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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
c115973b | 20 | |
357f32fc | 21 | /* This is derived from work by Lucid (some parts very loosely so). */ |
7b7739b1 | 22 | |
c115973b JB |
23 | #include <sys/types.h> |
24 | #include <sys/stat.h> | |
25 | ||
18160b98 | 26 | #include <config.h> |
c115973b JB |
27 | #include "lisp.h" |
28 | ||
a8517066 KH |
29 | #include "charset.h" |
30 | ||
b5c53576 RS |
31 | #include "frame.h" |
32 | ||
33 | /* The number of face-id's in use (same for all frames). */ | |
34 | static int next_face_id; | |
35 | ||
87485d6f | 36 | #ifdef HAVE_FACES |
cb637678 | 37 | |
87485d6f | 38 | #ifdef HAVE_X_WINDOWS |
c115973b | 39 | #include "xterm.h" |
a8517066 | 40 | #include "fontset.h" |
87485d6f MW |
41 | #endif |
42 | #ifdef MSDOS | |
43 | #include "dosfns.h" | |
44 | #endif | |
c115973b | 45 | #include "buffer.h" |
f211082d | 46 | #include "dispextern.h" |
357f32fc | 47 | #include "blockinput.h" |
b6d40e46 | 48 | #include "window.h" |
bde7c500 | 49 | #include "intervals.h" |
c115973b | 50 | |
87485d6f | 51 | #ifdef HAVE_X_WINDOWS |
657070ac JB |
52 | /* Compensate for bug in Xos.h on some systems, on which it requires |
53 | time.h. On some such systems, Xos.h tries to redefine struct | |
54 | timeval and struct timezone if USG is #defined while it is | |
55 | #included. */ | |
6233db35 | 56 | #ifdef XOS_NEEDS_TIME_H |
657070ac | 57 | |
e11d186d | 58 | #include <time.h> |
657070ac JB |
59 | #undef USG |
60 | #include <X11/Xos.h> | |
61 | #define USG | |
e11d186d | 62 | #define __TIMEVAL__ |
e11d186d | 63 | |
657070ac | 64 | #else |
7a4d2269 | 65 | |
c115973b JB |
66 | #include <X11/Xos.h> |
67 | ||
657070ac | 68 | #endif |
87485d6f | 69 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
70 | \f |
71 | /* An explanation of the face data structures. */ | |
72 | ||
73 | /* ========================= Face Data Structures ========================= | |
74 | ||
7b00de84 | 75 | Let FACE-NAME be a symbol naming a face. |
cb637678 | 76 | |
7b00de84 JB |
77 | Let FACE-VECTOR be (assq FACE-NAME (frame-face-alist FRAME)) |
78 | FACE-VECTOR is either nil, or a vector of the form | |
cb637678 JB |
79 | [face NAME ID FONT FOREGROUND BACKGROUND BACKGROUND-PIXMAP UNDERLINE-P] |
80 | where | |
81 | face is the symbol `face', | |
82 | NAME is the symbol with which this vector is associated (a backpointer), | |
83 | ID is the face ID, an integer used internally by the C code to identify | |
84 | the face, | |
85 | FONT, FOREGROUND, and BACKGROUND are strings naming the fonts and colors | |
a8517066 | 86 | to use with the face, FONT may name fontsets, |
cb637678 JB |
87 | BACKGROUND-PIXMAP is the name of an x bitmap filename, which we don't |
88 | use right now, and | |
89 | UNDERLINE-P is non-nil if the face should be underlined. | |
7b00de84 JB |
90 | If any of these elements are nil, that parameter is considered |
91 | unspecified; parameters from faces specified by lower-priority | |
92 | overlays or text properties, or the parameters of the frame itself, | |
93 | can show through. (lisp/faces.el maintains these lists.) | |
94 | ||
95 | (assq FACE-NAME global-face-data) returns a vector describing the | |
96 | global parameters for that face. | |
97 | ||
7556890b | 98 | Let PARAM-FACE be FRAME->output_data.x->param_faces[Faref (FACE-VECTOR, 2)]. |
7b00de84 JB |
99 | PARAM_FACE is a struct face whose members are the Xlib analogues of |
100 | the parameters in FACE-VECTOR. If an element of FACE-VECTOR is | |
101 | nil, then the corresponding member of PARAM_FACE is FACE_DEFAULT. | |
102 | These faces are called "parameter faces", because they're the ones | |
103 | lisp manipulates to control what gets displayed. Elements 0 and 1 | |
7556890b | 104 | of FRAME->output_data.x->param_faces are special - they describe the |
7b00de84 | 105 | default and mode line faces. None of the faces in param_faces have |
8e6208c5 | 106 | GC's. (See src/dispextern.h for the definition of struct face. |
7b00de84 JB |
107 | lisp/faces.el maintains the isomorphism between face_alist and |
108 | param_faces.) | |
109 | ||
110 | The functions compute_char_face and compute_glyph_face find and | |
111 | combine the parameter faces associated with overlays and text | |
112 | properties. The resulting faces are called "computed faces"; none | |
113 | of their members are FACE_DEFAULT; they are completely specified. | |
114 | They then call intern_compute_face to search | |
7556890b | 115 | FRAME->output_data.x->computed_faces for a matching face, add one if |
7b00de84 | 116 | none is found, and return the index into |
7556890b | 117 | FRAME->output_data.x->computed_faces. FRAME's glyph matrices use these |
7b00de84 JB |
118 | indices to record the faces of the matrix characters, and the X |
119 | display hooks consult compute_faces to decide how to display these | |
120 | characters. Elements 0 and 1 of computed_faces always describe the | |
121 | default and mode-line faces. | |
122 | ||
cd0bb842 RS |
123 | Each computed face belongs to a particular frame. |
124 | ||
42120bc7 RS |
125 | Computed faces have graphics contexts some of the time. |
126 | intern_face builds a GC for a specified computed face | |
127 | if it doesn't have one already. | |
128 | clear_face_cache clears out the GCs of all computed faces. | |
129 | This is done from time to time so that we don't hold on to | |
130 | lots of GCs that are no longer needed. | |
7b00de84 | 131 | |
195f798e RS |
132 | If a computed face has 0 as its font, |
133 | it is unused, and can be reused by new_computed_face. | |
134 | ||
7b00de84 JB |
135 | Constraints: |
136 | ||
137 | Symbols naming faces must have associations on all frames; for any | |
138 | FRAME, for all FACE-NAME, if (assq FACE-NAME (frame-face-alist | |
139 | FRAME)) is non-nil, it must be non-nil for all frames. | |
140 | ||
141 | Analogously, indices into param_faces must be valid on all frames; | |
142 | if param_faces[i] is a non-zero face pointer on one frame, then it | |
143 | must be filled in on all frames. Code assumes that face ID's can | |
144 | be used on any frame. | |
cb637678 JB |
145 | |
146 | Some subtleties: | |
7b7739b1 | 147 | |
7b00de84 JB |
148 | Why do we keep param_faces and computed_faces separate? |
149 | computed_faces contains an element for every combination of facial | |
150 | parameters we have ever displayed. indices into param_faces have | |
151 | to be valid on all frames. If they were the same array, then that | |
152 | array would grow very large on all frames, because any facial | |
153 | combination displayed on any frame would need to be a valid entry | |
42120bc7 | 154 | on all frames. */ |
cb637678 JB |
155 | \f |
156 | /* Definitions and declarations. */ | |
157 | ||
bc0db68d | 158 | /* The number of the face to use to indicate the region. */ |
f8758da5 | 159 | static int region_face; |
bc0db68d | 160 | |
9516fe94 RS |
161 | /* This is what appears in a slot in a face to signify that the face |
162 | does not specify that display aspect. */ | |
7b7739b1 JB |
163 | #define FACE_DEFAULT (~0) |
164 | ||
6f134486 | 165 | Lisp_Object Qface, Qmouse_face; |
cd0bb842 | 166 | Lisp_Object Qpixmap_spec_p; |
f211082d | 167 | |
415445e2 | 168 | int face_name_id_number ( /* FRAME_PTR, Lisp_Object name */ ); |
cb637678 | 169 | |
415445e2 | 170 | struct face *intern_face ( /* FRAME_PTR, struct face * */ ); |
7b00de84 JB |
171 | static int new_computed_face ( /* FRAME_PTR, struct face * */ ); |
172 | static int intern_computed_face ( /* FRAME_PTR, struct face * */ ); | |
415445e2 | 173 | static void ensure_face_ready ( /* FRAME_PTR, int id */ ); |
254a1b66 | 174 | void recompute_basic_faces ( /* FRAME_PTR f */ ); |
c115973b | 175 | \f |
cb637678 JB |
176 | /* Allocating, copying, and comparing struct faces. */ |
177 | ||
178 | /* Allocate a new face */ | |
179 | static struct face * | |
180 | allocate_face () | |
181 | { | |
182 | struct face *result = (struct face *) xmalloc (sizeof (struct face)); | |
183 | bzero (result, sizeof (struct face)); | |
184 | result->font = (XFontStruct *) FACE_DEFAULT; | |
a8517066 | 185 | result->fontset = -1; |
cb637678 JB |
186 | result->foreground = FACE_DEFAULT; |
187 | result->background = FACE_DEFAULT; | |
188 | result->stipple = FACE_DEFAULT; | |
189 | return result; | |
190 | } | |
c115973b | 191 | |
cb637678 | 192 | /* Make a new face that's a copy of an existing one. */ |
c115973b JB |
193 | static struct face * |
194 | copy_face (face) | |
195 | struct face *face; | |
196 | { | |
197 | struct face *result = allocate_face (); | |
198 | ||
199 | result->font = face->font; | |
a8517066 | 200 | result->fontset = face->fontset; |
c115973b JB |
201 | result->foreground = face->foreground; |
202 | result->background = face->background; | |
f211082d | 203 | result->stipple = face->stipple; |
c115973b | 204 | result->underline = face->underline; |
cd0bb842 RS |
205 | result->pixmap_h = face->pixmap_h; |
206 | result->pixmap_w = face->pixmap_w; | |
c115973b JB |
207 | |
208 | return result; | |
209 | } | |
210 | ||
211 | static int | |
212 | face_eql (face1, face2) | |
213 | struct face *face1, *face2; | |
214 | { | |
cb637678 | 215 | return ( face1->font == face2->font |
a8517066 | 216 | && face1->fontset == face2->fontset |
c115973b JB |
217 | && face1->foreground == face2->foreground |
218 | && face1->background == face2->background | |
cb637678 JB |
219 | && face1->stipple == face2->stipple |
220 | && face1->underline == face2->underline); | |
c115973b | 221 | } |
cb637678 | 222 | \f |
42120bc7 | 223 | /* Managing graphics contexts of faces. */ |
c115973b | 224 | |
87485d6f | 225 | #ifdef HAVE_X_WINDOWS |
42120bc7 | 226 | /* Given a computed face, construct its graphics context if necessary. */ |
cb637678 JB |
227 | |
228 | struct face * | |
229 | intern_face (f, face) | |
230 | struct frame *f; | |
231 | struct face *face; | |
c115973b JB |
232 | { |
233 | GC gc; | |
234 | XGCValues xgcv; | |
235 | unsigned long mask; | |
236 | ||
42120bc7 RS |
237 | if (face->gc) |
238 | return face; | |
239 | ||
660ed669 JB |
240 | BLOCK_INPUT; |
241 | ||
f211082d JB |
242 | if (face->foreground != FACE_DEFAULT) |
243 | xgcv.foreground = face->foreground; | |
244 | else | |
7556890b | 245 | xgcv.foreground = f->output_data.x->foreground_pixel; |
660ed669 | 246 | |
f211082d JB |
247 | if (face->background != FACE_DEFAULT) |
248 | xgcv.background = face->background; | |
249 | else | |
7556890b | 250 | xgcv.background = f->output_data.x->background_pixel; |
660ed669 | 251 | |
3f000d8c | 252 | if (face->font && face->font != (XFontStruct *) FACE_DEFAULT) |
f211082d JB |
253 | xgcv.font = face->font->fid; |
254 | else | |
7556890b | 255 | xgcv.font = f->output_data.x->font->fid; |
660ed669 | 256 | |
c115973b | 257 | xgcv.graphics_exposures = 0; |
660ed669 | 258 | |
c115973b | 259 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; |
cd0bb842 | 260 | if (face->stipple && face->stipple != FACE_DEFAULT) |
95887807 RS |
261 | { |
262 | xgcv.fill_style = FillStippled; | |
263 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); | |
264 | mask |= GCFillStyle | GCStipple; | |
265 | } | |
cd0bb842 | 266 | |
42120bc7 | 267 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), |
c115973b | 268 | mask, &xgcv); |
660ed669 | 269 | |
f211082d | 270 | face->gc = gc; |
a8517066 KH |
271 | /* We used the following GC for all non-ASCII characters by changing |
272 | only GCfont each time. */ | |
273 | face->non_ascii_gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), | |
274 | mask, &xgcv); | |
660ed669 JB |
275 | |
276 | UNBLOCK_INPUT; | |
42120bc7 RS |
277 | |
278 | return face; | |
c115973b | 279 | } |
cb637678 | 280 | |
42120bc7 RS |
281 | /* Clear out all graphics contexts for all computed faces |
282 | except for the default and mode line faces. | |
283 | This should be done from time to time just to avoid | |
284 | keeping too many graphics contexts that are no longer needed. */ | |
285 | ||
286 | void | |
287 | clear_face_cache () | |
288 | { | |
289 | Lisp_Object tail, frame; | |
290 | ||
291 | BLOCK_INPUT; | |
292 | FOR_EACH_FRAME (tail, frame) | |
293 | { | |
294 | FRAME_PTR f = XFRAME (frame); | |
295 | if (FRAME_X_P (f)) | |
296 | { | |
297 | int i; | |
298 | Display *dpy = FRAME_X_DISPLAY (f); | |
299 | ||
300 | for (i = 2; i < FRAME_N_COMPUTED_FACES (f); i++) | |
301 | { | |
302 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
303 | if (face->gc) | |
a8517066 KH |
304 | { |
305 | XFreeGC (dpy, face->gc); | |
306 | XFreeGC (dpy, face->non_ascii_gc); | |
307 | } | |
42120bc7 RS |
308 | face->gc = 0; |
309 | } | |
310 | } | |
311 | } | |
312 | ||
313 | UNBLOCK_INPUT; | |
314 | } | |
315 | \f | |
cd0bb842 RS |
316 | /* Allocating, freeing, and duplicating fonts, colors, and pixmaps. |
317 | ||
318 | These functions operate on param faces only. | |
319 | Computed faces get their fonts, colors and pixmaps | |
320 | by merging param faces. */ | |
cb637678 JB |
321 | |
322 | static XFontStruct * | |
323 | load_font (f, name) | |
324 | struct frame *f; | |
325 | Lisp_Object name; | |
326 | { | |
327 | XFontStruct *font; | |
328 | ||
329 | if (NILP (name)) | |
330 | return (XFontStruct *) FACE_DEFAULT; | |
331 | ||
332 | CHECK_STRING (name, 0); | |
333 | BLOCK_INPUT; | |
42120bc7 | 334 | font = XLoadQueryFont (FRAME_X_DISPLAY (f), (char *) XSTRING (name)->data); |
cb637678 JB |
335 | UNBLOCK_INPUT; |
336 | ||
337 | if (! font) | |
338 | Fsignal (Qerror, Fcons (build_string ("undefined font"), | |
339 | Fcons (name, Qnil))); | |
340 | return font; | |
341 | } | |
342 | ||
343 | static void | |
344 | unload_font (f, font) | |
345 | struct frame *f; | |
346 | XFontStruct *font; | |
347 | { | |
195f798e RS |
348 | int len = FRAME_N_COMPUTED_FACES (f); |
349 | int i; | |
350 | ||
cb637678 JB |
351 | if (!font || font == ((XFontStruct *) FACE_DEFAULT)) |
352 | return; | |
660ed669 JB |
353 | |
354 | BLOCK_INPUT; | |
195f798e RS |
355 | /* Invalidate any computed faces which use this font, |
356 | and free their GC's if they have any. */ | |
f3400cf9 | 357 | for (i = 2; i < len; i++) |
195f798e RS |
358 | { |
359 | struct face *face = FRAME_COMPUTED_FACES (f)[i]; | |
360 | if (face->font == font) | |
361 | { | |
362 | Display *dpy = FRAME_X_DISPLAY (f); | |
363 | if (face->gc) | |
364 | XFreeGC (dpy, face->gc); | |
365 | face->gc = 0; | |
f3400cf9 | 366 | /* This marks the computed face as available to reuse. */ |
195f798e RS |
367 | face->font = 0; |
368 | } | |
369 | } | |
370 | ||
42120bc7 | 371 | XFreeFont (FRAME_X_DISPLAY (f), font); |
660ed669 | 372 | UNBLOCK_INPUT; |
cb637678 JB |
373 | } |
374 | ||
375 | static unsigned long | |
376 | load_color (f, name) | |
377 | struct frame *f; | |
378 | Lisp_Object name; | |
379 | { | |
cb637678 JB |
380 | XColor color; |
381 | int result; | |
382 | ||
383 | if (NILP (name)) | |
384 | return FACE_DEFAULT; | |
385 | ||
cb637678 | 386 | CHECK_STRING (name, 0); |
34dda5f4 KH |
387 | /* if the colormap is full, defined_color will return a best match |
388 | to the values in an an existing cell. */ | |
a992f9d9 | 389 | result = defined_color(f, (char *) XSTRING (name)->data, &color, 1); |
cb637678 JB |
390 | if (! result) |
391 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
392 | Fcons (name, Qnil))); | |
cb637678 JB |
393 | return (unsigned long) color.pixel; |
394 | } | |
395 | ||
396 | static void | |
397 | unload_color (f, pixel) | |
398 | struct frame *f; | |
7a4d2269 | 399 | unsigned long pixel; |
cb637678 JB |
400 | { |
401 | Colormap cmap; | |
42120bc7 | 402 | Display *dpy = FRAME_X_DISPLAY (f); |
828e66d1 RS |
403 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
404 | ||
32dc0866 | 405 | if (pixel == FACE_DEFAULT |
0704eec9 RS |
406 | || pixel == BLACK_PIX_DEFAULT (f) |
407 | || pixel == WHITE_PIX_DEFAULT (f)) | |
cb637678 | 408 | return; |
42120bc7 | 409 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)); |
828e66d1 RS |
410 | |
411 | /* If display has an immutable color map, freeing colors is not | |
412 | necessary and some servers don't allow it. So don't do it. */ | |
413 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
414 | { | |
195f798e RS |
415 | int len = FRAME_N_COMPUTED_FACES (f); |
416 | int i; | |
417 | ||
828e66d1 | 418 | BLOCK_INPUT; |
195f798e RS |
419 | /* Invalidate any computed faces which use this color, |
420 | and free their GC's if they have any. */ | |
f3400cf9 | 421 | for (i = 2; i < len; i++) |
195f798e RS |
422 | { |
423 | struct face *face = FRAME_COMPUTED_FACES (f)[i]; | |
424 | if (face->foreground == pixel | |
425 | || face->background == pixel) | |
426 | { | |
427 | Display *dpy = FRAME_X_DISPLAY (f); | |
428 | if (face->gc) | |
429 | XFreeGC (dpy, face->gc); | |
430 | face->gc = 0; | |
f3400cf9 | 431 | /* This marks the computed face as available to reuse. */ |
195f798e RS |
432 | face->font = 0; |
433 | } | |
434 | } | |
435 | ||
828e66d1 RS |
436 | XFreeColors (dpy, cmap, &pixel, 1, (unsigned long)0); |
437 | UNBLOCK_INPUT; | |
438 | } | |
cd0bb842 RS |
439 | } |
440 | ||
441 | DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, | |
ed791d5b EN |
442 | "Return t if OBJECT is a valid pixmap specification.") |
443 | (object) | |
444 | Lisp_Object object; | |
cd0bb842 RS |
445 | { |
446 | Lisp_Object height, width; | |
447 | ||
ed791d5b EN |
448 | return ((STRINGP (object) |
449 | || (CONSP (object) | |
450 | && CONSP (XCONS (object)->cdr) | |
451 | && CONSP (XCONS (XCONS (object)->cdr)->cdr) | |
452 | && NILP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->cdr) | |
453 | && (width = XCONS (object)->car, INTEGERP (width)) | |
454 | && (height = XCONS (XCONS (object)->cdr)->car, INTEGERP (height)) | |
455 | && STRINGP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car) | |
cd0bb842 RS |
456 | && XINT (width) > 0 |
457 | && XINT (height) > 0 | |
458 | /* The string must have enough bits for width * height. */ | |
ed791d5b | 459 | && ((XSTRING (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car)->size |
68be917d | 460 | * (BITS_PER_INT / sizeof (int))) |
e1befa75 | 461 | >= XFASTINT (width) * XFASTINT (height)))) |
cd0bb842 RS |
462 | ? Qt : Qnil); |
463 | } | |
464 | ||
465 | /* Load a bitmap according to NAME (which is either a file name | |
466 | or a pixmap spec). Return the bitmap_id (see xfns.c) | |
467 | or get an error if NAME is invalid. | |
468 | ||
469 | Store the bitmap width in *W_PTR and height in *H_PTR. */ | |
470 | ||
471 | static long | |
472 | load_pixmap (f, name, w_ptr, h_ptr) | |
7812a96f | 473 | FRAME_PTR f; |
cd0bb842 RS |
474 | Lisp_Object name; |
475 | unsigned int *w_ptr, *h_ptr; | |
476 | { | |
477 | int bitmap_id; | |
478 | Lisp_Object tem; | |
479 | ||
480 | if (NILP (name)) | |
481 | return FACE_DEFAULT; | |
482 | ||
483 | tem = Fpixmap_spec_p (name); | |
484 | if (NILP (tem)) | |
485 | wrong_type_argument (Qpixmap_spec_p, name); | |
486 | ||
487 | BLOCK_INPUT; | |
488 | ||
489 | if (CONSP (name)) | |
490 | { | |
491 | /* Decode a bitmap spec into a bitmap. */ | |
492 | ||
493 | int h, w; | |
494 | Lisp_Object bits; | |
495 | ||
496 | w = XINT (Fcar (name)); | |
497 | h = XINT (Fcar (Fcdr (name))); | |
498 | bits = Fcar (Fcdr (Fcdr (name))); | |
499 | ||
500 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
501 | w, h); | |
502 | } | |
503 | else | |
504 | { | |
505 | /* It must be a string -- a file name. */ | |
506 | bitmap_id = x_create_bitmap_from_file (f, name); | |
507 | } | |
508 | UNBLOCK_INPUT; | |
509 | ||
7812a96f RS |
510 | if (bitmap_id < 0) |
511 | Fsignal (Qerror, Fcons (build_string ("invalid or undefined bitmap"), | |
cd0bb842 RS |
512 | Fcons (name, Qnil))); |
513 | ||
514 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
515 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
516 | ||
517 | return bitmap_id; | |
cb637678 | 518 | } |
87485d6f MW |
519 | |
520 | #else /* !HAVE_X_WINDOWS */ | |
521 | ||
522 | /* Stubs for MSDOS when not under X. */ | |
523 | ||
524 | struct face * | |
525 | intern_face (f, face) | |
526 | struct frame *f; | |
527 | struct face *face; | |
528 | { | |
529 | return face; | |
530 | } | |
531 | ||
532 | void | |
533 | clear_face_cache () | |
534 | { | |
535 | /* No action. */ | |
536 | } | |
537 | ||
87485d6f MW |
538 | #ifdef MSDOS |
539 | unsigned long | |
540 | load_color (f, name) | |
541 | FRAME_PTR f; | |
542 | Lisp_Object name; | |
543 | { | |
544 | Lisp_Object result; | |
545 | ||
546 | if (NILP (name)) | |
547 | return FACE_DEFAULT; | |
548 | ||
549 | CHECK_STRING (name, 0); | |
550 | result = call1 (Qmsdos_color_translate, name); | |
551 | if (INTEGERP (result)) | |
552 | return XINT (result); | |
553 | else | |
554 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
555 | Fcons (name, Qnil))); | |
556 | } | |
557 | #endif | |
558 | #endif /* !HAVE_X_WINDOWS */ | |
559 | ||
cb637678 | 560 | \f |
7b00de84 | 561 | /* Managing parameter face arrays for frames. */ |
cb637678 | 562 | |
cb637678 JB |
563 | void |
564 | init_frame_faces (f) | |
660ed669 | 565 | FRAME_PTR f; |
cb637678 JB |
566 | { |
567 | ensure_face_ready (f, 0); | |
cb637678 | 568 | ensure_face_ready (f, 1); |
660ed669 | 569 | |
fffc2367 RS |
570 | FRAME_N_COMPUTED_FACES (f) = 0; |
571 | FRAME_SIZE_COMPUTED_FACES (f) = 0; | |
572 | ||
7b00de84 JB |
573 | new_computed_face (f, FRAME_PARAM_FACES (f)[0]); |
574 | new_computed_face (f, FRAME_PARAM_FACES (f)[1]); | |
660ed669 | 575 | recompute_basic_faces (f); |
7b37f67b | 576 | |
1120eb5e JB |
577 | /* Find another X frame. */ |
578 | { | |
579 | Lisp_Object tail, frame, result; | |
580 | ||
581 | result = Qnil; | |
582 | FOR_EACH_FRAME (tail, frame) | |
50e3dcf5 | 583 | if ((FRAME_MSDOS_P (XFRAME (frame)) || FRAME_X_P (XFRAME (frame))) |
1120eb5e JB |
584 | && XFRAME (frame) != f) |
585 | { | |
586 | result = frame; | |
587 | break; | |
588 | } | |
589 | ||
590 | /* If we didn't find any X frames other than f, then we don't need | |
591 | any faces other than 0 and 1, so we're okay. Otherwise, make | |
592 | sure that all faces valid on the selected frame are also valid | |
593 | on this new frame. */ | |
594 | if (FRAMEP (result)) | |
595 | { | |
596 | int i; | |
7b00de84 JB |
597 | int n_faces = FRAME_N_PARAM_FACES (XFRAME (result)); |
598 | struct face **faces = FRAME_PARAM_FACES (XFRAME (result)); | |
1120eb5e JB |
599 | |
600 | for (i = 2; i < n_faces; i++) | |
601 | if (faces[i]) | |
602 | ensure_face_ready (f, i); | |
603 | } | |
604 | } | |
cb637678 JB |
605 | } |
606 | ||
660ed669 | 607 | |
cb637678 | 608 | /* Called from Fdelete_frame. */ |
cd0bb842 | 609 | |
cb637678 JB |
610 | void |
611 | free_frame_faces (f) | |
612 | struct frame *f; | |
613 | { | |
42120bc7 | 614 | Display *dpy = FRAME_X_DISPLAY (f); |
cb637678 JB |
615 | int i; |
616 | ||
660ed669 JB |
617 | BLOCK_INPUT; |
618 | ||
7b00de84 | 619 | for (i = 0; i < FRAME_N_PARAM_FACES (f); i++) |
cb637678 | 620 | { |
7b00de84 | 621 | struct face *face = FRAME_PARAM_FACES (f) [i]; |
660ed669 JB |
622 | if (face) |
623 | { | |
a8517066 KH |
624 | if (face->fontset < 0) |
625 | unload_font (f, face->font); | |
7b00de84 JB |
626 | unload_color (f, face->foreground); |
627 | unload_color (f, face->background); | |
cd0bb842 | 628 | x_destroy_bitmap (f, face->stipple); |
660ed669 JB |
629 | xfree (face); |
630 | } | |
cb637678 | 631 | } |
7b00de84 JB |
632 | xfree (FRAME_PARAM_FACES (f)); |
633 | FRAME_PARAM_FACES (f) = 0; | |
634 | FRAME_N_PARAM_FACES (f) = 0; | |
635 | ||
636 | /* All faces in FRAME_COMPUTED_FACES use resources copied from | |
42120bc7 RS |
637 | FRAME_PARAM_FACES; we can free them without fuss. |
638 | But we do free the GCs and the face objects themselves. */ | |
639 | for (i = 0; i < FRAME_N_COMPUTED_FACES (f); i++) | |
640 | { | |
641 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
642 | if (face) | |
643 | { | |
644 | if (face->gc) | |
a8517066 KH |
645 | { |
646 | XFreeGC (dpy, face->gc); | |
647 | XFreeGC (dpy, face->non_ascii_gc); | |
648 | } | |
42120bc7 RS |
649 | xfree (face); |
650 | } | |
651 | } | |
7b00de84 JB |
652 | xfree (FRAME_COMPUTED_FACES (f)); |
653 | FRAME_COMPUTED_FACES (f) = 0; | |
654 | FRAME_N_COMPUTED_FACES (f) = 0; | |
660ed669 JB |
655 | |
656 | UNBLOCK_INPUT; | |
cb637678 | 657 | } |
c115973b | 658 | \f |
cb637678 JB |
659 | /* Interning faces in a frame's face array. */ |
660 | ||
660ed669 | 661 | static int |
7b00de84 JB |
662 | new_computed_face (f, new_face) |
663 | struct frame *f; | |
664 | struct face *new_face; | |
665 | { | |
195f798e RS |
666 | int len = FRAME_N_COMPUTED_FACES (f); |
667 | int i; | |
668 | ||
669 | /* Search for an unused computed face in the middle of the table. */ | |
670 | for (i = 0; i < len; i++) | |
671 | { | |
672 | struct face *face = FRAME_COMPUTED_FACES (f)[i]; | |
673 | if (face->font == 0) | |
674 | { | |
675 | FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); | |
676 | return i; | |
677 | } | |
678 | } | |
7b00de84 JB |
679 | |
680 | if (i >= FRAME_SIZE_COMPUTED_FACES (f)) | |
681 | { | |
682 | int new_size = i + 32; | |
683 | ||
684 | FRAME_COMPUTED_FACES (f) | |
fffc2367 RS |
685 | = (struct face **) (FRAME_SIZE_COMPUTED_FACES (f) == 0 |
686 | ? xmalloc (new_size * sizeof (struct face *)) | |
687 | : xrealloc (FRAME_COMPUTED_FACES (f), | |
688 | new_size * sizeof (struct face *))); | |
7b00de84 JB |
689 | FRAME_SIZE_COMPUTED_FACES (f) = new_size; |
690 | } | |
691 | ||
692 | i = FRAME_N_COMPUTED_FACES (f)++; | |
693 | FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); | |
694 | return i; | |
695 | } | |
696 | ||
697 | ||
698 | /* Find a match for NEW_FACE in a FRAME's computed face array, and add | |
699 | it if we don't find one. */ | |
700 | static int | |
701 | intern_computed_face (f, new_face) | |
702 | struct frame *f; | |
b6d40e46 | 703 | struct face *new_face; |
cb637678 | 704 | { |
7b00de84 | 705 | int len = FRAME_N_COMPUTED_FACES (f); |
cb637678 JB |
706 | int i; |
707 | ||
7b00de84 | 708 | /* Search for a computed face already on F equivalent to FACE. */ |
cb637678 JB |
709 | for (i = 0; i < len; i++) |
710 | { | |
7b00de84 JB |
711 | if (! FRAME_COMPUTED_FACES (f)[i]) |
712 | abort (); | |
713 | if (face_eql (new_face, FRAME_COMPUTED_FACES (f)[i])) | |
cb637678 JB |
714 | return i; |
715 | } | |
716 | ||
717 | /* We didn't find one; add a new one. */ | |
7b00de84 | 718 | return new_computed_face (f, new_face); |
cb637678 JB |
719 | } |
720 | ||
7b00de84 | 721 | /* Make parameter face id ID valid on frame F. */ |
cb637678 JB |
722 | |
723 | static void | |
724 | ensure_face_ready (f, id) | |
725 | struct frame *f; | |
726 | int id; | |
727 | { | |
7b00de84 | 728 | if (FRAME_N_PARAM_FACES (f) <= id) |
cb637678 JB |
729 | { |
730 | int n = id + 10; | |
731 | int i; | |
7b00de84 JB |
732 | if (!FRAME_N_PARAM_FACES (f)) |
733 | FRAME_PARAM_FACES (f) | |
cb637678 JB |
734 | = (struct face **) xmalloc (sizeof (struct face *) * n); |
735 | else | |
7b00de84 JB |
736 | FRAME_PARAM_FACES (f) |
737 | = (struct face **) xrealloc (FRAME_PARAM_FACES (f), | |
cb637678 JB |
738 | sizeof (struct face *) * n); |
739 | ||
7b00de84 JB |
740 | bzero (FRAME_PARAM_FACES (f) + FRAME_N_PARAM_FACES (f), |
741 | (n - FRAME_N_PARAM_FACES (f)) * sizeof (struct face *)); | |
742 | FRAME_N_PARAM_FACES (f) = n; | |
cb637678 JB |
743 | } |
744 | ||
7b00de84 JB |
745 | if (FRAME_PARAM_FACES (f) [id] == 0) |
746 | FRAME_PARAM_FACES (f) [id] = allocate_face (); | |
cb637678 JB |
747 | } |
748 | \f | |
87485d6f | 749 | #ifdef HAVE_X_WINDOWS |
867dd159 RS |
750 | /* Return non-zero if FONT1 and FONT2 have the same width. |
751 | We do not check the height, because we can now deal with | |
752 | different heights. | |
660ed669 | 753 | We assume that they're both character-cell fonts. */ |
867dd159 | 754 | |
660ed669 JB |
755 | int |
756 | same_size_fonts (font1, font2) | |
757 | XFontStruct *font1, *font2; | |
758 | { | |
759 | XCharStruct *bounds1 = &font1->min_bounds; | |
760 | XCharStruct *bounds2 = &font2->min_bounds; | |
761 | ||
46407861 | 762 | return (bounds1->width == bounds2->width); |
660ed669 JB |
763 | } |
764 | ||
729425b1 | 765 | /* Update the line_height of frame F according to the biggest font in |
6717f691 | 766 | any face. Return nonzero if if line_height changes. */ |
729425b1 | 767 | |
6717f691 | 768 | int |
729425b1 RS |
769 | frame_update_line_height (f) |
770 | FRAME_PTR f; | |
771 | { | |
772 | int i; | |
a8517066 KH |
773 | int fontset = f->output_data.x->fontset; |
774 | int biggest = (fontset > 0 | |
775 | ? FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height | |
776 | : FONT_HEIGHT (f->output_data.x->font)); | |
729425b1 | 777 | |
7556890b RS |
778 | for (i = 0; i < f->output_data.x->n_param_faces; i++) |
779 | if (f->output_data.x->param_faces[i] != 0 | |
780 | && f->output_data.x->param_faces[i]->font != (XFontStruct *) FACE_DEFAULT) | |
729425b1 | 781 | { |
a8517066 KH |
782 | int height = ((fontset = f->output_data.x->param_faces[i]->fontset) > 0 |
783 | ? FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height | |
784 | : FONT_HEIGHT (f->output_data.x->param_faces[i]->font)); | |
785 | ||
729425b1 RS |
786 | if (height > biggest) |
787 | biggest = height; | |
788 | } | |
789 | ||
7556890b | 790 | if (biggest == f->output_data.x->line_height) |
6717f691 | 791 | return 0; |
729425b1 | 792 | |
7556890b | 793 | f->output_data.x->line_height = biggest; |
6717f691 | 794 | return 1; |
729425b1 | 795 | } |
87485d6f | 796 | #endif /* not HAVE_X_WINDOWS */ |
867dd159 | 797 | \f |
7b7739b1 JB |
798 | /* Modify face TO by copying from FROM all properties which have |
799 | nondefault settings. */ | |
867dd159 | 800 | |
7b7739b1 JB |
801 | static void |
802 | merge_faces (from, to) | |
803 | struct face *from, *to; | |
804 | { | |
867dd159 RS |
805 | /* Only merge the font if it's the same width as the base font. |
806 | Otherwise ignore it, since we can't handle it properly. */ | |
68a97335 | 807 | if (from->font != (XFontStruct *) FACE_DEFAULT |
68a97335 JB |
808 | && same_size_fonts (from->font, to->font)) |
809 | to->font = from->font; | |
a8517066 KH |
810 | if (from->fontset != -1) |
811 | to->fontset = from->fontset; | |
7b7739b1 JB |
812 | if (from->foreground != FACE_DEFAULT) |
813 | to->foreground = from->foreground; | |
814 | if (from->background != FACE_DEFAULT) | |
815 | to->background = from->background; | |
f211082d | 816 | if (from->stipple != FACE_DEFAULT) |
cd0bb842 RS |
817 | { |
818 | to->stipple = from->stipple; | |
819 | to->pixmap_h = from->pixmap_h; | |
820 | to->pixmap_w = from->pixmap_w; | |
821 | } | |
7b7739b1 JB |
822 | if (from->underline) |
823 | to->underline = from->underline; | |
824 | } | |
825 | ||
660ed669 JB |
826 | /* Set up the basic set of facial parameters, based on the frame's |
827 | data; all faces are deltas applied to this. */ | |
867dd159 | 828 | |
660ed669 JB |
829 | static void |
830 | compute_base_face (f, face) | |
831 | FRAME_PTR f; | |
832 | struct face *face; | |
833 | { | |
660ed669 | 834 | face->gc = 0; |
cd0bb842 RS |
835 | face->foreground = FRAME_FOREGROUND_PIXEL (f); |
836 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
837 | face->font = FRAME_FONT (f); | |
a8517066 | 838 | face->fontset = -1; |
582080c1 | 839 | face->stipple = 0; |
660ed669 JB |
840 | face->underline = 0; |
841 | } | |
842 | ||
867dd159 RS |
843 | /* Return the face ID to use to display a special glyph which selects |
844 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
845 | be CURRENT_FACE. F is the frame. */ | |
846 | ||
847 | int | |
848 | compute_glyph_face (f, face_code, current_face) | |
849 | struct frame *f; | |
850 | int face_code, current_face; | |
851 | { | |
852 | struct face face; | |
853 | ||
854 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
855 | ||
856 | if (face_code >= 0 && face_code < FRAME_N_PARAM_FACES (f) | |
857 | && FRAME_PARAM_FACES (f) [face_code] != 0) | |
858 | merge_faces (FRAME_PARAM_FACES (f) [face_code], &face); | |
660ed669 | 859 | |
867dd159 RS |
860 | return intern_computed_face (f, &face); |
861 | } | |
2e16580f RS |
862 | |
863 | /* Return the face ID to use to display a special glyph which selects | |
864 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
865 | be CURRENT_FACE. F is the frame. */ | |
866 | ||
867 | int | |
868 | compute_glyph_face_1 (f, face_name, current_face) | |
869 | struct frame *f; | |
870 | Lisp_Object face_name; | |
871 | int current_face; | |
872 | { | |
873 | struct face face; | |
874 | ||
875 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
876 | ||
877 | if (!NILP (face_name)) | |
878 | { | |
879 | int facecode = face_name_id_number (f, face_name); | |
880 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
881 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
882 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
883 | } | |
884 | ||
885 | return intern_computed_face (f, &face); | |
886 | } | |
867dd159 | 887 | \f |
cb637678 | 888 | /* Return the face ID associated with a buffer position POS. |
7b7739b1 JB |
889 | Store into *ENDPTR the position at which a different face is needed. |
890 | This does not take account of glyphs that specify their own face codes. | |
f6b98e0b | 891 | F is the frame in use for display, and W is a window displaying |
bc0db68d RS |
892 | the current buffer. |
893 | ||
b349f4fb RS |
894 | REGION_BEG, REGION_END delimit the region, so it can be highlighted. |
895 | ||
896 | LIMIT is a position not to scan beyond. That is to limit | |
6f134486 RS |
897 | the time this function can take. |
898 | ||
899 | If MOUSE is nonzero, use the character's mouse-face, not its face. */ | |
bc0db68d | 900 | |
cb637678 | 901 | int |
6f134486 | 902 | compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) |
7b7739b1 | 903 | struct frame *f; |
f211082d | 904 | struct window *w; |
7b7739b1 | 905 | int pos; |
bc0db68d | 906 | int region_beg, region_end; |
7b7739b1 | 907 | int *endptr; |
b349f4fb | 908 | int limit; |
6f134486 | 909 | int mouse; |
7b7739b1 JB |
910 | { |
911 | struct face face; | |
b6d40e46 | 912 | Lisp_Object prop, position; |
7b7739b1 JB |
913 | int i, j, noverlays; |
914 | int facecode; | |
7b7739b1 | 915 | Lisp_Object *overlay_vec; |
f211082d | 916 | Lisp_Object frame; |
f6b98e0b | 917 | int endpos; |
6f134486 | 918 | Lisp_Object propname; |
f6b98e0b JB |
919 | |
920 | /* W must display the current buffer. We could write this function | |
921 | to use the frame and buffer of W, but right now it doesn't. */ | |
922 | if (XBUFFER (w->buffer) != current_buffer) | |
923 | abort (); | |
f211082d | 924 | |
ac22a6c4 | 925 | XSETFRAME (frame, f); |
7b7739b1 | 926 | |
f6b98e0b | 927 | endpos = ZV; |
bc0db68d RS |
928 | if (pos < region_beg && region_beg < endpos) |
929 | endpos = region_beg; | |
f6b98e0b | 930 | |
e0979810 | 931 | XSETFASTINT (position, pos); |
6f134486 RS |
932 | |
933 | if (mouse) | |
934 | propname = Qmouse_face; | |
935 | else | |
936 | propname = Qface; | |
937 | ||
938 | prop = Fget_text_property (position, propname, w->buffer); | |
939 | ||
b6d40e46 | 940 | { |
b349f4fb | 941 | Lisp_Object limit1, end; |
7b7739b1 | 942 | |
e0979810 | 943 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6f134486 | 944 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); |
b6d40e46 JB |
945 | if (INTEGERP (end)) |
946 | endpos = XINT (end); | |
947 | } | |
948 | ||
949 | { | |
f6b98e0b | 950 | int next_overlay; |
9516fe94 RS |
951 | int len; |
952 | ||
953 | /* First try with room for 40 overlays. */ | |
954 | len = 40; | |
955 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
956 | ||
7af31819 RS |
957 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
958 | &next_overlay, (int *) 0); | |
9516fe94 RS |
959 | |
960 | /* If there are more than 40, | |
961 | make enough space for all, and try again. */ | |
962 | if (noverlays > len) | |
963 | { | |
964 | len = noverlays; | |
965 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 966 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
7af31819 | 967 | &next_overlay, (int *) 0); |
9516fe94 | 968 | } |
b6d40e46 | 969 | |
f6b98e0b JB |
970 | if (next_overlay < endpos) |
971 | endpos = next_overlay; | |
b6d40e46 JB |
972 | } |
973 | ||
974 | *endptr = endpos; | |
7b7739b1 JB |
975 | |
976 | /* Optimize the default case. */ | |
bc0db68d RS |
977 | if (noverlays == 0 && NILP (prop) |
978 | && !(pos >= region_beg && pos < region_end)) | |
cb637678 | 979 | return 0; |
7b7739b1 | 980 | |
660ed669 | 981 | compute_base_face (f, &face); |
7b7739b1 | 982 | |
4699e6d2 RS |
983 | if (CONSP (prop)) |
984 | { | |
985 | /* We have a list of faces, merge them in reverse order */ | |
60573a90 RS |
986 | Lisp_Object length; |
987 | int len; | |
4699e6d2 RS |
988 | Lisp_Object *faces; |
989 | ||
60573a90 RS |
990 | length = Fsafe_length (prop); |
991 | len = XFASTINT (length); | |
992 | ||
4699e6d2 RS |
993 | /* Put them into an array */ |
994 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
995 | for (j = 0; j < len; j++) | |
996 | { | |
997 | faces[j] = Fcar (prop); | |
998 | prop = Fcdr (prop); | |
999 | } | |
1000 | /* So that we can merge them in the reverse order */ | |
1001 | for (j = len - 1; j >= 0; j--) | |
1002 | { | |
1003 | facecode = face_name_id_number (f, faces[j]); | |
1004 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
1005 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
1006 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
1007 | } | |
1008 | } | |
1009 | else if (!NILP (prop)) | |
7b7739b1 | 1010 | { |
1d9fd7fe | 1011 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
1012 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
1013 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
1014 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
7b7739b1 JB |
1015 | } |
1016 | ||
4d6ebff8 | 1017 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
7b7739b1 JB |
1018 | |
1019 | /* Now merge the overlay data in that order. */ | |
7b7739b1 JB |
1020 | for (i = 0; i < noverlays; i++) |
1021 | { | |
6f134486 | 1022 | prop = Foverlay_get (overlay_vec[i], propname); |
4699e6d2 RS |
1023 | if (CONSP (prop)) |
1024 | { | |
1025 | /* We have a list of faces, merge them in reverse order */ | |
60573a90 RS |
1026 | Lisp_Object length; |
1027 | int len; | |
4699e6d2 | 1028 | Lisp_Object *faces; |
60573a90 RS |
1029 | |
1030 | length = Fsafe_length (prop); | |
1031 | len = XFASTINT (length); | |
4699e6d2 RS |
1032 | |
1033 | /* Put them into an array */ | |
1034 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
1035 | for (j = 0; j < len; j++) | |
1036 | { | |
1037 | faces[j] = Fcar (prop); | |
1038 | prop = Fcdr (prop); | |
1039 | } | |
1040 | /* So that we can merge them in the reverse order */ | |
1041 | for (j = len - 1; j >= 0; j--) | |
1042 | { | |
1043 | facecode = face_name_id_number (f, faces[j]); | |
1044 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
1045 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
1046 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
1047 | } | |
1048 | } | |
1049 | else if (!NILP (prop)) | |
7b7739b1 JB |
1050 | { |
1051 | Lisp_Object oend; | |
1052 | int oendpos; | |
1053 | ||
1d9fd7fe | 1054 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
1055 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
1056 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
6f134486 | 1057 | merge_faces (FRAME_PARAM_FACES (f)[facecode], &face); |
7b7739b1 | 1058 | |
4d6ebff8 | 1059 | oend = OVERLAY_END (overlay_vec[i]); |
7b7739b1 | 1060 | oendpos = OVERLAY_POSITION (oend); |
f6b98e0b | 1061 | if (oendpos < endpos) |
7b7739b1 JB |
1062 | endpos = oendpos; |
1063 | } | |
1064 | } | |
1065 | ||
bc0db68d RS |
1066 | if (pos >= region_beg && pos < region_end) |
1067 | { | |
1068 | if (region_end < endpos) | |
1069 | endpos = region_end; | |
1070 | if (region_face >= 0 && region_face < next_face_id) | |
6f134486 | 1071 | merge_faces (FRAME_PARAM_FACES (f)[region_face], &face); |
bc0db68d RS |
1072 | } |
1073 | ||
7b7739b1 JB |
1074 | *endptr = endpos; |
1075 | ||
7b00de84 | 1076 | return intern_computed_face (f, &face); |
f211082d | 1077 | } |
867dd159 | 1078 | \f |
660ed669 JB |
1079 | /* Recompute the GC's for the default and modeline faces. |
1080 | We call this after changing frame parameters on which those GC's | |
1081 | depend. */ | |
fffc2367 | 1082 | |
660ed669 JB |
1083 | void |
1084 | recompute_basic_faces (f) | |
1085 | FRAME_PTR f; | |
1086 | { | |
1087 | /* If the frame's faces haven't been initialized yet, don't worry about | |
1088 | this stuff. */ | |
7b00de84 | 1089 | if (FRAME_N_PARAM_FACES (f) < 2) |
660ed669 JB |
1090 | return; |
1091 | ||
1092 | BLOCK_INPUT; | |
1093 | ||
1094 | if (FRAME_DEFAULT_FACE (f)->gc) | |
a8517066 KH |
1095 | { |
1096 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_DEFAULT_FACE (f)->gc); | |
1097 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_DEFAULT_FACE (f)->non_ascii_gc); | |
1098 | } | |
660ed669 | 1099 | if (FRAME_MODE_LINE_FACE (f)->gc) |
a8517066 KH |
1100 | { |
1101 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_MODE_LINE_FACE (f)->gc); | |
1102 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_MODE_LINE_FACE (f)->non_ascii_gc); | |
1103 | } | |
7b00de84 JB |
1104 | compute_base_face (f, FRAME_DEFAULT_FACE (f)); |
1105 | compute_base_face (f, FRAME_MODE_LINE_FACE (f)); | |
1106 | ||
1107 | merge_faces (FRAME_DEFAULT_PARAM_FACE (f), FRAME_DEFAULT_FACE (f)); | |
1108 | merge_faces (FRAME_MODE_LINE_PARAM_FACE (f), FRAME_MODE_LINE_FACE (f)); | |
1109 | ||
42120bc7 RS |
1110 | intern_face (f, FRAME_DEFAULT_FACE (f)); |
1111 | intern_face (f, FRAME_MODE_LINE_FACE (f)); | |
660ed669 JB |
1112 | |
1113 | UNBLOCK_INPUT; | |
1114 | } | |
1115 | ||
1116 | ||
c115973b | 1117 | \f |
cb637678 | 1118 | /* Lisp interface. */ |
c115973b | 1119 | |
c115973b JB |
1120 | DEFUN ("make-face-internal", Fmake_face_internal, Smake_face_internal, 1, 1, 0, |
1121 | "Create face number FACE-ID on all frames.") | |
1122 | (face_id) | |
1123 | Lisp_Object face_id; | |
1124 | { | |
87485d6f | 1125 | Lisp_Object rest, frame; |
c115973b JB |
1126 | int id = XINT (face_id); |
1127 | ||
f211082d JB |
1128 | CHECK_NUMBER (face_id, 0); |
1129 | if (id < 0 || id >= next_face_id) | |
1130 | error ("Face id out of range"); | |
c115973b | 1131 | |
87485d6f | 1132 | FOR_EACH_FRAME (rest, frame) |
c115973b | 1133 | { |
50e3dcf5 | 1134 | if (FRAME_MSDOS_P (XFRAME (frame)) || FRAME_X_P (XFRAME (frame))) |
87485d6f | 1135 | ensure_face_ready (XFRAME (frame), id); |
c115973b JB |
1136 | } |
1137 | return Qnil; | |
1138 | } | |
1139 | ||
1140 | ||
1141 | DEFUN ("set-face-attribute-internal", Fset_face_attribute_internal, | |
1142 | Sset_face_attribute_internal, 4, 4, 0, "") | |
1143 | (face_id, attr_name, attr_value, frame) | |
1144 | Lisp_Object face_id, attr_name, attr_value, frame; | |
1145 | { | |
1146 | struct face *face; | |
1147 | struct frame *f; | |
1148 | int magic_p; | |
1149 | int id; | |
53dfb388 | 1150 | int garbaged = 0; |
c115973b JB |
1151 | |
1152 | CHECK_FRAME (frame, 0); | |
f211082d | 1153 | CHECK_NUMBER (face_id, 0); |
c115973b JB |
1154 | CHECK_SYMBOL (attr_name, 0); |
1155 | ||
1156 | f = XFRAME (frame); | |
1157 | id = XINT (face_id); | |
f211082d JB |
1158 | if (id < 0 || id >= next_face_id) |
1159 | error ("Face id out of range"); | |
c115973b | 1160 | |
50e3dcf5 | 1161 | if (! FRAME_X_P (f) && ! FRAME_MSDOS_P (f)) |
b839cea0 | 1162 | return Qnil; |
b6d40e46 | 1163 | |
c115973b | 1164 | ensure_face_ready (f, id); |
7b00de84 | 1165 | face = FRAME_PARAM_FACES (f) [XFASTINT (face_id)]; |
c115973b JB |
1166 | |
1167 | if (EQ (attr_name, intern ("font"))) | |
1168 | { | |
87485d6f | 1169 | #if defined (MSDOS) && !defined (HAVE_X_WINDOWS) |
88d9cecb RS |
1170 | /* The one and only font. Must *not* be zero (which |
1171 | is taken to mean an unused face nowadays). */ | |
1172 | face->font = (XFontStruct *)1 ; | |
87485d6f | 1173 | #else |
a8517066 KH |
1174 | XFontStruct *font; |
1175 | int fontset; | |
1176 | ||
1177 | if (NILP (attr_value)) | |
1178 | { | |
1179 | font = (XFontStruct *) FACE_DEFAULT; | |
1180 | fontset = -1; | |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | CHECK_STRING (attr_value, 0); | |
1185 | fontset = fs_query_fontset (f, XSTRING (attr_value)->data); | |
1186 | if (fontset >= 0) | |
1187 | { | |
1188 | struct font_info *fontp; | |
1189 | ||
1190 | if (!(fontp = fs_load_font (f, FRAME_X_FONT_TABLE (f), | |
1191 | CHARSET_ASCII, NULL, fontset))) | |
1192 | Fsignal (Qerror, | |
1193 | Fcons (build_string ("ASCII font can't be loaded"), | |
1194 | Fcons (attr_value, Qnil))); | |
1195 | font = (XFontStruct *) (fontp->font); | |
1196 | } | |
1197 | else | |
1198 | font = load_font (f, attr_value); | |
1199 | } | |
1200 | ||
1201 | if (face->fontset == -1 && face->font != f->output_data.x->font) | |
ebc64af3 | 1202 | unload_font (f, face->font); |
a8517066 | 1203 | |
c115973b | 1204 | face->font = font; |
a8517066 | 1205 | face->fontset = fontset; |
6717f691 RS |
1206 | if (frame_update_line_height (f)) |
1207 | x_set_window_size (f, 0, f->width, f->height); | |
53dfb388 RS |
1208 | /* Must clear cache, since it might contain the font |
1209 | we just got rid of. */ | |
1210 | garbaged = 1; | |
87485d6f | 1211 | #endif |
c115973b JB |
1212 | } |
1213 | else if (EQ (attr_name, intern ("foreground"))) | |
1214 | { | |
f211082d | 1215 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
1216 | unload_color (f, face->foreground); |
1217 | face->foreground = new_color; | |
53dfb388 | 1218 | garbaged = 1; |
c115973b JB |
1219 | } |
1220 | else if (EQ (attr_name, intern ("background"))) | |
1221 | { | |
f211082d | 1222 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
1223 | unload_color (f, face->background); |
1224 | face->background = new_color; | |
53dfb388 | 1225 | garbaged = 1; |
c115973b | 1226 | } |
c115973b JB |
1227 | else if (EQ (attr_name, intern ("background-pixmap"))) |
1228 | { | |
cd0bb842 RS |
1229 | unsigned int w, h; |
1230 | unsigned long new_pixmap = load_pixmap (f, attr_value, &w, &h); | |
1231 | x_destroy_bitmap (f, face->stipple); | |
f211082d | 1232 | face->stipple = new_pixmap; |
c115973b JB |
1233 | face->pixmap_w = w; |
1234 | face->pixmap_h = h; | |
cd0bb842 | 1235 | garbaged = 1; |
c115973b | 1236 | } |
c115973b JB |
1237 | else if (EQ (attr_name, intern ("underline"))) |
1238 | { | |
1239 | int new = !NILP (attr_value); | |
1240 | face->underline = new; | |
1241 | } | |
1242 | else | |
1243 | error ("unknown face attribute"); | |
1244 | ||
7b00de84 JB |
1245 | if (id == 0 || id == 1) |
1246 | recompute_basic_faces (f); | |
c115973b | 1247 | |
53dfb388 RS |
1248 | /* We must redraw the frame whenever any face font or color changes, |
1249 | because it's possible that a merged (display) face | |
1250 | contains the font or color we just replaced. | |
1251 | And we must inhibit any Expose events until the redraw is done, | |
1252 | since they would try to use the invalid display faces. */ | |
1253 | if (garbaged) | |
f5e278c7 RS |
1254 | { |
1255 | SET_FRAME_GARBAGED (f); | |
1256 | FRAME_X_DISPLAY_INFO (f)->mouse_face_defer = 1; | |
1257 | } | |
584d0634 | 1258 | |
c115973b JB |
1259 | return Qnil; |
1260 | } | |
f211082d JB |
1261 | /* Return the face id for name NAME on frame FRAME. |
1262 | (It should be the same for all frames, | |
1263 | but it's as easy to use the "right" frame to look it up | |
1264 | as to use any other one.) */ | |
1265 | ||
1d9fd7fe JB |
1266 | int |
1267 | face_name_id_number (f, name) | |
1268 | FRAME_PTR f; | |
1269 | Lisp_Object name; | |
f211082d JB |
1270 | { |
1271 | Lisp_Object tem; | |
1272 | ||
82411f65 | 1273 | tem = Fcdr (assq_no_quit (name, f->face_alist)); |
b6d40e46 JB |
1274 | if (NILP (tem)) |
1275 | return 0; | |
f211082d JB |
1276 | CHECK_VECTOR (tem, 0); |
1277 | tem = XVECTOR (tem)->contents[2]; | |
1278 | CHECK_NUMBER (tem, 0); | |
1279 | return XINT (tem); | |
1280 | } | |
b5c53576 RS |
1281 | |
1282 | #endif /* HAVE_FACES */ | |
1283 | ||
1284 | \f | |
1285 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, 1, 1, 0, | |
1286 | "") | |
1287 | (frame) | |
1288 | Lisp_Object frame; | |
1289 | { | |
1290 | CHECK_FRAME (frame, 0); | |
1291 | return XFRAME (frame)->face_alist; | |
1292 | } | |
1293 | ||
1294 | DEFUN ("set-frame-face-alist", Fset_frame_face_alist, Sset_frame_face_alist, | |
1295 | 2, 2, 0, "") | |
1296 | (frame, value) | |
1297 | Lisp_Object frame, value; | |
1298 | { | |
1299 | CHECK_FRAME (frame, 0); | |
1300 | XFRAME (frame)->face_alist = value; | |
1301 | return value; | |
1302 | } | |
1303 | ||
1304 | DEFUN ("internal-next-face-id", Finternal_next_face_id, Sinternal_next_face_id, | |
1305 | 0, 0, 0, "") | |
1306 | () | |
1307 | { | |
1308 | return make_number (next_face_id++); | |
1309 | } | |
c115973b | 1310 | \f |
cb637678 JB |
1311 | /* Emacs initialization. */ |
1312 | ||
c115973b | 1313 | void |
f211082d | 1314 | syms_of_xfaces () |
c115973b | 1315 | { |
b5c53576 | 1316 | #ifdef HAVE_FACES |
f211082d JB |
1317 | Qface = intern ("face"); |
1318 | staticpro (&Qface); | |
6f134486 RS |
1319 | Qmouse_face = intern ("mouse-face"); |
1320 | staticpro (&Qmouse_face); | |
cd0bb842 RS |
1321 | Qpixmap_spec_p = intern ("pixmap-spec-p"); |
1322 | staticpro (&Qpixmap_spec_p); | |
f211082d | 1323 | |
bc0db68d RS |
1324 | DEFVAR_INT ("region-face", ®ion_face, |
1325 | "Face number to use to highlight the region\n\ | |
1326 | The region is highlighted with this face\n\ | |
1327 | when Transient Mark mode is enabled and the mark is active."); | |
1328 | ||
b5c53576 RS |
1329 | defsubr (&Smake_face_internal); |
1330 | defsubr (&Sset_face_attribute_internal); | |
1331 | #endif /* HAVE_FACES */ | |
1332 | ||
87485d6f | 1333 | #ifdef HAVE_X_WINDOWS |
cd0bb842 | 1334 | defsubr (&Spixmap_spec_p); |
87485d6f | 1335 | #endif |
b5c53576 | 1336 | |
c115973b JB |
1337 | defsubr (&Sframe_face_alist); |
1338 | defsubr (&Sset_frame_face_alist); | |
c115973b JB |
1339 | defsubr (&Sinternal_next_face_id); |
1340 | } |