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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
3 | Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc. | |
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 | |
9 | the Free Software Foundation; either version 1, or (at your option) | |
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 | |
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
7ab12479 JB |
21 | #include "config.h" |
22 | #include "lisp.h" | |
23 | #include "buffer.h" | |
24 | #include "screen.h" | |
25 | #include "window.h" | |
26 | #include "commands.h" | |
27 | #include "indent.h" | |
28 | #include "termchar.h" | |
29 | #include "disptab.h" | |
30 | ||
31 | Lisp_Object Qwindowp; | |
32 | ||
33 | Lisp_Object Fnext_window (), Fdelete_window (), Fselect_window (); | |
34 | Lisp_Object Fset_window_buffer (), Fsplit_window (), Frecenter (); | |
35 | ||
36 | static void delete_all_subwindows (); | |
37 | static struct window *decode_window(); | |
38 | ||
39 | /* This is the window in which the terminal's cursor should | |
40 | be left when nothing is being done with it. This must | |
41 | always be a leaf window, and its buffer is selected by | |
42 | the top level editing loop at the end of each command. | |
43 | ||
44 | This value is always the same as | |
45 | SCREEN_SELECTED_WINDOW (selected_screen). */ | |
46 | ||
47 | Lisp_Object selected_window; | |
48 | ||
49 | #ifndef MULTI_SCREEN | |
50 | ||
51 | /* The root window for the screen. | |
52 | This is accessed via SCREEN_ROOT_WINDOW (selected_screen). */ | |
53 | Lisp_Object root_window; | |
54 | ||
55 | #endif | |
56 | ||
57 | /* The minibuffer window of the selected screen. | |
58 | Note that you cannot test for minibufferness of an arbitrary window | |
59 | by comparing against this; but you can test for minibufferness of | |
60 | the selected window. */ | |
61 | Lisp_Object minibuf_window; | |
62 | ||
63 | /* Non-nil means it is the window for C-M-v to scroll | |
64 | when the minibuffer is selected. */ | |
65 | Lisp_Object Vminibuf_scroll_window; | |
66 | ||
67 | /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
68 | Lisp_Object Vother_window_scroll_buffer; | |
69 | ||
70 | /* Window that the mouse is over (nil if no mouse support). */ | |
71 | Lisp_Object Vmouse_window; | |
72 | ||
73 | /* Last mouse click data structure (nil if no mouse support). */ | |
74 | Lisp_Object Vmouse_event; | |
75 | ||
76 | /* Non-nil means it's function to call to display temp buffers. */ | |
77 | Lisp_Object Vtemp_buffer_show_function; | |
78 | ||
79 | /* If a window gets smaller than either of these, it is removed. */ | |
80 | int window_min_height; | |
81 | int window_min_width; | |
82 | ||
83 | /* Nonzero implies Fdisplay_buffer should create windows. */ | |
84 | int pop_up_windows; | |
85 | ||
86 | /* Nonzero implies make new X screens for Fdisplay_buffer. */ | |
43bad991 | 87 | int pop_up_screens; |
7ab12479 JB |
88 | |
89 | /* Non-nil means use this function instead of default */ | |
43bad991 | 90 | Lisp_Object Vpop_up_screen_function; |
7ab12479 JB |
91 | |
92 | /* Function to call to handle Fdisplay_buffer. */ | |
93 | Lisp_Object Vdisplay_buffer_function; | |
94 | ||
95 | /* Fdisplay_buffer always splits the largest window | |
96 | if that window is more than this high. */ | |
97 | int split_height_threshold; | |
98 | ||
99 | /* Number of lines of continuity in scrolling by screenfuls. */ | |
100 | int next_screen_context_lines; | |
101 | ||
102 | /* Incremented for each window created. */ | |
103 | static int sequence_number; | |
104 | ||
105 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
106 | \f | |
107 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, | |
108 | "Returns t if OBJ is a window.") | |
109 | (obj) | |
110 | Lisp_Object obj; | |
111 | { | |
112 | return XTYPE (obj) == Lisp_Window ? Qt : Qnil; | |
113 | } | |
114 | ||
115 | Lisp_Object | |
116 | make_window () | |
117 | { | |
118 | register Lisp_Object val; | |
119 | register struct window *p; | |
120 | ||
121 | /* Add sizeof (Lisp_Object) here because sizeof (struct Lisp_Vector) | |
122 | includes the first element. */ | |
123 | val = Fmake_vector ( | |
124 | make_number ((sizeof (struct window) - sizeof (struct Lisp_Vector) | |
125 | + sizeof (Lisp_Object)) | |
126 | / sizeof (Lisp_Object)), | |
127 | Qnil); | |
128 | XSETTYPE (val, Lisp_Window); | |
129 | p = XWINDOW (val); | |
130 | XFASTINT (p->sequence_number) = ++sequence_number; | |
131 | XFASTINT (p->left) = XFASTINT (p->top) | |
132 | = XFASTINT (p->height) = XFASTINT (p->width) | |
133 | = XFASTINT (p->hscroll) = 0; | |
134 | XFASTINT (p->last_point_x) = XFASTINT (p->last_point_y) = 0; | |
135 | p->start = Fmake_marker (); | |
136 | p->pointm = Fmake_marker (); | |
137 | XFASTINT (p->use_time) = 0; | |
138 | p->screen = Qnil; | |
139 | p->display_table = Qnil; | |
140 | p->dedicated = Qnil; | |
141 | return val; | |
142 | } | |
143 | ||
144 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
145 | "Return the window that the cursor now appears in and commands apply to.") | |
146 | () | |
147 | { | |
148 | return selected_window; | |
149 | } | |
150 | ||
151 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 0, 0, | |
152 | "Return the window used now for minibuffers.") | |
153 | () | |
154 | { | |
155 | #ifdef MULTI_SCREEN | |
156 | if (minibuf_level == 0 | |
157 | && !EQ (minibuf_window, selected_screen->minibuffer_window) | |
158 | && !EQ (Qnil, selected_screen->minibuffer_window)) | |
159 | { | |
160 | Fset_window_buffer (selected_screen->minibuffer_window, | |
161 | XWINDOW (minibuf_window)->buffer); | |
162 | minibuf_window = selected_screen->minibuffer_window; | |
163 | } | |
164 | ||
165 | if (SCREENP (Vglobal_minibuffer_screen)) | |
166 | minibuf_window = XSCREEN (Vglobal_minibuffer_screen)->minibuffer_window; | |
167 | else | |
168 | minibuf_window = selected_screen->minibuffer_window; | |
169 | ||
170 | #endif /* MULTI_SCREEN */ | |
171 | return minibuf_window; | |
172 | } | |
173 | ||
174 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 1, 1, 0, | |
175 | "Returns non-nil if WINDOW is a minibuffer window.") | |
176 | (window) | |
177 | Lisp_Object window; | |
178 | { | |
179 | struct window *w = decode_window (window); | |
180 | return (MINI_WINDOW_P (w) ? Qt : Qnil); | |
181 | } | |
182 | ||
183 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, | |
184 | Spos_visible_in_window_p, 0, 2, 0, | |
185 | "Return t if position POS is currently on the screen in WINDOW.\n\ | |
186 | Returns nil if that position is scrolled vertically out of view.\n\ | |
187 | POS defaults to point; WINDOW, to the selected window.") | |
188 | (pos, window) | |
189 | Lisp_Object pos, window; | |
190 | { | |
191 | register struct window *w; | |
192 | register int top; | |
193 | register int height; | |
194 | register int posint; | |
195 | register struct buffer *buf; | |
196 | struct position posval; | |
197 | ||
198 | if (NULL (pos)) | |
199 | posint = point; | |
200 | else | |
201 | { | |
202 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
203 | posint = XINT (pos); | |
204 | } | |
205 | ||
206 | if (NULL (window)) | |
207 | window = selected_window; | |
208 | else | |
209 | CHECK_WINDOW (window, 1); | |
210 | w = XWINDOW (window); | |
211 | top = marker_position (w->start); | |
212 | ||
213 | if (posint < top) | |
214 | return Qnil; | |
215 | ||
216 | height = XFASTINT (w->height) - ! MINI_WINDOW_P (w); | |
217 | ||
218 | buf = XBUFFER (w->buffer); | |
219 | if (XFASTINT (w->last_modified) >= BUF_MODIFF (buf)) | |
220 | { | |
221 | /* If screen is up to date, | |
222 | use the info recorded about how much text fit on it. */ | |
223 | if (posint < BUF_Z (buf) - XFASTINT (w->window_end_pos) | |
224 | || (XFASTINT (w->window_end_vpos) < height)) | |
225 | return Qt; | |
226 | return Qnil; | |
227 | } | |
228 | else | |
229 | { | |
230 | if (posint > BUF_Z (buf)) | |
231 | return Qnil; | |
232 | ||
233 | /* If that info is not correct, calculate afresh */ | |
234 | posval = *compute_motion (top, 0, 0, posint, height, 0, | |
235 | XFASTINT (w->width) - 1 | |
236 | - (XFASTINT (w->width) + XFASTINT (w->left) | |
237 | != XSCREEN (w->screen)->width), | |
238 | XINT (w->hscroll), 0); | |
239 | ||
240 | return posval.vpos < height ? Qt : Qnil; | |
241 | } | |
242 | } | |
243 | \f | |
244 | static struct window * | |
245 | decode_window (window) | |
246 | register Lisp_Object window; | |
247 | { | |
248 | if (NULL (window)) | |
249 | return XWINDOW (selected_window); | |
250 | ||
251 | CHECK_WINDOW (window, 0); | |
252 | return XWINDOW (window); | |
253 | } | |
254 | ||
255 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, | |
256 | "Return the buffer that WINDOW is displaying.") | |
257 | (window) | |
258 | Lisp_Object window; | |
259 | { | |
260 | return decode_window (window)->buffer; | |
261 | } | |
262 | ||
263 | DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0, | |
264 | "Return the number of lines in WINDOW (including its mode line).") | |
265 | (window) | |
266 | Lisp_Object window; | |
267 | { | |
268 | return decode_window (window)->height; | |
269 | } | |
270 | ||
271 | DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0, | |
272 | "Return the number of columns in WINDOW.") | |
273 | (window) | |
274 | Lisp_Object window; | |
275 | { | |
276 | register struct window *w = decode_window (window); | |
277 | register int width = w->width; | |
278 | ||
279 | /* If this window does not end at the right margin, | |
280 | must deduct one column for the border */ | |
281 | if ((width + w->left) == SCREEN_WIDTH (XSCREEN (WINDOW_SCREEN (w)))) | |
282 | return width; | |
283 | return width - 1; | |
284 | } | |
285 | ||
286 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, | |
287 | "Return the number of columns by which WINDOW is scrolled from left margin.") | |
288 | (window) | |
289 | Lisp_Object window; | |
290 | { | |
291 | return decode_window (window)->hscroll; | |
292 | } | |
293 | ||
294 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, | |
295 | "Set number of columns WINDOW is scrolled from left margin to NCOL.\n\ | |
296 | NCOL should be zero or positive.") | |
297 | (window, ncol) | |
298 | register Lisp_Object window, ncol; | |
299 | { | |
300 | register struct window *w; | |
301 | ||
302 | CHECK_NUMBER (ncol, 1); | |
303 | if (XINT (ncol) < 0) XFASTINT (ncol) = 0; | |
304 | if (XFASTINT (ncol) >= (1 << (SHORTBITS - 1))) | |
305 | args_out_of_range (ncol, Qnil); | |
306 | w = decode_window (window); | |
307 | if (w->hscroll != ncol) | |
308 | clip_changed = 1; /* Prevent redisplay shortcuts */ | |
309 | w->hscroll = ncol; | |
310 | return ncol; | |
311 | } | |
312 | ||
313 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, | |
314 | "Return a list of the edge coordinates of WINDOW.\n\ | |
315 | \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of screen.\n\ | |
316 | RIGHT is one more than the rightmost column used by WINDOW,\n\ | |
317 | and BOTTOM is one more than the bottommost row used by WINDOW\n\ | |
318 | and its mode-line.") | |
319 | (window) | |
320 | Lisp_Object window; | |
321 | { | |
322 | register struct window *w = decode_window (window); | |
323 | ||
324 | return Fcons (w->left, Fcons (w->top, | |
325 | Fcons (make_number (XFASTINT (w->left) + XFASTINT (w->width)), | |
326 | Fcons (make_number (XFASTINT (w->top) | |
327 | + XFASTINT (w->height)), | |
328 | Qnil)))); | |
329 | } | |
330 | ||
331 | /* Find the window containing column x, row y, and return it as a | |
332 | Lisp_Object. If x, y is on the window's modeline, set *modeline_p | |
333 | to 1; otherwise set it to 0. If there is no window under x, y | |
334 | return nil and leave *modeline_p unmodified. */ | |
335 | Lisp_Object | |
336 | window_from_coordinates (screen, x, y, modeline_p) | |
337 | SCREEN_PTR screen; | |
338 | int x, y; | |
339 | int *modeline_p; | |
340 | { | |
341 | register Lisp_Object tem, first; | |
342 | ||
343 | first = SCREEN_SELECTED_WINDOW (screen); | |
344 | tem = next_screen_window (screen, first, Qt); | |
345 | ||
346 | while (1) | |
347 | { | |
348 | int found = coordinates_in_window (XWINDOW (tem), &x, &y); | |
349 | ||
350 | if (found) | |
351 | { | |
7ab12479 JB |
352 | *modeline_p = (found == -1); |
353 | return tem; | |
354 | } | |
355 | ||
356 | if (EQ (tem, first)) | |
357 | return Qnil; | |
358 | ||
359 | tem = next_screen_window (screen, tem, Qt); | |
360 | } | |
361 | } | |
362 | ||
363 | DEFUN ("locate-window-from-coordinates", | |
364 | Flocate_window_from_coordinates, Slocate_window_from_coordinates, | |
365 | 2, 2, 0, | |
366 | "Return window on SCREEN containing position COORDINATES.\n\ | |
367 | COORDINATES is a list (SCREEN-X SCREEN-Y) of coordinates\n\ | |
368 | which are relative to 0,0 at the top left corner of the screen.") | |
369 | (screen, coordinates) | |
370 | Lisp_Object screen, coordinates; | |
371 | { | |
372 | int part; | |
373 | ||
374 | CHECK_SCREEN (screen, 0); | |
375 | CHECK_CONS (coordinates, 1); | |
376 | ||
377 | return window_from_coordinates (XSCREEN (screen), | |
378 | XINT (Fcar (coordinates)), | |
379 | XINT (Fcar (Fcdr (coordinates))), | |
380 | &part); | |
381 | } | |
382 | ||
383 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
384 | "Return current value of point in WINDOW.\n\ | |
385 | For a nonselected window, this is the value point would have\n\ | |
386 | if that window were selected.\n\ | |
387 | \n\ | |
388 | Note that, when WINDOW is the selected window and its buffer\n\ | |
389 | is also currently selected, the value returned is the same as (point).\n\ | |
390 | It would be more strictly correct to return the `top-level' value\n\ | |
391 | of point, outside of any save-excursion forms.\n\ | |
392 | But that is hard to define.") | |
393 | (window) | |
394 | Lisp_Object window; | |
395 | { | |
396 | register struct window *w = decode_window (window); | |
397 | ||
398 | if (w == XWINDOW (selected_window) | |
399 | && current_buffer == XBUFFER (w->buffer)) | |
400 | return Fpoint (); | |
401 | return Fmarker_position (w->pointm); | |
402 | } | |
403 | ||
404 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
405 | "Return position at which display currently starts in WINDOW.") | |
406 | (window) | |
407 | Lisp_Object window; | |
408 | { | |
409 | return Fmarker_position (decode_window (window)->start); | |
410 | } | |
411 | ||
412 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 1, 0, | |
413 | "Return position at which display currently ends in WINDOW.") | |
414 | (window) | |
415 | Lisp_Object window; | |
416 | { | |
417 | Lisp_Object value; | |
418 | struct window *w = decode_window (window); | |
419 | ||
420 | XSET (value, Lisp_Int, | |
421 | BUF_Z (current_buffer) - XFASTINT (w->window_end_pos)); | |
422 | ||
423 | return value; | |
424 | } | |
425 | ||
426 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, | |
427 | "Make point value in WINDOW be at position POS in WINDOW's buffer.") | |
428 | (window, pos) | |
429 | Lisp_Object window, pos; | |
430 | { | |
431 | register struct window *w = decode_window (window); | |
432 | ||
433 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
434 | if (w == XWINDOW (selected_window)) | |
435 | Fgoto_char (pos); | |
436 | else | |
437 | set_marker_restricted (w->pointm, pos, w->buffer); | |
438 | ||
439 | return pos; | |
440 | } | |
441 | ||
442 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
443 | "Make display in WINDOW start at position POS in WINDOW's buffer.\n\ | |
444 | Optional third arg NOFORCE non-nil inhibits next redisplay\n\ | |
445 | from overriding motion of point in order to display at this exact start.") | |
446 | (window, pos, noforce) | |
447 | Lisp_Object window, pos, noforce; | |
448 | { | |
449 | register struct window *w = decode_window (window); | |
450 | ||
451 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
452 | set_marker_restricted (w->start, pos, w->buffer); | |
453 | /* this is not right, but much easier than doing what is right. */ | |
454 | w->start_at_line_beg = Qnil; | |
455 | if (NULL (noforce)) | |
456 | w->force_start = Qt; | |
457 | w->update_mode_line = Qt; | |
458 | XFASTINT (w->last_modified) = 0; | |
62c07cc7 JB |
459 | if (!EQ (window, selected_window)) |
460 | windows_or_buffers_changed++; | |
7ab12479 JB |
461 | return pos; |
462 | } | |
463 | ||
464 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, | |
465 | 1, 1, 0, | |
466 | "Return WINDOW's dedicated object, usually t or nil.\n\ | |
467 | See also `set-window-buffer-dedicated'.") | |
468 | (window) | |
469 | Lisp_Object window; | |
470 | { | |
471 | return decode_window (window)->dedicated; | |
472 | } | |
473 | ||
474 | DEFUN ("set-window-buffer-dedicated", Fset_window_buffer_dedicated, | |
475 | Sset_window_buffer_dedicated, 2, 2, 0, | |
476 | "Make WINDOW display BUFFER and be dedicated to that buffer.\n\ | |
477 | Then Emacs will not automatically change which buffer appears in WINDOW.\n\ | |
478 | If BUFFER is nil, make WINDOW not be dedicated (but don't change which\n\ | |
479 | buffer appears in it currently).") | |
480 | (window, arg) | |
481 | Lisp_Object window, arg; | |
482 | { | |
483 | register struct window *w = decode_window (window); | |
484 | ||
485 | if (NULL (arg)) | |
486 | w->dedicated = Qnil; | |
487 | else | |
488 | { | |
489 | Fset_window_buffer (window, Fget_buffer_create (arg)); | |
490 | w->dedicated = Qt; | |
491 | } | |
492 | ||
493 | return w->dedicated; | |
494 | } | |
495 | ||
496 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, | |
497 | 0, 1, 0, | |
498 | "Return the display-table that WINDOW is using.") | |
499 | (window) | |
500 | Lisp_Object window; | |
501 | { | |
502 | return decode_window (window)->display_table; | |
503 | } | |
504 | ||
505 | /* Get the display table for use currently on window W. | |
506 | This is either W's display table or W's buffer's display table. | |
507 | Ignore the specified tables if they are not valid; | |
508 | if no valid table is specified, return 0. */ | |
509 | ||
510 | struct Lisp_Vector * | |
511 | window_display_table (w) | |
512 | struct window *w; | |
513 | { | |
514 | Lisp_Object tem; | |
515 | tem = w->display_table; | |
516 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
517 | return XVECTOR (tem); | |
518 | tem = XBUFFER (w->buffer)->display_table; | |
519 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
520 | return XVECTOR (tem); | |
521 | tem = Vstandard_display_table; | |
522 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
523 | return XVECTOR (tem); | |
524 | return 0; | |
525 | } | |
526 | ||
527 | DEFUN ("set-window-display-table", | |
528 | Fset_window_display_table, Sset_window_display_table, 2, 2, 0, | |
529 | "Set WINDOW's display-table to TABLE.") | |
530 | (window, table) | |
531 | register Lisp_Object window, table; | |
532 | { | |
533 | register struct window *w; | |
534 | register Lisp_Object z; /* Return value. */ | |
535 | ||
536 | w = decode_window (window); | |
537 | w->display_table = table; | |
538 | return table; | |
539 | } | |
540 | \f | |
541 | /* Record info on buffer window w is displaying | |
542 | when it is about to cease to display that buffer. */ | |
543 | static | |
544 | unshow_buffer (w) | |
545 | register struct window *w; | |
546 | { | |
547 | Lisp_Object buf = w->buffer; | |
548 | ||
549 | if (XBUFFER (buf) != XMARKER (w->pointm)->buffer) | |
550 | abort (); | |
551 | ||
552 | if (w == XWINDOW (selected_window) | |
553 | || ! EQ (buf, XWINDOW (selected_window)->buffer)) | |
554 | /* Do this except when the selected window's buffer | |
555 | is being removed from some other window. */ | |
556 | XBUFFER (buf)->last_window_start = marker_position (w->start); | |
557 | ||
558 | /* Point in the selected window's buffer | |
559 | is actually stored in that buffer, and the window's pointm isn't used. | |
560 | So don't clobber point in that buffer. */ | |
561 | if (! EQ (buf, XWINDOW (selected_window)->buffer)) | |
562 | BUF_PT (XBUFFER (buf)) | |
563 | = clip_to_bounds (BUF_BEGV (XBUFFER (buf)), | |
564 | marker_position (w->pointm), | |
565 | BUF_ZV (XBUFFER (buf))); | |
566 | } | |
567 | ||
568 | /* Put replacement into the window structure in place of old. */ | |
569 | static | |
570 | replace_window (old, replacement) | |
571 | Lisp_Object old, replacement; | |
572 | { | |
573 | register Lisp_Object tem; | |
574 | register struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
575 | ||
576 | /* If OLD is its screen's root_window, then replacement is the new | |
577 | root_window for that screen. */ | |
578 | ||
579 | if (old == XSCREEN (o->screen)->root_window) | |
580 | XSCREEN (o->screen)->root_window = replacement; | |
581 | ||
582 | p->left = o->left; | |
583 | p->top = o->top; | |
584 | p->width = o->width; | |
585 | p->height = o->height; | |
586 | ||
587 | p->next = tem = o->next; | |
588 | if (!NULL (tem)) | |
589 | XWINDOW (tem)->prev = replacement; | |
590 | ||
591 | p->prev = tem = o->prev; | |
592 | if (!NULL (tem)) | |
593 | XWINDOW (tem)->next = replacement; | |
594 | ||
595 | p->parent = tem = o->parent; | |
596 | if (!NULL (tem)) | |
597 | { | |
598 | if (EQ (XWINDOW (tem)->vchild, old)) | |
599 | XWINDOW (tem)->vchild = replacement; | |
600 | if (EQ (XWINDOW (tem)->hchild, old)) | |
601 | XWINDOW (tem)->hchild = replacement; | |
602 | } | |
603 | ||
604 | /*** Here, if replacement is a vertical combination | |
605 | and so is its new parent, we should make replacement's | |
606 | children be children of that parent instead. ***/ | |
607 | } | |
608 | ||
609 | DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 1, "", | |
610 | "Remove WINDOW from the display. Default is selected window.") | |
611 | (window) | |
612 | register Lisp_Object window; | |
613 | { | |
614 | register Lisp_Object tem, parent, sib; | |
615 | register struct window *p; | |
616 | register struct window *par; | |
617 | ||
618 | if (NULL (window)) | |
619 | window = selected_window; | |
620 | else | |
621 | CHECK_WINDOW (window, 0); | |
622 | ||
623 | p = XWINDOW (window); | |
624 | parent = p->parent; | |
625 | if (NULL (parent)) | |
626 | error ("Attempt to delete minibuffer or sole ordinary window"); | |
627 | par = XWINDOW (parent); | |
628 | ||
629 | windows_or_buffers_changed++; | |
630 | ||
631 | if (EQ (window, selected_window)) | |
632 | Fselect_window (Fnext_window (window, Qnil, Qnil)); | |
633 | ||
634 | tem = p->buffer; | |
635 | /* tem is null for dummy parent windows | |
636 | (which have inferiors but not any contents themselves) */ | |
637 | if (!NULL (tem)) | |
638 | { | |
639 | unshow_buffer (p); | |
640 | unchain_marker (p->pointm); | |
641 | unchain_marker (p->start); | |
642 | p->buffer = Qnil; | |
643 | } | |
644 | ||
645 | tem = p->next; | |
646 | if (!NULL (tem)) | |
647 | XWINDOW (tem)->prev = p->prev; | |
648 | ||
649 | tem = p->prev; | |
650 | if (!NULL (tem)) | |
651 | XWINDOW (tem)->next = p->next; | |
652 | ||
653 | if (EQ (window, par->hchild)) | |
654 | par->hchild = p->next; | |
655 | if (EQ (window, par->vchild)) | |
656 | par->vchild = p->next; | |
657 | ||
658 | /* Find one of our siblings to give our space to. */ | |
659 | sib = p->prev; | |
660 | if (NULL (sib)) | |
661 | { | |
662 | /* If p gives its space to its next sibling, that sibling needs | |
663 | to have its top/left side pulled back to where p's is. | |
664 | set_window_{height,width} will re-position the sibling's | |
665 | children. */ | |
666 | sib = p->next; | |
667 | XFASTINT (XWINDOW (sib)->top) = p->top; | |
668 | XFASTINT (XWINDOW (sib)->left) = p->left; | |
669 | } | |
670 | ||
671 | /* Stretch that sibling. */ | |
672 | if (!NULL (par->vchild)) | |
673 | set_window_height (sib, | |
674 | XFASTINT (XWINDOW (sib)->height) + XFASTINT (p->height), | |
675 | 1); | |
676 | if (!NULL (par->hchild)) | |
677 | set_window_width (sib, | |
678 | XFASTINT (XWINDOW (sib)->width) + XFASTINT (p->width), | |
679 | 1); | |
680 | ||
681 | /* If parent now has only one child, | |
682 | put the child into the parent's place. */ | |
683 | ||
684 | tem = par->hchild; | |
685 | if (NULL (tem)) | |
686 | tem = par->vchild; | |
687 | if (NULL (XWINDOW (tem)->next)) | |
688 | replace_window (parent, tem); | |
689 | return Qnil; | |
690 | } | |
691 | \f | |
692 | #ifdef MULTI_SCREEN | |
693 | Lisp_Object | |
694 | next_screen_window (screen, window, mini) | |
695 | SCREEN_PTR screen; | |
696 | Lisp_Object window, mini; | |
697 | { | |
698 | Lisp_Object tem; | |
699 | ||
700 | if (NULL (window)) | |
701 | window = SCREEN_SELECTED_WINDOW (screen); | |
702 | ||
703 | /* Do this loop at least once, to get the next window, and perhaps | |
704 | again, if we hit the minibuffer and that is not acceptable. */ | |
705 | do | |
706 | { | |
707 | /* Find a window that actually has a next one. This loop | |
708 | climbs up the tree. */ | |
709 | while (tem = XWINDOW (window)->next, NULL (tem)) | |
710 | if (tem = XWINDOW (window)->parent, !NULL (tem)) | |
711 | window = tem; | |
712 | else | |
713 | /* Since window's next and parent are nil, we have found | |
714 | the minibuffer window of this screen. */ | |
715 | { | |
716 | tem = SCREEN_ROOT_WINDOW (screen); | |
717 | break; | |
718 | } | |
719 | ||
720 | window = tem; | |
721 | /* If we're in a combination window, find its first child and | |
722 | recurse on that. Otherwise, we've found the window we want. */ | |
723 | while (1) | |
724 | { | |
725 | if (!NULL (XWINDOW (window)->hchild)) | |
726 | window = XWINDOW (window)->hchild; | |
727 | else if (!NULL (XWINDOW (window)->vchild)) | |
728 | window = XWINDOW (window)->vchild; | |
729 | else break; | |
730 | } | |
731 | } | |
732 | /* Exit the loop if | |
733 | this isn't a minibuffer window, or | |
734 | we're accepting all minibuffer windows, even when inactive, or | |
735 | we're accepting active minibuffer windows and this one is. */ | |
736 | while (MINI_WINDOW_P (XWINDOW (window)) | |
737 | && !EQ (mini, Qt) | |
738 | && (!NULL (mini) || !minibuf_level)); | |
739 | ||
740 | return window; | |
741 | } | |
742 | #endif | |
743 | ||
744 | extern Lisp_Object next_screen (), prev_screen (); | |
745 | ||
746 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, | |
747 | "Return next window after WINDOW in canonical ordering of windows.\n\ | |
748 | Optional second arg MINIBUF t means count the minibuffer window\n\ | |
749 | even if not active. If MINIBUF is neither t nor nil it means\n\ | |
750 | not to count the minibuffer even if it is active.\n\ | |
751 | Optional third arg ALL-SCREENS t means include all windows in all screens;\n\ | |
752 | otherwise cycle within the selected screen, with the exception that if a\n\ | |
753 | global minibuffer screen is in use and MINIBUF is t, all screens are used.") | |
754 | (window, mini, all_screens) | |
755 | register Lisp_Object window, mini, all_screens; | |
756 | { | |
757 | register Lisp_Object tem; | |
758 | ||
759 | if (NULL (window)) | |
760 | window = selected_window; | |
761 | else | |
762 | CHECK_WINDOW (window, 0); | |
763 | ||
764 | #ifdef MULTI_SCREEN | |
765 | if (EQ (mini, Qt) | |
766 | || (! NULL (mini) && minibuf_level)) | |
767 | { | |
768 | if (SCREENP (Vglobal_minibuffer_screen)) | |
769 | all_screens = Qt; | |
770 | } | |
771 | #endif | |
772 | ||
773 | /* Do this loop at least once, to get the next window, and perhaps | |
774 | again, if we hit the minibuffer and that is not acceptable. */ | |
775 | do | |
776 | { | |
777 | /* Find a window that actually has a next one. This loop | |
778 | climbs up the tree. */ | |
779 | while (tem = XWINDOW (window)->next, NULL (tem)) | |
780 | if (tem = XWINDOW (window)->parent, !NULL (tem)) | |
781 | window = tem; | |
782 | else | |
783 | /* Since window's next and parent are nil, it must be | |
784 | the minibuffer window of this screen. If all_screens, | |
785 | jump to the next screen. */ | |
786 | { | |
787 | tem = WINDOW_SCREEN (XWINDOW (window)); | |
788 | #ifdef MULTI_SCREEN | |
789 | if (! NULL (all_screens)) | |
790 | tem = next_screen (tem, NULL (mini) ? 0 : 1); | |
791 | #endif | |
792 | tem = SCREEN_ROOT_WINDOW (XSCREEN (tem)); | |
793 | break; | |
794 | } | |
795 | ||
796 | window = tem; | |
797 | /* If we're in a combination window, find its first child and | |
798 | recurse on that. Otherwise, we've found the window we want. */ | |
799 | while (1) | |
800 | { | |
801 | if (!NULL (XWINDOW (window)->hchild)) | |
802 | window = XWINDOW (window)->hchild; | |
803 | else if (!NULL (XWINDOW (window)->vchild)) | |
804 | window = XWINDOW (window)->vchild; | |
805 | else break; | |
806 | } | |
807 | } | |
808 | /* Exit the loop if | |
809 | this isn't a minibuffer window, or | |
810 | we're accepting all minibuffer windows, even when inactive, or | |
811 | we're accepting active minibuffer windows and this one is, or | |
812 | this is a screen whose only window is a minibuffer window. */ | |
813 | while (MINI_WINDOW_P (XWINDOW (window)) | |
814 | && !EQ (mini, Qt) | |
815 | && (!NULL (mini) || !minibuf_level) | |
816 | && !EQ (SCREEN_ROOT_WINDOW (XSCREEN (XWINDOW (window)->screen)), | |
817 | SCREEN_MINIBUF_WINDOW (XSCREEN (XWINDOW (window)->screen)))); | |
818 | ||
819 | return window; | |
820 | } | |
821 | ||
822 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, | |
823 | "Return previous window before WINDOW in canonical ordering of windows.\n\ | |
824 | Optional second arg MINIBUF t means count the minibuffer window\n\ | |
825 | even if not active. If MINIBUF is neither t nor nil it means\n\ | |
826 | not to count the minibuffer even if it is active.\n\ | |
827 | Optional third arg ALL-SCREENS t means include all windows in all screens;\n\ | |
828 | otherwise cycle within the selected screen, with the exception that if a\n\ | |
829 | global minibuffer screen is in use and MINIBUF is t, all screens are used.") | |
830 | (window, mini, all_screens) | |
831 | register Lisp_Object window, mini, all_screens; | |
832 | { | |
833 | register Lisp_Object tem; | |
834 | ||
835 | if (NULL (window)) | |
836 | window = selected_window; | |
837 | else | |
838 | CHECK_WINDOW (window, 0); | |
839 | ||
840 | #ifdef MULTI_SCREEN | |
841 | if (EQ (mini, Qt) | |
842 | || (! NULL (mini) && minibuf_level)) | |
843 | { | |
844 | if (SCREENP (Vglobal_minibuffer_screen)) | |
845 | all_screens = Qt; | |
846 | } | |
847 | #endif | |
848 | ||
849 | /* Do this loop at least once, to get the previous window, and perhaps | |
850 | again, if we hit the minibuffer and that is not acceptable. */ | |
851 | do | |
852 | { | |
853 | /* Find a window that actually has a previous one. This loop | |
854 | climbs up the tree. */ | |
855 | while (tem = XWINDOW (window)->prev, NULL (tem)) | |
856 | if (tem = XWINDOW (window)->parent, !NULL (tem)) | |
857 | window = tem; | |
858 | else | |
859 | /* Since window's prev and parent are nil, we have found | |
860 | the root window of this screen. If all_screens, jump | |
861 | to the previous screen. */ | |
862 | { | |
863 | tem = WINDOW_SCREEN (XWINDOW (window)); | |
864 | #ifdef MULTI_SCREEN | |
865 | if (! NULL (all_screens)) | |
866 | tem = prev_screen (tem, NULL (mini) ? 0 : 1); | |
867 | #endif | |
868 | tem = SCREEN_ROOT_WINDOW (XSCREEN (tem)); | |
869 | break; | |
870 | } | |
871 | ||
872 | window = tem; | |
873 | /* If we're in a combination window, find its last child and | |
874 | recurse on that. Otherwise, we've found the window we want. */ | |
875 | while (1) | |
876 | { | |
877 | if (!NULL (XWINDOW (window)->hchild)) | |
878 | window = XWINDOW (window)->hchild; | |
879 | else if (!NULL (XWINDOW (window)->vchild)) | |
880 | window = XWINDOW (window)->vchild; | |
881 | else break; | |
882 | while (tem = XWINDOW (window)->next, !NULL (tem)) | |
883 | window = tem; | |
884 | } | |
885 | } | |
886 | /* Exit the loop if | |
887 | this isn't a minibuffer window, or | |
888 | we're accepting all minibuffer windows, even when inactive, or | |
889 | we're accepting active minibuffer windows and this one is, or | |
890 | this is a screen whose only window is a minibuffer window. */ | |
891 | while (MINI_WINDOW_P (XWINDOW (window)) | |
892 | && !EQ (mini, Qt) | |
893 | && (!NULL (mini) || !minibuf_level) | |
894 | && !EQ (SCREEN_ROOT_WINDOW (XSCREEN (XWINDOW (window)->screen)), | |
895 | SCREEN_MINIBUF_WINDOW (XSCREEN (XWINDOW (window)->screen)))); | |
896 | ||
897 | return window; | |
898 | } | |
899 | ||
62c07cc7 | 900 | DEFUN ("other-window", Fother_window, Sother_window, 1, 2, "p", |
7ab12479 JB |
901 | "Select the ARG'th different window on this screen.\n\ |
902 | All windows on current screen are arranged in a cyclic order.\n\ | |
903 | This command selects the window ARG steps away in that order.\n\ | |
904 | A negative ARG moves in the opposite order. If the optional second\n\ | |
905 | argument ALL_SCREENS is non-nil, cycle through all screens.") | |
906 | (n, all_screens) | |
907 | register Lisp_Object n, all_screens; | |
908 | { | |
909 | register int i; | |
910 | register Lisp_Object w; | |
911 | ||
912 | CHECK_NUMBER (n, 0); | |
913 | w = selected_window; | |
914 | i = XINT (n); | |
915 | ||
916 | while (i > 0) | |
917 | { | |
918 | w = Fnext_window (w, Qnil, all_screens); | |
919 | i--; | |
920 | } | |
921 | while (i < 0) | |
922 | { | |
923 | w = Fprevious_window (w, Qnil, all_screens); | |
924 | i++; | |
925 | } | |
926 | Fselect_window (w); | |
927 | return Qnil; | |
928 | } | |
929 | \f | |
930 | /* Look at all windows, performing an operation specified by TYPE | |
931 | with argument OBJ. | |
932 | If SCREENS is Qt, look at all screens, if Qnil, look at just the selected | |
933 | screen. If SCREENS is a screen, just look at windows on that screen. | |
934 | If MINI is non-zero, perform the operation on minibuffer windows too. | |
935 | */ | |
936 | ||
937 | enum window_loop | |
938 | { | |
939 | WINDOW_LOOP_UNUSED, | |
940 | GET_BUFFER_WINDOW, /* Arg is buffer */ | |
941 | GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
942 | DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
943 | DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
944 | GET_LARGEST_WINDOW, | |
945 | UNSHOW_BUFFER, /* Arg is buffer */ | |
946 | }; | |
947 | ||
948 | static Lisp_Object | |
949 | window_loop (type, obj, mini, screens) | |
950 | enum window_loop type; | |
951 | register Lisp_Object obj, screens; | |
952 | int mini; | |
953 | { | |
954 | register Lisp_Object w; | |
955 | register Lisp_Object best_window; | |
956 | register Lisp_Object next_window; | |
957 | register Lisp_Object first_window; | |
958 | SCREEN_PTR screen; | |
959 | ||
960 | /* If we're only looping through windows on a particular screen, | |
961 | screen points to that screen. If we're looping through windows | |
962 | on all screens, screen is 0. */ | |
963 | if (SCREENP (screens)) | |
964 | screen = XSCREEN (screens); | |
965 | else if (NULL (screens)) | |
966 | screen = selected_screen; | |
967 | else | |
968 | screen = 0; | |
969 | ||
970 | /* Pick a window to start with. */ | |
971 | if (XTYPE (obj) == Lisp_Window) | |
972 | first_window = obj; | |
973 | else if (screen) | |
974 | first_window = SCREEN_SELECTED_WINDOW (screen); | |
975 | else | |
976 | first_window = SCREEN_SELECTED_WINDOW (selected_screen); | |
977 | ||
978 | w = first_window; | |
979 | best_window = Qnil; | |
980 | do | |
981 | { | |
982 | /* Pick the next window now, since some operations will delete | |
983 | the current window. */ | |
984 | #ifdef MULTI_SCREEN | |
985 | if (screen) | |
986 | next_window = next_screen_window (screen, w, mini ? Qt : Qnil); | |
987 | else | |
988 | #endif /* MULTI_SCREEN */ | |
989 | /* We know screen is 0, so we're looping through all screens. | |
990 | Or we know this isn't a MULTI_SCREEN Emacs, so who cares? */ | |
991 | next_window = Fnext_window (w, mini ? Qt : Qnil, Qt); | |
992 | ||
993 | if (!MINI_WINDOW_P (XWINDOW (w)) | |
994 | || (mini && minibuf_level > 0)) | |
995 | switch (type) | |
996 | { | |
997 | case GET_BUFFER_WINDOW: | |
998 | #if 0 | |
999 | /* Ignore invisible and iconified screens. */ | |
1000 | if (! SCREEN_VISIBLE_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w)))) | |
1001 | || SCREEN_ICONIFIED_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w))))) | |
1002 | break; | |
1003 | #endif | |
1004 | if (XBUFFER (XWINDOW (w)->buffer) == XBUFFER (obj)) | |
1005 | return w; | |
1006 | break; | |
1007 | ||
1008 | case GET_LRU_WINDOW: | |
1009 | /* t as arg means consider only full-width windows */ | |
1010 | if (!NULL (obj) && XFASTINT (XWINDOW (w)->width) != screen->width) | |
1011 | break; | |
1012 | #if 0 | |
1013 | /* Ignore invisible and iconified screens. */ | |
1014 | if (! SCREEN_VISIBLE_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w)))) | |
1015 | || SCREEN_ICONIFIED_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w))))) | |
1016 | break; | |
1017 | #endif | |
1018 | /* Ignore dedicated windows and minibuffers. */ | |
1019 | if (MINI_WINDOW_P (XWINDOW (w)) | |
1020 | || !NULL (XWINDOW (w)->dedicated)) | |
1021 | break; | |
1022 | if (NULL (best_window) | |
1023 | || (XFASTINT (XWINDOW (best_window)->use_time) | |
1024 | > XFASTINT (XWINDOW (w)->use_time))) | |
1025 | best_window = w; | |
1026 | break; | |
1027 | ||
1028 | case DELETE_OTHER_WINDOWS: | |
1029 | if (XWINDOW (w) != XWINDOW (obj)) | |
1030 | Fdelete_window (w); | |
1031 | break; | |
1032 | ||
1033 | case DELETE_BUFFER_WINDOWS: | |
1034 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1035 | { | |
1036 | /* If we're deleting the buffer displayed in the only window | |
1037 | on the screen, find a new buffer to display there. */ | |
1038 | if (NULL (XWINDOW (w)->parent)) | |
1039 | { | |
1040 | Lisp_Object new_buffer = Fother_buffer (obj); | |
1041 | if (NULL (new_buffer)) | |
1042 | new_buffer | |
1043 | = Fget_buffer_create (build_string ("*scratch*")); | |
1044 | Fset_window_buffer (w, new_buffer); | |
1045 | Fset_buffer (XWINDOW (w)->buffer); | |
1046 | } | |
1047 | else | |
1048 | Fdelete_window (w); | |
1049 | } | |
1050 | break; | |
1051 | ||
1052 | case GET_LARGEST_WINDOW: | |
1053 | #if 0 | |
1054 | /* Ignore invisible and iconified screens. */ | |
1055 | if (! SCREEN_VISIBLE_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w)))) | |
1056 | || SCREEN_ICONIFIED_P (XSCREEN (WINDOW_SCREEN (XWINDOW (w))))) | |
1057 | break; | |
1058 | #endif | |
1059 | /* Ignore dedicated windows and minibuffers. */ | |
1060 | if (MINI_WINDOW_P (XWINDOW (w)) | |
1061 | || !NULL (XWINDOW (w)->dedicated)) | |
1062 | break; | |
1063 | { | |
1064 | struct window *best_window_ptr = XWINDOW (best_window); | |
1065 | struct window *w_ptr = XWINDOW (w); | |
1066 | if (NULL (best_window) || | |
1067 | (XFASTINT (w_ptr->height) * XFASTINT (w_ptr->width)) | |
1068 | > (XFASTINT (best_window_ptr->height) | |
1069 | * XFASTINT (best_window_ptr->width))) | |
1070 | best_window = w; | |
1071 | } | |
1072 | break; | |
1073 | ||
1074 | case UNSHOW_BUFFER: | |
1075 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1076 | { | |
1077 | /* Find another buffer to show in this window. */ | |
1078 | Lisp_Object another_buffer = Fother_buffer (obj); | |
1079 | if (NULL (another_buffer)) | |
1080 | another_buffer | |
1081 | = Fget_buffer_create (build_string ("*scratch*")); | |
1082 | Fset_window_buffer (w, another_buffer); | |
1083 | if (EQ (w, selected_window)) | |
1084 | Fset_buffer (XWINDOW (w)->buffer); | |
1085 | } | |
1086 | break; | |
1087 | } | |
1088 | w = next_window; | |
1089 | } | |
1090 | while (! EQ (w, first_window)); | |
1091 | ||
1092 | return best_window; | |
1093 | } | |
1094 | \f | |
1095 | DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0, | |
1096 | "Return the window least recently selected or used for display.\n\ | |
1097 | If optional argument SCREENS is t, search all screens. If SCREEN is a\n\ | |
1098 | screen, search only that screen.\n") | |
1099 | (screens) | |
1100 | Lisp_Object screens; | |
1101 | { | |
1102 | register Lisp_Object w; | |
1103 | /* First try for a window that is full-width */ | |
1104 | w = window_loop (GET_LRU_WINDOW, Qt, 0, screens); | |
1105 | if (!NULL (w) && !EQ (w, selected_window)) | |
1106 | return w; | |
1107 | /* If none of them, try the rest */ | |
1108 | return window_loop (GET_LRU_WINDOW, Qnil, 0, screens); | |
1109 | } | |
1110 | ||
1111 | DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 1, 0, | |
1112 | "Return the largest window in area.\n\ | |
1113 | If optional argument SCREENS is t, search all screens. If SCREEN is a\n\ | |
1114 | screen, search only that screen.\n") | |
1115 | (screen) | |
1116 | Lisp_Object screen; | |
1117 | { | |
1118 | return window_loop (GET_LARGEST_WINDOW, Qnil, 0, | |
1119 | screen); | |
1120 | } | |
1121 | ||
1122 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 2, 0, | |
1123 | "Return a window currently displaying BUFFER, or nil if none.\n\ | |
1124 | If optional argument SCREENS is t, search all screens. If SCREEN is a\n\ | |
1125 | screen, search only that screen.\n") | |
1126 | (buffer, screen) | |
1127 | Lisp_Object buffer, screen; | |
1128 | { | |
1129 | buffer = Fget_buffer (buffer); | |
1130 | if (XTYPE (buffer) == Lisp_Buffer) | |
1131 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, screen); | |
1132 | else | |
1133 | return Qnil; | |
1134 | } | |
1135 | ||
1136 | DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows, | |
1137 | 0, 1, "", | |
1138 | "Make WINDOW (or the selected window) fill its screen.\n\ | |
1139 | Only the screen WINDOW is on is affected.") | |
1140 | (window) | |
1141 | Lisp_Object window; | |
1142 | { | |
1143 | struct window *w; | |
1144 | int opoint = point; | |
1145 | struct buffer *obuf = current_buffer; | |
1146 | int top; | |
1147 | ||
1148 | if (NULL (window)) | |
1149 | window = selected_window; | |
1150 | else | |
1151 | CHECK_WINDOW (window, 0); | |
1152 | ||
1153 | w = XWINDOW (window); | |
1154 | top = XFASTINT (w->top); | |
1155 | ||
1156 | window_loop (DELETE_OTHER_WINDOWS, window, 0, WINDOW_SCREEN(w)); | |
1157 | ||
1158 | Fset_buffer (w->buffer); | |
1159 | SET_PT (marker_position (w->start)); | |
1160 | Frecenter (make_number (top)); | |
1161 | ||
1162 | set_buffer_internal (obuf); | |
1163 | SET_PT (opoint); | |
1164 | return Qnil; | |
1165 | } | |
1166 | ||
1167 | DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on, | |
1168 | 1, 1, "bDelete windows on (buffer): ", | |
1169 | "Delete all windows showing BUFFER.") | |
1170 | (buffer) | |
1171 | Lisp_Object buffer; | |
1172 | { | |
1173 | if (!NULL (buffer)) | |
1174 | { | |
1175 | buffer = Fget_buffer (buffer); | |
1176 | CHECK_BUFFER (buffer, 0); | |
1177 | window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, Qt); | |
1178 | } | |
1179 | return Qnil; | |
1180 | } | |
1181 | ||
1182 | DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, | |
1183 | Sreplace_buffer_in_windows, | |
1184 | 1, 1, "bReplace buffer in windows: ", | |
1185 | "Replace BUFFER with some other buffer in all windows showing it.") | |
1186 | (buffer) | |
1187 | Lisp_Object buffer; | |
1188 | { | |
1189 | if (!NULL (buffer)) | |
1190 | { | |
1191 | buffer = Fget_buffer (buffer); | |
1192 | CHECK_BUFFER (buffer, 0); | |
1193 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1194 | } | |
1195 | return Qnil; | |
1196 | } | |
1197 | \f | |
1198 | /* Set the height of WINDOW and all its inferiors. */ | |
1199 | /* Normally the window is deleted if it gets too small. | |
1200 | nodelete nonzero means do not do this. | |
1201 | (The caller should check later and do so if appropriate) */ | |
1202 | ||
1203 | set_window_height (window, height, nodelete) | |
1204 | Lisp_Object window; | |
1205 | int height; | |
1206 | int nodelete; | |
1207 | { | |
1208 | register struct window *w = XWINDOW (window); | |
1209 | register struct window *c; | |
1210 | int oheight = XFASTINT (w->height); | |
1211 | int top, pos, lastbot, opos, lastobot; | |
1212 | Lisp_Object child; | |
1213 | ||
1214 | if (!nodelete | |
1215 | && ! NULL (w->parent) | |
1216 | && height < window_min_height) | |
1217 | { | |
1218 | Fdelete_window (window); | |
1219 | return; | |
1220 | } | |
1221 | ||
1222 | XFASTINT (w->last_modified) = 0; | |
1223 | windows_or_buffers_changed++; | |
1224 | XFASTINT (w->height) = height; | |
1225 | if (!NULL (w->hchild)) | |
1226 | { | |
1227 | for (child = w->hchild; !NULL (child); child = XWINDOW (child)->next) | |
1228 | { | |
1229 | XWINDOW (child)->top = w->top; | |
1230 | set_window_height (child, height, nodelete); | |
1231 | } | |
1232 | } | |
1233 | else if (!NULL (w->vchild)) | |
1234 | { | |
1235 | lastbot = top = XFASTINT (w->top); | |
1236 | lastobot = 0; | |
1237 | for (child = w->vchild; !NULL (child); child = c->next) | |
1238 | { | |
1239 | c = XWINDOW (child); | |
1240 | ||
1241 | opos = lastobot + XFASTINT (c->height); | |
1242 | ||
1243 | XFASTINT (c->top) = lastbot; | |
1244 | ||
1245 | pos = (((opos * height) << 1) + oheight) / (oheight << 1); | |
1246 | ||
1247 | /* Avoid confusion: inhibit deletion of child if becomes too small */ | |
1248 | set_window_height (child, pos + top - lastbot, 1); | |
1249 | ||
1250 | /* Now advance child to next window, | |
1251 | and set lastbot if child was not just deleted. */ | |
1252 | lastbot = pos + top; | |
1253 | lastobot = opos; | |
1254 | } | |
1255 | /* Now delete any children that became too small. */ | |
1256 | if (!nodelete) | |
1257 | for (child = w->vchild; !NULL (child); child = XWINDOW (child)->next) | |
1258 | { | |
1259 | set_window_height (child, XINT (XWINDOW (child)->height), 0); | |
1260 | } | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | /* Recursively set width of WINDOW and its inferiors. */ | |
1265 | ||
1266 | set_window_width (window, width, nodelete) | |
1267 | Lisp_Object window; | |
1268 | int width; | |
1269 | int nodelete; | |
1270 | { | |
1271 | register struct window *w = XWINDOW (window); | |
1272 | register struct window *c; | |
1273 | int owidth = XFASTINT (w->width); | |
1274 | int left, pos, lastright, opos, lastoright; | |
1275 | Lisp_Object child; | |
1276 | ||
1277 | if (!nodelete && width < window_min_width) | |
1278 | { | |
1279 | Fdelete_window (window); | |
1280 | return; | |
1281 | } | |
1282 | ||
1283 | XFASTINT (w->last_modified) = 0; | |
1284 | windows_or_buffers_changed++; | |
1285 | XFASTINT (w->width) = width; | |
1286 | if (!NULL (w->vchild)) | |
1287 | { | |
1288 | for (child = w->vchild; !NULL (child); child = XWINDOW (child)->next) | |
1289 | { | |
1290 | XWINDOW (child)->left = w->left; | |
1291 | set_window_width (child, width, nodelete); | |
1292 | } | |
1293 | } | |
1294 | else if (!NULL (w->hchild)) | |
1295 | { | |
1296 | lastright = left = XFASTINT (w->left); | |
1297 | lastoright = 0; | |
1298 | for (child = w->hchild; !NULL (child); child = c->next) | |
1299 | { | |
1300 | c = XWINDOW (child); | |
1301 | ||
1302 | opos = lastoright + XFASTINT (c->width); | |
1303 | ||
1304 | XFASTINT (c->left) = lastright; | |
1305 | ||
1306 | pos = (((opos * width) << 1) + owidth) / (owidth << 1); | |
1307 | ||
1308 | /* Inhibit deletion for becoming too small */ | |
1309 | set_window_width (child, pos + left - lastright, 1); | |
1310 | ||
1311 | /* Now advance child to next window, | |
1312 | and set lastright if child was not just deleted. */ | |
1313 | lastright = pos + left, lastoright = opos; | |
1314 | } | |
1315 | /* Delete children that became too small */ | |
1316 | if (!nodelete) | |
1317 | for (child = w->hchild; !NULL (child); child = XWINDOW (child)->next) | |
1318 | { | |
1319 | set_window_width (child, XINT (XWINDOW (child)->width), 0); | |
1320 | } | |
1321 | } | |
1322 | } | |
1323 | \f | |
1324 | static int window_select_count; | |
1325 | ||
1326 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0, | |
1327 | "Make WINDOW display BUFFER as its contents.\n\ | |
1328 | BUFFER can be a buffer or buffer name.") | |
1329 | (window, buffer) | |
1330 | register Lisp_Object window, buffer; | |
1331 | { | |
1332 | register Lisp_Object tem; | |
1333 | register struct window *w = decode_window (window); | |
1334 | ||
1335 | buffer = Fget_buffer (buffer); | |
1336 | CHECK_BUFFER (buffer, 1); | |
1337 | ||
1338 | if (NULL (XBUFFER (buffer)->name)) | |
1339 | error ("Attempt to display deleted buffer"); | |
1340 | ||
1341 | tem = w->buffer; | |
1342 | if (NULL (tem)) | |
1343 | error ("Window is deleted"); | |
1344 | else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
1345 | is first being set up. */ | |
1346 | { | |
1347 | if (!NULL (w->dedicated) && !EQ (tem, buffer)) | |
1348 | error ("Window is dedicated to %s\n", tem); | |
1349 | ||
1350 | unshow_buffer (w); | |
1351 | } | |
1352 | ||
1353 | w->buffer = buffer; | |
1354 | Fset_marker (w->pointm, | |
1355 | make_number (BUF_PT (XBUFFER (buffer))), | |
1356 | buffer); | |
1357 | set_marker_restricted (w->start, | |
1358 | make_number (XBUFFER (buffer)->last_window_start), | |
1359 | buffer); | |
1360 | w->start_at_line_beg = Qnil; | |
1361 | XFASTINT (w->last_modified) = 0; | |
1362 | windows_or_buffers_changed++; | |
1363 | if (EQ (window, selected_window)) | |
1364 | Fset_buffer (buffer); | |
1365 | ||
1366 | return Qnil; | |
1367 | } | |
1368 | ||
1369 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0, | |
1370 | "Select WINDOW. Most editing will apply to WINDOW's buffer.\n\ | |
1371 | The main editor command loop selects the buffer of the selected window\n\ | |
1372 | before each command.") | |
1373 | (window) | |
1374 | register Lisp_Object window; | |
1375 | { | |
1376 | register struct window *w; | |
1377 | register struct window *ow = XWINDOW (selected_window); | |
1378 | ||
1379 | CHECK_WINDOW (window, 0); | |
1380 | ||
1381 | w = XWINDOW (window); | |
1382 | ||
1383 | if (NULL (w->buffer)) | |
1384 | error ("Trying to select deleted window or non-leaf window"); | |
1385 | ||
1386 | XFASTINT (w->use_time) = ++window_select_count; | |
1387 | if (EQ (window, selected_window)) | |
1388 | return window; | |
1389 | ||
1390 | Fset_marker (ow->pointm, make_number (BUF_PT (XBUFFER (ow->buffer))), | |
1391 | ow->buffer); | |
1392 | ||
1393 | selected_window = window; | |
1394 | #ifdef MULTI_SCREEN | |
43bad991 | 1395 | if (XSCREEN (WINDOW_SCREEN (w)) != selected_screen) |
7ab12479 JB |
1396 | { |
1397 | XSCREEN (WINDOW_SCREEN (w))->selected_window = window; | |
1398 | Fselect_screen (WINDOW_SCREEN (w), Qnil); | |
1399 | } | |
1400 | else | |
1401 | selected_screen->selected_window = window; | |
1402 | #endif | |
1403 | ||
1404 | record_buffer (w->buffer); | |
1405 | Fset_buffer (w->buffer); | |
1406 | ||
1407 | /* Go to the point recorded in the window. | |
1408 | This is important when the buffer is in more | |
1409 | than one window. It also matters when | |
1410 | redisplay_window has altered point after scrolling, | |
1411 | because it makes the change only in the window. */ | |
1412 | { | |
1413 | register int new_point = marker_position (w->pointm); | |
1414 | if (new_point < BEGV) | |
1415 | SET_PT (BEGV); | |
1416 | if (new_point > ZV) | |
1417 | SET_PT (ZV); | |
1418 | else | |
1419 | SET_PT (new_point); | |
1420 | } | |
1421 | ||
1422 | windows_or_buffers_changed++; | |
1423 | return window; | |
1424 | } | |
1425 | ||
1426 | DEFUN ("display-buffer", Fdisplay_buffer, Sdisplay_buffer, 1, 2, 0, | |
1427 | "Make BUFFER appear in some window but don't select it.\n\ | |
1428 | BUFFER can be a buffer or a buffer name.\n\ | |
1429 | If BUFFER is shown already in some window, just use that one,\n\ | |
1430 | unless the window is the selected window and the optional second\n\ | |
1431 | argument NOT_THIS_WINDOW is non-nil.\n\ | |
1432 | Returns the window displaying BUFFER.") | |
1433 | (buffer, not_this_window) | |
1434 | register Lisp_Object buffer, not_this_window; | |
1435 | { | |
1436 | register Lisp_Object window; | |
1437 | ||
1438 | buffer = Fget_buffer (buffer); | |
1439 | CHECK_BUFFER (buffer, 0); | |
1440 | ||
1441 | if (!NULL (Vdisplay_buffer_function)) | |
1442 | return call2 (Vdisplay_buffer_function, buffer, not_this_window); | |
1443 | ||
1444 | if (NULL (not_this_window) | |
1445 | && XBUFFER (XWINDOW (selected_window)->buffer) == XBUFFER (buffer)) | |
1446 | return selected_window; | |
1447 | ||
1448 | window = Fget_buffer_window (buffer, Qnil); | |
1449 | if (!NULL (window) | |
1450 | && (NULL (not_this_window) || !EQ (window, selected_window))) | |
1451 | return window; | |
1452 | ||
1453 | #ifdef MULTI_SCREEN | |
43bad991 JB |
1454 | /* If there are no screens open that have more than a minibuffer, |
1455 | we need to create a new screen. */ | |
1456 | if (pop_up_screens || last_nonminibuf_screen == 0) | |
7ab12479 JB |
1457 | { |
1458 | window | |
43bad991 | 1459 | = Fscreen_selected_window (call0 (Vpop_up_screen_function)); |
7ab12479 JB |
1460 | Fset_window_buffer (window, buffer); |
1461 | #if 0 | |
43bad991 | 1462 | Fselect_screen (XWINDOW (window)->screen, Qnil); |
7ab12479 JB |
1463 | #endif |
1464 | return window; | |
1465 | } | |
1466 | #endif /* MULTI_SCREEN */ | |
1467 | ||
43bad991 JB |
1468 | if (pop_up_windows |
1469 | #ifdef MULTI_SCREEN | |
1470 | || EQ (SCREEN_ROOT_WINDOW (selected_screen), | |
1471 | SCREEN_MINIBUF_WINDOW (selected_screen)) | |
1472 | #endif | |
1473 | ) | |
7ab12479 | 1474 | { |
43bad991 JB |
1475 | Lisp_Object screens = Qnil; |
1476 | ||
7ab12479 | 1477 | #ifdef MULTI_SCREEN |
43bad991 JB |
1478 | if (EQ (SCREEN_ROOT_WINDOW (selected_screen), |
1479 | SCREEN_MINIBUF_WINDOW (selected_screen))) | |
1480 | XSET (screens, Lisp_Screen, last_nonminibuf_screen); | |
7ab12479 JB |
1481 | #endif |
1482 | /* Don't try to create a window if would get an error */ | |
1483 | if (split_height_threshold < window_min_height << 1) | |
1484 | split_height_threshold = window_min_height << 1; | |
1485 | ||
1486 | window = Fget_largest_window (screens); | |
1487 | ||
1488 | if (!NULL (window) | |
1489 | && window_height (window) >= split_height_threshold | |
1490 | && | |
1491 | (XFASTINT (XWINDOW (window)->width) | |
1492 | == SCREEN_WIDTH (XSCREEN (WINDOW_SCREEN (XWINDOW (window)))))) | |
1493 | window = Fsplit_window (window, Qnil, Qnil); | |
1494 | else | |
1495 | { | |
1496 | window = Fget_lru_window (screens); | |
1497 | if ((EQ (window, selected_window) | |
1498 | || EQ (XWINDOW (window)->parent, Qnil)) | |
1499 | && window_height (window) >= window_min_height << 1) | |
1500 | window = Fsplit_window (window, Qnil, Qnil); | |
1501 | } | |
1502 | } | |
1503 | else | |
1504 | window = Fget_lru_window (Qnil); | |
1505 | ||
1506 | Fset_window_buffer (window, buffer); | |
1507 | return window; | |
1508 | } | |
1509 | ||
1510 | void | |
1511 | temp_output_buffer_show (buf) | |
1512 | register Lisp_Object buf; | |
1513 | { | |
1514 | register struct buffer *old = current_buffer; | |
1515 | register Lisp_Object window; | |
1516 | register struct window *w; | |
1517 | ||
1518 | Fset_buffer (buf); | |
1519 | XBUFFER (buf)->save_modified = MODIFF; | |
1520 | BEGV = BEG; | |
1521 | ZV = Z; | |
1522 | SET_PT (BEG); | |
1523 | clip_changed = 1; | |
1524 | set_buffer_internal (old); | |
1525 | ||
1526 | if (!EQ (Vtemp_buffer_show_function, Qnil)) | |
1527 | call1 (Vtemp_buffer_show_function, buf); | |
1528 | else | |
1529 | { | |
1530 | window = Fdisplay_buffer (buf, Qnil); | |
1531 | ||
1532 | #ifdef MULTI_SCREEN | |
1533 | if (XSCREEN (XWINDOW (window)->screen) != selected_screen) | |
1534 | Fmake_screen_visible (XWINDOW (window)->screen); | |
1535 | #endif /* MULTI_SCREEN */ | |
1536 | Vminibuf_scroll_window = window; | |
1537 | w = XWINDOW (window); | |
1538 | XFASTINT (w->hscroll) = 0; | |
1539 | set_marker_restricted (w->start, make_number (1), buf); | |
1540 | set_marker_restricted (w->pointm, make_number (1), buf); | |
1541 | } | |
1542 | } | |
1543 | \f | |
1544 | static | |
1545 | make_dummy_parent (window) | |
1546 | Lisp_Object window; | |
1547 | { | |
1548 | register Lisp_Object old, new; | |
1549 | register struct window *o, *p; | |
1550 | ||
1551 | old = window; | |
1552 | XSETTYPE (old, Lisp_Vector); | |
1553 | new = Fcopy_sequence (old); | |
1554 | XSETTYPE (new, Lisp_Window); | |
1555 | ||
1556 | o = XWINDOW (old); | |
1557 | p = XWINDOW (new); | |
1558 | XFASTINT (p->sequence_number) = ++sequence_number; | |
1559 | ||
1560 | /* Put new into window structure in place of window */ | |
1561 | replace_window (window, new); | |
1562 | ||
1563 | o->next = Qnil; | |
1564 | o->prev = Qnil; | |
1565 | o->vchild = Qnil; | |
1566 | o->hchild = Qnil; | |
1567 | o->parent = new; | |
1568 | ||
1569 | p->start = Qnil; | |
1570 | p->pointm = Qnil; | |
1571 | p->buffer = Qnil; | |
1572 | } | |
1573 | ||
1574 | DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "", | |
1575 | "Split WINDOW, putting SIZE lines in the first of the pair.\n\ | |
1576 | WINDOW defaults to selected one and SIZE to half its size.\n\ | |
1577 | If optional third arg HOR-FLAG is non-nil, split side by side\n\ | |
1578 | and put SIZE columns in the first of the pair.") | |
1579 | (window, chsize, horflag) | |
1580 | Lisp_Object window, chsize, horflag; | |
1581 | { | |
1582 | register Lisp_Object new; | |
1583 | register struct window *o, *p; | |
1584 | register int size; | |
1585 | ||
1586 | if (NULL (window)) | |
1587 | window = selected_window; | |
1588 | else | |
1589 | CHECK_WINDOW (window, 0); | |
1590 | ||
1591 | o = XWINDOW (window); | |
1592 | ||
1593 | if (NULL (chsize)) | |
1594 | { | |
1595 | if (!NULL (horflag)) | |
1596 | /* Round odd size up, since this is for the left-hand window, | |
1597 | and it will lose a column for the separators. */ | |
1598 | size = ((XFASTINT (o->width) + 1) & -2) >> 1; | |
1599 | else | |
1600 | size = XFASTINT (o->height) >> 1; | |
1601 | } | |
1602 | else | |
1603 | { | |
1604 | CHECK_NUMBER (chsize, 1); | |
1605 | size = XINT (chsize); | |
1606 | } | |
1607 | ||
1608 | if (MINI_WINDOW_P (o)) | |
1609 | error ("Attempt to split minibuffer window"); | |
1610 | else if (SCREEN_NO_SPLIT_P (XSCREEN (WINDOW_SCREEN (o)))) | |
1611 | error ("Attempt to split unsplittable screen"); | |
1612 | ||
1613 | /* Smaller values might permit a crash. */ | |
1614 | if (window_min_width < 2) | |
1615 | window_min_width = 2; | |
1616 | if (window_min_height < 2) | |
1617 | window_min_height = 2; | |
1618 | ||
1619 | if (NULL (horflag)) | |
1620 | { | |
1621 | if (size < window_min_height | |
1622 | || size + window_min_height > XFASTINT (o->height)) | |
1623 | args_out_of_range_3 (window, chsize, horflag); | |
1624 | if (NULL (o->parent) | |
1625 | || NULL (XWINDOW (o->parent)->vchild)) | |
1626 | { | |
1627 | make_dummy_parent (window); | |
1628 | new = o->parent; | |
1629 | XWINDOW (new)->vchild = window; | |
1630 | } | |
1631 | } | |
1632 | else | |
1633 | { | |
1634 | if (size < window_min_width | |
1635 | || size + window_min_width > XFASTINT (o->width)) | |
1636 | args_out_of_range_3 (window, chsize, horflag); | |
1637 | if (NULL (o->parent) | |
1638 | || NULL (XWINDOW (o->parent)->hchild)) | |
1639 | { | |
1640 | make_dummy_parent (window); | |
1641 | new = o->parent; | |
1642 | XWINDOW (new)->hchild = window; | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | /* Now we know that window's parent is a vertical combination | |
1647 | if we are dividing vertically, or a horizontal combination | |
1648 | if we are making side-by-side windows */ | |
1649 | ||
1650 | windows_or_buffers_changed++; | |
1651 | new = make_window (); | |
1652 | p = XWINDOW (new); | |
1653 | ||
1654 | p->screen = o->screen; | |
1655 | p->next = o->next; | |
1656 | if (!NULL (p->next)) | |
1657 | XWINDOW (p->next)->prev = new; | |
1658 | p->prev = window; | |
1659 | o->next = new; | |
1660 | p->parent = o->parent; | |
1661 | p->buffer = Qt; | |
1662 | ||
1663 | Fset_window_buffer (new, o->buffer); | |
1664 | ||
1665 | /* Apportion the available screen space among the two new windows */ | |
1666 | ||
1667 | if (!NULL (horflag)) | |
1668 | { | |
1669 | p->height = o->height; | |
1670 | p->top = o->top; | |
1671 | XFASTINT (p->width) = XFASTINT (o->width) - size; | |
1672 | XFASTINT (o->width) = size; | |
1673 | XFASTINT (p->left) = XFASTINT (o->left) + size; | |
1674 | } | |
1675 | else | |
1676 | { | |
1677 | p->left = o->left; | |
1678 | p->width = o->width; | |
1679 | XFASTINT (p->height) = XFASTINT (o->height) - size; | |
1680 | XFASTINT (o->height) = size; | |
1681 | XFASTINT (p->top) = XFASTINT (o->top) + size; | |
1682 | } | |
1683 | ||
1684 | return new; | |
1685 | } | |
1686 | \f | |
1687 | DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p", | |
1688 | "Make current window ARG lines bigger.\n\ | |
1689 | From program, optional second arg non-nil means grow sideways ARG columns.") | |
1690 | (n, side) | |
1691 | register Lisp_Object n, side; | |
1692 | { | |
1693 | CHECK_NUMBER (n, 0); | |
1694 | change_window_height (XINT (n), !NULL (side)); | |
1695 | return Qnil; | |
1696 | } | |
1697 | ||
1698 | DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p", | |
1699 | "Make current window ARG lines smaller.\n\ | |
1700 | From program, optional second arg non-nil means shrink sideways ARG columns.") | |
1701 | (n, side) | |
1702 | register Lisp_Object n, side; | |
1703 | { | |
1704 | CHECK_NUMBER (n, 0); | |
1705 | change_window_height (-XINT (n), !NULL (side)); | |
1706 | return Qnil; | |
1707 | } | |
1708 | ||
1709 | int | |
1710 | window_height (window) | |
1711 | Lisp_Object window; | |
1712 | { | |
1713 | register struct window *p = XWINDOW (window); | |
1714 | return XFASTINT (p->height); | |
1715 | } | |
1716 | ||
1717 | int | |
1718 | window_width (window) | |
1719 | Lisp_Object window; | |
1720 | { | |
1721 | register struct window *p = XWINDOW (window); | |
1722 | return XFASTINT (p->width); | |
1723 | } | |
1724 | ||
1725 | #define MINSIZE(w) \ | |
1726 | (widthflag ? window_min_width : window_min_height) | |
1727 | ||
1728 | #define CURBEG(w) \ | |
1729 | *(widthflag ? (int *) &(w)->left : (int *) &(w)->top) | |
1730 | ||
1731 | #define CURSIZE(w) \ | |
1732 | *(widthflag ? (int *) &(w)->width : (int *) &(w)->height) | |
1733 | ||
1734 | /* Unlike set_window_height, this function | |
1735 | also changes the heights of the siblings so as to | |
1736 | keep everything consistent. */ | |
1737 | ||
1738 | change_window_height (delta, widthflag) | |
1739 | register int delta; | |
1740 | int widthflag; | |
1741 | { | |
1742 | register Lisp_Object parent; | |
1743 | Lisp_Object window; | |
1744 | register struct window *p; | |
1745 | int *sizep; | |
1746 | int (*sizefun) () = widthflag ? window_width : window_height; | |
1747 | register int (*setsizefun) () = (widthflag | |
1748 | ? set_window_width | |
1749 | : set_window_height); | |
1750 | ||
1751 | /* Smaller values might permit a crash. */ | |
1752 | if (window_min_width < 2) | |
1753 | window_min_width = 2; | |
1754 | if (window_min_height < 2) | |
1755 | window_min_height = 2; | |
1756 | ||
1757 | window = selected_window; | |
1758 | while (1) | |
1759 | { | |
1760 | p = XWINDOW (window); | |
1761 | parent = p->parent; | |
1762 | if (NULL (parent)) | |
1763 | { | |
1764 | if (widthflag) | |
1765 | error ("No other window to side of this one"); | |
1766 | break; | |
1767 | } | |
1768 | if (widthflag ? !NULL (XWINDOW (parent)->hchild) | |
1769 | : !NULL (XWINDOW (parent)->vchild)) | |
1770 | break; | |
1771 | window = parent; | |
1772 | } | |
1773 | ||
1774 | sizep = &CURSIZE (p); | |
1775 | ||
1776 | if (*sizep + delta < MINSIZE (p) | |
1777 | && !NULL (XWINDOW (window)->parent)) | |
1778 | { | |
1779 | Fdelete_window (window); | |
1780 | return; | |
1781 | } | |
1782 | ||
1783 | { | |
1784 | register int maxdelta; | |
1785 | register Lisp_Object tem; | |
1786 | ||
1787 | maxdelta = (!NULL (parent) ? (*sizefun) (parent) - *sizep | |
1788 | : (tem = (!NULL (p->next) ? p->next : p->prev), | |
1789 | (*sizefun) (tem) - MINSIZE (tem))); | |
1790 | ||
1791 | if (delta > maxdelta) | |
1792 | /* This case traps trying to make the minibuffer | |
1793 | the full screen, or make the only window aside from the | |
1794 | minibuffer the full screen. */ | |
1795 | delta = maxdelta; | |
1796 | } | |
1797 | ||
1798 | if (!NULL (p->next) && | |
1799 | (*sizefun) (p->next) - delta >= MINSIZE (p->next)) | |
1800 | { | |
1801 | (*setsizefun) (p->next, (*sizefun) (p->next) - delta, 0); | |
1802 | (*setsizefun) (window, *sizep + delta, 0); | |
1803 | CURBEG (XWINDOW (p->next)) += delta; | |
1804 | /* This does not change size of p->next, | |
1805 | but it propagates the new top edge to its children */ | |
1806 | (*setsizefun) (p->next, (*sizefun) (p->next), 0); | |
1807 | } | |
1808 | else if (!NULL (p->prev) && | |
1809 | (*sizefun) (p->prev) - delta >= MINSIZE (p->prev)) | |
1810 | { | |
1811 | (*setsizefun) (p->prev, (*sizefun) (p->prev) - delta, 0); | |
1812 | CURBEG (p) -= delta; | |
1813 | (*setsizefun) (window, *sizep + delta, 0); | |
1814 | } | |
1815 | else | |
1816 | { | |
1817 | register int delta1; | |
1818 | register int opht = (*sizefun) (parent); | |
1819 | ||
1820 | /* If trying to grow this window to or beyond size of the parent, | |
1821 | make delta1 so big that, on shrinking back down, | |
1822 | all the siblings end up with less than one line and are deleted. */ | |
1823 | if (opht <= *sizep + delta) | |
1824 | delta1 = opht * opht * 2; | |
1825 | /* Otherwise, make delta1 just right so that if we add delta1 | |
1826 | lines to this window and to the parent, and then shrink | |
1827 | the parent back to its original size, the new proportional | |
1828 | size of this window will increase by delta. */ | |
1829 | else | |
1830 | delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
1831 | ||
1832 | /* Add delta1 lines or columns to this window, and to the parent, | |
1833 | keeping things consistent while not affecting siblings. */ | |
1834 | CURSIZE (XWINDOW (parent)) = opht + delta1; | |
1835 | (*setsizefun) (window, *sizep + delta1, 0); | |
1836 | ||
1837 | /* Squeeze out delta1 lines or columns from our parent, | |
1838 | shriking this window and siblings proportionately. | |
1839 | This brings parent back to correct size. | |
1840 | Delta1 was calculated so this makes this window the desired size, | |
1841 | taking it all out of the siblings. */ | |
1842 | (*setsizefun) (parent, opht, 0); | |
1843 | } | |
1844 | ||
1845 | XFASTINT (p->last_modified) = 0; | |
1846 | } | |
1847 | #undef MINSIZE | |
1848 | #undef CURBEG | |
1849 | #undef CURSIZE | |
1850 | ||
1851 | \f | |
1852 | /* Return number of lines of text (not counting mode line) in W. */ | |
1853 | ||
1854 | int | |
1855 | window_internal_height (w) | |
1856 | struct window *w; | |
1857 | { | |
1858 | int ht = XFASTINT (w->height); | |
1859 | ||
1860 | if (MINI_WINDOW_P (w)) | |
1861 | return ht; | |
1862 | ||
1863 | if (!NULL (w->parent) || !NULL (w->vchild) || !NULL (w->hchild) | |
1864 | || !NULL (w->next) || !NULL (w->prev) | |
1865 | || SCREEN_WANTS_MODELINE_P (XSCREEN (WINDOW_SCREEN (w)))) | |
1866 | return ht - 1; | |
1867 | ||
1868 | return ht; | |
1869 | } | |
1870 | ||
1871 | /* Scroll contents of window WINDOW up N lines. */ | |
1872 | ||
1873 | void | |
1874 | window_scroll (window, n) | |
1875 | Lisp_Object window; | |
1876 | int n; | |
1877 | { | |
1878 | register struct window *w = XWINDOW (window); | |
1879 | register int opoint = point; | |
1880 | register int pos; | |
1881 | register int ht = window_internal_height (w); | |
1882 | register Lisp_Object tem; | |
1883 | int lose; | |
1884 | Lisp_Object bolp, nmoved; | |
1885 | ||
1886 | XFASTINT (tem) = point; | |
1887 | tem = Fpos_visible_in_window_p (tem, window); | |
1888 | ||
1889 | if (NULL (tem)) | |
1890 | { | |
1891 | Fvertical_motion (make_number (- ht / 2)); | |
1892 | XFASTINT (tem) = point; | |
1893 | Fset_marker (w->start, tem, w->buffer); | |
1894 | w->force_start = Qt; | |
1895 | } | |
1896 | ||
1897 | SET_PT (marker_position (w->start)); | |
1898 | lose = n < 0 && point == BEGV; | |
1899 | Fvertical_motion (make_number (n)); | |
1900 | pos = point; | |
1901 | bolp = Fbolp (); | |
1902 | SET_PT (opoint); | |
1903 | ||
1904 | if (lose) | |
1905 | Fsignal (Qbeginning_of_buffer, Qnil); | |
1906 | ||
1907 | if (pos < ZV) | |
1908 | #if 0 | |
1909 | /* Allow scrolling to an empty screen (end of buffer) | |
1910 | if that is exactly how far we wanted to go. */ | |
1911 | || XINT (nmoved) == n) | |
1912 | #endif | |
1913 | { | |
1914 | set_marker_restricted (w->start, make_number (pos), w->buffer); | |
1915 | w->start_at_line_beg = bolp; | |
1916 | w->update_mode_line = Qt; | |
1917 | XFASTINT (w->last_modified) = 0; | |
1918 | if (pos > opoint) | |
1919 | SET_PT (pos); | |
1920 | if (n < 0) | |
1921 | { | |
1922 | SET_PT (pos); | |
1923 | tem = Fvertical_motion (make_number (ht)); | |
1924 | if (point > opoint || XFASTINT (tem) < ht) | |
1925 | SET_PT (opoint); | |
1926 | else | |
1927 | Fvertical_motion (make_number (-1)); | |
1928 | } | |
1929 | } | |
1930 | else | |
1931 | Fsignal (Qend_of_buffer, Qnil); | |
1932 | } | |
1933 | \f | |
1934 | /* This is the guts of Fscroll_up and Fscroll_down. */ | |
1935 | ||
1936 | static void | |
1937 | scroll_command (n, direction) | |
1938 | register Lisp_Object n; | |
1939 | int direction; | |
1940 | { | |
1941 | register int defalt; | |
1942 | int count = specpdl_ptr - specpdl; | |
1943 | ||
1944 | /* If selected window's buffer isn't current, make it current for the moment. | |
1945 | But don't screw up if window_scroll gets an error. */ | |
1946 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1947 | { | |
1948 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
1949 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
1950 | } | |
1951 | ||
1952 | defalt = (window_internal_height (XWINDOW (selected_window)) | |
1953 | - next_screen_context_lines); | |
1954 | defalt = direction * (defalt < 1 ? 1 : defalt); | |
1955 | ||
1956 | if (NULL (n)) | |
1957 | window_scroll (selected_window, defalt); | |
1958 | else if (EQ (n, Qminus)) | |
1959 | window_scroll (selected_window, - defalt); | |
1960 | else | |
1961 | { | |
1962 | n = Fprefix_numeric_value (n); | |
1963 | window_scroll (selected_window, XINT (n) * direction); | |
1964 | } | |
1965 | ||
1966 | unbind_to (count, Qnil); | |
1967 | } | |
1968 | ||
1969 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "P", | |
1970 | "Scroll text of current window upward ARG lines; or near full screen if no ARG.\n\ | |
1971 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
1972 | When calling from a program, supply a number as argument or nil.") | |
1973 | (n) | |
1974 | Lisp_Object n; | |
1975 | { | |
1976 | scroll_command (n, 1); | |
1977 | return Qnil; | |
1978 | } | |
1979 | ||
1980 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "P", | |
1981 | "Scroll text of current window downward ARG lines; or near full screen if no ARG.\n\ | |
1982 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
1983 | When calling from a program, supply a number as argument or nil.") | |
1984 | (n) | |
1985 | Lisp_Object n; | |
1986 | { | |
1987 | scroll_command (n, -1); | |
1988 | return Qnil; | |
1989 | } | |
1990 | ||
1991 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
1992 | "Scroll text of next window upward ARG lines; or near full screen if no ARG.\n\ | |
1993 | The next window is the one below the current one; or the one at the top\n\ | |
1994 | if the current one is at the bottom.\n\ | |
1995 | When calling from a program, supply a number as argument or nil.\n\ | |
1996 | \n\ | |
1997 | If in the minibuffer, `minibuf-scroll-window' if non-nil\n\ | |
1998 | specifies the window to scroll.\n\ | |
1999 | If `other-window-scroll-buffer' is non-nil, scroll the window\n\ | |
2000 | showing that buffer, popping the buffer up if necessary.") | |
2001 | (n) | |
2002 | register Lisp_Object n; | |
2003 | { | |
2004 | register Lisp_Object window; | |
2005 | register int ht; | |
2006 | register struct window *w; | |
2007 | register int count = specpdl_ptr - specpdl; | |
2008 | ||
2009 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
2010 | && !NULL (Vminibuf_scroll_window)) | |
2011 | window = Vminibuf_scroll_window; | |
2012 | /* If buffer is specified, scroll that buffer. */ | |
2013 | else if (!NULL (Vother_window_scroll_buffer)) | |
2014 | { | |
2015 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
2016 | if (NULL (window)) | |
2017 | window = Fdisplay_buffer (Vother_window_scroll_buffer, Qt); | |
2018 | } | |
2019 | else | |
2020 | /* Nothing specified; pick a neighboring window. */ | |
2021 | window = Fnext_window (selected_window, Qnil, Qt); | |
2022 | CHECK_WINDOW (window, 0); | |
2023 | ||
2024 | if (EQ (window, selected_window)) | |
2025 | error ("There is no other window"); | |
2026 | ||
2027 | w = XWINDOW (window); | |
2028 | ht = window_internal_height (w); | |
2029 | ||
2030 | /* Don't screw up if window_scroll gets an error. */ | |
2031 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2032 | ||
2033 | Fset_buffer (w->buffer); | |
2034 | SET_PT (marker_position (w->pointm)); | |
2035 | ||
2036 | if (NULL (n)) | |
2037 | window_scroll (window, ht - next_screen_context_lines); | |
2038 | else if (EQ (n, Qminus)) | |
2039 | window_scroll (window, next_screen_context_lines - ht); | |
2040 | else | |
2041 | { | |
2042 | if (XTYPE (n) == Lisp_Cons) | |
2043 | n = Fcar (n); | |
2044 | CHECK_NUMBER (n, 0); | |
2045 | window_scroll (window, XINT (n)); | |
2046 | } | |
2047 | ||
2048 | Fset_marker (w->pointm, make_number (point), Qnil); | |
2049 | unbind_to (count); | |
2050 | ||
2051 | return Qnil; | |
2052 | } | |
2053 | \f | |
2054 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 1, 1, "P", | |
2055 | "Scroll selected window display ARG columns left.\n\ | |
2056 | Default for ARG is window width minus 2.") | |
2057 | (arg) | |
2058 | register Lisp_Object arg; | |
2059 | { | |
2060 | ||
2061 | if (NULL (arg)) | |
2062 | XFASTINT (arg) = XFASTINT (XWINDOW (selected_window)->width) - 2; | |
2063 | else | |
2064 | arg = Fprefix_numeric_value (arg); | |
2065 | ||
2066 | return | |
2067 | Fset_window_hscroll (selected_window, | |
2068 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2069 | + XINT (arg))); | |
2070 | } | |
2071 | ||
2072 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 1, 1, "P", | |
2073 | "Scroll selected window display ARG columns right.\n\ | |
2074 | Default for ARG is window width minus 2.") | |
2075 | (arg) | |
2076 | register Lisp_Object arg; | |
2077 | { | |
2078 | if (NULL (arg)) | |
2079 | XFASTINT (arg) = XFASTINT (XWINDOW (selected_window)->width) - 2; | |
2080 | else | |
2081 | arg = Fprefix_numeric_value (arg); | |
2082 | ||
2083 | return | |
2084 | Fset_window_hscroll (selected_window, | |
2085 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2086 | - XINT (arg))); | |
2087 | } | |
2088 | ||
2089 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", | |
2090 | "Center point in window and redisplay screen. With ARG, put point on line ARG.\n\ | |
2091 | The desired position of point is always relative to the current window.\n\ | |
2092 | Just C-u as prefix means put point in the center of the screen.\n\ | |
2093 | No arg (i.e., it is nil) erases the entire screen and then\n\ | |
2094 | redraws with point in the center.") | |
2095 | (n) | |
2096 | register Lisp_Object n; | |
2097 | { | |
2098 | register struct window *w = XWINDOW (selected_window); | |
2099 | register int ht = window_internal_height (w); | |
2100 | register int opoint = point; | |
2101 | ||
2102 | if (NULL (n)) | |
2103 | { | |
2104 | extern int screen_garbaged; | |
2105 | ||
2106 | SET_SCREEN_GARBAGED (XSCREEN (WINDOW_SCREEN (w))); | |
2107 | XFASTINT (n) = ht / 2; | |
2108 | } | |
2109 | else if (XTYPE (n) == Lisp_Cons) /* Just C-u. */ | |
2110 | { | |
2111 | XFASTINT (n) = ht / 2; | |
2112 | } | |
2113 | else | |
2114 | { | |
2115 | n = Fprefix_numeric_value (n); | |
2116 | CHECK_NUMBER (n, 0); | |
2117 | } | |
2118 | ||
2119 | if (XINT (n) < 0) | |
2120 | XSETINT (n, XINT (n) + ht); | |
2121 | ||
2122 | XSETINT (n, - XINT (n)); | |
2123 | ||
2124 | Fvertical_motion (n); | |
2125 | Fset_marker (w->start, make_number (point), w->buffer); | |
2126 | w->start_at_line_beg = Fbolp (); | |
2127 | ||
2128 | SET_PT (opoint); | |
2129 | w->force_start = Qt; | |
2130 | ||
2131 | return Qnil; | |
2132 | } | |
2133 | \f | |
2134 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
2135 | 1, 1, "P", | |
2136 | "Position point relative to window.\n\ | |
2137 | With no argument, position text at center of window.\n\ | |
2138 | An argument specifies screen line; zero means top of window,\n\ | |
2139 | negative means relative to bottom of window.") | |
2140 | (arg) | |
2141 | register Lisp_Object arg; | |
2142 | { | |
2143 | register struct window *w = XWINDOW (selected_window); | |
2144 | register int height = window_internal_height (w); | |
2145 | register int start; | |
2146 | ||
2147 | if (NULL (arg)) | |
2148 | XFASTINT (arg) = height / 2; | |
2149 | else | |
2150 | { | |
2151 | arg = Fprefix_numeric_value (arg); | |
2152 | if (XINT (arg) < 0) | |
2153 | XSETINT (arg, XINT (arg) + height); | |
2154 | } | |
2155 | ||
2156 | start = marker_position (w->start); | |
2157 | if (start < BEGV || start > ZV) | |
2158 | { | |
2159 | Fvertical_motion (make_number (- height / 2)); | |
2160 | Fset_marker (w->start, make_number (point), w->buffer); | |
2161 | w->start_at_line_beg = Fbolp (); | |
2162 | w->force_start = Qt; | |
2163 | } | |
2164 | else | |
2165 | SET_PT (start); | |
2166 | ||
2167 | return Fvertical_motion (arg); | |
2168 | } | |
2169 | \f | |
2170 | struct save_window_data | |
2171 | { | |
2172 | int size_from_Lisp_Vector_struct; | |
2173 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
2174 | Lisp_Object screen_width, screen_height; | |
2175 | Lisp_Object current_window; | |
2176 | Lisp_Object current_buffer; | |
2177 | Lisp_Object minibuf_scroll_window; | |
2178 | Lisp_Object root_window; | |
2179 | /* A vector, interpreted as a struct saved_window */ | |
2180 | Lisp_Object saved_windows; | |
2181 | }; | |
2182 | #define SAVE_WINDOW_DATA_SIZE 7 /* Arg to Fmake_vector */ | |
2183 | ||
2184 | /* This is saved as a Lisp_Vector */ | |
2185 | struct saved_window | |
2186 | { | |
2187 | /* these first two must agree with struct Lisp_Vector in lisp.h */ | |
2188 | int size_from_Lisp_Vector_struct; | |
2189 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
2190 | ||
2191 | Lisp_Object window; | |
2192 | Lisp_Object buffer, start, pointm, mark; | |
2193 | Lisp_Object left, top, width, height, hscroll; | |
2194 | Lisp_Object parent, prev; | |
2195 | Lisp_Object start_at_line_beg; | |
2196 | Lisp_Object display_table; | |
2197 | }; | |
2198 | #define SAVED_WINDOW_VECTOR_SIZE 14 /* Arg to Fmake_vector */ | |
2199 | ||
2200 | #define SAVED_WINDOW_N(swv,n) \ | |
2201 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) | |
2202 | ||
2203 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
2204 | "T if OBJECT is a window-configration object.") | |
2205 | (obj) | |
2206 | Lisp_Object obj; | |
2207 | { | |
2208 | if (XTYPE (obj) == Lisp_Window_Configuration) | |
2209 | return Qt; | |
2210 | return Qnil; | |
2211 | } | |
2212 | ||
2213 | ||
2214 | DEFUN ("set-window-configuration", | |
2215 | Fset_window_configuration, Sset_window_configuration, | |
2216 | 1, 1, 0, | |
2217 | "Set the configuration of windows and buffers as specified by CONFIGURATION.\n\ | |
2218 | CONFIGURATION must be a value previously returned\n\ | |
2219 | by `current-window-configuration' (which see).") | |
2220 | (arg) | |
2221 | Lisp_Object arg; | |
2222 | { | |
2223 | register struct window *w; | |
2224 | register struct save_window_data *data; | |
2225 | struct Lisp_Vector *saved_windows; | |
2226 | register struct saved_window *p; | |
2227 | register Lisp_Object tem; | |
2228 | Lisp_Object new_current_buffer; | |
2229 | int k; | |
43bad991 | 2230 | SCREEN_PTR s; |
7ab12479 JB |
2231 | |
2232 | while (XTYPE (arg) != Lisp_Window_Configuration) | |
2233 | { | |
2234 | arg = wrong_type_argument (intern ("window-configuration-p"), arg); | |
2235 | } | |
2236 | ||
2237 | data = (struct save_window_data *) XVECTOR (arg); | |
2238 | saved_windows = XVECTOR (data->saved_windows); | |
2239 | ||
2240 | s = XSCREEN (XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->screen); | |
2241 | ||
2242 | if (XFASTINT (data->screen_height) != SCREEN_HEIGHT (s) | |
2243 | || XFASTINT (data->screen_width) != SCREEN_WIDTH (s)) | |
2244 | { | |
2245 | /* Presumably something clever could be done. | |
2246 | However, it doesn't seem worth the effort */ | |
2247 | error ("Screen size %dx%d in saved window configuration mismatches screen.", | |
2248 | XFASTINT (data->screen_height), | |
2249 | XFASTINT (data->screen_width)); | |
2250 | } | |
2251 | ||
2252 | windows_or_buffers_changed++; | |
2253 | new_current_buffer = data->current_buffer; | |
2254 | if (NULL (XBUFFER (new_current_buffer)->name)) | |
2255 | new_current_buffer = Qnil; | |
2256 | ||
2257 | /* Mark all windows now on screen as "deleted". | |
2258 | Restoring the new configuration "undeletes" any that are in it. */ | |
2259 | ||
43bad991 | 2260 | delete_all_subwindows (XWINDOW (SCREEN_ROOT_WINDOW (s))); |
7ab12479 JB |
2261 | #if 0 |
2262 | /* This loses when the minibuf screen is not s. */ | |
2263 | delete_all_subwindows (XWINDOW (XWINDOW (minibuf_window)->prev)); | |
2264 | #endif | |
2265 | ||
2266 | for (k = 0; k < saved_windows->size; k++) | |
2267 | { | |
2268 | p = SAVED_WINDOW_N (saved_windows, k); | |
2269 | w = XWINDOW (p->window); | |
2270 | w->next = Qnil; | |
2271 | ||
2272 | if (!NULL (p->parent)) | |
2273 | w->parent = SAVED_WINDOW_N (saved_windows, XFASTINT (p->parent))->window; | |
2274 | else | |
2275 | w->parent = Qnil; | |
2276 | ||
2277 | if (!NULL (p->prev)) | |
2278 | { | |
2279 | w->prev = SAVED_WINDOW_N (saved_windows, XFASTINT (p->prev))->window; | |
2280 | #ifdef MULTI_SCREEN | |
2281 | /* This is true for a minibuffer-only screen. */ | |
2282 | if (w->mini_p && EQ (w->prev, p->window)) | |
2283 | w->next = Qnil; | |
2284 | else | |
2285 | #endif /* MULTI_SCREEN */ | |
2286 | XWINDOW (w->prev)->next = p->window; | |
2287 | } | |
2288 | else | |
2289 | { | |
2290 | w->prev = Qnil; | |
2291 | if (!NULL (w->parent)) | |
2292 | { | |
2293 | if (EQ (p->width, XWINDOW (w->parent)->width)) | |
2294 | { | |
2295 | XWINDOW (w->parent)->vchild = p->window; | |
2296 | XWINDOW (w->parent)->hchild = Qnil; | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | XWINDOW (w->parent)->hchild = p->window; | |
2301 | XWINDOW (w->parent)->vchild = Qnil; | |
2302 | } | |
2303 | } | |
2304 | } | |
2305 | w->left = p->left; | |
2306 | w->top = p->top; | |
2307 | w->width = p->width; | |
2308 | w->height = p->height; | |
2309 | w->hscroll = p->hscroll; | |
2310 | w->display_table = p->display_table; | |
2311 | XFASTINT (w->last_modified) = 0; | |
2312 | ||
2313 | /* Reinstall the saved buffer and pointers into it. */ | |
2314 | if (NULL (p->buffer)) | |
2315 | w->buffer = p->buffer; | |
2316 | else | |
2317 | { | |
2318 | if (!NULL (XBUFFER (p->buffer)->name)) | |
2319 | /* If saved buffer is alive, install it. */ | |
2320 | { | |
2321 | w->buffer = p->buffer; | |
2322 | w->start_at_line_beg = p->start_at_line_beg; | |
2323 | set_marker_restricted (w->start, Fmarker_position (p->start), w->buffer); | |
2324 | set_marker_restricted (w->pointm, Fmarker_position (p->pointm), w->buffer); | |
2325 | Fset_marker (XBUFFER (w->buffer)->mark, | |
2326 | Fmarker_position (p->mark), w->buffer); | |
2327 | ||
2328 | if (!EQ (p->buffer, new_current_buffer) && | |
2329 | XBUFFER (p->buffer) == current_buffer) | |
2330 | Fgoto_char (w->pointm); | |
2331 | } | |
2332 | else if (NULL (XBUFFER (w->buffer)->name)) | |
2333 | /* Else if window's old buffer is dead too, get a live one. */ | |
2334 | { | |
2335 | w->buffer = Fcdr (Fcar (Vbuffer_alist)); | |
2336 | /* This will set the markers to beginning of visible range. */ | |
2337 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
2338 | set_marker_restricted (w->pointm, make_number (0), w->buffer); | |
2339 | w->start_at_line_beg = Qt; | |
2340 | } | |
2341 | else | |
2342 | /* Keeping window's old buffer; make sure the markers are real. */ | |
2343 | /* Else if window's old buffer is dead too, get a live one. */ | |
2344 | { | |
2345 | /* Set window markers at start of visible range. */ | |
2346 | if (XMARKER (w->start)->buffer == 0) | |
2347 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
2348 | if (XMARKER (w->pointm)->buffer == 0) | |
2349 | set_marker_restricted (w->pointm, | |
2350 | make_number (BUF_PT (XBUFFER (w->buffer))), | |
2351 | w->buffer); | |
2352 | w->start_at_line_beg = Qt; | |
2353 | } | |
2354 | } | |
2355 | } | |
2356 | ||
2357 | SCREEN_ROOT_WINDOW (s) = data->root_window; | |
2358 | ||
2359 | #ifdef MULTI_SCREEN | |
2360 | if (s != selected_screen && ! SCREEN_IS_TERMCAP (s)) | |
2361 | Fselect_screen (WINDOW_SCREEN (XWINDOW (data->root_window)), Qnil); | |
2362 | #endif | |
2363 | ||
2364 | if (s == selected_screen) | |
2365 | { | |
2366 | Fselect_window (data->current_window); | |
2367 | if (!NULL (new_current_buffer)) | |
2368 | Fset_buffer (new_current_buffer); | |
2369 | else | |
2370 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
2371 | } | |
2372 | ||
2373 | Vminibuf_scroll_window = data->minibuf_scroll_window; | |
2374 | return (Qnil); | |
2375 | } | |
2376 | ||
2377 | /* Mark all windows now on screen as deleted | |
2378 | by setting their buffers to nil. */ | |
2379 | ||
2380 | static void | |
2381 | delete_all_subwindows (w) | |
2382 | register struct window *w; | |
2383 | { | |
2384 | register int count = 1; | |
2385 | w->buffer = Qnil; | |
2386 | if (!NULL (w->next)) | |
2387 | delete_all_subwindows (XWINDOW (w->next)); | |
2388 | if (!NULL (w->vchild)) | |
2389 | delete_all_subwindows (XWINDOW (w->vchild)); | |
2390 | if (!NULL (w->hchild)) | |
2391 | delete_all_subwindows (XWINDOW (w->hchild)); | |
2392 | } | |
2393 | \f | |
2394 | static int | |
2395 | count_windows (window) | |
2396 | register struct window *window; | |
2397 | { | |
2398 | register int count = 1; | |
2399 | if (!NULL (window->next)) | |
2400 | count += count_windows (XWINDOW (window->next)); | |
2401 | if (!NULL (window->vchild)) | |
2402 | count += count_windows (XWINDOW (window->vchild)); | |
2403 | if (!NULL (window->hchild)) | |
2404 | count += count_windows (XWINDOW (window->hchild)); | |
2405 | return count; | |
2406 | } | |
2407 | ||
2408 | static int | |
2409 | save_window_save (window, vector, i) | |
2410 | Lisp_Object window; | |
2411 | struct Lisp_Vector *vector; | |
2412 | int i; | |
2413 | { | |
2414 | register struct saved_window *p; | |
2415 | register struct window *w; | |
2416 | register Lisp_Object tem; | |
2417 | ||
2418 | for (;!NULL (window); window = w->next) | |
2419 | { | |
2420 | p = SAVED_WINDOW_N (vector, i); | |
2421 | w = XWINDOW (window); | |
2422 | ||
2423 | XFASTINT (w->temslot) = i++; | |
2424 | p->window = window; | |
2425 | p->buffer = w->buffer; | |
2426 | p->left = w->left; | |
2427 | p->top = w->top; | |
2428 | p->width = w->width; | |
2429 | p->height = w->height; | |
2430 | p->hscroll = w->hscroll; | |
2431 | p->display_table = w->display_table; | |
2432 | if (!NULL (w->buffer)) | |
2433 | { | |
2434 | /* Save w's value of point in the window configuration. | |
2435 | If w is the selected window, then get the value of point | |
2436 | from the buffer; pointm is garbage in the selected window. */ | |
2437 | if (EQ (window, selected_window)) | |
2438 | { | |
2439 | p->pointm = Fmake_marker (); | |
2440 | Fset_marker (p->pointm, BUF_PT (XBUFFER (w->buffer)), | |
2441 | w->buffer); | |
2442 | } | |
2443 | else | |
2444 | p->pointm = Fcopy_marker (w->pointm); | |
2445 | ||
2446 | p->start = Fcopy_marker (w->start); | |
2447 | p->start_at_line_beg = w->start_at_line_beg; | |
2448 | ||
2449 | tem = XBUFFER (w->buffer)->mark; | |
2450 | p->mark = Fcopy_marker (tem); | |
2451 | } | |
2452 | else | |
2453 | { | |
2454 | p->pointm = Qnil; | |
2455 | p->start = Qnil; | |
2456 | p->mark = Qnil; | |
2457 | p->start_at_line_beg = Qnil; | |
2458 | } | |
2459 | ||
2460 | if (NULL (w->parent)) | |
2461 | p->parent = Qnil; | |
2462 | else | |
2463 | p->parent = XWINDOW (w->parent)->temslot; | |
2464 | ||
2465 | if (NULL (w->prev)) | |
2466 | p->prev = Qnil; | |
2467 | else | |
2468 | p->prev = XWINDOW (w->prev)->temslot; | |
2469 | ||
2470 | if (!NULL (w->vchild)) | |
2471 | i = save_window_save (w->vchild, vector, i); | |
2472 | if (!NULL (w->hchild)) | |
2473 | i = save_window_save (w->hchild, vector, i); | |
2474 | } | |
2475 | ||
2476 | return i; | |
2477 | } | |
2478 | ||
2479 | DEFUN ("current-window-configuration", | |
43bad991 JB |
2480 | Fcurrent_window_configuration, Scurrent_window_configuration, 0, 1, 0, |
2481 | "Return an object representing the current window configuration of SCREEN.\n\ | |
2482 | If SCREEN is nil or omitted, use the selected screen.\n\ | |
7ab12479 JB |
2483 | This describes the number of windows, their sizes and current buffers,\n\ |
2484 | and for each displayed buffer, where display starts, and the positions of\n\ | |
2485 | point and mark. An exception is made for point in the current buffer:\n\ | |
2486 | its value is -not- saved.") | |
43bad991 JB |
2487 | (screen) |
2488 | Lisp_Object screen; | |
7ab12479 JB |
2489 | { |
2490 | register Lisp_Object tem; | |
2491 | register int n_windows; | |
2492 | register struct save_window_data *data; | |
2493 | register int i; | |
43bad991 JB |
2494 | SCREEN_PTR s; |
2495 | ||
2496 | if (NULL (screen)) | |
2497 | s = selected_screen; | |
2498 | else | |
2499 | { | |
2500 | CHECK_SCREEN (screen, 0); | |
2501 | s = XSCREEN (screen); | |
2502 | } | |
7ab12479 | 2503 | |
43bad991 | 2504 | n_windows = count_windows (XWINDOW (SCREEN_ROOT_WINDOW (s))); |
7ab12479 JB |
2505 | data = (struct save_window_data *) |
2506 | XVECTOR (Fmake_vector (make_number (SAVE_WINDOW_DATA_SIZE), | |
2507 | Qnil)); | |
43bad991 JB |
2508 | XFASTINT (data->screen_width) = SCREEN_WIDTH (s); |
2509 | XFASTINT (data->screen_height) = SCREEN_HEIGHT (s); | |
2510 | data->current_window = SCREEN_SELECTED_WINDOW (s); | |
7ab12479 JB |
2511 | XSET (data->current_buffer, Lisp_Buffer, current_buffer); |
2512 | data->minibuf_scroll_window = Vminibuf_scroll_window; | |
43bad991 | 2513 | data->root_window = SCREEN_ROOT_WINDOW (s); |
7ab12479 JB |
2514 | tem = Fmake_vector (make_number (n_windows), Qnil); |
2515 | data->saved_windows = tem; | |
2516 | for (i = 0; i < n_windows; i++) | |
2517 | XVECTOR (tem)->contents[i] | |
2518 | = Fmake_vector (make_number (SAVED_WINDOW_VECTOR_SIZE), Qnil); | |
43bad991 | 2519 | save_window_save (SCREEN_ROOT_WINDOW (s), |
7ab12479 JB |
2520 | XVECTOR (tem), 0); |
2521 | XSET (tem, Lisp_Window_Configuration, data); | |
2522 | return (tem); | |
2523 | } | |
2524 | ||
2525 | DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion, | |
2526 | 0, UNEVALLED, 0, | |
2527 | "Execute body, preserving window sizes and contents.\n\ | |
2528 | Restores which buffer appears in which window, where display starts,\n\ | |
2529 | as well as the current buffer.\n\ | |
2530 | Does not restore the value of point in current buffer.") | |
2531 | (args) | |
2532 | Lisp_Object args; | |
2533 | { | |
2534 | register Lisp_Object val; | |
2535 | register int count = specpdl_ptr - specpdl; | |
2536 | ||
2537 | record_unwind_protect (Fset_window_configuration, | |
43bad991 | 2538 | Fcurrent_window_configuration (Qnil)); |
7ab12479 JB |
2539 | val = Fprogn (args); |
2540 | return unbind_to (count, val); | |
2541 | } | |
2542 | \f | |
2543 | init_window_once () | |
2544 | { | |
2545 | #ifdef MULTI_SCREEN | |
2546 | selected_screen = make_terminal_screen (); | |
2547 | minibuf_window = selected_screen->minibuffer_window; | |
2548 | selected_window = selected_screen->selected_window; | |
2549 | #else /* not MULTI_SCREEN */ | |
2550 | extern Lisp_Object get_minibuffer (); | |
2551 | ||
2552 | root_window = make_window (0); | |
2553 | minibuf_window = make_window (0); | |
2554 | ||
2555 | XWINDOW (root_window)->next = minibuf_window; | |
2556 | XWINDOW (minibuf_window)->prev = root_window; | |
2557 | ||
2558 | /* These values 9 and 10 are arbitrary, | |
2559 | just so that there is "something there." | |
2560 | Correct values are put in in init_xdisp */ | |
2561 | ||
2562 | XFASTINT (XWINDOW (root_window)->width) = 10; | |
2563 | XFASTINT (XWINDOW (minibuf_window)->width) = 10; | |
2564 | ||
2565 | XFASTINT (XWINDOW (root_window)->height) = 9; | |
2566 | XFASTINT (XWINDOW (minibuf_window)->top) = 9; | |
2567 | XFASTINT (XWINDOW (minibuf_window)->height) = 1; | |
2568 | ||
2569 | /* Prevent error in Fset_window_buffer. */ | |
2570 | XWINDOW (root_window)->buffer = Qt; | |
2571 | XWINDOW (minibuf_window)->buffer = Qt; | |
2572 | ||
2573 | /* Now set them up for real. */ | |
2574 | Fset_window_buffer (root_window, Fcurrent_buffer ()); | |
2575 | Fset_window_buffer (minibuf_window, get_minibuffer (0)); | |
2576 | ||
2577 | selected_window = root_window; | |
2578 | #endif /* not MULTI_SCREEN */ | |
2579 | } | |
2580 | ||
2581 | syms_of_window () | |
2582 | { | |
2583 | Qwindowp = intern ("windowp"); | |
2584 | staticpro (&Qwindowp); | |
2585 | ||
2586 | /* Make sure all windows get marked */ | |
2587 | staticpro (&minibuf_window); | |
2588 | ||
2589 | DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function, | |
2590 | "Non-nil means call as function to display a help buffer.\n\ | |
2591 | Used by `with-output-to-temp-buffer'."); | |
2592 | Vtemp_buffer_show_function = Qnil; | |
2593 | ||
2594 | DEFVAR_LISP ("display-buffer-function", &Vdisplay_buffer_function, | |
2595 | "If non-nil, function to call to handle `display-buffer'.\n\ | |
2596 | It will receive two args, the buffer and a flag which if non-nil means\n\ | |
2597 | that the currently selected window is not acceptable.\n\ | |
2598 | Commands such as `switch-to-buffer-other-window' and `find-file-other-window'\n\ | |
2599 | work using this function."); | |
2600 | Vdisplay_buffer_function = Qnil; | |
2601 | ||
2602 | DEFVAR_LISP ("mouse-window", &Vmouse_window, | |
2603 | "Window that the last mouse click occurred on."); | |
2604 | Vmouse_window = Qnil; | |
2605 | ||
2606 | DEFVAR_LISP ("mouse-event", &Vmouse_event, | |
2607 | "The last mouse-event object. A list of four elements:\n\ | |
2608 | ((X-POS Y-POS) WINDOW SCREEN-PART KEYSEQ).\n\ | |
2609 | KEYSEQ is a string, the key sequence to be looked up in the mouse maps.\n\ | |
2610 | WINDOW is the window that the click applies do.\n\ | |
2611 | If SCREEN-PART is non-nil, the event was on a scrollbar;\n\ | |
2612 | then Y-POS is really the total length of the scrollbar, while X-POS is\n\ | |
2613 | the relative position of the scrollbar's value within that total length.\n\ | |
2614 | SCREEN-PART is one of the following symbols:\n\ | |
2615 | `vertical-scrollbar', `vertical-slider',\n\ | |
2616 | `vertical-thumbup', `vertical-thumbdown',\n\ | |
2617 | `horizontal-scrollbar', `horizontal-slider',\n\ | |
2618 | `horizontal-thumbleft', `horizontal-thumbright'"); | |
2619 | Vmouse_event = Qnil; | |
2620 | ||
2621 | DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window, | |
2622 | "Non-nil means it is the window that C-M-v in minibuffer should scroll."); | |
2623 | Vminibuf_scroll_window = Qnil; | |
2624 | ||
2625 | DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer, | |
2626 | "If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window."); | |
2627 | Vother_window_scroll_buffer = Qnil; | |
2628 | ||
2629 | #ifdef MULTI_SCREEN | |
43bad991 | 2630 | DEFVAR_BOOL ("pop-up-screens", &pop_up_screens, |
7ab12479 | 2631 | "*Non-nil means `display-buffer' should make a separate X-window."); |
43bad991 | 2632 | pop_up_screens = 0; |
7ab12479 | 2633 | |
43bad991 | 2634 | DEFVAR_LISP ("pop-up-screen-function", &Vpop_up_screen_function, |
7ab12479 JB |
2635 | "*If non-nil, function to call to handle automatic new screen creation.\n\ |
2636 | It is called with no arguments and should return a newly created screen.\n\ | |
7ab12479 JB |
2637 | \n\ |
2638 | A typical value might be `(lambda () (x-create-screen auto-screen-parms))'\n\ | |
2639 | where `auto-screen-parms' would hold the default screen parameters."); | |
43bad991 | 2640 | Vpop_up_screen_function = Qnil; |
7ab12479 JB |
2641 | #endif |
2642 | ||
2643 | DEFVAR_BOOL ("pop-up-windows", &pop_up_windows, | |
2644 | "*Non-nil means display-buffer should make new windows."); | |
2645 | pop_up_windows = 1; | |
2646 | ||
2647 | DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines, | |
2648 | "*Number of lines of continuity when scrolling by screenfuls."); | |
2649 | next_screen_context_lines = 2; | |
2650 | ||
2651 | DEFVAR_INT ("split-height-threshold", &split_height_threshold, | |
2652 | "*display-buffer would prefer to split the largest window if this large.\n\ | |
2653 | If there is only one window, it is split regardless of this value."); | |
2654 | split_height_threshold = 500; | |
2655 | ||
2656 | DEFVAR_INT ("window-min-height", &window_min_height, | |
2657 | "*Delete any window less than this tall (including its mode line)."); | |
2658 | window_min_height = 4; | |
2659 | ||
2660 | DEFVAR_INT ("window-min-width", &window_min_width, | |
2661 | "*Delete any window less than this wide."); | |
2662 | window_min_width = 10; | |
2663 | ||
2664 | defsubr (&Sselected_window); | |
2665 | defsubr (&Sminibuffer_window); | |
2666 | defsubr (&Swindow_minibuffer_p); | |
2667 | defsubr (&Swindowp); | |
2668 | defsubr (&Spos_visible_in_window_p); | |
2669 | defsubr (&Swindow_buffer); | |
2670 | defsubr (&Swindow_height); | |
2671 | defsubr (&Swindow_width); | |
2672 | defsubr (&Swindow_hscroll); | |
2673 | defsubr (&Sset_window_hscroll); | |
2674 | defsubr (&Swindow_edges); | |
2675 | defsubr (&Slocate_window_from_coordinates); | |
2676 | defsubr (&Swindow_point); | |
2677 | defsubr (&Swindow_start); | |
2678 | defsubr (&Swindow_end); | |
2679 | defsubr (&Sset_window_point); | |
2680 | defsubr (&Sset_window_start); | |
2681 | defsubr (&Swindow_dedicated_p); | |
2682 | defsubr (&Sset_window_buffer_dedicated); | |
2683 | defsubr (&Swindow_display_table); | |
2684 | defsubr (&Sset_window_display_table); | |
2685 | defsubr (&Snext_window); | |
2686 | defsubr (&Sprevious_window); | |
2687 | defsubr (&Sother_window); | |
2688 | defsubr (&Sget_lru_window); | |
2689 | defsubr (&Sget_largest_window); | |
2690 | defsubr (&Sget_buffer_window); | |
2691 | defsubr (&Sdelete_other_windows); | |
2692 | defsubr (&Sdelete_windows_on); | |
2693 | defsubr (&Sreplace_buffer_in_windows); | |
2694 | defsubr (&Sdelete_window); | |
2695 | defsubr (&Sset_window_buffer); | |
2696 | defsubr (&Sselect_window); | |
2697 | defsubr (&Sdisplay_buffer); | |
2698 | defsubr (&Ssplit_window); | |
2699 | defsubr (&Senlarge_window); | |
2700 | defsubr (&Sshrink_window); | |
2701 | defsubr (&Sscroll_up); | |
2702 | defsubr (&Sscroll_down); | |
2703 | defsubr (&Sscroll_left); | |
2704 | defsubr (&Sscroll_right); | |
2705 | defsubr (&Sscroll_other_window); | |
2706 | defsubr (&Srecenter); | |
2707 | defsubr (&Smove_to_window_line); | |
2708 | defsubr (&Swindow_configuration_p); | |
2709 | defsubr (&Sset_window_configuration); | |
2710 | defsubr (&Scurrent_window_configuration); | |
2711 | defsubr (&Ssave_window_excursion); | |
2712 | } | |
2713 | ||
2714 | keys_of_window () | |
2715 | { | |
2716 | initial_define_key (control_x_map, '1', "delete-other-windows"); | |
2717 | initial_define_key (control_x_map, '2', "split-window"); | |
2718 | initial_define_key (control_x_map, '0', "delete-window"); | |
2719 | initial_define_key (control_x_map, 'o', "other-window"); | |
2720 | initial_define_key (control_x_map, '^', "enlarge-window"); | |
2721 | initial_define_key (control_x_map, '<', "scroll-left"); | |
2722 | initial_define_key (control_x_map, '>', "scroll-right"); | |
2723 | ||
2724 | initial_define_key (global_map, Ctl ('V'), "scroll-up"); | |
2725 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); | |
2726 | initial_define_key (meta_map, 'v', "scroll-down"); | |
2727 | ||
2728 | initial_define_key (global_map, Ctl('L'), "recenter"); | |
2729 | initial_define_key (meta_map, 'r', "move-to-window-line"); | |
2730 | } |