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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 | |
68c45bf0 | 180 | #include <config.h> |
c115973b JB |
181 | #include <sys/types.h> |
182 | #include <sys/stat.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" |
c7ae3284 GM |
190 | #ifdef USE_MOTIF |
191 | #include <Xm/Xm.h> | |
192 | #include <Xm/XmStrDefs.h> | |
193 | #endif /* USE_MOTIF */ | |
87485d6f | 194 | #endif |
82641697 | 195 | |
87485d6f MW |
196 | #ifdef MSDOS |
197 | #include "dosfns.h" | |
198 | #endif | |
82641697 | 199 | |
c115973b | 200 | #include "buffer.h" |
f211082d | 201 | #include "dispextern.h" |
357f32fc | 202 | #include "blockinput.h" |
b6d40e46 | 203 | #include "window.h" |
bde7c500 | 204 | #include "intervals.h" |
c115973b | 205 | |
87485d6f | 206 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
207 | |
208 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
209 | time.h. On some such systems, Xos.h tries to redefine struct |
210 | timeval and struct timezone if USG is #defined while it is | |
211 | #included. */ | |
657070ac | 212 | |
82641697 | 213 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 214 | #include <time.h> |
657070ac JB |
215 | #undef USG |
216 | #include <X11/Xos.h> | |
217 | #define USG | |
e11d186d | 218 | #define __TIMEVAL__ |
82641697 GM |
219 | #else /* not XOS_NEEDS_TIME_H */ |
220 | #include <X11/Xos.h> | |
221 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 222 | |
82641697 | 223 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 224 | |
82641697 | 225 | #include <stdio.h> |
82641697 GM |
226 | #include <ctype.h> |
227 | #include "keyboard.h" | |
c115973b | 228 | |
82641697 GM |
229 | #ifndef max |
230 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
231 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
232 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 233 | #endif |
cb637678 | 234 | |
82641697 GM |
235 | /* Non-zero if face attribute ATTR is unspecified. */ |
236 | ||
237 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
238 | ||
239 | /* Value is the number of elements of VECTOR. */ | |
240 | ||
241 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
242 | ||
243 | /* Make a copy of string S on the stack using alloca. Value is a pointer | |
244 | to the copy. */ | |
245 | ||
246 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 247 | |
82641697 GM |
248 | /* Make a copy of the contents of Lisp string S on the stack using |
249 | alloca. Value is a pointer to the copy. */ | |
250 | ||
251 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
252 | ||
253 | /* Size of hash table of realized faces in face caches (should be a | |
254 | prime number). */ | |
255 | ||
256 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
257 | ||
2d764c78 EZ |
258 | /* A definition of XColor for non-X frames. */ |
259 | #ifndef HAVE_X_WINDOWS | |
260 | typedef struct { | |
261 | unsigned long pixel; | |
262 | unsigned short red, green, blue; | |
263 | char flags; | |
264 | char pad; | |
265 | } XColor; | |
266 | #endif | |
267 | ||
82641697 GM |
268 | /* Keyword symbols used for face attribute names. */ |
269 | ||
270 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
271 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
272 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
273 | Lisp_Object QCreverse_video; | |
274 | Lisp_Object QCoverline, QCstrike_through, QCbox; | |
275 | ||
276 | /* Symbols used for attribute values. */ | |
277 | ||
278 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
279 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
280 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
281 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
282 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
283 | Lisp_Object Qultra_expanded; | |
284 | Lisp_Object Qreleased_button, Qpressed_button; | |
285 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
286 | Lisp_Object Qunspecified; | |
287 | ||
288 | /* The symbol `x-charset-registry'. This property of charsets defines | |
289 | the X registry and encoding that fonts should have that are used to | |
290 | display characters of that charset. */ | |
291 | ||
292 | Lisp_Object Qx_charset_registry; | |
293 | ||
92610620 GM |
294 | /* The name of the function to call when the background of the frame |
295 | has changed, frame_update_face_colors. */ | |
296 | ||
297 | Lisp_Object Qframe_update_face_colors; | |
298 | ||
82641697 GM |
299 | /* Names of basic faces. */ |
300 | ||
fb4927c4 | 301 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 302 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 303 | extern Lisp_Object Qmode_line; |
8bd201d6 | 304 | |
92610620 GM |
305 | /* The symbol `face-alias'. A symbols having that property is an |
306 | alias for another face. Value of the property is the name of | |
307 | the aliased face. */ | |
308 | ||
309 | Lisp_Object Qface_alias; | |
310 | ||
8bd201d6 GM |
311 | /* Names of frame parameters related to faces. */ |
312 | ||
313 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
314 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
315 | |
316 | /* Default stipple pattern used on monochrome displays. This stipple | |
317 | pattern is used on monochrome displays instead of shades of gray | |
318 | for a face background color. See `set-face-stipple' for possible | |
319 | values for this variable. */ | |
320 | ||
321 | Lisp_Object Vface_default_stipple; | |
322 | ||
323 | /* Default registry and encoding to use for charsets whose charset | |
324 | symbols don't specify one. */ | |
325 | ||
326 | Lisp_Object Vface_default_registry; | |
327 | ||
328 | /* Alist of alternative font families. Each element is of the form | |
329 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
330 | try FAMILY1, then FAMILY2, ... */ | |
331 | ||
332 | Lisp_Object Vface_alternative_font_family_alist; | |
333 | ||
334 | /* Allowed scalable fonts. A value of nil means don't allow any | |
335 | scalable fonts. A value of t means allow the use of any scalable | |
336 | font. Otherwise, value must be a list of regular expressions. A | |
337 | font may be scaled if its name matches a regular expression in the | |
338 | list. */ | |
339 | ||
340 | #if SCALABLE_FONTS | |
341 | Lisp_Object Vscalable_fonts_allowed; | |
342 | #endif | |
343 | ||
057df17c GM |
344 | /* Maximum number of fonts to consider in font_list. If not an |
345 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
346 | ||
347 | Lisp_Object Vfont_list_limit; | |
348 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
349 | ||
82641697 GM |
350 | /* The symbols `foreground-color' and `background-color' which can be |
351 | used as part of a `face' property. This is for compatibility with | |
352 | Emacs 20.2. */ | |
353 | ||
354 | Lisp_Object Qforeground_color, Qbackground_color; | |
355 | ||
356 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 357 | |
ff83dbb1 | 358 | Lisp_Object Qface; |
82641697 GM |
359 | extern Lisp_Object Qmouse_face; |
360 | ||
361 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
362 | ||
fef04523 | 363 | Lisp_Object Qbitmap_spec_p; |
f211082d | 364 | |
82641697 GM |
365 | /* Alist of global face definitions. Each element is of the form |
366 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
367 | is a Lisp vector of face attributes. These faces are used | |
368 | to initialize faces for new frames. */ | |
cb637678 | 369 | |
82641697 | 370 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 371 | |
82641697 | 372 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 373 | |
82641697 | 374 | static int next_lface_id; |
c115973b | 375 | |
82641697 | 376 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 377 | |
82641697 GM |
378 | static Lisp_Object *lface_id_to_name; |
379 | static int lface_id_to_name_size; | |
c115973b | 380 | |
2d764c78 EZ |
381 | /* tty color-related functions (defined on lisp/term/tty-colors.el). */ |
382 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; | |
82641697 GM |
383 | |
384 | /* Counter for calls to clear_face_cache. If this counter reaches | |
385 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
386 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
387 | ||
388 | static int clear_font_table_count; | |
389 | #define CLEAR_FONT_TABLE_COUNT 100 | |
390 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
391 | ||
392 | /* Non-zero means face attributes have been changed since the last | |
393 | redisplay. Used in redisplay_internal. */ | |
394 | ||
395 | int face_change_count; | |
396 | ||
397 | /* The total number of colors currently allocated. */ | |
398 | ||
399 | #if GLYPH_DEBUG | |
400 | static int ncolors_allocated; | |
401 | static int npixmaps_allocated; | |
402 | static int ngcs; | |
403 | #endif | |
404 | ||
405 | ||
406 | \f | |
407 | /* Function prototypes. */ | |
408 | ||
409 | struct font_name; | |
410 | struct table_entry; | |
411 | ||
c7ae3284 | 412 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
82641697 GM |
413 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); |
414 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
415 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
416 | int)); | |
417 | static int first_font_matching P_ ((struct frame *f, char *, | |
418 | struct font_name *)); | |
419 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
420 | struct font_name *, int, int, int)); | |
421 | static int font_scalable_p P_ ((struct font_name *)); | |
422 | static Lisp_Object deduce_unibyte_registry P_ ((struct frame *, char *)); | |
423 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); | |
424 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
425 | static char *xstrdup P_ ((char *)); | |
426 | static unsigned char *xstrlwr P_ ((unsigned char *)); | |
427 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 GM |
428 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
429 | static void load_face_font_or_fontset P_ ((struct frame *, struct face *, char *, int)); | |
82641697 GM |
430 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
431 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
432 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
433 | static char *build_font_name P_ ((struct font_name *)); | |
434 | static void free_font_names P_ ((struct font_name *, int)); | |
435 | static int sorted_font_list P_ ((struct frame *, char *, | |
436 | int (*cmpfn) P_ ((const void *, const void *)), | |
437 | struct font_name **)); | |
438 | static int font_list P_ ((struct frame *, char *, char *, char *, struct font_name **)); | |
439 | static int try_font_list P_ ((struct frame *, Lisp_Object *, char *, char *, char *, | |
440 | struct font_name **)); | |
441 | static int cmp_font_names P_ ((const void *, const void *)); | |
442 | static struct face *realize_face P_ ((struct face_cache *, | |
443 | Lisp_Object *, int)); | |
444 | static struct face *realize_x_face P_ ((struct face_cache *, | |
445 | Lisp_Object *, int)); | |
446 | static struct face *realize_tty_face P_ ((struct face_cache *, | |
447 | Lisp_Object *, int)); | |
448 | static int realize_basic_faces P_ ((struct frame *)); | |
449 | static int realize_default_face P_ ((struct frame *)); | |
450 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
451 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
452 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
453 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
454 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
455 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
456 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
457 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
458 | static void clear_face_gcs P_ ((struct face_cache *)); | |
459 | static void free_face_cache P_ ((struct face_cache *)); | |
460 | static int face_numeric_weight P_ ((Lisp_Object)); | |
461 | static int face_numeric_slant P_ ((Lisp_Object)); | |
462 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
463 | static int face_fontset P_ ((struct frame *, Lisp_Object *)); | |
464 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, | |
465 | Lisp_Object)); | |
466 | static char *choose_face_fontset_font P_ ((struct frame *, Lisp_Object *, | |
467 | int, int)); | |
468 | static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); | |
469 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, | |
470 | Lisp_Object)); | |
471 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, char *, | |
3221576b | 472 | int, int)); |
82641697 GM |
473 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
474 | static struct face *make_realized_face P_ ((Lisp_Object *, int, Lisp_Object)); | |
475 | static void free_realized_faces P_ ((struct face_cache *)); | |
476 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
477 | struct font_name *, int)); | |
478 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
479 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
480 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
481 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
482 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
483 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
484 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
485 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
486 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
487 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
488 | int, int)); | |
489 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
490 | struct font_name *, int, int)); | |
491 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, | |
492 | struct font_name *, int)); | |
493 | ||
494 | #ifdef HAVE_X_WINDOWS | |
495 | ||
496 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
497 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
498 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
499 | int (*cmpfn) P_ ((const void *, const void *)))); | |
500 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
501 | static void x_free_gc P_ ((struct frame *, GC)); | |
502 | static void clear_font_table P_ ((struct frame *)); | |
503 | ||
504 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 505 | |
cb637678 | 506 | \f |
82641697 GM |
507 | /*********************************************************************** |
508 | Utilities | |
509 | ***********************************************************************/ | |
c115973b | 510 | |
87485d6f | 511 | #ifdef HAVE_X_WINDOWS |
cb637678 | 512 | |
82641697 GM |
513 | /* Create and return a GC for use on frame F. GC values and mask |
514 | are given by XGCV and MASK. */ | |
515 | ||
516 | static INLINE GC | |
517 | x_create_gc (f, mask, xgcv) | |
cb637678 | 518 | struct frame *f; |
82641697 GM |
519 | unsigned long mask; |
520 | XGCValues *xgcv; | |
c115973b JB |
521 | { |
522 | GC gc; | |
82641697 GM |
523 | BLOCK_INPUT; |
524 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
525 | UNBLOCK_INPUT; | |
526 | IF_DEBUG (++ngcs); | |
527 | return gc; | |
528 | } | |
c115973b | 529 | |
42120bc7 | 530 | |
82641697 GM |
531 | /* Free GC which was used on frame F. */ |
532 | ||
533 | static INLINE void | |
534 | x_free_gc (f, gc) | |
535 | struct frame *f; | |
536 | GC gc; | |
537 | { | |
660ed669 | 538 | BLOCK_INPUT; |
82641697 GM |
539 | xassert (--ngcs >= 0); |
540 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
541 | UNBLOCK_INPUT; | |
542 | } | |
660ed669 | 543 | |
82641697 | 544 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 545 | |
660ed669 | 546 | |
82641697 GM |
547 | /* Like strdup, but uses xmalloc. */ |
548 | ||
549 | static char * | |
550 | xstrdup (s) | |
551 | char *s; | |
552 | { | |
553 | int len = strlen (s) + 1; | |
554 | char *p = (char *) xmalloc (len); | |
555 | bcopy (s, p, len); | |
556 | return p; | |
557 | } | |
660ed669 | 558 | |
660ed669 | 559 | |
82641697 GM |
560 | /* Like stricmp. Used to compare parts of font names which are in |
561 | ISO8859-1. */ | |
562 | ||
563 | int | |
564 | xstricmp (s1, s2) | |
565 | unsigned char *s1, *s2; | |
566 | { | |
567 | while (*s1 && *s2) | |
95887807 | 568 | { |
82641697 GM |
569 | unsigned char c1 = tolower (*s1); |
570 | unsigned char c2 = tolower (*s2); | |
571 | if (c1 != c2) | |
572 | return c1 < c2 ? -1 : 1; | |
573 | ++s1, ++s2; | |
95887807 | 574 | } |
cd0bb842 | 575 | |
82641697 GM |
576 | if (*s1 == 0) |
577 | return *s2 == 0 ? 0 : -1; | |
578 | return 1; | |
579 | } | |
660ed669 | 580 | |
660ed669 | 581 | |
82641697 | 582 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 583 | |
82641697 GM |
584 | static unsigned char * |
585 | xstrlwr (s) | |
586 | unsigned char *s; | |
587 | { | |
588 | unsigned char *p = s; | |
589 | ||
590 | for (p = s; *p; ++p) | |
591 | *p = tolower (*p); | |
592 | ||
593 | return s; | |
c115973b | 594 | } |
cb637678 | 595 | |
42120bc7 | 596 | |
82641697 GM |
597 | /* Signal `error' with message S, and additional argument ARG. */ |
598 | ||
599 | static void | |
600 | signal_error (s, arg) | |
601 | char *s; | |
602 | Lisp_Object arg; | |
42120bc7 | 603 | { |
82641697 GM |
604 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
605 | } | |
42120bc7 | 606 | |
82641697 | 607 | |
c0617987 GM |
608 | /* If FRAME is nil, return a pointer to the selected frame. |
609 | Otherwise, check that FRAME is a live frame, and return a pointer | |
610 | to it. NPARAM is the parameter number of FRAME, for | |
611 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
612 | Lisp function definitions. */ | |
82641697 GM |
613 | |
614 | static INLINE struct frame * | |
615 | frame_or_selected_frame (frame, nparam) | |
616 | Lisp_Object frame; | |
617 | int nparam; | |
618 | { | |
82641697 | 619 | if (NILP (frame)) |
c0617987 GM |
620 | frame = selected_frame; |
621 | ||
622 | CHECK_LIVE_FRAME (frame, nparam); | |
623 | return XFRAME (frame); | |
42120bc7 | 624 | } |
82641697 | 625 | |
42120bc7 | 626 | \f |
82641697 GM |
627 | /*********************************************************************** |
628 | Frames and faces | |
629 | ***********************************************************************/ | |
cd0bb842 | 630 | |
82641697 | 631 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 632 | |
82641697 GM |
633 | void |
634 | init_frame_faces (f) | |
cb637678 | 635 | struct frame *f; |
cb637678 | 636 | { |
82641697 GM |
637 | /* Make a face cache, if F doesn't have one. */ |
638 | if (FRAME_FACE_CACHE (f) == NULL) | |
639 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
640 | ||
641 | #ifdef HAVE_X_WINDOWS | |
642 | /* Make the image cache. */ | |
643 | if (FRAME_X_P (f)) | |
644 | { | |
645 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
646 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
647 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
648 | } | |
649 | #endif /* HAVE_X_WINDOWS */ | |
cb637678 | 650 | |
82641697 GM |
651 | /* Realize basic faces. Must have enough information in frame |
652 | parameters to realize basic faces at this point. */ | |
653 | #ifdef HAVE_X_WINDOWS | |
654 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
655 | #endif | |
656 | if (!realize_basic_faces (f)) | |
657 | abort (); | |
658 | } | |
cb637678 | 659 | |
cb637678 | 660 | |
82641697 | 661 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 662 | |
82641697 GM |
663 | void |
664 | free_frame_faces (f) | |
cb637678 | 665 | struct frame *f; |
cb637678 | 666 | { |
82641697 GM |
667 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
668 | ||
669 | if (face_cache) | |
670 | { | |
671 | free_face_cache (face_cache); | |
672 | FRAME_FACE_CACHE (f) = NULL; | |
673 | } | |
660ed669 | 674 | |
82641697 GM |
675 | #ifdef HAVE_X_WINDOWS |
676 | if (FRAME_X_P (f)) | |
195f798e | 677 | { |
82641697 GM |
678 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
679 | if (image_cache) | |
195f798e | 680 | { |
82641697 GM |
681 | --image_cache->refcount; |
682 | if (image_cache->refcount == 0) | |
683 | free_image_cache (f); | |
195f798e RS |
684 | } |
685 | } | |
82641697 | 686 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
687 | } |
688 | ||
82641697 | 689 | |
8bd201d6 GM |
690 | /* Clear face caches, and recompute basic faces for frame F. Call |
691 | this after changing frame parameters on which those faces depend, | |
692 | or when realized faces have been freed due to changing attributes | |
693 | of named faces. */ | |
82641697 GM |
694 | |
695 | void | |
696 | recompute_basic_faces (f) | |
cb637678 | 697 | struct frame *f; |
cb637678 | 698 | { |
82641697 GM |
699 | if (FRAME_FACE_CACHE (f)) |
700 | { | |
8bd201d6 | 701 | clear_face_cache (0); |
18df9369 GM |
702 | if (!realize_basic_faces (f)) |
703 | abort (); | |
82641697 GM |
704 | } |
705 | } | |
cb637678 | 706 | |
cb637678 | 707 | |
82641697 GM |
708 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
709 | try to free unused fonts, too. */ | |
cb637678 | 710 | |
adfea139 | 711 | void |
82641697 GM |
712 | clear_face_cache (clear_fonts_p) |
713 | int clear_fonts_p; | |
cb637678 | 714 | { |
82641697 GM |
715 | #ifdef HAVE_X_WINDOWS |
716 | Lisp_Object tail, frame; | |
717 | struct frame *f; | |
828e66d1 | 718 | |
82641697 GM |
719 | if (clear_fonts_p |
720 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 721 | { |
82641697 GM |
722 | /* From time to time see if we can unload some fonts. This also |
723 | frees all realized faces on all frames. Fonts needed by | |
724 | faces will be loaded again when faces are realized again. */ | |
725 | clear_font_table_count = 0; | |
195f798e | 726 | |
82641697 | 727 | FOR_EACH_FRAME (tail, frame) |
195f798e | 728 | { |
82641697 GM |
729 | f = XFRAME (frame); |
730 | if (FRAME_X_P (f) | |
731 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
195f798e | 732 | { |
82641697 GM |
733 | free_all_realized_faces (frame); |
734 | clear_font_table (f); | |
735 | } | |
736 | } | |
737 | } | |
738 | else | |
739 | { | |
740 | /* Clear GCs of realized faces. */ | |
741 | FOR_EACH_FRAME (tail, frame) | |
742 | { | |
743 | f = XFRAME (frame); | |
744 | if (FRAME_X_P (f)) | |
745 | { | |
746 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
747 | clear_image_cache (f, 0); | |
195f798e RS |
748 | } |
749 | } | |
828e66d1 | 750 | } |
82641697 | 751 | #endif /* HAVE_X_WINDOWS */ |
cd0bb842 RS |
752 | } |
753 | ||
82641697 GM |
754 | |
755 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
756 | "Clear face caches on all frames.\n\ | |
757 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
758 | (thorougly) | |
759 | Lisp_Object thorougly; | |
cd0bb842 | 760 | { |
82641697 GM |
761 | clear_face_cache (!NILP (thorougly)); |
762 | return Qnil; | |
763 | } | |
764 | ||
765 | ||
766 | ||
767 | #ifdef HAVE_X_WINDOWS | |
768 | ||
769 | ||
770 | /* Remove those fonts from the font table of frame F that are not used | |
771 | by fontsets. Called from clear_face_cache from time to time. */ | |
772 | ||
773 | static void | |
774 | clear_font_table (f) | |
775 | struct frame *f; | |
776 | { | |
777 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
778 | char *used; | |
779 | Lisp_Object rest, frame; | |
780 | int i; | |
781 | ||
782 | xassert (FRAME_X_P (f)); | |
783 | ||
784 | used = (char *) alloca (dpyinfo->n_fonts * sizeof *used); | |
785 | bzero (used, dpyinfo->n_fonts * sizeof *used); | |
786 | ||
787 | /* For all frames with the same x_display_info as F, record | |
788 | in `used' those fonts that are in use by fontsets. */ | |
789 | FOR_EACH_FRAME (rest, frame) | |
790 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
791 | { | |
792 | struct frame *f = XFRAME (frame); | |
793 | struct fontset_data *fontset_data = FRAME_FONTSET_DATA (f); | |
794 | ||
795 | for (i = 0; i < fontset_data->n_fontsets; ++i) | |
796 | { | |
797 | struct fontset_info *info = fontset_data->fontset_table[i]; | |
798 | int j; | |
799 | ||
800 | for (j = 0; j <= MAX_CHARSET; ++j) | |
801 | { | |
802 | int idx = info->font_indexes[j]; | |
803 | if (idx >= 0) | |
804 | used[idx] = 1; | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
809 | /* Free those fonts that are not used by fontsets. */ | |
810 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
811 | if (used[i] == 0 && dpyinfo->font_table[i].name) | |
812 | { | |
813 | struct font_info *font_info = dpyinfo->font_table + i; | |
814 | ||
815 | /* Free names. In xfns.c there is a comment that full_name | |
816 | should never be freed because it is always shared with | |
817 | something else. I don't think this is true anymore---see | |
818 | x_load_font. It's either equal to font_info->name or | |
819 | allocated via xmalloc, and there seems to be no place in | |
820 | the source files where full_name is transferred to another | |
821 | data structure. */ | |
822 | if (font_info->full_name != font_info->name) | |
823 | xfree (font_info->full_name); | |
824 | xfree (font_info->name); | |
825 | ||
826 | /* Free the font. */ | |
827 | BLOCK_INPUT; | |
828 | XFreeFont (dpyinfo->display, font_info->font); | |
829 | UNBLOCK_INPUT; | |
830 | ||
831 | /* Mark font table slot free. */ | |
832 | font_info->font = NULL; | |
833 | font_info->name = font_info->full_name = NULL; | |
834 | } | |
835 | } | |
836 | ||
837 | ||
838 | #endif /* HAVE_X_WINDOWS */ | |
839 | ||
840 | ||
841 | \f | |
842 | /*********************************************************************** | |
843 | X Pixmaps | |
844 | ***********************************************************************/ | |
845 | ||
846 | #ifdef HAVE_X_WINDOWS | |
847 | ||
fef04523 GM |
848 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
849 | "Value is non-nil if OBJECT is a valid bitmap specification.\n\ | |
850 | A bitmap specification is either a string, a file name, or a list\n\ | |
851 | (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ | |
c7ae3284 GM |
852 | HEIGHT is its height, and DATA is a string containing the bits of\n\ |
853 | the pixmap. Bits are stored row by row, each row occupies\n\ | |
854 | (WIDTH + 7)/8 bytes.") | |
82641697 GM |
855 | (object) |
856 | Lisp_Object object; | |
857 | { | |
c7ae3284 GM |
858 | int pixmap_p = 0; |
859 | ||
860 | if (STRINGP (object)) | |
861 | /* If OBJECT is a string, it's a file name. */ | |
862 | pixmap_p = 1; | |
863 | else if (CONSP (object)) | |
864 | { | |
865 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
866 | HEIGHT must be integers > 0, and DATA must be string large | |
867 | enough to hold a bitmap of the specified size. */ | |
868 | Lisp_Object width, height, data; | |
869 | ||
870 | height = width = data = Qnil; | |
871 | ||
872 | if (CONSP (object)) | |
873 | { | |
874 | width = XCAR (object); | |
875 | object = XCDR (object); | |
876 | if (CONSP (object)) | |
877 | { | |
878 | height = XCAR (object); | |
879 | object = XCDR (object); | |
880 | if (CONSP (object)) | |
881 | data = XCAR (object); | |
882 | } | |
883 | } | |
cd0bb842 | 884 | |
c7ae3284 GM |
885 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
886 | { | |
887 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
888 | / BITS_PER_CHAR); | |
889 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * height) | |
890 | pixmap_p = 1; | |
891 | } | |
892 | } | |
893 | ||
894 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
895 | } |
896 | ||
cd0bb842 | 897 | |
82641697 GM |
898 | /* Load a bitmap according to NAME (which is either a file name or a |
899 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
900 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
901 | bitmap cannot be loaded, display a message saying so, and return | |
902 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
903 | if these pointers are not null. */ | |
cd0bb842 | 904 | |
82641697 | 905 | static int |
cd0bb842 | 906 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 907 | FRAME_PTR f; |
cd0bb842 RS |
908 | Lisp_Object name; |
909 | unsigned int *w_ptr, *h_ptr; | |
910 | { | |
911 | int bitmap_id; | |
912 | Lisp_Object tem; | |
913 | ||
914 | if (NILP (name)) | |
82641697 | 915 | return 0; |
cd0bb842 | 916 | |
fef04523 | 917 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 918 | if (NILP (tem)) |
fef04523 | 919 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
920 | |
921 | BLOCK_INPUT; | |
cd0bb842 RS |
922 | if (CONSP (name)) |
923 | { | |
924 | /* Decode a bitmap spec into a bitmap. */ | |
925 | ||
926 | int h, w; | |
927 | Lisp_Object bits; | |
928 | ||
929 | w = XINT (Fcar (name)); | |
930 | h = XINT (Fcar (Fcdr (name))); | |
931 | bits = Fcar (Fcdr (Fcdr (name))); | |
932 | ||
933 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
934 | w, h); | |
935 | } | |
936 | else | |
937 | { | |
938 | /* It must be a string -- a file name. */ | |
939 | bitmap_id = x_create_bitmap_from_file (f, name); | |
940 | } | |
941 | UNBLOCK_INPUT; | |
942 | ||
7812a96f | 943 | if (bitmap_id < 0) |
82641697 | 944 | { |
1b8f7fbc | 945 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 946 | bitmap_id = 0; |
cd0bb842 | 947 | |
82641697 GM |
948 | if (w_ptr) |
949 | *w_ptr = 0; | |
950 | if (h_ptr) | |
951 | *h_ptr = 0; | |
952 | } | |
953 | else | |
954 | { | |
955 | #if GLYPH_DEBUG | |
956 | ++npixmaps_allocated; | |
957 | #endif | |
958 | if (w_ptr) | |
959 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
960 | ||
961 | if (h_ptr) | |
962 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
963 | } | |
cd0bb842 RS |
964 | |
965 | return bitmap_id; | |
cb637678 | 966 | } |
87485d6f | 967 | |
82641697 GM |
968 | #endif /* HAVE_X_WINDOWS */ |
969 | ||
87485d6f | 970 | |
82641697 GM |
971 | \f |
972 | /*********************************************************************** | |
973 | Minimum font bounds | |
974 | ***********************************************************************/ | |
975 | ||
976 | #ifdef HAVE_X_WINDOWS | |
977 | ||
d6fc0a22 GM |
978 | /* Update the line_height of frame F. Return non-zero if line height |
979 | changes. */ | |
87485d6f | 980 | |
82641697 GM |
981 | int |
982 | frame_update_line_height (f) | |
87485d6f | 983 | struct frame *f; |
87485d6f | 984 | { |
d6fc0a22 GM |
985 | int fontset, line_height, changed_p; |
986 | ||
987 | fontset = f->output_data.x->fontset; | |
988 | if (fontset > 0) | |
989 | line_height = FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height; | |
990 | else | |
991 | line_height = FONT_HEIGHT (f->output_data.x->font); | |
992 | ||
993 | changed_p = line_height != f->output_data.x->line_height; | |
994 | f->output_data.x->line_height = line_height; | |
82641697 | 995 | return changed_p; |
87485d6f MW |
996 | } |
997 | ||
82641697 GM |
998 | #endif /* HAVE_X_WINDOWS */ |
999 | ||
1000 | \f | |
1001 | /*********************************************************************** | |
1002 | Fonts | |
1003 | ***********************************************************************/ | |
1004 | ||
1005 | #ifdef HAVE_X_WINDOWS | |
1006 | ||
1007 | /* Load font or fontset of face FACE which is used on frame F. | |
1008 | FONTSET is the fontset FACE should use or -1, if FACE doesn't use a | |
1009 | fontset. FONT_NAME is the name of the font to load, if no fontset | |
1010 | is used. It is null if no suitable font name could be determined | |
1011 | for the face. */ | |
1012 | ||
1013 | static void | |
1014 | load_face_font_or_fontset (f, face, font_name, fontset) | |
1015 | struct frame *f; | |
1016 | struct face *face; | |
1017 | char *font_name; | |
1018 | int fontset; | |
87485d6f | 1019 | { |
82641697 GM |
1020 | struct font_info *font_info = NULL; |
1021 | ||
1022 | face->font_info_id = -1; | |
1023 | face->fontset = fontset; | |
1024 | face->font = NULL; | |
1025 | ||
1026 | BLOCK_INPUT; | |
1027 | if (fontset >= 0) | |
1028 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
1029 | NULL, fontset); | |
1030 | else if (font_name) | |
1031 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), face->charset, | |
1032 | font_name, -1); | |
1033 | UNBLOCK_INPUT; | |
1034 | ||
1035 | if (font_info) | |
1036 | { | |
1037 | char *s; | |
1038 | int i; | |
1039 | ||
1040 | face->font_info_id = FONT_INFO_ID (f, font_info); | |
1041 | face->font = font_info->font; | |
1042 | face->font_name = font_info->full_name; | |
1043 | ||
1044 | /* Make the registry part of the font name readily accessible. | |
1045 | The registry is used to find suitable faces for unibyte text. */ | |
1046 | s = font_info->full_name + strlen (font_info->full_name); | |
1047 | i = 0; | |
1048 | while (i < 2 && --s >= font_info->full_name) | |
1049 | if (*s == '-') | |
1050 | ++i; | |
1051 | ||
1052 | if (!STRINGP (face->registry) | |
1053 | || xstricmp (XSTRING (face->registry)->data, s + 1) != 0) | |
1054 | { | |
1055 | if (STRINGP (Vface_default_registry) | |
1056 | && !xstricmp (XSTRING (Vface_default_registry)->data, s + 1)) | |
1057 | face->registry = Vface_default_registry; | |
1058 | else | |
1059 | face->registry = build_string (s + 1); | |
1060 | } | |
1061 | } | |
1062 | else if (fontset >= 0) | |
1b8f7fbc | 1063 | add_to_log ("Unable to load ASCII font of fontset %d", |
7dbdfcf8 | 1064 | make_number (fontset), Qnil); |
82641697 | 1065 | else if (font_name) |
1b8f7fbc | 1066 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1067 | build_string (font_name), Qnil); |
87485d6f MW |
1068 | } |
1069 | ||
82641697 | 1070 | #endif /* HAVE_X_WINDOWS */ |
87485d6f | 1071 | |
87485d6f | 1072 | |
82641697 GM |
1073 | \f |
1074 | /*********************************************************************** | |
1075 | X Colors | |
1076 | ***********************************************************************/ | |
1077 | ||
2d764c78 EZ |
1078 | /* A version of defined_color for non-X frames. */ |
1079 | int | |
1080 | tty_defined_color (f, color_name, color_def, alloc) | |
1081 | struct frame *f; | |
1082 | char *color_name; | |
1083 | XColor *color_def; | |
1084 | int alloc; | |
1085 | { | |
1086 | Lisp_Object color_desc; | |
1087 | int color_idx = FACE_TTY_DEFAULT_COLOR, red = 0, green = 0, blue = 0; | |
1088 | int status = 1; | |
1089 | ||
1090 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1091 | { | |
1092 | status = 0; | |
1093 | color_desc = call1 (Qtty_color_desc, build_string (color_name)); | |
1094 | if (!NILP (color_desc) && CONSP (color_desc)) | |
1095 | { | |
1096 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1097 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1098 | { | |
1099 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1100 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1101 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1102 | } | |
1103 | status = 1; | |
1104 | } | |
1105 | else if (NILP (Fsymbol_value (intern ("tty-color-alist")))) | |
1106 | /* We were called early during startup, and the colors are not | |
1107 | yet set up in tty-color-alist. Don't return a failure | |
1108 | indication, since this produces the annoying "Unable to | |
1109 | load color" messages in the *Messages* buffer. */ | |
1110 | status = 1; | |
1111 | } | |
1112 | color_def->pixel = (unsigned long) color_idx; | |
1113 | color_def->red = red; | |
1114 | color_def->green = green; | |
1115 | color_def->blue = blue; | |
1116 | ||
1117 | return status; | |
1118 | } | |
1119 | ||
1120 | /* Decide if color named COLOR is valid for the display associated | |
1121 | with the frame F; if so, return the rgb values in COLOR_DEF. If | |
1122 | ALLOC is nonzero, allocate a new colormap cell. | |
1123 | ||
1124 | This does the right thing for any type of frame. */ | |
1125 | int | |
1126 | defined_color (f, color_name, color_def, alloc) | |
1127 | struct frame *f; | |
1128 | char *color_name; | |
1129 | XColor *color_def; | |
1130 | int alloc; | |
1131 | { | |
1132 | if (!FRAME_WINDOW_P (f)) | |
1133 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1134 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1135 | else if (FRAME_X_P (f)) |
1136 | return x_defined_color (f, color_name, color_def, alloc); | |
1137 | #endif | |
1138 | #ifdef WINDOWSNT | |
1139 | else if (FRAME_W32_P (f)) | |
1140 | /* FIXME: w32_defined_color doesn't exist! w32fns.c defines | |
1141 | defined_color which needs to be renamed, and the declaration | |
1142 | of color_def therein should be changed. */ | |
1143 | return w32_defined_color (f, color_name, color_def, alloc); | |
1144 | #endif | |
1145 | #ifdef macintosh | |
1146 | else if (FRAME_MAC_P (f)) | |
1147 | /* FIXME: mac_defined_color doesn't exist! */ | |
1148 | return mac_defined_color (f, color_name, color_def, alloc); | |
1149 | #endif | |
1150 | else | |
1151 | abort (); | |
1152 | } | |
1153 | ||
1154 | /* Given the index of the tty color, return its name, a Lisp string. */ | |
1155 | ||
1156 | Lisp_Object | |
1157 | tty_color_name (f, idx) | |
1158 | struct frame *f; | |
1159 | int idx; | |
1160 | { | |
1161 | char *color; | |
1162 | ||
1163 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) | |
1164 | { | |
1165 | Lisp_Object coldesc = call1 (Qtty_color_by_index, make_number (idx)); | |
1166 | ||
1167 | if (!NILP (coldesc)) | |
1168 | return XCAR (coldesc); | |
1169 | } | |
1170 | #ifdef MSDOS | |
1171 | /* We can have an MSDOG frame under -nw for a short window of | |
1172 | opportunity before internal_terminal_init is called. DTRT. */ | |
1173 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1174 | return msdos_stdcolor_name (idx); | |
1175 | #endif | |
1176 | ||
1177 | #ifdef WINDOWSNT | |
1178 | /* FIXME: When/if w32 supports colors in non-window mode, there should | |
1179 | be a call here to a w32-specific function that returns the color | |
1180 | by index using the default color mapping on a Windows console. */ | |
1181 | #endif | |
1182 | ||
1183 | return Qunspecified; | |
1184 | } | |
82641697 GM |
1185 | |
1186 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or | |
1187 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1188 | ||
1189 | static int | |
1190 | face_color_gray_p (f, color_name) | |
1191 | struct frame *f; | |
1192 | char *color_name; | |
1193 | { | |
1194 | XColor color; | |
1195 | int gray_p; | |
1196 | ||
1197 | if (defined_color (f, color_name, &color, 0)) | |
1198 | gray_p = ((abs (color.red - color.green) | |
1199 | < max (color.red, color.green) / 20) | |
1200 | && (abs (color.green - color.blue) | |
1201 | < max (color.green, color.blue) / 20) | |
1202 | && (abs (color.blue - color.red) | |
1203 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1204 | else |
82641697 GM |
1205 | gray_p = 0; |
1206 | ||
1207 | return gray_p; | |
87485d6f | 1208 | } |
87485d6f | 1209 | |
cb637678 | 1210 | |
82641697 GM |
1211 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1212 | BACKGROUND_P non-zero means the color will be used as background | |
1213 | color. */ | |
1214 | ||
1215 | static int | |
1216 | face_color_supported_p (f, color_name, background_p) | |
1217 | struct frame *f; | |
1218 | char *color_name; | |
1219 | int background_p; | |
1220 | { | |
1221 | Lisp_Object frame; | |
2d764c78 | 1222 | XColor not_used; |
82641697 GM |
1223 | |
1224 | XSETFRAME (frame, f); | |
2d764c78 EZ |
1225 | return ((FRAME_WINDOW_P (f) |
1226 | && (!NILP (Fxw_display_color_p (frame)) | |
82641697 GM |
1227 | || xstricmp (color_name, "black") == 0 |
1228 | || xstricmp (color_name, "white") == 0 | |
1229 | || (background_p | |
1230 | && face_color_gray_p (f, color_name)) | |
1231 | || (!NILP (Fx_display_grayscale_p (frame)) | |
2d764c78 EZ |
1232 | && face_color_gray_p (f, color_name)))) |
1233 | || tty_defined_color (f, color_name, ¬_used, 0)); | |
1234 | } | |
82641697 GM |
1235 | |
1236 | ||
1237 | DEFUN ("face-color-gray-p", Fface_color_gray_p, Sface_color_gray_p, 1, 2, 0, | |
1238 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ | |
1239 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1240 | If FRAME is nil or omitted, use the selected frame.") | |
1241 | (color, frame) | |
1242 | Lisp_Object color, frame; | |
cb637678 | 1243 | { |
2d764c78 EZ |
1244 | struct frame *f; |
1245 | ||
1246 | CHECK_FRAME (frame, 0); | |
82641697 | 1247 | CHECK_STRING (color, 0); |
2d764c78 | 1248 | f = XFRAME (frame); |
82641697 GM |
1249 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1250 | } | |
660ed669 | 1251 | |
fffc2367 | 1252 | |
82641697 GM |
1253 | DEFUN ("face-color-supported-p", Fface_color_supported_p, |
1254 | Sface_color_supported_p, 2, 3, 0, | |
1255 | "Return non-nil if COLOR can be displayed on FRAME.\n\ | |
1256 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1257 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1258 | COLOR must be a valid color name.") | |
1259 | (frame, color, background_p) | |
1260 | Lisp_Object frame, color, background_p; | |
1261 | { | |
2d764c78 EZ |
1262 | struct frame *f; |
1263 | ||
1264 | CHECK_FRAME (frame, 0); | |
82641697 | 1265 | CHECK_STRING (color, 0); |
2d764c78 | 1266 | f = XFRAME (frame); |
82641697 GM |
1267 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1268 | return Qt; | |
1269 | return Qnil; | |
1270 | } | |
7b37f67b | 1271 | |
82641697 GM |
1272 | /* Load color with name NAME for use by face FACE on frame F. |
1273 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1274 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1275 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1276 | pixel color. If color cannot be loaded, display a message, and | |
1277 | return the foreground, background or underline color of F, but | |
1278 | record that fact in flags of the face so that we don't try to free | |
1279 | these colors. */ | |
1280 | ||
44747bd0 | 1281 | unsigned long |
82641697 GM |
1282 | load_color (f, face, name, target_index) |
1283 | struct frame *f; | |
1284 | struct face *face; | |
1285 | Lisp_Object name; | |
1286 | enum lface_attribute_index target_index; | |
1287 | { | |
1288 | XColor color; | |
1289 | ||
1290 | xassert (STRINGP (name)); | |
1291 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1292 | || target_index == LFACE_BACKGROUND_INDEX | |
1293 | || target_index == LFACE_UNDERLINE_INDEX | |
1294 | || target_index == LFACE_OVERLINE_INDEX | |
1295 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1296 | || target_index == LFACE_BOX_INDEX); | |
1297 | ||
1298 | /* if the color map is full, defined_color will return a best match | |
1299 | to the values in an existing cell. */ | |
1300 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1301 | { | |
2d764c78 | 1302 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
82641697 GM |
1303 | |
1304 | switch (target_index) | |
1120eb5e | 1305 | { |
82641697 GM |
1306 | case LFACE_FOREGROUND_INDEX: |
1307 | face->foreground_defaulted_p = 1; | |
1308 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1309 | break; | |
1310 | ||
1311 | case LFACE_BACKGROUND_INDEX: | |
1312 | face->background_defaulted_p = 1; | |
1313 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1314 | break; | |
1315 | ||
1316 | case LFACE_UNDERLINE_INDEX: | |
1317 | face->underline_defaulted_p = 1; | |
1318 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1319 | break; | |
1320 | ||
1321 | case LFACE_OVERLINE_INDEX: | |
1322 | face->overline_color_defaulted_p = 1; | |
1323 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1324 | break; |
82641697 GM |
1325 | |
1326 | case LFACE_STRIKE_THROUGH_INDEX: | |
1327 | face->strike_through_color_defaulted_p = 1; | |
1328 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1329 | break; | |
1330 | ||
1331 | case LFACE_BOX_INDEX: | |
1332 | face->box_color_defaulted_p = 1; | |
1333 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1334 | break; | |
1335 | ||
1336 | default: | |
1337 | abort (); | |
1120eb5e | 1338 | } |
82641697 GM |
1339 | } |
1340 | #if GLYPH_DEBUG | |
1341 | else | |
1342 | ++ncolors_allocated; | |
1343 | #endif | |
1344 | ||
1345 | return color.pixel; | |
1346 | } | |
1120eb5e | 1347 | |
2d764c78 | 1348 | #ifdef HAVE_X_WINDOWS |
1120eb5e | 1349 | |
82641697 GM |
1350 | /* Load colors for face FACE which is used on frame F. Colors are |
1351 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1352 | of ATTRS. If the background color specified is not supported on F, | |
1353 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1354 | ||
1355 | static void | |
1356 | load_face_colors (f, face, attrs) | |
1357 | struct frame *f; | |
1358 | struct face *face; | |
1359 | Lisp_Object *attrs; | |
1360 | { | |
1361 | Lisp_Object fg, bg; | |
1362 | ||
1363 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1364 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1365 | ||
1366 | /* Swap colors if face is inverse-video. */ | |
1367 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1368 | { | |
1369 | Lisp_Object tmp; | |
1370 | tmp = fg; | |
1371 | fg = bg; | |
1372 | bg = tmp; | |
1373 | } | |
1374 | ||
1375 | /* Check for support for foreground, not for background because | |
1376 | face_color_supported_p is smart enough to know that grays are | |
1377 | "supported" as background because we are supposed to use stipple | |
1378 | for them. */ | |
1379 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1380 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1381 | { |
1382 | x_destroy_bitmap (f, face->stipple); | |
1383 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1384 | &face->pixmap_w, &face->pixmap_h); | |
1385 | } | |
82641697 | 1386 | |
be8a72f4 | 1387 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1388 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1389 | } |
1390 | ||
660ed669 | 1391 | |
82641697 | 1392 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1393 | |
cb637678 | 1394 | void |
82641697 | 1395 | unload_color (f, pixel) |
cb637678 | 1396 | struct frame *f; |
82641697 | 1397 | unsigned long pixel; |
cb637678 | 1398 | { |
42120bc7 | 1399 | Display *dpy = FRAME_X_DISPLAY (f); |
82641697 GM |
1400 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
1401 | ||
1402 | if (pixel == BLACK_PIX_DEFAULT (f) | |
1403 | || pixel == WHITE_PIX_DEFAULT (f)) | |
1404 | return; | |
cb637678 | 1405 | |
660ed669 | 1406 | BLOCK_INPUT; |
82641697 GM |
1407 | |
1408 | /* If display has an immutable color map, freeing colors is not | |
1409 | necessary and some servers don't allow it. So don't do it. */ | |
1410 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
1411 | { | |
1412 | Colormap cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1413 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
1414 | } | |
1415 | ||
1416 | UNBLOCK_INPUT; | |
1417 | } | |
1418 | ||
1419 | ||
1420 | /* Free colors allocated for FACE. */ | |
1421 | ||
1422 | static void | |
1423 | free_face_colors (f, face) | |
1424 | struct frame *f; | |
1425 | struct face *face; | |
1426 | { | |
1427 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
1428 | ||
1429 | /* If display has an immutable color map, freeing colors is not | |
1430 | necessary and some servers don't allow it. So don't do it. */ | |
1431 | if (class != StaticColor | |
1432 | && class != StaticGray | |
1433 | && class != TrueColor) | |
1434 | { | |
1435 | Display *dpy; | |
1436 | Colormap cmap; | |
1437 | ||
1438 | BLOCK_INPUT; | |
1439 | dpy = FRAME_X_DISPLAY (f); | |
1440 | cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1441 | ||
1442 | if (face->foreground != BLACK_PIX_DEFAULT (f) | |
1443 | && face->foreground != WHITE_PIX_DEFAULT (f) | |
1444 | && !face->foreground_defaulted_p) | |
1445 | { | |
1446 | XFreeColors (dpy, cmap, &face->foreground, 1, 0); | |
1447 | IF_DEBUG (--ncolors_allocated); | |
1448 | } | |
1449 | ||
1450 | if (face->background != BLACK_PIX_DEFAULT (f) | |
1451 | && face->background != WHITE_PIX_DEFAULT (f) | |
1452 | && !face->background_defaulted_p) | |
1453 | { | |
1454 | XFreeColors (dpy, cmap, &face->background, 1, 0); | |
1455 | IF_DEBUG (--ncolors_allocated); | |
1456 | } | |
1457 | ||
1458 | if (face->underline_p | |
1459 | && !face->underline_defaulted_p | |
1460 | && face->underline_color != BLACK_PIX_DEFAULT (f) | |
1461 | && face->underline_color != WHITE_PIX_DEFAULT (f)) | |
1462 | { | |
1463 | XFreeColors (dpy, cmap, &face->underline_color, 1, 0); | |
1464 | IF_DEBUG (--ncolors_allocated); | |
1465 | } | |
1466 | ||
1467 | if (face->overline_p | |
1468 | && !face->overline_color_defaulted_p | |
1469 | && face->overline_color != BLACK_PIX_DEFAULT (f) | |
1470 | && face->overline_color != WHITE_PIX_DEFAULT (f)) | |
1471 | { | |
1472 | XFreeColors (dpy, cmap, &face->overline_color, 1, 0); | |
1473 | IF_DEBUG (--ncolors_allocated); | |
1474 | } | |
1475 | ||
1476 | if (face->strike_through_p | |
1477 | && !face->strike_through_color_defaulted_p | |
1478 | && face->strike_through_color != BLACK_PIX_DEFAULT (f) | |
1479 | && face->strike_through_color != WHITE_PIX_DEFAULT (f)) | |
1480 | { | |
1481 | XFreeColors (dpy, cmap, &face->strike_through_color, 1, 0); | |
1482 | IF_DEBUG (--ncolors_allocated); | |
1483 | } | |
1484 | ||
1485 | if (face->box != FACE_NO_BOX | |
1486 | && !face->box_color_defaulted_p | |
1487 | && face->box_color != BLACK_PIX_DEFAULT (f) | |
1488 | && face->box_color != WHITE_PIX_DEFAULT (f)) | |
1489 | { | |
1490 | XFreeColors (dpy, cmap, &face->box_color, 1, 0); | |
1491 | IF_DEBUG (--ncolors_allocated); | |
1492 | } | |
1493 | ||
1494 | UNBLOCK_INPUT; | |
1495 | } | |
1496 | } | |
2d764c78 | 1497 | #endif /* HAVE_X_WINDOWS */ |
82641697 GM |
1498 | |
1499 | ||
1500 | \f | |
1501 | /*********************************************************************** | |
1502 | XLFD Font Names | |
1503 | ***********************************************************************/ | |
1504 | ||
1505 | /* An enumerator for each field of an XLFD font name. */ | |
1506 | ||
1507 | enum xlfd_field | |
1508 | { | |
1509 | XLFD_FOUNDRY, | |
1510 | XLFD_FAMILY, | |
1511 | XLFD_WEIGHT, | |
1512 | XLFD_SLANT, | |
1513 | XLFD_SWIDTH, | |
1514 | XLFD_ADSTYLE, | |
1515 | XLFD_PIXEL_SIZE, | |
1516 | XLFD_POINT_SIZE, | |
1517 | XLFD_RESX, | |
1518 | XLFD_RESY, | |
1519 | XLFD_SPACING, | |
1520 | XLFD_AVGWIDTH, | |
1521 | XLFD_REGISTRY, | |
1522 | XLFD_ENCODING, | |
1523 | XLFD_LAST | |
1524 | }; | |
1525 | ||
1526 | /* An enumerator for each possible slant value of a font. Taken from | |
1527 | the XLFD specification. */ | |
1528 | ||
1529 | enum xlfd_slant | |
1530 | { | |
1531 | XLFD_SLANT_UNKNOWN, | |
1532 | XLFD_SLANT_ROMAN, | |
1533 | XLFD_SLANT_ITALIC, | |
1534 | XLFD_SLANT_OBLIQUE, | |
1535 | XLFD_SLANT_REVERSE_ITALIC, | |
1536 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1537 | XLFD_SLANT_OTHER | |
1538 | }; | |
1539 | ||
1540 | /* Relative font weight according to XLFD documentation. */ | |
1541 | ||
1542 | enum xlfd_weight | |
1543 | { | |
1544 | XLFD_WEIGHT_UNKNOWN, | |
1545 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1546 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1547 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1548 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1549 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1550 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1551 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1552 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1553 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1554 | }; | |
1555 | ||
1556 | /* Relative proportionate width. */ | |
1557 | ||
1558 | enum xlfd_swidth | |
1559 | { | |
1560 | XLFD_SWIDTH_UNKNOWN, | |
1561 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1562 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1563 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1564 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1565 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1566 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1567 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1568 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1569 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1570 | }; | |
1571 | ||
1572 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1573 | names to numeric and symbolic values. */ | |
1574 | ||
1575 | struct table_entry | |
1576 | { | |
1577 | char *name; | |
1578 | int numeric; | |
1579 | Lisp_Object *symbol; | |
1580 | }; | |
1581 | ||
1582 | /* Table of XLFD slant names and their numeric and symbolic | |
1583 | representations. This table must be sorted by slant names in | |
1584 | ascending order. */ | |
1585 | ||
1586 | static struct table_entry slant_table[] = | |
1587 | { | |
1588 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1589 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1590 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1591 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1592 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1593 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1594 | }; | |
1595 | ||
1596 | /* Table of XLFD weight names. This table must be sorted by weight | |
1597 | names in ascending order. */ | |
1598 | ||
1599 | static struct table_entry weight_table[] = | |
1600 | { | |
1601 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1602 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1603 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1604 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1605 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1606 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1607 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1608 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1609 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1610 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1611 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1612 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1613 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1614 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1615 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1616 | }; | |
1617 | ||
1618 | /* Table of XLFD width names. This table must be sorted by width | |
1619 | names in ascending order. */ | |
1620 | ||
1621 | static struct table_entry swidth_table[] = | |
1622 | { | |
1623 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1624 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1625 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1626 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1627 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1628 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1629 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1630 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1631 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1632 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1633 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1634 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1635 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1636 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1637 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1638 | }; | |
1639 | ||
1640 | /* Structure used to hold the result of splitting font names in XLFD | |
1641 | format into their fields. */ | |
1642 | ||
1643 | struct font_name | |
1644 | { | |
1645 | /* The original name which is modified destructively by | |
1646 | split_font_name. The pointer is kept here to be able to free it | |
1647 | if it was allocated from the heap. */ | |
1648 | char *name; | |
1649 | ||
1650 | /* Font name fields. Each vector element points into `name' above. | |
1651 | Fields are NUL-terminated. */ | |
1652 | char *fields[XLFD_LAST]; | |
1653 | ||
1654 | /* Numeric values for those fields that interest us. See | |
1655 | split_font_name for which these are. */ | |
1656 | int numeric[XLFD_LAST]; | |
1657 | }; | |
1658 | ||
1659 | /* The frame in effect when sorting font names. Set temporarily in | |
1660 | sort_fonts so that it is available in font comparison functions. */ | |
1661 | ||
1662 | static struct frame *font_frame; | |
1663 | ||
1664 | /* Order by which font selection chooses fonts. The default values | |
1665 | mean `first, find a best match for the font width, then for the | |
1666 | font height, then for weight, then for slant.' This variable can be | |
1667 | set via set-face-font-sort-order. */ | |
1668 | ||
1669 | static int font_sort_order[4]; | |
1670 | ||
1671 | ||
1672 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1673 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1674 | is a pointer to the matching table entry or null if no table entry | |
1675 | matches. */ | |
1676 | ||
1677 | static struct table_entry * | |
1678 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1679 | struct table_entry *table; | |
1680 | int dim; | |
1681 | struct font_name *font; | |
1682 | int field_index; | |
1683 | { | |
1684 | /* Function split_font_name converts fields to lower-case, so there | |
1685 | is no need to use xstrlwr or xstricmp here. */ | |
1686 | char *s = font->fields[field_index]; | |
1687 | int low, mid, high, cmp; | |
1688 | ||
1689 | low = 0; | |
1690 | high = dim - 1; | |
1691 | ||
1692 | while (low <= high) | |
1693 | { | |
1694 | mid = (low + high) / 2; | |
1695 | cmp = strcmp (table[mid].name, s); | |
1696 | ||
1697 | if (cmp < 0) | |
1698 | low = mid + 1; | |
1699 | else if (cmp > 0) | |
1700 | high = mid - 1; | |
1701 | else | |
1702 | return table + mid; | |
1703 | } | |
1704 | ||
1705 | return NULL; | |
1706 | } | |
1707 | ||
1708 | ||
1709 | /* Return a numeric representation for font name field | |
1710 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1711 | has DIM entries. Value is the numeric value found or DFLT if no | |
1712 | table entry matches. This function is used to translate weight, | |
1713 | slant, and swidth names of XLFD font names to numeric values. */ | |
1714 | ||
1715 | static INLINE int | |
1716 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1717 | struct table_entry *table; | |
1718 | int dim; | |
1719 | struct font_name *font; | |
1720 | int field_index; | |
1721 | int dflt; | |
1722 | { | |
1723 | struct table_entry *p; | |
1724 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1725 | return p ? p->numeric : dflt; | |
1726 | } | |
1727 | ||
1728 | ||
1729 | /* Return a symbolic representation for font name field | |
1730 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1731 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1732 | table entry matches. This function is used to translate weight, | |
1733 | slant, and swidth names of XLFD font names to symbols. */ | |
1734 | ||
1735 | static INLINE Lisp_Object | |
1736 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1737 | struct table_entry *table; | |
1738 | int dim; | |
1739 | struct font_name *font; | |
1740 | int field_index; | |
1741 | int dflt; | |
1742 | { | |
1743 | struct table_entry *p; | |
1744 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1745 | return p ? *p->symbol : dflt; | |
1746 | } | |
1747 | ||
1748 | ||
1749 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1750 | ||
1751 | static INLINE int | |
1752 | xlfd_numeric_slant (font) | |
1753 | struct font_name *font; | |
1754 | { | |
1755 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1756 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1757 | } | |
1758 | ||
1759 | ||
1760 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1761 | ||
1762 | static INLINE Lisp_Object | |
1763 | xlfd_symbolic_slant (font) | |
1764 | struct font_name *font; | |
1765 | { | |
1766 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1767 | font, XLFD_SLANT, Qnormal); | |
1768 | } | |
1769 | ||
1770 | ||
1771 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1772 | ||
1773 | static INLINE int | |
1774 | xlfd_numeric_weight (font) | |
1775 | struct font_name *font; | |
1776 | { | |
1777 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1778 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1779 | } | |
1780 | ||
1781 | ||
1782 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1783 | ||
1784 | static INLINE Lisp_Object | |
1785 | xlfd_symbolic_weight (font) | |
1786 | struct font_name *font; | |
1787 | { | |
1788 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1789 | font, XLFD_WEIGHT, Qnormal); | |
1790 | } | |
1791 | ||
1792 | ||
1793 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1794 | name fields are found in FONT. */ | |
1795 | ||
1796 | static INLINE int | |
1797 | xlfd_numeric_swidth (font) | |
1798 | struct font_name *font; | |
1799 | { | |
1800 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1801 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1802 | } | |
1803 | ||
1804 | ||
1805 | /* Return a symbolic value for the swidth of FONT. */ | |
1806 | ||
1807 | static INLINE Lisp_Object | |
1808 | xlfd_symbolic_swidth (font) | |
1809 | struct font_name *font; | |
1810 | { | |
1811 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1812 | font, XLFD_SWIDTH, Qnormal); | |
1813 | } | |
1814 | ||
1815 | ||
1816 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1817 | entries. Value is a pointer to the matching table entry or null if | |
1818 | no element of TABLE contains SYMBOL. */ | |
1819 | ||
1820 | static struct table_entry * | |
1821 | face_value (table, dim, symbol) | |
1822 | struct table_entry *table; | |
1823 | int dim; | |
1824 | Lisp_Object symbol; | |
1825 | { | |
1826 | int i; | |
1827 | ||
1828 | xassert (SYMBOLP (symbol)); | |
1829 | ||
1830 | for (i = 0; i < dim; ++i) | |
1831 | if (EQ (*table[i].symbol, symbol)) | |
1832 | break; | |
1833 | ||
1834 | return i < dim ? table + i : NULL; | |
1835 | } | |
1836 | ||
1837 | ||
1838 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1839 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1840 | ||
1841 | static INLINE int | |
1842 | face_numeric_value (table, dim, symbol) | |
1843 | struct table_entry *table; | |
1844 | int dim; | |
1845 | Lisp_Object symbol; | |
1846 | { | |
1847 | struct table_entry *p = face_value (table, dim, symbol); | |
1848 | return p ? p->numeric : -1; | |
1849 | } | |
1850 | ||
1851 | ||
1852 | /* Return a numeric value representing the weight specified by Lisp | |
1853 | symbol WEIGHT. Value is one of the enumerators of enum | |
1854 | xlfd_weight. */ | |
1855 | ||
1856 | static INLINE int | |
1857 | face_numeric_weight (weight) | |
1858 | Lisp_Object weight; | |
1859 | { | |
1860 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1861 | } | |
1862 | ||
1863 | ||
1864 | /* Return a numeric value representing the slant specified by Lisp | |
1865 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
1866 | ||
1867 | static INLINE int | |
1868 | face_numeric_slant (slant) | |
1869 | Lisp_Object slant; | |
1870 | { | |
1871 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
1872 | } | |
1873 | ||
1874 | ||
1875 | /* Return a numeric value representing the swidth specified by Lisp | |
1876 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
1877 | ||
1878 | static int | |
1879 | face_numeric_swidth (width) | |
1880 | Lisp_Object width; | |
1881 | { | |
1882 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
1883 | } | |
1884 | ||
1885 | ||
1886 | #ifdef HAVE_X_WINDOWS | |
1887 | ||
1888 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
1889 | ||
1890 | static INLINE int | |
1891 | xlfd_fixed_p (font) | |
1892 | struct font_name *font; | |
1893 | { | |
1894 | /* Function split_font_name converts fields to lower-case, so there | |
1895 | is no need to use tolower here. */ | |
1896 | return *font->fields[XLFD_SPACING] != 'p'; | |
1897 | } | |
1898 | ||
1899 | ||
1900 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
1901 | ||
1902 | The actual height of the font when displayed on F depends on the | |
1903 | resolution of both the font and frame. For example, a 10pt font | |
1904 | designed for a 100dpi display will display larger than 10pt on a | |
1905 | 75dpi display. (It's not unusual to use fonts not designed for the | |
1906 | display one is using. For example, some intlfonts are available in | |
1907 | 72dpi versions, only.) | |
1908 | ||
1909 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
1910 | be determined. */ | |
1911 | ||
1912 | static INLINE int | |
1913 | xlfd_point_size (f, font) | |
1914 | struct frame *f; | |
1915 | struct font_name *font; | |
1916 | { | |
1917 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
1918 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
1919 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
1920 | int real_pt; | |
1921 | ||
1922 | if (font_resy == 0 || font_pt == 0) | |
1923 | real_pt = 0; | |
1924 | else | |
1925 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
1926 | ||
1927 | return real_pt; | |
1928 | } | |
1929 | ||
1930 | ||
1931 | /* Split XLFD font name FONT->name destructively into NUL-terminated, | |
1932 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
1933 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
1934 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
1935 | zero if the font name doesn't have the format we expect. The | |
1936 | expected format is a font name that starts with a `-' and has | |
1937 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
1938 | forms of font names where certain field contents are enclosed in | |
1939 | square brackets. We don't support that, for now. */ | |
1940 | ||
1941 | static int | |
1942 | split_font_name (f, font, numeric_p) | |
1943 | struct frame *f; | |
1944 | struct font_name *font; | |
1945 | int numeric_p; | |
1946 | { | |
1947 | int i = 0; | |
1948 | int success_p; | |
1949 | ||
1950 | if (*font->name == '-') | |
1951 | { | |
1952 | char *p = xstrlwr (font->name) + 1; | |
1953 | ||
1954 | while (i < XLFD_LAST) | |
1955 | { | |
1956 | font->fields[i] = p; | |
1957 | ++i; | |
1958 | ||
1959 | while (*p && *p != '-') | |
1960 | ++p; | |
1961 | ||
1962 | if (*p != '-') | |
1963 | break; | |
1964 | ||
1965 | *p++ = 0; | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | success_p = i == XLFD_LAST; | |
1970 | ||
1971 | /* If requested, and font name was in the expected format, | |
1972 | compute numeric values for some fields. */ | |
1973 | if (numeric_p && success_p) | |
1974 | { | |
1975 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
1976 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
1977 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
1978 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
1979 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
1980 | } | |
1981 | ||
1982 | return success_p; | |
1983 | } | |
1984 | ||
1985 | ||
1986 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
1987 | pointer to the font name, which is allocated via xmalloc. */ | |
1988 | ||
1989 | static char * | |
1990 | build_font_name (font) | |
1991 | struct font_name *font; | |
1992 | { | |
1993 | int i; | |
1994 | int size = 100; | |
1995 | char *font_name = (char *) xmalloc (size); | |
1996 | int total_length = 0; | |
1997 | ||
1998 | for (i = 0; i < XLFD_LAST; ++i) | |
1999 | { | |
2000 | /* Add 1 because of the leading `-'. */ | |
2001 | int len = strlen (font->fields[i]) + 1; | |
2002 | ||
2003 | /* Reallocate font_name if necessary. Add 1 for the final | |
2004 | NUL-byte. */ | |
2005 | if (total_length + len + 1 >= size) | |
2006 | { | |
2007 | int new_size = max (2 * size, size + len + 1); | |
2008 | int sz = new_size * sizeof *font_name; | |
2009 | font_name = (char *) xrealloc (font_name, sz); | |
2010 | size = new_size; | |
2011 | } | |
2012 | ||
2013 | font_name[total_length] = '-'; | |
2014 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2015 | total_length += len; | |
2016 | } | |
2017 | ||
2018 | font_name[total_length] = 0; | |
2019 | return font_name; | |
2020 | } | |
2021 | ||
2022 | ||
2023 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2024 | itself and all `name' fields in its elements. */ | |
2025 | ||
2026 | static INLINE void | |
2027 | free_font_names (fonts, n) | |
2028 | struct font_name *fonts; | |
2029 | int n; | |
2030 | { | |
2031 | while (n) | |
2032 | xfree (fonts[--n].name); | |
2033 | xfree (fonts); | |
2034 | } | |
2035 | ||
2036 | ||
2037 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2038 | elements using qsort and comparison function CMPFN. F is the frame | |
2039 | on which the fonts will be used. The global variable font_frame | |
2040 | is temporarily set to F to make it available in CMPFN. */ | |
2041 | ||
2042 | static INLINE void | |
2043 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2044 | struct frame *f; | |
2045 | struct font_name *fonts; | |
2046 | int nfonts; | |
2047 | int (*cmpfn) P_ ((const void *, const void *)); | |
2048 | { | |
2049 | font_frame = f; | |
2050 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2051 | font_frame = NULL; | |
2052 | } | |
2053 | ||
2054 | ||
2055 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2056 | display in x_display_list. FONTS is a pointer to a vector of | |
2057 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2058 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2059 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2060 | scalable fonts. | |
2061 | ||
2062 | For all fonts found, set FONTS[i].name to the name of the font, | |
2063 | allocated via xmalloc, and split font names into fields. Ignore | |
2064 | fonts that we can't parse. Value is the number of fonts found. | |
2065 | ||
2066 | This is similar to x_list_fonts. The differences are: | |
2067 | ||
2068 | 1. It avoids consing. | |
2069 | 2. It never calls XLoadQueryFont. */ | |
2070 | ||
2071 | static int | |
2072 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2073 | scalable_fonts_p) | |
2074 | struct frame *f; | |
2075 | char *pattern; | |
2076 | struct font_name *fonts; | |
2077 | int nfonts, try_alternatives_p; | |
2078 | int scalable_fonts_p; | |
2079 | { | |
2080 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
2081 | int n, i, j; | |
2082 | char **names; | |
2083 | ||
2084 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2085 | BLOCK_INPUT; | |
2086 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2087 | UNBLOCK_INPUT; | |
2088 | ||
2089 | if (names) | |
2090 | { | |
2091 | /* Make a copy of the font names we got from X, and | |
2092 | split them into fields. */ | |
2093 | for (i = j = 0; i < n; ++i) | |
2094 | { | |
2095 | /* Make a copy of the font name. */ | |
2096 | fonts[j].name = xstrdup (names[i]); | |
2097 | ||
2098 | /* Ignore fonts having a name that we can't parse. */ | |
2099 | if (!split_font_name (f, fonts + j, 1)) | |
2100 | xfree (fonts[j].name); | |
2101 | else if (font_scalable_p (fonts + j)) | |
2102 | { | |
2103 | #if SCALABLE_FONTS | |
2104 | if (!scalable_fonts_p | |
2105 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2106 | xfree (fonts[j].name); | |
2107 | else | |
2108 | ++j; | |
2109 | #else /* !SCALABLE_FONTS */ | |
2110 | /* Always ignore scalable fonts. */ | |
2111 | xfree (fonts[j].name); | |
2112 | #endif /* !SCALABLE_FONTS */ | |
2113 | } | |
2114 | else | |
2115 | ++j; | |
2116 | } | |
2117 | ||
2118 | n = j; | |
2119 | ||
2120 | /* Free font names. */ | |
2121 | BLOCK_INPUT; | |
2122 | XFreeFontNames (names); | |
2123 | UNBLOCK_INPUT; | |
2124 | } | |
2125 | ||
2126 | ||
2127 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2128 | if (n == 0 && try_alternatives_p) | |
2129 | { | |
2130 | Lisp_Object list = Valternate_fontname_alist; | |
2131 | ||
2132 | while (CONSP (list)) | |
2133 | { | |
2134 | Lisp_Object entry = XCAR (list); | |
2135 | if (CONSP (entry) | |
2136 | && STRINGP (XCAR (entry)) | |
2137 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2138 | break; | |
2139 | list = XCDR (list); | |
2140 | } | |
2141 | ||
2142 | if (CONSP (list)) | |
2143 | { | |
2144 | Lisp_Object patterns = XCAR (list); | |
2145 | Lisp_Object name; | |
2146 | ||
2147 | while (CONSP (patterns) | |
2148 | /* If list is screwed up, give up. */ | |
2149 | && (name = XCAR (patterns), | |
2150 | STRINGP (name)) | |
2151 | /* Ignore patterns equal to PATTERN because we tried that | |
2152 | already with no success. */ | |
2153 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2154 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2155 | fonts, nfonts, 0, | |
2156 | scalable_fonts_p), | |
2157 | n == 0))) | |
2158 | patterns = XCDR (patterns); | |
2159 | } | |
2160 | } | |
2161 | ||
2162 | return n; | |
2163 | } | |
2164 | ||
2165 | ||
2166 | /* Determine the first font matching PATTERN on frame F. Return in | |
2167 | *FONT the matching font name, split into fields. Value is non-zero | |
2168 | if a match was found. */ | |
2169 | ||
2170 | static int | |
2171 | first_font_matching (f, pattern, font) | |
2172 | struct frame *f; | |
2173 | char *pattern; | |
2174 | struct font_name *font; | |
2175 | { | |
2176 | int nfonts = 100; | |
2177 | struct font_name *fonts; | |
2178 | ||
2179 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2180 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2181 | ||
2182 | if (nfonts > 0) | |
2183 | { | |
2184 | bcopy (&fonts[0], font, sizeof *font); | |
2185 | ||
2186 | fonts[0].name = NULL; | |
2187 | free_font_names (fonts, nfonts); | |
2188 | } | |
2189 | ||
2190 | return nfonts > 0; | |
2191 | } | |
2192 | ||
2193 | ||
2194 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2195 | using comparison function CMPFN. Value is the number of fonts | |
2196 | found. If value is non-zero, *FONTS is set to a vector of | |
2197 | font_name structures allocated from the heap containing matching | |
2198 | fonts. Each element of *FONTS contains a name member that is also | |
2199 | allocated from the heap. Font names in these structures are split | |
2200 | into fields. Use free_font_names to free such an array. */ | |
2201 | ||
2202 | static int | |
2203 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2204 | struct frame *f; | |
2205 | char *pattern; | |
2206 | int (*cmpfn) P_ ((const void *, const void *)); | |
2207 | struct font_name **fonts; | |
2208 | { | |
2209 | int nfonts; | |
2210 | ||
2211 | /* Get the list of fonts matching pattern. 100 should suffice. */ | |
057df17c GM |
2212 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2213 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2214 | nfonts = XFASTINT (Vfont_list_limit); | |
2215 | ||
82641697 GM |
2216 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2217 | #if SCALABLE_FONTS | |
2218 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2219 | #else | |
2220 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2221 | #endif | |
2222 | ||
2223 | /* Sort the resulting array and return it in *FONTS. If no | |
2224 | fonts were found, make sure to set *FONTS to null. */ | |
2225 | if (nfonts) | |
2226 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2227 | else | |
2228 | { | |
2229 | xfree (*fonts); | |
2230 | *fonts = NULL; | |
2231 | } | |
2232 | ||
2233 | return nfonts; | |
2234 | } | |
2235 | ||
2236 | ||
2237 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2238 | strcmp. Sort order is given by the global variable | |
2239 | font_sort_order. Font names are sorted so that, everything else | |
2240 | being equal, fonts with a resolution closer to that of the frame on | |
2241 | which they are used are listed first. The global variable | |
2242 | font_frame is the frame on which we operate. */ | |
2243 | ||
2244 | static int | |
2245 | cmp_font_names (a, b) | |
2246 | const void *a, *b; | |
2247 | { | |
2248 | struct font_name *x = (struct font_name *) a; | |
2249 | struct font_name *y = (struct font_name *) b; | |
2250 | int cmp; | |
2251 | ||
2252 | /* All strings have been converted to lower-case by split_font_name, | |
2253 | so we can use strcmp here. */ | |
2254 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2255 | if (cmp == 0) | |
2256 | { | |
2257 | int i; | |
2258 | ||
2259 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) | |
2260 | { | |
2261 | int j = font_sort_order[i]; | |
2262 | cmp = x->numeric[j] - y->numeric[j]; | |
2263 | } | |
2264 | ||
2265 | if (cmp == 0) | |
2266 | { | |
2267 | /* Everything else being equal, we prefer fonts with an | |
2268 | y-resolution closer to that of the frame. */ | |
2269 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2270 | int x_resy = x->numeric[XLFD_RESY]; | |
2271 | int y_resy = y->numeric[XLFD_RESY]; | |
2272 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2273 | } | |
2274 | } | |
2275 | ||
2276 | return cmp; | |
2277 | } | |
2278 | ||
2279 | ||
2280 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
2281 | is non-null list fonts matching that pattern. Otherwise, if | |
2282 | REGISTRY_AND_ENCODING is non-null return only fonts with that | |
2283 | registry and encoding, otherwise return fonts of any registry and | |
2284 | encoding. Set *FONTS to a vector of font_name structures allocated | |
2285 | from the heap containing the fonts found. Value is the number of | |
2286 | fonts found. */ | |
2287 | ||
2288 | static int | |
2289 | font_list (f, pattern, family, registry_and_encoding, fonts) | |
2290 | struct frame *f; | |
2291 | char *pattern; | |
2292 | char *family; | |
2293 | char *registry_and_encoding; | |
2294 | struct font_name **fonts; | |
2295 | { | |
2296 | if (pattern == NULL) | |
2297 | { | |
2298 | if (family == NULL) | |
2299 | family = "*"; | |
2300 | ||
2301 | if (registry_and_encoding == NULL) | |
2302 | registry_and_encoding = "*"; | |
2303 | ||
2304 | pattern = (char *) alloca (strlen (family) | |
2305 | + strlen (registry_and_encoding) | |
2306 | + 10); | |
2307 | if (index (family, '-')) | |
2308 | sprintf (pattern, "-%s-*-%s", family, registry_and_encoding); | |
2309 | else | |
2310 | sprintf (pattern, "-*-%s-*-%s", family, registry_and_encoding); | |
2311 | } | |
2312 | ||
2313 | return sorted_font_list (f, pattern, cmp_font_names, fonts); | |
2314 | } | |
2315 | ||
2316 | ||
2317 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2318 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2319 | entries. */ |
2320 | ||
2321 | static void | |
2322 | remove_duplicates (list) | |
2323 | Lisp_Object list; | |
2324 | { | |
2325 | Lisp_Object tail = list; | |
2326 | ||
2327 | while (!NILP (tail) && !NILP (XCDR (tail))) | |
2328 | { | |
2329 | Lisp_Object next = XCDR (tail); | |
2330 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2331 | XCDR (tail) = XCDR (next); | |
2332 | else | |
2333 | tail = XCDR (tail); | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | ||
92610620 | 2338 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2339 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2340 | If FAMILY is omitted or nil, list all families.\n\ | |
2341 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2342 | `?' and `*'.\n\ | |
2343 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2344 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2345 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2346 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2347 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2348 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2349 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2350 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2351 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2352 | The result list is sorted according to the current setting of\n\ |
2353 | the face font sort order.") | |
2354 | (family, frame) | |
2355 | Lisp_Object family, frame; | |
2356 | { | |
2357 | struct frame *f = check_x_frame (frame); | |
2358 | struct font_name *fonts; | |
2359 | int i, nfonts; | |
2360 | Lisp_Object result; | |
2361 | struct gcpro gcpro1; | |
2362 | char *family_pattern; | |
2363 | ||
2364 | if (NILP (family)) | |
2365 | family_pattern = "*"; | |
2366 | else | |
2367 | { | |
2368 | CHECK_STRING (family, 1); | |
2369 | family_pattern = LSTRDUPA (family); | |
2370 | } | |
2371 | ||
2372 | result = Qnil; | |
2373 | GCPRO1 (result); | |
2374 | nfonts = font_list (f, NULL, family_pattern, NULL, &fonts); | |
2375 | for (i = nfonts - 1; i >= 0; --i) | |
2376 | { | |
057df17c GM |
2377 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2378 | char *tem; | |
82641697 GM |
2379 | |
2380 | #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) | |
2381 | ||
2382 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); | |
2383 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2384 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2385 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2386 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2387 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2388 | tem = build_font_name (fonts + i); |
2389 | ASET (v, 6, build_string (tem)); | |
2390 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2391 | fonts[i].fields[XLFD_ENCODING]); | |
2392 | ASET (v, 7, build_string (tem)); | |
2393 | xfree (tem); | |
2394 | ||
82641697 GM |
2395 | result = Fcons (v, result); |
2396 | ||
2397 | #undef ASET | |
2398 | } | |
2399 | ||
2400 | remove_duplicates (result); | |
2401 | free_font_names (fonts, nfonts); | |
2402 | UNGCPRO; | |
2403 | return result; | |
2404 | } | |
2405 | ||
2406 | ||
2407 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2408 | 0, 1, 0, | |
2409 | "Return a list of available font families on FRAME.\n\ | |
2410 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2411 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2412 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2413 | are fixed-pitch.") | |
2414 | (frame) | |
2415 | Lisp_Object frame; | |
2416 | { | |
2417 | struct frame *f = check_x_frame (frame); | |
2418 | int nfonts, i; | |
2419 | struct font_name *fonts; | |
2420 | Lisp_Object result; | |
2421 | struct gcpro gcpro1; | |
057df17c GM |
2422 | int count = specpdl_ptr - specpdl; |
2423 | int limit; | |
2424 | ||
2425 | /* Let's consider all fonts. Increase the limit for matching | |
2426 | fonts until we have them all. */ | |
2427 | for (limit = 500;;) | |
2428 | { | |
2429 | specbind (intern ("font-list-limit"), make_number (limit)); | |
2430 | nfonts = font_list (f, NULL, "*", NULL, &fonts); | |
2431 | ||
2432 | if (nfonts == limit) | |
2433 | { | |
2434 | free_font_names (fonts, nfonts); | |
2435 | limit *= 2; | |
2436 | } | |
2437 | else | |
2438 | break; | |
2439 | } | |
82641697 | 2440 | |
82641697 GM |
2441 | result = Qnil; |
2442 | GCPRO1 (result); | |
2443 | for (i = nfonts - 1; i >= 0; --i) | |
2444 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2445 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2446 | result); | |
2447 | ||
2448 | remove_duplicates (result); | |
2449 | free_font_names (fonts, nfonts); | |
2450 | UNGCPRO; | |
057df17c | 2451 | return unbind_to (count, result); |
82641697 GM |
2452 | } |
2453 | ||
2454 | ||
2455 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2456 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2457 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2458 | the same size as FACE on FRAME.\n\ | |
2459 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2460 | the * character matches any substring, and\n\ | |
2461 | the ? character matches any single character.\n\ | |
2462 | PATTERN is case-insensitive.\n\ | |
2463 | FACE is a face name--a symbol.\n\ | |
2464 | \n\ | |
2465 | The return value is a list of strings, suitable as arguments to\n\ | |
2466 | set-face-font.\n\ | |
2467 | \n\ | |
2468 | Fonts Emacs can't use may or may not be excluded\n\ | |
2469 | even if they match PATTERN and FACE.\n\ | |
2470 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2471 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2472 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2473 | occupied by a character of a font. In that case, return only fonts\n\ | |
2474 | the WIDTH times as wide as FACE on FRAME.") | |
2475 | (pattern, face, frame, maximum, width) | |
2476 | Lisp_Object pattern, face, frame, maximum, width; | |
2477 | { | |
2478 | struct frame *f; | |
2479 | int size; | |
2480 | int maxnames; | |
2481 | ||
2482 | check_x (); | |
2483 | CHECK_STRING (pattern, 0); | |
2484 | ||
2485 | if (NILP (maximum)) | |
2486 | maxnames = 2000; | |
2487 | else | |
2488 | { | |
2489 | CHECK_NATNUM (maximum, 0); | |
2490 | maxnames = XINT (maximum); | |
2491 | } | |
2492 | ||
2493 | if (!NILP (width)) | |
2494 | CHECK_NUMBER (width, 4); | |
2495 | ||
2496 | /* We can't simply call check_x_frame because this function may be | |
2497 | called before any frame is created. */ | |
2498 | f = frame_or_selected_frame (frame, 2); | |
2499 | if (!FRAME_X_P (f)) | |
2500 | { | |
2501 | /* Perhaps we have not yet created any frame. */ | |
2502 | f = NULL; | |
2503 | face = Qnil; | |
2504 | } | |
2505 | ||
2506 | /* Determine the width standard for comparison with the fonts we find. */ | |
2507 | ||
2508 | if (NILP (face)) | |
2509 | size = 0; | |
2510 | else | |
2511 | { | |
2512 | /* This is of limited utility since it works with character | |
2513 | widths. Keep it for compatibility. --gerd. */ | |
2514 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
2515 | struct face *face = FACE_FROM_ID (f, face_id); | |
2516 | ||
2517 | if (face->font) | |
2518 | size = face->font->max_bounds.width; | |
2519 | else | |
2520 | size = FRAME_FONT (f)->max_bounds.width; | |
2521 | ||
2522 | if (!NILP (width)) | |
2523 | size *= XINT (width); | |
2524 | } | |
2525 | ||
2526 | { | |
2527 | Lisp_Object args[2]; | |
2528 | ||
2529 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2530 | if (f == NULL) | |
2531 | /* We don't have to check fontsets. */ | |
2532 | return args[0]; | |
2533 | args[1] = list_fontsets (f, pattern, size); | |
2534 | return Fnconc (2, args); | |
2535 | } | |
2536 | } | |
2537 | ||
2538 | #endif /* HAVE_X_WINDOWS */ | |
2539 | ||
2540 | ||
2541 | \f | |
2542 | /*********************************************************************** | |
2543 | Lisp Faces | |
2544 | ***********************************************************************/ | |
2545 | ||
2546 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2547 | ||
2548 | #define LFACE_FAMILY(LFACE) \ | |
2549 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2550 | #define LFACE_HEIGHT(LFACE) \ | |
2551 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2552 | #define LFACE_WEIGHT(LFACE) \ | |
2553 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2554 | #define LFACE_SLANT(LFACE) \ | |
2555 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2556 | #define LFACE_UNDERLINE(LFACE) \ | |
2557 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2558 | #define LFACE_INVERSE(LFACE) \ | |
2559 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2560 | #define LFACE_FOREGROUND(LFACE) \ | |
2561 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2562 | #define LFACE_BACKGROUND(LFACE) \ | |
2563 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2564 | #define LFACE_STIPPLE(LFACE) \ | |
2565 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2566 | #define LFACE_SWIDTH(LFACE) \ | |
2567 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2568 | #define LFACE_OVERLINE(LFACE) \ | |
2569 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2570 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2571 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2572 | #define LFACE_BOX(LFACE) \ | |
2573 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
2574 | ||
2575 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2576 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2577 | ||
2578 | #define LFACEP(LFACE) \ | |
2579 | (VECTORP (LFACE) \ | |
2580 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2581 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2582 | ||
2583 | ||
2584 | #if GLYPH_DEBUG | |
2585 | ||
2586 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2587 | ||
2588 | static void | |
2589 | check_lface_attrs (attrs) | |
2590 | Lisp_Object *attrs; | |
2591 | { | |
2592 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2593 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2594 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2595 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2596 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2597 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); | |
2598 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
2599 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2600 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2601 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2602 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2603 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2604 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2605 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2606 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2607 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2608 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2609 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2610 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2611 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2612 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2613 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2614 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2615 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2616 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2617 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2618 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2619 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2620 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2621 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2622 | #ifdef HAVE_WINDOW_SYSTEM | |
2623 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2624 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2625 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
82641697 GM |
2626 | #endif |
2627 | } | |
2628 | ||
2629 | ||
2630 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2631 | ||
2632 | static void | |
2633 | check_lface (lface) | |
2634 | Lisp_Object lface; | |
2635 | { | |
2636 | if (!NILP (lface)) | |
2637 | { | |
2638 | xassert (LFACEP (lface)); | |
2639 | check_lface_attrs (XVECTOR (lface)->contents); | |
2640 | } | |
2641 | } | |
2642 | ||
2643 | #else /* GLYPH_DEBUG == 0 */ | |
2644 | ||
2645 | #define check_lface_attrs(attrs) (void) 0 | |
2646 | #define check_lface(lface) (void) 0 | |
2647 | ||
2648 | #endif /* GLYPH_DEBUG == 0 */ | |
2649 | ||
2650 | ||
c7ae3284 GM |
2651 | /* Resolve face name FACE_NAME. If FACE_NAME Is a string, intern it |
2652 | to make it a symvol. If FACE_NAME is an alias for another face, | |
2653 | return that face's name. */ | |
2654 | ||
2655 | static Lisp_Object | |
2656 | resolve_face_name (face_name) | |
2657 | Lisp_Object face_name; | |
2658 | { | |
2659 | Lisp_Object aliased; | |
2660 | ||
2661 | if (STRINGP (face_name)) | |
2662 | face_name = intern (XSTRING (face_name)->data); | |
2663 | ||
2664 | for (;;) | |
2665 | { | |
2666 | aliased = Fget (face_name, Qface_alias); | |
2667 | if (NILP (aliased)) | |
2668 | break; | |
2669 | else | |
2670 | face_name = aliased; | |
2671 | } | |
2672 | ||
2673 | return face_name; | |
2674 | } | |
2675 | ||
2676 | ||
82641697 GM |
2677 | /* Return the face definition of FACE_NAME on frame F. F null means |
2678 | return the global definition. FACE_NAME may be a string or a | |
2679 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2680 | text properties; ediff uses that). If FACE_NAME is an alias for |
2681 | another face, return that face's definition. If SIGNAL_P is | |
2682 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2683 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2684 | name. */ | |
82641697 GM |
2685 | |
2686 | static INLINE Lisp_Object | |
2687 | lface_from_face_name (f, face_name, signal_p) | |
2688 | struct frame *f; | |
2689 | Lisp_Object face_name; | |
2690 | int signal_p; | |
2691 | { | |
c7ae3284 | 2692 | Lisp_Object lface; |
82641697 | 2693 | |
c7ae3284 | 2694 | face_name = resolve_face_name (face_name); |
92610620 | 2695 | |
82641697 GM |
2696 | if (f) |
2697 | lface = assq_no_quit (face_name, f->face_alist); | |
2698 | else | |
2699 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2700 | ||
2701 | if (CONSP (lface)) | |
2702 | lface = XCDR (lface); | |
2703 | else if (signal_p) | |
2704 | signal_error ("Invalid face", face_name); | |
2705 | ||
2706 | check_lface (lface); | |
2707 | return lface; | |
2708 | } | |
2709 | ||
2710 | ||
2711 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2712 | frame F. Store the resulting attributes in ATTRS which must point | |
2713 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2714 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2715 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2716 | ||
2717 | static INLINE int | |
2718 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2719 | struct frame *f; | |
2720 | Lisp_Object face_name; | |
2721 | Lisp_Object *attrs; | |
2722 | int signal_p; | |
2723 | { | |
2724 | Lisp_Object lface; | |
2725 | int success_p; | |
2726 | ||
2727 | lface = lface_from_face_name (f, face_name, signal_p); | |
2728 | if (!NILP (lface)) | |
2729 | { | |
2730 | bcopy (XVECTOR (lface)->contents, attrs, | |
2731 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2732 | success_p = 1; | |
2733 | } | |
2734 | else | |
2735 | success_p = 0; | |
2736 | ||
2737 | return success_p; | |
2738 | } | |
2739 | ||
2740 | ||
2741 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2742 | specified, i.e. are non-nil. */ | |
2743 | ||
2744 | static int | |
2745 | lface_fully_specified_p (attrs) | |
2746 | Lisp_Object *attrs; | |
2747 | { | |
2748 | int i; | |
2749 | ||
2750 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2751 | if (UNSPECIFIEDP (attrs[i])) | |
2752 | break; | |
2753 | ||
2754 | return i == LFACE_VECTOR_SIZE; | |
2755 | } | |
2756 | ||
2757 | ||
2758 | #ifdef HAVE_X_WINDOWS | |
2759 | ||
2760 | /* Set font-related attributes of Lisp face LFACE from XLFD font name | |
2761 | FONT_NAME. If FORCE_P is zero, set only unspecified attributes of | |
3221576b GM |
2762 | LFACE. MAY_FAIL_P non-zero means return 0 if FONT_NAME isn't a |
2763 | valid font name; otherwise this function tries to use a reasonable | |
2764 | default font. | |
2765 | ||
2766 | Ignore fields of FONT_NAME containing wildcards. Value is zero if | |
2767 | not successful because FONT_NAME was not in a valid format and | |
2768 | MAY_FAIL_P was non-zero. A valid format is one that is suitable | |
2769 | for split_font_name, see the comment there. */ | |
82641697 GM |
2770 | |
2771 | static int | |
2d764c78 | 2772 | set_lface_from_font_name (f, lface, font_name, force_p) |
82641697 GM |
2773 | struct frame *f; |
2774 | Lisp_Object lface; | |
2775 | char *font_name; | |
3221576b | 2776 | int force_p, may_fail_p; |
82641697 GM |
2777 | { |
2778 | struct font_name font; | |
2779 | char *buffer; | |
2780 | int pt; | |
2781 | int free_font_name_p = 0; | |
3221576b | 2782 | int have_font_p = 0; |
82641697 GM |
2783 | |
2784 | /* If FONT_NAME contains wildcards, use the first matching font. */ | |
2785 | if (index (font_name, '*') || index (font_name, '?')) | |
2786 | { | |
3221576b GM |
2787 | if (first_font_matching (f, font_name, &font)) |
2788 | free_font_name_p = have_font_p = 1; | |
82641697 GM |
2789 | } |
2790 | else | |
2791 | { | |
2792 | font.name = STRDUPA (font_name); | |
18df9369 GM |
2793 | if (split_font_name (f, &font, 1)) |
2794 | have_font_p = 1; | |
2795 | else | |
82641697 GM |
2796 | { |
2797 | /* The font name may be something like `6x13'. Make | |
2798 | sure we use the full name. */ | |
2799 | struct font_info *font_info; | |
2800 | ||
2801 | BLOCK_INPUT; | |
2802 | font_info = fs_load_font (f, FRAME_X_FONT_TABLE (f), | |
2803 | CHARSET_ASCII, font_name, -1); | |
3221576b GM |
2804 | if (font_info) |
2805 | { | |
2806 | font.name = STRDUPA (font_info->full_name); | |
2807 | split_font_name (f, &font, 1); | |
2808 | have_font_p = 1; | |
2809 | } | |
18df9369 | 2810 | UNBLOCK_INPUT; |
82641697 | 2811 | } |
82641697 | 2812 | |
3221576b GM |
2813 | /* If FONT_NAME is completely bogus try to use something reasonable |
2814 | if this function must succeed. Otherwise, give up. */ | |
2815 | if (!have_font_p) | |
2816 | { | |
2817 | if (may_fail_p) | |
2818 | return 0; | |
2819 | else if (first_font_matching (f, "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1", | |
2820 | &font) | |
2821 | || first_font_matching (f, "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1", | |
2822 | &font) | |
2823 | || first_font_matching (f, "-*-*-medium-r-normal-*-*-140-*-*-c-*-iso8859-1", | |
2824 | &font) | |
2825 | || first_font_matching (f, "-*-*-medium-r-*-*-*-*-*-*-c-*-iso8859-1", | |
2826 | &font) | |
2827 | || first_font_matching (f, "-*-fixed-*-*-*-*-*-140-*-*-c-*-iso8859-1", | |
2828 | &font) | |
2829 | || first_font_matching (f, "fixed", &font)) | |
2830 | free_font_name_p = 1; | |
2831 | else | |
2832 | abort (); | |
2833 | } | |
2834 | ||
2835 | ||
82641697 GM |
2836 | /* Set attributes only if unspecified, otherwise face defaults for |
2837 | new frames would never take effect. */ | |
2838 | ||
2839 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2840 | { | |
2841 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
2842 | + strlen (font.fields[XLFD_FOUNDRY]) | |
2843 | + 2); | |
2844 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
2845 | font.fields[XLFD_FAMILY]); | |
2846 | LFACE_FAMILY (lface) = build_string (buffer); | |
2847 | } | |
2848 | ||
2849 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2850 | { | |
2851 | pt = xlfd_point_size (f, &font); | |
2852 | xassert (pt > 0); | |
2853 | LFACE_HEIGHT (lface) = make_number (pt); | |
2854 | } | |
2855 | ||
2856 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
2857 | LFACE_SWIDTH (lface) = xlfd_symbolic_swidth (&font); | |
2858 | ||
2859 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
2860 | LFACE_WEIGHT (lface) = xlfd_symbolic_weight (&font); | |
2861 | ||
2862 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
2863 | LFACE_SLANT (lface) = xlfd_symbolic_slant (&font); | |
2864 | ||
2865 | if (free_font_name_p) | |
2866 | xfree (font.name); | |
2867 | ||
2868 | return 1; | |
2869 | } | |
2870 | ||
2871 | #endif /* HAVE_X_WINDOWS */ | |
2872 | ||
2873 | ||
2874 | /* Merge two Lisp face attribute vectors FROM and TO and store the | |
2875 | resulting attributes in TO. Every non-nil attribute of FROM | |
2876 | overrides the corresponding attribute of TO. */ | |
2877 | ||
2878 | static INLINE void | |
2879 | merge_face_vectors (from, to) | |
2880 | Lisp_Object *from, *to; | |
2881 | { | |
2882 | int i; | |
2883 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2884 | if (!UNSPECIFIEDP (from[i])) | |
2885 | to[i] = from[i]; | |
2886 | } | |
2887 | ||
2888 | ||
2889 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
2890 | is a face property, determine the resulting face attributes on | |
2891 | frame F, and store them in TO. PROP may be a single face | |
2892 | specification or a list of such specifications. Each face | |
2893 | specification can be | |
2894 | ||
2895 | 1. A symbol or string naming a Lisp face. | |
2896 | ||
2897 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
2898 | KEYWORD is a face attribute name, and value is an appropriate value | |
2899 | for that attribute. | |
2900 | ||
2901 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
2902 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
2903 | for compatibility with 20.2. | |
2904 | ||
2905 | Face specifications earlier in lists take precedence over later | |
2906 | specifications. */ | |
2907 | ||
2908 | static void | |
2909 | merge_face_vector_with_property (f, to, prop) | |
2910 | struct frame *f; | |
2911 | Lisp_Object *to; | |
2912 | Lisp_Object prop; | |
2913 | { | |
2914 | if (CONSP (prop)) | |
2915 | { | |
2916 | Lisp_Object first = XCAR (prop); | |
2917 | ||
2918 | if (EQ (first, Qforeground_color) | |
2919 | || EQ (first, Qbackground_color)) | |
2920 | { | |
2921 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
2922 | . COLOR). COLOR must be a string. */ | |
2923 | Lisp_Object color_name = XCDR (prop); | |
2924 | Lisp_Object color = first; | |
2925 | ||
2926 | if (STRINGP (color_name)) | |
2927 | { | |
2928 | if (EQ (color, Qforeground_color)) | |
2929 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
2930 | else | |
2931 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
2932 | } | |
2933 | else | |
1b8f7fbc | 2934 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
2935 | } |
2936 | else if (SYMBOLP (first) | |
2937 | && *XSYMBOL (first)->name->data == ':') | |
2938 | { | |
2939 | /* Assume this is the property list form. */ | |
2940 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
2941 | { | |
2942 | Lisp_Object keyword = XCAR (prop); | |
2943 | Lisp_Object value = XCAR (XCDR (prop)); | |
2944 | ||
2945 | if (EQ (keyword, QCfamily)) | |
2946 | { | |
2947 | if (STRINGP (value)) | |
2948 | to[LFACE_FAMILY_INDEX] = value; | |
2949 | else | |
1b8f7fbc | 2950 | add_to_log ("Illegal face font family", value, Qnil); |
82641697 GM |
2951 | } |
2952 | else if (EQ (keyword, QCheight)) | |
2953 | { | |
2954 | if (INTEGERP (value)) | |
2955 | to[LFACE_HEIGHT_INDEX] = value; | |
2956 | else | |
1b8f7fbc | 2957 | add_to_log ("Illegal face font height", value, Qnil); |
82641697 GM |
2958 | } |
2959 | else if (EQ (keyword, QCweight)) | |
2960 | { | |
2961 | if (SYMBOLP (value) | |
2962 | && face_numeric_weight (value) >= 0) | |
2963 | to[LFACE_WEIGHT_INDEX] = value; | |
2964 | else | |
1b8f7fbc | 2965 | add_to_log ("Illegal face weight", value, Qnil); |
82641697 GM |
2966 | } |
2967 | else if (EQ (keyword, QCslant)) | |
2968 | { | |
2969 | if (SYMBOLP (value) | |
2970 | && face_numeric_slant (value) >= 0) | |
2971 | to[LFACE_SLANT_INDEX] = value; | |
2972 | else | |
1b8f7fbc | 2973 | add_to_log ("Illegal face slant", value, Qnil); |
82641697 GM |
2974 | } |
2975 | else if (EQ (keyword, QCunderline)) | |
2976 | { | |
2977 | if (EQ (value, Qt) | |
2978 | || NILP (value) | |
2979 | || STRINGP (value)) | |
2980 | to[LFACE_UNDERLINE_INDEX] = value; | |
2981 | else | |
1b8f7fbc | 2982 | add_to_log ("Illegal face underline", value, Qnil); |
82641697 GM |
2983 | } |
2984 | else if (EQ (keyword, QCoverline)) | |
2985 | { | |
2986 | if (EQ (value, Qt) | |
2987 | || NILP (value) | |
2988 | || STRINGP (value)) | |
2989 | to[LFACE_OVERLINE_INDEX] = value; | |
2990 | else | |
1b8f7fbc | 2991 | add_to_log ("Illegal face overline", value, Qnil); |
82641697 GM |
2992 | } |
2993 | else if (EQ (keyword, QCstrike_through)) | |
2994 | { | |
2995 | if (EQ (value, Qt) | |
2996 | || NILP (value) | |
2997 | || STRINGP (value)) | |
2998 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
2999 | else | |
1b8f7fbc | 3000 | add_to_log ("Illegal face strike-through", value, Qnil); |
82641697 GM |
3001 | } |
3002 | else if (EQ (keyword, QCbox)) | |
3003 | { | |
3004 | if (EQ (value, Qt)) | |
3005 | value = make_number (1); | |
3006 | if (INTEGERP (value) | |
3007 | || STRINGP (value) | |
3008 | || CONSP (value) | |
3009 | || NILP (value)) | |
3010 | to[LFACE_BOX_INDEX] = value; | |
3011 | else | |
1b8f7fbc | 3012 | add_to_log ("Illegal face box", value, Qnil); |
82641697 GM |
3013 | } |
3014 | else if (EQ (keyword, QCinverse_video) | |
3015 | || EQ (keyword, QCreverse_video)) | |
3016 | { | |
3017 | if (EQ (value, Qt) || NILP (value)) | |
3018 | to[LFACE_INVERSE_INDEX] = value; | |
3019 | else | |
1b8f7fbc | 3020 | add_to_log ("Illegal face inverse-video", value, Qnil); |
82641697 GM |
3021 | } |
3022 | else if (EQ (keyword, QCforeground)) | |
3023 | { | |
3024 | if (STRINGP (value)) | |
3025 | to[LFACE_FOREGROUND_INDEX] = value; | |
3026 | else | |
1b8f7fbc | 3027 | add_to_log ("Illegal face foreground", value, Qnil); |
82641697 GM |
3028 | } |
3029 | else if (EQ (keyword, QCbackground)) | |
3030 | { | |
3031 | if (STRINGP (value)) | |
3032 | to[LFACE_BACKGROUND_INDEX] = value; | |
3033 | else | |
1b8f7fbc | 3034 | add_to_log ("Illegal face background", value, Qnil); |
82641697 GM |
3035 | } |
3036 | else if (EQ (keyword, QCstipple)) | |
3037 | { | |
3038 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3039 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3040 | if (!NILP (pixmap_p)) |
3041 | to[LFACE_STIPPLE_INDEX] = value; | |
3042 | else | |
1b8f7fbc | 3043 | add_to_log ("Illegal face stipple", value, Qnil); |
82641697 GM |
3044 | #endif |
3045 | } | |
3046 | else if (EQ (keyword, QCwidth)) | |
3047 | { | |
3048 | if (SYMBOLP (value) | |
3049 | && face_numeric_swidth (value) >= 0) | |
3050 | to[LFACE_SWIDTH_INDEX] = value; | |
3051 | else | |
1b8f7fbc | 3052 | add_to_log ("Illegal face width", value, Qnil); |
82641697 GM |
3053 | } |
3054 | else | |
1b8f7fbc | 3055 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3056 | keyword, Qnil); |
82641697 GM |
3057 | |
3058 | prop = XCDR (XCDR (prop)); | |
3059 | } | |
3060 | } | |
3061 | else | |
3062 | { | |
3063 | /* This is a list of face specs. Specifications at the | |
3064 | beginning of the list take precedence over later | |
3065 | specifications, so we have to merge starting with the | |
3066 | last specification. */ | |
3067 | Lisp_Object next = XCDR (prop); | |
3068 | if (!NILP (next)) | |
3069 | merge_face_vector_with_property (f, to, next); | |
3070 | merge_face_vector_with_property (f, to, first); | |
3071 | } | |
3072 | } | |
3073 | else | |
3074 | { | |
3075 | /* PROP ought to be a face name. */ | |
3076 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3077 | if (NILP (lface)) | |
1b8f7fbc | 3078 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 GM |
3079 | else |
3080 | merge_face_vectors (XVECTOR (lface)->contents, to); | |
3081 | } | |
3082 | } | |
3083 | ||
3084 | ||
3085 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3086 | Sinternal_make_lisp_face, 1, 2, 0, | |
3087 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3088 | If FACE was not known as a face before, create a new one.\n\ | |
3089 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3090 | for that frame. Otherwise operate on the global face definition.\n\ | |
3091 | Value is a vector of face attributes.") | |
3092 | (face, frame) | |
3093 | Lisp_Object face, frame; | |
3094 | { | |
3095 | Lisp_Object global_lface, lface; | |
3096 | struct frame *f; | |
3097 | int i; | |
3098 | ||
3099 | CHECK_SYMBOL (face, 0); | |
3100 | global_lface = lface_from_face_name (NULL, face, 0); | |
3101 | ||
3102 | if (!NILP (frame)) | |
3103 | { | |
3104 | CHECK_LIVE_FRAME (frame, 1); | |
3105 | f = XFRAME (frame); | |
3106 | lface = lface_from_face_name (f, face, 0); | |
3107 | } | |
3108 | else | |
3109 | f = NULL, lface = Qnil; | |
3110 | ||
3111 | /* Add a global definition if there is none. */ | |
3112 | if (NILP (global_lface)) | |
3113 | { | |
3114 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3115 | Qunspecified); | |
3116 | XVECTOR (global_lface)->contents[0] = Qface; | |
3117 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), | |
3118 | Vface_new_frame_defaults); | |
3119 | ||
3120 | /* Assign the new Lisp face a unique ID. The mapping from Lisp | |
3121 | face id to Lisp face is given by the vector lface_id_to_name. | |
3122 | The mapping from Lisp face to Lisp face id is given by the | |
3123 | property `face' of the Lisp face name. */ | |
3124 | if (next_lface_id == lface_id_to_name_size) | |
3125 | { | |
3126 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3127 | int sz = new_size * sizeof *lface_id_to_name; | |
3128 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3129 | lface_id_to_name_size = new_size; | |
3130 | } | |
3131 | ||
3132 | lface_id_to_name[next_lface_id] = face; | |
3133 | Fput (face, Qface, make_number (next_lface_id)); | |
3134 | ++next_lface_id; | |
3135 | } | |
3136 | else if (f == NULL) | |
3137 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3138 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
3139 | ||
3140 | /* Add a frame-local definition. */ | |
3141 | if (f) | |
3142 | { | |
3143 | if (NILP (lface)) | |
3144 | { | |
3145 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3146 | Qunspecified); | |
3147 | XVECTOR (lface)->contents[0] = Qface; | |
3148 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3149 | } | |
3150 | else | |
3151 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3152 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3153 | } | |
3154 | else | |
3155 | lface = global_lface; | |
3156 | ||
3157 | xassert (LFACEP (lface)); | |
3158 | check_lface (lface); | |
3159 | return lface; | |
3160 | } | |
3161 | ||
3162 | ||
3163 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3164 | Sinternal_lisp_face_p, 1, 2, 0, | |
3165 | "Return non-nil if FACE names a face.\n\ | |
3166 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3167 | existence of a frame-local face with name FACE on that frame.\n\ | |
3168 | Otherwise check for the existence of a global face.") | |
3169 | (face, frame) | |
3170 | Lisp_Object face, frame; | |
3171 | { | |
3172 | Lisp_Object lface; | |
3173 | ||
3174 | if (!NILP (frame)) | |
3175 | { | |
3176 | CHECK_LIVE_FRAME (frame, 1); | |
3177 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3178 | } | |
3179 | else | |
3180 | lface = lface_from_face_name (NULL, face, 0); | |
3181 | ||
3182 | return lface; | |
3183 | } | |
3184 | ||
3185 | ||
3186 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3187 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3188 | "Copy face FROM to TO.\n\ | |
3189 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3190 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3191 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3192 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3193 | \n\ | |
3194 | Value is TO.") | |
3195 | (from, to, frame, new_frame) | |
3196 | Lisp_Object from, to, frame, new_frame; | |
3197 | { | |
3198 | Lisp_Object lface, copy; | |
3199 | ||
3200 | CHECK_SYMBOL (from, 0); | |
3201 | CHECK_SYMBOL (to, 1); | |
3202 | if (NILP (new_frame)) | |
3203 | new_frame = frame; | |
3204 | ||
3205 | if (EQ (frame, Qt)) | |
3206 | { | |
3207 | /* Copy global definition of FROM. We don't make copies of | |
3208 | strings etc. because 20.2 didn't do it either. */ | |
3209 | lface = lface_from_face_name (NULL, from, 1); | |
3210 | copy = Finternal_make_lisp_face (to, Qnil); | |
3211 | } | |
3212 | else | |
3213 | { | |
3214 | /* Copy frame-local definition of FROM. */ | |
3215 | CHECK_LIVE_FRAME (frame, 2); | |
3216 | CHECK_LIVE_FRAME (new_frame, 3); | |
3217 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3218 | copy = Finternal_make_lisp_face (to, new_frame); | |
3219 | } | |
3220 | ||
3221 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, | |
3222 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
3223 | ||
3224 | return to; | |
3225 | } | |
3226 | ||
3227 | ||
3228 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3229 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3230 | "Set attribute ATTR of FACE to VALUE.\n\ | |
3231 | If optional argument FRAME is given, set the face attribute of face FACE\n\ | |
3232 | on that frame. If FRAME is t, set the attribute of the default for face\n\ | |
3233 | FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ | |
3234 | frame.") | |
3235 | (face, attr, value, frame) | |
3236 | Lisp_Object face, attr, value, frame; | |
3237 | { | |
3238 | Lisp_Object lface; | |
3239 | Lisp_Object old_value = Qnil; | |
3240 | int font_related_attr_p = 0; | |
3241 | ||
3242 | CHECK_SYMBOL (face, 0); | |
3243 | CHECK_SYMBOL (attr, 1); | |
3244 | ||
c7ae3284 GM |
3245 | face = resolve_face_name (face); |
3246 | ||
82641697 GM |
3247 | /* Set lface to the Lisp attribute vector of FACE. */ |
3248 | if (EQ (frame, Qt)) | |
3249 | lface = lface_from_face_name (NULL, face, 1); | |
3250 | else | |
3251 | { | |
3252 | if (NILP (frame)) | |
c0617987 | 3253 | frame = selected_frame; |
82641697 GM |
3254 | |
3255 | CHECK_LIVE_FRAME (frame, 3); | |
3256 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3257 | ||
3258 | /* If a frame-local face doesn't exist yet, create one. */ | |
3259 | if (NILP (lface)) | |
3260 | lface = Finternal_make_lisp_face (face, frame); | |
3261 | } | |
3262 | ||
3263 | if (EQ (attr, QCfamily)) | |
3264 | { | |
3265 | if (!UNSPECIFIEDP (value)) | |
3266 | { | |
3267 | CHECK_STRING (value, 3); | |
3268 | if (XSTRING (value)->size == 0) | |
3269 | signal_error ("Invalid face family", value); | |
3270 | } | |
3271 | old_value = LFACE_FAMILY (lface); | |
3272 | LFACE_FAMILY (lface) = value; | |
3273 | font_related_attr_p = 1; | |
3274 | } | |
3275 | else if (EQ (attr, QCheight)) | |
3276 | { | |
3277 | if (!UNSPECIFIEDP (value)) | |
3278 | { | |
3279 | CHECK_NUMBER (value, 3); | |
3280 | if (XINT (value) <= 0) | |
3281 | signal_error ("Invalid face height", value); | |
3282 | } | |
3283 | old_value = LFACE_HEIGHT (lface); | |
3284 | LFACE_HEIGHT (lface) = value; | |
3285 | font_related_attr_p = 1; | |
3286 | } | |
3287 | else if (EQ (attr, QCweight)) | |
3288 | { | |
3289 | if (!UNSPECIFIEDP (value)) | |
3290 | { | |
3291 | CHECK_SYMBOL (value, 3); | |
3292 | if (face_numeric_weight (value) < 0) | |
3293 | signal_error ("Invalid face weight", value); | |
3294 | } | |
3295 | old_value = LFACE_WEIGHT (lface); | |
3296 | LFACE_WEIGHT (lface) = value; | |
3297 | font_related_attr_p = 1; | |
3298 | } | |
3299 | else if (EQ (attr, QCslant)) | |
3300 | { | |
3301 | if (!UNSPECIFIEDP (value)) | |
3302 | { | |
3303 | CHECK_SYMBOL (value, 3); | |
3304 | if (face_numeric_slant (value) < 0) | |
3305 | signal_error ("Invalid face slant", value); | |
3306 | } | |
3307 | old_value = LFACE_SLANT (lface); | |
3308 | LFACE_SLANT (lface) = value; | |
3309 | font_related_attr_p = 1; | |
3310 | } | |
3311 | else if (EQ (attr, QCunderline)) | |
3312 | { | |
3313 | if (!UNSPECIFIEDP (value)) | |
3314 | if ((SYMBOLP (value) | |
3315 | && !EQ (value, Qt) | |
3316 | && !EQ (value, Qnil)) | |
3317 | /* Underline color. */ | |
3318 | || (STRINGP (value) | |
3319 | && XSTRING (value)->size == 0)) | |
3320 | signal_error ("Invalid face underline", value); | |
3321 | ||
3322 | old_value = LFACE_UNDERLINE (lface); | |
3323 | LFACE_UNDERLINE (lface) = value; | |
3324 | } | |
3325 | else if (EQ (attr, QCoverline)) | |
3326 | { | |
3327 | if (!UNSPECIFIEDP (value)) | |
3328 | if ((SYMBOLP (value) | |
3329 | && !EQ (value, Qt) | |
3330 | && !EQ (value, Qnil)) | |
3331 | /* Overline color. */ | |
3332 | || (STRINGP (value) | |
3333 | && XSTRING (value)->size == 0)) | |
3334 | signal_error ("Invalid face overline", value); | |
3335 | ||
3336 | old_value = LFACE_OVERLINE (lface); | |
3337 | LFACE_OVERLINE (lface) = value; | |
3338 | } | |
3339 | else if (EQ (attr, QCstrike_through)) | |
3340 | { | |
3341 | if (!UNSPECIFIEDP (value)) | |
3342 | if ((SYMBOLP (value) | |
3343 | && !EQ (value, Qt) | |
3344 | && !EQ (value, Qnil)) | |
3345 | /* Strike-through color. */ | |
3346 | || (STRINGP (value) | |
3347 | && XSTRING (value)->size == 0)) | |
3348 | signal_error ("Invalid face strike-through", value); | |
3349 | ||
3350 | old_value = LFACE_STRIKE_THROUGH (lface); | |
3351 | LFACE_STRIKE_THROUGH (lface) = value; | |
3352 | } | |
3353 | else if (EQ (attr, QCbox)) | |
3354 | { | |
3355 | int valid_p; | |
3356 | ||
3357 | /* Allow t meaning a simple box of width 1 in foreground color | |
3358 | of the face. */ | |
3359 | if (EQ (value, Qt)) | |
3360 | value = make_number (1); | |
3361 | ||
3362 | if (UNSPECIFIEDP (value)) | |
3363 | valid_p = 1; | |
3364 | else if (NILP (value)) | |
3365 | valid_p = 1; | |
3366 | else if (INTEGERP (value)) | |
3367 | valid_p = XINT (value) > 0; | |
3368 | else if (STRINGP (value)) | |
3369 | valid_p = XSTRING (value)->size > 0; | |
3370 | else if (CONSP (value)) | |
3371 | { | |
3372 | Lisp_Object tem; | |
3373 | ||
3374 | tem = value; | |
3375 | while (CONSP (tem)) | |
3376 | { | |
3377 | Lisp_Object k, v; | |
3378 | ||
3379 | k = XCAR (tem); | |
3380 | tem = XCDR (tem); | |
3381 | if (!CONSP (tem)) | |
3382 | break; | |
3383 | v = XCAR (tem); | |
3384 | tem = XCDR (tem); | |
3385 | ||
3386 | if (EQ (k, QCline_width)) | |
3387 | { | |
3388 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3389 | break; | |
3390 | } | |
3391 | else if (EQ (k, QCcolor)) | |
3392 | { | |
3393 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3394 | break; | |
3395 | } | |
3396 | else if (EQ (k, QCstyle)) | |
3397 | { | |
3398 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3399 | break; | |
3400 | } | |
3401 | else | |
3402 | break; | |
3403 | } | |
3404 | ||
3405 | valid_p = NILP (tem); | |
3406 | } | |
3407 | else | |
3408 | valid_p = 0; | |
3409 | ||
3410 | if (!valid_p) | |
3411 | signal_error ("Invalid face box", value); | |
3412 | ||
3413 | old_value = LFACE_BOX (lface); | |
3414 | LFACE_BOX (lface) = value; | |
3415 | } | |
3416 | else if (EQ (attr, QCinverse_video) | |
3417 | || EQ (attr, QCreverse_video)) | |
3418 | { | |
3419 | if (!UNSPECIFIEDP (value)) | |
3420 | { | |
3421 | CHECK_SYMBOL (value, 3); | |
3422 | if (!EQ (value, Qt) && !NILP (value)) | |
3423 | signal_error ("Invalid inverse-video face attribute value", value); | |
3424 | } | |
3425 | old_value = LFACE_INVERSE (lface); | |
3426 | LFACE_INVERSE (lface) = value; | |
3427 | } | |
3428 | else if (EQ (attr, QCforeground)) | |
3429 | { | |
3430 | if (!UNSPECIFIEDP (value)) | |
3431 | { | |
3432 | /* Don't check for valid color names here because it depends | |
3433 | on the frame (display) whether the color will be valid | |
3434 | when the face is realized. */ | |
3435 | CHECK_STRING (value, 3); | |
3436 | if (XSTRING (value)->size == 0) | |
3437 | signal_error ("Empty foreground color value", value); | |
3438 | } | |
3439 | old_value = LFACE_FOREGROUND (lface); | |
3440 | LFACE_FOREGROUND (lface) = value; | |
3441 | } | |
3442 | else if (EQ (attr, QCbackground)) | |
3443 | { | |
3444 | if (!UNSPECIFIEDP (value)) | |
3445 | { | |
3446 | /* Don't check for valid color names here because it depends | |
3447 | on the frame (display) whether the color will be valid | |
3448 | when the face is realized. */ | |
3449 | CHECK_STRING (value, 3); | |
3450 | if (XSTRING (value)->size == 0) | |
3451 | signal_error ("Empty background color value", value); | |
3452 | } | |
3453 | old_value = LFACE_BACKGROUND (lface); | |
3454 | LFACE_BACKGROUND (lface) = value; | |
3455 | } | |
3456 | else if (EQ (attr, QCstipple)) | |
3457 | { | |
3458 | #ifdef HAVE_X_WINDOWS | |
3459 | if (!UNSPECIFIEDP (value) | |
3460 | && !NILP (value) | |
fef04523 | 3461 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3462 | signal_error ("Invalid stipple attribute", value); |
3463 | old_value = LFACE_STIPPLE (lface); | |
3464 | LFACE_STIPPLE (lface) = value; | |
3465 | #endif /* HAVE_X_WINDOWS */ | |
3466 | } | |
3467 | else if (EQ (attr, QCwidth)) | |
3468 | { | |
3469 | if (!UNSPECIFIEDP (value)) | |
3470 | { | |
3471 | CHECK_SYMBOL (value, 3); | |
3472 | if (face_numeric_swidth (value) < 0) | |
3473 | signal_error ("Invalid face width", value); | |
3474 | } | |
3475 | old_value = LFACE_SWIDTH (lface); | |
3476 | LFACE_SWIDTH (lface) = value; | |
3477 | font_related_attr_p = 1; | |
3478 | } | |
3479 | else if (EQ (attr, QCfont)) | |
3480 | { | |
3481 | #ifdef HAVE_X_WINDOWS | |
3482 | /* Set font-related attributes of the Lisp face from an | |
3483 | XLFD font name. */ | |
3484 | struct frame *f; | |
3485 | ||
3486 | CHECK_STRING (value, 3); | |
3487 | if (EQ (frame, Qt)) | |
c0617987 | 3488 | f = SELECTED_FRAME (); |
82641697 GM |
3489 | else |
3490 | f = check_x_frame (frame); | |
3491 | ||
3221576b | 3492 | if (!set_lface_from_font_name (f, lface, XSTRING (value)->data, 1, 1)) |
82641697 GM |
3493 | signal_error ("Invalid font name", value); |
3494 | ||
3495 | font_related_attr_p = 1; | |
3496 | #endif /* HAVE_X_WINDOWS */ | |
3497 | } | |
3498 | else if (EQ (attr, QCbold)) | |
3499 | { | |
3500 | old_value = LFACE_WEIGHT (lface); | |
3501 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3502 | font_related_attr_p = 1; | |
3503 | } | |
3504 | else if (EQ (attr, QCitalic)) | |
3505 | { | |
3506 | old_value = LFACE_SLANT (lface); | |
3507 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3508 | font_related_attr_p = 1; | |
3509 | } | |
3510 | else | |
3511 | signal_error ("Invalid face attribute name", attr); | |
3512 | ||
3513 | /* Changing a named face means that all realized faces depending on | |
3514 | that face are invalid. Since we cannot tell which realized faces | |
3515 | depend on the face, make sure they are all removed. This is done | |
3516 | by incrementing face_change_count. The next call to | |
3517 | init_iterator will then free realized faces. */ | |
3518 | if (!EQ (frame, Qt) | |
3519 | && (EQ (attr, QCfont) | |
3520 | || NILP (Fequal (old_value, value)))) | |
3521 | { | |
3522 | ++face_change_count; | |
3523 | ++windows_or_buffers_changed; | |
3524 | } | |
3525 | ||
3526 | #ifdef HAVE_X_WINDOWS | |
8bd201d6 GM |
3527 | |
3528 | if (!EQ (frame, Qt) | |
3529 | && !UNSPECIFIEDP (value) | |
82641697 | 3530 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3531 | { |
3532 | Lisp_Object param; | |
3533 | ||
3534 | param = Qnil; | |
3535 | ||
3536 | if (EQ (face, Qdefault)) | |
3537 | { | |
3538 | /* Changed font-related attributes of the `default' face are | |
3539 | reflected in changed `font' frame parameters. */ | |
3540 | if (font_related_attr_p | |
3541 | && lface_fully_specified_p (XVECTOR (lface)->contents)) | |
3542 | set_font_frame_param (frame, lface); | |
3543 | else if (EQ (attr, QCforeground)) | |
3544 | param = Qforeground_color; | |
3545 | else if (EQ (attr, QCbackground)) | |
3546 | param = Qbackground_color; | |
3547 | } | |
3548 | else if (EQ (face, Qscroll_bar)) | |
3549 | { | |
3550 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3551 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3552 | if (EQ (attr, QCforeground)) | |
3553 | param = Qscroll_bar_foreground; | |
3554 | else if (EQ (attr, QCbackground)) | |
3555 | param = Qscroll_bar_background; | |
3556 | } | |
3557 | else if (EQ (face, Qborder)) | |
3558 | { | |
3559 | /* Changing background color of `border' sets frame parameter | |
3560 | `border-color'. */ | |
3561 | if (EQ (attr, QCbackground)) | |
3562 | param = Qborder_color; | |
3563 | } | |
3564 | else if (EQ (face, Qcursor)) | |
3565 | { | |
3566 | /* Changing background color of `cursor' sets frame parameter | |
3567 | `cursor-color'. */ | |
3568 | if (EQ (attr, QCbackground)) | |
3569 | param = Qcursor_color; | |
3570 | } | |
3571 | else if (EQ (face, Qmouse)) | |
3572 | { | |
3573 | /* Changing background color of `mouse' sets frame parameter | |
3574 | `mouse-color'. */ | |
3575 | if (EQ (attr, QCbackground)) | |
3576 | param = Qmouse_color; | |
3577 | } | |
3578 | ||
3579 | if (SYMBOLP (param)) | |
3580 | Fmodify_frame_parameters (frame, Fcons (Fcons (param, value), Qnil)); | |
3581 | } | |
82641697 GM |
3582 | |
3583 | #endif /* HAVE_X_WINDOWS */ | |
3584 | ||
3585 | return face; | |
3586 | } | |
3587 | ||
3588 | ||
3589 | #ifdef HAVE_X_WINDOWS | |
3590 | ||
3591 | /* Set the `font' frame parameter of FRAME according to `default' face | |
3592 | attributes LFACE. */ | |
3593 | ||
3594 | static void | |
3595 | set_font_frame_param (frame, lface) | |
3596 | Lisp_Object frame, lface; | |
3597 | { | |
3598 | struct frame *f = XFRAME (frame); | |
3599 | Lisp_Object frame_font; | |
3600 | int fontset; | |
3601 | char *font; | |
3602 | ||
3603 | /* Get FRAME's font parameter. */ | |
3604 | frame_font = Fassq (Qfont, f->param_alist); | |
3605 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
3606 | frame_font = XCDR (frame_font); | |
3607 | ||
3608 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
3609 | if (fontset >= 0) | |
3610 | { | |
3611 | /* Frame parameter is a fontset name. Modify the fontset so | |
3612 | that all its fonts reflect face attributes LFACE. */ | |
3613 | int charset; | |
3614 | struct fontset_info *fontset_info; | |
3615 | ||
3616 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
3617 | ||
3618 | for (charset = 0; charset < MAX_CHARSET; ++charset) | |
3619 | if (fontset_info->fontname[charset]) | |
3620 | { | |
3621 | font = choose_face_fontset_font (f, XVECTOR (lface)->contents, | |
3622 | fontset, charset); | |
3623 | Fset_fontset_font (frame_font, CHARSET_SYMBOL (charset), | |
3624 | build_string (font), frame); | |
3625 | xfree (font); | |
3626 | } | |
3627 | } | |
3628 | else | |
3629 | { | |
3630 | /* Frame parameter is an X font name. I believe this can | |
3631 | only happen in unibyte mode. */ | |
3632 | font = choose_face_font (f, XVECTOR (lface)->contents, | |
3633 | -1, Vface_default_registry); | |
3634 | if (font) | |
3635 | { | |
3636 | store_frame_param (f, Qfont, build_string (font)); | |
3637 | xfree (font); | |
3638 | } | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | ||
8bd201d6 GM |
3643 | /* Update the corresponding face when frame parameter PARAM on frame F |
3644 | has been assigned the value NEW_VALUE. */ | |
3645 | ||
3646 | void | |
3647 | update_face_from_frame_parameter (f, param, new_value) | |
3648 | struct frame *f; | |
3649 | Lisp_Object param, new_value; | |
3650 | { | |
3651 | Lisp_Object lface; | |
3652 | ||
3653 | /* If there are no faces yet, give up. This is the case when called | |
3654 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 3655 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
3656 | if (NILP (f->face_alist)) |
3657 | return; | |
3658 | ||
3659 | if (EQ (param, Qforeground_color)) | |
3660 | { | |
3661 | lface = lface_from_face_name (f, Qdefault, 1); | |
3662 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
3663 | ? new_value : Qunspecified); | |
3664 | realize_basic_faces (f); | |
3665 | } | |
3666 | else if (EQ (param, Qbackground_color)) | |
3667 | { | |
92610620 GM |
3668 | Lisp_Object frame; |
3669 | ||
3670 | /* Changing the background color might change the background | |
3671 | mode, so that we have to load new defface specs. Call | |
3672 | frame-update-face-colors to do that. */ | |
3673 | XSETFRAME (frame, f); | |
3674 | call1 (Qframe_update_face_colors, frame); | |
3675 | ||
8bd201d6 GM |
3676 | lface = lface_from_face_name (f, Qdefault, 1); |
3677 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3678 | ? new_value : Qunspecified); | |
3679 | realize_basic_faces (f); | |
3680 | } | |
3681 | if (EQ (param, Qborder_color)) | |
3682 | { | |
3683 | lface = lface_from_face_name (f, Qborder, 1); | |
3684 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3685 | ? new_value : Qunspecified); | |
3686 | } | |
3687 | else if (EQ (param, Qcursor_color)) | |
3688 | { | |
3689 | lface = lface_from_face_name (f, Qcursor, 1); | |
3690 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3691 | ? new_value : Qunspecified); | |
3692 | } | |
3693 | else if (EQ (param, Qmouse_color)) | |
3694 | { | |
3695 | lface = lface_from_face_name (f, Qmouse, 1); | |
3696 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3697 | ? new_value : Qunspecified); | |
3698 | } | |
3699 | } | |
3700 | ||
3701 | ||
82641697 GM |
3702 | /* Get the value of X resource RESOURCE, class CLASS for the display |
3703 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3704 | doesn't take a frame argument. */ | |
3705 | ||
3706 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
3707 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
3708 | (resource, class, frame) | |
3709 | Lisp_Object resource, class, frame; | |
3710 | { | |
3711 | Lisp_Object value; | |
3712 | CHECK_STRING (resource, 0); | |
3713 | CHECK_STRING (class, 1); | |
3714 | CHECK_LIVE_FRAME (frame, 2); | |
3715 | BLOCK_INPUT; | |
3716 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3717 | resource, class, Qnil, Qnil); | |
3718 | UNBLOCK_INPUT; | |
3719 | return value; | |
3720 | } | |
3721 | ||
3722 | ||
3723 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3724 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3725 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3726 | error; if SIGNAL_P is zero, return 0. */ | |
3727 | ||
3728 | static Lisp_Object | |
3729 | face_boolean_x_resource_value (value, signal_p) | |
3730 | Lisp_Object value; | |
3731 | int signal_p; | |
3732 | { | |
3733 | Lisp_Object result = make_number (0); | |
3734 | ||
3735 | xassert (STRINGP (value)); | |
3736 | ||
3737 | if (xstricmp (XSTRING (value)->data, "on") == 0 | |
3738 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
3739 | result = Qt; | |
3740 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
3741 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
3742 | result = Qnil; | |
3743 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3744 | result = Qunspecified; | |
3745 | else if (signal_p) | |
3746 | signal_error ("Invalid face attribute value from X resource", value); | |
3747 | ||
3748 | return result; | |
3749 | } | |
3750 | ||
3751 | ||
3752 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3753 | Finternal_set_lisp_face_attribute_from_resource, | |
3754 | Sinternal_set_lisp_face_attribute_from_resource, | |
3755 | 3, 4, 0, "") | |
3756 | (face, attr, value, frame) | |
3757 | Lisp_Object face, attr, value, frame; | |
3758 | { | |
3759 | CHECK_SYMBOL (face, 0); | |
3760 | CHECK_SYMBOL (attr, 1); | |
3761 | CHECK_STRING (value, 2); | |
3762 | ||
3763 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3764 | value = Qunspecified; | |
3765 | else if (EQ (attr, QCheight)) | |
3766 | { | |
3767 | value = Fstring_to_number (value, make_number (10)); | |
3768 | if (XINT (value) <= 0) | |
3769 | signal_error ("Invalid face height from X resource", value); | |
3770 | } | |
3771 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3772 | value = face_boolean_x_resource_value (value, 1); | |
3773 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
3774 | value = intern (XSTRING (value)->data); | |
3775 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
3776 | value = face_boolean_x_resource_value (value, 1); | |
3777 | else if (EQ (attr, QCunderline) | |
3778 | || EQ (attr, QCoverline) | |
3779 | || EQ (attr, QCstrike_through) | |
3780 | || EQ (attr, QCbox)) | |
3781 | { | |
3782 | Lisp_Object boolean_value; | |
3783 | ||
3784 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3785 | VALUE does NOT specify a color. */ | |
3786 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3787 | if (SYMBOLP (boolean_value)) | |
3788 | value = boolean_value; | |
3789 | } | |
3790 | ||
3791 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3792 | } | |
3793 | ||
3794 | ||
c7ae3284 GM |
3795 | \f |
3796 | /*********************************************************************** | |
3797 | Menu face | |
3798 | ***********************************************************************/ | |
3799 | ||
3800 | #ifdef USE_X_TOOLKIT | |
3801 | ||
3802 | /* Structure used to pass X resources to functions called via | |
3803 | XtApplyToWidgets. */ | |
3804 | ||
3805 | struct x_resources | |
3806 | { | |
3807 | Arg *av; | |
3808 | int ac; | |
3809 | }; | |
3810 | ||
3811 | ||
3812 | #ifdef USE_MOTIF | |
3813 | ||
3814 | static void xm_apply_resources P_ ((Widget, XtPointer)); | |
3815 | static void xm_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
3816 | ||
3817 | ||
3818 | /* Set widget W's X resources from P which points to an x_resources | |
3819 | structure. If W is a cascade button, apply resources to W's | |
3820 | submenu. */ | |
3821 | ||
3822 | static void | |
3823 | xm_apply_resources (w, p) | |
3824 | Widget w; | |
3825 | XtPointer p; | |
3826 | { | |
3827 | Widget submenu = 0; | |
3828 | struct x_resources *res = (struct x_resources *) p; | |
3829 | ||
3830 | XtSetValues (w, res->av, res->ac); | |
3831 | XtVaGetValues (w, XmNsubMenuId, &submenu, NULL); | |
3832 | if (submenu) | |
3833 | { | |
3834 | XtSetValues (submenu, res->av, res->ac); | |
3835 | XtApplyToWidgets (submenu, xm_apply_resources, p); | |
3836 | } | |
3837 | } | |
3838 | ||
3839 | ||
3840 | /* Set X resources of menu-widget WIDGET on frame F from face `menu'. | |
3841 | This is the LessTif/Motif version. As of LessTif 0.88 it has the | |
3842 | following problems: | |
3843 | ||
3844 | 1. Setting the XmNfontList resource leads to an infinite loop | |
3845 | somewhere in LessTif. */ | |
3846 | ||
3847 | static void | |
3848 | xm_set_menu_resources_from_menu_face (f, widget) | |
3849 | struct frame *f; | |
3850 | Widget widget; | |
3851 | { | |
3852 | struct face *face; | |
3853 | Lisp_Object lface; | |
3854 | Arg av[3]; | |
3855 | int ac = 0; | |
3856 | XmFontList fl = 0; | |
3857 | ||
3858 | lface = lface_from_face_name (f, Qmenu, 1); | |
3859 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
3860 | ||
3861 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
3862 | { | |
3863 | XtSetArg (av[ac], XmNforeground, face->foreground); | |
3864 | ++ac; | |
3865 | } | |
3866 | ||
3867 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
3868 | { | |
3869 | XtSetArg (av[ac], XmNbackground, face->background); | |
3870 | ++ac; | |
3871 | } | |
3872 | ||
3873 | /* If any font-related attribute of `menu' is set, set the font. */ | |
3874 | if (face->font | |
3875 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
3876 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
3877 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3878 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
3879 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
3880 | { | |
3881 | #if 0 /* Setting the font leads to an infinite loop somewhere | |
3882 | in LessTif during geometry computation. */ | |
3883 | XmFontListEntry fe; | |
3884 | fe = XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT, face->font); | |
3885 | fl = XmFontListAppendEntry (NULL, fe); | |
3886 | XtSetArg (av[ac], XmNfontList, fl); | |
3887 | ++ac; | |
3888 | #endif | |
3889 | } | |
3890 | ||
3891 | xassert (ac <= sizeof av / sizeof *av); | |
3892 | ||
3893 | if (ac) | |
3894 | { | |
3895 | struct x_resources res; | |
3896 | ||
3897 | XtSetValues (widget, av, ac); | |
3898 | res.av = av, res.ac = ac; | |
3899 | XtApplyToWidgets (widget, xm_apply_resources, &res); | |
3900 | if (fl) | |
3901 | XmFontListFree (fl); | |
3902 | } | |
3903 | } | |
3904 | ||
3905 | ||
3906 | #endif /* USE_MOTIF */ | |
3907 | ||
3908 | #ifdef USE_LUCID | |
3909 | ||
3910 | static void xl_apply_resources P_ ((Widget, XtPointer)); | |
3911 | static void xl_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
3912 | ||
3913 | ||
3914 | /* Set widget W's resources from P which points to an x_resources | |
3915 | structure. */ | |
3916 | ||
3917 | static void | |
3918 | xl_apply_resources (widget, p) | |
3919 | Widget widget; | |
3920 | XtPointer p; | |
3921 | { | |
3922 | struct x_resources *res = (struct x_resources *) p; | |
3923 | XtSetValues (widget, res->av, res->ac); | |
3924 | } | |
3925 | ||
3926 | ||
3927 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. | |
3928 | This is the Lucid version. */ | |
3929 | ||
3930 | static void | |
3931 | xl_set_menu_resources_from_menu_face (f, widget) | |
3932 | struct frame *f; | |
3933 | Widget widget; | |
3934 | { | |
3935 | struct face *face; | |
3936 | Lisp_Object lface; | |
3937 | Arg av[3]; | |
3938 | int ac = 0; | |
3939 | ||
3940 | lface = lface_from_face_name (f, Qmenu, 1); | |
3941 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
3942 | ||
3943 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
3944 | { | |
3945 | XtSetArg (av[ac], XtNforeground, face->foreground); | |
3946 | ++ac; | |
3947 | } | |
3948 | ||
3949 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
3950 | { | |
3951 | XtSetArg (av[ac], XtNbackground, face->background); | |
3952 | ++ac; | |
3953 | } | |
3954 | ||
3955 | if (face->font | |
3956 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
3957 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
3958 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3959 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
3960 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
3961 | { | |
3962 | XtSetArg (av[ac], XtNfont, face->font); | |
3963 | ++ac; | |
3964 | } | |
3965 | ||
3966 | if (ac) | |
3967 | { | |
3968 | struct x_resources res; | |
3969 | ||
3970 | XtSetValues (widget, av, ac); | |
3971 | ||
3972 | /* We must do children here in case we're handling a pop-up menu | |
3973 | in which case WIDGET is a popup shell. XtApplyToWidgets | |
3974 | is a function from lwlib. */ | |
3975 | res.av = av, res.ac = ac; | |
3976 | XtApplyToWidgets (widget, xl_apply_resources, &res); | |
3977 | } | |
3978 | } | |
3979 | ||
3980 | #endif /* USE_LUCID */ | |
3981 | ||
3982 | ||
3983 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */ | |
3984 | ||
3985 | void | |
3986 | x_set_menu_resources_from_menu_face (f, widget) | |
3987 | struct frame *f; | |
3988 | Widget widget; | |
3989 | { | |
3990 | #ifdef USE_LUCID | |
3991 | xl_set_menu_resources_from_menu_face (f, widget); | |
3992 | #endif | |
3993 | #ifdef USE_MOTIF | |
3994 | xm_set_menu_resources_from_menu_face (f, widget); | |
3995 | #endif | |
3996 | } | |
3997 | ||
3998 | #endif /* USE_X_TOOLKIT */ | |
3999 | ||
82641697 GM |
4000 | #endif /* HAVE_X_WINDOWS */ |
4001 | ||
4002 | ||
4003 | ||
4004 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4005 | Sinternal_get_lisp_face_attribute, | |
4006 | 2, 3, 0, | |
4007 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
4008 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
4009 | face attribute name, signal an error.\n\ | |
4010 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
4011 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
4012 | frames). If FRAME is omitted or nil, use the selected frame.") | |
4013 | (symbol, keyword, frame) | |
4014 | Lisp_Object symbol, keyword, frame; | |
4015 | { | |
4016 | Lisp_Object lface, value = Qnil; | |
4017 | ||
4018 | CHECK_SYMBOL (symbol, 0); | |
4019 | CHECK_SYMBOL (keyword, 1); | |
4020 | ||
4021 | if (EQ (frame, Qt)) | |
4022 | lface = lface_from_face_name (NULL, symbol, 1); | |
4023 | else | |
4024 | { | |
4025 | if (NILP (frame)) | |
c0617987 | 4026 | frame = selected_frame; |
82641697 GM |
4027 | CHECK_LIVE_FRAME (frame, 2); |
4028 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
4029 | } | |
4030 | ||
4031 | if (EQ (keyword, QCfamily)) | |
4032 | value = LFACE_FAMILY (lface); | |
4033 | else if (EQ (keyword, QCheight)) | |
4034 | value = LFACE_HEIGHT (lface); | |
4035 | else if (EQ (keyword, QCweight)) | |
4036 | value = LFACE_WEIGHT (lface); | |
4037 | else if (EQ (keyword, QCslant)) | |
4038 | value = LFACE_SLANT (lface); | |
4039 | else if (EQ (keyword, QCunderline)) | |
4040 | value = LFACE_UNDERLINE (lface); | |
4041 | else if (EQ (keyword, QCoverline)) | |
4042 | value = LFACE_OVERLINE (lface); | |
4043 | else if (EQ (keyword, QCstrike_through)) | |
4044 | value = LFACE_STRIKE_THROUGH (lface); | |
4045 | else if (EQ (keyword, QCbox)) | |
4046 | value = LFACE_BOX (lface); | |
4047 | else if (EQ (keyword, QCinverse_video) | |
4048 | || EQ (keyword, QCreverse_video)) | |
4049 | value = LFACE_INVERSE (lface); | |
4050 | else if (EQ (keyword, QCforeground)) | |
4051 | value = LFACE_FOREGROUND (lface); | |
4052 | else if (EQ (keyword, QCbackground)) | |
4053 | value = LFACE_BACKGROUND (lface); | |
4054 | else if (EQ (keyword, QCstipple)) | |
4055 | value = LFACE_STIPPLE (lface); | |
4056 | else if (EQ (keyword, QCwidth)) | |
4057 | value = LFACE_SWIDTH (lface); | |
4058 | else | |
4059 | signal_error ("Invalid face attribute name", keyword); | |
4060 | ||
4061 | return value; | |
4062 | } | |
4063 | ||
4064 | ||
4065 | DEFUN ("internal-lisp-face-attribute-values", | |
4066 | Finternal_lisp_face_attribute_values, | |
4067 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
4068 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
4069 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
4070 | (attr) | |
4071 | Lisp_Object attr; | |
4072 | { | |
4073 | Lisp_Object result = Qnil; | |
4074 | ||
4075 | CHECK_SYMBOL (attr, 0); | |
4076 | ||
4077 | if (EQ (attr, QCweight) | |
4078 | || EQ (attr, QCslant) | |
4079 | || EQ (attr, QCwidth)) | |
4080 | { | |
4081 | /* Extract permissible symbols from tables. */ | |
4082 | struct table_entry *table; | |
4083 | int i, dim; | |
4084 | ||
4085 | if (EQ (attr, QCweight)) | |
4086 | table = weight_table, dim = DIM (weight_table); | |
4087 | else if (EQ (attr, QCslant)) | |
4088 | table = slant_table, dim = DIM (slant_table); | |
4089 | else | |
4090 | table = swidth_table, dim = DIM (swidth_table); | |
4091 | ||
4092 | for (i = 0; i < dim; ++i) | |
4093 | { | |
4094 | Lisp_Object symbol = *table[i].symbol; | |
4095 | Lisp_Object tail = result; | |
4096 | ||
4097 | while (!NILP (tail) | |
4098 | && !EQ (XCAR (tail), symbol)) | |
4099 | tail = XCDR (tail); | |
4100 | ||
4101 | if (NILP (tail)) | |
4102 | result = Fcons (symbol, result); | |
4103 | } | |
4104 | } | |
4105 | else if (EQ (attr, QCunderline)) | |
4106 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4107 | else if (EQ (attr, QCoverline)) | |
4108 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4109 | else if (EQ (attr, QCstrike_through)) | |
4110 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4111 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4112 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4113 | ||
4114 | return result; | |
4115 | } | |
4116 | ||
4117 | ||
4118 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
4119 | Sinternal_merge_in_global_face, 2, 2, 0, | |
4120 | "Add attributes from frame-default definition of FACE to FACE on FRAME.") | |
4121 | (face, frame) | |
4122 | Lisp_Object face, frame; | |
4123 | { | |
4124 | Lisp_Object global_lface, local_lface; | |
4125 | CHECK_LIVE_FRAME (frame, 1); | |
4126 | global_lface = lface_from_face_name (NULL, face, 1); | |
4127 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4128 | if (NILP (local_lface)) | |
4129 | local_lface = Finternal_make_lisp_face (face, frame); | |
4130 | merge_face_vectors (XVECTOR (global_lface)->contents, | |
4131 | XVECTOR (local_lface)->contents); | |
4132 | return face; | |
4133 | } | |
4134 | ||
4135 | ||
4136 | /* The following function is implemented for compatibility with 20.2. | |
4137 | The function is used in x-resolve-fonts when it is asked to | |
4138 | return fonts with the same size as the font of a face. This is | |
4139 | done in fontset.el. */ | |
4140 | ||
4141 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, | |
4142 | "Return the font name of face FACE, or nil if it is unspecified.\n\ | |
4143 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4144 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4145 | The font default for a face is either nil, or a list\n\ | |
4146 | of the form (bold), (italic) or (bold italic).\n\ | |
4147 | If FRAME is omitted or nil, use the selected frame.") | |
4148 | (face, frame) | |
4149 | Lisp_Object face, frame; | |
4150 | { | |
4151 | if (EQ (frame, Qt)) | |
4152 | { | |
4153 | Lisp_Object result = Qnil; | |
4154 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4155 | ||
4156 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4157 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4158 | result = Fcons (Qbold, result); | |
4159 | ||
4160 | if (!NILP (LFACE_SLANT (lface)) | |
4161 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
4162 | result = Fcons (Qitalic, result); | |
4163 | ||
4164 | return result; | |
4165 | } | |
4166 | else | |
4167 | { | |
4168 | struct frame *f = frame_or_selected_frame (frame, 1); | |
4169 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
4170 | struct face *face = FACE_FROM_ID (f, face_id); | |
4171 | return build_string (face->font_name); | |
4172 | } | |
4173 | } | |
4174 | ||
4175 | ||
4176 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4177 | all attributes are `equal'. Tries to be fast because this function | |
4178 | is called quite often. */ | |
4179 | ||
4180 | static INLINE int | |
4181 | lface_equal_p (v1, v2) | |
4182 | Lisp_Object *v1, *v2; | |
4183 | { | |
4184 | int i, equal_p = 1; | |
4185 | ||
4186 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4187 | { | |
4188 | Lisp_Object a = v1[i]; | |
4189 | Lisp_Object b = v2[i]; | |
4190 | ||
4191 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4192 | and the other is specified. */ | |
4193 | equal_p = XTYPE (a) == XTYPE (b); | |
4194 | if (!equal_p) | |
4195 | break; | |
4196 | ||
4197 | if (!EQ (a, b)) | |
4198 | { | |
4199 | switch (XTYPE (a)) | |
4200 | { | |
4201 | case Lisp_String: | |
4202 | equal_p = (XSTRING (a)->size == XSTRING (b)->size | |
4203 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, | |
4204 | XSTRING (a)->size) == 0); | |
4205 | break; | |
4206 | ||
4207 | case Lisp_Int: | |
4208 | case Lisp_Symbol: | |
4209 | equal_p = 0; | |
4210 | break; | |
4211 | ||
4212 | default: | |
4213 | equal_p = !NILP (Fequal (a, b)); | |
4214 | break; | |
4215 | } | |
4216 | } | |
4217 | } | |
4218 | ||
4219 | return equal_p; | |
4220 | } | |
4221 | ||
4222 | ||
4223 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4224 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
4225 | "True if FACE1 and FACE2 are equal.\n\ | |
4226 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4227 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4228 | If FRAME is omitted or nil, use the selected frame.") | |
4229 | (face1, face2, frame) | |
4230 | Lisp_Object face1, face2, frame; | |
4231 | { | |
4232 | int equal_p; | |
4233 | struct frame *f; | |
4234 | Lisp_Object lface1, lface2; | |
4235 | ||
4236 | if (EQ (frame, Qt)) | |
4237 | f = NULL; | |
4238 | else | |
4239 | /* Don't use check_x_frame here because this function is called | |
4240 | before X frames exist. At that time, if FRAME is nil, | |
4241 | selected_frame will be used which is the frame dumped with | |
4242 | Emacs. That frame is not an X frame. */ | |
4243 | f = frame_or_selected_frame (frame, 2); | |
4244 | ||
4245 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4246 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4247 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4248 | XVECTOR (lface2)->contents); | |
4249 | return equal_p ? Qt : Qnil; | |
4250 | } | |
4251 | ||
4252 | ||
4253 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, | |
4254 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
4255 | "True if FACE has no attribute specified.\n\ | |
4256 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4257 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4258 | If FRAME is omitted or nil, use the selected frame.") | |
4259 | (face, frame) | |
4260 | Lisp_Object face, frame; | |
4261 | { | |
4262 | struct frame *f; | |
4263 | Lisp_Object lface; | |
4264 | int i; | |
4265 | ||
4266 | if (NILP (frame)) | |
c0617987 GM |
4267 | frame = selected_frame; |
4268 | CHECK_LIVE_FRAME (frame, 0); | |
4269 | f = XFRAME (frame); | |
82641697 GM |
4270 | |
4271 | if (EQ (frame, Qt)) | |
4272 | lface = lface_from_face_name (NULL, face, 1); | |
4273 | else | |
4274 | lface = lface_from_face_name (f, face, 1); | |
4275 | ||
4276 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4277 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
4278 | break; | |
4279 | ||
4280 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; | |
4281 | } | |
4282 | ||
4283 | ||
4284 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
4285 | 0, 1, 0, | |
4286 | "Return an alist of frame-local faces defined on FRAME.\n\ | |
4287 | For internal use only.") | |
4288 | (frame) | |
4289 | Lisp_Object frame; | |
4290 | { | |
4291 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4292 | return f->face_alist; | |
4293 | } | |
4294 | ||
4295 | ||
4296 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4297 | below in computing a hash value for a Lisp face. */ | |
4298 | ||
4299 | static INLINE unsigned | |
4300 | hash_string_case_insensitive (string) | |
4301 | Lisp_Object string; | |
4302 | { | |
4303 | unsigned char *s; | |
4304 | unsigned hash = 0; | |
4305 | xassert (STRINGP (string)); | |
4306 | for (s = XSTRING (string)->data; *s; ++s) | |
4307 | hash = (hash << 1) ^ tolower (*s); | |
4308 | return hash; | |
4309 | } | |
4310 | ||
4311 | ||
4312 | /* Return a hash code for face attribute vector V. */ | |
4313 | ||
4314 | static INLINE unsigned | |
4315 | lface_hash (v) | |
4316 | Lisp_Object *v; | |
4317 | { | |
4318 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4319 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4320 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
4321 | ^ (unsigned) v[LFACE_WEIGHT_INDEX] | |
4322 | ^ (unsigned) v[LFACE_SLANT_INDEX] | |
4323 | ^ (unsigned) v[LFACE_SWIDTH_INDEX] | |
4324 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); | |
4325 | } | |
4326 | ||
4327 | ||
4328 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4329 | considering charsets/registries). They do if they specify the same | |
4330 | family, point size, weight, width and slant. Both LFACE1 and | |
4331 | LFACE2 must be fully-specified. */ | |
4332 | ||
4333 | static INLINE int | |
4334 | lface_same_font_attributes_p (lface1, lface2) | |
4335 | Lisp_Object *lface1, *lface2; | |
4336 | { | |
4337 | xassert (lface_fully_specified_p (lface1) | |
4338 | && lface_fully_specified_p (lface2)); | |
4339 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4340 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
4341 | && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) | |
4342 | == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) | |
4343 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) | |
4344 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
4345 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX])); | |
4346 | } | |
4347 | ||
4348 | ||
4349 | \f | |
4350 | /*********************************************************************** | |
4351 | Realized Faces | |
4352 | ***********************************************************************/ | |
4353 | ||
4354 | /* Allocate and return a new realized face for Lisp face attribute | |
4355 | vector ATTR, charset CHARSET, and registry REGISTRY. */ | |
4356 | ||
4357 | static struct face * | |
4358 | make_realized_face (attr, charset, registry) | |
4359 | Lisp_Object *attr; | |
4360 | int charset; | |
4361 | Lisp_Object registry; | |
4362 | { | |
4363 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4364 | bzero (face, sizeof *face); | |
4365 | face->charset = charset; | |
4366 | face->registry = registry; | |
4367 | bcopy (attr, face->lface, sizeof face->lface); | |
4368 | return face; | |
4369 | } | |
4370 | ||
4371 | ||
4372 | /* Free realized face FACE, including its X resources. FACE may | |
4373 | be null. */ | |
4374 | ||
4375 | static void | |
4376 | free_realized_face (f, face) | |
4377 | struct frame *f; | |
4378 | struct face *face; | |
4379 | { | |
4380 | if (face) | |
4381 | { | |
4382 | #ifdef HAVE_X_WINDOWS | |
4383 | if (FRAME_X_P (f)) | |
4384 | { | |
4385 | if (face->gc) | |
4386 | { | |
4387 | x_free_gc (f, face->gc); | |
4388 | face->gc = 0; | |
4389 | } | |
4390 | ||
4391 | free_face_colors (f, face); | |
4392 | x_destroy_bitmap (f, face->stipple); | |
4393 | } | |
4394 | #endif /* HAVE_X_WINDOWS */ | |
4395 | ||
4396 | xfree (face); | |
4397 | } | |
4398 | } | |
4399 | ||
4400 | ||
4401 | /* Prepare face FACE for subsequent display on frame F. This | |
4402 | allocated GCs if they haven't been allocated yet or have been freed | |
4403 | by clearing the face cache. */ | |
4404 | ||
4405 | void | |
4406 | prepare_face_for_display (f, face) | |
4407 | struct frame *f; | |
4408 | struct face *face; | |
4409 | { | |
4410 | #ifdef HAVE_X_WINDOWS | |
4411 | xassert (FRAME_X_P (f)); | |
4412 | ||
4413 | if (face->gc == 0) | |
4414 | { | |
4415 | XGCValues xgcv; | |
4416 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4417 | ||
4418 | xgcv.foreground = face->foreground; | |
4419 | xgcv.background = face->background; | |
4420 | xgcv.graphics_exposures = False; | |
4421 | ||
4422 | /* The font of FACE may be null if we couldn't load it. */ | |
4423 | if (face->font) | |
4424 | { | |
4425 | xgcv.font = face->font->fid; | |
4426 | mask |= GCFont; | |
4427 | } | |
4428 | ||
4429 | BLOCK_INPUT; | |
4430 | if (face->stipple) | |
4431 | { | |
be8a72f4 | 4432 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4433 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4434 | mask |= GCFillStyle | GCStipple; | |
4435 | } | |
4436 | ||
4437 | face->gc = x_create_gc (f, mask, &xgcv); | |
4438 | UNBLOCK_INPUT; | |
4439 | } | |
4440 | #endif | |
4441 | } | |
4442 | ||
4443 | ||
4444 | /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in | |
4445 | macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for | |
4446 | ISO8859-1 if the ASCII face suffices. */ | |
4447 | ||
4448 | int | |
4449 | face_suitable_for_iso8859_1_p (face) | |
4450 | struct face *face; | |
4451 | { | |
4452 | int len = strlen (face->font_name); | |
4453 | return len >= 9 && xstricmp (face->font_name + len - 9, "iso8859-1") == 0; | |
4454 | } | |
4455 | ||
4456 | ||
4457 | /* Value is non-zero if FACE is suitable for displaying characters | |
4458 | of CHARSET. CHARSET < 0 means unibyte text. */ | |
4459 | ||
4460 | INLINE int | |
4461 | face_suitable_for_charset_p (face, charset) | |
4462 | struct face *face; | |
4463 | int charset; | |
4464 | { | |
4465 | int suitable_p = 0; | |
4466 | ||
4467 | if (charset < 0) | |
4468 | { | |
4469 | if (EQ (face->registry, Vface_default_registry) | |
4470 | || !NILP (Fequal (face->registry, Vface_default_registry))) | |
4471 | suitable_p = 1; | |
4472 | } | |
4473 | else if (face->charset == charset) | |
4474 | suitable_p = 1; | |
4475 | else if (face->charset == CHARSET_ASCII | |
4476 | && charset == charset_latin_iso8859_1) | |
4477 | suitable_p = face_suitable_for_iso8859_1_p (face); | |
4478 | else if (face->charset == charset_latin_iso8859_1 | |
4479 | && charset == CHARSET_ASCII) | |
4480 | suitable_p = 1; | |
4481 | ||
4482 | return suitable_p; | |
4483 | } | |
4484 | ||
4485 | ||
4486 | \f | |
4487 | /*********************************************************************** | |
4488 | Face Cache | |
4489 | ***********************************************************************/ | |
4490 | ||
4491 | /* Return a new face cache for frame F. */ | |
4492 | ||
4493 | static struct face_cache * | |
4494 | make_face_cache (f) | |
4495 | struct frame *f; | |
4496 | { | |
4497 | struct face_cache *c; | |
4498 | int size; | |
4499 | ||
4500 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4501 | bzero (c, sizeof *c); | |
4502 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4503 | c->buckets = (struct face **) xmalloc (size); | |
4504 | bzero (c->buckets, size); | |
4505 | c->size = 50; | |
4506 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4507 | c->f = f; | |
4508 | return c; | |
4509 | } | |
4510 | ||
4511 | ||
4512 | /* Clear out all graphics contexts for all realized faces, except for | |
4513 | the basic faces. This should be done from time to time just to avoid | |
4514 | keeping too many graphics contexts that are no longer needed. */ | |
4515 | ||
4516 | static void | |
4517 | clear_face_gcs (c) | |
4518 | struct face_cache *c; | |
4519 | { | |
4520 | if (c && FRAME_X_P (c->f)) | |
4521 | { | |
4522 | #ifdef HAVE_X_WINDOWS | |
4523 | int i; | |
4524 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4525 | { | |
4526 | struct face *face = c->faces_by_id[i]; | |
4527 | if (face && face->gc) | |
4528 | { | |
4529 | x_free_gc (c->f, face->gc); | |
4530 | face->gc = 0; | |
4531 | } | |
4532 | } | |
4533 | #endif /* HAVE_X_WINDOWS */ | |
4534 | } | |
4535 | } | |
4536 | ||
4537 | ||
4538 | /* Free all realized faces in face cache C, including basic faces. C | |
4539 | may be null. If faces are freed, make sure the frame's current | |
4540 | matrix is marked invalid, so that a display caused by an expose | |
4541 | event doesn't try to use faces we destroyed. */ | |
4542 | ||
4543 | static void | |
4544 | free_realized_faces (c) | |
4545 | struct face_cache *c; | |
4546 | { | |
4547 | if (c && c->used) | |
4548 | { | |
4549 | int i, size; | |
4550 | struct frame *f = c->f; | |
4551 | ||
4552 | for (i = 0; i < c->used; ++i) | |
4553 | { | |
4554 | free_realized_face (f, c->faces_by_id[i]); | |
4555 | c->faces_by_id[i] = NULL; | |
4556 | } | |
4557 | ||
4558 | c->used = 0; | |
4559 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4560 | bzero (c->buckets, size); | |
4561 | ||
4562 | /* Must do a thorough redisplay the next time. Mark current | |
4563 | matrices as invalid because they will reference faces freed | |
4564 | above. This function is also called when a frame is | |
4565 | destroyed. In this case, the root window of F is nil. */ | |
4566 | if (WINDOWP (f->root_window)) | |
4567 | { | |
4568 | clear_current_matrices (f); | |
4569 | ++windows_or_buffers_changed; | |
4570 | } | |
4571 | } | |
4572 | } | |
4573 | ||
4574 | ||
4575 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. | |
4576 | This is done after attributes of a named face have been changed, | |
4577 | because we can't tell which realized faces depend on that face. */ | |
4578 | ||
4579 | void | |
4580 | free_all_realized_faces (frame) | |
4581 | Lisp_Object frame; | |
4582 | { | |
4583 | if (NILP (frame)) | |
4584 | { | |
4585 | Lisp_Object rest; | |
4586 | FOR_EACH_FRAME (rest, frame) | |
4587 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4588 | } | |
4589 | else | |
4590 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4591 | } | |
4592 | ||
4593 | ||
4594 | /* Free face cache C and faces in it, including their X resources. */ | |
4595 | ||
4596 | static void | |
4597 | free_face_cache (c) | |
4598 | struct face_cache *c; | |
4599 | { | |
4600 | if (c) | |
4601 | { | |
4602 | free_realized_faces (c); | |
4603 | xfree (c->buckets); | |
4604 | xfree (c->faces_by_id); | |
4605 | xfree (c); | |
4606 | } | |
4607 | } | |
4608 | ||
4609 | ||
4610 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
4611 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
4612 | collision list of the face hash table of C. This is done because | |
4613 | otherwise lookup_face would find FACE for every charset, even if | |
4614 | faces with the same attributes but for specific charsets exist. */ | |
4615 | ||
4616 | static void | |
4617 | cache_face (c, face, hash) | |
4618 | struct face_cache *c; | |
4619 | struct face *face; | |
4620 | unsigned hash; | |
4621 | { | |
4622 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4623 | ||
4624 | face->hash = hash; | |
4625 | ||
4626 | if (face->fontset >= 0) | |
4627 | { | |
4628 | struct face *last = c->buckets[i]; | |
4629 | if (last) | |
4630 | { | |
4631 | while (last->next) | |
4632 | last = last->next; | |
4633 | last->next = face; | |
4634 | face->prev = last; | |
4635 | face->next = NULL; | |
4636 | } | |
4637 | else | |
4638 | { | |
4639 | c->buckets[i] = face; | |
4640 | face->prev = face->next = NULL; | |
4641 | } | |
4642 | } | |
4643 | else | |
4644 | { | |
4645 | face->prev = NULL; | |
4646 | face->next = c->buckets[i]; | |
4647 | if (face->next) | |
4648 | face->next->prev = face; | |
4649 | c->buckets[i] = face; | |
4650 | } | |
4651 | ||
4652 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4653 | slot as FACE->id. */ | |
4654 | for (i = 0; i < c->used; ++i) | |
4655 | if (c->faces_by_id[i] == NULL) | |
4656 | break; | |
4657 | face->id = i; | |
4658 | ||
4659 | /* Maybe enlarge C->faces_by_id. */ | |
4660 | if (i == c->used && c->used == c->size) | |
4661 | { | |
4662 | int new_size = 2 * c->size; | |
4663 | int sz = new_size * sizeof *c->faces_by_id; | |
4664 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4665 | c->size = new_size; | |
4666 | } | |
4667 | ||
4668 | #if GLYPH_DEBUG | |
4669 | /* Check that FACE got a unique id. */ | |
4670 | { | |
4671 | int j, n; | |
4672 | struct face *face; | |
4673 | ||
4674 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4675 | for (face = c->buckets[j]; face; face = face->next) | |
4676 | if (face->id == i) | |
4677 | ++n; | |
4678 | ||
4679 | xassert (n == 1); | |
4680 | } | |
4681 | #endif /* GLYPH_DEBUG */ | |
4682 | ||
4683 | c->faces_by_id[i] = face; | |
4684 | if (i == c->used) | |
4685 | ++c->used; | |
4686 | } | |
4687 | ||
4688 | ||
4689 | /* Remove face FACE from cache C. */ | |
4690 | ||
4691 | static void | |
4692 | uncache_face (c, face) | |
4693 | struct face_cache *c; | |
4694 | struct face *face; | |
4695 | { | |
4696 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
4697 | ||
4698 | if (face->prev) | |
4699 | face->prev->next = face->next; | |
4700 | else | |
4701 | c->buckets[i] = face->next; | |
4702 | ||
4703 | if (face->next) | |
4704 | face->next->prev = face->prev; | |
4705 | ||
4706 | c->faces_by_id[face->id] = NULL; | |
4707 | if (face->id == c->used) | |
4708 | --c->used; | |
4709 | } | |
4710 | ||
4711 | ||
4712 | /* Look up a realized face with face attributes ATTR in the face cache | |
4713 | of frame F. The face will be used to display characters of | |
4714 | CHARSET. CHARSET < 0 means the face will be used to display | |
4715 | unibyte text. The value of face-default-registry is used to choose | |
4716 | a font for the face in that case. Value is the ID of the face | |
4717 | found. If no suitable face is found, realize a new one. */ | |
4718 | ||
4719 | INLINE int | |
4720 | lookup_face (f, attr, charset) | |
4721 | struct frame *f; | |
4722 | Lisp_Object *attr; | |
4723 | int charset; | |
4724 | { | |
4725 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
4726 | unsigned hash; | |
4727 | int i; | |
4728 | struct face *face; | |
4729 | ||
4730 | xassert (c != NULL); | |
4731 | check_lface_attrs (attr); | |
4732 | ||
4733 | /* Look up ATTR in the face cache. */ | |
4734 | hash = lface_hash (attr); | |
4735 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4736 | ||
4737 | for (face = c->buckets[i]; face; face = face->next) | |
4738 | if (face->hash == hash | |
44747bd0 | 4739 | && (!FRAME_WINDOW_P (f) |
82641697 GM |
4740 | || FACE_SUITABLE_FOR_CHARSET_P (face, charset)) |
4741 | && lface_equal_p (face->lface, attr)) | |
4742 | break; | |
4743 | ||
4744 | /* If not found, realize a new face. */ | |
4745 | if (face == NULL) | |
4746 | { | |
4747 | face = realize_face (c, attr, charset); | |
4748 | cache_face (c, face, hash); | |
4749 | } | |
4750 | ||
4751 | #if GLYPH_DEBUG | |
4752 | xassert (face == FACE_FROM_ID (f, face->id)); | |
4753 | if (FRAME_X_P (f)) | |
4754 | xassert (charset < 0 || FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
4755 | #endif /* GLYPH_DEBUG */ | |
4756 | ||
4757 | return face->id; | |
4758 | } | |
4759 | ||
4760 | ||
4761 | /* Return the face id of the realized face for named face SYMBOL on | |
4762 | frame F suitable for displaying characters from CHARSET. CHARSET < | |
4763 | 0 means unibyte text. */ | |
4764 | ||
4765 | int | |
4766 | lookup_named_face (f, symbol, charset) | |
4767 | struct frame *f; | |
4768 | Lisp_Object symbol; | |
4769 | int charset; | |
4770 | { | |
4771 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4772 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4773 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4774 | ||
4775 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4776 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4777 | merge_face_vectors (symbol_attrs, attrs); | |
4778 | return lookup_face (f, attrs, charset); | |
4779 | } | |
4780 | ||
4781 | ||
4782 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
4783 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
4784 | ||
4785 | int | |
4786 | ascii_face_of_lisp_face (f, lface_id) | |
4787 | struct frame *f; | |
4788 | int lface_id; | |
4789 | { | |
4790 | int face_id; | |
4791 | ||
4792 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) | |
4793 | { | |
4794 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
4795 | face_id = lookup_named_face (f, face_name, CHARSET_ASCII); | |
4796 | } | |
4797 | else | |
4798 | face_id = -1; | |
4799 | ||
4800 | return face_id; | |
4801 | } | |
4802 | ||
4803 | ||
4804 | /* Return a face for charset ASCII that is like the face with id | |
4805 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4806 | STEPS < 0 means larger. Value is the id of the face. */ | |
4807 | ||
4808 | int | |
4809 | smaller_face (f, face_id, steps) | |
4810 | struct frame *f; | |
4811 | int face_id, steps; | |
4812 | { | |
4813 | #ifdef HAVE_X_WINDOWS | |
4814 | struct face *face; | |
4815 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4816 | int pt, last_pt, last_height; | |
4817 | int delta; | |
4818 | int new_face_id; | |
4819 | struct face *new_face; | |
4820 | ||
4821 | /* If not called for an X frame, just return the original face. */ | |
4822 | if (FRAME_TERMCAP_P (f)) | |
4823 | return face_id; | |
4824 | ||
4825 | /* Try in increments of 1/2 pt. */ | |
4826 | delta = steps < 0 ? 5 : -5; | |
4827 | steps = abs (steps); | |
4828 | ||
4829 | face = FACE_FROM_ID (f, face_id); | |
4830 | bcopy (face->lface, attrs, sizeof attrs); | |
4831 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4832 | new_face_id = face_id; | |
4833 | last_height = FONT_HEIGHT (face->font); | |
4834 | ||
4835 | while (steps | |
4836 | && pt + delta > 0 | |
4837 | /* Give up if we cannot find a font within 10pt. */ | |
4838 | && abs (last_pt - pt) < 100) | |
4839 | { | |
4840 | /* Look up a face for a slightly smaller/larger font. */ | |
4841 | pt += delta; | |
4842 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
4843 | new_face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4844 | new_face = FACE_FROM_ID (f, new_face_id); | |
4845 | ||
4846 | /* If height changes, count that as one step. */ | |
4847 | if (FONT_HEIGHT (new_face->font) != last_height) | |
4848 | { | |
4849 | --steps; | |
4850 | last_height = FONT_HEIGHT (new_face->font); | |
4851 | last_pt = pt; | |
4852 | } | |
4853 | } | |
4854 | ||
4855 | return new_face_id; | |
4856 | ||
4857 | #else /* not HAVE_X_WINDOWS */ | |
4858 | ||
4859 | return face_id; | |
4860 | ||
4861 | #endif /* not HAVE_X_WINDOWS */ | |
4862 | } | |
4863 | ||
4864 | ||
4865 | /* Return a face for charset ASCII that is like the face with id | |
4866 | FACE_ID on frame F, but has height HEIGHT. */ | |
4867 | ||
4868 | int | |
4869 | face_with_height (f, face_id, height) | |
4870 | struct frame *f; | |
4871 | int face_id; | |
4872 | int height; | |
4873 | { | |
4874 | #ifdef HAVE_X_WINDOWS | |
4875 | struct face *face; | |
4876 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4877 | ||
4878 | if (FRAME_TERMCAP_P (f) | |
4879 | || height <= 0) | |
4880 | return face_id; | |
4881 | ||
4882 | face = FACE_FROM_ID (f, face_id); | |
4883 | bcopy (face->lface, attrs, sizeof attrs); | |
4884 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
4885 | face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4886 | #endif /* HAVE_X_WINDOWS */ | |
4887 | ||
4888 | return face_id; | |
4889 | } | |
4890 | ||
44747bd0 EZ |
4891 | /* Return the face id of the realized face for named face SYMBOL on |
4892 | frame F suitable for displaying characters from CHARSET (CHARSET < | |
4893 | 0 means unibyte text), and use attributes of the face FACE_ID for | |
4894 | attributes that aren't completely specified by SYMBOL. This is | |
4895 | like lookup_named_face, except that the default attributes come | |
4896 | from FACE_ID, not from the default face. FACE_ID is assumed to | |
4897 | be already realized. */ | |
4898 | ||
4899 | int | |
4900 | lookup_derived_face (f, symbol, charset, face_id) | |
4901 | struct frame *f; | |
4902 | Lisp_Object symbol; | |
4903 | int charset; | |
4904 | int face_id; | |
4905 | { | |
4906 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4907 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4908 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
4909 | ||
4910 | if (!default_face) | |
4911 | abort (); | |
4912 | ||
4913 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4914 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4915 | merge_face_vectors (symbol_attrs, attrs); | |
4916 | return lookup_face (f, attrs, charset); | |
4917 | } | |
4918 | ||
82641697 GM |
4919 | |
4920 | \f | |
4921 | /*********************************************************************** | |
4922 | Font selection | |
4923 | ***********************************************************************/ | |
4924 | ||
4925 | DEFUN ("internal-set-font-selection-order", | |
4926 | Finternal_set_font_selection_order, | |
4927 | Sinternal_set_font_selection_order, 1, 1, 0, | |
4928 | "Set font selection order for face font selection to ORDER.\n\ | |
4929 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
4930 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
4931 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
4932 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
4933 | a suitable height, and then tries to match the font weight.\n\ | |
4934 | Value is ORDER.") | |
4935 | (order) | |
4936 | Lisp_Object order; | |
4937 | { | |
4938 | Lisp_Object list; | |
4939 | int i; | |
4940 | int indices[4]; | |
4941 | ||
4942 | CHECK_LIST (order, 0); | |
4943 | bzero (indices, sizeof indices); | |
4944 | i = 0; | |
4945 | ||
4946 | for (list = order; | |
4947 | CONSP (list) && i < DIM (indices); | |
4948 | list = XCDR (list), ++i) | |
4949 | { | |
4950 | Lisp_Object attr = XCAR (list); | |
4951 | int xlfd; | |
4952 | ||
4953 | if (EQ (attr, QCwidth)) | |
4954 | xlfd = XLFD_SWIDTH; | |
4955 | else if (EQ (attr, QCheight)) | |
4956 | xlfd = XLFD_POINT_SIZE; | |
4957 | else if (EQ (attr, QCweight)) | |
4958 | xlfd = XLFD_WEIGHT; | |
4959 | else if (EQ (attr, QCslant)) | |
4960 | xlfd = XLFD_SLANT; | |
4961 | else | |
4962 | break; | |
4963 | ||
4964 | if (indices[i] != 0) | |
4965 | break; | |
4966 | indices[i] = xlfd; | |
4967 | } | |
4968 | ||
4969 | if (!NILP (list) | |
4970 | || i != DIM (indices) | |
4971 | || indices[0] == 0 | |
4972 | || indices[1] == 0 | |
4973 | || indices[2] == 0 | |
4974 | || indices[3] == 0) | |
4975 | signal_error ("Invalid font sort order", order); | |
4976 | ||
4977 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
4978 | { | |
4979 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
4980 | free_all_realized_faces (Qnil); | |
4981 | } | |
4982 | ||
4983 | return Qnil; | |
4984 | } | |
4985 | ||
4986 | ||
4987 | DEFUN ("internal-set-alternative-font-family-alist", | |
4988 | Finternal_set_alternative_font_family_alist, | |
4989 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
4990 | "Define alternative font families to try in face font selection.\n\ | |
4991 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
4992 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
4993 | be found. Value is ALIST.") | |
4994 | (alist) | |
4995 | Lisp_Object alist; | |
4996 | { | |
4997 | CHECK_LIST (alist, 0); | |
4998 | Vface_alternative_font_family_alist = alist; | |
4999 | free_all_realized_faces (Qnil); | |
5000 | return alist; | |
5001 | } | |
5002 | ||
5003 | ||
5004 | #ifdef HAVE_X_WINDOWS | |
5005 | ||
5006 | /* Return the X registry and encoding of font name FONT_NAME on frame F. | |
5007 | Value is nil if not successful. */ | |
5008 | ||
5009 | static Lisp_Object | |
5010 | deduce_unibyte_registry (f, font_name) | |
5011 | struct frame *f; | |
5012 | char *font_name; | |
5013 | { | |
5014 | struct font_name font; | |
5015 | Lisp_Object registry = Qnil; | |
5016 | ||
5017 | font.name = STRDUPA (font_name); | |
5018 | if (split_font_name (f, &font, 0)) | |
5019 | { | |
5020 | char *buffer; | |
5021 | ||
5022 | /* Extract registry and encoding. */ | |
5023 | buffer = (char *) alloca (strlen (font.fields[XLFD_REGISTRY]) | |
5024 | + strlen (font.fields[XLFD_ENCODING]) | |
5025 | + 10); | |
5026 | strcpy (buffer, font.fields[XLFD_REGISTRY]); | |
5027 | strcat (buffer, "-"); | |
5028 | strcat (buffer, font.fields[XLFD_ENCODING]); | |
5029 | registry = build_string (buffer); | |
5030 | } | |
5031 | ||
5032 | return registry; | |
5033 | } | |
5034 | ||
5035 | ||
5036 | /* Value is non-zero if FONT is the name of a scalable font. The | |
5037 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5038 | are zero for scalable fonts. Intlfonts contain at least one | |
5039 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5040 | just test average width. */ | |
5041 | ||
5042 | static int | |
5043 | font_scalable_p (font) | |
5044 | struct font_name *font; | |
5045 | { | |
5046 | char *s = font->fields[XLFD_AVGWIDTH]; | |
5047 | return *s == '0' && *(s + 1) == '\0'; | |
5048 | } | |
5049 | ||
5050 | ||
5051 | /* Value is non-zero if FONT1 is a better match for font attributes | |
5052 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5053 | font sort order. COMPARE_PT_P zero means don't compare point | |
5054 | sizes. */ | |
5055 | ||
5056 | static int | |
5057 | better_font_p (values, font1, font2, compare_pt_p) | |
5058 | int *values; | |
5059 | struct font_name *font1, *font2; | |
5060 | int compare_pt_p; | |
5061 | { | |
5062 | int i; | |
5063 | ||
5064 | for (i = 0; i < 4; ++i) | |
5065 | { | |
5066 | int xlfd_idx = font_sort_order[i]; | |
5067 | ||
5068 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5069 | { | |
5070 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5071 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
5072 | ||
5073 | if (delta1 > delta2) | |
5074 | return 0; | |
5075 | else if (delta1 < delta2) | |
5076 | return 1; | |
5077 | else | |
5078 | { | |
5079 | /* The difference may be equal because, e.g., the face | |
5080 | specifies `italic' but we have only `regular' and | |
5081 | `oblique'. Prefer `oblique' in this case. */ | |
5082 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5083 | && font1->numeric[xlfd_idx] > values[i] | |
5084 | && font2->numeric[xlfd_idx] < values[i]) | |
5085 | return 1; | |
5086 | } | |
5087 | } | |
5088 | } | |
5089 | ||
5090 | return 0; | |
5091 | } | |
5092 | ||
5093 | ||
5094 | #if SCALABLE_FONTS | |
5095 | ||
5096 | /* Value is non-zero if FONT is an exact match for face attributes in | |
5097 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
5098 | sort order. */ | |
5099 | ||
5100 | static int | |
5101 | exact_face_match_p (specified, font) | |
5102 | int *specified; | |
5103 | struct font_name *font; | |
5104 | { | |
5105 | int i; | |
5106 | ||
5107 | for (i = 0; i < 4; ++i) | |
5108 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
5109 | break; | |
5110 | ||
5111 | return i == 4; | |
5112 | } | |
5113 | ||
5114 | ||
5115 | /* Value is the name of a scaled font, generated from scalable font | |
5116 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5117 | Value is allocated from heap. */ | |
5118 | ||
5119 | static char * | |
5120 | build_scalable_font_name (f, font, specified_pt) | |
5121 | struct frame *f; | |
5122 | struct font_name *font; | |
5123 | int specified_pt; | |
5124 | { | |
5125 | char point_size[20], pixel_size[20]; | |
5126 | int pixel_value; | |
5127 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5128 | double pt; | |
5129 | ||
5130 | /* If scalable font is for a specific resolution, compute | |
5131 | the point size we must specify from the resolution of | |
5132 | the display and the specified resolution of the font. */ | |
5133 | if (font->numeric[XLFD_RESY] != 0) | |
5134 | { | |
5135 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
5136 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
5137 | } | |
5138 | else | |
5139 | { | |
5140 | pt = specified_pt; | |
5141 | pixel_value = resy / 720.0 * pt; | |
5142 | } | |
5143 | ||
5144 | /* Set point size of the font. */ | |
5145 | sprintf (point_size, "%d", (int) pt); | |
5146 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5147 | font->numeric[XLFD_POINT_SIZE] = pt; | |
5148 | ||
5149 | /* Set pixel size. */ | |
5150 | sprintf (pixel_size, "%d", pixel_value); | |
5151 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5152 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
5153 | ||
5154 | /* If font doesn't specify its resolution, use the | |
5155 | resolution of the display. */ | |
5156 | if (font->numeric[XLFD_RESY] == 0) | |
5157 | { | |
5158 | char buffer[20]; | |
5159 | sprintf (buffer, "%d", (int) resy); | |
5160 | font->fields[XLFD_RESY] = buffer; | |
5161 | font->numeric[XLFD_RESY] = resy; | |
5162 | } | |
5163 | ||
5164 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) | |
5165 | { | |
5166 | char buffer[20]; | |
5167 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5168 | sprintf (buffer, "%d", resx); | |
5169 | font->fields[XLFD_RESX] = buffer; | |
5170 | font->numeric[XLFD_RESX] = resx; | |
5171 | } | |
5172 | ||
5173 | return build_font_name (font); | |
5174 | } | |
5175 | ||
5176 | ||
5177 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5178 | can't run a Lisp function here since this function may be called | |
5179 | with input blocked. */ | |
5180 | ||
5181 | static int | |
5182 | may_use_scalable_font_p (font, name) | |
5183 | struct font_name *font; | |
5184 | char *name; | |
5185 | { | |
5186 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5187 | return 1; | |
5188 | else if (CONSP (Vscalable_fonts_allowed)) | |
5189 | { | |
5190 | Lisp_Object tail, regexp; | |
5191 | ||
5192 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) | |
5193 | { | |
5194 | regexp = XCAR (tail); | |
5195 | if (STRINGP (regexp) | |
5196 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
5197 | return 1; | |
5198 | } | |
5199 | } | |
5200 | ||
5201 | return 0; | |
5202 | } | |
5203 | ||
5204 | #endif /* SCALABLE_FONTS != 0 */ | |
5205 | ||
5206 | ||
5207 | /* Return the name of the best matching font for face attributes | |
5208 | ATTRS in the array of font_name structures FONTS which contains | |
5209 | NFONTS elements. Value is a font name which is allocated from | |
5210 | the heap. FONTS is freed by this function. */ | |
5211 | ||
5212 | static char * | |
5213 | best_matching_font (f, attrs, fonts, nfonts) | |
5214 | struct frame *f; | |
5215 | Lisp_Object *attrs; | |
5216 | struct font_name *fonts; | |
5217 | int nfonts; | |
5218 | { | |
5219 | char *font_name; | |
5220 | struct font_name *best; | |
5221 | int i, pt; | |
5222 | int specified[4]; | |
5223 | int exact_p; | |
5224 | ||
5225 | if (nfonts == 0) | |
5226 | return NULL; | |
5227 | ||
5228 | /* Make specified font attributes available in `specified', | |
5229 | indexed by sort order. */ | |
5230 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5231 | { | |
5232 | int xlfd_idx = font_sort_order[i]; | |
5233 | ||
5234 | if (xlfd_idx == XLFD_SWIDTH) | |
5235 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5236 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5237 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5238 | else if (xlfd_idx == XLFD_WEIGHT) | |
5239 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5240 | else if (xlfd_idx == XLFD_SLANT) | |
5241 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5242 | else | |
5243 | abort (); | |
5244 | } | |
5245 | ||
5246 | #if SCALABLE_FONTS | |
5247 | ||
5248 | /* Set to 1 */ | |
5249 | exact_p = 0; | |
5250 | ||
5251 | /* Start with the first non-scalable font in the list. */ | |
5252 | for (i = 0; i < nfonts; ++i) | |
5253 | if (!font_scalable_p (fonts + i)) | |
5254 | break; | |
5255 | ||
5256 | /* Find the best match among the non-scalable fonts. */ | |
5257 | if (i < nfonts) | |
5258 | { | |
5259 | best = fonts + i; | |
5260 | ||
5261 | for (i = 1; i < nfonts; ++i) | |
5262 | if (!font_scalable_p (fonts + i) | |
5263 | && better_font_p (specified, fonts + i, best, 1)) | |
5264 | { | |
5265 | best = fonts + i; | |
5266 | ||
5267 | exact_p = exact_face_match_p (specified, best); | |
5268 | if (exact_p) | |
5269 | break; | |
5270 | } | |
5271 | ||
5272 | } | |
5273 | else | |
5274 | best = NULL; | |
5275 | ||
5276 | /* Unless we found an exact match among non-scalable fonts, see if | |
5277 | we can find a better match among scalable fonts. */ | |
5278 | if (!exact_p) | |
5279 | { | |
5280 | /* A scalable font is better if | |
5281 | ||
5282 | 1. its weight, slant, swidth attributes are better, or. | |
5283 | ||
5284 | 2. the best non-scalable font doesn't have the required | |
5285 | point size, and the scalable fonts weight, slant, swidth | |
5286 | isn't worse. */ | |
5287 | ||
5288 | int non_scalable_has_exact_height_p; | |
5289 | ||
5290 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5291 | non_scalable_has_exact_height_p = 1; | |
5292 | else | |
5293 | non_scalable_has_exact_height_p = 0; | |
5294 | ||
5295 | for (i = 0; i < nfonts; ++i) | |
5296 | if (font_scalable_p (fonts + i)) | |
5297 | { | |
5298 | if (best == NULL | |
5299 | || better_font_p (specified, fonts + i, best, 0) | |
5300 | || (!non_scalable_has_exact_height_p | |
5301 | && !better_font_p (specified, best, fonts + i, 0))) | |
5302 | best = fonts + i; | |
5303 | } | |
5304 | } | |
5305 | ||
5306 | if (font_scalable_p (best)) | |
5307 | font_name = build_scalable_font_name (f, best, pt); | |
5308 | else | |
5309 | font_name = build_font_name (best); | |
5310 | ||
5311 | #else /* !SCALABLE_FONTS */ | |
5312 | ||
5313 | /* Find the best non-scalable font. */ | |
5314 | best = fonts; | |
5315 | ||
5316 | for (i = 1; i < nfonts; ++i) | |
5317 | { | |
5318 | xassert (!font_scalable_p (fonts + i)); | |
5319 | if (better_font_p (specified, fonts + i, best, 1)) | |
5320 | best = fonts + i; | |
5321 | } | |
5322 | ||
5323 | font_name = build_font_name (best); | |
5324 | ||
5325 | #endif /* !SCALABLE_FONTS */ | |
5326 | ||
5327 | /* Free font_name structures. */ | |
5328 | free_font_names (fonts, nfonts); | |
5329 | ||
5330 | return font_name; | |
5331 | } | |
5332 | ||
5333 | ||
5334 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5335 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5336 | of font_name structures for the fonts matched. Value is the number | |
5337 | of fonts found. */ | |
5338 | ||
5339 | static int | |
5340 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5341 | struct frame *f; | |
5342 | Lisp_Object *attrs; | |
5343 | char *pattern, *family, *registry; | |
5344 | struct font_name **fonts; | |
5345 | { | |
5346 | int nfonts; | |
5347 | ||
5348 | if (family == NULL) | |
5349 | family = LSTRDUPA (attrs[LFACE_FAMILY_INDEX]); | |
5350 | ||
5351 | nfonts = font_list (f, pattern, family, registry, fonts); | |
5352 | ||
5353 | if (nfonts == 0) | |
5354 | { | |
5355 | Lisp_Object alter; | |
5356 | ||
5357 | /* Try alternative font families from | |
5358 | Vface_alternative_font_family_alist. */ | |
5359 | alter = Fassoc (build_string (family), | |
5360 | Vface_alternative_font_family_alist); | |
5361 | if (CONSP (alter)) | |
5362 | for (alter = XCDR (alter); | |
5363 | CONSP (alter) && nfonts == 0; | |
5364 | alter = XCDR (alter)) | |
5365 | { | |
5366 | if (STRINGP (XCAR (alter))) | |
5367 | { | |
5368 | family = LSTRDUPA (XCAR (alter)); | |
5369 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5370 | } | |
5371 | } | |
5372 | ||
5373 | /* Try font family of the default face or "fixed". */ | |
5374 | if (nfonts == 0) | |
5375 | { | |
5376 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5377 | if (dflt) | |
5378 | family = LSTRDUPA (dflt->lface[LFACE_FAMILY_INDEX]); | |
5379 | else | |
5380 | family = "fixed"; | |
5381 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5382 | } | |
5383 | ||
5384 | /* Try any family with the given registry. */ | |
5385 | if (nfonts == 0) | |
5386 | nfonts = font_list (f, NULL, "*", registry, fonts); | |
5387 | } | |
5388 | ||
5389 | return nfonts; | |
5390 | } | |
5391 | ||
5392 | ||
5393 | /* Return the registry and encoding pattern that fonts for CHARSET | |
5394 | should match. Value is allocated from the heap. */ | |
5395 | ||
5396 | char * | |
5397 | x_charset_registry (charset) | |
5398 | int charset; | |
5399 | { | |
5400 | Lisp_Object prop, charset_plist; | |
5401 | char *registry; | |
5402 | ||
5403 | /* Get registry and encoding from the charset's plist. */ | |
5404 | charset_plist = CHARSET_TABLE_INFO (charset, CHARSET_PLIST_IDX); | |
5405 | prop = Fplist_get (charset_plist, Qx_charset_registry); | |
5406 | ||
5407 | if (STRINGP (prop)) | |
5408 | { | |
5409 | if (index (XSTRING (prop)->data, '-')) | |
5410 | registry = xstrdup (XSTRING (prop)->data); | |
5411 | else | |
5412 | { | |
5413 | /* If registry doesn't contain a `-', make it a pattern. */ | |
5414 | registry = (char *) xmalloc (STRING_BYTES (XSTRING (prop)) + 5); | |
5415 | strcpy (registry, XSTRING (prop)->data); | |
5416 | strcat (registry, "*-*"); | |
5417 | } | |
5418 | } | |
5419 | else if (STRINGP (Vface_default_registry)) | |
5420 | registry = xstrdup (XSTRING (Vface_default_registry)->data); | |
5421 | else | |
5422 | registry = xstrdup ("iso8859-1"); | |
5423 | ||
5424 | return registry; | |
5425 | } | |
5426 | ||
5427 | ||
5428 | /* Return the fontset id of the fontset name or alias name given by | |
5429 | the family attribute of ATTRS on frame F. Value is -1 if the | |
5430 | family attribute of ATTRS doesn't name a fontset. */ | |
5431 | ||
5432 | static int | |
5433 | face_fontset (f, attrs) | |
5434 | struct frame *f; | |
5435 | Lisp_Object *attrs; | |
5436 | { | |
5437 | Lisp_Object name = attrs[LFACE_FAMILY_INDEX]; | |
5438 | int fontset; | |
5439 | ||
5440 | name = Fquery_fontset (name, Qnil); | |
5441 | if (NILP (name)) | |
5442 | fontset = -1; | |
5443 | else | |
5444 | fontset = fs_query_fontset (f, XSTRING (name)->data); | |
5445 | ||
5446 | return fontset; | |
5447 | } | |
5448 | ||
5449 | ||
5450 | /* Get the font to use for the face realizing the fully-specified Lisp | |
5451 | face ATTRS for charset CHARSET on frame F. CHARSET < 0 means | |
5452 | unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use | |
5453 | in this case. Value is the font name which is allocated from the | |
5454 | heap (which means that it must be freed eventually). */ | |
5455 | ||
5456 | static char * | |
5457 | choose_face_font (f, attrs, charset, unibyte_registry) | |
5458 | struct frame *f; | |
5459 | Lisp_Object *attrs; | |
5460 | int charset; | |
5461 | Lisp_Object unibyte_registry; | |
5462 | { | |
5463 | struct font_name *fonts; | |
5464 | int nfonts; | |
5465 | char *registry; | |
5466 | ||
5467 | /* ATTRS must be fully-specified. */ | |
5468 | xassert (lface_fully_specified_p (attrs)); | |
5469 | ||
5470 | if (STRINGP (unibyte_registry)) | |
5471 | registry = xstrdup (XSTRING (unibyte_registry)->data); | |
5472 | else | |
5473 | registry = x_charset_registry (charset); | |
5474 | ||
5475 | nfonts = try_font_list (f, attrs, NULL, NULL, registry, &fonts); | |
5476 | xfree (registry); | |
5477 | return best_matching_font (f, attrs, fonts, nfonts); | |
5478 | } | |
5479 | ||
5480 | ||
5481 | /* Choose a font to use on frame F to display CHARSET using FONTSET | |
5482 | with Lisp face attributes specified by ATTRS. CHARSET may be any | |
5483 | valid charset except CHARSET_COMPOSITION. CHARSET < 0 means | |
5484 | unibyte text. If the fontset doesn't contain a font pattern for | |
5485 | charset, use the pattern for CHARSET_ASCII. Value is the font name | |
5486 | which is allocated from the heap and must be freed by the caller. */ | |
5487 | ||
5488 | static char * | |
5489 | choose_face_fontset_font (f, attrs, fontset, charset) | |
5490 | struct frame *f; | |
5491 | Lisp_Object *attrs; | |
5492 | int fontset, charset; | |
5493 | { | |
5494 | char *pattern; | |
5495 | char *font_name = NULL; | |
5496 | struct fontset_info *fontset_info; | |
5497 | struct font_name *fonts; | |
5498 | int nfonts; | |
5499 | ||
5500 | xassert (charset != CHARSET_COMPOSITION); | |
5501 | xassert (fontset >= 0 && fontset < FRAME_FONTSET_DATA (f)->n_fontsets); | |
5502 | ||
5503 | /* For unibyte text, use the ASCII font of the fontset. Using the | |
5504 | ASCII font seems to be the most reasonable thing we can do in | |
5505 | this case. */ | |
5506 | if (charset < 0) | |
5507 | charset = CHARSET_ASCII; | |
5508 | ||
5509 | /* Get the font name pattern to use for CHARSET from the fontset. */ | |
5510 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
5511 | pattern = fontset_info->fontname[charset]; | |
5512 | if (!pattern) | |
5513 | pattern = fontset_info->fontname[CHARSET_ASCII]; | |
5514 | xassert (pattern); | |
5515 | ||
5516 | /* Get a list of fonts matching that pattern and choose the | |
5517 | best match for the specified face attributes from it. */ | |
5518 | nfonts = try_font_list (f, attrs, pattern, NULL, NULL, &fonts); | |
5519 | font_name = best_matching_font (f, attrs, fonts, nfonts); | |
5520 | return font_name; | |
5521 | } | |
5522 | ||
5523 | #endif /* HAVE_X_WINDOWS */ | |
5524 | ||
5525 | ||
5526 | \f | |
5527 | /*********************************************************************** | |
5528 | Face Realization | |
5529 | ***********************************************************************/ | |
5530 | ||
5531 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5532 | of F don't contain enough information needed to realize the default | |
5533 | face. */ | |
5534 | ||
5535 | static int | |
5536 | realize_basic_faces (f) | |
5537 | struct frame *f; | |
5538 | { | |
5539 | int success_p = 0; | |
5540 | ||
5541 | if (realize_default_face (f)) | |
5542 | { | |
92610620 | 5543 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5544 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5545 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5546 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5547 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5548 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5549 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5550 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5551 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
82641697 GM |
5552 | success_p = 1; |
5553 | } | |
5554 | ||
5555 | return success_p; | |
5556 | } | |
5557 | ||
5558 | ||
5559 | /* Realize the default face on frame F. If the face is not fully | |
5560 | specified, make it fully-specified. Attributes of the default face | |
5561 | that are not explicitly specified are taken from frame parameters. */ | |
5562 | ||
5563 | static int | |
5564 | realize_default_face (f) | |
5565 | struct frame *f; | |
5566 | { | |
5567 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5568 | Lisp_Object lface; | |
5569 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5570 | Lisp_Object unibyte_registry; | |
5571 | Lisp_Object frame_font; | |
5572 | struct face *face; | |
5573 | int fontset; | |
5574 | ||
5575 | /* If the `default' face is not yet known, create it. */ | |
5576 | lface = lface_from_face_name (f, Qdefault, 0); | |
5577 | if (NILP (lface)) | |
5578 | { | |
5579 | Lisp_Object frame; | |
5580 | XSETFRAME (frame, f); | |
5581 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5582 | } | |
5583 | ||
5584 | #ifdef HAVE_X_WINDOWS | |
5585 | if (FRAME_X_P (f)) | |
5586 | { | |
5587 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5588 | frame_font = Fassq (Qfont, f->param_alist); | |
5589 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5590 | frame_font = XCDR (frame_font); | |
5591 | ||
5592 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
5593 | if (fontset >= 0) | |
5594 | { | |
5595 | /* If frame_font is a fontset name, don't use that for | |
5596 | determining font-related attributes of the default face | |
5597 | because it is just an artificial name. Use the ASCII font of | |
5598 | the fontset, instead. */ | |
5599 | struct font_info *font_info; | |
5600 | struct font_name font; | |
5601 | ||
5602 | BLOCK_INPUT; | |
5603 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
5604 | NULL, fontset); | |
5605 | UNBLOCK_INPUT; | |
5606 | ||
5607 | /* Set weight etc. from the ASCII font. */ | |
3221576b | 5608 | if (!set_lface_from_font_name (f, lface, font_info->full_name, 0, 0)) |
82641697 GM |
5609 | return 0; |
5610 | ||
5611 | /* Remember registry and encoding of the frame font. */ | |
5612 | unibyte_registry = deduce_unibyte_registry (f, font_info->full_name); | |
5613 | if (STRINGP (unibyte_registry)) | |
5614 | Vface_default_registry = unibyte_registry; | |
5615 | else | |
5616 | Vface_default_registry = build_string ("iso8859-1"); | |
5617 | ||
5618 | /* But set the family to the fontset alias name. Implementation | |
5619 | note: When a font is passed to Emacs via `-fn FONT', a | |
5620 | fontset is created in `x-win.el' whose name ends in | |
5621 | `fontset-startup'. This fontset has an alias name that is | |
5622 | equal to frame_font. */ | |
5623 | xassert (STRINGP (frame_font)); | |
5624 | font.name = LSTRDUPA (frame_font); | |
5625 | ||
5626 | if (!split_font_name (f, &font, 1) | |
5627 | || xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0 | |
5628 | || xstricmp (font.fields[XLFD_ENCODING], "startup") != 0) | |
5629 | LFACE_FAMILY (lface) = frame_font; | |
5630 | } | |
5631 | else | |
5632 | { | |
5633 | /* Frame parameters contain a real font. Fill default face | |
5634 | attributes from that font. */ | |
5635 | if (!set_lface_from_font_name (f, lface, | |
3221576b | 5636 | XSTRING (frame_font)->data, 0, 0)) |
82641697 GM |
5637 | return 0; |
5638 | ||
5639 | /* Remember registry and encoding of the frame font. */ | |
5640 | unibyte_registry | |
5641 | = deduce_unibyte_registry (f, XSTRING (frame_font)->data); | |
5642 | if (STRINGP (unibyte_registry)) | |
5643 | Vface_default_registry = unibyte_registry; | |
5644 | else | |
5645 | Vface_default_registry = build_string ("iso8859-1"); | |
5646 | } | |
5647 | } | |
5648 | #endif /* HAVE_X_WINDOWS */ | |
5649 | ||
44747bd0 | 5650 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5651 | { |
5652 | LFACE_FAMILY (lface) = build_string ("default"); | |
5653 | LFACE_SWIDTH (lface) = Qnormal; | |
5654 | LFACE_HEIGHT (lface) = make_number (1); | |
5655 | LFACE_WEIGHT (lface) = Qnormal; | |
5656 | LFACE_SLANT (lface) = Qnormal; | |
5657 | } | |
5658 | ||
5659 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) | |
5660 | LFACE_UNDERLINE (lface) = Qnil; | |
5661 | ||
5662 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) | |
5663 | LFACE_OVERLINE (lface) = Qnil; | |
5664 | ||
5665 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) | |
5666 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
5667 | ||
5668 | if (UNSPECIFIEDP (LFACE_BOX (lface))) | |
5669 | LFACE_BOX (lface) = Qnil; | |
5670 | ||
5671 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) | |
5672 | LFACE_INVERSE (lface) = Qnil; | |
5673 | ||
5674 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
5675 | { | |
5676 | /* This function is called so early that colors are not yet | |
5677 | set in the frame parameter list. */ | |
5678 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
5679 | ||
5680 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5681 | LFACE_FOREGROUND (lface) = XCDR (color); | |
5682 | else if (FRAME_X_P (f)) | |
5683 | return 0; | |
2d764c78 | 5684 | else if (!FRAME_TERMCAP_P (f) && !FRAME_MSDOS_P (f)) |
82641697 GM |
5685 | abort (); |
5686 | } | |
5687 | ||
5688 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
5689 | { | |
5690 | /* This function is called so early that colors are not yet | |
5691 | set in the frame parameter list. */ | |
5692 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5693 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5694 | LFACE_BACKGROUND (lface) = XCDR (color); | |
5695 | else if (FRAME_X_P (f)) | |
5696 | return 0; | |
2d764c78 | 5697 | else if (!FRAME_TERMCAP_P (f) && !FRAME_MSDOS_P (f)) |
82641697 GM |
5698 | abort (); |
5699 | } | |
5700 | ||
5701 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) | |
5702 | LFACE_STIPPLE (lface) = Qnil; | |
5703 | ||
5704 | /* Realize the face; it must be fully-specified now. */ | |
5705 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5706 | check_lface (lface); | |
5707 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
5708 | face = realize_face (c, attrs, CHARSET_ASCII); | |
5709 | ||
5710 | /* Remove the former default face. */ | |
5711 | if (c->used > DEFAULT_FACE_ID) | |
5712 | { | |
5713 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5714 | uncache_face (c, default_face); | |
5715 | free_realized_face (f, default_face); | |
5716 | } | |
5717 | ||
5718 | /* Insert the new default face. */ | |
5719 | cache_face (c, face, lface_hash (attrs)); | |
5720 | xassert (face->id == DEFAULT_FACE_ID); | |
5721 | return 1; | |
5722 | } | |
5723 | ||
5724 | ||
5725 | /* Realize basic faces other than the default face in face cache C. | |
5726 | SYMBOL is the face name, ID is the face id the realized face must | |
5727 | have. The default face must have been realized already. */ | |
5728 | ||
5729 | static void | |
5730 | realize_named_face (f, symbol, id) | |
5731 | struct frame *f; | |
5732 | Lisp_Object symbol; | |
5733 | int id; | |
5734 | { | |
5735 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5736 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
5737 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5738 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5739 | struct face *new_face; | |
5740 | ||
5741 | /* The default face must exist and be fully specified. */ | |
5742 | get_lface_attributes (f, Qdefault, attrs, 1); | |
5743 | check_lface_attrs (attrs); | |
5744 | xassert (lface_fully_specified_p (attrs)); | |
5745 | ||
5746 | /* If SYMBOL isn't know as a face, create it. */ | |
5747 | if (NILP (lface)) | |
5748 | { | |
5749 | Lisp_Object frame; | |
5750 | XSETFRAME (frame, f); | |
5751 | lface = Finternal_make_lisp_face (symbol, frame); | |
5752 | } | |
5753 | ||
5754 | /* Merge SYMBOL's face with the default face. */ | |
5755 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5756 | merge_face_vectors (symbol_attrs, attrs); | |
5757 | ||
5758 | /* Realize the face. */ | |
5759 | new_face = realize_face (c, attrs, CHARSET_ASCII); | |
5760 | ||
5761 | /* Remove the former face. */ | |
5762 | if (c->used > id) | |
5763 | { | |
5764 | struct face *old_face = c->faces_by_id[id]; | |
5765 | uncache_face (c, old_face); | |
5766 | free_realized_face (f, old_face); | |
5767 | } | |
5768 | ||
5769 | /* Insert the new face. */ | |
5770 | cache_face (c, new_face, lface_hash (attrs)); | |
5771 | xassert (new_face->id == id); | |
5772 | } | |
5773 | ||
5774 | ||
5775 | /* Realize the fully-specified face with attributes ATTRS in face | |
5776 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5777 | 0. Value is a pointer to the newly created realized face. */ | |
5778 | ||
5779 | static struct face * | |
5780 | realize_face (c, attrs, charset) | |
5781 | struct face_cache *c; | |
5782 | Lisp_Object *attrs; | |
5783 | int charset; | |
5784 | { | |
5785 | struct face *face; | |
5786 | ||
5787 | /* LFACE must be fully specified. */ | |
5788 | xassert (c != NULL); | |
5789 | check_lface_attrs (attrs); | |
5790 | ||
5791 | if (FRAME_X_P (c->f)) | |
5792 | face = realize_x_face (c, attrs, charset); | |
44747bd0 | 5793 | else if (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)) |
82641697 GM |
5794 | face = realize_tty_face (c, attrs, charset); |
5795 | else | |
5796 | abort (); | |
5797 | ||
5798 | return face; | |
5799 | } | |
5800 | ||
5801 | ||
5802 | /* Realize the fully-specified face with attributes ATTRS in face | |
5803 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5804 | 0. Do it for X frame C->f. Value is a pointer to the newly | |
5805 | created realized face. */ | |
5806 | ||
5807 | static struct face * | |
5808 | realize_x_face (c, attrs, charset) | |
5809 | struct face_cache *c; | |
5810 | Lisp_Object *attrs; | |
5811 | int charset; | |
5812 | { | |
5813 | #ifdef HAVE_X_WINDOWS | |
5814 | struct face *face, *default_face; | |
5815 | struct frame *f = c->f; | |
5816 | Lisp_Object stipple, overline, strike_through, box; | |
5817 | Lisp_Object unibyte_registry; | |
5818 | struct gcpro gcpro1; | |
5819 | ||
5820 | xassert (FRAME_X_P (f)); | |
5821 | ||
5822 | /* If realizing a face for use in unibyte text, get the X registry | |
5823 | and encoding to use from Vface_default_registry. */ | |
5824 | if (charset < 0) | |
5825 | unibyte_registry = (STRINGP (Vface_default_registry) | |
5826 | ? Vface_default_registry | |
5827 | : build_string ("iso8859-1")); | |
5828 | else | |
5829 | unibyte_registry = Qnil; | |
5830 | GCPRO1 (unibyte_registry); | |
5831 | ||
5832 | /* Allocate a new realized face. */ | |
5833 | face = make_realized_face (attrs, charset, unibyte_registry); | |
5834 | ||
5835 | /* Determine the font to use. Most of the time, the font will be | |
5836 | the same as the font of the default face, so try that first. */ | |
5837 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5838 | if (default_face | |
5839 | && FACE_SUITABLE_FOR_CHARSET_P (default_face, charset) | |
5840 | && lface_same_font_attributes_p (default_face->lface, attrs)) | |
5841 | { | |
5842 | face->font = default_face->font; | |
5843 | face->fontset = default_face->fontset; | |
5844 | face->font_info_id = default_face->font_info_id; | |
5845 | face->font_name = default_face->font_name; | |
5846 | face->registry = default_face->registry; | |
5847 | } | |
5848 | else if (charset >= 0) | |
5849 | { | |
5850 | /* For all charsets except CHARSET_COMPOSITION, we use our own | |
5851 | font selection functions to choose a best matching font for | |
5852 | the specified face attributes. If the face specifies a | |
5853 | fontset alias name, the fontset determines the font name | |
5854 | pattern, otherwise we construct a font pattern from face | |
5855 | attributes and charset. | |
5856 | ||
5857 | If charset is CHARSET_COMPOSITION, we always construct a face | |
5858 | with a fontset, even if the face doesn't specify a fontset alias | |
5859 | (we use fontset-standard in that case). When the composite | |
5860 | character is displayed in xterm.c, a suitable concrete font is | |
5861 | loaded in x_get_char_font_and_encoding. */ | |
5862 | ||
5863 | char *font_name = NULL; | |
5864 | int fontset = face_fontset (f, attrs); | |
5865 | ||
5866 | if (charset == CHARSET_COMPOSITION) | |
5867 | fontset = max (0, fontset); | |
5868 | else if (fontset < 0) | |
5869 | font_name = choose_face_font (f, attrs, charset, Qnil); | |
5870 | else | |
5871 | { | |
5872 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5873 | fontset = -1; | |
5874 | } | |
5875 | ||
5876 | load_face_font_or_fontset (f, face, font_name, fontset); | |
5877 | xfree (font_name); | |
5878 | } | |
5879 | else | |
5880 | { | |
5881 | /* Unibyte case, and font is not equal to that of the default | |
5882 | face. UNIBYTE_REGISTRY is the X registry and encoding the | |
5883 | font should have. What is a reasonable thing to do if the | |
5884 | user specified a fontset alias name for the face in this | |
5885 | case? We choose a font by taking the ASCII font of the | |
5886 | fontset, but using UNIBYTE_REGISTRY for its registry and | |
5887 | encoding. */ | |
5888 | ||
5889 | char *font_name = NULL; | |
5890 | int fontset = face_fontset (f, attrs); | |
5891 | ||
5892 | if (fontset < 0) | |
5893 | font_name = choose_face_font (f, attrs, charset, unibyte_registry); | |
5894 | else | |
5895 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5896 | ||
5897 | load_face_font_or_fontset (f, face, font_name, -1); | |
5898 | xfree (font_name); | |
5899 | } | |
5900 | ||
5901 | /* Load colors, and set remaining attributes. */ | |
5902 | ||
5903 | load_face_colors (f, face, attrs); | |
660ed669 | 5904 | |
82641697 GM |
5905 | /* Set up box. */ |
5906 | box = attrs[LFACE_BOX_INDEX]; | |
5907 | if (STRINGP (box)) | |
cb637678 | 5908 | { |
82641697 GM |
5909 | /* A simple box of line width 1 drawn in color given by |
5910 | the string. */ | |
5911 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5912 | LFACE_BOX_INDEX); | |
5913 | face->box = FACE_SIMPLE_BOX; | |
5914 | face->box_line_width = 1; | |
cb637678 | 5915 | } |
82641697 | 5916 | else if (INTEGERP (box)) |
42120bc7 | 5917 | { |
82641697 GM |
5918 | /* Simple box of specified line width in foreground color of the |
5919 | face. */ | |
5920 | xassert (XINT (box) > 0); | |
5921 | face->box = FACE_SIMPLE_BOX; | |
5922 | face->box_line_width = XFASTINT (box); | |
5923 | face->box_color = face->foreground; | |
5924 | face->box_color_defaulted_p = 1; | |
5925 | } | |
5926 | else if (CONSP (box)) | |
5927 | { | |
5928 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5929 | being one of `raised' or `sunken'. */ | |
5930 | face->box = FACE_SIMPLE_BOX; | |
5931 | face->box_color = face->foreground; | |
5932 | face->box_color_defaulted_p = 1; | |
5933 | face->box_line_width = 1; | |
5934 | ||
5935 | while (CONSP (box)) | |
42120bc7 | 5936 | { |
82641697 GM |
5937 | Lisp_Object keyword, value; |
5938 | ||
5939 | keyword = XCAR (box); | |
5940 | box = XCDR (box); | |
5941 | ||
5942 | if (!CONSP (box)) | |
5943 | break; | |
5944 | value = XCAR (box); | |
5945 | box = XCDR (box); | |
5946 | ||
5947 | if (EQ (keyword, QCline_width)) | |
5948 | { | |
5949 | if (INTEGERP (value) && XINT (value) > 0) | |
5950 | face->box_line_width = XFASTINT (value); | |
5951 | } | |
5952 | else if (EQ (keyword, QCcolor)) | |
5953 | { | |
5954 | if (STRINGP (value)) | |
5955 | { | |
5956 | face->box_color = load_color (f, face, value, | |
5957 | LFACE_BOX_INDEX); | |
5958 | face->use_box_color_for_shadows_p = 1; | |
5959 | } | |
5960 | } | |
5961 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5962 | { |
82641697 GM |
5963 | if (EQ (value, Qreleased_button)) |
5964 | face->box = FACE_RAISED_BOX; | |
5965 | else if (EQ (value, Qpressed_button)) | |
5966 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5967 | } |
42120bc7 RS |
5968 | } |
5969 | } | |
195f798e | 5970 | |
82641697 GM |
5971 | /* Text underline, overline, strike-through. */ |
5972 | ||
5973 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) | |
5974 | { | |
5975 | /* Use default color (same as foreground color). */ | |
5976 | face->underline_p = 1; | |
5977 | face->underline_defaulted_p = 1; | |
5978 | face->underline_color = 0; | |
5979 | } | |
5980 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 5981 | { |
82641697 GM |
5982 | /* Use specified color. */ |
5983 | face->underline_p = 1; | |
5984 | face->underline_defaulted_p = 0; | |
5985 | face->underline_color | |
5986 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
5987 | LFACE_UNDERLINE_INDEX); | |
195f798e | 5988 | } |
82641697 | 5989 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 5990 | { |
82641697 GM |
5991 | face->underline_p = 0; |
5992 | face->underline_defaulted_p = 0; | |
5993 | face->underline_color = 0; | |
7b00de84 JB |
5994 | } |
5995 | ||
82641697 GM |
5996 | overline = attrs[LFACE_OVERLINE_INDEX]; |
5997 | if (STRINGP (overline)) | |
cb637678 | 5998 | { |
82641697 GM |
5999 | face->overline_color |
6000 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6001 | LFACE_OVERLINE_INDEX); | |
6002 | face->overline_p = 1; | |
cb637678 | 6003 | } |
82641697 | 6004 | else if (EQ (overline, Qt)) |
cb637678 | 6005 | { |
82641697 GM |
6006 | face->overline_color = face->foreground; |
6007 | face->overline_color_defaulted_p = 1; | |
6008 | face->overline_p = 1; | |
cb637678 JB |
6009 | } |
6010 | ||
82641697 GM |
6011 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6012 | if (STRINGP (strike_through)) | |
6013 | { | |
6014 | face->strike_through_color | |
6015 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6016 | LFACE_STRIKE_THROUGH_INDEX); | |
6017 | face->strike_through_p = 1; | |
6018 | } | |
6019 | else if (EQ (strike_through, Qt)) | |
6020 | { | |
6021 | face->strike_through_color = face->foreground; | |
6022 | face->strike_through_color_defaulted_p = 1; | |
6023 | face->strike_through_p = 1; | |
6024 | } | |
867dd159 | 6025 | |
82641697 GM |
6026 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6027 | if (!NILP (stipple)) | |
6028 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6029 | |
82641697 GM |
6030 | UNGCPRO; |
6031 | xassert (face->fontset < 0 || face->charset == CHARSET_COMPOSITION); | |
6032 | xassert (FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
6033 | return face; | |
6034 | #endif /* HAVE_X_WINDOWS */ | |
660ed669 JB |
6035 | } |
6036 | ||
729425b1 | 6037 | |
82641697 GM |
6038 | /* Realize the fully-specified face with attributes ATTRS in face |
6039 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
6040 | 0. Do it for TTY frame C->f. Value is a pointer to the newly | |
6041 | created realized face. */ | |
a8517066 | 6042 | |
82641697 GM |
6043 | static struct face * |
6044 | realize_tty_face (c, attrs, charset) | |
6045 | struct face_cache *c; | |
6046 | Lisp_Object *attrs; | |
6047 | int charset; | |
6048 | { | |
6049 | struct face *face; | |
6050 | int weight, slant; | |
6051 | Lisp_Object color; | |
2d764c78 EZ |
6052 | Lisp_Object tty_color_alist = Fsymbol_value (intern ("tty-color-alist")); |
6053 | int face_colors_defaulted = 0; | |
729425b1 | 6054 | |
82641697 | 6055 | /* Frame must be a termcap frame. */ |
44747bd0 | 6056 | xassert (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)); |
82641697 GM |
6057 | |
6058 | /* Allocate a new realized face. */ | |
6059 | face = make_realized_face (attrs, charset, Qnil); | |
44747bd0 | 6060 | face->font_name = FRAME_MSDOS_P (c->f) ? "ms-dos" : "tty"; |
82641697 GM |
6061 | |
6062 | /* Map face attributes to TTY appearances. We map slant to | |
6063 | dimmed text because we want italic text to appear differently | |
6064 | and because dimmed text is probably used infrequently. */ | |
6065 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6066 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6067 | ||
6068 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6069 | face->tty_bold_p = 1; | |
6070 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6071 | face->tty_dim_p = 1; | |
6072 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6073 | face->tty_underline_p = 1; | |
6074 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6075 | face->tty_reverse_p = 1; | |
6076 | ||
6077 | /* Map color names to color indices. */ | |
6078 | face->foreground = face->background = FACE_TTY_DEFAULT_COLOR; | |
6079 | ||
6080 | color = attrs[LFACE_FOREGROUND_INDEX]; | |
2d764c78 EZ |
6081 | if (STRINGP (color) |
6082 | && XSTRING (color)->size | |
6083 | && !NILP (tty_color_alist) | |
6084 | && (color = Fassoc (color, tty_color_alist), | |
82641697 | 6085 | CONSP (color))) |
2d764c78 EZ |
6086 | /* Associations in tty-color-alist are of the form |
6087 | (NAME INDEX R G B). We need the INDEX part. */ | |
6088 | face->foreground = XINT (XCAR (XCDR (color))); | |
82641697 | 6089 | |
2d764c78 EZ |
6090 | if (face->foreground == FACE_TTY_DEFAULT_COLOR |
6091 | && STRINGP (attrs[LFACE_FOREGROUND_INDEX])) | |
1697ca38 EZ |
6092 | { |
6093 | face->foreground = load_color (c->f, face, | |
6094 | attrs[LFACE_FOREGROUND_INDEX], | |
6095 | LFACE_FOREGROUND_INDEX); | |
2d764c78 | 6096 | #ifdef MSDOS |
1697ca38 EZ |
6097 | /* If the foreground of the default face is the default color, |
6098 | use the foreground color defined by the frame. */ | |
2d764c78 | 6099 | if (FRAME_MSDOS_P (c->f) && face->foreground == FACE_TTY_DEFAULT_COLOR) |
1697ca38 EZ |
6100 | { |
6101 | face->foreground = FRAME_FOREGROUND_PIXEL (f); | |
6102 | attrs[LFACE_FOREGROUND_INDEX] = | |
2d764c78 EZ |
6103 | msdos_stdcolor_name (face->foreground); |
6104 | face_colors_defaulted = 1; | |
1697ca38 | 6105 | } |
44747bd0 | 6106 | #endif |
2d764c78 | 6107 | } |
44747bd0 | 6108 | |
82641697 | 6109 | color = attrs[LFACE_BACKGROUND_INDEX]; |
2d764c78 EZ |
6110 | if (STRINGP (color) |
6111 | && XSTRING (color)->size | |
6112 | && !NILP (tty_color_alist) | |
6113 | && (color = Fassoc (color, tty_color_alist), | |
82641697 | 6114 | CONSP (color))) |
2d764c78 EZ |
6115 | /* Associations in tty-color-alist are of the form |
6116 | (NAME INDEX R G B). We need the INDEX part. */ | |
6117 | face->background = XINT (XCAR (XCDR (color))); | |
729425b1 | 6118 | |
2d764c78 EZ |
6119 | if (face->background == FACE_TTY_DEFAULT_COLOR |
6120 | && STRINGP (attrs[LFACE_BACKGROUND_INDEX])) | |
1697ca38 EZ |
6121 | { |
6122 | face->background = load_color (c->f, face, | |
6123 | attrs[LFACE_BACKGROUND_INDEX], | |
6124 | LFACE_BACKGROUND_INDEX); | |
2d764c78 | 6125 | #ifdef MSDOS |
1697ca38 EZ |
6126 | /* If the background of the default face is the default color, |
6127 | use the background color defined by the frame. */ | |
2d764c78 | 6128 | if (FRAME_MSDOS_P (c->f) && face->background == FACE_TTY_DEFAULT_COLOR) |
1697ca38 EZ |
6129 | { |
6130 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
6131 | attrs[LFACE_BACKGROUND_INDEX] = | |
2d764c78 EZ |
6132 | msdos_stdcolor_name (face->background); |
6133 | face_colors_defaulted = 1; | |
1697ca38 | 6134 | } |
2d764c78 | 6135 | #endif |
1697ca38 | 6136 | } |
44747bd0 | 6137 | |
2d764c78 EZ |
6138 | /* Swap colors if face is inverse-video. If the colors are taken |
6139 | from the frame colors, they are already inverted, since the | |
6140 | frame-creation function calls x-handle-reverse-video. */ | |
6141 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6142 | { |
6143 | unsigned long tem = face->foreground; | |
6144 | ||
6145 | face->foreground = face->background; | |
6146 | face->background = tem; | |
6147 | } | |
44747bd0 | 6148 | |
82641697 | 6149 | return face; |
729425b1 | 6150 | } |
867dd159 | 6151 | |
82641697 | 6152 | |
82641697 GM |
6153 | \f |
6154 | /*********************************************************************** | |
6155 | Computing Faces | |
6156 | ***********************************************************************/ | |
6157 | ||
6158 | /* Return the ID of the face to use to display character CH with face | |
6159 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6160 | |
6161 | int | |
82641697 | 6162 | compute_char_face (f, ch, prop) |
2e16580f | 6163 | struct frame *f; |
82641697 GM |
6164 | int ch; |
6165 | Lisp_Object prop; | |
2e16580f | 6166 | { |
82641697 GM |
6167 | int face_id; |
6168 | int charset = (NILP (current_buffer->enable_multibyte_characters) | |
6169 | ? -1 | |
6170 | : CHAR_CHARSET (ch)); | |
6171 | ||
6172 | if (NILP (prop)) | |
6173 | face_id = FACE_FOR_CHARSET (f, DEFAULT_FACE_ID, charset); | |
6174 | else | |
2e16580f | 6175 | { |
82641697 GM |
6176 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6177 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6178 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6179 | merge_face_vector_with_property (f, attrs, prop); | |
6180 | face_id = lookup_face (f, attrs, charset); | |
2e16580f RS |
6181 | } |
6182 | ||
82641697 | 6183 | return face_id; |
2e16580f | 6184 | } |
bc0db68d | 6185 | |
b349f4fb | 6186 | |
82641697 GM |
6187 | /* Return the face ID associated with buffer position POS for |
6188 | displaying ASCII characters. Return in *ENDPTR the position at | |
6189 | which a different face is needed, as far as text properties and | |
6190 | overlays are concerned. W is a window displaying current_buffer. | |
6191 | ||
6192 | REGION_BEG, REGION_END delimit the region, so it can be | |
6193 | highlighted. | |
6f134486 | 6194 | |
82641697 GM |
6195 | LIMIT is a position not to scan beyond. That is to limit the time |
6196 | this function can take. | |
6197 | ||
6198 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6199 | ||
6200 | The face returned is suitable for displaying CHARSET_ASCII if | |
6201 | current_buffer->enable_multibyte_characters is non-nil. Otherwise, | |
6202 | the face is suitable for displaying unibyte text. */ | |
bc0db68d | 6203 | |
cb637678 | 6204 | int |
82641697 GM |
6205 | face_at_buffer_position (w, pos, region_beg, region_end, |
6206 | endptr, limit, mouse) | |
f211082d | 6207 | struct window *w; |
7b7739b1 | 6208 | int pos; |
bc0db68d | 6209 | int region_beg, region_end; |
7b7739b1 | 6210 | int *endptr; |
b349f4fb | 6211 | int limit; |
6f134486 | 6212 | int mouse; |
7b7739b1 | 6213 | { |
82641697 GM |
6214 | struct frame *f = XFRAME (w->frame); |
6215 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6216 | Lisp_Object prop, position; |
82641697 | 6217 | int i, noverlays; |
7b7739b1 | 6218 | Lisp_Object *overlay_vec; |
f211082d | 6219 | Lisp_Object frame; |
f6b98e0b | 6220 | int endpos; |
82641697 GM |
6221 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6222 | Lisp_Object limit1, end; | |
6223 | struct face *default_face; | |
6224 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
6225 | |
6226 | /* W must display the current buffer. We could write this function | |
6227 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6228 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6229 | |
ac22a6c4 | 6230 | XSETFRAME (frame, f); |
82641697 | 6231 | XSETFASTINT (position, pos); |
7b7739b1 | 6232 | |
f6b98e0b | 6233 | endpos = ZV; |
bc0db68d RS |
6234 | if (pos < region_beg && region_beg < endpos) |
6235 | endpos = region_beg; | |
f6b98e0b | 6236 | |
82641697 GM |
6237 | /* Get the `face' or `mouse_face' text property at POS, and |
6238 | determine the next position at which the property changes. */ | |
6f134486 | 6239 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6240 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6241 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6242 | if (INTEGERP (end)) | |
6243 | endpos = XINT (end); | |
6f134486 | 6244 | |
82641697 | 6245 | /* Look at properties from overlays. */ |
b6d40e46 | 6246 | { |
f6b98e0b | 6247 | int next_overlay; |
9516fe94 RS |
6248 | int len; |
6249 | ||
6250 | /* First try with room for 40 overlays. */ | |
6251 | len = 40; | |
6252 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6253 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6254 | &next_overlay, NULL); |
9516fe94 | 6255 | |
82641697 GM |
6256 | /* If there are more than 40, make enough space for all, and try |
6257 | again. */ | |
9516fe94 RS |
6258 | if (noverlays > len) |
6259 | { | |
6260 | len = noverlays; | |
6261 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6262 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6263 | &next_overlay, NULL); |
9516fe94 | 6264 | } |
b6d40e46 | 6265 | |
f6b98e0b JB |
6266 | if (next_overlay < endpos) |
6267 | endpos = next_overlay; | |
b6d40e46 JB |
6268 | } |
6269 | ||
6270 | *endptr = endpos; | |
7b7739b1 | 6271 | |
82641697 GM |
6272 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6273 | ||
6274 | /* Optimize common cases where we can use the default face. */ | |
6275 | if (noverlays == 0 | |
6276 | && NILP (prop) | |
6277 | && !(pos >= region_beg && pos < region_end) | |
6278 | && (multibyte_p | |
6279 | || !FRAME_WINDOW_P (f) | |
6280 | || FACE_SUITABLE_FOR_CHARSET_P (default_face, -1))) | |
6281 | return DEFAULT_FACE_ID; | |
6282 | ||
6283 | /* Begin with attributes from the default face. */ | |
6284 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6285 | ||
6286 | /* Merge in attributes specified via text properties. */ | |
6287 | if (!NILP (prop)) | |
6288 | merge_face_vector_with_property (f, attrs, prop); | |
6289 | ||
6290 | /* Now merge the overlay data. */ | |
18195655 | 6291 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6292 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6293 | { |
18195655 RS |
6294 | Lisp_Object oend; |
6295 | int oendpos; | |
6296 | ||
6297 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6298 | if (!NILP (prop)) |
6299 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6300 | |
6301 | oend = OVERLAY_END (overlay_vec[i]); | |
6302 | oendpos = OVERLAY_POSITION (oend); | |
6303 | if (oendpos < endpos) | |
6304 | endpos = oendpos; | |
6305 | } | |
6306 | ||
82641697 | 6307 | /* If in the region, merge in the region face. */ |
18195655 RS |
6308 | if (pos >= region_beg && pos < region_end) |
6309 | { | |
82641697 GM |
6310 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6311 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
6312 | ||
18195655 RS |
6313 | if (region_end < endpos) |
6314 | endpos = region_end; | |
18195655 RS |
6315 | } |
6316 | ||
6317 | *endptr = endpos; | |
6318 | ||
82641697 GM |
6319 | /* Look up a realized face with the given face attributes, |
6320 | or realize a new one. Charset is ignored for tty frames. */ | |
6321 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
18195655 RS |
6322 | } |
6323 | ||
60573a90 | 6324 | |
82641697 GM |
6325 | /* Compute the face at character position POS in Lisp string STRING on |
6326 | window W, for charset CHARSET_ASCII. | |
7b7739b1 | 6327 | |
82641697 GM |
6328 | If STRING is an overlay string, it comes from position BUFPOS in |
6329 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6330 | not an overlay string. W must display the current buffer. | |
6331 | REGION_BEG and REGION_END give the start and end positions of the | |
6332 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6333 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6334 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 GM |
6335 | for strings displayed in the mode or top line. |
6336 | ||
6337 | Set *ENDPTR to the next position where to check for faces in | |
6338 | STRING; -1 if the face is constant from POS to the end of the | |
6339 | string. | |
18195655 | 6340 | |
82641697 GM |
6341 | Value is the id of the face to use. The face returned is suitable |
6342 | for displaying CHARSET_ASCII if STRING is multibyte. Otherwise, | |
6343 | the face is suitable for displaying unibyte text. */ | |
fffc2367 | 6344 | |
82641697 GM |
6345 | int |
6346 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6347 | region_end, endptr, base_face_id) | |
6348 | struct window *w; | |
6349 | Lisp_Object string; | |
6350 | int pos, bufpos; | |
6351 | int region_beg, region_end; | |
6352 | int *endptr; | |
6353 | enum face_id base_face_id; | |
660ed669 | 6354 | { |
82641697 GM |
6355 | Lisp_Object prop, position, end, limit; |
6356 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6357 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6358 | struct face *base_face; | |
6359 | int multibyte_p = STRING_MULTIBYTE (string); | |
6360 | ||
6361 | /* Get the value of the face property at the current position within | |
6362 | STRING. Value is nil if there is no face property. */ | |
6363 | XSETFASTINT (position, pos); | |
6364 | prop = Fget_text_property (position, Qface, string); | |
6365 | ||
6366 | /* Get the next position at which to check for faces. Value of end | |
6367 | is nil if face is constant all the way to the end of the string. | |
6368 | Otherwise it is a string position where to check faces next. | |
6369 | Limit is the maximum position up to which to check for property | |
6370 | changes in Fnext_single_property_change. Strings are usually | |
6371 | short, so set the limit to the end of the string. */ | |
6372 | XSETFASTINT (limit, XSTRING (string)->size); | |
6373 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6374 | if (INTEGERP (end)) | |
6375 | *endptr = XFASTINT (end); | |
6376 | else | |
6377 | *endptr = -1; | |
6378 | ||
6379 | base_face = FACE_FROM_ID (f, base_face_id); | |
6380 | xassert (base_face); | |
6381 | ||
6382 | /* Optimize the default case that there is no face property and we | |
6383 | are not in the region. */ | |
6384 | if (NILP (prop) | |
6385 | && (base_face_id != DEFAULT_FACE_ID | |
6386 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6387 | that the region doesn't have to be taken into account. */ | |
6388 | || bufpos <= 0 | |
6389 | || bufpos < region_beg | |
6390 | || bufpos >= region_end) | |
6391 | && (multibyte_p | |
6392 | /* We can't realize faces for different charsets differently | |
6393 | if we don't have fonts, so we can stop here if not working | |
6394 | on a window-system frame. */ | |
6395 | || !FRAME_WINDOW_P (f) | |
6396 | || FACE_SUITABLE_FOR_CHARSET_P (base_face, -1))) | |
6397 | return base_face->id; | |
6398 | ||
6399 | /* Begin with attributes from the base face. */ | |
6400 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6401 | ||
6402 | /* Merge in attributes specified via text properties. */ | |
6403 | if (!NILP (prop)) | |
6404 | merge_face_vector_with_property (f, attrs, prop); | |
6405 | ||
6406 | /* If in the region, merge in the region face. */ | |
6407 | if (bufpos | |
6408 | && bufpos >= region_beg | |
6409 | && bufpos < region_end) | |
a8517066 | 6410 | { |
82641697 GM |
6411 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6412 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
a8517066 | 6413 | } |
660ed669 | 6414 | |
82641697 GM |
6415 | /* Look up a realized face with the given face attributes, |
6416 | or realize a new one. */ | |
6417 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
660ed669 JB |
6418 | } |
6419 | ||
6420 | ||
c115973b | 6421 | \f |
82641697 GM |
6422 | /*********************************************************************** |
6423 | Tests | |
6424 | ***********************************************************************/ | |
c115973b | 6425 | |
82641697 | 6426 | #if GLYPH_DEBUG |
c115973b | 6427 | |
82641697 | 6428 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6429 | |
82641697 GM |
6430 | static void |
6431 | dump_realized_face (face) | |
6432 | struct face *face; | |
6433 | { | |
6434 | fprintf (stderr, "ID: %d\n", face->id); | |
6435 | #ifdef HAVE_X_WINDOWS | |
6436 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6437 | #endif | |
6438 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6439 | face->foreground, | |
6440 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6441 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6442 | face->background, | |
6443 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6444 | fprintf (stderr, "font_name: %s (%s)\n", | |
6445 | face->font_name, | |
6446 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6447 | #ifdef HAVE_X_WINDOWS | |
6448 | fprintf (stderr, "font = %p\n", face->font); | |
6449 | #endif | |
6450 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6451 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6452 | fprintf (stderr, "underline: %d (%s)\n", | |
6453 | face->underline_p, | |
6454 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6455 | fprintf (stderr, "hash: %d\n", face->hash); | |
6456 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6457 | } |
6458 | ||
6459 | ||
82641697 GM |
6460 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6461 | (n) | |
6462 | Lisp_Object n; | |
c115973b | 6463 | { |
82641697 | 6464 | if (NILP (n)) |
c115973b | 6465 | { |
82641697 GM |
6466 | int i; |
6467 | ||
6468 | fprintf (stderr, "font selection order: "); | |
6469 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6470 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6471 | fprintf (stderr, "\n"); | |
6472 | ||
6473 | fprintf (stderr, "alternative fonts: "); | |
6474 | debug_print (Vface_alternative_font_family_alist); | |
6475 | fprintf (stderr, "\n"); | |
6476 | ||
c0617987 | 6477 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6478 | Fdump_face (make_number (i)); |
c115973b JB |
6479 | } |
6480 | else | |
f5e278c7 | 6481 | { |
82641697 GM |
6482 | struct face *face; |
6483 | CHECK_NUMBER (n, 0); | |
c0617987 | 6484 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6485 | if (face == NULL) |
6486 | error ("Not a valid face"); | |
6487 | dump_realized_face (face); | |
f5e278c7 | 6488 | } |
82641697 | 6489 | |
c115973b JB |
6490 | return Qnil; |
6491 | } | |
b5c53576 | 6492 | |
b5c53576 | 6493 | |
82641697 GM |
6494 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6495 | 0, 0, 0, "") | |
6496 | () | |
b5c53576 | 6497 | { |
82641697 GM |
6498 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6499 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6500 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6501 | return Qnil; | |
b5c53576 RS |
6502 | } |
6503 | ||
82641697 GM |
6504 | #endif /* GLYPH_DEBUG != 0 */ |
6505 | ||
b5c53576 | 6506 | |
c115973b | 6507 | \f |
82641697 GM |
6508 | /*********************************************************************** |
6509 | Initialization | |
6510 | ***********************************************************************/ | |
cb637678 | 6511 | |
c115973b | 6512 | void |
f211082d | 6513 | syms_of_xfaces () |
c115973b | 6514 | { |
f211082d JB |
6515 | Qface = intern ("face"); |
6516 | staticpro (&Qface); | |
fef04523 GM |
6517 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
6518 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
6519 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6520 | staticpro (&Qframe_update_face_colors); | |
6521 | ||
82641697 GM |
6522 | /* Lisp face attribute keywords. */ |
6523 | QCfamily = intern (":family"); | |
6524 | staticpro (&QCfamily); | |
6525 | QCheight = intern (":height"); | |
6526 | staticpro (&QCheight); | |
6527 | QCweight = intern (":weight"); | |
6528 | staticpro (&QCweight); | |
6529 | QCslant = intern (":slant"); | |
6530 | staticpro (&QCslant); | |
6531 | QCunderline = intern (":underline"); | |
6532 | staticpro (&QCunderline); | |
6533 | QCinverse_video = intern (":inverse-video"); | |
6534 | staticpro (&QCinverse_video); | |
6535 | QCreverse_video = intern (":reverse-video"); | |
6536 | staticpro (&QCreverse_video); | |
6537 | QCforeground = intern (":foreground"); | |
6538 | staticpro (&QCforeground); | |
6539 | QCbackground = intern (":background"); | |
6540 | staticpro (&QCbackground); | |
6541 | QCstipple = intern (":stipple");; | |
6542 | staticpro (&QCstipple); | |
6543 | QCwidth = intern (":width"); | |
6544 | staticpro (&QCwidth); | |
6545 | QCfont = intern (":font"); | |
6546 | staticpro (&QCfont); | |
6547 | QCbold = intern (":bold"); | |
6548 | staticpro (&QCbold); | |
6549 | QCitalic = intern (":italic"); | |
6550 | staticpro (&QCitalic); | |
6551 | QCoverline = intern (":overline"); | |
6552 | staticpro (&QCoverline); | |
6553 | QCstrike_through = intern (":strike-through"); | |
6554 | staticpro (&QCstrike_through); | |
6555 | QCbox = intern (":box"); | |
6556 | staticpro (&QCbox); | |
6557 | ||
6558 | /* Symbols used for Lisp face attribute values. */ | |
6559 | QCcolor = intern (":color"); | |
6560 | staticpro (&QCcolor); | |
6561 | QCline_width = intern (":line-width"); | |
6562 | staticpro (&QCline_width); | |
6563 | QCstyle = intern (":style"); | |
6564 | staticpro (&QCstyle); | |
6565 | Qreleased_button = intern ("released-button"); | |
6566 | staticpro (&Qreleased_button); | |
6567 | Qpressed_button = intern ("pressed-button"); | |
6568 | staticpro (&Qpressed_button); | |
6569 | Qnormal = intern ("normal"); | |
6570 | staticpro (&Qnormal); | |
6571 | Qultra_light = intern ("ultra-light"); | |
6572 | staticpro (&Qultra_light); | |
6573 | Qextra_light = intern ("extra-light"); | |
6574 | staticpro (&Qextra_light); | |
6575 | Qlight = intern ("light"); | |
6576 | staticpro (&Qlight); | |
6577 | Qsemi_light = intern ("semi-light"); | |
6578 | staticpro (&Qsemi_light); | |
6579 | Qsemi_bold = intern ("semi-bold"); | |
6580 | staticpro (&Qsemi_bold); | |
6581 | Qbold = intern ("bold"); | |
6582 | staticpro (&Qbold); | |
6583 | Qextra_bold = intern ("extra-bold"); | |
6584 | staticpro (&Qextra_bold); | |
6585 | Qultra_bold = intern ("ultra-bold"); | |
6586 | staticpro (&Qultra_bold); | |
6587 | Qoblique = intern ("oblique"); | |
6588 | staticpro (&Qoblique); | |
6589 | Qitalic = intern ("italic"); | |
6590 | staticpro (&Qitalic); | |
6591 | Qreverse_oblique = intern ("reverse-oblique"); | |
6592 | staticpro (&Qreverse_oblique); | |
6593 | Qreverse_italic = intern ("reverse-italic"); | |
6594 | staticpro (&Qreverse_italic); | |
6595 | Qultra_condensed = intern ("ultra-condensed"); | |
6596 | staticpro (&Qultra_condensed); | |
6597 | Qextra_condensed = intern ("extra-condensed"); | |
6598 | staticpro (&Qextra_condensed); | |
6599 | Qcondensed = intern ("condensed"); | |
6600 | staticpro (&Qcondensed); | |
6601 | Qsemi_condensed = intern ("semi-condensed"); | |
6602 | staticpro (&Qsemi_condensed); | |
6603 | Qsemi_expanded = intern ("semi-expanded"); | |
6604 | staticpro (&Qsemi_expanded); | |
6605 | Qexpanded = intern ("expanded"); | |
6606 | staticpro (&Qexpanded); | |
6607 | Qextra_expanded = intern ("extra-expanded"); | |
6608 | staticpro (&Qextra_expanded); | |
6609 | Qultra_expanded = intern ("ultra-expanded"); | |
6610 | staticpro (&Qultra_expanded); | |
6611 | Qbackground_color = intern ("background-color"); | |
6612 | staticpro (&Qbackground_color); | |
6613 | Qforeground_color = intern ("foreground-color"); | |
6614 | staticpro (&Qforeground_color); | |
6615 | Qunspecified = intern ("unspecified"); | |
6616 | staticpro (&Qunspecified); | |
6617 | ||
6618 | Qx_charset_registry = intern ("x-charset-registry"); | |
6619 | staticpro (&Qx_charset_registry); | |
92610620 GM |
6620 | Qface_alias = intern ("face-alias"); |
6621 | staticpro (&Qface_alias); | |
82641697 GM |
6622 | Qdefault = intern ("default"); |
6623 | staticpro (&Qdefault); | |
9ea173e8 GM |
6624 | Qtool_bar = intern ("tool-bar"); |
6625 | staticpro (&Qtool_bar); | |
82641697 GM |
6626 | Qregion = intern ("region"); |
6627 | staticpro (&Qregion); | |
8bd201d6 GM |
6628 | Qfringe = intern ("fringe"); |
6629 | staticpro (&Qfringe); | |
045dee35 GM |
6630 | Qheader_line = intern ("header-line"); |
6631 | staticpro (&Qheader_line); | |
8bd201d6 GM |
6632 | Qscroll_bar = intern ("scroll-bar"); |
6633 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
6634 | Qmenu = intern ("menu"); |
6635 | staticpro (&Qmenu); | |
8bd201d6 GM |
6636 | Qcursor = intern ("cursor"); |
6637 | staticpro (&Qcursor); | |
6638 | Qborder = intern ("border"); | |
6639 | staticpro (&Qborder); | |
6640 | Qmouse = intern ("mouse"); | |
6641 | staticpro (&Qmouse); | |
2d764c78 EZ |
6642 | Qtty_color_desc = intern ("tty-color-desc"); |
6643 | staticpro (&Qtty_color_desc); | |
6644 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
6645 | staticpro (&Qtty_color_by_index); | |
82641697 GM |
6646 | |
6647 | defsubr (&Sinternal_make_lisp_face); | |
6648 | defsubr (&Sinternal_lisp_face_p); | |
6649 | defsubr (&Sinternal_set_lisp_face_attribute); | |
6650 | #ifdef HAVE_X_WINDOWS | |
6651 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); | |
6652 | defsubr (&Sface_color_gray_p); | |
6653 | defsubr (&Sface_color_supported_p); | |
6654 | #endif | |
6655 | defsubr (&Sinternal_get_lisp_face_attribute); | |
6656 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6657 | defsubr (&Sinternal_lisp_face_equal_p); | |
6658 | defsubr (&Sinternal_lisp_face_empty_p); | |
6659 | defsubr (&Sinternal_copy_lisp_face); | |
6660 | defsubr (&Sinternal_merge_in_global_face); | |
6661 | defsubr (&Sface_font); | |
6662 | defsubr (&Sframe_face_alist); | |
6663 | defsubr (&Sinternal_set_font_selection_order); | |
6664 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
6665 | #if GLYPH_DEBUG | |
6666 | defsubr (&Sdump_face); | |
6667 | defsubr (&Sshow_face_resources); | |
6668 | #endif /* GLYPH_DEBUG */ | |
6669 | defsubr (&Sclear_face_cache); | |
6670 | ||
057df17c GM |
6671 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
6672 | "*Limit for font matching.\n\ | |
6673 | If an integer > 0, font matching functions won't load more than\n\ | |
6674 | that number of fonts when searching for a matching font."); | |
6675 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
6676 | ||
82641697 GM |
6677 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
6678 | "List of global face definitions (for internal use only.)"); | |
6679 | Vface_new_frame_defaults = Qnil; | |
6680 | ||
6681 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, | |
6682 | "*Default stipple pattern used on monochrome displays.\n\ | |
6683 | This stipple pattern is used on monochrome displays\n\ | |
6684 | instead of shades of gray for a face background color.\n\ | |
6685 | See `set-face-stipple' for possible values for this variable."); | |
6686 | Vface_default_stipple = build_string ("gray3"); | |
6687 | ||
6688 | DEFVAR_LISP ("face-default-registry", &Vface_default_registry, | |
6689 | "Default registry and encoding to use.\n\ | |
6690 | This registry and encoding is used for unibyte text. It is set up\n\ | |
6691 | from the specified frame font when Emacs starts. (For internal use only.)"); | |
6692 | Vface_default_registry = Qnil; | |
6693 | ||
6694 | DEFVAR_LISP ("face-alternative-font-family-alist", | |
6695 | &Vface_alternative_font_family_alist, ""); | |
6696 | Vface_alternative_font_family_alist = Qnil; | |
6697 | ||
6698 | #if SCALABLE_FONTS | |
6699 | ||
6700 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, | |
6701 | "Allowed scalable fonts.\n\ | |
6702 | A value of nil means don't allow any scalable fonts.\n\ | |
6703 | A value of t means allow any scalable font.\n\ | |
6704 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
6705 | scaled if its name matches a regular expression in the list."); | |
6706 | Vscalable_fonts_allowed = Qnil; | |
6707 | ||
6708 | #endif /* SCALABLE_FONTS */ | |
b5c53576 | 6709 | |
87485d6f | 6710 | #ifdef HAVE_X_WINDOWS |
fef04523 | 6711 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
6712 | defsubr (&Sx_list_fonts); |
6713 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 6714 | defsubr (&Sx_family_fonts); |
82641697 GM |
6715 | defsubr (&Sx_font_family_list); |
6716 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 6717 | } |