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82641697 GM |
1 | /* xfaces.c -- "Face" primitives. |
2 | Copyright (C) 1993, 1994, 1998, 1999 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 | |
82641697 GM |
21 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
22 | ||
23 | /* Faces. | |
24 | ||
25 | When using Emacs with X, the display style of characters can be | |
26 | changed by defining `faces'. Each face can specify the following | |
27 | display attributes: | |
28 | ||
29 | 1. Font family or fontset alias name. | |
30 | ||
31 | 2. Relative proportionate width, aka character set width or set | |
32 | width (swidth), e.g. `semi-compressed'. | |
33 | ||
34 | 3. Font height in 1/10pt | |
35 | ||
36 | 4. Font weight, e.g. `bold'. | |
37 | ||
38 | 5. Font slant, e.g. `italic'. | |
39 | ||
40 | 6. Foreground color. | |
41 | ||
42 | 7. Background color. | |
43 | ||
44 | 8. Whether or not characters should be underlined, and in what color. | |
45 | ||
46 | 9. Whether or not characters should be displayed in inverse video. | |
47 | ||
48 | 10. A background stipple, a bitmap. | |
49 | ||
50 | 11. Whether or not characters should be overlined, and in what color. | |
51 | ||
52 | 12. Whether or not characters should be strike-through, and in what | |
53 | color. | |
54 | ||
55 | 13. Whether or not a box should be drawn around characters, the box | |
56 | type, and, for simple boxes, in what color. | |
57 | ||
58 | Faces are frame-local by nature because Emacs allows to define the | |
59 | same named face (face names are symbols) differently for different | |
60 | frames. Each frame has an alist of face definitions for all named | |
61 | faces. The value of a named face in such an alist is a Lisp vector | |
62 | with the symbol `face' in slot 0, and a slot for each each of the | |
63 | face attributes mentioned above. | |
64 | ||
65 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
66 | definitions from this list are used to initialize faces of newly | |
67 | created frames. | |
68 | ||
69 | A face doesn't have to specify all attributes. Those not specified | |
70 | have a value of `unspecified'. Faces specifying all attributes are | |
71 | called `fully-specified'. | |
72 | ||
73 | ||
74 | Face merging. | |
75 | ||
76 | The display style of a given character in the text is determined by | |
77 | combining several faces. This process is called `face merging'. | |
78 | Any aspect of the display style that isn't specified by overlays or | |
79 | text properties is taken from the `default' face. Since it is made | |
80 | sure that the default face is always fully-specified, face merging | |
81 | always results in a fully-specified face. | |
82 | ||
83 | ||
84 | Face realization. | |
85 | ||
86 | After all face attributes for a character have been determined by | |
87 | merging faces of that character, that face is `realized'. The | |
88 | realization process maps face attributes to what is physically | |
89 | available on the system where Emacs runs. The result is a | |
90 | `realized face' in form of a struct face which is stored in the | |
91 | face cache of the frame on which it was realized. | |
92 | ||
93 | Face realization is done in the context of the charset of the | |
94 | character to display because different fonts and encodings are used | |
95 | for different charsets. In other words, for characters of | |
96 | different charsets, different realized faces are needed to display | |
97 | them. | |
98 | ||
99 | Except for composite characters (CHARSET_COMPOSITION), faces are | |
100 | always realized for a specific character set and contain a specific | |
101 | font, even if the face being realized specifies a fontset (see | |
102 | `font selection' below). The reason is that the result of the new | |
103 | font selection stage is better than what can be done with | |
104 | statically defined font name patterns in fontsets. | |
105 | ||
106 | ||
107 | Unibyte text. | |
108 | ||
109 | In unibyte text, Emacs' charsets aren't applicable; function | |
110 | `char-charset' reports CHARSET_ASCII for all characters, including | |
111 | those > 0x7f. The X registry and encoding of fonts to use is | |
112 | determined from the variable `x-unibyte-registry-and-encoding' in | |
113 | this case. The variable is initialized at Emacs startup time from | |
114 | the font the user specified for Emacs. | |
115 | ||
116 | Currently all unibyte text, i.e. all buffers with | |
117 | enable_multibyte_characters nil are displayed with fonts of the | |
118 | same registry and encoding `x-unibyte-registry-and-encoding'. This | |
119 | is consistent with the fact that languages can also be set | |
120 | globally, only. | |
121 | ||
122 | ||
123 | Font selection. | |
124 | ||
125 | Font selection tries to find the best available matching font for a | |
126 | given (charset, face) combination. This is done slightly | |
127 | differently for faces specifying a fontset, or a font family name. | |
128 | ||
129 | If the face specifies a fontset alias name, that fontset determines | |
130 | a pattern for fonts of the given charset. If the face specifies a | |
131 | font family, a font pattern is constructed. Charset symbols have a | |
132 | property `x-charset-registry' for that purpose that maps a charset | |
133 | to an XLFD registry and encoding in the font pattern constructed. | |
134 | ||
135 | Available fonts on the system on which Emacs runs are then matched | |
136 | against the font pattern. The result of font selection is the best | |
137 | match for the given face attributes in this font list. | |
138 | ||
139 | Font selection can be influenced by the user. | |
140 | ||
141 | 1. The user can specify the relative importance he gives the face | |
142 | attributes width, height, weight, and slant by setting | |
143 | face-font-selection-order (faces.el) to a list of face attribute | |
144 | names. The default is '(:width :height :weight :slant), and means | |
145 | that font selection first tries to find a good match for the font | |
146 | width specified by a face, then---within fonts with that | |
147 | width---tries to find a best match for the specified font height, | |
148 | etc. | |
149 | ||
150 | 2. Setting face-alternative-font-family-alist allows the user to | |
151 | specify alternative font families to try if a family specified by a | |
152 | face doesn't exist. | |
153 | ||
154 | ||
155 | Composite characters. | |
156 | ||
157 | Realized faces for composite characters are the only ones having a | |
158 | fontset id >= 0. When a composite character is encoded into a | |
159 | sequence of non-composite characters (in xterm.c), a suitable font | |
160 | for the non-composite characters is then selected and realized, | |
161 | i.e. the realization process is delayed but in principle the same. | |
162 | ||
163 | ||
164 | Initialization of basic faces. | |
165 | ||
166 | The faces `default', `modeline' are considered `basic faces'. | |
167 | When redisplay happens the first time for a newly created frame, | |
168 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
169 | used to fill in unspecified attributes of the default face. */ | |
170 | ||
171 | /* Define SCALABLE_FONTS to a non-zero value to enable scalable | |
172 | font use. Define it to zero to disable scalable font use. | |
173 | ||
174 | Use of too many or too large scalable fonts can crash XFree86 | |
175 | servers. That's why I've put the code dealing with scalable fonts | |
176 | in #if's. */ | |
177 | ||
178 | #define SCALABLE_FONTS 1 | |
7b7739b1 | 179 | |
c115973b JB |
180 | #include <sys/types.h> |
181 | #include <sys/stat.h> | |
18160b98 | 182 | #include <config.h> |
c115973b | 183 | #include "lisp.h" |
a8517066 | 184 | #include "charset.h" |
b5c53576 RS |
185 | #include "frame.h" |
186 | ||
87485d6f | 187 | #ifdef HAVE_X_WINDOWS |
c115973b | 188 | #include "xterm.h" |
a8517066 | 189 | #include "fontset.h" |
87485d6f | 190 | #endif |
82641697 | 191 | |
87485d6f MW |
192 | #ifdef MSDOS |
193 | #include "dosfns.h" | |
194 | #endif | |
82641697 | 195 | |
c115973b | 196 | #include "buffer.h" |
f211082d | 197 | #include "dispextern.h" |
357f32fc | 198 | #include "blockinput.h" |
b6d40e46 | 199 | #include "window.h" |
bde7c500 | 200 | #include "intervals.h" |
c115973b | 201 | |
87485d6f | 202 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
203 | |
204 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
205 | time.h. On some such systems, Xos.h tries to redefine struct |
206 | timeval and struct timezone if USG is #defined while it is | |
207 | #included. */ | |
657070ac | 208 | |
82641697 | 209 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 210 | #include <time.h> |
657070ac JB |
211 | #undef USG |
212 | #include <X11/Xos.h> | |
213 | #define USG | |
e11d186d | 214 | #define __TIMEVAL__ |
82641697 GM |
215 | #else /* not XOS_NEEDS_TIME_H */ |
216 | #include <X11/Xos.h> | |
217 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 218 | |
82641697 | 219 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 220 | |
82641697 GM |
221 | #include <stdio.h> |
222 | #include <stdlib.h> | |
223 | #include <ctype.h> | |
224 | #include "keyboard.h" | |
c115973b | 225 | |
82641697 GM |
226 | #ifndef max |
227 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
228 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
229 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 230 | #endif |
cb637678 | 231 | |
82641697 GM |
232 | /* Non-zero if face attribute ATTR is unspecified. */ |
233 | ||
234 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
235 | ||
236 | /* Value is the number of elements of VECTOR. */ | |
237 | ||
238 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
239 | ||
240 | /* Make a copy of string S on the stack using alloca. Value is a pointer | |
241 | to the copy. */ | |
242 | ||
243 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 244 | |
82641697 GM |
245 | /* Make a copy of the contents of Lisp string S on the stack using |
246 | alloca. Value is a pointer to the copy. */ | |
247 | ||
248 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
249 | ||
250 | /* Size of hash table of realized faces in face caches (should be a | |
251 | prime number). */ | |
252 | ||
253 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
254 | ||
255 | /* Keyword symbols used for face attribute names. */ | |
256 | ||
257 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
258 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
259 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
260 | Lisp_Object QCreverse_video; | |
261 | Lisp_Object QCoverline, QCstrike_through, QCbox; | |
262 | ||
263 | /* Symbols used for attribute values. */ | |
264 | ||
265 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
266 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
267 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
268 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
269 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
270 | Lisp_Object Qultra_expanded; | |
271 | Lisp_Object Qreleased_button, Qpressed_button; | |
272 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
273 | Lisp_Object Qunspecified; | |
274 | ||
275 | /* The symbol `x-charset-registry'. This property of charsets defines | |
276 | the X registry and encoding that fonts should have that are used to | |
277 | display characters of that charset. */ | |
278 | ||
279 | Lisp_Object Qx_charset_registry; | |
280 | ||
281 | /* Names of basic faces. */ | |
282 | ||
283 | Lisp_Object Qdefault, Qmodeline, Qtoolbar, Qregion, Qbitmap_area; | |
284 | Lisp_Object Qtop_line; | |
285 | ||
286 | /* Default stipple pattern used on monochrome displays. This stipple | |
287 | pattern is used on monochrome displays instead of shades of gray | |
288 | for a face background color. See `set-face-stipple' for possible | |
289 | values for this variable. */ | |
290 | ||
291 | Lisp_Object Vface_default_stipple; | |
292 | ||
293 | /* Default registry and encoding to use for charsets whose charset | |
294 | symbols don't specify one. */ | |
295 | ||
296 | Lisp_Object Vface_default_registry; | |
297 | ||
298 | /* Alist of alternative font families. Each element is of the form | |
299 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
300 | try FAMILY1, then FAMILY2, ... */ | |
301 | ||
302 | Lisp_Object Vface_alternative_font_family_alist; | |
303 | ||
304 | /* Allowed scalable fonts. A value of nil means don't allow any | |
305 | scalable fonts. A value of t means allow the use of any scalable | |
306 | font. Otherwise, value must be a list of regular expressions. A | |
307 | font may be scaled if its name matches a regular expression in the | |
308 | list. */ | |
309 | ||
310 | #if SCALABLE_FONTS | |
311 | Lisp_Object Vscalable_fonts_allowed; | |
312 | #endif | |
313 | ||
057df17c GM |
314 | /* Maximum number of fonts to consider in font_list. If not an |
315 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
316 | ||
317 | Lisp_Object Vfont_list_limit; | |
318 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
319 | ||
82641697 GM |
320 | /* The symbols `foreground-color' and `background-color' which can be |
321 | used as part of a `face' property. This is for compatibility with | |
322 | Emacs 20.2. */ | |
323 | ||
324 | Lisp_Object Qforeground_color, Qbackground_color; | |
325 | ||
326 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 327 | |
ff83dbb1 | 328 | Lisp_Object Qface; |
82641697 GM |
329 | extern Lisp_Object Qmouse_face; |
330 | ||
331 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
332 | ||
cd0bb842 | 333 | Lisp_Object Qpixmap_spec_p; |
f211082d | 334 | |
82641697 GM |
335 | /* Alist of global face definitions. Each element is of the form |
336 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
337 | is a Lisp vector of face attributes. These faces are used | |
338 | to initialize faces for new frames. */ | |
cb637678 | 339 | |
82641697 | 340 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 341 | |
82641697 | 342 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 343 | |
82641697 | 344 | static int next_lface_id; |
c115973b | 345 | |
82641697 | 346 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 347 | |
82641697 GM |
348 | static Lisp_Object *lface_id_to_name; |
349 | static int lface_id_to_name_size; | |
c115973b | 350 | |
82641697 GM |
351 | /* An alist of elements (COLOR-NAME . INDEX) mapping color names |
352 | to color indices for tty frames. */ | |
353 | ||
354 | Lisp_Object Vface_tty_color_alist; | |
355 | ||
356 | /* Counter for calls to clear_face_cache. If this counter reaches | |
357 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
358 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
359 | ||
360 | static int clear_font_table_count; | |
361 | #define CLEAR_FONT_TABLE_COUNT 100 | |
362 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
363 | ||
364 | /* Non-zero means face attributes have been changed since the last | |
365 | redisplay. Used in redisplay_internal. */ | |
366 | ||
367 | int face_change_count; | |
368 | ||
369 | /* The total number of colors currently allocated. */ | |
370 | ||
371 | #if GLYPH_DEBUG | |
372 | static int ncolors_allocated; | |
373 | static int npixmaps_allocated; | |
374 | static int ngcs; | |
375 | #endif | |
376 | ||
377 | ||
378 | \f | |
379 | /* Function prototypes. */ | |
380 | ||
381 | struct font_name; | |
382 | struct table_entry; | |
383 | ||
384 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); | |
385 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
386 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
387 | int)); | |
388 | static int first_font_matching P_ ((struct frame *f, char *, | |
389 | struct font_name *)); | |
390 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
391 | struct font_name *, int, int, int)); | |
392 | static int font_scalable_p P_ ((struct font_name *)); | |
393 | static Lisp_Object deduce_unibyte_registry P_ ((struct frame *, char *)); | |
394 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); | |
395 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
396 | static char *xstrdup P_ ((char *)); | |
397 | static unsigned char *xstrlwr P_ ((unsigned char *)); | |
398 | static void signal_error P_ ((char *, Lisp_Object)); | |
7dbdfcf8 | 399 | static void add_to_log P_ ((struct frame *, char *, Lisp_Object, Lisp_Object)); |
82641697 GM |
400 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
401 | static void load_face_font_or_fontset P_ ((struct frame *, struct face *, char *, int)); | |
82641697 GM |
402 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
403 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
404 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
405 | static char *build_font_name P_ ((struct font_name *)); | |
406 | static void free_font_names P_ ((struct font_name *, int)); | |
407 | static int sorted_font_list P_ ((struct frame *, char *, | |
408 | int (*cmpfn) P_ ((const void *, const void *)), | |
409 | struct font_name **)); | |
410 | static int font_list P_ ((struct frame *, char *, char *, char *, struct font_name **)); | |
411 | static int try_font_list P_ ((struct frame *, Lisp_Object *, char *, char *, char *, | |
412 | struct font_name **)); | |
413 | static int cmp_font_names P_ ((const void *, const void *)); | |
414 | static struct face *realize_face P_ ((struct face_cache *, | |
415 | Lisp_Object *, int)); | |
416 | static struct face *realize_x_face P_ ((struct face_cache *, | |
417 | Lisp_Object *, int)); | |
418 | static struct face *realize_tty_face P_ ((struct face_cache *, | |
419 | Lisp_Object *, int)); | |
420 | static int realize_basic_faces P_ ((struct frame *)); | |
421 | static int realize_default_face P_ ((struct frame *)); | |
422 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
423 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
424 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
425 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
426 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
427 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
428 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
429 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
430 | static void clear_face_gcs P_ ((struct face_cache *)); | |
431 | static void free_face_cache P_ ((struct face_cache *)); | |
432 | static int face_numeric_weight P_ ((Lisp_Object)); | |
433 | static int face_numeric_slant P_ ((Lisp_Object)); | |
434 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
435 | static int face_fontset P_ ((struct frame *, Lisp_Object *)); | |
436 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, | |
437 | Lisp_Object)); | |
438 | static char *choose_face_fontset_font P_ ((struct frame *, Lisp_Object *, | |
439 | int, int)); | |
440 | static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); | |
441 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, | |
442 | Lisp_Object)); | |
443 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, char *, | |
444 | int)); | |
445 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); | |
446 | static struct face *make_realized_face P_ ((Lisp_Object *, int, Lisp_Object)); | |
447 | static void free_realized_faces P_ ((struct face_cache *)); | |
448 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
449 | struct font_name *, int)); | |
450 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
451 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
452 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
453 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
454 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
455 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
456 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
457 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
458 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
459 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
460 | int, int)); | |
461 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
462 | struct font_name *, int, int)); | |
463 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, | |
464 | struct font_name *, int)); | |
465 | ||
466 | #ifdef HAVE_X_WINDOWS | |
467 | ||
468 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
469 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
470 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
471 | int (*cmpfn) P_ ((const void *, const void *)))); | |
472 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
473 | static void x_free_gc P_ ((struct frame *, GC)); | |
474 | static void clear_font_table P_ ((struct frame *)); | |
475 | ||
476 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 477 | |
cb637678 | 478 | \f |
82641697 GM |
479 | /*********************************************************************** |
480 | Utilities | |
481 | ***********************************************************************/ | |
c115973b | 482 | |
87485d6f | 483 | #ifdef HAVE_X_WINDOWS |
cb637678 | 484 | |
82641697 GM |
485 | /* Create and return a GC for use on frame F. GC values and mask |
486 | are given by XGCV and MASK. */ | |
487 | ||
488 | static INLINE GC | |
489 | x_create_gc (f, mask, xgcv) | |
cb637678 | 490 | struct frame *f; |
82641697 GM |
491 | unsigned long mask; |
492 | XGCValues *xgcv; | |
c115973b JB |
493 | { |
494 | GC gc; | |
82641697 GM |
495 | BLOCK_INPUT; |
496 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
497 | UNBLOCK_INPUT; | |
498 | IF_DEBUG (++ngcs); | |
499 | return gc; | |
500 | } | |
c115973b | 501 | |
42120bc7 | 502 | |
82641697 GM |
503 | /* Free GC which was used on frame F. */ |
504 | ||
505 | static INLINE void | |
506 | x_free_gc (f, gc) | |
507 | struct frame *f; | |
508 | GC gc; | |
509 | { | |
660ed669 | 510 | BLOCK_INPUT; |
82641697 GM |
511 | xassert (--ngcs >= 0); |
512 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
513 | UNBLOCK_INPUT; | |
514 | } | |
660ed669 | 515 | |
82641697 | 516 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 517 | |
660ed669 | 518 | |
82641697 GM |
519 | /* Like strdup, but uses xmalloc. */ |
520 | ||
521 | static char * | |
522 | xstrdup (s) | |
523 | char *s; | |
524 | { | |
525 | int len = strlen (s) + 1; | |
526 | char *p = (char *) xmalloc (len); | |
527 | bcopy (s, p, len); | |
528 | return p; | |
529 | } | |
660ed669 | 530 | |
660ed669 | 531 | |
82641697 GM |
532 | /* Like stricmp. Used to compare parts of font names which are in |
533 | ISO8859-1. */ | |
534 | ||
535 | int | |
536 | xstricmp (s1, s2) | |
537 | unsigned char *s1, *s2; | |
538 | { | |
539 | while (*s1 && *s2) | |
95887807 | 540 | { |
82641697 GM |
541 | unsigned char c1 = tolower (*s1); |
542 | unsigned char c2 = tolower (*s2); | |
543 | if (c1 != c2) | |
544 | return c1 < c2 ? -1 : 1; | |
545 | ++s1, ++s2; | |
95887807 | 546 | } |
cd0bb842 | 547 | |
82641697 GM |
548 | if (*s1 == 0) |
549 | return *s2 == 0 ? 0 : -1; | |
550 | return 1; | |
551 | } | |
660ed669 | 552 | |
660ed669 | 553 | |
82641697 | 554 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 555 | |
82641697 GM |
556 | static unsigned char * |
557 | xstrlwr (s) | |
558 | unsigned char *s; | |
559 | { | |
560 | unsigned char *p = s; | |
561 | ||
562 | for (p = s; *p; ++p) | |
563 | *p = tolower (*p); | |
564 | ||
565 | return s; | |
c115973b | 566 | } |
cb637678 | 567 | |
42120bc7 | 568 | |
82641697 GM |
569 | /* Signal `error' with message S, and additional argument ARG. */ |
570 | ||
571 | static void | |
572 | signal_error (s, arg) | |
573 | char *s; | |
574 | Lisp_Object arg; | |
42120bc7 | 575 | { |
82641697 GM |
576 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
577 | } | |
42120bc7 | 578 | |
82641697 GM |
579 | |
580 | /* Display a message with format string FORMAT and arguments ARG1 and | |
581 | ARG2 on frame F. Used to display errors if fonts, bitmaps, colors | |
582 | etc. for a realized face on frame F cannot be loaded. (If we would | |
583 | signal an error in these cases, we would end up in an infinite | |
584 | recursion because this would stop realization, and the redisplay | |
585 | triggered by the signal would try to realize that same face again.) | |
586 | ||
587 | If basic faces of F are not realized, just add the message to the | |
588 | messages buffer "*Messages*". Because Fmessage calls | |
589 | echo_area_display which tries to realize basic faces again, we would | |
590 | otherwise also end in an infinite recursion. */ | |
591 | ||
592 | static void | |
7dbdfcf8 | 593 | add_to_log (f, format, arg1, arg2) |
82641697 GM |
594 | struct frame *f; |
595 | char *format; | |
596 | Lisp_Object arg1, arg2; | |
597 | { | |
598 | Lisp_Object args[3]; | |
599 | Lisp_Object nargs; | |
7dbdfcf8 GM |
600 | Lisp_Object msg; |
601 | char *buffer; | |
82641697 GM |
602 | extern int waiting_for_input; |
603 | ||
604 | /* Function note_mouse_highlight calls face_at_buffer_position which | |
605 | may realize a face. If some attribute of that face is invalid, | |
606 | say an invalid color, don't display an error to avoid calling | |
607 | Lisp from XTread_socket. */ | |
608 | if (waiting_for_input) | |
609 | return; | |
610 | ||
611 | nargs = make_number (DIM (args)); | |
612 | args[0] = build_string (format); | |
613 | args[1] = arg1; | |
614 | args[2] = arg2; | |
7dbdfcf8 GM |
615 | msg = Fformat (nargs, args); |
616 | ||
617 | /* Log the error, but don't display it in the echo area. This | |
618 | proves to be annoying in many cases. */ | |
619 | buffer = LSTRDUPA (msg); | |
620 | message_dolog (buffer, strlen (buffer), 1, 0); | |
82641697 | 621 | } |
42120bc7 | 622 | |
82641697 GM |
623 | |
624 | /* If FRAME is nil, return selected_frame. Otherwise, check that | |
625 | FRAME is a live frame, and return a pointer to it. NPARAM | |
626 | is the parameter number of FRAME, for CHECK_LIVE_FRAME. This is | |
627 | here because it's a frequent pattern in Lisp function definitions. */ | |
628 | ||
629 | static INLINE struct frame * | |
630 | frame_or_selected_frame (frame, nparam) | |
631 | Lisp_Object frame; | |
632 | int nparam; | |
633 | { | |
634 | struct frame *f; | |
635 | ||
636 | if (NILP (frame)) | |
637 | f = selected_frame; | |
638 | else | |
639 | { | |
640 | CHECK_LIVE_FRAME (frame, nparam); | |
641 | f = XFRAME (frame); | |
42120bc7 RS |
642 | } |
643 | ||
82641697 | 644 | return f; |
42120bc7 | 645 | } |
82641697 | 646 | |
42120bc7 | 647 | \f |
82641697 GM |
648 | /*********************************************************************** |
649 | Frames and faces | |
650 | ***********************************************************************/ | |
cd0bb842 | 651 | |
82641697 | 652 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 653 | |
82641697 GM |
654 | void |
655 | init_frame_faces (f) | |
cb637678 | 656 | struct frame *f; |
cb637678 | 657 | { |
82641697 GM |
658 | /* Make a face cache, if F doesn't have one. */ |
659 | if (FRAME_FACE_CACHE (f) == NULL) | |
660 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
661 | ||
662 | #ifdef HAVE_X_WINDOWS | |
663 | /* Make the image cache. */ | |
664 | if (FRAME_X_P (f)) | |
665 | { | |
666 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
667 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
668 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
669 | } | |
670 | #endif /* HAVE_X_WINDOWS */ | |
cb637678 | 671 | |
82641697 GM |
672 | /* Realize basic faces. Must have enough information in frame |
673 | parameters to realize basic faces at this point. */ | |
674 | #ifdef HAVE_X_WINDOWS | |
675 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
676 | #endif | |
677 | if (!realize_basic_faces (f)) | |
678 | abort (); | |
679 | } | |
cb637678 | 680 | |
cb637678 | 681 | |
82641697 | 682 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 683 | |
82641697 GM |
684 | void |
685 | free_frame_faces (f) | |
cb637678 | 686 | struct frame *f; |
cb637678 | 687 | { |
82641697 GM |
688 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
689 | ||
690 | if (face_cache) | |
691 | { | |
692 | free_face_cache (face_cache); | |
693 | FRAME_FACE_CACHE (f) = NULL; | |
694 | } | |
660ed669 | 695 | |
82641697 GM |
696 | #ifdef HAVE_X_WINDOWS |
697 | if (FRAME_X_P (f)) | |
195f798e | 698 | { |
82641697 GM |
699 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
700 | if (image_cache) | |
195f798e | 701 | { |
82641697 GM |
702 | --image_cache->refcount; |
703 | if (image_cache->refcount == 0) | |
704 | free_image_cache (f); | |
195f798e RS |
705 | } |
706 | } | |
82641697 | 707 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
708 | } |
709 | ||
82641697 GM |
710 | |
711 | /* Recompute basic faces for frame F. Call this after changing frame | |
712 | parameters on which those faces depend, or when realized faces have | |
713 | been freed due to changing attributes of named faces. */ | |
714 | ||
715 | void | |
716 | recompute_basic_faces (f) | |
cb637678 | 717 | struct frame *f; |
cb637678 | 718 | { |
82641697 GM |
719 | if (FRAME_FACE_CACHE (f)) |
720 | { | |
721 | int realized_p = realize_basic_faces (f); | |
722 | xassert (realized_p); | |
723 | } | |
724 | } | |
cb637678 | 725 | |
cb637678 | 726 | |
82641697 GM |
727 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
728 | try to free unused fonts, too. */ | |
cb637678 | 729 | |
adfea139 | 730 | void |
82641697 GM |
731 | clear_face_cache (clear_fonts_p) |
732 | int clear_fonts_p; | |
cb637678 | 733 | { |
82641697 GM |
734 | #ifdef HAVE_X_WINDOWS |
735 | Lisp_Object tail, frame; | |
736 | struct frame *f; | |
828e66d1 | 737 | |
82641697 GM |
738 | if (clear_fonts_p |
739 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 740 | { |
82641697 GM |
741 | /* From time to time see if we can unload some fonts. This also |
742 | frees all realized faces on all frames. Fonts needed by | |
743 | faces will be loaded again when faces are realized again. */ | |
744 | clear_font_table_count = 0; | |
195f798e | 745 | |
82641697 | 746 | FOR_EACH_FRAME (tail, frame) |
195f798e | 747 | { |
82641697 GM |
748 | f = XFRAME (frame); |
749 | if (FRAME_X_P (f) | |
750 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
195f798e | 751 | { |
82641697 GM |
752 | free_all_realized_faces (frame); |
753 | clear_font_table (f); | |
754 | } | |
755 | } | |
756 | } | |
757 | else | |
758 | { | |
759 | /* Clear GCs of realized faces. */ | |
760 | FOR_EACH_FRAME (tail, frame) | |
761 | { | |
762 | f = XFRAME (frame); | |
763 | if (FRAME_X_P (f)) | |
764 | { | |
765 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
766 | clear_image_cache (f, 0); | |
195f798e RS |
767 | } |
768 | } | |
828e66d1 | 769 | } |
82641697 | 770 | #endif /* HAVE_X_WINDOWS */ |
cd0bb842 RS |
771 | } |
772 | ||
82641697 GM |
773 | |
774 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
775 | "Clear face caches on all frames.\n\ | |
776 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
777 | (thorougly) | |
778 | Lisp_Object thorougly; | |
cd0bb842 | 779 | { |
82641697 GM |
780 | clear_face_cache (!NILP (thorougly)); |
781 | return Qnil; | |
782 | } | |
783 | ||
784 | ||
785 | ||
786 | #ifdef HAVE_X_WINDOWS | |
787 | ||
788 | ||
789 | /* Remove those fonts from the font table of frame F that are not used | |
790 | by fontsets. Called from clear_face_cache from time to time. */ | |
791 | ||
792 | static void | |
793 | clear_font_table (f) | |
794 | struct frame *f; | |
795 | { | |
796 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
797 | char *used; | |
798 | Lisp_Object rest, frame; | |
799 | int i; | |
800 | ||
801 | xassert (FRAME_X_P (f)); | |
802 | ||
803 | used = (char *) alloca (dpyinfo->n_fonts * sizeof *used); | |
804 | bzero (used, dpyinfo->n_fonts * sizeof *used); | |
805 | ||
806 | /* For all frames with the same x_display_info as F, record | |
807 | in `used' those fonts that are in use by fontsets. */ | |
808 | FOR_EACH_FRAME (rest, frame) | |
809 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
810 | { | |
811 | struct frame *f = XFRAME (frame); | |
812 | struct fontset_data *fontset_data = FRAME_FONTSET_DATA (f); | |
813 | ||
814 | for (i = 0; i < fontset_data->n_fontsets; ++i) | |
815 | { | |
816 | struct fontset_info *info = fontset_data->fontset_table[i]; | |
817 | int j; | |
818 | ||
819 | for (j = 0; j <= MAX_CHARSET; ++j) | |
820 | { | |
821 | int idx = info->font_indexes[j]; | |
822 | if (idx >= 0) | |
823 | used[idx] = 1; | |
824 | } | |
825 | } | |
826 | } | |
827 | ||
828 | /* Free those fonts that are not used by fontsets. */ | |
829 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
830 | if (used[i] == 0 && dpyinfo->font_table[i].name) | |
831 | { | |
832 | struct font_info *font_info = dpyinfo->font_table + i; | |
833 | ||
834 | /* Free names. In xfns.c there is a comment that full_name | |
835 | should never be freed because it is always shared with | |
836 | something else. I don't think this is true anymore---see | |
837 | x_load_font. It's either equal to font_info->name or | |
838 | allocated via xmalloc, and there seems to be no place in | |
839 | the source files where full_name is transferred to another | |
840 | data structure. */ | |
841 | if (font_info->full_name != font_info->name) | |
842 | xfree (font_info->full_name); | |
843 | xfree (font_info->name); | |
844 | ||
845 | /* Free the font. */ | |
846 | BLOCK_INPUT; | |
847 | XFreeFont (dpyinfo->display, font_info->font); | |
848 | UNBLOCK_INPUT; | |
849 | ||
850 | /* Mark font table slot free. */ | |
851 | font_info->font = NULL; | |
852 | font_info->name = font_info->full_name = NULL; | |
853 | } | |
854 | } | |
855 | ||
856 | ||
857 | #endif /* HAVE_X_WINDOWS */ | |
858 | ||
859 | ||
860 | \f | |
861 | /*********************************************************************** | |
862 | X Pixmaps | |
863 | ***********************************************************************/ | |
864 | ||
865 | #ifdef HAVE_X_WINDOWS | |
866 | ||
867 | DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, | |
868 | "Non-nil if OBJECT is a valid pixmap specification.\n\ | |
869 | A pixmap specification is either a string, or a list (WIDTH HEIGHT DATA)\n\ | |
870 | where WIDTH is the pixel width of the pixmap, HEIGHT is its height,\n\ | |
871 | and DATA contains the bits of the pixmap.") | |
872 | (object) | |
873 | Lisp_Object object; | |
874 | { | |
875 | Lisp_Object height, width; | |
cd0bb842 | 876 | |
ed791d5b EN |
877 | return ((STRINGP (object) |
878 | || (CONSP (object) | |
879 | && CONSP (XCONS (object)->cdr) | |
880 | && CONSP (XCONS (XCONS (object)->cdr)->cdr) | |
881 | && NILP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->cdr) | |
882 | && (width = XCONS (object)->car, INTEGERP (width)) | |
82641697 GM |
883 | && (height = XCONS (XCONS (object)->cdr)->car, |
884 | INTEGERP (height)) | |
ed791d5b | 885 | && STRINGP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car) |
cd0bb842 RS |
886 | && XINT (width) > 0 |
887 | && XINT (height) > 0 | |
888 | /* The string must have enough bits for width * height. */ | |
ed791d5b | 889 | && ((XSTRING (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car)->size |
68be917d | 890 | * (BITS_PER_INT / sizeof (int))) |
e1befa75 | 891 | >= XFASTINT (width) * XFASTINT (height)))) |
cd0bb842 RS |
892 | ? Qt : Qnil); |
893 | } | |
894 | ||
cd0bb842 | 895 | |
82641697 GM |
896 | /* Load a bitmap according to NAME (which is either a file name or a |
897 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
898 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
899 | bitmap cannot be loaded, display a message saying so, and return | |
900 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
901 | if these pointers are not null. */ | |
cd0bb842 | 902 | |
82641697 | 903 | static int |
cd0bb842 | 904 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 905 | FRAME_PTR f; |
cd0bb842 RS |
906 | Lisp_Object name; |
907 | unsigned int *w_ptr, *h_ptr; | |
908 | { | |
909 | int bitmap_id; | |
910 | Lisp_Object tem; | |
911 | ||
912 | if (NILP (name)) | |
82641697 | 913 | return 0; |
cd0bb842 RS |
914 | |
915 | tem = Fpixmap_spec_p (name); | |
916 | if (NILP (tem)) | |
917 | wrong_type_argument (Qpixmap_spec_p, name); | |
918 | ||
919 | BLOCK_INPUT; | |
cd0bb842 RS |
920 | if (CONSP (name)) |
921 | { | |
922 | /* Decode a bitmap spec into a bitmap. */ | |
923 | ||
924 | int h, w; | |
925 | Lisp_Object bits; | |
926 | ||
927 | w = XINT (Fcar (name)); | |
928 | h = XINT (Fcar (Fcdr (name))); | |
929 | bits = Fcar (Fcdr (Fcdr (name))); | |
930 | ||
931 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
932 | w, h); | |
933 | } | |
934 | else | |
935 | { | |
936 | /* It must be a string -- a file name. */ | |
937 | bitmap_id = x_create_bitmap_from_file (f, name); | |
938 | } | |
939 | UNBLOCK_INPUT; | |
940 | ||
7812a96f | 941 | if (bitmap_id < 0) |
82641697 | 942 | { |
7dbdfcf8 | 943 | add_to_log (f, "Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 944 | bitmap_id = 0; |
cd0bb842 | 945 | |
82641697 GM |
946 | if (w_ptr) |
947 | *w_ptr = 0; | |
948 | if (h_ptr) | |
949 | *h_ptr = 0; | |
950 | } | |
951 | else | |
952 | { | |
953 | #if GLYPH_DEBUG | |
954 | ++npixmaps_allocated; | |
955 | #endif | |
956 | if (w_ptr) | |
957 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
958 | ||
959 | if (h_ptr) | |
960 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
961 | } | |
cd0bb842 RS |
962 | |
963 | return bitmap_id; | |
cb637678 | 964 | } |
87485d6f | 965 | |
82641697 GM |
966 | #endif /* HAVE_X_WINDOWS */ |
967 | ||
87485d6f | 968 | |
82641697 GM |
969 | \f |
970 | /*********************************************************************** | |
971 | Minimum font bounds | |
972 | ***********************************************************************/ | |
973 | ||
974 | #ifdef HAVE_X_WINDOWS | |
975 | ||
d6fc0a22 GM |
976 | /* Update the line_height of frame F. Return non-zero if line height |
977 | changes. */ | |
87485d6f | 978 | |
82641697 GM |
979 | int |
980 | frame_update_line_height (f) | |
87485d6f | 981 | struct frame *f; |
87485d6f | 982 | { |
d6fc0a22 GM |
983 | int fontset, line_height, changed_p; |
984 | ||
985 | fontset = f->output_data.x->fontset; | |
986 | if (fontset > 0) | |
987 | line_height = FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height; | |
988 | else | |
989 | line_height = FONT_HEIGHT (f->output_data.x->font); | |
990 | ||
991 | changed_p = line_height != f->output_data.x->line_height; | |
992 | f->output_data.x->line_height = line_height; | |
82641697 | 993 | return changed_p; |
87485d6f MW |
994 | } |
995 | ||
82641697 GM |
996 | #endif /* HAVE_X_WINDOWS */ |
997 | ||
998 | \f | |
999 | /*********************************************************************** | |
1000 | Fonts | |
1001 | ***********************************************************************/ | |
1002 | ||
1003 | #ifdef HAVE_X_WINDOWS | |
1004 | ||
1005 | /* Load font or fontset of face FACE which is used on frame F. | |
1006 | FONTSET is the fontset FACE should use or -1, if FACE doesn't use a | |
1007 | fontset. FONT_NAME is the name of the font to load, if no fontset | |
1008 | is used. It is null if no suitable font name could be determined | |
1009 | for the face. */ | |
1010 | ||
1011 | static void | |
1012 | load_face_font_or_fontset (f, face, font_name, fontset) | |
1013 | struct frame *f; | |
1014 | struct face *face; | |
1015 | char *font_name; | |
1016 | int fontset; | |
87485d6f | 1017 | { |
82641697 GM |
1018 | struct font_info *font_info = NULL; |
1019 | ||
1020 | face->font_info_id = -1; | |
1021 | face->fontset = fontset; | |
1022 | face->font = NULL; | |
1023 | ||
1024 | BLOCK_INPUT; | |
1025 | if (fontset >= 0) | |
1026 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
1027 | NULL, fontset); | |
1028 | else if (font_name) | |
1029 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), face->charset, | |
1030 | font_name, -1); | |
1031 | UNBLOCK_INPUT; | |
1032 | ||
1033 | if (font_info) | |
1034 | { | |
1035 | char *s; | |
1036 | int i; | |
1037 | ||
1038 | face->font_info_id = FONT_INFO_ID (f, font_info); | |
1039 | face->font = font_info->font; | |
1040 | face->font_name = font_info->full_name; | |
1041 | ||
1042 | /* Make the registry part of the font name readily accessible. | |
1043 | The registry is used to find suitable faces for unibyte text. */ | |
1044 | s = font_info->full_name + strlen (font_info->full_name); | |
1045 | i = 0; | |
1046 | while (i < 2 && --s >= font_info->full_name) | |
1047 | if (*s == '-') | |
1048 | ++i; | |
1049 | ||
1050 | if (!STRINGP (face->registry) | |
1051 | || xstricmp (XSTRING (face->registry)->data, s + 1) != 0) | |
1052 | { | |
1053 | if (STRINGP (Vface_default_registry) | |
1054 | && !xstricmp (XSTRING (Vface_default_registry)->data, s + 1)) | |
1055 | face->registry = Vface_default_registry; | |
1056 | else | |
1057 | face->registry = build_string (s + 1); | |
1058 | } | |
1059 | } | |
1060 | else if (fontset >= 0) | |
7dbdfcf8 GM |
1061 | add_to_log (f, "Unable to load ASCII font of fontset %d", |
1062 | make_number (fontset), Qnil); | |
82641697 | 1063 | else if (font_name) |
7dbdfcf8 GM |
1064 | add_to_log (f, "Unable to load font %s", |
1065 | build_string (font_name), Qnil); | |
87485d6f MW |
1066 | } |
1067 | ||
82641697 | 1068 | #endif /* HAVE_X_WINDOWS */ |
87485d6f | 1069 | |
87485d6f | 1070 | |
82641697 GM |
1071 | \f |
1072 | /*********************************************************************** | |
1073 | X Colors | |
1074 | ***********************************************************************/ | |
1075 | ||
1076 | #ifdef HAVE_X_WINDOWS | |
1077 | ||
1078 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or | |
1079 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1080 | ||
1081 | static int | |
1082 | face_color_gray_p (f, color_name) | |
1083 | struct frame *f; | |
1084 | char *color_name; | |
1085 | { | |
1086 | XColor color; | |
1087 | int gray_p; | |
1088 | ||
1089 | if (defined_color (f, color_name, &color, 0)) | |
1090 | gray_p = ((abs (color.red - color.green) | |
1091 | < max (color.red, color.green) / 20) | |
1092 | && (abs (color.green - color.blue) | |
1093 | < max (color.green, color.blue) / 20) | |
1094 | && (abs (color.blue - color.red) | |
1095 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1096 | else |
82641697 GM |
1097 | gray_p = 0; |
1098 | ||
1099 | return gray_p; | |
87485d6f | 1100 | } |
87485d6f | 1101 | |
cb637678 | 1102 | |
82641697 GM |
1103 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1104 | BACKGROUND_P non-zero means the color will be used as background | |
1105 | color. */ | |
1106 | ||
1107 | static int | |
1108 | face_color_supported_p (f, color_name, background_p) | |
1109 | struct frame *f; | |
1110 | char *color_name; | |
1111 | int background_p; | |
1112 | { | |
1113 | Lisp_Object frame; | |
1114 | ||
1115 | XSETFRAME (frame, f); | |
1116 | return (!NILP (Vwindow_system) | |
1117 | && (!NILP (Fx_display_color_p (frame)) | |
1118 | || xstricmp (color_name, "black") == 0 | |
1119 | || xstricmp (color_name, "white") == 0 | |
1120 | || (background_p | |
1121 | && face_color_gray_p (f, color_name)) | |
1122 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1123 | && face_color_gray_p (f, color_name)))); | |
1124 | } | |
1125 | ||
1126 | ||
1127 | DEFUN ("face-color-gray-p", Fface_color_gray_p, Sface_color_gray_p, 1, 2, 0, | |
1128 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ | |
1129 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1130 | If FRAME is nil or omitted, use the selected frame.") | |
1131 | (color, frame) | |
1132 | Lisp_Object color, frame; | |
cb637678 | 1133 | { |
82641697 GM |
1134 | struct frame *f = check_x_frame (frame); |
1135 | CHECK_STRING (color, 0); | |
1136 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; | |
1137 | } | |
660ed669 | 1138 | |
fffc2367 | 1139 | |
82641697 GM |
1140 | DEFUN ("face-color-supported-p", Fface_color_supported_p, |
1141 | Sface_color_supported_p, 2, 3, 0, | |
1142 | "Return non-nil if COLOR can be displayed on FRAME.\n\ | |
1143 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1144 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1145 | COLOR must be a valid color name.") | |
1146 | (frame, color, background_p) | |
1147 | Lisp_Object frame, color, background_p; | |
1148 | { | |
1149 | struct frame *f = check_x_frame (frame); | |
1150 | CHECK_STRING (color, 0); | |
1151 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) | |
1152 | return Qt; | |
1153 | return Qnil; | |
1154 | } | |
7b37f67b | 1155 | |
82641697 GM |
1156 | /* Load color with name NAME for use by face FACE on frame F. |
1157 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1158 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1159 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1160 | pixel color. If color cannot be loaded, display a message, and | |
1161 | return the foreground, background or underline color of F, but | |
1162 | record that fact in flags of the face so that we don't try to free | |
1163 | these colors. */ | |
1164 | ||
44747bd0 | 1165 | unsigned long |
82641697 GM |
1166 | load_color (f, face, name, target_index) |
1167 | struct frame *f; | |
1168 | struct face *face; | |
1169 | Lisp_Object name; | |
1170 | enum lface_attribute_index target_index; | |
1171 | { | |
1172 | XColor color; | |
1173 | ||
1174 | xassert (STRINGP (name)); | |
1175 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1176 | || target_index == LFACE_BACKGROUND_INDEX | |
1177 | || target_index == LFACE_UNDERLINE_INDEX | |
1178 | || target_index == LFACE_OVERLINE_INDEX | |
1179 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1180 | || target_index == LFACE_BOX_INDEX); | |
1181 | ||
1182 | /* if the color map is full, defined_color will return a best match | |
1183 | to the values in an existing cell. */ | |
1184 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1185 | { | |
7dbdfcf8 | 1186 | add_to_log (f, "Unable to load color %s", name, Qnil); |
82641697 GM |
1187 | |
1188 | switch (target_index) | |
1120eb5e | 1189 | { |
82641697 GM |
1190 | case LFACE_FOREGROUND_INDEX: |
1191 | face->foreground_defaulted_p = 1; | |
1192 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1193 | break; | |
1194 | ||
1195 | case LFACE_BACKGROUND_INDEX: | |
1196 | face->background_defaulted_p = 1; | |
1197 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1198 | break; | |
1199 | ||
1200 | case LFACE_UNDERLINE_INDEX: | |
1201 | face->underline_defaulted_p = 1; | |
1202 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1203 | break; | |
1204 | ||
1205 | case LFACE_OVERLINE_INDEX: | |
1206 | face->overline_color_defaulted_p = 1; | |
1207 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1208 | break; |
82641697 GM |
1209 | |
1210 | case LFACE_STRIKE_THROUGH_INDEX: | |
1211 | face->strike_through_color_defaulted_p = 1; | |
1212 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1213 | break; | |
1214 | ||
1215 | case LFACE_BOX_INDEX: | |
1216 | face->box_color_defaulted_p = 1; | |
1217 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1218 | break; | |
1219 | ||
1220 | default: | |
1221 | abort (); | |
1120eb5e | 1222 | } |
82641697 GM |
1223 | } |
1224 | #if GLYPH_DEBUG | |
1225 | else | |
1226 | ++ncolors_allocated; | |
1227 | #endif | |
1228 | ||
1229 | return color.pixel; | |
1230 | } | |
1120eb5e | 1231 | |
1120eb5e | 1232 | |
82641697 GM |
1233 | /* Load colors for face FACE which is used on frame F. Colors are |
1234 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1235 | of ATTRS. If the background color specified is not supported on F, | |
1236 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1237 | ||
1238 | static void | |
1239 | load_face_colors (f, face, attrs) | |
1240 | struct frame *f; | |
1241 | struct face *face; | |
1242 | Lisp_Object *attrs; | |
1243 | { | |
1244 | Lisp_Object fg, bg; | |
1245 | ||
1246 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1247 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1248 | ||
1249 | /* Swap colors if face is inverse-video. */ | |
1250 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1251 | { | |
1252 | Lisp_Object tmp; | |
1253 | tmp = fg; | |
1254 | fg = bg; | |
1255 | bg = tmp; | |
1256 | } | |
1257 | ||
1258 | /* Check for support for foreground, not for background because | |
1259 | face_color_supported_p is smart enough to know that grays are | |
1260 | "supported" as background because we are supposed to use stipple | |
1261 | for them. */ | |
1262 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
1263 | && !NILP (Fpixmap_spec_p (Vface_default_stipple))) | |
1264 | { | |
1265 | x_destroy_bitmap (f, face->stipple); | |
1266 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1267 | &face->pixmap_w, &face->pixmap_h); | |
1268 | } | |
82641697 | 1269 | |
be8a72f4 | 1270 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1271 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1272 | } |
1273 | ||
660ed669 | 1274 | |
82641697 | 1275 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1276 | |
cb637678 | 1277 | void |
82641697 | 1278 | unload_color (f, pixel) |
cb637678 | 1279 | struct frame *f; |
82641697 | 1280 | unsigned long pixel; |
cb637678 | 1281 | { |
42120bc7 | 1282 | Display *dpy = FRAME_X_DISPLAY (f); |
82641697 GM |
1283 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
1284 | ||
1285 | if (pixel == BLACK_PIX_DEFAULT (f) | |
1286 | || pixel == WHITE_PIX_DEFAULT (f)) | |
1287 | return; | |
cb637678 | 1288 | |
660ed669 | 1289 | BLOCK_INPUT; |
82641697 GM |
1290 | |
1291 | /* If display has an immutable color map, freeing colors is not | |
1292 | necessary and some servers don't allow it. So don't do it. */ | |
1293 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
1294 | { | |
1295 | Colormap cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1296 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
1297 | } | |
1298 | ||
1299 | UNBLOCK_INPUT; | |
1300 | } | |
1301 | ||
1302 | ||
1303 | /* Free colors allocated for FACE. */ | |
1304 | ||
1305 | static void | |
1306 | free_face_colors (f, face) | |
1307 | struct frame *f; | |
1308 | struct face *face; | |
1309 | { | |
1310 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
1311 | ||
1312 | /* If display has an immutable color map, freeing colors is not | |
1313 | necessary and some servers don't allow it. So don't do it. */ | |
1314 | if (class != StaticColor | |
1315 | && class != StaticGray | |
1316 | && class != TrueColor) | |
1317 | { | |
1318 | Display *dpy; | |
1319 | Colormap cmap; | |
1320 | ||
1321 | BLOCK_INPUT; | |
1322 | dpy = FRAME_X_DISPLAY (f); | |
1323 | cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1324 | ||
1325 | if (face->foreground != BLACK_PIX_DEFAULT (f) | |
1326 | && face->foreground != WHITE_PIX_DEFAULT (f) | |
1327 | && !face->foreground_defaulted_p) | |
1328 | { | |
1329 | XFreeColors (dpy, cmap, &face->foreground, 1, 0); | |
1330 | IF_DEBUG (--ncolors_allocated); | |
1331 | } | |
1332 | ||
1333 | if (face->background != BLACK_PIX_DEFAULT (f) | |
1334 | && face->background != WHITE_PIX_DEFAULT (f) | |
1335 | && !face->background_defaulted_p) | |
1336 | { | |
1337 | XFreeColors (dpy, cmap, &face->background, 1, 0); | |
1338 | IF_DEBUG (--ncolors_allocated); | |
1339 | } | |
1340 | ||
1341 | if (face->underline_p | |
1342 | && !face->underline_defaulted_p | |
1343 | && face->underline_color != BLACK_PIX_DEFAULT (f) | |
1344 | && face->underline_color != WHITE_PIX_DEFAULT (f)) | |
1345 | { | |
1346 | XFreeColors (dpy, cmap, &face->underline_color, 1, 0); | |
1347 | IF_DEBUG (--ncolors_allocated); | |
1348 | } | |
1349 | ||
1350 | if (face->overline_p | |
1351 | && !face->overline_color_defaulted_p | |
1352 | && face->overline_color != BLACK_PIX_DEFAULT (f) | |
1353 | && face->overline_color != WHITE_PIX_DEFAULT (f)) | |
1354 | { | |
1355 | XFreeColors (dpy, cmap, &face->overline_color, 1, 0); | |
1356 | IF_DEBUG (--ncolors_allocated); | |
1357 | } | |
1358 | ||
1359 | if (face->strike_through_p | |
1360 | && !face->strike_through_color_defaulted_p | |
1361 | && face->strike_through_color != BLACK_PIX_DEFAULT (f) | |
1362 | && face->strike_through_color != WHITE_PIX_DEFAULT (f)) | |
1363 | { | |
1364 | XFreeColors (dpy, cmap, &face->strike_through_color, 1, 0); | |
1365 | IF_DEBUG (--ncolors_allocated); | |
1366 | } | |
1367 | ||
1368 | if (face->box != FACE_NO_BOX | |
1369 | && !face->box_color_defaulted_p | |
1370 | && face->box_color != BLACK_PIX_DEFAULT (f) | |
1371 | && face->box_color != WHITE_PIX_DEFAULT (f)) | |
1372 | { | |
1373 | XFreeColors (dpy, cmap, &face->box_color, 1, 0); | |
1374 | IF_DEBUG (--ncolors_allocated); | |
1375 | } | |
1376 | ||
1377 | UNBLOCK_INPUT; | |
1378 | } | |
1379 | } | |
1380 | ||
44747bd0 EZ |
1381 | #else /* ! HAVE_X_WINDOWS */ |
1382 | ||
1383 | #ifdef MSDOS | |
1384 | unsigned long | |
1385 | load_color (f, face, name, target_index) | |
1386 | struct frame *f; | |
1387 | struct face *face; | |
1388 | Lisp_Object name; | |
1389 | enum lface_attribute_index target_index; | |
1390 | { | |
1391 | Lisp_Object color; | |
1392 | int color_idx = FACE_TTY_DEFAULT_COLOR; | |
1393 | ||
1394 | if (NILP (name)) | |
1395 | return (unsigned long)FACE_TTY_DEFAULT_COLOR; | |
1396 | ||
1397 | CHECK_STRING (name, 0); | |
1398 | ||
1399 | color = Qnil; | |
1400 | if (XSTRING (name)->size && !NILP (Ffboundp (Qmsdos_color_translate))) | |
1401 | { | |
1402 | color = call1 (Qmsdos_color_translate, name); | |
1403 | ||
1404 | if (INTEGERP (color)) | |
1405 | return (unsigned long)XINT (color); | |
1406 | ||
7dbdfcf8 | 1407 | add_to_log (f, "Unable to load color %s", name, Qnil); |
44747bd0 EZ |
1408 | |
1409 | switch (target_index) | |
1410 | { | |
1411 | case LFACE_FOREGROUND_INDEX: | |
1412 | face->foreground_defaulted_p = 1; | |
1413 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1414 | break; | |
1415 | ||
1416 | case LFACE_BACKGROUND_INDEX: | |
1417 | face->background_defaulted_p = 1; | |
1418 | color_idx = FRAME_BACKGROUND_PIXEL (f); | |
1419 | break; | |
1420 | ||
1421 | case LFACE_UNDERLINE_INDEX: | |
1422 | face->underline_defaulted_p = 1; | |
1423 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1424 | break; | |
1425 | ||
1426 | case LFACE_OVERLINE_INDEX: | |
1427 | face->overline_color_defaulted_p = 1; | |
1428 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1429 | break; | |
1430 | ||
1431 | case LFACE_STRIKE_THROUGH_INDEX: | |
1432 | face->strike_through_color_defaulted_p = 1; | |
1433 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1434 | break; | |
1435 | ||
1436 | case LFACE_BOX_INDEX: | |
1437 | face->box_color_defaulted_p = 1; | |
1438 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1439 | break; | |
1440 | } | |
1441 | } | |
1442 | else | |
1443 | color_idx = msdos_stdcolor_idx (XSTRING (name)->data); | |
1444 | ||
1445 | return (unsigned long)color_idx; | |
1446 | } | |
1447 | #endif /* MSDOS */ | |
1448 | #endif /* ! HAVE_X_WINDOWS */ | |
82641697 GM |
1449 | |
1450 | ||
1451 | \f | |
1452 | /*********************************************************************** | |
1453 | XLFD Font Names | |
1454 | ***********************************************************************/ | |
1455 | ||
1456 | /* An enumerator for each field of an XLFD font name. */ | |
1457 | ||
1458 | enum xlfd_field | |
1459 | { | |
1460 | XLFD_FOUNDRY, | |
1461 | XLFD_FAMILY, | |
1462 | XLFD_WEIGHT, | |
1463 | XLFD_SLANT, | |
1464 | XLFD_SWIDTH, | |
1465 | XLFD_ADSTYLE, | |
1466 | XLFD_PIXEL_SIZE, | |
1467 | XLFD_POINT_SIZE, | |
1468 | XLFD_RESX, | |
1469 | XLFD_RESY, | |
1470 | XLFD_SPACING, | |
1471 | XLFD_AVGWIDTH, | |
1472 | XLFD_REGISTRY, | |
1473 | XLFD_ENCODING, | |
1474 | XLFD_LAST | |
1475 | }; | |
1476 | ||
1477 | /* An enumerator for each possible slant value of a font. Taken from | |
1478 | the XLFD specification. */ | |
1479 | ||
1480 | enum xlfd_slant | |
1481 | { | |
1482 | XLFD_SLANT_UNKNOWN, | |
1483 | XLFD_SLANT_ROMAN, | |
1484 | XLFD_SLANT_ITALIC, | |
1485 | XLFD_SLANT_OBLIQUE, | |
1486 | XLFD_SLANT_REVERSE_ITALIC, | |
1487 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1488 | XLFD_SLANT_OTHER | |
1489 | }; | |
1490 | ||
1491 | /* Relative font weight according to XLFD documentation. */ | |
1492 | ||
1493 | enum xlfd_weight | |
1494 | { | |
1495 | XLFD_WEIGHT_UNKNOWN, | |
1496 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1497 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1498 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1499 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1500 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1501 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1502 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1503 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1504 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1505 | }; | |
1506 | ||
1507 | /* Relative proportionate width. */ | |
1508 | ||
1509 | enum xlfd_swidth | |
1510 | { | |
1511 | XLFD_SWIDTH_UNKNOWN, | |
1512 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1513 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1514 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1515 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1516 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1517 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1518 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1519 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1520 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1521 | }; | |
1522 | ||
1523 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1524 | names to numeric and symbolic values. */ | |
1525 | ||
1526 | struct table_entry | |
1527 | { | |
1528 | char *name; | |
1529 | int numeric; | |
1530 | Lisp_Object *symbol; | |
1531 | }; | |
1532 | ||
1533 | /* Table of XLFD slant names and their numeric and symbolic | |
1534 | representations. This table must be sorted by slant names in | |
1535 | ascending order. */ | |
1536 | ||
1537 | static struct table_entry slant_table[] = | |
1538 | { | |
1539 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1540 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1541 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1542 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1543 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1544 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1545 | }; | |
1546 | ||
1547 | /* Table of XLFD weight names. This table must be sorted by weight | |
1548 | names in ascending order. */ | |
1549 | ||
1550 | static struct table_entry weight_table[] = | |
1551 | { | |
1552 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1553 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1554 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1555 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1556 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1557 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1558 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1559 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1560 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1561 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1562 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1563 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1564 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1565 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1566 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1567 | }; | |
1568 | ||
1569 | /* Table of XLFD width names. This table must be sorted by width | |
1570 | names in ascending order. */ | |
1571 | ||
1572 | static struct table_entry swidth_table[] = | |
1573 | { | |
1574 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1575 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1576 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1577 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1578 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1579 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1580 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1581 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1582 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1583 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1584 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1585 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1586 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1587 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1588 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1589 | }; | |
1590 | ||
1591 | /* Structure used to hold the result of splitting font names in XLFD | |
1592 | format into their fields. */ | |
1593 | ||
1594 | struct font_name | |
1595 | { | |
1596 | /* The original name which is modified destructively by | |
1597 | split_font_name. The pointer is kept here to be able to free it | |
1598 | if it was allocated from the heap. */ | |
1599 | char *name; | |
1600 | ||
1601 | /* Font name fields. Each vector element points into `name' above. | |
1602 | Fields are NUL-terminated. */ | |
1603 | char *fields[XLFD_LAST]; | |
1604 | ||
1605 | /* Numeric values for those fields that interest us. See | |
1606 | split_font_name for which these are. */ | |
1607 | int numeric[XLFD_LAST]; | |
1608 | }; | |
1609 | ||
1610 | /* The frame in effect when sorting font names. Set temporarily in | |
1611 | sort_fonts so that it is available in font comparison functions. */ | |
1612 | ||
1613 | static struct frame *font_frame; | |
1614 | ||
1615 | /* Order by which font selection chooses fonts. The default values | |
1616 | mean `first, find a best match for the font width, then for the | |
1617 | font height, then for weight, then for slant.' This variable can be | |
1618 | set via set-face-font-sort-order. */ | |
1619 | ||
1620 | static int font_sort_order[4]; | |
1621 | ||
1622 | ||
1623 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1624 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1625 | is a pointer to the matching table entry or null if no table entry | |
1626 | matches. */ | |
1627 | ||
1628 | static struct table_entry * | |
1629 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1630 | struct table_entry *table; | |
1631 | int dim; | |
1632 | struct font_name *font; | |
1633 | int field_index; | |
1634 | { | |
1635 | /* Function split_font_name converts fields to lower-case, so there | |
1636 | is no need to use xstrlwr or xstricmp here. */ | |
1637 | char *s = font->fields[field_index]; | |
1638 | int low, mid, high, cmp; | |
1639 | ||
1640 | low = 0; | |
1641 | high = dim - 1; | |
1642 | ||
1643 | while (low <= high) | |
1644 | { | |
1645 | mid = (low + high) / 2; | |
1646 | cmp = strcmp (table[mid].name, s); | |
1647 | ||
1648 | if (cmp < 0) | |
1649 | low = mid + 1; | |
1650 | else if (cmp > 0) | |
1651 | high = mid - 1; | |
1652 | else | |
1653 | return table + mid; | |
1654 | } | |
1655 | ||
1656 | return NULL; | |
1657 | } | |
1658 | ||
1659 | ||
1660 | /* Return a numeric representation for font name field | |
1661 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1662 | has DIM entries. Value is the numeric value found or DFLT if no | |
1663 | table entry matches. This function is used to translate weight, | |
1664 | slant, and swidth names of XLFD font names to numeric values. */ | |
1665 | ||
1666 | static INLINE int | |
1667 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1668 | struct table_entry *table; | |
1669 | int dim; | |
1670 | struct font_name *font; | |
1671 | int field_index; | |
1672 | int dflt; | |
1673 | { | |
1674 | struct table_entry *p; | |
1675 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1676 | return p ? p->numeric : dflt; | |
1677 | } | |
1678 | ||
1679 | ||
1680 | /* Return a symbolic representation for font name field | |
1681 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1682 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1683 | table entry matches. This function is used to translate weight, | |
1684 | slant, and swidth names of XLFD font names to symbols. */ | |
1685 | ||
1686 | static INLINE Lisp_Object | |
1687 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1688 | struct table_entry *table; | |
1689 | int dim; | |
1690 | struct font_name *font; | |
1691 | int field_index; | |
1692 | int dflt; | |
1693 | { | |
1694 | struct table_entry *p; | |
1695 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1696 | return p ? *p->symbol : dflt; | |
1697 | } | |
1698 | ||
1699 | ||
1700 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1701 | ||
1702 | static INLINE int | |
1703 | xlfd_numeric_slant (font) | |
1704 | struct font_name *font; | |
1705 | { | |
1706 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1707 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1708 | } | |
1709 | ||
1710 | ||
1711 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1712 | ||
1713 | static INLINE Lisp_Object | |
1714 | xlfd_symbolic_slant (font) | |
1715 | struct font_name *font; | |
1716 | { | |
1717 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1718 | font, XLFD_SLANT, Qnormal); | |
1719 | } | |
1720 | ||
1721 | ||
1722 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1723 | ||
1724 | static INLINE int | |
1725 | xlfd_numeric_weight (font) | |
1726 | struct font_name *font; | |
1727 | { | |
1728 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1729 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1730 | } | |
1731 | ||
1732 | ||
1733 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1734 | ||
1735 | static INLINE Lisp_Object | |
1736 | xlfd_symbolic_weight (font) | |
1737 | struct font_name *font; | |
1738 | { | |
1739 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1740 | font, XLFD_WEIGHT, Qnormal); | |
1741 | } | |
1742 | ||
1743 | ||
1744 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1745 | name fields are found in FONT. */ | |
1746 | ||
1747 | static INLINE int | |
1748 | xlfd_numeric_swidth (font) | |
1749 | struct font_name *font; | |
1750 | { | |
1751 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1752 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1753 | } | |
1754 | ||
1755 | ||
1756 | /* Return a symbolic value for the swidth of FONT. */ | |
1757 | ||
1758 | static INLINE Lisp_Object | |
1759 | xlfd_symbolic_swidth (font) | |
1760 | struct font_name *font; | |
1761 | { | |
1762 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1763 | font, XLFD_SWIDTH, Qnormal); | |
1764 | } | |
1765 | ||
1766 | ||
1767 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1768 | entries. Value is a pointer to the matching table entry or null if | |
1769 | no element of TABLE contains SYMBOL. */ | |
1770 | ||
1771 | static struct table_entry * | |
1772 | face_value (table, dim, symbol) | |
1773 | struct table_entry *table; | |
1774 | int dim; | |
1775 | Lisp_Object symbol; | |
1776 | { | |
1777 | int i; | |
1778 | ||
1779 | xassert (SYMBOLP (symbol)); | |
1780 | ||
1781 | for (i = 0; i < dim; ++i) | |
1782 | if (EQ (*table[i].symbol, symbol)) | |
1783 | break; | |
1784 | ||
1785 | return i < dim ? table + i : NULL; | |
1786 | } | |
1787 | ||
1788 | ||
1789 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1790 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1791 | ||
1792 | static INLINE int | |
1793 | face_numeric_value (table, dim, symbol) | |
1794 | struct table_entry *table; | |
1795 | int dim; | |
1796 | Lisp_Object symbol; | |
1797 | { | |
1798 | struct table_entry *p = face_value (table, dim, symbol); | |
1799 | return p ? p->numeric : -1; | |
1800 | } | |
1801 | ||
1802 | ||
1803 | /* Return a numeric value representing the weight specified by Lisp | |
1804 | symbol WEIGHT. Value is one of the enumerators of enum | |
1805 | xlfd_weight. */ | |
1806 | ||
1807 | static INLINE int | |
1808 | face_numeric_weight (weight) | |
1809 | Lisp_Object weight; | |
1810 | { | |
1811 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1812 | } | |
1813 | ||
1814 | ||
1815 | /* Return a numeric value representing the slant specified by Lisp | |
1816 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
1817 | ||
1818 | static INLINE int | |
1819 | face_numeric_slant (slant) | |
1820 | Lisp_Object slant; | |
1821 | { | |
1822 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
1823 | } | |
1824 | ||
1825 | ||
1826 | /* Return a numeric value representing the swidth specified by Lisp | |
1827 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
1828 | ||
1829 | static int | |
1830 | face_numeric_swidth (width) | |
1831 | Lisp_Object width; | |
1832 | { | |
1833 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
1834 | } | |
1835 | ||
1836 | ||
1837 | #ifdef HAVE_X_WINDOWS | |
1838 | ||
1839 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
1840 | ||
1841 | static INLINE int | |
1842 | xlfd_fixed_p (font) | |
1843 | struct font_name *font; | |
1844 | { | |
1845 | /* Function split_font_name converts fields to lower-case, so there | |
1846 | is no need to use tolower here. */ | |
1847 | return *font->fields[XLFD_SPACING] != 'p'; | |
1848 | } | |
1849 | ||
1850 | ||
1851 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
1852 | ||
1853 | The actual height of the font when displayed on F depends on the | |
1854 | resolution of both the font and frame. For example, a 10pt font | |
1855 | designed for a 100dpi display will display larger than 10pt on a | |
1856 | 75dpi display. (It's not unusual to use fonts not designed for the | |
1857 | display one is using. For example, some intlfonts are available in | |
1858 | 72dpi versions, only.) | |
1859 | ||
1860 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
1861 | be determined. */ | |
1862 | ||
1863 | static INLINE int | |
1864 | xlfd_point_size (f, font) | |
1865 | struct frame *f; | |
1866 | struct font_name *font; | |
1867 | { | |
1868 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
1869 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
1870 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
1871 | int real_pt; | |
1872 | ||
1873 | if (font_resy == 0 || font_pt == 0) | |
1874 | real_pt = 0; | |
1875 | else | |
1876 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
1877 | ||
1878 | return real_pt; | |
1879 | } | |
1880 | ||
1881 | ||
1882 | /* Split XLFD font name FONT->name destructively into NUL-terminated, | |
1883 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
1884 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
1885 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
1886 | zero if the font name doesn't have the format we expect. The | |
1887 | expected format is a font name that starts with a `-' and has | |
1888 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
1889 | forms of font names where certain field contents are enclosed in | |
1890 | square brackets. We don't support that, for now. */ | |
1891 | ||
1892 | static int | |
1893 | split_font_name (f, font, numeric_p) | |
1894 | struct frame *f; | |
1895 | struct font_name *font; | |
1896 | int numeric_p; | |
1897 | { | |
1898 | int i = 0; | |
1899 | int success_p; | |
1900 | ||
1901 | if (*font->name == '-') | |
1902 | { | |
1903 | char *p = xstrlwr (font->name) + 1; | |
1904 | ||
1905 | while (i < XLFD_LAST) | |
1906 | { | |
1907 | font->fields[i] = p; | |
1908 | ++i; | |
1909 | ||
1910 | while (*p && *p != '-') | |
1911 | ++p; | |
1912 | ||
1913 | if (*p != '-') | |
1914 | break; | |
1915 | ||
1916 | *p++ = 0; | |
1917 | } | |
1918 | } | |
1919 | ||
1920 | success_p = i == XLFD_LAST; | |
1921 | ||
1922 | /* If requested, and font name was in the expected format, | |
1923 | compute numeric values for some fields. */ | |
1924 | if (numeric_p && success_p) | |
1925 | { | |
1926 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
1927 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
1928 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
1929 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
1930 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
1931 | } | |
1932 | ||
1933 | return success_p; | |
1934 | } | |
1935 | ||
1936 | ||
1937 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
1938 | pointer to the font name, which is allocated via xmalloc. */ | |
1939 | ||
1940 | static char * | |
1941 | build_font_name (font) | |
1942 | struct font_name *font; | |
1943 | { | |
1944 | int i; | |
1945 | int size = 100; | |
1946 | char *font_name = (char *) xmalloc (size); | |
1947 | int total_length = 0; | |
1948 | ||
1949 | for (i = 0; i < XLFD_LAST; ++i) | |
1950 | { | |
1951 | /* Add 1 because of the leading `-'. */ | |
1952 | int len = strlen (font->fields[i]) + 1; | |
1953 | ||
1954 | /* Reallocate font_name if necessary. Add 1 for the final | |
1955 | NUL-byte. */ | |
1956 | if (total_length + len + 1 >= size) | |
1957 | { | |
1958 | int new_size = max (2 * size, size + len + 1); | |
1959 | int sz = new_size * sizeof *font_name; | |
1960 | font_name = (char *) xrealloc (font_name, sz); | |
1961 | size = new_size; | |
1962 | } | |
1963 | ||
1964 | font_name[total_length] = '-'; | |
1965 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
1966 | total_length += len; | |
1967 | } | |
1968 | ||
1969 | font_name[total_length] = 0; | |
1970 | return font_name; | |
1971 | } | |
1972 | ||
1973 | ||
1974 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
1975 | itself and all `name' fields in its elements. */ | |
1976 | ||
1977 | static INLINE void | |
1978 | free_font_names (fonts, n) | |
1979 | struct font_name *fonts; | |
1980 | int n; | |
1981 | { | |
1982 | while (n) | |
1983 | xfree (fonts[--n].name); | |
1984 | xfree (fonts); | |
1985 | } | |
1986 | ||
1987 | ||
1988 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
1989 | elements using qsort and comparison function CMPFN. F is the frame | |
1990 | on which the fonts will be used. The global variable font_frame | |
1991 | is temporarily set to F to make it available in CMPFN. */ | |
1992 | ||
1993 | static INLINE void | |
1994 | sort_fonts (f, fonts, nfonts, cmpfn) | |
1995 | struct frame *f; | |
1996 | struct font_name *fonts; | |
1997 | int nfonts; | |
1998 | int (*cmpfn) P_ ((const void *, const void *)); | |
1999 | { | |
2000 | font_frame = f; | |
2001 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2002 | font_frame = NULL; | |
2003 | } | |
2004 | ||
2005 | ||
2006 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2007 | display in x_display_list. FONTS is a pointer to a vector of | |
2008 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2009 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2010 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2011 | scalable fonts. | |
2012 | ||
2013 | For all fonts found, set FONTS[i].name to the name of the font, | |
2014 | allocated via xmalloc, and split font names into fields. Ignore | |
2015 | fonts that we can't parse. Value is the number of fonts found. | |
2016 | ||
2017 | This is similar to x_list_fonts. The differences are: | |
2018 | ||
2019 | 1. It avoids consing. | |
2020 | 2. It never calls XLoadQueryFont. */ | |
2021 | ||
2022 | static int | |
2023 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2024 | scalable_fonts_p) | |
2025 | struct frame *f; | |
2026 | char *pattern; | |
2027 | struct font_name *fonts; | |
2028 | int nfonts, try_alternatives_p; | |
2029 | int scalable_fonts_p; | |
2030 | { | |
2031 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
2032 | int n, i, j; | |
2033 | char **names; | |
2034 | ||
2035 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2036 | BLOCK_INPUT; | |
2037 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2038 | UNBLOCK_INPUT; | |
2039 | ||
2040 | if (names) | |
2041 | { | |
2042 | /* Make a copy of the font names we got from X, and | |
2043 | split them into fields. */ | |
2044 | for (i = j = 0; i < n; ++i) | |
2045 | { | |
2046 | /* Make a copy of the font name. */ | |
2047 | fonts[j].name = xstrdup (names[i]); | |
2048 | ||
2049 | /* Ignore fonts having a name that we can't parse. */ | |
2050 | if (!split_font_name (f, fonts + j, 1)) | |
2051 | xfree (fonts[j].name); | |
2052 | else if (font_scalable_p (fonts + j)) | |
2053 | { | |
2054 | #if SCALABLE_FONTS | |
2055 | if (!scalable_fonts_p | |
2056 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2057 | xfree (fonts[j].name); | |
2058 | else | |
2059 | ++j; | |
2060 | #else /* !SCALABLE_FONTS */ | |
2061 | /* Always ignore scalable fonts. */ | |
2062 | xfree (fonts[j].name); | |
2063 | #endif /* !SCALABLE_FONTS */ | |
2064 | } | |
2065 | else | |
2066 | ++j; | |
2067 | } | |
2068 | ||
2069 | n = j; | |
2070 | ||
2071 | /* Free font names. */ | |
2072 | BLOCK_INPUT; | |
2073 | XFreeFontNames (names); | |
2074 | UNBLOCK_INPUT; | |
2075 | } | |
2076 | ||
2077 | ||
2078 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2079 | if (n == 0 && try_alternatives_p) | |
2080 | { | |
2081 | Lisp_Object list = Valternate_fontname_alist; | |
2082 | ||
2083 | while (CONSP (list)) | |
2084 | { | |
2085 | Lisp_Object entry = XCAR (list); | |
2086 | if (CONSP (entry) | |
2087 | && STRINGP (XCAR (entry)) | |
2088 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2089 | break; | |
2090 | list = XCDR (list); | |
2091 | } | |
2092 | ||
2093 | if (CONSP (list)) | |
2094 | { | |
2095 | Lisp_Object patterns = XCAR (list); | |
2096 | Lisp_Object name; | |
2097 | ||
2098 | while (CONSP (patterns) | |
2099 | /* If list is screwed up, give up. */ | |
2100 | && (name = XCAR (patterns), | |
2101 | STRINGP (name)) | |
2102 | /* Ignore patterns equal to PATTERN because we tried that | |
2103 | already with no success. */ | |
2104 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2105 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2106 | fonts, nfonts, 0, | |
2107 | scalable_fonts_p), | |
2108 | n == 0))) | |
2109 | patterns = XCDR (patterns); | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | return n; | |
2114 | } | |
2115 | ||
2116 | ||
2117 | /* Determine the first font matching PATTERN on frame F. Return in | |
2118 | *FONT the matching font name, split into fields. Value is non-zero | |
2119 | if a match was found. */ | |
2120 | ||
2121 | static int | |
2122 | first_font_matching (f, pattern, font) | |
2123 | struct frame *f; | |
2124 | char *pattern; | |
2125 | struct font_name *font; | |
2126 | { | |
2127 | int nfonts = 100; | |
2128 | struct font_name *fonts; | |
2129 | ||
2130 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2131 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2132 | ||
2133 | if (nfonts > 0) | |
2134 | { | |
2135 | bcopy (&fonts[0], font, sizeof *font); | |
2136 | ||
2137 | fonts[0].name = NULL; | |
2138 | free_font_names (fonts, nfonts); | |
2139 | } | |
2140 | ||
2141 | return nfonts > 0; | |
2142 | } | |
2143 | ||
2144 | ||
2145 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2146 | using comparison function CMPFN. Value is the number of fonts | |
2147 | found. If value is non-zero, *FONTS is set to a vector of | |
2148 | font_name structures allocated from the heap containing matching | |
2149 | fonts. Each element of *FONTS contains a name member that is also | |
2150 | allocated from the heap. Font names in these structures are split | |
2151 | into fields. Use free_font_names to free such an array. */ | |
2152 | ||
2153 | static int | |
2154 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2155 | struct frame *f; | |
2156 | char *pattern; | |
2157 | int (*cmpfn) P_ ((const void *, const void *)); | |
2158 | struct font_name **fonts; | |
2159 | { | |
2160 | int nfonts; | |
2161 | ||
2162 | /* Get the list of fonts matching pattern. 100 should suffice. */ | |
057df17c GM |
2163 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2164 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2165 | nfonts = XFASTINT (Vfont_list_limit); | |
2166 | ||
82641697 GM |
2167 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2168 | #if SCALABLE_FONTS | |
2169 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2170 | #else | |
2171 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2172 | #endif | |
2173 | ||
2174 | /* Sort the resulting array and return it in *FONTS. If no | |
2175 | fonts were found, make sure to set *FONTS to null. */ | |
2176 | if (nfonts) | |
2177 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2178 | else | |
2179 | { | |
2180 | xfree (*fonts); | |
2181 | *fonts = NULL; | |
2182 | } | |
2183 | ||
2184 | return nfonts; | |
2185 | } | |
2186 | ||
2187 | ||
2188 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2189 | strcmp. Sort order is given by the global variable | |
2190 | font_sort_order. Font names are sorted so that, everything else | |
2191 | being equal, fonts with a resolution closer to that of the frame on | |
2192 | which they are used are listed first. The global variable | |
2193 | font_frame is the frame on which we operate. */ | |
2194 | ||
2195 | static int | |
2196 | cmp_font_names (a, b) | |
2197 | const void *a, *b; | |
2198 | { | |
2199 | struct font_name *x = (struct font_name *) a; | |
2200 | struct font_name *y = (struct font_name *) b; | |
2201 | int cmp; | |
2202 | ||
2203 | /* All strings have been converted to lower-case by split_font_name, | |
2204 | so we can use strcmp here. */ | |
2205 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2206 | if (cmp == 0) | |
2207 | { | |
2208 | int i; | |
2209 | ||
2210 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) | |
2211 | { | |
2212 | int j = font_sort_order[i]; | |
2213 | cmp = x->numeric[j] - y->numeric[j]; | |
2214 | } | |
2215 | ||
2216 | if (cmp == 0) | |
2217 | { | |
2218 | /* Everything else being equal, we prefer fonts with an | |
2219 | y-resolution closer to that of the frame. */ | |
2220 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2221 | int x_resy = x->numeric[XLFD_RESY]; | |
2222 | int y_resy = y->numeric[XLFD_RESY]; | |
2223 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2224 | } | |
2225 | } | |
2226 | ||
2227 | return cmp; | |
2228 | } | |
2229 | ||
2230 | ||
2231 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
2232 | is non-null list fonts matching that pattern. Otherwise, if | |
2233 | REGISTRY_AND_ENCODING is non-null return only fonts with that | |
2234 | registry and encoding, otherwise return fonts of any registry and | |
2235 | encoding. Set *FONTS to a vector of font_name structures allocated | |
2236 | from the heap containing the fonts found. Value is the number of | |
2237 | fonts found. */ | |
2238 | ||
2239 | static int | |
2240 | font_list (f, pattern, family, registry_and_encoding, fonts) | |
2241 | struct frame *f; | |
2242 | char *pattern; | |
2243 | char *family; | |
2244 | char *registry_and_encoding; | |
2245 | struct font_name **fonts; | |
2246 | { | |
2247 | if (pattern == NULL) | |
2248 | { | |
2249 | if (family == NULL) | |
2250 | family = "*"; | |
2251 | ||
2252 | if (registry_and_encoding == NULL) | |
2253 | registry_and_encoding = "*"; | |
2254 | ||
2255 | pattern = (char *) alloca (strlen (family) | |
2256 | + strlen (registry_and_encoding) | |
2257 | + 10); | |
2258 | if (index (family, '-')) | |
2259 | sprintf (pattern, "-%s-*-%s", family, registry_and_encoding); | |
2260 | else | |
2261 | sprintf (pattern, "-*-%s-*-%s", family, registry_and_encoding); | |
2262 | } | |
2263 | ||
2264 | return sorted_font_list (f, pattern, cmp_font_names, fonts); | |
2265 | } | |
2266 | ||
2267 | ||
2268 | /* Remove elements from LIST whose cars are `equal'. Called from | |
2269 | x-font-list and x-font-family-list to remove duplicate font | |
2270 | entries. */ | |
2271 | ||
2272 | static void | |
2273 | remove_duplicates (list) | |
2274 | Lisp_Object list; | |
2275 | { | |
2276 | Lisp_Object tail = list; | |
2277 | ||
2278 | while (!NILP (tail) && !NILP (XCDR (tail))) | |
2279 | { | |
2280 | Lisp_Object next = XCDR (tail); | |
2281 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2282 | XCDR (tail) = XCDR (next); | |
2283 | else | |
2284 | tail = XCDR (tail); | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | ||
2289 | DEFUN ("x-font-list", Fxfont_list, Sx_font_list, 0, 2, 0, | |
2290 | "Return a list of available fonts of family FAMILY on FRAME.\n\ | |
2291 | If FAMILY is omitted or nil, list all families.\n\ | |
2292 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2293 | `?' and `*'.\n\ | |
2294 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2295 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2296 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2297 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2298 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2299 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2300 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2301 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2302 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2303 | The result list is sorted according to the current setting of\n\ |
2304 | the face font sort order.") | |
2305 | (family, frame) | |
2306 | Lisp_Object family, frame; | |
2307 | { | |
2308 | struct frame *f = check_x_frame (frame); | |
2309 | struct font_name *fonts; | |
2310 | int i, nfonts; | |
2311 | Lisp_Object result; | |
2312 | struct gcpro gcpro1; | |
2313 | char *family_pattern; | |
2314 | ||
2315 | if (NILP (family)) | |
2316 | family_pattern = "*"; | |
2317 | else | |
2318 | { | |
2319 | CHECK_STRING (family, 1); | |
2320 | family_pattern = LSTRDUPA (family); | |
2321 | } | |
2322 | ||
2323 | result = Qnil; | |
2324 | GCPRO1 (result); | |
2325 | nfonts = font_list (f, NULL, family_pattern, NULL, &fonts); | |
2326 | for (i = nfonts - 1; i >= 0; --i) | |
2327 | { | |
057df17c GM |
2328 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2329 | char *tem; | |
82641697 GM |
2330 | |
2331 | #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) | |
2332 | ||
2333 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); | |
2334 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2335 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2336 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2337 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2338 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2339 | tem = build_font_name (fonts + i); |
2340 | ASET (v, 6, build_string (tem)); | |
2341 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2342 | fonts[i].fields[XLFD_ENCODING]); | |
2343 | ASET (v, 7, build_string (tem)); | |
2344 | xfree (tem); | |
2345 | ||
82641697 GM |
2346 | result = Fcons (v, result); |
2347 | ||
2348 | #undef ASET | |
2349 | } | |
2350 | ||
2351 | remove_duplicates (result); | |
2352 | free_font_names (fonts, nfonts); | |
2353 | UNGCPRO; | |
2354 | return result; | |
2355 | } | |
2356 | ||
2357 | ||
2358 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2359 | 0, 1, 0, | |
2360 | "Return a list of available font families on FRAME.\n\ | |
2361 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2362 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2363 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2364 | are fixed-pitch.") | |
2365 | (frame) | |
2366 | Lisp_Object frame; | |
2367 | { | |
2368 | struct frame *f = check_x_frame (frame); | |
2369 | int nfonts, i; | |
2370 | struct font_name *fonts; | |
2371 | Lisp_Object result; | |
2372 | struct gcpro gcpro1; | |
057df17c GM |
2373 | int count = specpdl_ptr - specpdl; |
2374 | int limit; | |
2375 | ||
2376 | /* Let's consider all fonts. Increase the limit for matching | |
2377 | fonts until we have them all. */ | |
2378 | for (limit = 500;;) | |
2379 | { | |
2380 | specbind (intern ("font-list-limit"), make_number (limit)); | |
2381 | nfonts = font_list (f, NULL, "*", NULL, &fonts); | |
2382 | ||
2383 | if (nfonts == limit) | |
2384 | { | |
2385 | free_font_names (fonts, nfonts); | |
2386 | limit *= 2; | |
2387 | } | |
2388 | else | |
2389 | break; | |
2390 | } | |
82641697 | 2391 | |
82641697 GM |
2392 | result = Qnil; |
2393 | GCPRO1 (result); | |
2394 | for (i = nfonts - 1; i >= 0; --i) | |
2395 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2396 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2397 | result); | |
2398 | ||
2399 | remove_duplicates (result); | |
2400 | free_font_names (fonts, nfonts); | |
2401 | UNGCPRO; | |
057df17c | 2402 | return unbind_to (count, result); |
82641697 GM |
2403 | } |
2404 | ||
2405 | ||
2406 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2407 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2408 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2409 | the same size as FACE on FRAME.\n\ | |
2410 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2411 | the * character matches any substring, and\n\ | |
2412 | the ? character matches any single character.\n\ | |
2413 | PATTERN is case-insensitive.\n\ | |
2414 | FACE is a face name--a symbol.\n\ | |
2415 | \n\ | |
2416 | The return value is a list of strings, suitable as arguments to\n\ | |
2417 | set-face-font.\n\ | |
2418 | \n\ | |
2419 | Fonts Emacs can't use may or may not be excluded\n\ | |
2420 | even if they match PATTERN and FACE.\n\ | |
2421 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2422 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2423 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2424 | occupied by a character of a font. In that case, return only fonts\n\ | |
2425 | the WIDTH times as wide as FACE on FRAME.") | |
2426 | (pattern, face, frame, maximum, width) | |
2427 | Lisp_Object pattern, face, frame, maximum, width; | |
2428 | { | |
2429 | struct frame *f; | |
2430 | int size; | |
2431 | int maxnames; | |
2432 | ||
2433 | check_x (); | |
2434 | CHECK_STRING (pattern, 0); | |
2435 | ||
2436 | if (NILP (maximum)) | |
2437 | maxnames = 2000; | |
2438 | else | |
2439 | { | |
2440 | CHECK_NATNUM (maximum, 0); | |
2441 | maxnames = XINT (maximum); | |
2442 | } | |
2443 | ||
2444 | if (!NILP (width)) | |
2445 | CHECK_NUMBER (width, 4); | |
2446 | ||
2447 | /* We can't simply call check_x_frame because this function may be | |
2448 | called before any frame is created. */ | |
2449 | f = frame_or_selected_frame (frame, 2); | |
2450 | if (!FRAME_X_P (f)) | |
2451 | { | |
2452 | /* Perhaps we have not yet created any frame. */ | |
2453 | f = NULL; | |
2454 | face = Qnil; | |
2455 | } | |
2456 | ||
2457 | /* Determine the width standard for comparison with the fonts we find. */ | |
2458 | ||
2459 | if (NILP (face)) | |
2460 | size = 0; | |
2461 | else | |
2462 | { | |
2463 | /* This is of limited utility since it works with character | |
2464 | widths. Keep it for compatibility. --gerd. */ | |
2465 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
2466 | struct face *face = FACE_FROM_ID (f, face_id); | |
2467 | ||
2468 | if (face->font) | |
2469 | size = face->font->max_bounds.width; | |
2470 | else | |
2471 | size = FRAME_FONT (f)->max_bounds.width; | |
2472 | ||
2473 | if (!NILP (width)) | |
2474 | size *= XINT (width); | |
2475 | } | |
2476 | ||
2477 | { | |
2478 | Lisp_Object args[2]; | |
2479 | ||
2480 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2481 | if (f == NULL) | |
2482 | /* We don't have to check fontsets. */ | |
2483 | return args[0]; | |
2484 | args[1] = list_fontsets (f, pattern, size); | |
2485 | return Fnconc (2, args); | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | #endif /* HAVE_X_WINDOWS */ | |
2490 | ||
2491 | ||
2492 | \f | |
2493 | /*********************************************************************** | |
2494 | Lisp Faces | |
2495 | ***********************************************************************/ | |
2496 | ||
2497 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2498 | ||
2499 | #define LFACE_FAMILY(LFACE) \ | |
2500 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2501 | #define LFACE_HEIGHT(LFACE) \ | |
2502 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2503 | #define LFACE_WEIGHT(LFACE) \ | |
2504 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2505 | #define LFACE_SLANT(LFACE) \ | |
2506 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2507 | #define LFACE_UNDERLINE(LFACE) \ | |
2508 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2509 | #define LFACE_INVERSE(LFACE) \ | |
2510 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2511 | #define LFACE_FOREGROUND(LFACE) \ | |
2512 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2513 | #define LFACE_BACKGROUND(LFACE) \ | |
2514 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2515 | #define LFACE_STIPPLE(LFACE) \ | |
2516 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2517 | #define LFACE_SWIDTH(LFACE) \ | |
2518 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2519 | #define LFACE_OVERLINE(LFACE) \ | |
2520 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2521 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2522 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2523 | #define LFACE_BOX(LFACE) \ | |
2524 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
2525 | ||
2526 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2527 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2528 | ||
2529 | #define LFACEP(LFACE) \ | |
2530 | (VECTORP (LFACE) \ | |
2531 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2532 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2533 | ||
2534 | ||
2535 | #if GLYPH_DEBUG | |
2536 | ||
2537 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2538 | ||
2539 | static void | |
2540 | check_lface_attrs (attrs) | |
2541 | Lisp_Object *attrs; | |
2542 | { | |
2543 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2544 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2545 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2546 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2547 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2548 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); | |
2549 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
2550 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2551 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2552 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2553 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2554 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2555 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2556 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2557 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2558 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2559 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2560 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2561 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2562 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2563 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2564 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2565 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2566 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2567 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2568 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2569 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2570 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2571 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2572 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2573 | #ifdef HAVE_WINDOW_SYSTEM | |
2574 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2575 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
2576 | || !NILP (Fpixmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); | |
2577 | #endif | |
2578 | } | |
2579 | ||
2580 | ||
2581 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2582 | ||
2583 | static void | |
2584 | check_lface (lface) | |
2585 | Lisp_Object lface; | |
2586 | { | |
2587 | if (!NILP (lface)) | |
2588 | { | |
2589 | xassert (LFACEP (lface)); | |
2590 | check_lface_attrs (XVECTOR (lface)->contents); | |
2591 | } | |
2592 | } | |
2593 | ||
2594 | #else /* GLYPH_DEBUG == 0 */ | |
2595 | ||
2596 | #define check_lface_attrs(attrs) (void) 0 | |
2597 | #define check_lface(lface) (void) 0 | |
2598 | ||
2599 | #endif /* GLYPH_DEBUG == 0 */ | |
2600 | ||
2601 | ||
2602 | /* Return the face definition of FACE_NAME on frame F. F null means | |
2603 | return the global definition. FACE_NAME may be a string or a | |
2604 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
2605 | text properties; ediff uses that). If SIGNAL_P is non-zero, signal | |
2606 | an error if FACE_NAME is not a valid face name. If SIGNAL_P is | |
2607 | zero, value is nil if FACE_NAME is not a valid face name. */ | |
2608 | ||
2609 | static INLINE Lisp_Object | |
2610 | lface_from_face_name (f, face_name, signal_p) | |
2611 | struct frame *f; | |
2612 | Lisp_Object face_name; | |
2613 | int signal_p; | |
2614 | { | |
2615 | Lisp_Object lface; | |
2616 | ||
2617 | if (STRINGP (face_name)) | |
2618 | face_name = intern (XSTRING (face_name)->data); | |
2619 | ||
2620 | if (f) | |
2621 | lface = assq_no_quit (face_name, f->face_alist); | |
2622 | else | |
2623 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2624 | ||
2625 | if (CONSP (lface)) | |
2626 | lface = XCDR (lface); | |
2627 | else if (signal_p) | |
2628 | signal_error ("Invalid face", face_name); | |
2629 | ||
2630 | check_lface (lface); | |
2631 | return lface; | |
2632 | } | |
2633 | ||
2634 | ||
2635 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2636 | frame F. Store the resulting attributes in ATTRS which must point | |
2637 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2638 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2639 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2640 | ||
2641 | static INLINE int | |
2642 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2643 | struct frame *f; | |
2644 | Lisp_Object face_name; | |
2645 | Lisp_Object *attrs; | |
2646 | int signal_p; | |
2647 | { | |
2648 | Lisp_Object lface; | |
2649 | int success_p; | |
2650 | ||
2651 | lface = lface_from_face_name (f, face_name, signal_p); | |
2652 | if (!NILP (lface)) | |
2653 | { | |
2654 | bcopy (XVECTOR (lface)->contents, attrs, | |
2655 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2656 | success_p = 1; | |
2657 | } | |
2658 | else | |
2659 | success_p = 0; | |
2660 | ||
2661 | return success_p; | |
2662 | } | |
2663 | ||
2664 | ||
2665 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2666 | specified, i.e. are non-nil. */ | |
2667 | ||
2668 | static int | |
2669 | lface_fully_specified_p (attrs) | |
2670 | Lisp_Object *attrs; | |
2671 | { | |
2672 | int i; | |
2673 | ||
2674 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2675 | if (UNSPECIFIEDP (attrs[i])) | |
2676 | break; | |
2677 | ||
2678 | return i == LFACE_VECTOR_SIZE; | |
2679 | } | |
2680 | ||
2681 | ||
2682 | #ifdef HAVE_X_WINDOWS | |
2683 | ||
2684 | /* Set font-related attributes of Lisp face LFACE from XLFD font name | |
2685 | FONT_NAME. If FORCE_P is zero, set only unspecified attributes of | |
2686 | LFACE. Ignore fields of FONT_NAME containing wildcards. Value is | |
2687 | zero if not successful because FONT_NAME was not in a valid format. | |
2688 | A valid format is one that is suitable for split_font_name, see the | |
2689 | comment there. */ | |
2690 | ||
2691 | static int | |
2692 | set_lface_from_font_name (f, lface, font_name, force_p) | |
2693 | struct frame *f; | |
2694 | Lisp_Object lface; | |
2695 | char *font_name; | |
2696 | int force_p; | |
2697 | { | |
2698 | struct font_name font; | |
2699 | char *buffer; | |
2700 | int pt; | |
2701 | int free_font_name_p = 0; | |
2702 | ||
2703 | /* If FONT_NAME contains wildcards, use the first matching font. */ | |
2704 | if (index (font_name, '*') || index (font_name, '?')) | |
2705 | { | |
2706 | if (!first_font_matching (f, font_name, &font)) | |
2707 | return 0; | |
2708 | free_font_name_p = 1; | |
2709 | } | |
2710 | else | |
2711 | { | |
2712 | font.name = STRDUPA (font_name); | |
2713 | if (!split_font_name (f, &font, 1)) | |
2714 | { | |
2715 | /* The font name may be something like `6x13'. Make | |
2716 | sure we use the full name. */ | |
2717 | struct font_info *font_info; | |
2718 | ||
2719 | BLOCK_INPUT; | |
2720 | font_info = fs_load_font (f, FRAME_X_FONT_TABLE (f), | |
2721 | CHARSET_ASCII, font_name, -1); | |
2722 | UNBLOCK_INPUT; | |
2723 | ||
2724 | if (!font_info) | |
2725 | return 0; | |
2726 | ||
2727 | font.name = STRDUPA (font_info->full_name); | |
2728 | split_font_name (f, &font, 1); | |
2729 | } | |
2730 | ||
2731 | /* FONT_NAME should not be a fontset name, here. */ | |
2732 | xassert (xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0); | |
2733 | } | |
2734 | ||
2735 | /* Set attributes only if unspecified, otherwise face defaults for | |
2736 | new frames would never take effect. */ | |
2737 | ||
2738 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2739 | { | |
2740 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
2741 | + strlen (font.fields[XLFD_FOUNDRY]) | |
2742 | + 2); | |
2743 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
2744 | font.fields[XLFD_FAMILY]); | |
2745 | LFACE_FAMILY (lface) = build_string (buffer); | |
2746 | } | |
2747 | ||
2748 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2749 | { | |
2750 | pt = xlfd_point_size (f, &font); | |
2751 | xassert (pt > 0); | |
2752 | LFACE_HEIGHT (lface) = make_number (pt); | |
2753 | } | |
2754 | ||
2755 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
2756 | LFACE_SWIDTH (lface) = xlfd_symbolic_swidth (&font); | |
2757 | ||
2758 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
2759 | LFACE_WEIGHT (lface) = xlfd_symbolic_weight (&font); | |
2760 | ||
2761 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
2762 | LFACE_SLANT (lface) = xlfd_symbolic_slant (&font); | |
2763 | ||
2764 | if (free_font_name_p) | |
2765 | xfree (font.name); | |
2766 | ||
2767 | return 1; | |
2768 | } | |
2769 | ||
2770 | #endif /* HAVE_X_WINDOWS */ | |
2771 | ||
2772 | ||
2773 | /* Merge two Lisp face attribute vectors FROM and TO and store the | |
2774 | resulting attributes in TO. Every non-nil attribute of FROM | |
2775 | overrides the corresponding attribute of TO. */ | |
2776 | ||
2777 | static INLINE void | |
2778 | merge_face_vectors (from, to) | |
2779 | Lisp_Object *from, *to; | |
2780 | { | |
2781 | int i; | |
2782 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2783 | if (!UNSPECIFIEDP (from[i])) | |
2784 | to[i] = from[i]; | |
2785 | } | |
2786 | ||
2787 | ||
2788 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
2789 | is a face property, determine the resulting face attributes on | |
2790 | frame F, and store them in TO. PROP may be a single face | |
2791 | specification or a list of such specifications. Each face | |
2792 | specification can be | |
2793 | ||
2794 | 1. A symbol or string naming a Lisp face. | |
2795 | ||
2796 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
2797 | KEYWORD is a face attribute name, and value is an appropriate value | |
2798 | for that attribute. | |
2799 | ||
2800 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
2801 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
2802 | for compatibility with 20.2. | |
2803 | ||
2804 | Face specifications earlier in lists take precedence over later | |
2805 | specifications. */ | |
2806 | ||
2807 | static void | |
2808 | merge_face_vector_with_property (f, to, prop) | |
2809 | struct frame *f; | |
2810 | Lisp_Object *to; | |
2811 | Lisp_Object prop; | |
2812 | { | |
2813 | if (CONSP (prop)) | |
2814 | { | |
2815 | Lisp_Object first = XCAR (prop); | |
2816 | ||
2817 | if (EQ (first, Qforeground_color) | |
2818 | || EQ (first, Qbackground_color)) | |
2819 | { | |
2820 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
2821 | . COLOR). COLOR must be a string. */ | |
2822 | Lisp_Object color_name = XCDR (prop); | |
2823 | Lisp_Object color = first; | |
2824 | ||
2825 | if (STRINGP (color_name)) | |
2826 | { | |
2827 | if (EQ (color, Qforeground_color)) | |
2828 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
2829 | else | |
2830 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
2831 | } | |
2832 | else | |
7dbdfcf8 | 2833 | add_to_log (f, "Invalid face color", color_name, Qnil); |
82641697 GM |
2834 | } |
2835 | else if (SYMBOLP (first) | |
2836 | && *XSYMBOL (first)->name->data == ':') | |
2837 | { | |
2838 | /* Assume this is the property list form. */ | |
2839 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
2840 | { | |
2841 | Lisp_Object keyword = XCAR (prop); | |
2842 | Lisp_Object value = XCAR (XCDR (prop)); | |
2843 | ||
2844 | if (EQ (keyword, QCfamily)) | |
2845 | { | |
2846 | if (STRINGP (value)) | |
2847 | to[LFACE_FAMILY_INDEX] = value; | |
2848 | else | |
7dbdfcf8 | 2849 | add_to_log (f, "Illegal face font family", value, Qnil); |
82641697 GM |
2850 | } |
2851 | else if (EQ (keyword, QCheight)) | |
2852 | { | |
2853 | if (INTEGERP (value)) | |
2854 | to[LFACE_HEIGHT_INDEX] = value; | |
2855 | else | |
7dbdfcf8 | 2856 | add_to_log (f, "Illegal face font height", value, Qnil); |
82641697 GM |
2857 | } |
2858 | else if (EQ (keyword, QCweight)) | |
2859 | { | |
2860 | if (SYMBOLP (value) | |
2861 | && face_numeric_weight (value) >= 0) | |
2862 | to[LFACE_WEIGHT_INDEX] = value; | |
2863 | else | |
7dbdfcf8 | 2864 | add_to_log (f, "Illegal face weight", value, Qnil); |
82641697 GM |
2865 | } |
2866 | else if (EQ (keyword, QCslant)) | |
2867 | { | |
2868 | if (SYMBOLP (value) | |
2869 | && face_numeric_slant (value) >= 0) | |
2870 | to[LFACE_SLANT_INDEX] = value; | |
2871 | else | |
7dbdfcf8 | 2872 | add_to_log (f, "Illegal face slant", value, Qnil); |
82641697 GM |
2873 | } |
2874 | else if (EQ (keyword, QCunderline)) | |
2875 | { | |
2876 | if (EQ (value, Qt) | |
2877 | || NILP (value) | |
2878 | || STRINGP (value)) | |
2879 | to[LFACE_UNDERLINE_INDEX] = value; | |
2880 | else | |
7dbdfcf8 | 2881 | add_to_log (f, "Illegal face underline", value, Qnil); |
82641697 GM |
2882 | } |
2883 | else if (EQ (keyword, QCoverline)) | |
2884 | { | |
2885 | if (EQ (value, Qt) | |
2886 | || NILP (value) | |
2887 | || STRINGP (value)) | |
2888 | to[LFACE_OVERLINE_INDEX] = value; | |
2889 | else | |
7dbdfcf8 | 2890 | add_to_log (f, "Illegal face overline", value, Qnil); |
82641697 GM |
2891 | } |
2892 | else if (EQ (keyword, QCstrike_through)) | |
2893 | { | |
2894 | if (EQ (value, Qt) | |
2895 | || NILP (value) | |
2896 | || STRINGP (value)) | |
2897 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
2898 | else | |
7dbdfcf8 | 2899 | add_to_log (f, "Illegal face strike-through", value, Qnil); |
82641697 GM |
2900 | } |
2901 | else if (EQ (keyword, QCbox)) | |
2902 | { | |
2903 | if (EQ (value, Qt)) | |
2904 | value = make_number (1); | |
2905 | if (INTEGERP (value) | |
2906 | || STRINGP (value) | |
2907 | || CONSP (value) | |
2908 | || NILP (value)) | |
2909 | to[LFACE_BOX_INDEX] = value; | |
2910 | else | |
7dbdfcf8 | 2911 | add_to_log (f, "Illegal face box", value, Qnil); |
82641697 GM |
2912 | } |
2913 | else if (EQ (keyword, QCinverse_video) | |
2914 | || EQ (keyword, QCreverse_video)) | |
2915 | { | |
2916 | if (EQ (value, Qt) || NILP (value)) | |
2917 | to[LFACE_INVERSE_INDEX] = value; | |
2918 | else | |
7dbdfcf8 | 2919 | add_to_log (f, "Illegal face inverse-video", value, Qnil); |
82641697 GM |
2920 | } |
2921 | else if (EQ (keyword, QCforeground)) | |
2922 | { | |
2923 | if (STRINGP (value)) | |
2924 | to[LFACE_FOREGROUND_INDEX] = value; | |
2925 | else | |
7dbdfcf8 | 2926 | add_to_log (f, "Illegal face foreground", value, Qnil); |
82641697 GM |
2927 | } |
2928 | else if (EQ (keyword, QCbackground)) | |
2929 | { | |
2930 | if (STRINGP (value)) | |
2931 | to[LFACE_BACKGROUND_INDEX] = value; | |
2932 | else | |
7dbdfcf8 | 2933 | add_to_log (f, "Illegal face background", value, Qnil); |
82641697 GM |
2934 | } |
2935 | else if (EQ (keyword, QCstipple)) | |
2936 | { | |
2937 | #ifdef HAVE_X_WINDOWS | |
2938 | Lisp_Object pixmap_p = Fpixmap_spec_p (value); | |
2939 | if (!NILP (pixmap_p)) | |
2940 | to[LFACE_STIPPLE_INDEX] = value; | |
2941 | else | |
7dbdfcf8 | 2942 | add_to_log (f, "Illegal face stipple", value, Qnil); |
82641697 GM |
2943 | #endif |
2944 | } | |
2945 | else if (EQ (keyword, QCwidth)) | |
2946 | { | |
2947 | if (SYMBOLP (value) | |
2948 | && face_numeric_swidth (value) >= 0) | |
2949 | to[LFACE_SWIDTH_INDEX] = value; | |
2950 | else | |
7dbdfcf8 | 2951 | add_to_log (f, "Illegal face width", value, Qnil); |
82641697 GM |
2952 | } |
2953 | else | |
7dbdfcf8 GM |
2954 | add_to_log (f, "Invalid attribute %s in face property", |
2955 | keyword, Qnil); | |
82641697 GM |
2956 | |
2957 | prop = XCDR (XCDR (prop)); | |
2958 | } | |
2959 | } | |
2960 | else | |
2961 | { | |
2962 | /* This is a list of face specs. Specifications at the | |
2963 | beginning of the list take precedence over later | |
2964 | specifications, so we have to merge starting with the | |
2965 | last specification. */ | |
2966 | Lisp_Object next = XCDR (prop); | |
2967 | if (!NILP (next)) | |
2968 | merge_face_vector_with_property (f, to, next); | |
2969 | merge_face_vector_with_property (f, to, first); | |
2970 | } | |
2971 | } | |
2972 | else | |
2973 | { | |
2974 | /* PROP ought to be a face name. */ | |
2975 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
2976 | if (NILP (lface)) | |
7dbdfcf8 | 2977 | add_to_log (f, "Invalid face text property value: %s", prop, Qnil); |
82641697 GM |
2978 | else |
2979 | merge_face_vectors (XVECTOR (lface)->contents, to); | |
2980 | } | |
2981 | } | |
2982 | ||
2983 | ||
2984 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
2985 | Sinternal_make_lisp_face, 1, 2, 0, | |
2986 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
2987 | If FACE was not known as a face before, create a new one.\n\ | |
2988 | If optional argument FRAME is specified, make a frame-local face\n\ | |
2989 | for that frame. Otherwise operate on the global face definition.\n\ | |
2990 | Value is a vector of face attributes.") | |
2991 | (face, frame) | |
2992 | Lisp_Object face, frame; | |
2993 | { | |
2994 | Lisp_Object global_lface, lface; | |
2995 | struct frame *f; | |
2996 | int i; | |
2997 | ||
2998 | CHECK_SYMBOL (face, 0); | |
2999 | global_lface = lface_from_face_name (NULL, face, 0); | |
3000 | ||
3001 | if (!NILP (frame)) | |
3002 | { | |
3003 | CHECK_LIVE_FRAME (frame, 1); | |
3004 | f = XFRAME (frame); | |
3005 | lface = lface_from_face_name (f, face, 0); | |
3006 | } | |
3007 | else | |
3008 | f = NULL, lface = Qnil; | |
3009 | ||
3010 | /* Add a global definition if there is none. */ | |
3011 | if (NILP (global_lface)) | |
3012 | { | |
3013 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3014 | Qunspecified); | |
3015 | XVECTOR (global_lface)->contents[0] = Qface; | |
3016 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), | |
3017 | Vface_new_frame_defaults); | |
3018 | ||
3019 | /* Assign the new Lisp face a unique ID. The mapping from Lisp | |
3020 | face id to Lisp face is given by the vector lface_id_to_name. | |
3021 | The mapping from Lisp face to Lisp face id is given by the | |
3022 | property `face' of the Lisp face name. */ | |
3023 | if (next_lface_id == lface_id_to_name_size) | |
3024 | { | |
3025 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3026 | int sz = new_size * sizeof *lface_id_to_name; | |
3027 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3028 | lface_id_to_name_size = new_size; | |
3029 | } | |
3030 | ||
3031 | lface_id_to_name[next_lface_id] = face; | |
3032 | Fput (face, Qface, make_number (next_lface_id)); | |
3033 | ++next_lface_id; | |
3034 | } | |
3035 | else if (f == NULL) | |
3036 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3037 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
3038 | ||
3039 | /* Add a frame-local definition. */ | |
3040 | if (f) | |
3041 | { | |
3042 | if (NILP (lface)) | |
3043 | { | |
3044 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3045 | Qunspecified); | |
3046 | XVECTOR (lface)->contents[0] = Qface; | |
3047 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3048 | } | |
3049 | else | |
3050 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3051 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3052 | } | |
3053 | else | |
3054 | lface = global_lface; | |
3055 | ||
3056 | xassert (LFACEP (lface)); | |
3057 | check_lface (lface); | |
3058 | return lface; | |
3059 | } | |
3060 | ||
3061 | ||
3062 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3063 | Sinternal_lisp_face_p, 1, 2, 0, | |
3064 | "Return non-nil if FACE names a face.\n\ | |
3065 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3066 | existence of a frame-local face with name FACE on that frame.\n\ | |
3067 | Otherwise check for the existence of a global face.") | |
3068 | (face, frame) | |
3069 | Lisp_Object face, frame; | |
3070 | { | |
3071 | Lisp_Object lface; | |
3072 | ||
3073 | if (!NILP (frame)) | |
3074 | { | |
3075 | CHECK_LIVE_FRAME (frame, 1); | |
3076 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3077 | } | |
3078 | else | |
3079 | lface = lface_from_face_name (NULL, face, 0); | |
3080 | ||
3081 | return lface; | |
3082 | } | |
3083 | ||
3084 | ||
3085 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3086 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3087 | "Copy face FROM to TO.\n\ | |
3088 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3089 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3090 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3091 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3092 | \n\ | |
3093 | Value is TO.") | |
3094 | (from, to, frame, new_frame) | |
3095 | Lisp_Object from, to, frame, new_frame; | |
3096 | { | |
3097 | Lisp_Object lface, copy; | |
3098 | ||
3099 | CHECK_SYMBOL (from, 0); | |
3100 | CHECK_SYMBOL (to, 1); | |
3101 | if (NILP (new_frame)) | |
3102 | new_frame = frame; | |
3103 | ||
3104 | if (EQ (frame, Qt)) | |
3105 | { | |
3106 | /* Copy global definition of FROM. We don't make copies of | |
3107 | strings etc. because 20.2 didn't do it either. */ | |
3108 | lface = lface_from_face_name (NULL, from, 1); | |
3109 | copy = Finternal_make_lisp_face (to, Qnil); | |
3110 | } | |
3111 | else | |
3112 | { | |
3113 | /* Copy frame-local definition of FROM. */ | |
3114 | CHECK_LIVE_FRAME (frame, 2); | |
3115 | CHECK_LIVE_FRAME (new_frame, 3); | |
3116 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3117 | copy = Finternal_make_lisp_face (to, new_frame); | |
3118 | } | |
3119 | ||
3120 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, | |
3121 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
3122 | ||
3123 | return to; | |
3124 | } | |
3125 | ||
3126 | ||
3127 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3128 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3129 | "Set attribute ATTR of FACE to VALUE.\n\ | |
3130 | If optional argument FRAME is given, set the face attribute of face FACE\n\ | |
3131 | on that frame. If FRAME is t, set the attribute of the default for face\n\ | |
3132 | FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ | |
3133 | frame.") | |
3134 | (face, attr, value, frame) | |
3135 | Lisp_Object face, attr, value, frame; | |
3136 | { | |
3137 | Lisp_Object lface; | |
3138 | Lisp_Object old_value = Qnil; | |
3139 | int font_related_attr_p = 0; | |
3140 | ||
3141 | CHECK_SYMBOL (face, 0); | |
3142 | CHECK_SYMBOL (attr, 1); | |
3143 | ||
3144 | /* Set lface to the Lisp attribute vector of FACE. */ | |
3145 | if (EQ (frame, Qt)) | |
3146 | lface = lface_from_face_name (NULL, face, 1); | |
3147 | else | |
3148 | { | |
3149 | if (NILP (frame)) | |
3150 | XSETFRAME (frame, selected_frame); | |
3151 | ||
3152 | CHECK_LIVE_FRAME (frame, 3); | |
3153 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3154 | ||
3155 | /* If a frame-local face doesn't exist yet, create one. */ | |
3156 | if (NILP (lface)) | |
3157 | lface = Finternal_make_lisp_face (face, frame); | |
3158 | } | |
3159 | ||
3160 | if (EQ (attr, QCfamily)) | |
3161 | { | |
3162 | if (!UNSPECIFIEDP (value)) | |
3163 | { | |
3164 | CHECK_STRING (value, 3); | |
3165 | if (XSTRING (value)->size == 0) | |
3166 | signal_error ("Invalid face family", value); | |
3167 | } | |
3168 | old_value = LFACE_FAMILY (lface); | |
3169 | LFACE_FAMILY (lface) = value; | |
3170 | font_related_attr_p = 1; | |
3171 | } | |
3172 | else if (EQ (attr, QCheight)) | |
3173 | { | |
3174 | if (!UNSPECIFIEDP (value)) | |
3175 | { | |
3176 | CHECK_NUMBER (value, 3); | |
3177 | if (XINT (value) <= 0) | |
3178 | signal_error ("Invalid face height", value); | |
3179 | } | |
3180 | old_value = LFACE_HEIGHT (lface); | |
3181 | LFACE_HEIGHT (lface) = value; | |
3182 | font_related_attr_p = 1; | |
3183 | } | |
3184 | else if (EQ (attr, QCweight)) | |
3185 | { | |
3186 | if (!UNSPECIFIEDP (value)) | |
3187 | { | |
3188 | CHECK_SYMBOL (value, 3); | |
3189 | if (face_numeric_weight (value) < 0) | |
3190 | signal_error ("Invalid face weight", value); | |
3191 | } | |
3192 | old_value = LFACE_WEIGHT (lface); | |
3193 | LFACE_WEIGHT (lface) = value; | |
3194 | font_related_attr_p = 1; | |
3195 | } | |
3196 | else if (EQ (attr, QCslant)) | |
3197 | { | |
3198 | if (!UNSPECIFIEDP (value)) | |
3199 | { | |
3200 | CHECK_SYMBOL (value, 3); | |
3201 | if (face_numeric_slant (value) < 0) | |
3202 | signal_error ("Invalid face slant", value); | |
3203 | } | |
3204 | old_value = LFACE_SLANT (lface); | |
3205 | LFACE_SLANT (lface) = value; | |
3206 | font_related_attr_p = 1; | |
3207 | } | |
3208 | else if (EQ (attr, QCunderline)) | |
3209 | { | |
3210 | if (!UNSPECIFIEDP (value)) | |
3211 | if ((SYMBOLP (value) | |
3212 | && !EQ (value, Qt) | |
3213 | && !EQ (value, Qnil)) | |
3214 | /* Underline color. */ | |
3215 | || (STRINGP (value) | |
3216 | && XSTRING (value)->size == 0)) | |
3217 | signal_error ("Invalid face underline", value); | |
3218 | ||
3219 | old_value = LFACE_UNDERLINE (lface); | |
3220 | LFACE_UNDERLINE (lface) = value; | |
3221 | } | |
3222 | else if (EQ (attr, QCoverline)) | |
3223 | { | |
3224 | if (!UNSPECIFIEDP (value)) | |
3225 | if ((SYMBOLP (value) | |
3226 | && !EQ (value, Qt) | |
3227 | && !EQ (value, Qnil)) | |
3228 | /* Overline color. */ | |
3229 | || (STRINGP (value) | |
3230 | && XSTRING (value)->size == 0)) | |
3231 | signal_error ("Invalid face overline", value); | |
3232 | ||
3233 | old_value = LFACE_OVERLINE (lface); | |
3234 | LFACE_OVERLINE (lface) = value; | |
3235 | } | |
3236 | else if (EQ (attr, QCstrike_through)) | |
3237 | { | |
3238 | if (!UNSPECIFIEDP (value)) | |
3239 | if ((SYMBOLP (value) | |
3240 | && !EQ (value, Qt) | |
3241 | && !EQ (value, Qnil)) | |
3242 | /* Strike-through color. */ | |
3243 | || (STRINGP (value) | |
3244 | && XSTRING (value)->size == 0)) | |
3245 | signal_error ("Invalid face strike-through", value); | |
3246 | ||
3247 | old_value = LFACE_STRIKE_THROUGH (lface); | |
3248 | LFACE_STRIKE_THROUGH (lface) = value; | |
3249 | } | |
3250 | else if (EQ (attr, QCbox)) | |
3251 | { | |
3252 | int valid_p; | |
3253 | ||
3254 | /* Allow t meaning a simple box of width 1 in foreground color | |
3255 | of the face. */ | |
3256 | if (EQ (value, Qt)) | |
3257 | value = make_number (1); | |
3258 | ||
3259 | if (UNSPECIFIEDP (value)) | |
3260 | valid_p = 1; | |
3261 | else if (NILP (value)) | |
3262 | valid_p = 1; | |
3263 | else if (INTEGERP (value)) | |
3264 | valid_p = XINT (value) > 0; | |
3265 | else if (STRINGP (value)) | |
3266 | valid_p = XSTRING (value)->size > 0; | |
3267 | else if (CONSP (value)) | |
3268 | { | |
3269 | Lisp_Object tem; | |
3270 | ||
3271 | tem = value; | |
3272 | while (CONSP (tem)) | |
3273 | { | |
3274 | Lisp_Object k, v; | |
3275 | ||
3276 | k = XCAR (tem); | |
3277 | tem = XCDR (tem); | |
3278 | if (!CONSP (tem)) | |
3279 | break; | |
3280 | v = XCAR (tem); | |
3281 | tem = XCDR (tem); | |
3282 | ||
3283 | if (EQ (k, QCline_width)) | |
3284 | { | |
3285 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3286 | break; | |
3287 | } | |
3288 | else if (EQ (k, QCcolor)) | |
3289 | { | |
3290 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3291 | break; | |
3292 | } | |
3293 | else if (EQ (k, QCstyle)) | |
3294 | { | |
3295 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3296 | break; | |
3297 | } | |
3298 | else | |
3299 | break; | |
3300 | } | |
3301 | ||
3302 | valid_p = NILP (tem); | |
3303 | } | |
3304 | else | |
3305 | valid_p = 0; | |
3306 | ||
3307 | if (!valid_p) | |
3308 | signal_error ("Invalid face box", value); | |
3309 | ||
3310 | old_value = LFACE_BOX (lface); | |
3311 | LFACE_BOX (lface) = value; | |
3312 | } | |
3313 | else if (EQ (attr, QCinverse_video) | |
3314 | || EQ (attr, QCreverse_video)) | |
3315 | { | |
3316 | if (!UNSPECIFIEDP (value)) | |
3317 | { | |
3318 | CHECK_SYMBOL (value, 3); | |
3319 | if (!EQ (value, Qt) && !NILP (value)) | |
3320 | signal_error ("Invalid inverse-video face attribute value", value); | |
3321 | } | |
3322 | old_value = LFACE_INVERSE (lface); | |
3323 | LFACE_INVERSE (lface) = value; | |
3324 | } | |
3325 | else if (EQ (attr, QCforeground)) | |
3326 | { | |
3327 | if (!UNSPECIFIEDP (value)) | |
3328 | { | |
3329 | /* Don't check for valid color names here because it depends | |
3330 | on the frame (display) whether the color will be valid | |
3331 | when the face is realized. */ | |
3332 | CHECK_STRING (value, 3); | |
3333 | if (XSTRING (value)->size == 0) | |
3334 | signal_error ("Empty foreground color value", value); | |
3335 | } | |
3336 | old_value = LFACE_FOREGROUND (lface); | |
3337 | LFACE_FOREGROUND (lface) = value; | |
3338 | } | |
3339 | else if (EQ (attr, QCbackground)) | |
3340 | { | |
3341 | if (!UNSPECIFIEDP (value)) | |
3342 | { | |
3343 | /* Don't check for valid color names here because it depends | |
3344 | on the frame (display) whether the color will be valid | |
3345 | when the face is realized. */ | |
3346 | CHECK_STRING (value, 3); | |
3347 | if (XSTRING (value)->size == 0) | |
3348 | signal_error ("Empty background color value", value); | |
3349 | } | |
3350 | old_value = LFACE_BACKGROUND (lface); | |
3351 | LFACE_BACKGROUND (lface) = value; | |
3352 | } | |
3353 | else if (EQ (attr, QCstipple)) | |
3354 | { | |
3355 | #ifdef HAVE_X_WINDOWS | |
3356 | if (!UNSPECIFIEDP (value) | |
3357 | && !NILP (value) | |
3358 | && NILP (Fpixmap_spec_p (value))) | |
3359 | signal_error ("Invalid stipple attribute", value); | |
3360 | old_value = LFACE_STIPPLE (lface); | |
3361 | LFACE_STIPPLE (lface) = value; | |
3362 | #endif /* HAVE_X_WINDOWS */ | |
3363 | } | |
3364 | else if (EQ (attr, QCwidth)) | |
3365 | { | |
3366 | if (!UNSPECIFIEDP (value)) | |
3367 | { | |
3368 | CHECK_SYMBOL (value, 3); | |
3369 | if (face_numeric_swidth (value) < 0) | |
3370 | signal_error ("Invalid face width", value); | |
3371 | } | |
3372 | old_value = LFACE_SWIDTH (lface); | |
3373 | LFACE_SWIDTH (lface) = value; | |
3374 | font_related_attr_p = 1; | |
3375 | } | |
3376 | else if (EQ (attr, QCfont)) | |
3377 | { | |
3378 | #ifdef HAVE_X_WINDOWS | |
3379 | /* Set font-related attributes of the Lisp face from an | |
3380 | XLFD font name. */ | |
3381 | struct frame *f; | |
3382 | ||
3383 | CHECK_STRING (value, 3); | |
3384 | if (EQ (frame, Qt)) | |
3385 | f = selected_frame; | |
3386 | else | |
3387 | f = check_x_frame (frame); | |
3388 | ||
3389 | if (!set_lface_from_font_name (f, lface, XSTRING (value)->data, 1)) | |
3390 | signal_error ("Invalid font name", value); | |
3391 | ||
3392 | font_related_attr_p = 1; | |
3393 | #endif /* HAVE_X_WINDOWS */ | |
3394 | } | |
3395 | else if (EQ (attr, QCbold)) | |
3396 | { | |
3397 | old_value = LFACE_WEIGHT (lface); | |
3398 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3399 | font_related_attr_p = 1; | |
3400 | } | |
3401 | else if (EQ (attr, QCitalic)) | |
3402 | { | |
3403 | old_value = LFACE_SLANT (lface); | |
3404 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3405 | font_related_attr_p = 1; | |
3406 | } | |
3407 | else | |
3408 | signal_error ("Invalid face attribute name", attr); | |
3409 | ||
3410 | /* Changing a named face means that all realized faces depending on | |
3411 | that face are invalid. Since we cannot tell which realized faces | |
3412 | depend on the face, make sure they are all removed. This is done | |
3413 | by incrementing face_change_count. The next call to | |
3414 | init_iterator will then free realized faces. */ | |
3415 | if (!EQ (frame, Qt) | |
3416 | && (EQ (attr, QCfont) | |
3417 | || NILP (Fequal (old_value, value)))) | |
3418 | { | |
3419 | ++face_change_count; | |
3420 | ++windows_or_buffers_changed; | |
3421 | } | |
3422 | ||
3423 | #ifdef HAVE_X_WINDOWS | |
3424 | /* Changed font-related attributes of the `default' face are | |
3425 | reflected in changed `font' frame parameters. */ | |
3426 | if (EQ (face, Qdefault) | |
3427 | && !EQ (frame, Qt) | |
3428 | && font_related_attr_p | |
3429 | && lface_fully_specified_p (XVECTOR (lface)->contents) | |
3430 | && NILP (Fequal (old_value, value))) | |
3431 | set_font_frame_param (frame, lface); | |
3432 | ||
3433 | #endif /* HAVE_X_WINDOWS */ | |
3434 | ||
3435 | return face; | |
3436 | } | |
3437 | ||
3438 | ||
3439 | #ifdef HAVE_X_WINDOWS | |
3440 | ||
3441 | /* Set the `font' frame parameter of FRAME according to `default' face | |
3442 | attributes LFACE. */ | |
3443 | ||
3444 | static void | |
3445 | set_font_frame_param (frame, lface) | |
3446 | Lisp_Object frame, lface; | |
3447 | { | |
3448 | struct frame *f = XFRAME (frame); | |
3449 | Lisp_Object frame_font; | |
3450 | int fontset; | |
3451 | char *font; | |
3452 | ||
3453 | /* Get FRAME's font parameter. */ | |
3454 | frame_font = Fassq (Qfont, f->param_alist); | |
3455 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
3456 | frame_font = XCDR (frame_font); | |
3457 | ||
3458 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
3459 | if (fontset >= 0) | |
3460 | { | |
3461 | /* Frame parameter is a fontset name. Modify the fontset so | |
3462 | that all its fonts reflect face attributes LFACE. */ | |
3463 | int charset; | |
3464 | struct fontset_info *fontset_info; | |
3465 | ||
3466 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
3467 | ||
3468 | for (charset = 0; charset < MAX_CHARSET; ++charset) | |
3469 | if (fontset_info->fontname[charset]) | |
3470 | { | |
3471 | font = choose_face_fontset_font (f, XVECTOR (lface)->contents, | |
3472 | fontset, charset); | |
3473 | Fset_fontset_font (frame_font, CHARSET_SYMBOL (charset), | |
3474 | build_string (font), frame); | |
3475 | xfree (font); | |
3476 | } | |
3477 | } | |
3478 | else | |
3479 | { | |
3480 | /* Frame parameter is an X font name. I believe this can | |
3481 | only happen in unibyte mode. */ | |
3482 | font = choose_face_font (f, XVECTOR (lface)->contents, | |
3483 | -1, Vface_default_registry); | |
3484 | if (font) | |
3485 | { | |
3486 | store_frame_param (f, Qfont, build_string (font)); | |
3487 | xfree (font); | |
3488 | } | |
3489 | } | |
3490 | } | |
3491 | ||
3492 | ||
3493 | /* Get the value of X resource RESOURCE, class CLASS for the display | |
3494 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3495 | doesn't take a frame argument. */ | |
3496 | ||
3497 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
3498 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
3499 | (resource, class, frame) | |
3500 | Lisp_Object resource, class, frame; | |
3501 | { | |
3502 | Lisp_Object value; | |
3503 | CHECK_STRING (resource, 0); | |
3504 | CHECK_STRING (class, 1); | |
3505 | CHECK_LIVE_FRAME (frame, 2); | |
3506 | BLOCK_INPUT; | |
3507 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3508 | resource, class, Qnil, Qnil); | |
3509 | UNBLOCK_INPUT; | |
3510 | return value; | |
3511 | } | |
3512 | ||
3513 | ||
3514 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3515 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3516 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3517 | error; if SIGNAL_P is zero, return 0. */ | |
3518 | ||
3519 | static Lisp_Object | |
3520 | face_boolean_x_resource_value (value, signal_p) | |
3521 | Lisp_Object value; | |
3522 | int signal_p; | |
3523 | { | |
3524 | Lisp_Object result = make_number (0); | |
3525 | ||
3526 | xassert (STRINGP (value)); | |
3527 | ||
3528 | if (xstricmp (XSTRING (value)->data, "on") == 0 | |
3529 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
3530 | result = Qt; | |
3531 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
3532 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
3533 | result = Qnil; | |
3534 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3535 | result = Qunspecified; | |
3536 | else if (signal_p) | |
3537 | signal_error ("Invalid face attribute value from X resource", value); | |
3538 | ||
3539 | return result; | |
3540 | } | |
3541 | ||
3542 | ||
3543 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3544 | Finternal_set_lisp_face_attribute_from_resource, | |
3545 | Sinternal_set_lisp_face_attribute_from_resource, | |
3546 | 3, 4, 0, "") | |
3547 | (face, attr, value, frame) | |
3548 | Lisp_Object face, attr, value, frame; | |
3549 | { | |
3550 | CHECK_SYMBOL (face, 0); | |
3551 | CHECK_SYMBOL (attr, 1); | |
3552 | CHECK_STRING (value, 2); | |
3553 | ||
3554 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3555 | value = Qunspecified; | |
3556 | else if (EQ (attr, QCheight)) | |
3557 | { | |
3558 | value = Fstring_to_number (value, make_number (10)); | |
3559 | if (XINT (value) <= 0) | |
3560 | signal_error ("Invalid face height from X resource", value); | |
3561 | } | |
3562 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3563 | value = face_boolean_x_resource_value (value, 1); | |
3564 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
3565 | value = intern (XSTRING (value)->data); | |
3566 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
3567 | value = face_boolean_x_resource_value (value, 1); | |
3568 | else if (EQ (attr, QCunderline) | |
3569 | || EQ (attr, QCoverline) | |
3570 | || EQ (attr, QCstrike_through) | |
3571 | || EQ (attr, QCbox)) | |
3572 | { | |
3573 | Lisp_Object boolean_value; | |
3574 | ||
3575 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3576 | VALUE does NOT specify a color. */ | |
3577 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3578 | if (SYMBOLP (boolean_value)) | |
3579 | value = boolean_value; | |
3580 | } | |
3581 | ||
3582 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3583 | } | |
3584 | ||
3585 | ||
3586 | #endif /* HAVE_X_WINDOWS */ | |
3587 | ||
3588 | ||
3589 | ||
3590 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
3591 | Sinternal_get_lisp_face_attribute, | |
3592 | 2, 3, 0, | |
3593 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
3594 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
3595 | face attribute name, signal an error.\n\ | |
3596 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
3597 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
3598 | frames). If FRAME is omitted or nil, use the selected frame.") | |
3599 | (symbol, keyword, frame) | |
3600 | Lisp_Object symbol, keyword, frame; | |
3601 | { | |
3602 | Lisp_Object lface, value = Qnil; | |
3603 | ||
3604 | CHECK_SYMBOL (symbol, 0); | |
3605 | CHECK_SYMBOL (keyword, 1); | |
3606 | ||
3607 | if (EQ (frame, Qt)) | |
3608 | lface = lface_from_face_name (NULL, symbol, 1); | |
3609 | else | |
3610 | { | |
3611 | if (NILP (frame)) | |
3612 | XSETFRAME (frame, selected_frame); | |
3613 | CHECK_LIVE_FRAME (frame, 2); | |
3614 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
3615 | } | |
3616 | ||
3617 | if (EQ (keyword, QCfamily)) | |
3618 | value = LFACE_FAMILY (lface); | |
3619 | else if (EQ (keyword, QCheight)) | |
3620 | value = LFACE_HEIGHT (lface); | |
3621 | else if (EQ (keyword, QCweight)) | |
3622 | value = LFACE_WEIGHT (lface); | |
3623 | else if (EQ (keyword, QCslant)) | |
3624 | value = LFACE_SLANT (lface); | |
3625 | else if (EQ (keyword, QCunderline)) | |
3626 | value = LFACE_UNDERLINE (lface); | |
3627 | else if (EQ (keyword, QCoverline)) | |
3628 | value = LFACE_OVERLINE (lface); | |
3629 | else if (EQ (keyword, QCstrike_through)) | |
3630 | value = LFACE_STRIKE_THROUGH (lface); | |
3631 | else if (EQ (keyword, QCbox)) | |
3632 | value = LFACE_BOX (lface); | |
3633 | else if (EQ (keyword, QCinverse_video) | |
3634 | || EQ (keyword, QCreverse_video)) | |
3635 | value = LFACE_INVERSE (lface); | |
3636 | else if (EQ (keyword, QCforeground)) | |
3637 | value = LFACE_FOREGROUND (lface); | |
3638 | else if (EQ (keyword, QCbackground)) | |
3639 | value = LFACE_BACKGROUND (lface); | |
3640 | else if (EQ (keyword, QCstipple)) | |
3641 | value = LFACE_STIPPLE (lface); | |
3642 | else if (EQ (keyword, QCwidth)) | |
3643 | value = LFACE_SWIDTH (lface); | |
3644 | else | |
3645 | signal_error ("Invalid face attribute name", keyword); | |
3646 | ||
3647 | return value; | |
3648 | } | |
3649 | ||
3650 | ||
3651 | DEFUN ("internal-lisp-face-attribute-values", | |
3652 | Finternal_lisp_face_attribute_values, | |
3653 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
3654 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
3655 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
3656 | (attr) | |
3657 | Lisp_Object attr; | |
3658 | { | |
3659 | Lisp_Object result = Qnil; | |
3660 | ||
3661 | CHECK_SYMBOL (attr, 0); | |
3662 | ||
3663 | if (EQ (attr, QCweight) | |
3664 | || EQ (attr, QCslant) | |
3665 | || EQ (attr, QCwidth)) | |
3666 | { | |
3667 | /* Extract permissible symbols from tables. */ | |
3668 | struct table_entry *table; | |
3669 | int i, dim; | |
3670 | ||
3671 | if (EQ (attr, QCweight)) | |
3672 | table = weight_table, dim = DIM (weight_table); | |
3673 | else if (EQ (attr, QCslant)) | |
3674 | table = slant_table, dim = DIM (slant_table); | |
3675 | else | |
3676 | table = swidth_table, dim = DIM (swidth_table); | |
3677 | ||
3678 | for (i = 0; i < dim; ++i) | |
3679 | { | |
3680 | Lisp_Object symbol = *table[i].symbol; | |
3681 | Lisp_Object tail = result; | |
3682 | ||
3683 | while (!NILP (tail) | |
3684 | && !EQ (XCAR (tail), symbol)) | |
3685 | tail = XCDR (tail); | |
3686 | ||
3687 | if (NILP (tail)) | |
3688 | result = Fcons (symbol, result); | |
3689 | } | |
3690 | } | |
3691 | else if (EQ (attr, QCunderline)) | |
3692 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3693 | else if (EQ (attr, QCoverline)) | |
3694 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3695 | else if (EQ (attr, QCstrike_through)) | |
3696 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3697 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
3698 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3699 | ||
3700 | return result; | |
3701 | } | |
3702 | ||
3703 | ||
3704 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
3705 | Sinternal_merge_in_global_face, 2, 2, 0, | |
3706 | "Add attributes from frame-default definition of FACE to FACE on FRAME.") | |
3707 | (face, frame) | |
3708 | Lisp_Object face, frame; | |
3709 | { | |
3710 | Lisp_Object global_lface, local_lface; | |
3711 | CHECK_LIVE_FRAME (frame, 1); | |
3712 | global_lface = lface_from_face_name (NULL, face, 1); | |
3713 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3714 | if (NILP (local_lface)) | |
3715 | local_lface = Finternal_make_lisp_face (face, frame); | |
3716 | merge_face_vectors (XVECTOR (global_lface)->contents, | |
3717 | XVECTOR (local_lface)->contents); | |
3718 | return face; | |
3719 | } | |
3720 | ||
3721 | ||
3722 | /* The following function is implemented for compatibility with 20.2. | |
3723 | The function is used in x-resolve-fonts when it is asked to | |
3724 | return fonts with the same size as the font of a face. This is | |
3725 | done in fontset.el. */ | |
3726 | ||
3727 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, | |
3728 | "Return the font name of face FACE, or nil if it is unspecified.\n\ | |
3729 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3730 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3731 | The font default for a face is either nil, or a list\n\ | |
3732 | of the form (bold), (italic) or (bold italic).\n\ | |
3733 | If FRAME is omitted or nil, use the selected frame.") | |
3734 | (face, frame) | |
3735 | Lisp_Object face, frame; | |
3736 | { | |
3737 | if (EQ (frame, Qt)) | |
3738 | { | |
3739 | Lisp_Object result = Qnil; | |
3740 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
3741 | ||
3742 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3743 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
3744 | result = Fcons (Qbold, result); | |
3745 | ||
3746 | if (!NILP (LFACE_SLANT (lface)) | |
3747 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
3748 | result = Fcons (Qitalic, result); | |
3749 | ||
3750 | return result; | |
3751 | } | |
3752 | else | |
3753 | { | |
3754 | struct frame *f = frame_or_selected_frame (frame, 1); | |
3755 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
3756 | struct face *face = FACE_FROM_ID (f, face_id); | |
3757 | return build_string (face->font_name); | |
3758 | } | |
3759 | } | |
3760 | ||
3761 | ||
3762 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
3763 | all attributes are `equal'. Tries to be fast because this function | |
3764 | is called quite often. */ | |
3765 | ||
3766 | static INLINE int | |
3767 | lface_equal_p (v1, v2) | |
3768 | Lisp_Object *v1, *v2; | |
3769 | { | |
3770 | int i, equal_p = 1; | |
3771 | ||
3772 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
3773 | { | |
3774 | Lisp_Object a = v1[i]; | |
3775 | Lisp_Object b = v2[i]; | |
3776 | ||
3777 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
3778 | and the other is specified. */ | |
3779 | equal_p = XTYPE (a) == XTYPE (b); | |
3780 | if (!equal_p) | |
3781 | break; | |
3782 | ||
3783 | if (!EQ (a, b)) | |
3784 | { | |
3785 | switch (XTYPE (a)) | |
3786 | { | |
3787 | case Lisp_String: | |
3788 | equal_p = (XSTRING (a)->size == XSTRING (b)->size | |
3789 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, | |
3790 | XSTRING (a)->size) == 0); | |
3791 | break; | |
3792 | ||
3793 | case Lisp_Int: | |
3794 | case Lisp_Symbol: | |
3795 | equal_p = 0; | |
3796 | break; | |
3797 | ||
3798 | default: | |
3799 | equal_p = !NILP (Fequal (a, b)); | |
3800 | break; | |
3801 | } | |
3802 | } | |
3803 | } | |
3804 | ||
3805 | return equal_p; | |
3806 | } | |
3807 | ||
3808 | ||
3809 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
3810 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
3811 | "True if FACE1 and FACE2 are equal.\n\ | |
3812 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3813 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3814 | If FRAME is omitted or nil, use the selected frame.") | |
3815 | (face1, face2, frame) | |
3816 | Lisp_Object face1, face2, frame; | |
3817 | { | |
3818 | int equal_p; | |
3819 | struct frame *f; | |
3820 | Lisp_Object lface1, lface2; | |
3821 | ||
3822 | if (EQ (frame, Qt)) | |
3823 | f = NULL; | |
3824 | else | |
3825 | /* Don't use check_x_frame here because this function is called | |
3826 | before X frames exist. At that time, if FRAME is nil, | |
3827 | selected_frame will be used which is the frame dumped with | |
3828 | Emacs. That frame is not an X frame. */ | |
3829 | f = frame_or_selected_frame (frame, 2); | |
3830 | ||
3831 | lface1 = lface_from_face_name (NULL, face1, 1); | |
3832 | lface2 = lface_from_face_name (NULL, face2, 1); | |
3833 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
3834 | XVECTOR (lface2)->contents); | |
3835 | return equal_p ? Qt : Qnil; | |
3836 | } | |
3837 | ||
3838 | ||
3839 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, | |
3840 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
3841 | "True if FACE has no attribute specified.\n\ | |
3842 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3843 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3844 | If FRAME is omitted or nil, use the selected frame.") | |
3845 | (face, frame) | |
3846 | Lisp_Object face, frame; | |
3847 | { | |
3848 | struct frame *f; | |
3849 | Lisp_Object lface; | |
3850 | int i; | |
3851 | ||
3852 | if (NILP (frame)) | |
3853 | f = selected_frame; | |
3854 | else | |
3855 | { | |
3856 | CHECK_LIVE_FRAME (frame, 0); | |
3857 | f = XFRAME (frame); | |
3858 | } | |
3859 | ||
3860 | if (EQ (frame, Qt)) | |
3861 | lface = lface_from_face_name (NULL, face, 1); | |
3862 | else | |
3863 | lface = lface_from_face_name (f, face, 1); | |
3864 | ||
3865 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3866 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
3867 | break; | |
3868 | ||
3869 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; | |
3870 | } | |
3871 | ||
3872 | ||
3873 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
3874 | 0, 1, 0, | |
3875 | "Return an alist of frame-local faces defined on FRAME.\n\ | |
3876 | For internal use only.") | |
3877 | (frame) | |
3878 | Lisp_Object frame; | |
3879 | { | |
3880 | struct frame *f = frame_or_selected_frame (frame, 0); | |
3881 | return f->face_alist; | |
3882 | } | |
3883 | ||
3884 | ||
3885 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
3886 | below in computing a hash value for a Lisp face. */ | |
3887 | ||
3888 | static INLINE unsigned | |
3889 | hash_string_case_insensitive (string) | |
3890 | Lisp_Object string; | |
3891 | { | |
3892 | unsigned char *s; | |
3893 | unsigned hash = 0; | |
3894 | xassert (STRINGP (string)); | |
3895 | for (s = XSTRING (string)->data; *s; ++s) | |
3896 | hash = (hash << 1) ^ tolower (*s); | |
3897 | return hash; | |
3898 | } | |
3899 | ||
3900 | ||
3901 | /* Return a hash code for face attribute vector V. */ | |
3902 | ||
3903 | static INLINE unsigned | |
3904 | lface_hash (v) | |
3905 | Lisp_Object *v; | |
3906 | { | |
3907 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
3908 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
3909 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
3910 | ^ (unsigned) v[LFACE_WEIGHT_INDEX] | |
3911 | ^ (unsigned) v[LFACE_SLANT_INDEX] | |
3912 | ^ (unsigned) v[LFACE_SWIDTH_INDEX] | |
3913 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); | |
3914 | } | |
3915 | ||
3916 | ||
3917 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
3918 | considering charsets/registries). They do if they specify the same | |
3919 | family, point size, weight, width and slant. Both LFACE1 and | |
3920 | LFACE2 must be fully-specified. */ | |
3921 | ||
3922 | static INLINE int | |
3923 | lface_same_font_attributes_p (lface1, lface2) | |
3924 | Lisp_Object *lface1, *lface2; | |
3925 | { | |
3926 | xassert (lface_fully_specified_p (lface1) | |
3927 | && lface_fully_specified_p (lface2)); | |
3928 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
3929 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
3930 | && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) | |
3931 | == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) | |
3932 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) | |
3933 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
3934 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX])); | |
3935 | } | |
3936 | ||
3937 | ||
3938 | \f | |
3939 | /*********************************************************************** | |
3940 | Realized Faces | |
3941 | ***********************************************************************/ | |
3942 | ||
3943 | /* Allocate and return a new realized face for Lisp face attribute | |
3944 | vector ATTR, charset CHARSET, and registry REGISTRY. */ | |
3945 | ||
3946 | static struct face * | |
3947 | make_realized_face (attr, charset, registry) | |
3948 | Lisp_Object *attr; | |
3949 | int charset; | |
3950 | Lisp_Object registry; | |
3951 | { | |
3952 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
3953 | bzero (face, sizeof *face); | |
3954 | face->charset = charset; | |
3955 | face->registry = registry; | |
3956 | bcopy (attr, face->lface, sizeof face->lface); | |
3957 | return face; | |
3958 | } | |
3959 | ||
3960 | ||
3961 | /* Free realized face FACE, including its X resources. FACE may | |
3962 | be null. */ | |
3963 | ||
3964 | static void | |
3965 | free_realized_face (f, face) | |
3966 | struct frame *f; | |
3967 | struct face *face; | |
3968 | { | |
3969 | if (face) | |
3970 | { | |
3971 | #ifdef HAVE_X_WINDOWS | |
3972 | if (FRAME_X_P (f)) | |
3973 | { | |
3974 | if (face->gc) | |
3975 | { | |
3976 | x_free_gc (f, face->gc); | |
3977 | face->gc = 0; | |
3978 | } | |
3979 | ||
3980 | free_face_colors (f, face); | |
3981 | x_destroy_bitmap (f, face->stipple); | |
3982 | } | |
3983 | #endif /* HAVE_X_WINDOWS */ | |
3984 | ||
3985 | xfree (face); | |
3986 | } | |
3987 | } | |
3988 | ||
3989 | ||
3990 | /* Prepare face FACE for subsequent display on frame F. This | |
3991 | allocated GCs if they haven't been allocated yet or have been freed | |
3992 | by clearing the face cache. */ | |
3993 | ||
3994 | void | |
3995 | prepare_face_for_display (f, face) | |
3996 | struct frame *f; | |
3997 | struct face *face; | |
3998 | { | |
3999 | #ifdef HAVE_X_WINDOWS | |
4000 | xassert (FRAME_X_P (f)); | |
4001 | ||
4002 | if (face->gc == 0) | |
4003 | { | |
4004 | XGCValues xgcv; | |
4005 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4006 | ||
4007 | xgcv.foreground = face->foreground; | |
4008 | xgcv.background = face->background; | |
4009 | xgcv.graphics_exposures = False; | |
4010 | ||
4011 | /* The font of FACE may be null if we couldn't load it. */ | |
4012 | if (face->font) | |
4013 | { | |
4014 | xgcv.font = face->font->fid; | |
4015 | mask |= GCFont; | |
4016 | } | |
4017 | ||
4018 | BLOCK_INPUT; | |
4019 | if (face->stipple) | |
4020 | { | |
be8a72f4 | 4021 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4022 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4023 | mask |= GCFillStyle | GCStipple; | |
4024 | } | |
4025 | ||
4026 | face->gc = x_create_gc (f, mask, &xgcv); | |
4027 | UNBLOCK_INPUT; | |
4028 | } | |
4029 | #endif | |
4030 | } | |
4031 | ||
4032 | ||
4033 | /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in | |
4034 | macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for | |
4035 | ISO8859-1 if the ASCII face suffices. */ | |
4036 | ||
4037 | int | |
4038 | face_suitable_for_iso8859_1_p (face) | |
4039 | struct face *face; | |
4040 | { | |
4041 | int len = strlen (face->font_name); | |
4042 | return len >= 9 && xstricmp (face->font_name + len - 9, "iso8859-1") == 0; | |
4043 | } | |
4044 | ||
4045 | ||
4046 | /* Value is non-zero if FACE is suitable for displaying characters | |
4047 | of CHARSET. CHARSET < 0 means unibyte text. */ | |
4048 | ||
4049 | INLINE int | |
4050 | face_suitable_for_charset_p (face, charset) | |
4051 | struct face *face; | |
4052 | int charset; | |
4053 | { | |
4054 | int suitable_p = 0; | |
4055 | ||
4056 | if (charset < 0) | |
4057 | { | |
4058 | if (EQ (face->registry, Vface_default_registry) | |
4059 | || !NILP (Fequal (face->registry, Vface_default_registry))) | |
4060 | suitable_p = 1; | |
4061 | } | |
4062 | else if (face->charset == charset) | |
4063 | suitable_p = 1; | |
4064 | else if (face->charset == CHARSET_ASCII | |
4065 | && charset == charset_latin_iso8859_1) | |
4066 | suitable_p = face_suitable_for_iso8859_1_p (face); | |
4067 | else if (face->charset == charset_latin_iso8859_1 | |
4068 | && charset == CHARSET_ASCII) | |
4069 | suitable_p = 1; | |
4070 | ||
4071 | return suitable_p; | |
4072 | } | |
4073 | ||
4074 | ||
4075 | \f | |
4076 | /*********************************************************************** | |
4077 | Face Cache | |
4078 | ***********************************************************************/ | |
4079 | ||
4080 | /* Return a new face cache for frame F. */ | |
4081 | ||
4082 | static struct face_cache * | |
4083 | make_face_cache (f) | |
4084 | struct frame *f; | |
4085 | { | |
4086 | struct face_cache *c; | |
4087 | int size; | |
4088 | ||
4089 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4090 | bzero (c, sizeof *c); | |
4091 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4092 | c->buckets = (struct face **) xmalloc (size); | |
4093 | bzero (c->buckets, size); | |
4094 | c->size = 50; | |
4095 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4096 | c->f = f; | |
4097 | return c; | |
4098 | } | |
4099 | ||
4100 | ||
4101 | /* Clear out all graphics contexts for all realized faces, except for | |
4102 | the basic faces. This should be done from time to time just to avoid | |
4103 | keeping too many graphics contexts that are no longer needed. */ | |
4104 | ||
4105 | static void | |
4106 | clear_face_gcs (c) | |
4107 | struct face_cache *c; | |
4108 | { | |
4109 | if (c && FRAME_X_P (c->f)) | |
4110 | { | |
4111 | #ifdef HAVE_X_WINDOWS | |
4112 | int i; | |
4113 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4114 | { | |
4115 | struct face *face = c->faces_by_id[i]; | |
4116 | if (face && face->gc) | |
4117 | { | |
4118 | x_free_gc (c->f, face->gc); | |
4119 | face->gc = 0; | |
4120 | } | |
4121 | } | |
4122 | #endif /* HAVE_X_WINDOWS */ | |
4123 | } | |
4124 | } | |
4125 | ||
4126 | ||
4127 | /* Free all realized faces in face cache C, including basic faces. C | |
4128 | may be null. If faces are freed, make sure the frame's current | |
4129 | matrix is marked invalid, so that a display caused by an expose | |
4130 | event doesn't try to use faces we destroyed. */ | |
4131 | ||
4132 | static void | |
4133 | free_realized_faces (c) | |
4134 | struct face_cache *c; | |
4135 | { | |
4136 | if (c && c->used) | |
4137 | { | |
4138 | int i, size; | |
4139 | struct frame *f = c->f; | |
4140 | ||
4141 | for (i = 0; i < c->used; ++i) | |
4142 | { | |
4143 | free_realized_face (f, c->faces_by_id[i]); | |
4144 | c->faces_by_id[i] = NULL; | |
4145 | } | |
4146 | ||
4147 | c->used = 0; | |
4148 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4149 | bzero (c->buckets, size); | |
4150 | ||
4151 | /* Must do a thorough redisplay the next time. Mark current | |
4152 | matrices as invalid because they will reference faces freed | |
4153 | above. This function is also called when a frame is | |
4154 | destroyed. In this case, the root window of F is nil. */ | |
4155 | if (WINDOWP (f->root_window)) | |
4156 | { | |
4157 | clear_current_matrices (f); | |
4158 | ++windows_or_buffers_changed; | |
4159 | } | |
4160 | } | |
4161 | } | |
4162 | ||
4163 | ||
4164 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. | |
4165 | This is done after attributes of a named face have been changed, | |
4166 | because we can't tell which realized faces depend on that face. */ | |
4167 | ||
4168 | void | |
4169 | free_all_realized_faces (frame) | |
4170 | Lisp_Object frame; | |
4171 | { | |
4172 | if (NILP (frame)) | |
4173 | { | |
4174 | Lisp_Object rest; | |
4175 | FOR_EACH_FRAME (rest, frame) | |
4176 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4177 | } | |
4178 | else | |
4179 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4180 | } | |
4181 | ||
4182 | ||
4183 | /* Free face cache C and faces in it, including their X resources. */ | |
4184 | ||
4185 | static void | |
4186 | free_face_cache (c) | |
4187 | struct face_cache *c; | |
4188 | { | |
4189 | if (c) | |
4190 | { | |
4191 | free_realized_faces (c); | |
4192 | xfree (c->buckets); | |
4193 | xfree (c->faces_by_id); | |
4194 | xfree (c); | |
4195 | } | |
4196 | } | |
4197 | ||
4198 | ||
4199 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
4200 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
4201 | collision list of the face hash table of C. This is done because | |
4202 | otherwise lookup_face would find FACE for every charset, even if | |
4203 | faces with the same attributes but for specific charsets exist. */ | |
4204 | ||
4205 | static void | |
4206 | cache_face (c, face, hash) | |
4207 | struct face_cache *c; | |
4208 | struct face *face; | |
4209 | unsigned hash; | |
4210 | { | |
4211 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4212 | ||
4213 | face->hash = hash; | |
4214 | ||
4215 | if (face->fontset >= 0) | |
4216 | { | |
4217 | struct face *last = c->buckets[i]; | |
4218 | if (last) | |
4219 | { | |
4220 | while (last->next) | |
4221 | last = last->next; | |
4222 | last->next = face; | |
4223 | face->prev = last; | |
4224 | face->next = NULL; | |
4225 | } | |
4226 | else | |
4227 | { | |
4228 | c->buckets[i] = face; | |
4229 | face->prev = face->next = NULL; | |
4230 | } | |
4231 | } | |
4232 | else | |
4233 | { | |
4234 | face->prev = NULL; | |
4235 | face->next = c->buckets[i]; | |
4236 | if (face->next) | |
4237 | face->next->prev = face; | |
4238 | c->buckets[i] = face; | |
4239 | } | |
4240 | ||
4241 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4242 | slot as FACE->id. */ | |
4243 | for (i = 0; i < c->used; ++i) | |
4244 | if (c->faces_by_id[i] == NULL) | |
4245 | break; | |
4246 | face->id = i; | |
4247 | ||
4248 | /* Maybe enlarge C->faces_by_id. */ | |
4249 | if (i == c->used && c->used == c->size) | |
4250 | { | |
4251 | int new_size = 2 * c->size; | |
4252 | int sz = new_size * sizeof *c->faces_by_id; | |
4253 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4254 | c->size = new_size; | |
4255 | } | |
4256 | ||
4257 | #if GLYPH_DEBUG | |
4258 | /* Check that FACE got a unique id. */ | |
4259 | { | |
4260 | int j, n; | |
4261 | struct face *face; | |
4262 | ||
4263 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4264 | for (face = c->buckets[j]; face; face = face->next) | |
4265 | if (face->id == i) | |
4266 | ++n; | |
4267 | ||
4268 | xassert (n == 1); | |
4269 | } | |
4270 | #endif /* GLYPH_DEBUG */ | |
4271 | ||
4272 | c->faces_by_id[i] = face; | |
4273 | if (i == c->used) | |
4274 | ++c->used; | |
4275 | } | |
4276 | ||
4277 | ||
4278 | /* Remove face FACE from cache C. */ | |
4279 | ||
4280 | static void | |
4281 | uncache_face (c, face) | |
4282 | struct face_cache *c; | |
4283 | struct face *face; | |
4284 | { | |
4285 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
4286 | ||
4287 | if (face->prev) | |
4288 | face->prev->next = face->next; | |
4289 | else | |
4290 | c->buckets[i] = face->next; | |
4291 | ||
4292 | if (face->next) | |
4293 | face->next->prev = face->prev; | |
4294 | ||
4295 | c->faces_by_id[face->id] = NULL; | |
4296 | if (face->id == c->used) | |
4297 | --c->used; | |
4298 | } | |
4299 | ||
4300 | ||
4301 | /* Look up a realized face with face attributes ATTR in the face cache | |
4302 | of frame F. The face will be used to display characters of | |
4303 | CHARSET. CHARSET < 0 means the face will be used to display | |
4304 | unibyte text. The value of face-default-registry is used to choose | |
4305 | a font for the face in that case. Value is the ID of the face | |
4306 | found. If no suitable face is found, realize a new one. */ | |
4307 | ||
4308 | INLINE int | |
4309 | lookup_face (f, attr, charset) | |
4310 | struct frame *f; | |
4311 | Lisp_Object *attr; | |
4312 | int charset; | |
4313 | { | |
4314 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
4315 | unsigned hash; | |
4316 | int i; | |
4317 | struct face *face; | |
4318 | ||
4319 | xassert (c != NULL); | |
4320 | check_lface_attrs (attr); | |
4321 | ||
4322 | /* Look up ATTR in the face cache. */ | |
4323 | hash = lface_hash (attr); | |
4324 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4325 | ||
4326 | for (face = c->buckets[i]; face; face = face->next) | |
4327 | if (face->hash == hash | |
44747bd0 | 4328 | && (!FRAME_WINDOW_P (f) |
82641697 GM |
4329 | || FACE_SUITABLE_FOR_CHARSET_P (face, charset)) |
4330 | && lface_equal_p (face->lface, attr)) | |
4331 | break; | |
4332 | ||
4333 | /* If not found, realize a new face. */ | |
4334 | if (face == NULL) | |
4335 | { | |
4336 | face = realize_face (c, attr, charset); | |
4337 | cache_face (c, face, hash); | |
4338 | } | |
4339 | ||
4340 | #if GLYPH_DEBUG | |
4341 | xassert (face == FACE_FROM_ID (f, face->id)); | |
4342 | if (FRAME_X_P (f)) | |
4343 | xassert (charset < 0 || FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
4344 | #endif /* GLYPH_DEBUG */ | |
4345 | ||
4346 | return face->id; | |
4347 | } | |
4348 | ||
4349 | ||
4350 | /* Return the face id of the realized face for named face SYMBOL on | |
4351 | frame F suitable for displaying characters from CHARSET. CHARSET < | |
4352 | 0 means unibyte text. */ | |
4353 | ||
4354 | int | |
4355 | lookup_named_face (f, symbol, charset) | |
4356 | struct frame *f; | |
4357 | Lisp_Object symbol; | |
4358 | int charset; | |
4359 | { | |
4360 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4361 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4362 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4363 | ||
4364 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4365 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4366 | merge_face_vectors (symbol_attrs, attrs); | |
4367 | return lookup_face (f, attrs, charset); | |
4368 | } | |
4369 | ||
4370 | ||
4371 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
4372 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
4373 | ||
4374 | int | |
4375 | ascii_face_of_lisp_face (f, lface_id) | |
4376 | struct frame *f; | |
4377 | int lface_id; | |
4378 | { | |
4379 | int face_id; | |
4380 | ||
4381 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) | |
4382 | { | |
4383 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
4384 | face_id = lookup_named_face (f, face_name, CHARSET_ASCII); | |
4385 | } | |
4386 | else | |
4387 | face_id = -1; | |
4388 | ||
4389 | return face_id; | |
4390 | } | |
4391 | ||
4392 | ||
4393 | /* Return a face for charset ASCII that is like the face with id | |
4394 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4395 | STEPS < 0 means larger. Value is the id of the face. */ | |
4396 | ||
4397 | int | |
4398 | smaller_face (f, face_id, steps) | |
4399 | struct frame *f; | |
4400 | int face_id, steps; | |
4401 | { | |
4402 | #ifdef HAVE_X_WINDOWS | |
4403 | struct face *face; | |
4404 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4405 | int pt, last_pt, last_height; | |
4406 | int delta; | |
4407 | int new_face_id; | |
4408 | struct face *new_face; | |
4409 | ||
4410 | /* If not called for an X frame, just return the original face. */ | |
4411 | if (FRAME_TERMCAP_P (f)) | |
4412 | return face_id; | |
4413 | ||
4414 | /* Try in increments of 1/2 pt. */ | |
4415 | delta = steps < 0 ? 5 : -5; | |
4416 | steps = abs (steps); | |
4417 | ||
4418 | face = FACE_FROM_ID (f, face_id); | |
4419 | bcopy (face->lface, attrs, sizeof attrs); | |
4420 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4421 | new_face_id = face_id; | |
4422 | last_height = FONT_HEIGHT (face->font); | |
4423 | ||
4424 | while (steps | |
4425 | && pt + delta > 0 | |
4426 | /* Give up if we cannot find a font within 10pt. */ | |
4427 | && abs (last_pt - pt) < 100) | |
4428 | { | |
4429 | /* Look up a face for a slightly smaller/larger font. */ | |
4430 | pt += delta; | |
4431 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
4432 | new_face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4433 | new_face = FACE_FROM_ID (f, new_face_id); | |
4434 | ||
4435 | /* If height changes, count that as one step. */ | |
4436 | if (FONT_HEIGHT (new_face->font) != last_height) | |
4437 | { | |
4438 | --steps; | |
4439 | last_height = FONT_HEIGHT (new_face->font); | |
4440 | last_pt = pt; | |
4441 | } | |
4442 | } | |
4443 | ||
4444 | return new_face_id; | |
4445 | ||
4446 | #else /* not HAVE_X_WINDOWS */ | |
4447 | ||
4448 | return face_id; | |
4449 | ||
4450 | #endif /* not HAVE_X_WINDOWS */ | |
4451 | } | |
4452 | ||
4453 | ||
4454 | /* Return a face for charset ASCII that is like the face with id | |
4455 | FACE_ID on frame F, but has height HEIGHT. */ | |
4456 | ||
4457 | int | |
4458 | face_with_height (f, face_id, height) | |
4459 | struct frame *f; | |
4460 | int face_id; | |
4461 | int height; | |
4462 | { | |
4463 | #ifdef HAVE_X_WINDOWS | |
4464 | struct face *face; | |
4465 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4466 | ||
4467 | if (FRAME_TERMCAP_P (f) | |
4468 | || height <= 0) | |
4469 | return face_id; | |
4470 | ||
4471 | face = FACE_FROM_ID (f, face_id); | |
4472 | bcopy (face->lface, attrs, sizeof attrs); | |
4473 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
4474 | face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4475 | #endif /* HAVE_X_WINDOWS */ | |
4476 | ||
4477 | return face_id; | |
4478 | } | |
4479 | ||
44747bd0 EZ |
4480 | /* Return the face id of the realized face for named face SYMBOL on |
4481 | frame F suitable for displaying characters from CHARSET (CHARSET < | |
4482 | 0 means unibyte text), and use attributes of the face FACE_ID for | |
4483 | attributes that aren't completely specified by SYMBOL. This is | |
4484 | like lookup_named_face, except that the default attributes come | |
4485 | from FACE_ID, not from the default face. FACE_ID is assumed to | |
4486 | be already realized. */ | |
4487 | ||
4488 | int | |
4489 | lookup_derived_face (f, symbol, charset, face_id) | |
4490 | struct frame *f; | |
4491 | Lisp_Object symbol; | |
4492 | int charset; | |
4493 | int face_id; | |
4494 | { | |
4495 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4496 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4497 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
4498 | ||
4499 | if (!default_face) | |
4500 | abort (); | |
4501 | ||
4502 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4503 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4504 | merge_face_vectors (symbol_attrs, attrs); | |
4505 | return lookup_face (f, attrs, charset); | |
4506 | } | |
4507 | ||
82641697 GM |
4508 | |
4509 | \f | |
4510 | /*********************************************************************** | |
4511 | Font selection | |
4512 | ***********************************************************************/ | |
4513 | ||
4514 | DEFUN ("internal-set-font-selection-order", | |
4515 | Finternal_set_font_selection_order, | |
4516 | Sinternal_set_font_selection_order, 1, 1, 0, | |
4517 | "Set font selection order for face font selection to ORDER.\n\ | |
4518 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
4519 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
4520 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
4521 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
4522 | a suitable height, and then tries to match the font weight.\n\ | |
4523 | Value is ORDER.") | |
4524 | (order) | |
4525 | Lisp_Object order; | |
4526 | { | |
4527 | Lisp_Object list; | |
4528 | int i; | |
4529 | int indices[4]; | |
4530 | ||
4531 | CHECK_LIST (order, 0); | |
4532 | bzero (indices, sizeof indices); | |
4533 | i = 0; | |
4534 | ||
4535 | for (list = order; | |
4536 | CONSP (list) && i < DIM (indices); | |
4537 | list = XCDR (list), ++i) | |
4538 | { | |
4539 | Lisp_Object attr = XCAR (list); | |
4540 | int xlfd; | |
4541 | ||
4542 | if (EQ (attr, QCwidth)) | |
4543 | xlfd = XLFD_SWIDTH; | |
4544 | else if (EQ (attr, QCheight)) | |
4545 | xlfd = XLFD_POINT_SIZE; | |
4546 | else if (EQ (attr, QCweight)) | |
4547 | xlfd = XLFD_WEIGHT; | |
4548 | else if (EQ (attr, QCslant)) | |
4549 | xlfd = XLFD_SLANT; | |
4550 | else | |
4551 | break; | |
4552 | ||
4553 | if (indices[i] != 0) | |
4554 | break; | |
4555 | indices[i] = xlfd; | |
4556 | } | |
4557 | ||
4558 | if (!NILP (list) | |
4559 | || i != DIM (indices) | |
4560 | || indices[0] == 0 | |
4561 | || indices[1] == 0 | |
4562 | || indices[2] == 0 | |
4563 | || indices[3] == 0) | |
4564 | signal_error ("Invalid font sort order", order); | |
4565 | ||
4566 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
4567 | { | |
4568 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
4569 | free_all_realized_faces (Qnil); | |
4570 | } | |
4571 | ||
4572 | return Qnil; | |
4573 | } | |
4574 | ||
4575 | ||
4576 | DEFUN ("internal-set-alternative-font-family-alist", | |
4577 | Finternal_set_alternative_font_family_alist, | |
4578 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
4579 | "Define alternative font families to try in face font selection.\n\ | |
4580 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
4581 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
4582 | be found. Value is ALIST.") | |
4583 | (alist) | |
4584 | Lisp_Object alist; | |
4585 | { | |
4586 | CHECK_LIST (alist, 0); | |
4587 | Vface_alternative_font_family_alist = alist; | |
4588 | free_all_realized_faces (Qnil); | |
4589 | return alist; | |
4590 | } | |
4591 | ||
4592 | ||
4593 | #ifdef HAVE_X_WINDOWS | |
4594 | ||
4595 | /* Return the X registry and encoding of font name FONT_NAME on frame F. | |
4596 | Value is nil if not successful. */ | |
4597 | ||
4598 | static Lisp_Object | |
4599 | deduce_unibyte_registry (f, font_name) | |
4600 | struct frame *f; | |
4601 | char *font_name; | |
4602 | { | |
4603 | struct font_name font; | |
4604 | Lisp_Object registry = Qnil; | |
4605 | ||
4606 | font.name = STRDUPA (font_name); | |
4607 | if (split_font_name (f, &font, 0)) | |
4608 | { | |
4609 | char *buffer; | |
4610 | ||
4611 | /* Extract registry and encoding. */ | |
4612 | buffer = (char *) alloca (strlen (font.fields[XLFD_REGISTRY]) | |
4613 | + strlen (font.fields[XLFD_ENCODING]) | |
4614 | + 10); | |
4615 | strcpy (buffer, font.fields[XLFD_REGISTRY]); | |
4616 | strcat (buffer, "-"); | |
4617 | strcat (buffer, font.fields[XLFD_ENCODING]); | |
4618 | registry = build_string (buffer); | |
4619 | } | |
4620 | ||
4621 | return registry; | |
4622 | } | |
4623 | ||
4624 | ||
4625 | /* Value is non-zero if FONT is the name of a scalable font. The | |
4626 | X11R6 XLFD spec says that point size, pixel size, and average width | |
4627 | are zero for scalable fonts. Intlfonts contain at least one | |
4628 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
4629 | just test average width. */ | |
4630 | ||
4631 | static int | |
4632 | font_scalable_p (font) | |
4633 | struct font_name *font; | |
4634 | { | |
4635 | char *s = font->fields[XLFD_AVGWIDTH]; | |
4636 | return *s == '0' && *(s + 1) == '\0'; | |
4637 | } | |
4638 | ||
4639 | ||
4640 | /* Value is non-zero if FONT1 is a better match for font attributes | |
4641 | VALUES than FONT2. VALUES is an array of face attribute values in | |
4642 | font sort order. COMPARE_PT_P zero means don't compare point | |
4643 | sizes. */ | |
4644 | ||
4645 | static int | |
4646 | better_font_p (values, font1, font2, compare_pt_p) | |
4647 | int *values; | |
4648 | struct font_name *font1, *font2; | |
4649 | int compare_pt_p; | |
4650 | { | |
4651 | int i; | |
4652 | ||
4653 | for (i = 0; i < 4; ++i) | |
4654 | { | |
4655 | int xlfd_idx = font_sort_order[i]; | |
4656 | ||
4657 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
4658 | { | |
4659 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
4660 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
4661 | ||
4662 | if (delta1 > delta2) | |
4663 | return 0; | |
4664 | else if (delta1 < delta2) | |
4665 | return 1; | |
4666 | else | |
4667 | { | |
4668 | /* The difference may be equal because, e.g., the face | |
4669 | specifies `italic' but we have only `regular' and | |
4670 | `oblique'. Prefer `oblique' in this case. */ | |
4671 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
4672 | && font1->numeric[xlfd_idx] > values[i] | |
4673 | && font2->numeric[xlfd_idx] < values[i]) | |
4674 | return 1; | |
4675 | } | |
4676 | } | |
4677 | } | |
4678 | ||
4679 | return 0; | |
4680 | } | |
4681 | ||
4682 | ||
4683 | #if SCALABLE_FONTS | |
4684 | ||
4685 | /* Value is non-zero if FONT is an exact match for face attributes in | |
4686 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
4687 | sort order. */ | |
4688 | ||
4689 | static int | |
4690 | exact_face_match_p (specified, font) | |
4691 | int *specified; | |
4692 | struct font_name *font; | |
4693 | { | |
4694 | int i; | |
4695 | ||
4696 | for (i = 0; i < 4; ++i) | |
4697 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
4698 | break; | |
4699 | ||
4700 | return i == 4; | |
4701 | } | |
4702 | ||
4703 | ||
4704 | /* Value is the name of a scaled font, generated from scalable font | |
4705 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
4706 | Value is allocated from heap. */ | |
4707 | ||
4708 | static char * | |
4709 | build_scalable_font_name (f, font, specified_pt) | |
4710 | struct frame *f; | |
4711 | struct font_name *font; | |
4712 | int specified_pt; | |
4713 | { | |
4714 | char point_size[20], pixel_size[20]; | |
4715 | int pixel_value; | |
4716 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
4717 | double pt; | |
4718 | ||
4719 | /* If scalable font is for a specific resolution, compute | |
4720 | the point size we must specify from the resolution of | |
4721 | the display and the specified resolution of the font. */ | |
4722 | if (font->numeric[XLFD_RESY] != 0) | |
4723 | { | |
4724 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
4725 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
4726 | } | |
4727 | else | |
4728 | { | |
4729 | pt = specified_pt; | |
4730 | pixel_value = resy / 720.0 * pt; | |
4731 | } | |
4732 | ||
4733 | /* Set point size of the font. */ | |
4734 | sprintf (point_size, "%d", (int) pt); | |
4735 | font->fields[XLFD_POINT_SIZE] = point_size; | |
4736 | font->numeric[XLFD_POINT_SIZE] = pt; | |
4737 | ||
4738 | /* Set pixel size. */ | |
4739 | sprintf (pixel_size, "%d", pixel_value); | |
4740 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
4741 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
4742 | ||
4743 | /* If font doesn't specify its resolution, use the | |
4744 | resolution of the display. */ | |
4745 | if (font->numeric[XLFD_RESY] == 0) | |
4746 | { | |
4747 | char buffer[20]; | |
4748 | sprintf (buffer, "%d", (int) resy); | |
4749 | font->fields[XLFD_RESY] = buffer; | |
4750 | font->numeric[XLFD_RESY] = resy; | |
4751 | } | |
4752 | ||
4753 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) | |
4754 | { | |
4755 | char buffer[20]; | |
4756 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
4757 | sprintf (buffer, "%d", resx); | |
4758 | font->fields[XLFD_RESX] = buffer; | |
4759 | font->numeric[XLFD_RESX] = resx; | |
4760 | } | |
4761 | ||
4762 | return build_font_name (font); | |
4763 | } | |
4764 | ||
4765 | ||
4766 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
4767 | can't run a Lisp function here since this function may be called | |
4768 | with input blocked. */ | |
4769 | ||
4770 | static int | |
4771 | may_use_scalable_font_p (font, name) | |
4772 | struct font_name *font; | |
4773 | char *name; | |
4774 | { | |
4775 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
4776 | return 1; | |
4777 | else if (CONSP (Vscalable_fonts_allowed)) | |
4778 | { | |
4779 | Lisp_Object tail, regexp; | |
4780 | ||
4781 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) | |
4782 | { | |
4783 | regexp = XCAR (tail); | |
4784 | if (STRINGP (regexp) | |
4785 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
4786 | return 1; | |
4787 | } | |
4788 | } | |
4789 | ||
4790 | return 0; | |
4791 | } | |
4792 | ||
4793 | #endif /* SCALABLE_FONTS != 0 */ | |
4794 | ||
4795 | ||
4796 | /* Return the name of the best matching font for face attributes | |
4797 | ATTRS in the array of font_name structures FONTS which contains | |
4798 | NFONTS elements. Value is a font name which is allocated from | |
4799 | the heap. FONTS is freed by this function. */ | |
4800 | ||
4801 | static char * | |
4802 | best_matching_font (f, attrs, fonts, nfonts) | |
4803 | struct frame *f; | |
4804 | Lisp_Object *attrs; | |
4805 | struct font_name *fonts; | |
4806 | int nfonts; | |
4807 | { | |
4808 | char *font_name; | |
4809 | struct font_name *best; | |
4810 | int i, pt; | |
4811 | int specified[4]; | |
4812 | int exact_p; | |
4813 | ||
4814 | if (nfonts == 0) | |
4815 | return NULL; | |
4816 | ||
4817 | /* Make specified font attributes available in `specified', | |
4818 | indexed by sort order. */ | |
4819 | for (i = 0; i < DIM (font_sort_order); ++i) | |
4820 | { | |
4821 | int xlfd_idx = font_sort_order[i]; | |
4822 | ||
4823 | if (xlfd_idx == XLFD_SWIDTH) | |
4824 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
4825 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
4826 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4827 | else if (xlfd_idx == XLFD_WEIGHT) | |
4828 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
4829 | else if (xlfd_idx == XLFD_SLANT) | |
4830 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
4831 | else | |
4832 | abort (); | |
4833 | } | |
4834 | ||
4835 | #if SCALABLE_FONTS | |
4836 | ||
4837 | /* Set to 1 */ | |
4838 | exact_p = 0; | |
4839 | ||
4840 | /* Start with the first non-scalable font in the list. */ | |
4841 | for (i = 0; i < nfonts; ++i) | |
4842 | if (!font_scalable_p (fonts + i)) | |
4843 | break; | |
4844 | ||
4845 | /* Find the best match among the non-scalable fonts. */ | |
4846 | if (i < nfonts) | |
4847 | { | |
4848 | best = fonts + i; | |
4849 | ||
4850 | for (i = 1; i < nfonts; ++i) | |
4851 | if (!font_scalable_p (fonts + i) | |
4852 | && better_font_p (specified, fonts + i, best, 1)) | |
4853 | { | |
4854 | best = fonts + i; | |
4855 | ||
4856 | exact_p = exact_face_match_p (specified, best); | |
4857 | if (exact_p) | |
4858 | break; | |
4859 | } | |
4860 | ||
4861 | } | |
4862 | else | |
4863 | best = NULL; | |
4864 | ||
4865 | /* Unless we found an exact match among non-scalable fonts, see if | |
4866 | we can find a better match among scalable fonts. */ | |
4867 | if (!exact_p) | |
4868 | { | |
4869 | /* A scalable font is better if | |
4870 | ||
4871 | 1. its weight, slant, swidth attributes are better, or. | |
4872 | ||
4873 | 2. the best non-scalable font doesn't have the required | |
4874 | point size, and the scalable fonts weight, slant, swidth | |
4875 | isn't worse. */ | |
4876 | ||
4877 | int non_scalable_has_exact_height_p; | |
4878 | ||
4879 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
4880 | non_scalable_has_exact_height_p = 1; | |
4881 | else | |
4882 | non_scalable_has_exact_height_p = 0; | |
4883 | ||
4884 | for (i = 0; i < nfonts; ++i) | |
4885 | if (font_scalable_p (fonts + i)) | |
4886 | { | |
4887 | if (best == NULL | |
4888 | || better_font_p (specified, fonts + i, best, 0) | |
4889 | || (!non_scalable_has_exact_height_p | |
4890 | && !better_font_p (specified, best, fonts + i, 0))) | |
4891 | best = fonts + i; | |
4892 | } | |
4893 | } | |
4894 | ||
4895 | if (font_scalable_p (best)) | |
4896 | font_name = build_scalable_font_name (f, best, pt); | |
4897 | else | |
4898 | font_name = build_font_name (best); | |
4899 | ||
4900 | #else /* !SCALABLE_FONTS */ | |
4901 | ||
4902 | /* Find the best non-scalable font. */ | |
4903 | best = fonts; | |
4904 | ||
4905 | for (i = 1; i < nfonts; ++i) | |
4906 | { | |
4907 | xassert (!font_scalable_p (fonts + i)); | |
4908 | if (better_font_p (specified, fonts + i, best, 1)) | |
4909 | best = fonts + i; | |
4910 | } | |
4911 | ||
4912 | font_name = build_font_name (best); | |
4913 | ||
4914 | #endif /* !SCALABLE_FONTS */ | |
4915 | ||
4916 | /* Free font_name structures. */ | |
4917 | free_font_names (fonts, nfonts); | |
4918 | ||
4919 | return font_name; | |
4920 | } | |
4921 | ||
4922 | ||
4923 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
4924 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
4925 | of font_name structures for the fonts matched. Value is the number | |
4926 | of fonts found. */ | |
4927 | ||
4928 | static int | |
4929 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
4930 | struct frame *f; | |
4931 | Lisp_Object *attrs; | |
4932 | char *pattern, *family, *registry; | |
4933 | struct font_name **fonts; | |
4934 | { | |
4935 | int nfonts; | |
4936 | ||
4937 | if (family == NULL) | |
4938 | family = LSTRDUPA (attrs[LFACE_FAMILY_INDEX]); | |
4939 | ||
4940 | nfonts = font_list (f, pattern, family, registry, fonts); | |
4941 | ||
4942 | if (nfonts == 0) | |
4943 | { | |
4944 | Lisp_Object alter; | |
4945 | ||
4946 | /* Try alternative font families from | |
4947 | Vface_alternative_font_family_alist. */ | |
4948 | alter = Fassoc (build_string (family), | |
4949 | Vface_alternative_font_family_alist); | |
4950 | if (CONSP (alter)) | |
4951 | for (alter = XCDR (alter); | |
4952 | CONSP (alter) && nfonts == 0; | |
4953 | alter = XCDR (alter)) | |
4954 | { | |
4955 | if (STRINGP (XCAR (alter))) | |
4956 | { | |
4957 | family = LSTRDUPA (XCAR (alter)); | |
4958 | nfonts = font_list (f, NULL, family, registry, fonts); | |
4959 | } | |
4960 | } | |
4961 | ||
4962 | /* Try font family of the default face or "fixed". */ | |
4963 | if (nfonts == 0) | |
4964 | { | |
4965 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4966 | if (dflt) | |
4967 | family = LSTRDUPA (dflt->lface[LFACE_FAMILY_INDEX]); | |
4968 | else | |
4969 | family = "fixed"; | |
4970 | nfonts = font_list (f, NULL, family, registry, fonts); | |
4971 | } | |
4972 | ||
4973 | /* Try any family with the given registry. */ | |
4974 | if (nfonts == 0) | |
4975 | nfonts = font_list (f, NULL, "*", registry, fonts); | |
4976 | } | |
4977 | ||
4978 | return nfonts; | |
4979 | } | |
4980 | ||
4981 | ||
4982 | /* Return the registry and encoding pattern that fonts for CHARSET | |
4983 | should match. Value is allocated from the heap. */ | |
4984 | ||
4985 | char * | |
4986 | x_charset_registry (charset) | |
4987 | int charset; | |
4988 | { | |
4989 | Lisp_Object prop, charset_plist; | |
4990 | char *registry; | |
4991 | ||
4992 | /* Get registry and encoding from the charset's plist. */ | |
4993 | charset_plist = CHARSET_TABLE_INFO (charset, CHARSET_PLIST_IDX); | |
4994 | prop = Fplist_get (charset_plist, Qx_charset_registry); | |
4995 | ||
4996 | if (STRINGP (prop)) | |
4997 | { | |
4998 | if (index (XSTRING (prop)->data, '-')) | |
4999 | registry = xstrdup (XSTRING (prop)->data); | |
5000 | else | |
5001 | { | |
5002 | /* If registry doesn't contain a `-', make it a pattern. */ | |
5003 | registry = (char *) xmalloc (STRING_BYTES (XSTRING (prop)) + 5); | |
5004 | strcpy (registry, XSTRING (prop)->data); | |
5005 | strcat (registry, "*-*"); | |
5006 | } | |
5007 | } | |
5008 | else if (STRINGP (Vface_default_registry)) | |
5009 | registry = xstrdup (XSTRING (Vface_default_registry)->data); | |
5010 | else | |
5011 | registry = xstrdup ("iso8859-1"); | |
5012 | ||
5013 | return registry; | |
5014 | } | |
5015 | ||
5016 | ||
5017 | /* Return the fontset id of the fontset name or alias name given by | |
5018 | the family attribute of ATTRS on frame F. Value is -1 if the | |
5019 | family attribute of ATTRS doesn't name a fontset. */ | |
5020 | ||
5021 | static int | |
5022 | face_fontset (f, attrs) | |
5023 | struct frame *f; | |
5024 | Lisp_Object *attrs; | |
5025 | { | |
5026 | Lisp_Object name = attrs[LFACE_FAMILY_INDEX]; | |
5027 | int fontset; | |
5028 | ||
5029 | name = Fquery_fontset (name, Qnil); | |
5030 | if (NILP (name)) | |
5031 | fontset = -1; | |
5032 | else | |
5033 | fontset = fs_query_fontset (f, XSTRING (name)->data); | |
5034 | ||
5035 | return fontset; | |
5036 | } | |
5037 | ||
5038 | ||
5039 | /* Get the font to use for the face realizing the fully-specified Lisp | |
5040 | face ATTRS for charset CHARSET on frame F. CHARSET < 0 means | |
5041 | unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use | |
5042 | in this case. Value is the font name which is allocated from the | |
5043 | heap (which means that it must be freed eventually). */ | |
5044 | ||
5045 | static char * | |
5046 | choose_face_font (f, attrs, charset, unibyte_registry) | |
5047 | struct frame *f; | |
5048 | Lisp_Object *attrs; | |
5049 | int charset; | |
5050 | Lisp_Object unibyte_registry; | |
5051 | { | |
5052 | struct font_name *fonts; | |
5053 | int nfonts; | |
5054 | char *registry; | |
5055 | ||
5056 | /* ATTRS must be fully-specified. */ | |
5057 | xassert (lface_fully_specified_p (attrs)); | |
5058 | ||
5059 | if (STRINGP (unibyte_registry)) | |
5060 | registry = xstrdup (XSTRING (unibyte_registry)->data); | |
5061 | else | |
5062 | registry = x_charset_registry (charset); | |
5063 | ||
5064 | nfonts = try_font_list (f, attrs, NULL, NULL, registry, &fonts); | |
5065 | xfree (registry); | |
5066 | return best_matching_font (f, attrs, fonts, nfonts); | |
5067 | } | |
5068 | ||
5069 | ||
5070 | /* Choose a font to use on frame F to display CHARSET using FONTSET | |
5071 | with Lisp face attributes specified by ATTRS. CHARSET may be any | |
5072 | valid charset except CHARSET_COMPOSITION. CHARSET < 0 means | |
5073 | unibyte text. If the fontset doesn't contain a font pattern for | |
5074 | charset, use the pattern for CHARSET_ASCII. Value is the font name | |
5075 | which is allocated from the heap and must be freed by the caller. */ | |
5076 | ||
5077 | static char * | |
5078 | choose_face_fontset_font (f, attrs, fontset, charset) | |
5079 | struct frame *f; | |
5080 | Lisp_Object *attrs; | |
5081 | int fontset, charset; | |
5082 | { | |
5083 | char *pattern; | |
5084 | char *font_name = NULL; | |
5085 | struct fontset_info *fontset_info; | |
5086 | struct font_name *fonts; | |
5087 | int nfonts; | |
5088 | ||
5089 | xassert (charset != CHARSET_COMPOSITION); | |
5090 | xassert (fontset >= 0 && fontset < FRAME_FONTSET_DATA (f)->n_fontsets); | |
5091 | ||
5092 | /* For unibyte text, use the ASCII font of the fontset. Using the | |
5093 | ASCII font seems to be the most reasonable thing we can do in | |
5094 | this case. */ | |
5095 | if (charset < 0) | |
5096 | charset = CHARSET_ASCII; | |
5097 | ||
5098 | /* Get the font name pattern to use for CHARSET from the fontset. */ | |
5099 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
5100 | pattern = fontset_info->fontname[charset]; | |
5101 | if (!pattern) | |
5102 | pattern = fontset_info->fontname[CHARSET_ASCII]; | |
5103 | xassert (pattern); | |
5104 | ||
5105 | /* Get a list of fonts matching that pattern and choose the | |
5106 | best match for the specified face attributes from it. */ | |
5107 | nfonts = try_font_list (f, attrs, pattern, NULL, NULL, &fonts); | |
5108 | font_name = best_matching_font (f, attrs, fonts, nfonts); | |
5109 | return font_name; | |
5110 | } | |
5111 | ||
5112 | #endif /* HAVE_X_WINDOWS */ | |
5113 | ||
5114 | ||
5115 | \f | |
5116 | /*********************************************************************** | |
5117 | Face Realization | |
5118 | ***********************************************************************/ | |
5119 | ||
5120 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5121 | of F don't contain enough information needed to realize the default | |
5122 | face. */ | |
5123 | ||
5124 | static int | |
5125 | realize_basic_faces (f) | |
5126 | struct frame *f; | |
5127 | { | |
5128 | int success_p = 0; | |
5129 | ||
5130 | if (realize_default_face (f)) | |
5131 | { | |
5132 | realize_named_face (f, Qmodeline, MODE_LINE_FACE_ID); | |
5133 | realize_named_face (f, Qtoolbar, TOOLBAR_FACE_ID); | |
5134 | realize_named_face (f, Qbitmap_area, BITMAP_AREA_FACE_ID); | |
5135 | realize_named_face (f, Qtop_line, TOP_LINE_FACE_ID); | |
5136 | success_p = 1; | |
5137 | } | |
5138 | ||
5139 | return success_p; | |
5140 | } | |
5141 | ||
5142 | ||
5143 | /* Realize the default face on frame F. If the face is not fully | |
5144 | specified, make it fully-specified. Attributes of the default face | |
5145 | that are not explicitly specified are taken from frame parameters. */ | |
5146 | ||
5147 | static int | |
5148 | realize_default_face (f) | |
5149 | struct frame *f; | |
5150 | { | |
5151 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5152 | Lisp_Object lface; | |
5153 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5154 | Lisp_Object unibyte_registry; | |
5155 | Lisp_Object frame_font; | |
5156 | struct face *face; | |
5157 | int fontset; | |
5158 | ||
5159 | /* If the `default' face is not yet known, create it. */ | |
5160 | lface = lface_from_face_name (f, Qdefault, 0); | |
5161 | if (NILP (lface)) | |
5162 | { | |
5163 | Lisp_Object frame; | |
5164 | XSETFRAME (frame, f); | |
5165 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5166 | } | |
5167 | ||
5168 | #ifdef HAVE_X_WINDOWS | |
5169 | if (FRAME_X_P (f)) | |
5170 | { | |
5171 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5172 | frame_font = Fassq (Qfont, f->param_alist); | |
5173 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5174 | frame_font = XCDR (frame_font); | |
5175 | ||
5176 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
5177 | if (fontset >= 0) | |
5178 | { | |
5179 | /* If frame_font is a fontset name, don't use that for | |
5180 | determining font-related attributes of the default face | |
5181 | because it is just an artificial name. Use the ASCII font of | |
5182 | the fontset, instead. */ | |
5183 | struct font_info *font_info; | |
5184 | struct font_name font; | |
5185 | ||
5186 | BLOCK_INPUT; | |
5187 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
5188 | NULL, fontset); | |
5189 | UNBLOCK_INPUT; | |
5190 | ||
5191 | /* Set weight etc. from the ASCII font. */ | |
5192 | if (!set_lface_from_font_name (f, lface, font_info->full_name, 0)) | |
5193 | return 0; | |
5194 | ||
5195 | /* Remember registry and encoding of the frame font. */ | |
5196 | unibyte_registry = deduce_unibyte_registry (f, font_info->full_name); | |
5197 | if (STRINGP (unibyte_registry)) | |
5198 | Vface_default_registry = unibyte_registry; | |
5199 | else | |
5200 | Vface_default_registry = build_string ("iso8859-1"); | |
5201 | ||
5202 | /* But set the family to the fontset alias name. Implementation | |
5203 | note: When a font is passed to Emacs via `-fn FONT', a | |
5204 | fontset is created in `x-win.el' whose name ends in | |
5205 | `fontset-startup'. This fontset has an alias name that is | |
5206 | equal to frame_font. */ | |
5207 | xassert (STRINGP (frame_font)); | |
5208 | font.name = LSTRDUPA (frame_font); | |
5209 | ||
5210 | if (!split_font_name (f, &font, 1) | |
5211 | || xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0 | |
5212 | || xstricmp (font.fields[XLFD_ENCODING], "startup") != 0) | |
5213 | LFACE_FAMILY (lface) = frame_font; | |
5214 | } | |
5215 | else | |
5216 | { | |
5217 | /* Frame parameters contain a real font. Fill default face | |
5218 | attributes from that font. */ | |
5219 | if (!set_lface_from_font_name (f, lface, | |
5220 | XSTRING (frame_font)->data, 0)) | |
5221 | return 0; | |
5222 | ||
5223 | /* Remember registry and encoding of the frame font. */ | |
5224 | unibyte_registry | |
5225 | = deduce_unibyte_registry (f, XSTRING (frame_font)->data); | |
5226 | if (STRINGP (unibyte_registry)) | |
5227 | Vface_default_registry = unibyte_registry; | |
5228 | else | |
5229 | Vface_default_registry = build_string ("iso8859-1"); | |
5230 | } | |
5231 | } | |
5232 | #endif /* HAVE_X_WINDOWS */ | |
5233 | ||
44747bd0 | 5234 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5235 | { |
5236 | LFACE_FAMILY (lface) = build_string ("default"); | |
5237 | LFACE_SWIDTH (lface) = Qnormal; | |
5238 | LFACE_HEIGHT (lface) = make_number (1); | |
5239 | LFACE_WEIGHT (lface) = Qnormal; | |
5240 | LFACE_SLANT (lface) = Qnormal; | |
5241 | } | |
5242 | ||
5243 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) | |
5244 | LFACE_UNDERLINE (lface) = Qnil; | |
5245 | ||
5246 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) | |
5247 | LFACE_OVERLINE (lface) = Qnil; | |
5248 | ||
5249 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) | |
5250 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
5251 | ||
5252 | if (UNSPECIFIEDP (LFACE_BOX (lface))) | |
5253 | LFACE_BOX (lface) = Qnil; | |
5254 | ||
5255 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) | |
5256 | LFACE_INVERSE (lface) = Qnil; | |
5257 | ||
5258 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
5259 | { | |
5260 | /* This function is called so early that colors are not yet | |
5261 | set in the frame parameter list. */ | |
5262 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
5263 | ||
5264 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5265 | LFACE_FOREGROUND (lface) = XCDR (color); | |
5266 | else if (FRAME_X_P (f)) | |
5267 | return 0; | |
44747bd0 | 5268 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
82641697 GM |
5269 | /* Frame parameters for terminal frames usually don't contain |
5270 | a color. Use an empty string to indicate that the face | |
5271 | should use the (unknown) default color of the terminal. */ | |
5272 | LFACE_FOREGROUND (lface) = build_string (""); | |
5273 | else | |
5274 | abort (); | |
5275 | } | |
5276 | ||
5277 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
5278 | { | |
5279 | /* This function is called so early that colors are not yet | |
5280 | set in the frame parameter list. */ | |
5281 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5282 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5283 | LFACE_BACKGROUND (lface) = XCDR (color); | |
5284 | else if (FRAME_X_P (f)) | |
5285 | return 0; | |
44747bd0 | 5286 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
82641697 GM |
5287 | /* Frame parameters for terminal frames usually don't contain |
5288 | a color. Use an empty string to indicate that the face | |
5289 | should use the (unknown) default color of the terminal. */ | |
5290 | LFACE_BACKGROUND (lface) = build_string (""); | |
5291 | else | |
5292 | abort (); | |
5293 | } | |
5294 | ||
5295 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) | |
5296 | LFACE_STIPPLE (lface) = Qnil; | |
5297 | ||
5298 | /* Realize the face; it must be fully-specified now. */ | |
5299 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5300 | check_lface (lface); | |
5301 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
5302 | face = realize_face (c, attrs, CHARSET_ASCII); | |
5303 | ||
5304 | /* Remove the former default face. */ | |
5305 | if (c->used > DEFAULT_FACE_ID) | |
5306 | { | |
5307 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5308 | uncache_face (c, default_face); | |
5309 | free_realized_face (f, default_face); | |
5310 | } | |
5311 | ||
5312 | /* Insert the new default face. */ | |
5313 | cache_face (c, face, lface_hash (attrs)); | |
5314 | xassert (face->id == DEFAULT_FACE_ID); | |
5315 | return 1; | |
5316 | } | |
5317 | ||
5318 | ||
5319 | /* Realize basic faces other than the default face in face cache C. | |
5320 | SYMBOL is the face name, ID is the face id the realized face must | |
5321 | have. The default face must have been realized already. */ | |
5322 | ||
5323 | static void | |
5324 | realize_named_face (f, symbol, id) | |
5325 | struct frame *f; | |
5326 | Lisp_Object symbol; | |
5327 | int id; | |
5328 | { | |
5329 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5330 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
5331 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5332 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5333 | struct face *new_face; | |
5334 | ||
5335 | /* The default face must exist and be fully specified. */ | |
5336 | get_lface_attributes (f, Qdefault, attrs, 1); | |
5337 | check_lface_attrs (attrs); | |
5338 | xassert (lface_fully_specified_p (attrs)); | |
5339 | ||
5340 | /* If SYMBOL isn't know as a face, create it. */ | |
5341 | if (NILP (lface)) | |
5342 | { | |
5343 | Lisp_Object frame; | |
5344 | XSETFRAME (frame, f); | |
5345 | lface = Finternal_make_lisp_face (symbol, frame); | |
5346 | } | |
5347 | ||
5348 | /* Merge SYMBOL's face with the default face. */ | |
5349 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5350 | merge_face_vectors (symbol_attrs, attrs); | |
5351 | ||
5352 | /* Realize the face. */ | |
5353 | new_face = realize_face (c, attrs, CHARSET_ASCII); | |
5354 | ||
5355 | /* Remove the former face. */ | |
5356 | if (c->used > id) | |
5357 | { | |
5358 | struct face *old_face = c->faces_by_id[id]; | |
5359 | uncache_face (c, old_face); | |
5360 | free_realized_face (f, old_face); | |
5361 | } | |
5362 | ||
5363 | /* Insert the new face. */ | |
5364 | cache_face (c, new_face, lface_hash (attrs)); | |
5365 | xassert (new_face->id == id); | |
5366 | } | |
5367 | ||
5368 | ||
5369 | /* Realize the fully-specified face with attributes ATTRS in face | |
5370 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5371 | 0. Value is a pointer to the newly created realized face. */ | |
5372 | ||
5373 | static struct face * | |
5374 | realize_face (c, attrs, charset) | |
5375 | struct face_cache *c; | |
5376 | Lisp_Object *attrs; | |
5377 | int charset; | |
5378 | { | |
5379 | struct face *face; | |
5380 | ||
5381 | /* LFACE must be fully specified. */ | |
5382 | xassert (c != NULL); | |
5383 | check_lface_attrs (attrs); | |
5384 | ||
5385 | if (FRAME_X_P (c->f)) | |
5386 | face = realize_x_face (c, attrs, charset); | |
44747bd0 | 5387 | else if (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)) |
82641697 GM |
5388 | face = realize_tty_face (c, attrs, charset); |
5389 | else | |
5390 | abort (); | |
5391 | ||
5392 | return face; | |
5393 | } | |
5394 | ||
5395 | ||
5396 | /* Realize the fully-specified face with attributes ATTRS in face | |
5397 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5398 | 0. Do it for X frame C->f. Value is a pointer to the newly | |
5399 | created realized face. */ | |
5400 | ||
5401 | static struct face * | |
5402 | realize_x_face (c, attrs, charset) | |
5403 | struct face_cache *c; | |
5404 | Lisp_Object *attrs; | |
5405 | int charset; | |
5406 | { | |
5407 | #ifdef HAVE_X_WINDOWS | |
5408 | struct face *face, *default_face; | |
5409 | struct frame *f = c->f; | |
5410 | Lisp_Object stipple, overline, strike_through, box; | |
5411 | Lisp_Object unibyte_registry; | |
5412 | struct gcpro gcpro1; | |
5413 | ||
5414 | xassert (FRAME_X_P (f)); | |
5415 | ||
5416 | /* If realizing a face for use in unibyte text, get the X registry | |
5417 | and encoding to use from Vface_default_registry. */ | |
5418 | if (charset < 0) | |
5419 | unibyte_registry = (STRINGP (Vface_default_registry) | |
5420 | ? Vface_default_registry | |
5421 | : build_string ("iso8859-1")); | |
5422 | else | |
5423 | unibyte_registry = Qnil; | |
5424 | GCPRO1 (unibyte_registry); | |
5425 | ||
5426 | /* Allocate a new realized face. */ | |
5427 | face = make_realized_face (attrs, charset, unibyte_registry); | |
5428 | ||
5429 | /* Determine the font to use. Most of the time, the font will be | |
5430 | the same as the font of the default face, so try that first. */ | |
5431 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5432 | if (default_face | |
5433 | && FACE_SUITABLE_FOR_CHARSET_P (default_face, charset) | |
5434 | && lface_same_font_attributes_p (default_face->lface, attrs)) | |
5435 | { | |
5436 | face->font = default_face->font; | |
5437 | face->fontset = default_face->fontset; | |
5438 | face->font_info_id = default_face->font_info_id; | |
5439 | face->font_name = default_face->font_name; | |
5440 | face->registry = default_face->registry; | |
5441 | } | |
5442 | else if (charset >= 0) | |
5443 | { | |
5444 | /* For all charsets except CHARSET_COMPOSITION, we use our own | |
5445 | font selection functions to choose a best matching font for | |
5446 | the specified face attributes. If the face specifies a | |
5447 | fontset alias name, the fontset determines the font name | |
5448 | pattern, otherwise we construct a font pattern from face | |
5449 | attributes and charset. | |
5450 | ||
5451 | If charset is CHARSET_COMPOSITION, we always construct a face | |
5452 | with a fontset, even if the face doesn't specify a fontset alias | |
5453 | (we use fontset-standard in that case). When the composite | |
5454 | character is displayed in xterm.c, a suitable concrete font is | |
5455 | loaded in x_get_char_font_and_encoding. */ | |
5456 | ||
5457 | char *font_name = NULL; | |
5458 | int fontset = face_fontset (f, attrs); | |
5459 | ||
5460 | if (charset == CHARSET_COMPOSITION) | |
5461 | fontset = max (0, fontset); | |
5462 | else if (fontset < 0) | |
5463 | font_name = choose_face_font (f, attrs, charset, Qnil); | |
5464 | else | |
5465 | { | |
5466 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5467 | fontset = -1; | |
5468 | } | |
5469 | ||
5470 | load_face_font_or_fontset (f, face, font_name, fontset); | |
5471 | xfree (font_name); | |
5472 | } | |
5473 | else | |
5474 | { | |
5475 | /* Unibyte case, and font is not equal to that of the default | |
5476 | face. UNIBYTE_REGISTRY is the X registry and encoding the | |
5477 | font should have. What is a reasonable thing to do if the | |
5478 | user specified a fontset alias name for the face in this | |
5479 | case? We choose a font by taking the ASCII font of the | |
5480 | fontset, but using UNIBYTE_REGISTRY for its registry and | |
5481 | encoding. */ | |
5482 | ||
5483 | char *font_name = NULL; | |
5484 | int fontset = face_fontset (f, attrs); | |
5485 | ||
5486 | if (fontset < 0) | |
5487 | font_name = choose_face_font (f, attrs, charset, unibyte_registry); | |
5488 | else | |
5489 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5490 | ||
5491 | load_face_font_or_fontset (f, face, font_name, -1); | |
5492 | xfree (font_name); | |
5493 | } | |
5494 | ||
5495 | /* Load colors, and set remaining attributes. */ | |
5496 | ||
5497 | load_face_colors (f, face, attrs); | |
660ed669 | 5498 | |
82641697 GM |
5499 | /* Set up box. */ |
5500 | box = attrs[LFACE_BOX_INDEX]; | |
5501 | if (STRINGP (box)) | |
cb637678 | 5502 | { |
82641697 GM |
5503 | /* A simple box of line width 1 drawn in color given by |
5504 | the string. */ | |
5505 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5506 | LFACE_BOX_INDEX); | |
5507 | face->box = FACE_SIMPLE_BOX; | |
5508 | face->box_line_width = 1; | |
cb637678 | 5509 | } |
82641697 | 5510 | else if (INTEGERP (box)) |
42120bc7 | 5511 | { |
82641697 GM |
5512 | /* Simple box of specified line width in foreground color of the |
5513 | face. */ | |
5514 | xassert (XINT (box) > 0); | |
5515 | face->box = FACE_SIMPLE_BOX; | |
5516 | face->box_line_width = XFASTINT (box); | |
5517 | face->box_color = face->foreground; | |
5518 | face->box_color_defaulted_p = 1; | |
5519 | } | |
5520 | else if (CONSP (box)) | |
5521 | { | |
5522 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5523 | being one of `raised' or `sunken'. */ | |
5524 | face->box = FACE_SIMPLE_BOX; | |
5525 | face->box_color = face->foreground; | |
5526 | face->box_color_defaulted_p = 1; | |
5527 | face->box_line_width = 1; | |
5528 | ||
5529 | while (CONSP (box)) | |
42120bc7 | 5530 | { |
82641697 GM |
5531 | Lisp_Object keyword, value; |
5532 | ||
5533 | keyword = XCAR (box); | |
5534 | box = XCDR (box); | |
5535 | ||
5536 | if (!CONSP (box)) | |
5537 | break; | |
5538 | value = XCAR (box); | |
5539 | box = XCDR (box); | |
5540 | ||
5541 | if (EQ (keyword, QCline_width)) | |
5542 | { | |
5543 | if (INTEGERP (value) && XINT (value) > 0) | |
5544 | face->box_line_width = XFASTINT (value); | |
5545 | } | |
5546 | else if (EQ (keyword, QCcolor)) | |
5547 | { | |
5548 | if (STRINGP (value)) | |
5549 | { | |
5550 | face->box_color = load_color (f, face, value, | |
5551 | LFACE_BOX_INDEX); | |
5552 | face->use_box_color_for_shadows_p = 1; | |
5553 | } | |
5554 | } | |
5555 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5556 | { |
82641697 GM |
5557 | if (EQ (value, Qreleased_button)) |
5558 | face->box = FACE_RAISED_BOX; | |
5559 | else if (EQ (value, Qpressed_button)) | |
5560 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5561 | } |
42120bc7 RS |
5562 | } |
5563 | } | |
195f798e | 5564 | |
82641697 GM |
5565 | /* Text underline, overline, strike-through. */ |
5566 | ||
5567 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) | |
5568 | { | |
5569 | /* Use default color (same as foreground color). */ | |
5570 | face->underline_p = 1; | |
5571 | face->underline_defaulted_p = 1; | |
5572 | face->underline_color = 0; | |
5573 | } | |
5574 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 5575 | { |
82641697 GM |
5576 | /* Use specified color. */ |
5577 | face->underline_p = 1; | |
5578 | face->underline_defaulted_p = 0; | |
5579 | face->underline_color | |
5580 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
5581 | LFACE_UNDERLINE_INDEX); | |
195f798e | 5582 | } |
82641697 | 5583 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 5584 | { |
82641697 GM |
5585 | face->underline_p = 0; |
5586 | face->underline_defaulted_p = 0; | |
5587 | face->underline_color = 0; | |
7b00de84 JB |
5588 | } |
5589 | ||
82641697 GM |
5590 | overline = attrs[LFACE_OVERLINE_INDEX]; |
5591 | if (STRINGP (overline)) | |
cb637678 | 5592 | { |
82641697 GM |
5593 | face->overline_color |
5594 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
5595 | LFACE_OVERLINE_INDEX); | |
5596 | face->overline_p = 1; | |
cb637678 | 5597 | } |
82641697 | 5598 | else if (EQ (overline, Qt)) |
cb637678 | 5599 | { |
82641697 GM |
5600 | face->overline_color = face->foreground; |
5601 | face->overline_color_defaulted_p = 1; | |
5602 | face->overline_p = 1; | |
cb637678 JB |
5603 | } |
5604 | ||
82641697 GM |
5605 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
5606 | if (STRINGP (strike_through)) | |
5607 | { | |
5608 | face->strike_through_color | |
5609 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5610 | LFACE_STRIKE_THROUGH_INDEX); | |
5611 | face->strike_through_p = 1; | |
5612 | } | |
5613 | else if (EQ (strike_through, Qt)) | |
5614 | { | |
5615 | face->strike_through_color = face->foreground; | |
5616 | face->strike_through_color_defaulted_p = 1; | |
5617 | face->strike_through_p = 1; | |
5618 | } | |
867dd159 | 5619 | |
82641697 GM |
5620 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
5621 | if (!NILP (stipple)) | |
5622 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 5623 | |
82641697 GM |
5624 | UNGCPRO; |
5625 | xassert (face->fontset < 0 || face->charset == CHARSET_COMPOSITION); | |
5626 | xassert (FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
5627 | return face; | |
5628 | #endif /* HAVE_X_WINDOWS */ | |
660ed669 JB |
5629 | } |
5630 | ||
729425b1 | 5631 | |
82641697 GM |
5632 | /* Realize the fully-specified face with attributes ATTRS in face |
5633 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5634 | 0. Do it for TTY frame C->f. Value is a pointer to the newly | |
5635 | created realized face. */ | |
a8517066 | 5636 | |
82641697 GM |
5637 | static struct face * |
5638 | realize_tty_face (c, attrs, charset) | |
5639 | struct face_cache *c; | |
5640 | Lisp_Object *attrs; | |
5641 | int charset; | |
5642 | { | |
5643 | struct face *face; | |
5644 | int weight, slant; | |
5645 | Lisp_Object color; | |
729425b1 | 5646 | |
82641697 | 5647 | /* Frame must be a termcap frame. */ |
44747bd0 | 5648 | xassert (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)); |
82641697 GM |
5649 | |
5650 | /* Allocate a new realized face. */ | |
5651 | face = make_realized_face (attrs, charset, Qnil); | |
44747bd0 | 5652 | face->font_name = FRAME_MSDOS_P (c->f) ? "ms-dos" : "tty"; |
82641697 GM |
5653 | |
5654 | /* Map face attributes to TTY appearances. We map slant to | |
5655 | dimmed text because we want italic text to appear differently | |
5656 | and because dimmed text is probably used infrequently. */ | |
5657 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5658 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5659 | ||
5660 | if (weight > XLFD_WEIGHT_MEDIUM) | |
5661 | face->tty_bold_p = 1; | |
5662 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
5663 | face->tty_dim_p = 1; | |
5664 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
5665 | face->tty_underline_p = 1; | |
5666 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
5667 | face->tty_reverse_p = 1; | |
5668 | ||
5669 | /* Map color names to color indices. */ | |
5670 | face->foreground = face->background = FACE_TTY_DEFAULT_COLOR; | |
5671 | ||
5672 | color = attrs[LFACE_FOREGROUND_INDEX]; | |
5673 | if (XSTRING (color)->size | |
5674 | && (color = Fassoc (color, Vface_tty_color_alist), | |
5675 | CONSP (color))) | |
5676 | face->foreground = XINT (XCDR (color)); | |
5677 | ||
44747bd0 EZ |
5678 | #ifdef MSDOS |
5679 | if (FRAME_MSDOS_P (c->f) && face->foreground == FACE_TTY_DEFAULT_COLOR) | |
1697ca38 EZ |
5680 | { |
5681 | face->foreground = load_color (c->f, face, | |
5682 | attrs[LFACE_FOREGROUND_INDEX], | |
5683 | LFACE_FOREGROUND_INDEX); | |
5684 | /* If the foreground of the default face is the default color, | |
5685 | use the foreground color defined by the frame. */ | |
5686 | if (face->foreground == FACE_TTY_DEFAULT_COLOR) | |
5687 | { | |
5688 | face->foreground = FRAME_FOREGROUND_PIXEL (f); | |
5689 | attrs[LFACE_FOREGROUND_INDEX] = | |
5690 | build_string (msdos_stdcolor_name (face->foreground)); | |
5691 | } | |
5692 | } | |
44747bd0 EZ |
5693 | #endif |
5694 | ||
82641697 GM |
5695 | color = attrs[LFACE_BACKGROUND_INDEX]; |
5696 | if (XSTRING (color)->size | |
5697 | && (color = Fassoc (color, Vface_tty_color_alist), | |
5698 | CONSP (color))) | |
5699 | face->background = XINT (XCDR (color)); | |
729425b1 | 5700 | |
44747bd0 EZ |
5701 | #ifdef MSDOS |
5702 | if (FRAME_MSDOS_P (c->f) && face->background == FACE_TTY_DEFAULT_COLOR) | |
1697ca38 EZ |
5703 | { |
5704 | face->background = load_color (c->f, face, | |
5705 | attrs[LFACE_BACKGROUND_INDEX], | |
5706 | LFACE_BACKGROUND_INDEX); | |
5707 | /* If the background of the default face is the default color, | |
5708 | use the background color defined by the frame. */ | |
5709 | if (face->background == FACE_TTY_DEFAULT_COLOR) | |
5710 | { | |
5711 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
5712 | attrs[LFACE_BACKGROUND_INDEX] = | |
5713 | build_string (msdos_stdcolor_name (face->background)); | |
5714 | } | |
5715 | } | |
44747bd0 EZ |
5716 | |
5717 | /* Swap colors if face is inverse-video. */ | |
5718 | if (face->tty_reverse_p) | |
5719 | { | |
5720 | unsigned long tem = face->foreground; | |
5721 | ||
5722 | face->foreground = face->background; | |
5723 | face->background = tem; | |
5724 | } | |
5725 | #endif | |
5726 | ||
82641697 | 5727 | return face; |
729425b1 | 5728 | } |
867dd159 | 5729 | |
82641697 GM |
5730 | |
5731 | DEFUN ("face-register-tty-color", Fface_register_tty_color, | |
5732 | Sface_register_tty_color, 2, 2, 0, | |
5733 | "Say that COLOR is color number NUMBER on the terminal.\n\ | |
5734 | COLOR is a string, the color name. Value is COLOR.") | |
5735 | (color, number) | |
5736 | Lisp_Object color, number; | |
7b7739b1 | 5737 | { |
82641697 GM |
5738 | Lisp_Object entry; |
5739 | ||
5740 | CHECK_STRING (color, 0); | |
5741 | CHECK_NUMBER (number, 1); | |
5742 | entry = Fassoc (color, Vface_tty_color_alist); | |
5743 | if (NILP (entry)) | |
5744 | Vface_tty_color_alist = Fcons (Fcons (color, number), | |
5745 | Vface_tty_color_alist); | |
5746 | else | |
5747 | Fsetcdr (entry, number); | |
5748 | return color; | |
7b7739b1 JB |
5749 | } |
5750 | ||
867dd159 | 5751 | |
82641697 GM |
5752 | DEFUN ("face-clear-tty-colors", Fface_clear_tty_colors, |
5753 | Sface_clear_tty_colors, 0, 0, 0, | |
5754 | "Unregister all registered tty colors.") | |
5755 | () | |
660ed669 | 5756 | { |
82641697 | 5757 | return Vface_tty_color_alist = Qnil; |
660ed669 JB |
5758 | } |
5759 | ||
867dd159 | 5760 | |
82641697 GM |
5761 | DEFUN ("tty-defined-colors", Ftty_defined_colors, |
5762 | Stty_defined_colors, 0, 0, 0, | |
5763 | "Return a list of registered tty colors.") | |
5764 | () | |
867dd159 | 5765 | { |
82641697 | 5766 | Lisp_Object list, colors; |
867dd159 | 5767 | |
82641697 GM |
5768 | colors = Qnil; |
5769 | for (list = Vface_tty_color_alist; CONSP (list); list = XCDR (list)) | |
5770 | colors = Fcons (XCAR (XCAR (list)), colors); | |
867dd159 | 5771 | |
82641697 | 5772 | return colors; |
867dd159 | 5773 | } |
2e16580f | 5774 | |
82641697 GM |
5775 | |
5776 | \f | |
5777 | /*********************************************************************** | |
5778 | Computing Faces | |
5779 | ***********************************************************************/ | |
5780 | ||
5781 | /* Return the ID of the face to use to display character CH with face | |
5782 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
5783 | |
5784 | int | |
82641697 | 5785 | compute_char_face (f, ch, prop) |
2e16580f | 5786 | struct frame *f; |
82641697 GM |
5787 | int ch; |
5788 | Lisp_Object prop; | |
2e16580f | 5789 | { |
82641697 GM |
5790 | int face_id; |
5791 | int charset = (NILP (current_buffer->enable_multibyte_characters) | |
5792 | ? -1 | |
5793 | : CHAR_CHARSET (ch)); | |
5794 | ||
5795 | if (NILP (prop)) | |
5796 | face_id = FACE_FOR_CHARSET (f, DEFAULT_FACE_ID, charset); | |
5797 | else | |
2e16580f | 5798 | { |
82641697 GM |
5799 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
5800 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5801 | bcopy (default_face->lface, attrs, sizeof attrs); | |
5802 | merge_face_vector_with_property (f, attrs, prop); | |
5803 | face_id = lookup_face (f, attrs, charset); | |
2e16580f RS |
5804 | } |
5805 | ||
82641697 | 5806 | return face_id; |
2e16580f | 5807 | } |
bc0db68d | 5808 | |
b349f4fb | 5809 | |
82641697 GM |
5810 | /* Return the face ID associated with buffer position POS for |
5811 | displaying ASCII characters. Return in *ENDPTR the position at | |
5812 | which a different face is needed, as far as text properties and | |
5813 | overlays are concerned. W is a window displaying current_buffer. | |
5814 | ||
5815 | REGION_BEG, REGION_END delimit the region, so it can be | |
5816 | highlighted. | |
6f134486 | 5817 | |
82641697 GM |
5818 | LIMIT is a position not to scan beyond. That is to limit the time |
5819 | this function can take. | |
5820 | ||
5821 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
5822 | ||
5823 | The face returned is suitable for displaying CHARSET_ASCII if | |
5824 | current_buffer->enable_multibyte_characters is non-nil. Otherwise, | |
5825 | the face is suitable for displaying unibyte text. */ | |
bc0db68d | 5826 | |
cb637678 | 5827 | int |
82641697 GM |
5828 | face_at_buffer_position (w, pos, region_beg, region_end, |
5829 | endptr, limit, mouse) | |
f211082d | 5830 | struct window *w; |
7b7739b1 | 5831 | int pos; |
bc0db68d | 5832 | int region_beg, region_end; |
7b7739b1 | 5833 | int *endptr; |
b349f4fb | 5834 | int limit; |
6f134486 | 5835 | int mouse; |
7b7739b1 | 5836 | { |
82641697 GM |
5837 | struct frame *f = XFRAME (w->frame); |
5838 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 5839 | Lisp_Object prop, position; |
82641697 | 5840 | int i, noverlays; |
7b7739b1 | 5841 | Lisp_Object *overlay_vec; |
f211082d | 5842 | Lisp_Object frame; |
f6b98e0b | 5843 | int endpos; |
82641697 GM |
5844 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
5845 | Lisp_Object limit1, end; | |
5846 | struct face *default_face; | |
5847 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
5848 | |
5849 | /* W must display the current buffer. We could write this function | |
5850 | to use the frame and buffer of W, but right now it doesn't. */ | |
82641697 | 5851 | xassert (XBUFFER (w->buffer) == current_buffer); |
f211082d | 5852 | |
ac22a6c4 | 5853 | XSETFRAME (frame, f); |
82641697 | 5854 | XSETFASTINT (position, pos); |
7b7739b1 | 5855 | |
f6b98e0b | 5856 | endpos = ZV; |
bc0db68d RS |
5857 | if (pos < region_beg && region_beg < endpos) |
5858 | endpos = region_beg; | |
f6b98e0b | 5859 | |
82641697 GM |
5860 | /* Get the `face' or `mouse_face' text property at POS, and |
5861 | determine the next position at which the property changes. */ | |
6f134486 | 5862 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
5863 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
5864 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
5865 | if (INTEGERP (end)) | |
5866 | endpos = XINT (end); | |
6f134486 | 5867 | |
82641697 | 5868 | /* Look at properties from overlays. */ |
b6d40e46 | 5869 | { |
f6b98e0b | 5870 | int next_overlay; |
9516fe94 RS |
5871 | int len; |
5872 | ||
5873 | /* First try with room for 40 overlays. */ | |
5874 | len = 40; | |
5875 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 5876 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 5877 | &next_overlay, NULL); |
9516fe94 | 5878 | |
82641697 GM |
5879 | /* If there are more than 40, make enough space for all, and try |
5880 | again. */ | |
9516fe94 RS |
5881 | if (noverlays > len) |
5882 | { | |
5883 | len = noverlays; | |
5884 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 5885 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 5886 | &next_overlay, NULL); |
9516fe94 | 5887 | } |
b6d40e46 | 5888 | |
f6b98e0b JB |
5889 | if (next_overlay < endpos) |
5890 | endpos = next_overlay; | |
b6d40e46 JB |
5891 | } |
5892 | ||
5893 | *endptr = endpos; | |
7b7739b1 | 5894 | |
82641697 GM |
5895 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
5896 | ||
5897 | /* Optimize common cases where we can use the default face. */ | |
5898 | if (noverlays == 0 | |
5899 | && NILP (prop) | |
5900 | && !(pos >= region_beg && pos < region_end) | |
5901 | && (multibyte_p | |
5902 | || !FRAME_WINDOW_P (f) | |
5903 | || FACE_SUITABLE_FOR_CHARSET_P (default_face, -1))) | |
5904 | return DEFAULT_FACE_ID; | |
5905 | ||
5906 | /* Begin with attributes from the default face. */ | |
5907 | bcopy (default_face->lface, attrs, sizeof attrs); | |
5908 | ||
5909 | /* Merge in attributes specified via text properties. */ | |
5910 | if (!NILP (prop)) | |
5911 | merge_face_vector_with_property (f, attrs, prop); | |
5912 | ||
5913 | /* Now merge the overlay data. */ | |
18195655 | 5914 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 5915 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 5916 | { |
18195655 RS |
5917 | Lisp_Object oend; |
5918 | int oendpos; | |
5919 | ||
5920 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
5921 | if (!NILP (prop)) |
5922 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
5923 | |
5924 | oend = OVERLAY_END (overlay_vec[i]); | |
5925 | oendpos = OVERLAY_POSITION (oend); | |
5926 | if (oendpos < endpos) | |
5927 | endpos = oendpos; | |
5928 | } | |
5929 | ||
82641697 | 5930 | /* If in the region, merge in the region face. */ |
18195655 RS |
5931 | if (pos >= region_beg && pos < region_end) |
5932 | { | |
82641697 GM |
5933 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
5934 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
5935 | ||
18195655 RS |
5936 | if (region_end < endpos) |
5937 | endpos = region_end; | |
18195655 RS |
5938 | } |
5939 | ||
5940 | *endptr = endpos; | |
5941 | ||
82641697 GM |
5942 | /* Look up a realized face with the given face attributes, |
5943 | or realize a new one. Charset is ignored for tty frames. */ | |
5944 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
18195655 RS |
5945 | } |
5946 | ||
60573a90 | 5947 | |
82641697 GM |
5948 | /* Compute the face at character position POS in Lisp string STRING on |
5949 | window W, for charset CHARSET_ASCII. | |
7b7739b1 | 5950 | |
82641697 GM |
5951 | If STRING is an overlay string, it comes from position BUFPOS in |
5952 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
5953 | not an overlay string. W must display the current buffer. | |
5954 | REGION_BEG and REGION_END give the start and end positions of the | |
5955 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
5956 | id of the basic face to merge with. It is usually equal to | |
5957 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or TOP_LINE_FACE_ID | |
5958 | for strings displayed in the mode or top line. | |
5959 | ||
5960 | Set *ENDPTR to the next position where to check for faces in | |
5961 | STRING; -1 if the face is constant from POS to the end of the | |
5962 | string. | |
18195655 | 5963 | |
82641697 GM |
5964 | Value is the id of the face to use. The face returned is suitable |
5965 | for displaying CHARSET_ASCII if STRING is multibyte. Otherwise, | |
5966 | the face is suitable for displaying unibyte text. */ | |
fffc2367 | 5967 | |
82641697 GM |
5968 | int |
5969 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
5970 | region_end, endptr, base_face_id) | |
5971 | struct window *w; | |
5972 | Lisp_Object string; | |
5973 | int pos, bufpos; | |
5974 | int region_beg, region_end; | |
5975 | int *endptr; | |
5976 | enum face_id base_face_id; | |
660ed669 | 5977 | { |
82641697 GM |
5978 | Lisp_Object prop, position, end, limit; |
5979 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
5980 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5981 | struct face *base_face; | |
5982 | int multibyte_p = STRING_MULTIBYTE (string); | |
5983 | ||
5984 | /* Get the value of the face property at the current position within | |
5985 | STRING. Value is nil if there is no face property. */ | |
5986 | XSETFASTINT (position, pos); | |
5987 | prop = Fget_text_property (position, Qface, string); | |
5988 | ||
5989 | /* Get the next position at which to check for faces. Value of end | |
5990 | is nil if face is constant all the way to the end of the string. | |
5991 | Otherwise it is a string position where to check faces next. | |
5992 | Limit is the maximum position up to which to check for property | |
5993 | changes in Fnext_single_property_change. Strings are usually | |
5994 | short, so set the limit to the end of the string. */ | |
5995 | XSETFASTINT (limit, XSTRING (string)->size); | |
5996 | end = Fnext_single_property_change (position, Qface, string, limit); | |
5997 | if (INTEGERP (end)) | |
5998 | *endptr = XFASTINT (end); | |
5999 | else | |
6000 | *endptr = -1; | |
6001 | ||
6002 | base_face = FACE_FROM_ID (f, base_face_id); | |
6003 | xassert (base_face); | |
6004 | ||
6005 | /* Optimize the default case that there is no face property and we | |
6006 | are not in the region. */ | |
6007 | if (NILP (prop) | |
6008 | && (base_face_id != DEFAULT_FACE_ID | |
6009 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6010 | that the region doesn't have to be taken into account. */ | |
6011 | || bufpos <= 0 | |
6012 | || bufpos < region_beg | |
6013 | || bufpos >= region_end) | |
6014 | && (multibyte_p | |
6015 | /* We can't realize faces for different charsets differently | |
6016 | if we don't have fonts, so we can stop here if not working | |
6017 | on a window-system frame. */ | |
6018 | || !FRAME_WINDOW_P (f) | |
6019 | || FACE_SUITABLE_FOR_CHARSET_P (base_face, -1))) | |
6020 | return base_face->id; | |
6021 | ||
6022 | /* Begin with attributes from the base face. */ | |
6023 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6024 | ||
6025 | /* Merge in attributes specified via text properties. */ | |
6026 | if (!NILP (prop)) | |
6027 | merge_face_vector_with_property (f, attrs, prop); | |
6028 | ||
6029 | /* If in the region, merge in the region face. */ | |
6030 | if (bufpos | |
6031 | && bufpos >= region_beg | |
6032 | && bufpos < region_end) | |
a8517066 | 6033 | { |
82641697 GM |
6034 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6035 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
a8517066 | 6036 | } |
660ed669 | 6037 | |
82641697 GM |
6038 | /* Look up a realized face with the given face attributes, |
6039 | or realize a new one. */ | |
6040 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
660ed669 JB |
6041 | } |
6042 | ||
6043 | ||
c115973b | 6044 | \f |
82641697 GM |
6045 | /*********************************************************************** |
6046 | Tests | |
6047 | ***********************************************************************/ | |
c115973b | 6048 | |
82641697 | 6049 | #if GLYPH_DEBUG |
c115973b | 6050 | |
82641697 | 6051 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6052 | |
82641697 GM |
6053 | static void |
6054 | dump_realized_face (face) | |
6055 | struct face *face; | |
6056 | { | |
6057 | fprintf (stderr, "ID: %d\n", face->id); | |
6058 | #ifdef HAVE_X_WINDOWS | |
6059 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6060 | #endif | |
6061 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6062 | face->foreground, | |
6063 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6064 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6065 | face->background, | |
6066 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6067 | fprintf (stderr, "font_name: %s (%s)\n", | |
6068 | face->font_name, | |
6069 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6070 | #ifdef HAVE_X_WINDOWS | |
6071 | fprintf (stderr, "font = %p\n", face->font); | |
6072 | #endif | |
6073 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6074 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6075 | fprintf (stderr, "underline: %d (%s)\n", | |
6076 | face->underline_p, | |
6077 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6078 | fprintf (stderr, "hash: %d\n", face->hash); | |
6079 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6080 | } |
6081 | ||
6082 | ||
82641697 GM |
6083 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6084 | (n) | |
6085 | Lisp_Object n; | |
c115973b | 6086 | { |
82641697 | 6087 | if (NILP (n)) |
c115973b | 6088 | { |
82641697 GM |
6089 | int i; |
6090 | ||
6091 | fprintf (stderr, "font selection order: "); | |
6092 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6093 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6094 | fprintf (stderr, "\n"); | |
6095 | ||
6096 | fprintf (stderr, "alternative fonts: "); | |
6097 | debug_print (Vface_alternative_font_family_alist); | |
6098 | fprintf (stderr, "\n"); | |
6099 | ||
6100 | for (i = 0; i < FRAME_FACE_CACHE (selected_frame)->used; ++i) | |
6101 | Fdump_face (make_number (i)); | |
c115973b JB |
6102 | } |
6103 | else | |
f5e278c7 | 6104 | { |
82641697 GM |
6105 | struct face *face; |
6106 | CHECK_NUMBER (n, 0); | |
6107 | face = FACE_FROM_ID (selected_frame, XINT (n)); | |
6108 | if (face == NULL) | |
6109 | error ("Not a valid face"); | |
6110 | dump_realized_face (face); | |
f5e278c7 | 6111 | } |
82641697 | 6112 | |
c115973b JB |
6113 | return Qnil; |
6114 | } | |
b5c53576 | 6115 | |
b5c53576 | 6116 | |
82641697 GM |
6117 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6118 | 0, 0, 0, "") | |
6119 | () | |
b5c53576 | 6120 | { |
82641697 GM |
6121 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6122 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6123 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6124 | return Qnil; | |
b5c53576 RS |
6125 | } |
6126 | ||
82641697 GM |
6127 | #endif /* GLYPH_DEBUG != 0 */ |
6128 | ||
b5c53576 | 6129 | |
c115973b | 6130 | \f |
82641697 GM |
6131 | /*********************************************************************** |
6132 | Initialization | |
6133 | ***********************************************************************/ | |
cb637678 | 6134 | |
c115973b | 6135 | void |
f211082d | 6136 | syms_of_xfaces () |
c115973b | 6137 | { |
f211082d JB |
6138 | Qface = intern ("face"); |
6139 | staticpro (&Qface); | |
cd0bb842 RS |
6140 | Qpixmap_spec_p = intern ("pixmap-spec-p"); |
6141 | staticpro (&Qpixmap_spec_p); | |
f211082d | 6142 | |
82641697 GM |
6143 | /* Lisp face attribute keywords. */ |
6144 | QCfamily = intern (":family"); | |
6145 | staticpro (&QCfamily); | |
6146 | QCheight = intern (":height"); | |
6147 | staticpro (&QCheight); | |
6148 | QCweight = intern (":weight"); | |
6149 | staticpro (&QCweight); | |
6150 | QCslant = intern (":slant"); | |
6151 | staticpro (&QCslant); | |
6152 | QCunderline = intern (":underline"); | |
6153 | staticpro (&QCunderline); | |
6154 | QCinverse_video = intern (":inverse-video"); | |
6155 | staticpro (&QCinverse_video); | |
6156 | QCreverse_video = intern (":reverse-video"); | |
6157 | staticpro (&QCreverse_video); | |
6158 | QCforeground = intern (":foreground"); | |
6159 | staticpro (&QCforeground); | |
6160 | QCbackground = intern (":background"); | |
6161 | staticpro (&QCbackground); | |
6162 | QCstipple = intern (":stipple");; | |
6163 | staticpro (&QCstipple); | |
6164 | QCwidth = intern (":width"); | |
6165 | staticpro (&QCwidth); | |
6166 | QCfont = intern (":font"); | |
6167 | staticpro (&QCfont); | |
6168 | QCbold = intern (":bold"); | |
6169 | staticpro (&QCbold); | |
6170 | QCitalic = intern (":italic"); | |
6171 | staticpro (&QCitalic); | |
6172 | QCoverline = intern (":overline"); | |
6173 | staticpro (&QCoverline); | |
6174 | QCstrike_through = intern (":strike-through"); | |
6175 | staticpro (&QCstrike_through); | |
6176 | QCbox = intern (":box"); | |
6177 | staticpro (&QCbox); | |
6178 | ||
6179 | /* Symbols used for Lisp face attribute values. */ | |
6180 | QCcolor = intern (":color"); | |
6181 | staticpro (&QCcolor); | |
6182 | QCline_width = intern (":line-width"); | |
6183 | staticpro (&QCline_width); | |
6184 | QCstyle = intern (":style"); | |
6185 | staticpro (&QCstyle); | |
6186 | Qreleased_button = intern ("released-button"); | |
6187 | staticpro (&Qreleased_button); | |
6188 | Qpressed_button = intern ("pressed-button"); | |
6189 | staticpro (&Qpressed_button); | |
6190 | Qnormal = intern ("normal"); | |
6191 | staticpro (&Qnormal); | |
6192 | Qultra_light = intern ("ultra-light"); | |
6193 | staticpro (&Qultra_light); | |
6194 | Qextra_light = intern ("extra-light"); | |
6195 | staticpro (&Qextra_light); | |
6196 | Qlight = intern ("light"); | |
6197 | staticpro (&Qlight); | |
6198 | Qsemi_light = intern ("semi-light"); | |
6199 | staticpro (&Qsemi_light); | |
6200 | Qsemi_bold = intern ("semi-bold"); | |
6201 | staticpro (&Qsemi_bold); | |
6202 | Qbold = intern ("bold"); | |
6203 | staticpro (&Qbold); | |
6204 | Qextra_bold = intern ("extra-bold"); | |
6205 | staticpro (&Qextra_bold); | |
6206 | Qultra_bold = intern ("ultra-bold"); | |
6207 | staticpro (&Qultra_bold); | |
6208 | Qoblique = intern ("oblique"); | |
6209 | staticpro (&Qoblique); | |
6210 | Qitalic = intern ("italic"); | |
6211 | staticpro (&Qitalic); | |
6212 | Qreverse_oblique = intern ("reverse-oblique"); | |
6213 | staticpro (&Qreverse_oblique); | |
6214 | Qreverse_italic = intern ("reverse-italic"); | |
6215 | staticpro (&Qreverse_italic); | |
6216 | Qultra_condensed = intern ("ultra-condensed"); | |
6217 | staticpro (&Qultra_condensed); | |
6218 | Qextra_condensed = intern ("extra-condensed"); | |
6219 | staticpro (&Qextra_condensed); | |
6220 | Qcondensed = intern ("condensed"); | |
6221 | staticpro (&Qcondensed); | |
6222 | Qsemi_condensed = intern ("semi-condensed"); | |
6223 | staticpro (&Qsemi_condensed); | |
6224 | Qsemi_expanded = intern ("semi-expanded"); | |
6225 | staticpro (&Qsemi_expanded); | |
6226 | Qexpanded = intern ("expanded"); | |
6227 | staticpro (&Qexpanded); | |
6228 | Qextra_expanded = intern ("extra-expanded"); | |
6229 | staticpro (&Qextra_expanded); | |
6230 | Qultra_expanded = intern ("ultra-expanded"); | |
6231 | staticpro (&Qultra_expanded); | |
6232 | Qbackground_color = intern ("background-color"); | |
6233 | staticpro (&Qbackground_color); | |
6234 | Qforeground_color = intern ("foreground-color"); | |
6235 | staticpro (&Qforeground_color); | |
6236 | Qunspecified = intern ("unspecified"); | |
6237 | staticpro (&Qunspecified); | |
6238 | ||
6239 | Qx_charset_registry = intern ("x-charset-registry"); | |
6240 | staticpro (&Qx_charset_registry); | |
6241 | Qdefault = intern ("default"); | |
6242 | staticpro (&Qdefault); | |
6243 | Qmodeline = intern ("modeline"); | |
6244 | staticpro (&Qmodeline); | |
6245 | Qtoolbar = intern ("toolbar"); | |
6246 | staticpro (&Qtoolbar); | |
6247 | Qregion = intern ("region"); | |
6248 | staticpro (&Qregion); | |
6249 | Qbitmap_area = intern ("bitmap-area"); | |
6250 | staticpro (&Qbitmap_area); | |
6251 | Qtop_line = intern ("top-line"); | |
6252 | staticpro (&Qtop_line); | |
6253 | ||
6254 | defsubr (&Sinternal_make_lisp_face); | |
6255 | defsubr (&Sinternal_lisp_face_p); | |
6256 | defsubr (&Sinternal_set_lisp_face_attribute); | |
6257 | #ifdef HAVE_X_WINDOWS | |
6258 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); | |
6259 | defsubr (&Sface_color_gray_p); | |
6260 | defsubr (&Sface_color_supported_p); | |
6261 | #endif | |
6262 | defsubr (&Sinternal_get_lisp_face_attribute); | |
6263 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6264 | defsubr (&Sinternal_lisp_face_equal_p); | |
6265 | defsubr (&Sinternal_lisp_face_empty_p); | |
6266 | defsubr (&Sinternal_copy_lisp_face); | |
6267 | defsubr (&Sinternal_merge_in_global_face); | |
6268 | defsubr (&Sface_font); | |
6269 | defsubr (&Sframe_face_alist); | |
6270 | defsubr (&Sinternal_set_font_selection_order); | |
6271 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
6272 | #if GLYPH_DEBUG | |
6273 | defsubr (&Sdump_face); | |
6274 | defsubr (&Sshow_face_resources); | |
6275 | #endif /* GLYPH_DEBUG */ | |
6276 | defsubr (&Sclear_face_cache); | |
6277 | ||
057df17c GM |
6278 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
6279 | "*Limit for font matching.\n\ | |
6280 | If an integer > 0, font matching functions won't load more than\n\ | |
6281 | that number of fonts when searching for a matching font."); | |
6282 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
6283 | ||
82641697 GM |
6284 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
6285 | "List of global face definitions (for internal use only.)"); | |
6286 | Vface_new_frame_defaults = Qnil; | |
6287 | ||
6288 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, | |
6289 | "*Default stipple pattern used on monochrome displays.\n\ | |
6290 | This stipple pattern is used on monochrome displays\n\ | |
6291 | instead of shades of gray for a face background color.\n\ | |
6292 | See `set-face-stipple' for possible values for this variable."); | |
6293 | Vface_default_stipple = build_string ("gray3"); | |
6294 | ||
6295 | DEFVAR_LISP ("face-default-registry", &Vface_default_registry, | |
6296 | "Default registry and encoding to use.\n\ | |
6297 | This registry and encoding is used for unibyte text. It is set up\n\ | |
6298 | from the specified frame font when Emacs starts. (For internal use only.)"); | |
6299 | Vface_default_registry = Qnil; | |
6300 | ||
6301 | DEFVAR_LISP ("face-alternative-font-family-alist", | |
6302 | &Vface_alternative_font_family_alist, ""); | |
6303 | Vface_alternative_font_family_alist = Qnil; | |
6304 | ||
6305 | #if SCALABLE_FONTS | |
6306 | ||
6307 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, | |
6308 | "Allowed scalable fonts.\n\ | |
6309 | A value of nil means don't allow any scalable fonts.\n\ | |
6310 | A value of t means allow any scalable font.\n\ | |
6311 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
6312 | scaled if its name matches a regular expression in the list."); | |
6313 | Vscalable_fonts_allowed = Qnil; | |
6314 | ||
6315 | #endif /* SCALABLE_FONTS */ | |
b5c53576 | 6316 | |
87485d6f | 6317 | #ifdef HAVE_X_WINDOWS |
cd0bb842 | 6318 | defsubr (&Spixmap_spec_p); |
82641697 GM |
6319 | defsubr (&Sx_list_fonts); |
6320 | defsubr (&Sinternal_face_x_get_resource); | |
6321 | defsubr (&Sx_font_list); | |
6322 | defsubr (&Sx_font_family_list); | |
6323 | #endif /* HAVE_X_WINDOWS */ | |
b5c53576 | 6324 | |
82641697 GM |
6325 | /* TTY face support. */ |
6326 | defsubr (&Sface_register_tty_color); | |
6327 | defsubr (&Sface_clear_tty_colors); | |
6328 | defsubr (&Stty_defined_colors); | |
6329 | Vface_tty_color_alist = Qnil; | |
6330 | staticpro (&Vface_tty_color_alist); | |
c115973b | 6331 | } |