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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 | ||
92610620 GM |
281 | /* The name of the function to call when the background of the frame |
282 | has changed, frame_update_face_colors. */ | |
283 | ||
284 | Lisp_Object Qframe_update_face_colors; | |
285 | ||
82641697 GM |
286 | /* Names of basic faces. */ |
287 | ||
92610620 | 288 | Lisp_Object Qdefault, Qmode_line, Qtool_bar, Qregion, Qfringe; |
8bd201d6 GM |
289 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse;; |
290 | ||
92610620 GM |
291 | /* The symbol `face-alias'. A symbols having that property is an |
292 | alias for another face. Value of the property is the name of | |
293 | the aliased face. */ | |
294 | ||
295 | Lisp_Object Qface_alias; | |
296 | ||
8bd201d6 GM |
297 | /* Names of frame parameters related to faces. */ |
298 | ||
299 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
300 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
301 | |
302 | /* Default stipple pattern used on monochrome displays. This stipple | |
303 | pattern is used on monochrome displays instead of shades of gray | |
304 | for a face background color. See `set-face-stipple' for possible | |
305 | values for this variable. */ | |
306 | ||
307 | Lisp_Object Vface_default_stipple; | |
308 | ||
309 | /* Default registry and encoding to use for charsets whose charset | |
310 | symbols don't specify one. */ | |
311 | ||
312 | Lisp_Object Vface_default_registry; | |
313 | ||
314 | /* Alist of alternative font families. Each element is of the form | |
315 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
316 | try FAMILY1, then FAMILY2, ... */ | |
317 | ||
318 | Lisp_Object Vface_alternative_font_family_alist; | |
319 | ||
320 | /* Allowed scalable fonts. A value of nil means don't allow any | |
321 | scalable fonts. A value of t means allow the use of any scalable | |
322 | font. Otherwise, value must be a list of regular expressions. A | |
323 | font may be scaled if its name matches a regular expression in the | |
324 | list. */ | |
325 | ||
326 | #if SCALABLE_FONTS | |
327 | Lisp_Object Vscalable_fonts_allowed; | |
328 | #endif | |
329 | ||
057df17c GM |
330 | /* Maximum number of fonts to consider in font_list. If not an |
331 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
332 | ||
333 | Lisp_Object Vfont_list_limit; | |
334 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
335 | ||
82641697 GM |
336 | /* The symbols `foreground-color' and `background-color' which can be |
337 | used as part of a `face' property. This is for compatibility with | |
338 | Emacs 20.2. */ | |
339 | ||
340 | Lisp_Object Qforeground_color, Qbackground_color; | |
341 | ||
342 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 343 | |
ff83dbb1 | 344 | Lisp_Object Qface; |
82641697 GM |
345 | extern Lisp_Object Qmouse_face; |
346 | ||
347 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
348 | ||
cd0bb842 | 349 | Lisp_Object Qpixmap_spec_p; |
f211082d | 350 | |
82641697 GM |
351 | /* Alist of global face definitions. Each element is of the form |
352 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
353 | is a Lisp vector of face attributes. These faces are used | |
354 | to initialize faces for new frames. */ | |
cb637678 | 355 | |
82641697 | 356 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 357 | |
82641697 | 358 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 359 | |
82641697 | 360 | static int next_lface_id; |
c115973b | 361 | |
82641697 | 362 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 363 | |
82641697 GM |
364 | static Lisp_Object *lface_id_to_name; |
365 | static int lface_id_to_name_size; | |
c115973b | 366 | |
82641697 GM |
367 | /* An alist of elements (COLOR-NAME . INDEX) mapping color names |
368 | to color indices for tty frames. */ | |
369 | ||
370 | Lisp_Object Vface_tty_color_alist; | |
371 | ||
372 | /* Counter for calls to clear_face_cache. If this counter reaches | |
373 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
374 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
375 | ||
376 | static int clear_font_table_count; | |
377 | #define CLEAR_FONT_TABLE_COUNT 100 | |
378 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
379 | ||
380 | /* Non-zero means face attributes have been changed since the last | |
381 | redisplay. Used in redisplay_internal. */ | |
382 | ||
383 | int face_change_count; | |
384 | ||
385 | /* The total number of colors currently allocated. */ | |
386 | ||
387 | #if GLYPH_DEBUG | |
388 | static int ncolors_allocated; | |
389 | static int npixmaps_allocated; | |
390 | static int ngcs; | |
391 | #endif | |
392 | ||
393 | ||
394 | \f | |
395 | /* Function prototypes. */ | |
396 | ||
397 | struct font_name; | |
398 | struct table_entry; | |
399 | ||
400 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); | |
401 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
402 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
403 | int)); | |
404 | static int first_font_matching P_ ((struct frame *f, char *, | |
405 | struct font_name *)); | |
406 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
407 | struct font_name *, int, int, int)); | |
408 | static int font_scalable_p P_ ((struct font_name *)); | |
409 | static Lisp_Object deduce_unibyte_registry P_ ((struct frame *, char *)); | |
410 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); | |
411 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
412 | static char *xstrdup P_ ((char *)); | |
413 | static unsigned char *xstrlwr P_ ((unsigned char *)); | |
414 | static void signal_error P_ ((char *, Lisp_Object)); | |
7dbdfcf8 | 415 | static void add_to_log P_ ((struct frame *, char *, Lisp_Object, Lisp_Object)); |
82641697 GM |
416 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
417 | static void load_face_font_or_fontset P_ ((struct frame *, struct face *, char *, int)); | |
82641697 GM |
418 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
419 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
420 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
421 | static char *build_font_name P_ ((struct font_name *)); | |
422 | static void free_font_names P_ ((struct font_name *, int)); | |
423 | static int sorted_font_list P_ ((struct frame *, char *, | |
424 | int (*cmpfn) P_ ((const void *, const void *)), | |
425 | struct font_name **)); | |
426 | static int font_list P_ ((struct frame *, char *, char *, char *, struct font_name **)); | |
427 | static int try_font_list P_ ((struct frame *, Lisp_Object *, char *, char *, char *, | |
428 | struct font_name **)); | |
429 | static int cmp_font_names P_ ((const void *, const void *)); | |
430 | static struct face *realize_face P_ ((struct face_cache *, | |
431 | Lisp_Object *, int)); | |
432 | static struct face *realize_x_face P_ ((struct face_cache *, | |
433 | Lisp_Object *, int)); | |
434 | static struct face *realize_tty_face P_ ((struct face_cache *, | |
435 | Lisp_Object *, int)); | |
436 | static int realize_basic_faces P_ ((struct frame *)); | |
437 | static int realize_default_face P_ ((struct frame *)); | |
438 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
439 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
440 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
441 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
442 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
443 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
444 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
445 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
446 | static void clear_face_gcs P_ ((struct face_cache *)); | |
447 | static void free_face_cache P_ ((struct face_cache *)); | |
448 | static int face_numeric_weight P_ ((Lisp_Object)); | |
449 | static int face_numeric_slant P_ ((Lisp_Object)); | |
450 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
451 | static int face_fontset P_ ((struct frame *, Lisp_Object *)); | |
452 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, | |
453 | Lisp_Object)); | |
454 | static char *choose_face_fontset_font P_ ((struct frame *, Lisp_Object *, | |
455 | int, int)); | |
456 | static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); | |
457 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, | |
458 | Lisp_Object)); | |
459 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, char *, | |
460 | int)); | |
461 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); | |
462 | static struct face *make_realized_face P_ ((Lisp_Object *, int, Lisp_Object)); | |
463 | static void free_realized_faces P_ ((struct face_cache *)); | |
464 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
465 | struct font_name *, int)); | |
466 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
467 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
468 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
469 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
470 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
471 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
472 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
473 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
474 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
475 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
476 | int, int)); | |
477 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
478 | struct font_name *, int, int)); | |
479 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, | |
480 | struct font_name *, int)); | |
481 | ||
482 | #ifdef HAVE_X_WINDOWS | |
483 | ||
484 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
485 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
486 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
487 | int (*cmpfn) P_ ((const void *, const void *)))); | |
488 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
489 | static void x_free_gc P_ ((struct frame *, GC)); | |
490 | static void clear_font_table P_ ((struct frame *)); | |
491 | ||
492 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 493 | |
cb637678 | 494 | \f |
82641697 GM |
495 | /*********************************************************************** |
496 | Utilities | |
497 | ***********************************************************************/ | |
c115973b | 498 | |
87485d6f | 499 | #ifdef HAVE_X_WINDOWS |
cb637678 | 500 | |
82641697 GM |
501 | /* Create and return a GC for use on frame F. GC values and mask |
502 | are given by XGCV and MASK. */ | |
503 | ||
504 | static INLINE GC | |
505 | x_create_gc (f, mask, xgcv) | |
cb637678 | 506 | struct frame *f; |
82641697 GM |
507 | unsigned long mask; |
508 | XGCValues *xgcv; | |
c115973b JB |
509 | { |
510 | GC gc; | |
82641697 GM |
511 | BLOCK_INPUT; |
512 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
513 | UNBLOCK_INPUT; | |
514 | IF_DEBUG (++ngcs); | |
515 | return gc; | |
516 | } | |
c115973b | 517 | |
42120bc7 | 518 | |
82641697 GM |
519 | /* Free GC which was used on frame F. */ |
520 | ||
521 | static INLINE void | |
522 | x_free_gc (f, gc) | |
523 | struct frame *f; | |
524 | GC gc; | |
525 | { | |
660ed669 | 526 | BLOCK_INPUT; |
82641697 GM |
527 | xassert (--ngcs >= 0); |
528 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
529 | UNBLOCK_INPUT; | |
530 | } | |
660ed669 | 531 | |
82641697 | 532 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 533 | |
660ed669 | 534 | |
82641697 GM |
535 | /* Like strdup, but uses xmalloc. */ |
536 | ||
537 | static char * | |
538 | xstrdup (s) | |
539 | char *s; | |
540 | { | |
541 | int len = strlen (s) + 1; | |
542 | char *p = (char *) xmalloc (len); | |
543 | bcopy (s, p, len); | |
544 | return p; | |
545 | } | |
660ed669 | 546 | |
660ed669 | 547 | |
82641697 GM |
548 | /* Like stricmp. Used to compare parts of font names which are in |
549 | ISO8859-1. */ | |
550 | ||
551 | int | |
552 | xstricmp (s1, s2) | |
553 | unsigned char *s1, *s2; | |
554 | { | |
555 | while (*s1 && *s2) | |
95887807 | 556 | { |
82641697 GM |
557 | unsigned char c1 = tolower (*s1); |
558 | unsigned char c2 = tolower (*s2); | |
559 | if (c1 != c2) | |
560 | return c1 < c2 ? -1 : 1; | |
561 | ++s1, ++s2; | |
95887807 | 562 | } |
cd0bb842 | 563 | |
82641697 GM |
564 | if (*s1 == 0) |
565 | return *s2 == 0 ? 0 : -1; | |
566 | return 1; | |
567 | } | |
660ed669 | 568 | |
660ed669 | 569 | |
82641697 | 570 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 571 | |
82641697 GM |
572 | static unsigned char * |
573 | xstrlwr (s) | |
574 | unsigned char *s; | |
575 | { | |
576 | unsigned char *p = s; | |
577 | ||
578 | for (p = s; *p; ++p) | |
579 | *p = tolower (*p); | |
580 | ||
581 | return s; | |
c115973b | 582 | } |
cb637678 | 583 | |
42120bc7 | 584 | |
82641697 GM |
585 | /* Signal `error' with message S, and additional argument ARG. */ |
586 | ||
587 | static void | |
588 | signal_error (s, arg) | |
589 | char *s; | |
590 | Lisp_Object arg; | |
42120bc7 | 591 | { |
82641697 GM |
592 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
593 | } | |
42120bc7 | 594 | |
82641697 GM |
595 | |
596 | /* Display a message with format string FORMAT and arguments ARG1 and | |
597 | ARG2 on frame F. Used to display errors if fonts, bitmaps, colors | |
598 | etc. for a realized face on frame F cannot be loaded. (If we would | |
599 | signal an error in these cases, we would end up in an infinite | |
600 | recursion because this would stop realization, and the redisplay | |
601 | triggered by the signal would try to realize that same face again.) | |
602 | ||
603 | If basic faces of F are not realized, just add the message to the | |
604 | messages buffer "*Messages*". Because Fmessage calls | |
605 | echo_area_display which tries to realize basic faces again, we would | |
606 | otherwise also end in an infinite recursion. */ | |
607 | ||
608 | static void | |
7dbdfcf8 | 609 | add_to_log (f, format, arg1, arg2) |
82641697 GM |
610 | struct frame *f; |
611 | char *format; | |
612 | Lisp_Object arg1, arg2; | |
613 | { | |
614 | Lisp_Object args[3]; | |
615 | Lisp_Object nargs; | |
7dbdfcf8 GM |
616 | Lisp_Object msg; |
617 | char *buffer; | |
82641697 GM |
618 | extern int waiting_for_input; |
619 | ||
620 | /* Function note_mouse_highlight calls face_at_buffer_position which | |
621 | may realize a face. If some attribute of that face is invalid, | |
622 | say an invalid color, don't display an error to avoid calling | |
623 | Lisp from XTread_socket. */ | |
624 | if (waiting_for_input) | |
625 | return; | |
626 | ||
627 | nargs = make_number (DIM (args)); | |
628 | args[0] = build_string (format); | |
629 | args[1] = arg1; | |
630 | args[2] = arg2; | |
7dbdfcf8 GM |
631 | msg = Fformat (nargs, args); |
632 | ||
633 | /* Log the error, but don't display it in the echo area. This | |
634 | proves to be annoying in many cases. */ | |
635 | buffer = LSTRDUPA (msg); | |
636 | message_dolog (buffer, strlen (buffer), 1, 0); | |
82641697 | 637 | } |
42120bc7 | 638 | |
82641697 | 639 | |
c0617987 GM |
640 | /* If FRAME is nil, return a pointer to the selected frame. |
641 | Otherwise, check that FRAME is a live frame, and return a pointer | |
642 | to it. NPARAM is the parameter number of FRAME, for | |
643 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
644 | Lisp function definitions. */ | |
82641697 GM |
645 | |
646 | static INLINE struct frame * | |
647 | frame_or_selected_frame (frame, nparam) | |
648 | Lisp_Object frame; | |
649 | int nparam; | |
650 | { | |
82641697 | 651 | if (NILP (frame)) |
c0617987 GM |
652 | frame = selected_frame; |
653 | ||
654 | CHECK_LIVE_FRAME (frame, nparam); | |
655 | return XFRAME (frame); | |
42120bc7 | 656 | } |
82641697 | 657 | |
42120bc7 | 658 | \f |
82641697 GM |
659 | /*********************************************************************** |
660 | Frames and faces | |
661 | ***********************************************************************/ | |
cd0bb842 | 662 | |
82641697 | 663 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 664 | |
82641697 GM |
665 | void |
666 | init_frame_faces (f) | |
cb637678 | 667 | struct frame *f; |
cb637678 | 668 | { |
82641697 GM |
669 | /* Make a face cache, if F doesn't have one. */ |
670 | if (FRAME_FACE_CACHE (f) == NULL) | |
671 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
672 | ||
673 | #ifdef HAVE_X_WINDOWS | |
674 | /* Make the image cache. */ | |
675 | if (FRAME_X_P (f)) | |
676 | { | |
677 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
678 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
679 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
680 | } | |
681 | #endif /* HAVE_X_WINDOWS */ | |
cb637678 | 682 | |
82641697 GM |
683 | /* Realize basic faces. Must have enough information in frame |
684 | parameters to realize basic faces at this point. */ | |
685 | #ifdef HAVE_X_WINDOWS | |
686 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
687 | #endif | |
688 | if (!realize_basic_faces (f)) | |
689 | abort (); | |
690 | } | |
cb637678 | 691 | |
cb637678 | 692 | |
82641697 | 693 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 694 | |
82641697 GM |
695 | void |
696 | free_frame_faces (f) | |
cb637678 | 697 | struct frame *f; |
cb637678 | 698 | { |
82641697 GM |
699 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
700 | ||
701 | if (face_cache) | |
702 | { | |
703 | free_face_cache (face_cache); | |
704 | FRAME_FACE_CACHE (f) = NULL; | |
705 | } | |
660ed669 | 706 | |
82641697 GM |
707 | #ifdef HAVE_X_WINDOWS |
708 | if (FRAME_X_P (f)) | |
195f798e | 709 | { |
82641697 GM |
710 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
711 | if (image_cache) | |
195f798e | 712 | { |
82641697 GM |
713 | --image_cache->refcount; |
714 | if (image_cache->refcount == 0) | |
715 | free_image_cache (f); | |
195f798e RS |
716 | } |
717 | } | |
82641697 | 718 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
719 | } |
720 | ||
82641697 | 721 | |
8bd201d6 GM |
722 | /* Clear face caches, and recompute basic faces for frame F. Call |
723 | this after changing frame parameters on which those faces depend, | |
724 | or when realized faces have been freed due to changing attributes | |
725 | of named faces. */ | |
82641697 GM |
726 | |
727 | void | |
728 | recompute_basic_faces (f) | |
cb637678 | 729 | struct frame *f; |
cb637678 | 730 | { |
82641697 GM |
731 | if (FRAME_FACE_CACHE (f)) |
732 | { | |
8bd201d6 GM |
733 | int realized_p; |
734 | clear_face_cache (0); | |
735 | realized_p = realize_basic_faces (f); | |
82641697 GM |
736 | xassert (realized_p); |
737 | } | |
738 | } | |
cb637678 | 739 | |
cb637678 | 740 | |
82641697 GM |
741 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
742 | try to free unused fonts, too. */ | |
cb637678 | 743 | |
adfea139 | 744 | void |
82641697 GM |
745 | clear_face_cache (clear_fonts_p) |
746 | int clear_fonts_p; | |
cb637678 | 747 | { |
82641697 GM |
748 | #ifdef HAVE_X_WINDOWS |
749 | Lisp_Object tail, frame; | |
750 | struct frame *f; | |
828e66d1 | 751 | |
82641697 GM |
752 | if (clear_fonts_p |
753 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 754 | { |
82641697 GM |
755 | /* From time to time see if we can unload some fonts. This also |
756 | frees all realized faces on all frames. Fonts needed by | |
757 | faces will be loaded again when faces are realized again. */ | |
758 | clear_font_table_count = 0; | |
195f798e | 759 | |
82641697 | 760 | FOR_EACH_FRAME (tail, frame) |
195f798e | 761 | { |
82641697 GM |
762 | f = XFRAME (frame); |
763 | if (FRAME_X_P (f) | |
764 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
195f798e | 765 | { |
82641697 GM |
766 | free_all_realized_faces (frame); |
767 | clear_font_table (f); | |
768 | } | |
769 | } | |
770 | } | |
771 | else | |
772 | { | |
773 | /* Clear GCs of realized faces. */ | |
774 | FOR_EACH_FRAME (tail, frame) | |
775 | { | |
776 | f = XFRAME (frame); | |
777 | if (FRAME_X_P (f)) | |
778 | { | |
779 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
780 | clear_image_cache (f, 0); | |
195f798e RS |
781 | } |
782 | } | |
828e66d1 | 783 | } |
82641697 | 784 | #endif /* HAVE_X_WINDOWS */ |
cd0bb842 RS |
785 | } |
786 | ||
82641697 GM |
787 | |
788 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
789 | "Clear face caches on all frames.\n\ | |
790 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
791 | (thorougly) | |
792 | Lisp_Object thorougly; | |
cd0bb842 | 793 | { |
82641697 GM |
794 | clear_face_cache (!NILP (thorougly)); |
795 | return Qnil; | |
796 | } | |
797 | ||
798 | ||
799 | ||
800 | #ifdef HAVE_X_WINDOWS | |
801 | ||
802 | ||
803 | /* Remove those fonts from the font table of frame F that are not used | |
804 | by fontsets. Called from clear_face_cache from time to time. */ | |
805 | ||
806 | static void | |
807 | clear_font_table (f) | |
808 | struct frame *f; | |
809 | { | |
810 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
811 | char *used; | |
812 | Lisp_Object rest, frame; | |
813 | int i; | |
814 | ||
815 | xassert (FRAME_X_P (f)); | |
816 | ||
817 | used = (char *) alloca (dpyinfo->n_fonts * sizeof *used); | |
818 | bzero (used, dpyinfo->n_fonts * sizeof *used); | |
819 | ||
820 | /* For all frames with the same x_display_info as F, record | |
821 | in `used' those fonts that are in use by fontsets. */ | |
822 | FOR_EACH_FRAME (rest, frame) | |
823 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
824 | { | |
825 | struct frame *f = XFRAME (frame); | |
826 | struct fontset_data *fontset_data = FRAME_FONTSET_DATA (f); | |
827 | ||
828 | for (i = 0; i < fontset_data->n_fontsets; ++i) | |
829 | { | |
830 | struct fontset_info *info = fontset_data->fontset_table[i]; | |
831 | int j; | |
832 | ||
833 | for (j = 0; j <= MAX_CHARSET; ++j) | |
834 | { | |
835 | int idx = info->font_indexes[j]; | |
836 | if (idx >= 0) | |
837 | used[idx] = 1; | |
838 | } | |
839 | } | |
840 | } | |
841 | ||
842 | /* Free those fonts that are not used by fontsets. */ | |
843 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
844 | if (used[i] == 0 && dpyinfo->font_table[i].name) | |
845 | { | |
846 | struct font_info *font_info = dpyinfo->font_table + i; | |
847 | ||
848 | /* Free names. In xfns.c there is a comment that full_name | |
849 | should never be freed because it is always shared with | |
850 | something else. I don't think this is true anymore---see | |
851 | x_load_font. It's either equal to font_info->name or | |
852 | allocated via xmalloc, and there seems to be no place in | |
853 | the source files where full_name is transferred to another | |
854 | data structure. */ | |
855 | if (font_info->full_name != font_info->name) | |
856 | xfree (font_info->full_name); | |
857 | xfree (font_info->name); | |
858 | ||
859 | /* Free the font. */ | |
860 | BLOCK_INPUT; | |
861 | XFreeFont (dpyinfo->display, font_info->font); | |
862 | UNBLOCK_INPUT; | |
863 | ||
864 | /* Mark font table slot free. */ | |
865 | font_info->font = NULL; | |
866 | font_info->name = font_info->full_name = NULL; | |
867 | } | |
868 | } | |
869 | ||
870 | ||
871 | #endif /* HAVE_X_WINDOWS */ | |
872 | ||
873 | ||
874 | \f | |
875 | /*********************************************************************** | |
876 | X Pixmaps | |
877 | ***********************************************************************/ | |
878 | ||
879 | #ifdef HAVE_X_WINDOWS | |
880 | ||
881 | DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, | |
882 | "Non-nil if OBJECT is a valid pixmap specification.\n\ | |
883 | A pixmap specification is either a string, or a list (WIDTH HEIGHT DATA)\n\ | |
884 | where WIDTH is the pixel width of the pixmap, HEIGHT is its height,\n\ | |
885 | and DATA contains the bits of the pixmap.") | |
886 | (object) | |
887 | Lisp_Object object; | |
888 | { | |
889 | Lisp_Object height, width; | |
cd0bb842 | 890 | |
ed791d5b EN |
891 | return ((STRINGP (object) |
892 | || (CONSP (object) | |
893 | && CONSP (XCONS (object)->cdr) | |
894 | && CONSP (XCONS (XCONS (object)->cdr)->cdr) | |
895 | && NILP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->cdr) | |
896 | && (width = XCONS (object)->car, INTEGERP (width)) | |
82641697 GM |
897 | && (height = XCONS (XCONS (object)->cdr)->car, |
898 | INTEGERP (height)) | |
ed791d5b | 899 | && STRINGP (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car) |
cd0bb842 RS |
900 | && XINT (width) > 0 |
901 | && XINT (height) > 0 | |
902 | /* The string must have enough bits for width * height. */ | |
ed791d5b | 903 | && ((XSTRING (XCONS (XCONS (XCONS (object)->cdr)->cdr)->car)->size |
68be917d | 904 | * (BITS_PER_INT / sizeof (int))) |
e1befa75 | 905 | >= XFASTINT (width) * XFASTINT (height)))) |
cd0bb842 RS |
906 | ? Qt : Qnil); |
907 | } | |
908 | ||
cd0bb842 | 909 | |
82641697 GM |
910 | /* Load a bitmap according to NAME (which is either a file name or a |
911 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
912 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
913 | bitmap cannot be loaded, display a message saying so, and return | |
914 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
915 | if these pointers are not null. */ | |
cd0bb842 | 916 | |
82641697 | 917 | static int |
cd0bb842 | 918 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 919 | FRAME_PTR f; |
cd0bb842 RS |
920 | Lisp_Object name; |
921 | unsigned int *w_ptr, *h_ptr; | |
922 | { | |
923 | int bitmap_id; | |
924 | Lisp_Object tem; | |
925 | ||
926 | if (NILP (name)) | |
82641697 | 927 | return 0; |
cd0bb842 RS |
928 | |
929 | tem = Fpixmap_spec_p (name); | |
930 | if (NILP (tem)) | |
931 | wrong_type_argument (Qpixmap_spec_p, name); | |
932 | ||
933 | BLOCK_INPUT; | |
cd0bb842 RS |
934 | if (CONSP (name)) |
935 | { | |
936 | /* Decode a bitmap spec into a bitmap. */ | |
937 | ||
938 | int h, w; | |
939 | Lisp_Object bits; | |
940 | ||
941 | w = XINT (Fcar (name)); | |
942 | h = XINT (Fcar (Fcdr (name))); | |
943 | bits = Fcar (Fcdr (Fcdr (name))); | |
944 | ||
945 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
946 | w, h); | |
947 | } | |
948 | else | |
949 | { | |
950 | /* It must be a string -- a file name. */ | |
951 | bitmap_id = x_create_bitmap_from_file (f, name); | |
952 | } | |
953 | UNBLOCK_INPUT; | |
954 | ||
7812a96f | 955 | if (bitmap_id < 0) |
82641697 | 956 | { |
7dbdfcf8 | 957 | add_to_log (f, "Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 958 | bitmap_id = 0; |
cd0bb842 | 959 | |
82641697 GM |
960 | if (w_ptr) |
961 | *w_ptr = 0; | |
962 | if (h_ptr) | |
963 | *h_ptr = 0; | |
964 | } | |
965 | else | |
966 | { | |
967 | #if GLYPH_DEBUG | |
968 | ++npixmaps_allocated; | |
969 | #endif | |
970 | if (w_ptr) | |
971 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
972 | ||
973 | if (h_ptr) | |
974 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
975 | } | |
cd0bb842 RS |
976 | |
977 | return bitmap_id; | |
cb637678 | 978 | } |
87485d6f | 979 | |
82641697 GM |
980 | #endif /* HAVE_X_WINDOWS */ |
981 | ||
87485d6f | 982 | |
82641697 GM |
983 | \f |
984 | /*********************************************************************** | |
985 | Minimum font bounds | |
986 | ***********************************************************************/ | |
987 | ||
988 | #ifdef HAVE_X_WINDOWS | |
989 | ||
d6fc0a22 GM |
990 | /* Update the line_height of frame F. Return non-zero if line height |
991 | changes. */ | |
87485d6f | 992 | |
82641697 GM |
993 | int |
994 | frame_update_line_height (f) | |
87485d6f | 995 | struct frame *f; |
87485d6f | 996 | { |
d6fc0a22 GM |
997 | int fontset, line_height, changed_p; |
998 | ||
999 | fontset = f->output_data.x->fontset; | |
1000 | if (fontset > 0) | |
1001 | line_height = FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height; | |
1002 | else | |
1003 | line_height = FONT_HEIGHT (f->output_data.x->font); | |
1004 | ||
1005 | changed_p = line_height != f->output_data.x->line_height; | |
1006 | f->output_data.x->line_height = line_height; | |
82641697 | 1007 | return changed_p; |
87485d6f MW |
1008 | } |
1009 | ||
82641697 GM |
1010 | #endif /* HAVE_X_WINDOWS */ |
1011 | ||
1012 | \f | |
1013 | /*********************************************************************** | |
1014 | Fonts | |
1015 | ***********************************************************************/ | |
1016 | ||
1017 | #ifdef HAVE_X_WINDOWS | |
1018 | ||
1019 | /* Load font or fontset of face FACE which is used on frame F. | |
1020 | FONTSET is the fontset FACE should use or -1, if FACE doesn't use a | |
1021 | fontset. FONT_NAME is the name of the font to load, if no fontset | |
1022 | is used. It is null if no suitable font name could be determined | |
1023 | for the face. */ | |
1024 | ||
1025 | static void | |
1026 | load_face_font_or_fontset (f, face, font_name, fontset) | |
1027 | struct frame *f; | |
1028 | struct face *face; | |
1029 | char *font_name; | |
1030 | int fontset; | |
87485d6f | 1031 | { |
82641697 GM |
1032 | struct font_info *font_info = NULL; |
1033 | ||
1034 | face->font_info_id = -1; | |
1035 | face->fontset = fontset; | |
1036 | face->font = NULL; | |
1037 | ||
1038 | BLOCK_INPUT; | |
1039 | if (fontset >= 0) | |
1040 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
1041 | NULL, fontset); | |
1042 | else if (font_name) | |
1043 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), face->charset, | |
1044 | font_name, -1); | |
1045 | UNBLOCK_INPUT; | |
1046 | ||
1047 | if (font_info) | |
1048 | { | |
1049 | char *s; | |
1050 | int i; | |
1051 | ||
1052 | face->font_info_id = FONT_INFO_ID (f, font_info); | |
1053 | face->font = font_info->font; | |
1054 | face->font_name = font_info->full_name; | |
1055 | ||
1056 | /* Make the registry part of the font name readily accessible. | |
1057 | The registry is used to find suitable faces for unibyte text. */ | |
1058 | s = font_info->full_name + strlen (font_info->full_name); | |
1059 | i = 0; | |
1060 | while (i < 2 && --s >= font_info->full_name) | |
1061 | if (*s == '-') | |
1062 | ++i; | |
1063 | ||
1064 | if (!STRINGP (face->registry) | |
1065 | || xstricmp (XSTRING (face->registry)->data, s + 1) != 0) | |
1066 | { | |
1067 | if (STRINGP (Vface_default_registry) | |
1068 | && !xstricmp (XSTRING (Vface_default_registry)->data, s + 1)) | |
1069 | face->registry = Vface_default_registry; | |
1070 | else | |
1071 | face->registry = build_string (s + 1); | |
1072 | } | |
1073 | } | |
1074 | else if (fontset >= 0) | |
7dbdfcf8 GM |
1075 | add_to_log (f, "Unable to load ASCII font of fontset %d", |
1076 | make_number (fontset), Qnil); | |
82641697 | 1077 | else if (font_name) |
7dbdfcf8 GM |
1078 | add_to_log (f, "Unable to load font %s", |
1079 | build_string (font_name), Qnil); | |
87485d6f MW |
1080 | } |
1081 | ||
82641697 | 1082 | #endif /* HAVE_X_WINDOWS */ |
87485d6f | 1083 | |
87485d6f | 1084 | |
82641697 GM |
1085 | \f |
1086 | /*********************************************************************** | |
1087 | X Colors | |
1088 | ***********************************************************************/ | |
1089 | ||
1090 | #ifdef HAVE_X_WINDOWS | |
1091 | ||
1092 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or | |
1093 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1094 | ||
1095 | static int | |
1096 | face_color_gray_p (f, color_name) | |
1097 | struct frame *f; | |
1098 | char *color_name; | |
1099 | { | |
1100 | XColor color; | |
1101 | int gray_p; | |
1102 | ||
1103 | if (defined_color (f, color_name, &color, 0)) | |
1104 | gray_p = ((abs (color.red - color.green) | |
1105 | < max (color.red, color.green) / 20) | |
1106 | && (abs (color.green - color.blue) | |
1107 | < max (color.green, color.blue) / 20) | |
1108 | && (abs (color.blue - color.red) | |
1109 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1110 | else |
82641697 GM |
1111 | gray_p = 0; |
1112 | ||
1113 | return gray_p; | |
87485d6f | 1114 | } |
87485d6f | 1115 | |
cb637678 | 1116 | |
82641697 GM |
1117 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1118 | BACKGROUND_P non-zero means the color will be used as background | |
1119 | color. */ | |
1120 | ||
1121 | static int | |
1122 | face_color_supported_p (f, color_name, background_p) | |
1123 | struct frame *f; | |
1124 | char *color_name; | |
1125 | int background_p; | |
1126 | { | |
1127 | Lisp_Object frame; | |
1128 | ||
1129 | XSETFRAME (frame, f); | |
1130 | return (!NILP (Vwindow_system) | |
1131 | && (!NILP (Fx_display_color_p (frame)) | |
1132 | || xstricmp (color_name, "black") == 0 | |
1133 | || xstricmp (color_name, "white") == 0 | |
1134 | || (background_p | |
1135 | && face_color_gray_p (f, color_name)) | |
1136 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1137 | && face_color_gray_p (f, color_name)))); | |
1138 | } | |
1139 | ||
1140 | ||
1141 | DEFUN ("face-color-gray-p", Fface_color_gray_p, Sface_color_gray_p, 1, 2, 0, | |
1142 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ | |
1143 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1144 | If FRAME is nil or omitted, use the selected frame.") | |
1145 | (color, frame) | |
1146 | Lisp_Object color, frame; | |
cb637678 | 1147 | { |
82641697 GM |
1148 | struct frame *f = check_x_frame (frame); |
1149 | CHECK_STRING (color, 0); | |
1150 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; | |
1151 | } | |
660ed669 | 1152 | |
fffc2367 | 1153 | |
82641697 GM |
1154 | DEFUN ("face-color-supported-p", Fface_color_supported_p, |
1155 | Sface_color_supported_p, 2, 3, 0, | |
1156 | "Return non-nil if COLOR can be displayed on FRAME.\n\ | |
1157 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1158 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1159 | COLOR must be a valid color name.") | |
1160 | (frame, color, background_p) | |
1161 | Lisp_Object frame, color, background_p; | |
1162 | { | |
1163 | struct frame *f = check_x_frame (frame); | |
1164 | CHECK_STRING (color, 0); | |
1165 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) | |
1166 | return Qt; | |
1167 | return Qnil; | |
1168 | } | |
7b37f67b | 1169 | |
82641697 GM |
1170 | /* Load color with name NAME for use by face FACE on frame F. |
1171 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1172 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1173 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1174 | pixel color. If color cannot be loaded, display a message, and | |
1175 | return the foreground, background or underline color of F, but | |
1176 | record that fact in flags of the face so that we don't try to free | |
1177 | these colors. */ | |
1178 | ||
44747bd0 | 1179 | unsigned long |
82641697 GM |
1180 | load_color (f, face, name, target_index) |
1181 | struct frame *f; | |
1182 | struct face *face; | |
1183 | Lisp_Object name; | |
1184 | enum lface_attribute_index target_index; | |
1185 | { | |
1186 | XColor color; | |
1187 | ||
1188 | xassert (STRINGP (name)); | |
1189 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1190 | || target_index == LFACE_BACKGROUND_INDEX | |
1191 | || target_index == LFACE_UNDERLINE_INDEX | |
1192 | || target_index == LFACE_OVERLINE_INDEX | |
1193 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1194 | || target_index == LFACE_BOX_INDEX); | |
1195 | ||
1196 | /* if the color map is full, defined_color will return a best match | |
1197 | to the values in an existing cell. */ | |
1198 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1199 | { | |
7dbdfcf8 | 1200 | add_to_log (f, "Unable to load color %s", name, Qnil); |
82641697 GM |
1201 | |
1202 | switch (target_index) | |
1120eb5e | 1203 | { |
82641697 GM |
1204 | case LFACE_FOREGROUND_INDEX: |
1205 | face->foreground_defaulted_p = 1; | |
1206 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1207 | break; | |
1208 | ||
1209 | case LFACE_BACKGROUND_INDEX: | |
1210 | face->background_defaulted_p = 1; | |
1211 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1212 | break; | |
1213 | ||
1214 | case LFACE_UNDERLINE_INDEX: | |
1215 | face->underline_defaulted_p = 1; | |
1216 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1217 | break; | |
1218 | ||
1219 | case LFACE_OVERLINE_INDEX: | |
1220 | face->overline_color_defaulted_p = 1; | |
1221 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1222 | break; |
82641697 GM |
1223 | |
1224 | case LFACE_STRIKE_THROUGH_INDEX: | |
1225 | face->strike_through_color_defaulted_p = 1; | |
1226 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1227 | break; | |
1228 | ||
1229 | case LFACE_BOX_INDEX: | |
1230 | face->box_color_defaulted_p = 1; | |
1231 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1232 | break; | |
1233 | ||
1234 | default: | |
1235 | abort (); | |
1120eb5e | 1236 | } |
82641697 GM |
1237 | } |
1238 | #if GLYPH_DEBUG | |
1239 | else | |
1240 | ++ncolors_allocated; | |
1241 | #endif | |
1242 | ||
1243 | return color.pixel; | |
1244 | } | |
1120eb5e | 1245 | |
1120eb5e | 1246 | |
82641697 GM |
1247 | /* Load colors for face FACE which is used on frame F. Colors are |
1248 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1249 | of ATTRS. If the background color specified is not supported on F, | |
1250 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1251 | ||
1252 | static void | |
1253 | load_face_colors (f, face, attrs) | |
1254 | struct frame *f; | |
1255 | struct face *face; | |
1256 | Lisp_Object *attrs; | |
1257 | { | |
1258 | Lisp_Object fg, bg; | |
1259 | ||
1260 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1261 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1262 | ||
1263 | /* Swap colors if face is inverse-video. */ | |
1264 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1265 | { | |
1266 | Lisp_Object tmp; | |
1267 | tmp = fg; | |
1268 | fg = bg; | |
1269 | bg = tmp; | |
1270 | } | |
1271 | ||
1272 | /* Check for support for foreground, not for background because | |
1273 | face_color_supported_p is smart enough to know that grays are | |
1274 | "supported" as background because we are supposed to use stipple | |
1275 | for them. */ | |
1276 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
1277 | && !NILP (Fpixmap_spec_p (Vface_default_stipple))) | |
1278 | { | |
1279 | x_destroy_bitmap (f, face->stipple); | |
1280 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1281 | &face->pixmap_w, &face->pixmap_h); | |
1282 | } | |
82641697 | 1283 | |
be8a72f4 | 1284 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1285 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1286 | } |
1287 | ||
660ed669 | 1288 | |
82641697 | 1289 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1290 | |
cb637678 | 1291 | void |
82641697 | 1292 | unload_color (f, pixel) |
cb637678 | 1293 | struct frame *f; |
82641697 | 1294 | unsigned long pixel; |
cb637678 | 1295 | { |
42120bc7 | 1296 | Display *dpy = FRAME_X_DISPLAY (f); |
82641697 GM |
1297 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
1298 | ||
1299 | if (pixel == BLACK_PIX_DEFAULT (f) | |
1300 | || pixel == WHITE_PIX_DEFAULT (f)) | |
1301 | return; | |
cb637678 | 1302 | |
660ed669 | 1303 | BLOCK_INPUT; |
82641697 GM |
1304 | |
1305 | /* If display has an immutable color map, freeing colors is not | |
1306 | necessary and some servers don't allow it. So don't do it. */ | |
1307 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
1308 | { | |
1309 | Colormap cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1310 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
1311 | } | |
1312 | ||
1313 | UNBLOCK_INPUT; | |
1314 | } | |
1315 | ||
1316 | ||
1317 | /* Free colors allocated for FACE. */ | |
1318 | ||
1319 | static void | |
1320 | free_face_colors (f, face) | |
1321 | struct frame *f; | |
1322 | struct face *face; | |
1323 | { | |
1324 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
1325 | ||
1326 | /* If display has an immutable color map, freeing colors is not | |
1327 | necessary and some servers don't allow it. So don't do it. */ | |
1328 | if (class != StaticColor | |
1329 | && class != StaticGray | |
1330 | && class != TrueColor) | |
1331 | { | |
1332 | Display *dpy; | |
1333 | Colormap cmap; | |
1334 | ||
1335 | BLOCK_INPUT; | |
1336 | dpy = FRAME_X_DISPLAY (f); | |
1337 | cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1338 | ||
1339 | if (face->foreground != BLACK_PIX_DEFAULT (f) | |
1340 | && face->foreground != WHITE_PIX_DEFAULT (f) | |
1341 | && !face->foreground_defaulted_p) | |
1342 | { | |
1343 | XFreeColors (dpy, cmap, &face->foreground, 1, 0); | |
1344 | IF_DEBUG (--ncolors_allocated); | |
1345 | } | |
1346 | ||
1347 | if (face->background != BLACK_PIX_DEFAULT (f) | |
1348 | && face->background != WHITE_PIX_DEFAULT (f) | |
1349 | && !face->background_defaulted_p) | |
1350 | { | |
1351 | XFreeColors (dpy, cmap, &face->background, 1, 0); | |
1352 | IF_DEBUG (--ncolors_allocated); | |
1353 | } | |
1354 | ||
1355 | if (face->underline_p | |
1356 | && !face->underline_defaulted_p | |
1357 | && face->underline_color != BLACK_PIX_DEFAULT (f) | |
1358 | && face->underline_color != WHITE_PIX_DEFAULT (f)) | |
1359 | { | |
1360 | XFreeColors (dpy, cmap, &face->underline_color, 1, 0); | |
1361 | IF_DEBUG (--ncolors_allocated); | |
1362 | } | |
1363 | ||
1364 | if (face->overline_p | |
1365 | && !face->overline_color_defaulted_p | |
1366 | && face->overline_color != BLACK_PIX_DEFAULT (f) | |
1367 | && face->overline_color != WHITE_PIX_DEFAULT (f)) | |
1368 | { | |
1369 | XFreeColors (dpy, cmap, &face->overline_color, 1, 0); | |
1370 | IF_DEBUG (--ncolors_allocated); | |
1371 | } | |
1372 | ||
1373 | if (face->strike_through_p | |
1374 | && !face->strike_through_color_defaulted_p | |
1375 | && face->strike_through_color != BLACK_PIX_DEFAULT (f) | |
1376 | && face->strike_through_color != WHITE_PIX_DEFAULT (f)) | |
1377 | { | |
1378 | XFreeColors (dpy, cmap, &face->strike_through_color, 1, 0); | |
1379 | IF_DEBUG (--ncolors_allocated); | |
1380 | } | |
1381 | ||
1382 | if (face->box != FACE_NO_BOX | |
1383 | && !face->box_color_defaulted_p | |
1384 | && face->box_color != BLACK_PIX_DEFAULT (f) | |
1385 | && face->box_color != WHITE_PIX_DEFAULT (f)) | |
1386 | { | |
1387 | XFreeColors (dpy, cmap, &face->box_color, 1, 0); | |
1388 | IF_DEBUG (--ncolors_allocated); | |
1389 | } | |
1390 | ||
1391 | UNBLOCK_INPUT; | |
1392 | } | |
1393 | } | |
1394 | ||
44747bd0 EZ |
1395 | #else /* ! HAVE_X_WINDOWS */ |
1396 | ||
1397 | #ifdef MSDOS | |
1398 | unsigned long | |
1399 | load_color (f, face, name, target_index) | |
1400 | struct frame *f; | |
1401 | struct face *face; | |
1402 | Lisp_Object name; | |
1403 | enum lface_attribute_index target_index; | |
1404 | { | |
1405 | Lisp_Object color; | |
1406 | int color_idx = FACE_TTY_DEFAULT_COLOR; | |
1407 | ||
1408 | if (NILP (name)) | |
1409 | return (unsigned long)FACE_TTY_DEFAULT_COLOR; | |
1410 | ||
1411 | CHECK_STRING (name, 0); | |
1412 | ||
1413 | color = Qnil; | |
1414 | if (XSTRING (name)->size && !NILP (Ffboundp (Qmsdos_color_translate))) | |
1415 | { | |
1416 | color = call1 (Qmsdos_color_translate, name); | |
1417 | ||
1418 | if (INTEGERP (color)) | |
1419 | return (unsigned long)XINT (color); | |
1420 | ||
7dbdfcf8 | 1421 | add_to_log (f, "Unable to load color %s", name, Qnil); |
44747bd0 EZ |
1422 | |
1423 | switch (target_index) | |
1424 | { | |
1425 | case LFACE_FOREGROUND_INDEX: | |
1426 | face->foreground_defaulted_p = 1; | |
1427 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1428 | break; | |
1429 | ||
1430 | case LFACE_BACKGROUND_INDEX: | |
1431 | face->background_defaulted_p = 1; | |
1432 | color_idx = FRAME_BACKGROUND_PIXEL (f); | |
1433 | break; | |
1434 | ||
1435 | case LFACE_UNDERLINE_INDEX: | |
1436 | face->underline_defaulted_p = 1; | |
1437 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1438 | break; | |
1439 | ||
1440 | case LFACE_OVERLINE_INDEX: | |
1441 | face->overline_color_defaulted_p = 1; | |
1442 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1443 | break; | |
1444 | ||
1445 | case LFACE_STRIKE_THROUGH_INDEX: | |
1446 | face->strike_through_color_defaulted_p = 1; | |
1447 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1448 | break; | |
1449 | ||
1450 | case LFACE_BOX_INDEX: | |
1451 | face->box_color_defaulted_p = 1; | |
1452 | color_idx = FRAME_FOREGROUND_PIXEL (f); | |
1453 | break; | |
1454 | } | |
1455 | } | |
1456 | else | |
1457 | color_idx = msdos_stdcolor_idx (XSTRING (name)->data); | |
1458 | ||
1459 | return (unsigned long)color_idx; | |
1460 | } | |
1461 | #endif /* MSDOS */ | |
1462 | #endif /* ! HAVE_X_WINDOWS */ | |
82641697 GM |
1463 | |
1464 | ||
1465 | \f | |
1466 | /*********************************************************************** | |
1467 | XLFD Font Names | |
1468 | ***********************************************************************/ | |
1469 | ||
1470 | /* An enumerator for each field of an XLFD font name. */ | |
1471 | ||
1472 | enum xlfd_field | |
1473 | { | |
1474 | XLFD_FOUNDRY, | |
1475 | XLFD_FAMILY, | |
1476 | XLFD_WEIGHT, | |
1477 | XLFD_SLANT, | |
1478 | XLFD_SWIDTH, | |
1479 | XLFD_ADSTYLE, | |
1480 | XLFD_PIXEL_SIZE, | |
1481 | XLFD_POINT_SIZE, | |
1482 | XLFD_RESX, | |
1483 | XLFD_RESY, | |
1484 | XLFD_SPACING, | |
1485 | XLFD_AVGWIDTH, | |
1486 | XLFD_REGISTRY, | |
1487 | XLFD_ENCODING, | |
1488 | XLFD_LAST | |
1489 | }; | |
1490 | ||
1491 | /* An enumerator for each possible slant value of a font. Taken from | |
1492 | the XLFD specification. */ | |
1493 | ||
1494 | enum xlfd_slant | |
1495 | { | |
1496 | XLFD_SLANT_UNKNOWN, | |
1497 | XLFD_SLANT_ROMAN, | |
1498 | XLFD_SLANT_ITALIC, | |
1499 | XLFD_SLANT_OBLIQUE, | |
1500 | XLFD_SLANT_REVERSE_ITALIC, | |
1501 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1502 | XLFD_SLANT_OTHER | |
1503 | }; | |
1504 | ||
1505 | /* Relative font weight according to XLFD documentation. */ | |
1506 | ||
1507 | enum xlfd_weight | |
1508 | { | |
1509 | XLFD_WEIGHT_UNKNOWN, | |
1510 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1511 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1512 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1513 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1514 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1515 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1516 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1517 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1518 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1519 | }; | |
1520 | ||
1521 | /* Relative proportionate width. */ | |
1522 | ||
1523 | enum xlfd_swidth | |
1524 | { | |
1525 | XLFD_SWIDTH_UNKNOWN, | |
1526 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1527 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1528 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1529 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1530 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1531 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1532 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1533 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1534 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1535 | }; | |
1536 | ||
1537 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1538 | names to numeric and symbolic values. */ | |
1539 | ||
1540 | struct table_entry | |
1541 | { | |
1542 | char *name; | |
1543 | int numeric; | |
1544 | Lisp_Object *symbol; | |
1545 | }; | |
1546 | ||
1547 | /* Table of XLFD slant names and their numeric and symbolic | |
1548 | representations. This table must be sorted by slant names in | |
1549 | ascending order. */ | |
1550 | ||
1551 | static struct table_entry slant_table[] = | |
1552 | { | |
1553 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1554 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1555 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1556 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1557 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1558 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1559 | }; | |
1560 | ||
1561 | /* Table of XLFD weight names. This table must be sorted by weight | |
1562 | names in ascending order. */ | |
1563 | ||
1564 | static struct table_entry weight_table[] = | |
1565 | { | |
1566 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1567 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1568 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1569 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1570 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1571 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1572 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1573 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1574 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1575 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1576 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1577 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1578 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1579 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1580 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1581 | }; | |
1582 | ||
1583 | /* Table of XLFD width names. This table must be sorted by width | |
1584 | names in ascending order. */ | |
1585 | ||
1586 | static struct table_entry swidth_table[] = | |
1587 | { | |
1588 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1589 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1590 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1591 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1592 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1593 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1594 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1595 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1596 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1597 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1598 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1599 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1600 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1601 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1602 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1603 | }; | |
1604 | ||
1605 | /* Structure used to hold the result of splitting font names in XLFD | |
1606 | format into their fields. */ | |
1607 | ||
1608 | struct font_name | |
1609 | { | |
1610 | /* The original name which is modified destructively by | |
1611 | split_font_name. The pointer is kept here to be able to free it | |
1612 | if it was allocated from the heap. */ | |
1613 | char *name; | |
1614 | ||
1615 | /* Font name fields. Each vector element points into `name' above. | |
1616 | Fields are NUL-terminated. */ | |
1617 | char *fields[XLFD_LAST]; | |
1618 | ||
1619 | /* Numeric values for those fields that interest us. See | |
1620 | split_font_name for which these are. */ | |
1621 | int numeric[XLFD_LAST]; | |
1622 | }; | |
1623 | ||
1624 | /* The frame in effect when sorting font names. Set temporarily in | |
1625 | sort_fonts so that it is available in font comparison functions. */ | |
1626 | ||
1627 | static struct frame *font_frame; | |
1628 | ||
1629 | /* Order by which font selection chooses fonts. The default values | |
1630 | mean `first, find a best match for the font width, then for the | |
1631 | font height, then for weight, then for slant.' This variable can be | |
1632 | set via set-face-font-sort-order. */ | |
1633 | ||
1634 | static int font_sort_order[4]; | |
1635 | ||
1636 | ||
1637 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1638 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1639 | is a pointer to the matching table entry or null if no table entry | |
1640 | matches. */ | |
1641 | ||
1642 | static struct table_entry * | |
1643 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1644 | struct table_entry *table; | |
1645 | int dim; | |
1646 | struct font_name *font; | |
1647 | int field_index; | |
1648 | { | |
1649 | /* Function split_font_name converts fields to lower-case, so there | |
1650 | is no need to use xstrlwr or xstricmp here. */ | |
1651 | char *s = font->fields[field_index]; | |
1652 | int low, mid, high, cmp; | |
1653 | ||
1654 | low = 0; | |
1655 | high = dim - 1; | |
1656 | ||
1657 | while (low <= high) | |
1658 | { | |
1659 | mid = (low + high) / 2; | |
1660 | cmp = strcmp (table[mid].name, s); | |
1661 | ||
1662 | if (cmp < 0) | |
1663 | low = mid + 1; | |
1664 | else if (cmp > 0) | |
1665 | high = mid - 1; | |
1666 | else | |
1667 | return table + mid; | |
1668 | } | |
1669 | ||
1670 | return NULL; | |
1671 | } | |
1672 | ||
1673 | ||
1674 | /* Return a numeric representation for font name field | |
1675 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1676 | has DIM entries. Value is the numeric value found or DFLT if no | |
1677 | table entry matches. This function is used to translate weight, | |
1678 | slant, and swidth names of XLFD font names to numeric values. */ | |
1679 | ||
1680 | static INLINE int | |
1681 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1682 | struct table_entry *table; | |
1683 | int dim; | |
1684 | struct font_name *font; | |
1685 | int field_index; | |
1686 | int dflt; | |
1687 | { | |
1688 | struct table_entry *p; | |
1689 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1690 | return p ? p->numeric : dflt; | |
1691 | } | |
1692 | ||
1693 | ||
1694 | /* Return a symbolic representation for font name field | |
1695 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1696 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1697 | table entry matches. This function is used to translate weight, | |
1698 | slant, and swidth names of XLFD font names to symbols. */ | |
1699 | ||
1700 | static INLINE Lisp_Object | |
1701 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1702 | struct table_entry *table; | |
1703 | int dim; | |
1704 | struct font_name *font; | |
1705 | int field_index; | |
1706 | int dflt; | |
1707 | { | |
1708 | struct table_entry *p; | |
1709 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1710 | return p ? *p->symbol : dflt; | |
1711 | } | |
1712 | ||
1713 | ||
1714 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1715 | ||
1716 | static INLINE int | |
1717 | xlfd_numeric_slant (font) | |
1718 | struct font_name *font; | |
1719 | { | |
1720 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1721 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1722 | } | |
1723 | ||
1724 | ||
1725 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1726 | ||
1727 | static INLINE Lisp_Object | |
1728 | xlfd_symbolic_slant (font) | |
1729 | struct font_name *font; | |
1730 | { | |
1731 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1732 | font, XLFD_SLANT, Qnormal); | |
1733 | } | |
1734 | ||
1735 | ||
1736 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1737 | ||
1738 | static INLINE int | |
1739 | xlfd_numeric_weight (font) | |
1740 | struct font_name *font; | |
1741 | { | |
1742 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1743 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1744 | } | |
1745 | ||
1746 | ||
1747 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1748 | ||
1749 | static INLINE Lisp_Object | |
1750 | xlfd_symbolic_weight (font) | |
1751 | struct font_name *font; | |
1752 | { | |
1753 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1754 | font, XLFD_WEIGHT, Qnormal); | |
1755 | } | |
1756 | ||
1757 | ||
1758 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1759 | name fields are found in FONT. */ | |
1760 | ||
1761 | static INLINE int | |
1762 | xlfd_numeric_swidth (font) | |
1763 | struct font_name *font; | |
1764 | { | |
1765 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1766 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1767 | } | |
1768 | ||
1769 | ||
1770 | /* Return a symbolic value for the swidth of FONT. */ | |
1771 | ||
1772 | static INLINE Lisp_Object | |
1773 | xlfd_symbolic_swidth (font) | |
1774 | struct font_name *font; | |
1775 | { | |
1776 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1777 | font, XLFD_SWIDTH, Qnormal); | |
1778 | } | |
1779 | ||
1780 | ||
1781 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1782 | entries. Value is a pointer to the matching table entry or null if | |
1783 | no element of TABLE contains SYMBOL. */ | |
1784 | ||
1785 | static struct table_entry * | |
1786 | face_value (table, dim, symbol) | |
1787 | struct table_entry *table; | |
1788 | int dim; | |
1789 | Lisp_Object symbol; | |
1790 | { | |
1791 | int i; | |
1792 | ||
1793 | xassert (SYMBOLP (symbol)); | |
1794 | ||
1795 | for (i = 0; i < dim; ++i) | |
1796 | if (EQ (*table[i].symbol, symbol)) | |
1797 | break; | |
1798 | ||
1799 | return i < dim ? table + i : NULL; | |
1800 | } | |
1801 | ||
1802 | ||
1803 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1804 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1805 | ||
1806 | static INLINE int | |
1807 | face_numeric_value (table, dim, symbol) | |
1808 | struct table_entry *table; | |
1809 | int dim; | |
1810 | Lisp_Object symbol; | |
1811 | { | |
1812 | struct table_entry *p = face_value (table, dim, symbol); | |
1813 | return p ? p->numeric : -1; | |
1814 | } | |
1815 | ||
1816 | ||
1817 | /* Return a numeric value representing the weight specified by Lisp | |
1818 | symbol WEIGHT. Value is one of the enumerators of enum | |
1819 | xlfd_weight. */ | |
1820 | ||
1821 | static INLINE int | |
1822 | face_numeric_weight (weight) | |
1823 | Lisp_Object weight; | |
1824 | { | |
1825 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1826 | } | |
1827 | ||
1828 | ||
1829 | /* Return a numeric value representing the slant specified by Lisp | |
1830 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
1831 | ||
1832 | static INLINE int | |
1833 | face_numeric_slant (slant) | |
1834 | Lisp_Object slant; | |
1835 | { | |
1836 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
1837 | } | |
1838 | ||
1839 | ||
1840 | /* Return a numeric value representing the swidth specified by Lisp | |
1841 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
1842 | ||
1843 | static int | |
1844 | face_numeric_swidth (width) | |
1845 | Lisp_Object width; | |
1846 | { | |
1847 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
1848 | } | |
1849 | ||
1850 | ||
1851 | #ifdef HAVE_X_WINDOWS | |
1852 | ||
1853 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
1854 | ||
1855 | static INLINE int | |
1856 | xlfd_fixed_p (font) | |
1857 | struct font_name *font; | |
1858 | { | |
1859 | /* Function split_font_name converts fields to lower-case, so there | |
1860 | is no need to use tolower here. */ | |
1861 | return *font->fields[XLFD_SPACING] != 'p'; | |
1862 | } | |
1863 | ||
1864 | ||
1865 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
1866 | ||
1867 | The actual height of the font when displayed on F depends on the | |
1868 | resolution of both the font and frame. For example, a 10pt font | |
1869 | designed for a 100dpi display will display larger than 10pt on a | |
1870 | 75dpi display. (It's not unusual to use fonts not designed for the | |
1871 | display one is using. For example, some intlfonts are available in | |
1872 | 72dpi versions, only.) | |
1873 | ||
1874 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
1875 | be determined. */ | |
1876 | ||
1877 | static INLINE int | |
1878 | xlfd_point_size (f, font) | |
1879 | struct frame *f; | |
1880 | struct font_name *font; | |
1881 | { | |
1882 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
1883 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
1884 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
1885 | int real_pt; | |
1886 | ||
1887 | if (font_resy == 0 || font_pt == 0) | |
1888 | real_pt = 0; | |
1889 | else | |
1890 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
1891 | ||
1892 | return real_pt; | |
1893 | } | |
1894 | ||
1895 | ||
1896 | /* Split XLFD font name FONT->name destructively into NUL-terminated, | |
1897 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
1898 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
1899 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
1900 | zero if the font name doesn't have the format we expect. The | |
1901 | expected format is a font name that starts with a `-' and has | |
1902 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
1903 | forms of font names where certain field contents are enclosed in | |
1904 | square brackets. We don't support that, for now. */ | |
1905 | ||
1906 | static int | |
1907 | split_font_name (f, font, numeric_p) | |
1908 | struct frame *f; | |
1909 | struct font_name *font; | |
1910 | int numeric_p; | |
1911 | { | |
1912 | int i = 0; | |
1913 | int success_p; | |
1914 | ||
1915 | if (*font->name == '-') | |
1916 | { | |
1917 | char *p = xstrlwr (font->name) + 1; | |
1918 | ||
1919 | while (i < XLFD_LAST) | |
1920 | { | |
1921 | font->fields[i] = p; | |
1922 | ++i; | |
1923 | ||
1924 | while (*p && *p != '-') | |
1925 | ++p; | |
1926 | ||
1927 | if (*p != '-') | |
1928 | break; | |
1929 | ||
1930 | *p++ = 0; | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | success_p = i == XLFD_LAST; | |
1935 | ||
1936 | /* If requested, and font name was in the expected format, | |
1937 | compute numeric values for some fields. */ | |
1938 | if (numeric_p && success_p) | |
1939 | { | |
1940 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
1941 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
1942 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
1943 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
1944 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
1945 | } | |
1946 | ||
1947 | return success_p; | |
1948 | } | |
1949 | ||
1950 | ||
1951 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
1952 | pointer to the font name, which is allocated via xmalloc. */ | |
1953 | ||
1954 | static char * | |
1955 | build_font_name (font) | |
1956 | struct font_name *font; | |
1957 | { | |
1958 | int i; | |
1959 | int size = 100; | |
1960 | char *font_name = (char *) xmalloc (size); | |
1961 | int total_length = 0; | |
1962 | ||
1963 | for (i = 0; i < XLFD_LAST; ++i) | |
1964 | { | |
1965 | /* Add 1 because of the leading `-'. */ | |
1966 | int len = strlen (font->fields[i]) + 1; | |
1967 | ||
1968 | /* Reallocate font_name if necessary. Add 1 for the final | |
1969 | NUL-byte. */ | |
1970 | if (total_length + len + 1 >= size) | |
1971 | { | |
1972 | int new_size = max (2 * size, size + len + 1); | |
1973 | int sz = new_size * sizeof *font_name; | |
1974 | font_name = (char *) xrealloc (font_name, sz); | |
1975 | size = new_size; | |
1976 | } | |
1977 | ||
1978 | font_name[total_length] = '-'; | |
1979 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
1980 | total_length += len; | |
1981 | } | |
1982 | ||
1983 | font_name[total_length] = 0; | |
1984 | return font_name; | |
1985 | } | |
1986 | ||
1987 | ||
1988 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
1989 | itself and all `name' fields in its elements. */ | |
1990 | ||
1991 | static INLINE void | |
1992 | free_font_names (fonts, n) | |
1993 | struct font_name *fonts; | |
1994 | int n; | |
1995 | { | |
1996 | while (n) | |
1997 | xfree (fonts[--n].name); | |
1998 | xfree (fonts); | |
1999 | } | |
2000 | ||
2001 | ||
2002 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2003 | elements using qsort and comparison function CMPFN. F is the frame | |
2004 | on which the fonts will be used. The global variable font_frame | |
2005 | is temporarily set to F to make it available in CMPFN. */ | |
2006 | ||
2007 | static INLINE void | |
2008 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2009 | struct frame *f; | |
2010 | struct font_name *fonts; | |
2011 | int nfonts; | |
2012 | int (*cmpfn) P_ ((const void *, const void *)); | |
2013 | { | |
2014 | font_frame = f; | |
2015 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2016 | font_frame = NULL; | |
2017 | } | |
2018 | ||
2019 | ||
2020 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2021 | display in x_display_list. FONTS is a pointer to a vector of | |
2022 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2023 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2024 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2025 | scalable fonts. | |
2026 | ||
2027 | For all fonts found, set FONTS[i].name to the name of the font, | |
2028 | allocated via xmalloc, and split font names into fields. Ignore | |
2029 | fonts that we can't parse. Value is the number of fonts found. | |
2030 | ||
2031 | This is similar to x_list_fonts. The differences are: | |
2032 | ||
2033 | 1. It avoids consing. | |
2034 | 2. It never calls XLoadQueryFont. */ | |
2035 | ||
2036 | static int | |
2037 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2038 | scalable_fonts_p) | |
2039 | struct frame *f; | |
2040 | char *pattern; | |
2041 | struct font_name *fonts; | |
2042 | int nfonts, try_alternatives_p; | |
2043 | int scalable_fonts_p; | |
2044 | { | |
2045 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
2046 | int n, i, j; | |
2047 | char **names; | |
2048 | ||
2049 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2050 | BLOCK_INPUT; | |
2051 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2052 | UNBLOCK_INPUT; | |
2053 | ||
2054 | if (names) | |
2055 | { | |
2056 | /* Make a copy of the font names we got from X, and | |
2057 | split them into fields. */ | |
2058 | for (i = j = 0; i < n; ++i) | |
2059 | { | |
2060 | /* Make a copy of the font name. */ | |
2061 | fonts[j].name = xstrdup (names[i]); | |
2062 | ||
2063 | /* Ignore fonts having a name that we can't parse. */ | |
2064 | if (!split_font_name (f, fonts + j, 1)) | |
2065 | xfree (fonts[j].name); | |
2066 | else if (font_scalable_p (fonts + j)) | |
2067 | { | |
2068 | #if SCALABLE_FONTS | |
2069 | if (!scalable_fonts_p | |
2070 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2071 | xfree (fonts[j].name); | |
2072 | else | |
2073 | ++j; | |
2074 | #else /* !SCALABLE_FONTS */ | |
2075 | /* Always ignore scalable fonts. */ | |
2076 | xfree (fonts[j].name); | |
2077 | #endif /* !SCALABLE_FONTS */ | |
2078 | } | |
2079 | else | |
2080 | ++j; | |
2081 | } | |
2082 | ||
2083 | n = j; | |
2084 | ||
2085 | /* Free font names. */ | |
2086 | BLOCK_INPUT; | |
2087 | XFreeFontNames (names); | |
2088 | UNBLOCK_INPUT; | |
2089 | } | |
2090 | ||
2091 | ||
2092 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2093 | if (n == 0 && try_alternatives_p) | |
2094 | { | |
2095 | Lisp_Object list = Valternate_fontname_alist; | |
2096 | ||
2097 | while (CONSP (list)) | |
2098 | { | |
2099 | Lisp_Object entry = XCAR (list); | |
2100 | if (CONSP (entry) | |
2101 | && STRINGP (XCAR (entry)) | |
2102 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2103 | break; | |
2104 | list = XCDR (list); | |
2105 | } | |
2106 | ||
2107 | if (CONSP (list)) | |
2108 | { | |
2109 | Lisp_Object patterns = XCAR (list); | |
2110 | Lisp_Object name; | |
2111 | ||
2112 | while (CONSP (patterns) | |
2113 | /* If list is screwed up, give up. */ | |
2114 | && (name = XCAR (patterns), | |
2115 | STRINGP (name)) | |
2116 | /* Ignore patterns equal to PATTERN because we tried that | |
2117 | already with no success. */ | |
2118 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2119 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2120 | fonts, nfonts, 0, | |
2121 | scalable_fonts_p), | |
2122 | n == 0))) | |
2123 | patterns = XCDR (patterns); | |
2124 | } | |
2125 | } | |
2126 | ||
2127 | return n; | |
2128 | } | |
2129 | ||
2130 | ||
2131 | /* Determine the first font matching PATTERN on frame F. Return in | |
2132 | *FONT the matching font name, split into fields. Value is non-zero | |
2133 | if a match was found. */ | |
2134 | ||
2135 | static int | |
2136 | first_font_matching (f, pattern, font) | |
2137 | struct frame *f; | |
2138 | char *pattern; | |
2139 | struct font_name *font; | |
2140 | { | |
2141 | int nfonts = 100; | |
2142 | struct font_name *fonts; | |
2143 | ||
2144 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2145 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2146 | ||
2147 | if (nfonts > 0) | |
2148 | { | |
2149 | bcopy (&fonts[0], font, sizeof *font); | |
2150 | ||
2151 | fonts[0].name = NULL; | |
2152 | free_font_names (fonts, nfonts); | |
2153 | } | |
2154 | ||
2155 | return nfonts > 0; | |
2156 | } | |
2157 | ||
2158 | ||
2159 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2160 | using comparison function CMPFN. Value is the number of fonts | |
2161 | found. If value is non-zero, *FONTS is set to a vector of | |
2162 | font_name structures allocated from the heap containing matching | |
2163 | fonts. Each element of *FONTS contains a name member that is also | |
2164 | allocated from the heap. Font names in these structures are split | |
2165 | into fields. Use free_font_names to free such an array. */ | |
2166 | ||
2167 | static int | |
2168 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2169 | struct frame *f; | |
2170 | char *pattern; | |
2171 | int (*cmpfn) P_ ((const void *, const void *)); | |
2172 | struct font_name **fonts; | |
2173 | { | |
2174 | int nfonts; | |
2175 | ||
2176 | /* Get the list of fonts matching pattern. 100 should suffice. */ | |
057df17c GM |
2177 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2178 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2179 | nfonts = XFASTINT (Vfont_list_limit); | |
2180 | ||
82641697 GM |
2181 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2182 | #if SCALABLE_FONTS | |
2183 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2184 | #else | |
2185 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2186 | #endif | |
2187 | ||
2188 | /* Sort the resulting array and return it in *FONTS. If no | |
2189 | fonts were found, make sure to set *FONTS to null. */ | |
2190 | if (nfonts) | |
2191 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2192 | else | |
2193 | { | |
2194 | xfree (*fonts); | |
2195 | *fonts = NULL; | |
2196 | } | |
2197 | ||
2198 | return nfonts; | |
2199 | } | |
2200 | ||
2201 | ||
2202 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2203 | strcmp. Sort order is given by the global variable | |
2204 | font_sort_order. Font names are sorted so that, everything else | |
2205 | being equal, fonts with a resolution closer to that of the frame on | |
2206 | which they are used are listed first. The global variable | |
2207 | font_frame is the frame on which we operate. */ | |
2208 | ||
2209 | static int | |
2210 | cmp_font_names (a, b) | |
2211 | const void *a, *b; | |
2212 | { | |
2213 | struct font_name *x = (struct font_name *) a; | |
2214 | struct font_name *y = (struct font_name *) b; | |
2215 | int cmp; | |
2216 | ||
2217 | /* All strings have been converted to lower-case by split_font_name, | |
2218 | so we can use strcmp here. */ | |
2219 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2220 | if (cmp == 0) | |
2221 | { | |
2222 | int i; | |
2223 | ||
2224 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) | |
2225 | { | |
2226 | int j = font_sort_order[i]; | |
2227 | cmp = x->numeric[j] - y->numeric[j]; | |
2228 | } | |
2229 | ||
2230 | if (cmp == 0) | |
2231 | { | |
2232 | /* Everything else being equal, we prefer fonts with an | |
2233 | y-resolution closer to that of the frame. */ | |
2234 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2235 | int x_resy = x->numeric[XLFD_RESY]; | |
2236 | int y_resy = y->numeric[XLFD_RESY]; | |
2237 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2238 | } | |
2239 | } | |
2240 | ||
2241 | return cmp; | |
2242 | } | |
2243 | ||
2244 | ||
2245 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
2246 | is non-null list fonts matching that pattern. Otherwise, if | |
2247 | REGISTRY_AND_ENCODING is non-null return only fonts with that | |
2248 | registry and encoding, otherwise return fonts of any registry and | |
2249 | encoding. Set *FONTS to a vector of font_name structures allocated | |
2250 | from the heap containing the fonts found. Value is the number of | |
2251 | fonts found. */ | |
2252 | ||
2253 | static int | |
2254 | font_list (f, pattern, family, registry_and_encoding, fonts) | |
2255 | struct frame *f; | |
2256 | char *pattern; | |
2257 | char *family; | |
2258 | char *registry_and_encoding; | |
2259 | struct font_name **fonts; | |
2260 | { | |
2261 | if (pattern == NULL) | |
2262 | { | |
2263 | if (family == NULL) | |
2264 | family = "*"; | |
2265 | ||
2266 | if (registry_and_encoding == NULL) | |
2267 | registry_and_encoding = "*"; | |
2268 | ||
2269 | pattern = (char *) alloca (strlen (family) | |
2270 | + strlen (registry_and_encoding) | |
2271 | + 10); | |
2272 | if (index (family, '-')) | |
2273 | sprintf (pattern, "-%s-*-%s", family, registry_and_encoding); | |
2274 | else | |
2275 | sprintf (pattern, "-*-%s-*-%s", family, registry_and_encoding); | |
2276 | } | |
2277 | ||
2278 | return sorted_font_list (f, pattern, cmp_font_names, fonts); | |
2279 | } | |
2280 | ||
2281 | ||
2282 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2283 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2284 | entries. */ |
2285 | ||
2286 | static void | |
2287 | remove_duplicates (list) | |
2288 | Lisp_Object list; | |
2289 | { | |
2290 | Lisp_Object tail = list; | |
2291 | ||
2292 | while (!NILP (tail) && !NILP (XCDR (tail))) | |
2293 | { | |
2294 | Lisp_Object next = XCDR (tail); | |
2295 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2296 | XCDR (tail) = XCDR (next); | |
2297 | else | |
2298 | tail = XCDR (tail); | |
2299 | } | |
2300 | } | |
2301 | ||
2302 | ||
92610620 | 2303 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2304 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2305 | If FAMILY is omitted or nil, list all families.\n\ | |
2306 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2307 | `?' and `*'.\n\ | |
2308 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2309 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2310 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2311 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2312 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2313 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2314 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2315 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2316 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2317 | The result list is sorted according to the current setting of\n\ |
2318 | the face font sort order.") | |
2319 | (family, frame) | |
2320 | Lisp_Object family, frame; | |
2321 | { | |
2322 | struct frame *f = check_x_frame (frame); | |
2323 | struct font_name *fonts; | |
2324 | int i, nfonts; | |
2325 | Lisp_Object result; | |
2326 | struct gcpro gcpro1; | |
2327 | char *family_pattern; | |
2328 | ||
2329 | if (NILP (family)) | |
2330 | family_pattern = "*"; | |
2331 | else | |
2332 | { | |
2333 | CHECK_STRING (family, 1); | |
2334 | family_pattern = LSTRDUPA (family); | |
2335 | } | |
2336 | ||
2337 | result = Qnil; | |
2338 | GCPRO1 (result); | |
2339 | nfonts = font_list (f, NULL, family_pattern, NULL, &fonts); | |
2340 | for (i = nfonts - 1; i >= 0; --i) | |
2341 | { | |
057df17c GM |
2342 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2343 | char *tem; | |
82641697 GM |
2344 | |
2345 | #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) | |
2346 | ||
2347 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); | |
2348 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2349 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2350 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2351 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2352 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2353 | tem = build_font_name (fonts + i); |
2354 | ASET (v, 6, build_string (tem)); | |
2355 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2356 | fonts[i].fields[XLFD_ENCODING]); | |
2357 | ASET (v, 7, build_string (tem)); | |
2358 | xfree (tem); | |
2359 | ||
82641697 GM |
2360 | result = Fcons (v, result); |
2361 | ||
2362 | #undef ASET | |
2363 | } | |
2364 | ||
2365 | remove_duplicates (result); | |
2366 | free_font_names (fonts, nfonts); | |
2367 | UNGCPRO; | |
2368 | return result; | |
2369 | } | |
2370 | ||
2371 | ||
2372 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2373 | 0, 1, 0, | |
2374 | "Return a list of available font families on FRAME.\n\ | |
2375 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2376 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2377 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2378 | are fixed-pitch.") | |
2379 | (frame) | |
2380 | Lisp_Object frame; | |
2381 | { | |
2382 | struct frame *f = check_x_frame (frame); | |
2383 | int nfonts, i; | |
2384 | struct font_name *fonts; | |
2385 | Lisp_Object result; | |
2386 | struct gcpro gcpro1; | |
057df17c GM |
2387 | int count = specpdl_ptr - specpdl; |
2388 | int limit; | |
2389 | ||
2390 | /* Let's consider all fonts. Increase the limit for matching | |
2391 | fonts until we have them all. */ | |
2392 | for (limit = 500;;) | |
2393 | { | |
2394 | specbind (intern ("font-list-limit"), make_number (limit)); | |
2395 | nfonts = font_list (f, NULL, "*", NULL, &fonts); | |
2396 | ||
2397 | if (nfonts == limit) | |
2398 | { | |
2399 | free_font_names (fonts, nfonts); | |
2400 | limit *= 2; | |
2401 | } | |
2402 | else | |
2403 | break; | |
2404 | } | |
82641697 | 2405 | |
82641697 GM |
2406 | result = Qnil; |
2407 | GCPRO1 (result); | |
2408 | for (i = nfonts - 1; i >= 0; --i) | |
2409 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2410 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2411 | result); | |
2412 | ||
2413 | remove_duplicates (result); | |
2414 | free_font_names (fonts, nfonts); | |
2415 | UNGCPRO; | |
057df17c | 2416 | return unbind_to (count, result); |
82641697 GM |
2417 | } |
2418 | ||
2419 | ||
2420 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2421 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2422 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2423 | the same size as FACE on FRAME.\n\ | |
2424 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2425 | the * character matches any substring, and\n\ | |
2426 | the ? character matches any single character.\n\ | |
2427 | PATTERN is case-insensitive.\n\ | |
2428 | FACE is a face name--a symbol.\n\ | |
2429 | \n\ | |
2430 | The return value is a list of strings, suitable as arguments to\n\ | |
2431 | set-face-font.\n\ | |
2432 | \n\ | |
2433 | Fonts Emacs can't use may or may not be excluded\n\ | |
2434 | even if they match PATTERN and FACE.\n\ | |
2435 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2436 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2437 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2438 | occupied by a character of a font. In that case, return only fonts\n\ | |
2439 | the WIDTH times as wide as FACE on FRAME.") | |
2440 | (pattern, face, frame, maximum, width) | |
2441 | Lisp_Object pattern, face, frame, maximum, width; | |
2442 | { | |
2443 | struct frame *f; | |
2444 | int size; | |
2445 | int maxnames; | |
2446 | ||
2447 | check_x (); | |
2448 | CHECK_STRING (pattern, 0); | |
2449 | ||
2450 | if (NILP (maximum)) | |
2451 | maxnames = 2000; | |
2452 | else | |
2453 | { | |
2454 | CHECK_NATNUM (maximum, 0); | |
2455 | maxnames = XINT (maximum); | |
2456 | } | |
2457 | ||
2458 | if (!NILP (width)) | |
2459 | CHECK_NUMBER (width, 4); | |
2460 | ||
2461 | /* We can't simply call check_x_frame because this function may be | |
2462 | called before any frame is created. */ | |
2463 | f = frame_or_selected_frame (frame, 2); | |
2464 | if (!FRAME_X_P (f)) | |
2465 | { | |
2466 | /* Perhaps we have not yet created any frame. */ | |
2467 | f = NULL; | |
2468 | face = Qnil; | |
2469 | } | |
2470 | ||
2471 | /* Determine the width standard for comparison with the fonts we find. */ | |
2472 | ||
2473 | if (NILP (face)) | |
2474 | size = 0; | |
2475 | else | |
2476 | { | |
2477 | /* This is of limited utility since it works with character | |
2478 | widths. Keep it for compatibility. --gerd. */ | |
2479 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
2480 | struct face *face = FACE_FROM_ID (f, face_id); | |
2481 | ||
2482 | if (face->font) | |
2483 | size = face->font->max_bounds.width; | |
2484 | else | |
2485 | size = FRAME_FONT (f)->max_bounds.width; | |
2486 | ||
2487 | if (!NILP (width)) | |
2488 | size *= XINT (width); | |
2489 | } | |
2490 | ||
2491 | { | |
2492 | Lisp_Object args[2]; | |
2493 | ||
2494 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2495 | if (f == NULL) | |
2496 | /* We don't have to check fontsets. */ | |
2497 | return args[0]; | |
2498 | args[1] = list_fontsets (f, pattern, size); | |
2499 | return Fnconc (2, args); | |
2500 | } | |
2501 | } | |
2502 | ||
2503 | #endif /* HAVE_X_WINDOWS */ | |
2504 | ||
2505 | ||
2506 | \f | |
2507 | /*********************************************************************** | |
2508 | Lisp Faces | |
2509 | ***********************************************************************/ | |
2510 | ||
2511 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2512 | ||
2513 | #define LFACE_FAMILY(LFACE) \ | |
2514 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2515 | #define LFACE_HEIGHT(LFACE) \ | |
2516 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2517 | #define LFACE_WEIGHT(LFACE) \ | |
2518 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2519 | #define LFACE_SLANT(LFACE) \ | |
2520 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2521 | #define LFACE_UNDERLINE(LFACE) \ | |
2522 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2523 | #define LFACE_INVERSE(LFACE) \ | |
2524 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2525 | #define LFACE_FOREGROUND(LFACE) \ | |
2526 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2527 | #define LFACE_BACKGROUND(LFACE) \ | |
2528 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2529 | #define LFACE_STIPPLE(LFACE) \ | |
2530 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2531 | #define LFACE_SWIDTH(LFACE) \ | |
2532 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2533 | #define LFACE_OVERLINE(LFACE) \ | |
2534 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2535 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2536 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2537 | #define LFACE_BOX(LFACE) \ | |
2538 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
2539 | ||
2540 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2541 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2542 | ||
2543 | #define LFACEP(LFACE) \ | |
2544 | (VECTORP (LFACE) \ | |
2545 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2546 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2547 | ||
2548 | ||
2549 | #if GLYPH_DEBUG | |
2550 | ||
2551 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2552 | ||
2553 | static void | |
2554 | check_lface_attrs (attrs) | |
2555 | Lisp_Object *attrs; | |
2556 | { | |
2557 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2558 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2559 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2560 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2561 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2562 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); | |
2563 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
2564 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2565 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2566 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2567 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2568 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2569 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2570 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2571 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2572 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2573 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2574 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2575 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2576 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2577 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2578 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2579 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2580 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2581 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2582 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2583 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2584 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2585 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2586 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2587 | #ifdef HAVE_WINDOW_SYSTEM | |
2588 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2589 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
2590 | || !NILP (Fpixmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); | |
2591 | #endif | |
2592 | } | |
2593 | ||
2594 | ||
2595 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2596 | ||
2597 | static void | |
2598 | check_lface (lface) | |
2599 | Lisp_Object lface; | |
2600 | { | |
2601 | if (!NILP (lface)) | |
2602 | { | |
2603 | xassert (LFACEP (lface)); | |
2604 | check_lface_attrs (XVECTOR (lface)->contents); | |
2605 | } | |
2606 | } | |
2607 | ||
2608 | #else /* GLYPH_DEBUG == 0 */ | |
2609 | ||
2610 | #define check_lface_attrs(attrs) (void) 0 | |
2611 | #define check_lface(lface) (void) 0 | |
2612 | ||
2613 | #endif /* GLYPH_DEBUG == 0 */ | |
2614 | ||
2615 | ||
2616 | /* Return the face definition of FACE_NAME on frame F. F null means | |
2617 | return the global definition. FACE_NAME may be a string or a | |
2618 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2619 | text properties; ediff uses that). If FACE_NAME is an alias for |
2620 | another face, return that face's definition. If SIGNAL_P is | |
2621 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2622 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2623 | name. */ | |
82641697 GM |
2624 | |
2625 | static INLINE Lisp_Object | |
2626 | lface_from_face_name (f, face_name, signal_p) | |
2627 | struct frame *f; | |
2628 | Lisp_Object face_name; | |
2629 | int signal_p; | |
2630 | { | |
92610620 | 2631 | Lisp_Object lface, alias; |
82641697 GM |
2632 | |
2633 | if (STRINGP (face_name)) | |
2634 | face_name = intern (XSTRING (face_name)->data); | |
2635 | ||
92610620 GM |
2636 | /* If FACE_NAME is an alias for another face, return the definition |
2637 | of the aliased face. */ | |
2638 | alias = Fget (face_name, Qface_alias); | |
2639 | if (!NILP (alias)) | |
2640 | face_name = alias; | |
2641 | ||
82641697 GM |
2642 | if (f) |
2643 | lface = assq_no_quit (face_name, f->face_alist); | |
2644 | else | |
2645 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2646 | ||
2647 | if (CONSP (lface)) | |
2648 | lface = XCDR (lface); | |
2649 | else if (signal_p) | |
2650 | signal_error ("Invalid face", face_name); | |
2651 | ||
2652 | check_lface (lface); | |
2653 | return lface; | |
2654 | } | |
2655 | ||
2656 | ||
2657 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2658 | frame F. Store the resulting attributes in ATTRS which must point | |
2659 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2660 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2661 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2662 | ||
2663 | static INLINE int | |
2664 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2665 | struct frame *f; | |
2666 | Lisp_Object face_name; | |
2667 | Lisp_Object *attrs; | |
2668 | int signal_p; | |
2669 | { | |
2670 | Lisp_Object lface; | |
2671 | int success_p; | |
2672 | ||
2673 | lface = lface_from_face_name (f, face_name, signal_p); | |
2674 | if (!NILP (lface)) | |
2675 | { | |
2676 | bcopy (XVECTOR (lface)->contents, attrs, | |
2677 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2678 | success_p = 1; | |
2679 | } | |
2680 | else | |
2681 | success_p = 0; | |
2682 | ||
2683 | return success_p; | |
2684 | } | |
2685 | ||
2686 | ||
2687 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2688 | specified, i.e. are non-nil. */ | |
2689 | ||
2690 | static int | |
2691 | lface_fully_specified_p (attrs) | |
2692 | Lisp_Object *attrs; | |
2693 | { | |
2694 | int i; | |
2695 | ||
2696 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2697 | if (UNSPECIFIEDP (attrs[i])) | |
2698 | break; | |
2699 | ||
2700 | return i == LFACE_VECTOR_SIZE; | |
2701 | } | |
2702 | ||
2703 | ||
2704 | #ifdef HAVE_X_WINDOWS | |
2705 | ||
2706 | /* Set font-related attributes of Lisp face LFACE from XLFD font name | |
2707 | FONT_NAME. If FORCE_P is zero, set only unspecified attributes of | |
2708 | LFACE. Ignore fields of FONT_NAME containing wildcards. Value is | |
2709 | zero if not successful because FONT_NAME was not in a valid format. | |
2710 | A valid format is one that is suitable for split_font_name, see the | |
2711 | comment there. */ | |
2712 | ||
2713 | static int | |
2714 | set_lface_from_font_name (f, lface, font_name, force_p) | |
2715 | struct frame *f; | |
2716 | Lisp_Object lface; | |
2717 | char *font_name; | |
2718 | int force_p; | |
2719 | { | |
2720 | struct font_name font; | |
2721 | char *buffer; | |
2722 | int pt; | |
2723 | int free_font_name_p = 0; | |
2724 | ||
2725 | /* If FONT_NAME contains wildcards, use the first matching font. */ | |
2726 | if (index (font_name, '*') || index (font_name, '?')) | |
2727 | { | |
2728 | if (!first_font_matching (f, font_name, &font)) | |
2729 | return 0; | |
2730 | free_font_name_p = 1; | |
2731 | } | |
2732 | else | |
2733 | { | |
2734 | font.name = STRDUPA (font_name); | |
2735 | if (!split_font_name (f, &font, 1)) | |
2736 | { | |
2737 | /* The font name may be something like `6x13'. Make | |
2738 | sure we use the full name. */ | |
2739 | struct font_info *font_info; | |
2740 | ||
2741 | BLOCK_INPUT; | |
2742 | font_info = fs_load_font (f, FRAME_X_FONT_TABLE (f), | |
2743 | CHARSET_ASCII, font_name, -1); | |
2744 | UNBLOCK_INPUT; | |
2745 | ||
2746 | if (!font_info) | |
2747 | return 0; | |
2748 | ||
2749 | font.name = STRDUPA (font_info->full_name); | |
2750 | split_font_name (f, &font, 1); | |
2751 | } | |
2752 | ||
2753 | /* FONT_NAME should not be a fontset name, here. */ | |
2754 | xassert (xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0); | |
2755 | } | |
2756 | ||
2757 | /* Set attributes only if unspecified, otherwise face defaults for | |
2758 | new frames would never take effect. */ | |
2759 | ||
2760 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2761 | { | |
2762 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
2763 | + strlen (font.fields[XLFD_FOUNDRY]) | |
2764 | + 2); | |
2765 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
2766 | font.fields[XLFD_FAMILY]); | |
2767 | LFACE_FAMILY (lface) = build_string (buffer); | |
2768 | } | |
2769 | ||
2770 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2771 | { | |
2772 | pt = xlfd_point_size (f, &font); | |
2773 | xassert (pt > 0); | |
2774 | LFACE_HEIGHT (lface) = make_number (pt); | |
2775 | } | |
2776 | ||
2777 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
2778 | LFACE_SWIDTH (lface) = xlfd_symbolic_swidth (&font); | |
2779 | ||
2780 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
2781 | LFACE_WEIGHT (lface) = xlfd_symbolic_weight (&font); | |
2782 | ||
2783 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
2784 | LFACE_SLANT (lface) = xlfd_symbolic_slant (&font); | |
2785 | ||
2786 | if (free_font_name_p) | |
2787 | xfree (font.name); | |
2788 | ||
2789 | return 1; | |
2790 | } | |
2791 | ||
2792 | #endif /* HAVE_X_WINDOWS */ | |
2793 | ||
2794 | ||
2795 | /* Merge two Lisp face attribute vectors FROM and TO and store the | |
2796 | resulting attributes in TO. Every non-nil attribute of FROM | |
2797 | overrides the corresponding attribute of TO. */ | |
2798 | ||
2799 | static INLINE void | |
2800 | merge_face_vectors (from, to) | |
2801 | Lisp_Object *from, *to; | |
2802 | { | |
2803 | int i; | |
2804 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2805 | if (!UNSPECIFIEDP (from[i])) | |
2806 | to[i] = from[i]; | |
2807 | } | |
2808 | ||
2809 | ||
2810 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
2811 | is a face property, determine the resulting face attributes on | |
2812 | frame F, and store them in TO. PROP may be a single face | |
2813 | specification or a list of such specifications. Each face | |
2814 | specification can be | |
2815 | ||
2816 | 1. A symbol or string naming a Lisp face. | |
2817 | ||
2818 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
2819 | KEYWORD is a face attribute name, and value is an appropriate value | |
2820 | for that attribute. | |
2821 | ||
2822 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
2823 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
2824 | for compatibility with 20.2. | |
2825 | ||
2826 | Face specifications earlier in lists take precedence over later | |
2827 | specifications. */ | |
2828 | ||
2829 | static void | |
2830 | merge_face_vector_with_property (f, to, prop) | |
2831 | struct frame *f; | |
2832 | Lisp_Object *to; | |
2833 | Lisp_Object prop; | |
2834 | { | |
2835 | if (CONSP (prop)) | |
2836 | { | |
2837 | Lisp_Object first = XCAR (prop); | |
2838 | ||
2839 | if (EQ (first, Qforeground_color) | |
2840 | || EQ (first, Qbackground_color)) | |
2841 | { | |
2842 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
2843 | . COLOR). COLOR must be a string. */ | |
2844 | Lisp_Object color_name = XCDR (prop); | |
2845 | Lisp_Object color = first; | |
2846 | ||
2847 | if (STRINGP (color_name)) | |
2848 | { | |
2849 | if (EQ (color, Qforeground_color)) | |
2850 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
2851 | else | |
2852 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
2853 | } | |
2854 | else | |
7dbdfcf8 | 2855 | add_to_log (f, "Invalid face color", color_name, Qnil); |
82641697 GM |
2856 | } |
2857 | else if (SYMBOLP (first) | |
2858 | && *XSYMBOL (first)->name->data == ':') | |
2859 | { | |
2860 | /* Assume this is the property list form. */ | |
2861 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
2862 | { | |
2863 | Lisp_Object keyword = XCAR (prop); | |
2864 | Lisp_Object value = XCAR (XCDR (prop)); | |
2865 | ||
2866 | if (EQ (keyword, QCfamily)) | |
2867 | { | |
2868 | if (STRINGP (value)) | |
2869 | to[LFACE_FAMILY_INDEX] = value; | |
2870 | else | |
7dbdfcf8 | 2871 | add_to_log (f, "Illegal face font family", value, Qnil); |
82641697 GM |
2872 | } |
2873 | else if (EQ (keyword, QCheight)) | |
2874 | { | |
2875 | if (INTEGERP (value)) | |
2876 | to[LFACE_HEIGHT_INDEX] = value; | |
2877 | else | |
7dbdfcf8 | 2878 | add_to_log (f, "Illegal face font height", value, Qnil); |
82641697 GM |
2879 | } |
2880 | else if (EQ (keyword, QCweight)) | |
2881 | { | |
2882 | if (SYMBOLP (value) | |
2883 | && face_numeric_weight (value) >= 0) | |
2884 | to[LFACE_WEIGHT_INDEX] = value; | |
2885 | else | |
7dbdfcf8 | 2886 | add_to_log (f, "Illegal face weight", value, Qnil); |
82641697 GM |
2887 | } |
2888 | else if (EQ (keyword, QCslant)) | |
2889 | { | |
2890 | if (SYMBOLP (value) | |
2891 | && face_numeric_slant (value) >= 0) | |
2892 | to[LFACE_SLANT_INDEX] = value; | |
2893 | else | |
7dbdfcf8 | 2894 | add_to_log (f, "Illegal face slant", value, Qnil); |
82641697 GM |
2895 | } |
2896 | else if (EQ (keyword, QCunderline)) | |
2897 | { | |
2898 | if (EQ (value, Qt) | |
2899 | || NILP (value) | |
2900 | || STRINGP (value)) | |
2901 | to[LFACE_UNDERLINE_INDEX] = value; | |
2902 | else | |
7dbdfcf8 | 2903 | add_to_log (f, "Illegal face underline", value, Qnil); |
82641697 GM |
2904 | } |
2905 | else if (EQ (keyword, QCoverline)) | |
2906 | { | |
2907 | if (EQ (value, Qt) | |
2908 | || NILP (value) | |
2909 | || STRINGP (value)) | |
2910 | to[LFACE_OVERLINE_INDEX] = value; | |
2911 | else | |
7dbdfcf8 | 2912 | add_to_log (f, "Illegal face overline", value, Qnil); |
82641697 GM |
2913 | } |
2914 | else if (EQ (keyword, QCstrike_through)) | |
2915 | { | |
2916 | if (EQ (value, Qt) | |
2917 | || NILP (value) | |
2918 | || STRINGP (value)) | |
2919 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
2920 | else | |
7dbdfcf8 | 2921 | add_to_log (f, "Illegal face strike-through", value, Qnil); |
82641697 GM |
2922 | } |
2923 | else if (EQ (keyword, QCbox)) | |
2924 | { | |
2925 | if (EQ (value, Qt)) | |
2926 | value = make_number (1); | |
2927 | if (INTEGERP (value) | |
2928 | || STRINGP (value) | |
2929 | || CONSP (value) | |
2930 | || NILP (value)) | |
2931 | to[LFACE_BOX_INDEX] = value; | |
2932 | else | |
7dbdfcf8 | 2933 | add_to_log (f, "Illegal face box", value, Qnil); |
82641697 GM |
2934 | } |
2935 | else if (EQ (keyword, QCinverse_video) | |
2936 | || EQ (keyword, QCreverse_video)) | |
2937 | { | |
2938 | if (EQ (value, Qt) || NILP (value)) | |
2939 | to[LFACE_INVERSE_INDEX] = value; | |
2940 | else | |
7dbdfcf8 | 2941 | add_to_log (f, "Illegal face inverse-video", value, Qnil); |
82641697 GM |
2942 | } |
2943 | else if (EQ (keyword, QCforeground)) | |
2944 | { | |
2945 | if (STRINGP (value)) | |
2946 | to[LFACE_FOREGROUND_INDEX] = value; | |
2947 | else | |
7dbdfcf8 | 2948 | add_to_log (f, "Illegal face foreground", value, Qnil); |
82641697 GM |
2949 | } |
2950 | else if (EQ (keyword, QCbackground)) | |
2951 | { | |
2952 | if (STRINGP (value)) | |
2953 | to[LFACE_BACKGROUND_INDEX] = value; | |
2954 | else | |
7dbdfcf8 | 2955 | add_to_log (f, "Illegal face background", value, Qnil); |
82641697 GM |
2956 | } |
2957 | else if (EQ (keyword, QCstipple)) | |
2958 | { | |
2959 | #ifdef HAVE_X_WINDOWS | |
2960 | Lisp_Object pixmap_p = Fpixmap_spec_p (value); | |
2961 | if (!NILP (pixmap_p)) | |
2962 | to[LFACE_STIPPLE_INDEX] = value; | |
2963 | else | |
7dbdfcf8 | 2964 | add_to_log (f, "Illegal face stipple", value, Qnil); |
82641697 GM |
2965 | #endif |
2966 | } | |
2967 | else if (EQ (keyword, QCwidth)) | |
2968 | { | |
2969 | if (SYMBOLP (value) | |
2970 | && face_numeric_swidth (value) >= 0) | |
2971 | to[LFACE_SWIDTH_INDEX] = value; | |
2972 | else | |
7dbdfcf8 | 2973 | add_to_log (f, "Illegal face width", value, Qnil); |
82641697 GM |
2974 | } |
2975 | else | |
7dbdfcf8 GM |
2976 | add_to_log (f, "Invalid attribute %s in face property", |
2977 | keyword, Qnil); | |
82641697 GM |
2978 | |
2979 | prop = XCDR (XCDR (prop)); | |
2980 | } | |
2981 | } | |
2982 | else | |
2983 | { | |
2984 | /* This is a list of face specs. Specifications at the | |
2985 | beginning of the list take precedence over later | |
2986 | specifications, so we have to merge starting with the | |
2987 | last specification. */ | |
2988 | Lisp_Object next = XCDR (prop); | |
2989 | if (!NILP (next)) | |
2990 | merge_face_vector_with_property (f, to, next); | |
2991 | merge_face_vector_with_property (f, to, first); | |
2992 | } | |
2993 | } | |
2994 | else | |
2995 | { | |
2996 | /* PROP ought to be a face name. */ | |
2997 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
2998 | if (NILP (lface)) | |
7dbdfcf8 | 2999 | add_to_log (f, "Invalid face text property value: %s", prop, Qnil); |
82641697 GM |
3000 | else |
3001 | merge_face_vectors (XVECTOR (lface)->contents, to); | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | ||
3006 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3007 | Sinternal_make_lisp_face, 1, 2, 0, | |
3008 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3009 | If FACE was not known as a face before, create a new one.\n\ | |
3010 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3011 | for that frame. Otherwise operate on the global face definition.\n\ | |
3012 | Value is a vector of face attributes.") | |
3013 | (face, frame) | |
3014 | Lisp_Object face, frame; | |
3015 | { | |
3016 | Lisp_Object global_lface, lface; | |
3017 | struct frame *f; | |
3018 | int i; | |
3019 | ||
3020 | CHECK_SYMBOL (face, 0); | |
3021 | global_lface = lface_from_face_name (NULL, face, 0); | |
3022 | ||
3023 | if (!NILP (frame)) | |
3024 | { | |
3025 | CHECK_LIVE_FRAME (frame, 1); | |
3026 | f = XFRAME (frame); | |
3027 | lface = lface_from_face_name (f, face, 0); | |
3028 | } | |
3029 | else | |
3030 | f = NULL, lface = Qnil; | |
3031 | ||
3032 | /* Add a global definition if there is none. */ | |
3033 | if (NILP (global_lface)) | |
3034 | { | |
3035 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3036 | Qunspecified); | |
3037 | XVECTOR (global_lface)->contents[0] = Qface; | |
3038 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), | |
3039 | Vface_new_frame_defaults); | |
3040 | ||
3041 | /* Assign the new Lisp face a unique ID. The mapping from Lisp | |
3042 | face id to Lisp face is given by the vector lface_id_to_name. | |
3043 | The mapping from Lisp face to Lisp face id is given by the | |
3044 | property `face' of the Lisp face name. */ | |
3045 | if (next_lface_id == lface_id_to_name_size) | |
3046 | { | |
3047 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3048 | int sz = new_size * sizeof *lface_id_to_name; | |
3049 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3050 | lface_id_to_name_size = new_size; | |
3051 | } | |
3052 | ||
3053 | lface_id_to_name[next_lface_id] = face; | |
3054 | Fput (face, Qface, make_number (next_lface_id)); | |
3055 | ++next_lface_id; | |
3056 | } | |
3057 | else if (f == NULL) | |
3058 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3059 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
3060 | ||
3061 | /* Add a frame-local definition. */ | |
3062 | if (f) | |
3063 | { | |
3064 | if (NILP (lface)) | |
3065 | { | |
3066 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3067 | Qunspecified); | |
3068 | XVECTOR (lface)->contents[0] = Qface; | |
3069 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3070 | } | |
3071 | else | |
3072 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3073 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3074 | } | |
3075 | else | |
3076 | lface = global_lface; | |
3077 | ||
3078 | xassert (LFACEP (lface)); | |
3079 | check_lface (lface); | |
3080 | return lface; | |
3081 | } | |
3082 | ||
3083 | ||
3084 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3085 | Sinternal_lisp_face_p, 1, 2, 0, | |
3086 | "Return non-nil if FACE names a face.\n\ | |
3087 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3088 | existence of a frame-local face with name FACE on that frame.\n\ | |
3089 | Otherwise check for the existence of a global face.") | |
3090 | (face, frame) | |
3091 | Lisp_Object face, frame; | |
3092 | { | |
3093 | Lisp_Object lface; | |
3094 | ||
3095 | if (!NILP (frame)) | |
3096 | { | |
3097 | CHECK_LIVE_FRAME (frame, 1); | |
3098 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3099 | } | |
3100 | else | |
3101 | lface = lface_from_face_name (NULL, face, 0); | |
3102 | ||
3103 | return lface; | |
3104 | } | |
3105 | ||
3106 | ||
3107 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3108 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3109 | "Copy face FROM to TO.\n\ | |
3110 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3111 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3112 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3113 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3114 | \n\ | |
3115 | Value is TO.") | |
3116 | (from, to, frame, new_frame) | |
3117 | Lisp_Object from, to, frame, new_frame; | |
3118 | { | |
3119 | Lisp_Object lface, copy; | |
3120 | ||
3121 | CHECK_SYMBOL (from, 0); | |
3122 | CHECK_SYMBOL (to, 1); | |
3123 | if (NILP (new_frame)) | |
3124 | new_frame = frame; | |
3125 | ||
3126 | if (EQ (frame, Qt)) | |
3127 | { | |
3128 | /* Copy global definition of FROM. We don't make copies of | |
3129 | strings etc. because 20.2 didn't do it either. */ | |
3130 | lface = lface_from_face_name (NULL, from, 1); | |
3131 | copy = Finternal_make_lisp_face (to, Qnil); | |
3132 | } | |
3133 | else | |
3134 | { | |
3135 | /* Copy frame-local definition of FROM. */ | |
3136 | CHECK_LIVE_FRAME (frame, 2); | |
3137 | CHECK_LIVE_FRAME (new_frame, 3); | |
3138 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3139 | copy = Finternal_make_lisp_face (to, new_frame); | |
3140 | } | |
3141 | ||
3142 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, | |
3143 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
3144 | ||
3145 | return to; | |
3146 | } | |
3147 | ||
3148 | ||
3149 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3150 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3151 | "Set attribute ATTR of FACE to VALUE.\n\ | |
3152 | If optional argument FRAME is given, set the face attribute of face FACE\n\ | |
3153 | on that frame. If FRAME is t, set the attribute of the default for face\n\ | |
3154 | FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ | |
3155 | frame.") | |
3156 | (face, attr, value, frame) | |
3157 | Lisp_Object face, attr, value, frame; | |
3158 | { | |
3159 | Lisp_Object lface; | |
3160 | Lisp_Object old_value = Qnil; | |
3161 | int font_related_attr_p = 0; | |
3162 | ||
3163 | CHECK_SYMBOL (face, 0); | |
3164 | CHECK_SYMBOL (attr, 1); | |
3165 | ||
3166 | /* Set lface to the Lisp attribute vector of FACE. */ | |
3167 | if (EQ (frame, Qt)) | |
3168 | lface = lface_from_face_name (NULL, face, 1); | |
3169 | else | |
3170 | { | |
3171 | if (NILP (frame)) | |
c0617987 | 3172 | frame = selected_frame; |
82641697 GM |
3173 | |
3174 | CHECK_LIVE_FRAME (frame, 3); | |
3175 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3176 | ||
3177 | /* If a frame-local face doesn't exist yet, create one. */ | |
3178 | if (NILP (lface)) | |
3179 | lface = Finternal_make_lisp_face (face, frame); | |
3180 | } | |
3181 | ||
3182 | if (EQ (attr, QCfamily)) | |
3183 | { | |
3184 | if (!UNSPECIFIEDP (value)) | |
3185 | { | |
3186 | CHECK_STRING (value, 3); | |
3187 | if (XSTRING (value)->size == 0) | |
3188 | signal_error ("Invalid face family", value); | |
3189 | } | |
3190 | old_value = LFACE_FAMILY (lface); | |
3191 | LFACE_FAMILY (lface) = value; | |
3192 | font_related_attr_p = 1; | |
3193 | } | |
3194 | else if (EQ (attr, QCheight)) | |
3195 | { | |
3196 | if (!UNSPECIFIEDP (value)) | |
3197 | { | |
3198 | CHECK_NUMBER (value, 3); | |
3199 | if (XINT (value) <= 0) | |
3200 | signal_error ("Invalid face height", value); | |
3201 | } | |
3202 | old_value = LFACE_HEIGHT (lface); | |
3203 | LFACE_HEIGHT (lface) = value; | |
3204 | font_related_attr_p = 1; | |
3205 | } | |
3206 | else if (EQ (attr, QCweight)) | |
3207 | { | |
3208 | if (!UNSPECIFIEDP (value)) | |
3209 | { | |
3210 | CHECK_SYMBOL (value, 3); | |
3211 | if (face_numeric_weight (value) < 0) | |
3212 | signal_error ("Invalid face weight", value); | |
3213 | } | |
3214 | old_value = LFACE_WEIGHT (lface); | |
3215 | LFACE_WEIGHT (lface) = value; | |
3216 | font_related_attr_p = 1; | |
3217 | } | |
3218 | else if (EQ (attr, QCslant)) | |
3219 | { | |
3220 | if (!UNSPECIFIEDP (value)) | |
3221 | { | |
3222 | CHECK_SYMBOL (value, 3); | |
3223 | if (face_numeric_slant (value) < 0) | |
3224 | signal_error ("Invalid face slant", value); | |
3225 | } | |
3226 | old_value = LFACE_SLANT (lface); | |
3227 | LFACE_SLANT (lface) = value; | |
3228 | font_related_attr_p = 1; | |
3229 | } | |
3230 | else if (EQ (attr, QCunderline)) | |
3231 | { | |
3232 | if (!UNSPECIFIEDP (value)) | |
3233 | if ((SYMBOLP (value) | |
3234 | && !EQ (value, Qt) | |
3235 | && !EQ (value, Qnil)) | |
3236 | /* Underline color. */ | |
3237 | || (STRINGP (value) | |
3238 | && XSTRING (value)->size == 0)) | |
3239 | signal_error ("Invalid face underline", value); | |
3240 | ||
3241 | old_value = LFACE_UNDERLINE (lface); | |
3242 | LFACE_UNDERLINE (lface) = value; | |
3243 | } | |
3244 | else if (EQ (attr, QCoverline)) | |
3245 | { | |
3246 | if (!UNSPECIFIEDP (value)) | |
3247 | if ((SYMBOLP (value) | |
3248 | && !EQ (value, Qt) | |
3249 | && !EQ (value, Qnil)) | |
3250 | /* Overline color. */ | |
3251 | || (STRINGP (value) | |
3252 | && XSTRING (value)->size == 0)) | |
3253 | signal_error ("Invalid face overline", value); | |
3254 | ||
3255 | old_value = LFACE_OVERLINE (lface); | |
3256 | LFACE_OVERLINE (lface) = value; | |
3257 | } | |
3258 | else if (EQ (attr, QCstrike_through)) | |
3259 | { | |
3260 | if (!UNSPECIFIEDP (value)) | |
3261 | if ((SYMBOLP (value) | |
3262 | && !EQ (value, Qt) | |
3263 | && !EQ (value, Qnil)) | |
3264 | /* Strike-through color. */ | |
3265 | || (STRINGP (value) | |
3266 | && XSTRING (value)->size == 0)) | |
3267 | signal_error ("Invalid face strike-through", value); | |
3268 | ||
3269 | old_value = LFACE_STRIKE_THROUGH (lface); | |
3270 | LFACE_STRIKE_THROUGH (lface) = value; | |
3271 | } | |
3272 | else if (EQ (attr, QCbox)) | |
3273 | { | |
3274 | int valid_p; | |
3275 | ||
3276 | /* Allow t meaning a simple box of width 1 in foreground color | |
3277 | of the face. */ | |
3278 | if (EQ (value, Qt)) | |
3279 | value = make_number (1); | |
3280 | ||
3281 | if (UNSPECIFIEDP (value)) | |
3282 | valid_p = 1; | |
3283 | else if (NILP (value)) | |
3284 | valid_p = 1; | |
3285 | else if (INTEGERP (value)) | |
3286 | valid_p = XINT (value) > 0; | |
3287 | else if (STRINGP (value)) | |
3288 | valid_p = XSTRING (value)->size > 0; | |
3289 | else if (CONSP (value)) | |
3290 | { | |
3291 | Lisp_Object tem; | |
3292 | ||
3293 | tem = value; | |
3294 | while (CONSP (tem)) | |
3295 | { | |
3296 | Lisp_Object k, v; | |
3297 | ||
3298 | k = XCAR (tem); | |
3299 | tem = XCDR (tem); | |
3300 | if (!CONSP (tem)) | |
3301 | break; | |
3302 | v = XCAR (tem); | |
3303 | tem = XCDR (tem); | |
3304 | ||
3305 | if (EQ (k, QCline_width)) | |
3306 | { | |
3307 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3308 | break; | |
3309 | } | |
3310 | else if (EQ (k, QCcolor)) | |
3311 | { | |
3312 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3313 | break; | |
3314 | } | |
3315 | else if (EQ (k, QCstyle)) | |
3316 | { | |
3317 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3318 | break; | |
3319 | } | |
3320 | else | |
3321 | break; | |
3322 | } | |
3323 | ||
3324 | valid_p = NILP (tem); | |
3325 | } | |
3326 | else | |
3327 | valid_p = 0; | |
3328 | ||
3329 | if (!valid_p) | |
3330 | signal_error ("Invalid face box", value); | |
3331 | ||
3332 | old_value = LFACE_BOX (lface); | |
3333 | LFACE_BOX (lface) = value; | |
3334 | } | |
3335 | else if (EQ (attr, QCinverse_video) | |
3336 | || EQ (attr, QCreverse_video)) | |
3337 | { | |
3338 | if (!UNSPECIFIEDP (value)) | |
3339 | { | |
3340 | CHECK_SYMBOL (value, 3); | |
3341 | if (!EQ (value, Qt) && !NILP (value)) | |
3342 | signal_error ("Invalid inverse-video face attribute value", value); | |
3343 | } | |
3344 | old_value = LFACE_INVERSE (lface); | |
3345 | LFACE_INVERSE (lface) = value; | |
3346 | } | |
3347 | else if (EQ (attr, QCforeground)) | |
3348 | { | |
3349 | if (!UNSPECIFIEDP (value)) | |
3350 | { | |
3351 | /* Don't check for valid color names here because it depends | |
3352 | on the frame (display) whether the color will be valid | |
3353 | when the face is realized. */ | |
3354 | CHECK_STRING (value, 3); | |
3355 | if (XSTRING (value)->size == 0) | |
3356 | signal_error ("Empty foreground color value", value); | |
3357 | } | |
3358 | old_value = LFACE_FOREGROUND (lface); | |
3359 | LFACE_FOREGROUND (lface) = value; | |
3360 | } | |
3361 | else if (EQ (attr, QCbackground)) | |
3362 | { | |
3363 | if (!UNSPECIFIEDP (value)) | |
3364 | { | |
3365 | /* Don't check for valid color names here because it depends | |
3366 | on the frame (display) whether the color will be valid | |
3367 | when the face is realized. */ | |
3368 | CHECK_STRING (value, 3); | |
3369 | if (XSTRING (value)->size == 0) | |
3370 | signal_error ("Empty background color value", value); | |
3371 | } | |
3372 | old_value = LFACE_BACKGROUND (lface); | |
3373 | LFACE_BACKGROUND (lface) = value; | |
3374 | } | |
3375 | else if (EQ (attr, QCstipple)) | |
3376 | { | |
3377 | #ifdef HAVE_X_WINDOWS | |
3378 | if (!UNSPECIFIEDP (value) | |
3379 | && !NILP (value) | |
3380 | && NILP (Fpixmap_spec_p (value))) | |
3381 | signal_error ("Invalid stipple attribute", value); | |
3382 | old_value = LFACE_STIPPLE (lface); | |
3383 | LFACE_STIPPLE (lface) = value; | |
3384 | #endif /* HAVE_X_WINDOWS */ | |
3385 | } | |
3386 | else if (EQ (attr, QCwidth)) | |
3387 | { | |
3388 | if (!UNSPECIFIEDP (value)) | |
3389 | { | |
3390 | CHECK_SYMBOL (value, 3); | |
3391 | if (face_numeric_swidth (value) < 0) | |
3392 | signal_error ("Invalid face width", value); | |
3393 | } | |
3394 | old_value = LFACE_SWIDTH (lface); | |
3395 | LFACE_SWIDTH (lface) = value; | |
3396 | font_related_attr_p = 1; | |
3397 | } | |
3398 | else if (EQ (attr, QCfont)) | |
3399 | { | |
3400 | #ifdef HAVE_X_WINDOWS | |
3401 | /* Set font-related attributes of the Lisp face from an | |
3402 | XLFD font name. */ | |
3403 | struct frame *f; | |
3404 | ||
3405 | CHECK_STRING (value, 3); | |
3406 | if (EQ (frame, Qt)) | |
c0617987 | 3407 | f = SELECTED_FRAME (); |
82641697 GM |
3408 | else |
3409 | f = check_x_frame (frame); | |
3410 | ||
3411 | if (!set_lface_from_font_name (f, lface, XSTRING (value)->data, 1)) | |
3412 | signal_error ("Invalid font name", value); | |
3413 | ||
3414 | font_related_attr_p = 1; | |
3415 | #endif /* HAVE_X_WINDOWS */ | |
3416 | } | |
3417 | else if (EQ (attr, QCbold)) | |
3418 | { | |
3419 | old_value = LFACE_WEIGHT (lface); | |
3420 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3421 | font_related_attr_p = 1; | |
3422 | } | |
3423 | else if (EQ (attr, QCitalic)) | |
3424 | { | |
3425 | old_value = LFACE_SLANT (lface); | |
3426 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3427 | font_related_attr_p = 1; | |
3428 | } | |
3429 | else | |
3430 | signal_error ("Invalid face attribute name", attr); | |
3431 | ||
3432 | /* Changing a named face means that all realized faces depending on | |
3433 | that face are invalid. Since we cannot tell which realized faces | |
3434 | depend on the face, make sure they are all removed. This is done | |
3435 | by incrementing face_change_count. The next call to | |
3436 | init_iterator will then free realized faces. */ | |
3437 | if (!EQ (frame, Qt) | |
3438 | && (EQ (attr, QCfont) | |
3439 | || NILP (Fequal (old_value, value)))) | |
3440 | { | |
3441 | ++face_change_count; | |
3442 | ++windows_or_buffers_changed; | |
3443 | } | |
3444 | ||
3445 | #ifdef HAVE_X_WINDOWS | |
8bd201d6 GM |
3446 | |
3447 | if (!EQ (frame, Qt) | |
3448 | && !UNSPECIFIEDP (value) | |
82641697 | 3449 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3450 | { |
3451 | Lisp_Object param; | |
3452 | ||
3453 | param = Qnil; | |
3454 | ||
3455 | if (EQ (face, Qdefault)) | |
3456 | { | |
3457 | /* Changed font-related attributes of the `default' face are | |
3458 | reflected in changed `font' frame parameters. */ | |
3459 | if (font_related_attr_p | |
3460 | && lface_fully_specified_p (XVECTOR (lface)->contents)) | |
3461 | set_font_frame_param (frame, lface); | |
3462 | else if (EQ (attr, QCforeground)) | |
3463 | param = Qforeground_color; | |
3464 | else if (EQ (attr, QCbackground)) | |
3465 | param = Qbackground_color; | |
3466 | } | |
3467 | else if (EQ (face, Qscroll_bar)) | |
3468 | { | |
3469 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3470 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3471 | if (EQ (attr, QCforeground)) | |
3472 | param = Qscroll_bar_foreground; | |
3473 | else if (EQ (attr, QCbackground)) | |
3474 | param = Qscroll_bar_background; | |
3475 | } | |
3476 | else if (EQ (face, Qborder)) | |
3477 | { | |
3478 | /* Changing background color of `border' sets frame parameter | |
3479 | `border-color'. */ | |
3480 | if (EQ (attr, QCbackground)) | |
3481 | param = Qborder_color; | |
3482 | } | |
3483 | else if (EQ (face, Qcursor)) | |
3484 | { | |
3485 | /* Changing background color of `cursor' sets frame parameter | |
3486 | `cursor-color'. */ | |
3487 | if (EQ (attr, QCbackground)) | |
3488 | param = Qcursor_color; | |
3489 | } | |
3490 | else if (EQ (face, Qmouse)) | |
3491 | { | |
3492 | /* Changing background color of `mouse' sets frame parameter | |
3493 | `mouse-color'. */ | |
3494 | if (EQ (attr, QCbackground)) | |
3495 | param = Qmouse_color; | |
3496 | } | |
3497 | ||
3498 | if (SYMBOLP (param)) | |
3499 | Fmodify_frame_parameters (frame, Fcons (Fcons (param, value), Qnil)); | |
3500 | } | |
82641697 GM |
3501 | |
3502 | #endif /* HAVE_X_WINDOWS */ | |
3503 | ||
3504 | return face; | |
3505 | } | |
3506 | ||
3507 | ||
3508 | #ifdef HAVE_X_WINDOWS | |
3509 | ||
3510 | /* Set the `font' frame parameter of FRAME according to `default' face | |
3511 | attributes LFACE. */ | |
3512 | ||
3513 | static void | |
3514 | set_font_frame_param (frame, lface) | |
3515 | Lisp_Object frame, lface; | |
3516 | { | |
3517 | struct frame *f = XFRAME (frame); | |
3518 | Lisp_Object frame_font; | |
3519 | int fontset; | |
3520 | char *font; | |
3521 | ||
3522 | /* Get FRAME's font parameter. */ | |
3523 | frame_font = Fassq (Qfont, f->param_alist); | |
3524 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
3525 | frame_font = XCDR (frame_font); | |
3526 | ||
3527 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
3528 | if (fontset >= 0) | |
3529 | { | |
3530 | /* Frame parameter is a fontset name. Modify the fontset so | |
3531 | that all its fonts reflect face attributes LFACE. */ | |
3532 | int charset; | |
3533 | struct fontset_info *fontset_info; | |
3534 | ||
3535 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
3536 | ||
3537 | for (charset = 0; charset < MAX_CHARSET; ++charset) | |
3538 | if (fontset_info->fontname[charset]) | |
3539 | { | |
3540 | font = choose_face_fontset_font (f, XVECTOR (lface)->contents, | |
3541 | fontset, charset); | |
3542 | Fset_fontset_font (frame_font, CHARSET_SYMBOL (charset), | |
3543 | build_string (font), frame); | |
3544 | xfree (font); | |
3545 | } | |
3546 | } | |
3547 | else | |
3548 | { | |
3549 | /* Frame parameter is an X font name. I believe this can | |
3550 | only happen in unibyte mode. */ | |
3551 | font = choose_face_font (f, XVECTOR (lface)->contents, | |
3552 | -1, Vface_default_registry); | |
3553 | if (font) | |
3554 | { | |
3555 | store_frame_param (f, Qfont, build_string (font)); | |
3556 | xfree (font); | |
3557 | } | |
3558 | } | |
3559 | } | |
3560 | ||
3561 | ||
8bd201d6 GM |
3562 | /* Update the corresponding face when frame parameter PARAM on frame F |
3563 | has been assigned the value NEW_VALUE. */ | |
3564 | ||
3565 | void | |
3566 | update_face_from_frame_parameter (f, param, new_value) | |
3567 | struct frame *f; | |
3568 | Lisp_Object param, new_value; | |
3569 | { | |
3570 | Lisp_Object lface; | |
3571 | ||
3572 | /* If there are no faces yet, give up. This is the case when called | |
3573 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 3574 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
3575 | if (NILP (f->face_alist)) |
3576 | return; | |
3577 | ||
3578 | if (EQ (param, Qforeground_color)) | |
3579 | { | |
3580 | lface = lface_from_face_name (f, Qdefault, 1); | |
3581 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
3582 | ? new_value : Qunspecified); | |
3583 | realize_basic_faces (f); | |
3584 | } | |
3585 | else if (EQ (param, Qbackground_color)) | |
3586 | { | |
92610620 GM |
3587 | Lisp_Object frame; |
3588 | ||
3589 | /* Changing the background color might change the background | |
3590 | mode, so that we have to load new defface specs. Call | |
3591 | frame-update-face-colors to do that. */ | |
3592 | XSETFRAME (frame, f); | |
3593 | call1 (Qframe_update_face_colors, frame); | |
3594 | ||
8bd201d6 GM |
3595 | lface = lface_from_face_name (f, Qdefault, 1); |
3596 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3597 | ? new_value : Qunspecified); | |
3598 | realize_basic_faces (f); | |
3599 | } | |
3600 | if (EQ (param, Qborder_color)) | |
3601 | { | |
3602 | lface = lface_from_face_name (f, Qborder, 1); | |
3603 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3604 | ? new_value : Qunspecified); | |
3605 | } | |
3606 | else if (EQ (param, Qcursor_color)) | |
3607 | { | |
3608 | lface = lface_from_face_name (f, Qcursor, 1); | |
3609 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3610 | ? new_value : Qunspecified); | |
3611 | } | |
3612 | else if (EQ (param, Qmouse_color)) | |
3613 | { | |
3614 | lface = lface_from_face_name (f, Qmouse, 1); | |
3615 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3616 | ? new_value : Qunspecified); | |
3617 | } | |
3618 | } | |
3619 | ||
3620 | ||
82641697 GM |
3621 | /* Get the value of X resource RESOURCE, class CLASS for the display |
3622 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3623 | doesn't take a frame argument. */ | |
3624 | ||
3625 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
3626 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
3627 | (resource, class, frame) | |
3628 | Lisp_Object resource, class, frame; | |
3629 | { | |
3630 | Lisp_Object value; | |
3631 | CHECK_STRING (resource, 0); | |
3632 | CHECK_STRING (class, 1); | |
3633 | CHECK_LIVE_FRAME (frame, 2); | |
3634 | BLOCK_INPUT; | |
3635 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3636 | resource, class, Qnil, Qnil); | |
3637 | UNBLOCK_INPUT; | |
3638 | return value; | |
3639 | } | |
3640 | ||
3641 | ||
3642 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3643 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3644 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3645 | error; if SIGNAL_P is zero, return 0. */ | |
3646 | ||
3647 | static Lisp_Object | |
3648 | face_boolean_x_resource_value (value, signal_p) | |
3649 | Lisp_Object value; | |
3650 | int signal_p; | |
3651 | { | |
3652 | Lisp_Object result = make_number (0); | |
3653 | ||
3654 | xassert (STRINGP (value)); | |
3655 | ||
3656 | if (xstricmp (XSTRING (value)->data, "on") == 0 | |
3657 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
3658 | result = Qt; | |
3659 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
3660 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
3661 | result = Qnil; | |
3662 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3663 | result = Qunspecified; | |
3664 | else if (signal_p) | |
3665 | signal_error ("Invalid face attribute value from X resource", value); | |
3666 | ||
3667 | return result; | |
3668 | } | |
3669 | ||
3670 | ||
3671 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3672 | Finternal_set_lisp_face_attribute_from_resource, | |
3673 | Sinternal_set_lisp_face_attribute_from_resource, | |
3674 | 3, 4, 0, "") | |
3675 | (face, attr, value, frame) | |
3676 | Lisp_Object face, attr, value, frame; | |
3677 | { | |
3678 | CHECK_SYMBOL (face, 0); | |
3679 | CHECK_SYMBOL (attr, 1); | |
3680 | CHECK_STRING (value, 2); | |
3681 | ||
3682 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3683 | value = Qunspecified; | |
3684 | else if (EQ (attr, QCheight)) | |
3685 | { | |
3686 | value = Fstring_to_number (value, make_number (10)); | |
3687 | if (XINT (value) <= 0) | |
3688 | signal_error ("Invalid face height from X resource", value); | |
3689 | } | |
3690 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3691 | value = face_boolean_x_resource_value (value, 1); | |
3692 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
3693 | value = intern (XSTRING (value)->data); | |
3694 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
3695 | value = face_boolean_x_resource_value (value, 1); | |
3696 | else if (EQ (attr, QCunderline) | |
3697 | || EQ (attr, QCoverline) | |
3698 | || EQ (attr, QCstrike_through) | |
3699 | || EQ (attr, QCbox)) | |
3700 | { | |
3701 | Lisp_Object boolean_value; | |
3702 | ||
3703 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3704 | VALUE does NOT specify a color. */ | |
3705 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3706 | if (SYMBOLP (boolean_value)) | |
3707 | value = boolean_value; | |
3708 | } | |
3709 | ||
3710 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3711 | } | |
3712 | ||
3713 | ||
3714 | #endif /* HAVE_X_WINDOWS */ | |
3715 | ||
3716 | ||
3717 | ||
3718 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
3719 | Sinternal_get_lisp_face_attribute, | |
3720 | 2, 3, 0, | |
3721 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
3722 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
3723 | face attribute name, signal an error.\n\ | |
3724 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
3725 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
3726 | frames). If FRAME is omitted or nil, use the selected frame.") | |
3727 | (symbol, keyword, frame) | |
3728 | Lisp_Object symbol, keyword, frame; | |
3729 | { | |
3730 | Lisp_Object lface, value = Qnil; | |
3731 | ||
3732 | CHECK_SYMBOL (symbol, 0); | |
3733 | CHECK_SYMBOL (keyword, 1); | |
3734 | ||
3735 | if (EQ (frame, Qt)) | |
3736 | lface = lface_from_face_name (NULL, symbol, 1); | |
3737 | else | |
3738 | { | |
3739 | if (NILP (frame)) | |
c0617987 | 3740 | frame = selected_frame; |
82641697 GM |
3741 | CHECK_LIVE_FRAME (frame, 2); |
3742 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
3743 | } | |
3744 | ||
3745 | if (EQ (keyword, QCfamily)) | |
3746 | value = LFACE_FAMILY (lface); | |
3747 | else if (EQ (keyword, QCheight)) | |
3748 | value = LFACE_HEIGHT (lface); | |
3749 | else if (EQ (keyword, QCweight)) | |
3750 | value = LFACE_WEIGHT (lface); | |
3751 | else if (EQ (keyword, QCslant)) | |
3752 | value = LFACE_SLANT (lface); | |
3753 | else if (EQ (keyword, QCunderline)) | |
3754 | value = LFACE_UNDERLINE (lface); | |
3755 | else if (EQ (keyword, QCoverline)) | |
3756 | value = LFACE_OVERLINE (lface); | |
3757 | else if (EQ (keyword, QCstrike_through)) | |
3758 | value = LFACE_STRIKE_THROUGH (lface); | |
3759 | else if (EQ (keyword, QCbox)) | |
3760 | value = LFACE_BOX (lface); | |
3761 | else if (EQ (keyword, QCinverse_video) | |
3762 | || EQ (keyword, QCreverse_video)) | |
3763 | value = LFACE_INVERSE (lface); | |
3764 | else if (EQ (keyword, QCforeground)) | |
3765 | value = LFACE_FOREGROUND (lface); | |
3766 | else if (EQ (keyword, QCbackground)) | |
3767 | value = LFACE_BACKGROUND (lface); | |
3768 | else if (EQ (keyword, QCstipple)) | |
3769 | value = LFACE_STIPPLE (lface); | |
3770 | else if (EQ (keyword, QCwidth)) | |
3771 | value = LFACE_SWIDTH (lface); | |
3772 | else | |
3773 | signal_error ("Invalid face attribute name", keyword); | |
3774 | ||
3775 | return value; | |
3776 | } | |
3777 | ||
3778 | ||
3779 | DEFUN ("internal-lisp-face-attribute-values", | |
3780 | Finternal_lisp_face_attribute_values, | |
3781 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
3782 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
3783 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
3784 | (attr) | |
3785 | Lisp_Object attr; | |
3786 | { | |
3787 | Lisp_Object result = Qnil; | |
3788 | ||
3789 | CHECK_SYMBOL (attr, 0); | |
3790 | ||
3791 | if (EQ (attr, QCweight) | |
3792 | || EQ (attr, QCslant) | |
3793 | || EQ (attr, QCwidth)) | |
3794 | { | |
3795 | /* Extract permissible symbols from tables. */ | |
3796 | struct table_entry *table; | |
3797 | int i, dim; | |
3798 | ||
3799 | if (EQ (attr, QCweight)) | |
3800 | table = weight_table, dim = DIM (weight_table); | |
3801 | else if (EQ (attr, QCslant)) | |
3802 | table = slant_table, dim = DIM (slant_table); | |
3803 | else | |
3804 | table = swidth_table, dim = DIM (swidth_table); | |
3805 | ||
3806 | for (i = 0; i < dim; ++i) | |
3807 | { | |
3808 | Lisp_Object symbol = *table[i].symbol; | |
3809 | Lisp_Object tail = result; | |
3810 | ||
3811 | while (!NILP (tail) | |
3812 | && !EQ (XCAR (tail), symbol)) | |
3813 | tail = XCDR (tail); | |
3814 | ||
3815 | if (NILP (tail)) | |
3816 | result = Fcons (symbol, result); | |
3817 | } | |
3818 | } | |
3819 | else if (EQ (attr, QCunderline)) | |
3820 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3821 | else if (EQ (attr, QCoverline)) | |
3822 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3823 | else if (EQ (attr, QCstrike_through)) | |
3824 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3825 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
3826 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3827 | ||
3828 | return result; | |
3829 | } | |
3830 | ||
3831 | ||
3832 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
3833 | Sinternal_merge_in_global_face, 2, 2, 0, | |
3834 | "Add attributes from frame-default definition of FACE to FACE on FRAME.") | |
3835 | (face, frame) | |
3836 | Lisp_Object face, frame; | |
3837 | { | |
3838 | Lisp_Object global_lface, local_lface; | |
3839 | CHECK_LIVE_FRAME (frame, 1); | |
3840 | global_lface = lface_from_face_name (NULL, face, 1); | |
3841 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3842 | if (NILP (local_lface)) | |
3843 | local_lface = Finternal_make_lisp_face (face, frame); | |
3844 | merge_face_vectors (XVECTOR (global_lface)->contents, | |
3845 | XVECTOR (local_lface)->contents); | |
3846 | return face; | |
3847 | } | |
3848 | ||
3849 | ||
3850 | /* The following function is implemented for compatibility with 20.2. | |
3851 | The function is used in x-resolve-fonts when it is asked to | |
3852 | return fonts with the same size as the font of a face. This is | |
3853 | done in fontset.el. */ | |
3854 | ||
3855 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, | |
3856 | "Return the font name of face FACE, or nil if it is unspecified.\n\ | |
3857 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3858 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3859 | The font default for a face is either nil, or a list\n\ | |
3860 | of the form (bold), (italic) or (bold italic).\n\ | |
3861 | If FRAME is omitted or nil, use the selected frame.") | |
3862 | (face, frame) | |
3863 | Lisp_Object face, frame; | |
3864 | { | |
3865 | if (EQ (frame, Qt)) | |
3866 | { | |
3867 | Lisp_Object result = Qnil; | |
3868 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
3869 | ||
3870 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3871 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
3872 | result = Fcons (Qbold, result); | |
3873 | ||
3874 | if (!NILP (LFACE_SLANT (lface)) | |
3875 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
3876 | result = Fcons (Qitalic, result); | |
3877 | ||
3878 | return result; | |
3879 | } | |
3880 | else | |
3881 | { | |
3882 | struct frame *f = frame_or_selected_frame (frame, 1); | |
3883 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
3884 | struct face *face = FACE_FROM_ID (f, face_id); | |
3885 | return build_string (face->font_name); | |
3886 | } | |
3887 | } | |
3888 | ||
3889 | ||
3890 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
3891 | all attributes are `equal'. Tries to be fast because this function | |
3892 | is called quite often. */ | |
3893 | ||
3894 | static INLINE int | |
3895 | lface_equal_p (v1, v2) | |
3896 | Lisp_Object *v1, *v2; | |
3897 | { | |
3898 | int i, equal_p = 1; | |
3899 | ||
3900 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
3901 | { | |
3902 | Lisp_Object a = v1[i]; | |
3903 | Lisp_Object b = v2[i]; | |
3904 | ||
3905 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
3906 | and the other is specified. */ | |
3907 | equal_p = XTYPE (a) == XTYPE (b); | |
3908 | if (!equal_p) | |
3909 | break; | |
3910 | ||
3911 | if (!EQ (a, b)) | |
3912 | { | |
3913 | switch (XTYPE (a)) | |
3914 | { | |
3915 | case Lisp_String: | |
3916 | equal_p = (XSTRING (a)->size == XSTRING (b)->size | |
3917 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, | |
3918 | XSTRING (a)->size) == 0); | |
3919 | break; | |
3920 | ||
3921 | case Lisp_Int: | |
3922 | case Lisp_Symbol: | |
3923 | equal_p = 0; | |
3924 | break; | |
3925 | ||
3926 | default: | |
3927 | equal_p = !NILP (Fequal (a, b)); | |
3928 | break; | |
3929 | } | |
3930 | } | |
3931 | } | |
3932 | ||
3933 | return equal_p; | |
3934 | } | |
3935 | ||
3936 | ||
3937 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
3938 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
3939 | "True if FACE1 and FACE2 are equal.\n\ | |
3940 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3941 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3942 | If FRAME is omitted or nil, use the selected frame.") | |
3943 | (face1, face2, frame) | |
3944 | Lisp_Object face1, face2, frame; | |
3945 | { | |
3946 | int equal_p; | |
3947 | struct frame *f; | |
3948 | Lisp_Object lface1, lface2; | |
3949 | ||
3950 | if (EQ (frame, Qt)) | |
3951 | f = NULL; | |
3952 | else | |
3953 | /* Don't use check_x_frame here because this function is called | |
3954 | before X frames exist. At that time, if FRAME is nil, | |
3955 | selected_frame will be used which is the frame dumped with | |
3956 | Emacs. That frame is not an X frame. */ | |
3957 | f = frame_or_selected_frame (frame, 2); | |
3958 | ||
3959 | lface1 = lface_from_face_name (NULL, face1, 1); | |
3960 | lface2 = lface_from_face_name (NULL, face2, 1); | |
3961 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
3962 | XVECTOR (lface2)->contents); | |
3963 | return equal_p ? Qt : Qnil; | |
3964 | } | |
3965 | ||
3966 | ||
3967 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, | |
3968 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
3969 | "True if FACE has no attribute specified.\n\ | |
3970 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
3971 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
3972 | If FRAME is omitted or nil, use the selected frame.") | |
3973 | (face, frame) | |
3974 | Lisp_Object face, frame; | |
3975 | { | |
3976 | struct frame *f; | |
3977 | Lisp_Object lface; | |
3978 | int i; | |
3979 | ||
3980 | if (NILP (frame)) | |
c0617987 GM |
3981 | frame = selected_frame; |
3982 | CHECK_LIVE_FRAME (frame, 0); | |
3983 | f = XFRAME (frame); | |
82641697 GM |
3984 | |
3985 | if (EQ (frame, Qt)) | |
3986 | lface = lface_from_face_name (NULL, face, 1); | |
3987 | else | |
3988 | lface = lface_from_face_name (f, face, 1); | |
3989 | ||
3990 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3991 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
3992 | break; | |
3993 | ||
3994 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; | |
3995 | } | |
3996 | ||
3997 | ||
3998 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
3999 | 0, 1, 0, | |
4000 | "Return an alist of frame-local faces defined on FRAME.\n\ | |
4001 | For internal use only.") | |
4002 | (frame) | |
4003 | Lisp_Object frame; | |
4004 | { | |
4005 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4006 | return f->face_alist; | |
4007 | } | |
4008 | ||
4009 | ||
4010 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4011 | below in computing a hash value for a Lisp face. */ | |
4012 | ||
4013 | static INLINE unsigned | |
4014 | hash_string_case_insensitive (string) | |
4015 | Lisp_Object string; | |
4016 | { | |
4017 | unsigned char *s; | |
4018 | unsigned hash = 0; | |
4019 | xassert (STRINGP (string)); | |
4020 | for (s = XSTRING (string)->data; *s; ++s) | |
4021 | hash = (hash << 1) ^ tolower (*s); | |
4022 | return hash; | |
4023 | } | |
4024 | ||
4025 | ||
4026 | /* Return a hash code for face attribute vector V. */ | |
4027 | ||
4028 | static INLINE unsigned | |
4029 | lface_hash (v) | |
4030 | Lisp_Object *v; | |
4031 | { | |
4032 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4033 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4034 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
4035 | ^ (unsigned) v[LFACE_WEIGHT_INDEX] | |
4036 | ^ (unsigned) v[LFACE_SLANT_INDEX] | |
4037 | ^ (unsigned) v[LFACE_SWIDTH_INDEX] | |
4038 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); | |
4039 | } | |
4040 | ||
4041 | ||
4042 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4043 | considering charsets/registries). They do if they specify the same | |
4044 | family, point size, weight, width and slant. Both LFACE1 and | |
4045 | LFACE2 must be fully-specified. */ | |
4046 | ||
4047 | static INLINE int | |
4048 | lface_same_font_attributes_p (lface1, lface2) | |
4049 | Lisp_Object *lface1, *lface2; | |
4050 | { | |
4051 | xassert (lface_fully_specified_p (lface1) | |
4052 | && lface_fully_specified_p (lface2)); | |
4053 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4054 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
4055 | && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) | |
4056 | == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) | |
4057 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) | |
4058 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
4059 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX])); | |
4060 | } | |
4061 | ||
4062 | ||
4063 | \f | |
4064 | /*********************************************************************** | |
4065 | Realized Faces | |
4066 | ***********************************************************************/ | |
4067 | ||
4068 | /* Allocate and return a new realized face for Lisp face attribute | |
4069 | vector ATTR, charset CHARSET, and registry REGISTRY. */ | |
4070 | ||
4071 | static struct face * | |
4072 | make_realized_face (attr, charset, registry) | |
4073 | Lisp_Object *attr; | |
4074 | int charset; | |
4075 | Lisp_Object registry; | |
4076 | { | |
4077 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4078 | bzero (face, sizeof *face); | |
4079 | face->charset = charset; | |
4080 | face->registry = registry; | |
4081 | bcopy (attr, face->lface, sizeof face->lface); | |
4082 | return face; | |
4083 | } | |
4084 | ||
4085 | ||
4086 | /* Free realized face FACE, including its X resources. FACE may | |
4087 | be null. */ | |
4088 | ||
4089 | static void | |
4090 | free_realized_face (f, face) | |
4091 | struct frame *f; | |
4092 | struct face *face; | |
4093 | { | |
4094 | if (face) | |
4095 | { | |
4096 | #ifdef HAVE_X_WINDOWS | |
4097 | if (FRAME_X_P (f)) | |
4098 | { | |
4099 | if (face->gc) | |
4100 | { | |
4101 | x_free_gc (f, face->gc); | |
4102 | face->gc = 0; | |
4103 | } | |
4104 | ||
4105 | free_face_colors (f, face); | |
4106 | x_destroy_bitmap (f, face->stipple); | |
4107 | } | |
4108 | #endif /* HAVE_X_WINDOWS */ | |
4109 | ||
4110 | xfree (face); | |
4111 | } | |
4112 | } | |
4113 | ||
4114 | ||
4115 | /* Prepare face FACE for subsequent display on frame F. This | |
4116 | allocated GCs if they haven't been allocated yet or have been freed | |
4117 | by clearing the face cache. */ | |
4118 | ||
4119 | void | |
4120 | prepare_face_for_display (f, face) | |
4121 | struct frame *f; | |
4122 | struct face *face; | |
4123 | { | |
4124 | #ifdef HAVE_X_WINDOWS | |
4125 | xassert (FRAME_X_P (f)); | |
4126 | ||
4127 | if (face->gc == 0) | |
4128 | { | |
4129 | XGCValues xgcv; | |
4130 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4131 | ||
4132 | xgcv.foreground = face->foreground; | |
4133 | xgcv.background = face->background; | |
4134 | xgcv.graphics_exposures = False; | |
4135 | ||
4136 | /* The font of FACE may be null if we couldn't load it. */ | |
4137 | if (face->font) | |
4138 | { | |
4139 | xgcv.font = face->font->fid; | |
4140 | mask |= GCFont; | |
4141 | } | |
4142 | ||
4143 | BLOCK_INPUT; | |
4144 | if (face->stipple) | |
4145 | { | |
be8a72f4 | 4146 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4147 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4148 | mask |= GCFillStyle | GCStipple; | |
4149 | } | |
4150 | ||
4151 | face->gc = x_create_gc (f, mask, &xgcv); | |
4152 | UNBLOCK_INPUT; | |
4153 | } | |
4154 | #endif | |
4155 | } | |
4156 | ||
4157 | ||
4158 | /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in | |
4159 | macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for | |
4160 | ISO8859-1 if the ASCII face suffices. */ | |
4161 | ||
4162 | int | |
4163 | face_suitable_for_iso8859_1_p (face) | |
4164 | struct face *face; | |
4165 | { | |
4166 | int len = strlen (face->font_name); | |
4167 | return len >= 9 && xstricmp (face->font_name + len - 9, "iso8859-1") == 0; | |
4168 | } | |
4169 | ||
4170 | ||
4171 | /* Value is non-zero if FACE is suitable for displaying characters | |
4172 | of CHARSET. CHARSET < 0 means unibyte text. */ | |
4173 | ||
4174 | INLINE int | |
4175 | face_suitable_for_charset_p (face, charset) | |
4176 | struct face *face; | |
4177 | int charset; | |
4178 | { | |
4179 | int suitable_p = 0; | |
4180 | ||
4181 | if (charset < 0) | |
4182 | { | |
4183 | if (EQ (face->registry, Vface_default_registry) | |
4184 | || !NILP (Fequal (face->registry, Vface_default_registry))) | |
4185 | suitable_p = 1; | |
4186 | } | |
4187 | else if (face->charset == charset) | |
4188 | suitable_p = 1; | |
4189 | else if (face->charset == CHARSET_ASCII | |
4190 | && charset == charset_latin_iso8859_1) | |
4191 | suitable_p = face_suitable_for_iso8859_1_p (face); | |
4192 | else if (face->charset == charset_latin_iso8859_1 | |
4193 | && charset == CHARSET_ASCII) | |
4194 | suitable_p = 1; | |
4195 | ||
4196 | return suitable_p; | |
4197 | } | |
4198 | ||
4199 | ||
4200 | \f | |
4201 | /*********************************************************************** | |
4202 | Face Cache | |
4203 | ***********************************************************************/ | |
4204 | ||
4205 | /* Return a new face cache for frame F. */ | |
4206 | ||
4207 | static struct face_cache * | |
4208 | make_face_cache (f) | |
4209 | struct frame *f; | |
4210 | { | |
4211 | struct face_cache *c; | |
4212 | int size; | |
4213 | ||
4214 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4215 | bzero (c, sizeof *c); | |
4216 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4217 | c->buckets = (struct face **) xmalloc (size); | |
4218 | bzero (c->buckets, size); | |
4219 | c->size = 50; | |
4220 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4221 | c->f = f; | |
4222 | return c; | |
4223 | } | |
4224 | ||
4225 | ||
4226 | /* Clear out all graphics contexts for all realized faces, except for | |
4227 | the basic faces. This should be done from time to time just to avoid | |
4228 | keeping too many graphics contexts that are no longer needed. */ | |
4229 | ||
4230 | static void | |
4231 | clear_face_gcs (c) | |
4232 | struct face_cache *c; | |
4233 | { | |
4234 | if (c && FRAME_X_P (c->f)) | |
4235 | { | |
4236 | #ifdef HAVE_X_WINDOWS | |
4237 | int i; | |
4238 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4239 | { | |
4240 | struct face *face = c->faces_by_id[i]; | |
4241 | if (face && face->gc) | |
4242 | { | |
4243 | x_free_gc (c->f, face->gc); | |
4244 | face->gc = 0; | |
4245 | } | |
4246 | } | |
4247 | #endif /* HAVE_X_WINDOWS */ | |
4248 | } | |
4249 | } | |
4250 | ||
4251 | ||
4252 | /* Free all realized faces in face cache C, including basic faces. C | |
4253 | may be null. If faces are freed, make sure the frame's current | |
4254 | matrix is marked invalid, so that a display caused by an expose | |
4255 | event doesn't try to use faces we destroyed. */ | |
4256 | ||
4257 | static void | |
4258 | free_realized_faces (c) | |
4259 | struct face_cache *c; | |
4260 | { | |
4261 | if (c && c->used) | |
4262 | { | |
4263 | int i, size; | |
4264 | struct frame *f = c->f; | |
4265 | ||
4266 | for (i = 0; i < c->used; ++i) | |
4267 | { | |
4268 | free_realized_face (f, c->faces_by_id[i]); | |
4269 | c->faces_by_id[i] = NULL; | |
4270 | } | |
4271 | ||
4272 | c->used = 0; | |
4273 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4274 | bzero (c->buckets, size); | |
4275 | ||
4276 | /* Must do a thorough redisplay the next time. Mark current | |
4277 | matrices as invalid because they will reference faces freed | |
4278 | above. This function is also called when a frame is | |
4279 | destroyed. In this case, the root window of F is nil. */ | |
4280 | if (WINDOWP (f->root_window)) | |
4281 | { | |
4282 | clear_current_matrices (f); | |
4283 | ++windows_or_buffers_changed; | |
4284 | } | |
4285 | } | |
4286 | } | |
4287 | ||
4288 | ||
4289 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. | |
4290 | This is done after attributes of a named face have been changed, | |
4291 | because we can't tell which realized faces depend on that face. */ | |
4292 | ||
4293 | void | |
4294 | free_all_realized_faces (frame) | |
4295 | Lisp_Object frame; | |
4296 | { | |
4297 | if (NILP (frame)) | |
4298 | { | |
4299 | Lisp_Object rest; | |
4300 | FOR_EACH_FRAME (rest, frame) | |
4301 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4302 | } | |
4303 | else | |
4304 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4305 | } | |
4306 | ||
4307 | ||
4308 | /* Free face cache C and faces in it, including their X resources. */ | |
4309 | ||
4310 | static void | |
4311 | free_face_cache (c) | |
4312 | struct face_cache *c; | |
4313 | { | |
4314 | if (c) | |
4315 | { | |
4316 | free_realized_faces (c); | |
4317 | xfree (c->buckets); | |
4318 | xfree (c->faces_by_id); | |
4319 | xfree (c); | |
4320 | } | |
4321 | } | |
4322 | ||
4323 | ||
4324 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
4325 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
4326 | collision list of the face hash table of C. This is done because | |
4327 | otherwise lookup_face would find FACE for every charset, even if | |
4328 | faces with the same attributes but for specific charsets exist. */ | |
4329 | ||
4330 | static void | |
4331 | cache_face (c, face, hash) | |
4332 | struct face_cache *c; | |
4333 | struct face *face; | |
4334 | unsigned hash; | |
4335 | { | |
4336 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4337 | ||
4338 | face->hash = hash; | |
4339 | ||
4340 | if (face->fontset >= 0) | |
4341 | { | |
4342 | struct face *last = c->buckets[i]; | |
4343 | if (last) | |
4344 | { | |
4345 | while (last->next) | |
4346 | last = last->next; | |
4347 | last->next = face; | |
4348 | face->prev = last; | |
4349 | face->next = NULL; | |
4350 | } | |
4351 | else | |
4352 | { | |
4353 | c->buckets[i] = face; | |
4354 | face->prev = face->next = NULL; | |
4355 | } | |
4356 | } | |
4357 | else | |
4358 | { | |
4359 | face->prev = NULL; | |
4360 | face->next = c->buckets[i]; | |
4361 | if (face->next) | |
4362 | face->next->prev = face; | |
4363 | c->buckets[i] = face; | |
4364 | } | |
4365 | ||
4366 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4367 | slot as FACE->id. */ | |
4368 | for (i = 0; i < c->used; ++i) | |
4369 | if (c->faces_by_id[i] == NULL) | |
4370 | break; | |
4371 | face->id = i; | |
4372 | ||
4373 | /* Maybe enlarge C->faces_by_id. */ | |
4374 | if (i == c->used && c->used == c->size) | |
4375 | { | |
4376 | int new_size = 2 * c->size; | |
4377 | int sz = new_size * sizeof *c->faces_by_id; | |
4378 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4379 | c->size = new_size; | |
4380 | } | |
4381 | ||
4382 | #if GLYPH_DEBUG | |
4383 | /* Check that FACE got a unique id. */ | |
4384 | { | |
4385 | int j, n; | |
4386 | struct face *face; | |
4387 | ||
4388 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4389 | for (face = c->buckets[j]; face; face = face->next) | |
4390 | if (face->id == i) | |
4391 | ++n; | |
4392 | ||
4393 | xassert (n == 1); | |
4394 | } | |
4395 | #endif /* GLYPH_DEBUG */ | |
4396 | ||
4397 | c->faces_by_id[i] = face; | |
4398 | if (i == c->used) | |
4399 | ++c->used; | |
4400 | } | |
4401 | ||
4402 | ||
4403 | /* Remove face FACE from cache C. */ | |
4404 | ||
4405 | static void | |
4406 | uncache_face (c, face) | |
4407 | struct face_cache *c; | |
4408 | struct face *face; | |
4409 | { | |
4410 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
4411 | ||
4412 | if (face->prev) | |
4413 | face->prev->next = face->next; | |
4414 | else | |
4415 | c->buckets[i] = face->next; | |
4416 | ||
4417 | if (face->next) | |
4418 | face->next->prev = face->prev; | |
4419 | ||
4420 | c->faces_by_id[face->id] = NULL; | |
4421 | if (face->id == c->used) | |
4422 | --c->used; | |
4423 | } | |
4424 | ||
4425 | ||
4426 | /* Look up a realized face with face attributes ATTR in the face cache | |
4427 | of frame F. The face will be used to display characters of | |
4428 | CHARSET. CHARSET < 0 means the face will be used to display | |
4429 | unibyte text. The value of face-default-registry is used to choose | |
4430 | a font for the face in that case. Value is the ID of the face | |
4431 | found. If no suitable face is found, realize a new one. */ | |
4432 | ||
4433 | INLINE int | |
4434 | lookup_face (f, attr, charset) | |
4435 | struct frame *f; | |
4436 | Lisp_Object *attr; | |
4437 | int charset; | |
4438 | { | |
4439 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
4440 | unsigned hash; | |
4441 | int i; | |
4442 | struct face *face; | |
4443 | ||
4444 | xassert (c != NULL); | |
4445 | check_lface_attrs (attr); | |
4446 | ||
4447 | /* Look up ATTR in the face cache. */ | |
4448 | hash = lface_hash (attr); | |
4449 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4450 | ||
4451 | for (face = c->buckets[i]; face; face = face->next) | |
4452 | if (face->hash == hash | |
44747bd0 | 4453 | && (!FRAME_WINDOW_P (f) |
82641697 GM |
4454 | || FACE_SUITABLE_FOR_CHARSET_P (face, charset)) |
4455 | && lface_equal_p (face->lface, attr)) | |
4456 | break; | |
4457 | ||
4458 | /* If not found, realize a new face. */ | |
4459 | if (face == NULL) | |
4460 | { | |
4461 | face = realize_face (c, attr, charset); | |
4462 | cache_face (c, face, hash); | |
4463 | } | |
4464 | ||
4465 | #if GLYPH_DEBUG | |
4466 | xassert (face == FACE_FROM_ID (f, face->id)); | |
4467 | if (FRAME_X_P (f)) | |
4468 | xassert (charset < 0 || FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
4469 | #endif /* GLYPH_DEBUG */ | |
4470 | ||
4471 | return face->id; | |
4472 | } | |
4473 | ||
4474 | ||
4475 | /* Return the face id of the realized face for named face SYMBOL on | |
4476 | frame F suitable for displaying characters from CHARSET. CHARSET < | |
4477 | 0 means unibyte text. */ | |
4478 | ||
4479 | int | |
4480 | lookup_named_face (f, symbol, charset) | |
4481 | struct frame *f; | |
4482 | Lisp_Object symbol; | |
4483 | int charset; | |
4484 | { | |
4485 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4486 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4487 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4488 | ||
4489 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4490 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4491 | merge_face_vectors (symbol_attrs, attrs); | |
4492 | return lookup_face (f, attrs, charset); | |
4493 | } | |
4494 | ||
4495 | ||
4496 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
4497 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
4498 | ||
4499 | int | |
4500 | ascii_face_of_lisp_face (f, lface_id) | |
4501 | struct frame *f; | |
4502 | int lface_id; | |
4503 | { | |
4504 | int face_id; | |
4505 | ||
4506 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) | |
4507 | { | |
4508 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
4509 | face_id = lookup_named_face (f, face_name, CHARSET_ASCII); | |
4510 | } | |
4511 | else | |
4512 | face_id = -1; | |
4513 | ||
4514 | return face_id; | |
4515 | } | |
4516 | ||
4517 | ||
4518 | /* Return a face for charset ASCII that is like the face with id | |
4519 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4520 | STEPS < 0 means larger. Value is the id of the face. */ | |
4521 | ||
4522 | int | |
4523 | smaller_face (f, face_id, steps) | |
4524 | struct frame *f; | |
4525 | int face_id, steps; | |
4526 | { | |
4527 | #ifdef HAVE_X_WINDOWS | |
4528 | struct face *face; | |
4529 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4530 | int pt, last_pt, last_height; | |
4531 | int delta; | |
4532 | int new_face_id; | |
4533 | struct face *new_face; | |
4534 | ||
4535 | /* If not called for an X frame, just return the original face. */ | |
4536 | if (FRAME_TERMCAP_P (f)) | |
4537 | return face_id; | |
4538 | ||
4539 | /* Try in increments of 1/2 pt. */ | |
4540 | delta = steps < 0 ? 5 : -5; | |
4541 | steps = abs (steps); | |
4542 | ||
4543 | face = FACE_FROM_ID (f, face_id); | |
4544 | bcopy (face->lface, attrs, sizeof attrs); | |
4545 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4546 | new_face_id = face_id; | |
4547 | last_height = FONT_HEIGHT (face->font); | |
4548 | ||
4549 | while (steps | |
4550 | && pt + delta > 0 | |
4551 | /* Give up if we cannot find a font within 10pt. */ | |
4552 | && abs (last_pt - pt) < 100) | |
4553 | { | |
4554 | /* Look up a face for a slightly smaller/larger font. */ | |
4555 | pt += delta; | |
4556 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
4557 | new_face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4558 | new_face = FACE_FROM_ID (f, new_face_id); | |
4559 | ||
4560 | /* If height changes, count that as one step. */ | |
4561 | if (FONT_HEIGHT (new_face->font) != last_height) | |
4562 | { | |
4563 | --steps; | |
4564 | last_height = FONT_HEIGHT (new_face->font); | |
4565 | last_pt = pt; | |
4566 | } | |
4567 | } | |
4568 | ||
4569 | return new_face_id; | |
4570 | ||
4571 | #else /* not HAVE_X_WINDOWS */ | |
4572 | ||
4573 | return face_id; | |
4574 | ||
4575 | #endif /* not HAVE_X_WINDOWS */ | |
4576 | } | |
4577 | ||
4578 | ||
4579 | /* Return a face for charset ASCII that is like the face with id | |
4580 | FACE_ID on frame F, but has height HEIGHT. */ | |
4581 | ||
4582 | int | |
4583 | face_with_height (f, face_id, height) | |
4584 | struct frame *f; | |
4585 | int face_id; | |
4586 | int height; | |
4587 | { | |
4588 | #ifdef HAVE_X_WINDOWS | |
4589 | struct face *face; | |
4590 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4591 | ||
4592 | if (FRAME_TERMCAP_P (f) | |
4593 | || height <= 0) | |
4594 | return face_id; | |
4595 | ||
4596 | face = FACE_FROM_ID (f, face_id); | |
4597 | bcopy (face->lface, attrs, sizeof attrs); | |
4598 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
4599 | face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4600 | #endif /* HAVE_X_WINDOWS */ | |
4601 | ||
4602 | return face_id; | |
4603 | } | |
4604 | ||
44747bd0 EZ |
4605 | /* Return the face id of the realized face for named face SYMBOL on |
4606 | frame F suitable for displaying characters from CHARSET (CHARSET < | |
4607 | 0 means unibyte text), and use attributes of the face FACE_ID for | |
4608 | attributes that aren't completely specified by SYMBOL. This is | |
4609 | like lookup_named_face, except that the default attributes come | |
4610 | from FACE_ID, not from the default face. FACE_ID is assumed to | |
4611 | be already realized. */ | |
4612 | ||
4613 | int | |
4614 | lookup_derived_face (f, symbol, charset, face_id) | |
4615 | struct frame *f; | |
4616 | Lisp_Object symbol; | |
4617 | int charset; | |
4618 | int face_id; | |
4619 | { | |
4620 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4621 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4622 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
4623 | ||
4624 | if (!default_face) | |
4625 | abort (); | |
4626 | ||
4627 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4628 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4629 | merge_face_vectors (symbol_attrs, attrs); | |
4630 | return lookup_face (f, attrs, charset); | |
4631 | } | |
4632 | ||
82641697 GM |
4633 | |
4634 | \f | |
4635 | /*********************************************************************** | |
4636 | Font selection | |
4637 | ***********************************************************************/ | |
4638 | ||
4639 | DEFUN ("internal-set-font-selection-order", | |
4640 | Finternal_set_font_selection_order, | |
4641 | Sinternal_set_font_selection_order, 1, 1, 0, | |
4642 | "Set font selection order for face font selection to ORDER.\n\ | |
4643 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
4644 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
4645 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
4646 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
4647 | a suitable height, and then tries to match the font weight.\n\ | |
4648 | Value is ORDER.") | |
4649 | (order) | |
4650 | Lisp_Object order; | |
4651 | { | |
4652 | Lisp_Object list; | |
4653 | int i; | |
4654 | int indices[4]; | |
4655 | ||
4656 | CHECK_LIST (order, 0); | |
4657 | bzero (indices, sizeof indices); | |
4658 | i = 0; | |
4659 | ||
4660 | for (list = order; | |
4661 | CONSP (list) && i < DIM (indices); | |
4662 | list = XCDR (list), ++i) | |
4663 | { | |
4664 | Lisp_Object attr = XCAR (list); | |
4665 | int xlfd; | |
4666 | ||
4667 | if (EQ (attr, QCwidth)) | |
4668 | xlfd = XLFD_SWIDTH; | |
4669 | else if (EQ (attr, QCheight)) | |
4670 | xlfd = XLFD_POINT_SIZE; | |
4671 | else if (EQ (attr, QCweight)) | |
4672 | xlfd = XLFD_WEIGHT; | |
4673 | else if (EQ (attr, QCslant)) | |
4674 | xlfd = XLFD_SLANT; | |
4675 | else | |
4676 | break; | |
4677 | ||
4678 | if (indices[i] != 0) | |
4679 | break; | |
4680 | indices[i] = xlfd; | |
4681 | } | |
4682 | ||
4683 | if (!NILP (list) | |
4684 | || i != DIM (indices) | |
4685 | || indices[0] == 0 | |
4686 | || indices[1] == 0 | |
4687 | || indices[2] == 0 | |
4688 | || indices[3] == 0) | |
4689 | signal_error ("Invalid font sort order", order); | |
4690 | ||
4691 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
4692 | { | |
4693 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
4694 | free_all_realized_faces (Qnil); | |
4695 | } | |
4696 | ||
4697 | return Qnil; | |
4698 | } | |
4699 | ||
4700 | ||
4701 | DEFUN ("internal-set-alternative-font-family-alist", | |
4702 | Finternal_set_alternative_font_family_alist, | |
4703 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
4704 | "Define alternative font families to try in face font selection.\n\ | |
4705 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
4706 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
4707 | be found. Value is ALIST.") | |
4708 | (alist) | |
4709 | Lisp_Object alist; | |
4710 | { | |
4711 | CHECK_LIST (alist, 0); | |
4712 | Vface_alternative_font_family_alist = alist; | |
4713 | free_all_realized_faces (Qnil); | |
4714 | return alist; | |
4715 | } | |
4716 | ||
4717 | ||
4718 | #ifdef HAVE_X_WINDOWS | |
4719 | ||
4720 | /* Return the X registry and encoding of font name FONT_NAME on frame F. | |
4721 | Value is nil if not successful. */ | |
4722 | ||
4723 | static Lisp_Object | |
4724 | deduce_unibyte_registry (f, font_name) | |
4725 | struct frame *f; | |
4726 | char *font_name; | |
4727 | { | |
4728 | struct font_name font; | |
4729 | Lisp_Object registry = Qnil; | |
4730 | ||
4731 | font.name = STRDUPA (font_name); | |
4732 | if (split_font_name (f, &font, 0)) | |
4733 | { | |
4734 | char *buffer; | |
4735 | ||
4736 | /* Extract registry and encoding. */ | |
4737 | buffer = (char *) alloca (strlen (font.fields[XLFD_REGISTRY]) | |
4738 | + strlen (font.fields[XLFD_ENCODING]) | |
4739 | + 10); | |
4740 | strcpy (buffer, font.fields[XLFD_REGISTRY]); | |
4741 | strcat (buffer, "-"); | |
4742 | strcat (buffer, font.fields[XLFD_ENCODING]); | |
4743 | registry = build_string (buffer); | |
4744 | } | |
4745 | ||
4746 | return registry; | |
4747 | } | |
4748 | ||
4749 | ||
4750 | /* Value is non-zero if FONT is the name of a scalable font. The | |
4751 | X11R6 XLFD spec says that point size, pixel size, and average width | |
4752 | are zero for scalable fonts. Intlfonts contain at least one | |
4753 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
4754 | just test average width. */ | |
4755 | ||
4756 | static int | |
4757 | font_scalable_p (font) | |
4758 | struct font_name *font; | |
4759 | { | |
4760 | char *s = font->fields[XLFD_AVGWIDTH]; | |
4761 | return *s == '0' && *(s + 1) == '\0'; | |
4762 | } | |
4763 | ||
4764 | ||
4765 | /* Value is non-zero if FONT1 is a better match for font attributes | |
4766 | VALUES than FONT2. VALUES is an array of face attribute values in | |
4767 | font sort order. COMPARE_PT_P zero means don't compare point | |
4768 | sizes. */ | |
4769 | ||
4770 | static int | |
4771 | better_font_p (values, font1, font2, compare_pt_p) | |
4772 | int *values; | |
4773 | struct font_name *font1, *font2; | |
4774 | int compare_pt_p; | |
4775 | { | |
4776 | int i; | |
4777 | ||
4778 | for (i = 0; i < 4; ++i) | |
4779 | { | |
4780 | int xlfd_idx = font_sort_order[i]; | |
4781 | ||
4782 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
4783 | { | |
4784 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
4785 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
4786 | ||
4787 | if (delta1 > delta2) | |
4788 | return 0; | |
4789 | else if (delta1 < delta2) | |
4790 | return 1; | |
4791 | else | |
4792 | { | |
4793 | /* The difference may be equal because, e.g., the face | |
4794 | specifies `italic' but we have only `regular' and | |
4795 | `oblique'. Prefer `oblique' in this case. */ | |
4796 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
4797 | && font1->numeric[xlfd_idx] > values[i] | |
4798 | && font2->numeric[xlfd_idx] < values[i]) | |
4799 | return 1; | |
4800 | } | |
4801 | } | |
4802 | } | |
4803 | ||
4804 | return 0; | |
4805 | } | |
4806 | ||
4807 | ||
4808 | #if SCALABLE_FONTS | |
4809 | ||
4810 | /* Value is non-zero if FONT is an exact match for face attributes in | |
4811 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
4812 | sort order. */ | |
4813 | ||
4814 | static int | |
4815 | exact_face_match_p (specified, font) | |
4816 | int *specified; | |
4817 | struct font_name *font; | |
4818 | { | |
4819 | int i; | |
4820 | ||
4821 | for (i = 0; i < 4; ++i) | |
4822 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
4823 | break; | |
4824 | ||
4825 | return i == 4; | |
4826 | } | |
4827 | ||
4828 | ||
4829 | /* Value is the name of a scaled font, generated from scalable font | |
4830 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
4831 | Value is allocated from heap. */ | |
4832 | ||
4833 | static char * | |
4834 | build_scalable_font_name (f, font, specified_pt) | |
4835 | struct frame *f; | |
4836 | struct font_name *font; | |
4837 | int specified_pt; | |
4838 | { | |
4839 | char point_size[20], pixel_size[20]; | |
4840 | int pixel_value; | |
4841 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
4842 | double pt; | |
4843 | ||
4844 | /* If scalable font is for a specific resolution, compute | |
4845 | the point size we must specify from the resolution of | |
4846 | the display and the specified resolution of the font. */ | |
4847 | if (font->numeric[XLFD_RESY] != 0) | |
4848 | { | |
4849 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
4850 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
4851 | } | |
4852 | else | |
4853 | { | |
4854 | pt = specified_pt; | |
4855 | pixel_value = resy / 720.0 * pt; | |
4856 | } | |
4857 | ||
4858 | /* Set point size of the font. */ | |
4859 | sprintf (point_size, "%d", (int) pt); | |
4860 | font->fields[XLFD_POINT_SIZE] = point_size; | |
4861 | font->numeric[XLFD_POINT_SIZE] = pt; | |
4862 | ||
4863 | /* Set pixel size. */ | |
4864 | sprintf (pixel_size, "%d", pixel_value); | |
4865 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
4866 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
4867 | ||
4868 | /* If font doesn't specify its resolution, use the | |
4869 | resolution of the display. */ | |
4870 | if (font->numeric[XLFD_RESY] == 0) | |
4871 | { | |
4872 | char buffer[20]; | |
4873 | sprintf (buffer, "%d", (int) resy); | |
4874 | font->fields[XLFD_RESY] = buffer; | |
4875 | font->numeric[XLFD_RESY] = resy; | |
4876 | } | |
4877 | ||
4878 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) | |
4879 | { | |
4880 | char buffer[20]; | |
4881 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
4882 | sprintf (buffer, "%d", resx); | |
4883 | font->fields[XLFD_RESX] = buffer; | |
4884 | font->numeric[XLFD_RESX] = resx; | |
4885 | } | |
4886 | ||
4887 | return build_font_name (font); | |
4888 | } | |
4889 | ||
4890 | ||
4891 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
4892 | can't run a Lisp function here since this function may be called | |
4893 | with input blocked. */ | |
4894 | ||
4895 | static int | |
4896 | may_use_scalable_font_p (font, name) | |
4897 | struct font_name *font; | |
4898 | char *name; | |
4899 | { | |
4900 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
4901 | return 1; | |
4902 | else if (CONSP (Vscalable_fonts_allowed)) | |
4903 | { | |
4904 | Lisp_Object tail, regexp; | |
4905 | ||
4906 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) | |
4907 | { | |
4908 | regexp = XCAR (tail); | |
4909 | if (STRINGP (regexp) | |
4910 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
4911 | return 1; | |
4912 | } | |
4913 | } | |
4914 | ||
4915 | return 0; | |
4916 | } | |
4917 | ||
4918 | #endif /* SCALABLE_FONTS != 0 */ | |
4919 | ||
4920 | ||
4921 | /* Return the name of the best matching font for face attributes | |
4922 | ATTRS in the array of font_name structures FONTS which contains | |
4923 | NFONTS elements. Value is a font name which is allocated from | |
4924 | the heap. FONTS is freed by this function. */ | |
4925 | ||
4926 | static char * | |
4927 | best_matching_font (f, attrs, fonts, nfonts) | |
4928 | struct frame *f; | |
4929 | Lisp_Object *attrs; | |
4930 | struct font_name *fonts; | |
4931 | int nfonts; | |
4932 | { | |
4933 | char *font_name; | |
4934 | struct font_name *best; | |
4935 | int i, pt; | |
4936 | int specified[4]; | |
4937 | int exact_p; | |
4938 | ||
4939 | if (nfonts == 0) | |
4940 | return NULL; | |
4941 | ||
4942 | /* Make specified font attributes available in `specified', | |
4943 | indexed by sort order. */ | |
4944 | for (i = 0; i < DIM (font_sort_order); ++i) | |
4945 | { | |
4946 | int xlfd_idx = font_sort_order[i]; | |
4947 | ||
4948 | if (xlfd_idx == XLFD_SWIDTH) | |
4949 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
4950 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
4951 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4952 | else if (xlfd_idx == XLFD_WEIGHT) | |
4953 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
4954 | else if (xlfd_idx == XLFD_SLANT) | |
4955 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
4956 | else | |
4957 | abort (); | |
4958 | } | |
4959 | ||
4960 | #if SCALABLE_FONTS | |
4961 | ||
4962 | /* Set to 1 */ | |
4963 | exact_p = 0; | |
4964 | ||
4965 | /* Start with the first non-scalable font in the list. */ | |
4966 | for (i = 0; i < nfonts; ++i) | |
4967 | if (!font_scalable_p (fonts + i)) | |
4968 | break; | |
4969 | ||
4970 | /* Find the best match among the non-scalable fonts. */ | |
4971 | if (i < nfonts) | |
4972 | { | |
4973 | best = fonts + i; | |
4974 | ||
4975 | for (i = 1; i < nfonts; ++i) | |
4976 | if (!font_scalable_p (fonts + i) | |
4977 | && better_font_p (specified, fonts + i, best, 1)) | |
4978 | { | |
4979 | best = fonts + i; | |
4980 | ||
4981 | exact_p = exact_face_match_p (specified, best); | |
4982 | if (exact_p) | |
4983 | break; | |
4984 | } | |
4985 | ||
4986 | } | |
4987 | else | |
4988 | best = NULL; | |
4989 | ||
4990 | /* Unless we found an exact match among non-scalable fonts, see if | |
4991 | we can find a better match among scalable fonts. */ | |
4992 | if (!exact_p) | |
4993 | { | |
4994 | /* A scalable font is better if | |
4995 | ||
4996 | 1. its weight, slant, swidth attributes are better, or. | |
4997 | ||
4998 | 2. the best non-scalable font doesn't have the required | |
4999 | point size, and the scalable fonts weight, slant, swidth | |
5000 | isn't worse. */ | |
5001 | ||
5002 | int non_scalable_has_exact_height_p; | |
5003 | ||
5004 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5005 | non_scalable_has_exact_height_p = 1; | |
5006 | else | |
5007 | non_scalable_has_exact_height_p = 0; | |
5008 | ||
5009 | for (i = 0; i < nfonts; ++i) | |
5010 | if (font_scalable_p (fonts + i)) | |
5011 | { | |
5012 | if (best == NULL | |
5013 | || better_font_p (specified, fonts + i, best, 0) | |
5014 | || (!non_scalable_has_exact_height_p | |
5015 | && !better_font_p (specified, best, fonts + i, 0))) | |
5016 | best = fonts + i; | |
5017 | } | |
5018 | } | |
5019 | ||
5020 | if (font_scalable_p (best)) | |
5021 | font_name = build_scalable_font_name (f, best, pt); | |
5022 | else | |
5023 | font_name = build_font_name (best); | |
5024 | ||
5025 | #else /* !SCALABLE_FONTS */ | |
5026 | ||
5027 | /* Find the best non-scalable font. */ | |
5028 | best = fonts; | |
5029 | ||
5030 | for (i = 1; i < nfonts; ++i) | |
5031 | { | |
5032 | xassert (!font_scalable_p (fonts + i)); | |
5033 | if (better_font_p (specified, fonts + i, best, 1)) | |
5034 | best = fonts + i; | |
5035 | } | |
5036 | ||
5037 | font_name = build_font_name (best); | |
5038 | ||
5039 | #endif /* !SCALABLE_FONTS */ | |
5040 | ||
5041 | /* Free font_name structures. */ | |
5042 | free_font_names (fonts, nfonts); | |
5043 | ||
5044 | return font_name; | |
5045 | } | |
5046 | ||
5047 | ||
5048 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5049 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5050 | of font_name structures for the fonts matched. Value is the number | |
5051 | of fonts found. */ | |
5052 | ||
5053 | static int | |
5054 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5055 | struct frame *f; | |
5056 | Lisp_Object *attrs; | |
5057 | char *pattern, *family, *registry; | |
5058 | struct font_name **fonts; | |
5059 | { | |
5060 | int nfonts; | |
5061 | ||
5062 | if (family == NULL) | |
5063 | family = LSTRDUPA (attrs[LFACE_FAMILY_INDEX]); | |
5064 | ||
5065 | nfonts = font_list (f, pattern, family, registry, fonts); | |
5066 | ||
5067 | if (nfonts == 0) | |
5068 | { | |
5069 | Lisp_Object alter; | |
5070 | ||
5071 | /* Try alternative font families from | |
5072 | Vface_alternative_font_family_alist. */ | |
5073 | alter = Fassoc (build_string (family), | |
5074 | Vface_alternative_font_family_alist); | |
5075 | if (CONSP (alter)) | |
5076 | for (alter = XCDR (alter); | |
5077 | CONSP (alter) && nfonts == 0; | |
5078 | alter = XCDR (alter)) | |
5079 | { | |
5080 | if (STRINGP (XCAR (alter))) | |
5081 | { | |
5082 | family = LSTRDUPA (XCAR (alter)); | |
5083 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5084 | } | |
5085 | } | |
5086 | ||
5087 | /* Try font family of the default face or "fixed". */ | |
5088 | if (nfonts == 0) | |
5089 | { | |
5090 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5091 | if (dflt) | |
5092 | family = LSTRDUPA (dflt->lface[LFACE_FAMILY_INDEX]); | |
5093 | else | |
5094 | family = "fixed"; | |
5095 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5096 | } | |
5097 | ||
5098 | /* Try any family with the given registry. */ | |
5099 | if (nfonts == 0) | |
5100 | nfonts = font_list (f, NULL, "*", registry, fonts); | |
5101 | } | |
5102 | ||
5103 | return nfonts; | |
5104 | } | |
5105 | ||
5106 | ||
5107 | /* Return the registry and encoding pattern that fonts for CHARSET | |
5108 | should match. Value is allocated from the heap. */ | |
5109 | ||
5110 | char * | |
5111 | x_charset_registry (charset) | |
5112 | int charset; | |
5113 | { | |
5114 | Lisp_Object prop, charset_plist; | |
5115 | char *registry; | |
5116 | ||
5117 | /* Get registry and encoding from the charset's plist. */ | |
5118 | charset_plist = CHARSET_TABLE_INFO (charset, CHARSET_PLIST_IDX); | |
5119 | prop = Fplist_get (charset_plist, Qx_charset_registry); | |
5120 | ||
5121 | if (STRINGP (prop)) | |
5122 | { | |
5123 | if (index (XSTRING (prop)->data, '-')) | |
5124 | registry = xstrdup (XSTRING (prop)->data); | |
5125 | else | |
5126 | { | |
5127 | /* If registry doesn't contain a `-', make it a pattern. */ | |
5128 | registry = (char *) xmalloc (STRING_BYTES (XSTRING (prop)) + 5); | |
5129 | strcpy (registry, XSTRING (prop)->data); | |
5130 | strcat (registry, "*-*"); | |
5131 | } | |
5132 | } | |
5133 | else if (STRINGP (Vface_default_registry)) | |
5134 | registry = xstrdup (XSTRING (Vface_default_registry)->data); | |
5135 | else | |
5136 | registry = xstrdup ("iso8859-1"); | |
5137 | ||
5138 | return registry; | |
5139 | } | |
5140 | ||
5141 | ||
5142 | /* Return the fontset id of the fontset name or alias name given by | |
5143 | the family attribute of ATTRS on frame F. Value is -1 if the | |
5144 | family attribute of ATTRS doesn't name a fontset. */ | |
5145 | ||
5146 | static int | |
5147 | face_fontset (f, attrs) | |
5148 | struct frame *f; | |
5149 | Lisp_Object *attrs; | |
5150 | { | |
5151 | Lisp_Object name = attrs[LFACE_FAMILY_INDEX]; | |
5152 | int fontset; | |
5153 | ||
5154 | name = Fquery_fontset (name, Qnil); | |
5155 | if (NILP (name)) | |
5156 | fontset = -1; | |
5157 | else | |
5158 | fontset = fs_query_fontset (f, XSTRING (name)->data); | |
5159 | ||
5160 | return fontset; | |
5161 | } | |
5162 | ||
5163 | ||
5164 | /* Get the font to use for the face realizing the fully-specified Lisp | |
5165 | face ATTRS for charset CHARSET on frame F. CHARSET < 0 means | |
5166 | unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use | |
5167 | in this case. Value is the font name which is allocated from the | |
5168 | heap (which means that it must be freed eventually). */ | |
5169 | ||
5170 | static char * | |
5171 | choose_face_font (f, attrs, charset, unibyte_registry) | |
5172 | struct frame *f; | |
5173 | Lisp_Object *attrs; | |
5174 | int charset; | |
5175 | Lisp_Object unibyte_registry; | |
5176 | { | |
5177 | struct font_name *fonts; | |
5178 | int nfonts; | |
5179 | char *registry; | |
5180 | ||
5181 | /* ATTRS must be fully-specified. */ | |
5182 | xassert (lface_fully_specified_p (attrs)); | |
5183 | ||
5184 | if (STRINGP (unibyte_registry)) | |
5185 | registry = xstrdup (XSTRING (unibyte_registry)->data); | |
5186 | else | |
5187 | registry = x_charset_registry (charset); | |
5188 | ||
5189 | nfonts = try_font_list (f, attrs, NULL, NULL, registry, &fonts); | |
5190 | xfree (registry); | |
5191 | return best_matching_font (f, attrs, fonts, nfonts); | |
5192 | } | |
5193 | ||
5194 | ||
5195 | /* Choose a font to use on frame F to display CHARSET using FONTSET | |
5196 | with Lisp face attributes specified by ATTRS. CHARSET may be any | |
5197 | valid charset except CHARSET_COMPOSITION. CHARSET < 0 means | |
5198 | unibyte text. If the fontset doesn't contain a font pattern for | |
5199 | charset, use the pattern for CHARSET_ASCII. Value is the font name | |
5200 | which is allocated from the heap and must be freed by the caller. */ | |
5201 | ||
5202 | static char * | |
5203 | choose_face_fontset_font (f, attrs, fontset, charset) | |
5204 | struct frame *f; | |
5205 | Lisp_Object *attrs; | |
5206 | int fontset, charset; | |
5207 | { | |
5208 | char *pattern; | |
5209 | char *font_name = NULL; | |
5210 | struct fontset_info *fontset_info; | |
5211 | struct font_name *fonts; | |
5212 | int nfonts; | |
5213 | ||
5214 | xassert (charset != CHARSET_COMPOSITION); | |
5215 | xassert (fontset >= 0 && fontset < FRAME_FONTSET_DATA (f)->n_fontsets); | |
5216 | ||
5217 | /* For unibyte text, use the ASCII font of the fontset. Using the | |
5218 | ASCII font seems to be the most reasonable thing we can do in | |
5219 | this case. */ | |
5220 | if (charset < 0) | |
5221 | charset = CHARSET_ASCII; | |
5222 | ||
5223 | /* Get the font name pattern to use for CHARSET from the fontset. */ | |
5224 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
5225 | pattern = fontset_info->fontname[charset]; | |
5226 | if (!pattern) | |
5227 | pattern = fontset_info->fontname[CHARSET_ASCII]; | |
5228 | xassert (pattern); | |
5229 | ||
5230 | /* Get a list of fonts matching that pattern and choose the | |
5231 | best match for the specified face attributes from it. */ | |
5232 | nfonts = try_font_list (f, attrs, pattern, NULL, NULL, &fonts); | |
5233 | font_name = best_matching_font (f, attrs, fonts, nfonts); | |
5234 | return font_name; | |
5235 | } | |
5236 | ||
5237 | #endif /* HAVE_X_WINDOWS */ | |
5238 | ||
5239 | ||
5240 | \f | |
5241 | /*********************************************************************** | |
5242 | Face Realization | |
5243 | ***********************************************************************/ | |
5244 | ||
5245 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5246 | of F don't contain enough information needed to realize the default | |
5247 | face. */ | |
5248 | ||
5249 | static int | |
5250 | realize_basic_faces (f) | |
5251 | struct frame *f; | |
5252 | { | |
5253 | int success_p = 0; | |
5254 | ||
5255 | if (realize_default_face (f)) | |
5256 | { | |
92610620 | 5257 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5258 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5259 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5260 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5261 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5262 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5263 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5264 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
82641697 GM |
5265 | success_p = 1; |
5266 | } | |
5267 | ||
5268 | return success_p; | |
5269 | } | |
5270 | ||
5271 | ||
5272 | /* Realize the default face on frame F. If the face is not fully | |
5273 | specified, make it fully-specified. Attributes of the default face | |
5274 | that are not explicitly specified are taken from frame parameters. */ | |
5275 | ||
5276 | static int | |
5277 | realize_default_face (f) | |
5278 | struct frame *f; | |
5279 | { | |
5280 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5281 | Lisp_Object lface; | |
5282 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5283 | Lisp_Object unibyte_registry; | |
5284 | Lisp_Object frame_font; | |
5285 | struct face *face; | |
5286 | int fontset; | |
5287 | ||
5288 | /* If the `default' face is not yet known, create it. */ | |
5289 | lface = lface_from_face_name (f, Qdefault, 0); | |
5290 | if (NILP (lface)) | |
5291 | { | |
5292 | Lisp_Object frame; | |
5293 | XSETFRAME (frame, f); | |
5294 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5295 | } | |
5296 | ||
5297 | #ifdef HAVE_X_WINDOWS | |
5298 | if (FRAME_X_P (f)) | |
5299 | { | |
5300 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5301 | frame_font = Fassq (Qfont, f->param_alist); | |
5302 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5303 | frame_font = XCDR (frame_font); | |
5304 | ||
5305 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
5306 | if (fontset >= 0) | |
5307 | { | |
5308 | /* If frame_font is a fontset name, don't use that for | |
5309 | determining font-related attributes of the default face | |
5310 | because it is just an artificial name. Use the ASCII font of | |
5311 | the fontset, instead. */ | |
5312 | struct font_info *font_info; | |
5313 | struct font_name font; | |
5314 | ||
5315 | BLOCK_INPUT; | |
5316 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
5317 | NULL, fontset); | |
5318 | UNBLOCK_INPUT; | |
5319 | ||
5320 | /* Set weight etc. from the ASCII font. */ | |
5321 | if (!set_lface_from_font_name (f, lface, font_info->full_name, 0)) | |
5322 | return 0; | |
5323 | ||
5324 | /* Remember registry and encoding of the frame font. */ | |
5325 | unibyte_registry = deduce_unibyte_registry (f, font_info->full_name); | |
5326 | if (STRINGP (unibyte_registry)) | |
5327 | Vface_default_registry = unibyte_registry; | |
5328 | else | |
5329 | Vface_default_registry = build_string ("iso8859-1"); | |
5330 | ||
5331 | /* But set the family to the fontset alias name. Implementation | |
5332 | note: When a font is passed to Emacs via `-fn FONT', a | |
5333 | fontset is created in `x-win.el' whose name ends in | |
5334 | `fontset-startup'. This fontset has an alias name that is | |
5335 | equal to frame_font. */ | |
5336 | xassert (STRINGP (frame_font)); | |
5337 | font.name = LSTRDUPA (frame_font); | |
5338 | ||
5339 | if (!split_font_name (f, &font, 1) | |
5340 | || xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0 | |
5341 | || xstricmp (font.fields[XLFD_ENCODING], "startup") != 0) | |
5342 | LFACE_FAMILY (lface) = frame_font; | |
5343 | } | |
5344 | else | |
5345 | { | |
5346 | /* Frame parameters contain a real font. Fill default face | |
5347 | attributes from that font. */ | |
5348 | if (!set_lface_from_font_name (f, lface, | |
5349 | XSTRING (frame_font)->data, 0)) | |
5350 | return 0; | |
5351 | ||
5352 | /* Remember registry and encoding of the frame font. */ | |
5353 | unibyte_registry | |
5354 | = deduce_unibyte_registry (f, XSTRING (frame_font)->data); | |
5355 | if (STRINGP (unibyte_registry)) | |
5356 | Vface_default_registry = unibyte_registry; | |
5357 | else | |
5358 | Vface_default_registry = build_string ("iso8859-1"); | |
5359 | } | |
5360 | } | |
5361 | #endif /* HAVE_X_WINDOWS */ | |
5362 | ||
44747bd0 | 5363 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5364 | { |
5365 | LFACE_FAMILY (lface) = build_string ("default"); | |
5366 | LFACE_SWIDTH (lface) = Qnormal; | |
5367 | LFACE_HEIGHT (lface) = make_number (1); | |
5368 | LFACE_WEIGHT (lface) = Qnormal; | |
5369 | LFACE_SLANT (lface) = Qnormal; | |
5370 | } | |
5371 | ||
5372 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) | |
5373 | LFACE_UNDERLINE (lface) = Qnil; | |
5374 | ||
5375 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) | |
5376 | LFACE_OVERLINE (lface) = Qnil; | |
5377 | ||
5378 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) | |
5379 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
5380 | ||
5381 | if (UNSPECIFIEDP (LFACE_BOX (lface))) | |
5382 | LFACE_BOX (lface) = Qnil; | |
5383 | ||
5384 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) | |
5385 | LFACE_INVERSE (lface) = Qnil; | |
5386 | ||
5387 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
5388 | { | |
5389 | /* This function is called so early that colors are not yet | |
5390 | set in the frame parameter list. */ | |
5391 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
5392 | ||
5393 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5394 | LFACE_FOREGROUND (lface) = XCDR (color); | |
5395 | else if (FRAME_X_P (f)) | |
5396 | return 0; | |
44747bd0 | 5397 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
82641697 GM |
5398 | /* Frame parameters for terminal frames usually don't contain |
5399 | a color. Use an empty string to indicate that the face | |
5400 | should use the (unknown) default color of the terminal. */ | |
5401 | LFACE_FOREGROUND (lface) = build_string (""); | |
5402 | else | |
5403 | abort (); | |
5404 | } | |
5405 | ||
5406 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
5407 | { | |
5408 | /* This function is called so early that colors are not yet | |
5409 | set in the frame parameter list. */ | |
5410 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5411 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5412 | LFACE_BACKGROUND (lface) = XCDR (color); | |
5413 | else if (FRAME_X_P (f)) | |
5414 | return 0; | |
44747bd0 | 5415 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
82641697 GM |
5416 | /* Frame parameters for terminal frames usually don't contain |
5417 | a color. Use an empty string to indicate that the face | |
5418 | should use the (unknown) default color of the terminal. */ | |
5419 | LFACE_BACKGROUND (lface) = build_string (""); | |
5420 | else | |
5421 | abort (); | |
5422 | } | |
5423 | ||
5424 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) | |
5425 | LFACE_STIPPLE (lface) = Qnil; | |
5426 | ||
5427 | /* Realize the face; it must be fully-specified now. */ | |
5428 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5429 | check_lface (lface); | |
5430 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
5431 | face = realize_face (c, attrs, CHARSET_ASCII); | |
5432 | ||
5433 | /* Remove the former default face. */ | |
5434 | if (c->used > DEFAULT_FACE_ID) | |
5435 | { | |
5436 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5437 | uncache_face (c, default_face); | |
5438 | free_realized_face (f, default_face); | |
5439 | } | |
5440 | ||
5441 | /* Insert the new default face. */ | |
5442 | cache_face (c, face, lface_hash (attrs)); | |
5443 | xassert (face->id == DEFAULT_FACE_ID); | |
5444 | return 1; | |
5445 | } | |
5446 | ||
5447 | ||
5448 | /* Realize basic faces other than the default face in face cache C. | |
5449 | SYMBOL is the face name, ID is the face id the realized face must | |
5450 | have. The default face must have been realized already. */ | |
5451 | ||
5452 | static void | |
5453 | realize_named_face (f, symbol, id) | |
5454 | struct frame *f; | |
5455 | Lisp_Object symbol; | |
5456 | int id; | |
5457 | { | |
5458 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5459 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
5460 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5461 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5462 | struct face *new_face; | |
5463 | ||
5464 | /* The default face must exist and be fully specified. */ | |
5465 | get_lface_attributes (f, Qdefault, attrs, 1); | |
5466 | check_lface_attrs (attrs); | |
5467 | xassert (lface_fully_specified_p (attrs)); | |
5468 | ||
5469 | /* If SYMBOL isn't know as a face, create it. */ | |
5470 | if (NILP (lface)) | |
5471 | { | |
5472 | Lisp_Object frame; | |
5473 | XSETFRAME (frame, f); | |
5474 | lface = Finternal_make_lisp_face (symbol, frame); | |
5475 | } | |
5476 | ||
5477 | /* Merge SYMBOL's face with the default face. */ | |
5478 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5479 | merge_face_vectors (symbol_attrs, attrs); | |
5480 | ||
5481 | /* Realize the face. */ | |
5482 | new_face = realize_face (c, attrs, CHARSET_ASCII); | |
5483 | ||
5484 | /* Remove the former face. */ | |
5485 | if (c->used > id) | |
5486 | { | |
5487 | struct face *old_face = c->faces_by_id[id]; | |
5488 | uncache_face (c, old_face); | |
5489 | free_realized_face (f, old_face); | |
5490 | } | |
5491 | ||
5492 | /* Insert the new face. */ | |
5493 | cache_face (c, new_face, lface_hash (attrs)); | |
5494 | xassert (new_face->id == id); | |
5495 | } | |
5496 | ||
5497 | ||
5498 | /* Realize the fully-specified face with attributes ATTRS in face | |
5499 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5500 | 0. Value is a pointer to the newly created realized face. */ | |
5501 | ||
5502 | static struct face * | |
5503 | realize_face (c, attrs, charset) | |
5504 | struct face_cache *c; | |
5505 | Lisp_Object *attrs; | |
5506 | int charset; | |
5507 | { | |
5508 | struct face *face; | |
5509 | ||
5510 | /* LFACE must be fully specified. */ | |
5511 | xassert (c != NULL); | |
5512 | check_lface_attrs (attrs); | |
5513 | ||
5514 | if (FRAME_X_P (c->f)) | |
5515 | face = realize_x_face (c, attrs, charset); | |
44747bd0 | 5516 | else if (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)) |
82641697 GM |
5517 | face = realize_tty_face (c, attrs, charset); |
5518 | else | |
5519 | abort (); | |
5520 | ||
5521 | return face; | |
5522 | } | |
5523 | ||
5524 | ||
5525 | /* Realize the fully-specified face with attributes ATTRS in face | |
5526 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5527 | 0. Do it for X frame C->f. Value is a pointer to the newly | |
5528 | created realized face. */ | |
5529 | ||
5530 | static struct face * | |
5531 | realize_x_face (c, attrs, charset) | |
5532 | struct face_cache *c; | |
5533 | Lisp_Object *attrs; | |
5534 | int charset; | |
5535 | { | |
5536 | #ifdef HAVE_X_WINDOWS | |
5537 | struct face *face, *default_face; | |
5538 | struct frame *f = c->f; | |
5539 | Lisp_Object stipple, overline, strike_through, box; | |
5540 | Lisp_Object unibyte_registry; | |
5541 | struct gcpro gcpro1; | |
5542 | ||
5543 | xassert (FRAME_X_P (f)); | |
5544 | ||
5545 | /* If realizing a face for use in unibyte text, get the X registry | |
5546 | and encoding to use from Vface_default_registry. */ | |
5547 | if (charset < 0) | |
5548 | unibyte_registry = (STRINGP (Vface_default_registry) | |
5549 | ? Vface_default_registry | |
5550 | : build_string ("iso8859-1")); | |
5551 | else | |
5552 | unibyte_registry = Qnil; | |
5553 | GCPRO1 (unibyte_registry); | |
5554 | ||
5555 | /* Allocate a new realized face. */ | |
5556 | face = make_realized_face (attrs, charset, unibyte_registry); | |
5557 | ||
5558 | /* Determine the font to use. Most of the time, the font will be | |
5559 | the same as the font of the default face, so try that first. */ | |
5560 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5561 | if (default_face | |
5562 | && FACE_SUITABLE_FOR_CHARSET_P (default_face, charset) | |
5563 | && lface_same_font_attributes_p (default_face->lface, attrs)) | |
5564 | { | |
5565 | face->font = default_face->font; | |
5566 | face->fontset = default_face->fontset; | |
5567 | face->font_info_id = default_face->font_info_id; | |
5568 | face->font_name = default_face->font_name; | |
5569 | face->registry = default_face->registry; | |
5570 | } | |
5571 | else if (charset >= 0) | |
5572 | { | |
5573 | /* For all charsets except CHARSET_COMPOSITION, we use our own | |
5574 | font selection functions to choose a best matching font for | |
5575 | the specified face attributes. If the face specifies a | |
5576 | fontset alias name, the fontset determines the font name | |
5577 | pattern, otherwise we construct a font pattern from face | |
5578 | attributes and charset. | |
5579 | ||
5580 | If charset is CHARSET_COMPOSITION, we always construct a face | |
5581 | with a fontset, even if the face doesn't specify a fontset alias | |
5582 | (we use fontset-standard in that case). When the composite | |
5583 | character is displayed in xterm.c, a suitable concrete font is | |
5584 | loaded in x_get_char_font_and_encoding. */ | |
5585 | ||
5586 | char *font_name = NULL; | |
5587 | int fontset = face_fontset (f, attrs); | |
5588 | ||
5589 | if (charset == CHARSET_COMPOSITION) | |
5590 | fontset = max (0, fontset); | |
5591 | else if (fontset < 0) | |
5592 | font_name = choose_face_font (f, attrs, charset, Qnil); | |
5593 | else | |
5594 | { | |
5595 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5596 | fontset = -1; | |
5597 | } | |
5598 | ||
5599 | load_face_font_or_fontset (f, face, font_name, fontset); | |
5600 | xfree (font_name); | |
5601 | } | |
5602 | else | |
5603 | { | |
5604 | /* Unibyte case, and font is not equal to that of the default | |
5605 | face. UNIBYTE_REGISTRY is the X registry and encoding the | |
5606 | font should have. What is a reasonable thing to do if the | |
5607 | user specified a fontset alias name for the face in this | |
5608 | case? We choose a font by taking the ASCII font of the | |
5609 | fontset, but using UNIBYTE_REGISTRY for its registry and | |
5610 | encoding. */ | |
5611 | ||
5612 | char *font_name = NULL; | |
5613 | int fontset = face_fontset (f, attrs); | |
5614 | ||
5615 | if (fontset < 0) | |
5616 | font_name = choose_face_font (f, attrs, charset, unibyte_registry); | |
5617 | else | |
5618 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5619 | ||
5620 | load_face_font_or_fontset (f, face, font_name, -1); | |
5621 | xfree (font_name); | |
5622 | } | |
5623 | ||
5624 | /* Load colors, and set remaining attributes. */ | |
5625 | ||
5626 | load_face_colors (f, face, attrs); | |
660ed669 | 5627 | |
82641697 GM |
5628 | /* Set up box. */ |
5629 | box = attrs[LFACE_BOX_INDEX]; | |
5630 | if (STRINGP (box)) | |
cb637678 | 5631 | { |
82641697 GM |
5632 | /* A simple box of line width 1 drawn in color given by |
5633 | the string. */ | |
5634 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5635 | LFACE_BOX_INDEX); | |
5636 | face->box = FACE_SIMPLE_BOX; | |
5637 | face->box_line_width = 1; | |
cb637678 | 5638 | } |
82641697 | 5639 | else if (INTEGERP (box)) |
42120bc7 | 5640 | { |
82641697 GM |
5641 | /* Simple box of specified line width in foreground color of the |
5642 | face. */ | |
5643 | xassert (XINT (box) > 0); | |
5644 | face->box = FACE_SIMPLE_BOX; | |
5645 | face->box_line_width = XFASTINT (box); | |
5646 | face->box_color = face->foreground; | |
5647 | face->box_color_defaulted_p = 1; | |
5648 | } | |
5649 | else if (CONSP (box)) | |
5650 | { | |
5651 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5652 | being one of `raised' or `sunken'. */ | |
5653 | face->box = FACE_SIMPLE_BOX; | |
5654 | face->box_color = face->foreground; | |
5655 | face->box_color_defaulted_p = 1; | |
5656 | face->box_line_width = 1; | |
5657 | ||
5658 | while (CONSP (box)) | |
42120bc7 | 5659 | { |
82641697 GM |
5660 | Lisp_Object keyword, value; |
5661 | ||
5662 | keyword = XCAR (box); | |
5663 | box = XCDR (box); | |
5664 | ||
5665 | if (!CONSP (box)) | |
5666 | break; | |
5667 | value = XCAR (box); | |
5668 | box = XCDR (box); | |
5669 | ||
5670 | if (EQ (keyword, QCline_width)) | |
5671 | { | |
5672 | if (INTEGERP (value) && XINT (value) > 0) | |
5673 | face->box_line_width = XFASTINT (value); | |
5674 | } | |
5675 | else if (EQ (keyword, QCcolor)) | |
5676 | { | |
5677 | if (STRINGP (value)) | |
5678 | { | |
5679 | face->box_color = load_color (f, face, value, | |
5680 | LFACE_BOX_INDEX); | |
5681 | face->use_box_color_for_shadows_p = 1; | |
5682 | } | |
5683 | } | |
5684 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5685 | { |
82641697 GM |
5686 | if (EQ (value, Qreleased_button)) |
5687 | face->box = FACE_RAISED_BOX; | |
5688 | else if (EQ (value, Qpressed_button)) | |
5689 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5690 | } |
42120bc7 RS |
5691 | } |
5692 | } | |
195f798e | 5693 | |
82641697 GM |
5694 | /* Text underline, overline, strike-through. */ |
5695 | ||
5696 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) | |
5697 | { | |
5698 | /* Use default color (same as foreground color). */ | |
5699 | face->underline_p = 1; | |
5700 | face->underline_defaulted_p = 1; | |
5701 | face->underline_color = 0; | |
5702 | } | |
5703 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 5704 | { |
82641697 GM |
5705 | /* Use specified color. */ |
5706 | face->underline_p = 1; | |
5707 | face->underline_defaulted_p = 0; | |
5708 | face->underline_color | |
5709 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
5710 | LFACE_UNDERLINE_INDEX); | |
195f798e | 5711 | } |
82641697 | 5712 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 5713 | { |
82641697 GM |
5714 | face->underline_p = 0; |
5715 | face->underline_defaulted_p = 0; | |
5716 | face->underline_color = 0; | |
7b00de84 JB |
5717 | } |
5718 | ||
82641697 GM |
5719 | overline = attrs[LFACE_OVERLINE_INDEX]; |
5720 | if (STRINGP (overline)) | |
cb637678 | 5721 | { |
82641697 GM |
5722 | face->overline_color |
5723 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
5724 | LFACE_OVERLINE_INDEX); | |
5725 | face->overline_p = 1; | |
cb637678 | 5726 | } |
82641697 | 5727 | else if (EQ (overline, Qt)) |
cb637678 | 5728 | { |
82641697 GM |
5729 | face->overline_color = face->foreground; |
5730 | face->overline_color_defaulted_p = 1; | |
5731 | face->overline_p = 1; | |
cb637678 JB |
5732 | } |
5733 | ||
82641697 GM |
5734 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
5735 | if (STRINGP (strike_through)) | |
5736 | { | |
5737 | face->strike_through_color | |
5738 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5739 | LFACE_STRIKE_THROUGH_INDEX); | |
5740 | face->strike_through_p = 1; | |
5741 | } | |
5742 | else if (EQ (strike_through, Qt)) | |
5743 | { | |
5744 | face->strike_through_color = face->foreground; | |
5745 | face->strike_through_color_defaulted_p = 1; | |
5746 | face->strike_through_p = 1; | |
5747 | } | |
867dd159 | 5748 | |
82641697 GM |
5749 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
5750 | if (!NILP (stipple)) | |
5751 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 5752 | |
82641697 GM |
5753 | UNGCPRO; |
5754 | xassert (face->fontset < 0 || face->charset == CHARSET_COMPOSITION); | |
5755 | xassert (FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
5756 | return face; | |
5757 | #endif /* HAVE_X_WINDOWS */ | |
660ed669 JB |
5758 | } |
5759 | ||
729425b1 | 5760 | |
82641697 GM |
5761 | /* Realize the fully-specified face with attributes ATTRS in face |
5762 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5763 | 0. Do it for TTY frame C->f. Value is a pointer to the newly | |
5764 | created realized face. */ | |
a8517066 | 5765 | |
82641697 GM |
5766 | static struct face * |
5767 | realize_tty_face (c, attrs, charset) | |
5768 | struct face_cache *c; | |
5769 | Lisp_Object *attrs; | |
5770 | int charset; | |
5771 | { | |
5772 | struct face *face; | |
5773 | int weight, slant; | |
5774 | Lisp_Object color; | |
729425b1 | 5775 | |
82641697 | 5776 | /* Frame must be a termcap frame. */ |
44747bd0 | 5777 | xassert (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)); |
82641697 GM |
5778 | |
5779 | /* Allocate a new realized face. */ | |
5780 | face = make_realized_face (attrs, charset, Qnil); | |
44747bd0 | 5781 | face->font_name = FRAME_MSDOS_P (c->f) ? "ms-dos" : "tty"; |
82641697 GM |
5782 | |
5783 | /* Map face attributes to TTY appearances. We map slant to | |
5784 | dimmed text because we want italic text to appear differently | |
5785 | and because dimmed text is probably used infrequently. */ | |
5786 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5787 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5788 | ||
5789 | if (weight > XLFD_WEIGHT_MEDIUM) | |
5790 | face->tty_bold_p = 1; | |
5791 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
5792 | face->tty_dim_p = 1; | |
5793 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
5794 | face->tty_underline_p = 1; | |
5795 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
5796 | face->tty_reverse_p = 1; | |
5797 | ||
5798 | /* Map color names to color indices. */ | |
5799 | face->foreground = face->background = FACE_TTY_DEFAULT_COLOR; | |
5800 | ||
5801 | color = attrs[LFACE_FOREGROUND_INDEX]; | |
5802 | if (XSTRING (color)->size | |
5803 | && (color = Fassoc (color, Vface_tty_color_alist), | |
5804 | CONSP (color))) | |
5805 | face->foreground = XINT (XCDR (color)); | |
5806 | ||
44747bd0 EZ |
5807 | #ifdef MSDOS |
5808 | if (FRAME_MSDOS_P (c->f) && face->foreground == FACE_TTY_DEFAULT_COLOR) | |
1697ca38 EZ |
5809 | { |
5810 | face->foreground = load_color (c->f, face, | |
5811 | attrs[LFACE_FOREGROUND_INDEX], | |
5812 | LFACE_FOREGROUND_INDEX); | |
5813 | /* If the foreground of the default face is the default color, | |
5814 | use the foreground color defined by the frame. */ | |
5815 | if (face->foreground == FACE_TTY_DEFAULT_COLOR) | |
5816 | { | |
5817 | face->foreground = FRAME_FOREGROUND_PIXEL (f); | |
5818 | attrs[LFACE_FOREGROUND_INDEX] = | |
5819 | build_string (msdos_stdcolor_name (face->foreground)); | |
5820 | } | |
5821 | } | |
44747bd0 EZ |
5822 | #endif |
5823 | ||
82641697 GM |
5824 | color = attrs[LFACE_BACKGROUND_INDEX]; |
5825 | if (XSTRING (color)->size | |
5826 | && (color = Fassoc (color, Vface_tty_color_alist), | |
5827 | CONSP (color))) | |
5828 | face->background = XINT (XCDR (color)); | |
729425b1 | 5829 | |
44747bd0 EZ |
5830 | #ifdef MSDOS |
5831 | if (FRAME_MSDOS_P (c->f) && face->background == FACE_TTY_DEFAULT_COLOR) | |
1697ca38 EZ |
5832 | { |
5833 | face->background = load_color (c->f, face, | |
5834 | attrs[LFACE_BACKGROUND_INDEX], | |
5835 | LFACE_BACKGROUND_INDEX); | |
5836 | /* If the background of the default face is the default color, | |
5837 | use the background color defined by the frame. */ | |
5838 | if (face->background == FACE_TTY_DEFAULT_COLOR) | |
5839 | { | |
5840 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
5841 | attrs[LFACE_BACKGROUND_INDEX] = | |
5842 | build_string (msdos_stdcolor_name (face->background)); | |
5843 | } | |
5844 | } | |
44747bd0 EZ |
5845 | |
5846 | /* Swap colors if face is inverse-video. */ | |
5847 | if (face->tty_reverse_p) | |
5848 | { | |
5849 | unsigned long tem = face->foreground; | |
5850 | ||
5851 | face->foreground = face->background; | |
5852 | face->background = tem; | |
5853 | } | |
5854 | #endif | |
5855 | ||
82641697 | 5856 | return face; |
729425b1 | 5857 | } |
867dd159 | 5858 | |
82641697 GM |
5859 | |
5860 | DEFUN ("face-register-tty-color", Fface_register_tty_color, | |
5861 | Sface_register_tty_color, 2, 2, 0, | |
5862 | "Say that COLOR is color number NUMBER on the terminal.\n\ | |
5863 | COLOR is a string, the color name. Value is COLOR.") | |
5864 | (color, number) | |
5865 | Lisp_Object color, number; | |
7b7739b1 | 5866 | { |
82641697 GM |
5867 | Lisp_Object entry; |
5868 | ||
5869 | CHECK_STRING (color, 0); | |
5870 | CHECK_NUMBER (number, 1); | |
5871 | entry = Fassoc (color, Vface_tty_color_alist); | |
5872 | if (NILP (entry)) | |
5873 | Vface_tty_color_alist = Fcons (Fcons (color, number), | |
5874 | Vface_tty_color_alist); | |
5875 | else | |
5876 | Fsetcdr (entry, number); | |
5877 | return color; | |
7b7739b1 JB |
5878 | } |
5879 | ||
867dd159 | 5880 | |
82641697 GM |
5881 | DEFUN ("face-clear-tty-colors", Fface_clear_tty_colors, |
5882 | Sface_clear_tty_colors, 0, 0, 0, | |
5883 | "Unregister all registered tty colors.") | |
5884 | () | |
660ed669 | 5885 | { |
82641697 | 5886 | return Vface_tty_color_alist = Qnil; |
660ed669 JB |
5887 | } |
5888 | ||
867dd159 | 5889 | |
82641697 GM |
5890 | DEFUN ("tty-defined-colors", Ftty_defined_colors, |
5891 | Stty_defined_colors, 0, 0, 0, | |
5892 | "Return a list of registered tty colors.") | |
5893 | () | |
867dd159 | 5894 | { |
82641697 | 5895 | Lisp_Object list, colors; |
867dd159 | 5896 | |
82641697 GM |
5897 | colors = Qnil; |
5898 | for (list = Vface_tty_color_alist; CONSP (list); list = XCDR (list)) | |
5899 | colors = Fcons (XCAR (XCAR (list)), colors); | |
867dd159 | 5900 | |
82641697 | 5901 | return colors; |
867dd159 | 5902 | } |
2e16580f | 5903 | |
82641697 GM |
5904 | |
5905 | \f | |
5906 | /*********************************************************************** | |
5907 | Computing Faces | |
5908 | ***********************************************************************/ | |
5909 | ||
5910 | /* Return the ID of the face to use to display character CH with face | |
5911 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
5912 | |
5913 | int | |
82641697 | 5914 | compute_char_face (f, ch, prop) |
2e16580f | 5915 | struct frame *f; |
82641697 GM |
5916 | int ch; |
5917 | Lisp_Object prop; | |
2e16580f | 5918 | { |
82641697 GM |
5919 | int face_id; |
5920 | int charset = (NILP (current_buffer->enable_multibyte_characters) | |
5921 | ? -1 | |
5922 | : CHAR_CHARSET (ch)); | |
5923 | ||
5924 | if (NILP (prop)) | |
5925 | face_id = FACE_FOR_CHARSET (f, DEFAULT_FACE_ID, charset); | |
5926 | else | |
2e16580f | 5927 | { |
82641697 GM |
5928 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
5929 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5930 | bcopy (default_face->lface, attrs, sizeof attrs); | |
5931 | merge_face_vector_with_property (f, attrs, prop); | |
5932 | face_id = lookup_face (f, attrs, charset); | |
2e16580f RS |
5933 | } |
5934 | ||
82641697 | 5935 | return face_id; |
2e16580f | 5936 | } |
bc0db68d | 5937 | |
b349f4fb | 5938 | |
82641697 GM |
5939 | /* Return the face ID associated with buffer position POS for |
5940 | displaying ASCII characters. Return in *ENDPTR the position at | |
5941 | which a different face is needed, as far as text properties and | |
5942 | overlays are concerned. W is a window displaying current_buffer. | |
5943 | ||
5944 | REGION_BEG, REGION_END delimit the region, so it can be | |
5945 | highlighted. | |
6f134486 | 5946 | |
82641697 GM |
5947 | LIMIT is a position not to scan beyond. That is to limit the time |
5948 | this function can take. | |
5949 | ||
5950 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
5951 | ||
5952 | The face returned is suitable for displaying CHARSET_ASCII if | |
5953 | current_buffer->enable_multibyte_characters is non-nil. Otherwise, | |
5954 | the face is suitable for displaying unibyte text. */ | |
bc0db68d | 5955 | |
cb637678 | 5956 | int |
82641697 GM |
5957 | face_at_buffer_position (w, pos, region_beg, region_end, |
5958 | endptr, limit, mouse) | |
f211082d | 5959 | struct window *w; |
7b7739b1 | 5960 | int pos; |
bc0db68d | 5961 | int region_beg, region_end; |
7b7739b1 | 5962 | int *endptr; |
b349f4fb | 5963 | int limit; |
6f134486 | 5964 | int mouse; |
7b7739b1 | 5965 | { |
82641697 GM |
5966 | struct frame *f = XFRAME (w->frame); |
5967 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 5968 | Lisp_Object prop, position; |
82641697 | 5969 | int i, noverlays; |
7b7739b1 | 5970 | Lisp_Object *overlay_vec; |
f211082d | 5971 | Lisp_Object frame; |
f6b98e0b | 5972 | int endpos; |
82641697 GM |
5973 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
5974 | Lisp_Object limit1, end; | |
5975 | struct face *default_face; | |
5976 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
5977 | |
5978 | /* W must display the current buffer. We could write this function | |
5979 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 5980 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 5981 | |
ac22a6c4 | 5982 | XSETFRAME (frame, f); |
82641697 | 5983 | XSETFASTINT (position, pos); |
7b7739b1 | 5984 | |
f6b98e0b | 5985 | endpos = ZV; |
bc0db68d RS |
5986 | if (pos < region_beg && region_beg < endpos) |
5987 | endpos = region_beg; | |
f6b98e0b | 5988 | |
82641697 GM |
5989 | /* Get the `face' or `mouse_face' text property at POS, and |
5990 | determine the next position at which the property changes. */ | |
6f134486 | 5991 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
5992 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
5993 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
5994 | if (INTEGERP (end)) | |
5995 | endpos = XINT (end); | |
6f134486 | 5996 | |
82641697 | 5997 | /* Look at properties from overlays. */ |
b6d40e46 | 5998 | { |
f6b98e0b | 5999 | int next_overlay; |
9516fe94 RS |
6000 | int len; |
6001 | ||
6002 | /* First try with room for 40 overlays. */ | |
6003 | len = 40; | |
6004 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6005 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6006 | &next_overlay, NULL); |
9516fe94 | 6007 | |
82641697 GM |
6008 | /* If there are more than 40, make enough space for all, and try |
6009 | again. */ | |
9516fe94 RS |
6010 | if (noverlays > len) |
6011 | { | |
6012 | len = noverlays; | |
6013 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6014 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6015 | &next_overlay, NULL); |
9516fe94 | 6016 | } |
b6d40e46 | 6017 | |
f6b98e0b JB |
6018 | if (next_overlay < endpos) |
6019 | endpos = next_overlay; | |
b6d40e46 JB |
6020 | } |
6021 | ||
6022 | *endptr = endpos; | |
7b7739b1 | 6023 | |
82641697 GM |
6024 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6025 | ||
6026 | /* Optimize common cases where we can use the default face. */ | |
6027 | if (noverlays == 0 | |
6028 | && NILP (prop) | |
6029 | && !(pos >= region_beg && pos < region_end) | |
6030 | && (multibyte_p | |
6031 | || !FRAME_WINDOW_P (f) | |
6032 | || FACE_SUITABLE_FOR_CHARSET_P (default_face, -1))) | |
6033 | return DEFAULT_FACE_ID; | |
6034 | ||
6035 | /* Begin with attributes from the default face. */ | |
6036 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6037 | ||
6038 | /* Merge in attributes specified via text properties. */ | |
6039 | if (!NILP (prop)) | |
6040 | merge_face_vector_with_property (f, attrs, prop); | |
6041 | ||
6042 | /* Now merge the overlay data. */ | |
18195655 | 6043 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6044 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6045 | { |
18195655 RS |
6046 | Lisp_Object oend; |
6047 | int oendpos; | |
6048 | ||
6049 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6050 | if (!NILP (prop)) |
6051 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6052 | |
6053 | oend = OVERLAY_END (overlay_vec[i]); | |
6054 | oendpos = OVERLAY_POSITION (oend); | |
6055 | if (oendpos < endpos) | |
6056 | endpos = oendpos; | |
6057 | } | |
6058 | ||
82641697 | 6059 | /* If in the region, merge in the region face. */ |
18195655 RS |
6060 | if (pos >= region_beg && pos < region_end) |
6061 | { | |
82641697 GM |
6062 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6063 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
6064 | ||
18195655 RS |
6065 | if (region_end < endpos) |
6066 | endpos = region_end; | |
18195655 RS |
6067 | } |
6068 | ||
6069 | *endptr = endpos; | |
6070 | ||
82641697 GM |
6071 | /* Look up a realized face with the given face attributes, |
6072 | or realize a new one. Charset is ignored for tty frames. */ | |
6073 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
18195655 RS |
6074 | } |
6075 | ||
60573a90 | 6076 | |
82641697 GM |
6077 | /* Compute the face at character position POS in Lisp string STRING on |
6078 | window W, for charset CHARSET_ASCII. | |
7b7739b1 | 6079 | |
82641697 GM |
6080 | If STRING is an overlay string, it comes from position BUFPOS in |
6081 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6082 | not an overlay string. W must display the current buffer. | |
6083 | REGION_BEG and REGION_END give the start and end positions of the | |
6084 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6085 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6086 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 GM |
6087 | for strings displayed in the mode or top line. |
6088 | ||
6089 | Set *ENDPTR to the next position where to check for faces in | |
6090 | STRING; -1 if the face is constant from POS to the end of the | |
6091 | string. | |
18195655 | 6092 | |
82641697 GM |
6093 | Value is the id of the face to use. The face returned is suitable |
6094 | for displaying CHARSET_ASCII if STRING is multibyte. Otherwise, | |
6095 | the face is suitable for displaying unibyte text. */ | |
fffc2367 | 6096 | |
82641697 GM |
6097 | int |
6098 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6099 | region_end, endptr, base_face_id) | |
6100 | struct window *w; | |
6101 | Lisp_Object string; | |
6102 | int pos, bufpos; | |
6103 | int region_beg, region_end; | |
6104 | int *endptr; | |
6105 | enum face_id base_face_id; | |
660ed669 | 6106 | { |
82641697 GM |
6107 | Lisp_Object prop, position, end, limit; |
6108 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6109 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6110 | struct face *base_face; | |
6111 | int multibyte_p = STRING_MULTIBYTE (string); | |
6112 | ||
6113 | /* Get the value of the face property at the current position within | |
6114 | STRING. Value is nil if there is no face property. */ | |
6115 | XSETFASTINT (position, pos); | |
6116 | prop = Fget_text_property (position, Qface, string); | |
6117 | ||
6118 | /* Get the next position at which to check for faces. Value of end | |
6119 | is nil if face is constant all the way to the end of the string. | |
6120 | Otherwise it is a string position where to check faces next. | |
6121 | Limit is the maximum position up to which to check for property | |
6122 | changes in Fnext_single_property_change. Strings are usually | |
6123 | short, so set the limit to the end of the string. */ | |
6124 | XSETFASTINT (limit, XSTRING (string)->size); | |
6125 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6126 | if (INTEGERP (end)) | |
6127 | *endptr = XFASTINT (end); | |
6128 | else | |
6129 | *endptr = -1; | |
6130 | ||
6131 | base_face = FACE_FROM_ID (f, base_face_id); | |
6132 | xassert (base_face); | |
6133 | ||
6134 | /* Optimize the default case that there is no face property and we | |
6135 | are not in the region. */ | |
6136 | if (NILP (prop) | |
6137 | && (base_face_id != DEFAULT_FACE_ID | |
6138 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6139 | that the region doesn't have to be taken into account. */ | |
6140 | || bufpos <= 0 | |
6141 | || bufpos < region_beg | |
6142 | || bufpos >= region_end) | |
6143 | && (multibyte_p | |
6144 | /* We can't realize faces for different charsets differently | |
6145 | if we don't have fonts, so we can stop here if not working | |
6146 | on a window-system frame. */ | |
6147 | || !FRAME_WINDOW_P (f) | |
6148 | || FACE_SUITABLE_FOR_CHARSET_P (base_face, -1))) | |
6149 | return base_face->id; | |
6150 | ||
6151 | /* Begin with attributes from the base face. */ | |
6152 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6153 | ||
6154 | /* Merge in attributes specified via text properties. */ | |
6155 | if (!NILP (prop)) | |
6156 | merge_face_vector_with_property (f, attrs, prop); | |
6157 | ||
6158 | /* If in the region, merge in the region face. */ | |
6159 | if (bufpos | |
6160 | && bufpos >= region_beg | |
6161 | && bufpos < region_end) | |
a8517066 | 6162 | { |
82641697 GM |
6163 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6164 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
a8517066 | 6165 | } |
660ed669 | 6166 | |
82641697 GM |
6167 | /* Look up a realized face with the given face attributes, |
6168 | or realize a new one. */ | |
6169 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
660ed669 JB |
6170 | } |
6171 | ||
6172 | ||
c115973b | 6173 | \f |
82641697 GM |
6174 | /*********************************************************************** |
6175 | Tests | |
6176 | ***********************************************************************/ | |
c115973b | 6177 | |
82641697 | 6178 | #if GLYPH_DEBUG |
c115973b | 6179 | |
82641697 | 6180 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6181 | |
82641697 GM |
6182 | static void |
6183 | dump_realized_face (face) | |
6184 | struct face *face; | |
6185 | { | |
6186 | fprintf (stderr, "ID: %d\n", face->id); | |
6187 | #ifdef HAVE_X_WINDOWS | |
6188 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6189 | #endif | |
6190 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6191 | face->foreground, | |
6192 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6193 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6194 | face->background, | |
6195 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6196 | fprintf (stderr, "font_name: %s (%s)\n", | |
6197 | face->font_name, | |
6198 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6199 | #ifdef HAVE_X_WINDOWS | |
6200 | fprintf (stderr, "font = %p\n", face->font); | |
6201 | #endif | |
6202 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6203 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6204 | fprintf (stderr, "underline: %d (%s)\n", | |
6205 | face->underline_p, | |
6206 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6207 | fprintf (stderr, "hash: %d\n", face->hash); | |
6208 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6209 | } |
6210 | ||
6211 | ||
82641697 GM |
6212 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6213 | (n) | |
6214 | Lisp_Object n; | |
c115973b | 6215 | { |
82641697 | 6216 | if (NILP (n)) |
c115973b | 6217 | { |
82641697 GM |
6218 | int i; |
6219 | ||
6220 | fprintf (stderr, "font selection order: "); | |
6221 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6222 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6223 | fprintf (stderr, "\n"); | |
6224 | ||
6225 | fprintf (stderr, "alternative fonts: "); | |
6226 | debug_print (Vface_alternative_font_family_alist); | |
6227 | fprintf (stderr, "\n"); | |
6228 | ||
c0617987 | 6229 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6230 | Fdump_face (make_number (i)); |
c115973b JB |
6231 | } |
6232 | else | |
f5e278c7 | 6233 | { |
82641697 GM |
6234 | struct face *face; |
6235 | CHECK_NUMBER (n, 0); | |
c0617987 | 6236 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6237 | if (face == NULL) |
6238 | error ("Not a valid face"); | |
6239 | dump_realized_face (face); | |
f5e278c7 | 6240 | } |
82641697 | 6241 | |
c115973b JB |
6242 | return Qnil; |
6243 | } | |
b5c53576 | 6244 | |
b5c53576 | 6245 | |
82641697 GM |
6246 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6247 | 0, 0, 0, "") | |
6248 | () | |
b5c53576 | 6249 | { |
82641697 GM |
6250 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6251 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6252 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6253 | return Qnil; | |
b5c53576 RS |
6254 | } |
6255 | ||
82641697 GM |
6256 | #endif /* GLYPH_DEBUG != 0 */ |
6257 | ||
b5c53576 | 6258 | |
c115973b | 6259 | \f |
82641697 GM |
6260 | /*********************************************************************** |
6261 | Initialization | |
6262 | ***********************************************************************/ | |
cb637678 | 6263 | |
c115973b | 6264 | void |
f211082d | 6265 | syms_of_xfaces () |
c115973b | 6266 | { |
f211082d JB |
6267 | Qface = intern ("face"); |
6268 | staticpro (&Qface); | |
cd0bb842 RS |
6269 | Qpixmap_spec_p = intern ("pixmap-spec-p"); |
6270 | staticpro (&Qpixmap_spec_p); | |
92610620 GM |
6271 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6272 | staticpro (&Qframe_update_face_colors); | |
6273 | ||
82641697 GM |
6274 | /* Lisp face attribute keywords. */ |
6275 | QCfamily = intern (":family"); | |
6276 | staticpro (&QCfamily); | |
6277 | QCheight = intern (":height"); | |
6278 | staticpro (&QCheight); | |
6279 | QCweight = intern (":weight"); | |
6280 | staticpro (&QCweight); | |
6281 | QCslant = intern (":slant"); | |
6282 | staticpro (&QCslant); | |
6283 | QCunderline = intern (":underline"); | |
6284 | staticpro (&QCunderline); | |
6285 | QCinverse_video = intern (":inverse-video"); | |
6286 | staticpro (&QCinverse_video); | |
6287 | QCreverse_video = intern (":reverse-video"); | |
6288 | staticpro (&QCreverse_video); | |
6289 | QCforeground = intern (":foreground"); | |
6290 | staticpro (&QCforeground); | |
6291 | QCbackground = intern (":background"); | |
6292 | staticpro (&QCbackground); | |
6293 | QCstipple = intern (":stipple");; | |
6294 | staticpro (&QCstipple); | |
6295 | QCwidth = intern (":width"); | |
6296 | staticpro (&QCwidth); | |
6297 | QCfont = intern (":font"); | |
6298 | staticpro (&QCfont); | |
6299 | QCbold = intern (":bold"); | |
6300 | staticpro (&QCbold); | |
6301 | QCitalic = intern (":italic"); | |
6302 | staticpro (&QCitalic); | |
6303 | QCoverline = intern (":overline"); | |
6304 | staticpro (&QCoverline); | |
6305 | QCstrike_through = intern (":strike-through"); | |
6306 | staticpro (&QCstrike_through); | |
6307 | QCbox = intern (":box"); | |
6308 | staticpro (&QCbox); | |
6309 | ||
6310 | /* Symbols used for Lisp face attribute values. */ | |
6311 | QCcolor = intern (":color"); | |
6312 | staticpro (&QCcolor); | |
6313 | QCline_width = intern (":line-width"); | |
6314 | staticpro (&QCline_width); | |
6315 | QCstyle = intern (":style"); | |
6316 | staticpro (&QCstyle); | |
6317 | Qreleased_button = intern ("released-button"); | |
6318 | staticpro (&Qreleased_button); | |
6319 | Qpressed_button = intern ("pressed-button"); | |
6320 | staticpro (&Qpressed_button); | |
6321 | Qnormal = intern ("normal"); | |
6322 | staticpro (&Qnormal); | |
6323 | Qultra_light = intern ("ultra-light"); | |
6324 | staticpro (&Qultra_light); | |
6325 | Qextra_light = intern ("extra-light"); | |
6326 | staticpro (&Qextra_light); | |
6327 | Qlight = intern ("light"); | |
6328 | staticpro (&Qlight); | |
6329 | Qsemi_light = intern ("semi-light"); | |
6330 | staticpro (&Qsemi_light); | |
6331 | Qsemi_bold = intern ("semi-bold"); | |
6332 | staticpro (&Qsemi_bold); | |
6333 | Qbold = intern ("bold"); | |
6334 | staticpro (&Qbold); | |
6335 | Qextra_bold = intern ("extra-bold"); | |
6336 | staticpro (&Qextra_bold); | |
6337 | Qultra_bold = intern ("ultra-bold"); | |
6338 | staticpro (&Qultra_bold); | |
6339 | Qoblique = intern ("oblique"); | |
6340 | staticpro (&Qoblique); | |
6341 | Qitalic = intern ("italic"); | |
6342 | staticpro (&Qitalic); | |
6343 | Qreverse_oblique = intern ("reverse-oblique"); | |
6344 | staticpro (&Qreverse_oblique); | |
6345 | Qreverse_italic = intern ("reverse-italic"); | |
6346 | staticpro (&Qreverse_italic); | |
6347 | Qultra_condensed = intern ("ultra-condensed"); | |
6348 | staticpro (&Qultra_condensed); | |
6349 | Qextra_condensed = intern ("extra-condensed"); | |
6350 | staticpro (&Qextra_condensed); | |
6351 | Qcondensed = intern ("condensed"); | |
6352 | staticpro (&Qcondensed); | |
6353 | Qsemi_condensed = intern ("semi-condensed"); | |
6354 | staticpro (&Qsemi_condensed); | |
6355 | Qsemi_expanded = intern ("semi-expanded"); | |
6356 | staticpro (&Qsemi_expanded); | |
6357 | Qexpanded = intern ("expanded"); | |
6358 | staticpro (&Qexpanded); | |
6359 | Qextra_expanded = intern ("extra-expanded"); | |
6360 | staticpro (&Qextra_expanded); | |
6361 | Qultra_expanded = intern ("ultra-expanded"); | |
6362 | staticpro (&Qultra_expanded); | |
6363 | Qbackground_color = intern ("background-color"); | |
6364 | staticpro (&Qbackground_color); | |
6365 | Qforeground_color = intern ("foreground-color"); | |
6366 | staticpro (&Qforeground_color); | |
6367 | Qunspecified = intern ("unspecified"); | |
6368 | staticpro (&Qunspecified); | |
6369 | ||
6370 | Qx_charset_registry = intern ("x-charset-registry"); | |
6371 | staticpro (&Qx_charset_registry); | |
92610620 GM |
6372 | Qface_alias = intern ("face-alias"); |
6373 | staticpro (&Qface_alias); | |
82641697 GM |
6374 | Qdefault = intern ("default"); |
6375 | staticpro (&Qdefault); | |
92610620 GM |
6376 | Qmode_line = intern ("mode-line"); |
6377 | staticpro (&Qmode_line); | |
9ea173e8 GM |
6378 | Qtool_bar = intern ("tool-bar"); |
6379 | staticpro (&Qtool_bar); | |
82641697 GM |
6380 | Qregion = intern ("region"); |
6381 | staticpro (&Qregion); | |
8bd201d6 GM |
6382 | Qfringe = intern ("fringe"); |
6383 | staticpro (&Qfringe); | |
045dee35 GM |
6384 | Qheader_line = intern ("header-line"); |
6385 | staticpro (&Qheader_line); | |
8bd201d6 GM |
6386 | Qscroll_bar = intern ("scroll-bar"); |
6387 | staticpro (&Qscroll_bar); | |
6388 | Qcursor = intern ("cursor"); | |
6389 | staticpro (&Qcursor); | |
6390 | Qborder = intern ("border"); | |
6391 | staticpro (&Qborder); | |
6392 | Qmouse = intern ("mouse"); | |
6393 | staticpro (&Qmouse); | |
82641697 GM |
6394 | |
6395 | defsubr (&Sinternal_make_lisp_face); | |
6396 | defsubr (&Sinternal_lisp_face_p); | |
6397 | defsubr (&Sinternal_set_lisp_face_attribute); | |
6398 | #ifdef HAVE_X_WINDOWS | |
6399 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); | |
6400 | defsubr (&Sface_color_gray_p); | |
6401 | defsubr (&Sface_color_supported_p); | |
6402 | #endif | |
6403 | defsubr (&Sinternal_get_lisp_face_attribute); | |
6404 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6405 | defsubr (&Sinternal_lisp_face_equal_p); | |
6406 | defsubr (&Sinternal_lisp_face_empty_p); | |
6407 | defsubr (&Sinternal_copy_lisp_face); | |
6408 | defsubr (&Sinternal_merge_in_global_face); | |
6409 | defsubr (&Sface_font); | |
6410 | defsubr (&Sframe_face_alist); | |
6411 | defsubr (&Sinternal_set_font_selection_order); | |
6412 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
6413 | #if GLYPH_DEBUG | |
6414 | defsubr (&Sdump_face); | |
6415 | defsubr (&Sshow_face_resources); | |
6416 | #endif /* GLYPH_DEBUG */ | |
6417 | defsubr (&Sclear_face_cache); | |
6418 | ||
057df17c GM |
6419 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
6420 | "*Limit for font matching.\n\ | |
6421 | If an integer > 0, font matching functions won't load more than\n\ | |
6422 | that number of fonts when searching for a matching font."); | |
6423 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
6424 | ||
82641697 GM |
6425 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
6426 | "List of global face definitions (for internal use only.)"); | |
6427 | Vface_new_frame_defaults = Qnil; | |
6428 | ||
6429 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, | |
6430 | "*Default stipple pattern used on monochrome displays.\n\ | |
6431 | This stipple pattern is used on monochrome displays\n\ | |
6432 | instead of shades of gray for a face background color.\n\ | |
6433 | See `set-face-stipple' for possible values for this variable."); | |
6434 | Vface_default_stipple = build_string ("gray3"); | |
6435 | ||
6436 | DEFVAR_LISP ("face-default-registry", &Vface_default_registry, | |
6437 | "Default registry and encoding to use.\n\ | |
6438 | This registry and encoding is used for unibyte text. It is set up\n\ | |
6439 | from the specified frame font when Emacs starts. (For internal use only.)"); | |
6440 | Vface_default_registry = Qnil; | |
6441 | ||
6442 | DEFVAR_LISP ("face-alternative-font-family-alist", | |
6443 | &Vface_alternative_font_family_alist, ""); | |
6444 | Vface_alternative_font_family_alist = Qnil; | |
6445 | ||
6446 | #if SCALABLE_FONTS | |
6447 | ||
6448 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, | |
6449 | "Allowed scalable fonts.\n\ | |
6450 | A value of nil means don't allow any scalable fonts.\n\ | |
6451 | A value of t means allow any scalable font.\n\ | |
6452 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
6453 | scaled if its name matches a regular expression in the list."); | |
6454 | Vscalable_fonts_allowed = Qnil; | |
6455 | ||
6456 | #endif /* SCALABLE_FONTS */ | |
b5c53576 | 6457 | |
87485d6f | 6458 | #ifdef HAVE_X_WINDOWS |
cd0bb842 | 6459 | defsubr (&Spixmap_spec_p); |
82641697 GM |
6460 | defsubr (&Sx_list_fonts); |
6461 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 6462 | defsubr (&Sx_family_fonts); |
82641697 GM |
6463 | defsubr (&Sx_font_family_list); |
6464 | #endif /* HAVE_X_WINDOWS */ | |
b5c53576 | 6465 | |
82641697 GM |
6466 | /* TTY face support. */ |
6467 | defsubr (&Sface_register_tty_color); | |
6468 | defsubr (&Sface_clear_tty_colors); | |
6469 | defsubr (&Stty_defined_colors); | |
6470 | Vface_tty_color_alist = Qnil; | |
6471 | staticpro (&Vface_tty_color_alist); | |
c115973b | 6472 | } |