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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
535e0b8e | 3 | Copyright (C) 1985, 1986, 1987, 1992, 1993 Free Software Foundation, Inc. |
7ab12479 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
1113d9db | 9 | the Free Software Foundation; either version 2, or (at your option) |
7ab12479 JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
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" | |
44fa5b1e | 24 | #include "frame.h" |
7ab12479 JB |
25 | #include "window.h" |
26 | #include "commands.h" | |
27 | #include "indent.h" | |
28 | #include "termchar.h" | |
29 | #include "disptab.h" | |
f8026fd8 | 30 | #include "keyboard.h" |
7ab12479 | 31 | |
605be8af | 32 | Lisp_Object Qwindowp, Qlive_window_p; |
7ab12479 JB |
33 | |
34 | Lisp_Object Fnext_window (), Fdelete_window (), Fselect_window (); | |
35 | Lisp_Object Fset_window_buffer (), Fsplit_window (), Frecenter (); | |
36 | ||
fd482be5 | 37 | void delete_all_subwindows (); |
7ab12479 JB |
38 | static struct window *decode_window(); |
39 | ||
40 | /* This is the window in which the terminal's cursor should | |
41 | be left when nothing is being done with it. This must | |
42 | always be a leaf window, and its buffer is selected by | |
43 | the top level editing loop at the end of each command. | |
44 | ||
45 | This value is always the same as | |
44fa5b1e | 46 | FRAME_SELECTED_WINDOW (selected_frame). */ |
7ab12479 JB |
47 | |
48 | Lisp_Object selected_window; | |
49 | ||
44fa5b1e | 50 | /* The minibuffer window of the selected frame. |
7ab12479 JB |
51 | Note that you cannot test for minibufferness of an arbitrary window |
52 | by comparing against this; but you can test for minibufferness of | |
53 | the selected window. */ | |
54 | Lisp_Object minibuf_window; | |
55 | ||
56 | /* Non-nil means it is the window for C-M-v to scroll | |
57 | when the minibuffer is selected. */ | |
58 | Lisp_Object Vminibuf_scroll_window; | |
59 | ||
60 | /* Non-nil means this is the buffer whose window C-M-v should scroll. */ | |
61 | Lisp_Object Vother_window_scroll_buffer; | |
62 | ||
63 | /* Window that the mouse is over (nil if no mouse support). */ | |
64 | Lisp_Object Vmouse_window; | |
65 | ||
66 | /* Last mouse click data structure (nil if no mouse support). */ | |
67 | Lisp_Object Vmouse_event; | |
68 | ||
69 | /* Non-nil means it's function to call to display temp buffers. */ | |
70 | Lisp_Object Vtemp_buffer_show_function; | |
71 | ||
72 | /* If a window gets smaller than either of these, it is removed. */ | |
73 | int window_min_height; | |
74 | int window_min_width; | |
75 | ||
76 | /* Nonzero implies Fdisplay_buffer should create windows. */ | |
77 | int pop_up_windows; | |
78 | ||
44fa5b1e JB |
79 | /* Nonzero implies make new frames for Fdisplay_buffer. */ |
80 | int pop_up_frames; | |
7ab12479 JB |
81 | |
82 | /* Non-nil means use this function instead of default */ | |
44fa5b1e | 83 | Lisp_Object Vpop_up_frame_function; |
7ab12479 JB |
84 | |
85 | /* Function to call to handle Fdisplay_buffer. */ | |
86 | Lisp_Object Vdisplay_buffer_function; | |
87 | ||
88 | /* Fdisplay_buffer always splits the largest window | |
89 | if that window is more than this high. */ | |
90 | int split_height_threshold; | |
91 | ||
92 | /* Number of lines of continuity in scrolling by screenfuls. */ | |
93 | int next_screen_context_lines; | |
94 | ||
95 | /* Incremented for each window created. */ | |
96 | static int sequence_number; | |
97 | ||
98 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
99 | \f | |
100 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, | |
101 | "Returns t if OBJ is a window.") | |
102 | (obj) | |
103 | Lisp_Object obj; | |
104 | { | |
105 | return XTYPE (obj) == Lisp_Window ? Qt : Qnil; | |
106 | } | |
107 | ||
605be8af JB |
108 | DEFUN ("live-window-p", Flive_window_p, Slive_window_p, 1, 1, 0, |
109 | "Returns t if OBJ is a window which is currently visible.") | |
110 | (obj) | |
111 | Lisp_Object obj; | |
112 | { | |
113 | return ((XTYPE (obj) == Lisp_Window | |
114 | && ! NILP (XWINDOW (obj)->buffer)) | |
115 | ? Qt : Qnil); | |
116 | } | |
117 | ||
7ab12479 JB |
118 | Lisp_Object |
119 | make_window () | |
120 | { | |
121 | register Lisp_Object val; | |
122 | register struct window *p; | |
123 | ||
124 | /* Add sizeof (Lisp_Object) here because sizeof (struct Lisp_Vector) | |
125 | includes the first element. */ | |
126 | val = Fmake_vector ( | |
127 | make_number ((sizeof (struct window) - sizeof (struct Lisp_Vector) | |
128 | + sizeof (Lisp_Object)) | |
129 | / sizeof (Lisp_Object)), | |
130 | Qnil); | |
131 | XSETTYPE (val, Lisp_Window); | |
132 | p = XWINDOW (val); | |
133 | XFASTINT (p->sequence_number) = ++sequence_number; | |
134 | XFASTINT (p->left) = XFASTINT (p->top) | |
135 | = XFASTINT (p->height) = XFASTINT (p->width) | |
136 | = XFASTINT (p->hscroll) = 0; | |
137 | XFASTINT (p->last_point_x) = XFASTINT (p->last_point_y) = 0; | |
138 | p->start = Fmake_marker (); | |
139 | p->pointm = Fmake_marker (); | |
140 | XFASTINT (p->use_time) = 0; | |
44fa5b1e | 141 | p->frame = Qnil; |
7ab12479 JB |
142 | p->display_table = Qnil; |
143 | p->dedicated = Qnil; | |
144 | return val; | |
145 | } | |
146 | ||
147 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
148 | "Return the window that the cursor now appears in and commands apply to.") | |
149 | () | |
150 | { | |
151 | return selected_window; | |
152 | } | |
153 | ||
83762ba4 JB |
154 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, |
155 | "Return the window used now for minibuffers.\n\ | |
156 | If the optional argument FRAME is specified, return the minibuffer window\n\ | |
157 | used by that frame.") | |
158 | (frame) | |
159 | Lisp_Object frame; | |
7ab12479 | 160 | { |
44fa5b1e | 161 | #ifdef MULTI_FRAME |
83762ba4 JB |
162 | if (NILP (frame)) |
163 | XSET (frame, Lisp_Frame, selected_frame); | |
164 | else | |
165 | CHECK_LIVE_FRAME (frame, 0); | |
166 | #endif | |
167 | ||
168 | return FRAME_MINIBUF_WINDOW (XFRAME (frame)); | |
7ab12479 JB |
169 | } |
170 | ||
605be8af | 171 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 0, 1, 0, |
7ab12479 JB |
172 | "Returns non-nil if WINDOW is a minibuffer window.") |
173 | (window) | |
174 | Lisp_Object window; | |
175 | { | |
176 | struct window *w = decode_window (window); | |
177 | return (MINI_WINDOW_P (w) ? Qt : Qnil); | |
178 | } | |
179 | ||
180 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, | |
181 | Spos_visible_in_window_p, 0, 2, 0, | |
44fa5b1e | 182 | "Return t if position POS is currently on the frame in WINDOW.\n\ |
7ab12479 JB |
183 | Returns nil if that position is scrolled vertically out of view.\n\ |
184 | POS defaults to point; WINDOW, to the selected window.") | |
185 | (pos, window) | |
186 | Lisp_Object pos, window; | |
187 | { | |
188 | register struct window *w; | |
189 | register int top; | |
190 | register int height; | |
191 | register int posint; | |
192 | register struct buffer *buf; | |
193 | struct position posval; | |
194 | ||
265a9e55 | 195 | if (NILP (pos)) |
7ab12479 JB |
196 | posint = point; |
197 | else | |
198 | { | |
199 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
200 | posint = XINT (pos); | |
201 | } | |
202 | ||
605be8af | 203 | w = decode_window (window); |
7ab12479 JB |
204 | top = marker_position (w->start); |
205 | ||
206 | if (posint < top) | |
207 | return Qnil; | |
208 | ||
209 | height = XFASTINT (w->height) - ! MINI_WINDOW_P (w); | |
210 | ||
211 | buf = XBUFFER (w->buffer); | |
212 | if (XFASTINT (w->last_modified) >= BUF_MODIFF (buf)) | |
213 | { | |
44fa5b1e | 214 | /* If frame is up to date, |
7ab12479 JB |
215 | use the info recorded about how much text fit on it. */ |
216 | if (posint < BUF_Z (buf) - XFASTINT (w->window_end_pos) | |
217 | || (XFASTINT (w->window_end_vpos) < height)) | |
218 | return Qt; | |
219 | return Qnil; | |
220 | } | |
221 | else | |
222 | { | |
223 | if (posint > BUF_Z (buf)) | |
224 | return Qnil; | |
225 | ||
226 | /* If that info is not correct, calculate afresh */ | |
227 | posval = *compute_motion (top, 0, 0, posint, height, 0, | |
535e0b8e | 228 | window_internal_width (w) - 1, |
7ab12479 JB |
229 | XINT (w->hscroll), 0); |
230 | ||
231 | return posval.vpos < height ? Qt : Qnil; | |
232 | } | |
233 | } | |
234 | \f | |
235 | static struct window * | |
236 | decode_window (window) | |
237 | register Lisp_Object window; | |
238 | { | |
265a9e55 | 239 | if (NILP (window)) |
7ab12479 JB |
240 | return XWINDOW (selected_window); |
241 | ||
605be8af | 242 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
243 | return XWINDOW (window); |
244 | } | |
245 | ||
246 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, | |
247 | "Return the buffer that WINDOW is displaying.") | |
248 | (window) | |
249 | Lisp_Object window; | |
250 | { | |
251 | return decode_window (window)->buffer; | |
252 | } | |
253 | ||
254 | DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0, | |
255 | "Return the number of lines in WINDOW (including its mode line).") | |
256 | (window) | |
257 | Lisp_Object window; | |
258 | { | |
259 | return decode_window (window)->height; | |
260 | } | |
261 | ||
262 | DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0, | |
263 | "Return the number of columns in WINDOW.") | |
264 | (window) | |
265 | Lisp_Object window; | |
266 | { | |
267 | register struct window *w = decode_window (window); | |
7f4161e0 | 268 | register int width = XFASTINT (w->width); |
7ab12479 | 269 | |
535e0b8e | 270 | return make_number (window_internal_width (w)); |
7ab12479 JB |
271 | } |
272 | ||
273 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, | |
274 | "Return the number of columns by which WINDOW is scrolled from left margin.") | |
275 | (window) | |
276 | Lisp_Object window; | |
277 | { | |
278 | return decode_window (window)->hscroll; | |
279 | } | |
280 | ||
281 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, | |
282 | "Set number of columns WINDOW is scrolled from left margin to NCOL.\n\ | |
283 | NCOL should be zero or positive.") | |
284 | (window, ncol) | |
285 | register Lisp_Object window, ncol; | |
286 | { | |
287 | register struct window *w; | |
288 | ||
289 | CHECK_NUMBER (ncol, 1); | |
290 | if (XINT (ncol) < 0) XFASTINT (ncol) = 0; | |
291 | if (XFASTINT (ncol) >= (1 << (SHORTBITS - 1))) | |
292 | args_out_of_range (ncol, Qnil); | |
293 | w = decode_window (window); | |
7f4161e0 | 294 | if (XINT (w->hscroll) != XINT (ncol)) |
7ab12479 JB |
295 | clip_changed = 1; /* Prevent redisplay shortcuts */ |
296 | w->hscroll = ncol; | |
297 | return ncol; | |
298 | } | |
299 | ||
300 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, | |
301 | "Return a list of the edge coordinates of WINDOW.\n\ | |
44fa5b1e | 302 | \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.\n\ |
7ab12479 JB |
303 | RIGHT is one more than the rightmost column used by WINDOW,\n\ |
304 | and BOTTOM is one more than the bottommost row used by WINDOW\n\ | |
305 | and its mode-line.") | |
306 | (window) | |
307 | Lisp_Object window; | |
308 | { | |
309 | register struct window *w = decode_window (window); | |
310 | ||
311 | return Fcons (w->left, Fcons (w->top, | |
312 | Fcons (make_number (XFASTINT (w->left) + XFASTINT (w->width)), | |
313 | Fcons (make_number (XFASTINT (w->top) | |
314 | + XFASTINT (w->height)), | |
315 | Qnil)))); | |
316 | } | |
317 | ||
d5783c40 JB |
318 | /* Test if the character at column *x, row *y is within window *w. |
319 | If it is not, return 0; | |
320 | if it is in the window's text area, | |
321 | set *x and *y to its location relative to the upper left corner | |
322 | of the window, and | |
323 | return 1; | |
324 | if it is on the window's modeline, return 2; | |
325 | if it is on the border between the window and its right sibling, | |
326 | return 3. */ | |
327 | static int | |
328 | coordinates_in_window (w, x, y) | |
329 | register struct window *w; | |
330 | register int *x, *y; | |
331 | { | |
332 | register int left = XINT (w->left); | |
333 | register int width = XINT (w->width); | |
334 | register int window_height = XINT (w->height); | |
335 | register int top = XFASTINT (w->top); | |
336 | ||
337 | if ( *x < left || *x >= left + width | |
338 | || *y < top || *y >= top + window_height) | |
339 | return 0; | |
340 | ||
341 | /* Is the character is the mode line? */ | |
342 | if (*y == top + window_height - 1 | |
05c2896a | 343 | && ! MINI_WINDOW_P (w)) |
d5783c40 JB |
344 | return 2; |
345 | ||
346 | /* Is the character in the right border? */ | |
347 | if (*x == left + width - 1 | |
44fa5b1e | 348 | && left + width != FRAME_WIDTH (XFRAME (w->frame))) |
d5783c40 JB |
349 | return 3; |
350 | ||
351 | *x -= left; | |
352 | *y -= top; | |
353 | return 1; | |
354 | } | |
355 | ||
356 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, | |
357 | Scoordinates_in_window_p, 2, 2, 0, | |
358 | "Return non-nil if COORDINATES are in WINDOW.\n\ | |
1113d9db | 359 | COORDINATES is a cons of the form (X . Y), X and Y being distances\n\ |
44fa5b1e | 360 | measured in characters from the upper-left corner of the frame.\n\ |
1113d9db | 361 | (0 . 0) denotes the character in the upper left corner of the\n\ |
44fa5b1e | 362 | frame.\n\ |
d5783c40 JB |
363 | If COORDINATES are in the text portion of WINDOW,\n\ |
364 | the coordinates relative to the window are returned.\n\ | |
e5d77022 | 365 | If they are in the mode line of WINDOW, `mode-line' is returned.\n\ |
d5783c40 | 366 | If they are on the border between WINDOW and its right sibling,\n\ |
e5d77022 | 367 | `vertical-line' is returned.") |
d5783c40 JB |
368 | (coordinates, window) |
369 | register Lisp_Object coordinates, window; | |
370 | { | |
371 | int x, y; | |
372 | ||
605be8af | 373 | CHECK_LIVE_WINDOW (window, 0); |
d5783c40 JB |
374 | CHECK_CONS (coordinates, 1); |
375 | x = XINT (Fcar (coordinates)); | |
376 | y = XINT (Fcdr (coordinates)); | |
377 | ||
378 | switch (coordinates_in_window (XWINDOW (window), &x, &y)) | |
379 | { | |
380 | case 0: /* NOT in window at all. */ | |
381 | return Qnil; | |
382 | ||
383 | case 1: /* In text part of window. */ | |
384 | return Fcons (x, y); | |
385 | ||
386 | case 2: /* In mode line of window. */ | |
387 | return Qmode_line; | |
388 | ||
389 | case 3: /* On right border of window. */ | |
e5d77022 | 390 | return Qvertical_line; |
d5783c40 JB |
391 | |
392 | default: | |
393 | abort (); | |
394 | } | |
395 | } | |
396 | ||
7ab12479 | 397 | /* Find the window containing column x, row y, and return it as a |
d5783c40 JB |
398 | Lisp_Object. If x, y is on the window's modeline, set *part |
399 | to 1; if it is on the separating line between the window and its | |
400 | right sibling, set it to 2; otherwise set it to 0. If there is no | |
401 | window under x, y return nil and leave *part unmodified. */ | |
7ab12479 | 402 | Lisp_Object |
44fa5b1e JB |
403 | window_from_coordinates (frame, x, y, part) |
404 | FRAME_PTR frame; | |
7ab12479 | 405 | int x, y; |
d5783c40 | 406 | int *part; |
7ab12479 JB |
407 | { |
408 | register Lisp_Object tem, first; | |
409 | ||
44fa5b1e | 410 | tem = first = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 411 | |
d5783c40 | 412 | do |
7ab12479 JB |
413 | { |
414 | int found = coordinates_in_window (XWINDOW (tem), &x, &y); | |
415 | ||
416 | if (found) | |
417 | { | |
d5783c40 | 418 | *part = found - 1; |
7ab12479 JB |
419 | return tem; |
420 | } | |
421 | ||
d5783c40 | 422 | tem = Fnext_window (tem, Qt, Qlambda); |
7ab12479 | 423 | } |
d5783c40 JB |
424 | while (! EQ (tem, first)); |
425 | ||
426 | return Qnil; | |
7ab12479 JB |
427 | } |
428 | ||
ab17c3f2 | 429 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
b0c33a94 | 430 | "Return window containing coordinates X and Y on FRAME.\n\ |
44fa5b1e JB |
431 | If omitted, FRAME defaults to the currently selected frame.\n\ |
432 | The top left corner of the frame is considered to be row 0,\n\ | |
95605e15 | 433 | column 0.") |
b0c33a94 RS |
434 | (x, y, frame) |
435 | Lisp_Object x, y, frame; | |
7ab12479 JB |
436 | { |
437 | int part; | |
438 | ||
4b206065 | 439 | #ifdef MULTI_FRAME |
44fa5b1e JB |
440 | if (NILP (frame)) |
441 | XSET (frame, Lisp_Frame, selected_frame); | |
d5783c40 | 442 | else |
44fa5b1e | 443 | CHECK_LIVE_FRAME (frame, 2); |
4b206065 | 444 | #endif |
b0c33a94 RS |
445 | CHECK_NUMBER (x, 0); |
446 | CHECK_NUMBER (y, 1); | |
7ab12479 | 447 | |
44fa5b1e | 448 | return window_from_coordinates (XFRAME (frame), |
b0c33a94 | 449 | XINT (x), XINT (y), |
7ab12479 JB |
450 | &part); |
451 | } | |
452 | ||
453 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
454 | "Return current value of point in WINDOW.\n\ | |
455 | For a nonselected window, this is the value point would have\n\ | |
456 | if that window were selected.\n\ | |
457 | \n\ | |
458 | Note that, when WINDOW is the selected window and its buffer\n\ | |
459 | is also currently selected, the value returned is the same as (point).\n\ | |
460 | It would be more strictly correct to return the `top-level' value\n\ | |
461 | of point, outside of any save-excursion forms.\n\ | |
462 | But that is hard to define.") | |
463 | (window) | |
464 | Lisp_Object window; | |
465 | { | |
466 | register struct window *w = decode_window (window); | |
467 | ||
468 | if (w == XWINDOW (selected_window) | |
469 | && current_buffer == XBUFFER (w->buffer)) | |
470 | return Fpoint (); | |
471 | return Fmarker_position (w->pointm); | |
472 | } | |
473 | ||
474 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
475 | "Return position at which display currently starts in WINDOW.") | |
476 | (window) | |
477 | Lisp_Object window; | |
478 | { | |
479 | return Fmarker_position (decode_window (window)->start); | |
480 | } | |
481 | ||
482 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 1, 0, | |
483 | "Return position at which display currently ends in WINDOW.") | |
484 | (window) | |
485 | Lisp_Object window; | |
486 | { | |
487 | Lisp_Object value; | |
488 | struct window *w = decode_window (window); | |
489 | ||
490 | XSET (value, Lisp_Int, | |
491 | BUF_Z (current_buffer) - XFASTINT (w->window_end_pos)); | |
492 | ||
493 | return value; | |
494 | } | |
495 | ||
496 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, | |
497 | "Make point value in WINDOW be at position POS in WINDOW's buffer.") | |
498 | (window, pos) | |
499 | Lisp_Object window, pos; | |
500 | { | |
501 | register struct window *w = decode_window (window); | |
502 | ||
503 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
504 | if (w == XWINDOW (selected_window)) | |
505 | Fgoto_char (pos); | |
506 | else | |
507 | set_marker_restricted (w->pointm, pos, w->buffer); | |
508 | ||
509 | return pos; | |
510 | } | |
511 | ||
512 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
513 | "Make display in WINDOW start at position POS in WINDOW's buffer.\n\ | |
514 | Optional third arg NOFORCE non-nil inhibits next redisplay\n\ | |
515 | from overriding motion of point in order to display at this exact start.") | |
516 | (window, pos, noforce) | |
517 | Lisp_Object window, pos, noforce; | |
518 | { | |
519 | register struct window *w = decode_window (window); | |
520 | ||
521 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
522 | set_marker_restricted (w->start, pos, w->buffer); | |
523 | /* this is not right, but much easier than doing what is right. */ | |
524 | w->start_at_line_beg = Qnil; | |
265a9e55 | 525 | if (NILP (noforce)) |
7ab12479 JB |
526 | w->force_start = Qt; |
527 | w->update_mode_line = Qt; | |
528 | XFASTINT (w->last_modified) = 0; | |
62c07cc7 JB |
529 | if (!EQ (window, selected_window)) |
530 | windows_or_buffers_changed++; | |
7ab12479 JB |
531 | return pos; |
532 | } | |
533 | ||
534 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, | |
535 | 1, 1, 0, | |
536 | "Return WINDOW's dedicated object, usually t or nil.\n\ | |
537 | See also `set-window-buffer-dedicated'.") | |
538 | (window) | |
539 | Lisp_Object window; | |
540 | { | |
541 | return decode_window (window)->dedicated; | |
542 | } | |
543 | ||
d207b766 RS |
544 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
545 | Sset_window_dedicated_p, 2, 2, 0, | |
546 | "Control whether WINDOW is dedicated to the buffer it displays.\n\ | |
547 | If it is dedicated, Emacs will not automatically change\n\ | |
548 | which buffer appears in it.\n\ | |
549 | The second argument is the new value for the dedication flag;\n\ | |
550 | non-nil means yes.") | |
7ab12479 JB |
551 | (window, arg) |
552 | Lisp_Object window, arg; | |
553 | { | |
554 | register struct window *w = decode_window (window); | |
555 | ||
265a9e55 | 556 | if (NILP (arg)) |
7ab12479 JB |
557 | w->dedicated = Qnil; |
558 | else | |
d207b766 | 559 | w->dedicated = Qt; |
7ab12479 JB |
560 | |
561 | return w->dedicated; | |
562 | } | |
563 | ||
564 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, | |
565 | 0, 1, 0, | |
566 | "Return the display-table that WINDOW is using.") | |
567 | (window) | |
568 | Lisp_Object window; | |
569 | { | |
570 | return decode_window (window)->display_table; | |
571 | } | |
572 | ||
573 | /* Get the display table for use currently on window W. | |
574 | This is either W's display table or W's buffer's display table. | |
575 | Ignore the specified tables if they are not valid; | |
576 | if no valid table is specified, return 0. */ | |
577 | ||
578 | struct Lisp_Vector * | |
579 | window_display_table (w) | |
580 | struct window *w; | |
581 | { | |
582 | Lisp_Object tem; | |
583 | tem = w->display_table; | |
584 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
585 | return XVECTOR (tem); | |
586 | tem = XBUFFER (w->buffer)->display_table; | |
587 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
588 | return XVECTOR (tem); | |
589 | tem = Vstandard_display_table; | |
590 | if (XTYPE (tem) == Lisp_Vector && XVECTOR (tem)->size == DISP_TABLE_SIZE) | |
591 | return XVECTOR (tem); | |
592 | return 0; | |
593 | } | |
594 | ||
3a2712f9 | 595 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
7ab12479 JB |
596 | "Set WINDOW's display-table to TABLE.") |
597 | (window, table) | |
598 | register Lisp_Object window, table; | |
599 | { | |
600 | register struct window *w; | |
601 | register Lisp_Object z; /* Return value. */ | |
602 | ||
603 | w = decode_window (window); | |
604 | w->display_table = table; | |
605 | return table; | |
606 | } | |
607 | \f | |
608 | /* Record info on buffer window w is displaying | |
609 | when it is about to cease to display that buffer. */ | |
610 | static | |
611 | unshow_buffer (w) | |
612 | register struct window *w; | |
613 | { | |
614 | Lisp_Object buf = w->buffer; | |
615 | ||
616 | if (XBUFFER (buf) != XMARKER (w->pointm)->buffer) | |
617 | abort (); | |
618 | ||
619 | if (w == XWINDOW (selected_window) | |
620 | || ! EQ (buf, XWINDOW (selected_window)->buffer)) | |
621 | /* Do this except when the selected window's buffer | |
622 | is being removed from some other window. */ | |
623 | XBUFFER (buf)->last_window_start = marker_position (w->start); | |
624 | ||
625 | /* Point in the selected window's buffer | |
626 | is actually stored in that buffer, and the window's pointm isn't used. | |
627 | So don't clobber point in that buffer. */ | |
628 | if (! EQ (buf, XWINDOW (selected_window)->buffer)) | |
629 | BUF_PT (XBUFFER (buf)) | |
630 | = clip_to_bounds (BUF_BEGV (XBUFFER (buf)), | |
631 | marker_position (w->pointm), | |
632 | BUF_ZV (XBUFFER (buf))); | |
633 | } | |
634 | ||
635 | /* Put replacement into the window structure in place of old. */ | |
636 | static | |
637 | replace_window (old, replacement) | |
638 | Lisp_Object old, replacement; | |
639 | { | |
640 | register Lisp_Object tem; | |
641 | register struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
642 | ||
44fa5b1e JB |
643 | /* If OLD is its frame's root_window, then replacement is the new |
644 | root_window for that frame. */ | |
7ab12479 | 645 | |
7f4161e0 | 646 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
44fa5b1e | 647 | FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; |
7ab12479 JB |
648 | |
649 | p->left = o->left; | |
650 | p->top = o->top; | |
651 | p->width = o->width; | |
652 | p->height = o->height; | |
653 | ||
654 | p->next = tem = o->next; | |
265a9e55 | 655 | if (!NILP (tem)) |
7ab12479 JB |
656 | XWINDOW (tem)->prev = replacement; |
657 | ||
658 | p->prev = tem = o->prev; | |
265a9e55 | 659 | if (!NILP (tem)) |
7ab12479 JB |
660 | XWINDOW (tem)->next = replacement; |
661 | ||
662 | p->parent = tem = o->parent; | |
265a9e55 | 663 | if (!NILP (tem)) |
7ab12479 JB |
664 | { |
665 | if (EQ (XWINDOW (tem)->vchild, old)) | |
666 | XWINDOW (tem)->vchild = replacement; | |
667 | if (EQ (XWINDOW (tem)->hchild, old)) | |
668 | XWINDOW (tem)->hchild = replacement; | |
669 | } | |
670 | ||
671 | /*** Here, if replacement is a vertical combination | |
672 | and so is its new parent, we should make replacement's | |
673 | children be children of that parent instead. ***/ | |
674 | } | |
675 | ||
676 | DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 1, "", | |
677 | "Remove WINDOW from the display. Default is selected window.") | |
678 | (window) | |
679 | register Lisp_Object window; | |
680 | { | |
681 | register Lisp_Object tem, parent, sib; | |
682 | register struct window *p; | |
683 | register struct window *par; | |
684 | ||
605be8af JB |
685 | /* Because this function is called by other C code on non-leaf |
686 | windows, the CHECK_LIVE_WINDOW macro would choke inappropriately, | |
687 | so we can't decode_window here. */ | |
265a9e55 | 688 | if (NILP (window)) |
7ab12479 JB |
689 | window = selected_window; |
690 | else | |
691 | CHECK_WINDOW (window, 0); | |
7ab12479 | 692 | p = XWINDOW (window); |
605be8af JB |
693 | |
694 | /* It's okay to delete an already-deleted window. */ | |
695 | if (NILP (p->buffer) | |
696 | && NILP (p->hchild) | |
697 | && NILP (p->vchild)) | |
698 | return Qnil; | |
699 | ||
7ab12479 | 700 | parent = p->parent; |
265a9e55 | 701 | if (NILP (parent)) |
7ab12479 JB |
702 | error ("Attempt to delete minibuffer or sole ordinary window"); |
703 | par = XWINDOW (parent); | |
704 | ||
705 | windows_or_buffers_changed++; | |
706 | ||
605be8af JB |
707 | /* Are we trying to delete any frame's selected window? */ |
708 | { | |
709 | Lisp_Object frame = WINDOW_FRAME (XWINDOW (window)); | |
710 | ||
711 | if (EQ (window, FRAME_SELECTED_WINDOW (XFRAME (frame)))) | |
712 | { | |
713 | Lisp_Object alternative = Fnext_window (window, Qlambda, Qnil); | |
714 | ||
715 | /* If we're about to delete the selected window on the | |
716 | selected frame, then we should use Fselect_window to select | |
717 | the new window. On the other hand, if we're about to | |
718 | delete the selected window on any other frame, we shouldn't do | |
719 | anything but set the frame's selected_window slot. */ | |
720 | if (EQ (window, selected_window)) | |
721 | Fselect_window (alternative); | |
722 | else | |
723 | FRAME_SELECTED_WINDOW (XFRAME (frame)) = alternative; | |
724 | } | |
725 | } | |
7ab12479 JB |
726 | |
727 | tem = p->buffer; | |
728 | /* tem is null for dummy parent windows | |
729 | (which have inferiors but not any contents themselves) */ | |
265a9e55 | 730 | if (!NILP (tem)) |
7ab12479 JB |
731 | { |
732 | unshow_buffer (p); | |
733 | unchain_marker (p->pointm); | |
734 | unchain_marker (p->start); | |
7ab12479 JB |
735 | } |
736 | ||
737 | tem = p->next; | |
265a9e55 | 738 | if (!NILP (tem)) |
7ab12479 JB |
739 | XWINDOW (tem)->prev = p->prev; |
740 | ||
741 | tem = p->prev; | |
265a9e55 | 742 | if (!NILP (tem)) |
7ab12479 JB |
743 | XWINDOW (tem)->next = p->next; |
744 | ||
745 | if (EQ (window, par->hchild)) | |
746 | par->hchild = p->next; | |
747 | if (EQ (window, par->vchild)) | |
748 | par->vchild = p->next; | |
749 | ||
750 | /* Find one of our siblings to give our space to. */ | |
751 | sib = p->prev; | |
265a9e55 | 752 | if (NILP (sib)) |
7ab12479 JB |
753 | { |
754 | /* If p gives its space to its next sibling, that sibling needs | |
755 | to have its top/left side pulled back to where p's is. | |
756 | set_window_{height,width} will re-position the sibling's | |
757 | children. */ | |
758 | sib = p->next; | |
7f4161e0 JB |
759 | XWINDOW (sib)->top = p->top; |
760 | XWINDOW (sib)->left = p->left; | |
7ab12479 JB |
761 | } |
762 | ||
763 | /* Stretch that sibling. */ | |
265a9e55 | 764 | if (!NILP (par->vchild)) |
7ab12479 JB |
765 | set_window_height (sib, |
766 | XFASTINT (XWINDOW (sib)->height) + XFASTINT (p->height), | |
767 | 1); | |
265a9e55 | 768 | if (!NILP (par->hchild)) |
7ab12479 JB |
769 | set_window_width (sib, |
770 | XFASTINT (XWINDOW (sib)->width) + XFASTINT (p->width), | |
771 | 1); | |
772 | ||
773 | /* If parent now has only one child, | |
774 | put the child into the parent's place. */ | |
7ab12479 | 775 | tem = par->hchild; |
265a9e55 | 776 | if (NILP (tem)) |
7ab12479 | 777 | tem = par->vchild; |
265a9e55 | 778 | if (NILP (XWINDOW (tem)->next)) |
7ab12479 | 779 | replace_window (parent, tem); |
605be8af JB |
780 | |
781 | /* Since we may be deleting combination windows, we must make sure that | |
782 | not only p but all its children have been marked as deleted. */ | |
783 | if (! NILP (p->hchild)) | |
784 | delete_all_subwindows (XWINDOW (p->hchild)); | |
785 | else if (! NILP (p->vchild)) | |
786 | delete_all_subwindows (XWINDOW (p->vchild)); | |
787 | ||
788 | /* Mark this window as deleted. */ | |
789 | p->buffer = p->hchild = p->vchild = Qnil; | |
790 | ||
7ab12479 JB |
791 | return Qnil; |
792 | } | |
793 | \f | |
7ab12479 | 794 | |
44fa5b1e | 795 | extern Lisp_Object next_frame (), prev_frame (); |
7ab12479 JB |
796 | |
797 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, | |
798 | "Return next window after WINDOW in canonical ordering of windows.\n\ | |
d5783c40 JB |
799 | If omitted, WINDOW defaults to the selected window.\n\ |
800 | \n\ | |
801 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
802 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
803 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
804 | minibuffer even if it is active.\n\ | |
805 | \n\ | |
44fa5b1e JB |
806 | Several frames may share a single minibuffer; if the minibuffer\n\ |
807 | counts, all windows on all frames that share that minibuffer count\n\ | |
d5783c40 | 808 | too. This means that next-window may be used to iterate through the\n\ |
44fa5b1e JB |
809 | set of windows even when the minibuffer is on another frame. If the\n\ |
810 | minibuffer does not count, only windows from WINDOW's frame count.\n\ | |
d5783c40 | 811 | \n\ |
44fa5b1e JB |
812 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
813 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
814 | above. If neither nil nor t, restrict to WINDOW's frame.") | |
815 | (window, minibuf, all_frames) | |
816 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
817 | { |
818 | register Lisp_Object tem; | |
d5783c40 | 819 | Lisp_Object start_window; |
7ab12479 | 820 | |
265a9e55 | 821 | if (NILP (window)) |
7ab12479 JB |
822 | window = selected_window; |
823 | else | |
605be8af | 824 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 825 | |
d5783c40 JB |
826 | start_window = window; |
827 | ||
828 | /* minibuf == nil may or may not include minibuffers. | |
829 | Decide if it does. */ | |
265a9e55 | 830 | if (NILP (minibuf)) |
d5783c40 JB |
831 | minibuf = (minibuf_level ? Qt : Qlambda); |
832 | ||
44fa5b1e JB |
833 | /* all_frames == nil doesn't specify which frames to include. |
834 | Decide which frames it includes. */ | |
835 | if (NILP (all_frames)) | |
836 | all_frames = (EQ (minibuf, Qt) | |
837 | ? (FRAME_MINIBUF_WINDOW | |
838 | (XFRAME | |
839 | (WINDOW_FRAME | |
d5783c40 JB |
840 | (XWINDOW (window))))) |
841 | : Qnil); | |
44fa5b1e JB |
842 | else if (! EQ (all_frames, Qt)) |
843 | all_frames = Qnil; | |
7ab12479 JB |
844 | |
845 | /* Do this loop at least once, to get the next window, and perhaps | |
846 | again, if we hit the minibuffer and that is not acceptable. */ | |
847 | do | |
848 | { | |
849 | /* Find a window that actually has a next one. This loop | |
850 | climbs up the tree. */ | |
265a9e55 JB |
851 | while (tem = XWINDOW (window)->next, NILP (tem)) |
852 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 853 | window = tem; |
d5783c40 | 854 | else |
7ab12479 | 855 | { |
44fa5b1e JB |
856 | /* We've reached the end of this frame. |
857 | Which other frames are acceptable? */ | |
858 | tem = WINDOW_FRAME (XWINDOW (window)); | |
859 | #ifdef MULTI_FRAME | |
860 | if (! NILP (all_frames)) | |
861 | tem = next_frame (tem, all_frames); | |
7ab12479 | 862 | #endif |
44fa5b1e | 863 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 864 | |
7ab12479 JB |
865 | break; |
866 | } | |
867 | ||
868 | window = tem; | |
d5783c40 | 869 | |
7ab12479 JB |
870 | /* If we're in a combination window, find its first child and |
871 | recurse on that. Otherwise, we've found the window we want. */ | |
872 | while (1) | |
873 | { | |
265a9e55 | 874 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 875 | window = XWINDOW (window)->hchild; |
265a9e55 | 876 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
877 | window = XWINDOW (window)->vchild; |
878 | else break; | |
879 | } | |
880 | } | |
d5783c40 JB |
881 | /* Which windows are acceptible? |
882 | Exit the loop and accept this window if | |
7ab12479 | 883 | this isn't a minibuffer window, or |
d5783c40 JB |
884 | we're accepting minibuffer windows, or |
885 | we've come all the way around and we're back at the original window. */ | |
7ab12479 | 886 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 887 | && ! EQ (minibuf, Qt) |
7f4161e0 | 888 | && ! EQ (window, start_window)); |
7ab12479 JB |
889 | |
890 | return window; | |
891 | } | |
892 | ||
893 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, | |
d5783c40 JB |
894 | "Return the window preceeding WINDOW in canonical ordering of windows.\n\ |
895 | If omitted, WINDOW defaults to the selected window.\n\ | |
896 | \n\ | |
897 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
898 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
899 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
900 | minibuffer even if it is active.\n\ | |
901 | \n\ | |
44fa5b1e JB |
902 | Several frames may share a single minibuffer; if the minibuffer\n\ |
903 | counts, all windows on all frames that share that minibuffer count\n\ | |
d5783c40 | 904 | too. This means that previous-window may be used to iterate through\n\ |
44fa5b1e JB |
905 | the set of windows even when the minibuffer is on another frame. If\n\ |
906 | the minibuffer does not count, only windows from WINDOW's frame\n\ | |
d5783c40 JB |
907 | count.\n\ |
908 | \n\ | |
44fa5b1e JB |
909 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
910 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
911 | above. If neither nil nor t, restrict to WINDOW's frame.") | |
912 | (window, minibuf, all_frames) | |
913 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
914 | { |
915 | register Lisp_Object tem; | |
d5783c40 | 916 | Lisp_Object start_window; |
7ab12479 | 917 | |
265a9e55 | 918 | if (NILP (window)) |
7ab12479 JB |
919 | window = selected_window; |
920 | else | |
605be8af | 921 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 922 | |
d5783c40 JB |
923 | start_window = window; |
924 | ||
925 | /* minibuf == nil may or may not include minibuffers. | |
926 | Decide if it does. */ | |
265a9e55 | 927 | if (NILP (minibuf)) |
d5783c40 JB |
928 | minibuf = (minibuf_level ? Qt : Qlambda); |
929 | ||
44fa5b1e JB |
930 | /* all_frames == nil doesn't specify which frames to include. |
931 | Decide which frames it includes. */ | |
932 | if (NILP (all_frames)) | |
933 | all_frames = (EQ (minibuf, Qt) | |
934 | ? (FRAME_MINIBUF_WINDOW | |
935 | (XFRAME | |
936 | (WINDOW_FRAME | |
d5783c40 JB |
937 | (XWINDOW (window))))) |
938 | : Qnil); | |
44fa5b1e JB |
939 | else if (! EQ (all_frames, Qt)) |
940 | all_frames = Qnil; | |
7ab12479 JB |
941 | |
942 | /* Do this loop at least once, to get the previous window, and perhaps | |
943 | again, if we hit the minibuffer and that is not acceptable. */ | |
944 | do | |
945 | { | |
946 | /* Find a window that actually has a previous one. This loop | |
947 | climbs up the tree. */ | |
265a9e55 JB |
948 | while (tem = XWINDOW (window)->prev, NILP (tem)) |
949 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 950 | window = tem; |
d5783c40 | 951 | else |
7ab12479 | 952 | { |
44fa5b1e JB |
953 | /* We have found the top window on the frame. |
954 | Which frames are acceptable? */ | |
955 | tem = WINDOW_FRAME (XWINDOW (window)); | |
956 | #ifdef MULTI_FRAME | |
957 | if (! NILP (all_frames)) | |
958 | tem = next_frame (tem, all_frames); | |
7ab12479 | 959 | #endif |
44fa5b1e | 960 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 961 | |
7ab12479 JB |
962 | break; |
963 | } | |
964 | ||
965 | window = tem; | |
966 | /* If we're in a combination window, find its last child and | |
967 | recurse on that. Otherwise, we've found the window we want. */ | |
968 | while (1) | |
969 | { | |
265a9e55 | 970 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 971 | window = XWINDOW (window)->hchild; |
265a9e55 | 972 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
973 | window = XWINDOW (window)->vchild; |
974 | else break; | |
265a9e55 | 975 | while (tem = XWINDOW (window)->next, !NILP (tem)) |
7ab12479 JB |
976 | window = tem; |
977 | } | |
978 | } | |
d5783c40 JB |
979 | /* Which windows are acceptable? |
980 | Exit the loop and accept this window if | |
7ab12479 | 981 | this isn't a minibuffer window, or |
d5783c40 JB |
982 | we're accepting minibuffer windows, or |
983 | we've come all the way around and we're back at the original window. */ | |
7ab12479 | 984 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 985 | && !EQ (minibuf, Qt) |
7f4161e0 | 986 | && !EQ (window, start_window)); |
7ab12479 JB |
987 | |
988 | return window; | |
989 | } | |
990 | ||
62c07cc7 | 991 | DEFUN ("other-window", Fother_window, Sother_window, 1, 2, "p", |
44fa5b1e JB |
992 | "Select the ARG'th different window on this frame.\n\ |
993 | All windows on current frame are arranged in a cyclic order.\n\ | |
7ab12479 JB |
994 | This command selects the window ARG steps away in that order.\n\ |
995 | A negative ARG moves in the opposite order. If the optional second\n\ | |
44fa5b1e JB |
996 | argument ALL_FRAMES is non-nil, cycle through all frames.") |
997 | (n, all_frames) | |
998 | register Lisp_Object n, all_frames; | |
7ab12479 JB |
999 | { |
1000 | register int i; | |
1001 | register Lisp_Object w; | |
1002 | ||
1003 | CHECK_NUMBER (n, 0); | |
1004 | w = selected_window; | |
1005 | i = XINT (n); | |
1006 | ||
1007 | while (i > 0) | |
1008 | { | |
44fa5b1e | 1009 | w = Fnext_window (w, Qnil, all_frames); |
7ab12479 JB |
1010 | i--; |
1011 | } | |
1012 | while (i < 0) | |
1013 | { | |
44fa5b1e | 1014 | w = Fprevious_window (w, Qnil, all_frames); |
7ab12479 JB |
1015 | i++; |
1016 | } | |
1017 | Fselect_window (w); | |
1018 | return Qnil; | |
1019 | } | |
1020 | \f | |
1021 | /* Look at all windows, performing an operation specified by TYPE | |
1022 | with argument OBJ. | |
44fa5b1e JB |
1023 | If FRAMES is Qt, look at all frames, if Qnil, look at just the selected |
1024 | frame. If FRAMES is a frame, just look at windows on that frame. | |
7ab12479 JB |
1025 | If MINI is non-zero, perform the operation on minibuffer windows too. |
1026 | */ | |
1027 | ||
1028 | enum window_loop | |
1029 | { | |
1030 | WINDOW_LOOP_UNUSED, | |
1031 | GET_BUFFER_WINDOW, /* Arg is buffer */ | |
1032 | GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
1033 | DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
1034 | DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
1035 | GET_LARGEST_WINDOW, | |
1036 | UNSHOW_BUFFER, /* Arg is buffer */ | |
1037 | }; | |
1038 | ||
1039 | static Lisp_Object | |
44fa5b1e | 1040 | window_loop (type, obj, mini, frames) |
7ab12479 | 1041 | enum window_loop type; |
44fa5b1e | 1042 | register Lisp_Object obj, frames; |
7ab12479 JB |
1043 | int mini; |
1044 | { | |
1045 | register Lisp_Object w; | |
1046 | register Lisp_Object best_window; | |
1047 | register Lisp_Object next_window; | |
4b206065 | 1048 | register Lisp_Object last_window; |
44fa5b1e JB |
1049 | FRAME_PTR frame; |
1050 | ||
4b206065 | 1051 | #ifdef MULTI_FRAME |
44fa5b1e JB |
1052 | /* If we're only looping through windows on a particular frame, |
1053 | frame points to that frame. If we're looping through windows | |
1054 | on all frames, frame is 0. */ | |
1055 | if (FRAMEP (frames)) | |
1056 | frame = XFRAME (frames); | |
1057 | else if (NILP (frames)) | |
1058 | frame = selected_frame; | |
7ab12479 | 1059 | else |
44fa5b1e | 1060 | frame = 0; |
4b206065 JB |
1061 | #else |
1062 | frame = 0; | |
1063 | #endif | |
7ab12479 JB |
1064 | |
1065 | /* Pick a window to start with. */ | |
1066 | if (XTYPE (obj) == Lisp_Window) | |
4b206065 | 1067 | w = obj; |
44fa5b1e | 1068 | else if (frame) |
4b206065 | 1069 | w = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 1070 | else |
4b206065 JB |
1071 | w = FRAME_SELECTED_WINDOW (selected_frame); |
1072 | ||
1073 | /* Figure out the last window we're going to mess with. Since | |
1074 | Fnext_window, given the same options, is guaranteed to go in a | |
1075 | ring, we can just use Fprevious_window to find the last one. | |
1076 | ||
1077 | We can't just wait until we hit the first window again, because | |
1078 | it might be deleted. */ | |
1079 | ||
1080 | #ifdef MULTI_FRAME | |
1081 | if (frame) | |
1082 | last_window = Fprevious_window (w, (mini ? Qt : Qnil), Qlambda); | |
1083 | else | |
1084 | #endif /* MULTI_FRAME */ | |
1085 | /* We know frame is 0, so we're looping through all frames. | |
1086 | Or we know this isn't a MULTI_FRAME Emacs, so who cares? */ | |
1087 | last_window = Fprevious_window (w, mini ? Qt : Qnil, Qt); | |
7ab12479 | 1088 | |
7ab12479 | 1089 | best_window = Qnil; |
4b206065 | 1090 | for (;;) |
7ab12479 JB |
1091 | { |
1092 | /* Pick the next window now, since some operations will delete | |
1093 | the current window. */ | |
44fa5b1e JB |
1094 | #ifdef MULTI_FRAME |
1095 | if (frame) | |
d5783c40 | 1096 | next_window = Fnext_window (w, (mini ? Qt : Qnil), Qlambda); |
7ab12479 | 1097 | else |
4b206065 | 1098 | #endif /* MULTI_FRAME */ |
44fa5b1e JB |
1099 | /* We know frame is 0, so we're looping through all frames. |
1100 | Or we know this isn't a MULTI_FRAME Emacs, so who cares? */ | |
7ab12479 JB |
1101 | next_window = Fnext_window (w, mini ? Qt : Qnil, Qt); |
1102 | ||
1103 | if (!MINI_WINDOW_P (XWINDOW (w)) | |
1104 | || (mini && minibuf_level > 0)) | |
1105 | switch (type) | |
1106 | { | |
1107 | case GET_BUFFER_WINDOW: | |
1108 | #if 0 | |
44fa5b1e JB |
1109 | /* Ignore invisible and iconified frames. */ |
1110 | if (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (w)))) | |
1111 | || FRAME_ICONIFIED_P (XFRAME (WINDOW_FRAME (XWINDOW (w))))) | |
7ab12479 JB |
1112 | break; |
1113 | #endif | |
1114 | if (XBUFFER (XWINDOW (w)->buffer) == XBUFFER (obj)) | |
1115 | return w; | |
1116 | break; | |
1117 | ||
1118 | case GET_LRU_WINDOW: | |
1119 | /* t as arg means consider only full-width windows */ | |
e5d77022 | 1120 | if (!NILP (obj) && XFASTINT (XWINDOW (w)->width) |
44fa5b1e | 1121 | != FRAME_WIDTH (frame)) |
7ab12479 JB |
1122 | break; |
1123 | #if 0 | |
44fa5b1e JB |
1124 | /* Ignore invisible and iconified frames. */ |
1125 | if (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (w)))) | |
1126 | || FRAME_ICONIFIED_P (XFRAME (WINDOW_FRAME (XWINDOW (w))))) | |
7ab12479 JB |
1127 | break; |
1128 | #endif | |
1129 | /* Ignore dedicated windows and minibuffers. */ | |
1130 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1131 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 | 1132 | break; |
265a9e55 | 1133 | if (NILP (best_window) |
7ab12479 JB |
1134 | || (XFASTINT (XWINDOW (best_window)->use_time) |
1135 | > XFASTINT (XWINDOW (w)->use_time))) | |
1136 | best_window = w; | |
1137 | break; | |
1138 | ||
1139 | case DELETE_OTHER_WINDOWS: | |
1140 | if (XWINDOW (w) != XWINDOW (obj)) | |
1141 | Fdelete_window (w); | |
1142 | break; | |
1143 | ||
1144 | case DELETE_BUFFER_WINDOWS: | |
1145 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1146 | { | |
1147 | /* If we're deleting the buffer displayed in the only window | |
44fa5b1e | 1148 | on the frame, find a new buffer to display there. */ |
265a9e55 | 1149 | if (NILP (XWINDOW (w)->parent)) |
7ab12479 | 1150 | { |
faa64cf7 | 1151 | Lisp_Object new_buffer = Fother_buffer (obj, Qnil); |
265a9e55 | 1152 | if (NILP (new_buffer)) |
7ab12479 JB |
1153 | new_buffer |
1154 | = Fget_buffer_create (build_string ("*scratch*")); | |
1155 | Fset_window_buffer (w, new_buffer); | |
1156 | Fset_buffer (XWINDOW (w)->buffer); | |
1157 | } | |
1158 | else | |
1159 | Fdelete_window (w); | |
1160 | } | |
1161 | break; | |
1162 | ||
1163 | case GET_LARGEST_WINDOW: | |
1164 | #if 0 | |
44fa5b1e JB |
1165 | /* Ignore invisible and iconified frames. */ |
1166 | if (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (w)))) | |
1167 | || FRAME_ICONIFIED_P (XFRAME (WINDOW_FRAME (XWINDOW (w))))) | |
7ab12479 JB |
1168 | break; |
1169 | #endif | |
1170 | /* Ignore dedicated windows and minibuffers. */ | |
1171 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1172 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 JB |
1173 | break; |
1174 | { | |
1175 | struct window *best_window_ptr = XWINDOW (best_window); | |
1176 | struct window *w_ptr = XWINDOW (w); | |
265a9e55 | 1177 | if (NILP (best_window) || |
7ab12479 JB |
1178 | (XFASTINT (w_ptr->height) * XFASTINT (w_ptr->width)) |
1179 | > (XFASTINT (best_window_ptr->height) | |
1180 | * XFASTINT (best_window_ptr->width))) | |
1181 | best_window = w; | |
1182 | } | |
1183 | break; | |
1184 | ||
1185 | case UNSHOW_BUFFER: | |
1186 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1187 | { | |
1188 | /* Find another buffer to show in this window. */ | |
faa64cf7 | 1189 | Lisp_Object another_buffer = Fother_buffer (obj, Qnil); |
265a9e55 | 1190 | if (NILP (another_buffer)) |
7ab12479 JB |
1191 | another_buffer |
1192 | = Fget_buffer_create (build_string ("*scratch*")); | |
1193 | Fset_window_buffer (w, another_buffer); | |
1194 | if (EQ (w, selected_window)) | |
1195 | Fset_buffer (XWINDOW (w)->buffer); | |
1196 | } | |
1197 | break; | |
1198 | } | |
4b206065 JB |
1199 | |
1200 | if (EQ (w, last_window)) | |
1201 | break; | |
1202 | ||
7ab12479 JB |
1203 | w = next_window; |
1204 | } | |
7ab12479 JB |
1205 | |
1206 | return best_window; | |
1207 | } | |
605be8af | 1208 | |
7ab12479 JB |
1209 | DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0, |
1210 | "Return the window least recently selected or used for display.\n\ | |
44fa5b1e JB |
1211 | If optional argument FRAMES is t, search all frames. If FRAME is a\n\ |
1212 | frame, search only that frame.\n") | |
1213 | (frames) | |
1214 | Lisp_Object frames; | |
7ab12479 JB |
1215 | { |
1216 | register Lisp_Object w; | |
1217 | /* First try for a window that is full-width */ | |
44fa5b1e | 1218 | w = window_loop (GET_LRU_WINDOW, Qt, 0, frames); |
265a9e55 | 1219 | if (!NILP (w) && !EQ (w, selected_window)) |
7ab12479 JB |
1220 | return w; |
1221 | /* If none of them, try the rest */ | |
44fa5b1e | 1222 | return window_loop (GET_LRU_WINDOW, Qnil, 0, frames); |
7ab12479 JB |
1223 | } |
1224 | ||
1225 | DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 1, 0, | |
1226 | "Return the largest window in area.\n\ | |
44fa5b1e JB |
1227 | If optional argument FRAMES is t, search all frames. If FRAME is a\n\ |
1228 | frame, search only that frame.\n") | |
1229 | (frame) | |
1230 | Lisp_Object frame; | |
7ab12479 JB |
1231 | { |
1232 | return window_loop (GET_LARGEST_WINDOW, Qnil, 0, | |
44fa5b1e | 1233 | frame); |
7ab12479 JB |
1234 | } |
1235 | ||
1236 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 2, 0, | |
1237 | "Return a window currently displaying BUFFER, or nil if none.\n\ | |
44fa5b1e JB |
1238 | If optional argument FRAMES is t, search all frames. If FRAME is a\n\ |
1239 | frame, search only that frame.\n") | |
1240 | (buffer, frame) | |
1241 | Lisp_Object buffer, frame; | |
7ab12479 JB |
1242 | { |
1243 | buffer = Fget_buffer (buffer); | |
1244 | if (XTYPE (buffer) == Lisp_Buffer) | |
44fa5b1e | 1245 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame); |
7ab12479 JB |
1246 | else |
1247 | return Qnil; | |
1248 | } | |
1249 | ||
1250 | DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows, | |
1251 | 0, 1, "", | |
44fa5b1e JB |
1252 | "Make WINDOW (or the selected window) fill its frame.\n\ |
1253 | Only the frame WINDOW is on is affected.") | |
7ab12479 JB |
1254 | (window) |
1255 | Lisp_Object window; | |
1256 | { | |
1257 | struct window *w; | |
1258 | int opoint = point; | |
1259 | struct buffer *obuf = current_buffer; | |
1260 | int top; | |
1261 | ||
265a9e55 | 1262 | if (NILP (window)) |
7ab12479 JB |
1263 | window = selected_window; |
1264 | else | |
605be8af | 1265 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1266 | |
1267 | w = XWINDOW (window); | |
1268 | top = XFASTINT (w->top); | |
1269 | ||
44fa5b1e | 1270 | window_loop (DELETE_OTHER_WINDOWS, window, 0, WINDOW_FRAME(w)); |
7ab12479 JB |
1271 | |
1272 | Fset_buffer (w->buffer); | |
1273 | SET_PT (marker_position (w->start)); | |
1274 | Frecenter (make_number (top)); | |
1275 | ||
1276 | set_buffer_internal (obuf); | |
1277 | SET_PT (opoint); | |
1278 | return Qnil; | |
1279 | } | |
1280 | ||
1281 | DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on, | |
1282 | 1, 1, "bDelete windows on (buffer): ", | |
1283 | "Delete all windows showing BUFFER.") | |
1284 | (buffer) | |
1285 | Lisp_Object buffer; | |
1286 | { | |
265a9e55 | 1287 | if (!NILP (buffer)) |
7ab12479 JB |
1288 | { |
1289 | buffer = Fget_buffer (buffer); | |
1290 | CHECK_BUFFER (buffer, 0); | |
1291 | window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, Qt); | |
1292 | } | |
1293 | return Qnil; | |
1294 | } | |
1295 | ||
1296 | DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, | |
1297 | Sreplace_buffer_in_windows, | |
1298 | 1, 1, "bReplace buffer in windows: ", | |
1299 | "Replace BUFFER with some other buffer in all windows showing it.") | |
1300 | (buffer) | |
1301 | Lisp_Object buffer; | |
1302 | { | |
265a9e55 | 1303 | if (!NILP (buffer)) |
7ab12479 JB |
1304 | { |
1305 | buffer = Fget_buffer (buffer); | |
1306 | CHECK_BUFFER (buffer, 0); | |
1307 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1308 | } | |
1309 | return Qnil; | |
1310 | } | |
1311 | \f | |
1312 | /* Set the height of WINDOW and all its inferiors. */ | |
a481b3ea JB |
1313 | |
1314 | /* The smallest acceptable dimensions for a window. Anything smaller | |
1315 | might crash Emacs. */ | |
1316 | #define MIN_SAFE_WINDOW_WIDTH (2) | |
1317 | #define MIN_SAFE_WINDOW_HEIGHT (2) | |
1318 | ||
1319 | /* Make sure that window_min_height and window_min_width are | |
1320 | not too small; if they are, set them to safe minima. */ | |
1321 | ||
1322 | static void | |
1323 | check_min_window_sizes () | |
1324 | { | |
1325 | /* Smaller values might permit a crash. */ | |
1326 | if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
1327 | window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
1328 | if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
1329 | window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
1330 | } | |
1331 | ||
1332 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the | |
1333 | minimum allowable size. */ | |
605be8af | 1334 | void |
a481b3ea | 1335 | check_frame_size (frame, rows, cols) |
605be8af JB |
1336 | FRAME_PTR frame; |
1337 | int *rows, *cols; | |
a481b3ea JB |
1338 | { |
1339 | /* For height, we have to see whether the frame has a minibuffer, and | |
1340 | whether it wants a mode line. */ | |
1341 | int min_height = | |
1342 | ((FRAME_MINIBUF_ONLY_P (frame) | |
1343 | || ! FRAME_HAS_MINIBUF_P (frame)) | |
1344 | ? MIN_SAFE_WINDOW_HEIGHT | |
1345 | : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); | |
1346 | ||
1347 | if (*rows < min_height) | |
1348 | *rows = min_height; | |
1349 | if (*cols < MIN_SAFE_WINDOW_WIDTH) | |
1350 | *cols = MIN_SAFE_WINDOW_WIDTH; | |
1351 | } | |
1352 | ||
7ab12479 JB |
1353 | /* Normally the window is deleted if it gets too small. |
1354 | nodelete nonzero means do not do this. | |
1355 | (The caller should check later and do so if appropriate) */ | |
1356 | ||
1357 | set_window_height (window, height, nodelete) | |
1358 | Lisp_Object window; | |
1359 | int height; | |
1360 | int nodelete; | |
1361 | { | |
1362 | register struct window *w = XWINDOW (window); | |
1363 | register struct window *c; | |
1364 | int oheight = XFASTINT (w->height); | |
1365 | int top, pos, lastbot, opos, lastobot; | |
1366 | Lisp_Object child; | |
1367 | ||
a481b3ea JB |
1368 | check_min_window_sizes (); |
1369 | ||
7ab12479 | 1370 | if (!nodelete |
265a9e55 | 1371 | && ! NILP (w->parent) |
7ab12479 JB |
1372 | && height < window_min_height) |
1373 | { | |
1374 | Fdelete_window (window); | |
1375 | return; | |
1376 | } | |
1377 | ||
1378 | XFASTINT (w->last_modified) = 0; | |
1379 | windows_or_buffers_changed++; | |
1380 | XFASTINT (w->height) = height; | |
265a9e55 | 1381 | if (!NILP (w->hchild)) |
7ab12479 | 1382 | { |
265a9e55 | 1383 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1384 | { |
1385 | XWINDOW (child)->top = w->top; | |
1386 | set_window_height (child, height, nodelete); | |
1387 | } | |
1388 | } | |
265a9e55 | 1389 | else if (!NILP (w->vchild)) |
7ab12479 JB |
1390 | { |
1391 | lastbot = top = XFASTINT (w->top); | |
1392 | lastobot = 0; | |
265a9e55 | 1393 | for (child = w->vchild; !NILP (child); child = c->next) |
7ab12479 JB |
1394 | { |
1395 | c = XWINDOW (child); | |
1396 | ||
1397 | opos = lastobot + XFASTINT (c->height); | |
1398 | ||
1399 | XFASTINT (c->top) = lastbot; | |
1400 | ||
1401 | pos = (((opos * height) << 1) + oheight) / (oheight << 1); | |
1402 | ||
1403 | /* Avoid confusion: inhibit deletion of child if becomes too small */ | |
1404 | set_window_height (child, pos + top - lastbot, 1); | |
1405 | ||
1406 | /* Now advance child to next window, | |
1407 | and set lastbot if child was not just deleted. */ | |
1408 | lastbot = pos + top; | |
1409 | lastobot = opos; | |
1410 | } | |
1411 | /* Now delete any children that became too small. */ | |
1412 | if (!nodelete) | |
265a9e55 | 1413 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1414 | { |
1415 | set_window_height (child, XINT (XWINDOW (child)->height), 0); | |
1416 | } | |
1417 | } | |
1418 | } | |
1419 | ||
1420 | /* Recursively set width of WINDOW and its inferiors. */ | |
1421 | ||
1422 | set_window_width (window, width, nodelete) | |
1423 | Lisp_Object window; | |
1424 | int width; | |
1425 | int nodelete; | |
1426 | { | |
1427 | register struct window *w = XWINDOW (window); | |
1428 | register struct window *c; | |
1429 | int owidth = XFASTINT (w->width); | |
1430 | int left, pos, lastright, opos, lastoright; | |
1431 | Lisp_Object child; | |
1432 | ||
1433 | if (!nodelete && width < window_min_width) | |
1434 | { | |
1435 | Fdelete_window (window); | |
1436 | return; | |
1437 | } | |
1438 | ||
1439 | XFASTINT (w->last_modified) = 0; | |
1440 | windows_or_buffers_changed++; | |
1441 | XFASTINT (w->width) = width; | |
265a9e55 | 1442 | if (!NILP (w->vchild)) |
7ab12479 | 1443 | { |
265a9e55 | 1444 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1445 | { |
1446 | XWINDOW (child)->left = w->left; | |
1447 | set_window_width (child, width, nodelete); | |
1448 | } | |
1449 | } | |
265a9e55 | 1450 | else if (!NILP (w->hchild)) |
7ab12479 JB |
1451 | { |
1452 | lastright = left = XFASTINT (w->left); | |
1453 | lastoright = 0; | |
265a9e55 | 1454 | for (child = w->hchild; !NILP (child); child = c->next) |
7ab12479 JB |
1455 | { |
1456 | c = XWINDOW (child); | |
1457 | ||
1458 | opos = lastoright + XFASTINT (c->width); | |
1459 | ||
1460 | XFASTINT (c->left) = lastright; | |
1461 | ||
1462 | pos = (((opos * width) << 1) + owidth) / (owidth << 1); | |
1463 | ||
1464 | /* Inhibit deletion for becoming too small */ | |
1465 | set_window_width (child, pos + left - lastright, 1); | |
1466 | ||
1467 | /* Now advance child to next window, | |
1468 | and set lastright if child was not just deleted. */ | |
1469 | lastright = pos + left, lastoright = opos; | |
1470 | } | |
1471 | /* Delete children that became too small */ | |
1472 | if (!nodelete) | |
265a9e55 | 1473 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1474 | { |
1475 | set_window_width (child, XINT (XWINDOW (child)->width), 0); | |
1476 | } | |
1477 | } | |
1478 | } | |
1479 | \f | |
1d8d96fa | 1480 | int window_select_count; |
7ab12479 JB |
1481 | |
1482 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0, | |
1483 | "Make WINDOW display BUFFER as its contents.\n\ | |
1484 | BUFFER can be a buffer or buffer name.") | |
1485 | (window, buffer) | |
1486 | register Lisp_Object window, buffer; | |
1487 | { | |
1488 | register Lisp_Object tem; | |
1489 | register struct window *w = decode_window (window); | |
1490 | ||
1491 | buffer = Fget_buffer (buffer); | |
1492 | CHECK_BUFFER (buffer, 1); | |
1493 | ||
265a9e55 | 1494 | if (NILP (XBUFFER (buffer)->name)) |
7ab12479 JB |
1495 | error ("Attempt to display deleted buffer"); |
1496 | ||
1497 | tem = w->buffer; | |
265a9e55 | 1498 | if (NILP (tem)) |
7ab12479 JB |
1499 | error ("Window is deleted"); |
1500 | else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
1501 | is first being set up. */ | |
1502 | { | |
265a9e55 | 1503 | if (!NILP (w->dedicated) && !EQ (tem, buffer)) |
7ab12479 JB |
1504 | error ("Window is dedicated to %s\n", tem); |
1505 | ||
1506 | unshow_buffer (w); | |
1507 | } | |
1508 | ||
1509 | w->buffer = buffer; | |
1510 | Fset_marker (w->pointm, | |
1511 | make_number (BUF_PT (XBUFFER (buffer))), | |
1512 | buffer); | |
1513 | set_marker_restricted (w->start, | |
1514 | make_number (XBUFFER (buffer)->last_window_start), | |
1515 | buffer); | |
1516 | w->start_at_line_beg = Qnil; | |
1517 | XFASTINT (w->last_modified) = 0; | |
1518 | windows_or_buffers_changed++; | |
1519 | if (EQ (window, selected_window)) | |
1520 | Fset_buffer (buffer); | |
1521 | ||
1522 | return Qnil; | |
1523 | } | |
1524 | ||
1525 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0, | |
1526 | "Select WINDOW. Most editing will apply to WINDOW's buffer.\n\ | |
1527 | The main editor command loop selects the buffer of the selected window\n\ | |
1528 | before each command.") | |
1529 | (window) | |
1530 | register Lisp_Object window; | |
1531 | { | |
1532 | register struct window *w; | |
1533 | register struct window *ow = XWINDOW (selected_window); | |
1534 | ||
605be8af | 1535 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1536 | |
1537 | w = XWINDOW (window); | |
1538 | ||
265a9e55 | 1539 | if (NILP (w->buffer)) |
7ab12479 JB |
1540 | error ("Trying to select deleted window or non-leaf window"); |
1541 | ||
1542 | XFASTINT (w->use_time) = ++window_select_count; | |
1543 | if (EQ (window, selected_window)) | |
1544 | return window; | |
1545 | ||
1546 | Fset_marker (ow->pointm, make_number (BUF_PT (XBUFFER (ow->buffer))), | |
1547 | ow->buffer); | |
1548 | ||
1549 | selected_window = window; | |
44fa5b1e JB |
1550 | #ifdef MULTI_FRAME |
1551 | if (XFRAME (WINDOW_FRAME (w)) != selected_frame) | |
7ab12479 | 1552 | { |
44fa5b1e JB |
1553 | XFRAME (WINDOW_FRAME (w))->selected_window = window; |
1554 | Fselect_frame (WINDOW_FRAME (w), Qnil); | |
7ab12479 JB |
1555 | } |
1556 | else | |
44fa5b1e | 1557 | selected_frame->selected_window = window; |
7ab12479 JB |
1558 | #endif |
1559 | ||
1560 | record_buffer (w->buffer); | |
1561 | Fset_buffer (w->buffer); | |
1562 | ||
1563 | /* Go to the point recorded in the window. | |
1564 | This is important when the buffer is in more | |
1565 | than one window. It also matters when | |
1566 | redisplay_window has altered point after scrolling, | |
1567 | because it makes the change only in the window. */ | |
1568 | { | |
1569 | register int new_point = marker_position (w->pointm); | |
1570 | if (new_point < BEGV) | |
1571 | SET_PT (BEGV); | |
1572 | if (new_point > ZV) | |
1573 | SET_PT (ZV); | |
1574 | else | |
1575 | SET_PT (new_point); | |
1576 | } | |
1577 | ||
1578 | windows_or_buffers_changed++; | |
1579 | return window; | |
1580 | } | |
1581 | ||
35aaf00c RM |
1582 | DEFUN ("display-buffer", Fdisplay_buffer, Sdisplay_buffer, 1, 2, |
1583 | "BDisplay buffer:\nP", | |
7ab12479 JB |
1584 | "Make BUFFER appear in some window but don't select it.\n\ |
1585 | BUFFER can be a buffer or a buffer name.\n\ | |
1586 | If BUFFER is shown already in some window, just use that one,\n\ | |
1587 | unless the window is the selected window and the optional second\n\ | |
1588 | argument NOT_THIS_WINDOW is non-nil.\n\ | |
1589 | Returns the window displaying BUFFER.") | |
1590 | (buffer, not_this_window) | |
1591 | register Lisp_Object buffer, not_this_window; | |
1592 | { | |
1593 | register Lisp_Object window; | |
1594 | ||
1595 | buffer = Fget_buffer (buffer); | |
1596 | CHECK_BUFFER (buffer, 0); | |
1597 | ||
265a9e55 | 1598 | if (!NILP (Vdisplay_buffer_function)) |
7ab12479 JB |
1599 | return call2 (Vdisplay_buffer_function, buffer, not_this_window); |
1600 | ||
265a9e55 | 1601 | if (NILP (not_this_window) |
7ab12479 JB |
1602 | && XBUFFER (XWINDOW (selected_window)->buffer) == XBUFFER (buffer)) |
1603 | return selected_window; | |
1604 | ||
1605 | window = Fget_buffer_window (buffer, Qnil); | |
265a9e55 JB |
1606 | if (!NILP (window) |
1607 | && (NILP (not_this_window) || !EQ (window, selected_window))) | |
7ab12479 JB |
1608 | return window; |
1609 | ||
44fa5b1e JB |
1610 | #ifdef MULTI_FRAME |
1611 | /* If there are no frames open that have more than a minibuffer, | |
1612 | we need to create a new frame. */ | |
1613 | if (pop_up_frames || last_nonminibuf_frame == 0) | |
7ab12479 JB |
1614 | { |
1615 | window | |
44fa5b1e | 1616 | = Fframe_selected_window (call0 (Vpop_up_frame_function)); |
7ab12479 JB |
1617 | Fset_window_buffer (window, buffer); |
1618 | #if 0 | |
44fa5b1e | 1619 | Fselect_frame (XWINDOW (window)->frame, Qnil); |
7ab12479 JB |
1620 | #endif |
1621 | return window; | |
1622 | } | |
44fa5b1e | 1623 | #endif /* MULTI_FRAME */ |
7ab12479 | 1624 | |
43bad991 | 1625 | if (pop_up_windows |
44fa5b1e JB |
1626 | #ifdef MULTI_FRAME |
1627 | || FRAME_MINIBUF_ONLY_P (selected_frame) | |
43bad991 JB |
1628 | #endif |
1629 | ) | |
7ab12479 | 1630 | { |
44fa5b1e | 1631 | Lisp_Object frames = Qnil; |
43bad991 | 1632 | |
44fa5b1e JB |
1633 | #ifdef MULTI_FRAME |
1634 | if (FRAME_MINIBUF_ONLY_P (selected_frame)) | |
1635 | XSET (frames, Lisp_Frame, last_nonminibuf_frame); | |
7ab12479 JB |
1636 | #endif |
1637 | /* Don't try to create a window if would get an error */ | |
1638 | if (split_height_threshold < window_min_height << 1) | |
1639 | split_height_threshold = window_min_height << 1; | |
1640 | ||
44fa5b1e | 1641 | window = Fget_largest_window (frames); |
7ab12479 | 1642 | |
265a9e55 | 1643 | if (!NILP (window) |
7ab12479 | 1644 | && window_height (window) >= split_height_threshold |
535e0b8e JB |
1645 | && (XFASTINT (XWINDOW (window)->width) |
1646 | == FRAME_WIDTH (XFRAME (WINDOW_FRAME (XWINDOW (window)))))) | |
7ab12479 JB |
1647 | window = Fsplit_window (window, Qnil, Qnil); |
1648 | else | |
1649 | { | |
44fa5b1e | 1650 | window = Fget_lru_window (frames); |
7ab12479 JB |
1651 | if ((EQ (window, selected_window) |
1652 | || EQ (XWINDOW (window)->parent, Qnil)) | |
1653 | && window_height (window) >= window_min_height << 1) | |
1654 | window = Fsplit_window (window, Qnil, Qnil); | |
1655 | } | |
1656 | } | |
1657 | else | |
1658 | window = Fget_lru_window (Qnil); | |
1659 | ||
1660 | Fset_window_buffer (window, buffer); | |
1661 | return window; | |
1662 | } | |
1663 | ||
1664 | void | |
1665 | temp_output_buffer_show (buf) | |
1666 | register Lisp_Object buf; | |
1667 | { | |
1668 | register struct buffer *old = current_buffer; | |
1669 | register Lisp_Object window; | |
1670 | register struct window *w; | |
1671 | ||
1672 | Fset_buffer (buf); | |
1673 | XBUFFER (buf)->save_modified = MODIFF; | |
1674 | BEGV = BEG; | |
1675 | ZV = Z; | |
1676 | SET_PT (BEG); | |
1677 | clip_changed = 1; | |
1678 | set_buffer_internal (old); | |
1679 | ||
1680 | if (!EQ (Vtemp_buffer_show_function, Qnil)) | |
1681 | call1 (Vtemp_buffer_show_function, buf); | |
1682 | else | |
1683 | { | |
1684 | window = Fdisplay_buffer (buf, Qnil); | |
1685 | ||
44fa5b1e JB |
1686 | #ifdef MULTI_FRAME |
1687 | if (XFRAME (XWINDOW (window)->frame) != selected_frame) | |
1688 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
1689 | #endif /* MULTI_FRAME */ | |
7ab12479 JB |
1690 | Vminibuf_scroll_window = window; |
1691 | w = XWINDOW (window); | |
1692 | XFASTINT (w->hscroll) = 0; | |
1693 | set_marker_restricted (w->start, make_number (1), buf); | |
1694 | set_marker_restricted (w->pointm, make_number (1), buf); | |
1695 | } | |
1696 | } | |
1697 | \f | |
1698 | static | |
1699 | make_dummy_parent (window) | |
1700 | Lisp_Object window; | |
1701 | { | |
1702 | register Lisp_Object old, new; | |
1703 | register struct window *o, *p; | |
1704 | ||
1705 | old = window; | |
1706 | XSETTYPE (old, Lisp_Vector); | |
1707 | new = Fcopy_sequence (old); | |
1708 | XSETTYPE (new, Lisp_Window); | |
1709 | ||
1710 | o = XWINDOW (old); | |
1711 | p = XWINDOW (new); | |
1712 | XFASTINT (p->sequence_number) = ++sequence_number; | |
1713 | ||
1714 | /* Put new into window structure in place of window */ | |
1715 | replace_window (window, new); | |
1716 | ||
1717 | o->next = Qnil; | |
1718 | o->prev = Qnil; | |
1719 | o->vchild = Qnil; | |
1720 | o->hchild = Qnil; | |
1721 | o->parent = new; | |
1722 | ||
1723 | p->start = Qnil; | |
1724 | p->pointm = Qnil; | |
1725 | p->buffer = Qnil; | |
1726 | } | |
1727 | ||
1728 | DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "", | |
1729 | "Split WINDOW, putting SIZE lines in the first of the pair.\n\ | |
1730 | WINDOW defaults to selected one and SIZE to half its size.\n\ | |
1731 | If optional third arg HOR-FLAG is non-nil, split side by side\n\ | |
1732 | and put SIZE columns in the first of the pair.") | |
1733 | (window, chsize, horflag) | |
1734 | Lisp_Object window, chsize, horflag; | |
1735 | { | |
1736 | register Lisp_Object new; | |
1737 | register struct window *o, *p; | |
1738 | register int size; | |
1739 | ||
265a9e55 | 1740 | if (NILP (window)) |
7ab12479 JB |
1741 | window = selected_window; |
1742 | else | |
605be8af | 1743 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1744 | |
1745 | o = XWINDOW (window); | |
1746 | ||
265a9e55 | 1747 | if (NILP (chsize)) |
7ab12479 | 1748 | { |
265a9e55 | 1749 | if (!NILP (horflag)) |
7ab12479 JB |
1750 | /* Round odd size up, since this is for the left-hand window, |
1751 | and it will lose a column for the separators. */ | |
1752 | size = ((XFASTINT (o->width) + 1) & -2) >> 1; | |
1753 | else | |
1754 | size = XFASTINT (o->height) >> 1; | |
1755 | } | |
1756 | else | |
1757 | { | |
1758 | CHECK_NUMBER (chsize, 1); | |
1759 | size = XINT (chsize); | |
1760 | } | |
1761 | ||
1762 | if (MINI_WINDOW_P (o)) | |
1763 | error ("Attempt to split minibuffer window"); | |
44fa5b1e JB |
1764 | else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
1765 | error ("Attempt to split unsplittable frame"); | |
7ab12479 | 1766 | |
a481b3ea | 1767 | check_min_window_sizes (); |
7ab12479 | 1768 | |
265a9e55 | 1769 | if (NILP (horflag)) |
7ab12479 JB |
1770 | { |
1771 | if (size < window_min_height | |
1772 | || size + window_min_height > XFASTINT (o->height)) | |
1773 | args_out_of_range_3 (window, chsize, horflag); | |
265a9e55 JB |
1774 | if (NILP (o->parent) |
1775 | || NILP (XWINDOW (o->parent)->vchild)) | |
7ab12479 JB |
1776 | { |
1777 | make_dummy_parent (window); | |
1778 | new = o->parent; | |
1779 | XWINDOW (new)->vchild = window; | |
1780 | } | |
1781 | } | |
1782 | else | |
1783 | { | |
1784 | if (size < window_min_width | |
1785 | || size + window_min_width > XFASTINT (o->width)) | |
1786 | args_out_of_range_3 (window, chsize, horflag); | |
265a9e55 JB |
1787 | if (NILP (o->parent) |
1788 | || NILP (XWINDOW (o->parent)->hchild)) | |
7ab12479 JB |
1789 | { |
1790 | make_dummy_parent (window); | |
1791 | new = o->parent; | |
1792 | XWINDOW (new)->hchild = window; | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | /* Now we know that window's parent is a vertical combination | |
1797 | if we are dividing vertically, or a horizontal combination | |
1798 | if we are making side-by-side windows */ | |
1799 | ||
1800 | windows_or_buffers_changed++; | |
1801 | new = make_window (); | |
1802 | p = XWINDOW (new); | |
1803 | ||
44fa5b1e | 1804 | p->frame = o->frame; |
7ab12479 | 1805 | p->next = o->next; |
265a9e55 | 1806 | if (!NILP (p->next)) |
7ab12479 JB |
1807 | XWINDOW (p->next)->prev = new; |
1808 | p->prev = window; | |
1809 | o->next = new; | |
1810 | p->parent = o->parent; | |
1811 | p->buffer = Qt; | |
1812 | ||
1813 | Fset_window_buffer (new, o->buffer); | |
1814 | ||
44fa5b1e | 1815 | /* Apportion the available frame space among the two new windows */ |
7ab12479 | 1816 | |
265a9e55 | 1817 | if (!NILP (horflag)) |
7ab12479 JB |
1818 | { |
1819 | p->height = o->height; | |
1820 | p->top = o->top; | |
1821 | XFASTINT (p->width) = XFASTINT (o->width) - size; | |
1822 | XFASTINT (o->width) = size; | |
1823 | XFASTINT (p->left) = XFASTINT (o->left) + size; | |
1824 | } | |
1825 | else | |
1826 | { | |
1827 | p->left = o->left; | |
1828 | p->width = o->width; | |
1829 | XFASTINT (p->height) = XFASTINT (o->height) - size; | |
1830 | XFASTINT (o->height) = size; | |
1831 | XFASTINT (p->top) = XFASTINT (o->top) + size; | |
1832 | } | |
1833 | ||
1834 | return new; | |
1835 | } | |
1836 | \f | |
1837 | DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p", | |
1838 | "Make current window ARG lines bigger.\n\ | |
1839 | From program, optional second arg non-nil means grow sideways ARG columns.") | |
1840 | (n, side) | |
1841 | register Lisp_Object n, side; | |
1842 | { | |
1843 | CHECK_NUMBER (n, 0); | |
265a9e55 | 1844 | change_window_height (XINT (n), !NILP (side)); |
7ab12479 JB |
1845 | return Qnil; |
1846 | } | |
1847 | ||
1848 | DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p", | |
1849 | "Make current window ARG lines smaller.\n\ | |
1850 | From program, optional second arg non-nil means shrink sideways ARG columns.") | |
1851 | (n, side) | |
1852 | register Lisp_Object n, side; | |
1853 | { | |
1854 | CHECK_NUMBER (n, 0); | |
265a9e55 | 1855 | change_window_height (-XINT (n), !NILP (side)); |
7ab12479 JB |
1856 | return Qnil; |
1857 | } | |
1858 | ||
1859 | int | |
1860 | window_height (window) | |
1861 | Lisp_Object window; | |
1862 | { | |
1863 | register struct window *p = XWINDOW (window); | |
1864 | return XFASTINT (p->height); | |
1865 | } | |
1866 | ||
1867 | int | |
1868 | window_width (window) | |
1869 | Lisp_Object window; | |
1870 | { | |
1871 | register struct window *p = XWINDOW (window); | |
1872 | return XFASTINT (p->width); | |
1873 | } | |
1874 | ||
05c2896a JB |
1875 | #define MINSIZE(w) \ |
1876 | (widthflag \ | |
1877 | ? window_min_width \ | |
1878 | : (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)) | |
7ab12479 JB |
1879 | |
1880 | #define CURBEG(w) \ | |
05c2896a | 1881 | *(widthflag ? (int *) &(XWINDOW (w)->left) : (int *) &(XWINDOW (w)->top)) |
7ab12479 JB |
1882 | |
1883 | #define CURSIZE(w) \ | |
05c2896a | 1884 | *(widthflag ? (int *) &(XWINDOW (w)->width) : (int *) &(XWINDOW (w)->height)) |
7ab12479 JB |
1885 | |
1886 | /* Unlike set_window_height, this function | |
1887 | also changes the heights of the siblings so as to | |
1888 | keep everything consistent. */ | |
1889 | ||
1890 | change_window_height (delta, widthflag) | |
1891 | register int delta; | |
1892 | int widthflag; | |
1893 | { | |
1894 | register Lisp_Object parent; | |
1895 | Lisp_Object window; | |
1896 | register struct window *p; | |
1897 | int *sizep; | |
1898 | int (*sizefun) () = widthflag ? window_width : window_height; | |
1899 | register int (*setsizefun) () = (widthflag | |
1900 | ? set_window_width | |
1901 | : set_window_height); | |
1902 | ||
a481b3ea | 1903 | check_min_window_sizes (); |
7ab12479 JB |
1904 | |
1905 | window = selected_window; | |
1906 | while (1) | |
1907 | { | |
1908 | p = XWINDOW (window); | |
1909 | parent = p->parent; | |
265a9e55 | 1910 | if (NILP (parent)) |
7ab12479 JB |
1911 | { |
1912 | if (widthflag) | |
1913 | error ("No other window to side of this one"); | |
1914 | break; | |
1915 | } | |
265a9e55 JB |
1916 | if (widthflag ? !NILP (XWINDOW (parent)->hchild) |
1917 | : !NILP (XWINDOW (parent)->vchild)) | |
7ab12479 JB |
1918 | break; |
1919 | window = parent; | |
1920 | } | |
1921 | ||
05c2896a | 1922 | sizep = &CURSIZE (window); |
7ab12479 | 1923 | |
05c2896a | 1924 | if (*sizep + delta < MINSIZE (window)) |
7ab12479 JB |
1925 | { |
1926 | Fdelete_window (window); | |
1927 | return; | |
1928 | } | |
1929 | ||
1930 | { | |
1931 | register int maxdelta; | |
7ab12479 | 1932 | |
265a9e55 JB |
1933 | maxdelta = (!NILP (parent) ? (*sizefun) (parent) - *sizep |
1934 | : !NILP (p->next) ? (*sizefun) (p->next) - MINSIZE (p->next) | |
1935 | : !NILP (p->prev) ? (*sizefun) (p->prev) - MINSIZE (p->prev) | |
44fa5b1e JB |
1936 | /* This is a frame with only one window, a minibuffer-only |
1937 | or a minibufferless frame. */ | |
d5783c40 | 1938 | : (delta = 0)); |
7ab12479 JB |
1939 | |
1940 | if (delta > maxdelta) | |
1941 | /* This case traps trying to make the minibuffer | |
44fa5b1e JB |
1942 | the full frame, or make the only window aside from the |
1943 | minibuffer the full frame. */ | |
7ab12479 | 1944 | delta = maxdelta; |
d5783c40 JB |
1945 | |
1946 | if (delta == 0) | |
1947 | return; | |
7ab12479 JB |
1948 | } |
1949 | ||
265a9e55 | 1950 | if (!NILP (p->next) && |
7ab12479 JB |
1951 | (*sizefun) (p->next) - delta >= MINSIZE (p->next)) |
1952 | { | |
1953 | (*setsizefun) (p->next, (*sizefun) (p->next) - delta, 0); | |
1954 | (*setsizefun) (window, *sizep + delta, 0); | |
05c2896a | 1955 | CURBEG (p->next) += delta; |
7ab12479 JB |
1956 | /* This does not change size of p->next, |
1957 | but it propagates the new top edge to its children */ | |
1958 | (*setsizefun) (p->next, (*sizefun) (p->next), 0); | |
1959 | } | |
265a9e55 | 1960 | else if (!NILP (p->prev) && |
7ab12479 JB |
1961 | (*sizefun) (p->prev) - delta >= MINSIZE (p->prev)) |
1962 | { | |
1963 | (*setsizefun) (p->prev, (*sizefun) (p->prev) - delta, 0); | |
05c2896a | 1964 | CURBEG (window) -= delta; |
7ab12479 JB |
1965 | (*setsizefun) (window, *sizep + delta, 0); |
1966 | } | |
1967 | else | |
1968 | { | |
1969 | register int delta1; | |
1970 | register int opht = (*sizefun) (parent); | |
1971 | ||
1972 | /* If trying to grow this window to or beyond size of the parent, | |
1973 | make delta1 so big that, on shrinking back down, | |
1974 | all the siblings end up with less than one line and are deleted. */ | |
1975 | if (opht <= *sizep + delta) | |
1976 | delta1 = opht * opht * 2; | |
1977 | /* Otherwise, make delta1 just right so that if we add delta1 | |
1978 | lines to this window and to the parent, and then shrink | |
1979 | the parent back to its original size, the new proportional | |
1980 | size of this window will increase by delta. */ | |
1981 | else | |
1982 | delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
1983 | ||
1984 | /* Add delta1 lines or columns to this window, and to the parent, | |
1985 | keeping things consistent while not affecting siblings. */ | |
05c2896a | 1986 | CURSIZE (parent) = opht + delta1; |
7ab12479 JB |
1987 | (*setsizefun) (window, *sizep + delta1, 0); |
1988 | ||
1989 | /* Squeeze out delta1 lines or columns from our parent, | |
1990 | shriking this window and siblings proportionately. | |
1991 | This brings parent back to correct size. | |
1992 | Delta1 was calculated so this makes this window the desired size, | |
1993 | taking it all out of the siblings. */ | |
1994 | (*setsizefun) (parent, opht, 0); | |
1995 | } | |
1996 | ||
1997 | XFASTINT (p->last_modified) = 0; | |
1998 | } | |
1999 | #undef MINSIZE | |
2000 | #undef CURBEG | |
2001 | #undef CURSIZE | |
2002 | ||
2003 | \f | |
2004 | /* Return number of lines of text (not counting mode line) in W. */ | |
2005 | ||
2006 | int | |
2007 | window_internal_height (w) | |
2008 | struct window *w; | |
2009 | { | |
2010 | int ht = XFASTINT (w->height); | |
2011 | ||
2012 | if (MINI_WINDOW_P (w)) | |
2013 | return ht; | |
2014 | ||
265a9e55 JB |
2015 | if (!NILP (w->parent) || !NILP (w->vchild) || !NILP (w->hchild) |
2016 | || !NILP (w->next) || !NILP (w->prev) | |
44fa5b1e | 2017 | || FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (w)))) |
7ab12479 JB |
2018 | return ht - 1; |
2019 | ||
2020 | return ht; | |
2021 | } | |
2022 | ||
535e0b8e JB |
2023 | |
2024 | /* Return the number of columns in W. | |
2025 | Don't count columns occupied by scrollbars or the vertical bar | |
2026 | separating W from the sibling to its right. */ | |
2027 | int | |
2028 | window_internal_width (w) | |
2029 | struct window *w; | |
2030 | { | |
2031 | FRAME_PTR f = XFRAME (WINDOW_FRAME (w)); | |
2032 | int left = XINT (w->left); | |
2033 | int width = XINT (w->width); | |
2034 | ||
2035 | /* If this window is flush against the right edge of the frame, its | |
2036 | internal width is its full width. */ | |
2037 | if (left + width >= FRAME_WIDTH (f)) | |
2038 | return width; | |
2039 | ||
2040 | /* If we are not flush right, then our rightmost columns are | |
2041 | occupied by some sort of separator. */ | |
2042 | ||
2043 | /* Scrollbars occupy a few columns. */ | |
2044 | if (FRAME_HAS_VERTICAL_SCROLLBARS (f)) | |
2045 | return width - VERTICAL_SCROLLBAR_WIDTH; | |
2046 | ||
2047 | /* The column of `|' characters separating side-by-side windows | |
2048 | occupies one column only. */ | |
2049 | return width - 1; | |
2050 | } | |
2051 | ||
2052 | ||
7ab12479 JB |
2053 | /* Scroll contents of window WINDOW up N lines. */ |
2054 | ||
2055 | void | |
f8026fd8 | 2056 | window_scroll (window, n, noerror) |
7ab12479 JB |
2057 | Lisp_Object window; |
2058 | int n; | |
f8026fd8 | 2059 | int noerror; |
7ab12479 JB |
2060 | { |
2061 | register struct window *w = XWINDOW (window); | |
2062 | register int opoint = point; | |
2063 | register int pos; | |
2064 | register int ht = window_internal_height (w); | |
2065 | register Lisp_Object tem; | |
2066 | int lose; | |
2067 | Lisp_Object bolp, nmoved; | |
2068 | ||
2069 | XFASTINT (tem) = point; | |
2070 | tem = Fpos_visible_in_window_p (tem, window); | |
2071 | ||
265a9e55 | 2072 | if (NILP (tem)) |
7ab12479 JB |
2073 | { |
2074 | Fvertical_motion (make_number (- ht / 2)); | |
2075 | XFASTINT (tem) = point; | |
2076 | Fset_marker (w->start, tem, w->buffer); | |
2077 | w->force_start = Qt; | |
2078 | } | |
2079 | ||
2080 | SET_PT (marker_position (w->start)); | |
2081 | lose = n < 0 && point == BEGV; | |
2082 | Fvertical_motion (make_number (n)); | |
2083 | pos = point; | |
2084 | bolp = Fbolp (); | |
2085 | SET_PT (opoint); | |
2086 | ||
2087 | if (lose) | |
f8026fd8 JB |
2088 | { |
2089 | if (noerror) | |
2090 | return; | |
2091 | else | |
2092 | Fsignal (Qbeginning_of_buffer, Qnil); | |
2093 | } | |
7ab12479 JB |
2094 | |
2095 | if (pos < ZV) | |
7ab12479 JB |
2096 | { |
2097 | set_marker_restricted (w->start, make_number (pos), w->buffer); | |
2098 | w->start_at_line_beg = bolp; | |
2099 | w->update_mode_line = Qt; | |
2100 | XFASTINT (w->last_modified) = 0; | |
2101 | if (pos > opoint) | |
2102 | SET_PT (pos); | |
2103 | if (n < 0) | |
2104 | { | |
2105 | SET_PT (pos); | |
2106 | tem = Fvertical_motion (make_number (ht)); | |
2107 | if (point > opoint || XFASTINT (tem) < ht) | |
2108 | SET_PT (opoint); | |
2109 | else | |
2110 | Fvertical_motion (make_number (-1)); | |
2111 | } | |
2112 | } | |
2113 | else | |
f8026fd8 JB |
2114 | { |
2115 | if (noerror) | |
2116 | return; | |
2117 | else | |
2118 | Fsignal (Qend_of_buffer, Qnil); | |
2119 | } | |
7ab12479 JB |
2120 | } |
2121 | \f | |
2122 | /* This is the guts of Fscroll_up and Fscroll_down. */ | |
2123 | ||
2124 | static void | |
2125 | scroll_command (n, direction) | |
2126 | register Lisp_Object n; | |
2127 | int direction; | |
2128 | { | |
2129 | register int defalt; | |
2130 | int count = specpdl_ptr - specpdl; | |
2131 | ||
95605e15 JB |
2132 | /* If selected window's buffer isn't current, make it current for the moment. |
2133 | But don't screw up if window_scroll gets an error. */ | |
7ab12479 | 2134 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
95605e15 JB |
2135 | { |
2136 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2137 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
2138 | } | |
7ab12479 JB |
2139 | |
2140 | defalt = (window_internal_height (XWINDOW (selected_window)) | |
2141 | - next_screen_context_lines); | |
2142 | defalt = direction * (defalt < 1 ? 1 : defalt); | |
2143 | ||
265a9e55 | 2144 | if (NILP (n)) |
f8026fd8 | 2145 | window_scroll (selected_window, defalt, 0); |
7ab12479 | 2146 | else if (EQ (n, Qminus)) |
f8026fd8 | 2147 | window_scroll (selected_window, - defalt, 0); |
7ab12479 JB |
2148 | else |
2149 | { | |
2150 | n = Fprefix_numeric_value (n); | |
f8026fd8 | 2151 | window_scroll (selected_window, XINT (n) * direction, 0); |
7ab12479 | 2152 | } |
95605e15 JB |
2153 | |
2154 | unbind_to (count, Qnil); | |
7ab12479 JB |
2155 | } |
2156 | ||
2157 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "P", | |
2158 | "Scroll text of current window upward ARG lines; or near full screen if no ARG.\n\ | |
2159 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
2160 | When calling from a program, supply a number as argument or nil.") | |
2161 | (n) | |
2162 | Lisp_Object n; | |
2163 | { | |
2164 | scroll_command (n, 1); | |
2165 | return Qnil; | |
2166 | } | |
2167 | ||
2168 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "P", | |
2169 | "Scroll text of current window downward ARG lines; or near full screen if no ARG.\n\ | |
2170 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
2171 | When calling from a program, supply a number as argument or nil.") | |
2172 | (n) | |
2173 | Lisp_Object n; | |
2174 | { | |
2175 | scroll_command (n, -1); | |
2176 | return Qnil; | |
2177 | } | |
2178 | ||
2179 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
99e5add3 | 2180 | "Scroll next window upward ARG lines; or near full screen if no ARG.\n\ |
7ab12479 JB |
2181 | The next window is the one below the current one; or the one at the top\n\ |
2182 | if the current one is at the bottom.\n\ | |
2183 | When calling from a program, supply a number as argument or nil.\n\ | |
2184 | \n\ | |
2185 | If in the minibuffer, `minibuf-scroll-window' if non-nil\n\ | |
2186 | specifies the window to scroll.\n\ | |
2187 | If `other-window-scroll-buffer' is non-nil, scroll the window\n\ | |
2188 | showing that buffer, popping the buffer up if necessary.") | |
2189 | (n) | |
2190 | register Lisp_Object n; | |
2191 | { | |
2192 | register Lisp_Object window; | |
2193 | register int ht; | |
2194 | register struct window *w; | |
2195 | register int count = specpdl_ptr - specpdl; | |
2196 | ||
2197 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 2198 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
2199 | window = Vminibuf_scroll_window; |
2200 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 2201 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
2202 | { |
2203 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 2204 | if (NILP (window)) |
7ab12479 JB |
2205 | window = Fdisplay_buffer (Vother_window_scroll_buffer, Qt); |
2206 | } | |
2207 | else | |
2208 | /* Nothing specified; pick a neighboring window. */ | |
2209 | window = Fnext_window (selected_window, Qnil, Qt); | |
605be8af | 2210 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2211 | |
2212 | if (EQ (window, selected_window)) | |
2213 | error ("There is no other window"); | |
2214 | ||
2215 | w = XWINDOW (window); | |
2216 | ht = window_internal_height (w); | |
2217 | ||
2218 | /* Don't screw up if window_scroll gets an error. */ | |
2219 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2220 | ||
2221 | Fset_buffer (w->buffer); | |
2222 | SET_PT (marker_position (w->pointm)); | |
2223 | ||
265a9e55 | 2224 | if (NILP (n)) |
f8026fd8 | 2225 | window_scroll (window, ht - next_screen_context_lines, 1); |
7ab12479 | 2226 | else if (EQ (n, Qminus)) |
f8026fd8 | 2227 | window_scroll (window, next_screen_context_lines - ht, 1); |
7ab12479 JB |
2228 | else |
2229 | { | |
2230 | if (XTYPE (n) == Lisp_Cons) | |
2231 | n = Fcar (n); | |
2232 | CHECK_NUMBER (n, 0); | |
f8026fd8 | 2233 | window_scroll (window, XINT (n), 1); |
7ab12479 JB |
2234 | } |
2235 | ||
2236 | Fset_marker (w->pointm, make_number (point), Qnil); | |
2237 | unbind_to (count); | |
2238 | ||
2239 | return Qnil; | |
2240 | } | |
2241 | \f | |
2242 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 1, 1, "P", | |
2243 | "Scroll selected window display ARG columns left.\n\ | |
2244 | Default for ARG is window width minus 2.") | |
2245 | (arg) | |
2246 | register Lisp_Object arg; | |
2247 | { | |
2248 | ||
265a9e55 | 2249 | if (NILP (arg)) |
535e0b8e | 2250 | XFASTINT (arg) = window_internal_width (selected_window) - 2; |
7ab12479 JB |
2251 | else |
2252 | arg = Fprefix_numeric_value (arg); | |
2253 | ||
2254 | return | |
2255 | Fset_window_hscroll (selected_window, | |
2256 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2257 | + XINT (arg))); | |
2258 | } | |
2259 | ||
2260 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 1, 1, "P", | |
2261 | "Scroll selected window display ARG columns right.\n\ | |
2262 | Default for ARG is window width minus 2.") | |
2263 | (arg) | |
2264 | register Lisp_Object arg; | |
2265 | { | |
265a9e55 | 2266 | if (NILP (arg)) |
535e0b8e | 2267 | XFASTINT (arg) = window_internal_width (selected_window) - 2; |
7ab12479 JB |
2268 | else |
2269 | arg = Fprefix_numeric_value (arg); | |
2270 | ||
2271 | return | |
2272 | Fset_window_hscroll (selected_window, | |
2273 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2274 | - XINT (arg))); | |
2275 | } | |
2276 | ||
2277 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", | |
44fa5b1e | 2278 | "Center point in window and redisplay frame. With ARG, put point on line ARG.\n\ |
7ab12479 | 2279 | The desired position of point is always relative to the current window.\n\ |
44fa5b1e JB |
2280 | Just C-u as prefix means put point in the center of the window.\n\ |
2281 | No arg (i.e., it is nil) erases the entire frame and then\n\ | |
2282 | redraws with point in the center of the current window.") | |
7ab12479 JB |
2283 | (n) |
2284 | register Lisp_Object n; | |
2285 | { | |
2286 | register struct window *w = XWINDOW (selected_window); | |
2287 | register int ht = window_internal_height (w); | |
2288 | register int opoint = point; | |
2289 | ||
265a9e55 | 2290 | if (NILP (n)) |
7ab12479 | 2291 | { |
44fa5b1e | 2292 | extern int frame_garbaged; |
7ab12479 | 2293 | |
44fa5b1e | 2294 | SET_FRAME_GARBAGED (XFRAME (WINDOW_FRAME (w))); |
7ab12479 JB |
2295 | XFASTINT (n) = ht / 2; |
2296 | } | |
2297 | else if (XTYPE (n) == Lisp_Cons) /* Just C-u. */ | |
2298 | { | |
2299 | XFASTINT (n) = ht / 2; | |
2300 | } | |
2301 | else | |
2302 | { | |
2303 | n = Fprefix_numeric_value (n); | |
2304 | CHECK_NUMBER (n, 0); | |
2305 | } | |
2306 | ||
2307 | if (XINT (n) < 0) | |
2308 | XSETINT (n, XINT (n) + ht); | |
2309 | ||
2310 | XSETINT (n, - XINT (n)); | |
2311 | ||
2312 | Fvertical_motion (n); | |
2313 | Fset_marker (w->start, make_number (point), w->buffer); | |
2314 | w->start_at_line_beg = Fbolp (); | |
2315 | ||
2316 | SET_PT (opoint); | |
2317 | w->force_start = Qt; | |
2318 | ||
2319 | return Qnil; | |
2320 | } | |
2321 | \f | |
2322 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
2323 | 1, 1, "P", | |
2324 | "Position point relative to window.\n\ | |
2325 | With no argument, position text at center of window.\n\ | |
44fa5b1e | 2326 | An argument specifies frame line; zero means top of window,\n\ |
7ab12479 JB |
2327 | negative means relative to bottom of window.") |
2328 | (arg) | |
2329 | register Lisp_Object arg; | |
2330 | { | |
2331 | register struct window *w = XWINDOW (selected_window); | |
2332 | register int height = window_internal_height (w); | |
2333 | register int start; | |
2334 | ||
265a9e55 | 2335 | if (NILP (arg)) |
7ab12479 JB |
2336 | XFASTINT (arg) = height / 2; |
2337 | else | |
2338 | { | |
2339 | arg = Fprefix_numeric_value (arg); | |
2340 | if (XINT (arg) < 0) | |
2341 | XSETINT (arg, XINT (arg) + height); | |
2342 | } | |
2343 | ||
2344 | start = marker_position (w->start); | |
2345 | if (start < BEGV || start > ZV) | |
2346 | { | |
2347 | Fvertical_motion (make_number (- height / 2)); | |
2348 | Fset_marker (w->start, make_number (point), w->buffer); | |
2349 | w->start_at_line_beg = Fbolp (); | |
2350 | w->force_start = Qt; | |
2351 | } | |
2352 | else | |
2353 | SET_PT (start); | |
2354 | ||
2355 | return Fvertical_motion (arg); | |
2356 | } | |
2357 | \f | |
2358 | struct save_window_data | |
2359 | { | |
2360 | int size_from_Lisp_Vector_struct; | |
2361 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
44fa5b1e | 2362 | Lisp_Object frame_width, frame_height; |
bdc727bf | 2363 | Lisp_Object selected_frame; |
7ab12479 JB |
2364 | Lisp_Object current_window; |
2365 | Lisp_Object current_buffer; | |
2366 | Lisp_Object minibuf_scroll_window; | |
2367 | Lisp_Object root_window; | |
bdc727bf | 2368 | Lisp_Object focus_frame; |
7ab12479 JB |
2369 | /* A vector, interpreted as a struct saved_window */ |
2370 | Lisp_Object saved_windows; | |
2371 | }; | |
ff06df24 JB |
2372 | |
2373 | /* Arg to Fmake_vector */ | |
2374 | #define SAVE_WINDOW_DATA_SIZE \ | |
2375 | ((sizeof (struct save_window_data) \ | |
2376 | - (sizeof (struct Lisp_Vector) \ | |
2377 | /* Don't count the contents member of the struct Lisp_Vector */ \ | |
2378 | - sizeof (Lisp_Object))) \ | |
2379 | / sizeof (Lisp_Object)) | |
7ab12479 JB |
2380 | |
2381 | /* This is saved as a Lisp_Vector */ | |
2382 | struct saved_window | |
2383 | { | |
2384 | /* these first two must agree with struct Lisp_Vector in lisp.h */ | |
2385 | int size_from_Lisp_Vector_struct; | |
2386 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
2387 | ||
2388 | Lisp_Object window; | |
2389 | Lisp_Object buffer, start, pointm, mark; | |
2390 | Lisp_Object left, top, width, height, hscroll; | |
2391 | Lisp_Object parent, prev; | |
2392 | Lisp_Object start_at_line_beg; | |
2393 | Lisp_Object display_table; | |
2394 | }; | |
2395 | #define SAVED_WINDOW_VECTOR_SIZE 14 /* Arg to Fmake_vector */ | |
2396 | ||
2397 | #define SAVED_WINDOW_N(swv,n) \ | |
2398 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) | |
2399 | ||
2400 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
2401 | "T if OBJECT is a window-configration object.") | |
2402 | (obj) | |
2403 | Lisp_Object obj; | |
2404 | { | |
2405 | if (XTYPE (obj) == Lisp_Window_Configuration) | |
2406 | return Qt; | |
2407 | return Qnil; | |
2408 | } | |
2409 | ||
2410 | ||
2411 | DEFUN ("set-window-configuration", | |
2412 | Fset_window_configuration, Sset_window_configuration, | |
2413 | 1, 1, 0, | |
2414 | "Set the configuration of windows and buffers as specified by CONFIGURATION.\n\ | |
2415 | CONFIGURATION must be a value previously returned\n\ | |
2416 | by `current-window-configuration' (which see).") | |
2f83aebe JB |
2417 | (configuration) |
2418 | Lisp_Object configuration; | |
7ab12479 | 2419 | { |
7ab12479 JB |
2420 | register struct save_window_data *data; |
2421 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 2422 | Lisp_Object new_current_buffer; |
fd482be5 | 2423 | Lisp_Object frame; |
44fa5b1e | 2424 | FRAME_PTR f; |
7ab12479 | 2425 | |
2f83aebe | 2426 | while (XTYPE (configuration) != Lisp_Window_Configuration) |
7ab12479 | 2427 | { |
2f83aebe JB |
2428 | configuration = wrong_type_argument (intern ("window-configuration-p"), |
2429 | configuration); | |
7ab12479 JB |
2430 | } |
2431 | ||
2f83aebe | 2432 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
2433 | saved_windows = XVECTOR (data->saved_windows); |
2434 | ||
7ab12479 | 2435 | new_current_buffer = data->current_buffer; |
265a9e55 | 2436 | if (NILP (XBUFFER (new_current_buffer)->name)) |
7ab12479 JB |
2437 | new_current_buffer = Qnil; |
2438 | ||
fd482be5 JB |
2439 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
2440 | f = XFRAME (frame); | |
9ace597f | 2441 | |
fd482be5 JB |
2442 | /* If f is a dead frame, don't bother rebuilding its window tree. |
2443 | However, there is other stuff we should still try to do below. */ | |
2444 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 2445 | { |
fd482be5 JB |
2446 | register struct window *w; |
2447 | register struct saved_window *p; | |
2448 | int k; | |
2449 | ||
2450 | /* If the frame has been resized since this window configuration was | |
2451 | made, we change the frame to the size specified in the | |
2452 | configuration, restore the configuration, and then resize it | |
2453 | back. We keep track of the prevailing height in these variables. */ | |
2454 | int previous_frame_height = FRAME_HEIGHT (f); | |
2455 | int previous_frame_width = FRAME_WIDTH (f); | |
2456 | ||
2457 | if (XFASTINT (data->frame_height) != previous_frame_height | |
2458 | || XFASTINT (data->frame_width) != previous_frame_width) | |
2459 | change_frame_size (f, data->frame_height, data->frame_width, 0, 0); | |
2460 | ||
2461 | windows_or_buffers_changed++; | |
2462 | ||
2463 | /* Kludge Alert! | |
2464 | Mark all windows now on frame as "deleted". | |
2465 | Restoring the new configuration "undeletes" any that are in it. | |
2466 | ||
2467 | Save their current buffers in their height fields, since we may | |
2468 | need it later, if a buffer saved in the configuration is now | |
2469 | dead. */ | |
2470 | delete_all_subwindows (XWINDOW (FRAME_ROOT_WINDOW (f))); | |
2471 | ||
2472 | for (k = 0; k < saved_windows->size; k++) | |
2473 | { | |
2474 | p = SAVED_WINDOW_N (saved_windows, k); | |
2475 | w = XWINDOW (p->window); | |
2476 | w->next = Qnil; | |
7ab12479 | 2477 | |
fd482be5 JB |
2478 | if (!NILP (p->parent)) |
2479 | w->parent = SAVED_WINDOW_N (saved_windows, | |
2480 | XFASTINT (p->parent))->window; | |
2481 | else | |
2482 | w->parent = Qnil; | |
7ab12479 | 2483 | |
fd482be5 | 2484 | if (!NILP (p->prev)) |
7ab12479 | 2485 | { |
fd482be5 JB |
2486 | w->prev = SAVED_WINDOW_N (saved_windows, |
2487 | XFASTINT (p->prev))->window; | |
2488 | XWINDOW (w->prev)->next = p->window; | |
2489 | } | |
2490 | else | |
2491 | { | |
2492 | w->prev = Qnil; | |
2493 | if (!NILP (w->parent)) | |
2494 | { | |
2495 | if (EQ (p->width, XWINDOW (w->parent)->width)) | |
2496 | { | |
2497 | XWINDOW (w->parent)->vchild = p->window; | |
2498 | XWINDOW (w->parent)->hchild = Qnil; | |
2499 | } | |
2500 | else | |
2501 | { | |
2502 | XWINDOW (w->parent)->hchild = p->window; | |
2503 | XWINDOW (w->parent)->vchild = Qnil; | |
2504 | } | |
2505 | } | |
2506 | } | |
2507 | ||
2508 | /* If we squirreled away the buffer in the window's height, | |
2509 | restore it now. */ | |
2510 | if (XTYPE (w->height) == Lisp_Buffer) | |
2511 | w->buffer = w->height; | |
2512 | w->left = p->left; | |
2513 | w->top = p->top; | |
2514 | w->width = p->width; | |
2515 | w->height = p->height; | |
2516 | w->hscroll = p->hscroll; | |
2517 | w->display_table = p->display_table; | |
2518 | XFASTINT (w->last_modified) = 0; | |
2519 | ||
2520 | /* Reinstall the saved buffer and pointers into it. */ | |
2521 | if (NILP (p->buffer)) | |
2522 | w->buffer = p->buffer; | |
2523 | else | |
2524 | { | |
2525 | if (!NILP (XBUFFER (p->buffer)->name)) | |
2526 | /* If saved buffer is alive, install it. */ | |
2527 | { | |
2528 | w->buffer = p->buffer; | |
2529 | w->start_at_line_beg = p->start_at_line_beg; | |
2530 | set_marker_restricted (w->start, | |
2531 | Fmarker_position (p->start), | |
2532 | w->buffer); | |
2533 | set_marker_restricted (w->pointm, | |
2534 | Fmarker_position (p->pointm), | |
2535 | w->buffer); | |
2536 | Fset_marker (XBUFFER (w->buffer)->mark, | |
2537 | Fmarker_position (p->mark), w->buffer); | |
2538 | ||
2539 | /* As documented in Fcurrent_window_configuration, don't | |
2540 | save the location of point in the buffer which was current | |
2541 | when the window configuration was recorded. */ | |
2542 | if (!EQ (p->buffer, new_current_buffer) && | |
2543 | XBUFFER (p->buffer) == current_buffer) | |
2544 | Fgoto_char (w->pointm); | |
2545 | } | |
2546 | else if (NILP (XBUFFER (w->buffer)->name)) | |
2547 | /* Else if window's old buffer is dead too, get a live one. */ | |
7ab12479 | 2548 | { |
fd482be5 JB |
2549 | w->buffer = Fcdr (Fcar (Vbuffer_alist)); |
2550 | /* This will set the markers to beginning of visible | |
2551 | range. */ | |
2552 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
2553 | set_marker_restricted (w->pointm, make_number (0),w->buffer); | |
2554 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
2555 | } |
2556 | else | |
fd482be5 JB |
2557 | /* Keeping window's old buffer; make sure the markers |
2558 | are real. Else if window's old buffer is dead too, | |
2559 | get a live one. */ | |
7ab12479 | 2560 | { |
fd482be5 JB |
2561 | /* Set window markers at start of visible range. */ |
2562 | if (XMARKER (w->start)->buffer == 0) | |
2563 | set_marker_restricted (w->start, make_number (0), | |
2564 | w->buffer); | |
2565 | if (XMARKER (w->pointm)->buffer == 0) | |
2566 | set_marker_restricted (w->pointm, | |
2567 | (make_number | |
2568 | (BUF_PT (XBUFFER (w->buffer)))), | |
2569 | w->buffer); | |
2570 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
2571 | } |
2572 | } | |
2573 | } | |
9ace597f | 2574 | |
fd482be5 JB |
2575 | FRAME_ROOT_WINDOW (f) = data->root_window; |
2576 | Fselect_window (data->current_window); | |
7ab12479 | 2577 | |
fd482be5 | 2578 | #ifdef MULTI_FRAME |
db269683 JB |
2579 | if (NILP (data->focus_frame) |
2580 | || (XTYPE (data->focus_frame) == Lisp_Frame | |
2581 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) | |
2582 | Fredirect_frame_focus (frame, data->focus_frame); | |
fd482be5 | 2583 | #endif |
7ab12479 | 2584 | |
fd482be5 JB |
2585 | #if 0 /* I don't understand why this is needed, and it causes problems |
2586 | when the frame's old selected window has been deleted. */ | |
2587 | #ifdef MULTI_FRAME | |
2588 | if (f != selected_frame && ! FRAME_TERMCAP_P (f)) | |
2589 | Fselect_frame (WINDOW_FRAME (XWINDOW (data->root_window)), Qnil); | |
2590 | #endif | |
2591 | #endif | |
2592 | ||
2593 | /* Set the screen height to the value it had before this function. */ | |
2594 | if (previous_frame_height != FRAME_HEIGHT (f) | |
2595 | || previous_frame_width != FRAME_WIDTH (f)) | |
2596 | change_frame_size (f, previous_frame_height, previous_frame_width, | |
2597 | 0, 0); | |
2598 | } | |
bdc727bf | 2599 | |
ad854249 | 2600 | #ifdef MULTI_FRAME |
bdc727bf JB |
2601 | /* Fselect_window will have made f the selected frame, so we |
2602 | reselect the proper frame here. Fselect_frame will change the | |
2603 | selected window too, but that doesn't make the call to | |
2604 | Fselect_window above totally superfluous; it still sets f's | |
2605 | selected window. */ | |
fd482be5 JB |
2606 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) |
2607 | Fselect_frame (data->selected_frame); | |
ad854249 | 2608 | #endif |
bdc727bf JB |
2609 | |
2610 | if (!NILP (new_current_buffer)) | |
2611 | Fset_buffer (new_current_buffer); | |
2612 | ||
7ab12479 JB |
2613 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
2614 | return (Qnil); | |
2615 | } | |
2616 | ||
44fa5b1e | 2617 | /* Mark all windows now on frame as deleted |
7ab12479 JB |
2618 | by setting their buffers to nil. */ |
2619 | ||
fd482be5 | 2620 | void |
7ab12479 JB |
2621 | delete_all_subwindows (w) |
2622 | register struct window *w; | |
2623 | { | |
265a9e55 | 2624 | if (!NILP (w->next)) |
7ab12479 | 2625 | delete_all_subwindows (XWINDOW (w->next)); |
265a9e55 | 2626 | if (!NILP (w->vchild)) |
7ab12479 | 2627 | delete_all_subwindows (XWINDOW (w->vchild)); |
265a9e55 | 2628 | if (!NILP (w->hchild)) |
7ab12479 | 2629 | delete_all_subwindows (XWINDOW (w->hchild)); |
605be8af JB |
2630 | |
2631 | w->height = w->buffer; /* See Fset_window_configuration for excuse. */ | |
2632 | ||
2633 | /* We set all three of these fields to nil, to make sure that we can | |
2634 | distinguish this dead window from any live window. Live leaf | |
2635 | windows will have buffer set, and combination windows will have | |
2636 | vchild or hchild set. */ | |
2637 | w->buffer = Qnil; | |
2638 | w->vchild = Qnil; | |
2639 | w->hchild = Qnil; | |
7ab12479 JB |
2640 | } |
2641 | \f | |
2642 | static int | |
2643 | count_windows (window) | |
2644 | register struct window *window; | |
2645 | { | |
2646 | register int count = 1; | |
265a9e55 | 2647 | if (!NILP (window->next)) |
7ab12479 | 2648 | count += count_windows (XWINDOW (window->next)); |
265a9e55 | 2649 | if (!NILP (window->vchild)) |
7ab12479 | 2650 | count += count_windows (XWINDOW (window->vchild)); |
265a9e55 | 2651 | if (!NILP (window->hchild)) |
7ab12479 JB |
2652 | count += count_windows (XWINDOW (window->hchild)); |
2653 | return count; | |
2654 | } | |
2655 | ||
2656 | static int | |
2657 | save_window_save (window, vector, i) | |
2658 | Lisp_Object window; | |
2659 | struct Lisp_Vector *vector; | |
2660 | int i; | |
2661 | { | |
2662 | register struct saved_window *p; | |
2663 | register struct window *w; | |
2664 | register Lisp_Object tem; | |
2665 | ||
265a9e55 | 2666 | for (;!NILP (window); window = w->next) |
7ab12479 JB |
2667 | { |
2668 | p = SAVED_WINDOW_N (vector, i); | |
2669 | w = XWINDOW (window); | |
2670 | ||
2671 | XFASTINT (w->temslot) = i++; | |
2672 | p->window = window; | |
2673 | p->buffer = w->buffer; | |
2674 | p->left = w->left; | |
2675 | p->top = w->top; | |
2676 | p->width = w->width; | |
2677 | p->height = w->height; | |
2678 | p->hscroll = w->hscroll; | |
2679 | p->display_table = w->display_table; | |
265a9e55 | 2680 | if (!NILP (w->buffer)) |
7ab12479 JB |
2681 | { |
2682 | /* Save w's value of point in the window configuration. | |
2683 | If w is the selected window, then get the value of point | |
2684 | from the buffer; pointm is garbage in the selected window. */ | |
2685 | if (EQ (window, selected_window)) | |
2686 | { | |
2687 | p->pointm = Fmake_marker (); | |
2688 | Fset_marker (p->pointm, BUF_PT (XBUFFER (w->buffer)), | |
2689 | w->buffer); | |
2690 | } | |
2691 | else | |
2692 | p->pointm = Fcopy_marker (w->pointm); | |
2693 | ||
2694 | p->start = Fcopy_marker (w->start); | |
2695 | p->start_at_line_beg = w->start_at_line_beg; | |
2696 | ||
2697 | tem = XBUFFER (w->buffer)->mark; | |
2698 | p->mark = Fcopy_marker (tem); | |
2699 | } | |
2700 | else | |
2701 | { | |
2702 | p->pointm = Qnil; | |
2703 | p->start = Qnil; | |
2704 | p->mark = Qnil; | |
2705 | p->start_at_line_beg = Qnil; | |
2706 | } | |
2707 | ||
265a9e55 | 2708 | if (NILP (w->parent)) |
7ab12479 JB |
2709 | p->parent = Qnil; |
2710 | else | |
2711 | p->parent = XWINDOW (w->parent)->temslot; | |
2712 | ||
265a9e55 | 2713 | if (NILP (w->prev)) |
7ab12479 JB |
2714 | p->prev = Qnil; |
2715 | else | |
2716 | p->prev = XWINDOW (w->prev)->temslot; | |
2717 | ||
265a9e55 | 2718 | if (!NILP (w->vchild)) |
7ab12479 | 2719 | i = save_window_save (w->vchild, vector, i); |
265a9e55 | 2720 | if (!NILP (w->hchild)) |
7ab12479 JB |
2721 | i = save_window_save (w->hchild, vector, i); |
2722 | } | |
2723 | ||
2724 | return i; | |
2725 | } | |
2726 | ||
2727 | DEFUN ("current-window-configuration", | |
43bad991 | 2728 | Fcurrent_window_configuration, Scurrent_window_configuration, 0, 1, 0, |
44fa5b1e JB |
2729 | "Return an object representing the current window configuration of FRAME.\n\ |
2730 | If FRAME is nil or omitted, use the selected frame.\n\ | |
7ab12479 JB |
2731 | This describes the number of windows, their sizes and current buffers,\n\ |
2732 | and for each displayed buffer, where display starts, and the positions of\n\ | |
2733 | point and mark. An exception is made for point in the current buffer:\n\ | |
bdc727bf JB |
2734 | its value is -not- saved.\n\ |
2735 | This also records the currently selected frame, and FRAME's focus\n\ | |
2736 | redirection (see `redirect-frame-focus').") | |
44fa5b1e JB |
2737 | (frame) |
2738 | Lisp_Object frame; | |
7ab12479 JB |
2739 | { |
2740 | register Lisp_Object tem; | |
2741 | register int n_windows; | |
2742 | register struct save_window_data *data; | |
2743 | register int i; | |
44fa5b1e | 2744 | FRAME_PTR f; |
43bad991 | 2745 | |
44fa5b1e JB |
2746 | if (NILP (frame)) |
2747 | f = selected_frame; | |
43bad991 JB |
2748 | else |
2749 | { | |
44fa5b1e JB |
2750 | CHECK_LIVE_FRAME (frame, 0); |
2751 | f = XFRAME (frame); | |
43bad991 | 2752 | } |
7ab12479 | 2753 | |
44fa5b1e | 2754 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
7ab12479 JB |
2755 | data = (struct save_window_data *) |
2756 | XVECTOR (Fmake_vector (make_number (SAVE_WINDOW_DATA_SIZE), | |
2757 | Qnil)); | |
44fa5b1e JB |
2758 | XFASTINT (data->frame_width) = FRAME_WIDTH (f); |
2759 | XFASTINT (data->frame_height) = FRAME_HEIGHT (f); | |
ad854249 | 2760 | #ifdef MULTI_FRAME |
bdc727bf | 2761 | XSET (data->selected_frame, Lisp_Frame, selected_frame); |
ad854249 | 2762 | #endif |
44fa5b1e | 2763 | data->current_window = FRAME_SELECTED_WINDOW (f); |
7ab12479 JB |
2764 | XSET (data->current_buffer, Lisp_Buffer, current_buffer); |
2765 | data->minibuf_scroll_window = Vminibuf_scroll_window; | |
44fa5b1e | 2766 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 2767 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
7ab12479 JB |
2768 | tem = Fmake_vector (make_number (n_windows), Qnil); |
2769 | data->saved_windows = tem; | |
2770 | for (i = 0; i < n_windows; i++) | |
2771 | XVECTOR (tem)->contents[i] | |
2772 | = Fmake_vector (make_number (SAVED_WINDOW_VECTOR_SIZE), Qnil); | |
44fa5b1e | 2773 | save_window_save (FRAME_ROOT_WINDOW (f), |
7ab12479 JB |
2774 | XVECTOR (tem), 0); |
2775 | XSET (tem, Lisp_Window_Configuration, data); | |
2776 | return (tem); | |
2777 | } | |
2778 | ||
2779 | DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion, | |
2780 | 0, UNEVALLED, 0, | |
2781 | "Execute body, preserving window sizes and contents.\n\ | |
2782 | Restores which buffer appears in which window, where display starts,\n\ | |
2783 | as well as the current buffer.\n\ | |
2784 | Does not restore the value of point in current buffer.") | |
2785 | (args) | |
2786 | Lisp_Object args; | |
2787 | { | |
2788 | register Lisp_Object val; | |
2789 | register int count = specpdl_ptr - specpdl; | |
2790 | ||
2791 | record_unwind_protect (Fset_window_configuration, | |
43bad991 | 2792 | Fcurrent_window_configuration (Qnil)); |
7ab12479 JB |
2793 | val = Fprogn (args); |
2794 | return unbind_to (count, val); | |
2795 | } | |
2796 | \f | |
2797 | init_window_once () | |
2798 | { | |
44fa5b1e JB |
2799 | #ifdef MULTI_FRAME |
2800 | selected_frame = make_terminal_frame (); | |
2801 | minibuf_window = selected_frame->minibuffer_window; | |
2802 | selected_window = selected_frame->selected_window; | |
2803 | last_nonminibuf_frame = selected_frame; | |
2804 | #else /* not MULTI_FRAME */ | |
7ab12479 JB |
2805 | extern Lisp_Object get_minibuffer (); |
2806 | ||
95605e15 | 2807 | minibuf_window = make_window (); |
4b206065 | 2808 | FRAME_ROOT_WINDOW (selected_frame) = make_window (); |
7ab12479 | 2809 | |
44fa5b1e JB |
2810 | XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->next = minibuf_window; |
2811 | XWINDOW (minibuf_window)->prev = FRAME_ROOT_WINDOW (selected_frame); | |
4b206065 | 2812 | XWINDOW (minibuf_window)->mini_p = Qt; |
7ab12479 JB |
2813 | |
2814 | /* These values 9 and 10 are arbitrary, | |
2815 | just so that there is "something there." | |
2816 | Correct values are put in in init_xdisp */ | |
2817 | ||
44fa5b1e | 2818 | XFASTINT (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->width) = 10; |
7ab12479 JB |
2819 | XFASTINT (XWINDOW (minibuf_window)->width) = 10; |
2820 | ||
44fa5b1e | 2821 | XFASTINT (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->height) = 9; |
7ab12479 JB |
2822 | XFASTINT (XWINDOW (minibuf_window)->top) = 9; |
2823 | XFASTINT (XWINDOW (minibuf_window)->height) = 1; | |
2824 | ||
2825 | /* Prevent error in Fset_window_buffer. */ | |
44fa5b1e | 2826 | XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->buffer = Qt; |
7ab12479 JB |
2827 | XWINDOW (minibuf_window)->buffer = Qt; |
2828 | ||
2829 | /* Now set them up for real. */ | |
44fa5b1e | 2830 | Fset_window_buffer (FRAME_ROOT_WINDOW (selected_frame), |
e5d77022 | 2831 | Fcurrent_buffer ()); |
7ab12479 JB |
2832 | Fset_window_buffer (minibuf_window, get_minibuffer (0)); |
2833 | ||
44fa5b1e | 2834 | selected_window = FRAME_ROOT_WINDOW (selected_frame); |
1d8d96fa JB |
2835 | /* Make sure this window seems more recently used than |
2836 | a newly-created, never-selected window. Increment | |
2837 | window_select_count so the first selection ever will get | |
2838 | something newer than this. */ | |
2839 | XFASTINT (XWINDOW (selected_window)->use_time) = ++window_select_count; | |
44fa5b1e | 2840 | #endif /* not MULTI_FRAME */ |
7ab12479 JB |
2841 | } |
2842 | ||
2843 | syms_of_window () | |
2844 | { | |
2845 | Qwindowp = intern ("windowp"); | |
2846 | staticpro (&Qwindowp); | |
2847 | ||
605be8af JB |
2848 | Qlive_window_p = intern ("live-window-p"); |
2849 | staticpro (&Qlive_window_p); | |
2850 | ||
2f83aebe | 2851 | #ifndef MULTI_FRAME |
7ab12479 JB |
2852 | /* Make sure all windows get marked */ |
2853 | staticpro (&minibuf_window); | |
2f83aebe | 2854 | #endif |
7ab12479 JB |
2855 | |
2856 | DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function, | |
2857 | "Non-nil means call as function to display a help buffer.\n\ | |
2858 | Used by `with-output-to-temp-buffer'."); | |
2859 | Vtemp_buffer_show_function = Qnil; | |
2860 | ||
2861 | DEFVAR_LISP ("display-buffer-function", &Vdisplay_buffer_function, | |
2862 | "If non-nil, function to call to handle `display-buffer'.\n\ | |
2863 | It will receive two args, the buffer and a flag which if non-nil means\n\ | |
2864 | that the currently selected window is not acceptable.\n\ | |
2865 | Commands such as `switch-to-buffer-other-window' and `find-file-other-window'\n\ | |
2866 | work using this function."); | |
2867 | Vdisplay_buffer_function = Qnil; | |
2868 | ||
2869 | DEFVAR_LISP ("mouse-window", &Vmouse_window, | |
2870 | "Window that the last mouse click occurred on."); | |
2871 | Vmouse_window = Qnil; | |
2872 | ||
2873 | DEFVAR_LISP ("mouse-event", &Vmouse_event, | |
2874 | "The last mouse-event object. A list of four elements:\n\ | |
44fa5b1e | 2875 | ((X-POS Y-POS) WINDOW FRAME-PART KEYSEQ).\n\ |
7ab12479 JB |
2876 | KEYSEQ is a string, the key sequence to be looked up in the mouse maps.\n\ |
2877 | WINDOW is the window that the click applies do.\n\ | |
44fa5b1e | 2878 | If FRAME-PART is non-nil, the event was on a scrollbar;\n\ |
7ab12479 JB |
2879 | then Y-POS is really the total length of the scrollbar, while X-POS is\n\ |
2880 | the relative position of the scrollbar's value within that total length.\n\ | |
44fa5b1e | 2881 | FRAME-PART is one of the following symbols:\n\ |
7ab12479 JB |
2882 | `vertical-scrollbar', `vertical-slider',\n\ |
2883 | `vertical-thumbup', `vertical-thumbdown',\n\ | |
2884 | `horizontal-scrollbar', `horizontal-slider',\n\ | |
2885 | `horizontal-thumbleft', `horizontal-thumbright'"); | |
2886 | Vmouse_event = Qnil; | |
2887 | ||
2888 | DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window, | |
2889 | "Non-nil means it is the window that C-M-v in minibuffer should scroll."); | |
2890 | Vminibuf_scroll_window = Qnil; | |
2891 | ||
2892 | DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer, | |
2893 | "If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window."); | |
2894 | Vother_window_scroll_buffer = Qnil; | |
2895 | ||
44fa5b1e JB |
2896 | #ifdef MULTI_FRAME |
2897 | DEFVAR_BOOL ("pop-up-frames", &pop_up_frames, | |
700f75a4 | 2898 | "*Non-nil means `display-buffer' should make a separate frame."); |
44fa5b1e | 2899 | pop_up_frames = 0; |
7ab12479 | 2900 | |
44fa5b1e JB |
2901 | DEFVAR_LISP ("pop-up-frame-function", &Vpop_up_frame_function, |
2902 | "*If non-nil, function to call to handle automatic new frame creation.\n\ | |
2903 | It is called with no arguments and should return a newly created frame.\n\ | |
7ab12479 | 2904 | \n\ |
44fa5b1e JB |
2905 | A typical value might be `(lambda () (new-frame pop-up-frame-alist))'\n\ |
2906 | where `pop-up-frame-alist' would hold the default frame parameters."); | |
2907 | Vpop_up_frame_function = Qnil; | |
7ab12479 JB |
2908 | #endif |
2909 | ||
2910 | DEFVAR_BOOL ("pop-up-windows", &pop_up_windows, | |
2911 | "*Non-nil means display-buffer should make new windows."); | |
2912 | pop_up_windows = 1; | |
2913 | ||
2914 | DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines, | |
2915 | "*Number of lines of continuity when scrolling by screenfuls."); | |
2916 | next_screen_context_lines = 2; | |
2917 | ||
2918 | DEFVAR_INT ("split-height-threshold", &split_height_threshold, | |
2919 | "*display-buffer would prefer to split the largest window if this large.\n\ | |
2920 | If there is only one window, it is split regardless of this value."); | |
2921 | split_height_threshold = 500; | |
2922 | ||
2923 | DEFVAR_INT ("window-min-height", &window_min_height, | |
2924 | "*Delete any window less than this tall (including its mode line)."); | |
2925 | window_min_height = 4; | |
2926 | ||
2927 | DEFVAR_INT ("window-min-width", &window_min_width, | |
2928 | "*Delete any window less than this wide."); | |
2929 | window_min_width = 10; | |
2930 | ||
2931 | defsubr (&Sselected_window); | |
2932 | defsubr (&Sminibuffer_window); | |
2933 | defsubr (&Swindow_minibuffer_p); | |
2934 | defsubr (&Swindowp); | |
605be8af | 2935 | defsubr (&Slive_window_p); |
7ab12479 JB |
2936 | defsubr (&Spos_visible_in_window_p); |
2937 | defsubr (&Swindow_buffer); | |
2938 | defsubr (&Swindow_height); | |
2939 | defsubr (&Swindow_width); | |
2940 | defsubr (&Swindow_hscroll); | |
2941 | defsubr (&Sset_window_hscroll); | |
2942 | defsubr (&Swindow_edges); | |
d5783c40 JB |
2943 | defsubr (&Scoordinates_in_window_p); |
2944 | defsubr (&Swindow_at); | |
7ab12479 JB |
2945 | defsubr (&Swindow_point); |
2946 | defsubr (&Swindow_start); | |
2947 | defsubr (&Swindow_end); | |
2948 | defsubr (&Sset_window_point); | |
2949 | defsubr (&Sset_window_start); | |
2950 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 2951 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
2952 | defsubr (&Swindow_display_table); |
2953 | defsubr (&Sset_window_display_table); | |
2954 | defsubr (&Snext_window); | |
2955 | defsubr (&Sprevious_window); | |
2956 | defsubr (&Sother_window); | |
2957 | defsubr (&Sget_lru_window); | |
2958 | defsubr (&Sget_largest_window); | |
2959 | defsubr (&Sget_buffer_window); | |
2960 | defsubr (&Sdelete_other_windows); | |
2961 | defsubr (&Sdelete_windows_on); | |
2962 | defsubr (&Sreplace_buffer_in_windows); | |
2963 | defsubr (&Sdelete_window); | |
2964 | defsubr (&Sset_window_buffer); | |
2965 | defsubr (&Sselect_window); | |
2966 | defsubr (&Sdisplay_buffer); | |
2967 | defsubr (&Ssplit_window); | |
2968 | defsubr (&Senlarge_window); | |
2969 | defsubr (&Sshrink_window); | |
2970 | defsubr (&Sscroll_up); | |
2971 | defsubr (&Sscroll_down); | |
2972 | defsubr (&Sscroll_left); | |
2973 | defsubr (&Sscroll_right); | |
2974 | defsubr (&Sscroll_other_window); | |
2975 | defsubr (&Srecenter); | |
2976 | defsubr (&Smove_to_window_line); | |
2977 | defsubr (&Swindow_configuration_p); | |
2978 | defsubr (&Sset_window_configuration); | |
2979 | defsubr (&Scurrent_window_configuration); | |
2980 | defsubr (&Ssave_window_excursion); | |
2981 | } | |
2982 | ||
2983 | keys_of_window () | |
2984 | { | |
2985 | initial_define_key (control_x_map, '1', "delete-other-windows"); | |
2986 | initial_define_key (control_x_map, '2', "split-window"); | |
2987 | initial_define_key (control_x_map, '0', "delete-window"); | |
2988 | initial_define_key (control_x_map, 'o', "other-window"); | |
2989 | initial_define_key (control_x_map, '^', "enlarge-window"); | |
2990 | initial_define_key (control_x_map, '<', "scroll-left"); | |
2991 | initial_define_key (control_x_map, '>', "scroll-right"); | |
2992 | ||
2993 | initial_define_key (global_map, Ctl ('V'), "scroll-up"); | |
2994 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); | |
2995 | initial_define_key (meta_map, 'v', "scroll-down"); | |
2996 | ||
2997 | initial_define_key (global_map, Ctl('L'), "recenter"); | |
2998 | initial_define_key (meta_map, 'r', "move-to-window-line"); | |
2999 | } |