Commit | Line | Data |
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cb637678 | 1 | /* "Face" primitives. |
3a22ee35 | 2 | Copyright (C) 1993, 1994 Free Software Foundation. |
7b7739b1 | 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 | ||
18160b98 | 25 | #include <config.h> |
c115973b JB |
26 | #include "lisp.h" |
27 | ||
cb637678 JB |
28 | #ifdef HAVE_X_WINDOWS |
29 | ||
c115973b JB |
30 | #include "xterm.h" |
31 | #include "buffer.h" | |
f211082d | 32 | #include "dispextern.h" |
7b7739b1 | 33 | #include "frame.h" |
357f32fc | 34 | #include "blockinput.h" |
b6d40e46 | 35 | #include "window.h" |
bde7c500 | 36 | #include "intervals.h" |
c115973b | 37 | |
657070ac JB |
38 | /* Compensate for bug in Xos.h on some systems, on which it requires |
39 | time.h. On some such systems, Xos.h tries to redefine struct | |
40 | timeval and struct timezone if USG is #defined while it is | |
41 | #included. */ | |
6233db35 | 42 | #ifdef XOS_NEEDS_TIME_H |
657070ac | 43 | |
e11d186d | 44 | #include <time.h> |
657070ac JB |
45 | #undef USG |
46 | #include <X11/Xos.h> | |
47 | #define USG | |
e11d186d | 48 | #define __TIMEVAL__ |
e11d186d | 49 | |
657070ac | 50 | #else |
7a4d2269 | 51 | |
c115973b JB |
52 | #include <X11/Xos.h> |
53 | ||
657070ac JB |
54 | #endif |
55 | ||
cb637678 JB |
56 | \f |
57 | /* An explanation of the face data structures. */ | |
58 | ||
59 | /* ========================= Face Data Structures ========================= | |
60 | ||
7b00de84 | 61 | Let FACE-NAME be a symbol naming a face. |
cb637678 | 62 | |
7b00de84 JB |
63 | Let FACE-VECTOR be (assq FACE-NAME (frame-face-alist FRAME)) |
64 | FACE-VECTOR is either nil, or a vector of the form | |
cb637678 JB |
65 | [face NAME ID FONT FOREGROUND BACKGROUND BACKGROUND-PIXMAP UNDERLINE-P] |
66 | where | |
67 | face is the symbol `face', | |
68 | NAME is the symbol with which this vector is associated (a backpointer), | |
69 | ID is the face ID, an integer used internally by the C code to identify | |
70 | the face, | |
71 | FONT, FOREGROUND, and BACKGROUND are strings naming the fonts and colors | |
72 | to use with the face, | |
73 | BACKGROUND-PIXMAP is the name of an x bitmap filename, which we don't | |
74 | use right now, and | |
75 | UNDERLINE-P is non-nil if the face should be underlined. | |
7b00de84 JB |
76 | If any of these elements are nil, that parameter is considered |
77 | unspecified; parameters from faces specified by lower-priority | |
78 | overlays or text properties, or the parameters of the frame itself, | |
79 | can show through. (lisp/faces.el maintains these lists.) | |
80 | ||
81 | (assq FACE-NAME global-face-data) returns a vector describing the | |
82 | global parameters for that face. | |
83 | ||
84 | Let PARAM-FACE be FRAME->display.x->param_faces[Faref (FACE-VECTOR, 2)]. | |
85 | PARAM_FACE is a struct face whose members are the Xlib analogues of | |
86 | the parameters in FACE-VECTOR. If an element of FACE-VECTOR is | |
87 | nil, then the corresponding member of PARAM_FACE is FACE_DEFAULT. | |
88 | These faces are called "parameter faces", because they're the ones | |
89 | lisp manipulates to control what gets displayed. Elements 0 and 1 | |
90 | of FRAME->display.x->param_faces are special - they describe the | |
91 | default and mode line faces. None of the faces in param_faces have | |
92 | GC's. (See src/dispextern.h for the definiton of struct face. | |
93 | lisp/faces.el maintains the isomorphism between face_alist and | |
94 | param_faces.) | |
95 | ||
96 | The functions compute_char_face and compute_glyph_face find and | |
97 | combine the parameter faces associated with overlays and text | |
98 | properties. The resulting faces are called "computed faces"; none | |
99 | of their members are FACE_DEFAULT; they are completely specified. | |
100 | They then call intern_compute_face to search | |
101 | FRAME->display.x->computed_faces for a matching face, add one if | |
102 | none is found, and return the index into | |
103 | FRAME->display.x->computed_faces. FRAME's glyph matrices use these | |
104 | indices to record the faces of the matrix characters, and the X | |
105 | display hooks consult compute_faces to decide how to display these | |
106 | characters. Elements 0 and 1 of computed_faces always describe the | |
107 | default and mode-line faces. | |
108 | ||
cd0bb842 RS |
109 | Each computed face belongs to a particular frame. |
110 | ||
42120bc7 RS |
111 | Computed faces have graphics contexts some of the time. |
112 | intern_face builds a GC for a specified computed face | |
113 | if it doesn't have one already. | |
114 | clear_face_cache clears out the GCs of all computed faces. | |
115 | This is done from time to time so that we don't hold on to | |
116 | lots of GCs that are no longer needed. | |
7b00de84 JB |
117 | |
118 | Constraints: | |
119 | ||
120 | Symbols naming faces must have associations on all frames; for any | |
121 | FRAME, for all FACE-NAME, if (assq FACE-NAME (frame-face-alist | |
122 | FRAME)) is non-nil, it must be non-nil for all frames. | |
123 | ||
124 | Analogously, indices into param_faces must be valid on all frames; | |
125 | if param_faces[i] is a non-zero face pointer on one frame, then it | |
126 | must be filled in on all frames. Code assumes that face ID's can | |
127 | be used on any frame. | |
cb637678 JB |
128 | |
129 | Some subtleties: | |
7b7739b1 | 130 | |
7b00de84 JB |
131 | Why do we keep param_faces and computed_faces separate? |
132 | computed_faces contains an element for every combination of facial | |
133 | parameters we have ever displayed. indices into param_faces have | |
134 | to be valid on all frames. If they were the same array, then that | |
135 | array would grow very large on all frames, because any facial | |
136 | combination displayed on any frame would need to be a valid entry | |
42120bc7 | 137 | on all frames. */ |
cb637678 JB |
138 | \f |
139 | /* Definitions and declarations. */ | |
140 | ||
c115973b JB |
141 | /* The number of face-id's in use (same for all frames). */ |
142 | int next_face_id; | |
143 | ||
bc0db68d RS |
144 | /* The number of the face to use to indicate the region. */ |
145 | int region_face; | |
146 | ||
9516fe94 RS |
147 | /* This is what appears in a slot in a face to signify that the face |
148 | does not specify that display aspect. */ | |
7b7739b1 JB |
149 | #define FACE_DEFAULT (~0) |
150 | ||
6f134486 | 151 | Lisp_Object Qface, Qmouse_face; |
cd0bb842 | 152 | Lisp_Object Qpixmap_spec_p; |
f211082d | 153 | |
415445e2 | 154 | int face_name_id_number ( /* FRAME_PTR, Lisp_Object name */ ); |
cb637678 | 155 | |
415445e2 | 156 | struct face *intern_face ( /* FRAME_PTR, struct face * */ ); |
7b00de84 JB |
157 | static int new_computed_face ( /* FRAME_PTR, struct face * */ ); |
158 | static int intern_computed_face ( /* FRAME_PTR, struct face * */ ); | |
415445e2 | 159 | static void ensure_face_ready ( /* FRAME_PTR, int id */ ); |
254a1b66 | 160 | void recompute_basic_faces ( /* FRAME_PTR f */ ); |
c115973b | 161 | \f |
cb637678 JB |
162 | /* Allocating, copying, and comparing struct faces. */ |
163 | ||
164 | /* Allocate a new face */ | |
165 | static struct face * | |
166 | allocate_face () | |
167 | { | |
168 | struct face *result = (struct face *) xmalloc (sizeof (struct face)); | |
169 | bzero (result, sizeof (struct face)); | |
170 | result->font = (XFontStruct *) FACE_DEFAULT; | |
171 | result->foreground = FACE_DEFAULT; | |
172 | result->background = FACE_DEFAULT; | |
173 | result->stipple = FACE_DEFAULT; | |
174 | return result; | |
175 | } | |
c115973b | 176 | |
cb637678 | 177 | /* Make a new face that's a copy of an existing one. */ |
c115973b JB |
178 | static struct face * |
179 | copy_face (face) | |
180 | struct face *face; | |
181 | { | |
182 | struct face *result = allocate_face (); | |
183 | ||
184 | result->font = face->font; | |
185 | result->foreground = face->foreground; | |
186 | result->background = face->background; | |
f211082d | 187 | result->stipple = face->stipple; |
c115973b | 188 | result->underline = face->underline; |
cd0bb842 RS |
189 | result->pixmap_h = face->pixmap_h; |
190 | result->pixmap_w = face->pixmap_w; | |
c115973b JB |
191 | |
192 | return result; | |
193 | } | |
194 | ||
195 | static int | |
196 | face_eql (face1, face2) | |
197 | struct face *face1, *face2; | |
198 | { | |
cb637678 | 199 | return ( face1->font == face2->font |
c115973b JB |
200 | && face1->foreground == face2->foreground |
201 | && face1->background == face2->background | |
cb637678 JB |
202 | && face1->stipple == face2->stipple |
203 | && face1->underline == face2->underline); | |
c115973b | 204 | } |
cb637678 | 205 | \f |
42120bc7 | 206 | /* Managing graphics contexts of faces. */ |
c115973b | 207 | |
42120bc7 | 208 | /* Given a computed face, construct its graphics context if necessary. */ |
cb637678 JB |
209 | |
210 | struct face * | |
211 | intern_face (f, face) | |
212 | struct frame *f; | |
213 | struct face *face; | |
c115973b JB |
214 | { |
215 | GC gc; | |
216 | XGCValues xgcv; | |
217 | unsigned long mask; | |
218 | ||
42120bc7 RS |
219 | if (face->gc) |
220 | return face; | |
221 | ||
660ed669 JB |
222 | BLOCK_INPUT; |
223 | ||
f211082d JB |
224 | if (face->foreground != FACE_DEFAULT) |
225 | xgcv.foreground = face->foreground; | |
226 | else | |
660ed669 JB |
227 | xgcv.foreground = f->display.x->foreground_pixel; |
228 | ||
f211082d JB |
229 | if (face->background != FACE_DEFAULT) |
230 | xgcv.background = face->background; | |
231 | else | |
660ed669 JB |
232 | xgcv.background = f->display.x->background_pixel; |
233 | ||
f211082d JB |
234 | if (face->font && (int) face->font != FACE_DEFAULT) |
235 | xgcv.font = face->font->fid; | |
236 | else | |
237 | xgcv.font = f->display.x->font->fid; | |
660ed669 | 238 | |
c115973b | 239 | xgcv.graphics_exposures = 0; |
660ed669 | 240 | |
c115973b | 241 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; |
cd0bb842 RS |
242 | if (face->stipple && face->stipple != FACE_DEFAULT) |
243 | xgcv.fill_style = FillStippled; | |
244 | ||
42120bc7 | 245 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), |
c115973b | 246 | mask, &xgcv); |
660ed669 | 247 | |
f211082d | 248 | if (face->stipple && face->stipple != FACE_DEFAULT) |
cd0bb842 | 249 | XSetStipple (FRAME_X_DISPLAY (f), gc, x_bitmap_pixmap (f, face->stipple)); |
660ed669 | 250 | |
f211082d | 251 | face->gc = gc; |
660ed669 JB |
252 | |
253 | UNBLOCK_INPUT; | |
42120bc7 RS |
254 | |
255 | return face; | |
c115973b | 256 | } |
cb637678 | 257 | |
42120bc7 RS |
258 | /* Clear out all graphics contexts for all computed faces |
259 | except for the default and mode line faces. | |
260 | This should be done from time to time just to avoid | |
261 | keeping too many graphics contexts that are no longer needed. */ | |
262 | ||
263 | void | |
264 | clear_face_cache () | |
265 | { | |
266 | Lisp_Object tail, frame; | |
267 | ||
268 | BLOCK_INPUT; | |
269 | FOR_EACH_FRAME (tail, frame) | |
270 | { | |
271 | FRAME_PTR f = XFRAME (frame); | |
272 | if (FRAME_X_P (f)) | |
273 | { | |
274 | int i; | |
275 | Display *dpy = FRAME_X_DISPLAY (f); | |
276 | ||
277 | for (i = 2; i < FRAME_N_COMPUTED_FACES (f); i++) | |
278 | { | |
279 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
280 | if (face->gc) | |
281 | XFreeGC (dpy, face->gc); | |
282 | face->gc = 0; | |
283 | } | |
284 | } | |
285 | } | |
286 | ||
287 | UNBLOCK_INPUT; | |
288 | } | |
289 | \f | |
cd0bb842 RS |
290 | /* Allocating, freeing, and duplicating fonts, colors, and pixmaps. |
291 | ||
292 | These functions operate on param faces only. | |
293 | Computed faces get their fonts, colors and pixmaps | |
294 | by merging param faces. */ | |
cb637678 JB |
295 | |
296 | static XFontStruct * | |
297 | load_font (f, name) | |
298 | struct frame *f; | |
299 | Lisp_Object name; | |
300 | { | |
301 | XFontStruct *font; | |
302 | ||
303 | if (NILP (name)) | |
304 | return (XFontStruct *) FACE_DEFAULT; | |
305 | ||
306 | CHECK_STRING (name, 0); | |
307 | BLOCK_INPUT; | |
42120bc7 | 308 | font = XLoadQueryFont (FRAME_X_DISPLAY (f), (char *) XSTRING (name)->data); |
cb637678 JB |
309 | UNBLOCK_INPUT; |
310 | ||
311 | if (! font) | |
312 | Fsignal (Qerror, Fcons (build_string ("undefined font"), | |
313 | Fcons (name, Qnil))); | |
314 | return font; | |
315 | } | |
316 | ||
317 | static void | |
318 | unload_font (f, font) | |
319 | struct frame *f; | |
320 | XFontStruct *font; | |
321 | { | |
322 | if (!font || font == ((XFontStruct *) FACE_DEFAULT)) | |
323 | return; | |
660ed669 JB |
324 | |
325 | BLOCK_INPUT; | |
42120bc7 | 326 | XFreeFont (FRAME_X_DISPLAY (f), font); |
660ed669 | 327 | UNBLOCK_INPUT; |
cb637678 JB |
328 | } |
329 | ||
330 | static unsigned long | |
331 | load_color (f, name) | |
332 | struct frame *f; | |
333 | Lisp_Object name; | |
334 | { | |
42120bc7 | 335 | Display *dpy = FRAME_X_DISPLAY (f); |
cb637678 JB |
336 | Colormap cmap; |
337 | XColor color; | |
338 | int result; | |
339 | ||
340 | if (NILP (name)) | |
341 | return FACE_DEFAULT; | |
342 | ||
42120bc7 | 343 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)); |
cb637678 JB |
344 | |
345 | CHECK_STRING (name, 0); | |
346 | BLOCK_INPUT; | |
347 | result = XParseColor (dpy, cmap, (char *) XSTRING (name)->data, &color); | |
348 | UNBLOCK_INPUT; | |
349 | if (! result) | |
350 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
351 | Fcons (name, Qnil))); | |
352 | BLOCK_INPUT; | |
353 | result = XAllocColor (dpy, cmap, &color); | |
354 | UNBLOCK_INPUT; | |
355 | if (! result) | |
356 | Fsignal (Qerror, Fcons (build_string ("X server cannot allocate color"), | |
357 | Fcons (name, Qnil))); | |
358 | return (unsigned long) color.pixel; | |
359 | } | |
360 | ||
361 | static void | |
362 | unload_color (f, pixel) | |
363 | struct frame *f; | |
7a4d2269 | 364 | unsigned long pixel; |
cb637678 JB |
365 | { |
366 | Colormap cmap; | |
42120bc7 | 367 | Display *dpy = FRAME_X_DISPLAY (f); |
32dc0866 JB |
368 | if (pixel == FACE_DEFAULT |
369 | || pixel == BLACK_PIX_DEFAULT | |
370 | || pixel == WHITE_PIX_DEFAULT) | |
cb637678 | 371 | return; |
42120bc7 | 372 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)); |
cb637678 JB |
373 | BLOCK_INPUT; |
374 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
375 | UNBLOCK_INPUT; | |
cd0bb842 RS |
376 | } |
377 | ||
378 | DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, | |
379 | "Return t if ARG is a valid pixmap specification.") | |
380 | (arg) | |
381 | Lisp_Object arg; | |
382 | { | |
383 | Lisp_Object height, width; | |
384 | ||
385 | return ((STRINGP (arg) | |
386 | || (CONSP (arg) | |
387 | && CONSP (Fcdr (arg)) | |
388 | && CONSP (Fcdr (Fcdr (arg))) | |
389 | && NILP (Fcdr (Fcdr (Fcdr (arg)))) | |
390 | && INTEGERP (width = Fcar (arg)) | |
391 | && INTEGERP (height = Fcar (Fcdr (arg))) | |
392 | && STRINGP (Fcar (Fcdr (Fcdr (arg)))) | |
393 | && XINT (width) > 0 | |
394 | && XINT (height) > 0 | |
395 | /* The string must have enough bits for width * height. */ | |
396 | && (XINT (width) * XINT (height) | |
397 | <= (XSTRING (Fcar (Fcdr (Fcdr (arg))))->size | |
398 | * (INTBITS / sizeof (int)))))) | |
399 | ? Qt : Qnil); | |
400 | } | |
401 | ||
402 | /* Load a bitmap according to NAME (which is either a file name | |
403 | or a pixmap spec). Return the bitmap_id (see xfns.c) | |
404 | or get an error if NAME is invalid. | |
405 | ||
406 | Store the bitmap width in *W_PTR and height in *H_PTR. */ | |
407 | ||
408 | static long | |
409 | load_pixmap (f, name, w_ptr, h_ptr) | |
410 | FRAME_PTR *f; | |
411 | Lisp_Object name; | |
412 | unsigned int *w_ptr, *h_ptr; | |
413 | { | |
414 | int bitmap_id; | |
415 | Lisp_Object tem; | |
416 | ||
417 | if (NILP (name)) | |
418 | return FACE_DEFAULT; | |
419 | ||
420 | tem = Fpixmap_spec_p (name); | |
421 | if (NILP (tem)) | |
422 | wrong_type_argument (Qpixmap_spec_p, name); | |
423 | ||
424 | BLOCK_INPUT; | |
425 | ||
426 | if (CONSP (name)) | |
427 | { | |
428 | /* Decode a bitmap spec into a bitmap. */ | |
429 | ||
430 | int h, w; | |
431 | Lisp_Object bits; | |
432 | ||
433 | w = XINT (Fcar (name)); | |
434 | h = XINT (Fcar (Fcdr (name))); | |
435 | bits = Fcar (Fcdr (Fcdr (name))); | |
436 | ||
437 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
438 | w, h); | |
439 | } | |
440 | else | |
441 | { | |
442 | /* It must be a string -- a file name. */ | |
443 | bitmap_id = x_create_bitmap_from_file (f, name); | |
444 | } | |
445 | UNBLOCK_INPUT; | |
446 | ||
447 | if (! bitmap_id) | |
448 | Fsignal (Qerror, Fcons (build_string ("undefined bitmap"), | |
449 | Fcons (name, Qnil))); | |
450 | ||
451 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
452 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
453 | ||
454 | return bitmap_id; | |
cb637678 JB |
455 | } |
456 | \f | |
7b00de84 | 457 | /* Managing parameter face arrays for frames. */ |
cb637678 | 458 | |
cb637678 JB |
459 | void |
460 | init_frame_faces (f) | |
660ed669 | 461 | FRAME_PTR f; |
cb637678 JB |
462 | { |
463 | ensure_face_ready (f, 0); | |
cb637678 | 464 | ensure_face_ready (f, 1); |
660ed669 | 465 | |
fffc2367 RS |
466 | FRAME_N_COMPUTED_FACES (f) = 0; |
467 | FRAME_SIZE_COMPUTED_FACES (f) = 0; | |
468 | ||
7b00de84 JB |
469 | new_computed_face (f, FRAME_PARAM_FACES (f)[0]); |
470 | new_computed_face (f, FRAME_PARAM_FACES (f)[1]); | |
660ed669 | 471 | recompute_basic_faces (f); |
7b37f67b | 472 | |
1120eb5e JB |
473 | /* Find another X frame. */ |
474 | { | |
475 | Lisp_Object tail, frame, result; | |
476 | ||
477 | result = Qnil; | |
478 | FOR_EACH_FRAME (tail, frame) | |
479 | if (FRAME_X_P (XFRAME (frame)) | |
480 | && XFRAME (frame) != f) | |
481 | { | |
482 | result = frame; | |
483 | break; | |
484 | } | |
485 | ||
486 | /* If we didn't find any X frames other than f, then we don't need | |
487 | any faces other than 0 and 1, so we're okay. Otherwise, make | |
488 | sure that all faces valid on the selected frame are also valid | |
489 | on this new frame. */ | |
490 | if (FRAMEP (result)) | |
491 | { | |
492 | int i; | |
7b00de84 JB |
493 | int n_faces = FRAME_N_PARAM_FACES (XFRAME (result)); |
494 | struct face **faces = FRAME_PARAM_FACES (XFRAME (result)); | |
1120eb5e JB |
495 | |
496 | for (i = 2; i < n_faces; i++) | |
497 | if (faces[i]) | |
498 | ensure_face_ready (f, i); | |
499 | } | |
500 | } | |
cb637678 JB |
501 | } |
502 | ||
660ed669 | 503 | |
cb637678 | 504 | /* Called from Fdelete_frame. */ |
cd0bb842 | 505 | |
cb637678 JB |
506 | void |
507 | free_frame_faces (f) | |
508 | struct frame *f; | |
509 | { | |
42120bc7 | 510 | Display *dpy = FRAME_X_DISPLAY (f); |
cb637678 JB |
511 | int i; |
512 | ||
660ed669 JB |
513 | BLOCK_INPUT; |
514 | ||
7b00de84 | 515 | for (i = 0; i < FRAME_N_PARAM_FACES (f); i++) |
cb637678 | 516 | { |
7b00de84 | 517 | struct face *face = FRAME_PARAM_FACES (f) [i]; |
660ed669 JB |
518 | if (face) |
519 | { | |
7b00de84 JB |
520 | unload_font (f, face->font); |
521 | unload_color (f, face->foreground); | |
522 | unload_color (f, face->background); | |
cd0bb842 | 523 | x_destroy_bitmap (f, face->stipple); |
660ed669 JB |
524 | xfree (face); |
525 | } | |
cb637678 | 526 | } |
7b00de84 JB |
527 | xfree (FRAME_PARAM_FACES (f)); |
528 | FRAME_PARAM_FACES (f) = 0; | |
529 | FRAME_N_PARAM_FACES (f) = 0; | |
530 | ||
531 | /* All faces in FRAME_COMPUTED_FACES use resources copied from | |
42120bc7 RS |
532 | FRAME_PARAM_FACES; we can free them without fuss. |
533 | But we do free the GCs and the face objects themselves. */ | |
534 | for (i = 0; i < FRAME_N_COMPUTED_FACES (f); i++) | |
535 | { | |
536 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
537 | if (face) | |
538 | { | |
539 | if (face->gc) | |
540 | XFreeGC (dpy, face->gc); | |
541 | xfree (face); | |
542 | } | |
543 | } | |
7b00de84 JB |
544 | xfree (FRAME_COMPUTED_FACES (f)); |
545 | FRAME_COMPUTED_FACES (f) = 0; | |
546 | FRAME_N_COMPUTED_FACES (f) = 0; | |
660ed669 JB |
547 | |
548 | UNBLOCK_INPUT; | |
cb637678 | 549 | } |
c115973b | 550 | \f |
cb637678 JB |
551 | /* Interning faces in a frame's face array. */ |
552 | ||
660ed669 | 553 | static int |
7b00de84 JB |
554 | new_computed_face (f, new_face) |
555 | struct frame *f; | |
556 | struct face *new_face; | |
557 | { | |
558 | int i = FRAME_N_COMPUTED_FACES (f); | |
559 | ||
560 | if (i >= FRAME_SIZE_COMPUTED_FACES (f)) | |
561 | { | |
562 | int new_size = i + 32; | |
563 | ||
564 | FRAME_COMPUTED_FACES (f) | |
fffc2367 RS |
565 | = (struct face **) (FRAME_SIZE_COMPUTED_FACES (f) == 0 |
566 | ? xmalloc (new_size * sizeof (struct face *)) | |
567 | : xrealloc (FRAME_COMPUTED_FACES (f), | |
568 | new_size * sizeof (struct face *))); | |
7b00de84 JB |
569 | FRAME_SIZE_COMPUTED_FACES (f) = new_size; |
570 | } | |
571 | ||
572 | i = FRAME_N_COMPUTED_FACES (f)++; | |
573 | FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); | |
574 | return i; | |
575 | } | |
576 | ||
577 | ||
578 | /* Find a match for NEW_FACE in a FRAME's computed face array, and add | |
579 | it if we don't find one. */ | |
580 | static int | |
581 | intern_computed_face (f, new_face) | |
582 | struct frame *f; | |
b6d40e46 | 583 | struct face *new_face; |
cb637678 | 584 | { |
7b00de84 | 585 | int len = FRAME_N_COMPUTED_FACES (f); |
cb637678 JB |
586 | int i; |
587 | ||
7b00de84 | 588 | /* Search for a computed face already on F equivalent to FACE. */ |
cb637678 JB |
589 | for (i = 0; i < len; i++) |
590 | { | |
7b00de84 JB |
591 | if (! FRAME_COMPUTED_FACES (f)[i]) |
592 | abort (); | |
593 | if (face_eql (new_face, FRAME_COMPUTED_FACES (f)[i])) | |
cb637678 JB |
594 | return i; |
595 | } | |
596 | ||
597 | /* We didn't find one; add a new one. */ | |
7b00de84 | 598 | return new_computed_face (f, new_face); |
cb637678 JB |
599 | } |
600 | ||
7b00de84 | 601 | /* Make parameter face id ID valid on frame F. */ |
cb637678 JB |
602 | |
603 | static void | |
604 | ensure_face_ready (f, id) | |
605 | struct frame *f; | |
606 | int id; | |
607 | { | |
7b00de84 | 608 | if (FRAME_N_PARAM_FACES (f) <= id) |
cb637678 JB |
609 | { |
610 | int n = id + 10; | |
611 | int i; | |
7b00de84 JB |
612 | if (!FRAME_N_PARAM_FACES (f)) |
613 | FRAME_PARAM_FACES (f) | |
cb637678 JB |
614 | = (struct face **) xmalloc (sizeof (struct face *) * n); |
615 | else | |
7b00de84 JB |
616 | FRAME_PARAM_FACES (f) |
617 | = (struct face **) xrealloc (FRAME_PARAM_FACES (f), | |
cb637678 JB |
618 | sizeof (struct face *) * n); |
619 | ||
7b00de84 JB |
620 | bzero (FRAME_PARAM_FACES (f) + FRAME_N_PARAM_FACES (f), |
621 | (n - FRAME_N_PARAM_FACES (f)) * sizeof (struct face *)); | |
622 | FRAME_N_PARAM_FACES (f) = n; | |
cb637678 JB |
623 | } |
624 | ||
7b00de84 JB |
625 | if (FRAME_PARAM_FACES (f) [id] == 0) |
626 | FRAME_PARAM_FACES (f) [id] = allocate_face (); | |
cb637678 JB |
627 | } |
628 | \f | |
867dd159 RS |
629 | /* Return non-zero if FONT1 and FONT2 have the same width. |
630 | We do not check the height, because we can now deal with | |
631 | different heights. | |
660ed669 | 632 | We assume that they're both character-cell fonts. */ |
867dd159 | 633 | |
660ed669 JB |
634 | int |
635 | same_size_fonts (font1, font2) | |
636 | XFontStruct *font1, *font2; | |
637 | { | |
638 | XCharStruct *bounds1 = &font1->min_bounds; | |
639 | XCharStruct *bounds2 = &font2->min_bounds; | |
640 | ||
46407861 | 641 | return (bounds1->width == bounds2->width); |
660ed669 JB |
642 | } |
643 | ||
729425b1 | 644 | /* Update the line_height of frame F according to the biggest font in |
6717f691 | 645 | any face. Return nonzero if if line_height changes. */ |
729425b1 | 646 | |
6717f691 | 647 | int |
729425b1 RS |
648 | frame_update_line_height (f) |
649 | FRAME_PTR f; | |
650 | { | |
651 | int i; | |
652 | int biggest = FONT_HEIGHT (f->display.x->font); | |
653 | ||
654 | for (i = 0; i < f->display.x->n_param_faces; i++) | |
867dd159 RS |
655 | if (f->display.x->param_faces[i] != 0 |
656 | && f->display.x->param_faces[i]->font != (XFontStruct *) FACE_DEFAULT) | |
729425b1 RS |
657 | { |
658 | int height = FONT_HEIGHT (f->display.x->param_faces[i]->font); | |
659 | if (height > biggest) | |
660 | biggest = height; | |
661 | } | |
662 | ||
663 | if (biggest == f->display.x->line_height) | |
6717f691 | 664 | return 0; |
729425b1 RS |
665 | |
666 | f->display.x->line_height = biggest; | |
6717f691 | 667 | return 1; |
729425b1 | 668 | } |
867dd159 | 669 | \f |
7b7739b1 JB |
670 | /* Modify face TO by copying from FROM all properties which have |
671 | nondefault settings. */ | |
867dd159 | 672 | |
7b7739b1 JB |
673 | static void |
674 | merge_faces (from, to) | |
675 | struct face *from, *to; | |
676 | { | |
867dd159 RS |
677 | /* Only merge the font if it's the same width as the base font. |
678 | Otherwise ignore it, since we can't handle it properly. */ | |
68a97335 | 679 | if (from->font != (XFontStruct *) FACE_DEFAULT |
68a97335 JB |
680 | && same_size_fonts (from->font, to->font)) |
681 | to->font = from->font; | |
7b7739b1 JB |
682 | if (from->foreground != FACE_DEFAULT) |
683 | to->foreground = from->foreground; | |
684 | if (from->background != FACE_DEFAULT) | |
685 | to->background = from->background; | |
f211082d | 686 | if (from->stipple != FACE_DEFAULT) |
cd0bb842 RS |
687 | { |
688 | to->stipple = from->stipple; | |
689 | to->pixmap_h = from->pixmap_h; | |
690 | to->pixmap_w = from->pixmap_w; | |
691 | } | |
7b7739b1 JB |
692 | if (from->underline) |
693 | to->underline = from->underline; | |
694 | } | |
695 | ||
660ed669 JB |
696 | /* Set up the basic set of facial parameters, based on the frame's |
697 | data; all faces are deltas applied to this. */ | |
867dd159 | 698 | |
660ed669 JB |
699 | static void |
700 | compute_base_face (f, face) | |
701 | FRAME_PTR f; | |
702 | struct face *face; | |
703 | { | |
660ed669 | 704 | face->gc = 0; |
cd0bb842 RS |
705 | face->foreground = FRAME_FOREGROUND_PIXEL (f); |
706 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
707 | face->font = FRAME_FONT (f); | |
582080c1 | 708 | face->stipple = 0; |
660ed669 JB |
709 | face->underline = 0; |
710 | } | |
711 | ||
867dd159 RS |
712 | /* Return the face ID to use to display a special glyph which selects |
713 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
714 | be CURRENT_FACE. F is the frame. */ | |
715 | ||
716 | int | |
717 | compute_glyph_face (f, face_code, current_face) | |
718 | struct frame *f; | |
719 | int face_code, current_face; | |
720 | { | |
721 | struct face face; | |
722 | ||
723 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
724 | ||
725 | if (face_code >= 0 && face_code < FRAME_N_PARAM_FACES (f) | |
726 | && FRAME_PARAM_FACES (f) [face_code] != 0) | |
727 | merge_faces (FRAME_PARAM_FACES (f) [face_code], &face); | |
660ed669 | 728 | |
867dd159 RS |
729 | return intern_computed_face (f, &face); |
730 | } | |
2e16580f RS |
731 | |
732 | /* Return the face ID to use to display a special glyph which selects | |
733 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
734 | be CURRENT_FACE. F is the frame. */ | |
735 | ||
736 | int | |
737 | compute_glyph_face_1 (f, face_name, current_face) | |
738 | struct frame *f; | |
739 | Lisp_Object face_name; | |
740 | int current_face; | |
741 | { | |
742 | struct face face; | |
743 | ||
744 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
745 | ||
746 | if (!NILP (face_name)) | |
747 | { | |
748 | int facecode = face_name_id_number (f, face_name); | |
749 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
750 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
751 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
752 | } | |
753 | ||
754 | return intern_computed_face (f, &face); | |
755 | } | |
867dd159 | 756 | \f |
cb637678 | 757 | /* Return the face ID associated with a buffer position POS. |
7b7739b1 JB |
758 | Store into *ENDPTR the position at which a different face is needed. |
759 | This does not take account of glyphs that specify their own face codes. | |
f6b98e0b | 760 | F is the frame in use for display, and W is a window displaying |
bc0db68d RS |
761 | the current buffer. |
762 | ||
b349f4fb RS |
763 | REGION_BEG, REGION_END delimit the region, so it can be highlighted. |
764 | ||
765 | LIMIT is a position not to scan beyond. That is to limit | |
6f134486 RS |
766 | the time this function can take. |
767 | ||
768 | If MOUSE is nonzero, use the character's mouse-face, not its face. */ | |
bc0db68d | 769 | |
cb637678 | 770 | int |
6f134486 | 771 | compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) |
7b7739b1 | 772 | struct frame *f; |
f211082d | 773 | struct window *w; |
7b7739b1 | 774 | int pos; |
bc0db68d | 775 | int region_beg, region_end; |
7b7739b1 | 776 | int *endptr; |
b349f4fb | 777 | int limit; |
6f134486 | 778 | int mouse; |
7b7739b1 JB |
779 | { |
780 | struct face face; | |
b6d40e46 | 781 | Lisp_Object prop, position; |
7b7739b1 JB |
782 | int i, j, noverlays; |
783 | int facecode; | |
7b7739b1 | 784 | Lisp_Object *overlay_vec; |
f211082d | 785 | Lisp_Object frame; |
f6b98e0b | 786 | int endpos; |
6f134486 | 787 | Lisp_Object propname; |
f6b98e0b JB |
788 | |
789 | /* W must display the current buffer. We could write this function | |
790 | to use the frame and buffer of W, but right now it doesn't. */ | |
791 | if (XBUFFER (w->buffer) != current_buffer) | |
792 | abort (); | |
f211082d | 793 | |
ac22a6c4 | 794 | XSETFRAME (frame, f); |
7b7739b1 | 795 | |
f6b98e0b | 796 | endpos = ZV; |
bc0db68d RS |
797 | if (pos < region_beg && region_beg < endpos) |
798 | endpos = region_beg; | |
f6b98e0b | 799 | |
e0979810 | 800 | XSETFASTINT (position, pos); |
6f134486 RS |
801 | |
802 | if (mouse) | |
803 | propname = Qmouse_face; | |
804 | else | |
805 | propname = Qface; | |
806 | ||
807 | prop = Fget_text_property (position, propname, w->buffer); | |
808 | ||
b6d40e46 | 809 | { |
b349f4fb | 810 | Lisp_Object limit1, end; |
7b7739b1 | 811 | |
e0979810 | 812 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6f134486 | 813 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); |
b6d40e46 JB |
814 | if (INTEGERP (end)) |
815 | endpos = XINT (end); | |
816 | } | |
817 | ||
818 | { | |
f6b98e0b | 819 | int next_overlay; |
9516fe94 RS |
820 | int len; |
821 | ||
822 | /* First try with room for 40 overlays. */ | |
823 | len = 40; | |
824 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
825 | ||
82277c2f | 826 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, &next_overlay, NULL); |
9516fe94 RS |
827 | |
828 | /* If there are more than 40, | |
829 | make enough space for all, and try again. */ | |
830 | if (noverlays > len) | |
831 | { | |
832 | len = noverlays; | |
833 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f RS |
834 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
835 | &next_overlay, NULL); | |
9516fe94 | 836 | } |
b6d40e46 | 837 | |
f6b98e0b JB |
838 | if (next_overlay < endpos) |
839 | endpos = next_overlay; | |
b6d40e46 JB |
840 | } |
841 | ||
842 | *endptr = endpos; | |
7b7739b1 JB |
843 | |
844 | /* Optimize the default case. */ | |
bc0db68d RS |
845 | if (noverlays == 0 && NILP (prop) |
846 | && !(pos >= region_beg && pos < region_end)) | |
cb637678 | 847 | return 0; |
7b7739b1 | 848 | |
660ed669 | 849 | compute_base_face (f, &face); |
7b7739b1 | 850 | |
4699e6d2 RS |
851 | if (CONSP (prop)) |
852 | { | |
853 | /* We have a list of faces, merge them in reverse order */ | |
854 | Lisp_Object length = Flength (prop); | |
855 | int len = XINT (length); | |
856 | Lisp_Object *faces; | |
857 | ||
858 | /* Put them into an array */ | |
859 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
860 | for (j = 0; j < len; j++) | |
861 | { | |
862 | faces[j] = Fcar (prop); | |
863 | prop = Fcdr (prop); | |
864 | } | |
865 | /* So that we can merge them in the reverse order */ | |
866 | for (j = len - 1; j >= 0; j--) | |
867 | { | |
868 | facecode = face_name_id_number (f, faces[j]); | |
869 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
870 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
871 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
872 | } | |
873 | } | |
874 | else if (!NILP (prop)) | |
7b7739b1 | 875 | { |
1d9fd7fe | 876 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
877 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
878 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
879 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
7b7739b1 JB |
880 | } |
881 | ||
4d6ebff8 | 882 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
7b7739b1 JB |
883 | |
884 | /* Now merge the overlay data in that order. */ | |
7b7739b1 JB |
885 | for (i = 0; i < noverlays; i++) |
886 | { | |
6f134486 | 887 | prop = Foverlay_get (overlay_vec[i], propname); |
4699e6d2 RS |
888 | if (CONSP (prop)) |
889 | { | |
890 | /* We have a list of faces, merge them in reverse order */ | |
891 | Lisp_Object length = Flength (prop); | |
892 | int len = XINT (length); | |
893 | Lisp_Object *faces; | |
894 | int i; | |
895 | ||
896 | /* Put them into an array */ | |
897 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
898 | for (j = 0; j < len; j++) | |
899 | { | |
900 | faces[j] = Fcar (prop); | |
901 | prop = Fcdr (prop); | |
902 | } | |
903 | /* So that we can merge them in the reverse order */ | |
904 | for (j = len - 1; j >= 0; j--) | |
905 | { | |
906 | facecode = face_name_id_number (f, faces[j]); | |
907 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
908 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
909 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
910 | } | |
911 | } | |
912 | else if (!NILP (prop)) | |
7b7739b1 JB |
913 | { |
914 | Lisp_Object oend; | |
915 | int oendpos; | |
916 | ||
1d9fd7fe | 917 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
918 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
919 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
6f134486 | 920 | merge_faces (FRAME_PARAM_FACES (f)[facecode], &face); |
7b7739b1 | 921 | |
4d6ebff8 | 922 | oend = OVERLAY_END (overlay_vec[i]); |
7b7739b1 | 923 | oendpos = OVERLAY_POSITION (oend); |
f6b98e0b | 924 | if (oendpos < endpos) |
7b7739b1 JB |
925 | endpos = oendpos; |
926 | } | |
927 | } | |
928 | ||
bc0db68d RS |
929 | if (pos >= region_beg && pos < region_end) |
930 | { | |
931 | if (region_end < endpos) | |
932 | endpos = region_end; | |
933 | if (region_face >= 0 && region_face < next_face_id) | |
6f134486 | 934 | merge_faces (FRAME_PARAM_FACES (f)[region_face], &face); |
bc0db68d RS |
935 | } |
936 | ||
7b7739b1 JB |
937 | *endptr = endpos; |
938 | ||
7b00de84 | 939 | return intern_computed_face (f, &face); |
f211082d | 940 | } |
867dd159 | 941 | \f |
660ed669 JB |
942 | /* Recompute the GC's for the default and modeline faces. |
943 | We call this after changing frame parameters on which those GC's | |
944 | depend. */ | |
fffc2367 | 945 | |
660ed669 JB |
946 | void |
947 | recompute_basic_faces (f) | |
948 | FRAME_PTR f; | |
949 | { | |
950 | /* If the frame's faces haven't been initialized yet, don't worry about | |
951 | this stuff. */ | |
7b00de84 | 952 | if (FRAME_N_PARAM_FACES (f) < 2) |
660ed669 JB |
953 | return; |
954 | ||
955 | BLOCK_INPUT; | |
956 | ||
957 | if (FRAME_DEFAULT_FACE (f)->gc) | |
42120bc7 | 958 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_DEFAULT_FACE (f)->gc); |
660ed669 | 959 | if (FRAME_MODE_LINE_FACE (f)->gc) |
42120bc7 | 960 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_MODE_LINE_FACE (f)->gc); |
7b00de84 JB |
961 | |
962 | compute_base_face (f, FRAME_DEFAULT_FACE (f)); | |
963 | compute_base_face (f, FRAME_MODE_LINE_FACE (f)); | |
964 | ||
965 | merge_faces (FRAME_DEFAULT_PARAM_FACE (f), FRAME_DEFAULT_FACE (f)); | |
966 | merge_faces (FRAME_MODE_LINE_PARAM_FACE (f), FRAME_MODE_LINE_FACE (f)); | |
967 | ||
42120bc7 RS |
968 | intern_face (f, FRAME_DEFAULT_FACE (f)); |
969 | intern_face (f, FRAME_MODE_LINE_FACE (f)); | |
660ed669 JB |
970 | |
971 | UNBLOCK_INPUT; | |
972 | } | |
973 | ||
974 | ||
c115973b | 975 | \f |
cb637678 | 976 | /* Lisp interface. */ |
c115973b JB |
977 | |
978 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, 1, 1, 0, | |
979 | "") | |
980 | (frame) | |
981 | Lisp_Object frame; | |
982 | { | |
983 | CHECK_FRAME (frame, 0); | |
984 | return XFRAME (frame)->face_alist; | |
985 | } | |
986 | ||
987 | DEFUN ("set-frame-face-alist", Fset_frame_face_alist, Sset_frame_face_alist, | |
988 | 2, 2, 0, "") | |
989 | (frame, value) | |
990 | Lisp_Object frame, value; | |
991 | { | |
992 | CHECK_FRAME (frame, 0); | |
993 | XFRAME (frame)->face_alist = value; | |
994 | return value; | |
995 | } | |
996 | ||
997 | ||
998 | DEFUN ("make-face-internal", Fmake_face_internal, Smake_face_internal, 1, 1, 0, | |
999 | "Create face number FACE-ID on all frames.") | |
1000 | (face_id) | |
1001 | Lisp_Object face_id; | |
1002 | { | |
1003 | Lisp_Object rest; | |
1004 | int id = XINT (face_id); | |
1005 | ||
f211082d JB |
1006 | CHECK_NUMBER (face_id, 0); |
1007 | if (id < 0 || id >= next_face_id) | |
1008 | error ("Face id out of range"); | |
c115973b JB |
1009 | |
1010 | for (rest = Vframe_list; !NILP (rest); rest = XCONS (rest)->cdr) | |
1011 | { | |
1012 | struct frame *f = XFRAME (XCONS (rest)->car); | |
cb637678 JB |
1013 | if (FRAME_X_P (f)) |
1014 | ensure_face_ready (f, id); | |
c115973b JB |
1015 | } |
1016 | return Qnil; | |
1017 | } | |
1018 | ||
1019 | ||
1020 | DEFUN ("set-face-attribute-internal", Fset_face_attribute_internal, | |
1021 | Sset_face_attribute_internal, 4, 4, 0, "") | |
1022 | (face_id, attr_name, attr_value, frame) | |
1023 | Lisp_Object face_id, attr_name, attr_value, frame; | |
1024 | { | |
1025 | struct face *face; | |
1026 | struct frame *f; | |
1027 | int magic_p; | |
1028 | int id; | |
53dfb388 | 1029 | int garbaged = 0; |
c115973b JB |
1030 | |
1031 | CHECK_FRAME (frame, 0); | |
f211082d | 1032 | CHECK_NUMBER (face_id, 0); |
c115973b JB |
1033 | CHECK_SYMBOL (attr_name, 0); |
1034 | ||
1035 | f = XFRAME (frame); | |
1036 | id = XINT (face_id); | |
f211082d JB |
1037 | if (id < 0 || id >= next_face_id) |
1038 | error ("Face id out of range"); | |
c115973b | 1039 | |
b6d40e46 | 1040 | if (! FRAME_X_P (f)) |
b839cea0 | 1041 | return Qnil; |
b6d40e46 | 1042 | |
c115973b | 1043 | ensure_face_ready (f, id); |
7b00de84 | 1044 | face = FRAME_PARAM_FACES (f) [XFASTINT (face_id)]; |
c115973b JB |
1045 | |
1046 | if (EQ (attr_name, intern ("font"))) | |
1047 | { | |
f211082d | 1048 | XFontStruct *font = load_font (f, attr_value); |
ebc64af3 RS |
1049 | if (face->font != f->display.x->font) |
1050 | unload_font (f, face->font); | |
c115973b | 1051 | face->font = font; |
6717f691 RS |
1052 | if (frame_update_line_height (f)) |
1053 | x_set_window_size (f, 0, f->width, f->height); | |
53dfb388 RS |
1054 | /* Must clear cache, since it might contain the font |
1055 | we just got rid of. */ | |
1056 | garbaged = 1; | |
c115973b JB |
1057 | } |
1058 | else if (EQ (attr_name, intern ("foreground"))) | |
1059 | { | |
f211082d | 1060 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
1061 | unload_color (f, face->foreground); |
1062 | face->foreground = new_color; | |
53dfb388 | 1063 | garbaged = 1; |
c115973b JB |
1064 | } |
1065 | else if (EQ (attr_name, intern ("background"))) | |
1066 | { | |
f211082d | 1067 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
1068 | unload_color (f, face->background); |
1069 | face->background = new_color; | |
53dfb388 | 1070 | garbaged = 1; |
c115973b | 1071 | } |
c115973b JB |
1072 | else if (EQ (attr_name, intern ("background-pixmap"))) |
1073 | { | |
cd0bb842 RS |
1074 | unsigned int w, h; |
1075 | unsigned long new_pixmap = load_pixmap (f, attr_value, &w, &h); | |
1076 | x_destroy_bitmap (f, face->stipple); | |
f211082d | 1077 | face->stipple = new_pixmap; |
c115973b JB |
1078 | face->pixmap_w = w; |
1079 | face->pixmap_h = h; | |
cd0bb842 | 1080 | garbaged = 1; |
c115973b | 1081 | } |
c115973b JB |
1082 | else if (EQ (attr_name, intern ("underline"))) |
1083 | { | |
1084 | int new = !NILP (attr_value); | |
1085 | face->underline = new; | |
1086 | } | |
1087 | else | |
1088 | error ("unknown face attribute"); | |
1089 | ||
7b00de84 JB |
1090 | if (id == 0 || id == 1) |
1091 | recompute_basic_faces (f); | |
c115973b | 1092 | |
53dfb388 RS |
1093 | /* We must redraw the frame whenever any face font or color changes, |
1094 | because it's possible that a merged (display) face | |
1095 | contains the font or color we just replaced. | |
1096 | And we must inhibit any Expose events until the redraw is done, | |
1097 | since they would try to use the invalid display faces. */ | |
1098 | if (garbaged) | |
584d0634 | 1099 | SET_FRAME_GARBAGED (f); |
584d0634 | 1100 | |
c115973b JB |
1101 | return Qnil; |
1102 | } | |
1103 | ||
1104 | DEFUN ("internal-next-face-id", Finternal_next_face_id, Sinternal_next_face_id, | |
1105 | 0, 0, 0, "") | |
1106 | () | |
1107 | { | |
1108 | return make_number (next_face_id++); | |
1109 | } | |
f211082d JB |
1110 | |
1111 | /* Return the face id for name NAME on frame FRAME. | |
1112 | (It should be the same for all frames, | |
1113 | but it's as easy to use the "right" frame to look it up | |
1114 | as to use any other one.) */ | |
1115 | ||
1d9fd7fe JB |
1116 | int |
1117 | face_name_id_number (f, name) | |
1118 | FRAME_PTR f; | |
1119 | Lisp_Object name; | |
f211082d JB |
1120 | { |
1121 | Lisp_Object tem; | |
1122 | ||
82411f65 | 1123 | tem = Fcdr (assq_no_quit (name, f->face_alist)); |
b6d40e46 JB |
1124 | if (NILP (tem)) |
1125 | return 0; | |
f211082d JB |
1126 | CHECK_VECTOR (tem, 0); |
1127 | tem = XVECTOR (tem)->contents[2]; | |
1128 | CHECK_NUMBER (tem, 0); | |
1129 | return XINT (tem); | |
1130 | } | |
c115973b | 1131 | \f |
cb637678 JB |
1132 | /* Emacs initialization. */ |
1133 | ||
c115973b | 1134 | void |
f211082d | 1135 | syms_of_xfaces () |
c115973b | 1136 | { |
f211082d JB |
1137 | Qface = intern ("face"); |
1138 | staticpro (&Qface); | |
6f134486 RS |
1139 | Qmouse_face = intern ("mouse-face"); |
1140 | staticpro (&Qmouse_face); | |
cd0bb842 RS |
1141 | Qpixmap_spec_p = intern ("pixmap-spec-p"); |
1142 | staticpro (&Qpixmap_spec_p); | |
f211082d | 1143 | |
bc0db68d RS |
1144 | DEFVAR_INT ("region-face", ®ion_face, |
1145 | "Face number to use to highlight the region\n\ | |
1146 | The region is highlighted with this face\n\ | |
1147 | when Transient Mark mode is enabled and the mark is active."); | |
1148 | ||
cd0bb842 | 1149 | defsubr (&Spixmap_spec_p); |
c115973b JB |
1150 | defsubr (&Sframe_face_alist); |
1151 | defsubr (&Sset_frame_face_alist); | |
1152 | defsubr (&Smake_face_internal); | |
1153 | defsubr (&Sset_face_attribute_internal); | |
1154 | defsubr (&Sinternal_next_face_id); | |
1155 | } | |
cb637678 JB |
1156 | |
1157 | #endif /* HAVE_X_WINDOWS */ | |
1158 |