFER in that frame.") |
1604 | (buffer, frame) | |
1605 | Lisp_Object buffer, frame; | |
7ab12479 | 1606 | { |
26f6279d JB |
1607 | /* FRAME uses t and nil to mean the opposite of what window_loop |
1608 | expects. */ | |
1609 | if (! FRAMEP (frame)) | |
1610 | frame = NILP (frame) ? Qt : Qnil; | |
26f6279d | 1611 | |
265a9e55 | 1612 | if (!NILP (buffer)) |
7ab12479 JB |
1613 | { |
1614 | buffer = Fget_buffer (buffer); | |
1615 | CHECK_BUFFER (buffer, 0); | |
26f6279d | 1616 | window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame); |
7ab12479 JB |
1617 | } |
1618 | return Qnil; | |
1619 | } | |
1620 | ||
1621 | DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, | |
1622 | Sreplace_buffer_in_windows, | |
1623 | 1, 1, "bReplace buffer in windows: ", | |
1624 | "Replace BUFFER with some other buffer in all windows showing it.") | |
1625 | (buffer) | |
1626 | Lisp_Object buffer; | |
1627 | { | |
265a9e55 | 1628 | if (!NILP (buffer)) |
7ab12479 JB |
1629 | { |
1630 | buffer = Fget_buffer (buffer); | |
1631 | CHECK_BUFFER (buffer, 0); | |
1632 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1633 | } | |
1634 | return Qnil; | |
1635 | } | |
ff58478b RS |
1636 | |
1637 | /* Replace BUFFER with some other buffer in all windows | |
1638 | of all frames, even those on other keyboards. */ | |
1639 | ||
1640 | void | |
1641 | replace_buffer_in_all_windows (buffer) | |
1642 | Lisp_Object buffer; | |
1643 | { | |
27abb84f | 1644 | #ifdef MULTI_KBOARD |
ff58478b RS |
1645 | Lisp_Object tail, frame; |
1646 | ||
ff58478b RS |
1647 | /* A single call to window_loop won't do the job |
1648 | because it only considers frames on the current keyboard. | |
1649 | So loop manually over frames, and handle each one. */ | |
1650 | FOR_EACH_FRAME (tail, frame) | |
27abb84f | 1651 | window_loop (UNSHOW_BUFFER, buffer, 0, frame); |
ff58478b RS |
1652 | #else |
1653 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1654 | #endif | |
1655 | } | |
7ab12479 JB |
1656 | \f |
1657 | /* Set the height of WINDOW and all its inferiors. */ | |
a481b3ea JB |
1658 | |
1659 | /* The smallest acceptable dimensions for a window. Anything smaller | |
1660 | might crash Emacs. */ | |
1661 | #define MIN_SAFE_WINDOW_WIDTH (2) | |
1662 | #define MIN_SAFE_WINDOW_HEIGHT (2) | |
1663 | ||
1664 | /* Make sure that window_min_height and window_min_width are | |
1665 | not too small; if they are, set them to safe minima. */ | |
1666 | ||
1667 | static void | |
1668 | check_min_window_sizes () | |
1669 | { | |
1670 | /* Smaller values might permit a crash. */ | |
1671 | if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
1672 | window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
1673 | if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
1674 | window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
1675 | } | |
1676 | ||
1677 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the | |
1678 | minimum allowable size. */ | |
605be8af | 1679 | void |
a481b3ea | 1680 | check_frame_size (frame, rows, cols) |
605be8af JB |
1681 | FRAME_PTR frame; |
1682 | int *rows, *cols; | |
a481b3ea | 1683 | { |
628df3bf | 1684 | /* For height, we have to see: |
37962e60 | 1685 | whether the frame has a minibuffer, |
628df3bf JB |
1686 | whether it wants a mode line, and |
1687 | whether it has a menu bar. */ | |
a481b3ea | 1688 | int min_height = |
79f92720 JB |
1689 | (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 |
1690 | : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
a481b3ea | 1691 | : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); |
628df3bf JB |
1692 | if (FRAME_MENU_BAR_LINES (frame) > 0) |
1693 | min_height += FRAME_MENU_BAR_LINES (frame); | |
a481b3ea JB |
1694 | |
1695 | if (*rows < min_height) | |
1696 | *rows = min_height; | |
1697 | if (*cols < MIN_SAFE_WINDOW_WIDTH) | |
1698 | *cols = MIN_SAFE_WINDOW_WIDTH; | |
1699 | } | |
1700 | ||
7ab12479 JB |
1701 | /* Normally the window is deleted if it gets too small. |
1702 | nodelete nonzero means do not do this. | |
1703 | (The caller should check later and do so if appropriate) */ | |
1704 | ||
1705 | set_window_height (window, height, nodelete) | |
1706 | Lisp_Object window; | |
1707 | int height; | |
1708 | int nodelete; | |
1709 | { | |
1710 | register struct window *w = XWINDOW (window); | |
1711 | register struct window *c; | |
1712 | int oheight = XFASTINT (w->height); | |
1713 | int top, pos, lastbot, opos, lastobot; | |
1714 | Lisp_Object child; | |
1715 | ||
a481b3ea JB |
1716 | check_min_window_sizes (); |
1717 | ||
7ab12479 | 1718 | if (!nodelete |
265a9e55 | 1719 | && ! NILP (w->parent) |
7ab12479 JB |
1720 | && height < window_min_height) |
1721 | { | |
1722 | Fdelete_window (window); | |
1723 | return; | |
1724 | } | |
1725 | ||
d834a2e9 | 1726 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 1727 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 1728 | windows_or_buffers_changed++; |
29aeee73 RS |
1729 | FRAME_WINDOW_SIZES_CHANGED (XFRAME (WINDOW_FRAME (w))) = 1; |
1730 | ||
d834a2e9 | 1731 | XSETFASTINT (w->height, height); |
265a9e55 | 1732 | if (!NILP (w->hchild)) |
7ab12479 | 1733 | { |
265a9e55 | 1734 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1735 | { |
1736 | XWINDOW (child)->top = w->top; | |
1737 | set_window_height (child, height, nodelete); | |
1738 | } | |
1739 | } | |
265a9e55 | 1740 | else if (!NILP (w->vchild)) |
7ab12479 JB |
1741 | { |
1742 | lastbot = top = XFASTINT (w->top); | |
1743 | lastobot = 0; | |
265a9e55 | 1744 | for (child = w->vchild; !NILP (child); child = c->next) |
7ab12479 JB |
1745 | { |
1746 | c = XWINDOW (child); | |
1747 | ||
1748 | opos = lastobot + XFASTINT (c->height); | |
1749 | ||
d834a2e9 | 1750 | XSETFASTINT (c->top, lastbot); |
7ab12479 JB |
1751 | |
1752 | pos = (((opos * height) << 1) + oheight) / (oheight << 1); | |
1753 | ||
1754 | /* Avoid confusion: inhibit deletion of child if becomes too small */ | |
1755 | set_window_height (child, pos + top - lastbot, 1); | |
1756 | ||
1757 | /* Now advance child to next window, | |
1758 | and set lastbot if child was not just deleted. */ | |
1759 | lastbot = pos + top; | |
1760 | lastobot = opos; | |
1761 | } | |
1762 | /* Now delete any children that became too small. */ | |
1763 | if (!nodelete) | |
265a9e55 | 1764 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1765 | { |
1766 | set_window_height (child, XINT (XWINDOW (child)->height), 0); | |
1767 | } | |
1768 | } | |
1769 | } | |
1770 | ||
1771 | /* Recursively set width of WINDOW and its inferiors. */ | |
1772 | ||
1773 | set_window_width (window, width, nodelete) | |
1774 | Lisp_Object window; | |
1775 | int width; | |
1776 | int nodelete; | |
1777 | { | |
1778 | register struct window *w = XWINDOW (window); | |
1779 | register struct window *c; | |
1780 | int owidth = XFASTINT (w->width); | |
1781 | int left, pos, lastright, opos, lastoright; | |
1782 | Lisp_Object child; | |
1783 | ||
abdced83 | 1784 | if (!nodelete && width < window_min_width && !NILP (w->parent)) |
7ab12479 JB |
1785 | { |
1786 | Fdelete_window (window); | |
1787 | return; | |
1788 | } | |
1789 | ||
d834a2e9 | 1790 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 1791 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 1792 | windows_or_buffers_changed++; |
29aeee73 RS |
1793 | FRAME_WINDOW_SIZES_CHANGED (XFRAME (WINDOW_FRAME (w))) = 1; |
1794 | ||
d834a2e9 | 1795 | XSETFASTINT (w->width, width); |
265a9e55 | 1796 | if (!NILP (w->vchild)) |
7ab12479 | 1797 | { |
265a9e55 | 1798 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1799 | { |
1800 | XWINDOW (child)->left = w->left; | |
1801 | set_window_width (child, width, nodelete); | |
1802 | } | |
1803 | } | |
265a9e55 | 1804 | else if (!NILP (w->hchild)) |
7ab12479 JB |
1805 | { |
1806 | lastright = left = XFASTINT (w->left); | |
1807 | lastoright = 0; | |
265a9e55 | 1808 | for (child = w->hchild; !NILP (child); child = c->next) |
7ab12479 JB |
1809 | { |
1810 | c = XWINDOW (child); | |
1811 | ||
1812 | opos = lastoright + XFASTINT (c->width); | |
1813 | ||
d834a2e9 | 1814 | XSETFASTINT (c->left, lastright); |
7ab12479 JB |
1815 | |
1816 | pos = (((opos * width) << 1) + owidth) / (owidth << 1); | |
1817 | ||
1818 | /* Inhibit deletion for becoming too small */ | |
1819 | set_window_width (child, pos + left - lastright, 1); | |
1820 | ||
1821 | /* Now advance child to next window, | |
1822 | and set lastright if child was not just deleted. */ | |
1823 | lastright = pos + left, lastoright = opos; | |
1824 | } | |
1825 | /* Delete children that became too small */ | |
1826 | if (!nodelete) | |
265a9e55 | 1827 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1828 | { |
1829 | set_window_width (child, XINT (XWINDOW (child)->width), 0); | |
1830 | } | |
1831 | } | |
1832 | } | |
1833 | \f | |
1d8d96fa | 1834 | int window_select_count; |
7ab12479 | 1835 | |
5b03d3c0 RS |
1836 | Lisp_Object |
1837 | Fset_window_buffer_unwind (obuf) | |
1838 | Lisp_Object obuf; | |
1839 | { | |
1840 | Fset_buffer (obuf); | |
1841 | return Qnil; | |
1842 | } | |
1843 | ||
7ab12479 JB |
1844 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0, |
1845 | "Make WINDOW display BUFFER as its contents.\n\ | |
1846 | BUFFER can be a buffer or buffer name.") | |
1847 | (window, buffer) | |
1848 | register Lisp_Object window, buffer; | |
1849 | { | |
1850 | register Lisp_Object tem; | |
1851 | register struct window *w = decode_window (window); | |
5b03d3c0 | 1852 | int count = specpdl_ptr - specpdl; |
7ab12479 JB |
1853 | |
1854 | buffer = Fget_buffer (buffer); | |
1855 | CHECK_BUFFER (buffer, 1); | |
1856 | ||
265a9e55 | 1857 | if (NILP (XBUFFER (buffer)->name)) |
7ab12479 JB |
1858 | error ("Attempt to display deleted buffer"); |
1859 | ||
1860 | tem = w->buffer; | |
265a9e55 | 1861 | if (NILP (tem)) |
7ab12479 JB |
1862 | error ("Window is deleted"); |
1863 | else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
1864 | is first being set up. */ | |
1865 | { | |
265a9e55 | 1866 | if (!NILP (w->dedicated) && !EQ (tem, buffer)) |
3cf85532 RS |
1867 | error ("Window is dedicated to `%s'", |
1868 | XSTRING (XBUFFER (tem)->name)->data); | |
7ab12479 JB |
1869 | |
1870 | unshow_buffer (w); | |
1871 | } | |
1872 | ||
1873 | w->buffer = buffer; | |
86e48436 RS |
1874 | |
1875 | if (EQ (window, selected_window)) | |
1876 | XBUFFER (w->buffer)->last_selected_window = window; | |
850ebd4f RS |
1877 | if (INTEGERP (XBUFFER (buffer)->display_count)) |
1878 | XSETINT (XBUFFER (buffer)->display_count, | |
1879 | XBUFFER (buffer)->display_count + 1); | |
86e48436 | 1880 | |
d834a2e9 | 1881 | XSETFASTINT (w->window_end_pos, 0); |
5a41ab94 | 1882 | w->window_end_valid = Qnil; |
dba06815 | 1883 | XSETFASTINT (w->hscroll, 0); |
7ab12479 JB |
1884 | Fset_marker (w->pointm, |
1885 | make_number (BUF_PT (XBUFFER (buffer))), | |
1886 | buffer); | |
1887 | set_marker_restricted (w->start, | |
1888 | make_number (XBUFFER (buffer)->last_window_start), | |
1889 | buffer); | |
1890 | w->start_at_line_beg = Qnil; | |
e36ab06b | 1891 | w->force_start = Qnil; |
d834a2e9 | 1892 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 1893 | XSETFASTINT (w->last_overlay_modified, 0); |
7ab12479 | 1894 | windows_or_buffers_changed++; |
5b03d3c0 RS |
1895 | |
1896 | /* We must select BUFFER for running the window-scroll-functions. | |
1897 | If WINDOW is selected, switch permanently. | |
1898 | Otherwise, switch but go back to the ambient buffer afterward. */ | |
7ab12479 JB |
1899 | if (EQ (window, selected_window)) |
1900 | Fset_buffer (buffer); | |
5b03d3c0 RS |
1901 | /* We can't check ! NILP (Vwindow_scroll_functions) here |
1902 | because that might itself be a local variable. */ | |
1903 | else if (window_initialized) | |
1904 | { | |
1905 | record_unwind_protect (Fset_window_buffer_unwind, Fcurrent_buffer ()); | |
1906 | Fset_buffer (buffer); | |
1907 | } | |
1908 | ||
dba06815 RS |
1909 | if (! NILP (Vwindow_scroll_functions)) |
1910 | run_hook_with_args_2 (Qwindow_scroll_functions, window, | |
1911 | Fmarker_position (w->start)); | |
7ab12479 | 1912 | |
5b03d3c0 RS |
1913 | unbind_to (count, Qnil); |
1914 | ||
7ab12479 JB |
1915 | return Qnil; |
1916 | } | |
1917 | ||
1918 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0, | |
1919 | "Select WINDOW. Most editing will apply to WINDOW's buffer.\n\ | |
1920 | The main editor command loop selects the buffer of the selected window\n\ | |
1921 | before each command.") | |
1922 | (window) | |
1923 | register Lisp_Object window; | |
1924 | { | |
1925 | register struct window *w; | |
1926 | register struct window *ow = XWINDOW (selected_window); | |
1927 | ||
605be8af | 1928 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1929 | |
1930 | w = XWINDOW (window); | |
1931 | ||
265a9e55 | 1932 | if (NILP (w->buffer)) |
7ab12479 JB |
1933 | error ("Trying to select deleted window or non-leaf window"); |
1934 | ||
d834a2e9 | 1935 | XSETFASTINT (w->use_time, ++window_select_count); |
7ab12479 JB |
1936 | if (EQ (window, selected_window)) |
1937 | return window; | |
1938 | ||
1939 | Fset_marker (ow->pointm, make_number (BUF_PT (XBUFFER (ow->buffer))), | |
1940 | ow->buffer); | |
1941 | ||
1942 | selected_window = window; | |
44fa5b1e | 1943 | if (XFRAME (WINDOW_FRAME (w)) != selected_frame) |
7ab12479 | 1944 | { |
44fa5b1e | 1945 | XFRAME (WINDOW_FRAME (w))->selected_window = window; |
147a6615 RS |
1946 | /* Use this rather than Fhandle_switch_frame |
1947 | so that FRAME_FOCUS_FRAME is moved appropriately as we | |
1948 | move around in the state where a minibuffer in a separate | |
1949 | frame is active. */ | |
1950 | Fselect_frame (WINDOW_FRAME (w), Qnil); | |
7ab12479 JB |
1951 | } |
1952 | else | |
44fa5b1e | 1953 | selected_frame->selected_window = window; |
7ab12479 JB |
1954 | |
1955 | record_buffer (w->buffer); | |
1956 | Fset_buffer (w->buffer); | |
1957 | ||
86e48436 RS |
1958 | XBUFFER (w->buffer)->last_selected_window = window; |
1959 | ||
7ab12479 JB |
1960 | /* Go to the point recorded in the window. |
1961 | This is important when the buffer is in more | |
1962 | than one window. It also matters when | |
1963 | redisplay_window has altered point after scrolling, | |
1964 | because it makes the change only in the window. */ | |
1965 | { | |
1966 | register int new_point = marker_position (w->pointm); | |
1967 | if (new_point < BEGV) | |
1968 | SET_PT (BEGV); | |
a9c95e08 | 1969 | else if (new_point > ZV) |
7ab12479 JB |
1970 | SET_PT (ZV); |
1971 | else | |
1972 | SET_PT (new_point); | |
1973 | } | |
1974 | ||
1975 | windows_or_buffers_changed++; | |
1976 | return window; | |
1977 | } | |
1978 | ||
441a127e RS |
1979 | /* Deiconify the frame containing the window WINDOW, |
1980 | unless it is the selected frame; | |
1981 | then return WINDOW. | |
1982 | ||
1983 | The reason for the exception for the selected frame | |
1984 | is that it seems better not to change the selected frames visibility | |
1985 | merely because of displaying a different buffer in it. | |
1986 | The deiconification is useful when a buffer gets shown in | |
1987 | another frame that you were not using lately. */ | |
d07f802a RS |
1988 | |
1989 | static Lisp_Object | |
1990 | display_buffer_1 (window) | |
1991 | Lisp_Object window; | |
1992 | { | |
d07f802a RS |
1993 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
1994 | FRAME_SAMPLE_VISIBILITY (f); | |
60117126 RS |
1995 | if (f != selected_frame) |
1996 | { | |
1997 | if (FRAME_ICONIFIED_P (f)) | |
1998 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
37962e60 | 1999 | else if (FRAME_VISIBLE_P (f)) |
60117126 RS |
2000 | Fraise_frame (WINDOW_FRAME (XWINDOW (window))); |
2001 | } | |
d07f802a RS |
2002 | return window; |
2003 | } | |
2004 | ||
4628f7a4 | 2005 | DEFUN ("special-display-p", Fspecial_display_p, Sspecial_display_p, 1, 1, 0, |
0f7d64d2 GV |
2006 | "Returns non-nil if a buffer named BUFFER-NAME would be created specially.\n\ |
2007 | The value is actually t if the frame should be called with default frame\n\ | |
2008 | parameters, and a list of frame parameters if they were specified.\n\ | |
4628f7a4 EN |
2009 | See `special-display-buffer-names', and `special-display-regexps'.") |
2010 | (buffer_name) | |
2011 | Lisp_Object buffer_name; | |
2012 | { | |
2013 | Lisp_Object tem; | |
2014 | ||
2015 | CHECK_STRING (buffer_name, 1); | |
2016 | ||
2017 | tem = Fmember (buffer_name, Vspecial_display_buffer_names); | |
2018 | if (!NILP (tem)) | |
2019 | return Qt; | |
2020 | ||
2021 | tem = Fassoc (buffer_name, Vspecial_display_buffer_names); | |
2022 | if (!NILP (tem)) | |
2023 | return XCDR (tem); | |
2024 | ||
2025 | for (tem = Vspecial_display_regexps; CONSP (tem); tem = XCDR (tem)) | |
2026 | { | |
2027 | Lisp_Object car = XCAR (tem); | |
2028 | if (STRINGP (car) | |
2029 | && fast_string_match (car, buffer_name) >= 0) | |
2030 | return Qt; | |
2031 | else if (CONSP (car) | |
2032 | && STRINGP (XCAR (car)) | |
2033 | && fast_string_match (XCAR (car), buffer_name) >= 0) | |
2034 | return XCDR (tem); | |
2035 | } | |
2036 | return Qnil; | |
2037 | } | |
2038 | ||
2039 | DEFUN ("same-window-p", Fsame_window_p, Ssame_window_p, 1, 1, 0, | |
0f7d64d2 | 2040 | "Returns non-nil if a new buffer named BUFFER-NAME would use the same window.\n\ |
4628f7a4 EN |
2041 | See `same-window-buffer-names' and `same-window-regexps'.") |
2042 | (buffer_name) | |
2043 | Lisp_Object buffer_name; | |
2044 | { | |
2045 | Lisp_Object tem; | |
2046 | ||
2047 | CHECK_STRING (buffer_name, 1); | |
2048 | ||
2049 | tem = Fmember (buffer_name, Vsame_window_buffer_names); | |
2050 | if (!NILP (tem)) | |
2051 | return Qt; | |
2052 | ||
2053 | tem = Fassoc (buffer_name, Vsame_window_buffer_names); | |
2054 | if (!NILP (tem)) | |
2055 | return Qt; | |
2056 | ||
2057 | for (tem = Vsame_window_regexps; CONSP (tem); tem = XCDR (tem)) | |
2058 | { | |
2059 | Lisp_Object car = XCAR (tem); | |
2060 | if (STRINGP (car) | |
2061 | && fast_string_match (car, buffer_name) >= 0) | |
2062 | return Qt; | |
2063 | else if (CONSP (car) | |
2064 | && STRINGP (XCAR (car)) | |
2065 | && fast_string_match (XCAR (car), buffer_name) >= 0) | |
2066 | return Qt; | |
2067 | } | |
2068 | return Qnil; | |
2069 | } | |
2070 | ||
35aaf00c | 2071 | DEFUN ("display-buffer", Fdisplay_buffer, Sdisplay_buffer, 1, 2, |
869e65bb | 2072 | "bDisplay buffer: \nP", |
7ab12479 JB |
2073 | "Make BUFFER appear in some window but don't select it.\n\ |
2074 | BUFFER can be a buffer or a buffer name.\n\ | |
2075 | If BUFFER is shown already in some window, just use that one,\n\ | |
2076 | unless the window is the selected window and the optional second\n\ | |
46d3268a | 2077 | argument NOT-THIS-WINDOW is non-nil (interactively, with prefix arg).\n\ |
5141b901 | 2078 | If `pop-up-frames' is non-nil, make a new frame if no window shows BUFFER.\n\ |
5abcf432 RS |
2079 | Returns the window displaying BUFFER.\n\ |
2080 | \n\ | |
2081 | The variables `special-display-buffer-names', `special-display-regexps',\n\ | |
2082 | `same-window-buffer-names', and `same-window-regexps' customize how certain\n\ | |
2083 | buffer names are handled.") | |
7ab12479 JB |
2084 | (buffer, not_this_window) |
2085 | register Lisp_Object buffer, not_this_window; | |
2086 | { | |
a90712c2 | 2087 | register Lisp_Object window, tem; |
7ab12479 JB |
2088 | |
2089 | buffer = Fget_buffer (buffer); | |
2090 | CHECK_BUFFER (buffer, 0); | |
2091 | ||
265a9e55 | 2092 | if (!NILP (Vdisplay_buffer_function)) |
7ab12479 JB |
2093 | return call2 (Vdisplay_buffer_function, buffer, not_this_window); |
2094 | ||
265a9e55 | 2095 | if (NILP (not_this_window) |
7ab12479 | 2096 | && XBUFFER (XWINDOW (selected_window)->buffer) == XBUFFER (buffer)) |
d07f802a | 2097 | return display_buffer_1 (selected_window); |
7ab12479 | 2098 | |
855d8627 RS |
2099 | /* See if the user has specified this buffer should appear |
2100 | in the selected window. */ | |
2101 | if (NILP (not_this_window)) | |
2102 | { | |
4628f7a4 | 2103 | tem = Fsame_window_p (XBUFFER (buffer)->name); |
855d8627 | 2104 | if (!NILP (tem)) |
c63dc4a2 RS |
2105 | { |
2106 | Fswitch_to_buffer (buffer, Qnil); | |
d07f802a | 2107 | return display_buffer_1 (selected_window); |
c63dc4a2 | 2108 | } |
855d8627 RS |
2109 | } |
2110 | ||
e8edb3ae | 2111 | /* If pop_up_frames, |
73dc5198 KH |
2112 | look for a window showing BUFFER on any visible or iconified frame. |
2113 | Otherwise search only the current frame. */ | |
2114 | if (pop_up_frames || last_nonminibuf_frame == 0) | |
2115 | XSETFASTINT (tem, 0); | |
2116 | else | |
73dc5198 KH |
2117 | XSETFRAME (tem, last_nonminibuf_frame); |
2118 | window = Fget_buffer_window (buffer, tem); | |
265a9e55 JB |
2119 | if (!NILP (window) |
2120 | && (NILP (not_this_window) || !EQ (window, selected_window))) | |
f812f9c6 | 2121 | { |
d07f802a | 2122 | return display_buffer_1 (window); |
f812f9c6 | 2123 | } |
7ab12479 | 2124 | |
a90712c2 | 2125 | /* Certain buffer names get special handling. */ |
4628f7a4 | 2126 | if (!NILP (Vspecial_display_function)) |
a90712c2 | 2127 | { |
4628f7a4 EN |
2128 | tem = Fspecial_display_p (XBUFFER (buffer)->name); |
2129 | if (EQ (tem, Qt)) | |
a90712c2 | 2130 | return call1 (Vspecial_display_function, buffer); |
4628f7a4 EN |
2131 | if (CONSP (tem)) |
2132 | return call2 (Vspecial_display_function, buffer, tem); | |
a90712c2 RS |
2133 | } |
2134 | ||
44fa5b1e JB |
2135 | /* If there are no frames open that have more than a minibuffer, |
2136 | we need to create a new frame. */ | |
2137 | if (pop_up_frames || last_nonminibuf_frame == 0) | |
7ab12479 | 2138 | { |
a90712c2 | 2139 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); |
7ab12479 | 2140 | Fset_window_buffer (window, buffer); |
d07f802a | 2141 | return display_buffer_1 (window); |
7ab12479 | 2142 | } |
7ab12479 | 2143 | |
43bad991 | 2144 | if (pop_up_windows |
44fa5b1e | 2145 | || FRAME_MINIBUF_ONLY_P (selected_frame) |
cee67da9 RS |
2146 | /* If the current frame is a special display frame, |
2147 | don't try to reuse its windows. */ | |
2148 | || !NILP (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->dedicated) | |
43bad991 | 2149 | ) |
7ab12479 | 2150 | { |
12cae7c0 KH |
2151 | Lisp_Object frames; |
2152 | ||
37962e60 | 2153 | frames = Qnil; |
44fa5b1e | 2154 | if (FRAME_MINIBUF_ONLY_P (selected_frame)) |
74112613 | 2155 | XSETFRAME (frames, last_nonminibuf_frame); |
7ab12479 JB |
2156 | /* Don't try to create a window if would get an error */ |
2157 | if (split_height_threshold < window_min_height << 1) | |
2158 | split_height_threshold = window_min_height << 1; | |
2159 | ||
cee67da9 RS |
2160 | /* Note that both Fget_largest_window and Fget_lru_window |
2161 | ignore minibuffers and dedicated windows. | |
2162 | This means they can return nil. */ | |
7ab12479 | 2163 | |
cee67da9 RS |
2164 | /* If the frame we would try to split cannot be split, |
2165 | try other frames. */ | |
2166 | if (FRAME_NO_SPLIT_P (NILP (frames) ? selected_frame | |
2167 | : last_nonminibuf_frame)) | |
2168 | { | |
2169 | /* Try visible frames first. */ | |
2170 | window = Fget_largest_window (Qvisible); | |
2171 | /* If that didn't work, try iconified frames. */ | |
2172 | if (NILP (window)) | |
2173 | window = Fget_largest_window (make_number (0)); | |
2174 | if (NILP (window)) | |
2175 | window = Fget_largest_window (Qt); | |
2176 | } | |
2177 | else | |
2178 | window = Fget_largest_window (frames); | |
2179 | ||
92cca945 RS |
2180 | /* If we got a tall enough full-width window that can be split, |
2181 | split it. */ | |
265a9e55 | 2182 | if (!NILP (window) |
92cca945 | 2183 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
7ab12479 | 2184 | && window_height (window) >= split_height_threshold |
111e5992 | 2185 | && WINDOW_FULL_WIDTH_P (XWINDOW (window))) |
7ab12479 JB |
2186 | window = Fsplit_window (window, Qnil, Qnil); |
2187 | else | |
2188 | { | |
1942f68f RS |
2189 | Lisp_Object upper, lower, other; |
2190 | ||
44fa5b1e | 2191 | window = Fget_lru_window (frames); |
92cca945 RS |
2192 | /* If the LRU window is selected, and big enough, |
2193 | and can be split, split it. */ | |
cee67da9 | 2194 | if (!NILP (window) |
92cca945 | 2195 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
cee67da9 RS |
2196 | && (EQ (window, selected_window) |
2197 | || EQ (XWINDOW (window)->parent, Qnil)) | |
7ab12479 JB |
2198 | && window_height (window) >= window_min_height << 1) |
2199 | window = Fsplit_window (window, Qnil, Qnil); | |
cee67da9 RS |
2200 | /* If Fget_lru_window returned nil, try other approaches. */ |
2201 | /* Try visible frames first. */ | |
2202 | if (NILP (window)) | |
2203 | window = Fget_largest_window (Qvisible); | |
2204 | /* If that didn't work, try iconified frames. */ | |
2205 | if (NILP (window)) | |
2206 | window = Fget_largest_window (make_number (0)); | |
2207 | /* Try invisible frames. */ | |
2208 | if (NILP (window)) | |
2209 | window = Fget_largest_window (Qt); | |
2210 | /* As a last resort, make a new frame. */ | |
2211 | if (NILP (window)) | |
2212 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); | |
1942f68f RS |
2213 | /* If window appears above or below another, |
2214 | even out their heights. */ | |
cac66e4f | 2215 | other = upper = lower = Qnil; |
1942f68f RS |
2216 | if (!NILP (XWINDOW (window)->prev)) |
2217 | other = upper = XWINDOW (window)->prev, lower = window; | |
2218 | if (!NILP (XWINDOW (window)->next)) | |
2219 | other = lower = XWINDOW (window)->next, upper = window; | |
2220 | if (!NILP (other) | |
2221 | /* Check that OTHER and WINDOW are vertically arrayed. */ | |
2222 | && XWINDOW (other)->top != XWINDOW (window)->top | |
2223 | && XWINDOW (other)->height > XWINDOW (window)->height) | |
2224 | { | |
2225 | int total = XWINDOW (other)->height + XWINDOW (window)->height; | |
8d77c0c8 KH |
2226 | Lisp_Object old_selected_window; |
2227 | old_selected_window = selected_window; | |
1942f68f | 2228 | |
8d77c0c8 | 2229 | selected_window = upper; |
1942f68f RS |
2230 | change_window_height (total / 2 - XWINDOW (upper)->height, 0); |
2231 | selected_window = old_selected_window; | |
2232 | } | |
7ab12479 JB |
2233 | } |
2234 | } | |
2235 | else | |
2236 | window = Fget_lru_window (Qnil); | |
2237 | ||
2238 | Fset_window_buffer (window, buffer); | |
d07f802a | 2239 | return display_buffer_1 (window); |
7ab12479 JB |
2240 | } |
2241 | ||
2242 | void | |
2243 | temp_output_buffer_show (buf) | |
2244 | register Lisp_Object buf; | |
2245 | { | |
2246 | register struct buffer *old = current_buffer; | |
2247 | register Lisp_Object window; | |
2248 | register struct window *w; | |
2249 | ||
2250 | Fset_buffer (buf); | |
c6367666 | 2251 | BUF_SAVE_MODIFF (XBUFFER (buf)) = MODIFF; |
7ab12479 JB |
2252 | BEGV = BEG; |
2253 | ZV = Z; | |
2254 | SET_PT (BEG); | |
1479ef51 | 2255 | XBUFFER (buf)->clip_changed = 1; |
7ab12479 JB |
2256 | set_buffer_internal (old); |
2257 | ||
2258 | if (!EQ (Vtemp_buffer_show_function, Qnil)) | |
2259 | call1 (Vtemp_buffer_show_function, buf); | |
2260 | else | |
2261 | { | |
2262 | window = Fdisplay_buffer (buf, Qnil); | |
2263 | ||
44fa5b1e JB |
2264 | if (XFRAME (XWINDOW (window)->frame) != selected_frame) |
2265 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
7ab12479 JB |
2266 | Vminibuf_scroll_window = window; |
2267 | w = XWINDOW (window); | |
d834a2e9 | 2268 | XSETFASTINT (w->hscroll, 0); |
7ab12479 JB |
2269 | set_marker_restricted (w->start, make_number (1), buf); |
2270 | set_marker_restricted (w->pointm, make_number (1), buf); | |
a58ec57d | 2271 | |
37962e60 | 2272 | /* Run temp-buffer-show-hook, with the chosen window selected. */ |
f52cca03 | 2273 | if (!NILP (Vrun_hooks)) |
2cccc823 | 2274 | { |
f52cca03 RS |
2275 | Lisp_Object tem; |
2276 | tem = Fboundp (Qtemp_buffer_show_hook); | |
2cccc823 RS |
2277 | if (!NILP (tem)) |
2278 | { | |
f52cca03 RS |
2279 | tem = Fsymbol_value (Qtemp_buffer_show_hook); |
2280 | if (!NILP (tem)) | |
2281 | { | |
2282 | int count = specpdl_ptr - specpdl; | |
2cccc823 | 2283 | |
f52cca03 RS |
2284 | /* Select the window that was chosen, for running the hook. */ |
2285 | record_unwind_protect (Fset_window_configuration, | |
2286 | Fcurrent_window_configuration (Qnil)); | |
2cccc823 | 2287 | |
f52cca03 RS |
2288 | Fselect_window (window); |
2289 | call1 (Vrun_hooks, Qtemp_buffer_show_hook); | |
2290 | unbind_to (count, Qnil); | |
2291 | } | |
2cccc823 RS |
2292 | } |
2293 | } | |
2294 | } | |
7ab12479 JB |
2295 | } |
2296 | \f | |
2297 | static | |
2298 | make_dummy_parent (window) | |
2299 | Lisp_Object window; | |
2300 | { | |
cffec418 | 2301 | Lisp_Object new; |
7ab12479 | 2302 | register struct window *o, *p; |
cffec418 KH |
2303 | register struct Lisp_Vector *vec; |
2304 | int i; | |
7ab12479 | 2305 | |
cffec418 KH |
2306 | o = XWINDOW (window); |
2307 | vec = allocate_vectorlike ((EMACS_INT)VECSIZE (struct window)); | |
2308 | for (i = 0; i < VECSIZE (struct window); ++i) | |
2309 | vec->contents[i] = ((struct Lisp_Vector *)o)->contents[i]; | |
2310 | vec->size = VECSIZE (struct window); | |
2311 | p = (struct window *)vec; | |
2312 | XSETWINDOW (new, p); | |
7ab12479 | 2313 | |
d834a2e9 | 2314 | XSETFASTINT (p->sequence_number, ++sequence_number); |
7ab12479 JB |
2315 | |
2316 | /* Put new into window structure in place of window */ | |
2317 | replace_window (window, new); | |
2318 | ||
2319 | o->next = Qnil; | |
2320 | o->prev = Qnil; | |
2321 | o->vchild = Qnil; | |
2322 | o->hchild = Qnil; | |
2323 | o->parent = new; | |
2324 | ||
2325 | p->start = Qnil; | |
2326 | p->pointm = Qnil; | |
2327 | p->buffer = Qnil; | |
2328 | } | |
2329 | ||
2330 | DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "", | |
2331 | "Split WINDOW, putting SIZE lines in the first of the pair.\n\ | |
2332 | WINDOW defaults to selected one and SIZE to half its size.\n\ | |
77ae0fe3 | 2333 | If optional third arg HORFLAG is non-nil, split side by side\n\ |
7ab12479 | 2334 | and put SIZE columns in the first of the pair.") |
77ae0fe3 KH |
2335 | (window, size, horflag) |
2336 | Lisp_Object window, size, horflag; | |
7ab12479 JB |
2337 | { |
2338 | register Lisp_Object new; | |
2339 | register struct window *o, *p; | |
c0807608 | 2340 | FRAME_PTR fo; |
77ae0fe3 | 2341 | register int size_int; |
7ab12479 | 2342 | |
265a9e55 | 2343 | if (NILP (window)) |
7ab12479 JB |
2344 | window = selected_window; |
2345 | else | |
605be8af | 2346 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2347 | |
2348 | o = XWINDOW (window); | |
c0807608 | 2349 | fo = XFRAME (WINDOW_FRAME (o)); |
7ab12479 | 2350 | |
77ae0fe3 | 2351 | if (NILP (size)) |
7ab12479 | 2352 | { |
265a9e55 | 2353 | if (!NILP (horflag)) |
c0807608 KH |
2354 | /* Calculate the size of the left-hand window, by dividing |
2355 | the usable space in columns by two. */ | |
a59fed7e | 2356 | size_int = XFASTINT (o->width) >> 1; |
7ab12479 | 2357 | else |
77ae0fe3 | 2358 | size_int = XFASTINT (o->height) >> 1; |
7ab12479 JB |
2359 | } |
2360 | else | |
2361 | { | |
77ae0fe3 KH |
2362 | CHECK_NUMBER (size, 1); |
2363 | size_int = XINT (size); | |
7ab12479 JB |
2364 | } |
2365 | ||
2366 | if (MINI_WINDOW_P (o)) | |
2367 | error ("Attempt to split minibuffer window"); | |
c0807608 | 2368 | else if (FRAME_NO_SPLIT_P (fo)) |
44fa5b1e | 2369 | error ("Attempt to split unsplittable frame"); |
7ab12479 | 2370 | |
a481b3ea | 2371 | check_min_window_sizes (); |
7ab12479 | 2372 | |
265a9e55 | 2373 | if (NILP (horflag)) |
7ab12479 | 2374 | { |
77ae0fe3 KH |
2375 | if (size_int < window_min_height) |
2376 | error ("Window height %d too small (after splitting)", size_int); | |
2377 | if (size_int + window_min_height > XFASTINT (o->height)) | |
37962e60 | 2378 | error ("Window height %d too small (after splitting)", |
77ae0fe3 | 2379 | XFASTINT (o->height) - size_int); |
265a9e55 JB |
2380 | if (NILP (o->parent) |
2381 | || NILP (XWINDOW (o->parent)->vchild)) | |
7ab12479 JB |
2382 | { |
2383 | make_dummy_parent (window); | |
2384 | new = o->parent; | |
2385 | XWINDOW (new)->vchild = window; | |
2386 | } | |
2387 | } | |
2388 | else | |
2389 | { | |
77ae0fe3 KH |
2390 | if (size_int < window_min_width) |
2391 | error ("Window width %d too small (after splitting)", size_int); | |
a59fed7e RS |
2392 | |
2393 | if (size_int + window_min_width > XFASTINT (o->width)) | |
37962e60 | 2394 | error ("Window width %d too small (after splitting)", |
a59fed7e | 2395 | XFASTINT (o->width) - size_int); |
265a9e55 JB |
2396 | if (NILP (o->parent) |
2397 | || NILP (XWINDOW (o->parent)->hchild)) | |
7ab12479 JB |
2398 | { |
2399 | make_dummy_parent (window); | |
2400 | new = o->parent; | |
2401 | XWINDOW (new)->hchild = window; | |
2402 | } | |
2403 | } | |
2404 | ||
2405 | /* Now we know that window's parent is a vertical combination | |
2406 | if we are dividing vertically, or a horizontal combination | |
2407 | if we are making side-by-side windows */ | |
2408 | ||
2409 | windows_or_buffers_changed++; | |
c0807608 | 2410 | FRAME_WINDOW_SIZES_CHANGED (fo) = 1; |
7ab12479 JB |
2411 | new = make_window (); |
2412 | p = XWINDOW (new); | |
2413 | ||
44fa5b1e | 2414 | p->frame = o->frame; |
7ab12479 | 2415 | p->next = o->next; |
265a9e55 | 2416 | if (!NILP (p->next)) |
7ab12479 JB |
2417 | XWINDOW (p->next)->prev = new; |
2418 | p->prev = window; | |
2419 | o->next = new; | |
2420 | p->parent = o->parent; | |
2421 | p->buffer = Qt; | |
2422 | ||
2423 | Fset_window_buffer (new, o->buffer); | |
2424 | ||
44fa5b1e | 2425 | /* Apportion the available frame space among the two new windows */ |
7ab12479 | 2426 | |
265a9e55 | 2427 | if (!NILP (horflag)) |
7ab12479 JB |
2428 | { |
2429 | p->height = o->height; | |
2430 | p->top = o->top; | |
a59fed7e | 2431 | XSETFASTINT (p->width, XFASTINT (o->width) - size_int); |
77ae0fe3 KH |
2432 | XSETFASTINT (o->width, size_int); |
2433 | XSETFASTINT (p->left, XFASTINT (o->left) + size_int); | |
7ab12479 JB |
2434 | } |
2435 | else | |
2436 | { | |
2437 | p->left = o->left; | |
2438 | p->width = o->width; | |
77ae0fe3 KH |
2439 | XSETFASTINT (p->height, XFASTINT (o->height) - size_int); |
2440 | XSETFASTINT (o->height, size_int); | |
2441 | XSETFASTINT (p->top, XFASTINT (o->top) + size_int); | |
7ab12479 JB |
2442 | } |
2443 | ||
2444 | return new; | |
2445 | } | |
2446 | \f | |
2447 | DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p", | |
2448 | "Make current window ARG lines bigger.\n\ | |
2449 | From program, optional second arg non-nil means grow sideways ARG columns.") | |
413430c5 EN |
2450 | (arg, side) |
2451 | register Lisp_Object arg, side; | |
7ab12479 | 2452 | { |
413430c5 EN |
2453 | CHECK_NUMBER (arg, 0); |
2454 | change_window_height (XINT (arg), !NILP (side)); | |
7ab12479 JB |
2455 | return Qnil; |
2456 | } | |
2457 | ||
2458 | DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p", | |
2459 | "Make current window ARG lines smaller.\n\ | |
413430c5 EN |
2460 | From program, optional second arg non-nil means shrink sideways arg columns.") |
2461 | (arg, side) | |
2462 | register Lisp_Object arg, side; | |
7ab12479 | 2463 | { |
413430c5 EN |
2464 | CHECK_NUMBER (arg, 0); |
2465 | change_window_height (-XINT (arg), !NILP (side)); | |
7ab12479 JB |
2466 | return Qnil; |
2467 | } | |
2468 | ||
2469 | int | |
2470 | window_height (window) | |
2471 | Lisp_Object window; | |
2472 | { | |
2473 | register struct window *p = XWINDOW (window); | |
2474 | return XFASTINT (p->height); | |
2475 | } | |
2476 | ||
2477 | int | |
2478 | window_width (window) | |
2479 | Lisp_Object window; | |
2480 | { | |
2481 | register struct window *p = XWINDOW (window); | |
2482 | return XFASTINT (p->width); | |
2483 | } | |
2484 | ||
05c2896a JB |
2485 | #define MINSIZE(w) \ |
2486 | (widthflag \ | |
2487 | ? window_min_width \ | |
2488 | : (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)) | |
7ab12479 JB |
2489 | |
2490 | #define CURBEG(w) \ | |
05c2896a | 2491 | *(widthflag ? (int *) &(XWINDOW (w)->left) : (int *) &(XWINDOW (w)->top)) |
7ab12479 JB |
2492 | |
2493 | #define CURSIZE(w) \ | |
05c2896a | 2494 | *(widthflag ? (int *) &(XWINDOW (w)->width) : (int *) &(XWINDOW (w)->height)) |
7ab12479 JB |
2495 | |
2496 | /* Unlike set_window_height, this function | |
2497 | also changes the heights of the siblings so as to | |
2498 | keep everything consistent. */ | |
2499 | ||
2500 | change_window_height (delta, widthflag) | |
2501 | register int delta; | |
2502 | int widthflag; | |
2503 | { | |
2504 | register Lisp_Object parent; | |
2505 | Lisp_Object window; | |
2506 | register struct window *p; | |
2507 | int *sizep; | |
2508 | int (*sizefun) () = widthflag ? window_width : window_height; | |
2509 | register int (*setsizefun) () = (widthflag | |
2510 | ? set_window_width | |
2511 | : set_window_height); | |
db98a733 RS |
2512 | int maximum; |
2513 | Lisp_Object next, prev; | |
7ab12479 | 2514 | |
a481b3ea | 2515 | check_min_window_sizes (); |
7ab12479 JB |
2516 | |
2517 | window = selected_window; | |
2518 | while (1) | |
2519 | { | |
2520 | p = XWINDOW (window); | |
2521 | parent = p->parent; | |
265a9e55 | 2522 | if (NILP (parent)) |
7ab12479 JB |
2523 | { |
2524 | if (widthflag) | |
2525 | error ("No other window to side of this one"); | |
2526 | break; | |
2527 | } | |
265a9e55 JB |
2528 | if (widthflag ? !NILP (XWINDOW (parent)->hchild) |
2529 | : !NILP (XWINDOW (parent)->vchild)) | |
7ab12479 JB |
2530 | break; |
2531 | window = parent; | |
2532 | } | |
2533 | ||
05c2896a | 2534 | sizep = &CURSIZE (window); |
7ab12479 | 2535 | |
7ab12479 JB |
2536 | { |
2537 | register int maxdelta; | |
7ab12479 | 2538 | |
265a9e55 JB |
2539 | maxdelta = (!NILP (parent) ? (*sizefun) (parent) - *sizep |
2540 | : !NILP (p->next) ? (*sizefun) (p->next) - MINSIZE (p->next) | |
2541 | : !NILP (p->prev) ? (*sizefun) (p->prev) - MINSIZE (p->prev) | |
44fa5b1e JB |
2542 | /* This is a frame with only one window, a minibuffer-only |
2543 | or a minibufferless frame. */ | |
d5783c40 | 2544 | : (delta = 0)); |
7ab12479 JB |
2545 | |
2546 | if (delta > maxdelta) | |
2547 | /* This case traps trying to make the minibuffer | |
44fa5b1e JB |
2548 | the full frame, or make the only window aside from the |
2549 | minibuffer the full frame. */ | |
7ab12479 | 2550 | delta = maxdelta; |
6b54027b | 2551 | } |
d5783c40 | 2552 | |
6b54027b RS |
2553 | if (*sizep + delta < MINSIZE (window)) |
2554 | { | |
2555 | Fdelete_window (window); | |
d5783c40 | 2556 | return; |
6b54027b RS |
2557 | } |
2558 | ||
2559 | if (delta == 0) | |
2560 | return; | |
7ab12479 | 2561 | |
db98a733 RS |
2562 | /* Find the total we can get from other siblings. */ |
2563 | maximum = 0; | |
2564 | for (next = p->next; ! NILP (next); next = XWINDOW (next)->next) | |
2565 | maximum += (*sizefun) (next) - MINSIZE (next); | |
2566 | for (prev = p->prev; ! NILP (prev); prev = XWINDOW (prev)->prev) | |
2567 | maximum += (*sizefun) (prev) - MINSIZE (prev); | |
2568 | ||
2569 | /* If we can get it all from them, do so. */ | |
2570 | if (delta < maximum) | |
7ab12479 | 2571 | { |
db98a733 RS |
2572 | Lisp_Object first_unaffected; |
2573 | Lisp_Object first_affected; | |
2574 | ||
2575 | next = p->next; | |
2576 | prev = p->prev; | |
2577 | first_affected = window; | |
2578 | /* Look at one sibling at a time, | |
2579 | moving away from this window in both directions alternately, | |
2580 | and take as much as we can get without deleting that sibling. */ | |
dc91fb5d | 2581 | while (delta != 0) |
db98a733 RS |
2582 | { |
2583 | if (delta == 0) | |
2584 | break; | |
2585 | if (! NILP (next)) | |
2586 | { | |
2587 | int this_one = (*sizefun) (next) - MINSIZE (next); | |
2588 | if (this_one > delta) | |
2589 | this_one = delta; | |
2590 | ||
2591 | (*setsizefun) (next, (*sizefun) (next) - this_one, 0); | |
2592 | (*setsizefun) (window, *sizep + this_one, 0); | |
2593 | ||
2594 | delta -= this_one; | |
2595 | next = XWINDOW (next)->next; | |
2596 | } | |
2597 | if (delta == 0) | |
2598 | break; | |
2599 | if (! NILP (prev)) | |
2600 | { | |
2601 | int this_one = (*sizefun) (prev) - MINSIZE (prev); | |
2602 | if (this_one > delta) | |
2603 | this_one = delta; | |
2604 | ||
2605 | first_affected = prev; | |
2606 | ||
2607 | (*setsizefun) (prev, (*sizefun) (prev) - this_one, 0); | |
2608 | (*setsizefun) (window, *sizep + this_one, 0); | |
2609 | ||
2610 | delta -= this_one; | |
2611 | prev = XWINDOW (prev)->prev; | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | /* Now recalculate the edge positions of all the windows affected, | |
2616 | based on the new sizes. */ | |
2617 | first_unaffected = next; | |
2618 | prev = first_affected; | |
2619 | for (next = XWINDOW (prev)->next; ! EQ (next, first_unaffected); | |
2620 | prev = next, next = XWINDOW (next)->next) | |
2621 | { | |
2622 | CURBEG (next) = CURBEG (prev) + (*sizefun) (prev); | |
2623 | /* This does not change size of NEXT, | |
2624 | but it propagates the new top edge to its children */ | |
2625 | (*setsizefun) (next, (*sizefun) (next), 0); | |
2626 | } | |
7ab12479 JB |
2627 | } |
2628 | else | |
2629 | { | |
2630 | register int delta1; | |
2631 | register int opht = (*sizefun) (parent); | |
2632 | ||
2633 | /* If trying to grow this window to or beyond size of the parent, | |
2634 | make delta1 so big that, on shrinking back down, | |
2635 | all the siblings end up with less than one line and are deleted. */ | |
2636 | if (opht <= *sizep + delta) | |
2637 | delta1 = opht * opht * 2; | |
2638 | /* Otherwise, make delta1 just right so that if we add delta1 | |
2639 | lines to this window and to the parent, and then shrink | |
2640 | the parent back to its original size, the new proportional | |
2641 | size of this window will increase by delta. */ | |
2642 | else | |
2643 | delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
2644 | ||
2645 | /* Add delta1 lines or columns to this window, and to the parent, | |
2646 | keeping things consistent while not affecting siblings. */ | |
05c2896a | 2647 | CURSIZE (parent) = opht + delta1; |
7ab12479 JB |
2648 | (*setsizefun) (window, *sizep + delta1, 0); |
2649 | ||
2650 | /* Squeeze out delta1 lines or columns from our parent, | |
2651 | shriking this window and siblings proportionately. | |
2652 | This brings parent back to correct size. | |
2653 | Delta1 was calculated so this makes this window the desired size, | |
2654 | taking it all out of the siblings. */ | |
2655 | (*setsizefun) (parent, opht, 0); | |
2656 | } | |
2657 | ||
d834a2e9 | 2658 | XSETFASTINT (p->last_modified, 0); |
3cd21523 | 2659 | XSETFASTINT (p->last_overlay_modified, 0); |
7ab12479 JB |
2660 | } |
2661 | #undef MINSIZE | |
2662 | #undef CURBEG | |
2663 | #undef CURSIZE | |
2664 | ||
2665 | \f | |
2666 | /* Return number of lines of text (not counting mode line) in W. */ | |
2667 | ||
2668 | int | |
2669 | window_internal_height (w) | |
2670 | struct window *w; | |
2671 | { | |
2672 | int ht = XFASTINT (w->height); | |
2673 | ||
2674 | if (MINI_WINDOW_P (w)) | |
2675 | return ht; | |
2676 | ||
265a9e55 JB |
2677 | if (!NILP (w->parent) || !NILP (w->vchild) || !NILP (w->hchild) |
2678 | || !NILP (w->next) || !NILP (w->prev) | |
44fa5b1e | 2679 | || FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (w)))) |
7ab12479 JB |
2680 | return ht - 1; |
2681 | ||
2682 | return ht; | |
2683 | } | |
2684 | ||
535e0b8e JB |
2685 | |
2686 | /* Return the number of columns in W. | |
a3c87d4e | 2687 | Don't count columns occupied by scroll bars or the vertical bar |
535e0b8e JB |
2688 | separating W from the sibling to its right. */ |
2689 | int | |
2690 | window_internal_width (w) | |
2691 | struct window *w; | |
2692 | { | |
2693 | FRAME_PTR f = XFRAME (WINDOW_FRAME (w)); | |
535e0b8e JB |
2694 | int width = XINT (w->width); |
2695 | ||
a3c87d4e JB |
2696 | /* Scroll bars occupy a few columns. */ |
2697 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) | |
ca0d0bb9 | 2698 | return width - FRAME_SCROLL_BAR_COLS (f); |
535e0b8e JB |
2699 | |
2700 | /* The column of `|' characters separating side-by-side windows | |
2701 | occupies one column only. */ | |
111e5992 RS |
2702 | if (!WINDOW_RIGHTMOST_P (w) && !WINDOW_FULL_WIDTH_P (w)) |
2703 | return width - 1; | |
2704 | ||
2705 | return width; | |
535e0b8e JB |
2706 | } |
2707 | ||
2708 | ||
101d1605 | 2709 | /* Scroll contents of window WINDOW up N lines. |
9317a85d | 2710 | If WHOLE is nonzero, it means scroll N screenfuls instead. */ |
7ab12479 | 2711 | |
101d1605 RS |
2712 | static void |
2713 | window_scroll (window, n, whole, noerror) | |
7ab12479 JB |
2714 | Lisp_Object window; |
2715 | int n; | |
101d1605 | 2716 | int whole; |
f8026fd8 | 2717 | int noerror; |
7ab12479 JB |
2718 | { |
2719 | register struct window *w = XWINDOW (window); | |
5ce7b543 | 2720 | register int opoint = PT; |
7ab12479 JB |
2721 | register int pos; |
2722 | register int ht = window_internal_height (w); | |
2723 | register Lisp_Object tem; | |
2724 | int lose; | |
2725 | Lisp_Object bolp, nmoved; | |
345d45b2 | 2726 | int startpos; |
101d1605 RS |
2727 | struct position posit; |
2728 | int original_vpos; | |
2729 | ||
2730 | startpos = marker_position (w->start); | |
2731 | ||
2732 | posit = *compute_motion (startpos, 0, 0, 0, | |
2733 | PT, ht, 0, | |
2734 | window_internal_width (w), XINT (w->hscroll), | |
2735 | 0, w); | |
2736 | original_vpos = posit.vpos; | |
0a1f771a | 2737 | |
d834a2e9 | 2738 | XSETFASTINT (tem, PT); |
7ab12479 JB |
2739 | tem = Fpos_visible_in_window_p (tem, window); |
2740 | ||
265a9e55 | 2741 | if (NILP (tem)) |
7ab12479 | 2742 | { |
cd2be1dd | 2743 | Fvertical_motion (make_number (- (ht / 2)), window); |
345d45b2 | 2744 | startpos = PT; |
7ab12479 JB |
2745 | } |
2746 | ||
345d45b2 | 2747 | SET_PT (startpos); |
5ce7b543 | 2748 | lose = n < 0 && PT == BEGV; |
540b6aa0 | 2749 | Fvertical_motion (make_number (n), window); |
5ce7b543 | 2750 | pos = PT; |
7ab12479 JB |
2751 | bolp = Fbolp (); |
2752 | SET_PT (opoint); | |
2753 | ||
2754 | if (lose) | |
f8026fd8 JB |
2755 | { |
2756 | if (noerror) | |
2757 | return; | |
2758 | else | |
2759 | Fsignal (Qbeginning_of_buffer, Qnil); | |
2760 | } | |
7ab12479 JB |
2761 | |
2762 | if (pos < ZV) | |
7ab12479 | 2763 | { |
0c7da84e RS |
2764 | int this_scroll_margin = scroll_margin; |
2765 | ||
2766 | /* Don't use a scroll margin that is negative or too large. */ | |
2767 | if (this_scroll_margin < 0) | |
2768 | this_scroll_margin = 0; | |
2769 | ||
2770 | if (XINT (w->height) < 4 * scroll_margin) | |
2771 | this_scroll_margin = XINT (w->height) / 4; | |
2772 | ||
7ab12479 JB |
2773 | set_marker_restricted (w->start, make_number (pos), w->buffer); |
2774 | w->start_at_line_beg = bolp; | |
2775 | w->update_mode_line = Qt; | |
d834a2e9 | 2776 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 2777 | XSETFASTINT (w->last_overlay_modified, 0); |
345d45b2 RS |
2778 | /* Set force_start so that redisplay_window will run |
2779 | the window-scroll-functions. */ | |
2780 | w->force_start = Qt; | |
0c7da84e | 2781 | |
9317a85d | 2782 | if (whole && scroll_preserve_screen_position) |
0c7da84e RS |
2783 | { |
2784 | SET_PT (pos); | |
101d1605 | 2785 | Fvertical_motion (make_number (original_vpos), window); |
0c7da84e | 2786 | } |
101d1605 RS |
2787 | /* If we scrolled forward, put point enough lines down |
2788 | that it is outside the scroll margin. */ | |
2789 | else if (n > 0) | |
0c7da84e | 2790 | { |
101d1605 RS |
2791 | int top_margin; |
2792 | ||
2793 | if (this_scroll_margin > 0) | |
2794 | { | |
2795 | SET_PT (pos); | |
2796 | Fvertical_motion (make_number (this_scroll_margin), window); | |
2797 | top_margin = PT; | |
2798 | } | |
2799 | else | |
2800 | top_margin = pos; | |
2801 | ||
2802 | if (top_margin <= opoint) | |
2803 | SET_PT (opoint); | |
9317a85d | 2804 | else if (scroll_preserve_screen_position) |
101d1605 RS |
2805 | { |
2806 | SET_PT (pos); | |
2807 | Fvertical_motion (make_number (original_vpos), window); | |
2808 | } | |
9317a85d RS |
2809 | else |
2810 | SET_PT (pos); | |
0c7da84e | 2811 | } |
101d1605 | 2812 | else if (n < 0) |
7ab12479 | 2813 | { |
101d1605 RS |
2814 | int bottom_margin; |
2815 | ||
0c7da84e RS |
2816 | /* If we scrolled backward, put point near the end of the window |
2817 | but not within the scroll margin. */ | |
7ab12479 | 2818 | SET_PT (pos); |
0c7da84e | 2819 | tem = Fvertical_motion (make_number (ht - this_scroll_margin), window); |
101d1605 RS |
2820 | if (XFASTINT (tem) == ht - this_scroll_margin) |
2821 | bottom_margin = PT; | |
2822 | else | |
2823 | bottom_margin = PT + 1; | |
2824 | ||
2825 | if (bottom_margin > opoint) | |
7ab12479 JB |
2826 | SET_PT (opoint); |
2827 | else | |
101d1605 | 2828 | { |
9317a85d RS |
2829 | if (scroll_preserve_screen_position) |
2830 | { | |
2831 | SET_PT (pos); | |
2832 | Fvertical_motion (make_number (original_vpos), window); | |
2833 | } | |
2834 | else | |
2835 | Fvertical_motion (make_number (-1), window); | |
101d1605 | 2836 | } |
7ab12479 JB |
2837 | } |
2838 | } | |
2839 | else | |
f8026fd8 JB |
2840 | { |
2841 | if (noerror) | |
2842 | return; | |
2843 | else | |
2844 | Fsignal (Qend_of_buffer, Qnil); | |
2845 | } | |
7ab12479 JB |
2846 | } |
2847 | \f | |
2848 | /* This is the guts of Fscroll_up and Fscroll_down. */ | |
2849 | ||
2850 | static void | |
2851 | scroll_command (n, direction) | |
2852 | register Lisp_Object n; | |
2853 | int direction; | |
2854 | { | |
2855 | register int defalt; | |
2856 | int count = specpdl_ptr - specpdl; | |
2857 | ||
95605e15 JB |
2858 | /* If selected window's buffer isn't current, make it current for the moment. |
2859 | But don't screw up if window_scroll gets an error. */ | |
7ab12479 | 2860 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
95605e15 JB |
2861 | { |
2862 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2863 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
2864 | } | |
7ab12479 JB |
2865 | |
2866 | defalt = (window_internal_height (XWINDOW (selected_window)) | |
2867 | - next_screen_context_lines); | |
2868 | defalt = direction * (defalt < 1 ? 1 : defalt); | |
2869 | ||
265a9e55 | 2870 | if (NILP (n)) |
101d1605 | 2871 | window_scroll (selected_window, defalt, 1, 0); |
7ab12479 | 2872 | else if (EQ (n, Qminus)) |
101d1605 | 2873 | window_scroll (selected_window, - defalt, 1, 0); |
7ab12479 JB |
2874 | else |
2875 | { | |
2876 | n = Fprefix_numeric_value (n); | |
101d1605 | 2877 | window_scroll (selected_window, XINT (n) * direction, 0, 0); |
7ab12479 | 2878 | } |
95605e15 JB |
2879 | |
2880 | unbind_to (count, Qnil); | |
7ab12479 JB |
2881 | } |
2882 | ||
2883 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "P", | |
2884 | "Scroll text of current window upward ARG lines; or near full screen if no ARG.\n\ | |
2885 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
279e0e0c | 2886 | Negative ARG means scroll downward.\n\ |
7ab12479 | 2887 | When calling from a program, supply a number as argument or nil.") |
413430c5 EN |
2888 | (arg) |
2889 | Lisp_Object arg; | |
7ab12479 | 2890 | { |
413430c5 | 2891 | scroll_command (arg, 1); |
7ab12479 JB |
2892 | return Qnil; |
2893 | } | |
2894 | ||
2895 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "P", | |
2896 | "Scroll text of current window downward ARG lines; or near full screen if no ARG.\n\ | |
2897 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
279e0e0c | 2898 | Negative ARG means scroll upward.\n\ |
7ab12479 | 2899 | When calling from a program, supply a number as argument or nil.") |
413430c5 EN |
2900 | (arg) |
2901 | Lisp_Object arg; | |
7ab12479 | 2902 | { |
413430c5 | 2903 | scroll_command (arg, -1); |
7ab12479 JB |
2904 | return Qnil; |
2905 | } | |
ccd0664b RS |
2906 | \f |
2907 | DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0, | |
2908 | "Return the other window for \"other window scroll\" commands.\n\ | |
77b24de6 | 2909 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ |
ccd0664b RS |
2910 | specifies the window.\n\ |
2911 | If `other-window-scroll-buffer' is non-nil, a window\n\ | |
2912 | showing that buffer is used.") | |
eb16ec06 | 2913 | () |
7ab12479 | 2914 | { |
ccd0664b | 2915 | Lisp_Object window; |
7ab12479 JB |
2916 | |
2917 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 2918 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
2919 | window = Vminibuf_scroll_window; |
2920 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 2921 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
2922 | { |
2923 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 2924 | if (NILP (window)) |
7ab12479 JB |
2925 | window = Fdisplay_buffer (Vother_window_scroll_buffer, Qt); |
2926 | } | |
2927 | else | |
dbc4e1c1 JB |
2928 | { |
2929 | /* Nothing specified; look for a neighboring window on the same | |
2930 | frame. */ | |
2931 | window = Fnext_window (selected_window, Qnil, Qnil); | |
2932 | ||
2933 | if (EQ (window, selected_window)) | |
2934 | /* That didn't get us anywhere; look for a window on another | |
2935 | visible frame. */ | |
2936 | do | |
2937 | window = Fnext_window (window, Qnil, Qt); | |
2938 | while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
2939 | && ! EQ (window, selected_window)); | |
2940 | } | |
2941 | ||
605be8af | 2942 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2943 | |
2944 | if (EQ (window, selected_window)) | |
2945 | error ("There is no other window"); | |
2946 | ||
ccd0664b RS |
2947 | return window; |
2948 | } | |
2949 | ||
2950 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
2951 | "Scroll next window upward ARG lines; or near full screen if no ARG.\n\ | |
2952 | The next window is the one below the current one; or the one at the top\n\ | |
2953 | if the current one is at the bottom. Negative ARG means scroll downward.\n\ | |
2954 | When calling from a program, supply a number as argument or nil.\n\ | |
2955 | \n\ | |
2956 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ | |
2957 | specifies the window to scroll.\n\ | |
2958 | If `other-window-scroll-buffer' is non-nil, scroll the window\n\ | |
2959 | showing that buffer, popping the buffer up if necessary.") | |
413430c5 EN |
2960 | (arg) |
2961 | register Lisp_Object arg; | |
ccd0664b RS |
2962 | { |
2963 | register Lisp_Object window; | |
2f787aa3 | 2964 | register int defalt; |
ccd0664b RS |
2965 | register struct window *w; |
2966 | register int count = specpdl_ptr - specpdl; | |
2967 | ||
2968 | window = Fother_window_for_scrolling (); | |
2969 | ||
7ab12479 | 2970 | w = XWINDOW (window); |
2f787aa3 KH |
2971 | defalt = window_internal_height (w) - next_screen_context_lines; |
2972 | if (defalt < 1) defalt = 1; | |
7ab12479 JB |
2973 | |
2974 | /* Don't screw up if window_scroll gets an error. */ | |
2975 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2976 | ||
2977 | Fset_buffer (w->buffer); | |
2978 | SET_PT (marker_position (w->pointm)); | |
2979 | ||
413430c5 | 2980 | if (NILP (arg)) |
101d1605 | 2981 | window_scroll (window, defalt, 1, 1); |
413430c5 | 2982 | else if (EQ (arg, Qminus)) |
101d1605 | 2983 | window_scroll (window, -defalt, 1, 1); |
7ab12479 JB |
2984 | else |
2985 | { | |
413430c5 EN |
2986 | if (CONSP (arg)) |
2987 | arg = Fcar (arg); | |
2988 | CHECK_NUMBER (arg, 0); | |
101d1605 | 2989 | window_scroll (window, XINT (arg), 0, 1); |
7ab12479 JB |
2990 | } |
2991 | ||
5ce7b543 | 2992 | Fset_marker (w->pointm, make_number (PT), Qnil); |
f4e7b2c2 | 2993 | unbind_to (count, Qnil); |
7ab12479 JB |
2994 | |
2995 | return Qnil; | |
2996 | } | |
2997 | \f | |
644b477c | 2998 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 1, "P", |
7ab12479 JB |
2999 | "Scroll selected window display ARG columns left.\n\ |
3000 | Default for ARG is window width minus 2.") | |
3001 | (arg) | |
3002 | register Lisp_Object arg; | |
3003 | { | |
3004 | ||
265a9e55 | 3005 | if (NILP (arg)) |
d834a2e9 | 3006 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
3007 | else |
3008 | arg = Fprefix_numeric_value (arg); | |
3009 | ||
3010 | return | |
3011 | Fset_window_hscroll (selected_window, | |
3012 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
3013 | + XINT (arg))); | |
3014 | } | |
3015 | ||
644b477c | 3016 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 1, "P", |
7ab12479 JB |
3017 | "Scroll selected window display ARG columns right.\n\ |
3018 | Default for ARG is window width minus 2.") | |
3019 | (arg) | |
3020 | register Lisp_Object arg; | |
3021 | { | |
265a9e55 | 3022 | if (NILP (arg)) |
d834a2e9 | 3023 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
3024 | else |
3025 | arg = Fprefix_numeric_value (arg); | |
3026 | ||
3027 | return | |
3028 | Fset_window_hscroll (selected_window, | |
3029 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
3030 | - XINT (arg))); | |
3031 | } | |
3032 | ||
3033 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", | |
44fa5b1e | 3034 | "Center point in window and redisplay frame. With ARG, put point on line ARG.\n\ |
7ab12479 | 3035 | The desired position of point is always relative to the current window.\n\ |
44fa5b1e | 3036 | Just C-u as prefix means put point in the center of the window.\n\ |
413430c5 | 3037 | If ARG is omitted or nil, erases the entire frame and then\n\ |
44fa5b1e | 3038 | redraws with point in the center of the current window.") |
413430c5 EN |
3039 | (arg) |
3040 | register Lisp_Object arg; | |
7ab12479 JB |
3041 | { |
3042 | register struct window *w = XWINDOW (selected_window); | |
3043 | register int ht = window_internal_height (w); | |
113d9015 | 3044 | struct position pos; |
7ab12479 | 3045 | |
413430c5 | 3046 | if (NILP (arg)) |
7ab12479 | 3047 | { |
44fa5b1e | 3048 | extern int frame_garbaged; |
7ab12479 | 3049 | |
44fa5b1e | 3050 | SET_FRAME_GARBAGED (XFRAME (WINDOW_FRAME (w))); |
413430c5 | 3051 | XSETFASTINT (arg, ht / 2); |
7ab12479 | 3052 | } |
413430c5 | 3053 | else if (CONSP (arg)) /* Just C-u. */ |
7ab12479 | 3054 | { |
413430c5 | 3055 | XSETFASTINT (arg, ht / 2); |
7ab12479 JB |
3056 | } |
3057 | else | |
3058 | { | |
413430c5 EN |
3059 | arg = Fprefix_numeric_value (arg); |
3060 | CHECK_NUMBER (arg, 0); | |
7ab12479 JB |
3061 | } |
3062 | ||
413430c5 EN |
3063 | if (XINT (arg) < 0) |
3064 | XSETINT (arg, XINT (arg) + ht); | |
7ab12479 | 3065 | |
6ec8bbd2 | 3066 | pos = *vmotion (PT, - XINT (arg), w); |
7ab12479 | 3067 | |
113d9015 KH |
3068 | Fset_marker (w->start, make_number (pos.bufpos), w->buffer); |
3069 | w->start_at_line_beg = ((pos.bufpos == BEGV | |
5a255667 | 3070 | || FETCH_BYTE (pos.bufpos - 1) == '\n') |
113d9015 | 3071 | ? Qt : Qnil); |
7ab12479 JB |
3072 | w->force_start = Qt; |
3073 | ||
3074 | return Qnil; | |
3075 | } | |
3076 | \f | |
3077 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
3078 | 1, 1, "P", | |
3079 | "Position point relative to window.\n\ | |
19e3bf0a | 3080 | With no argument, position point at center of window.\n\ |
44fa5b1e | 3081 | An argument specifies frame line; zero means top of window,\n\ |
7ab12479 JB |
3082 | negative means relative to bottom of window.") |
3083 | (arg) | |
3084 | register Lisp_Object arg; | |
3085 | { | |
3086 | register struct window *w = XWINDOW (selected_window); | |
3087 | register int height = window_internal_height (w); | |
3088 | register int start; | |
540b6aa0 | 3089 | Lisp_Object window; |
7ab12479 | 3090 | |
265a9e55 | 3091 | if (NILP (arg)) |
d834a2e9 | 3092 | XSETFASTINT (arg, height / 2); |
7ab12479 JB |
3093 | else |
3094 | { | |
3095 | arg = Fprefix_numeric_value (arg); | |
3096 | if (XINT (arg) < 0) | |
3097 | XSETINT (arg, XINT (arg) + height); | |
3098 | } | |
3099 | ||
3100 | start = marker_position (w->start); | |
74112613 | 3101 | XSETWINDOW (window, w); |
7ab12479 JB |
3102 | if (start < BEGV || start > ZV) |
3103 | { | |
cd2be1dd | 3104 | Fvertical_motion (make_number (- (height / 2)), window); |
5ce7b543 | 3105 | Fset_marker (w->start, make_number (PT), w->buffer); |
7ab12479 JB |
3106 | w->start_at_line_beg = Fbolp (); |
3107 | w->force_start = Qt; | |
3108 | } | |
3109 | else | |
3110 | SET_PT (start); | |
3111 | ||
540b6aa0 | 3112 | return Fvertical_motion (arg, window); |
7ab12479 JB |
3113 | } |
3114 | \f | |
3115 | struct save_window_data | |
3116 | { | |
f5ccc0cc | 3117 | EMACS_INT size_from_Lisp_Vector_struct; |
7ab12479 | 3118 | struct Lisp_Vector *next_from_Lisp_Vector_struct; |
8f6ea2e9 | 3119 | Lisp_Object frame_width, frame_height, frame_menu_bar_lines; |
bdc727bf | 3120 | Lisp_Object selected_frame; |
7ab12479 JB |
3121 | Lisp_Object current_window; |
3122 | Lisp_Object current_buffer; | |
3123 | Lisp_Object minibuf_scroll_window; | |
3124 | Lisp_Object root_window; | |
bdc727bf | 3125 | Lisp_Object focus_frame; |
756b6edc RS |
3126 | /* Record the values of window-min-width and window-min-height |
3127 | so that window sizes remain consistent with them. */ | |
3128 | Lisp_Object min_width, min_height; | |
7ab12479 JB |
3129 | /* A vector, interpreted as a struct saved_window */ |
3130 | Lisp_Object saved_windows; | |
3131 | }; | |
ff06df24 | 3132 | |
7ab12479 JB |
3133 | /* This is saved as a Lisp_Vector */ |
3134 | struct saved_window | |
3135 | { | |
3136 | /* these first two must agree with struct Lisp_Vector in lisp.h */ | |
f5ccc0cc | 3137 | EMACS_INT size_from_Lisp_Vector_struct; |
7ab12479 JB |
3138 | struct Lisp_Vector *next_from_Lisp_Vector_struct; |
3139 | ||
3140 | Lisp_Object window; | |
3141 | Lisp_Object buffer, start, pointm, mark; | |
3142 | Lisp_Object left, top, width, height, hscroll; | |
3143 | Lisp_Object parent, prev; | |
3144 | Lisp_Object start_at_line_beg; | |
3145 | Lisp_Object display_table; | |
3146 | }; | |
3147 | #define SAVED_WINDOW_VECTOR_SIZE 14 /* Arg to Fmake_vector */ | |
3148 | ||
3149 | #define SAVED_WINDOW_N(swv,n) \ | |
3150 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) | |
3151 | ||
3152 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
5c4d25a6 | 3153 | "T if OBJECT is a window-configuration object.") |
413430c5 EN |
3154 | (object) |
3155 | Lisp_Object object; | |
7ab12479 | 3156 | { |
413430c5 | 3157 | if (WINDOW_CONFIGURATIONP (object)) |
7ab12479 JB |
3158 | return Qt; |
3159 | return Qnil; | |
3160 | } | |
3161 | ||
3162 | ||
d5b2799e RS |
3163 | DEFUN ("set-window-configuration", Fset_window_configuration, |
3164 | Sset_window_configuration, 1, 1, 0, | |
7ab12479 JB |
3165 | "Set the configuration of windows and buffers as specified by CONFIGURATION.\n\ |
3166 | CONFIGURATION must be a value previously returned\n\ | |
3167 | by `current-window-configuration' (which see).") | |
2f83aebe JB |
3168 | (configuration) |
3169 | Lisp_Object configuration; | |
7ab12479 | 3170 | { |
7ab12479 JB |
3171 | register struct save_window_data *data; |
3172 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 3173 | Lisp_Object new_current_buffer; |
fd482be5 | 3174 | Lisp_Object frame; |
44fa5b1e | 3175 | FRAME_PTR f; |
7ab12479 | 3176 | |
017b2bad | 3177 | while (!WINDOW_CONFIGURATIONP (configuration)) |
7ab12479 | 3178 | { |
2f83aebe JB |
3179 | configuration = wrong_type_argument (intern ("window-configuration-p"), |
3180 | configuration); | |
7ab12479 JB |
3181 | } |
3182 | ||
2f83aebe | 3183 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
3184 | saved_windows = XVECTOR (data->saved_windows); |
3185 | ||
7ab12479 | 3186 | new_current_buffer = data->current_buffer; |
265a9e55 | 3187 | if (NILP (XBUFFER (new_current_buffer)->name)) |
7ab12479 JB |
3188 | new_current_buffer = Qnil; |
3189 | ||
fd482be5 JB |
3190 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
3191 | f = XFRAME (frame); | |
9ace597f | 3192 | |
fd482be5 JB |
3193 | /* If f is a dead frame, don't bother rebuilding its window tree. |
3194 | However, there is other stuff we should still try to do below. */ | |
3195 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 3196 | { |
fd482be5 JB |
3197 | register struct window *w; |
3198 | register struct saved_window *p; | |
3199 | int k; | |
3200 | ||
3201 | /* If the frame has been resized since this window configuration was | |
3202 | made, we change the frame to the size specified in the | |
3203 | configuration, restore the configuration, and then resize it | |
3204 | back. We keep track of the prevailing height in these variables. */ | |
3205 | int previous_frame_height = FRAME_HEIGHT (f); | |
3206 | int previous_frame_width = FRAME_WIDTH (f); | |
8f6ea2e9 | 3207 | int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); |
fd482be5 JB |
3208 | |
3209 | if (XFASTINT (data->frame_height) != previous_frame_height | |
3210 | || XFASTINT (data->frame_width) != previous_frame_width) | |
3211 | change_frame_size (f, data->frame_height, data->frame_width, 0, 0); | |
e3678b64 | 3212 | #if defined (HAVE_WINDOW_SYSTEM) || defined (MSDOS) |
8f6ea2e9 KH |
3213 | if (XFASTINT (data->frame_menu_bar_lines) |
3214 | != previous_frame_menu_bar_lines) | |
3215 | x_set_menu_bar_lines (f, data->frame_menu_bar_lines, 0); | |
217f2871 | 3216 | #endif |
fd482be5 JB |
3217 | |
3218 | windows_or_buffers_changed++; | |
29aeee73 | 3219 | FRAME_WINDOW_SIZES_CHANGED (f) = 1; |
fd482be5 | 3220 | |
756b6edc RS |
3221 | /* Temporarily avoid any problems with windows that are smaller |
3222 | than they are supposed to be. */ | |
3223 | window_min_height = 1; | |
3224 | window_min_width = 1; | |
3225 | ||
fd482be5 JB |
3226 | /* Kludge Alert! |
3227 | Mark all windows now on frame as "deleted". | |
3228 | Restoring the new configuration "undeletes" any that are in it. | |
37962e60 | 3229 | |
fd482be5 JB |
3230 | Save their current buffers in their height fields, since we may |
3231 | need it later, if a buffer saved in the configuration is now | |
3232 | dead. */ | |
3233 | delete_all_subwindows (XWINDOW (FRAME_ROOT_WINDOW (f))); | |
3234 | ||
3235 | for (k = 0; k < saved_windows->size; k++) | |
3236 | { | |
3237 | p = SAVED_WINDOW_N (saved_windows, k); | |
3238 | w = XWINDOW (p->window); | |
3239 | w->next = Qnil; | |
7ab12479 | 3240 | |
fd482be5 JB |
3241 | if (!NILP (p->parent)) |
3242 | w->parent = SAVED_WINDOW_N (saved_windows, | |
3243 | XFASTINT (p->parent))->window; | |
3244 | else | |
3245 | w->parent = Qnil; | |
7ab12479 | 3246 | |
fd482be5 | 3247 | if (!NILP (p->prev)) |
7ab12479 | 3248 | { |
fd482be5 JB |
3249 | w->prev = SAVED_WINDOW_N (saved_windows, |
3250 | XFASTINT (p->prev))->window; | |
3251 | XWINDOW (w->prev)->next = p->window; | |
3252 | } | |
3253 | else | |
3254 | { | |
3255 | w->prev = Qnil; | |
3256 | if (!NILP (w->parent)) | |
3257 | { | |
3258 | if (EQ (p->width, XWINDOW (w->parent)->width)) | |
3259 | { | |
3260 | XWINDOW (w->parent)->vchild = p->window; | |
3261 | XWINDOW (w->parent)->hchild = Qnil; | |
3262 | } | |
3263 | else | |
3264 | { | |
3265 | XWINDOW (w->parent)->hchild = p->window; | |
3266 | XWINDOW (w->parent)->vchild = Qnil; | |
3267 | } | |
3268 | } | |
3269 | } | |
3270 | ||
3271 | /* If we squirreled away the buffer in the window's height, | |
3272 | restore it now. */ | |
017b2bad | 3273 | if (BUFFERP (w->height)) |
fd482be5 JB |
3274 | w->buffer = w->height; |
3275 | w->left = p->left; | |
3276 | w->top = p->top; | |
3277 | w->width = p->width; | |
3278 | w->height = p->height; | |
3279 | w->hscroll = p->hscroll; | |
3280 | w->display_table = p->display_table; | |
d834a2e9 | 3281 | XSETFASTINT (w->last_modified, 0); |
3cd21523 | 3282 | XSETFASTINT (w->last_overlay_modified, 0); |
fd482be5 JB |
3283 | |
3284 | /* Reinstall the saved buffer and pointers into it. */ | |
3285 | if (NILP (p->buffer)) | |
3286 | w->buffer = p->buffer; | |
3287 | else | |
3288 | { | |
3289 | if (!NILP (XBUFFER (p->buffer)->name)) | |
3290 | /* If saved buffer is alive, install it. */ | |
3291 | { | |
3292 | w->buffer = p->buffer; | |
3293 | w->start_at_line_beg = p->start_at_line_beg; | |
3294 | set_marker_restricted (w->start, | |
3295 | Fmarker_position (p->start), | |
3296 | w->buffer); | |
3297 | set_marker_restricted (w->pointm, | |
3298 | Fmarker_position (p->pointm), | |
3299 | w->buffer); | |
3300 | Fset_marker (XBUFFER (w->buffer)->mark, | |
3301 | Fmarker_position (p->mark), w->buffer); | |
3302 | ||
3303 | /* As documented in Fcurrent_window_configuration, don't | |
3304 | save the location of point in the buffer which was current | |
3305 | when the window configuration was recorded. */ | |
6b54027b RS |
3306 | if (!EQ (p->buffer, new_current_buffer) |
3307 | && XBUFFER (p->buffer) == current_buffer) | |
fd482be5 JB |
3308 | Fgoto_char (w->pointm); |
3309 | } | |
52a68e98 RS |
3310 | else if (NILP (w->buffer) || NILP (XBUFFER (w->buffer)->name)) |
3311 | /* Else unless window has a live buffer, get one. */ | |
7ab12479 | 3312 | { |
fd482be5 JB |
3313 | w->buffer = Fcdr (Fcar (Vbuffer_alist)); |
3314 | /* This will set the markers to beginning of visible | |
3315 | range. */ | |
3316 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
3317 | set_marker_restricted (w->pointm, make_number (0),w->buffer); | |
3318 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
3319 | } |
3320 | else | |
fd482be5 | 3321 | /* Keeping window's old buffer; make sure the markers |
52a68e98 | 3322 | are real. */ |
7ab12479 | 3323 | { |
fd482be5 JB |
3324 | /* Set window markers at start of visible range. */ |
3325 | if (XMARKER (w->start)->buffer == 0) | |
3326 | set_marker_restricted (w->start, make_number (0), | |
3327 | w->buffer); | |
3328 | if (XMARKER (w->pointm)->buffer == 0) | |
3329 | set_marker_restricted (w->pointm, | |
3330 | (make_number | |
3331 | (BUF_PT (XBUFFER (w->buffer)))), | |
3332 | w->buffer); | |
3333 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
3334 | } |
3335 | } | |
3336 | } | |
9ace597f | 3337 | |
fd482be5 JB |
3338 | FRAME_ROOT_WINDOW (f) = data->root_window; |
3339 | Fselect_window (data->current_window); | |
7ab12479 | 3340 | |
db269683 | 3341 | if (NILP (data->focus_frame) |
017b2bad | 3342 | || (FRAMEP (data->focus_frame) |
db269683 JB |
3343 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) |
3344 | Fredirect_frame_focus (frame, data->focus_frame); | |
7ab12479 | 3345 | |
fd482be5 JB |
3346 | #if 0 /* I don't understand why this is needed, and it causes problems |
3347 | when the frame's old selected window has been deleted. */ | |
e4e59717 | 3348 | if (f != selected_frame && FRAME_WINDOW_P (f)) |
9a7c6fc3 RS |
3349 | do_switch_frame (WINDOW_FRAME (XWINDOW (data->root_window)), |
3350 | Qnil, 0); | |
fd482be5 JB |
3351 | #endif |
3352 | ||
3353 | /* Set the screen height to the value it had before this function. */ | |
3354 | if (previous_frame_height != FRAME_HEIGHT (f) | |
3355 | || previous_frame_width != FRAME_WIDTH (f)) | |
3356 | change_frame_size (f, previous_frame_height, previous_frame_width, | |
3357 | 0, 0); | |
e3678b64 | 3358 | #if defined (HAVE_WINDOW_SYSTEM) || defined (MSDOS) |
8f6ea2e9 KH |
3359 | if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f)) |
3360 | x_set_menu_bar_lines (f, previous_frame_menu_bar_lines, 0); | |
217f2871 | 3361 | #endif |
fd482be5 | 3362 | } |
bdc727bf | 3363 | |
756b6edc RS |
3364 | /* Restore the minimum heights recorded in the configuration. */ |
3365 | window_min_height = XINT (data->min_height); | |
3366 | window_min_width = XINT (data->min_width); | |
3367 | ||
bdc727bf | 3368 | /* Fselect_window will have made f the selected frame, so we |
d5b2799e | 3369 | reselect the proper frame here. Fhandle_switch_frame will change the |
bdc727bf JB |
3370 | selected window too, but that doesn't make the call to |
3371 | Fselect_window above totally superfluous; it still sets f's | |
3372 | selected window. */ | |
fd482be5 | 3373 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) |
9a7c6fc3 | 3374 | do_switch_frame (data->selected_frame, Qnil, 0); |
bdc727bf JB |
3375 | |
3376 | if (!NILP (new_current_buffer)) | |
3377 | Fset_buffer (new_current_buffer); | |
3378 | ||
7ab12479 JB |
3379 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
3380 | return (Qnil); | |
3381 | } | |
3382 | ||
44fa5b1e | 3383 | /* Mark all windows now on frame as deleted |
7ab12479 JB |
3384 | by setting their buffers to nil. */ |
3385 | ||
fd482be5 | 3386 | void |
7ab12479 JB |
3387 | delete_all_subwindows (w) |
3388 | register struct window *w; | |
3389 | { | |
265a9e55 | 3390 | if (!NILP (w->next)) |
7ab12479 | 3391 | delete_all_subwindows (XWINDOW (w->next)); |
265a9e55 | 3392 | if (!NILP (w->vchild)) |
7ab12479 | 3393 | delete_all_subwindows (XWINDOW (w->vchild)); |
265a9e55 | 3394 | if (!NILP (w->hchild)) |
7ab12479 | 3395 | delete_all_subwindows (XWINDOW (w->hchild)); |
605be8af JB |
3396 | |
3397 | w->height = w->buffer; /* See Fset_window_configuration for excuse. */ | |
3398 | ||
86e48436 RS |
3399 | if (!NILP (w->buffer)) |
3400 | unshow_buffer (w); | |
3401 | ||
605be8af JB |
3402 | /* We set all three of these fields to nil, to make sure that we can |
3403 | distinguish this dead window from any live window. Live leaf | |
3404 | windows will have buffer set, and combination windows will have | |
3405 | vchild or hchild set. */ | |
3406 | w->buffer = Qnil; | |
3407 | w->vchild = Qnil; | |
3408 | w->hchild = Qnil; | |
7ab12479 JB |
3409 | } |
3410 | \f | |
3411 | static int | |
3412 | count_windows (window) | |
3413 | register struct window *window; | |
3414 | { | |
3415 | register int count = 1; | |
265a9e55 | 3416 | if (!NILP (window->next)) |
7ab12479 | 3417 | count += count_windows (XWINDOW (window->next)); |
265a9e55 | 3418 | if (!NILP (window->vchild)) |
7ab12479 | 3419 | count += count_windows (XWINDOW (window->vchild)); |
265a9e55 | 3420 | if (!NILP (window->hchild)) |
7ab12479 JB |
3421 | count += count_windows (XWINDOW (window->hchild)); |
3422 | return count; | |
3423 | } | |
3424 | ||
3425 | static int | |
3426 | save_window_save (window, vector, i) | |
3427 | Lisp_Object window; | |
3428 | struct Lisp_Vector *vector; | |
3429 | int i; | |
3430 | { | |
3431 | register struct saved_window *p; | |
3432 | register struct window *w; | |
3433 | register Lisp_Object tem; | |
3434 | ||
265a9e55 | 3435 | for (;!NILP (window); window = w->next) |
7ab12479 JB |
3436 | { |
3437 | p = SAVED_WINDOW_N (vector, i); | |
3438 | w = XWINDOW (window); | |
3439 | ||
d834a2e9 | 3440 | XSETFASTINT (w->temslot, i++); |
7ab12479 JB |
3441 | p->window = window; |
3442 | p->buffer = w->buffer; | |
3443 | p->left = w->left; | |
3444 | p->top = w->top; | |
3445 | p->width = w->width; | |
3446 | p->height = w->height; | |
3447 | p->hscroll = w->hscroll; | |
3448 | p->display_table = w->display_table; | |
265a9e55 | 3449 | if (!NILP (w->buffer)) |
7ab12479 JB |
3450 | { |
3451 | /* Save w's value of point in the window configuration. | |
3452 | If w is the selected window, then get the value of point | |
3453 | from the buffer; pointm is garbage in the selected window. */ | |
3454 | if (EQ (window, selected_window)) | |
3455 | { | |
3456 | p->pointm = Fmake_marker (); | |
3457 | Fset_marker (p->pointm, BUF_PT (XBUFFER (w->buffer)), | |
3458 | w->buffer); | |
3459 | } | |
3460 | else | |
eeb82665 | 3461 | p->pointm = Fcopy_marker (w->pointm, Qnil); |
7ab12479 | 3462 | |
eeb82665 | 3463 | p->start = Fcopy_marker (w->start, Qnil); |
7ab12479 JB |
3464 | p->start_at_line_beg = w->start_at_line_beg; |
3465 | ||
3466 | tem = XBUFFER (w->buffer)->mark; | |
eeb82665 | 3467 | p->mark = Fcopy_marker (tem, Qnil); |
7ab12479 JB |
3468 | } |
3469 | else | |
3470 | { | |
3471 | p->pointm = Qnil; | |
3472 | p->start = Qnil; | |
3473 | p->mark = Qnil; | |
3474 | p->start_at_line_beg = Qnil; | |
3475 | } | |
3476 | ||
265a9e55 | 3477 | if (NILP (w->parent)) |
7ab12479 JB |
3478 | p->parent = Qnil; |
3479 | else | |
3480 | p->parent = XWINDOW (w->parent)->temslot; | |
3481 | ||
265a9e55 | 3482 | if (NILP (w->prev)) |
7ab12479 JB |
3483 | p->prev = Qnil; |
3484 | else | |
3485 | p->prev = XWINDOW (w->prev)->temslot; | |
3486 | ||
265a9e55 | 3487 | if (!NILP (w->vchild)) |
7ab12479 | 3488 | i = save_window_save (w->vchild, vector, i); |
265a9e55 | 3489 | if (!NILP (w->hchild)) |
7ab12479 JB |
3490 | i = save_window_save (w->hchild, vector, i); |
3491 | } | |
3492 | ||
3493 | return i; | |
3494 | } | |
3495 | ||
a0d76c27 EN |
3496 | DEFUN ("current-window-configuration", Fcurrent_window_configuration, |
3497 | Scurrent_window_configuration, 0, 1, 0, | |
44fa5b1e JB |
3498 | "Return an object representing the current window configuration of FRAME.\n\ |
3499 | If FRAME is nil or omitted, use the selected frame.\n\ | |
7ab12479 JB |
3500 | This describes the number of windows, their sizes and current buffers,\n\ |
3501 | and for each displayed buffer, where display starts, and the positions of\n\ | |
3502 | point and mark. An exception is made for point in the current buffer:\n\ | |
bdc727bf JB |
3503 | its value is -not- saved.\n\ |
3504 | This also records the currently selected frame, and FRAME's focus\n\ | |
3505 | redirection (see `redirect-frame-focus').") | |
44fa5b1e JB |
3506 | (frame) |
3507 | Lisp_Object frame; | |
7ab12479 JB |
3508 | { |
3509 | register Lisp_Object tem; | |
3510 | register int n_windows; | |
3511 | register struct save_window_data *data; | |
da2792e0 | 3512 | register struct Lisp_Vector *vec; |
7ab12479 | 3513 | register int i; |
44fa5b1e | 3514 | FRAME_PTR f; |
43bad991 | 3515 | |
44fa5b1e JB |
3516 | if (NILP (frame)) |
3517 | f = selected_frame; | |
43bad991 JB |
3518 | else |
3519 | { | |
44fa5b1e JB |
3520 | CHECK_LIVE_FRAME (frame, 0); |
3521 | f = XFRAME (frame); | |
43bad991 | 3522 | } |
7ab12479 | 3523 | |
44fa5b1e | 3524 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
da2792e0 KH |
3525 | vec = allocate_vectorlike (VECSIZE (struct save_window_data)); |
3526 | for (i = 0; i < VECSIZE (struct save_window_data); i++) | |
3527 | vec->contents[i] = Qnil; | |
3528 | vec->size = VECSIZE (struct save_window_data); | |
3529 | data = (struct save_window_data *)vec; | |
3530 | ||
d834a2e9 KH |
3531 | XSETFASTINT (data->frame_width, FRAME_WIDTH (f)); |
3532 | XSETFASTINT (data->frame_height, FRAME_HEIGHT (f)); | |
3533 | XSETFASTINT (data->frame_menu_bar_lines, FRAME_MENU_BAR_LINES (f)); | |
74112613 | 3534 | XSETFRAME (data->selected_frame, selected_frame); |
44fa5b1e | 3535 | data->current_window = FRAME_SELECTED_WINDOW (f); |
74112613 | 3536 | XSETBUFFER (data->current_buffer, current_buffer); |
7ab12479 | 3537 | data->minibuf_scroll_window = Vminibuf_scroll_window; |
44fa5b1e | 3538 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 3539 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
74112613 KH |
3540 | XSETINT (data->min_height, window_min_height); |
3541 | XSETINT (data->min_width, window_min_width); | |
7ab12479 JB |
3542 | tem = Fmake_vector (make_number (n_windows), Qnil); |
3543 | data->saved_windows = tem; | |
3544 | for (i = 0; i < n_windows; i++) | |
3545 | XVECTOR (tem)->contents[i] | |
3546 | = Fmake_vector (make_number (SAVED_WINDOW_VECTOR_SIZE), Qnil); | |
44fa5b1e | 3547 | save_window_save (FRAME_ROOT_WINDOW (f), |
7ab12479 | 3548 | XVECTOR (tem), 0); |
74112613 | 3549 | XSETWINDOW_CONFIGURATION (tem, data); |
7ab12479 JB |
3550 | return (tem); |
3551 | } | |
3552 | ||
3553 | DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion, | |
3554 | 0, UNEVALLED, 0, | |
3555 | "Execute body, preserving window sizes and contents.\n\ | |
eb16ec06 RS |
3556 | Restore which buffer appears in which window, where display starts,\n\ |
3557 | and the value of point and mark for each window.\n\ | |
3558 | Also restore which buffer is current.\n\ | |
3559 | But do not preserve point in the current buffer.\n\ | |
7ab12479 JB |
3560 | Does not restore the value of point in current buffer.") |
3561 | (args) | |
3562 | Lisp_Object args; | |
3563 | { | |
3564 | register Lisp_Object val; | |
3565 | register int count = specpdl_ptr - specpdl; | |
3566 | ||
3567 | record_unwind_protect (Fset_window_configuration, | |
43bad991 | 3568 | Fcurrent_window_configuration (Qnil)); |
7ab12479 JB |
3569 | val = Fprogn (args); |
3570 | return unbind_to (count, val); | |
3571 | } | |
3572 | \f | |
3573 | init_window_once () | |
3574 | { | |
44fa5b1e | 3575 | selected_frame = make_terminal_frame (); |
bc6c324f | 3576 | XSETFRAME (Vterminal_frame, selected_frame); |
44fa5b1e JB |
3577 | minibuf_window = selected_frame->minibuffer_window; |
3578 | selected_window = selected_frame->selected_window; | |
3579 | last_nonminibuf_frame = selected_frame; | |
5b03d3c0 RS |
3580 | |
3581 | window_initialized = 1; | |
7ab12479 JB |
3582 | } |
3583 | ||
3584 | syms_of_window () | |
3585 | { | |
3586 | Qwindowp = intern ("windowp"); | |
3587 | staticpro (&Qwindowp); | |
3588 | ||
806b4d9b JB |
3589 | Qwindow_live_p = intern ("window-live-p"); |
3590 | staticpro (&Qwindow_live_p); | |
605be8af | 3591 | |
2cccc823 | 3592 | Qtemp_buffer_show_hook = intern ("temp-buffer-show-hook"); |
a58ec57d RS |
3593 | staticpro (&Qtemp_buffer_show_hook); |
3594 | ||
7ab12479 JB |
3595 | DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function, |
3596 | "Non-nil means call as function to display a help buffer.\n\ | |
c3ef6b1d | 3597 | The function is called with one argument, the buffer to be displayed.\n\ |
f52cca03 RS |
3598 | Used by `with-output-to-temp-buffer'.\n\ |
3599 | If this function is used, then it must do the entire job of showing\n\ | |
3600 | the buffer; `temp-buffer-show-hook' is not run unless this function runs it."); | |
7ab12479 JB |
3601 | Vtemp_buffer_show_function = Qnil; |
3602 | ||
3603 | DEFVAR_LISP ("display-buffer-function", &Vdisplay_buffer_function, | |
3604 | "If non-nil, function to call to handle `display-buffer'.\n\ | |
3605 | It will receive two args, the buffer and a flag which if non-nil means\n\ | |
3606 | that the currently selected window is not acceptable.\n\ | |
3607 | Commands such as `switch-to-buffer-other-window' and `find-file-other-window'\n\ | |
3608 | work using this function."); | |
3609 | Vdisplay_buffer_function = Qnil; | |
3610 | ||
7ab12479 JB |
3611 | DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window, |
3612 | "Non-nil means it is the window that C-M-v in minibuffer should scroll."); | |
3613 | Vminibuf_scroll_window = Qnil; | |
3614 | ||
3615 | DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer, | |
3616 | "If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window."); | |
3617 | Vother_window_scroll_buffer = Qnil; | |
3618 | ||
44fa5b1e | 3619 | DEFVAR_BOOL ("pop-up-frames", &pop_up_frames, |
700f75a4 | 3620 | "*Non-nil means `display-buffer' should make a separate frame."); |
44fa5b1e | 3621 | pop_up_frames = 0; |
7ab12479 | 3622 | |
44fa5b1e | 3623 | DEFVAR_LISP ("pop-up-frame-function", &Vpop_up_frame_function, |
a90712c2 | 3624 | "Function to call to handle automatic new frame creation.\n\ |
44fa5b1e | 3625 | It is called with no arguments and should return a newly created frame.\n\ |
7ab12479 | 3626 | \n\ |
44fa5b1e JB |
3627 | A typical value might be `(lambda () (new-frame pop-up-frame-alist))'\n\ |
3628 | where `pop-up-frame-alist' would hold the default frame parameters."); | |
3629 | Vpop_up_frame_function = Qnil; | |
7ab12479 | 3630 | |
a90712c2 RS |
3631 | DEFVAR_LISP ("special-display-buffer-names", &Vspecial_display_buffer_names, |
3632 | "*List of buffer names that should have their own special frames.\n\ | |
3633 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
524580a4 | 3634 | using `special-display-function'. See also `special-display-regexps'.\n\ |
3548e138 | 3635 | \n\ |
524580a4 RS |
3636 | An element of the list can be a list instead of just a string.\n\ |
3637 | There are two ways to use a list as an element:\n\ | |
3638 | (BUFFER FRAME-PARAMETERS...) (BUFFER FUNCTION OTHER-ARGS...)\n\ | |
3639 | In the first case, FRAME-PARAMETERS are used to create the frame.\n\ | |
3640 | In the latter case, FUNCTION is called with BUFFER as the first argument,\n\ | |
3641 | followed by OTHER-ARGS--it can display BUFFER in any way it likes.\n\ | |
3642 | All this is done by the function found in `special-display-function'."); | |
a90712c2 RS |
3643 | Vspecial_display_buffer_names = Qnil; |
3644 | ||
3645 | DEFVAR_LISP ("special-display-regexps", &Vspecial_display_regexps, | |
3646 | "*List of regexps saying which buffers should have their own special frames.\n\ | |
3647 | If a buffer name matches one of these regexps, it gets its own frame.\n\ | |
3648 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
0a952b57 | 3649 | using `special-display-function'.\n\ |
3548e138 | 3650 | \n\ |
524580a4 RS |
3651 | An element of the list can be a list instead of just a string.\n\ |
3652 | There are two ways to use a list as an element:\n\ | |
3653 | (REGEXP FRAME-PARAMETERS...) (REGEXP FUNCTION OTHER-ARGS...)\n\ | |
3654 | In the first case, FRAME-PARAMETERS are used to create the frame.\n\ | |
3655 | In the latter case, FUNCTION is called with the buffer as first argument,\n\ | |
3656 | followed by OTHER-ARGS--it can display the buffer in any way it likes.\n\ | |
3657 | All this is done by the function found in `special-display-function'."); | |
a90712c2 RS |
3658 | Vspecial_display_regexps = Qnil; |
3659 | ||
3660 | DEFVAR_LISP ("special-display-function", &Vspecial_display_function, | |
3661 | "Function to call to make a new frame for a special buffer.\n\ | |
0a952b57 RS |
3662 | It is called with two arguments, the buffer and optional buffer specific\n\ |
3663 | data, and should return a window displaying that buffer.\n\ | |
a90712c2 | 3664 | The default value makes a separate frame for the buffer,\n\ |
bdd3a802 | 3665 | using `special-display-frame-alist' to specify the frame parameters.\n\ |
a90712c2 RS |
3666 | \n\ |
3667 | A buffer is special if its is listed in `special-display-buffer-names'\n\ | |
3668 | or matches a regexp in `special-display-regexps'."); | |
3669 | Vspecial_display_function = Qnil; | |
3670 | ||
855d8627 RS |
3671 | DEFVAR_LISP ("same-window-buffer-names", &Vsame_window_buffer_names, |
3672 | "*List of buffer names that should appear in the selected window.\n\ | |
3673 | Displaying one of these buffers using `display-buffer' or `pop-to-buffer'\n\ | |
3674 | switches to it in the selected window, rather than making it appear\n\ | |
2e5ce1a0 | 3675 | in some other window.\n\ |
855d8627 RS |
3676 | \n\ |
3677 | An element of the list can be a cons cell instead of just a string.\n\ | |
3678 | Then the car must be a string, which specifies the buffer name.\n\ | |
3679 | This is for compatibility with `special-display-buffer-names';\n\ | |
3680 | the cdr of the cons cell is ignored.\n\ | |
3681 | \n\ | |
3682 | See also `same-window-regexps'."); | |
3683 | Vsame_window_buffer_names = Qnil; | |
3684 | ||
3685 | DEFVAR_LISP ("same-window-regexps", &Vsame_window_regexps, | |
3686 | "*List of regexps saying which buffers should appear in the selected window.\n\ | |
3687 | If a buffer name matches one of these regexps, then displaying it\n\ | |
3688 | using `display-buffer' or `pop-to-buffer' switches to it\n\ | |
3689 | in the selected window, rather than making it appear in some other window.\n\ | |
3690 | \n\ | |
3691 | An element of the list can be a cons cell instead of just a string.\n\ | |
3692 | Then the car must be a string, which specifies the buffer name.\n\ | |
3693 | This is for compatibility with `special-display-buffer-names';\n\ | |
3694 | the cdr of the cons cell is ignored.\n\ | |
3695 | \n\ | |
3696 | See also `same-window-buffer-names'."); | |
3697 | Vsame_window_regexps = Qnil; | |
3698 | ||
7ab12479 JB |
3699 | DEFVAR_BOOL ("pop-up-windows", &pop_up_windows, |
3700 | "*Non-nil means display-buffer should make new windows."); | |
3701 | pop_up_windows = 1; | |
3702 | ||
3703 | DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines, | |
3704 | "*Number of lines of continuity when scrolling by screenfuls."); | |
3705 | next_screen_context_lines = 2; | |
3706 | ||
3707 | DEFVAR_INT ("split-height-threshold", &split_height_threshold, | |
3708 | "*display-buffer would prefer to split the largest window if this large.\n\ | |
3709 | If there is only one window, it is split regardless of this value."); | |
3710 | split_height_threshold = 500; | |
3711 | ||
3712 | DEFVAR_INT ("window-min-height", &window_min_height, | |
3713 | "*Delete any window less than this tall (including its mode line)."); | |
3714 | window_min_height = 4; | |
3715 | ||
3716 | DEFVAR_INT ("window-min-width", &window_min_width, | |
3717 | "*Delete any window less than this wide."); | |
3718 | window_min_width = 10; | |
3719 | ||
9317a85d RS |
3720 | DEFVAR_BOOL ("scroll-preserve-screen-position", |
3721 | &scroll_preserve_screen_position, | |
3722 | "*Nonzero means scroll commands move point to keep its screen line unchanged."); | |
3723 | scroll_preserve_screen_position = 0; | |
3724 | ||
7ab12479 JB |
3725 | defsubr (&Sselected_window); |
3726 | defsubr (&Sminibuffer_window); | |
3727 | defsubr (&Swindow_minibuffer_p); | |
3728 | defsubr (&Swindowp); | |
806b4d9b | 3729 | defsubr (&Swindow_live_p); |
7ab12479 JB |
3730 | defsubr (&Spos_visible_in_window_p); |
3731 | defsubr (&Swindow_buffer); | |
3732 | defsubr (&Swindow_height); | |
3733 | defsubr (&Swindow_width); | |
3734 | defsubr (&Swindow_hscroll); | |
3735 | defsubr (&Sset_window_hscroll); | |
190eb263 RS |
3736 | defsubr (&Swindow_redisplay_end_trigger); |
3737 | defsubr (&Sset_window_redisplay_end_trigger); | |
7ab12479 | 3738 | defsubr (&Swindow_edges); |
d5783c40 JB |
3739 | defsubr (&Scoordinates_in_window_p); |
3740 | defsubr (&Swindow_at); | |
7ab12479 JB |
3741 | defsubr (&Swindow_point); |
3742 | defsubr (&Swindow_start); | |
3743 | defsubr (&Swindow_end); | |
3744 | defsubr (&Sset_window_point); | |
3745 | defsubr (&Sset_window_start); | |
3746 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 3747 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
3748 | defsubr (&Swindow_display_table); |
3749 | defsubr (&Sset_window_display_table); | |
3750 | defsubr (&Snext_window); | |
3751 | defsubr (&Sprevious_window); | |
3752 | defsubr (&Sother_window); | |
3753 | defsubr (&Sget_lru_window); | |
3754 | defsubr (&Sget_largest_window); | |
3755 | defsubr (&Sget_buffer_window); | |
3756 | defsubr (&Sdelete_other_windows); | |
3757 | defsubr (&Sdelete_windows_on); | |
3758 | defsubr (&Sreplace_buffer_in_windows); | |
3759 | defsubr (&Sdelete_window); | |
3760 | defsubr (&Sset_window_buffer); | |
3761 | defsubr (&Sselect_window); | |
4628f7a4 EN |
3762 | defsubr (&Sspecial_display_p); |
3763 | defsubr (&Ssame_window_p); | |
7ab12479 JB |
3764 | defsubr (&Sdisplay_buffer); |
3765 | defsubr (&Ssplit_window); | |
3766 | defsubr (&Senlarge_window); | |
3767 | defsubr (&Sshrink_window); | |
3768 | defsubr (&Sscroll_up); | |
3769 | defsubr (&Sscroll_down); | |
3770 | defsubr (&Sscroll_left); | |
3771 | defsubr (&Sscroll_right); | |
ccd0664b | 3772 | defsubr (&Sother_window_for_scrolling); |
7ab12479 JB |
3773 | defsubr (&Sscroll_other_window); |
3774 | defsubr (&Srecenter); | |
3775 | defsubr (&Smove_to_window_line); | |
3776 | defsubr (&Swindow_configuration_p); | |
3777 | defsubr (&Sset_window_configuration); | |
3778 | defsubr (&Scurrent_window_configuration); | |
3779 | defsubr (&Ssave_window_excursion); | |
3780 | } | |
3781 | ||
3782 | keys_of_window () | |
3783 | { | |
3784 | initial_define_key (control_x_map, '1', "delete-other-windows"); | |
3785 | initial_define_key (control_x_map, '2', "split-window"); | |
3786 | initial_define_key (control_x_map, '0', "delete-window"); | |
3787 | initial_define_key (control_x_map, 'o', "other-window"); | |
3788 | initial_define_key (control_x_map, '^', "enlarge-window"); | |
3789 | initial_define_key (control_x_map, '<', "scroll-left"); | |
3790 | initial_define_key (control_x_map, '>', "scroll-right"); | |
3791 | ||
3792 | initial_define_key (global_map, Ctl ('V'), "scroll-up"); | |
3793 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); | |
3794 | initial_define_key (meta_map, 'v', "scroll-down"); | |
3795 | ||
3796 | initial_define_key (global_map, Ctl('L'), "recenter"); | |
3797 | initial_define_key (meta_map, 'r', "move-to-window-line"); | |
3798 | } |