Commit | Line | Data |
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c115973b | 1 | /* "Face" primitives |
7b7739b1 JB |
2 | Copyright (C) 1992, 1993 Free Software Foundation. |
3 | ||
c115973b JB |
4 | This file is part of GNU Emacs. |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 8 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
357f32fc | 20 | /* This is derived from work by Lucid (some parts very loosely so). */ |
7b7739b1 | 21 | |
c115973b JB |
22 | #include <sys/types.h> |
23 | #include <sys/stat.h> | |
24 | ||
25 | #include "config.h" | |
26 | #include "lisp.h" | |
27 | ||
28 | #include "xterm.h" | |
29 | #include "buffer.h" | |
f211082d | 30 | #include "dispextern.h" |
7b7739b1 | 31 | #include "frame.h" |
357f32fc | 32 | #include "blockinput.h" |
f211082d | 33 | /* #include "window.h" */ |
c115973b JB |
34 | |
35 | /* Display Context for the icons */ | |
36 | #include <X11/Intrinsic.h> | |
37 | #include <X11/StringDefs.h> | |
38 | #include <X11/Xmu/Drawing.h> | |
39 | #include <X11/Xos.h> | |
40 | ||
7b7739b1 | 41 | /* We use face structures in two ways: |
f211082d JB |
42 | At the frame level, each frame has a vector of faces (FRAME_FACES). |
43 | Face number 0 is the default face (for normal text). | |
7b7739b1 JB |
44 | Face number 1 is the mode line face. |
45 | Higher face numbers have no built-in meaning. | |
46 | The faces in these vectors are called "frame faces". | |
47 | ||
48 | Faces number 0 and 1 have graphics contexts. | |
357f32fc | 49 | They can be used in the redisplay code directly. |
7b7739b1 JB |
50 | Higher numbered frame faces do not have graphics contexts. |
51 | ||
52 | There are also "cached faces". They have graphics contexts. | |
53 | They are kept in a C vector called face_vector. | |
54 | ||
55 | A "display face" is a face with a graphics context. | |
56 | It is either a frame face number 0 or 1, | |
57 | or a cached face. */ | |
58 | ||
c115973b JB |
59 | /* A table of display faces. */ |
60 | struct face **face_vector; | |
61 | /* The length in use of the table. */ | |
62 | int nfaces; | |
63 | /* The allocated length of the table. */ | |
64 | int nfaces_allocated; | |
65 | ||
66 | /* The number of face-id's in use (same for all frames). */ | |
67 | int next_face_id; | |
68 | ||
7b7739b1 JB |
69 | #define FACE_DEFAULT (~0) |
70 | ||
f211082d JB |
71 | Lisp_Object Qface, Qwindow, Qpriority; |
72 | ||
c115973b JB |
73 | static struct face *allocate_face (); |
74 | static void build_face (); | |
f211082d JB |
75 | static int sort_overlays (); |
76 | static struct face *get_display_face (); | |
77 | static Lisp_Object face_name_id_number (); | |
c115973b JB |
78 | \f |
79 | /* Make a new face that's a copy of an existing one. */ | |
80 | ||
81 | static struct face * | |
82 | copy_face (face) | |
83 | struct face *face; | |
84 | { | |
85 | struct face *result = allocate_face (); | |
86 | ||
87 | result->font = face->font; | |
88 | result->foreground = face->foreground; | |
89 | result->background = face->background; | |
f211082d | 90 | result->stipple = face->stipple; |
c115973b JB |
91 | result->underline = face->underline; |
92 | ||
93 | return result; | |
94 | } | |
95 | ||
96 | static int | |
97 | face_eql (face1, face2) | |
98 | struct face *face1, *face2; | |
99 | { | |
100 | return (face1->font == face2->font | |
101 | && face1->foreground == face2->foreground | |
102 | && face1->background == face2->background | |
f211082d | 103 | && face1->stipple == face2->stipple |
c115973b JB |
104 | && face1->underline == face2->underline); |
105 | } | |
106 | ||
107 | /* Return the unique display face corresponding to the user-level face FACE. | |
108 | ||
109 | If there isn't one, make one, and find a slot in the face_vector to | |
110 | put it in. */ | |
111 | ||
112 | static struct face * | |
7b7739b1 | 113 | get_cached_face (f, face) |
c115973b JB |
114 | struct frame *f; |
115 | struct face *face; | |
116 | { | |
117 | int i, empty = -1; | |
f211082d | 118 | struct face *result; |
c115973b JB |
119 | |
120 | /* Look for an existing display face that does the job. | |
121 | Also find an empty slot if any. */ | |
122 | for (i = 0; i < nfaces; i++) | |
123 | { | |
124 | if (face_eql (face_vector[i], face)) | |
125 | return face_vector[i]; | |
126 | if (face_vector[i] == 0) | |
127 | empty = i; | |
128 | } | |
129 | ||
130 | /* If no empty slots, make one. */ | |
131 | if (empty < 0 && nfaces == nfaces_allocated) | |
132 | { | |
133 | int newsize = nfaces + 20; | |
134 | face_vector | |
135 | = (struct face **) xrealloc (face_vector, | |
136 | newsize * sizeof (struct face *)); | |
137 | nfaces_allocated = newsize; | |
138 | } | |
139 | ||
140 | if (empty < 0) | |
141 | empty = nfaces++; | |
142 | ||
143 | /* Put a new display face in the empty slot. */ | |
144 | result = copy_face (face); | |
145 | face_vector[empty] = result; | |
146 | ||
147 | /* Make a graphics context for it. */ | |
148 | build_face (f, result); | |
149 | ||
150 | return result; | |
151 | } | |
152 | ||
153 | /* Clear out face_vector and start anew. | |
154 | This should be done from time to time just to avoid | |
155 | keeping too many graphics contexts in face_vector | |
156 | that are no longer needed. */ | |
157 | ||
158 | void | |
159 | clear_face_vector () | |
160 | { | |
161 | Lisp_Object rest; | |
162 | Display *dpy = x_current_display; | |
f211082d | 163 | int i; |
c115973b JB |
164 | |
165 | BLOCK_INPUT; | |
166 | /* Free the display faces in the face_vector. */ | |
167 | for (i = 0; i < nfaces; i++) | |
168 | { | |
169 | struct face *face = face_vector[i]; | |
f211082d JB |
170 | if (face->gc) |
171 | XFreeGC (dpy, face->gc); | |
c115973b JB |
172 | xfree (face); |
173 | } | |
174 | nfaces = 0; | |
175 | ||
176 | UNBLOCK_INPUT; | |
177 | } | |
178 | \f | |
f211082d JB |
179 | /* Make a graphics context for face FACE, which is on frame F, |
180 | if that can be done. */ | |
c115973b JB |
181 | |
182 | static void | |
183 | build_face (f, face) | |
184 | struct frame* f; | |
185 | struct face* face; | |
186 | { | |
187 | GC gc; | |
188 | XGCValues xgcv; | |
189 | unsigned long mask; | |
190 | ||
f211082d JB |
191 | if (face->foreground != FACE_DEFAULT) |
192 | xgcv.foreground = face->foreground; | |
193 | else | |
194 | xgcv. foreground = f->display.x->foreground_pixel; | |
195 | if (face->background != FACE_DEFAULT) | |
196 | xgcv.background = face->background; | |
197 | else | |
198 | xgcv. background = f->display.x->background_pixel; | |
199 | if (face->font && (int) face->font != FACE_DEFAULT) | |
200 | xgcv.font = face->font->fid; | |
201 | else | |
202 | xgcv.font = f->display.x->font->fid; | |
c115973b JB |
203 | xgcv.graphics_exposures = 0; |
204 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; | |
205 | gc = XCreateGC (x_current_display, FRAME_X_WINDOW (f), | |
206 | mask, &xgcv); | |
207 | #if 0 | |
f211082d JB |
208 | if (face->stipple && face->stipple != FACE_DEFAULT) |
209 | XSetStipple (x_current_display, gc, face->stipple); | |
c115973b | 210 | #endif |
f211082d | 211 | face->gc = gc; |
c115973b JB |
212 | } |
213 | \f | |
7b7739b1 JB |
214 | /* Modify face TO by copying from FROM all properties which have |
215 | nondefault settings. */ | |
216 | ||
217 | static void | |
218 | merge_faces (from, to) | |
219 | struct face *from, *to; | |
220 | { | |
221 | if (from->font != (XFontStruct *)FACE_DEFAULT) | |
222 | { | |
223 | to->font = from->font; | |
224 | } | |
225 | if (from->foreground != FACE_DEFAULT) | |
226 | to->foreground = from->foreground; | |
227 | if (from->background != FACE_DEFAULT) | |
228 | to->background = from->background; | |
f211082d JB |
229 | if (from->stipple != FACE_DEFAULT) |
230 | to->stipple = from->stipple; | |
7b7739b1 JB |
231 | if (from->underline) |
232 | to->underline = from->underline; | |
233 | } | |
234 | ||
f211082d JB |
235 | struct sortvec |
236 | { | |
237 | Lisp_Object overlay; | |
238 | int beg, end; | |
239 | int priority; | |
240 | }; | |
241 | ||
7b7739b1 JB |
242 | /* Return the display face associated with a buffer position POS. |
243 | Store into *ENDPTR the position at which a different face is needed. | |
244 | This does not take account of glyphs that specify their own face codes. | |
f211082d | 245 | F is the frame in use for display, and W is the window. */ |
7b7739b1 JB |
246 | |
247 | struct face * | |
f211082d | 248 | compute_char_face (f, w, pos, endptr) |
7b7739b1 | 249 | struct frame *f; |
f211082d | 250 | struct window *w; |
7b7739b1 JB |
251 | int pos; |
252 | int *endptr; | |
253 | { | |
254 | struct face face; | |
255 | Lisp_Object prop, position, length; | |
256 | Lisp_Object overlay, start, end; | |
257 | int i, j, noverlays; | |
258 | int facecode; | |
259 | int endpos; | |
260 | Lisp_Object *overlay_vec; | |
261 | int len; | |
f211082d JB |
262 | struct sortvec *sortvec; |
263 | Lisp_Object frame; | |
264 | ||
265 | XSET (frame, Lisp_Frame, f); | |
7b7739b1 JB |
266 | |
267 | XFASTINT (position) = pos; | |
268 | prop = Fget_text_property (position, Qface); | |
269 | ||
270 | len = 10; | |
271 | overlay_vec = (Lisp_Object *) xmalloc (len * sizeof (Lisp_Object)); | |
272 | noverlays = overlays_at (pos, &overlay_vec, &len, &endpos); | |
273 | ||
274 | /* Optimize the default case. */ | |
275 | if (noverlays == 0 && NILP (prop)) | |
f211082d | 276 | return FRAME_DEFAULT_FACE (f); |
7b7739b1 | 277 | |
f211082d | 278 | bcopy (FRAME_DEFAULT_FACE (f), &face, sizeof (struct face)); |
7b7739b1 JB |
279 | |
280 | if (!NILP (prop)) | |
281 | { | |
f211082d JB |
282 | facecode = face_name_id_number (frame, prop); |
283 | if (facecode >= 0 && facecode < FRAME_N_FACES (f) | |
284 | && FRAME_FACES (f) [facecode] != 0) | |
285 | merge_faces (FRAME_FACES (f) [facecode], &face); | |
7b7739b1 JB |
286 | } |
287 | ||
f211082d JB |
288 | /* Put the valid and relevant overlays into sortvec. */ |
289 | sortvec = (struct sortvec *) alloca (noverlays * sizeof (struct sortvec)); | |
290 | ||
7b7739b1 JB |
291 | for (i = 0, j = 0; i < noverlays; i++) |
292 | { | |
293 | overlay = overlay_vec[i]; | |
294 | ||
295 | if (OVERLAY_VALID (overlay) | |
296 | && OVERLAY_POSITION (OVERLAY_START (overlay)) > 0 | |
297 | && OVERLAY_POSITION (OVERLAY_END (overlay)) > 0) | |
f211082d JB |
298 | { |
299 | Lisp_Object window; | |
300 | window = Foverlay_get (overlay, Qwindow); | |
301 | ||
302 | /* Also ignore overlays limited to one window | |
303 | if it's not the window we are using. */ | |
304 | if (NILP (window) || XWINDOW (window) == w) | |
305 | { | |
306 | Lisp_Object tem; | |
307 | ||
308 | /* This overlay is good and counts: | |
309 | put it in sortvec. */ | |
310 | sortvec[j].overlay = overlay; | |
311 | sortvec[j].beg = OVERLAY_POSITION (OVERLAY_START (overlay)); | |
312 | sortvec[j].end = OVERLAY_POSITION (OVERLAY_END (overlay)); | |
313 | tem = Foverlay_get (overlay, Qpriority); | |
314 | if (INTEGERP (tem)) | |
315 | sortvec[j].priority = XINT (tem); | |
316 | else | |
317 | sortvec[j].priority = 0; | |
318 | j++; | |
319 | } | |
320 | } | |
7b7739b1 JB |
321 | } |
322 | noverlays = j; | |
323 | ||
f211082d JB |
324 | /* Sort the overlays into the proper order: increasing priority. */ |
325 | ||
326 | qsort (sortvec, noverlays, sizeof (struct sortvec), sort_overlays); | |
7b7739b1 JB |
327 | |
328 | /* Now merge the overlay data in that order. */ | |
329 | ||
330 | for (i = 0; i < noverlays; i++) | |
331 | { | |
332 | prop = Foverlay_get (overlay_vec[i], Qface); | |
333 | if (!NILP (prop)) | |
334 | { | |
335 | Lisp_Object oend; | |
336 | int oendpos; | |
337 | ||
f211082d JB |
338 | facecode = face_name_id_number (frame, prop); |
339 | if (facecode >= 0 && facecode < FRAME_N_FACES (f) | |
340 | && FRAME_FACES (f) [facecode] != 0) | |
341 | merge_faces (FRAME_FACES (f) [facecode], &face); | |
7b7739b1 JB |
342 | |
343 | oend = OVERLAY_END (overlay_vec[i]); | |
344 | oendpos = OVERLAY_POSITION (oend); | |
345 | if (oendpos > endpos) | |
346 | endpos = oendpos; | |
347 | } | |
348 | } | |
349 | ||
350 | xfree (overlay_vec); | |
351 | ||
352 | *endptr = endpos; | |
353 | ||
354 | return get_display_face (f, &face); | |
355 | } | |
356 | ||
367bf237 | 357 | static int |
f211082d JB |
358 | sort_overlays (s1, s2) |
359 | struct sortvec *s1, *s2; | |
360 | { | |
361 | if (s1->priority != s2->priority) | |
362 | return s1->priority - s2->priority; | |
363 | if (s1->beg != s2->beg) | |
364 | return s1->beg - s2->beg; | |
365 | if (s1->end != s2->end) | |
366 | return s2->end - s1->end; | |
367 | return 0; | |
368 | } | |
369 | ||
7b7739b1 JB |
370 | /* Return the display face to use to display a special glyph |
371 | which selects FACE_CODE as the face ID, | |
372 | assuming that ordinarily the face would be BASIC_FACE. | |
373 | F is the frame. */ | |
374 | ||
375 | struct face * | |
376 | compute_glyph_face (f, basic_face, face_code) | |
377 | struct frame *f; | |
378 | struct face *basic_face; | |
379 | int face_code; | |
380 | { | |
381 | struct face face; | |
382 | ||
383 | bcopy (basic_face, &face, sizeof (struct face)); | |
384 | ||
f211082d JB |
385 | if (face_code >= 0 && face_code < FRAME_N_FACES (f) |
386 | && FRAME_FACES (f) [face_code] != 0) | |
387 | merge_faces (FRAME_FACES (f) [face_code], &face); | |
7b7739b1 JB |
388 | |
389 | return get_display_face (f, &face); | |
390 | } | |
391 | \f | |
c115973b JB |
392 | /* Given a frame face, return an equivalent display face |
393 | (one which has a graphics context). */ | |
394 | ||
395 | static struct face * | |
396 | get_display_face (f, face) | |
397 | struct frame *f; | |
398 | struct face *face; | |
399 | { | |
400 | struct face *result; | |
401 | ||
402 | /* Does the face have a GC already? */ | |
f211082d | 403 | if (face->gc) |
c115973b JB |
404 | return face; |
405 | ||
f211082d JB |
406 | /* If it's equivalent to the default face, use that. */ |
407 | if (face->font == FRAME_DEFAULT_FACE (f)->font | |
408 | && face->foreground == FRAME_DEFAULT_FACE (f)->foreground | |
409 | && face->background == FRAME_DEFAULT_FACE (f)->background | |
410 | && face->stipple == FRAME_DEFAULT_FACE (f)->stipple | |
411 | && face->underline == FRAME_DEFAULT_FACE (f)->underline) | |
c115973b | 412 | { |
f211082d JB |
413 | if (!FRAME_DEFAULT_FACE (f)->gc) |
414 | build_face (f, FRAME_DEFAULT_FACE (f)); | |
415 | return FRAME_DEFAULT_FACE (f); | |
c115973b JB |
416 | } |
417 | ||
418 | /* If it's equivalent to the mode line face, use that. */ | |
f211082d JB |
419 | if (face->font == FRAME_MODE_LINE_FACE (f)->font |
420 | && face->foreground == FRAME_MODE_LINE_FACE (f)->foreground | |
421 | && face->background == FRAME_MODE_LINE_FACE (f)->background | |
422 | && face->stipple == FRAME_MODE_LINE_FACE (f)->stipple | |
423 | && face->underline == FRAME_MODE_LINE_FACE (f)->underline) | |
c115973b | 424 | { |
f211082d JB |
425 | if (!FRAME_MODE_LINE_FACE (f)->gc) |
426 | build_face (f, FRAME_MODE_LINE_FACE (f)); | |
427 | return FRAME_MODE_LINE_FACE (f); | |
c115973b JB |
428 | } |
429 | ||
430 | /* Get a specialized display face. */ | |
431 | return get_cached_face (f, face); | |
432 | } | |
433 | ||
434 | \f | |
435 | /* Allocate a new face */ | |
436 | static struct face * | |
437 | allocate_face () | |
438 | { | |
439 | struct face *result = (struct face *) xmalloc (sizeof (struct face)); | |
440 | bzero (result, sizeof (struct face)); | |
7b7739b1 JB |
441 | result->font = (XFontStruct *) FACE_DEFAULT; |
442 | result->foreground = FACE_DEFAULT; | |
443 | result->background = FACE_DEFAULT; | |
f211082d | 444 | result->stipple = FACE_DEFAULT; |
c115973b JB |
445 | return result; |
446 | } | |
447 | ||
448 | /* Make face id ID valid on frame F. */ | |
449 | ||
450 | void | |
451 | ensure_face_ready (f, id) | |
452 | struct frame *f; | |
453 | int id; | |
454 | { | |
f211082d | 455 | if (FRAME_N_FACES (f) <= id) |
c115973b JB |
456 | { |
457 | int n = id + 10; | |
458 | int i; | |
f211082d JB |
459 | if (!FRAME_N_FACES (f)) |
460 | FRAME_FACES (f) | |
461 | = (struct face **) xmalloc (sizeof (struct face *) * n); | |
c115973b | 462 | else |
f211082d JB |
463 | FRAME_FACES (f) |
464 | = (struct face **) xrealloc (FRAME_FACES (f), | |
465 | sizeof (struct face *) * n); | |
c115973b | 466 | |
f211082d JB |
467 | bzero (FRAME_FACES (f) + FRAME_N_FACES (f), |
468 | (n - FRAME_N_FACES (f)) * sizeof (struct face *)); | |
469 | FRAME_N_FACES (f) = n; | |
c115973b JB |
470 | } |
471 | ||
f211082d JB |
472 | if (FRAME_FACES (f) [id] == 0) |
473 | FRAME_FACES (f) [id] = allocate_face (); | |
c115973b JB |
474 | } |
475 | \f | |
476 | /* Allocating, freeing, and duplicating fonts, colors, and pixmaps. */ | |
477 | ||
478 | #ifdef HAVE_X_WINDOWS | |
479 | ||
480 | static XFontStruct * | |
481 | load_font (f, name) | |
482 | struct frame *f; | |
483 | Lisp_Object name; | |
484 | { | |
485 | XFontStruct *font; | |
486 | ||
7b7739b1 JB |
487 | if (NILP (name)) |
488 | return (XFontStruct *) FACE_DEFAULT; | |
489 | ||
c115973b JB |
490 | CHECK_STRING (name, 0); |
491 | BLOCK_INPUT; | |
492 | font = XLoadQueryFont (x_current_display, (char *) XSTRING (name)->data); | |
493 | UNBLOCK_INPUT; | |
494 | ||
495 | if (! font) | |
496 | Fsignal (Qerror, Fcons (build_string ("undefined font"), | |
497 | Fcons (name, Qnil))); | |
498 | return font; | |
499 | } | |
500 | ||
501 | static void | |
502 | unload_font (f, font) | |
503 | struct frame *f; | |
504 | XFontStruct *font; | |
505 | { | |
506 | if (!font || font == ((XFontStruct *) FACE_DEFAULT)) | |
507 | return; | |
508 | XFreeFont (x_current_display, font); | |
509 | } | |
510 | ||
511 | static unsigned long | |
512 | load_color (f, name) | |
513 | struct frame *f; | |
514 | Lisp_Object name; | |
515 | { | |
516 | Display *dpy = x_current_display; | |
517 | Colormap cmap; | |
518 | XColor color; | |
519 | int result; | |
520 | ||
7b7739b1 JB |
521 | if (NILP (name)) |
522 | return FACE_DEFAULT; | |
523 | ||
f211082d | 524 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (x_current_display)); |
c115973b JB |
525 | |
526 | CHECK_STRING (name, 0); | |
527 | BLOCK_INPUT; | |
528 | result = XParseColor (dpy, cmap, (char *) XSTRING (name)->data, &color); | |
529 | UNBLOCK_INPUT; | |
530 | if (! result) | |
531 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
532 | Fcons (name, Qnil))); | |
533 | BLOCK_INPUT; | |
534 | result = XAllocColor (dpy, cmap, &color); | |
535 | UNBLOCK_INPUT; | |
536 | if (! result) | |
537 | Fsignal (Qerror, Fcons (build_string ("X server cannot allocate color"), | |
538 | Fcons (name, Qnil))); | |
539 | return (unsigned long) color.pixel; | |
540 | } | |
541 | ||
542 | static void | |
543 | unload_color (f, pixel) | |
544 | struct frame *f; | |
545 | Pixel pixel; | |
546 | { | |
547 | Colormap cmap; | |
548 | Display *dpy = x_current_display; | |
549 | if (pixel == FACE_DEFAULT) | |
550 | return; | |
f211082d | 551 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (x_current_display)); |
c115973b JB |
552 | BLOCK_INPUT; |
553 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
554 | UNBLOCK_INPUT; | |
555 | } | |
556 | ||
557 | #endif /* HAVE_X_WINDOWS */ | |
558 | ||
559 | \f | |
560 | /* frames */ | |
561 | ||
562 | void | |
563 | init_frame_faces (f) | |
f211082d | 564 | struct frame *f; |
c115973b JB |
565 | { |
566 | struct frame *other_frame = 0; | |
567 | Lisp_Object rest; | |
568 | ||
569 | for (rest = Vframe_list; !NILP (rest); rest = Fcdr (rest)) | |
570 | { | |
571 | struct frame *f2 = XFRAME (Fcar (rest)); | |
f211082d | 572 | if (f2 != f && FRAME_X_P (f2)) |
c115973b JB |
573 | { |
574 | other_frame = f2; | |
575 | break; | |
576 | } | |
577 | } | |
578 | ||
579 | if (other_frame) | |
580 | { | |
581 | /* Make sure this frame's face vector is as big as the others. */ | |
f211082d JB |
582 | FRAME_N_FACES (f) = FRAME_N_FACES (other_frame); |
583 | FRAME_FACES (f) | |
584 | = (struct face **) xmalloc (FRAME_N_FACES (f) * sizeof (struct face *)); | |
c115973b JB |
585 | |
586 | /* Make sure the frame has the two basic faces. */ | |
f211082d JB |
587 | FRAME_DEFAULT_FACE (f) |
588 | = copy_face (FRAME_DEFAULT_FACE (other_frame)); | |
589 | FRAME_MODE_LINE_FACE (f) | |
590 | = copy_face (FRAME_MODE_LINE_FACE (other_frame)); | |
c115973b JB |
591 | } |
592 | } | |
593 | ||
594 | ||
595 | /* Called from Fdelete_frame? */ | |
596 | ||
597 | void | |
598 | free_screen_faces (f) | |
599 | struct frame *f; | |
600 | { | |
601 | Display *dpy = x_current_display; | |
602 | int i; | |
603 | ||
f211082d | 604 | for (i = 0; i < FRAME_N_FACES (f); i++) |
c115973b | 605 | { |
f211082d | 606 | struct face *face = FRAME_FACES (f) [i]; |
c115973b JB |
607 | if (! face) |
608 | continue; | |
f211082d JB |
609 | if (face->gc) |
610 | XFreeGC (dpy, face->gc); | |
c115973b JB |
611 | unload_font (f, face->font); |
612 | unload_color (f, face->foreground); | |
613 | unload_color (f, face->background); | |
f211082d JB |
614 | #if 0 |
615 | unload_pixmap (f, face->stipple); | |
616 | #endif | |
c115973b JB |
617 | xfree (face); |
618 | } | |
f211082d JB |
619 | xfree (FRAME_FACES (f)); |
620 | FRAME_FACES (f) = 0; | |
621 | FRAME_N_FACES (f) = 0; | |
c115973b JB |
622 | } |
623 | ||
624 | \f | |
625 | /* Lisp interface */ | |
626 | ||
627 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, 1, 1, 0, | |
628 | "") | |
629 | (frame) | |
630 | Lisp_Object frame; | |
631 | { | |
632 | CHECK_FRAME (frame, 0); | |
633 | return XFRAME (frame)->face_alist; | |
634 | } | |
635 | ||
636 | DEFUN ("set-frame-face-alist", Fset_frame_face_alist, Sset_frame_face_alist, | |
637 | 2, 2, 0, "") | |
638 | (frame, value) | |
639 | Lisp_Object frame, value; | |
640 | { | |
641 | CHECK_FRAME (frame, 0); | |
642 | XFRAME (frame)->face_alist = value; | |
643 | return value; | |
644 | } | |
645 | ||
646 | ||
647 | DEFUN ("make-face-internal", Fmake_face_internal, Smake_face_internal, 1, 1, 0, | |
648 | "Create face number FACE-ID on all frames.") | |
649 | (face_id) | |
650 | Lisp_Object face_id; | |
651 | { | |
652 | Lisp_Object rest; | |
653 | int id = XINT (face_id); | |
654 | ||
f211082d JB |
655 | CHECK_NUMBER (face_id, 0); |
656 | if (id < 0 || id >= next_face_id) | |
657 | error ("Face id out of range"); | |
c115973b JB |
658 | |
659 | for (rest = Vframe_list; !NILP (rest); rest = XCONS (rest)->cdr) | |
660 | { | |
661 | struct frame *f = XFRAME (XCONS (rest)->car); | |
662 | ensure_face_ready (f, id); | |
663 | } | |
664 | return Qnil; | |
665 | } | |
666 | ||
667 | ||
668 | DEFUN ("set-face-attribute-internal", Fset_face_attribute_internal, | |
669 | Sset_face_attribute_internal, 4, 4, 0, "") | |
670 | (face_id, attr_name, attr_value, frame) | |
671 | Lisp_Object face_id, attr_name, attr_value, frame; | |
672 | { | |
673 | struct face *face; | |
674 | struct frame *f; | |
675 | int magic_p; | |
676 | int id; | |
677 | ||
678 | CHECK_FRAME (frame, 0); | |
f211082d | 679 | CHECK_NUMBER (face_id, 0); |
c115973b JB |
680 | CHECK_SYMBOL (attr_name, 0); |
681 | ||
682 | f = XFRAME (frame); | |
683 | id = XINT (face_id); | |
f211082d JB |
684 | if (id < 0 || id >= next_face_id) |
685 | error ("Face id out of range"); | |
c115973b JB |
686 | |
687 | ensure_face_ready (f, id); | |
f211082d | 688 | face = FRAME_FACES (f) [XFASTINT (face_id)]; |
c115973b JB |
689 | |
690 | if (EQ (attr_name, intern ("font"))) | |
691 | { | |
f211082d | 692 | XFontStruct *font = load_font (f, attr_value); |
c115973b JB |
693 | unload_font (f, face->font); |
694 | face->font = font; | |
c115973b JB |
695 | } |
696 | else if (EQ (attr_name, intern ("foreground"))) | |
697 | { | |
f211082d | 698 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
699 | unload_color (f, face->foreground); |
700 | face->foreground = new_color; | |
c115973b JB |
701 | } |
702 | else if (EQ (attr_name, intern ("background"))) | |
703 | { | |
f211082d | 704 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
705 | unload_color (f, face->background); |
706 | face->background = new_color; | |
c115973b JB |
707 | } |
708 | #if 0 | |
709 | else if (EQ (attr_name, intern ("background-pixmap"))) | |
710 | { | |
c115973b JB |
711 | unsigned int w, h, d; |
712 | unsigned long new_pixmap = load_pixmap (f, attr_value, &w, &h, &d, 0); | |
f211082d JB |
713 | unload_pixmap (f, face->stipple); |
714 | if (NILP (attr_value)) | |
715 | new_pixmap = 0; | |
716 | face->stipple = new_pixmap; | |
c115973b JB |
717 | face->pixmap_w = w; |
718 | face->pixmap_h = h; | |
719 | /* face->pixmap_depth = d; */ | |
c115973b JB |
720 | } |
721 | #endif /* 0 */ | |
722 | else if (EQ (attr_name, intern ("underline"))) | |
723 | { | |
724 | int new = !NILP (attr_value); | |
725 | face->underline = new; | |
726 | } | |
727 | else | |
728 | error ("unknown face attribute"); | |
729 | ||
730 | if (id == 0) | |
731 | { | |
732 | BLOCK_INPUT; | |
f211082d JB |
733 | if (FRAME_DEFAULT_FACE (f)->gc != 0) |
734 | XFreeGC (x_current_display, FRAME_DEFAULT_FACE (f)->gc); | |
735 | build_face (f, FRAME_DEFAULT_FACE (f)); | |
c115973b JB |
736 | UNBLOCK_INPUT; |
737 | } | |
738 | ||
739 | if (id == 1) | |
740 | { | |
741 | BLOCK_INPUT; | |
f211082d JB |
742 | if (FRAME_MODE_LINE_FACE (f)->gc != 0) |
743 | XFreeGC (x_current_display, FRAME_MODE_LINE_FACE (f)->gc); | |
744 | build_face (f, FRAME_MODE_LINE_FACE (f)); | |
c115973b JB |
745 | UNBLOCK_INPUT; |
746 | } | |
747 | ||
748 | return Qnil; | |
749 | } | |
750 | ||
751 | DEFUN ("internal-next-face-id", Finternal_next_face_id, Sinternal_next_face_id, | |
752 | 0, 0, 0, "") | |
753 | () | |
754 | { | |
755 | return make_number (next_face_id++); | |
756 | } | |
f211082d JB |
757 | |
758 | /* Return the face id for name NAME on frame FRAME. | |
759 | (It should be the same for all frames, | |
760 | but it's as easy to use the "right" frame to look it up | |
761 | as to use any other one.) */ | |
762 | ||
763 | static Lisp_Object | |
764 | face_name_id_number (frame, name) | |
765 | Lisp_Object frame, name; | |
766 | { | |
767 | Lisp_Object tem; | |
768 | ||
769 | CHECK_FRAME (frame, 0); | |
770 | tem = Fcdr (Fassq (name, XFRAME (frame)->face_alist)); | |
771 | CHECK_VECTOR (tem, 0); | |
772 | tem = XVECTOR (tem)->contents[2]; | |
773 | CHECK_NUMBER (tem, 0); | |
774 | return XINT (tem); | |
775 | } | |
c115973b JB |
776 | \f |
777 | void | |
f211082d | 778 | syms_of_xfaces () |
c115973b | 779 | { |
f211082d JB |
780 | Qwindow = intern ("window"); |
781 | staticpro (&Qwindow); | |
782 | Qface = intern ("face"); | |
783 | staticpro (&Qface); | |
784 | Qpriority = intern ("priority"); | |
785 | staticpro (&Qpriority); | |
786 | ||
c115973b JB |
787 | defsubr (&Sframe_face_alist); |
788 | defsubr (&Sset_frame_face_alist); | |
789 | defsubr (&Smake_face_internal); | |
790 | defsubr (&Sset_face_attribute_internal); | |
791 | defsubr (&Sinternal_next_face_id); | |
792 | } |