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83b2229f | 1 | /* Window definitions for GNU Emacs. |
acaf905b | 2 | Copyright (C) 1985-1986, 1993, 1995, 1997-2012 |
8cabe764 | 3 | Free Software Foundation, Inc. |
83b2229f JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
b9b1cc14 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
83b2229f | 8 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
83b2229f JB |
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 | |
b9b1cc14 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
83b2229f | 19 | |
f43dd834 GM |
20 | #ifndef WINDOW_H_INCLUDED |
21 | #define WINDOW_H_INCLUDED | |
22 | ||
23 | #include "dispextern.h" | |
83b2229f | 24 | |
6000501b KS |
25 | extern Lisp_Object Qleft, Qright; |
26 | ||
83b2229f JB |
27 | /* Windows are allocated as if they were vectors, but then the |
28 | Lisp data type is changed to Lisp_Window. They are garbage | |
29 | collected along with the vectors. | |
30 | ||
31 | All windows in use are arranged into a tree, with pointers up and down. | |
32 | ||
33 | Windows that are leaves of the tree are actually displayed | |
34 | and show the contents of buffers. Windows that are not leaves | |
35 | are used for representing the way groups of leaf windows are | |
44fa5b1e | 36 | arranged on the frame. Leaf windows never become non-leaves. |
83b2229f JB |
37 | They are deleted only by calling delete-window on them (but |
38 | this can be done implicitly). Combination windows can be created | |
39 | and deleted at any time. | |
40 | ||
41 | A leaf window has a non-nil buffer field, and also | |
42 | has markers in its start and pointm fields. Non-leaf windows | |
43 | have nil in these fields. | |
44 | ||
45 | Non-leaf windows are either vertical or horizontal combinations. | |
46 | ||
44fa5b1e | 47 | A vertical combination window has children that are arranged on the frame |
83b2229f JB |
48 | one above the next. Its vchild field points to the uppermost child. |
49 | The parent field of each of the children points to the vertical | |
50 | combination window. The next field of each child points to the | |
51 | child below it, or is nil for the lowest child. The prev field | |
52 | of each child points to the child above it, or is nil for the | |
53 | highest child. | |
54 | ||
55 | A horizontal combination window has children that are side by side. | |
56 | Its hchild field points to the leftmost child. In each child | |
57 | the next field points to the child to the right and the prev field | |
58 | points to the child to the left. | |
59 | ||
60 | The children of a vertical combination window may be leaf windows | |
61 | or horizontal combination windows. The children of a horizontal | |
62 | combination window may be leaf windows or vertical combination windows. | |
63 | ||
64 | At the top of the tree are two windows which have nil as parent. | |
65 | The second of these is minibuf_window. The first one manages all | |
44fa5b1e | 66 | the frame area that is not minibuffer, and is called the root window. |
83b2229f JB |
67 | Different windows can be the root at different times; |
68 | initially the root window is a leaf window, but if more windows | |
69 | are created then that leaf window ceases to be root and a newly | |
70 | made combination window becomes root instead. | |
71 | ||
fbfed6f0 JB |
72 | In any case, on screens which have an ordinary window and a |
73 | minibuffer, prev of the minibuf window is the root window and next of | |
74 | the root window is the minibuf window. On minibufferless screens or | |
75 | minibuffer-only screens, the root window and the minibuffer window are | |
27daff1e | 76 | one and the same, so its prev and next members are nil. |
83b2229f | 77 | |
27daff1e | 78 | A dead window has its buffer, hchild, and vchild windows all nil. */ |
83b2229f | 79 | |
f43dd834 GM |
80 | struct cursor_pos |
81 | { | |
82 | /* Pixel position. These are always window relative. */ | |
83 | int x, y; | |
84 | ||
85 | /* Glyph matrix position. */ | |
86 | int hpos, vpos; | |
87 | }; | |
88 | ||
3a45383a DA |
89 | /* Most code should use this macro to access Lisp fields in struct window. */ |
90 | ||
91 | #define WVAR(w, field) ((w)->INTERNAL_FIELD (field)) | |
92 | ||
83b2229f JB |
93 | struct window |
94 | { | |
eab3844f | 95 | /* This is for Lisp; the terminal code does not refer to it. */ |
b102ceb1 | 96 | struct vectorlike_header header; |
eab3844f | 97 | |
44fa5b1e | 98 | /* The frame this window is on. */ |
3a45383a | 99 | Lisp_Object INTERNAL_FIELD (frame); |
496e208e | 100 | |
496e208e MR |
101 | /* Following (to right or down) and preceding (to left or up) child |
102 | at same level of tree. */ | |
3a45383a DA |
103 | Lisp_Object INTERNAL_FIELD (next); |
104 | Lisp_Object INTERNAL_FIELD (prev); | |
496e208e MR |
105 | |
106 | /* First child of this window: vchild is used if this is a vertical | |
107 | combination, hchild if this is a horizontal combination. Of the | |
108 | fields vchild, hchild and buffer, one and only one is non-nil | |
109 | unless the window is dead. */ | |
3a45383a DA |
110 | Lisp_Object INTERNAL_FIELD (hchild); |
111 | Lisp_Object INTERNAL_FIELD (vchild); | |
496e208e MR |
112 | |
113 | /* The window this one is a child of. */ | |
3a45383a | 114 | Lisp_Object INTERNAL_FIELD (parent); |
496e208e MR |
115 | |
116 | /* The upper left corner coordinates of this window, as integers | |
117 | relative to upper left corner of frame = 0, 0. */ | |
3a45383a DA |
118 | Lisp_Object INTERNAL_FIELD (left_col); |
119 | Lisp_Object INTERNAL_FIELD (top_line); | |
496e208e MR |
120 | |
121 | /* The size of the window. */ | |
3a45383a DA |
122 | Lisp_Object INTERNAL_FIELD (total_lines); |
123 | Lisp_Object INTERNAL_FIELD (total_cols); | |
496e208e MR |
124 | |
125 | /* The normal size of the window. */ | |
3a45383a DA |
126 | Lisp_Object INTERNAL_FIELD (normal_lines); |
127 | Lisp_Object INTERNAL_FIELD (normal_cols); | |
496e208e MR |
128 | |
129 | /* New sizes of the window. */ | |
3a45383a DA |
130 | Lisp_Object INTERNAL_FIELD (new_total); |
131 | Lisp_Object INTERNAL_FIELD (new_normal); | |
496e208e MR |
132 | |
133 | /* The buffer displayed in this window. Of the fields vchild, | |
134 | hchild and buffer, one and only one is non-nil unless the window | |
135 | is dead. */ | |
3a45383a | 136 | Lisp_Object INTERNAL_FIELD (buffer); |
496e208e | 137 | |
6bff6497 EZ |
138 | /* A marker pointing to where in the text to start displaying. |
139 | BIDI Note: This is the _logical-order_ start, i.e. the smallest | |
140 | buffer position visible in the window, not necessarily the | |
141 | character displayed in the top left corner of the window. */ | |
3a45383a | 142 | Lisp_Object INTERNAL_FIELD (start); |
496e208e | 143 | |
83b2229f JB |
144 | /* A marker pointing to where in the text point is in this window, |
145 | used only when the window is not selected. | |
146 | This exists so that when multiple windows show one buffer | |
147 | each one can have its own value of point. */ | |
3a45383a | 148 | Lisp_Object INTERNAL_FIELD (pointm); |
496e208e | 149 | |
496e208e MR |
150 | /* No permanent meaning; used by save-window-excursion's |
151 | bookkeeping. */ | |
3a45383a | 152 | Lisp_Object INTERNAL_FIELD (temslot); |
496e208e | 153 | |
a3c87d4e | 154 | /* This window's vertical scroll bar. This field is only for use |
7c299e7a | 155 | by the window-system-dependent code which implements the |
a3c87d4e JB |
156 | scroll bars; it can store anything it likes here. If this |
157 | window is newly created and we haven't displayed a scroll bar in | |
158 | it yet, or if the frame doesn't have any scroll bars, this is nil. */ | |
3a45383a | 159 | Lisp_Object INTERNAL_FIELD (vertical_scroll_bar); |
20a558dc | 160 | |
f43dd834 GM |
161 | /* Width of left and right marginal areas. A value of nil means |
162 | no margin. */ | |
3a45383a DA |
163 | Lisp_Object INTERNAL_FIELD (left_margin_cols); |
164 | Lisp_Object INTERNAL_FIELD (right_margin_cols); | |
6000501b KS |
165 | |
166 | /* Width of left and right fringes. | |
167 | A value of nil or t means use frame values. */ | |
3a45383a DA |
168 | Lisp_Object INTERNAL_FIELD (left_fringe_width); |
169 | Lisp_Object INTERNAL_FIELD (right_fringe_width); | |
6000501b KS |
170 | |
171 | /* Pixel width of scroll bars. | |
172 | A value of nil or t means use frame values. */ | |
3a45383a | 173 | Lisp_Object INTERNAL_FIELD (scroll_bar_width); |
496e208e | 174 | |
6000501b KS |
175 | /* Type of vertical scroll bar. A value of nil means |
176 | no scroll bar. A value of t means use frame value. */ | |
3a45383a | 177 | Lisp_Object INTERNAL_FIELD (vertical_scroll_bar_type); |
f43dd834 | 178 | |
f43dd834 GM |
179 | /* Z - the buffer position of the last glyph in the current matrix |
180 | of W. Only valid if WINDOW_END_VALID is not nil. */ | |
3a45383a | 181 | Lisp_Object INTERNAL_FIELD (window_end_pos); |
f43dd834 GM |
182 | /* Glyph matrix row of the last glyph in the current matrix |
183 | of W. Only valid if WINDOW_END_VALID is not nil. */ | |
3a45383a | 184 | Lisp_Object INTERNAL_FIELD (window_end_vpos); |
83b2229f JB |
185 | /* t if window_end_pos is truly valid. |
186 | This is nil if nontrivial redisplay is preempted | |
44fa5b1e JB |
187 | since in that case the frame image that window_end_pos |
188 | did not get onto the frame. */ | |
3a45383a | 189 | Lisp_Object INTERNAL_FIELD (window_end_valid); |
496e208e | 190 | |
83b2229f JB |
191 | /* Display-table to use for displaying chars in this window. |
192 | Nil means use the buffer's own display-table. */ | |
3a45383a | 193 | Lisp_Object INTERNAL_FIELD (display_table); |
496e208e | 194 | |
c98ff5dd DA |
195 | /* Non-nil usually means window is marked as dedicated. |
196 | Note Lisp code may set this to something beyond Qnil | |
197 | and Qt, so bitfield can't be used here. */ | |
3a45383a | 198 | Lisp_Object INTERNAL_FIELD (dedicated); |
496e208e MR |
199 | |
200 | /* Line number and position of a line somewhere above the top of the | |
201 | screen. If this field is nil, it means we don't have a base | |
202 | line. */ | |
3a45383a | 203 | Lisp_Object INTERNAL_FIELD (base_line_number); |
e024395e RS |
204 | /* If this field is nil, it means we don't have a base line. |
205 | If it is a buffer, it means don't display the line number | |
206 | as long as the window shows that buffer. */ | |
3a45383a | 207 | Lisp_Object INTERNAL_FIELD (base_line_pos); |
496e208e | 208 | |
096855a6 RS |
209 | /* If we have highlighted the region (or any part of it), |
210 | this is the mark position that we used, as an integer. */ | |
3a45383a | 211 | Lisp_Object INTERNAL_FIELD (region_showing); |
496e208e | 212 | |
1262267a KH |
213 | /* The column number currently displayed in this window's mode line, |
214 | or nil if column numbers are not being displayed. */ | |
3a45383a | 215 | Lisp_Object INTERNAL_FIELD (column_number_displayed); |
496e208e | 216 | |
a3bee872 RS |
217 | /* If redisplay in this window goes beyond this buffer position, |
218 | must run the redisplay-end-trigger-hook. */ | |
3a45383a | 219 | Lisp_Object INTERNAL_FIELD (redisplay_end_trigger); |
177c0ea7 | 220 | |
b6f67890 | 221 | /* t means this window's child windows are not (re-)combined. */ |
3a45383a | 222 | Lisp_Object INTERNAL_FIELD (combination_limit); |
496e208e MR |
223 | |
224 | /* Alist of <buffer, window-start, window-point> triples listing | |
225 | buffers previously shown in this window. */ | |
3a45383a | 226 | Lisp_Object INTERNAL_FIELD (prev_buffers); |
496e208e MR |
227 | |
228 | /* List of buffers re-shown in this window. */ | |
3a45383a | 229 | Lisp_Object INTERNAL_FIELD (next_buffers); |
496e208e | 230 | |
e1dbe924 | 231 | /* An alist with parameters. */ |
3a45383a | 232 | Lisp_Object INTERNAL_FIELD (window_parameters); |
e6841c3b | 233 | |
f43dd834 GM |
234 | /* No Lisp data may follow below this point without changing |
235 | mark_object in alloc.c. The member current_matrix must be the | |
236 | first non-Lisp member. */ | |
237 | ||
238 | /* Glyph matrices. */ | |
239 | struct glyph_matrix *current_matrix; | |
240 | struct glyph_matrix *desired_matrix; | |
241 | ||
45942c7d DA |
242 | /* Number saying how recently window was selected. */ |
243 | int use_time; | |
244 | ||
245 | /* Unique number of window assigned when it was created. */ | |
246 | int sequence_number; | |
247 | ||
80b00b08 | 248 | /* Number of columns display within the window is scrolled to the left. */ |
ea2ac797 | 249 | ptrdiff_t hscroll; |
80b00b08 DA |
250 | |
251 | /* Minimum hscroll for automatic hscrolling. This is the value | |
252 | the user has set, by set-window-hscroll for example. */ | |
ea2ac797 | 253 | ptrdiff_t min_hscroll; |
80b00b08 DA |
254 | |
255 | /* Displayed buffer's text modification events counter as of last time | |
256 | display completed. */ | |
257 | EMACS_INT last_modified; | |
258 | ||
259 | /* Displayed buffer's overlays modification events counter as of last | |
260 | complete update. */ | |
261 | EMACS_INT last_overlay_modified; | |
262 | ||
263 | /* Value of point at that time. Since this is a position in a buffer, | |
264 | it should be positive. */ | |
265 | ptrdiff_t last_point; | |
266 | ||
71a0ff9a KS |
267 | /* Scaling factor for the glyph_matrix size calculation in this window. |
268 | Used if window contains many small images or uses proportional fonts, | |
269 | as the normal may yield a matrix which is too small. */ | |
270 | int nrows_scale_factor, ncols_scale_factor; | |
271 | ||
f43dd834 GM |
272 | /* Cursor position as of last update that completed without |
273 | pause. This is the position of last_point. */ | |
274 | struct cursor_pos last_cursor; | |
275 | ||
276 | /* Intended cursor position. This is a position within the | |
277 | glyph matrix. */ | |
278 | struct cursor_pos cursor; | |
177c0ea7 | 279 | |
f43dd834 GM |
280 | /* Where the cursor actually is. */ |
281 | struct cursor_pos phys_cursor; | |
177c0ea7 JB |
282 | |
283 | /* Cursor type and width of last cursor drawn on the window. | |
7e913f91 KS |
284 | Used for X and w32 frames; -1 initially. */ |
285 | int phys_cursor_type, phys_cursor_width; | |
f43dd834 GM |
286 | |
287 | /* This is handy for undrawing the cursor. */ | |
288 | int phys_cursor_ascent, phys_cursor_height; | |
177c0ea7 | 289 | |
c98ff5dd DA |
290 | /* Non-zero if this window is a minibuffer window. */ |
291 | unsigned mini : 1; | |
292 | ||
293 | /* Non-zero means must regenerate mode line of this window */ | |
294 | unsigned update_mode_line : 1; | |
295 | ||
296 | /* Non-nil if the buffer was "modified" when the window | |
297 | was last updated. */ | |
298 | unsigned last_had_star : 1; | |
299 | ||
300 | /* Non-zero means current value of `start' | |
301 | was the beginning of a line when it was chosen. */ | |
302 | unsigned start_at_line_beg : 1; | |
303 | ||
304 | /* Non-zero means next redisplay must use the value of start | |
305 | set up for it in advance. Set by scrolling commands. */ | |
306 | unsigned force_start : 1; | |
307 | ||
308 | /* Non-zero means we have explicitly changed the value of start, | |
309 | but that the next redisplay is not obliged to use the new value. | |
310 | This is used in Fdelete_other_windows to force a call to | |
311 | Vwindow_scroll_functions; also by Frecenter with argument. */ | |
312 | unsigned optional_new_start : 1; | |
313 | ||
f43dd834 GM |
314 | /* Non-zero means the cursor is currently displayed. This can be |
315 | set to zero by functions overpainting the cursor image. */ | |
316 | unsigned phys_cursor_on_p : 1; | |
317 | ||
318 | /* 0 means cursor is logically on, 1 means it's off. Used for | |
319 | blinking cursor. */ | |
320 | unsigned cursor_off_p : 1; | |
321 | ||
322 | /* Value of cursor_off_p as of the last redisplay. */ | |
323 | unsigned last_cursor_off_p : 1; | |
324 | ||
325 | /* 1 means desired matrix has been build and window must be | |
326 | updated in update_frame. */ | |
327 | unsigned must_be_updated_p : 1; | |
328 | ||
329 | /* Flag indicating that this window is not a real one. | |
330 | Currently only used for menu bar windows of frames. */ | |
331 | unsigned pseudo_window_p : 1; | |
332 | ||
91a47a68 DN |
333 | /* 1 means the window start of this window is frozen and may not |
334 | be changed during redisplay. If point is not in the window, | |
335 | accept that. */ | |
336 | unsigned frozen_window_start_p : 1; | |
337 | ||
2af3565e DA |
338 | /* Non-zero means fringes are drawn outside display margins. |
339 | Otherwise draw them between margin areas and text. */ | |
340 | unsigned fringes_outside_margins : 1; | |
341 | ||
f43dd834 GM |
342 | /* Amount by which lines of this window are scrolled in |
343 | y-direction (smooth scrolling). */ | |
344 | int vscroll; | |
177c0ea7 | 345 | |
2af3565e DA |
346 | /* Z_BYTE - the buffer position of the last glyph in the current matrix of W. |
347 | Should be nonnegative, and only valid if window_end_valid is not nil. */ | |
348 | ptrdiff_t window_end_bytepos; | |
f43dd834 | 349 | }; |
83b2229f JB |
350 | |
351 | /* 1 if W is a minibuffer window. */ | |
352 | ||
c98ff5dd | 353 | #define MINI_WINDOW_P(W) ((W)->mini) |
83b2229f | 354 | |
6000501b KS |
355 | /* General window layout: |
356 | ||
357 | LEFT_EDGE_COL RIGHT_EDGE_COL | |
358 | | | | |
359 | | | | |
360 | | BOX_LEFT_EDGE_COL | | |
361 | | | BOX_RIGHT_EDGE_COL | | |
362 | | | | | | |
363 | v v v v | |
364 | <-><-><---><-----------><---><-><-> | |
365 | ^ ^ ^ ^ ^ ^ ^ | |
366 | | | | | | | | | |
367 | | | | | | | +-- RIGHT_SCROLL_BAR_COLS | |
368 | | | | | | +----- RIGHT_FRINGE_WIDTH | |
369 | | | | | +--------- RIGHT_MARGIN_COLS | |
370 | | | | | | |
371 | | | | +------------------ TEXT_AREA_COLS | |
372 | | | | | |
373 | | | +--------------------------- LEFT_MARGIN_COLS | |
374 | | +------------------------------- LEFT_FRINGE_WIDTH | |
375 | +---------------------------------- LEFT_SCROLL_BAR_COLS | |
754dc3d8 | 376 | |
6000501b KS |
377 | */ |
378 | ||
379 | ||
380 | /* A handy macro. */ | |
381 | ||
382 | #define WINDOW_XFRAME(W) \ | |
383 | (XFRAME (WINDOW_FRAME ((W)))) | |
384 | ||
385 | /* Return the canonical column width of the frame of window W. */ | |
386 | ||
387 | #define WINDOW_FRAME_COLUMN_WIDTH(W) \ | |
388 | (FRAME_COLUMN_WIDTH (WINDOW_XFRAME ((W)))) | |
389 | ||
390 | /* Return the canonical column width of the frame of window W. */ | |
391 | ||
392 | #define WINDOW_FRAME_LINE_HEIGHT(W) \ | |
393 | (FRAME_LINE_HEIGHT (WINDOW_XFRAME ((W)))) | |
394 | ||
92f774f3 | 395 | /* Return the width of window W in canonical column units. |
6000501b | 396 | This includes scroll bars and fringes. */ |
8516ba9a | 397 | |
6000501b | 398 | #define WINDOW_TOTAL_COLS(W) \ |
3a45383a | 399 | (XFASTINT (WVAR (W, total_cols))) |
6000501b | 400 | |
92f774f3 | 401 | /* Return the height of window W in canonical line units. |
6000501b KS |
402 | This includes header and mode lines, if any. */ |
403 | ||
404 | #define WINDOW_TOTAL_LINES(W) \ | |
3a45383a | 405 | (XFASTINT (WVAR (W, total_lines))) |
6000501b | 406 | |
6000501b KS |
407 | /* Return the total pixel width of window W. */ |
408 | ||
409 | #define WINDOW_TOTAL_WIDTH(W) \ | |
410 | (WINDOW_TOTAL_COLS (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
411 | ||
412 | /* Return the total pixel height of window W. */ | |
413 | ||
414 | #define WINDOW_TOTAL_HEIGHT(W) \ | |
415 | (WINDOW_TOTAL_LINES (W) * WINDOW_FRAME_LINE_HEIGHT (W)) | |
416 | ||
496e208e MR |
417 | /* For HORFLAG non-zero the total number of columns of window W. Otherwise |
418 | the total number of lines of W. */ | |
419 | ||
420 | #define WINDOW_TOTAL_SIZE(w, horflag) \ | |
421 | (horflag ? WINDOW_TOTAL_COLS (w) : WINDOW_TOTAL_LINES (w)) | |
422 | ||
423 | /* The smallest acceptable dimensions for a window. Anything smaller | |
424 | might crash Emacs. */ | |
425 | ||
426 | #define MIN_SAFE_WINDOW_WIDTH (2) | |
427 | #define MIN_SAFE_WINDOW_HEIGHT (1) | |
6000501b KS |
428 | |
429 | /* Return the canonical frame column at which window W starts. | |
430 | This includes a left-hand scroll bar, if any. */ | |
431 | ||
432 | #define WINDOW_LEFT_EDGE_COL(W) \ | |
3a45383a | 433 | (XFASTINT (WVAR (W, left_col))) |
6000501b KS |
434 | |
435 | /* Return the canonical frame column before which window W ends. | |
8516ba9a RS |
436 | This includes a right-hand scroll bar, if any. */ |
437 | ||
6000501b KS |
438 | #define WINDOW_RIGHT_EDGE_COL(W) \ |
439 | (WINDOW_LEFT_EDGE_COL (W) + WINDOW_TOTAL_COLS (W)) | |
8516ba9a | 440 | |
6000501b KS |
441 | /* Return the canonical frame line at which window W starts. |
442 | This includes a header line, if any. */ | |
443 | ||
444 | #define WINDOW_TOP_EDGE_LINE(W) \ | |
3a45383a | 445 | (XFASTINT (WVAR (W, top_line))) |
6000501b KS |
446 | |
447 | /* Return the canonical frame line before which window W ends. | |
448 | This includes a mode line, if any. */ | |
449 | ||
450 | #define WINDOW_BOTTOM_EDGE_LINE(W) \ | |
451 | (WINDOW_TOP_EDGE_LINE (W) + WINDOW_TOTAL_LINES (W)) | |
452 | ||
453 | ||
454 | /* Return the frame x-position at which window W starts. | |
455 | This includes a left-hand scroll bar, if any. */ | |
456 | ||
457 | #define WINDOW_LEFT_EDGE_X(W) \ | |
458 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
459 | + WINDOW_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
460 | ||
461 | /* Return the frame x- position before which window W ends. | |
462 | This includes a right-hand scroll bar, if any. */ | |
463 | ||
464 | #define WINDOW_RIGHT_EDGE_X(W) \ | |
465 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
466 | + WINDOW_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
467 | ||
4b00d3b1 YM |
468 | /* 1 if W is a menu bar window. */ |
469 | ||
470 | #define WINDOW_MENU_BAR_P(W) \ | |
e34f7f79 DA |
471 | (WINDOWP (FVAR (WINDOW_XFRAME (W), menu_bar_window)) \ |
472 | && (W) == XWINDOW (FVAR (WINDOW_XFRAME (W), menu_bar_window))) | |
4b00d3b1 YM |
473 | |
474 | /* 1 if W is a tool bar window. */ | |
475 | ||
476 | #define WINDOW_TOOL_BAR_P(W) \ | |
e34f7f79 DA |
477 | (WINDOWP (FVAR (WINDOW_XFRAME (W), tool_bar_window)) \ |
478 | && (W) == XWINDOW (FVAR (WINDOW_XFRAME (W), tool_bar_window))) | |
4b00d3b1 | 479 | |
6000501b KS |
480 | /* Return the frame y-position at which window W starts. |
481 | This includes a header line, if any. */ | |
482 | ||
483 | #define WINDOW_TOP_EDGE_Y(W) \ | |
4b00d3b1 YM |
484 | (((WINDOW_MENU_BAR_P (W) || WINDOW_TOOL_BAR_P (W)) \ |
485 | ? 0 : FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W))) \ | |
6000501b KS |
486 | + WINDOW_TOP_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W)) |
487 | ||
488 | /* Return the frame y-position before which window W ends. | |
489 | This includes a mode line, if any. */ | |
490 | ||
491 | #define WINDOW_BOTTOM_EDGE_Y(W) \ | |
4b00d3b1 YM |
492 | (((WINDOW_MENU_BAR_P (W) || WINDOW_TOOL_BAR_P (W)) \ |
493 | ? 0 : FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W))) \ | |
6000501b | 494 | + WINDOW_BOTTOM_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W)) |
14a65ffe | 495 | |
8516ba9a | 496 | |
177c0ea7 | 497 | /* 1 if window W takes up the full width of its frame. */ |
8516ba9a RS |
498 | |
499 | #define WINDOW_FULL_WIDTH_P(W) \ | |
6000501b KS |
500 | (WINDOW_TOTAL_COLS (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W))) |
501 | ||
502 | /* 1 if window W's has no other windows to its left in its frame. */ | |
503 | ||
504 | #define WINDOW_LEFTMOST_P(W) \ | |
505 | (WINDOW_LEFT_EDGE_COL (W) == 0) | |
8516ba9a | 506 | |
177c0ea7 | 507 | /* 1 if window W's has no other windows to its right in its frame. */ |
8516ba9a RS |
508 | |
509 | #define WINDOW_RIGHTMOST_P(W) \ | |
6000501b KS |
510 | (WINDOW_RIGHT_EDGE_COL (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W))) |
511 | ||
512 | ||
513 | /* Return the frame column at which the text (or left fringe) in | |
514 | window W starts. This is different from the `LEFT_EDGE' because it | |
515 | does not include a left-hand scroll bar if any. */ | |
516 | ||
517 | #define WINDOW_BOX_LEFT_EDGE_COL(W) \ | |
518 | (WINDOW_LEFT_EDGE_COL (W) \ | |
519 | + WINDOW_LEFT_SCROLL_BAR_COLS (W)) | |
520 | ||
521 | /* Return the window column before which the text in window W ends. | |
522 | This is different from WINDOW_RIGHT_EDGE_COL because it does not | |
523 | include a scroll bar or window-separating line on the right edge. */ | |
524 | ||
525 | #define WINDOW_BOX_RIGHT_EDGE_COL(W) \ | |
526 | (WINDOW_RIGHT_EDGE_COL (W) \ | |
527 | - WINDOW_RIGHT_SCROLL_BAR_COLS (W)) | |
528 | ||
529 | ||
530 | /* Return the frame position at which the text (or left fringe) in | |
531 | window W starts. This is different from the `LEFT_EDGE' because it | |
532 | does not include a left-hand scroll bar if any. */ | |
533 | ||
534 | #define WINDOW_BOX_LEFT_EDGE_X(W) \ | |
535 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
536 | + WINDOW_BOX_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
537 | ||
538 | /* Return the window column before which the text in window W ends. | |
539 | This is different from WINDOW_RIGHT_EDGE_COL because it does not | |
540 | include a scroll bar or window-separating line on the right edge. */ | |
541 | ||
542 | #define WINDOW_BOX_RIGHT_EDGE_X(W) \ | |
543 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
544 | + WINDOW_BOX_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
545 | ||
546 | ||
547 | /* Width of left margin area in columns. */ | |
548 | ||
549 | #define WINDOW_LEFT_MARGIN_COLS(W) \ | |
3a45383a | 550 | (NILP (WVAR (W, left_margin_cols)) \ |
6000501b | 551 | ? 0 \ |
3a45383a | 552 | : XINT (WVAR (W, left_margin_cols))) |
6000501b KS |
553 | |
554 | /* Width of right marginal area in columns. */ | |
555 | ||
556 | #define WINDOW_RIGHT_MARGIN_COLS(W) \ | |
3a45383a | 557 | (NILP (WVAR (W, right_margin_cols)) \ |
6000501b | 558 | ? 0 \ |
3a45383a | 559 | : XINT (WVAR (W, right_margin_cols))) |
6000501b KS |
560 | |
561 | /* Width of left margin area in pixels. */ | |
562 | ||
563 | #define WINDOW_LEFT_MARGIN_WIDTH(W) \ | |
3a45383a | 564 | (NILP (WVAR (W, left_margin_cols)) \ |
6000501b | 565 | ? 0 \ |
3a45383a | 566 | : (XINT (WVAR (W, left_margin_cols)) \ |
6000501b KS |
567 | * WINDOW_FRAME_COLUMN_WIDTH (W))) |
568 | ||
569 | /* Width of right marginal area in pixels. */ | |
570 | ||
571 | #define WINDOW_RIGHT_MARGIN_WIDTH(W) \ | |
3a45383a | 572 | (NILP (WVAR (W, right_margin_cols)) \ |
6000501b | 573 | ? 0 \ |
3a45383a | 574 | : (XINT (WVAR (W, right_margin_cols)) \ |
6000501b KS |
575 | * WINDOW_FRAME_COLUMN_WIDTH (W))) |
576 | ||
577 | /* Total width of fringes reserved for drawing truncation bitmaps, | |
578 | continuation bitmaps and alike. The width is in canonical char | |
579 | units of the frame. This must currently be the case because window | |
580 | sizes aren't pixel values. If it weren't the case, we wouldn't be | |
581 | able to split windows horizontally nicely. */ | |
582 | ||
583 | #define WINDOW_FRINGE_COLS(W) \ | |
3a45383a DA |
584 | ((INTEGERP (WVAR (W, left_fringe_width)) \ |
585 | || INTEGERP (WVAR (W, right_fringe_width))) \ | |
6000501b KS |
586 | ? ((WINDOW_LEFT_FRINGE_WIDTH (W) \ |
587 | + WINDOW_RIGHT_FRINGE_WIDTH (W) \ | |
588 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
589 | / WINDOW_FRAME_COLUMN_WIDTH (W)) \ | |
590 | : FRAME_FRINGE_COLS (WINDOW_XFRAME (W))) | |
591 | ||
01aa0b2e RS |
592 | /* Column-width of the left and right fringe. */ |
593 | ||
594 | #define WINDOW_LEFT_FRINGE_COLS(W) \ | |
595 | ((WINDOW_LEFT_FRINGE_WIDTH ((W)) \ | |
596 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
597 | / WINDOW_FRAME_COLUMN_WIDTH (W)) | |
598 | ||
599 | #define WINDOW_RIGHT_FRINGE_COLS(W) \ | |
600 | ((WINDOW_RIGHT_FRINGE_WIDTH ((W)) \ | |
601 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
602 | / WINDOW_FRAME_COLUMN_WIDTH (W)) | |
603 | ||
6000501b KS |
604 | /* Pixel-width of the left and right fringe. */ |
605 | ||
606 | #define WINDOW_LEFT_FRINGE_WIDTH(W) \ | |
3a45383a DA |
607 | (INTEGERP (WVAR (W, left_fringe_width)) \ |
608 | ? XFASTINT (WVAR (W, left_fringe_width)) \ | |
6000501b KS |
609 | : FRAME_LEFT_FRINGE_WIDTH (WINDOW_XFRAME (W))) |
610 | ||
611 | #define WINDOW_RIGHT_FRINGE_WIDTH(W) \ | |
3a45383a DA |
612 | (INTEGERP (WVAR (W, right_fringe_width)) \ |
613 | ? XFASTINT (WVAR (W, right_fringe_width)) \ | |
6000501b KS |
614 | : FRAME_RIGHT_FRINGE_WIDTH (WINDOW_XFRAME (W))) |
615 | ||
616 | /* Total width of fringes in pixels. */ | |
617 | ||
618 | #define WINDOW_TOTAL_FRINGE_WIDTH(W) \ | |
619 | (WINDOW_LEFT_FRINGE_WIDTH (W) + WINDOW_RIGHT_FRINGE_WIDTH (W)) | |
620 | ||
621 | /* Are fringes outside display margins in window W. */ | |
622 | ||
623 | #define WINDOW_HAS_FRINGES_OUTSIDE_MARGINS(W) \ | |
2af3565e | 624 | ((W)->fringes_outside_margins) |
6000501b KS |
625 | |
626 | /* Say whether scroll bars are currently enabled for window W, | |
627 | and which side they are on. */ | |
628 | ||
629 | #define WINDOW_VERTICAL_SCROLL_BAR_TYPE(w) \ | |
3a45383a | 630 | (EQ (WVAR (w, vertical_scroll_bar_type), Qt) \ |
6000501b | 631 | ? FRAME_VERTICAL_SCROLL_BAR_TYPE (WINDOW_XFRAME (w)) \ |
3a45383a | 632 | : EQ (WVAR (w, vertical_scroll_bar_type), Qleft) \ |
6000501b | 633 | ? vertical_scroll_bar_left \ |
3a45383a | 634 | : EQ (WVAR (w, vertical_scroll_bar_type), Qright) \ |
6000501b KS |
635 | ? vertical_scroll_bar_right \ |
636 | : vertical_scroll_bar_none) \ | |
637 | ||
638 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR(w) \ | |
3a45383a | 639 | (EQ (WVAR (w, vertical_scroll_bar_type), Qt) \ |
6000501b | 640 | ? FRAME_HAS_VERTICAL_SCROLL_BARS (WINDOW_XFRAME (w)) \ |
3a45383a | 641 | : !NILP (WVAR (w, vertical_scroll_bar_type))) |
6000501b KS |
642 | |
643 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT(w) \ | |
3a45383a | 644 | (EQ (WVAR (w, vertical_scroll_bar_type), Qt) \ |
6000501b | 645 | ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (WINDOW_XFRAME (w)) \ |
3a45383a | 646 | : EQ (WVAR (w, vertical_scroll_bar_type), Qleft)) |
6000501b KS |
647 | |
648 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT(w) \ | |
3a45383a | 649 | (EQ (WVAR (w, vertical_scroll_bar_type), Qt) \ |
6000501b | 650 | ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (WINDOW_XFRAME (w))\ |
3a45383a | 651 | : EQ (WVAR (w, vertical_scroll_bar_type), Qright)) |
6000501b KS |
652 | |
653 | /* Width that a scroll bar in window W should have, if there is one. | |
654 | Measured in pixels. If scroll bars are turned off, this is still | |
655 | nonzero. */ | |
656 | ||
657 | #define WINDOW_CONFIG_SCROLL_BAR_WIDTH(w) \ | |
3a45383a DA |
658 | (INTEGERP (WVAR (w, scroll_bar_width)) \ |
659 | ? XFASTINT (WVAR (w, scroll_bar_width)) \ | |
6000501b KS |
660 | : FRAME_CONFIG_SCROLL_BAR_WIDTH (WINDOW_XFRAME (w))) |
661 | ||
662 | /* Width that a scroll bar in window W should have, if there is one. | |
663 | Measured in columns (characters). If scroll bars are turned off, | |
664 | this is still nonzero. */ | |
665 | ||
666 | #define WINDOW_CONFIG_SCROLL_BAR_COLS(w) \ | |
3a45383a DA |
667 | (INTEGERP (WVAR (w, scroll_bar_width)) \ |
668 | ? ((XFASTINT (WVAR (w, scroll_bar_width)) \ | |
6000501b KS |
669 | + WINDOW_FRAME_COLUMN_WIDTH (w) - 1) \ |
670 | / WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
671 | : FRAME_CONFIG_SCROLL_BAR_COLS (WINDOW_XFRAME (w))) | |
672 | ||
673 | /* Width of a scroll bar in window W, measured in columns (characters), | |
674 | but only if scroll bars are on the left. If scroll bars are on | |
675 | the right in this frame, or there are no scroll bars, value is 0. */ | |
676 | ||
677 | #define WINDOW_LEFT_SCROLL_BAR_COLS(w) \ | |
678 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \ | |
679 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w)) \ | |
680 | : 0) | |
681 | ||
682 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
683 | ||
684 | #define WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH(w) \ | |
685 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \ | |
686 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
687 | : 0) | |
688 | ||
689 | /* Width of a scroll bar in window W, measured in columns (characters), | |
690 | but only if scroll bars are on the right. If scroll bars are on | |
691 | the left in this frame, or there are no scroll bars, value is 0. */ | |
692 | ||
693 | #define WINDOW_RIGHT_SCROLL_BAR_COLS(w) \ | |
694 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \ | |
695 | ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \ | |
696 | : 0) | |
697 | ||
698 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
699 | ||
700 | #define WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH(w) \ | |
701 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \ | |
702 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
703 | : 0) | |
704 | ||
705 | ||
706 | /* Actual width of a scroll bar in window W, measured in columns. */ | |
707 | ||
708 | #define WINDOW_SCROLL_BAR_COLS(w) \ | |
709 | (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \ | |
710 | ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \ | |
711 | : 0) | |
712 | ||
713 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
714 | ||
715 | #define WINDOW_SCROLL_BAR_AREA_WIDTH(w) \ | |
716 | (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \ | |
717 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
718 | : 0) | |
719 | ||
720 | ||
721 | /* Return the frame position where the scroll bar of window W starts. */ | |
722 | ||
723 | #define WINDOW_SCROLL_BAR_AREA_X(W) \ | |
724 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (W) \ | |
725 | ? WINDOW_BOX_RIGHT_EDGE_X (W) \ | |
726 | : WINDOW_LEFT_EDGE_X (W)) | |
727 | ||
728 | ||
01aa0b2e RS |
729 | /* Height in pixels, and in lines, of the mode line. |
730 | May be zero if W doesn't have a mode line. */ | |
6000501b KS |
731 | |
732 | #define WINDOW_MODE_LINE_HEIGHT(W) \ | |
733 | (WINDOW_WANTS_MODELINE_P ((W)) \ | |
734 | ? CURRENT_MODE_LINE_HEIGHT (W) \ | |
735 | : 0) | |
736 | ||
01aa0b2e RS |
737 | #define WINDOW_MODE_LINE_LINES(W) \ |
738 | (!! WINDOW_WANTS_MODELINE_P ((W))) | |
739 | ||
740 | /* Height in pixels, and in lines, of the header line. | |
741 | Zero if W doesn't have a header line. */ | |
6000501b KS |
742 | |
743 | #define WINDOW_HEADER_LINE_HEIGHT(W) \ | |
744 | (WINDOW_WANTS_HEADER_LINE_P ((W)) \ | |
745 | ? CURRENT_HEADER_LINE_HEIGHT (W) \ | |
746 | : 0) | |
747 | ||
01aa0b2e RS |
748 | #define WINDOW_HEADER_LINE_LINES(W) \ |
749 | (!! WINDOW_WANTS_HEADER_LINE_P ((W))) | |
750 | ||
6000501b KS |
751 | /* Pixel height of window W without mode line. */ |
752 | ||
753 | #define WINDOW_BOX_HEIGHT_NO_MODE_LINE(W) \ | |
754 | (WINDOW_TOTAL_HEIGHT ((W)) \ | |
755 | - WINDOW_MODE_LINE_HEIGHT ((W))) | |
756 | ||
757 | /* Pixel height of window W without mode and header line. */ | |
758 | ||
759 | #define WINDOW_BOX_TEXT_HEIGHT(W) \ | |
760 | (WINDOW_TOTAL_HEIGHT ((W)) \ | |
761 | - WINDOW_MODE_LINE_HEIGHT ((W)) \ | |
762 | - WINDOW_HEADER_LINE_HEIGHT ((W))) | |
763 | ||
764 | ||
765 | /* Convert window W relative pixel X to frame pixel coordinates. */ | |
766 | ||
767 | #define WINDOW_TO_FRAME_PIXEL_X(W, X) \ | |
768 | ((X) + WINDOW_BOX_LEFT_EDGE_X ((W))) | |
769 | ||
770 | /* Convert window W relative pixel Y to frame pixel coordinates. */ | |
771 | ||
772 | #define WINDOW_TO_FRAME_PIXEL_Y(W, Y) \ | |
773 | ((Y) + WINDOW_TOP_EDGE_Y ((W))) | |
774 | ||
775 | /* Convert frame relative pixel X to window relative pixel X. */ | |
776 | ||
777 | #define FRAME_TO_WINDOW_PIXEL_X(W, X) \ | |
778 | ((X) - WINDOW_BOX_LEFT_EDGE_X ((W))) | |
779 | ||
780 | /* Convert frame relative pixel Y to window relative pixel Y. */ | |
781 | ||
782 | #define FRAME_TO_WINDOW_PIXEL_Y(W, Y) \ | |
783 | ((Y) - WINDOW_TOP_EDGE_Y ((W))) | |
784 | ||
785 | /* Convert a text area relative x-position in window W to frame X | |
786 | pixel coordinates. */ | |
177c0ea7 | 787 | |
6000501b KS |
788 | #define WINDOW_TEXT_TO_FRAME_PIXEL_X(W, X) \ |
789 | (window_box_left ((W), TEXT_AREA) + (X)) | |
f43dd834 | 790 | |
83b2229f JB |
791 | /* This is the window in which the terminal's cursor should |
792 | be left when nothing is being done with it. This must | |
793 | always be a leaf window, and its buffer is selected by | |
794 | the top level editing loop at the end of each command. | |
795 | ||
796 | This value is always the same as | |
44fa5b1e | 797 | FRAME_SELECTED_WINDOW (selected_frame). */ |
83b2229f JB |
798 | |
799 | extern Lisp_Object selected_window; | |
800 | ||
801 | /* This is a time stamp for window selection, so we can find the least | |
802 | recently used window. Its only users are Fselect_window, | |
44fa5b1e | 803 | init_window_once, and make_frame. */ |
83b2229f JB |
804 | |
805 | extern int window_select_count; | |
806 | ||
44fa5b1e | 807 | /* The minibuffer window of the selected frame. |
83b2229f | 808 | Note that you cannot test for minibufferness of an arbitrary window |
fbfed6f0 | 809 | by comparing against this; use the MINI_WINDOW_P macro instead. */ |
83b2229f JB |
810 | |
811 | extern Lisp_Object minibuf_window; | |
812 | ||
76e316e0 KS |
813 | /* Non-nil means it is the window whose mode line should be |
814 | shown as the selected window when the minibuffer is selected. */ | |
815 | ||
5705966b | 816 | extern Lisp_Object minibuf_selected_window; |
76e316e0 | 817 | |
83b2229f | 818 | /* Window that the mouse is over (nil if no mouse support). */ |
f43dd834 | 819 | |
83b2229f JB |
820 | extern Lisp_Object Vmouse_window; |
821 | ||
822 | /* Last mouse-click event (nil if no mouse support). */ | |
f43dd834 | 823 | |
83b2229f JB |
824 | extern Lisp_Object Vmouse_event; |
825 | ||
383e0970 | 826 | extern Lisp_Object make_window (void); |
383e0970 | 827 | extern Lisp_Object window_from_coordinates (struct frame *, int, int, |
9173a8fb | 828 | enum window_part *, int); |
9397e56f | 829 | extern void resize_frame_windows (struct frame *, int, int); |
be7f5545 | 830 | extern void delete_all_child_windows (Lisp_Object); |
383e0970 | 831 | extern void freeze_window_starts (struct frame *, int); |
383e0970 J |
832 | extern void grow_mini_window (struct window *, int); |
833 | extern void shrink_mini_window (struct window *); | |
9173a8fb | 834 | extern int window_relative_x_coord (struct window *, enum window_part, int); |
57209cba | 835 | |
ef264c42 | 836 | void run_window_configuration_change_hook (struct frame *f); |
83b2229f | 837 | |
f43dd834 GM |
838 | /* Make WINDOW display BUFFER as its contents. RUN_HOOKS_P non-zero |
839 | means it's allowed to run hooks. See make_frame for a case where | |
840 | it's not allowed. */ | |
841 | ||
383e0970 J |
842 | void set_window_buffer (Lisp_Object window, Lisp_Object buffer, |
843 | int run_hooks_p, int keep_margins_p); | |
f43dd834 | 844 | |
f43dd834 GM |
845 | /* This is the window where the echo area message was displayed. It |
846 | is always a minibuffer window, but it may not be the same window | |
847 | currently active as a minibuffer. */ | |
848 | ||
c0acc112 RS |
849 | extern Lisp_Object echo_area_window; |
850 | ||
83b2229f | 851 | /* Depth in recursive edits. */ |
f43dd834 | 852 | |
62f19c19 | 853 | extern EMACS_INT command_loop_level; |
83b2229f JB |
854 | |
855 | /* Depth in minibuffer invocations. */ | |
f43dd834 | 856 | |
62f19c19 | 857 | extern EMACS_INT minibuf_level; |
83b2229f | 858 | |
e0f24100 | 859 | /* true if we should redraw the mode lines on the next redisplay. */ |
f43dd834 | 860 | |
83b2229f JB |
861 | extern int update_mode_lines; |
862 | ||
f43dd834 GM |
863 | /* Nonzero if window sizes or contents have changed since last |
864 | redisplay that finished */ | |
865 | ||
83b2229f JB |
866 | extern int windows_or_buffers_changed; |
867 | ||
d1a0ea0a RS |
868 | /* Nonzero means a frame's cursor type has been changed. */ |
869 | ||
870 | extern int cursor_type_changed; | |
871 | ||
f43dd834 GM |
872 | /* Number of windows displaying the selected buffer. Normally this is |
873 | 1, but it can be more. */ | |
874 | ||
83b2229f | 875 | extern int buffer_shared; |
fbfed6f0 JB |
876 | |
877 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the | |
878 | minimum allowable size. */ | |
f43dd834 | 879 | |
383e0970 | 880 | extern void check_frame_size (struct frame *frame, int *rows, int *cols); |
f43dd834 GM |
881 | |
882 | /* Return a pointer to the glyph W's physical cursor is on. Value is | |
c80e3b4a | 883 | null if W's current matrix is invalid, so that no meaningful glyph |
f43dd834 GM |
884 | can be returned. */ |
885 | ||
383e0970 | 886 | struct glyph *get_phys_cursor_glyph (struct window *w); |
f43dd834 | 887 | |
91523be9 GM |
888 | /* Value is non-zero if WINDOW is a live window. */ |
889 | ||
890 | #define WINDOW_LIVE_P(WINDOW) \ | |
3a45383a | 891 | (WINDOWP ((WINDOW)) && !NILP (WVAR (XWINDOW ((WINDOW)), buffer))) |
91523be9 | 892 | |
9a274fbd SM |
893 | |
894 | /* These used to be in lisp.h. */ | |
895 | ||
896 | extern Lisp_Object Qwindowp, Qwindow_live_p; | |
897 | extern Lisp_Object Vwindow_list; | |
898 | ||
383e0970 | 899 | extern int compare_window_configurations (Lisp_Object, Lisp_Object, int); |
383e0970 J |
900 | extern void mark_window_cursors_off (struct window *); |
901 | extern int window_internal_height (struct window *); | |
496e208e | 902 | extern int window_body_cols (struct window *w); |
383e0970 | 903 | extern void temp_output_buffer_show (Lisp_Object); |
b6e3633c | 904 | extern void replace_buffer_in_windows (Lisp_Object); |
9397e56f | 905 | extern void replace_buffer_in_windows_safely (Lisp_Object); |
383e0970 J |
906 | extern void init_window_once (void); |
907 | extern void init_window (void); | |
908 | extern void syms_of_window (void); | |
909 | extern void keys_of_window (void); | |
910 | ||
f43dd834 | 911 | #endif /* not WINDOW_H_INCLUDED */ |