Commit | Line | Data |
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cb637678 | 1 | /* "Face" primitives. |
3a22ee35 | 2 | Copyright (C) 1993, 1994 Free Software Foundation. |
7b7739b1 | 3 | |
c115973b JB |
4 | This file is part of GNU Emacs. |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 8 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
357f32fc | 20 | /* This is derived from work by Lucid (some parts very loosely so). */ |
7b7739b1 | 21 | |
c115973b JB |
22 | #include <sys/types.h> |
23 | #include <sys/stat.h> | |
24 | ||
18160b98 | 25 | #include <config.h> |
c115973b JB |
26 | #include "lisp.h" |
27 | ||
87485d6f | 28 | #ifdef HAVE_FACES |
cb637678 | 29 | |
87485d6f | 30 | #ifdef HAVE_X_WINDOWS |
c115973b | 31 | #include "xterm.h" |
87485d6f MW |
32 | #endif |
33 | #ifdef MSDOS | |
34 | #include "dosfns.h" | |
35 | #endif | |
c115973b | 36 | #include "buffer.h" |
f211082d | 37 | #include "dispextern.h" |
7b7739b1 | 38 | #include "frame.h" |
357f32fc | 39 | #include "blockinput.h" |
b6d40e46 | 40 | #include "window.h" |
bde7c500 | 41 | #include "intervals.h" |
c115973b | 42 | |
87485d6f | 43 | #ifdef HAVE_X_WINDOWS |
657070ac JB |
44 | /* Compensate for bug in Xos.h on some systems, on which it requires |
45 | time.h. On some such systems, Xos.h tries to redefine struct | |
46 | timeval and struct timezone if USG is #defined while it is | |
47 | #included. */ | |
6233db35 | 48 | #ifdef XOS_NEEDS_TIME_H |
657070ac | 49 | |
e11d186d | 50 | #include <time.h> |
657070ac JB |
51 | #undef USG |
52 | #include <X11/Xos.h> | |
53 | #define USG | |
e11d186d | 54 | #define __TIMEVAL__ |
e11d186d | 55 | |
657070ac | 56 | #else |
7a4d2269 | 57 | |
c115973b JB |
58 | #include <X11/Xos.h> |
59 | ||
657070ac | 60 | #endif |
87485d6f | 61 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
62 | \f |
63 | /* An explanation of the face data structures. */ | |
64 | ||
65 | /* ========================= Face Data Structures ========================= | |
66 | ||
7b00de84 | 67 | Let FACE-NAME be a symbol naming a face. |
cb637678 | 68 | |
7b00de84 JB |
69 | Let FACE-VECTOR be (assq FACE-NAME (frame-face-alist FRAME)) |
70 | FACE-VECTOR is either nil, or a vector of the form | |
cb637678 JB |
71 | [face NAME ID FONT FOREGROUND BACKGROUND BACKGROUND-PIXMAP UNDERLINE-P] |
72 | where | |
73 | face is the symbol `face', | |
74 | NAME is the symbol with which this vector is associated (a backpointer), | |
75 | ID is the face ID, an integer used internally by the C code to identify | |
76 | the face, | |
77 | FONT, FOREGROUND, and BACKGROUND are strings naming the fonts and colors | |
78 | to use with the face, | |
79 | BACKGROUND-PIXMAP is the name of an x bitmap filename, which we don't | |
80 | use right now, and | |
81 | UNDERLINE-P is non-nil if the face should be underlined. | |
7b00de84 JB |
82 | If any of these elements are nil, that parameter is considered |
83 | unspecified; parameters from faces specified by lower-priority | |
84 | overlays or text properties, or the parameters of the frame itself, | |
85 | can show through. (lisp/faces.el maintains these lists.) | |
86 | ||
87 | (assq FACE-NAME global-face-data) returns a vector describing the | |
88 | global parameters for that face. | |
89 | ||
7556890b | 90 | Let PARAM-FACE be FRAME->output_data.x->param_faces[Faref (FACE-VECTOR, 2)]. |
7b00de84 JB |
91 | PARAM_FACE is a struct face whose members are the Xlib analogues of |
92 | the parameters in FACE-VECTOR. If an element of FACE-VECTOR is | |
93 | nil, then the corresponding member of PARAM_FACE is FACE_DEFAULT. | |
94 | These faces are called "parameter faces", because they're the ones | |
95 | lisp manipulates to control what gets displayed. Elements 0 and 1 | |
7556890b | 96 | of FRAME->output_data.x->param_faces are special - they describe the |
7b00de84 JB |
97 | default and mode line faces. None of the faces in param_faces have |
98 | GC's. (See src/dispextern.h for the definiton of struct face. | |
99 | lisp/faces.el maintains the isomorphism between face_alist and | |
100 | param_faces.) | |
101 | ||
102 | The functions compute_char_face and compute_glyph_face find and | |
103 | combine the parameter faces associated with overlays and text | |
104 | properties. The resulting faces are called "computed faces"; none | |
105 | of their members are FACE_DEFAULT; they are completely specified. | |
106 | They then call intern_compute_face to search | |
7556890b | 107 | FRAME->output_data.x->computed_faces for a matching face, add one if |
7b00de84 | 108 | none is found, and return the index into |
7556890b | 109 | FRAME->output_data.x->computed_faces. FRAME's glyph matrices use these |
7b00de84 JB |
110 | indices to record the faces of the matrix characters, and the X |
111 | display hooks consult compute_faces to decide how to display these | |
112 | characters. Elements 0 and 1 of computed_faces always describe the | |
113 | default and mode-line faces. | |
114 | ||
cd0bb842 RS |
115 | Each computed face belongs to a particular frame. |
116 | ||
42120bc7 RS |
117 | Computed faces have graphics contexts some of the time. |
118 | intern_face builds a GC for a specified computed face | |
119 | if it doesn't have one already. | |
120 | clear_face_cache clears out the GCs of all computed faces. | |
121 | This is done from time to time so that we don't hold on to | |
122 | lots of GCs that are no longer needed. | |
7b00de84 JB |
123 | |
124 | Constraints: | |
125 | ||
126 | Symbols naming faces must have associations on all frames; for any | |
127 | FRAME, for all FACE-NAME, if (assq FACE-NAME (frame-face-alist | |
128 | FRAME)) is non-nil, it must be non-nil for all frames. | |
129 | ||
130 | Analogously, indices into param_faces must be valid on all frames; | |
131 | if param_faces[i] is a non-zero face pointer on one frame, then it | |
132 | must be filled in on all frames. Code assumes that face ID's can | |
133 | be used on any frame. | |
cb637678 JB |
134 | |
135 | Some subtleties: | |
7b7739b1 | 136 | |
7b00de84 JB |
137 | Why do we keep param_faces and computed_faces separate? |
138 | computed_faces contains an element for every combination of facial | |
139 | parameters we have ever displayed. indices into param_faces have | |
140 | to be valid on all frames. If they were the same array, then that | |
141 | array would grow very large on all frames, because any facial | |
142 | combination displayed on any frame would need to be a valid entry | |
42120bc7 | 143 | on all frames. */ |
cb637678 JB |
144 | \f |
145 | /* Definitions and declarations. */ | |
146 | ||
c115973b | 147 | /* The number of face-id's in use (same for all frames). */ |
f8758da5 | 148 | static int next_face_id; |
c115973b | 149 | |
bc0db68d | 150 | /* The number of the face to use to indicate the region. */ |
f8758da5 | 151 | static int region_face; |
bc0db68d | 152 | |
9516fe94 RS |
153 | /* This is what appears in a slot in a face to signify that the face |
154 | does not specify that display aspect. */ | |
7b7739b1 JB |
155 | #define FACE_DEFAULT (~0) |
156 | ||
6f134486 | 157 | Lisp_Object Qface, Qmouse_face; |
cd0bb842 | 158 | Lisp_Object Qpixmap_spec_p; |
f211082d | 159 | |
415445e2 | 160 | int face_name_id_number ( /* FRAME_PTR, Lisp_Object name */ ); |
cb637678 | 161 | |
415445e2 | 162 | struct face *intern_face ( /* FRAME_PTR, struct face * */ ); |
7b00de84 JB |
163 | static int new_computed_face ( /* FRAME_PTR, struct face * */ ); |
164 | static int intern_computed_face ( /* FRAME_PTR, struct face * */ ); | |
415445e2 | 165 | static void ensure_face_ready ( /* FRAME_PTR, int id */ ); |
254a1b66 | 166 | void recompute_basic_faces ( /* FRAME_PTR f */ ); |
c115973b | 167 | \f |
cb637678 JB |
168 | /* Allocating, copying, and comparing struct faces. */ |
169 | ||
170 | /* Allocate a new face */ | |
171 | static struct face * | |
172 | allocate_face () | |
173 | { | |
174 | struct face *result = (struct face *) xmalloc (sizeof (struct face)); | |
175 | bzero (result, sizeof (struct face)); | |
176 | result->font = (XFontStruct *) FACE_DEFAULT; | |
177 | result->foreground = FACE_DEFAULT; | |
178 | result->background = FACE_DEFAULT; | |
179 | result->stipple = FACE_DEFAULT; | |
180 | return result; | |
181 | } | |
c115973b | 182 | |
cb637678 | 183 | /* Make a new face that's a copy of an existing one. */ |
c115973b JB |
184 | static struct face * |
185 | copy_face (face) | |
186 | struct face *face; | |
187 | { | |
188 | struct face *result = allocate_face (); | |
189 | ||
190 | result->font = face->font; | |
191 | result->foreground = face->foreground; | |
192 | result->background = face->background; | |
f211082d | 193 | result->stipple = face->stipple; |
c115973b | 194 | result->underline = face->underline; |
cd0bb842 RS |
195 | result->pixmap_h = face->pixmap_h; |
196 | result->pixmap_w = face->pixmap_w; | |
c115973b JB |
197 | |
198 | return result; | |
199 | } | |
200 | ||
201 | static int | |
202 | face_eql (face1, face2) | |
203 | struct face *face1, *face2; | |
204 | { | |
cb637678 | 205 | return ( face1->font == face2->font |
c115973b JB |
206 | && face1->foreground == face2->foreground |
207 | && face1->background == face2->background | |
cb637678 JB |
208 | && face1->stipple == face2->stipple |
209 | && face1->underline == face2->underline); | |
c115973b | 210 | } |
cb637678 | 211 | \f |
42120bc7 | 212 | /* Managing graphics contexts of faces. */ |
c115973b | 213 | |
87485d6f | 214 | #ifdef HAVE_X_WINDOWS |
42120bc7 | 215 | /* Given a computed face, construct its graphics context if necessary. */ |
cb637678 JB |
216 | |
217 | struct face * | |
218 | intern_face (f, face) | |
219 | struct frame *f; | |
220 | struct face *face; | |
c115973b JB |
221 | { |
222 | GC gc; | |
223 | XGCValues xgcv; | |
224 | unsigned long mask; | |
225 | ||
42120bc7 RS |
226 | if (face->gc) |
227 | return face; | |
228 | ||
660ed669 JB |
229 | BLOCK_INPUT; |
230 | ||
f211082d JB |
231 | if (face->foreground != FACE_DEFAULT) |
232 | xgcv.foreground = face->foreground; | |
233 | else | |
7556890b | 234 | xgcv.foreground = f->output_data.x->foreground_pixel; |
660ed669 | 235 | |
f211082d JB |
236 | if (face->background != FACE_DEFAULT) |
237 | xgcv.background = face->background; | |
238 | else | |
7556890b | 239 | xgcv.background = f->output_data.x->background_pixel; |
660ed669 | 240 | |
3f000d8c | 241 | if (face->font && face->font != (XFontStruct *) FACE_DEFAULT) |
f211082d JB |
242 | xgcv.font = face->font->fid; |
243 | else | |
7556890b | 244 | xgcv.font = f->output_data.x->font->fid; |
660ed669 | 245 | |
c115973b | 246 | xgcv.graphics_exposures = 0; |
660ed669 | 247 | |
c115973b | 248 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; |
cd0bb842 | 249 | if (face->stipple && face->stipple != FACE_DEFAULT) |
95887807 RS |
250 | { |
251 | xgcv.fill_style = FillStippled; | |
252 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); | |
253 | mask |= GCFillStyle | GCStipple; | |
254 | } | |
cd0bb842 | 255 | |
42120bc7 | 256 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), |
c115973b | 257 | mask, &xgcv); |
660ed669 | 258 | |
f211082d | 259 | face->gc = gc; |
660ed669 JB |
260 | |
261 | UNBLOCK_INPUT; | |
42120bc7 RS |
262 | |
263 | return face; | |
c115973b | 264 | } |
cb637678 | 265 | |
42120bc7 RS |
266 | /* Clear out all graphics contexts for all computed faces |
267 | except for the default and mode line faces. | |
268 | This should be done from time to time just to avoid | |
269 | keeping too many graphics contexts that are no longer needed. */ | |
270 | ||
271 | void | |
272 | clear_face_cache () | |
273 | { | |
274 | Lisp_Object tail, frame; | |
275 | ||
276 | BLOCK_INPUT; | |
277 | FOR_EACH_FRAME (tail, frame) | |
278 | { | |
279 | FRAME_PTR f = XFRAME (frame); | |
280 | if (FRAME_X_P (f)) | |
281 | { | |
282 | int i; | |
283 | Display *dpy = FRAME_X_DISPLAY (f); | |
284 | ||
285 | for (i = 2; i < FRAME_N_COMPUTED_FACES (f); i++) | |
286 | { | |
287 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
288 | if (face->gc) | |
289 | XFreeGC (dpy, face->gc); | |
290 | face->gc = 0; | |
291 | } | |
292 | } | |
293 | } | |
294 | ||
295 | UNBLOCK_INPUT; | |
296 | } | |
297 | \f | |
cd0bb842 RS |
298 | /* Allocating, freeing, and duplicating fonts, colors, and pixmaps. |
299 | ||
300 | These functions operate on param faces only. | |
301 | Computed faces get their fonts, colors and pixmaps | |
302 | by merging param faces. */ | |
cb637678 JB |
303 | |
304 | static XFontStruct * | |
305 | load_font (f, name) | |
306 | struct frame *f; | |
307 | Lisp_Object name; | |
308 | { | |
309 | XFontStruct *font; | |
310 | ||
311 | if (NILP (name)) | |
312 | return (XFontStruct *) FACE_DEFAULT; | |
313 | ||
314 | CHECK_STRING (name, 0); | |
315 | BLOCK_INPUT; | |
42120bc7 | 316 | font = XLoadQueryFont (FRAME_X_DISPLAY (f), (char *) XSTRING (name)->data); |
cb637678 JB |
317 | UNBLOCK_INPUT; |
318 | ||
319 | if (! font) | |
320 | Fsignal (Qerror, Fcons (build_string ("undefined font"), | |
321 | Fcons (name, Qnil))); | |
322 | return font; | |
323 | } | |
324 | ||
325 | static void | |
326 | unload_font (f, font) | |
327 | struct frame *f; | |
328 | XFontStruct *font; | |
329 | { | |
330 | if (!font || font == ((XFontStruct *) FACE_DEFAULT)) | |
331 | return; | |
660ed669 JB |
332 | |
333 | BLOCK_INPUT; | |
42120bc7 | 334 | XFreeFont (FRAME_X_DISPLAY (f), font); |
660ed669 | 335 | UNBLOCK_INPUT; |
cb637678 JB |
336 | } |
337 | ||
338 | static unsigned long | |
339 | load_color (f, name) | |
340 | struct frame *f; | |
341 | Lisp_Object name; | |
342 | { | |
cb637678 JB |
343 | XColor color; |
344 | int result; | |
345 | ||
346 | if (NILP (name)) | |
347 | return FACE_DEFAULT; | |
348 | ||
cb637678 | 349 | CHECK_STRING (name, 0); |
34dda5f4 KH |
350 | /* if the colormap is full, defined_color will return a best match |
351 | to the values in an an existing cell. */ | |
a992f9d9 | 352 | result = defined_color(f, (char *) XSTRING (name)->data, &color, 1); |
cb637678 JB |
353 | if (! result) |
354 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
355 | Fcons (name, Qnil))); | |
cb637678 JB |
356 | return (unsigned long) color.pixel; |
357 | } | |
358 | ||
359 | static void | |
360 | unload_color (f, pixel) | |
361 | struct frame *f; | |
7a4d2269 | 362 | unsigned long pixel; |
cb637678 JB |
363 | { |
364 | Colormap cmap; | |
42120bc7 | 365 | Display *dpy = FRAME_X_DISPLAY (f); |
828e66d1 RS |
366 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
367 | ||
32dc0866 | 368 | if (pixel == FACE_DEFAULT |
0704eec9 RS |
369 | || pixel == BLACK_PIX_DEFAULT (f) |
370 | || pixel == WHITE_PIX_DEFAULT (f)) | |
cb637678 | 371 | return; |
42120bc7 | 372 | cmap = DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)); |
828e66d1 RS |
373 | |
374 | /* If display has an immutable color map, freeing colors is not | |
375 | necessary and some servers don't allow it. So don't do it. */ | |
376 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
377 | { | |
378 | BLOCK_INPUT; | |
379 | XFreeColors (dpy, cmap, &pixel, 1, (unsigned long)0); | |
380 | UNBLOCK_INPUT; | |
381 | } | |
cd0bb842 RS |
382 | } |
383 | ||
384 | DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, | |
385 | "Return t if ARG is a valid pixmap specification.") | |
386 | (arg) | |
387 | Lisp_Object arg; | |
388 | { | |
389 | Lisp_Object height, width; | |
390 | ||
391 | return ((STRINGP (arg) | |
392 | || (CONSP (arg) | |
e1befa75 KH |
393 | && CONSP (XCONS (arg)->cdr) |
394 | && CONSP (XCONS (XCONS (arg)->cdr)->cdr) | |
395 | && NILP (XCONS (XCONS (XCONS (arg)->cdr)->cdr)->cdr) | |
396 | && (width = XCONS (arg)->car, INTEGERP (width)) | |
397 | && (height = XCONS (XCONS (arg)->cdr)->car, INTEGERP (height)) | |
398 | && STRINGP (XCONS (XCONS (XCONS (arg)->cdr)->cdr)->car) | |
cd0bb842 RS |
399 | && XINT (width) > 0 |
400 | && XINT (height) > 0 | |
401 | /* The string must have enough bits for width * height. */ | |
e1befa75 KH |
402 | && ((XSTRING (XCONS (XCONS (XCONS (arg)->cdr)->cdr)->car)->size |
403 | * (INTBITS / sizeof (int))) | |
404 | >= XFASTINT (width) * XFASTINT (height)))) | |
cd0bb842 RS |
405 | ? Qt : Qnil); |
406 | } | |
407 | ||
408 | /* Load a bitmap according to NAME (which is either a file name | |
409 | or a pixmap spec). Return the bitmap_id (see xfns.c) | |
410 | or get an error if NAME is invalid. | |
411 | ||
412 | Store the bitmap width in *W_PTR and height in *H_PTR. */ | |
413 | ||
414 | static long | |
415 | load_pixmap (f, name, w_ptr, h_ptr) | |
7812a96f | 416 | FRAME_PTR f; |
cd0bb842 RS |
417 | Lisp_Object name; |
418 | unsigned int *w_ptr, *h_ptr; | |
419 | { | |
420 | int bitmap_id; | |
421 | Lisp_Object tem; | |
422 | ||
423 | if (NILP (name)) | |
424 | return FACE_DEFAULT; | |
425 | ||
426 | tem = Fpixmap_spec_p (name); | |
427 | if (NILP (tem)) | |
428 | wrong_type_argument (Qpixmap_spec_p, name); | |
429 | ||
430 | BLOCK_INPUT; | |
431 | ||
432 | if (CONSP (name)) | |
433 | { | |
434 | /* Decode a bitmap spec into a bitmap. */ | |
435 | ||
436 | int h, w; | |
437 | Lisp_Object bits; | |
438 | ||
439 | w = XINT (Fcar (name)); | |
440 | h = XINT (Fcar (Fcdr (name))); | |
441 | bits = Fcar (Fcdr (Fcdr (name))); | |
442 | ||
443 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
444 | w, h); | |
445 | } | |
446 | else | |
447 | { | |
448 | /* It must be a string -- a file name. */ | |
449 | bitmap_id = x_create_bitmap_from_file (f, name); | |
450 | } | |
451 | UNBLOCK_INPUT; | |
452 | ||
7812a96f RS |
453 | if (bitmap_id < 0) |
454 | Fsignal (Qerror, Fcons (build_string ("invalid or undefined bitmap"), | |
cd0bb842 RS |
455 | Fcons (name, Qnil))); |
456 | ||
457 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
458 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
459 | ||
460 | return bitmap_id; | |
cb637678 | 461 | } |
87485d6f MW |
462 | |
463 | #else /* !HAVE_X_WINDOWS */ | |
464 | ||
465 | /* Stubs for MSDOS when not under X. */ | |
466 | ||
467 | struct face * | |
468 | intern_face (f, face) | |
469 | struct frame *f; | |
470 | struct face *face; | |
471 | { | |
472 | return face; | |
473 | } | |
474 | ||
475 | void | |
476 | clear_face_cache () | |
477 | { | |
478 | /* No action. */ | |
479 | } | |
480 | ||
87485d6f MW |
481 | #ifdef MSDOS |
482 | unsigned long | |
483 | load_color (f, name) | |
484 | FRAME_PTR f; | |
485 | Lisp_Object name; | |
486 | { | |
487 | Lisp_Object result; | |
488 | ||
489 | if (NILP (name)) | |
490 | return FACE_DEFAULT; | |
491 | ||
492 | CHECK_STRING (name, 0); | |
493 | result = call1 (Qmsdos_color_translate, name); | |
494 | if (INTEGERP (result)) | |
495 | return XINT (result); | |
496 | else | |
497 | Fsignal (Qerror, Fcons (build_string ("undefined color"), | |
498 | Fcons (name, Qnil))); | |
499 | } | |
500 | #endif | |
501 | #endif /* !HAVE_X_WINDOWS */ | |
502 | ||
cb637678 | 503 | \f |
7b00de84 | 504 | /* Managing parameter face arrays for frames. */ |
cb637678 | 505 | |
cb637678 JB |
506 | void |
507 | init_frame_faces (f) | |
660ed669 | 508 | FRAME_PTR f; |
cb637678 JB |
509 | { |
510 | ensure_face_ready (f, 0); | |
cb637678 | 511 | ensure_face_ready (f, 1); |
660ed669 | 512 | |
fffc2367 RS |
513 | FRAME_N_COMPUTED_FACES (f) = 0; |
514 | FRAME_SIZE_COMPUTED_FACES (f) = 0; | |
515 | ||
7b00de84 JB |
516 | new_computed_face (f, FRAME_PARAM_FACES (f)[0]); |
517 | new_computed_face (f, FRAME_PARAM_FACES (f)[1]); | |
660ed669 | 518 | recompute_basic_faces (f); |
7b37f67b | 519 | |
87485d6f | 520 | #ifdef MULTI_FRAME |
1120eb5e JB |
521 | /* Find another X frame. */ |
522 | { | |
523 | Lisp_Object tail, frame, result; | |
524 | ||
525 | result = Qnil; | |
526 | FOR_EACH_FRAME (tail, frame) | |
527 | if (FRAME_X_P (XFRAME (frame)) | |
528 | && XFRAME (frame) != f) | |
529 | { | |
530 | result = frame; | |
531 | break; | |
532 | } | |
533 | ||
534 | /* If we didn't find any X frames other than f, then we don't need | |
535 | any faces other than 0 and 1, so we're okay. Otherwise, make | |
536 | sure that all faces valid on the selected frame are also valid | |
537 | on this new frame. */ | |
538 | if (FRAMEP (result)) | |
539 | { | |
540 | int i; | |
7b00de84 JB |
541 | int n_faces = FRAME_N_PARAM_FACES (XFRAME (result)); |
542 | struct face **faces = FRAME_PARAM_FACES (XFRAME (result)); | |
1120eb5e JB |
543 | |
544 | for (i = 2; i < n_faces; i++) | |
545 | if (faces[i]) | |
546 | ensure_face_ready (f, i); | |
547 | } | |
548 | } | |
87485d6f | 549 | #endif /* MULTI_FRAME */ |
cb637678 JB |
550 | } |
551 | ||
660ed669 | 552 | |
cb637678 | 553 | /* Called from Fdelete_frame. */ |
cd0bb842 | 554 | |
cb637678 JB |
555 | void |
556 | free_frame_faces (f) | |
557 | struct frame *f; | |
558 | { | |
42120bc7 | 559 | Display *dpy = FRAME_X_DISPLAY (f); |
cb637678 JB |
560 | int i; |
561 | ||
660ed669 JB |
562 | BLOCK_INPUT; |
563 | ||
7b00de84 | 564 | for (i = 0; i < FRAME_N_PARAM_FACES (f); i++) |
cb637678 | 565 | { |
7b00de84 | 566 | struct face *face = FRAME_PARAM_FACES (f) [i]; |
660ed669 JB |
567 | if (face) |
568 | { | |
7b00de84 JB |
569 | unload_font (f, face->font); |
570 | unload_color (f, face->foreground); | |
571 | unload_color (f, face->background); | |
cd0bb842 | 572 | x_destroy_bitmap (f, face->stipple); |
660ed669 JB |
573 | xfree (face); |
574 | } | |
cb637678 | 575 | } |
7b00de84 JB |
576 | xfree (FRAME_PARAM_FACES (f)); |
577 | FRAME_PARAM_FACES (f) = 0; | |
578 | FRAME_N_PARAM_FACES (f) = 0; | |
579 | ||
580 | /* All faces in FRAME_COMPUTED_FACES use resources copied from | |
42120bc7 RS |
581 | FRAME_PARAM_FACES; we can free them without fuss. |
582 | But we do free the GCs and the face objects themselves. */ | |
583 | for (i = 0; i < FRAME_N_COMPUTED_FACES (f); i++) | |
584 | { | |
585 | struct face *face = FRAME_COMPUTED_FACES (f) [i]; | |
586 | if (face) | |
587 | { | |
588 | if (face->gc) | |
589 | XFreeGC (dpy, face->gc); | |
590 | xfree (face); | |
591 | } | |
592 | } | |
7b00de84 JB |
593 | xfree (FRAME_COMPUTED_FACES (f)); |
594 | FRAME_COMPUTED_FACES (f) = 0; | |
595 | FRAME_N_COMPUTED_FACES (f) = 0; | |
660ed669 JB |
596 | |
597 | UNBLOCK_INPUT; | |
cb637678 | 598 | } |
c115973b | 599 | \f |
cb637678 JB |
600 | /* Interning faces in a frame's face array. */ |
601 | ||
660ed669 | 602 | static int |
7b00de84 JB |
603 | new_computed_face (f, new_face) |
604 | struct frame *f; | |
605 | struct face *new_face; | |
606 | { | |
607 | int i = FRAME_N_COMPUTED_FACES (f); | |
608 | ||
609 | if (i >= FRAME_SIZE_COMPUTED_FACES (f)) | |
610 | { | |
611 | int new_size = i + 32; | |
612 | ||
613 | FRAME_COMPUTED_FACES (f) | |
fffc2367 RS |
614 | = (struct face **) (FRAME_SIZE_COMPUTED_FACES (f) == 0 |
615 | ? xmalloc (new_size * sizeof (struct face *)) | |
616 | : xrealloc (FRAME_COMPUTED_FACES (f), | |
617 | new_size * sizeof (struct face *))); | |
7b00de84 JB |
618 | FRAME_SIZE_COMPUTED_FACES (f) = new_size; |
619 | } | |
620 | ||
621 | i = FRAME_N_COMPUTED_FACES (f)++; | |
622 | FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); | |
623 | return i; | |
624 | } | |
625 | ||
626 | ||
627 | /* Find a match for NEW_FACE in a FRAME's computed face array, and add | |
628 | it if we don't find one. */ | |
629 | static int | |
630 | intern_computed_face (f, new_face) | |
631 | struct frame *f; | |
b6d40e46 | 632 | struct face *new_face; |
cb637678 | 633 | { |
7b00de84 | 634 | int len = FRAME_N_COMPUTED_FACES (f); |
cb637678 JB |
635 | int i; |
636 | ||
7b00de84 | 637 | /* Search for a computed face already on F equivalent to FACE. */ |
cb637678 JB |
638 | for (i = 0; i < len; i++) |
639 | { | |
7b00de84 JB |
640 | if (! FRAME_COMPUTED_FACES (f)[i]) |
641 | abort (); | |
642 | if (face_eql (new_face, FRAME_COMPUTED_FACES (f)[i])) | |
cb637678 JB |
643 | return i; |
644 | } | |
645 | ||
646 | /* We didn't find one; add a new one. */ | |
7b00de84 | 647 | return new_computed_face (f, new_face); |
cb637678 JB |
648 | } |
649 | ||
7b00de84 | 650 | /* Make parameter face id ID valid on frame F. */ |
cb637678 JB |
651 | |
652 | static void | |
653 | ensure_face_ready (f, id) | |
654 | struct frame *f; | |
655 | int id; | |
656 | { | |
7b00de84 | 657 | if (FRAME_N_PARAM_FACES (f) <= id) |
cb637678 JB |
658 | { |
659 | int n = id + 10; | |
660 | int i; | |
7b00de84 JB |
661 | if (!FRAME_N_PARAM_FACES (f)) |
662 | FRAME_PARAM_FACES (f) | |
cb637678 JB |
663 | = (struct face **) xmalloc (sizeof (struct face *) * n); |
664 | else | |
7b00de84 JB |
665 | FRAME_PARAM_FACES (f) |
666 | = (struct face **) xrealloc (FRAME_PARAM_FACES (f), | |
cb637678 JB |
667 | sizeof (struct face *) * n); |
668 | ||
7b00de84 JB |
669 | bzero (FRAME_PARAM_FACES (f) + FRAME_N_PARAM_FACES (f), |
670 | (n - FRAME_N_PARAM_FACES (f)) * sizeof (struct face *)); | |
671 | FRAME_N_PARAM_FACES (f) = n; | |
cb637678 JB |
672 | } |
673 | ||
7b00de84 JB |
674 | if (FRAME_PARAM_FACES (f) [id] == 0) |
675 | FRAME_PARAM_FACES (f) [id] = allocate_face (); | |
cb637678 JB |
676 | } |
677 | \f | |
87485d6f | 678 | #ifdef HAVE_X_WINDOWS |
867dd159 RS |
679 | /* Return non-zero if FONT1 and FONT2 have the same width. |
680 | We do not check the height, because we can now deal with | |
681 | different heights. | |
660ed669 | 682 | We assume that they're both character-cell fonts. */ |
867dd159 | 683 | |
660ed669 JB |
684 | int |
685 | same_size_fonts (font1, font2) | |
686 | XFontStruct *font1, *font2; | |
687 | { | |
688 | XCharStruct *bounds1 = &font1->min_bounds; | |
689 | XCharStruct *bounds2 = &font2->min_bounds; | |
690 | ||
46407861 | 691 | return (bounds1->width == bounds2->width); |
660ed669 JB |
692 | } |
693 | ||
729425b1 | 694 | /* Update the line_height of frame F according to the biggest font in |
6717f691 | 695 | any face. Return nonzero if if line_height changes. */ |
729425b1 | 696 | |
6717f691 | 697 | int |
729425b1 RS |
698 | frame_update_line_height (f) |
699 | FRAME_PTR f; | |
700 | { | |
701 | int i; | |
7556890b | 702 | int biggest = FONT_HEIGHT (f->output_data.x->font); |
729425b1 | 703 | |
7556890b RS |
704 | for (i = 0; i < f->output_data.x->n_param_faces; i++) |
705 | if (f->output_data.x->param_faces[i] != 0 | |
706 | && f->output_data.x->param_faces[i]->font != (XFontStruct *) FACE_DEFAULT) | |
729425b1 | 707 | { |
7556890b | 708 | int height = FONT_HEIGHT (f->output_data.x->param_faces[i]->font); |
729425b1 RS |
709 | if (height > biggest) |
710 | biggest = height; | |
711 | } | |
712 | ||
7556890b | 713 | if (biggest == f->output_data.x->line_height) |
6717f691 | 714 | return 0; |
729425b1 | 715 | |
7556890b | 716 | f->output_data.x->line_height = biggest; |
6717f691 | 717 | return 1; |
729425b1 | 718 | } |
87485d6f | 719 | #endif /* not HAVE_X_WINDOWS */ |
867dd159 | 720 | \f |
7b7739b1 JB |
721 | /* Modify face TO by copying from FROM all properties which have |
722 | nondefault settings. */ | |
867dd159 | 723 | |
7b7739b1 JB |
724 | static void |
725 | merge_faces (from, to) | |
726 | struct face *from, *to; | |
727 | { | |
867dd159 RS |
728 | /* Only merge the font if it's the same width as the base font. |
729 | Otherwise ignore it, since we can't handle it properly. */ | |
68a97335 | 730 | if (from->font != (XFontStruct *) FACE_DEFAULT |
68a97335 JB |
731 | && same_size_fonts (from->font, to->font)) |
732 | to->font = from->font; | |
7b7739b1 JB |
733 | if (from->foreground != FACE_DEFAULT) |
734 | to->foreground = from->foreground; | |
735 | if (from->background != FACE_DEFAULT) | |
736 | to->background = from->background; | |
f211082d | 737 | if (from->stipple != FACE_DEFAULT) |
cd0bb842 RS |
738 | { |
739 | to->stipple = from->stipple; | |
740 | to->pixmap_h = from->pixmap_h; | |
741 | to->pixmap_w = from->pixmap_w; | |
742 | } | |
7b7739b1 JB |
743 | if (from->underline) |
744 | to->underline = from->underline; | |
745 | } | |
746 | ||
660ed669 JB |
747 | /* Set up the basic set of facial parameters, based on the frame's |
748 | data; all faces are deltas applied to this. */ | |
867dd159 | 749 | |
660ed669 JB |
750 | static void |
751 | compute_base_face (f, face) | |
752 | FRAME_PTR f; | |
753 | struct face *face; | |
754 | { | |
660ed669 | 755 | face->gc = 0; |
cd0bb842 RS |
756 | face->foreground = FRAME_FOREGROUND_PIXEL (f); |
757 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
758 | face->font = FRAME_FONT (f); | |
582080c1 | 759 | face->stipple = 0; |
660ed669 JB |
760 | face->underline = 0; |
761 | } | |
762 | ||
867dd159 RS |
763 | /* Return the face ID to use to display a special glyph which selects |
764 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
765 | be CURRENT_FACE. F is the frame. */ | |
766 | ||
767 | int | |
768 | compute_glyph_face (f, face_code, current_face) | |
769 | struct frame *f; | |
770 | int face_code, current_face; | |
771 | { | |
772 | struct face face; | |
773 | ||
774 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
775 | ||
776 | if (face_code >= 0 && face_code < FRAME_N_PARAM_FACES (f) | |
777 | && FRAME_PARAM_FACES (f) [face_code] != 0) | |
778 | merge_faces (FRAME_PARAM_FACES (f) [face_code], &face); | |
660ed669 | 779 | |
867dd159 RS |
780 | return intern_computed_face (f, &face); |
781 | } | |
2e16580f RS |
782 | |
783 | /* Return the face ID to use to display a special glyph which selects | |
784 | FACE_CODE as the face ID, assuming that ordinarily the face would | |
785 | be CURRENT_FACE. F is the frame. */ | |
786 | ||
787 | int | |
788 | compute_glyph_face_1 (f, face_name, current_face) | |
789 | struct frame *f; | |
790 | Lisp_Object face_name; | |
791 | int current_face; | |
792 | { | |
793 | struct face face; | |
794 | ||
795 | face = *FRAME_COMPUTED_FACES (f)[current_face]; | |
796 | ||
797 | if (!NILP (face_name)) | |
798 | { | |
799 | int facecode = face_name_id_number (f, face_name); | |
800 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
801 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
802 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
803 | } | |
804 | ||
805 | return intern_computed_face (f, &face); | |
806 | } | |
867dd159 | 807 | \f |
cb637678 | 808 | /* Return the face ID associated with a buffer position POS. |
7b7739b1 JB |
809 | Store into *ENDPTR the position at which a different face is needed. |
810 | This does not take account of glyphs that specify their own face codes. | |
f6b98e0b | 811 | F is the frame in use for display, and W is a window displaying |
bc0db68d RS |
812 | the current buffer. |
813 | ||
b349f4fb RS |
814 | REGION_BEG, REGION_END delimit the region, so it can be highlighted. |
815 | ||
816 | LIMIT is a position not to scan beyond. That is to limit | |
6f134486 RS |
817 | the time this function can take. |
818 | ||
819 | If MOUSE is nonzero, use the character's mouse-face, not its face. */ | |
bc0db68d | 820 | |
cb637678 | 821 | int |
6f134486 | 822 | compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) |
7b7739b1 | 823 | struct frame *f; |
f211082d | 824 | struct window *w; |
7b7739b1 | 825 | int pos; |
bc0db68d | 826 | int region_beg, region_end; |
7b7739b1 | 827 | int *endptr; |
b349f4fb | 828 | int limit; |
6f134486 | 829 | int mouse; |
7b7739b1 JB |
830 | { |
831 | struct face face; | |
b6d40e46 | 832 | Lisp_Object prop, position; |
7b7739b1 JB |
833 | int i, j, noverlays; |
834 | int facecode; | |
7b7739b1 | 835 | Lisp_Object *overlay_vec; |
f211082d | 836 | Lisp_Object frame; |
f6b98e0b | 837 | int endpos; |
6f134486 | 838 | Lisp_Object propname; |
f6b98e0b JB |
839 | |
840 | /* W must display the current buffer. We could write this function | |
841 | to use the frame and buffer of W, but right now it doesn't. */ | |
842 | if (XBUFFER (w->buffer) != current_buffer) | |
843 | abort (); | |
f211082d | 844 | |
ac22a6c4 | 845 | XSETFRAME (frame, f); |
7b7739b1 | 846 | |
f6b98e0b | 847 | endpos = ZV; |
bc0db68d RS |
848 | if (pos < region_beg && region_beg < endpos) |
849 | endpos = region_beg; | |
f6b98e0b | 850 | |
e0979810 | 851 | XSETFASTINT (position, pos); |
6f134486 RS |
852 | |
853 | if (mouse) | |
854 | propname = Qmouse_face; | |
855 | else | |
856 | propname = Qface; | |
857 | ||
858 | prop = Fget_text_property (position, propname, w->buffer); | |
859 | ||
b6d40e46 | 860 | { |
b349f4fb | 861 | Lisp_Object limit1, end; |
7b7739b1 | 862 | |
e0979810 | 863 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6f134486 | 864 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); |
b6d40e46 JB |
865 | if (INTEGERP (end)) |
866 | endpos = XINT (end); | |
867 | } | |
868 | ||
869 | { | |
f6b98e0b | 870 | int next_overlay; |
9516fe94 RS |
871 | int len; |
872 | ||
873 | /* First try with room for 40 overlays. */ | |
874 | len = 40; | |
875 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
876 | ||
7af31819 RS |
877 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
878 | &next_overlay, (int *) 0); | |
9516fe94 RS |
879 | |
880 | /* If there are more than 40, | |
881 | make enough space for all, and try again. */ | |
882 | if (noverlays > len) | |
883 | { | |
884 | len = noverlays; | |
885 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 886 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
7af31819 | 887 | &next_overlay, (int *) 0); |
9516fe94 | 888 | } |
b6d40e46 | 889 | |
f6b98e0b JB |
890 | if (next_overlay < endpos) |
891 | endpos = next_overlay; | |
b6d40e46 JB |
892 | } |
893 | ||
894 | *endptr = endpos; | |
7b7739b1 JB |
895 | |
896 | /* Optimize the default case. */ | |
bc0db68d RS |
897 | if (noverlays == 0 && NILP (prop) |
898 | && !(pos >= region_beg && pos < region_end)) | |
cb637678 | 899 | return 0; |
7b7739b1 | 900 | |
660ed669 | 901 | compute_base_face (f, &face); |
7b7739b1 | 902 | |
4699e6d2 RS |
903 | if (CONSP (prop)) |
904 | { | |
905 | /* We have a list of faces, merge them in reverse order */ | |
60573a90 RS |
906 | Lisp_Object length; |
907 | int len; | |
4699e6d2 RS |
908 | Lisp_Object *faces; |
909 | ||
60573a90 RS |
910 | length = Fsafe_length (prop); |
911 | len = XFASTINT (length); | |
912 | ||
4699e6d2 RS |
913 | /* Put them into an array */ |
914 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
915 | for (j = 0; j < len; j++) | |
916 | { | |
917 | faces[j] = Fcar (prop); | |
918 | prop = Fcdr (prop); | |
919 | } | |
920 | /* So that we can merge them in the reverse order */ | |
921 | for (j = len - 1; j >= 0; j--) | |
922 | { | |
923 | facecode = face_name_id_number (f, faces[j]); | |
924 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
925 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
926 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
927 | } | |
928 | } | |
929 | else if (!NILP (prop)) | |
7b7739b1 | 930 | { |
1d9fd7fe | 931 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
932 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
933 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
934 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
7b7739b1 JB |
935 | } |
936 | ||
4d6ebff8 | 937 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
7b7739b1 JB |
938 | |
939 | /* Now merge the overlay data in that order. */ | |
7b7739b1 JB |
940 | for (i = 0; i < noverlays; i++) |
941 | { | |
6f134486 | 942 | prop = Foverlay_get (overlay_vec[i], propname); |
4699e6d2 RS |
943 | if (CONSP (prop)) |
944 | { | |
945 | /* We have a list of faces, merge them in reverse order */ | |
60573a90 RS |
946 | Lisp_Object length; |
947 | int len; | |
4699e6d2 | 948 | Lisp_Object *faces; |
60573a90 RS |
949 | |
950 | length = Fsafe_length (prop); | |
951 | len = XFASTINT (length); | |
4699e6d2 RS |
952 | |
953 | /* Put them into an array */ | |
954 | faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
955 | for (j = 0; j < len; j++) | |
956 | { | |
957 | faces[j] = Fcar (prop); | |
958 | prop = Fcdr (prop); | |
959 | } | |
960 | /* So that we can merge them in the reverse order */ | |
961 | for (j = len - 1; j >= 0; j--) | |
962 | { | |
963 | facecode = face_name_id_number (f, faces[j]); | |
964 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) | |
965 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
966 | merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); | |
967 | } | |
968 | } | |
969 | else if (!NILP (prop)) | |
7b7739b1 JB |
970 | { |
971 | Lisp_Object oend; | |
972 | int oendpos; | |
973 | ||
1d9fd7fe | 974 | facecode = face_name_id_number (f, prop); |
7b00de84 JB |
975 | if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) |
976 | && FRAME_PARAM_FACES (f) [facecode] != 0) | |
6f134486 | 977 | merge_faces (FRAME_PARAM_FACES (f)[facecode], &face); |
7b7739b1 | 978 | |
4d6ebff8 | 979 | oend = OVERLAY_END (overlay_vec[i]); |
7b7739b1 | 980 | oendpos = OVERLAY_POSITION (oend); |
f6b98e0b | 981 | if (oendpos < endpos) |
7b7739b1 JB |
982 | endpos = oendpos; |
983 | } | |
984 | } | |
985 | ||
bc0db68d RS |
986 | if (pos >= region_beg && pos < region_end) |
987 | { | |
988 | if (region_end < endpos) | |
989 | endpos = region_end; | |
990 | if (region_face >= 0 && region_face < next_face_id) | |
6f134486 | 991 | merge_faces (FRAME_PARAM_FACES (f)[region_face], &face); |
bc0db68d RS |
992 | } |
993 | ||
7b7739b1 JB |
994 | *endptr = endpos; |
995 | ||
7b00de84 | 996 | return intern_computed_face (f, &face); |
f211082d | 997 | } |
867dd159 | 998 | \f |
660ed669 JB |
999 | /* Recompute the GC's for the default and modeline faces. |
1000 | We call this after changing frame parameters on which those GC's | |
1001 | depend. */ | |
fffc2367 | 1002 | |
660ed669 JB |
1003 | void |
1004 | recompute_basic_faces (f) | |
1005 | FRAME_PTR f; | |
1006 | { | |
1007 | /* If the frame's faces haven't been initialized yet, don't worry about | |
1008 | this stuff. */ | |
7b00de84 | 1009 | if (FRAME_N_PARAM_FACES (f) < 2) |
660ed669 JB |
1010 | return; |
1011 | ||
1012 | BLOCK_INPUT; | |
1013 | ||
1014 | if (FRAME_DEFAULT_FACE (f)->gc) | |
42120bc7 | 1015 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_DEFAULT_FACE (f)->gc); |
660ed669 | 1016 | if (FRAME_MODE_LINE_FACE (f)->gc) |
42120bc7 | 1017 | XFreeGC (FRAME_X_DISPLAY (f), FRAME_MODE_LINE_FACE (f)->gc); |
7b00de84 JB |
1018 | |
1019 | compute_base_face (f, FRAME_DEFAULT_FACE (f)); | |
1020 | compute_base_face (f, FRAME_MODE_LINE_FACE (f)); | |
1021 | ||
1022 | merge_faces (FRAME_DEFAULT_PARAM_FACE (f), FRAME_DEFAULT_FACE (f)); | |
1023 | merge_faces (FRAME_MODE_LINE_PARAM_FACE (f), FRAME_MODE_LINE_FACE (f)); | |
1024 | ||
42120bc7 RS |
1025 | intern_face (f, FRAME_DEFAULT_FACE (f)); |
1026 | intern_face (f, FRAME_MODE_LINE_FACE (f)); | |
660ed669 JB |
1027 | |
1028 | UNBLOCK_INPUT; | |
1029 | } | |
1030 | ||
1031 | ||
c115973b | 1032 | \f |
cb637678 | 1033 | /* Lisp interface. */ |
c115973b JB |
1034 | |
1035 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, 1, 1, 0, | |
1036 | "") | |
1037 | (frame) | |
1038 | Lisp_Object frame; | |
1039 | { | |
1040 | CHECK_FRAME (frame, 0); | |
1041 | return XFRAME (frame)->face_alist; | |
1042 | } | |
1043 | ||
1044 | DEFUN ("set-frame-face-alist", Fset_frame_face_alist, Sset_frame_face_alist, | |
1045 | 2, 2, 0, "") | |
1046 | (frame, value) | |
1047 | Lisp_Object frame, value; | |
1048 | { | |
1049 | CHECK_FRAME (frame, 0); | |
1050 | XFRAME (frame)->face_alist = value; | |
1051 | return value; | |
1052 | } | |
1053 | ||
1054 | ||
1055 | DEFUN ("make-face-internal", Fmake_face_internal, Smake_face_internal, 1, 1, 0, | |
1056 | "Create face number FACE-ID on all frames.") | |
1057 | (face_id) | |
1058 | Lisp_Object face_id; | |
1059 | { | |
87485d6f | 1060 | Lisp_Object rest, frame; |
c115973b JB |
1061 | int id = XINT (face_id); |
1062 | ||
f211082d JB |
1063 | CHECK_NUMBER (face_id, 0); |
1064 | if (id < 0 || id >= next_face_id) | |
1065 | error ("Face id out of range"); | |
c115973b | 1066 | |
87485d6f | 1067 | FOR_EACH_FRAME (rest, frame) |
c115973b | 1068 | { |
87485d6f MW |
1069 | if (FRAME_X_P (XFRAME (frame))) |
1070 | ensure_face_ready (XFRAME (frame), id); | |
c115973b JB |
1071 | } |
1072 | return Qnil; | |
1073 | } | |
1074 | ||
1075 | ||
1076 | DEFUN ("set-face-attribute-internal", Fset_face_attribute_internal, | |
1077 | Sset_face_attribute_internal, 4, 4, 0, "") | |
1078 | (face_id, attr_name, attr_value, frame) | |
1079 | Lisp_Object face_id, attr_name, attr_value, frame; | |
1080 | { | |
1081 | struct face *face; | |
1082 | struct frame *f; | |
1083 | int magic_p; | |
1084 | int id; | |
53dfb388 | 1085 | int garbaged = 0; |
c115973b JB |
1086 | |
1087 | CHECK_FRAME (frame, 0); | |
f211082d | 1088 | CHECK_NUMBER (face_id, 0); |
c115973b JB |
1089 | CHECK_SYMBOL (attr_name, 0); |
1090 | ||
1091 | f = XFRAME (frame); | |
1092 | id = XINT (face_id); | |
f211082d JB |
1093 | if (id < 0 || id >= next_face_id) |
1094 | error ("Face id out of range"); | |
c115973b | 1095 | |
b6d40e46 | 1096 | if (! FRAME_X_P (f)) |
b839cea0 | 1097 | return Qnil; |
b6d40e46 | 1098 | |
c115973b | 1099 | ensure_face_ready (f, id); |
7b00de84 | 1100 | face = FRAME_PARAM_FACES (f) [XFASTINT (face_id)]; |
c115973b JB |
1101 | |
1102 | if (EQ (attr_name, intern ("font"))) | |
1103 | { | |
87485d6f MW |
1104 | #if defined (MSDOS) && !defined (HAVE_X_WINDOWS) |
1105 | face->font = 0; /* The one and only font. */ | |
1106 | #else | |
f211082d | 1107 | XFontStruct *font = load_font (f, attr_value); |
7556890b | 1108 | if (face->font != f->output_data.x->font) |
ebc64af3 | 1109 | unload_font (f, face->font); |
c115973b | 1110 | face->font = font; |
6717f691 RS |
1111 | if (frame_update_line_height (f)) |
1112 | x_set_window_size (f, 0, f->width, f->height); | |
53dfb388 RS |
1113 | /* Must clear cache, since it might contain the font |
1114 | we just got rid of. */ | |
1115 | garbaged = 1; | |
87485d6f | 1116 | #endif |
c115973b JB |
1117 | } |
1118 | else if (EQ (attr_name, intern ("foreground"))) | |
1119 | { | |
f211082d | 1120 | unsigned long new_color = load_color (f, attr_value); |
c115973b JB |
1121 | unload_color (f, face->foreground); |
1122 | face->foreground = new_color; | |
53dfb388 | 1123 | garbaged = 1; |
c115973b JB |
1124 | } |
1125 | else if (EQ (attr_name, intern ("background"))) | |
1126 | { | |
f211082d | 1127 | unsigned long new_color = load_color (f, attr_value); |
c115973b | 1128 | unload_color (f, face->background); |
87485d6f MW |
1129 | #if defined (MSDOS) && !defined (HAVE_X_WINDOWS) |
1130 | new_color &= ~8; /* Bright would give blinking characters. */ | |
1131 | #endif | |
c115973b | 1132 | face->background = new_color; |
53dfb388 | 1133 | garbaged = 1; |
c115973b | 1134 | } |
c115973b JB |
1135 | else if (EQ (attr_name, intern ("background-pixmap"))) |
1136 | { | |
cd0bb842 RS |
1137 | unsigned int w, h; |
1138 | unsigned long new_pixmap = load_pixmap (f, attr_value, &w, &h); | |
1139 | x_destroy_bitmap (f, face->stipple); | |
f211082d | 1140 | face->stipple = new_pixmap; |
c115973b JB |
1141 | face->pixmap_w = w; |
1142 | face->pixmap_h = h; | |
cd0bb842 | 1143 | garbaged = 1; |
c115973b | 1144 | } |
c115973b JB |
1145 | else if (EQ (attr_name, intern ("underline"))) |
1146 | { | |
1147 | int new = !NILP (attr_value); | |
1148 | face->underline = new; | |
1149 | } | |
1150 | else | |
1151 | error ("unknown face attribute"); | |
1152 | ||
7b00de84 JB |
1153 | if (id == 0 || id == 1) |
1154 | recompute_basic_faces (f); | |
c115973b | 1155 | |
53dfb388 RS |
1156 | /* We must redraw the frame whenever any face font or color changes, |
1157 | because it's possible that a merged (display) face | |
1158 | contains the font or color we just replaced. | |
1159 | And we must inhibit any Expose events until the redraw is done, | |
1160 | since they would try to use the invalid display faces. */ | |
1161 | if (garbaged) | |
584d0634 | 1162 | SET_FRAME_GARBAGED (f); |
584d0634 | 1163 | |
c115973b JB |
1164 | return Qnil; |
1165 | } | |
1166 | ||
1167 | DEFUN ("internal-next-face-id", Finternal_next_face_id, Sinternal_next_face_id, | |
1168 | 0, 0, 0, "") | |
1169 | () | |
1170 | { | |
1171 | return make_number (next_face_id++); | |
1172 | } | |
f211082d JB |
1173 | |
1174 | /* Return the face id for name NAME on frame FRAME. | |
1175 | (It should be the same for all frames, | |
1176 | but it's as easy to use the "right" frame to look it up | |
1177 | as to use any other one.) */ | |
1178 | ||
1d9fd7fe JB |
1179 | int |
1180 | face_name_id_number (f, name) | |
1181 | FRAME_PTR f; | |
1182 | Lisp_Object name; | |
f211082d JB |
1183 | { |
1184 | Lisp_Object tem; | |
1185 | ||
82411f65 | 1186 | tem = Fcdr (assq_no_quit (name, f->face_alist)); |
b6d40e46 JB |
1187 | if (NILP (tem)) |
1188 | return 0; | |
f211082d JB |
1189 | CHECK_VECTOR (tem, 0); |
1190 | tem = XVECTOR (tem)->contents[2]; | |
1191 | CHECK_NUMBER (tem, 0); | |
1192 | return XINT (tem); | |
1193 | } | |
c115973b | 1194 | \f |
cb637678 JB |
1195 | /* Emacs initialization. */ |
1196 | ||
c115973b | 1197 | void |
f211082d | 1198 | syms_of_xfaces () |
c115973b | 1199 | { |
f211082d JB |
1200 | Qface = intern ("face"); |
1201 | staticpro (&Qface); | |
6f134486 RS |
1202 | Qmouse_face = intern ("mouse-face"); |
1203 | staticpro (&Qmouse_face); | |
cd0bb842 RS |
1204 | Qpixmap_spec_p = intern ("pixmap-spec-p"); |
1205 | staticpro (&Qpixmap_spec_p); | |
f211082d | 1206 | |
bc0db68d RS |
1207 | DEFVAR_INT ("region-face", ®ion_face, |
1208 | "Face number to use to highlight the region\n\ | |
1209 | The region is highlighted with this face\n\ | |
1210 | when Transient Mark mode is enabled and the mark is active."); | |
1211 | ||
87485d6f | 1212 | #ifdef HAVE_X_WINDOWS |
cd0bb842 | 1213 | defsubr (&Spixmap_spec_p); |
87485d6f | 1214 | #endif |
c115973b JB |
1215 | defsubr (&Sframe_face_alist); |
1216 | defsubr (&Sset_frame_face_alist); | |
1217 | defsubr (&Smake_face_internal); | |
1218 | defsubr (&Sset_face_attribute_internal); | |
1219 | defsubr (&Sinternal_next_face_id); | |
1220 | } | |
cb637678 | 1221 | |
87485d6f | 1222 | #endif /* HAVE_FACES */ |