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83b2229f | 1 | /* Window definitions for GNU Emacs. |
ab422c4d PE |
2 | Copyright (C) 1985-1986, 1993, 1995, 1997-2013 Free Software |
3 | 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 | |
e8c17b81 PE |
25 | INLINE_HEADER_BEGIN |
26 | #ifndef WINDOW_INLINE | |
27 | # define WINDOW_INLINE INLINE | |
28 | #endif | |
29 | ||
83b2229f JB |
30 | /* Windows are allocated as if they were vectors, but then the |
31 | Lisp data type is changed to Lisp_Window. They are garbage | |
32 | collected along with the vectors. | |
33 | ||
34 | All windows in use are arranged into a tree, with pointers up and down. | |
35 | ||
36 | Windows that are leaves of the tree are actually displayed | |
37 | and show the contents of buffers. Windows that are not leaves | |
38 | are used for representing the way groups of leaf windows are | |
44fa5b1e | 39 | arranged on the frame. Leaf windows never become non-leaves. |
83b2229f JB |
40 | They are deleted only by calling delete-window on them (but |
41 | this can be done implicitly). Combination windows can be created | |
42 | and deleted at any time. | |
43 | ||
44 | A leaf window has a non-nil buffer field, and also | |
45 | has markers in its start and pointm fields. Non-leaf windows | |
46 | have nil in these fields. | |
47 | ||
48 | Non-leaf windows are either vertical or horizontal combinations. | |
49 | ||
44fa5b1e | 50 | A vertical combination window has children that are arranged on the frame |
83b2229f JB |
51 | one above the next. Its vchild field points to the uppermost child. |
52 | The parent field of each of the children points to the vertical | |
53 | combination window. The next field of each child points to the | |
54 | child below it, or is nil for the lowest child. The prev field | |
55 | of each child points to the child above it, or is nil for the | |
56 | highest child. | |
57 | ||
58 | A horizontal combination window has children that are side by side. | |
59 | Its hchild field points to the leftmost child. In each child | |
60 | the next field points to the child to the right and the prev field | |
61 | points to the child to the left. | |
62 | ||
63 | The children of a vertical combination window may be leaf windows | |
64 | or horizontal combination windows. The children of a horizontal | |
65 | combination window may be leaf windows or vertical combination windows. | |
66 | ||
67 | At the top of the tree are two windows which have nil as parent. | |
68 | The second of these is minibuf_window. The first one manages all | |
44fa5b1e | 69 | the frame area that is not minibuffer, and is called the root window. |
83b2229f JB |
70 | Different windows can be the root at different times; |
71 | initially the root window is a leaf window, but if more windows | |
72 | are created then that leaf window ceases to be root and a newly | |
73 | made combination window becomes root instead. | |
74 | ||
fbfed6f0 JB |
75 | In any case, on screens which have an ordinary window and a |
76 | minibuffer, prev of the minibuf window is the root window and next of | |
77 | the root window is the minibuf window. On minibufferless screens or | |
78 | minibuffer-only screens, the root window and the minibuffer window are | |
27daff1e | 79 | one and the same, so its prev and next members are nil. |
83b2229f | 80 | |
27daff1e | 81 | A dead window has its buffer, hchild, and vchild windows all nil. */ |
83b2229f | 82 | |
f43dd834 GM |
83 | struct cursor_pos |
84 | { | |
85 | /* Pixel position. These are always window relative. */ | |
86 | int x, y; | |
87 | ||
88 | /* Glyph matrix position. */ | |
89 | int hpos, vpos; | |
90 | }; | |
91 | ||
83b2229f JB |
92 | struct window |
93 | { | |
eab3844f | 94 | /* This is for Lisp; the terminal code does not refer to it. */ |
b102ceb1 | 95 | struct vectorlike_header header; |
eab3844f | 96 | |
44fa5b1e | 97 | /* The frame this window is on. */ |
d3d50620 | 98 | Lisp_Object frame; |
496e208e | 99 | |
496e208e MR |
100 | /* Following (to right or down) and preceding (to left or up) child |
101 | at same level of tree. */ | |
d3d50620 DA |
102 | Lisp_Object next; |
103 | Lisp_Object prev; | |
496e208e MR |
104 | |
105 | /* First child of this window: vchild is used if this is a vertical | |
106 | combination, hchild if this is a horizontal combination. Of the | |
107 | fields vchild, hchild and buffer, one and only one is non-nil | |
108 | unless the window is dead. */ | |
d3d50620 DA |
109 | Lisp_Object hchild; |
110 | Lisp_Object vchild; | |
496e208e MR |
111 | |
112 | /* The window this one is a child of. */ | |
d3d50620 | 113 | Lisp_Object parent; |
496e208e MR |
114 | |
115 | /* The upper left corner coordinates of this window, as integers | |
116 | relative to upper left corner of frame = 0, 0. */ | |
d3d50620 DA |
117 | Lisp_Object left_col; |
118 | Lisp_Object top_line; | |
496e208e MR |
119 | |
120 | /* The size of the window. */ | |
d3d50620 DA |
121 | Lisp_Object total_lines; |
122 | Lisp_Object total_cols; | |
496e208e MR |
123 | |
124 | /* The normal size of the window. */ | |
d3d50620 DA |
125 | Lisp_Object normal_lines; |
126 | Lisp_Object normal_cols; | |
496e208e MR |
127 | |
128 | /* New sizes of the window. */ | |
d3d50620 DA |
129 | Lisp_Object new_total; |
130 | Lisp_Object new_normal; | |
496e208e MR |
131 | |
132 | /* The buffer displayed in this window. Of the fields vchild, | |
133 | hchild and buffer, one and only one is non-nil unless the window | |
134 | is dead. */ | |
d3d50620 | 135 | Lisp_Object buffer; |
496e208e | 136 | |
6bff6497 EZ |
137 | /* A marker pointing to where in the text to start displaying. |
138 | BIDI Note: This is the _logical-order_ start, i.e. the smallest | |
139 | buffer position visible in the window, not necessarily the | |
140 | character displayed in the top left corner of the window. */ | |
d3d50620 | 141 | Lisp_Object start; |
496e208e | 142 | |
83b2229f JB |
143 | /* A marker pointing to where in the text point is in this window, |
144 | used only when the window is not selected. | |
145 | This exists so that when multiple windows show one buffer | |
146 | each one can have its own value of point. */ | |
d3d50620 | 147 | Lisp_Object pointm; |
496e208e | 148 | |
496e208e MR |
149 | /* No permanent meaning; used by save-window-excursion's |
150 | bookkeeping. */ | |
d3d50620 | 151 | Lisp_Object temslot; |
496e208e | 152 | |
a3c87d4e | 153 | /* This window's vertical scroll bar. This field is only for use |
7c299e7a | 154 | by the window-system-dependent code which implements the |
a3c87d4e JB |
155 | scroll bars; it can store anything it likes here. If this |
156 | window is newly created and we haven't displayed a scroll bar in | |
157 | it yet, or if the frame doesn't have any scroll bars, this is nil. */ | |
d3d50620 | 158 | Lisp_Object vertical_scroll_bar; |
20a558dc | 159 | |
f43dd834 GM |
160 | /* Width of left and right marginal areas. A value of nil means |
161 | no margin. */ | |
d3d50620 DA |
162 | Lisp_Object left_margin_cols; |
163 | Lisp_Object right_margin_cols; | |
6000501b KS |
164 | |
165 | /* Width of left and right fringes. | |
166 | A value of nil or t means use frame values. */ | |
d3d50620 DA |
167 | Lisp_Object left_fringe_width; |
168 | Lisp_Object right_fringe_width; | |
6000501b KS |
169 | |
170 | /* Pixel width of scroll bars. | |
171 | A value of nil or t means use frame values. */ | |
d3d50620 | 172 | Lisp_Object scroll_bar_width; |
496e208e | 173 | |
6000501b KS |
174 | /* Type of vertical scroll bar. A value of nil means |
175 | no scroll bar. A value of t means use frame value. */ | |
d3d50620 | 176 | Lisp_Object vertical_scroll_bar_type; |
f43dd834 | 177 | |
9d93ce29 DA |
178 | /* Z - the buffer position of the last glyph in the current |
179 | matrix of W. Only valid if window_end_valid is nonzero. */ | |
d3d50620 | 180 | Lisp_Object window_end_pos; |
9d93ce29 | 181 | |
f43dd834 | 182 | /* Glyph matrix row of the last glyph in the current matrix |
9d93ce29 | 183 | of W. Only valid if window_end_valid is nonzero. */ |
d3d50620 | 184 | Lisp_Object window_end_vpos; |
496e208e | 185 | |
83b2229f JB |
186 | /* Display-table to use for displaying chars in this window. |
187 | Nil means use the buffer's own display-table. */ | |
d3d50620 | 188 | Lisp_Object display_table; |
496e208e | 189 | |
c98ff5dd DA |
190 | /* Non-nil usually means window is marked as dedicated. |
191 | Note Lisp code may set this to something beyond Qnil | |
192 | and Qt, so bitfield can't be used here. */ | |
d3d50620 | 193 | Lisp_Object dedicated; |
496e208e | 194 | |
a3bee872 RS |
195 | /* If redisplay in this window goes beyond this buffer position, |
196 | must run the redisplay-end-trigger-hook. */ | |
d3d50620 | 197 | Lisp_Object redisplay_end_trigger; |
177c0ea7 | 198 | |
b6f67890 | 199 | /* t means this window's child windows are not (re-)combined. */ |
d3d50620 | 200 | Lisp_Object combination_limit; |
496e208e | 201 | |
e1dbe924 | 202 | /* An alist with parameters. */ |
d3d50620 | 203 | Lisp_Object window_parameters; |
e6841c3b | 204 | |
f43dd834 GM |
205 | /* No Lisp data may follow below this point without changing |
206 | mark_object in alloc.c. The member current_matrix must be the | |
207 | first non-Lisp member. */ | |
208 | ||
209 | /* Glyph matrices. */ | |
210 | struct glyph_matrix *current_matrix; | |
211 | struct glyph_matrix *desired_matrix; | |
212 | ||
e99f70c8 SM |
213 | /* The two Lisp_Object fields below are marked in a special way, |
214 | which is why they're placed after `current_matrix'. */ | |
215 | /* Alist of <buffer, window-start, window-point> triples listing | |
216 | buffers previously shown in this window. */ | |
217 | Lisp_Object prev_buffers; | |
218 | /* List of buffers re-shown in this window. */ | |
219 | Lisp_Object next_buffers; | |
220 | ||
45942c7d DA |
221 | /* Number saying how recently window was selected. */ |
222 | int use_time; | |
223 | ||
80b00b08 | 224 | /* Number of columns display within the window is scrolled to the left. */ |
ea2ac797 | 225 | ptrdiff_t hscroll; |
80b00b08 DA |
226 | |
227 | /* Minimum hscroll for automatic hscrolling. This is the value | |
228 | the user has set, by set-window-hscroll for example. */ | |
ea2ac797 | 229 | ptrdiff_t min_hscroll; |
80b00b08 DA |
230 | |
231 | /* Displayed buffer's text modification events counter as of last time | |
232 | display completed. */ | |
233 | EMACS_INT last_modified; | |
234 | ||
235 | /* Displayed buffer's overlays modification events counter as of last | |
236 | complete update. */ | |
237 | EMACS_INT last_overlay_modified; | |
238 | ||
239 | /* Value of point at that time. Since this is a position in a buffer, | |
1e101a4b | 240 | it should be positive. */ |
80b00b08 DA |
241 | ptrdiff_t last_point; |
242 | ||
422ff52b DA |
243 | /* Line number and position of a line somewhere above the top of the |
244 | screen. If this field is zero, it means we don't have a base line. */ | |
245 | ptrdiff_t base_line_number; | |
246 | ||
247 | /* If this field is zero, it means we don't have a base line. | |
248 | If it is -1, it means don't display the line number as long | |
249 | as the window shows its buffer. */ | |
250 | ptrdiff_t base_line_pos; | |
251 | ||
252 | /* The column number currently displayed in this window's mode | |
253 | line, or -1 if column numbers are not being displayed. */ | |
254 | ptrdiff_t column_number_displayed; | |
255 | ||
71a0ff9a KS |
256 | /* Scaling factor for the glyph_matrix size calculation in this window. |
257 | Used if window contains many small images or uses proportional fonts, | |
258 | as the normal may yield a matrix which is too small. */ | |
259 | int nrows_scale_factor, ncols_scale_factor; | |
260 | ||
f43dd834 GM |
261 | /* Cursor position as of last update that completed without |
262 | pause. This is the position of last_point. */ | |
263 | struct cursor_pos last_cursor; | |
264 | ||
265 | /* Intended cursor position. This is a position within the | |
266 | glyph matrix. */ | |
267 | struct cursor_pos cursor; | |
177c0ea7 | 268 | |
f43dd834 GM |
269 | /* Where the cursor actually is. */ |
270 | struct cursor_pos phys_cursor; | |
177c0ea7 JB |
271 | |
272 | /* Cursor type and width of last cursor drawn on the window. | |
7e913f91 KS |
273 | Used for X and w32 frames; -1 initially. */ |
274 | int phys_cursor_type, phys_cursor_width; | |
f43dd834 GM |
275 | |
276 | /* This is handy for undrawing the cursor. */ | |
277 | int phys_cursor_ascent, phys_cursor_height; | |
177c0ea7 | 278 | |
c98ff5dd DA |
279 | /* Non-zero if this window is a minibuffer window. */ |
280 | unsigned mini : 1; | |
281 | ||
1e101a4b | 282 | /* Non-zero means must regenerate mode line of this window. */ |
c98ff5dd DA |
283 | unsigned update_mode_line : 1; |
284 | ||
285 | /* Non-nil if the buffer was "modified" when the window | |
286 | was last updated. */ | |
287 | unsigned last_had_star : 1; | |
288 | ||
289 | /* Non-zero means current value of `start' | |
290 | was the beginning of a line when it was chosen. */ | |
291 | unsigned start_at_line_beg : 1; | |
292 | ||
293 | /* Non-zero means next redisplay must use the value of start | |
294 | set up for it in advance. Set by scrolling commands. */ | |
295 | unsigned force_start : 1; | |
296 | ||
297 | /* Non-zero means we have explicitly changed the value of start, | |
298 | but that the next redisplay is not obliged to use the new value. | |
299 | This is used in Fdelete_other_windows to force a call to | |
300 | Vwindow_scroll_functions; also by Frecenter with argument. */ | |
301 | unsigned optional_new_start : 1; | |
302 | ||
f43dd834 GM |
303 | /* Non-zero means the cursor is currently displayed. This can be |
304 | set to zero by functions overpainting the cursor image. */ | |
305 | unsigned phys_cursor_on_p : 1; | |
306 | ||
307 | /* 0 means cursor is logically on, 1 means it's off. Used for | |
308 | blinking cursor. */ | |
309 | unsigned cursor_off_p : 1; | |
310 | ||
311 | /* Value of cursor_off_p as of the last redisplay. */ | |
312 | unsigned last_cursor_off_p : 1; | |
313 | ||
314 | /* 1 means desired matrix has been build and window must be | |
315 | updated in update_frame. */ | |
316 | unsigned must_be_updated_p : 1; | |
317 | ||
318 | /* Flag indicating that this window is not a real one. | |
319 | Currently only used for menu bar windows of frames. */ | |
320 | unsigned pseudo_window_p : 1; | |
321 | ||
91a47a68 DN |
322 | /* 1 means the window start of this window is frozen and may not |
323 | be changed during redisplay. If point is not in the window, | |
324 | accept that. */ | |
325 | unsigned frozen_window_start_p : 1; | |
326 | ||
2af3565e DA |
327 | /* Non-zero means fringes are drawn outside display margins. |
328 | Otherwise draw them between margin areas and text. */ | |
329 | unsigned fringes_outside_margins : 1; | |
330 | ||
9d93ce29 DA |
331 | /* Nonzero if window_end_pos and window_end_vpos are truly valid. |
332 | This is zero if nontrivial redisplay is preempted since in that case | |
333 | the frame image that window_end_pos did not get onto the frame. */ | |
334 | unsigned window_end_valid : 1; | |
335 | ||
f43dd834 GM |
336 | /* Amount by which lines of this window are scrolled in |
337 | y-direction (smooth scrolling). */ | |
338 | int vscroll; | |
177c0ea7 | 339 | |
86f7c0fe | 340 | /* If we have highlighted the region (or any part of it), the mark |
33b49d71 | 341 | (region start) position; otherwise zero. */ |
86f7c0fe EZ |
342 | ptrdiff_t region_showing; |
343 | ||
9d93ce29 DA |
344 | /* Z_BYTE - buffer position of the last glyph in the current matrix of W. |
345 | Should be nonnegative, and only valid if window_end_valid is nonzero. */ | |
2af3565e | 346 | ptrdiff_t window_end_bytepos; |
f43dd834 | 347 | }; |
83b2229f | 348 | |
e8c17b81 PE |
349 | /* Most code should use these functions to set Lisp fields in struct |
350 | window. */ | |
351 | WINDOW_INLINE void | |
e8c17b81 PE |
352 | wset_frame (struct window *w, Lisp_Object val) |
353 | { | |
354 | w->frame = val; | |
355 | } | |
356 | WINDOW_INLINE void | |
357 | wset_left_col (struct window *w, Lisp_Object val) | |
358 | { | |
359 | w->left_col = val; | |
360 | } | |
361 | WINDOW_INLINE void | |
362 | wset_next (struct window *w, Lisp_Object val) | |
363 | { | |
364 | w->next = val; | |
365 | } | |
366 | WINDOW_INLINE void | |
367 | wset_prev (struct window *w, Lisp_Object val) | |
368 | { | |
369 | w->prev = val; | |
370 | } | |
371 | WINDOW_INLINE void | |
372 | wset_redisplay_end_trigger (struct window *w, Lisp_Object val) | |
373 | { | |
374 | w->redisplay_end_trigger = val; | |
375 | } | |
376 | WINDOW_INLINE void | |
377 | wset_top_line (struct window *w, Lisp_Object val) | |
378 | { | |
379 | w->top_line = val; | |
380 | } | |
381 | WINDOW_INLINE void | |
382 | wset_total_cols (struct window *w, Lisp_Object val) | |
383 | { | |
384 | w->total_cols = val; | |
385 | } | |
386 | WINDOW_INLINE void | |
387 | wset_total_lines (struct window *w, Lisp_Object val) | |
388 | { | |
389 | w->total_lines = val; | |
390 | } | |
391 | WINDOW_INLINE void | |
392 | wset_vertical_scroll_bar (struct window *w, Lisp_Object val) | |
393 | { | |
394 | w->vertical_scroll_bar = val; | |
395 | } | |
396 | WINDOW_INLINE void | |
397 | wset_window_end_pos (struct window *w, Lisp_Object val) | |
398 | { | |
399 | w->window_end_pos = val; | |
400 | } | |
401 | WINDOW_INLINE void | |
e8c17b81 PE |
402 | wset_window_end_vpos (struct window *w, Lisp_Object val) |
403 | { | |
404 | w->window_end_vpos = val; | |
405 | } | |
d73e321c DA |
406 | WINDOW_INLINE void |
407 | wset_prev_buffers (struct window *w, Lisp_Object val) | |
408 | { | |
409 | w->prev_buffers = val; | |
410 | } | |
411 | WINDOW_INLINE void | |
412 | wset_next_buffers (struct window *w, Lisp_Object val) | |
413 | { | |
414 | w->next_buffers = val; | |
415 | } | |
e8c17b81 | 416 | |
83b2229f JB |
417 | /* 1 if W is a minibuffer window. */ |
418 | ||
c98ff5dd | 419 | #define MINI_WINDOW_P(W) ((W)->mini) |
83b2229f | 420 | |
6000501b KS |
421 | /* General window layout: |
422 | ||
423 | LEFT_EDGE_COL RIGHT_EDGE_COL | |
424 | | | | |
425 | | | | |
426 | | BOX_LEFT_EDGE_COL | | |
427 | | | BOX_RIGHT_EDGE_COL | | |
428 | | | | | | |
429 | v v v v | |
430 | <-><-><---><-----------><---><-><-> | |
431 | ^ ^ ^ ^ ^ ^ ^ | |
432 | | | | | | | | | |
433 | | | | | | | +-- RIGHT_SCROLL_BAR_COLS | |
434 | | | | | | +----- RIGHT_FRINGE_WIDTH | |
435 | | | | | +--------- RIGHT_MARGIN_COLS | |
436 | | | | | | |
437 | | | | +------------------ TEXT_AREA_COLS | |
438 | | | | | |
439 | | | +--------------------------- LEFT_MARGIN_COLS | |
440 | | +------------------------------- LEFT_FRINGE_WIDTH | |
441 | +---------------------------------- LEFT_SCROLL_BAR_COLS | |
754dc3d8 | 442 | |
6000501b KS |
443 | */ |
444 | ||
445 | ||
446 | /* A handy macro. */ | |
447 | ||
448 | #define WINDOW_XFRAME(W) \ | |
449 | (XFRAME (WINDOW_FRAME ((W)))) | |
450 | ||
451 | /* Return the canonical column width of the frame of window W. */ | |
452 | ||
453 | #define WINDOW_FRAME_COLUMN_WIDTH(W) \ | |
454 | (FRAME_COLUMN_WIDTH (WINDOW_XFRAME ((W)))) | |
455 | ||
456 | /* Return the canonical column width of the frame of window W. */ | |
457 | ||
458 | #define WINDOW_FRAME_LINE_HEIGHT(W) \ | |
459 | (FRAME_LINE_HEIGHT (WINDOW_XFRAME ((W)))) | |
460 | ||
92f774f3 | 461 | /* Return the width of window W in canonical column units. |
6000501b | 462 | This includes scroll bars and fringes. */ |
8516ba9a | 463 | |
6000501b | 464 | #define WINDOW_TOTAL_COLS(W) \ |
d3d50620 | 465 | (XFASTINT (W->total_cols)) |
6000501b | 466 | |
92f774f3 | 467 | /* Return the height of window W in canonical line units. |
6000501b KS |
468 | This includes header and mode lines, if any. */ |
469 | ||
470 | #define WINDOW_TOTAL_LINES(W) \ | |
d3d50620 | 471 | (XFASTINT (W->total_lines)) |
6000501b | 472 | |
6000501b KS |
473 | /* Return the total pixel width of window W. */ |
474 | ||
475 | #define WINDOW_TOTAL_WIDTH(W) \ | |
476 | (WINDOW_TOTAL_COLS (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
477 | ||
478 | /* Return the total pixel height of window W. */ | |
479 | ||
480 | #define WINDOW_TOTAL_HEIGHT(W) \ | |
481 | (WINDOW_TOTAL_LINES (W) * WINDOW_FRAME_LINE_HEIGHT (W)) | |
482 | ||
496e208e MR |
483 | /* For HORFLAG non-zero the total number of columns of window W. Otherwise |
484 | the total number of lines of W. */ | |
485 | ||
486 | #define WINDOW_TOTAL_SIZE(w, horflag) \ | |
487 | (horflag ? WINDOW_TOTAL_COLS (w) : WINDOW_TOTAL_LINES (w)) | |
488 | ||
489 | /* The smallest acceptable dimensions for a window. Anything smaller | |
490 | might crash Emacs. */ | |
491 | ||
492 | #define MIN_SAFE_WINDOW_WIDTH (2) | |
493 | #define MIN_SAFE_WINDOW_HEIGHT (1) | |
6000501b KS |
494 | |
495 | /* Return the canonical frame column at which window W starts. | |
496 | This includes a left-hand scroll bar, if any. */ | |
497 | ||
498 | #define WINDOW_LEFT_EDGE_COL(W) \ | |
d3d50620 | 499 | (XFASTINT (W->left_col)) |
6000501b KS |
500 | |
501 | /* Return the canonical frame column before which window W ends. | |
8516ba9a RS |
502 | This includes a right-hand scroll bar, if any. */ |
503 | ||
6000501b KS |
504 | #define WINDOW_RIGHT_EDGE_COL(W) \ |
505 | (WINDOW_LEFT_EDGE_COL (W) + WINDOW_TOTAL_COLS (W)) | |
8516ba9a | 506 | |
6000501b KS |
507 | /* Return the canonical frame line at which window W starts. |
508 | This includes a header line, if any. */ | |
509 | ||
510 | #define WINDOW_TOP_EDGE_LINE(W) \ | |
d3d50620 | 511 | (XFASTINT (W->top_line)) |
6000501b KS |
512 | |
513 | /* Return the canonical frame line before which window W ends. | |
514 | This includes a mode line, if any. */ | |
515 | ||
516 | #define WINDOW_BOTTOM_EDGE_LINE(W) \ | |
517 | (WINDOW_TOP_EDGE_LINE (W) + WINDOW_TOTAL_LINES (W)) | |
518 | ||
519 | ||
520 | /* Return the frame x-position at which window W starts. | |
521 | This includes a left-hand scroll bar, if any. */ | |
522 | ||
523 | #define WINDOW_LEFT_EDGE_X(W) \ | |
524 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
525 | + WINDOW_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
526 | ||
527 | /* Return the frame x- position before which window W ends. | |
528 | This includes a right-hand scroll bar, if any. */ | |
529 | ||
530 | #define WINDOW_RIGHT_EDGE_X(W) \ | |
531 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
532 | + WINDOW_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
533 | ||
4b00d3b1 YM |
534 | /* 1 if W is a menu bar window. */ |
535 | ||
536 | #define WINDOW_MENU_BAR_P(W) \ | |
e69b0960 DA |
537 | (WINDOWP (WINDOW_XFRAME (W)->menu_bar_window) \ |
538 | && (W) == XWINDOW (WINDOW_XFRAME (W)->menu_bar_window)) | |
4b00d3b1 YM |
539 | |
540 | /* 1 if W is a tool bar window. */ | |
541 | ||
542 | #define WINDOW_TOOL_BAR_P(W) \ | |
e69b0960 DA |
543 | (WINDOWP (WINDOW_XFRAME (W)->tool_bar_window) \ |
544 | && (W) == XWINDOW (WINDOW_XFRAME (W)->tool_bar_window)) | |
4b00d3b1 | 545 | |
6000501b KS |
546 | /* Return the frame y-position at which window W starts. |
547 | This includes a header line, if any. */ | |
548 | ||
549 | #define WINDOW_TOP_EDGE_Y(W) \ | |
4b00d3b1 YM |
550 | (((WINDOW_MENU_BAR_P (W) || WINDOW_TOOL_BAR_P (W)) \ |
551 | ? 0 : FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W))) \ | |
6000501b KS |
552 | + WINDOW_TOP_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W)) |
553 | ||
554 | /* Return the frame y-position before which window W ends. | |
555 | This includes a mode line, if any. */ | |
556 | ||
557 | #define WINDOW_BOTTOM_EDGE_Y(W) \ | |
4b00d3b1 YM |
558 | (((WINDOW_MENU_BAR_P (W) || WINDOW_TOOL_BAR_P (W)) \ |
559 | ? 0 : FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W))) \ | |
6000501b | 560 | + WINDOW_BOTTOM_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W)) |
14a65ffe | 561 | |
8516ba9a | 562 | |
177c0ea7 | 563 | /* 1 if window W takes up the full width of its frame. */ |
8516ba9a RS |
564 | |
565 | #define WINDOW_FULL_WIDTH_P(W) \ | |
6000501b KS |
566 | (WINDOW_TOTAL_COLS (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W))) |
567 | ||
568 | /* 1 if window W's has no other windows to its left in its frame. */ | |
569 | ||
570 | #define WINDOW_LEFTMOST_P(W) \ | |
571 | (WINDOW_LEFT_EDGE_COL (W) == 0) | |
8516ba9a | 572 | |
177c0ea7 | 573 | /* 1 if window W's has no other windows to its right in its frame. */ |
8516ba9a RS |
574 | |
575 | #define WINDOW_RIGHTMOST_P(W) \ | |
6000501b KS |
576 | (WINDOW_RIGHT_EDGE_COL (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W))) |
577 | ||
578 | ||
579 | /* Return the frame column at which the text (or left fringe) in | |
580 | window W starts. This is different from the `LEFT_EDGE' because it | |
581 | does not include a left-hand scroll bar if any. */ | |
582 | ||
583 | #define WINDOW_BOX_LEFT_EDGE_COL(W) \ | |
584 | (WINDOW_LEFT_EDGE_COL (W) \ | |
585 | + WINDOW_LEFT_SCROLL_BAR_COLS (W)) | |
586 | ||
587 | /* Return the window column before which the text in window W ends. | |
588 | This is different from WINDOW_RIGHT_EDGE_COL because it does not | |
589 | include a scroll bar or window-separating line on the right edge. */ | |
590 | ||
591 | #define WINDOW_BOX_RIGHT_EDGE_COL(W) \ | |
592 | (WINDOW_RIGHT_EDGE_COL (W) \ | |
593 | - WINDOW_RIGHT_SCROLL_BAR_COLS (W)) | |
594 | ||
595 | ||
596 | /* Return the frame position at which the text (or left fringe) in | |
597 | window W starts. This is different from the `LEFT_EDGE' because it | |
598 | does not include a left-hand scroll bar if any. */ | |
599 | ||
600 | #define WINDOW_BOX_LEFT_EDGE_X(W) \ | |
601 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
602 | + WINDOW_BOX_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
603 | ||
604 | /* Return the window column before which the text in window W ends. | |
605 | This is different from WINDOW_RIGHT_EDGE_COL because it does not | |
606 | include a scroll bar or window-separating line on the right edge. */ | |
607 | ||
608 | #define WINDOW_BOX_RIGHT_EDGE_X(W) \ | |
609 | (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \ | |
610 | + WINDOW_BOX_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W)) | |
611 | ||
612 | ||
613 | /* Width of left margin area in columns. */ | |
614 | ||
d3d50620 DA |
615 | #define WINDOW_LEFT_MARGIN_COLS(W) \ |
616 | (NILP (W->left_margin_cols) \ | |
617 | ? 0 \ | |
618 | : XINT (W->left_margin_cols)) | |
6000501b KS |
619 | |
620 | /* Width of right marginal area in columns. */ | |
621 | ||
d3d50620 DA |
622 | #define WINDOW_RIGHT_MARGIN_COLS(W) \ |
623 | (NILP (W->right_margin_cols) \ | |
624 | ? 0 \ | |
625 | : XINT (W->right_margin_cols)) | |
6000501b KS |
626 | |
627 | /* Width of left margin area in pixels. */ | |
628 | ||
d3d50620 DA |
629 | #define WINDOW_LEFT_MARGIN_WIDTH(W) \ |
630 | (NILP (W->left_margin_cols) \ | |
631 | ? 0 \ | |
632 | : (XINT (W->left_margin_cols) \ | |
6000501b KS |
633 | * WINDOW_FRAME_COLUMN_WIDTH (W))) |
634 | ||
635 | /* Width of right marginal area in pixels. */ | |
636 | ||
d3d50620 DA |
637 | #define WINDOW_RIGHT_MARGIN_WIDTH(W) \ |
638 | (NILP (W->right_margin_cols) \ | |
639 | ? 0 \ | |
640 | : (XINT (W->right_margin_cols) \ | |
6000501b KS |
641 | * WINDOW_FRAME_COLUMN_WIDTH (W))) |
642 | ||
643 | /* Total width of fringes reserved for drawing truncation bitmaps, | |
644 | continuation bitmaps and alike. The width is in canonical char | |
645 | units of the frame. This must currently be the case because window | |
646 | sizes aren't pixel values. If it weren't the case, we wouldn't be | |
647 | able to split windows horizontally nicely. */ | |
648 | ||
d3d50620 DA |
649 | #define WINDOW_FRINGE_COLS(W) \ |
650 | ((INTEGERP (W->left_fringe_width) \ | |
651 | || INTEGERP (W->right_fringe_width)) \ | |
652 | ? ((WINDOW_LEFT_FRINGE_WIDTH (W) \ | |
653 | + WINDOW_RIGHT_FRINGE_WIDTH (W) \ | |
654 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
655 | / WINDOW_FRAME_COLUMN_WIDTH (W)) \ | |
6000501b KS |
656 | : FRAME_FRINGE_COLS (WINDOW_XFRAME (W))) |
657 | ||
01aa0b2e RS |
658 | /* Column-width of the left and right fringe. */ |
659 | ||
d3d50620 DA |
660 | #define WINDOW_LEFT_FRINGE_COLS(W) \ |
661 | ((WINDOW_LEFT_FRINGE_WIDTH ((W)) \ | |
662 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
01aa0b2e RS |
663 | / WINDOW_FRAME_COLUMN_WIDTH (W)) |
664 | ||
d3d50620 DA |
665 | #define WINDOW_RIGHT_FRINGE_COLS(W) \ |
666 | ((WINDOW_RIGHT_FRINGE_WIDTH ((W)) \ | |
667 | + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \ | |
01aa0b2e RS |
668 | / WINDOW_FRAME_COLUMN_WIDTH (W)) |
669 | ||
6000501b KS |
670 | /* Pixel-width of the left and right fringe. */ |
671 | ||
672 | #define WINDOW_LEFT_FRINGE_WIDTH(W) \ | |
d3d50620 DA |
673 | (INTEGERP (W->left_fringe_width) \ |
674 | ? XFASTINT (W->left_fringe_width) \ | |
6000501b KS |
675 | : FRAME_LEFT_FRINGE_WIDTH (WINDOW_XFRAME (W))) |
676 | ||
677 | #define WINDOW_RIGHT_FRINGE_WIDTH(W) \ | |
d3d50620 DA |
678 | (INTEGERP (W->right_fringe_width) \ |
679 | ? XFASTINT (W->right_fringe_width) \ | |
6000501b KS |
680 | : FRAME_RIGHT_FRINGE_WIDTH (WINDOW_XFRAME (W))) |
681 | ||
682 | /* Total width of fringes in pixels. */ | |
683 | ||
684 | #define WINDOW_TOTAL_FRINGE_WIDTH(W) \ | |
685 | (WINDOW_LEFT_FRINGE_WIDTH (W) + WINDOW_RIGHT_FRINGE_WIDTH (W)) | |
686 | ||
687 | /* Are fringes outside display margins in window W. */ | |
688 | ||
689 | #define WINDOW_HAS_FRINGES_OUTSIDE_MARGINS(W) \ | |
2af3565e | 690 | ((W)->fringes_outside_margins) |
6000501b KS |
691 | |
692 | /* Say whether scroll bars are currently enabled for window W, | |
693 | and which side they are on. */ | |
694 | ||
695 | #define WINDOW_VERTICAL_SCROLL_BAR_TYPE(w) \ | |
d3d50620 | 696 | (EQ (w->vertical_scroll_bar_type, Qt) \ |
6000501b | 697 | ? FRAME_VERTICAL_SCROLL_BAR_TYPE (WINDOW_XFRAME (w)) \ |
d3d50620 | 698 | : EQ (w->vertical_scroll_bar_type, Qleft) \ |
6000501b | 699 | ? vertical_scroll_bar_left \ |
d3d50620 | 700 | : EQ (w->vertical_scroll_bar_type, Qright) \ |
6000501b KS |
701 | ? vertical_scroll_bar_right \ |
702 | : vertical_scroll_bar_none) \ | |
703 | ||
704 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR(w) \ | |
d3d50620 | 705 | (EQ (w->vertical_scroll_bar_type, Qt) \ |
6000501b | 706 | ? FRAME_HAS_VERTICAL_SCROLL_BARS (WINDOW_XFRAME (w)) \ |
d3d50620 | 707 | : !NILP (w->vertical_scroll_bar_type)) |
6000501b KS |
708 | |
709 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT(w) \ | |
d3d50620 | 710 | (EQ (w->vertical_scroll_bar_type, Qt) \ |
6000501b | 711 | ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (WINDOW_XFRAME (w)) \ |
d3d50620 | 712 | : EQ (w->vertical_scroll_bar_type, Qleft)) |
6000501b | 713 | |
d3d50620 DA |
714 | #define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT(w) \ |
715 | (EQ (w->vertical_scroll_bar_type, Qt) \ | |
716 | ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (WINDOW_XFRAME (w)) \ | |
717 | : EQ (w->vertical_scroll_bar_type, Qright)) | |
6000501b KS |
718 | |
719 | /* Width that a scroll bar in window W should have, if there is one. | |
720 | Measured in pixels. If scroll bars are turned off, this is still | |
721 | nonzero. */ | |
722 | ||
723 | #define WINDOW_CONFIG_SCROLL_BAR_WIDTH(w) \ | |
d3d50620 DA |
724 | (INTEGERP (w->scroll_bar_width) \ |
725 | ? XFASTINT (w->scroll_bar_width) \ | |
6000501b KS |
726 | : FRAME_CONFIG_SCROLL_BAR_WIDTH (WINDOW_XFRAME (w))) |
727 | ||
728 | /* Width that a scroll bar in window W should have, if there is one. | |
729 | Measured in columns (characters). If scroll bars are turned off, | |
730 | this is still nonzero. */ | |
731 | ||
732 | #define WINDOW_CONFIG_SCROLL_BAR_COLS(w) \ | |
d3d50620 DA |
733 | (INTEGERP (w->scroll_bar_width) \ |
734 | ? ((XFASTINT (w->scroll_bar_width) \ | |
6000501b KS |
735 | + WINDOW_FRAME_COLUMN_WIDTH (w) - 1) \ |
736 | / WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
737 | : FRAME_CONFIG_SCROLL_BAR_COLS (WINDOW_XFRAME (w))) | |
738 | ||
739 | /* Width of a scroll bar in window W, measured in columns (characters), | |
740 | but only if scroll bars are on the left. If scroll bars are on | |
741 | the right in this frame, or there are no scroll bars, value is 0. */ | |
742 | ||
743 | #define WINDOW_LEFT_SCROLL_BAR_COLS(w) \ | |
d3d50620 | 744 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \ |
6000501b KS |
745 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w)) \ |
746 | : 0) | |
747 | ||
748 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
749 | ||
d3d50620 DA |
750 | #define WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH(w) \ |
751 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \ | |
6000501b KS |
752 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ |
753 | : 0) | |
754 | ||
755 | /* Width of a scroll bar in window W, measured in columns (characters), | |
756 | but only if scroll bars are on the right. If scroll bars are on | |
757 | the left in this frame, or there are no scroll bars, value is 0. */ | |
758 | ||
759 | #define WINDOW_RIGHT_SCROLL_BAR_COLS(w) \ | |
d3d50620 | 760 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \ |
6000501b KS |
761 | ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \ |
762 | : 0) | |
763 | ||
764 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
765 | ||
766 | #define WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH(w) \ | |
767 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \ | |
768 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ | |
769 | : 0) | |
770 | ||
771 | ||
772 | /* Actual width of a scroll bar in window W, measured in columns. */ | |
773 | ||
774 | #define WINDOW_SCROLL_BAR_COLS(w) \ | |
775 | (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \ | |
776 | ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \ | |
777 | : 0) | |
778 | ||
779 | /* Width of a left scroll bar area in window W , measured in pixels. */ | |
780 | ||
781 | #define WINDOW_SCROLL_BAR_AREA_WIDTH(w) \ | |
d3d50620 | 782 | (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \ |
6000501b KS |
783 | ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \ |
784 | : 0) | |
785 | ||
786 | ||
787 | /* Return the frame position where the scroll bar of window W starts. */ | |
788 | ||
789 | #define WINDOW_SCROLL_BAR_AREA_X(W) \ | |
790 | (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (W) \ | |
791 | ? WINDOW_BOX_RIGHT_EDGE_X (W) \ | |
792 | : WINDOW_LEFT_EDGE_X (W)) | |
793 | ||
794 | ||
01aa0b2e RS |
795 | /* Height in pixels, and in lines, of the mode line. |
796 | May be zero if W doesn't have a mode line. */ | |
6000501b KS |
797 | |
798 | #define WINDOW_MODE_LINE_HEIGHT(W) \ | |
799 | (WINDOW_WANTS_MODELINE_P ((W)) \ | |
800 | ? CURRENT_MODE_LINE_HEIGHT (W) \ | |
801 | : 0) | |
802 | ||
d3d50620 | 803 | #define WINDOW_MODE_LINE_LINES(W) \ |
01aa0b2e RS |
804 | (!! WINDOW_WANTS_MODELINE_P ((W))) |
805 | ||
806 | /* Height in pixels, and in lines, of the header line. | |
807 | Zero if W doesn't have a header line. */ | |
6000501b KS |
808 | |
809 | #define WINDOW_HEADER_LINE_HEIGHT(W) \ | |
810 | (WINDOW_WANTS_HEADER_LINE_P ((W)) \ | |
811 | ? CURRENT_HEADER_LINE_HEIGHT (W) \ | |
812 | : 0) | |
813 | ||
d3d50620 | 814 | #define WINDOW_HEADER_LINE_LINES(W) \ |
01aa0b2e RS |
815 | (!! WINDOW_WANTS_HEADER_LINE_P ((W))) |
816 | ||
6000501b KS |
817 | /* Pixel height of window W without mode line. */ |
818 | ||
819 | #define WINDOW_BOX_HEIGHT_NO_MODE_LINE(W) \ | |
820 | (WINDOW_TOTAL_HEIGHT ((W)) \ | |
821 | - WINDOW_MODE_LINE_HEIGHT ((W))) | |
822 | ||
823 | /* Pixel height of window W without mode and header line. */ | |
824 | ||
d3d50620 DA |
825 | #define WINDOW_BOX_TEXT_HEIGHT(W) \ |
826 | (WINDOW_TOTAL_HEIGHT ((W)) \ | |
827 | - WINDOW_MODE_LINE_HEIGHT ((W)) \ | |
6000501b KS |
828 | - WINDOW_HEADER_LINE_HEIGHT ((W))) |
829 | ||
830 | ||
831 | /* Convert window W relative pixel X to frame pixel coordinates. */ | |
832 | ||
d3d50620 | 833 | #define WINDOW_TO_FRAME_PIXEL_X(W, X) \ |
6000501b KS |
834 | ((X) + WINDOW_BOX_LEFT_EDGE_X ((W))) |
835 | ||
836 | /* Convert window W relative pixel Y to frame pixel coordinates. */ | |
837 | ||
d3d50620 | 838 | #define WINDOW_TO_FRAME_PIXEL_Y(W, Y) \ |
6000501b KS |
839 | ((Y) + WINDOW_TOP_EDGE_Y ((W))) |
840 | ||
841 | /* Convert frame relative pixel X to window relative pixel X. */ | |
842 | ||
d3d50620 | 843 | #define FRAME_TO_WINDOW_PIXEL_X(W, X) \ |
6000501b KS |
844 | ((X) - WINDOW_BOX_LEFT_EDGE_X ((W))) |
845 | ||
846 | /* Convert frame relative pixel Y to window relative pixel Y. */ | |
847 | ||
d3d50620 | 848 | #define FRAME_TO_WINDOW_PIXEL_Y(W, Y) \ |
6000501b KS |
849 | ((Y) - WINDOW_TOP_EDGE_Y ((W))) |
850 | ||
851 | /* Convert a text area relative x-position in window W to frame X | |
852 | pixel coordinates. */ | |
177c0ea7 | 853 | |
d3d50620 | 854 | #define WINDOW_TEXT_TO_FRAME_PIXEL_X(W, X) \ |
6000501b | 855 | (window_box_left ((W), TEXT_AREA) + (X)) |
f43dd834 | 856 | |
83b2229f JB |
857 | /* This is the window in which the terminal's cursor should |
858 | be left when nothing is being done with it. This must | |
859 | always be a leaf window, and its buffer is selected by | |
860 | the top level editing loop at the end of each command. | |
861 | ||
862 | This value is always the same as | |
44fa5b1e | 863 | FRAME_SELECTED_WINDOW (selected_frame). */ |
83b2229f JB |
864 | |
865 | extern Lisp_Object selected_window; | |
866 | ||
867 | /* This is a time stamp for window selection, so we can find the least | |
868 | recently used window. Its only users are Fselect_window, | |
44fa5b1e | 869 | init_window_once, and make_frame. */ |
83b2229f JB |
870 | |
871 | extern int window_select_count; | |
872 | ||
44fa5b1e | 873 | /* The minibuffer window of the selected frame. |
83b2229f | 874 | Note that you cannot test for minibufferness of an arbitrary window |
fbfed6f0 | 875 | by comparing against this; use the MINI_WINDOW_P macro instead. */ |
83b2229f JB |
876 | |
877 | extern Lisp_Object minibuf_window; | |
878 | ||
76e316e0 KS |
879 | /* Non-nil means it is the window whose mode line should be |
880 | shown as the selected window when the minibuffer is selected. */ | |
881 | ||
5705966b | 882 | extern Lisp_Object minibuf_selected_window; |
76e316e0 | 883 | |
83b2229f | 884 | /* Window that the mouse is over (nil if no mouse support). */ |
f43dd834 | 885 | |
83b2229f JB |
886 | extern Lisp_Object Vmouse_window; |
887 | ||
888 | /* Last mouse-click event (nil if no mouse support). */ | |
f43dd834 | 889 | |
83b2229f JB |
890 | extern Lisp_Object Vmouse_event; |
891 | ||
383e0970 | 892 | extern Lisp_Object make_window (void); |
383e0970 | 893 | extern Lisp_Object window_from_coordinates (struct frame *, int, int, |
9173a8fb | 894 | enum window_part *, int); |
9397e56f | 895 | extern void resize_frame_windows (struct frame *, int, int); |
be7f5545 | 896 | extern void delete_all_child_windows (Lisp_Object); |
383e0970 | 897 | extern void freeze_window_starts (struct frame *, int); |
383e0970 J |
898 | extern void grow_mini_window (struct window *, int); |
899 | extern void shrink_mini_window (struct window *); | |
9173a8fb | 900 | extern int window_relative_x_coord (struct window *, enum window_part, int); |
57209cba | 901 | |
ef264c42 | 902 | void run_window_configuration_change_hook (struct frame *f); |
83b2229f | 903 | |
f43dd834 GM |
904 | /* Make WINDOW display BUFFER as its contents. RUN_HOOKS_P non-zero |
905 | means it's allowed to run hooks. See make_frame for a case where | |
906 | it's not allowed. */ | |
907 | ||
383e0970 J |
908 | void set_window_buffer (Lisp_Object window, Lisp_Object buffer, |
909 | int run_hooks_p, int keep_margins_p); | |
f43dd834 | 910 | |
f43dd834 GM |
911 | /* This is the window where the echo area message was displayed. It |
912 | is always a minibuffer window, but it may not be the same window | |
913 | currently active as a minibuffer. */ | |
914 | ||
c0acc112 RS |
915 | extern Lisp_Object echo_area_window; |
916 | ||
83b2229f | 917 | /* Depth in recursive edits. */ |
f43dd834 | 918 | |
62f19c19 | 919 | extern EMACS_INT command_loop_level; |
83b2229f JB |
920 | |
921 | /* Depth in minibuffer invocations. */ | |
f43dd834 | 922 | |
62f19c19 | 923 | extern EMACS_INT minibuf_level; |
83b2229f | 924 | |
e0f24100 | 925 | /* true if we should redraw the mode lines on the next redisplay. */ |
f43dd834 | 926 | |
83b2229f JB |
927 | extern int update_mode_lines; |
928 | ||
f43dd834 | 929 | /* Nonzero if window sizes or contents have changed since last |
1e101a4b | 930 | redisplay that finished. */ |
f43dd834 | 931 | |
83b2229f JB |
932 | extern int windows_or_buffers_changed; |
933 | ||
d1a0ea0a RS |
934 | /* Nonzero means a frame's cursor type has been changed. */ |
935 | ||
936 | extern int cursor_type_changed; | |
937 | ||
fbfed6f0 JB |
938 | /* If *ROWS or *COLS are too small a size for FRAME, set them to the |
939 | minimum allowable size. */ | |
f43dd834 | 940 | |
383e0970 | 941 | extern void check_frame_size (struct frame *frame, int *rows, int *cols); |
f43dd834 GM |
942 | |
943 | /* Return a pointer to the glyph W's physical cursor is on. Value is | |
c80e3b4a | 944 | null if W's current matrix is invalid, so that no meaningful glyph |
f43dd834 GM |
945 | can be returned. */ |
946 | ||
383e0970 | 947 | struct glyph *get_phys_cursor_glyph (struct window *w); |
f43dd834 | 948 | |
52162052 MR |
949 | /* Value is non-zero if WINDOW is a valid window. */ |
950 | #define WINDOW_VALID_P(WINDOW) \ | |
951 | (WINDOWP (WINDOW) \ | |
952 | && (!NILP (XWINDOW (WINDOW)->buffer) \ | |
953 | || !NILP (XWINDOW (WINDOW)->vchild) \ | |
954 | || !NILP (XWINDOW (WINDOW)->hchild))) | |
955 | ||
b9e9df47 DA |
956 | /* A window of any sort, leaf or interior, is "valid" if one |
957 | of its buffer, vchild, or hchild members is non-nil. */ | |
958 | #define CHECK_VALID_WINDOW(WINDOW) \ | |
959 | CHECK_TYPE (WINDOW_VALID_P (WINDOW), Qwindow_valid_p, WINDOW) | |
91523be9 | 960 | |
52162052 | 961 | /* Value is non-zero if WINDOW is a live window. */ |
077288cf | 962 | #define WINDOW_LIVE_P(WINDOW) \ |
d3d50620 | 963 | (WINDOWP (WINDOW) && !NILP (XWINDOW (WINDOW)->buffer)) |
9a274fbd | 964 | |
b9e9df47 DA |
965 | /* A window is "live" if and only if it shows a buffer. */ |
966 | #define CHECK_LIVE_WINDOW(WINDOW) \ | |
967 | CHECK_TYPE (WINDOW_LIVE_P (WINDOW), Qwindow_live_p, WINDOW) | |
968 | ||
9a274fbd SM |
969 | /* These used to be in lisp.h. */ |
970 | ||
971 | extern Lisp_Object Qwindowp, Qwindow_live_p; | |
972 | extern Lisp_Object Vwindow_list; | |
973 | ||
52162052 | 974 | extern struct window *decode_live_window (Lisp_Object); |
b9e9df47 | 975 | extern struct window *decode_any_window (Lisp_Object); |
f75d7a91 | 976 | extern bool compare_window_configurations (Lisp_Object, Lisp_Object, bool); |
383e0970 J |
977 | extern void mark_window_cursors_off (struct window *); |
978 | extern int window_internal_height (struct window *); | |
496e208e | 979 | extern int window_body_cols (struct window *w); |
383e0970 | 980 | extern void temp_output_buffer_show (Lisp_Object); |
b6e3633c | 981 | extern void replace_buffer_in_windows (Lisp_Object); |
9397e56f | 982 | extern void replace_buffer_in_windows_safely (Lisp_Object); |
98a07056 DA |
983 | /* This looks like a setter, but it is a bit special. */ |
984 | extern void wset_buffer (struct window *, Lisp_Object); | |
383e0970 J |
985 | extern void init_window_once (void); |
986 | extern void init_window (void); | |
987 | extern void syms_of_window (void); | |
988 | extern void keys_of_window (void); | |
989 | ||
e8c17b81 PE |
990 | INLINE_HEADER_END |
991 | ||
f43dd834 | 992 | #endif /* not WINDOW_H_INCLUDED */ |