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