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7ab12479 JB |
1 | /* Window creation, deletion and examination for GNU Emacs. |
2 | Does not include redisplay. | |
89bca612 | 3 | Copyright (C) 1985, 1986, 1987, 1993, 1994 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 | ||
18160b98 | 21 | #include <config.h> |
7ab12479 JB |
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 | |
806b4d9b | 32 | Lisp_Object Qwindowp, Qwindow_live_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 | ||
7ab12479 JB |
63 | /* Non-nil means it's function to call to display temp buffers. */ |
64 | Lisp_Object Vtemp_buffer_show_function; | |
65 | ||
66 | /* If a window gets smaller than either of these, it is removed. */ | |
67 | int window_min_height; | |
68 | int window_min_width; | |
69 | ||
70 | /* Nonzero implies Fdisplay_buffer should create windows. */ | |
71 | int pop_up_windows; | |
72 | ||
44fa5b1e JB |
73 | /* Nonzero implies make new frames for Fdisplay_buffer. */ |
74 | int pop_up_frames; | |
7ab12479 JB |
75 | |
76 | /* Non-nil means use this function instead of default */ | |
44fa5b1e | 77 | Lisp_Object Vpop_up_frame_function; |
7ab12479 JB |
78 | |
79 | /* Function to call to handle Fdisplay_buffer. */ | |
80 | Lisp_Object Vdisplay_buffer_function; | |
81 | ||
a90712c2 RS |
82 | /* List of buffer *names* for buffers that should have their own frames. */ |
83 | Lisp_Object Vspecial_display_buffer_names; | |
84 | ||
85 | /* List of regexps for buffer names that should have their own frames. */ | |
86 | Lisp_Object Vspecial_display_regexps; | |
87 | ||
88 | /* Function to pop up a special frame. */ | |
89 | Lisp_Object Vspecial_display_function; | |
90 | ||
7ab12479 JB |
91 | /* Fdisplay_buffer always splits the largest window |
92 | if that window is more than this high. */ | |
93 | int split_height_threshold; | |
94 | ||
95 | /* Number of lines of continuity in scrolling by screenfuls. */ | |
96 | int next_screen_context_lines; | |
97 | ||
98 | /* Incremented for each window created. */ | |
99 | static int sequence_number; | |
100 | ||
101 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
102 | \f | |
103 | DEFUN ("windowp", Fwindowp, Swindowp, 1, 1, 0, | |
104 | "Returns t if OBJ is a window.") | |
105 | (obj) | |
106 | Lisp_Object obj; | |
107 | { | |
017b2bad | 108 | return WINDOWP (obj) ? Qt : Qnil; |
7ab12479 JB |
109 | } |
110 | ||
806b4d9b | 111 | DEFUN ("window-live-p", Fwindow_live_p, Swindow_live_p, 1, 1, 0, |
605be8af JB |
112 | "Returns t if OBJ is a window which is currently visible.") |
113 | (obj) | |
114 | Lisp_Object obj; | |
115 | { | |
017b2bad | 116 | return (WINDOWP (obj) && ! NILP (XWINDOW (obj)->buffer) ? Qt : Qnil); |
605be8af JB |
117 | } |
118 | ||
7ab12479 JB |
119 | Lisp_Object |
120 | make_window () | |
121 | { | |
122 | register Lisp_Object val; | |
123 | register struct window *p; | |
124 | ||
125 | /* Add sizeof (Lisp_Object) here because sizeof (struct Lisp_Vector) | |
126 | includes the first element. */ | |
127 | val = Fmake_vector ( | |
128 | make_number ((sizeof (struct window) - sizeof (struct Lisp_Vector) | |
129 | + sizeof (Lisp_Object)) | |
130 | / sizeof (Lisp_Object)), | |
131 | Qnil); | |
132 | XSETTYPE (val, Lisp_Window); | |
133 | p = XWINDOW (val); | |
d834a2e9 KH |
134 | XSETFASTINT (p->sequence_number, ++sequence_number); |
135 | XSETFASTINT (p->left, 0); | |
136 | XSETFASTINT (p->top, 0); | |
137 | XSETFASTINT (p->height, 0); | |
138 | XSETFASTINT (p->width, 0); | |
139 | XSETFASTINT (p->hscroll, 0); | |
140 | XSETFASTINT (p->last_point_x, 0); | |
141 | XSETFASTINT (p->last_point_y, 0); | |
7ab12479 JB |
142 | p->start = Fmake_marker (); |
143 | p->pointm = Fmake_marker (); | |
d834a2e9 | 144 | XSETFASTINT (p->use_time, 0); |
44fa5b1e | 145 | p->frame = Qnil; |
7ab12479 JB |
146 | p->display_table = Qnil; |
147 | p->dedicated = Qnil; | |
148 | return val; | |
149 | } | |
150 | ||
151 | DEFUN ("selected-window", Fselected_window, Sselected_window, 0, 0, 0, | |
152 | "Return the window that the cursor now appears in and commands apply to.") | |
153 | () | |
154 | { | |
155 | return selected_window; | |
156 | } | |
157 | ||
83762ba4 JB |
158 | DEFUN ("minibuffer-window", Fminibuffer_window, Sminibuffer_window, 0, 1, 0, |
159 | "Return the window used now for minibuffers.\n\ | |
160 | If the optional argument FRAME is specified, return the minibuffer window\n\ | |
161 | used by that frame.") | |
162 | (frame) | |
163 | Lisp_Object frame; | |
7ab12479 | 164 | { |
44fa5b1e | 165 | #ifdef MULTI_FRAME |
83762ba4 | 166 | if (NILP (frame)) |
74112613 | 167 | XSETFRAME (frame, selected_frame); |
83762ba4 JB |
168 | else |
169 | CHECK_LIVE_FRAME (frame, 0); | |
170 | #endif | |
171 | ||
172 | return FRAME_MINIBUF_WINDOW (XFRAME (frame)); | |
7ab12479 JB |
173 | } |
174 | ||
605be8af | 175 | DEFUN ("window-minibuffer-p", Fwindow_minibuffer_p, Swindow_minibuffer_p, 0, 1, 0, |
7ab12479 JB |
176 | "Returns non-nil if WINDOW is a minibuffer window.") |
177 | (window) | |
178 | Lisp_Object window; | |
179 | { | |
180 | struct window *w = decode_window (window); | |
181 | return (MINI_WINDOW_P (w) ? Qt : Qnil); | |
182 | } | |
183 | ||
184 | DEFUN ("pos-visible-in-window-p", Fpos_visible_in_window_p, | |
185 | Spos_visible_in_window_p, 0, 2, 0, | |
44fa5b1e | 186 | "Return t if position POS is currently on the frame in WINDOW.\n\ |
7ab12479 JB |
187 | Returns nil if that position is scrolled vertically out of view.\n\ |
188 | POS defaults to point; WINDOW, to the selected window.") | |
189 | (pos, window) | |
190 | Lisp_Object pos, window; | |
191 | { | |
192 | register struct window *w; | |
193 | register int top; | |
194 | register int height; | |
195 | register int posint; | |
196 | register struct buffer *buf; | |
197 | struct position posval; | |
afdb2485 | 198 | int hscroll; |
7ab12479 | 199 | |
265a9e55 | 200 | if (NILP (pos)) |
5ce7b543 | 201 | posint = PT; |
7ab12479 JB |
202 | else |
203 | { | |
204 | CHECK_NUMBER_COERCE_MARKER (pos, 0); | |
205 | posint = XINT (pos); | |
206 | } | |
207 | ||
605be8af | 208 | w = decode_window (window); |
7ab12479 | 209 | top = marker_position (w->start); |
afdb2485 | 210 | hscroll = XINT (w->hscroll); |
7ab12479 JB |
211 | |
212 | if (posint < top) | |
213 | return Qnil; | |
214 | ||
215 | height = XFASTINT (w->height) - ! MINI_WINDOW_P (w); | |
216 | ||
217 | buf = XBUFFER (w->buffer); | |
218 | if (XFASTINT (w->last_modified) >= BUF_MODIFF (buf)) | |
219 | { | |
44fa5b1e | 220 | /* If frame is up to date, |
7ab12479 JB |
221 | use the info recorded about how much text fit on it. */ |
222 | if (posint < BUF_Z (buf) - XFASTINT (w->window_end_pos) | |
223 | || (XFASTINT (w->window_end_vpos) < height)) | |
224 | return Qt; | |
225 | return Qnil; | |
226 | } | |
227 | else | |
228 | { | |
33eb4ede | 229 | if (posint > BUF_ZV (buf)) |
7ab12479 JB |
230 | return Qnil; |
231 | ||
61b5322b RS |
232 | /* w->start can be out of range. If it is, do something reasonable. */ |
233 | if (top < BUF_BEGV (buf) || top > BUF_ZV (buf)) | |
234 | return Qnil; | |
235 | ||
7ab12479 | 236 | /* If that info is not correct, calculate afresh */ |
afdb2485 KH |
237 | posval = *compute_motion (top, 0, (hscroll ? 1 - hscroll : 0), |
238 | posint, height, 0, | |
535e0b8e | 239 | window_internal_width (w) - 1, |
e37f06d7 | 240 | hscroll, 0, w); |
7ab12479 JB |
241 | |
242 | return posval.vpos < height ? Qt : Qnil; | |
243 | } | |
244 | } | |
245 | \f | |
246 | static struct window * | |
247 | decode_window (window) | |
248 | register Lisp_Object window; | |
249 | { | |
265a9e55 | 250 | if (NILP (window)) |
7ab12479 JB |
251 | return XWINDOW (selected_window); |
252 | ||
605be8af | 253 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
254 | return XWINDOW (window); |
255 | } | |
256 | ||
257 | DEFUN ("window-buffer", Fwindow_buffer, Swindow_buffer, 0, 1, 0, | |
258 | "Return the buffer that WINDOW is displaying.") | |
259 | (window) | |
260 | Lisp_Object window; | |
261 | { | |
262 | return decode_window (window)->buffer; | |
263 | } | |
264 | ||
265 | DEFUN ("window-height", Fwindow_height, Swindow_height, 0, 1, 0, | |
266 | "Return the number of lines in WINDOW (including its mode line).") | |
267 | (window) | |
268 | Lisp_Object window; | |
269 | { | |
270 | return decode_window (window)->height; | |
271 | } | |
272 | ||
273 | DEFUN ("window-width", Fwindow_width, Swindow_width, 0, 1, 0, | |
3b5908ef RS |
274 | "Return the number of display columns in WINDOW.\n\ |
275 | This is the width that is usable columns available for text in WINDOW.\n\ | |
276 | If you want to find out how many columns WINDOW takes up,\n\ | |
277 | use (let ((edges (window-edges))) (- (nth 2 edges) (nth 0 edges))).") | |
7ab12479 JB |
278 | (window) |
279 | Lisp_Object window; | |
280 | { | |
ee61d94e | 281 | return make_number (window_internal_width (decode_window (window))); |
7ab12479 JB |
282 | } |
283 | ||
284 | DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0, | |
285 | "Return the number of columns by which WINDOW is scrolled from left margin.") | |
286 | (window) | |
287 | Lisp_Object window; | |
288 | { | |
289 | return decode_window (window)->hscroll; | |
290 | } | |
291 | ||
292 | DEFUN ("set-window-hscroll", Fset_window_hscroll, Sset_window_hscroll, 2, 2, 0, | |
293 | "Set number of columns WINDOW is scrolled from left margin to NCOL.\n\ | |
294 | NCOL should be zero or positive.") | |
295 | (window, ncol) | |
296 | register Lisp_Object window, ncol; | |
297 | { | |
298 | register struct window *w; | |
299 | ||
300 | CHECK_NUMBER (ncol, 1); | |
d834a2e9 | 301 | if (XINT (ncol) < 0) XSETFASTINT (ncol, 0); |
7ab12479 JB |
302 | if (XFASTINT (ncol) >= (1 << (SHORTBITS - 1))) |
303 | args_out_of_range (ncol, Qnil); | |
304 | w = decode_window (window); | |
7f4161e0 | 305 | if (XINT (w->hscroll) != XINT (ncol)) |
7ab12479 JB |
306 | clip_changed = 1; /* Prevent redisplay shortcuts */ |
307 | w->hscroll = ncol; | |
308 | return ncol; | |
309 | } | |
310 | ||
311 | DEFUN ("window-edges", Fwindow_edges, Swindow_edges, 0, 1, 0, | |
312 | "Return a list of the edge coordinates of WINDOW.\n\ | |
44fa5b1e | 313 | \(LEFT TOP RIGHT BOTTOM), all relative to 0, 0 at top left corner of frame.\n\ |
7ab12479 JB |
314 | RIGHT is one more than the rightmost column used by WINDOW,\n\ |
315 | and BOTTOM is one more than the bottommost row used by WINDOW\n\ | |
316 | and its mode-line.") | |
317 | (window) | |
318 | Lisp_Object window; | |
319 | { | |
320 | register struct window *w = decode_window (window); | |
321 | ||
322 | return Fcons (w->left, Fcons (w->top, | |
323 | Fcons (make_number (XFASTINT (w->left) + XFASTINT (w->width)), | |
324 | Fcons (make_number (XFASTINT (w->top) | |
325 | + XFASTINT (w->height)), | |
326 | Qnil)))); | |
327 | } | |
328 | ||
d5783c40 JB |
329 | /* Test if the character at column *x, row *y is within window *w. |
330 | If it is not, return 0; | |
331 | if it is in the window's text area, | |
332 | set *x and *y to its location relative to the upper left corner | |
333 | of the window, and | |
334 | return 1; | |
335 | if it is on the window's modeline, return 2; | |
336 | if it is on the border between the window and its right sibling, | |
337 | return 3. */ | |
338 | static int | |
339 | coordinates_in_window (w, x, y) | |
340 | register struct window *w; | |
341 | register int *x, *y; | |
342 | { | |
343 | register int left = XINT (w->left); | |
344 | register int width = XINT (w->width); | |
345 | register int window_height = XINT (w->height); | |
346 | register int top = XFASTINT (w->top); | |
347 | ||
348 | if ( *x < left || *x >= left + width | |
349 | || *y < top || *y >= top + window_height) | |
350 | return 0; | |
351 | ||
352 | /* Is the character is the mode line? */ | |
353 | if (*y == top + window_height - 1 | |
05c2896a | 354 | && ! MINI_WINDOW_P (w)) |
d5783c40 JB |
355 | return 2; |
356 | ||
357 | /* Is the character in the right border? */ | |
358 | if (*x == left + width - 1 | |
44fa5b1e | 359 | && left + width != FRAME_WIDTH (XFRAME (w->frame))) |
d5783c40 JB |
360 | return 3; |
361 | ||
362 | *x -= left; | |
363 | *y -= top; | |
364 | return 1; | |
365 | } | |
366 | ||
367 | DEFUN ("coordinates-in-window-p", Fcoordinates_in_window_p, | |
368 | Scoordinates_in_window_p, 2, 2, 0, | |
369 | "Return non-nil if COORDINATES are in WINDOW.\n\ | |
1113d9db | 370 | COORDINATES is a cons of the form (X . Y), X and Y being distances\n\ |
44fa5b1e | 371 | measured in characters from the upper-left corner of the frame.\n\ |
1113d9db | 372 | (0 . 0) denotes the character in the upper left corner of the\n\ |
44fa5b1e | 373 | frame.\n\ |
d5783c40 JB |
374 | If COORDINATES are in the text portion of WINDOW,\n\ |
375 | the coordinates relative to the window are returned.\n\ | |
e5d77022 | 376 | If they are in the mode line of WINDOW, `mode-line' is returned.\n\ |
d5783c40 | 377 | If they are on the border between WINDOW and its right sibling,\n\ |
e5d77022 | 378 | `vertical-line' is returned.") |
d5783c40 JB |
379 | (coordinates, window) |
380 | register Lisp_Object coordinates, window; | |
381 | { | |
382 | int x, y; | |
383 | ||
605be8af | 384 | CHECK_LIVE_WINDOW (window, 0); |
d5783c40 JB |
385 | CHECK_CONS (coordinates, 1); |
386 | x = XINT (Fcar (coordinates)); | |
387 | y = XINT (Fcdr (coordinates)); | |
388 | ||
389 | switch (coordinates_in_window (XWINDOW (window), &x, &y)) | |
390 | { | |
391 | case 0: /* NOT in window at all. */ | |
392 | return Qnil; | |
393 | ||
394 | case 1: /* In text part of window. */ | |
395 | return Fcons (x, y); | |
396 | ||
397 | case 2: /* In mode line of window. */ | |
398 | return Qmode_line; | |
399 | ||
400 | case 3: /* On right border of window. */ | |
e5d77022 | 401 | return Qvertical_line; |
d5783c40 JB |
402 | |
403 | default: | |
404 | abort (); | |
405 | } | |
406 | } | |
407 | ||
7ab12479 | 408 | /* Find the window containing column x, row y, and return it as a |
d5783c40 JB |
409 | Lisp_Object. If x, y is on the window's modeline, set *part |
410 | to 1; if it is on the separating line between the window and its | |
411 | right sibling, set it to 2; otherwise set it to 0. If there is no | |
412 | window under x, y return nil and leave *part unmodified. */ | |
7ab12479 | 413 | Lisp_Object |
44fa5b1e JB |
414 | window_from_coordinates (frame, x, y, part) |
415 | FRAME_PTR frame; | |
7ab12479 | 416 | int x, y; |
d5783c40 | 417 | int *part; |
7ab12479 JB |
418 | { |
419 | register Lisp_Object tem, first; | |
420 | ||
44fa5b1e | 421 | tem = first = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 422 | |
d5783c40 | 423 | do |
7ab12479 JB |
424 | { |
425 | int found = coordinates_in_window (XWINDOW (tem), &x, &y); | |
426 | ||
427 | if (found) | |
428 | { | |
d5783c40 | 429 | *part = found - 1; |
7ab12479 JB |
430 | return tem; |
431 | } | |
432 | ||
d5783c40 | 433 | tem = Fnext_window (tem, Qt, Qlambda); |
7ab12479 | 434 | } |
d5783c40 JB |
435 | while (! EQ (tem, first)); |
436 | ||
437 | return Qnil; | |
7ab12479 JB |
438 | } |
439 | ||
ab17c3f2 | 440 | DEFUN ("window-at", Fwindow_at, Swindow_at, 2, 3, 0, |
b0c33a94 | 441 | "Return window containing coordinates X and Y on FRAME.\n\ |
44fa5b1e JB |
442 | If omitted, FRAME defaults to the currently selected frame.\n\ |
443 | The top left corner of the frame is considered to be row 0,\n\ | |
95605e15 | 444 | column 0.") |
b0c33a94 RS |
445 | (x, y, frame) |
446 | Lisp_Object x, y, frame; | |
7ab12479 JB |
447 | { |
448 | int part; | |
449 | ||
4b206065 | 450 | #ifdef MULTI_FRAME |
44fa5b1e | 451 | if (NILP (frame)) |
74112613 | 452 | XSETFRAME (frame, selected_frame); |
d5783c40 | 453 | else |
44fa5b1e | 454 | CHECK_LIVE_FRAME (frame, 2); |
4b206065 | 455 | #endif |
b0c33a94 RS |
456 | CHECK_NUMBER (x, 0); |
457 | CHECK_NUMBER (y, 1); | |
7ab12479 | 458 | |
44fa5b1e | 459 | return window_from_coordinates (XFRAME (frame), |
b0c33a94 | 460 | XINT (x), XINT (y), |
7ab12479 JB |
461 | &part); |
462 | } | |
463 | ||
464 | DEFUN ("window-point", Fwindow_point, Swindow_point, 0, 1, 0, | |
465 | "Return current value of point in WINDOW.\n\ | |
466 | For a nonselected window, this is the value point would have\n\ | |
467 | if that window were selected.\n\ | |
468 | \n\ | |
469 | Note that, when WINDOW is the selected window and its buffer\n\ | |
470 | is also currently selected, the value returned is the same as (point).\n\ | |
471 | It would be more strictly correct to return the `top-level' value\n\ | |
472 | of point, outside of any save-excursion forms.\n\ | |
473 | But that is hard to define.") | |
474 | (window) | |
475 | Lisp_Object window; | |
476 | { | |
477 | register struct window *w = decode_window (window); | |
478 | ||
479 | if (w == XWINDOW (selected_window) | |
480 | && current_buffer == XBUFFER (w->buffer)) | |
481 | return Fpoint (); | |
482 | return Fmarker_position (w->pointm); | |
483 | } | |
484 | ||
485 | DEFUN ("window-start", Fwindow_start, Swindow_start, 0, 1, 0, | |
486 | "Return position at which display currently starts in WINDOW.") | |
487 | (window) | |
488 | Lisp_Object window; | |
489 | { | |
490 | return Fmarker_position (decode_window (window)->start); | |
491 | } | |
492 | ||
8646118f RS |
493 | /* This is text temporarily removed from the doc string below. |
494 | ||
7250968e RS |
495 | This function returns nil if the position is not currently known.\n\ |
496 | That happens when redisplay is preempted and doesn't finish.\n\ | |
497 | If in that case you want to compute where the end of the window would\n\ | |
498 | have been if redisplay had finished, do this:\n\ | |
499 | (save-excursion\n\ | |
500 | (goto-char (window-start window))\n\ | |
501 | (vertical-motion (1- (window-height window)) window)\n\ | |
8646118f RS |
502 | (point))") */ |
503 | ||
504 | DEFUN ("window-end", Fwindow_end, Swindow_end, 0, 1, 0, | |
505 | "Return position at which display currently ends in WINDOW.\n\ | |
506 | This is updated by redisplay, when it runs to completion.\n\ | |
507 | Simply changing the buffer text or setting `window-start'\n\ | |
508 | does not update this value.") | |
7ab12479 JB |
509 | (window) |
510 | Lisp_Object window; | |
511 | { | |
512 | Lisp_Object value; | |
513 | struct window *w = decode_window (window); | |
5a41ab94 RS |
514 | Lisp_Object buf; |
515 | ||
516 | buf = w->buffer; | |
517 | CHECK_BUFFER (buf, 0); | |
518 | ||
8646118f | 519 | #if 0 /* This change broke some things. We should make it later. */ |
7250968e RS |
520 | /* If we don't know the end position, return nil. |
521 | The user can compute it with vertical-motion if he wants to. | |
522 | It would be nicer to do it automatically, | |
523 | but that's so slow that it would probably bother people. */ | |
524 | if (NILP (w->window_end_valid)) | |
525 | return Qnil; | |
8646118f | 526 | #endif |
7250968e | 527 | |
74112613 KH |
528 | XSETINT (value, |
529 | BUF_Z (XBUFFER (buf)) - XFASTINT (w->window_end_pos)); | |
7ab12479 JB |
530 | |
531 | return value; | |
532 | } | |
533 | ||
534 | DEFUN ("set-window-point", Fset_window_point, Sset_window_point, 2, 2, 0, | |
535 | "Make point value in WINDOW be at position POS in WINDOW's buffer.") | |
536 | (window, pos) | |
537 | Lisp_Object window, pos; | |
538 | { | |
539 | register struct window *w = decode_window (window); | |
540 | ||
541 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
542 | if (w == XWINDOW (selected_window)) | |
543 | Fgoto_char (pos); | |
544 | else | |
545 | set_marker_restricted (w->pointm, pos, w->buffer); | |
546 | ||
547 | return pos; | |
548 | } | |
549 | ||
550 | DEFUN ("set-window-start", Fset_window_start, Sset_window_start, 2, 3, 0, | |
551 | "Make display in WINDOW start at position POS in WINDOW's buffer.\n\ | |
552 | Optional third arg NOFORCE non-nil inhibits next redisplay\n\ | |
553 | from overriding motion of point in order to display at this exact start.") | |
554 | (window, pos, noforce) | |
555 | Lisp_Object window, pos, noforce; | |
556 | { | |
557 | register struct window *w = decode_window (window); | |
558 | ||
559 | CHECK_NUMBER_COERCE_MARKER (pos, 1); | |
560 | set_marker_restricted (w->start, pos, w->buffer); | |
561 | /* this is not right, but much easier than doing what is right. */ | |
562 | w->start_at_line_beg = Qnil; | |
265a9e55 | 563 | if (NILP (noforce)) |
7ab12479 JB |
564 | w->force_start = Qt; |
565 | w->update_mode_line = Qt; | |
d834a2e9 | 566 | XSETFASTINT (w->last_modified, 0); |
62c07cc7 JB |
567 | if (!EQ (window, selected_window)) |
568 | windows_or_buffers_changed++; | |
7ab12479 JB |
569 | return pos; |
570 | } | |
571 | ||
572 | DEFUN ("window-dedicated-p", Fwindow_dedicated_p, Swindow_dedicated_p, | |
573 | 1, 1, 0, | |
574 | "Return WINDOW's dedicated object, usually t or nil.\n\ | |
1f18c48f | 575 | See also `set-window-dedicated-p'.") |
7ab12479 JB |
576 | (window) |
577 | Lisp_Object window; | |
578 | { | |
579 | return decode_window (window)->dedicated; | |
580 | } | |
581 | ||
d207b766 RS |
582 | DEFUN ("set-window-dedicated-p", Fset_window_dedicated_p, |
583 | Sset_window_dedicated_p, 2, 2, 0, | |
584 | "Control whether WINDOW is dedicated to the buffer it displays.\n\ | |
585 | If it is dedicated, Emacs will not automatically change\n\ | |
586 | which buffer appears in it.\n\ | |
587 | The second argument is the new value for the dedication flag;\n\ | |
588 | non-nil means yes.") | |
7ab12479 JB |
589 | (window, arg) |
590 | Lisp_Object window, arg; | |
591 | { | |
592 | register struct window *w = decode_window (window); | |
593 | ||
265a9e55 | 594 | if (NILP (arg)) |
7ab12479 JB |
595 | w->dedicated = Qnil; |
596 | else | |
d207b766 | 597 | w->dedicated = Qt; |
7ab12479 JB |
598 | |
599 | return w->dedicated; | |
600 | } | |
601 | ||
602 | DEFUN ("window-display-table", Fwindow_display_table, Swindow_display_table, | |
603 | 0, 1, 0, | |
604 | "Return the display-table that WINDOW is using.") | |
605 | (window) | |
606 | Lisp_Object window; | |
607 | { | |
608 | return decode_window (window)->display_table; | |
609 | } | |
610 | ||
611 | /* Get the display table for use currently on window W. | |
612 | This is either W's display table or W's buffer's display table. | |
613 | Ignore the specified tables if they are not valid; | |
614 | if no valid table is specified, return 0. */ | |
615 | ||
616 | struct Lisp_Vector * | |
617 | window_display_table (w) | |
618 | struct window *w; | |
619 | { | |
620 | Lisp_Object tem; | |
621 | tem = w->display_table; | |
017b2bad | 622 | if (VECTORP (tem) && XVECTOR (tem)->size == DISP_TABLE_SIZE) |
7ab12479 JB |
623 | return XVECTOR (tem); |
624 | tem = XBUFFER (w->buffer)->display_table; | |
017b2bad | 625 | if (VECTORP (tem) && XVECTOR (tem)->size == DISP_TABLE_SIZE) |
7ab12479 JB |
626 | return XVECTOR (tem); |
627 | tem = Vstandard_display_table; | |
017b2bad | 628 | if (VECTORP (tem) && XVECTOR (tem)->size == DISP_TABLE_SIZE) |
7ab12479 JB |
629 | return XVECTOR (tem); |
630 | return 0; | |
631 | } | |
632 | ||
3a2712f9 | 633 | DEFUN ("set-window-display-table", Fset_window_display_table, Sset_window_display_table, 2, 2, 0, |
7ab12479 JB |
634 | "Set WINDOW's display-table to TABLE.") |
635 | (window, table) | |
636 | register Lisp_Object window, table; | |
637 | { | |
638 | register struct window *w; | |
639 | register Lisp_Object z; /* Return value. */ | |
640 | ||
641 | w = decode_window (window); | |
642 | w->display_table = table; | |
643 | return table; | |
644 | } | |
645 | \f | |
646 | /* Record info on buffer window w is displaying | |
647 | when it is about to cease to display that buffer. */ | |
648 | static | |
649 | unshow_buffer (w) | |
650 | register struct window *w; | |
651 | { | |
12cae7c0 | 652 | Lisp_Object buf; |
7ab12479 | 653 | |
12cae7c0 | 654 | buf = w->buffer; |
7ab12479 JB |
655 | if (XBUFFER (buf) != XMARKER (w->pointm)->buffer) |
656 | abort (); | |
657 | ||
573f41ab | 658 | #if 0 |
7ab12479 JB |
659 | if (w == XWINDOW (selected_window) |
660 | || ! EQ (buf, XWINDOW (selected_window)->buffer)) | |
661 | /* Do this except when the selected window's buffer | |
662 | is being removed from some other window. */ | |
573f41ab RS |
663 | #endif |
664 | /* last_window_start records the start position that this buffer | |
665 | had in the last window to be disconnected from it. | |
666 | Now that this statement is unconditional, | |
667 | it is possible for the buffer to be displayed in the | |
668 | selected window, while last_window_start reflects another | |
669 | window which was recently showing the same buffer. | |
670 | Some people might say that might be a good thing. Let's see. */ | |
7ab12479 JB |
671 | XBUFFER (buf)->last_window_start = marker_position (w->start); |
672 | ||
673 | /* Point in the selected window's buffer | |
674 | is actually stored in that buffer, and the window's pointm isn't used. | |
675 | So don't clobber point in that buffer. */ | |
676 | if (! EQ (buf, XWINDOW (selected_window)->buffer)) | |
677 | BUF_PT (XBUFFER (buf)) | |
678 | = clip_to_bounds (BUF_BEGV (XBUFFER (buf)), | |
679 | marker_position (w->pointm), | |
680 | BUF_ZV (XBUFFER (buf))); | |
681 | } | |
682 | ||
683 | /* Put replacement into the window structure in place of old. */ | |
684 | static | |
685 | replace_window (old, replacement) | |
686 | Lisp_Object old, replacement; | |
687 | { | |
688 | register Lisp_Object tem; | |
689 | register struct window *o = XWINDOW (old), *p = XWINDOW (replacement); | |
690 | ||
44fa5b1e JB |
691 | /* If OLD is its frame's root_window, then replacement is the new |
692 | root_window for that frame. */ | |
7ab12479 | 693 | |
7f4161e0 | 694 | if (EQ (old, FRAME_ROOT_WINDOW (XFRAME (o->frame)))) |
44fa5b1e | 695 | FRAME_ROOT_WINDOW (XFRAME (o->frame)) = replacement; |
7ab12479 JB |
696 | |
697 | p->left = o->left; | |
698 | p->top = o->top; | |
699 | p->width = o->width; | |
700 | p->height = o->height; | |
701 | ||
702 | p->next = tem = o->next; | |
265a9e55 | 703 | if (!NILP (tem)) |
7ab12479 JB |
704 | XWINDOW (tem)->prev = replacement; |
705 | ||
706 | p->prev = tem = o->prev; | |
265a9e55 | 707 | if (!NILP (tem)) |
7ab12479 JB |
708 | XWINDOW (tem)->next = replacement; |
709 | ||
710 | p->parent = tem = o->parent; | |
265a9e55 | 711 | if (!NILP (tem)) |
7ab12479 JB |
712 | { |
713 | if (EQ (XWINDOW (tem)->vchild, old)) | |
714 | XWINDOW (tem)->vchild = replacement; | |
715 | if (EQ (XWINDOW (tem)->hchild, old)) | |
716 | XWINDOW (tem)->hchild = replacement; | |
717 | } | |
718 | ||
719 | /*** Here, if replacement is a vertical combination | |
720 | and so is its new parent, we should make replacement's | |
721 | children be children of that parent instead. ***/ | |
722 | } | |
723 | ||
724 | DEFUN ("delete-window", Fdelete_window, Sdelete_window, 0, 1, "", | |
725 | "Remove WINDOW from the display. Default is selected window.") | |
726 | (window) | |
727 | register Lisp_Object window; | |
728 | { | |
729 | register Lisp_Object tem, parent, sib; | |
730 | register struct window *p; | |
731 | register struct window *par; | |
732 | ||
605be8af JB |
733 | /* Because this function is called by other C code on non-leaf |
734 | windows, the CHECK_LIVE_WINDOW macro would choke inappropriately, | |
735 | so we can't decode_window here. */ | |
265a9e55 | 736 | if (NILP (window)) |
7ab12479 JB |
737 | window = selected_window; |
738 | else | |
739 | CHECK_WINDOW (window, 0); | |
7ab12479 | 740 | p = XWINDOW (window); |
605be8af JB |
741 | |
742 | /* It's okay to delete an already-deleted window. */ | |
743 | if (NILP (p->buffer) | |
744 | && NILP (p->hchild) | |
745 | && NILP (p->vchild)) | |
746 | return Qnil; | |
747 | ||
7ab12479 | 748 | parent = p->parent; |
265a9e55 | 749 | if (NILP (parent)) |
7ab12479 JB |
750 | error ("Attempt to delete minibuffer or sole ordinary window"); |
751 | par = XWINDOW (parent); | |
752 | ||
753 | windows_or_buffers_changed++; | |
754 | ||
605be8af JB |
755 | /* Are we trying to delete any frame's selected window? */ |
756 | { | |
0def0403 | 757 | Lisp_Object frame, pwindow; |
605be8af | 758 | |
0def0403 RS |
759 | /* See if the frame's selected window is either WINDOW |
760 | or any subwindow of it, by finding all that window's parents | |
761 | and comparing each one with WINDOW. */ | |
762 | frame = WINDOW_FRAME (XWINDOW (window)); | |
763 | pwindow = FRAME_SELECTED_WINDOW (XFRAME (frame)); | |
764 | ||
765 | while (!NILP (pwindow)) | |
766 | { | |
767 | if (EQ (window, pwindow)) | |
768 | break; | |
769 | pwindow = XWINDOW (pwindow)->parent; | |
770 | } | |
771 | ||
772 | if (EQ (window, pwindow)) | |
605be8af | 773 | { |
89bca612 RS |
774 | Lisp_Object alternative; |
775 | alternative = Fnext_window (window, Qlambda, Qnil); | |
605be8af JB |
776 | |
777 | /* If we're about to delete the selected window on the | |
778 | selected frame, then we should use Fselect_window to select | |
779 | the new window. On the other hand, if we're about to | |
780 | delete the selected window on any other frame, we shouldn't do | |
781 | anything but set the frame's selected_window slot. */ | |
782 | if (EQ (window, selected_window)) | |
783 | Fselect_window (alternative); | |
784 | else | |
0def0403 | 785 | FRAME_SELECTED_WINDOW (XFRAME (frame)) = alternative; |
605be8af JB |
786 | } |
787 | } | |
7ab12479 JB |
788 | |
789 | tem = p->buffer; | |
790 | /* tem is null for dummy parent windows | |
791 | (which have inferiors but not any contents themselves) */ | |
265a9e55 | 792 | if (!NILP (tem)) |
7ab12479 JB |
793 | { |
794 | unshow_buffer (p); | |
795 | unchain_marker (p->pointm); | |
796 | unchain_marker (p->start); | |
7ab12479 JB |
797 | } |
798 | ||
799 | tem = p->next; | |
265a9e55 | 800 | if (!NILP (tem)) |
7ab12479 JB |
801 | XWINDOW (tem)->prev = p->prev; |
802 | ||
803 | tem = p->prev; | |
265a9e55 | 804 | if (!NILP (tem)) |
7ab12479 JB |
805 | XWINDOW (tem)->next = p->next; |
806 | ||
807 | if (EQ (window, par->hchild)) | |
808 | par->hchild = p->next; | |
809 | if (EQ (window, par->vchild)) | |
810 | par->vchild = p->next; | |
811 | ||
812 | /* Find one of our siblings to give our space to. */ | |
813 | sib = p->prev; | |
265a9e55 | 814 | if (NILP (sib)) |
7ab12479 JB |
815 | { |
816 | /* If p gives its space to its next sibling, that sibling needs | |
817 | to have its top/left side pulled back to where p's is. | |
818 | set_window_{height,width} will re-position the sibling's | |
819 | children. */ | |
820 | sib = p->next; | |
7f4161e0 JB |
821 | XWINDOW (sib)->top = p->top; |
822 | XWINDOW (sib)->left = p->left; | |
7ab12479 JB |
823 | } |
824 | ||
825 | /* Stretch that sibling. */ | |
265a9e55 | 826 | if (!NILP (par->vchild)) |
7ab12479 JB |
827 | set_window_height (sib, |
828 | XFASTINT (XWINDOW (sib)->height) + XFASTINT (p->height), | |
829 | 1); | |
265a9e55 | 830 | if (!NILP (par->hchild)) |
7ab12479 JB |
831 | set_window_width (sib, |
832 | XFASTINT (XWINDOW (sib)->width) + XFASTINT (p->width), | |
833 | 1); | |
834 | ||
835 | /* If parent now has only one child, | |
836 | put the child into the parent's place. */ | |
7ab12479 | 837 | tem = par->hchild; |
265a9e55 | 838 | if (NILP (tem)) |
7ab12479 | 839 | tem = par->vchild; |
265a9e55 | 840 | if (NILP (XWINDOW (tem)->next)) |
7ab12479 | 841 | replace_window (parent, tem); |
605be8af JB |
842 | |
843 | /* Since we may be deleting combination windows, we must make sure that | |
844 | not only p but all its children have been marked as deleted. */ | |
845 | if (! NILP (p->hchild)) | |
846 | delete_all_subwindows (XWINDOW (p->hchild)); | |
847 | else if (! NILP (p->vchild)) | |
848 | delete_all_subwindows (XWINDOW (p->vchild)); | |
849 | ||
850 | /* Mark this window as deleted. */ | |
851 | p->buffer = p->hchild = p->vchild = Qnil; | |
852 | ||
7ab12479 JB |
853 | return Qnil; |
854 | } | |
855 | \f | |
7ab12479 | 856 | |
44fa5b1e | 857 | extern Lisp_Object next_frame (), prev_frame (); |
7ab12479 | 858 | |
26f6279d JB |
859 | /* This comment supplies the doc string for `next-window', |
860 | for make-docfile to see. We cannot put this in the real DEFUN | |
861 | due to limits in the Unix cpp. | |
862 | ||
863 | DEFUN ("next-window", Ffoo, Sfoo, 0, 3, 0, | |
7ab12479 | 864 | "Return next window after WINDOW in canonical ordering of windows.\n\ |
d5783c40 JB |
865 | If omitted, WINDOW defaults to the selected window.\n\ |
866 | \n\ | |
867 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
868 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
869 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
870 | minibuffer even if it is active.\n\ | |
871 | \n\ | |
44fa5b1e JB |
872 | Several frames may share a single minibuffer; if the minibuffer\n\ |
873 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 874 | too. Therefore, `next-window' can be used to iterate through the\n\ |
44fa5b1e JB |
875 | set of windows even when the minibuffer is on another frame. If the\n\ |
876 | minibuffer does not count, only windows from WINDOW's frame count.\n\ | |
d5783c40 | 877 | \n\ |
44fa5b1e JB |
878 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
879 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 880 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 881 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
89bca612 | 882 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
883 | \n\ |
884 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
885 | `next-window' to iterate through the entire cycle of acceptable\n\ | |
886 | windows, eventually ending up back at the window you started with.\n\ | |
887 | `previous-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
888 | (window, minibuf, all_frames) */ |
889 | ||
890 | DEFUN ("next-window", Fnext_window, Snext_window, 0, 3, 0, | |
891 | 0) | |
44fa5b1e JB |
892 | (window, minibuf, all_frames) |
893 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
894 | { |
895 | register Lisp_Object tem; | |
d5783c40 | 896 | Lisp_Object start_window; |
7ab12479 | 897 | |
265a9e55 | 898 | if (NILP (window)) |
7ab12479 JB |
899 | window = selected_window; |
900 | else | |
605be8af | 901 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 902 | |
d5783c40 JB |
903 | start_window = window; |
904 | ||
905 | /* minibuf == nil may or may not include minibuffers. | |
906 | Decide if it does. */ | |
265a9e55 | 907 | if (NILP (minibuf)) |
d5783c40 JB |
908 | minibuf = (minibuf_level ? Qt : Qlambda); |
909 | ||
c6e73093 | 910 | #ifdef MULTI_FRAME |
1bb80f72 | 911 | /* all_frames == nil doesn't specify which frames to include. */ |
44fa5b1e JB |
912 | if (NILP (all_frames)) |
913 | all_frames = (EQ (minibuf, Qt) | |
1bb80f72 RS |
914 | ? (FRAME_MINIBUF_WINDOW |
915 | (XFRAME | |
916 | (WINDOW_FRAME | |
917 | (XWINDOW (window))))) | |
918 | : Qnil); | |
89bca612 RS |
919 | else if (EQ (all_frames, Qvisible)) |
920 | ; | |
f812f9c6 RS |
921 | else if (XFASTINT (all_frames) == 0) |
922 | ; | |
44fa5b1e JB |
923 | else if (! EQ (all_frames, Qt)) |
924 | all_frames = Qnil; | |
644b477c RS |
925 | /* Now all_frames is t meaning search all frames, |
926 | nil meaning search just current frame, | |
f812f9c6 RS |
927 | visible meaning search just visible frames, |
928 | 0 meaning search visible and iconified frames, | |
644b477c | 929 | or a window, meaning search the frame that window belongs to. */ |
c6e73093 | 930 | #endif |
7ab12479 JB |
931 | |
932 | /* Do this loop at least once, to get the next window, and perhaps | |
933 | again, if we hit the minibuffer and that is not acceptable. */ | |
934 | do | |
935 | { | |
936 | /* Find a window that actually has a next one. This loop | |
937 | climbs up the tree. */ | |
265a9e55 JB |
938 | while (tem = XWINDOW (window)->next, NILP (tem)) |
939 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 940 | window = tem; |
d5783c40 | 941 | else |
7ab12479 | 942 | { |
44fa5b1e JB |
943 | /* We've reached the end of this frame. |
944 | Which other frames are acceptable? */ | |
945 | tem = WINDOW_FRAME (XWINDOW (window)); | |
946 | #ifdef MULTI_FRAME | |
947 | if (! NILP (all_frames)) | |
1bb80f72 RS |
948 | { |
949 | Lisp_Object tem1; | |
950 | ||
951 | tem1 = tem; | |
952 | tem = next_frame (tem, all_frames); | |
953 | /* In the case where the minibuffer is active, | |
954 | and we include its frame as well as the selected one, | |
955 | next_frame may get stuck in that frame. | |
956 | If that happens, go back to the selected frame | |
957 | so we can complete the cycle. */ | |
958 | if (EQ (tem, tem1)) | |
74112613 | 959 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 960 | } |
7ab12479 | 961 | #endif |
44fa5b1e | 962 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 963 | |
7ab12479 JB |
964 | break; |
965 | } | |
966 | ||
967 | window = tem; | |
d5783c40 | 968 | |
7ab12479 JB |
969 | /* If we're in a combination window, find its first child and |
970 | recurse on that. Otherwise, we've found the window we want. */ | |
971 | while (1) | |
972 | { | |
265a9e55 | 973 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 974 | window = XWINDOW (window)->hchild; |
265a9e55 | 975 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
976 | window = XWINDOW (window)->vchild; |
977 | else break; | |
978 | } | |
979 | } | |
d5783c40 JB |
980 | /* Which windows are acceptible? |
981 | Exit the loop and accept this window if | |
7ab12479 | 982 | this isn't a minibuffer window, or |
d5783c40 JB |
983 | we're accepting minibuffer windows, or |
984 | we've come all the way around and we're back at the original window. */ | |
7ab12479 | 985 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 986 | && ! EQ (minibuf, Qt) |
7f4161e0 | 987 | && ! EQ (window, start_window)); |
7ab12479 JB |
988 | |
989 | return window; | |
990 | } | |
991 | ||
26f6279d JB |
992 | /* This comment supplies the doc string for `previous-window', |
993 | for make-docfile to see. We cannot put this in the real DEFUN | |
994 | due to limits in the Unix cpp. | |
995 | ||
996 | DEFUN ("previous-window", Ffoo, Sfoo, 0, 3, 0, | |
d5783c40 JB |
997 | "Return the window preceeding WINDOW in canonical ordering of windows.\n\ |
998 | If omitted, WINDOW defaults to the selected window.\n\ | |
999 | \n\ | |
1000 | Optional second arg MINIBUF t means count the minibuffer window even\n\ | |
1001 | if not active. MINIBUF nil or omitted means count the minibuffer iff\n\ | |
1002 | it is active. MINIBUF neither t nor nil means not to count the\n\ | |
1003 | minibuffer even if it is active.\n\ | |
1004 | \n\ | |
44fa5b1e JB |
1005 | Several frames may share a single minibuffer; if the minibuffer\n\ |
1006 | counts, all windows on all frames that share that minibuffer count\n\ | |
ed160f1f | 1007 | too. Therefore, `previous-window' can be used to iterate through\n\ |
44fa5b1e | 1008 | the set of windows even when the minibuffer is on another frame. If\n\ |
ed160f1f | 1009 | the minibuffer does not count, only windows from WINDOW's frame count\n\ |
d5783c40 | 1010 | \n\ |
44fa5b1e JB |
1011 | Optional third arg ALL-FRAMES t means include windows on all frames.\n\ |
1012 | ALL-FRAMES nil or omitted means cycle within the frames as specified\n\ | |
89bca612 | 1013 | above. ALL-FRAMES = `visible' means include windows on all visible frames.\n\ |
f812f9c6 | 1014 | ALL-FRAMES = 0 means include windows on all visible and iconified frames.\n\ |
89bca612 | 1015 | Anything else means restrict to WINDOW's frame.\n\ |
dbc4e1c1 JB |
1016 | \n\ |
1017 | If you use consistent values for MINIBUF and ALL-FRAMES, you can use\n\ | |
1018 | `previous-window' to iterate through the entire cycle of acceptable\n\ | |
1019 | windows, eventually ending up back at the window you started with.\n\ | |
1020 | `next-window' traverses the same cycle, in the reverse order.") | |
26f6279d JB |
1021 | (window, minibuf, all_frames) */ |
1022 | ||
1023 | ||
1024 | DEFUN ("previous-window", Fprevious_window, Sprevious_window, 0, 3, 0, | |
1025 | 0) | |
44fa5b1e JB |
1026 | (window, minibuf, all_frames) |
1027 | register Lisp_Object window, minibuf, all_frames; | |
7ab12479 JB |
1028 | { |
1029 | register Lisp_Object tem; | |
d5783c40 | 1030 | Lisp_Object start_window; |
7ab12479 | 1031 | |
265a9e55 | 1032 | if (NILP (window)) |
7ab12479 JB |
1033 | window = selected_window; |
1034 | else | |
605be8af | 1035 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 | 1036 | |
d5783c40 JB |
1037 | start_window = window; |
1038 | ||
1039 | /* minibuf == nil may or may not include minibuffers. | |
1040 | Decide if it does. */ | |
265a9e55 | 1041 | if (NILP (minibuf)) |
d5783c40 JB |
1042 | minibuf = (minibuf_level ? Qt : Qlambda); |
1043 | ||
c6e73093 | 1044 | #ifdef MULTI_FRAME |
44fa5b1e JB |
1045 | /* all_frames == nil doesn't specify which frames to include. |
1046 | Decide which frames it includes. */ | |
1047 | if (NILP (all_frames)) | |
1048 | all_frames = (EQ (minibuf, Qt) | |
1049 | ? (FRAME_MINIBUF_WINDOW | |
1050 | (XFRAME | |
1051 | (WINDOW_FRAME | |
d5783c40 JB |
1052 | (XWINDOW (window))))) |
1053 | : Qnil); | |
89bca612 RS |
1054 | else if (EQ (all_frames, Qvisible)) |
1055 | ; | |
f812f9c6 RS |
1056 | else if (XFASTINT (all_frames) == 0) |
1057 | ; | |
44fa5b1e JB |
1058 | else if (! EQ (all_frames, Qt)) |
1059 | all_frames = Qnil; | |
644b477c RS |
1060 | /* Now all_frames is t meaning search all frames, |
1061 | nil meaning search just current frame, | |
f812f9c6 RS |
1062 | visible meaning search just visible frames, |
1063 | 0 meaning search visible and iconified frames, | |
644b477c | 1064 | or a window, meaning search the frame that window belongs to. */ |
c6e73093 | 1065 | #endif |
7ab12479 JB |
1066 | |
1067 | /* Do this loop at least once, to get the previous window, and perhaps | |
1068 | again, if we hit the minibuffer and that is not acceptable. */ | |
1069 | do | |
1070 | { | |
1071 | /* Find a window that actually has a previous one. This loop | |
1072 | climbs up the tree. */ | |
265a9e55 JB |
1073 | while (tem = XWINDOW (window)->prev, NILP (tem)) |
1074 | if (tem = XWINDOW (window)->parent, !NILP (tem)) | |
7ab12479 | 1075 | window = tem; |
d5783c40 | 1076 | else |
7ab12479 | 1077 | { |
44fa5b1e JB |
1078 | /* We have found the top window on the frame. |
1079 | Which frames are acceptable? */ | |
1080 | tem = WINDOW_FRAME (XWINDOW (window)); | |
1081 | #ifdef MULTI_FRAME | |
1082 | if (! NILP (all_frames)) | |
dbc4e1c1 JB |
1083 | /* It's actually important that we use prev_frame here, |
1084 | rather than next_frame. All the windows acceptable | |
1085 | according to the given parameters should form a ring; | |
1086 | Fnext_window and Fprevious_window should go back and | |
1087 | forth around the ring. If we use next_frame here, | |
1088 | then Fnext_window and Fprevious_window take different | |
1089 | paths through the set of acceptable windows. | |
1090 | window_loop assumes that these `ring' requirement are | |
1091 | met. */ | |
1bb80f72 RS |
1092 | { |
1093 | Lisp_Object tem1; | |
1094 | ||
1095 | tem1 = tem; | |
1096 | tem = prev_frame (tem, all_frames); | |
1097 | /* In the case where the minibuffer is active, | |
1098 | and we include its frame as well as the selected one, | |
1099 | next_frame may get stuck in that frame. | |
1100 | If that happens, go back to the selected frame | |
1101 | so we can complete the cycle. */ | |
1102 | if (EQ (tem, tem1)) | |
74112613 | 1103 | XSETFRAME (tem, selected_frame); |
1bb80f72 | 1104 | } |
7ab12479 | 1105 | #endif |
644b477c RS |
1106 | /* If this frame has a minibuffer, find that window first, |
1107 | because it is conceptually the last window in that frame. */ | |
5e12e32f JB |
1108 | if (FRAME_HAS_MINIBUF_P (XFRAME (tem))) |
1109 | tem = FRAME_MINIBUF_WINDOW (XFRAME (tem)); | |
1110 | else | |
644b477c | 1111 | tem = FRAME_ROOT_WINDOW (XFRAME (tem)); |
d5783c40 | 1112 | |
7ab12479 JB |
1113 | break; |
1114 | } | |
1115 | ||
1116 | window = tem; | |
1117 | /* If we're in a combination window, find its last child and | |
1118 | recurse on that. Otherwise, we've found the window we want. */ | |
1119 | while (1) | |
1120 | { | |
265a9e55 | 1121 | if (!NILP (XWINDOW (window)->hchild)) |
7ab12479 | 1122 | window = XWINDOW (window)->hchild; |
265a9e55 | 1123 | else if (!NILP (XWINDOW (window)->vchild)) |
7ab12479 JB |
1124 | window = XWINDOW (window)->vchild; |
1125 | else break; | |
265a9e55 | 1126 | while (tem = XWINDOW (window)->next, !NILP (tem)) |
7ab12479 JB |
1127 | window = tem; |
1128 | } | |
1129 | } | |
d5783c40 JB |
1130 | /* Which windows are acceptable? |
1131 | Exit the loop and accept this window if | |
7ab12479 | 1132 | this isn't a minibuffer window, or |
d5783c40 JB |
1133 | we're accepting minibuffer windows, or |
1134 | we've come all the way around and we're back at the original window. */ | |
7ab12479 | 1135 | while (MINI_WINDOW_P (XWINDOW (window)) |
d5783c40 | 1136 | && !EQ (minibuf, Qt) |
7f4161e0 | 1137 | && !EQ (window, start_window)); |
7ab12479 JB |
1138 | |
1139 | return window; | |
1140 | } | |
1141 | ||
62c07cc7 | 1142 | DEFUN ("other-window", Fother_window, Sother_window, 1, 2, "p", |
44fa5b1e JB |
1143 | "Select the ARG'th different window on this frame.\n\ |
1144 | All windows on current frame are arranged in a cyclic order.\n\ | |
7ab12479 JB |
1145 | This command selects the window ARG steps away in that order.\n\ |
1146 | A negative ARG moves in the opposite order. If the optional second\n\ | |
44fa5b1e JB |
1147 | argument ALL_FRAMES is non-nil, cycle through all frames.") |
1148 | (n, all_frames) | |
1149 | register Lisp_Object n, all_frames; | |
7ab12479 JB |
1150 | { |
1151 | register int i; | |
1152 | register Lisp_Object w; | |
1153 | ||
1154 | CHECK_NUMBER (n, 0); | |
1155 | w = selected_window; | |
1156 | i = XINT (n); | |
1157 | ||
1158 | while (i > 0) | |
1159 | { | |
44fa5b1e | 1160 | w = Fnext_window (w, Qnil, all_frames); |
7ab12479 JB |
1161 | i--; |
1162 | } | |
1163 | while (i < 0) | |
1164 | { | |
44fa5b1e | 1165 | w = Fprevious_window (w, Qnil, all_frames); |
7ab12479 JB |
1166 | i++; |
1167 | } | |
1168 | Fselect_window (w); | |
1169 | return Qnil; | |
1170 | } | |
1171 | \f | |
1172 | /* Look at all windows, performing an operation specified by TYPE | |
1173 | with argument OBJ. | |
75d8f668 | 1174 | If FRAMES is Qt, look at all frames; |
75d8f668 | 1175 | Qnil, look at just the selected frame; |
89bca612 | 1176 | Qvisible, look at visible frames; |
75d8f668 | 1177 | a frame, just look at windows on that frame. |
7ab12479 JB |
1178 | If MINI is non-zero, perform the operation on minibuffer windows too. |
1179 | */ | |
1180 | ||
1181 | enum window_loop | |
1182 | { | |
1183 | WINDOW_LOOP_UNUSED, | |
1184 | GET_BUFFER_WINDOW, /* Arg is buffer */ | |
1185 | GET_LRU_WINDOW, /* Arg is t for full-width windows only */ | |
1186 | DELETE_OTHER_WINDOWS, /* Arg is window not to delete */ | |
1187 | DELETE_BUFFER_WINDOWS, /* Arg is buffer */ | |
1188 | GET_LARGEST_WINDOW, | |
a68c0d3b | 1189 | UNSHOW_BUFFER /* Arg is buffer */ |
7ab12479 JB |
1190 | }; |
1191 | ||
1192 | static Lisp_Object | |
44fa5b1e | 1193 | window_loop (type, obj, mini, frames) |
7ab12479 | 1194 | enum window_loop type; |
44fa5b1e | 1195 | register Lisp_Object obj, frames; |
7ab12479 JB |
1196 | int mini; |
1197 | { | |
1198 | register Lisp_Object w; | |
1199 | register Lisp_Object best_window; | |
1200 | register Lisp_Object next_window; | |
4b206065 | 1201 | register Lisp_Object last_window; |
44fa5b1e | 1202 | FRAME_PTR frame; |
89bca612 RS |
1203 | Lisp_Object frame_arg; |
1204 | frame_arg = Qt; | |
44fa5b1e | 1205 | |
4b206065 | 1206 | #ifdef MULTI_FRAME |
44fa5b1e JB |
1207 | /* If we're only looping through windows on a particular frame, |
1208 | frame points to that frame. If we're looping through windows | |
1209 | on all frames, frame is 0. */ | |
1210 | if (FRAMEP (frames)) | |
1211 | frame = XFRAME (frames); | |
1212 | else if (NILP (frames)) | |
1213 | frame = selected_frame; | |
7ab12479 | 1214 | else |
44fa5b1e | 1215 | frame = 0; |
89bca612 RS |
1216 | if (frame) |
1217 | frame_arg = Qlambda; | |
f812f9c6 RS |
1218 | else if (XFASTINT (frames) == 0) |
1219 | frame_arg = frames; | |
89bca612 RS |
1220 | else if (EQ (frames, Qvisible)) |
1221 | frame_arg = frames; | |
4b206065 JB |
1222 | #else |
1223 | frame = 0; | |
1224 | #endif | |
7ab12479 | 1225 | |
89bca612 RS |
1226 | /* frame_arg is Qlambda to stick to one frame, |
1227 | Qvisible to consider all visible frames, | |
1228 | or Qt otherwise. */ | |
1229 | ||
7ab12479 | 1230 | /* Pick a window to start with. */ |
017b2bad | 1231 | if (WINDOWP (obj)) |
4b206065 | 1232 | w = obj; |
44fa5b1e | 1233 | else if (frame) |
4b206065 | 1234 | w = FRAME_SELECTED_WINDOW (frame); |
7ab12479 | 1235 | else |
4b206065 JB |
1236 | w = FRAME_SELECTED_WINDOW (selected_frame); |
1237 | ||
1238 | /* Figure out the last window we're going to mess with. Since | |
1239 | Fnext_window, given the same options, is guaranteed to go in a | |
1240 | ring, we can just use Fprevious_window to find the last one. | |
1241 | ||
1242 | We can't just wait until we hit the first window again, because | |
1243 | it might be deleted. */ | |
1244 | ||
89bca612 | 1245 | last_window = Fprevious_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1246 | |
7ab12479 | 1247 | best_window = Qnil; |
4b206065 | 1248 | for (;;) |
7ab12479 | 1249 | { |
75d8f668 JB |
1250 | FRAME_PTR w_frame = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
1251 | ||
7ab12479 JB |
1252 | /* Pick the next window now, since some operations will delete |
1253 | the current window. */ | |
89bca612 | 1254 | next_window = Fnext_window (w, mini ? Qt : Qnil, frame_arg); |
7ab12479 | 1255 | |
d29a5631 RS |
1256 | /* Note that we do not pay attention here to whether |
1257 | the frame is visible, since Fnext_window skips non-visible frames | |
1258 | if that is desired, under the control of frame_arg. */ | |
75d8f668 | 1259 | if (! MINI_WINDOW_P (XWINDOW (w)) |
7ab12479 JB |
1260 | || (mini && minibuf_level > 0)) |
1261 | switch (type) | |
1262 | { | |
1263 | case GET_BUFFER_WINDOW: | |
7ab12479 JB |
1264 | if (XBUFFER (XWINDOW (w)->buffer) == XBUFFER (obj)) |
1265 | return w; | |
1266 | break; | |
1267 | ||
1268 | case GET_LRU_WINDOW: | |
1269 | /* t as arg means consider only full-width windows */ | |
e5d77022 | 1270 | if (!NILP (obj) && XFASTINT (XWINDOW (w)->width) |
a2db42d6 | 1271 | != FRAME_WIDTH (XFRAME (WINDOW_FRAME (XWINDOW (w))))) |
7ab12479 | 1272 | break; |
7ab12479 JB |
1273 | /* Ignore dedicated windows and minibuffers. */ |
1274 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1275 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 | 1276 | break; |
265a9e55 | 1277 | if (NILP (best_window) |
7ab12479 JB |
1278 | || (XFASTINT (XWINDOW (best_window)->use_time) |
1279 | > XFASTINT (XWINDOW (w)->use_time))) | |
1280 | best_window = w; | |
1281 | break; | |
1282 | ||
1283 | case DELETE_OTHER_WINDOWS: | |
1284 | if (XWINDOW (w) != XWINDOW (obj)) | |
1285 | Fdelete_window (w); | |
1286 | break; | |
1287 | ||
1288 | case DELETE_BUFFER_WINDOWS: | |
1289 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1290 | { | |
1291 | /* If we're deleting the buffer displayed in the only window | |
44fa5b1e | 1292 | on the frame, find a new buffer to display there. */ |
265a9e55 | 1293 | if (NILP (XWINDOW (w)->parent)) |
7ab12479 | 1294 | { |
12cae7c0 KH |
1295 | Lisp_Object new_buffer; |
1296 | new_buffer = Fother_buffer (obj, Qnil); | |
265a9e55 | 1297 | if (NILP (new_buffer)) |
7ab12479 JB |
1298 | new_buffer |
1299 | = Fget_buffer_create (build_string ("*scratch*")); | |
1300 | Fset_window_buffer (w, new_buffer); | |
d895abb0 RS |
1301 | if (EQ (w, selected_window)) |
1302 | Fset_buffer (XWINDOW (w)->buffer); | |
7ab12479 JB |
1303 | } |
1304 | else | |
1305 | Fdelete_window (w); | |
1306 | } | |
1307 | break; | |
1308 | ||
1309 | case GET_LARGEST_WINDOW: | |
7ab12479 JB |
1310 | /* Ignore dedicated windows and minibuffers. */ |
1311 | if (MINI_WINDOW_P (XWINDOW (w)) | |
265a9e55 | 1312 | || !NILP (XWINDOW (w)->dedicated)) |
7ab12479 JB |
1313 | break; |
1314 | { | |
1315 | struct window *best_window_ptr = XWINDOW (best_window); | |
1316 | struct window *w_ptr = XWINDOW (w); | |
6b54027b RS |
1317 | if (NILP (best_window) |
1318 | || (XFASTINT (w_ptr->height) * XFASTINT (w_ptr->width) | |
1319 | > (XFASTINT (best_window_ptr->height) | |
1320 | * XFASTINT (best_window_ptr->width)))) | |
7ab12479 JB |
1321 | best_window = w; |
1322 | } | |
1323 | break; | |
1324 | ||
1325 | case UNSHOW_BUFFER: | |
1326 | if (EQ (XWINDOW (w)->buffer, obj)) | |
1327 | { | |
1328 | /* Find another buffer to show in this window. */ | |
12cae7c0 | 1329 | Lisp_Object another_buffer; |
38ab08d1 | 1330 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (w))); |
12cae7c0 | 1331 | another_buffer = Fother_buffer (obj, Qnil); |
265a9e55 | 1332 | if (NILP (another_buffer)) |
7ab12479 JB |
1333 | another_buffer |
1334 | = Fget_buffer_create (build_string ("*scratch*")); | |
38ab08d1 RS |
1335 | #ifdef MULTI_FRAME |
1336 | /* If this window is dedicated, and in a frame of its own, | |
1337 | kill the frame. */ | |
1338 | if (EQ (w, FRAME_ROOT_WINDOW (f)) | |
596122a7 | 1339 | && !NILP (XWINDOW (w)->dedicated) |
38ab08d1 | 1340 | && other_visible_frames (f)) |
45945a7b RS |
1341 | { |
1342 | /* Skip the other windows on this frame. | |
1343 | There might be one, the minibuffer! */ | |
1344 | if (! EQ (w, last_window)) | |
1345 | while (f == XFRAME (WINDOW_FRAME (XWINDOW (next_window)))) | |
1346 | { | |
1347 | /* As we go, check for the end of the loop. | |
1348 | We mustn't start going around a second time. */ | |
1349 | if (EQ (next_window, last_window)) | |
1350 | { | |
1351 | last_window = w; | |
1352 | break; | |
1353 | } | |
1354 | next_window = Fnext_window (next_window, | |
1355 | mini ? Qt : Qnil, | |
1356 | frame_arg); | |
1357 | } | |
1358 | /* Now we can safely delete the frame. */ | |
1359 | Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil); | |
1360 | } | |
38ab08d1 RS |
1361 | else |
1362 | #endif | |
1363 | { | |
1364 | /* Otherwise show a different buffer in the window. */ | |
1365 | XWINDOW (w)->dedicated = Qnil; | |
1366 | Fset_window_buffer (w, another_buffer); | |
1367 | if (EQ (w, selected_window)) | |
1368 | Fset_buffer (XWINDOW (w)->buffer); | |
1369 | } | |
7ab12479 JB |
1370 | } |
1371 | break; | |
1372 | } | |
4b206065 JB |
1373 | |
1374 | if (EQ (w, last_window)) | |
1375 | break; | |
1376 | ||
7ab12479 JB |
1377 | w = next_window; |
1378 | } | |
7ab12479 JB |
1379 | |
1380 | return best_window; | |
1381 | } | |
605be8af | 1382 | |
7ab12479 JB |
1383 | DEFUN ("get-lru-window", Fget_lru_window, Sget_lru_window, 0, 1, 0, |
1384 | "Return the window least recently selected or used for display.\n\ | |
89bca612 | 1385 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1386 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1387 | If FRAME is t, search all frames.\n\ |
1388 | If FRAME is nil, search only the selected frame.\n\ | |
1389 | If FRAME is a frame, search only that frame.") | |
1390 | (frame) | |
1391 | Lisp_Object frame; | |
7ab12479 JB |
1392 | { |
1393 | register Lisp_Object w; | |
1394 | /* First try for a window that is full-width */ | |
89bca612 | 1395 | w = window_loop (GET_LRU_WINDOW, Qt, 0, frame); |
265a9e55 | 1396 | if (!NILP (w) && !EQ (w, selected_window)) |
7ab12479 JB |
1397 | return w; |
1398 | /* If none of them, try the rest */ | |
89bca612 | 1399 | return window_loop (GET_LRU_WINDOW, Qnil, 0, frame); |
7ab12479 JB |
1400 | } |
1401 | ||
1402 | DEFUN ("get-largest-window", Fget_largest_window, Sget_largest_window, 0, 1, 0, | |
1403 | "Return the largest window in area.\n\ | |
89bca612 | 1404 | If optional argument FRAME is `visible', search all visible frames.\n\ |
cee67da9 | 1405 | If FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 RS |
1406 | If FRAME is t, search all frames.\n\ |
1407 | If FRAME is nil, search only the selected frame.\n\ | |
1408 | If FRAME is a frame, search only that frame.") | |
44fa5b1e JB |
1409 | (frame) |
1410 | Lisp_Object frame; | |
7ab12479 JB |
1411 | { |
1412 | return window_loop (GET_LARGEST_WINDOW, Qnil, 0, | |
44fa5b1e | 1413 | frame); |
7ab12479 JB |
1414 | } |
1415 | ||
1416 | DEFUN ("get-buffer-window", Fget_buffer_window, Sget_buffer_window, 1, 2, 0, | |
1417 | "Return a window currently displaying BUFFER, or nil if none.\n\ | |
89bca612 | 1418 | If optional argument FRAME is `visible', search all visible frames.\n\ |
f812f9c6 | 1419 | If optional argument FRAME is 0, search all visible and iconified frames.\n\ |
89bca612 | 1420 | If FRAME is t, search all frames.\n\ |
1bc981d2 | 1421 | If FRAME is nil, search only the selected frame.\n\ |
89bca612 | 1422 | If FRAME is a frame, search only that frame.") |
44fa5b1e JB |
1423 | (buffer, frame) |
1424 | Lisp_Object buffer, frame; | |
7ab12479 JB |
1425 | { |
1426 | buffer = Fget_buffer (buffer); | |
017b2bad | 1427 | if (BUFFERP (buffer)) |
44fa5b1e | 1428 | return window_loop (GET_BUFFER_WINDOW, buffer, 1, frame); |
7ab12479 JB |
1429 | else |
1430 | return Qnil; | |
1431 | } | |
1432 | ||
1433 | DEFUN ("delete-other-windows", Fdelete_other_windows, Sdelete_other_windows, | |
1434 | 0, 1, "", | |
44fa5b1e | 1435 | "Make WINDOW (or the selected window) fill its frame.\n\ |
f16a1ed3 RS |
1436 | Only the frame WINDOW is on is affected.\n\ |
1437 | This function tries to reduce display jumps\n\ | |
1438 | by keeping the text previously visible in WINDOW\n\ | |
1439 | in the same place on the frame. Doing this depends on\n\ | |
1440 | the value of (window-start WINDOW), so if calling this function\n\ | |
1441 | in a program gives strange scrolling, make sure the window-start\n\ | |
1442 | value is reasonable when this function is called.") | |
7ab12479 JB |
1443 | (window) |
1444 | Lisp_Object window; | |
1445 | { | |
1446 | struct window *w; | |
00d3d838 | 1447 | int startpos; |
7ab12479 JB |
1448 | int top; |
1449 | ||
265a9e55 | 1450 | if (NILP (window)) |
7ab12479 JB |
1451 | window = selected_window; |
1452 | else | |
605be8af | 1453 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1454 | |
1455 | w = XWINDOW (window); | |
a2b38b3c | 1456 | |
00d3d838 KH |
1457 | startpos = marker_position (w->start); |
1458 | top = XFASTINT (w->top) - FRAME_MENU_BAR_LINES (XFRAME (WINDOW_FRAME (w))); | |
7ab12479 | 1459 | |
a2b38b3c RS |
1460 | if (MINI_WINDOW_P (w) && top > 0) |
1461 | error ("Can't expand minibuffer to full frame"); | |
1462 | ||
70728a80 | 1463 | window_loop (DELETE_OTHER_WINDOWS, window, 0, WINDOW_FRAME (w)); |
7ab12479 | 1464 | |
00d3d838 KH |
1465 | /* Try to minimize scrolling, by setting the window start to the point |
1466 | will cause the text at the old window start to be at the same place | |
1467 | on the frame. But don't try to do this if the window start is | |
1468 | outside the visible portion (as might happen when the display is | |
1469 | not current, due to typeahead). */ | |
1470 | if (startpos >= BUF_BEGV (XBUFFER (w->buffer)) | |
1471 | && startpos <= BUF_ZV (XBUFFER (w->buffer))) | |
1472 | { | |
1473 | struct position pos; | |
1474 | struct buffer *obuf = current_buffer; | |
1475 | ||
1476 | Fset_buffer (w->buffer); | |
1477 | /* This computation used to temporarily move point, but that can | |
1478 | have unwanted side effects due to text properties. */ | |
1479 | pos = *vmotion (startpos, -top, window_internal_width (w) - 1, | |
1480 | XINT (w->hscroll), window); | |
1481 | Fset_marker (w->start, make_number (pos.bufpos), w->buffer); | |
1482 | w->start_at_line_beg = ((pos.bufpos == BEGV | |
1483 | || FETCH_CHAR (pos.bufpos - 1) == '\n') ? Qt | |
1484 | : Qnil); | |
1485 | ||
1486 | set_buffer_internal (obuf); | |
1487 | } | |
7ab12479 JB |
1488 | return Qnil; |
1489 | } | |
1490 | ||
1491 | DEFUN ("delete-windows-on", Fdelete_windows_on, Sdelete_windows_on, | |
3cbbb729 | 1492 | 1, 2, "bDelete windows on (buffer): ", |
26f6279d JB |
1493 | "Delete all windows showing BUFFER.\n\ |
1494 | Optional second argument FRAME controls which frames are affected.\n\ | |
1495 | If nil or omitted, delete all windows showing BUFFER in any frame.\n\ | |
1496 | If t, delete only windows showing BUFFER in the selected frame.\n\ | |
89bca612 | 1497 | If `visible', delete all windows showing BUFFER in any visible frame.\n\ |
26f6279d JB |
1498 | If a frame, delete only windows showing BUFFER in that frame.") |
1499 | (buffer, frame) | |
1500 | Lisp_Object buffer, frame; | |
7ab12479 | 1501 | { |
26f6279d JB |
1502 | #ifdef MULTI_FRAME |
1503 | /* FRAME uses t and nil to mean the opposite of what window_loop | |
1504 | expects. */ | |
1505 | if (! FRAMEP (frame)) | |
1506 | frame = NILP (frame) ? Qt : Qnil; | |
1507 | #else | |
1508 | frame = Qt; | |
1509 | #endif | |
1510 | ||
265a9e55 | 1511 | if (!NILP (buffer)) |
7ab12479 JB |
1512 | { |
1513 | buffer = Fget_buffer (buffer); | |
1514 | CHECK_BUFFER (buffer, 0); | |
26f6279d | 1515 | window_loop (DELETE_BUFFER_WINDOWS, buffer, 0, frame); |
7ab12479 JB |
1516 | } |
1517 | return Qnil; | |
1518 | } | |
1519 | ||
1520 | DEFUN ("replace-buffer-in-windows", Freplace_buffer_in_windows, | |
1521 | Sreplace_buffer_in_windows, | |
1522 | 1, 1, "bReplace buffer in windows: ", | |
1523 | "Replace BUFFER with some other buffer in all windows showing it.") | |
1524 | (buffer) | |
1525 | Lisp_Object buffer; | |
1526 | { | |
265a9e55 | 1527 | if (!NILP (buffer)) |
7ab12479 JB |
1528 | { |
1529 | buffer = Fget_buffer (buffer); | |
1530 | CHECK_BUFFER (buffer, 0); | |
1531 | window_loop (UNSHOW_BUFFER, buffer, 0, Qt); | |
1532 | } | |
1533 | return Qnil; | |
1534 | } | |
1535 | \f | |
1536 | /* Set the height of WINDOW and all its inferiors. */ | |
a481b3ea JB |
1537 | |
1538 | /* The smallest acceptable dimensions for a window. Anything smaller | |
1539 | might crash Emacs. */ | |
1540 | #define MIN_SAFE_WINDOW_WIDTH (2) | |
1541 | #define MIN_SAFE_WINDOW_HEIGHT (2) | |
1542 | ||
1543 | /* Make sure that window_min_height and window_min_width are | |
1544 | not too small; if they are, set them to safe minima. */ | |
1545 | ||
1546 | static void | |
1547 | check_min_window_sizes () | |
1548 | { | |
1549 | /* Smaller values might permit a crash. */ | |
1550 | if (window_min_width < MIN_SAFE_WINDOW_WIDTH) | |
1551 | window_min_width = MIN_SAFE_WINDOW_WIDTH; | |
1552 | if (window_min_height < MIN_SAFE_WINDOW_HEIGHT) | |
1553 | window_min_height = MIN_SAFE_WINDOW_HEIGHT; | |
1554 | } | |
1555 | ||
1556 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the | |
1557 | minimum allowable size. */ | |
605be8af | 1558 | void |
a481b3ea | 1559 | check_frame_size (frame, rows, cols) |
605be8af JB |
1560 | FRAME_PTR frame; |
1561 | int *rows, *cols; | |
a481b3ea | 1562 | { |
628df3bf JB |
1563 | /* For height, we have to see: |
1564 | whether the frame has a minibuffer, | |
1565 | whether it wants a mode line, and | |
1566 | whether it has a menu bar. */ | |
a481b3ea | 1567 | int min_height = |
79f92720 JB |
1568 | (FRAME_MINIBUF_ONLY_P (frame) ? MIN_SAFE_WINDOW_HEIGHT - 1 |
1569 | : (! FRAME_HAS_MINIBUF_P (frame)) ? MIN_SAFE_WINDOW_HEIGHT | |
a481b3ea | 1570 | : 2 * MIN_SAFE_WINDOW_HEIGHT - 1); |
628df3bf JB |
1571 | if (FRAME_MENU_BAR_LINES (frame) > 0) |
1572 | min_height += FRAME_MENU_BAR_LINES (frame); | |
a481b3ea JB |
1573 | |
1574 | if (*rows < min_height) | |
1575 | *rows = min_height; | |
1576 | if (*cols < MIN_SAFE_WINDOW_WIDTH) | |
1577 | *cols = MIN_SAFE_WINDOW_WIDTH; | |
1578 | } | |
1579 | ||
7ab12479 JB |
1580 | /* Normally the window is deleted if it gets too small. |
1581 | nodelete nonzero means do not do this. | |
1582 | (The caller should check later and do so if appropriate) */ | |
1583 | ||
1584 | set_window_height (window, height, nodelete) | |
1585 | Lisp_Object window; | |
1586 | int height; | |
1587 | int nodelete; | |
1588 | { | |
1589 | register struct window *w = XWINDOW (window); | |
1590 | register struct window *c; | |
1591 | int oheight = XFASTINT (w->height); | |
1592 | int top, pos, lastbot, opos, lastobot; | |
1593 | Lisp_Object child; | |
1594 | ||
a481b3ea JB |
1595 | check_min_window_sizes (); |
1596 | ||
7ab12479 | 1597 | if (!nodelete |
265a9e55 | 1598 | && ! NILP (w->parent) |
7ab12479 JB |
1599 | && height < window_min_height) |
1600 | { | |
1601 | Fdelete_window (window); | |
1602 | return; | |
1603 | } | |
1604 | ||
d834a2e9 | 1605 | XSETFASTINT (w->last_modified, 0); |
7ab12479 | 1606 | windows_or_buffers_changed++; |
d834a2e9 | 1607 | XSETFASTINT (w->height, height); |
265a9e55 | 1608 | if (!NILP (w->hchild)) |
7ab12479 | 1609 | { |
265a9e55 | 1610 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1611 | { |
1612 | XWINDOW (child)->top = w->top; | |
1613 | set_window_height (child, height, nodelete); | |
1614 | } | |
1615 | } | |
265a9e55 | 1616 | else if (!NILP (w->vchild)) |
7ab12479 JB |
1617 | { |
1618 | lastbot = top = XFASTINT (w->top); | |
1619 | lastobot = 0; | |
265a9e55 | 1620 | for (child = w->vchild; !NILP (child); child = c->next) |
7ab12479 JB |
1621 | { |
1622 | c = XWINDOW (child); | |
1623 | ||
1624 | opos = lastobot + XFASTINT (c->height); | |
1625 | ||
d834a2e9 | 1626 | XSETFASTINT (c->top, lastbot); |
7ab12479 JB |
1627 | |
1628 | pos = (((opos * height) << 1) + oheight) / (oheight << 1); | |
1629 | ||
1630 | /* Avoid confusion: inhibit deletion of child if becomes too small */ | |
1631 | set_window_height (child, pos + top - lastbot, 1); | |
1632 | ||
1633 | /* Now advance child to next window, | |
1634 | and set lastbot if child was not just deleted. */ | |
1635 | lastbot = pos + top; | |
1636 | lastobot = opos; | |
1637 | } | |
1638 | /* Now delete any children that became too small. */ | |
1639 | if (!nodelete) | |
265a9e55 | 1640 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1641 | { |
1642 | set_window_height (child, XINT (XWINDOW (child)->height), 0); | |
1643 | } | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | /* Recursively set width of WINDOW and its inferiors. */ | |
1648 | ||
1649 | set_window_width (window, width, nodelete) | |
1650 | Lisp_Object window; | |
1651 | int width; | |
1652 | int nodelete; | |
1653 | { | |
1654 | register struct window *w = XWINDOW (window); | |
1655 | register struct window *c; | |
1656 | int owidth = XFASTINT (w->width); | |
1657 | int left, pos, lastright, opos, lastoright; | |
1658 | Lisp_Object child; | |
1659 | ||
abdced83 | 1660 | if (!nodelete && width < window_min_width && !NILP (w->parent)) |
7ab12479 JB |
1661 | { |
1662 | Fdelete_window (window); | |
1663 | return; | |
1664 | } | |
1665 | ||
d834a2e9 | 1666 | XSETFASTINT (w->last_modified, 0); |
7ab12479 | 1667 | windows_or_buffers_changed++; |
d834a2e9 | 1668 | XSETFASTINT (w->width, width); |
265a9e55 | 1669 | if (!NILP (w->vchild)) |
7ab12479 | 1670 | { |
265a9e55 | 1671 | for (child = w->vchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1672 | { |
1673 | XWINDOW (child)->left = w->left; | |
1674 | set_window_width (child, width, nodelete); | |
1675 | } | |
1676 | } | |
265a9e55 | 1677 | else if (!NILP (w->hchild)) |
7ab12479 JB |
1678 | { |
1679 | lastright = left = XFASTINT (w->left); | |
1680 | lastoright = 0; | |
265a9e55 | 1681 | for (child = w->hchild; !NILP (child); child = c->next) |
7ab12479 JB |
1682 | { |
1683 | c = XWINDOW (child); | |
1684 | ||
1685 | opos = lastoright + XFASTINT (c->width); | |
1686 | ||
d834a2e9 | 1687 | XSETFASTINT (c->left, lastright); |
7ab12479 JB |
1688 | |
1689 | pos = (((opos * width) << 1) + owidth) / (owidth << 1); | |
1690 | ||
1691 | /* Inhibit deletion for becoming too small */ | |
1692 | set_window_width (child, pos + left - lastright, 1); | |
1693 | ||
1694 | /* Now advance child to next window, | |
1695 | and set lastright if child was not just deleted. */ | |
1696 | lastright = pos + left, lastoright = opos; | |
1697 | } | |
1698 | /* Delete children that became too small */ | |
1699 | if (!nodelete) | |
265a9e55 | 1700 | for (child = w->hchild; !NILP (child); child = XWINDOW (child)->next) |
7ab12479 JB |
1701 | { |
1702 | set_window_width (child, XINT (XWINDOW (child)->width), 0); | |
1703 | } | |
1704 | } | |
1705 | } | |
1706 | \f | |
1d8d96fa | 1707 | int window_select_count; |
7ab12479 JB |
1708 | |
1709 | DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 2, 0, | |
1710 | "Make WINDOW display BUFFER as its contents.\n\ | |
1711 | BUFFER can be a buffer or buffer name.") | |
1712 | (window, buffer) | |
1713 | register Lisp_Object window, buffer; | |
1714 | { | |
1715 | register Lisp_Object tem; | |
1716 | register struct window *w = decode_window (window); | |
1717 | ||
1718 | buffer = Fget_buffer (buffer); | |
1719 | CHECK_BUFFER (buffer, 1); | |
1720 | ||
265a9e55 | 1721 | if (NILP (XBUFFER (buffer)->name)) |
7ab12479 JB |
1722 | error ("Attempt to display deleted buffer"); |
1723 | ||
1724 | tem = w->buffer; | |
265a9e55 | 1725 | if (NILP (tem)) |
7ab12479 JB |
1726 | error ("Window is deleted"); |
1727 | else if (! EQ (tem, Qt)) /* w->buffer is t when the window | |
1728 | is first being set up. */ | |
1729 | { | |
265a9e55 | 1730 | if (!NILP (w->dedicated) && !EQ (tem, buffer)) |
3cf85532 RS |
1731 | error ("Window is dedicated to `%s'", |
1732 | XSTRING (XBUFFER (tem)->name)->data); | |
7ab12479 JB |
1733 | |
1734 | unshow_buffer (w); | |
1735 | } | |
1736 | ||
1737 | w->buffer = buffer; | |
d834a2e9 | 1738 | XSETFASTINT (w->window_end_pos, 0); |
5a41ab94 | 1739 | w->window_end_valid = Qnil; |
d834a2e9 | 1740 | XSETFASTINT(w->hscroll, 0); |
7ab12479 JB |
1741 | Fset_marker (w->pointm, |
1742 | make_number (BUF_PT (XBUFFER (buffer))), | |
1743 | buffer); | |
1744 | set_marker_restricted (w->start, | |
1745 | make_number (XBUFFER (buffer)->last_window_start), | |
1746 | buffer); | |
1747 | w->start_at_line_beg = Qnil; | |
e36ab06b | 1748 | w->force_start = Qnil; |
d834a2e9 | 1749 | XSETFASTINT (w->last_modified, 0); |
7ab12479 JB |
1750 | windows_or_buffers_changed++; |
1751 | if (EQ (window, selected_window)) | |
1752 | Fset_buffer (buffer); | |
1753 | ||
1754 | return Qnil; | |
1755 | } | |
1756 | ||
1757 | DEFUN ("select-window", Fselect_window, Sselect_window, 1, 1, 0, | |
1758 | "Select WINDOW. Most editing will apply to WINDOW's buffer.\n\ | |
1759 | The main editor command loop selects the buffer of the selected window\n\ | |
1760 | before each command.") | |
1761 | (window) | |
1762 | register Lisp_Object window; | |
1763 | { | |
1764 | register struct window *w; | |
1765 | register struct window *ow = XWINDOW (selected_window); | |
1766 | ||
605be8af | 1767 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
1768 | |
1769 | w = XWINDOW (window); | |
1770 | ||
265a9e55 | 1771 | if (NILP (w->buffer)) |
7ab12479 JB |
1772 | error ("Trying to select deleted window or non-leaf window"); |
1773 | ||
d834a2e9 | 1774 | XSETFASTINT (w->use_time, ++window_select_count); |
7ab12479 JB |
1775 | if (EQ (window, selected_window)) |
1776 | return window; | |
1777 | ||
1778 | Fset_marker (ow->pointm, make_number (BUF_PT (XBUFFER (ow->buffer))), | |
1779 | ow->buffer); | |
1780 | ||
1781 | selected_window = window; | |
44fa5b1e JB |
1782 | #ifdef MULTI_FRAME |
1783 | if (XFRAME (WINDOW_FRAME (w)) != selected_frame) | |
7ab12479 | 1784 | { |
44fa5b1e | 1785 | XFRAME (WINDOW_FRAME (w))->selected_window = window; |
147a6615 RS |
1786 | /* Use this rather than Fhandle_switch_frame |
1787 | so that FRAME_FOCUS_FRAME is moved appropriately as we | |
1788 | move around in the state where a minibuffer in a separate | |
1789 | frame is active. */ | |
1790 | Fselect_frame (WINDOW_FRAME (w), Qnil); | |
7ab12479 JB |
1791 | } |
1792 | else | |
44fa5b1e | 1793 | selected_frame->selected_window = window; |
7ab12479 JB |
1794 | #endif |
1795 | ||
1796 | record_buffer (w->buffer); | |
1797 | Fset_buffer (w->buffer); | |
1798 | ||
1799 | /* Go to the point recorded in the window. | |
1800 | This is important when the buffer is in more | |
1801 | than one window. It also matters when | |
1802 | redisplay_window has altered point after scrolling, | |
1803 | because it makes the change only in the window. */ | |
1804 | { | |
1805 | register int new_point = marker_position (w->pointm); | |
1806 | if (new_point < BEGV) | |
1807 | SET_PT (BEGV); | |
a9c95e08 | 1808 | else if (new_point > ZV) |
7ab12479 JB |
1809 | SET_PT (ZV); |
1810 | else | |
1811 | SET_PT (new_point); | |
1812 | } | |
1813 | ||
1814 | windows_or_buffers_changed++; | |
1815 | return window; | |
1816 | } | |
1817 | ||
35aaf00c | 1818 | DEFUN ("display-buffer", Fdisplay_buffer, Sdisplay_buffer, 1, 2, |
6648f23a | 1819 | "BDisplay buffer: \nP", |
7ab12479 JB |
1820 | "Make BUFFER appear in some window but don't select it.\n\ |
1821 | BUFFER can be a buffer or a buffer name.\n\ | |
1822 | If BUFFER is shown already in some window, just use that one,\n\ | |
1823 | unless the window is the selected window and the optional second\n\ | |
46d3268a | 1824 | argument NOT-THIS-WINDOW is non-nil (interactively, with prefix arg).\n\ |
5141b901 | 1825 | If `pop-up-frames' is non-nil, make a new frame if no window shows BUFFER.\n\ |
7ab12479 JB |
1826 | Returns the window displaying BUFFER.") |
1827 | (buffer, not_this_window) | |
1828 | register Lisp_Object buffer, not_this_window; | |
1829 | { | |
a90712c2 | 1830 | register Lisp_Object window, tem; |
7ab12479 JB |
1831 | |
1832 | buffer = Fget_buffer (buffer); | |
1833 | CHECK_BUFFER (buffer, 0); | |
1834 | ||
265a9e55 | 1835 | if (!NILP (Vdisplay_buffer_function)) |
7ab12479 JB |
1836 | return call2 (Vdisplay_buffer_function, buffer, not_this_window); |
1837 | ||
265a9e55 | 1838 | if (NILP (not_this_window) |
7ab12479 JB |
1839 | && XBUFFER (XWINDOW (selected_window)->buffer) == XBUFFER (buffer)) |
1840 | return selected_window; | |
1841 | ||
c6e73093 | 1842 | #ifdef MULTI_FRAME |
e8edb3ae | 1843 | /* If pop_up_frames, |
f812f9c6 RS |
1844 | look for a window showing BUFFER on any visible or iconified frame. */ |
1845 | window = Fget_buffer_window (buffer, pop_up_frames ? make_number (0) : Qnil); | |
c6e73093 KH |
1846 | #else |
1847 | window = Fget_buffer_window (buffer, Qnil); | |
1848 | #endif | |
265a9e55 JB |
1849 | if (!NILP (window) |
1850 | && (NILP (not_this_window) || !EQ (window, selected_window))) | |
f812f9c6 | 1851 | { |
7cab5d2c | 1852 | #ifdef MULTI_FRAME |
f812f9c6 RS |
1853 | if (FRAME_ICONIFIED_P (XFRAME (WINDOW_FRAME (XWINDOW (window))))) |
1854 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
7cab5d2c | 1855 | #endif |
f812f9c6 RS |
1856 | return window; |
1857 | } | |
7ab12479 | 1858 | |
a90712c2 RS |
1859 | /* Certain buffer names get special handling. */ |
1860 | if (! NILP (Vspecial_display_function)) | |
1861 | { | |
1862 | tem = Fmember (XBUFFER (buffer)->name, Vspecial_display_buffer_names); | |
1863 | if (!NILP (tem)) | |
1864 | return call1 (Vspecial_display_function, buffer); | |
1865 | ||
0a952b57 RS |
1866 | tem = Fassoc (XBUFFER (buffer)->name, Vspecial_display_buffer_names); |
1867 | if (!NILP (tem)) | |
1868 | return call2 (Vspecial_display_function, buffer, XCONS (tem)->cdr); | |
1869 | ||
a90712c2 | 1870 | for (tem = Vspecial_display_regexps; CONSP (tem); tem = XCONS (tem)->cdr) |
0a952b57 RS |
1871 | { |
1872 | Lisp_Object car = XCONS (tem)->car; | |
1873 | if (STRINGP (car) | |
1874 | && fast_string_match (car, XBUFFER (buffer)->name) >= 0) | |
1875 | return call1 (Vspecial_display_function, buffer); | |
1876 | else if (CONSP (car) | |
1877 | && STRINGP (XCONS (car)->car) | |
1878 | && fast_string_match (XCONS (car)->car, | |
1879 | XBUFFER (buffer)->name) >= 0) | |
1880 | return call2 (Vspecial_display_function, | |
1881 | buffer, | |
1882 | XCONS (car)->cdr); | |
1883 | } | |
a90712c2 RS |
1884 | } |
1885 | ||
44fa5b1e JB |
1886 | #ifdef MULTI_FRAME |
1887 | /* If there are no frames open that have more than a minibuffer, | |
1888 | we need to create a new frame. */ | |
1889 | if (pop_up_frames || last_nonminibuf_frame == 0) | |
7ab12479 | 1890 | { |
a90712c2 | 1891 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); |
7ab12479 | 1892 | Fset_window_buffer (window, buffer); |
7ab12479 JB |
1893 | return window; |
1894 | } | |
44fa5b1e | 1895 | #endif /* MULTI_FRAME */ |
7ab12479 | 1896 | |
43bad991 | 1897 | if (pop_up_windows |
44fa5b1e JB |
1898 | #ifdef MULTI_FRAME |
1899 | || FRAME_MINIBUF_ONLY_P (selected_frame) | |
cee67da9 RS |
1900 | /* If the current frame is a special display frame, |
1901 | don't try to reuse its windows. */ | |
1902 | || !NILP (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->dedicated) | |
43bad991 JB |
1903 | #endif |
1904 | ) | |
7ab12479 | 1905 | { |
12cae7c0 KH |
1906 | Lisp_Object frames; |
1907 | ||
1908 | frames = Qnil; | |
44fa5b1e JB |
1909 | #ifdef MULTI_FRAME |
1910 | if (FRAME_MINIBUF_ONLY_P (selected_frame)) | |
74112613 | 1911 | XSETFRAME (frames, last_nonminibuf_frame); |
7ab12479 JB |
1912 | #endif |
1913 | /* Don't try to create a window if would get an error */ | |
1914 | if (split_height_threshold < window_min_height << 1) | |
1915 | split_height_threshold = window_min_height << 1; | |
1916 | ||
cee67da9 RS |
1917 | /* Note that both Fget_largest_window and Fget_lru_window |
1918 | ignore minibuffers and dedicated windows. | |
1919 | This means they can return nil. */ | |
7ab12479 | 1920 | |
9f7a8b5d | 1921 | #ifdef MULTI_FRAME |
cee67da9 RS |
1922 | /* If the frame we would try to split cannot be split, |
1923 | try other frames. */ | |
1924 | if (FRAME_NO_SPLIT_P (NILP (frames) ? selected_frame | |
1925 | : last_nonminibuf_frame)) | |
1926 | { | |
1927 | /* Try visible frames first. */ | |
1928 | window = Fget_largest_window (Qvisible); | |
1929 | /* If that didn't work, try iconified frames. */ | |
1930 | if (NILP (window)) | |
1931 | window = Fget_largest_window (make_number (0)); | |
1932 | if (NILP (window)) | |
1933 | window = Fget_largest_window (Qt); | |
1934 | } | |
1935 | else | |
9f7a8b5d | 1936 | #endif |
cee67da9 RS |
1937 | window = Fget_largest_window (frames); |
1938 | ||
92cca945 RS |
1939 | /* If we got a tall enough full-width window that can be split, |
1940 | split it. */ | |
265a9e55 | 1941 | if (!NILP (window) |
92cca945 | 1942 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
7ab12479 | 1943 | && window_height (window) >= split_height_threshold |
535e0b8e JB |
1944 | && (XFASTINT (XWINDOW (window)->width) |
1945 | == FRAME_WIDTH (XFRAME (WINDOW_FRAME (XWINDOW (window)))))) | |
7ab12479 JB |
1946 | window = Fsplit_window (window, Qnil, Qnil); |
1947 | else | |
1948 | { | |
44fa5b1e | 1949 | window = Fget_lru_window (frames); |
92cca945 RS |
1950 | /* If the LRU window is selected, and big enough, |
1951 | and can be split, split it. */ | |
cee67da9 | 1952 | if (!NILP (window) |
92cca945 | 1953 | && ! FRAME_NO_SPLIT_P (XFRAME (XWINDOW (window)->frame)) |
cee67da9 RS |
1954 | && (EQ (window, selected_window) |
1955 | || EQ (XWINDOW (window)->parent, Qnil)) | |
7ab12479 JB |
1956 | && window_height (window) >= window_min_height << 1) |
1957 | window = Fsplit_window (window, Qnil, Qnil); | |
cee67da9 RS |
1958 | #ifdef MULTI_FRAME |
1959 | /* If Fget_lru_window returned nil, try other approaches. */ | |
1960 | /* Try visible frames first. */ | |
1961 | if (NILP (window)) | |
1962 | window = Fget_largest_window (Qvisible); | |
1963 | /* If that didn't work, try iconified frames. */ | |
1964 | if (NILP (window)) | |
1965 | window = Fget_largest_window (make_number (0)); | |
1966 | /* Try invisible frames. */ | |
1967 | if (NILP (window)) | |
1968 | window = Fget_largest_window (Qt); | |
1969 | /* As a last resort, make a new frame. */ | |
1970 | if (NILP (window)) | |
1971 | window = Fframe_selected_window (call0 (Vpop_up_frame_function)); | |
1972 | #else | |
1973 | /* As a last resort, use a non minibuffer window. */ | |
1974 | if (NILP (window)) | |
1975 | window = Fframe_first_window (Fselected_frame ()); | |
1976 | #endif | |
7ab12479 JB |
1977 | } |
1978 | } | |
1979 | else | |
1980 | window = Fget_lru_window (Qnil); | |
1981 | ||
1982 | Fset_window_buffer (window, buffer); | |
1983 | return window; | |
1984 | } | |
1985 | ||
1986 | void | |
1987 | temp_output_buffer_show (buf) | |
1988 | register Lisp_Object buf; | |
1989 | { | |
1990 | register struct buffer *old = current_buffer; | |
1991 | register Lisp_Object window; | |
1992 | register struct window *w; | |
1993 | ||
1994 | Fset_buffer (buf); | |
1995 | XBUFFER (buf)->save_modified = MODIFF; | |
1996 | BEGV = BEG; | |
1997 | ZV = Z; | |
1998 | SET_PT (BEG); | |
1999 | clip_changed = 1; | |
2000 | set_buffer_internal (old); | |
2001 | ||
2002 | if (!EQ (Vtemp_buffer_show_function, Qnil)) | |
2003 | call1 (Vtemp_buffer_show_function, buf); | |
2004 | else | |
2005 | { | |
2006 | window = Fdisplay_buffer (buf, Qnil); | |
2007 | ||
44fa5b1e JB |
2008 | #ifdef MULTI_FRAME |
2009 | if (XFRAME (XWINDOW (window)->frame) != selected_frame) | |
2010 | Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window))); | |
2011 | #endif /* MULTI_FRAME */ | |
7ab12479 JB |
2012 | Vminibuf_scroll_window = window; |
2013 | w = XWINDOW (window); | |
d834a2e9 | 2014 | XSETFASTINT (w->hscroll, 0); |
7ab12479 JB |
2015 | set_marker_restricted (w->start, make_number (1), buf); |
2016 | set_marker_restricted (w->pointm, make_number (1), buf); | |
2017 | } | |
2018 | } | |
2019 | \f | |
2020 | static | |
2021 | make_dummy_parent (window) | |
2022 | Lisp_Object window; | |
2023 | { | |
2024 | register Lisp_Object old, new; | |
2025 | register struct window *o, *p; | |
2026 | ||
2027 | old = window; | |
2028 | XSETTYPE (old, Lisp_Vector); | |
2029 | new = Fcopy_sequence (old); | |
2030 | XSETTYPE (new, Lisp_Window); | |
2031 | ||
2032 | o = XWINDOW (old); | |
2033 | p = XWINDOW (new); | |
d834a2e9 | 2034 | XSETFASTINT (p->sequence_number, ++sequence_number); |
7ab12479 JB |
2035 | |
2036 | /* Put new into window structure in place of window */ | |
2037 | replace_window (window, new); | |
2038 | ||
2039 | o->next = Qnil; | |
2040 | o->prev = Qnil; | |
2041 | o->vchild = Qnil; | |
2042 | o->hchild = Qnil; | |
2043 | o->parent = new; | |
2044 | ||
2045 | p->start = Qnil; | |
2046 | p->pointm = Qnil; | |
2047 | p->buffer = Qnil; | |
2048 | } | |
2049 | ||
2050 | DEFUN ("split-window", Fsplit_window, Ssplit_window, 0, 3, "", | |
2051 | "Split WINDOW, putting SIZE lines in the first of the pair.\n\ | |
2052 | WINDOW defaults to selected one and SIZE to half its size.\n\ | |
2053 | If optional third arg HOR-FLAG is non-nil, split side by side\n\ | |
2054 | and put SIZE columns in the first of the pair.") | |
2055 | (window, chsize, horflag) | |
2056 | Lisp_Object window, chsize, horflag; | |
2057 | { | |
2058 | register Lisp_Object new; | |
2059 | register struct window *o, *p; | |
2060 | register int size; | |
2061 | ||
265a9e55 | 2062 | if (NILP (window)) |
7ab12479 JB |
2063 | window = selected_window; |
2064 | else | |
605be8af | 2065 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2066 | |
2067 | o = XWINDOW (window); | |
2068 | ||
265a9e55 | 2069 | if (NILP (chsize)) |
7ab12479 | 2070 | { |
265a9e55 | 2071 | if (!NILP (horflag)) |
7ab12479 JB |
2072 | /* Round odd size up, since this is for the left-hand window, |
2073 | and it will lose a column for the separators. */ | |
2074 | size = ((XFASTINT (o->width) + 1) & -2) >> 1; | |
2075 | else | |
2076 | size = XFASTINT (o->height) >> 1; | |
2077 | } | |
2078 | else | |
2079 | { | |
2080 | CHECK_NUMBER (chsize, 1); | |
2081 | size = XINT (chsize); | |
2082 | } | |
2083 | ||
2084 | if (MINI_WINDOW_P (o)) | |
2085 | error ("Attempt to split minibuffer window"); | |
44fa5b1e JB |
2086 | else if (FRAME_NO_SPLIT_P (XFRAME (WINDOW_FRAME (o)))) |
2087 | error ("Attempt to split unsplittable frame"); | |
7ab12479 | 2088 | |
a481b3ea | 2089 | check_min_window_sizes (); |
7ab12479 | 2090 | |
265a9e55 | 2091 | if (NILP (horflag)) |
7ab12479 JB |
2092 | { |
2093 | if (size < window_min_height | |
2094 | || size + window_min_height > XFASTINT (o->height)) | |
2095 | args_out_of_range_3 (window, chsize, horflag); | |
265a9e55 JB |
2096 | if (NILP (o->parent) |
2097 | || NILP (XWINDOW (o->parent)->vchild)) | |
7ab12479 JB |
2098 | { |
2099 | make_dummy_parent (window); | |
2100 | new = o->parent; | |
2101 | XWINDOW (new)->vchild = window; | |
2102 | } | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | if (size < window_min_width | |
2107 | || size + window_min_width > XFASTINT (o->width)) | |
2108 | args_out_of_range_3 (window, chsize, horflag); | |
265a9e55 JB |
2109 | if (NILP (o->parent) |
2110 | || NILP (XWINDOW (o->parent)->hchild)) | |
7ab12479 JB |
2111 | { |
2112 | make_dummy_parent (window); | |
2113 | new = o->parent; | |
2114 | XWINDOW (new)->hchild = window; | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* Now we know that window's parent is a vertical combination | |
2119 | if we are dividing vertically, or a horizontal combination | |
2120 | if we are making side-by-side windows */ | |
2121 | ||
2122 | windows_or_buffers_changed++; | |
2123 | new = make_window (); | |
2124 | p = XWINDOW (new); | |
2125 | ||
44fa5b1e | 2126 | p->frame = o->frame; |
7ab12479 | 2127 | p->next = o->next; |
265a9e55 | 2128 | if (!NILP (p->next)) |
7ab12479 JB |
2129 | XWINDOW (p->next)->prev = new; |
2130 | p->prev = window; | |
2131 | o->next = new; | |
2132 | p->parent = o->parent; | |
2133 | p->buffer = Qt; | |
2134 | ||
2135 | Fset_window_buffer (new, o->buffer); | |
2136 | ||
44fa5b1e | 2137 | /* Apportion the available frame space among the two new windows */ |
7ab12479 | 2138 | |
265a9e55 | 2139 | if (!NILP (horflag)) |
7ab12479 JB |
2140 | { |
2141 | p->height = o->height; | |
2142 | p->top = o->top; | |
d834a2e9 KH |
2143 | XSETFASTINT (p->width, XFASTINT (o->width) - size); |
2144 | XSETFASTINT (o->width, size); | |
2145 | XSETFASTINT (p->left, XFASTINT (o->left) + size); | |
7ab12479 JB |
2146 | } |
2147 | else | |
2148 | { | |
2149 | p->left = o->left; | |
2150 | p->width = o->width; | |
d834a2e9 KH |
2151 | XSETFASTINT (p->height, XFASTINT (o->height) - size); |
2152 | XSETFASTINT (o->height, size); | |
2153 | XSETFASTINT (p->top, XFASTINT (o->top) + size); | |
7ab12479 JB |
2154 | } |
2155 | ||
2156 | return new; | |
2157 | } | |
2158 | \f | |
2159 | DEFUN ("enlarge-window", Fenlarge_window, Senlarge_window, 1, 2, "p", | |
2160 | "Make current window ARG lines bigger.\n\ | |
2161 | From program, optional second arg non-nil means grow sideways ARG columns.") | |
2162 | (n, side) | |
2163 | register Lisp_Object n, side; | |
2164 | { | |
2165 | CHECK_NUMBER (n, 0); | |
265a9e55 | 2166 | change_window_height (XINT (n), !NILP (side)); |
7ab12479 JB |
2167 | return Qnil; |
2168 | } | |
2169 | ||
2170 | DEFUN ("shrink-window", Fshrink_window, Sshrink_window, 1, 2, "p", | |
2171 | "Make current window ARG lines smaller.\n\ | |
2172 | From program, optional second arg non-nil means shrink sideways ARG columns.") | |
2173 | (n, side) | |
2174 | register Lisp_Object n, side; | |
2175 | { | |
2176 | CHECK_NUMBER (n, 0); | |
265a9e55 | 2177 | change_window_height (-XINT (n), !NILP (side)); |
7ab12479 JB |
2178 | return Qnil; |
2179 | } | |
2180 | ||
2181 | int | |
2182 | window_height (window) | |
2183 | Lisp_Object window; | |
2184 | { | |
2185 | register struct window *p = XWINDOW (window); | |
2186 | return XFASTINT (p->height); | |
2187 | } | |
2188 | ||
2189 | int | |
2190 | window_width (window) | |
2191 | Lisp_Object window; | |
2192 | { | |
2193 | register struct window *p = XWINDOW (window); | |
2194 | return XFASTINT (p->width); | |
2195 | } | |
2196 | ||
05c2896a JB |
2197 | #define MINSIZE(w) \ |
2198 | (widthflag \ | |
2199 | ? window_min_width \ | |
2200 | : (MINI_WINDOW_P (XWINDOW (w)) ? 1 : window_min_height)) | |
7ab12479 JB |
2201 | |
2202 | #define CURBEG(w) \ | |
05c2896a | 2203 | *(widthflag ? (int *) &(XWINDOW (w)->left) : (int *) &(XWINDOW (w)->top)) |
7ab12479 JB |
2204 | |
2205 | #define CURSIZE(w) \ | |
05c2896a | 2206 | *(widthflag ? (int *) &(XWINDOW (w)->width) : (int *) &(XWINDOW (w)->height)) |
7ab12479 JB |
2207 | |
2208 | /* Unlike set_window_height, this function | |
2209 | also changes the heights of the siblings so as to | |
2210 | keep everything consistent. */ | |
2211 | ||
2212 | change_window_height (delta, widthflag) | |
2213 | register int delta; | |
2214 | int widthflag; | |
2215 | { | |
2216 | register Lisp_Object parent; | |
2217 | Lisp_Object window; | |
2218 | register struct window *p; | |
2219 | int *sizep; | |
2220 | int (*sizefun) () = widthflag ? window_width : window_height; | |
2221 | register int (*setsizefun) () = (widthflag | |
2222 | ? set_window_width | |
2223 | : set_window_height); | |
2224 | ||
a481b3ea | 2225 | check_min_window_sizes (); |
7ab12479 JB |
2226 | |
2227 | window = selected_window; | |
2228 | while (1) | |
2229 | { | |
2230 | p = XWINDOW (window); | |
2231 | parent = p->parent; | |
265a9e55 | 2232 | if (NILP (parent)) |
7ab12479 JB |
2233 | { |
2234 | if (widthflag) | |
2235 | error ("No other window to side of this one"); | |
2236 | break; | |
2237 | } | |
265a9e55 JB |
2238 | if (widthflag ? !NILP (XWINDOW (parent)->hchild) |
2239 | : !NILP (XWINDOW (parent)->vchild)) | |
7ab12479 JB |
2240 | break; |
2241 | window = parent; | |
2242 | } | |
2243 | ||
05c2896a | 2244 | sizep = &CURSIZE (window); |
7ab12479 | 2245 | |
7ab12479 JB |
2246 | { |
2247 | register int maxdelta; | |
7ab12479 | 2248 | |
265a9e55 JB |
2249 | maxdelta = (!NILP (parent) ? (*sizefun) (parent) - *sizep |
2250 | : !NILP (p->next) ? (*sizefun) (p->next) - MINSIZE (p->next) | |
2251 | : !NILP (p->prev) ? (*sizefun) (p->prev) - MINSIZE (p->prev) | |
44fa5b1e JB |
2252 | /* This is a frame with only one window, a minibuffer-only |
2253 | or a minibufferless frame. */ | |
d5783c40 | 2254 | : (delta = 0)); |
7ab12479 JB |
2255 | |
2256 | if (delta > maxdelta) | |
2257 | /* This case traps trying to make the minibuffer | |
44fa5b1e JB |
2258 | the full frame, or make the only window aside from the |
2259 | minibuffer the full frame. */ | |
7ab12479 | 2260 | delta = maxdelta; |
6b54027b | 2261 | } |
d5783c40 | 2262 | |
6b54027b RS |
2263 | if (*sizep + delta < MINSIZE (window)) |
2264 | { | |
2265 | Fdelete_window (window); | |
d5783c40 | 2266 | return; |
6b54027b RS |
2267 | } |
2268 | ||
2269 | if (delta == 0) | |
2270 | return; | |
7ab12479 | 2271 | |
6b54027b RS |
2272 | if (!NILP (p->next) |
2273 | && (*sizefun) (p->next) - delta >= MINSIZE (p->next)) | |
7ab12479 JB |
2274 | { |
2275 | (*setsizefun) (p->next, (*sizefun) (p->next) - delta, 0); | |
2276 | (*setsizefun) (window, *sizep + delta, 0); | |
05c2896a | 2277 | CURBEG (p->next) += delta; |
7ab12479 JB |
2278 | /* This does not change size of p->next, |
2279 | but it propagates the new top edge to its children */ | |
2280 | (*setsizefun) (p->next, (*sizefun) (p->next), 0); | |
2281 | } | |
6b54027b RS |
2282 | else if (!NILP (p->prev) |
2283 | && (*sizefun) (p->prev) - delta >= MINSIZE (p->prev)) | |
7ab12479 JB |
2284 | { |
2285 | (*setsizefun) (p->prev, (*sizefun) (p->prev) - delta, 0); | |
05c2896a | 2286 | CURBEG (window) -= delta; |
7ab12479 JB |
2287 | (*setsizefun) (window, *sizep + delta, 0); |
2288 | } | |
2289 | else | |
2290 | { | |
2291 | register int delta1; | |
2292 | register int opht = (*sizefun) (parent); | |
2293 | ||
2294 | /* If trying to grow this window to or beyond size of the parent, | |
2295 | make delta1 so big that, on shrinking back down, | |
2296 | all the siblings end up with less than one line and are deleted. */ | |
2297 | if (opht <= *sizep + delta) | |
2298 | delta1 = opht * opht * 2; | |
2299 | /* Otherwise, make delta1 just right so that if we add delta1 | |
2300 | lines to this window and to the parent, and then shrink | |
2301 | the parent back to its original size, the new proportional | |
2302 | size of this window will increase by delta. */ | |
2303 | else | |
2304 | delta1 = (delta * opht * 100) / ((opht - *sizep - delta) * 100); | |
2305 | ||
2306 | /* Add delta1 lines or columns to this window, and to the parent, | |
2307 | keeping things consistent while not affecting siblings. */ | |
05c2896a | 2308 | CURSIZE (parent) = opht + delta1; |
7ab12479 JB |
2309 | (*setsizefun) (window, *sizep + delta1, 0); |
2310 | ||
2311 | /* Squeeze out delta1 lines or columns from our parent, | |
2312 | shriking this window and siblings proportionately. | |
2313 | This brings parent back to correct size. | |
2314 | Delta1 was calculated so this makes this window the desired size, | |
2315 | taking it all out of the siblings. */ | |
2316 | (*setsizefun) (parent, opht, 0); | |
2317 | } | |
2318 | ||
d834a2e9 | 2319 | XSETFASTINT (p->last_modified, 0); |
7ab12479 JB |
2320 | } |
2321 | #undef MINSIZE | |
2322 | #undef CURBEG | |
2323 | #undef CURSIZE | |
2324 | ||
2325 | \f | |
2326 | /* Return number of lines of text (not counting mode line) in W. */ | |
2327 | ||
2328 | int | |
2329 | window_internal_height (w) | |
2330 | struct window *w; | |
2331 | { | |
2332 | int ht = XFASTINT (w->height); | |
2333 | ||
2334 | if (MINI_WINDOW_P (w)) | |
2335 | return ht; | |
2336 | ||
265a9e55 JB |
2337 | if (!NILP (w->parent) || !NILP (w->vchild) || !NILP (w->hchild) |
2338 | || !NILP (w->next) || !NILP (w->prev) | |
44fa5b1e | 2339 | || FRAME_WANTS_MODELINE_P (XFRAME (WINDOW_FRAME (w)))) |
7ab12479 JB |
2340 | return ht - 1; |
2341 | ||
2342 | return ht; | |
2343 | } | |
2344 | ||
535e0b8e JB |
2345 | |
2346 | /* Return the number of columns in W. | |
a3c87d4e | 2347 | Don't count columns occupied by scroll bars or the vertical bar |
535e0b8e JB |
2348 | separating W from the sibling to its right. */ |
2349 | int | |
2350 | window_internal_width (w) | |
2351 | struct window *w; | |
2352 | { | |
2353 | FRAME_PTR f = XFRAME (WINDOW_FRAME (w)); | |
2354 | int left = XINT (w->left); | |
2355 | int width = XINT (w->width); | |
2356 | ||
2357 | /* If this window is flush against the right edge of the frame, its | |
2358 | internal width is its full width. */ | |
2359 | if (left + width >= FRAME_WIDTH (f)) | |
2360 | return width; | |
2361 | ||
2362 | /* If we are not flush right, then our rightmost columns are | |
2363 | occupied by some sort of separator. */ | |
2364 | ||
a3c87d4e JB |
2365 | /* Scroll bars occupy a few columns. */ |
2366 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) | |
ca0d0bb9 | 2367 | return width - FRAME_SCROLL_BAR_COLS (f); |
535e0b8e JB |
2368 | |
2369 | /* The column of `|' characters separating side-by-side windows | |
2370 | occupies one column only. */ | |
2371 | return width - 1; | |
2372 | } | |
2373 | ||
2374 | ||
7ab12479 JB |
2375 | /* Scroll contents of window WINDOW up N lines. */ |
2376 | ||
2377 | void | |
f8026fd8 | 2378 | window_scroll (window, n, noerror) |
7ab12479 JB |
2379 | Lisp_Object window; |
2380 | int n; | |
f8026fd8 | 2381 | int noerror; |
7ab12479 JB |
2382 | { |
2383 | register struct window *w = XWINDOW (window); | |
5ce7b543 | 2384 | register int opoint = PT; |
7ab12479 JB |
2385 | register int pos; |
2386 | register int ht = window_internal_height (w); | |
2387 | register Lisp_Object tem; | |
2388 | int lose; | |
2389 | Lisp_Object bolp, nmoved; | |
2390 | ||
d834a2e9 | 2391 | XSETFASTINT (tem, PT); |
7ab12479 JB |
2392 | tem = Fpos_visible_in_window_p (tem, window); |
2393 | ||
265a9e55 | 2394 | if (NILP (tem)) |
7ab12479 | 2395 | { |
cd2be1dd | 2396 | Fvertical_motion (make_number (- (ht / 2)), window); |
d834a2e9 | 2397 | XSETFASTINT (tem, PT); |
7ab12479 JB |
2398 | Fset_marker (w->start, tem, w->buffer); |
2399 | w->force_start = Qt; | |
2400 | } | |
2401 | ||
2402 | SET_PT (marker_position (w->start)); | |
5ce7b543 | 2403 | lose = n < 0 && PT == BEGV; |
540b6aa0 | 2404 | Fvertical_motion (make_number (n), window); |
5ce7b543 | 2405 | pos = PT; |
7ab12479 JB |
2406 | bolp = Fbolp (); |
2407 | SET_PT (opoint); | |
2408 | ||
2409 | if (lose) | |
f8026fd8 JB |
2410 | { |
2411 | if (noerror) | |
2412 | return; | |
2413 | else | |
2414 | Fsignal (Qbeginning_of_buffer, Qnil); | |
2415 | } | |
7ab12479 JB |
2416 | |
2417 | if (pos < ZV) | |
7ab12479 JB |
2418 | { |
2419 | set_marker_restricted (w->start, make_number (pos), w->buffer); | |
2420 | w->start_at_line_beg = bolp; | |
2421 | w->update_mode_line = Qt; | |
d834a2e9 | 2422 | XSETFASTINT (w->last_modified, 0); |
7ab12479 JB |
2423 | if (pos > opoint) |
2424 | SET_PT (pos); | |
2425 | if (n < 0) | |
2426 | { | |
2427 | SET_PT (pos); | |
540b6aa0 | 2428 | tem = Fvertical_motion (make_number (ht), window); |
5ce7b543 | 2429 | if (PT > opoint || XFASTINT (tem) < ht) |
7ab12479 JB |
2430 | SET_PT (opoint); |
2431 | else | |
540b6aa0 | 2432 | Fvertical_motion (make_number (-1), window); |
7ab12479 JB |
2433 | } |
2434 | } | |
2435 | else | |
f8026fd8 JB |
2436 | { |
2437 | if (noerror) | |
2438 | return; | |
2439 | else | |
2440 | Fsignal (Qend_of_buffer, Qnil); | |
2441 | } | |
7ab12479 JB |
2442 | } |
2443 | \f | |
2444 | /* This is the guts of Fscroll_up and Fscroll_down. */ | |
2445 | ||
2446 | static void | |
2447 | scroll_command (n, direction) | |
2448 | register Lisp_Object n; | |
2449 | int direction; | |
2450 | { | |
2451 | register int defalt; | |
2452 | int count = specpdl_ptr - specpdl; | |
2453 | ||
95605e15 JB |
2454 | /* If selected window's buffer isn't current, make it current for the moment. |
2455 | But don't screw up if window_scroll gets an error. */ | |
7ab12479 | 2456 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
95605e15 JB |
2457 | { |
2458 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2459 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
2460 | } | |
7ab12479 JB |
2461 | |
2462 | defalt = (window_internal_height (XWINDOW (selected_window)) | |
2463 | - next_screen_context_lines); | |
2464 | defalt = direction * (defalt < 1 ? 1 : defalt); | |
2465 | ||
265a9e55 | 2466 | if (NILP (n)) |
f8026fd8 | 2467 | window_scroll (selected_window, defalt, 0); |
7ab12479 | 2468 | else if (EQ (n, Qminus)) |
f8026fd8 | 2469 | window_scroll (selected_window, - defalt, 0); |
7ab12479 JB |
2470 | else |
2471 | { | |
2472 | n = Fprefix_numeric_value (n); | |
f8026fd8 | 2473 | window_scroll (selected_window, XINT (n) * direction, 0); |
7ab12479 | 2474 | } |
95605e15 JB |
2475 | |
2476 | unbind_to (count, Qnil); | |
7ab12479 JB |
2477 | } |
2478 | ||
2479 | DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "P", | |
2480 | "Scroll text of current window upward ARG lines; or near full screen if no ARG.\n\ | |
2481 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
279e0e0c | 2482 | Negative ARG means scroll downward.\n\ |
7ab12479 JB |
2483 | When calling from a program, supply a number as argument or nil.") |
2484 | (n) | |
2485 | Lisp_Object n; | |
2486 | { | |
2487 | scroll_command (n, 1); | |
2488 | return Qnil; | |
2489 | } | |
2490 | ||
2491 | DEFUN ("scroll-down", Fscroll_down, Sscroll_down, 0, 1, "P", | |
2492 | "Scroll text of current window downward ARG lines; or near full screen if no ARG.\n\ | |
2493 | A near full screen is `next-screen-context-lines' less than a full screen.\n\ | |
279e0e0c | 2494 | Negative ARG means scroll upward.\n\ |
7ab12479 JB |
2495 | When calling from a program, supply a number as argument or nil.") |
2496 | (n) | |
2497 | Lisp_Object n; | |
2498 | { | |
2499 | scroll_command (n, -1); | |
2500 | return Qnil; | |
2501 | } | |
ccd0664b RS |
2502 | \f |
2503 | DEFUN ("other-window-for-scrolling", Fother_window_for_scrolling, Sother_window_for_scrolling, 0, 0, 0, | |
2504 | "Return the other window for \"other window scroll\" commands.\n\ | |
77b24de6 | 2505 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ |
ccd0664b RS |
2506 | specifies the window.\n\ |
2507 | If `other-window-scroll-buffer' is non-nil, a window\n\ | |
2508 | showing that buffer is used.") | |
eb16ec06 | 2509 | () |
7ab12479 | 2510 | { |
ccd0664b | 2511 | Lisp_Object window; |
7ab12479 JB |
2512 | |
2513 | if (MINI_WINDOW_P (XWINDOW (selected_window)) | |
265a9e55 | 2514 | && !NILP (Vminibuf_scroll_window)) |
7ab12479 JB |
2515 | window = Vminibuf_scroll_window; |
2516 | /* If buffer is specified, scroll that buffer. */ | |
265a9e55 | 2517 | else if (!NILP (Vother_window_scroll_buffer)) |
7ab12479 JB |
2518 | { |
2519 | window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil); | |
265a9e55 | 2520 | if (NILP (window)) |
7ab12479 JB |
2521 | window = Fdisplay_buffer (Vother_window_scroll_buffer, Qt); |
2522 | } | |
2523 | else | |
dbc4e1c1 JB |
2524 | { |
2525 | /* Nothing specified; look for a neighboring window on the same | |
2526 | frame. */ | |
2527 | window = Fnext_window (selected_window, Qnil, Qnil); | |
2528 | ||
2529 | if (EQ (window, selected_window)) | |
2530 | /* That didn't get us anywhere; look for a window on another | |
2531 | visible frame. */ | |
2532 | do | |
2533 | window = Fnext_window (window, Qnil, Qt); | |
2534 | while (! FRAME_VISIBLE_P (XFRAME (WINDOW_FRAME (XWINDOW (window)))) | |
2535 | && ! EQ (window, selected_window)); | |
2536 | } | |
2537 | ||
605be8af | 2538 | CHECK_LIVE_WINDOW (window, 0); |
7ab12479 JB |
2539 | |
2540 | if (EQ (window, selected_window)) | |
2541 | error ("There is no other window"); | |
2542 | ||
ccd0664b RS |
2543 | return window; |
2544 | } | |
2545 | ||
2546 | DEFUN ("scroll-other-window", Fscroll_other_window, Sscroll_other_window, 0, 1, "P", | |
2547 | "Scroll next window upward ARG lines; or near full screen if no ARG.\n\ | |
2548 | The next window is the one below the current one; or the one at the top\n\ | |
2549 | if the current one is at the bottom. Negative ARG means scroll downward.\n\ | |
2550 | When calling from a program, supply a number as argument or nil.\n\ | |
2551 | \n\ | |
2552 | If in the minibuffer, `minibuffer-scroll-window' if non-nil\n\ | |
2553 | specifies the window to scroll.\n\ | |
2554 | If `other-window-scroll-buffer' is non-nil, scroll the window\n\ | |
2555 | showing that buffer, popping the buffer up if necessary.") | |
2556 | (n) | |
2557 | register Lisp_Object n; | |
2558 | { | |
2559 | register Lisp_Object window; | |
2560 | register int ht; | |
2561 | register struct window *w; | |
2562 | register int count = specpdl_ptr - specpdl; | |
2563 | ||
2564 | window = Fother_window_for_scrolling (); | |
2565 | ||
7ab12479 JB |
2566 | w = XWINDOW (window); |
2567 | ht = window_internal_height (w); | |
2568 | ||
2569 | /* Don't screw up if window_scroll gets an error. */ | |
2570 | record_unwind_protect (save_excursion_restore, save_excursion_save ()); | |
2571 | ||
2572 | Fset_buffer (w->buffer); | |
2573 | SET_PT (marker_position (w->pointm)); | |
2574 | ||
265a9e55 | 2575 | if (NILP (n)) |
f8026fd8 | 2576 | window_scroll (window, ht - next_screen_context_lines, 1); |
7ab12479 | 2577 | else if (EQ (n, Qminus)) |
f8026fd8 | 2578 | window_scroll (window, next_screen_context_lines - ht, 1); |
7ab12479 JB |
2579 | else |
2580 | { | |
017b2bad | 2581 | if (CONSP (n)) |
7ab12479 JB |
2582 | n = Fcar (n); |
2583 | CHECK_NUMBER (n, 0); | |
f8026fd8 | 2584 | window_scroll (window, XINT (n), 1); |
7ab12479 JB |
2585 | } |
2586 | ||
5ce7b543 | 2587 | Fset_marker (w->pointm, make_number (PT), Qnil); |
f4e7b2c2 | 2588 | unbind_to (count, Qnil); |
7ab12479 JB |
2589 | |
2590 | return Qnil; | |
2591 | } | |
2592 | \f | |
644b477c | 2593 | DEFUN ("scroll-left", Fscroll_left, Sscroll_left, 0, 1, "P", |
7ab12479 JB |
2594 | "Scroll selected window display ARG columns left.\n\ |
2595 | Default for ARG is window width minus 2.") | |
2596 | (arg) | |
2597 | register Lisp_Object arg; | |
2598 | { | |
2599 | ||
265a9e55 | 2600 | if (NILP (arg)) |
d834a2e9 | 2601 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
2602 | else |
2603 | arg = Fprefix_numeric_value (arg); | |
2604 | ||
2605 | return | |
2606 | Fset_window_hscroll (selected_window, | |
2607 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2608 | + XINT (arg))); | |
2609 | } | |
2610 | ||
644b477c | 2611 | DEFUN ("scroll-right", Fscroll_right, Sscroll_right, 0, 1, "P", |
7ab12479 JB |
2612 | "Scroll selected window display ARG columns right.\n\ |
2613 | Default for ARG is window width minus 2.") | |
2614 | (arg) | |
2615 | register Lisp_Object arg; | |
2616 | { | |
265a9e55 | 2617 | if (NILP (arg)) |
d834a2e9 | 2618 | XSETFASTINT (arg, window_internal_width (XWINDOW (selected_window)) - 2); |
7ab12479 JB |
2619 | else |
2620 | arg = Fprefix_numeric_value (arg); | |
2621 | ||
2622 | return | |
2623 | Fset_window_hscroll (selected_window, | |
2624 | make_number (XINT (XWINDOW (selected_window)->hscroll) | |
2625 | - XINT (arg))); | |
2626 | } | |
2627 | ||
2628 | DEFUN ("recenter", Frecenter, Srecenter, 0, 1, "P", | |
44fa5b1e | 2629 | "Center point in window and redisplay frame. With ARG, put point on line ARG.\n\ |
7ab12479 | 2630 | The desired position of point is always relative to the current window.\n\ |
44fa5b1e JB |
2631 | Just C-u as prefix means put point in the center of the window.\n\ |
2632 | No arg (i.e., it is nil) erases the entire frame and then\n\ | |
2633 | redraws with point in the center of the current window.") | |
7ab12479 JB |
2634 | (n) |
2635 | register Lisp_Object n; | |
2636 | { | |
2637 | register struct window *w = XWINDOW (selected_window); | |
2638 | register int ht = window_internal_height (w); | |
113d9015 | 2639 | struct position pos; |
540b6aa0 | 2640 | Lisp_Object window; |
7ab12479 | 2641 | |
265a9e55 | 2642 | if (NILP (n)) |
7ab12479 | 2643 | { |
44fa5b1e | 2644 | extern int frame_garbaged; |
7ab12479 | 2645 | |
44fa5b1e | 2646 | SET_FRAME_GARBAGED (XFRAME (WINDOW_FRAME (w))); |
d834a2e9 | 2647 | XSETFASTINT (n, ht / 2); |
7ab12479 | 2648 | } |
017b2bad | 2649 | else if (CONSP (n)) /* Just C-u. */ |
7ab12479 | 2650 | { |
d834a2e9 | 2651 | XSETFASTINT (n, ht / 2); |
7ab12479 JB |
2652 | } |
2653 | else | |
2654 | { | |
2655 | n = Fprefix_numeric_value (n); | |
2656 | CHECK_NUMBER (n, 0); | |
2657 | } | |
2658 | ||
2659 | if (XINT (n) < 0) | |
2660 | XSETINT (n, XINT (n) + ht); | |
2661 | ||
74112613 | 2662 | XSETWINDOW (window, w); |
113d9015 KH |
2663 | pos = *vmotion (point, - XINT (n), window_internal_width (w) - 1, |
2664 | XINT (w->hscroll), window); | |
7ab12479 | 2665 | |
113d9015 KH |
2666 | Fset_marker (w->start, make_number (pos.bufpos), w->buffer); |
2667 | w->start_at_line_beg = ((pos.bufpos == BEGV | |
2668 | || FETCH_CHAR (pos.bufpos - 1) == '\n') | |
2669 | ? Qt : Qnil); | |
7ab12479 JB |
2670 | w->force_start = Qt; |
2671 | ||
2672 | return Qnil; | |
2673 | } | |
2674 | \f | |
2675 | DEFUN ("move-to-window-line", Fmove_to_window_line, Smove_to_window_line, | |
2676 | 1, 1, "P", | |
2677 | "Position point relative to window.\n\ | |
19e3bf0a | 2678 | With no argument, position point at center of window.\n\ |
44fa5b1e | 2679 | An argument specifies frame line; zero means top of window,\n\ |
7ab12479 JB |
2680 | negative means relative to bottom of window.") |
2681 | (arg) | |
2682 | register Lisp_Object arg; | |
2683 | { | |
2684 | register struct window *w = XWINDOW (selected_window); | |
2685 | register int height = window_internal_height (w); | |
2686 | register int start; | |
540b6aa0 | 2687 | Lisp_Object window; |
7ab12479 | 2688 | |
265a9e55 | 2689 | if (NILP (arg)) |
d834a2e9 | 2690 | XSETFASTINT (arg, height / 2); |
7ab12479 JB |
2691 | else |
2692 | { | |
2693 | arg = Fprefix_numeric_value (arg); | |
2694 | if (XINT (arg) < 0) | |
2695 | XSETINT (arg, XINT (arg) + height); | |
2696 | } | |
2697 | ||
2698 | start = marker_position (w->start); | |
74112613 | 2699 | XSETWINDOW (window, w); |
7ab12479 JB |
2700 | if (start < BEGV || start > ZV) |
2701 | { | |
cd2be1dd | 2702 | Fvertical_motion (make_number (- (height / 2)), window); |
5ce7b543 | 2703 | Fset_marker (w->start, make_number (PT), w->buffer); |
7ab12479 JB |
2704 | w->start_at_line_beg = Fbolp (); |
2705 | w->force_start = Qt; | |
2706 | } | |
2707 | else | |
2708 | SET_PT (start); | |
2709 | ||
540b6aa0 | 2710 | return Fvertical_motion (arg, window); |
7ab12479 JB |
2711 | } |
2712 | \f | |
2713 | struct save_window_data | |
2714 | { | |
2715 | int size_from_Lisp_Vector_struct; | |
2716 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
8f6ea2e9 | 2717 | Lisp_Object frame_width, frame_height, frame_menu_bar_lines; |
bdc727bf | 2718 | Lisp_Object selected_frame; |
7ab12479 JB |
2719 | Lisp_Object current_window; |
2720 | Lisp_Object current_buffer; | |
2721 | Lisp_Object minibuf_scroll_window; | |
2722 | Lisp_Object root_window; | |
bdc727bf | 2723 | Lisp_Object focus_frame; |
756b6edc RS |
2724 | /* Record the values of window-min-width and window-min-height |
2725 | so that window sizes remain consistent with them. */ | |
2726 | Lisp_Object min_width, min_height; | |
7ab12479 JB |
2727 | /* A vector, interpreted as a struct saved_window */ |
2728 | Lisp_Object saved_windows; | |
2729 | }; | |
ff06df24 JB |
2730 | |
2731 | /* Arg to Fmake_vector */ | |
2732 | #define SAVE_WINDOW_DATA_SIZE \ | |
2733 | ((sizeof (struct save_window_data) \ | |
2734 | - (sizeof (struct Lisp_Vector) \ | |
2735 | /* Don't count the contents member of the struct Lisp_Vector */ \ | |
2736 | - sizeof (Lisp_Object))) \ | |
2737 | / sizeof (Lisp_Object)) | |
7ab12479 JB |
2738 | |
2739 | /* This is saved as a Lisp_Vector */ | |
2740 | struct saved_window | |
2741 | { | |
2742 | /* these first two must agree with struct Lisp_Vector in lisp.h */ | |
2743 | int size_from_Lisp_Vector_struct; | |
2744 | struct Lisp_Vector *next_from_Lisp_Vector_struct; | |
2745 | ||
2746 | Lisp_Object window; | |
2747 | Lisp_Object buffer, start, pointm, mark; | |
2748 | Lisp_Object left, top, width, height, hscroll; | |
2749 | Lisp_Object parent, prev; | |
2750 | Lisp_Object start_at_line_beg; | |
2751 | Lisp_Object display_table; | |
2752 | }; | |
2753 | #define SAVED_WINDOW_VECTOR_SIZE 14 /* Arg to Fmake_vector */ | |
2754 | ||
2755 | #define SAVED_WINDOW_N(swv,n) \ | |
2756 | ((struct saved_window *) (XVECTOR ((swv)->contents[(n)]))) | |
2757 | ||
2758 | DEFUN ("window-configuration-p", Fwindow_configuration_p, Swindow_configuration_p, 1, 1, 0, | |
2759 | "T if OBJECT is a window-configration object.") | |
2760 | (obj) | |
2761 | Lisp_Object obj; | |
2762 | { | |
017b2bad | 2763 | if (WINDOW_CONFIGURATIONP (obj)) |
7ab12479 JB |
2764 | return Qt; |
2765 | return Qnil; | |
2766 | } | |
2767 | ||
2768 | ||
d5b2799e RS |
2769 | DEFUN ("set-window-configuration", Fset_window_configuration, |
2770 | Sset_window_configuration, 1, 1, 0, | |
7ab12479 JB |
2771 | "Set the configuration of windows and buffers as specified by CONFIGURATION.\n\ |
2772 | CONFIGURATION must be a value previously returned\n\ | |
2773 | by `current-window-configuration' (which see).") | |
2f83aebe JB |
2774 | (configuration) |
2775 | Lisp_Object configuration; | |
7ab12479 | 2776 | { |
7ab12479 JB |
2777 | register struct save_window_data *data; |
2778 | struct Lisp_Vector *saved_windows; | |
7ab12479 | 2779 | Lisp_Object new_current_buffer; |
fd482be5 | 2780 | Lisp_Object frame; |
44fa5b1e | 2781 | FRAME_PTR f; |
7ab12479 | 2782 | |
017b2bad | 2783 | while (!WINDOW_CONFIGURATIONP (configuration)) |
7ab12479 | 2784 | { |
2f83aebe JB |
2785 | configuration = wrong_type_argument (intern ("window-configuration-p"), |
2786 | configuration); | |
7ab12479 JB |
2787 | } |
2788 | ||
2f83aebe | 2789 | data = (struct save_window_data *) XVECTOR (configuration); |
7ab12479 JB |
2790 | saved_windows = XVECTOR (data->saved_windows); |
2791 | ||
7ab12479 | 2792 | new_current_buffer = data->current_buffer; |
265a9e55 | 2793 | if (NILP (XBUFFER (new_current_buffer)->name)) |
7ab12479 JB |
2794 | new_current_buffer = Qnil; |
2795 | ||
fd482be5 JB |
2796 | frame = XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame; |
2797 | f = XFRAME (frame); | |
9ace597f | 2798 | |
fd482be5 JB |
2799 | /* If f is a dead frame, don't bother rebuilding its window tree. |
2800 | However, there is other stuff we should still try to do below. */ | |
2801 | if (FRAME_LIVE_P (f)) | |
7ab12479 | 2802 | { |
fd482be5 JB |
2803 | register struct window *w; |
2804 | register struct saved_window *p; | |
2805 | int k; | |
2806 | ||
2807 | /* If the frame has been resized since this window configuration was | |
2808 | made, we change the frame to the size specified in the | |
2809 | configuration, restore the configuration, and then resize it | |
2810 | back. We keep track of the prevailing height in these variables. */ | |
2811 | int previous_frame_height = FRAME_HEIGHT (f); | |
2812 | int previous_frame_width = FRAME_WIDTH (f); | |
8f6ea2e9 | 2813 | int previous_frame_menu_bar_lines = FRAME_MENU_BAR_LINES (f); |
fd482be5 JB |
2814 | |
2815 | if (XFASTINT (data->frame_height) != previous_frame_height | |
2816 | || XFASTINT (data->frame_width) != previous_frame_width) | |
2817 | change_frame_size (f, data->frame_height, data->frame_width, 0, 0); | |
217f2871 | 2818 | #ifdef HAVE_X_WINDOWS |
8f6ea2e9 KH |
2819 | if (XFASTINT (data->frame_menu_bar_lines) |
2820 | != previous_frame_menu_bar_lines) | |
2821 | x_set_menu_bar_lines (f, data->frame_menu_bar_lines, 0); | |
217f2871 | 2822 | #endif |
fd482be5 JB |
2823 | |
2824 | windows_or_buffers_changed++; | |
2825 | ||
756b6edc RS |
2826 | /* Temporarily avoid any problems with windows that are smaller |
2827 | than they are supposed to be. */ | |
2828 | window_min_height = 1; | |
2829 | window_min_width = 1; | |
2830 | ||
fd482be5 JB |
2831 | /* Kludge Alert! |
2832 | Mark all windows now on frame as "deleted". | |
2833 | Restoring the new configuration "undeletes" any that are in it. | |
2834 | ||
2835 | Save their current buffers in their height fields, since we may | |
2836 | need it later, if a buffer saved in the configuration is now | |
2837 | dead. */ | |
2838 | delete_all_subwindows (XWINDOW (FRAME_ROOT_WINDOW (f))); | |
2839 | ||
2840 | for (k = 0; k < saved_windows->size; k++) | |
2841 | { | |
2842 | p = SAVED_WINDOW_N (saved_windows, k); | |
2843 | w = XWINDOW (p->window); | |
2844 | w->next = Qnil; | |
7ab12479 | 2845 | |
fd482be5 JB |
2846 | if (!NILP (p->parent)) |
2847 | w->parent = SAVED_WINDOW_N (saved_windows, | |
2848 | XFASTINT (p->parent))->window; | |
2849 | else | |
2850 | w->parent = Qnil; | |
7ab12479 | 2851 | |
fd482be5 | 2852 | if (!NILP (p->prev)) |
7ab12479 | 2853 | { |
fd482be5 JB |
2854 | w->prev = SAVED_WINDOW_N (saved_windows, |
2855 | XFASTINT (p->prev))->window; | |
2856 | XWINDOW (w->prev)->next = p->window; | |
2857 | } | |
2858 | else | |
2859 | { | |
2860 | w->prev = Qnil; | |
2861 | if (!NILP (w->parent)) | |
2862 | { | |
2863 | if (EQ (p->width, XWINDOW (w->parent)->width)) | |
2864 | { | |
2865 | XWINDOW (w->parent)->vchild = p->window; | |
2866 | XWINDOW (w->parent)->hchild = Qnil; | |
2867 | } | |
2868 | else | |
2869 | { | |
2870 | XWINDOW (w->parent)->hchild = p->window; | |
2871 | XWINDOW (w->parent)->vchild = Qnil; | |
2872 | } | |
2873 | } | |
2874 | } | |
2875 | ||
2876 | /* If we squirreled away the buffer in the window's height, | |
2877 | restore it now. */ | |
017b2bad | 2878 | if (BUFFERP (w->height)) |
fd482be5 JB |
2879 | w->buffer = w->height; |
2880 | w->left = p->left; | |
2881 | w->top = p->top; | |
2882 | w->width = p->width; | |
2883 | w->height = p->height; | |
2884 | w->hscroll = p->hscroll; | |
2885 | w->display_table = p->display_table; | |
d834a2e9 | 2886 | XSETFASTINT (w->last_modified, 0); |
fd482be5 JB |
2887 | |
2888 | /* Reinstall the saved buffer and pointers into it. */ | |
2889 | if (NILP (p->buffer)) | |
2890 | w->buffer = p->buffer; | |
2891 | else | |
2892 | { | |
2893 | if (!NILP (XBUFFER (p->buffer)->name)) | |
2894 | /* If saved buffer is alive, install it. */ | |
2895 | { | |
2896 | w->buffer = p->buffer; | |
2897 | w->start_at_line_beg = p->start_at_line_beg; | |
2898 | set_marker_restricted (w->start, | |
2899 | Fmarker_position (p->start), | |
2900 | w->buffer); | |
2901 | set_marker_restricted (w->pointm, | |
2902 | Fmarker_position (p->pointm), | |
2903 | w->buffer); | |
2904 | Fset_marker (XBUFFER (w->buffer)->mark, | |
2905 | Fmarker_position (p->mark), w->buffer); | |
2906 | ||
2907 | /* As documented in Fcurrent_window_configuration, don't | |
2908 | save the location of point in the buffer which was current | |
2909 | when the window configuration was recorded. */ | |
6b54027b RS |
2910 | if (!EQ (p->buffer, new_current_buffer) |
2911 | && XBUFFER (p->buffer) == current_buffer) | |
fd482be5 JB |
2912 | Fgoto_char (w->pointm); |
2913 | } | |
52a68e98 RS |
2914 | else if (NILP (w->buffer) || NILP (XBUFFER (w->buffer)->name)) |
2915 | /* Else unless window has a live buffer, get one. */ | |
7ab12479 | 2916 | { |
fd482be5 JB |
2917 | w->buffer = Fcdr (Fcar (Vbuffer_alist)); |
2918 | /* This will set the markers to beginning of visible | |
2919 | range. */ | |
2920 | set_marker_restricted (w->start, make_number (0), w->buffer); | |
2921 | set_marker_restricted (w->pointm, make_number (0),w->buffer); | |
2922 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
2923 | } |
2924 | else | |
fd482be5 | 2925 | /* Keeping window's old buffer; make sure the markers |
52a68e98 | 2926 | are real. */ |
7ab12479 | 2927 | { |
fd482be5 JB |
2928 | /* Set window markers at start of visible range. */ |
2929 | if (XMARKER (w->start)->buffer == 0) | |
2930 | set_marker_restricted (w->start, make_number (0), | |
2931 | w->buffer); | |
2932 | if (XMARKER (w->pointm)->buffer == 0) | |
2933 | set_marker_restricted (w->pointm, | |
2934 | (make_number | |
2935 | (BUF_PT (XBUFFER (w->buffer)))), | |
2936 | w->buffer); | |
2937 | w->start_at_line_beg = Qt; | |
7ab12479 JB |
2938 | } |
2939 | } | |
2940 | } | |
9ace597f | 2941 | |
fd482be5 JB |
2942 | FRAME_ROOT_WINDOW (f) = data->root_window; |
2943 | Fselect_window (data->current_window); | |
7ab12479 | 2944 | |
fd482be5 | 2945 | #ifdef MULTI_FRAME |
db269683 | 2946 | if (NILP (data->focus_frame) |
017b2bad | 2947 | || (FRAMEP (data->focus_frame) |
db269683 JB |
2948 | && FRAME_LIVE_P (XFRAME (data->focus_frame)))) |
2949 | Fredirect_frame_focus (frame, data->focus_frame); | |
fd482be5 | 2950 | #endif |
7ab12479 | 2951 | |
fd482be5 JB |
2952 | #if 0 /* I don't understand why this is needed, and it causes problems |
2953 | when the frame's old selected window has been deleted. */ | |
2954 | #ifdef MULTI_FRAME | |
2955 | if (f != selected_frame && ! FRAME_TERMCAP_P (f)) | |
d5b2799e | 2956 | Fhandle_switch_frame (WINDOW_FRAME (XWINDOW (data->root_window)), Qnil); |
fd482be5 JB |
2957 | #endif |
2958 | #endif | |
2959 | ||
2960 | /* Set the screen height to the value it had before this function. */ | |
2961 | if (previous_frame_height != FRAME_HEIGHT (f) | |
2962 | || previous_frame_width != FRAME_WIDTH (f)) | |
2963 | change_frame_size (f, previous_frame_height, previous_frame_width, | |
2964 | 0, 0); | |
217f2871 | 2965 | #ifdef HAVE_X_WINDOWS |
8f6ea2e9 KH |
2966 | if (previous_frame_menu_bar_lines != FRAME_MENU_BAR_LINES (f)) |
2967 | x_set_menu_bar_lines (f, previous_frame_menu_bar_lines, 0); | |
217f2871 | 2968 | #endif |
fd482be5 | 2969 | } |
bdc727bf | 2970 | |
756b6edc RS |
2971 | /* Restore the minimum heights recorded in the configuration. */ |
2972 | window_min_height = XINT (data->min_height); | |
2973 | window_min_width = XINT (data->min_width); | |
2974 | ||
ad854249 | 2975 | #ifdef MULTI_FRAME |
bdc727bf | 2976 | /* Fselect_window will have made f the selected frame, so we |
d5b2799e | 2977 | reselect the proper frame here. Fhandle_switch_frame will change the |
bdc727bf JB |
2978 | selected window too, but that doesn't make the call to |
2979 | Fselect_window above totally superfluous; it still sets f's | |
2980 | selected window. */ | |
fd482be5 | 2981 | if (FRAME_LIVE_P (XFRAME (data->selected_frame))) |
d5b2799e | 2982 | Fhandle_switch_frame (data->selected_frame, Qnil); |
ad854249 | 2983 | #endif |
bdc727bf JB |
2984 | |
2985 | if (!NILP (new_current_buffer)) | |
2986 | Fset_buffer (new_current_buffer); | |
2987 | ||
7ab12479 JB |
2988 | Vminibuf_scroll_window = data->minibuf_scroll_window; |
2989 | return (Qnil); | |
2990 | } | |
2991 | ||
44fa5b1e | 2992 | /* Mark all windows now on frame as deleted |
7ab12479 JB |
2993 | by setting their buffers to nil. */ |
2994 | ||
fd482be5 | 2995 | void |
7ab12479 JB |
2996 | delete_all_subwindows (w) |
2997 | register struct window *w; | |
2998 | { | |
265a9e55 | 2999 | if (!NILP (w->next)) |
7ab12479 | 3000 | delete_all_subwindows (XWINDOW (w->next)); |
265a9e55 | 3001 | if (!NILP (w->vchild)) |
7ab12479 | 3002 | delete_all_subwindows (XWINDOW (w->vchild)); |
265a9e55 | 3003 | if (!NILP (w->hchild)) |
7ab12479 | 3004 | delete_all_subwindows (XWINDOW (w->hchild)); |
605be8af JB |
3005 | |
3006 | w->height = w->buffer; /* See Fset_window_configuration for excuse. */ | |
3007 | ||
3008 | /* We set all three of these fields to nil, to make sure that we can | |
3009 | distinguish this dead window from any live window. Live leaf | |
3010 | windows will have buffer set, and combination windows will have | |
3011 | vchild or hchild set. */ | |
3012 | w->buffer = Qnil; | |
3013 | w->vchild = Qnil; | |
3014 | w->hchild = Qnil; | |
7ab12479 JB |
3015 | } |
3016 | \f | |
3017 | static int | |
3018 | count_windows (window) | |
3019 | register struct window *window; | |
3020 | { | |
3021 | register int count = 1; | |
265a9e55 | 3022 | if (!NILP (window->next)) |
7ab12479 | 3023 | count += count_windows (XWINDOW (window->next)); |
265a9e55 | 3024 | if (!NILP (window->vchild)) |
7ab12479 | 3025 | count += count_windows (XWINDOW (window->vchild)); |
265a9e55 | 3026 | if (!NILP (window->hchild)) |
7ab12479 JB |
3027 | count += count_windows (XWINDOW (window->hchild)); |
3028 | return count; | |
3029 | } | |
3030 | ||
3031 | static int | |
3032 | save_window_save (window, vector, i) | |
3033 | Lisp_Object window; | |
3034 | struct Lisp_Vector *vector; | |
3035 | int i; | |
3036 | { | |
3037 | register struct saved_window *p; | |
3038 | register struct window *w; | |
3039 | register Lisp_Object tem; | |
3040 | ||
265a9e55 | 3041 | for (;!NILP (window); window = w->next) |
7ab12479 JB |
3042 | { |
3043 | p = SAVED_WINDOW_N (vector, i); | |
3044 | w = XWINDOW (window); | |
3045 | ||
d834a2e9 | 3046 | XSETFASTINT (w->temslot, i++); |
7ab12479 JB |
3047 | p->window = window; |
3048 | p->buffer = w->buffer; | |
3049 | p->left = w->left; | |
3050 | p->top = w->top; | |
3051 | p->width = w->width; | |
3052 | p->height = w->height; | |
3053 | p->hscroll = w->hscroll; | |
3054 | p->display_table = w->display_table; | |
265a9e55 | 3055 | if (!NILP (w->buffer)) |
7ab12479 JB |
3056 | { |
3057 | /* Save w's value of point in the window configuration. | |
3058 | If w is the selected window, then get the value of point | |
3059 | from the buffer; pointm is garbage in the selected window. */ | |
3060 | if (EQ (window, selected_window)) | |
3061 | { | |
3062 | p->pointm = Fmake_marker (); | |
3063 | Fset_marker (p->pointm, BUF_PT (XBUFFER (w->buffer)), | |
3064 | w->buffer); | |
3065 | } | |
3066 | else | |
3067 | p->pointm = Fcopy_marker (w->pointm); | |
3068 | ||
3069 | p->start = Fcopy_marker (w->start); | |
3070 | p->start_at_line_beg = w->start_at_line_beg; | |
3071 | ||
3072 | tem = XBUFFER (w->buffer)->mark; | |
3073 | p->mark = Fcopy_marker (tem); | |
3074 | } | |
3075 | else | |
3076 | { | |
3077 | p->pointm = Qnil; | |
3078 | p->start = Qnil; | |
3079 | p->mark = Qnil; | |
3080 | p->start_at_line_beg = Qnil; | |
3081 | } | |
3082 | ||
265a9e55 | 3083 | if (NILP (w->parent)) |
7ab12479 JB |
3084 | p->parent = Qnil; |
3085 | else | |
3086 | p->parent = XWINDOW (w->parent)->temslot; | |
3087 | ||
265a9e55 | 3088 | if (NILP (w->prev)) |
7ab12479 JB |
3089 | p->prev = Qnil; |
3090 | else | |
3091 | p->prev = XWINDOW (w->prev)->temslot; | |
3092 | ||
265a9e55 | 3093 | if (!NILP (w->vchild)) |
7ab12479 | 3094 | i = save_window_save (w->vchild, vector, i); |
265a9e55 | 3095 | if (!NILP (w->hchild)) |
7ab12479 JB |
3096 | i = save_window_save (w->hchild, vector, i); |
3097 | } | |
3098 | ||
3099 | return i; | |
3100 | } | |
3101 | ||
3102 | DEFUN ("current-window-configuration", | |
43bad991 | 3103 | Fcurrent_window_configuration, Scurrent_window_configuration, 0, 1, 0, |
44fa5b1e JB |
3104 | "Return an object representing the current window configuration of FRAME.\n\ |
3105 | If FRAME is nil or omitted, use the selected frame.\n\ | |
7ab12479 JB |
3106 | This describes the number of windows, their sizes and current buffers,\n\ |
3107 | and for each displayed buffer, where display starts, and the positions of\n\ | |
3108 | point and mark. An exception is made for point in the current buffer:\n\ | |
bdc727bf JB |
3109 | its value is -not- saved.\n\ |
3110 | This also records the currently selected frame, and FRAME's focus\n\ | |
3111 | redirection (see `redirect-frame-focus').") | |
44fa5b1e JB |
3112 | (frame) |
3113 | Lisp_Object frame; | |
7ab12479 JB |
3114 | { |
3115 | register Lisp_Object tem; | |
3116 | register int n_windows; | |
3117 | register struct save_window_data *data; | |
3118 | register int i; | |
44fa5b1e | 3119 | FRAME_PTR f; |
43bad991 | 3120 | |
44fa5b1e JB |
3121 | if (NILP (frame)) |
3122 | f = selected_frame; | |
43bad991 JB |
3123 | else |
3124 | { | |
44fa5b1e JB |
3125 | CHECK_LIVE_FRAME (frame, 0); |
3126 | f = XFRAME (frame); | |
43bad991 | 3127 | } |
7ab12479 | 3128 | |
44fa5b1e | 3129 | n_windows = count_windows (XWINDOW (FRAME_ROOT_WINDOW (f))); |
7ab12479 JB |
3130 | data = (struct save_window_data *) |
3131 | XVECTOR (Fmake_vector (make_number (SAVE_WINDOW_DATA_SIZE), | |
3132 | Qnil)); | |
d834a2e9 KH |
3133 | XSETFASTINT (data->frame_width, FRAME_WIDTH (f)); |
3134 | XSETFASTINT (data->frame_height, FRAME_HEIGHT (f)); | |
3135 | XSETFASTINT (data->frame_menu_bar_lines, FRAME_MENU_BAR_LINES (f)); | |
ad854249 | 3136 | #ifdef MULTI_FRAME |
74112613 | 3137 | XSETFRAME (data->selected_frame, selected_frame); |
ad854249 | 3138 | #endif |
44fa5b1e | 3139 | data->current_window = FRAME_SELECTED_WINDOW (f); |
74112613 | 3140 | XSETBUFFER (data->current_buffer, current_buffer); |
7ab12479 | 3141 | data->minibuf_scroll_window = Vminibuf_scroll_window; |
44fa5b1e | 3142 | data->root_window = FRAME_ROOT_WINDOW (f); |
bdc727bf | 3143 | data->focus_frame = FRAME_FOCUS_FRAME (f); |
74112613 KH |
3144 | XSETINT (data->min_height, window_min_height); |
3145 | XSETINT (data->min_width, window_min_width); | |
7ab12479 JB |
3146 | tem = Fmake_vector (make_number (n_windows), Qnil); |
3147 | data->saved_windows = tem; | |
3148 | for (i = 0; i < n_windows; i++) | |
3149 | XVECTOR (tem)->contents[i] | |
3150 | = Fmake_vector (make_number (SAVED_WINDOW_VECTOR_SIZE), Qnil); | |
44fa5b1e | 3151 | save_window_save (FRAME_ROOT_WINDOW (f), |
7ab12479 | 3152 | XVECTOR (tem), 0); |
74112613 | 3153 | XSETWINDOW_CONFIGURATION (tem, data); |
7ab12479 JB |
3154 | return (tem); |
3155 | } | |
3156 | ||
3157 | DEFUN ("save-window-excursion", Fsave_window_excursion, Ssave_window_excursion, | |
3158 | 0, UNEVALLED, 0, | |
3159 | "Execute body, preserving window sizes and contents.\n\ | |
eb16ec06 RS |
3160 | Restore which buffer appears in which window, where display starts,\n\ |
3161 | and the value of point and mark for each window.\n\ | |
3162 | Also restore which buffer is current.\n\ | |
3163 | But do not preserve point in the current buffer.\n\ | |
7ab12479 JB |
3164 | Does not restore the value of point in current buffer.") |
3165 | (args) | |
3166 | Lisp_Object args; | |
3167 | { | |
3168 | register Lisp_Object val; | |
3169 | register int count = specpdl_ptr - specpdl; | |
3170 | ||
3171 | record_unwind_protect (Fset_window_configuration, | |
43bad991 | 3172 | Fcurrent_window_configuration (Qnil)); |
7ab12479 JB |
3173 | val = Fprogn (args); |
3174 | return unbind_to (count, val); | |
3175 | } | |
3176 | \f | |
3177 | init_window_once () | |
3178 | { | |
44fa5b1e JB |
3179 | #ifdef MULTI_FRAME |
3180 | selected_frame = make_terminal_frame (); | |
3181 | minibuf_window = selected_frame->minibuffer_window; | |
3182 | selected_window = selected_frame->selected_window; | |
3183 | last_nonminibuf_frame = selected_frame; | |
3184 | #else /* not MULTI_FRAME */ | |
7ab12479 JB |
3185 | extern Lisp_Object get_minibuffer (); |
3186 | ||
87485d6f MW |
3187 | selected_frame = last_nonminibuf_frame = &the_only_frame; |
3188 | ||
95605e15 | 3189 | minibuf_window = make_window (); |
4b206065 | 3190 | FRAME_ROOT_WINDOW (selected_frame) = make_window (); |
7ab12479 | 3191 | |
44fa5b1e JB |
3192 | XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->next = minibuf_window; |
3193 | XWINDOW (minibuf_window)->prev = FRAME_ROOT_WINDOW (selected_frame); | |
4b206065 | 3194 | XWINDOW (minibuf_window)->mini_p = Qt; |
7ab12479 JB |
3195 | |
3196 | /* These values 9 and 10 are arbitrary, | |
3197 | just so that there is "something there." | |
3198 | Correct values are put in in init_xdisp */ | |
3199 | ||
d834a2e9 KH |
3200 | XSETFASTINT (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->width, 10); |
3201 | XSETFASTINT (XWINDOW (minibuf_window)->width, 10); | |
7ab12479 | 3202 | |
d834a2e9 KH |
3203 | XSETFASTINT (XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->height, 9); |
3204 | XSETFASTINT (XWINDOW (minibuf_window)->top, 9); | |
3205 | XSETFASTINT (XWINDOW (minibuf_window)->height, 1); | |
7ab12479 JB |
3206 | |
3207 | /* Prevent error in Fset_window_buffer. */ | |
44fa5b1e | 3208 | XWINDOW (FRAME_ROOT_WINDOW (selected_frame))->buffer = Qt; |
7ab12479 JB |
3209 | XWINDOW (minibuf_window)->buffer = Qt; |
3210 | ||
3211 | /* Now set them up for real. */ | |
44fa5b1e | 3212 | Fset_window_buffer (FRAME_ROOT_WINDOW (selected_frame), |
e5d77022 | 3213 | Fcurrent_buffer ()); |
7ab12479 JB |
3214 | Fset_window_buffer (minibuf_window, get_minibuffer (0)); |
3215 | ||
44fa5b1e | 3216 | selected_window = FRAME_ROOT_WINDOW (selected_frame); |
1d8d96fa JB |
3217 | /* Make sure this window seems more recently used than |
3218 | a newly-created, never-selected window. Increment | |
3219 | window_select_count so the first selection ever will get | |
3220 | something newer than this. */ | |
d834a2e9 | 3221 | XSETFASTINT (XWINDOW (selected_window)->use_time, ++window_select_count); |
44fa5b1e | 3222 | #endif /* not MULTI_FRAME */ |
7ab12479 JB |
3223 | } |
3224 | ||
3225 | syms_of_window () | |
3226 | { | |
3227 | Qwindowp = intern ("windowp"); | |
3228 | staticpro (&Qwindowp); | |
3229 | ||
806b4d9b JB |
3230 | Qwindow_live_p = intern ("window-live-p"); |
3231 | staticpro (&Qwindow_live_p); | |
605be8af | 3232 | |
2f83aebe | 3233 | #ifndef MULTI_FRAME |
7ab12479 JB |
3234 | /* Make sure all windows get marked */ |
3235 | staticpro (&minibuf_window); | |
2f83aebe | 3236 | #endif |
7ab12479 JB |
3237 | |
3238 | DEFVAR_LISP ("temp-buffer-show-function", &Vtemp_buffer_show_function, | |
3239 | "Non-nil means call as function to display a help buffer.\n\ | |
3240 | Used by `with-output-to-temp-buffer'."); | |
3241 | Vtemp_buffer_show_function = Qnil; | |
3242 | ||
3243 | DEFVAR_LISP ("display-buffer-function", &Vdisplay_buffer_function, | |
3244 | "If non-nil, function to call to handle `display-buffer'.\n\ | |
3245 | It will receive two args, the buffer and a flag which if non-nil means\n\ | |
3246 | that the currently selected window is not acceptable.\n\ | |
3247 | Commands such as `switch-to-buffer-other-window' and `find-file-other-window'\n\ | |
3248 | work using this function."); | |
3249 | Vdisplay_buffer_function = Qnil; | |
3250 | ||
7ab12479 JB |
3251 | DEFVAR_LISP ("minibuffer-scroll-window", &Vminibuf_scroll_window, |
3252 | "Non-nil means it is the window that C-M-v in minibuffer should scroll."); | |
3253 | Vminibuf_scroll_window = Qnil; | |
3254 | ||
3255 | DEFVAR_LISP ("other-window-scroll-buffer", &Vother_window_scroll_buffer, | |
3256 | "If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window."); | |
3257 | Vother_window_scroll_buffer = Qnil; | |
3258 | ||
44fa5b1e | 3259 | DEFVAR_BOOL ("pop-up-frames", &pop_up_frames, |
700f75a4 | 3260 | "*Non-nil means `display-buffer' should make a separate frame."); |
44fa5b1e | 3261 | pop_up_frames = 0; |
7ab12479 | 3262 | |
44fa5b1e | 3263 | DEFVAR_LISP ("pop-up-frame-function", &Vpop_up_frame_function, |
a90712c2 | 3264 | "Function to call to handle automatic new frame creation.\n\ |
44fa5b1e | 3265 | It is called with no arguments and should return a newly created frame.\n\ |
7ab12479 | 3266 | \n\ |
44fa5b1e JB |
3267 | A typical value might be `(lambda () (new-frame pop-up-frame-alist))'\n\ |
3268 | where `pop-up-frame-alist' would hold the default frame parameters."); | |
3269 | Vpop_up_frame_function = Qnil; | |
7ab12479 | 3270 | |
a90712c2 RS |
3271 | DEFVAR_LISP ("special-display-buffer-names", &Vspecial_display_buffer_names, |
3272 | "*List of buffer names that should have their own special frames.\n\ | |
3273 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
0a952b57 RS |
3274 | using `special-display-function'.\n\ |
3275 | Instead of a buffer name, the list entries can be cons cells. In that\n\ | |
3276 | case the car should be a buffer name, and the cdr data to be passed as a | |
3277 | second argument to `special-display-function'.\n\ | |
3278 | See also `special-display-regexps'."); | |
a90712c2 RS |
3279 | Vspecial_display_buffer_names = Qnil; |
3280 | ||
3281 | DEFVAR_LISP ("special-display-regexps", &Vspecial_display_regexps, | |
3282 | "*List of regexps saying which buffers should have their own special frames.\n\ | |
3283 | If a buffer name matches one of these regexps, it gets its own frame.\n\ | |
3284 | Displaying a buffer whose name is in this list makes a special frame for it\n\ | |
0a952b57 RS |
3285 | using `special-display-function'.\n\ |
3286 | Instead of a buffer name, the list entries can be cons cells. In that\n\ | |
3287 | case the car should be the regexp, and the cdr data to be passed as a | |
3288 | second argument to `special-display-function'.\n\ | |
3289 | See also `special-display-buffer-names'."); | |
a90712c2 RS |
3290 | Vspecial_display_regexps = Qnil; |
3291 | ||
3292 | DEFVAR_LISP ("special-display-function", &Vspecial_display_function, | |
3293 | "Function to call to make a new frame for a special buffer.\n\ | |
0a952b57 RS |
3294 | It is called with two arguments, the buffer and optional buffer specific\n\ |
3295 | data, and should return a window displaying that buffer.\n\ | |
a90712c2 | 3296 | The default value makes a separate frame for the buffer,\n\ |
bdd3a802 | 3297 | using `special-display-frame-alist' to specify the frame parameters.\n\ |
a90712c2 RS |
3298 | \n\ |
3299 | A buffer is special if its is listed in `special-display-buffer-names'\n\ | |
3300 | or matches a regexp in `special-display-regexps'."); | |
3301 | Vspecial_display_function = Qnil; | |
3302 | ||
7ab12479 JB |
3303 | DEFVAR_BOOL ("pop-up-windows", &pop_up_windows, |
3304 | "*Non-nil means display-buffer should make new windows."); | |
3305 | pop_up_windows = 1; | |
3306 | ||
3307 | DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines, | |
3308 | "*Number of lines of continuity when scrolling by screenfuls."); | |
3309 | next_screen_context_lines = 2; | |
3310 | ||
3311 | DEFVAR_INT ("split-height-threshold", &split_height_threshold, | |
3312 | "*display-buffer would prefer to split the largest window if this large.\n\ | |
3313 | If there is only one window, it is split regardless of this value."); | |
3314 | split_height_threshold = 500; | |
3315 | ||
3316 | DEFVAR_INT ("window-min-height", &window_min_height, | |
3317 | "*Delete any window less than this tall (including its mode line)."); | |
3318 | window_min_height = 4; | |
3319 | ||
3320 | DEFVAR_INT ("window-min-width", &window_min_width, | |
3321 | "*Delete any window less than this wide."); | |
3322 | window_min_width = 10; | |
3323 | ||
3324 | defsubr (&Sselected_window); | |
3325 | defsubr (&Sminibuffer_window); | |
3326 | defsubr (&Swindow_minibuffer_p); | |
3327 | defsubr (&Swindowp); | |
806b4d9b | 3328 | defsubr (&Swindow_live_p); |
7ab12479 JB |
3329 | defsubr (&Spos_visible_in_window_p); |
3330 | defsubr (&Swindow_buffer); | |
3331 | defsubr (&Swindow_height); | |
3332 | defsubr (&Swindow_width); | |
3333 | defsubr (&Swindow_hscroll); | |
3334 | defsubr (&Sset_window_hscroll); | |
3335 | defsubr (&Swindow_edges); | |
d5783c40 JB |
3336 | defsubr (&Scoordinates_in_window_p); |
3337 | defsubr (&Swindow_at); | |
7ab12479 JB |
3338 | defsubr (&Swindow_point); |
3339 | defsubr (&Swindow_start); | |
3340 | defsubr (&Swindow_end); | |
3341 | defsubr (&Sset_window_point); | |
3342 | defsubr (&Sset_window_start); | |
3343 | defsubr (&Swindow_dedicated_p); | |
d207b766 | 3344 | defsubr (&Sset_window_dedicated_p); |
7ab12479 JB |
3345 | defsubr (&Swindow_display_table); |
3346 | defsubr (&Sset_window_display_table); | |
3347 | defsubr (&Snext_window); | |
3348 | defsubr (&Sprevious_window); | |
3349 | defsubr (&Sother_window); | |
3350 | defsubr (&Sget_lru_window); | |
3351 | defsubr (&Sget_largest_window); | |
3352 | defsubr (&Sget_buffer_window); | |
3353 | defsubr (&Sdelete_other_windows); | |
3354 | defsubr (&Sdelete_windows_on); | |
3355 | defsubr (&Sreplace_buffer_in_windows); | |
3356 | defsubr (&Sdelete_window); | |
3357 | defsubr (&Sset_window_buffer); | |
3358 | defsubr (&Sselect_window); | |
3359 | defsubr (&Sdisplay_buffer); | |
3360 | defsubr (&Ssplit_window); | |
3361 | defsubr (&Senlarge_window); | |
3362 | defsubr (&Sshrink_window); | |
3363 | defsubr (&Sscroll_up); | |
3364 | defsubr (&Sscroll_down); | |
3365 | defsubr (&Sscroll_left); | |
3366 | defsubr (&Sscroll_right); | |
ccd0664b | 3367 | defsubr (&Sother_window_for_scrolling); |
7ab12479 JB |
3368 | defsubr (&Sscroll_other_window); |
3369 | defsubr (&Srecenter); | |
3370 | defsubr (&Smove_to_window_line); | |
3371 | defsubr (&Swindow_configuration_p); | |
3372 | defsubr (&Sset_window_configuration); | |
3373 | defsubr (&Scurrent_window_configuration); | |
3374 | defsubr (&Ssave_window_excursion); | |
3375 | } | |
3376 | ||
3377 | keys_of_window () | |
3378 | { | |
3379 | initial_define_key (control_x_map, '1', "delete-other-windows"); | |
3380 | initial_define_key (control_x_map, '2', "split-window"); | |
3381 | initial_define_key (control_x_map, '0', "delete-window"); | |
3382 | initial_define_key (control_x_map, 'o', "other-window"); | |
3383 | initial_define_key (control_x_map, '^', "enlarge-window"); | |
3384 | initial_define_key (control_x_map, '<', "scroll-left"); | |
3385 | initial_define_key (control_x_map, '>', "scroll-right"); | |
3386 | ||
3387 | initial_define_key (global_map, Ctl ('V'), "scroll-up"); | |
3388 | initial_define_key (meta_map, Ctl ('V'), "scroll-other-window"); | |
3389 | initial_define_key (meta_map, 'v', "scroll-down"); | |
3390 | ||
3391 | initial_define_key (global_map, Ctl('L'), "recenter"); | |
3392 | initial_define_key (meta_map, 'r', "move-to-window-line"); | |
3393 | } |