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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 | ||
78d2079c KH |
99 | Faces are always realized for a specific character set and contain |
100 | a specific font, even if the face being realized specifies a | |
101 | fontset (see `font selection' below). The reason is that the | |
102 | result of the new font selection stage is better than what can be | |
103 | done with statically defined font name patterns in fontsets. | |
82641697 GM |
104 | |
105 | ||
106 | Unibyte text. | |
107 | ||
108 | In unibyte text, Emacs' charsets aren't applicable; function | |
109 | `char-charset' reports CHARSET_ASCII for all characters, including | |
110 | those > 0x7f. The X registry and encoding of fonts to use is | |
111 | determined from the variable `x-unibyte-registry-and-encoding' in | |
112 | this case. The variable is initialized at Emacs startup time from | |
113 | the font the user specified for Emacs. | |
114 | ||
115 | Currently all unibyte text, i.e. all buffers with | |
116 | enable_multibyte_characters nil are displayed with fonts of the | |
117 | same registry and encoding `x-unibyte-registry-and-encoding'. This | |
118 | is consistent with the fact that languages can also be set | |
119 | globally, only. | |
120 | ||
121 | ||
122 | Font selection. | |
123 | ||
124 | Font selection tries to find the best available matching font for a | |
125 | given (charset, face) combination. This is done slightly | |
126 | differently for faces specifying a fontset, or a font family name. | |
127 | ||
128 | If the face specifies a fontset alias name, that fontset determines | |
129 | a pattern for fonts of the given charset. If the face specifies a | |
130 | font family, a font pattern is constructed. Charset symbols have a | |
131 | property `x-charset-registry' for that purpose that maps a charset | |
132 | to an XLFD registry and encoding in the font pattern constructed. | |
133 | ||
134 | Available fonts on the system on which Emacs runs are then matched | |
135 | against the font pattern. The result of font selection is the best | |
136 | match for the given face attributes in this font list. | |
137 | ||
138 | Font selection can be influenced by the user. | |
139 | ||
140 | 1. The user can specify the relative importance he gives the face | |
141 | attributes width, height, weight, and slant by setting | |
142 | face-font-selection-order (faces.el) to a list of face attribute | |
143 | names. The default is '(:width :height :weight :slant), and means | |
144 | that font selection first tries to find a good match for the font | |
145 | width specified by a face, then---within fonts with that | |
146 | width---tries to find a best match for the specified font height, | |
147 | etc. | |
148 | ||
149 | 2. Setting face-alternative-font-family-alist allows the user to | |
150 | specify alternative font families to try if a family specified by a | |
151 | face doesn't exist. | |
152 | ||
153 | ||
154 | Composite characters. | |
155 | ||
156 | Realized faces for composite characters are the only ones having a | |
157 | fontset id >= 0. When a composite character is encoded into a | |
158 | sequence of non-composite characters (in xterm.c), a suitable font | |
159 | for the non-composite characters is then selected and realized, | |
160 | i.e. the realization process is delayed but in principle the same. | |
161 | ||
162 | ||
163 | Initialization of basic faces. | |
164 | ||
165 | The faces `default', `modeline' are considered `basic faces'. | |
166 | When redisplay happens the first time for a newly created frame, | |
167 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
168 | used to fill in unspecified attributes of the default face. */ | |
169 | ||
170 | /* Define SCALABLE_FONTS to a non-zero value to enable scalable | |
171 | font use. Define it to zero to disable scalable font use. | |
172 | ||
173 | Use of too many or too large scalable fonts can crash XFree86 | |
174 | servers. That's why I've put the code dealing with scalable fonts | |
175 | in #if's. */ | |
176 | ||
177 | #define SCALABLE_FONTS 1 | |
7b7739b1 | 178 | |
68c45bf0 | 179 | #include <config.h> |
c115973b JB |
180 | #include <sys/types.h> |
181 | #include <sys/stat.h> | |
c115973b | 182 | #include "lisp.h" |
a8517066 | 183 | #include "charset.h" |
b5c53576 RS |
184 | #include "frame.h" |
185 | ||
87485d6f | 186 | #ifdef HAVE_X_WINDOWS |
c115973b | 187 | #include "xterm.h" |
a8517066 | 188 | #include "fontset.h" |
c7ae3284 GM |
189 | #ifdef USE_MOTIF |
190 | #include <Xm/Xm.h> | |
191 | #include <Xm/XmStrDefs.h> | |
192 | #endif /* USE_MOTIF */ | |
87485d6f | 193 | #endif |
82641697 | 194 | |
87485d6f MW |
195 | #ifdef MSDOS |
196 | #include "dosfns.h" | |
197 | #endif | |
82641697 | 198 | |
c115973b | 199 | #include "buffer.h" |
f211082d | 200 | #include "dispextern.h" |
357f32fc | 201 | #include "blockinput.h" |
b6d40e46 | 202 | #include "window.h" |
bde7c500 | 203 | #include "intervals.h" |
c115973b | 204 | |
87485d6f | 205 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
206 | |
207 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
208 | time.h. On some such systems, Xos.h tries to redefine struct |
209 | timeval and struct timezone if USG is #defined while it is | |
210 | #included. */ | |
657070ac | 211 | |
82641697 | 212 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 213 | #include <time.h> |
657070ac JB |
214 | #undef USG |
215 | #include <X11/Xos.h> | |
216 | #define USG | |
e11d186d | 217 | #define __TIMEVAL__ |
82641697 GM |
218 | #else /* not XOS_NEEDS_TIME_H */ |
219 | #include <X11/Xos.h> | |
220 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 221 | |
82641697 | 222 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 223 | |
82641697 | 224 | #include <stdio.h> |
82641697 GM |
225 | #include <ctype.h> |
226 | #include "keyboard.h" | |
c115973b | 227 | |
82641697 GM |
228 | #ifndef max |
229 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
230 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
231 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 232 | #endif |
cb637678 | 233 | |
82641697 GM |
234 | /* Non-zero if face attribute ATTR is unspecified. */ |
235 | ||
236 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
237 | ||
238 | /* Value is the number of elements of VECTOR. */ | |
239 | ||
240 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
241 | ||
242 | /* Make a copy of string S on the stack using alloca. Value is a pointer | |
243 | to the copy. */ | |
244 | ||
245 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 246 | |
82641697 GM |
247 | /* Make a copy of the contents of Lisp string S on the stack using |
248 | alloca. Value is a pointer to the copy. */ | |
249 | ||
250 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
251 | ||
252 | /* Size of hash table of realized faces in face caches (should be a | |
253 | prime number). */ | |
254 | ||
255 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
256 | ||
2d764c78 EZ |
257 | /* A definition of XColor for non-X frames. */ |
258 | #ifndef HAVE_X_WINDOWS | |
259 | typedef struct { | |
260 | unsigned long pixel; | |
261 | unsigned short red, green, blue; | |
262 | char flags; | |
263 | char pad; | |
264 | } XColor; | |
265 | #endif | |
266 | ||
82641697 GM |
267 | /* Keyword symbols used for face attribute names. */ |
268 | ||
269 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
270 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
271 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
272 | Lisp_Object QCreverse_video; | |
273 | Lisp_Object QCoverline, QCstrike_through, QCbox; | |
274 | ||
275 | /* Symbols used for attribute values. */ | |
276 | ||
277 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
278 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
279 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
280 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
281 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
282 | Lisp_Object Qultra_expanded; | |
283 | Lisp_Object Qreleased_button, Qpressed_button; | |
284 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
285 | Lisp_Object Qunspecified; |
286 | ||
287 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 GM |
288 | |
289 | /* The symbol `x-charset-registry'. This property of charsets defines | |
290 | the X registry and encoding that fonts should have that are used to | |
291 | display characters of that charset. */ | |
292 | ||
293 | Lisp_Object Qx_charset_registry; | |
294 | ||
92610620 GM |
295 | /* The name of the function to call when the background of the frame |
296 | has changed, frame_update_face_colors. */ | |
297 | ||
298 | Lisp_Object Qframe_update_face_colors; | |
299 | ||
82641697 GM |
300 | /* Names of basic faces. */ |
301 | ||
fb4927c4 | 302 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 303 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 304 | extern Lisp_Object Qmode_line; |
8bd201d6 | 305 | |
92610620 GM |
306 | /* The symbol `face-alias'. A symbols having that property is an |
307 | alias for another face. Value of the property is the name of | |
308 | the aliased face. */ | |
309 | ||
310 | Lisp_Object Qface_alias; | |
311 | ||
8bd201d6 GM |
312 | /* Names of frame parameters related to faces. */ |
313 | ||
314 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
315 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
316 | |
317 | /* Default stipple pattern used on monochrome displays. This stipple | |
318 | pattern is used on monochrome displays instead of shades of gray | |
319 | for a face background color. See `set-face-stipple' for possible | |
320 | values for this variable. */ | |
321 | ||
322 | Lisp_Object Vface_default_stipple; | |
323 | ||
324 | /* Default registry and encoding to use for charsets whose charset | |
325 | symbols don't specify one. */ | |
326 | ||
327 | Lisp_Object Vface_default_registry; | |
328 | ||
329 | /* Alist of alternative font families. Each element is of the form | |
330 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
331 | try FAMILY1, then FAMILY2, ... */ | |
332 | ||
333 | Lisp_Object Vface_alternative_font_family_alist; | |
334 | ||
335 | /* Allowed scalable fonts. A value of nil means don't allow any | |
336 | scalable fonts. A value of t means allow the use of any scalable | |
337 | font. Otherwise, value must be a list of regular expressions. A | |
338 | font may be scaled if its name matches a regular expression in the | |
339 | list. */ | |
340 | ||
341 | #if SCALABLE_FONTS | |
342 | Lisp_Object Vscalable_fonts_allowed; | |
343 | #endif | |
344 | ||
057df17c GM |
345 | /* Maximum number of fonts to consider in font_list. If not an |
346 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
347 | ||
348 | Lisp_Object Vfont_list_limit; | |
349 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
350 | ||
82641697 GM |
351 | /* The symbols `foreground-color' and `background-color' which can be |
352 | used as part of a `face' property. This is for compatibility with | |
353 | Emacs 20.2. */ | |
354 | ||
355 | Lisp_Object Qforeground_color, Qbackground_color; | |
356 | ||
357 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 358 | |
ff83dbb1 | 359 | Lisp_Object Qface; |
82641697 GM |
360 | extern Lisp_Object Qmouse_face; |
361 | ||
362 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
363 | ||
fef04523 | 364 | Lisp_Object Qbitmap_spec_p; |
f211082d | 365 | |
82641697 GM |
366 | /* Alist of global face definitions. Each element is of the form |
367 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
368 | is a Lisp vector of face attributes. These faces are used | |
369 | to initialize faces for new frames. */ | |
cb637678 | 370 | |
82641697 | 371 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 372 | |
82641697 | 373 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 374 | |
82641697 | 375 | static int next_lface_id; |
c115973b | 376 | |
82641697 | 377 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 378 | |
82641697 GM |
379 | static Lisp_Object *lface_id_to_name; |
380 | static int lface_id_to_name_size; | |
c115973b | 381 | |
2d764c78 EZ |
382 | /* tty color-related functions (defined on lisp/term/tty-colors.el). */ |
383 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; | |
82641697 GM |
384 | |
385 | /* Counter for calls to clear_face_cache. If this counter reaches | |
386 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
387 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
388 | ||
389 | static int clear_font_table_count; | |
390 | #define CLEAR_FONT_TABLE_COUNT 100 | |
391 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
392 | ||
393 | /* Non-zero means face attributes have been changed since the last | |
394 | redisplay. Used in redisplay_internal. */ | |
395 | ||
396 | int face_change_count; | |
397 | ||
398 | /* The total number of colors currently allocated. */ | |
399 | ||
400 | #if GLYPH_DEBUG | |
401 | static int ncolors_allocated; | |
402 | static int npixmaps_allocated; | |
403 | static int ngcs; | |
404 | #endif | |
405 | ||
406 | ||
407 | \f | |
408 | /* Function prototypes. */ | |
409 | ||
410 | struct font_name; | |
411 | struct table_entry; | |
412 | ||
c7ae3284 | 413 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
82641697 GM |
414 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); |
415 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
416 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
417 | int)); | |
418 | static int first_font_matching P_ ((struct frame *f, char *, | |
419 | struct font_name *)); | |
420 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
421 | struct font_name *, int, int, int)); | |
422 | static int font_scalable_p P_ ((struct font_name *)); | |
423 | static Lisp_Object deduce_unibyte_registry P_ ((struct frame *, char *)); | |
424 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); | |
425 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
426 | static char *xstrdup P_ ((char *)); | |
427 | static unsigned char *xstrlwr P_ ((unsigned char *)); | |
428 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 GM |
429 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
430 | static void load_face_font_or_fontset P_ ((struct frame *, struct face *, char *, int)); | |
82641697 GM |
431 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
432 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
433 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
434 | static char *build_font_name P_ ((struct font_name *)); | |
435 | static void free_font_names P_ ((struct font_name *, int)); | |
436 | static int sorted_font_list P_ ((struct frame *, char *, | |
437 | int (*cmpfn) P_ ((const void *, const void *)), | |
438 | struct font_name **)); | |
439 | static int font_list P_ ((struct frame *, char *, char *, char *, struct font_name **)); | |
440 | static int try_font_list P_ ((struct frame *, Lisp_Object *, char *, char *, char *, | |
441 | struct font_name **)); | |
442 | static int cmp_font_names P_ ((const void *, const void *)); | |
443 | static struct face *realize_face P_ ((struct face_cache *, | |
444 | Lisp_Object *, int)); | |
445 | static struct face *realize_x_face P_ ((struct face_cache *, | |
446 | Lisp_Object *, int)); | |
447 | static struct face *realize_tty_face P_ ((struct face_cache *, | |
448 | Lisp_Object *, int)); | |
449 | static int realize_basic_faces P_ ((struct frame *)); | |
450 | static int realize_default_face P_ ((struct frame *)); | |
451 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
452 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
453 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
454 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
455 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
456 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
457 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
458 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
459 | static void clear_face_gcs P_ ((struct face_cache *)); | |
460 | static void free_face_cache P_ ((struct face_cache *)); | |
461 | static int face_numeric_weight P_ ((Lisp_Object)); | |
462 | static int face_numeric_slant P_ ((Lisp_Object)); | |
463 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
464 | static int face_fontset P_ ((struct frame *, Lisp_Object *)); | |
465 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, | |
466 | Lisp_Object)); | |
467 | static char *choose_face_fontset_font P_ ((struct frame *, Lisp_Object *, | |
468 | int, int)); | |
469 | static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); | |
470 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, | |
471 | Lisp_Object)); | |
472 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, char *, | |
3221576b | 473 | int, int)); |
82641697 GM |
474 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
475 | static struct face *make_realized_face P_ ((Lisp_Object *, int, Lisp_Object)); | |
476 | static void free_realized_faces P_ ((struct face_cache *)); | |
477 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
478 | struct font_name *, int)); | |
479 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
480 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
481 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
482 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
483 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
484 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
485 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
486 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
487 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
488 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
489 | int, int)); | |
490 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
491 | struct font_name *, int, int)); | |
492 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, | |
493 | struct font_name *, int)); | |
494 | ||
495 | #ifdef HAVE_X_WINDOWS | |
496 | ||
497 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
498 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
499 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
500 | int (*cmpfn) P_ ((const void *, const void *)))); | |
501 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
502 | static void x_free_gc P_ ((struct frame *, GC)); | |
503 | static void clear_font_table P_ ((struct frame *)); | |
504 | ||
505 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 506 | |
cb637678 | 507 | \f |
82641697 GM |
508 | /*********************************************************************** |
509 | Utilities | |
510 | ***********************************************************************/ | |
c115973b | 511 | |
87485d6f | 512 | #ifdef HAVE_X_WINDOWS |
cb637678 | 513 | |
82641697 GM |
514 | /* Create and return a GC for use on frame F. GC values and mask |
515 | are given by XGCV and MASK. */ | |
516 | ||
517 | static INLINE GC | |
518 | x_create_gc (f, mask, xgcv) | |
cb637678 | 519 | struct frame *f; |
82641697 GM |
520 | unsigned long mask; |
521 | XGCValues *xgcv; | |
c115973b JB |
522 | { |
523 | GC gc; | |
82641697 GM |
524 | BLOCK_INPUT; |
525 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
526 | UNBLOCK_INPUT; | |
527 | IF_DEBUG (++ngcs); | |
528 | return gc; | |
529 | } | |
c115973b | 530 | |
42120bc7 | 531 | |
82641697 GM |
532 | /* Free GC which was used on frame F. */ |
533 | ||
534 | static INLINE void | |
535 | x_free_gc (f, gc) | |
536 | struct frame *f; | |
537 | GC gc; | |
538 | { | |
660ed669 | 539 | BLOCK_INPUT; |
82641697 GM |
540 | xassert (--ngcs >= 0); |
541 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
542 | UNBLOCK_INPUT; | |
543 | } | |
660ed669 | 544 | |
82641697 | 545 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 546 | |
660ed669 | 547 | |
82641697 GM |
548 | /* Like strdup, but uses xmalloc. */ |
549 | ||
550 | static char * | |
551 | xstrdup (s) | |
552 | char *s; | |
553 | { | |
554 | int len = strlen (s) + 1; | |
555 | char *p = (char *) xmalloc (len); | |
556 | bcopy (s, p, len); | |
557 | return p; | |
558 | } | |
660ed669 | 559 | |
660ed669 | 560 | |
82641697 GM |
561 | /* Like stricmp. Used to compare parts of font names which are in |
562 | ISO8859-1. */ | |
563 | ||
564 | int | |
565 | xstricmp (s1, s2) | |
566 | unsigned char *s1, *s2; | |
567 | { | |
568 | while (*s1 && *s2) | |
95887807 | 569 | { |
82641697 GM |
570 | unsigned char c1 = tolower (*s1); |
571 | unsigned char c2 = tolower (*s2); | |
572 | if (c1 != c2) | |
573 | return c1 < c2 ? -1 : 1; | |
574 | ++s1, ++s2; | |
95887807 | 575 | } |
cd0bb842 | 576 | |
82641697 GM |
577 | if (*s1 == 0) |
578 | return *s2 == 0 ? 0 : -1; | |
579 | return 1; | |
580 | } | |
660ed669 | 581 | |
660ed669 | 582 | |
82641697 | 583 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 584 | |
82641697 GM |
585 | static unsigned char * |
586 | xstrlwr (s) | |
587 | unsigned char *s; | |
588 | { | |
589 | unsigned char *p = s; | |
590 | ||
591 | for (p = s; *p; ++p) | |
592 | *p = tolower (*p); | |
593 | ||
594 | return s; | |
c115973b | 595 | } |
cb637678 | 596 | |
42120bc7 | 597 | |
82641697 GM |
598 | /* Signal `error' with message S, and additional argument ARG. */ |
599 | ||
600 | static void | |
601 | signal_error (s, arg) | |
602 | char *s; | |
603 | Lisp_Object arg; | |
42120bc7 | 604 | { |
82641697 GM |
605 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
606 | } | |
42120bc7 | 607 | |
82641697 | 608 | |
c0617987 GM |
609 | /* If FRAME is nil, return a pointer to the selected frame. |
610 | Otherwise, check that FRAME is a live frame, and return a pointer | |
611 | to it. NPARAM is the parameter number of FRAME, for | |
612 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
613 | Lisp function definitions. */ | |
82641697 GM |
614 | |
615 | static INLINE struct frame * | |
616 | frame_or_selected_frame (frame, nparam) | |
617 | Lisp_Object frame; | |
618 | int nparam; | |
619 | { | |
82641697 | 620 | if (NILP (frame)) |
c0617987 GM |
621 | frame = selected_frame; |
622 | ||
623 | CHECK_LIVE_FRAME (frame, nparam); | |
624 | return XFRAME (frame); | |
42120bc7 | 625 | } |
82641697 | 626 | |
42120bc7 | 627 | \f |
82641697 GM |
628 | /*********************************************************************** |
629 | Frames and faces | |
630 | ***********************************************************************/ | |
cd0bb842 | 631 | |
82641697 | 632 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 633 | |
82641697 GM |
634 | void |
635 | init_frame_faces (f) | |
cb637678 | 636 | struct frame *f; |
cb637678 | 637 | { |
82641697 GM |
638 | /* Make a face cache, if F doesn't have one. */ |
639 | if (FRAME_FACE_CACHE (f) == NULL) | |
640 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
641 | ||
642 | #ifdef HAVE_X_WINDOWS | |
643 | /* Make the image cache. */ | |
644 | if (FRAME_X_P (f)) | |
645 | { | |
646 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
647 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
648 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
649 | } | |
650 | #endif /* HAVE_X_WINDOWS */ | |
cb637678 | 651 | |
82641697 GM |
652 | /* Realize basic faces. Must have enough information in frame |
653 | parameters to realize basic faces at this point. */ | |
654 | #ifdef HAVE_X_WINDOWS | |
655 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
656 | #endif | |
657 | if (!realize_basic_faces (f)) | |
658 | abort (); | |
659 | } | |
cb637678 | 660 | |
cb637678 | 661 | |
82641697 | 662 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 663 | |
82641697 GM |
664 | void |
665 | free_frame_faces (f) | |
cb637678 | 666 | struct frame *f; |
cb637678 | 667 | { |
82641697 GM |
668 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
669 | ||
670 | if (face_cache) | |
671 | { | |
672 | free_face_cache (face_cache); | |
673 | FRAME_FACE_CACHE (f) = NULL; | |
674 | } | |
660ed669 | 675 | |
82641697 GM |
676 | #ifdef HAVE_X_WINDOWS |
677 | if (FRAME_X_P (f)) | |
195f798e | 678 | { |
82641697 GM |
679 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
680 | if (image_cache) | |
195f798e | 681 | { |
82641697 GM |
682 | --image_cache->refcount; |
683 | if (image_cache->refcount == 0) | |
684 | free_image_cache (f); | |
195f798e RS |
685 | } |
686 | } | |
82641697 | 687 | #endif /* HAVE_X_WINDOWS */ |
cb637678 JB |
688 | } |
689 | ||
82641697 | 690 | |
8bd201d6 GM |
691 | /* Clear face caches, and recompute basic faces for frame F. Call |
692 | this after changing frame parameters on which those faces depend, | |
693 | or when realized faces have been freed due to changing attributes | |
694 | of named faces. */ | |
82641697 GM |
695 | |
696 | void | |
697 | recompute_basic_faces (f) | |
cb637678 | 698 | struct frame *f; |
cb637678 | 699 | { |
82641697 GM |
700 | if (FRAME_FACE_CACHE (f)) |
701 | { | |
8bd201d6 | 702 | clear_face_cache (0); |
18df9369 GM |
703 | if (!realize_basic_faces (f)) |
704 | abort (); | |
82641697 GM |
705 | } |
706 | } | |
cb637678 | 707 | |
cb637678 | 708 | |
82641697 GM |
709 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
710 | try to free unused fonts, too. */ | |
cb637678 | 711 | |
adfea139 | 712 | void |
82641697 GM |
713 | clear_face_cache (clear_fonts_p) |
714 | int clear_fonts_p; | |
cb637678 | 715 | { |
82641697 GM |
716 | #ifdef HAVE_X_WINDOWS |
717 | Lisp_Object tail, frame; | |
718 | struct frame *f; | |
828e66d1 | 719 | |
82641697 GM |
720 | if (clear_fonts_p |
721 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 722 | { |
82641697 GM |
723 | /* From time to time see if we can unload some fonts. This also |
724 | frees all realized faces on all frames. Fonts needed by | |
725 | faces will be loaded again when faces are realized again. */ | |
726 | clear_font_table_count = 0; | |
195f798e | 727 | |
82641697 | 728 | FOR_EACH_FRAME (tail, frame) |
195f798e | 729 | { |
82641697 GM |
730 | f = XFRAME (frame); |
731 | if (FRAME_X_P (f) | |
732 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
195f798e | 733 | { |
82641697 GM |
734 | free_all_realized_faces (frame); |
735 | clear_font_table (f); | |
736 | } | |
737 | } | |
738 | } | |
739 | else | |
740 | { | |
741 | /* Clear GCs of realized faces. */ | |
742 | FOR_EACH_FRAME (tail, frame) | |
743 | { | |
744 | f = XFRAME (frame); | |
745 | if (FRAME_X_P (f)) | |
746 | { | |
747 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
748 | clear_image_cache (f, 0); | |
195f798e RS |
749 | } |
750 | } | |
828e66d1 | 751 | } |
82641697 | 752 | #endif /* HAVE_X_WINDOWS */ |
cd0bb842 RS |
753 | } |
754 | ||
82641697 GM |
755 | |
756 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
757 | "Clear face caches on all frames.\n\ | |
758 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
759 | (thorougly) | |
760 | Lisp_Object thorougly; | |
cd0bb842 | 761 | { |
82641697 GM |
762 | clear_face_cache (!NILP (thorougly)); |
763 | return Qnil; | |
764 | } | |
765 | ||
766 | ||
767 | ||
768 | #ifdef HAVE_X_WINDOWS | |
769 | ||
770 | ||
771 | /* Remove those fonts from the font table of frame F that are not used | |
772 | by fontsets. Called from clear_face_cache from time to time. */ | |
773 | ||
774 | static void | |
775 | clear_font_table (f) | |
776 | struct frame *f; | |
777 | { | |
778 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
779 | char *used; | |
780 | Lisp_Object rest, frame; | |
781 | int i; | |
782 | ||
e22ef6eb | 783 | xassert (FRAME_X_P (f)); |
82641697 GM |
784 | |
785 | used = (char *) alloca (dpyinfo->n_fonts * sizeof *used); | |
786 | bzero (used, dpyinfo->n_fonts * sizeof *used); | |
787 | ||
788 | /* For all frames with the same x_display_info as F, record | |
789 | in `used' those fonts that are in use by fontsets. */ | |
790 | FOR_EACH_FRAME (rest, frame) | |
791 | if (FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) | |
792 | { | |
793 | struct frame *f = XFRAME (frame); | |
794 | struct fontset_data *fontset_data = FRAME_FONTSET_DATA (f); | |
795 | ||
796 | for (i = 0; i < fontset_data->n_fontsets; ++i) | |
797 | { | |
798 | struct fontset_info *info = fontset_data->fontset_table[i]; | |
799 | int j; | |
800 | ||
801 | for (j = 0; j <= MAX_CHARSET; ++j) | |
802 | { | |
803 | int idx = info->font_indexes[j]; | |
804 | if (idx >= 0) | |
805 | used[idx] = 1; | |
806 | } | |
807 | } | |
808 | } | |
809 | ||
810 | /* Free those fonts that are not used by fontsets. */ | |
811 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
812 | if (used[i] == 0 && dpyinfo->font_table[i].name) | |
813 | { | |
814 | struct font_info *font_info = dpyinfo->font_table + i; | |
815 | ||
816 | /* Free names. In xfns.c there is a comment that full_name | |
817 | should never be freed because it is always shared with | |
818 | something else. I don't think this is true anymore---see | |
819 | x_load_font. It's either equal to font_info->name or | |
820 | allocated via xmalloc, and there seems to be no place in | |
821 | the source files where full_name is transferred to another | |
822 | data structure. */ | |
823 | if (font_info->full_name != font_info->name) | |
824 | xfree (font_info->full_name); | |
825 | xfree (font_info->name); | |
826 | ||
827 | /* Free the font. */ | |
828 | BLOCK_INPUT; | |
829 | XFreeFont (dpyinfo->display, font_info->font); | |
830 | UNBLOCK_INPUT; | |
831 | ||
832 | /* Mark font table slot free. */ | |
833 | font_info->font = NULL; | |
834 | font_info->name = font_info->full_name = NULL; | |
835 | } | |
836 | } | |
837 | ||
838 | ||
839 | #endif /* HAVE_X_WINDOWS */ | |
840 | ||
841 | ||
842 | \f | |
843 | /*********************************************************************** | |
844 | X Pixmaps | |
845 | ***********************************************************************/ | |
846 | ||
847 | #ifdef HAVE_X_WINDOWS | |
848 | ||
fef04523 GM |
849 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
850 | "Value is non-nil if OBJECT is a valid bitmap specification.\n\ | |
851 | A bitmap specification is either a string, a file name, or a list\n\ | |
852 | (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ | |
c7ae3284 GM |
853 | HEIGHT is its height, and DATA is a string containing the bits of\n\ |
854 | the pixmap. Bits are stored row by row, each row occupies\n\ | |
855 | (WIDTH + 7)/8 bytes.") | |
82641697 GM |
856 | (object) |
857 | Lisp_Object object; | |
858 | { | |
c7ae3284 GM |
859 | int pixmap_p = 0; |
860 | ||
861 | if (STRINGP (object)) | |
862 | /* If OBJECT is a string, it's a file name. */ | |
863 | pixmap_p = 1; | |
864 | else if (CONSP (object)) | |
865 | { | |
866 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
867 | HEIGHT must be integers > 0, and DATA must be string large | |
868 | enough to hold a bitmap of the specified size. */ | |
869 | Lisp_Object width, height, data; | |
870 | ||
871 | height = width = data = Qnil; | |
872 | ||
873 | if (CONSP (object)) | |
874 | { | |
875 | width = XCAR (object); | |
876 | object = XCDR (object); | |
877 | if (CONSP (object)) | |
878 | { | |
879 | height = XCAR (object); | |
880 | object = XCDR (object); | |
881 | if (CONSP (object)) | |
882 | data = XCAR (object); | |
883 | } | |
884 | } | |
cd0bb842 | 885 | |
c7ae3284 GM |
886 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
887 | { | |
888 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
889 | / BITS_PER_CHAR); | |
890 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * height) | |
891 | pixmap_p = 1; | |
892 | } | |
893 | } | |
894 | ||
895 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
896 | } |
897 | ||
cd0bb842 | 898 | |
82641697 GM |
899 | /* Load a bitmap according to NAME (which is either a file name or a |
900 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
901 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
902 | bitmap cannot be loaded, display a message saying so, and return | |
903 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
904 | if these pointers are not null. */ | |
cd0bb842 | 905 | |
82641697 | 906 | static int |
cd0bb842 | 907 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 908 | FRAME_PTR f; |
cd0bb842 RS |
909 | Lisp_Object name; |
910 | unsigned int *w_ptr, *h_ptr; | |
911 | { | |
912 | int bitmap_id; | |
913 | Lisp_Object tem; | |
914 | ||
915 | if (NILP (name)) | |
82641697 | 916 | return 0; |
cd0bb842 | 917 | |
fef04523 | 918 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 919 | if (NILP (tem)) |
fef04523 | 920 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
921 | |
922 | BLOCK_INPUT; | |
cd0bb842 RS |
923 | if (CONSP (name)) |
924 | { | |
925 | /* Decode a bitmap spec into a bitmap. */ | |
926 | ||
927 | int h, w; | |
928 | Lisp_Object bits; | |
929 | ||
930 | w = XINT (Fcar (name)); | |
931 | h = XINT (Fcar (Fcdr (name))); | |
932 | bits = Fcar (Fcdr (Fcdr (name))); | |
933 | ||
934 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
935 | w, h); | |
936 | } | |
937 | else | |
938 | { | |
939 | /* It must be a string -- a file name. */ | |
940 | bitmap_id = x_create_bitmap_from_file (f, name); | |
941 | } | |
942 | UNBLOCK_INPUT; | |
943 | ||
7812a96f | 944 | if (bitmap_id < 0) |
82641697 | 945 | { |
1b8f7fbc | 946 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 947 | bitmap_id = 0; |
cd0bb842 | 948 | |
82641697 GM |
949 | if (w_ptr) |
950 | *w_ptr = 0; | |
951 | if (h_ptr) | |
952 | *h_ptr = 0; | |
953 | } | |
954 | else | |
955 | { | |
956 | #if GLYPH_DEBUG | |
957 | ++npixmaps_allocated; | |
958 | #endif | |
959 | if (w_ptr) | |
960 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
961 | ||
962 | if (h_ptr) | |
963 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
964 | } | |
cd0bb842 RS |
965 | |
966 | return bitmap_id; | |
cb637678 | 967 | } |
87485d6f | 968 | |
82641697 GM |
969 | #endif /* HAVE_X_WINDOWS */ |
970 | ||
87485d6f | 971 | |
82641697 GM |
972 | \f |
973 | /*********************************************************************** | |
974 | Minimum font bounds | |
975 | ***********************************************************************/ | |
976 | ||
977 | #ifdef HAVE_X_WINDOWS | |
978 | ||
d6fc0a22 GM |
979 | /* Update the line_height of frame F. Return non-zero if line height |
980 | changes. */ | |
87485d6f | 981 | |
82641697 GM |
982 | int |
983 | frame_update_line_height (f) | |
87485d6f | 984 | struct frame *f; |
87485d6f | 985 | { |
d6fc0a22 GM |
986 | int fontset, line_height, changed_p; |
987 | ||
988 | fontset = f->output_data.x->fontset; | |
989 | if (fontset > 0) | |
990 | line_height = FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height; | |
991 | else | |
992 | line_height = FONT_HEIGHT (f->output_data.x->font); | |
993 | ||
994 | changed_p = line_height != f->output_data.x->line_height; | |
995 | f->output_data.x->line_height = line_height; | |
82641697 | 996 | return changed_p; |
87485d6f MW |
997 | } |
998 | ||
82641697 GM |
999 | #endif /* HAVE_X_WINDOWS */ |
1000 | ||
1001 | \f | |
1002 | /*********************************************************************** | |
1003 | Fonts | |
1004 | ***********************************************************************/ | |
1005 | ||
1006 | #ifdef HAVE_X_WINDOWS | |
1007 | ||
1008 | /* Load font or fontset of face FACE which is used on frame F. | |
1009 | FONTSET is the fontset FACE should use or -1, if FACE doesn't use a | |
1010 | fontset. FONT_NAME is the name of the font to load, if no fontset | |
1011 | is used. It is null if no suitable font name could be determined | |
1012 | for the face. */ | |
1013 | ||
1014 | static void | |
1015 | load_face_font_or_fontset (f, face, font_name, fontset) | |
1016 | struct frame *f; | |
1017 | struct face *face; | |
1018 | char *font_name; | |
1019 | int fontset; | |
87485d6f | 1020 | { |
82641697 GM |
1021 | struct font_info *font_info = NULL; |
1022 | ||
1023 | face->font_info_id = -1; | |
1024 | face->fontset = fontset; | |
1025 | face->font = NULL; | |
1026 | ||
1027 | BLOCK_INPUT; | |
1028 | if (fontset >= 0) | |
1029 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
1030 | NULL, fontset); | |
1031 | else if (font_name) | |
1032 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), face->charset, | |
1033 | font_name, -1); | |
1034 | UNBLOCK_INPUT; | |
1035 | ||
1036 | if (font_info) | |
1037 | { | |
1038 | char *s; | |
1039 | int i; | |
1040 | ||
1041 | face->font_info_id = FONT_INFO_ID (f, font_info); | |
1042 | face->font = font_info->font; | |
1043 | face->font_name = font_info->full_name; | |
1044 | ||
1045 | /* Make the registry part of the font name readily accessible. | |
1046 | The registry is used to find suitable faces for unibyte text. */ | |
1047 | s = font_info->full_name + strlen (font_info->full_name); | |
1048 | i = 0; | |
1049 | while (i < 2 && --s >= font_info->full_name) | |
1050 | if (*s == '-') | |
1051 | ++i; | |
1052 | ||
1053 | if (!STRINGP (face->registry) | |
1054 | || xstricmp (XSTRING (face->registry)->data, s + 1) != 0) | |
1055 | { | |
1056 | if (STRINGP (Vface_default_registry) | |
1057 | && !xstricmp (XSTRING (Vface_default_registry)->data, s + 1)) | |
1058 | face->registry = Vface_default_registry; | |
1059 | else | |
1060 | face->registry = build_string (s + 1); | |
1061 | } | |
1062 | } | |
1063 | else if (fontset >= 0) | |
1b8f7fbc | 1064 | add_to_log ("Unable to load ASCII font of fontset %d", |
7dbdfcf8 | 1065 | make_number (fontset), Qnil); |
82641697 | 1066 | else if (font_name) |
1b8f7fbc | 1067 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1068 | build_string (font_name), Qnil); |
87485d6f MW |
1069 | } |
1070 | ||
82641697 | 1071 | #endif /* HAVE_X_WINDOWS */ |
87485d6f | 1072 | |
87485d6f | 1073 | |
82641697 GM |
1074 | \f |
1075 | /*********************************************************************** | |
1076 | X Colors | |
1077 | ***********************************************************************/ | |
1078 | ||
2d764c78 EZ |
1079 | /* A version of defined_color for non-X frames. */ |
1080 | int | |
1081 | tty_defined_color (f, color_name, color_def, alloc) | |
1082 | struct frame *f; | |
1083 | char *color_name; | |
1084 | XColor *color_def; | |
1085 | int alloc; | |
1086 | { | |
1087 | Lisp_Object color_desc; | |
1088 | int color_idx = FACE_TTY_DEFAULT_COLOR, red = 0, green = 0, blue = 0; | |
1089 | int status = 1; | |
1090 | ||
1091 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1092 | { | |
a61c12d5 EZ |
1093 | Lisp_Object frame; |
1094 | ||
1095 | XSETFRAME (frame, f); | |
2d764c78 | 1096 | status = 0; |
a61c12d5 | 1097 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1098 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1099 | { |
1100 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1101 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1102 | { | |
1103 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1104 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1105 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1106 | } | |
1107 | status = 1; | |
1108 | } | |
a61c12d5 | 1109 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1110 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1111 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1112 | indication, since this produces the annoying "Unable to |
1113 | load color" messages in the *Messages* buffer. */ | |
1114 | status = 1; | |
1115 | } | |
f9d2fdc4 EZ |
1116 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1117 | { | |
1118 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1119 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1120 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1121 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1122 | } | |
1123 | ||
2d764c78 EZ |
1124 | color_def->pixel = (unsigned long) color_idx; |
1125 | color_def->red = red; | |
1126 | color_def->green = green; | |
1127 | color_def->blue = blue; | |
1128 | ||
1129 | return status; | |
1130 | } | |
1131 | ||
1132 | /* Decide if color named COLOR is valid for the display associated | |
1133 | with the frame F; if so, return the rgb values in COLOR_DEF. If | |
1134 | ALLOC is nonzero, allocate a new colormap cell. | |
1135 | ||
1136 | This does the right thing for any type of frame. */ | |
1137 | int | |
1138 | defined_color (f, color_name, color_def, alloc) | |
1139 | struct frame *f; | |
1140 | char *color_name; | |
1141 | XColor *color_def; | |
1142 | int alloc; | |
1143 | { | |
1144 | if (!FRAME_WINDOW_P (f)) | |
1145 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1146 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1147 | else if (FRAME_X_P (f)) |
1148 | return x_defined_color (f, color_name, color_def, alloc); | |
1149 | #endif | |
1150 | #ifdef WINDOWSNT | |
1151 | else if (FRAME_W32_P (f)) | |
1152 | /* FIXME: w32_defined_color doesn't exist! w32fns.c defines | |
1153 | defined_color which needs to be renamed, and the declaration | |
1154 | of color_def therein should be changed. */ | |
1155 | return w32_defined_color (f, color_name, color_def, alloc); | |
1156 | #endif | |
1157 | #ifdef macintosh | |
1158 | else if (FRAME_MAC_P (f)) | |
1159 | /* FIXME: mac_defined_color doesn't exist! */ | |
1160 | return mac_defined_color (f, color_name, color_def, alloc); | |
1161 | #endif | |
1162 | else | |
1163 | abort (); | |
1164 | } | |
1165 | ||
1166 | /* Given the index of the tty color, return its name, a Lisp string. */ | |
1167 | ||
1168 | Lisp_Object | |
1169 | tty_color_name (f, idx) | |
1170 | struct frame *f; | |
1171 | int idx; | |
1172 | { | |
1173 | char *color; | |
1174 | ||
1175 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) | |
1176 | { | |
a61c12d5 EZ |
1177 | Lisp_Object frame; |
1178 | Lisp_Object coldesc; | |
1179 | ||
1180 | XSETFRAME (frame, f); | |
1181 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1182 | |
1183 | if (!NILP (coldesc)) | |
1184 | return XCAR (coldesc); | |
1185 | } | |
1186 | #ifdef MSDOS | |
1187 | /* We can have an MSDOG frame under -nw for a short window of | |
1188 | opportunity before internal_terminal_init is called. DTRT. */ | |
1189 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1190 | return msdos_stdcolor_name (idx); | |
1191 | #endif | |
1192 | ||
1193 | #ifdef WINDOWSNT | |
1194 | /* FIXME: When/if w32 supports colors in non-window mode, there should | |
1195 | be a call here to a w32-specific function that returns the color | |
1196 | by index using the default color mapping on a Windows console. */ | |
1197 | #endif | |
1198 | ||
ef917393 EZ |
1199 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1200 | return build_string (unspecified_fg); | |
1201 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1202 | return build_string (unspecified_bg); | |
1203 | return Qunspecified; | |
2d764c78 | 1204 | } |
82641697 GM |
1205 | |
1206 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or | |
1207 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1208 | ||
1209 | static int | |
1210 | face_color_gray_p (f, color_name) | |
1211 | struct frame *f; | |
1212 | char *color_name; | |
1213 | { | |
1214 | XColor color; | |
1215 | int gray_p; | |
1216 | ||
1217 | if (defined_color (f, color_name, &color, 0)) | |
1218 | gray_p = ((abs (color.red - color.green) | |
1219 | < max (color.red, color.green) / 20) | |
1220 | && (abs (color.green - color.blue) | |
1221 | < max (color.green, color.blue) / 20) | |
1222 | && (abs (color.blue - color.red) | |
1223 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1224 | else |
82641697 GM |
1225 | gray_p = 0; |
1226 | ||
1227 | return gray_p; | |
87485d6f | 1228 | } |
87485d6f | 1229 | |
cb637678 | 1230 | |
82641697 GM |
1231 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1232 | BACKGROUND_P non-zero means the color will be used as background | |
1233 | color. */ | |
1234 | ||
1235 | static int | |
1236 | face_color_supported_p (f, color_name, background_p) | |
1237 | struct frame *f; | |
1238 | char *color_name; | |
1239 | int background_p; | |
1240 | { | |
1241 | Lisp_Object frame; | |
2d764c78 | 1242 | XColor not_used; |
82641697 GM |
1243 | |
1244 | XSETFRAME (frame, f); | |
8affcced KH |
1245 | return (FRAME_WINDOW_P (f) |
1246 | ? (!NILP (Fxw_display_color_p (frame)) | |
1247 | || xstricmp (color_name, "black") == 0 | |
1248 | || xstricmp (color_name, "white") == 0 | |
1249 | || (background_p | |
1250 | && face_color_gray_p (f, color_name)) | |
1251 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1252 | && face_color_gray_p (f, color_name))) | |
1253 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1254 | } |
82641697 GM |
1255 | |
1256 | ||
da47150d | 1257 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
82641697 GM |
1258 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ |
1259 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1260 | If FRAME is nil or omitted, use the selected frame.") | |
1261 | (color, frame) | |
1262 | Lisp_Object color, frame; | |
cb637678 | 1263 | { |
2d764c78 EZ |
1264 | struct frame *f; |
1265 | ||
1266 | CHECK_FRAME (frame, 0); | |
82641697 | 1267 | CHECK_STRING (color, 0); |
2d764c78 | 1268 | f = XFRAME (frame); |
82641697 GM |
1269 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1270 | } | |
660ed669 | 1271 | |
fffc2367 | 1272 | |
da47150d EZ |
1273 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1274 | Scolor_supported_p, 2, 3, 0, | |
82641697 GM |
1275 | "Return non-nil if COLOR can be displayed on FRAME.\n\ |
1276 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1277 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1278 | COLOR must be a valid color name.") | |
da47150d | 1279 | (color, frame, background_p) |
82641697 GM |
1280 | Lisp_Object frame, color, background_p; |
1281 | { | |
2d764c78 EZ |
1282 | struct frame *f; |
1283 | ||
1284 | CHECK_FRAME (frame, 0); | |
82641697 | 1285 | CHECK_STRING (color, 0); |
2d764c78 | 1286 | f = XFRAME (frame); |
82641697 GM |
1287 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1288 | return Qt; | |
1289 | return Qnil; | |
1290 | } | |
7b37f67b | 1291 | |
82641697 GM |
1292 | /* Load color with name NAME for use by face FACE on frame F. |
1293 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1294 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1295 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1296 | pixel color. If color cannot be loaded, display a message, and | |
1297 | return the foreground, background or underline color of F, but | |
1298 | record that fact in flags of the face so that we don't try to free | |
1299 | these colors. */ | |
1300 | ||
44747bd0 | 1301 | unsigned long |
82641697 GM |
1302 | load_color (f, face, name, target_index) |
1303 | struct frame *f; | |
1304 | struct face *face; | |
1305 | Lisp_Object name; | |
1306 | enum lface_attribute_index target_index; | |
1307 | { | |
1308 | XColor color; | |
1309 | ||
1310 | xassert (STRINGP (name)); | |
1311 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1312 | || target_index == LFACE_BACKGROUND_INDEX | |
1313 | || target_index == LFACE_UNDERLINE_INDEX | |
1314 | || target_index == LFACE_OVERLINE_INDEX | |
1315 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1316 | || target_index == LFACE_BOX_INDEX); | |
1317 | ||
1318 | /* if the color map is full, defined_color will return a best match | |
1319 | to the values in an existing cell. */ | |
1320 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1321 | { | |
2d764c78 | 1322 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
82641697 GM |
1323 | |
1324 | switch (target_index) | |
1120eb5e | 1325 | { |
82641697 GM |
1326 | case LFACE_FOREGROUND_INDEX: |
1327 | face->foreground_defaulted_p = 1; | |
1328 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1329 | break; | |
1330 | ||
1331 | case LFACE_BACKGROUND_INDEX: | |
1332 | face->background_defaulted_p = 1; | |
1333 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1334 | break; | |
1335 | ||
1336 | case LFACE_UNDERLINE_INDEX: | |
1337 | face->underline_defaulted_p = 1; | |
1338 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1339 | break; | |
1340 | ||
1341 | case LFACE_OVERLINE_INDEX: | |
1342 | face->overline_color_defaulted_p = 1; | |
1343 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1344 | break; |
82641697 GM |
1345 | |
1346 | case LFACE_STRIKE_THROUGH_INDEX: | |
1347 | face->strike_through_color_defaulted_p = 1; | |
1348 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1349 | break; | |
1350 | ||
1351 | case LFACE_BOX_INDEX: | |
1352 | face->box_color_defaulted_p = 1; | |
1353 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1354 | break; | |
1355 | ||
1356 | default: | |
1357 | abort (); | |
1120eb5e | 1358 | } |
82641697 GM |
1359 | } |
1360 | #if GLYPH_DEBUG | |
1361 | else | |
1362 | ++ncolors_allocated; | |
1363 | #endif | |
1364 | ||
1365 | return color.pixel; | |
1366 | } | |
1120eb5e | 1367 | |
2d764c78 | 1368 | #ifdef HAVE_X_WINDOWS |
1120eb5e | 1369 | |
82641697 GM |
1370 | /* Load colors for face FACE which is used on frame F. Colors are |
1371 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1372 | of ATTRS. If the background color specified is not supported on F, | |
1373 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1374 | ||
1375 | static void | |
1376 | load_face_colors (f, face, attrs) | |
1377 | struct frame *f; | |
1378 | struct face *face; | |
1379 | Lisp_Object *attrs; | |
1380 | { | |
1381 | Lisp_Object fg, bg; | |
1382 | ||
1383 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1384 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1385 | ||
1386 | /* Swap colors if face is inverse-video. */ | |
1387 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1388 | { | |
1389 | Lisp_Object tmp; | |
1390 | tmp = fg; | |
1391 | fg = bg; | |
1392 | bg = tmp; | |
1393 | } | |
1394 | ||
1395 | /* Check for support for foreground, not for background because | |
1396 | face_color_supported_p is smart enough to know that grays are | |
1397 | "supported" as background because we are supposed to use stipple | |
1398 | for them. */ | |
1399 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1400 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1401 | { |
1402 | x_destroy_bitmap (f, face->stipple); | |
1403 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1404 | &face->pixmap_w, &face->pixmap_h); | |
1405 | } | |
82641697 | 1406 | |
be8a72f4 | 1407 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1408 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1409 | } |
1410 | ||
660ed669 | 1411 | |
82641697 | 1412 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1413 | |
cb637678 | 1414 | void |
82641697 | 1415 | unload_color (f, pixel) |
cb637678 | 1416 | struct frame *f; |
82641697 | 1417 | unsigned long pixel; |
cb637678 | 1418 | { |
42120bc7 | 1419 | Display *dpy = FRAME_X_DISPLAY (f); |
82641697 GM |
1420 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
1421 | ||
1422 | if (pixel == BLACK_PIX_DEFAULT (f) | |
1423 | || pixel == WHITE_PIX_DEFAULT (f)) | |
1424 | return; | |
cb637678 | 1425 | |
660ed669 | 1426 | BLOCK_INPUT; |
82641697 GM |
1427 | |
1428 | /* If display has an immutable color map, freeing colors is not | |
1429 | necessary and some servers don't allow it. So don't do it. */ | |
1430 | if (! (class == StaticColor || class == StaticGray || class == TrueColor)) | |
1431 | { | |
1432 | Colormap cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1433 | XFreeColors (dpy, cmap, &pixel, 1, 0); | |
1434 | } | |
1435 | ||
1436 | UNBLOCK_INPUT; | |
1437 | } | |
1438 | ||
1439 | ||
1440 | /* Free colors allocated for FACE. */ | |
1441 | ||
1442 | static void | |
1443 | free_face_colors (f, face) | |
1444 | struct frame *f; | |
1445 | struct face *face; | |
1446 | { | |
1447 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
1448 | ||
1449 | /* If display has an immutable color map, freeing colors is not | |
1450 | necessary and some servers don't allow it. So don't do it. */ | |
1451 | if (class != StaticColor | |
1452 | && class != StaticGray | |
1453 | && class != TrueColor) | |
1454 | { | |
1455 | Display *dpy; | |
1456 | Colormap cmap; | |
1457 | ||
1458 | BLOCK_INPUT; | |
1459 | dpy = FRAME_X_DISPLAY (f); | |
1460 | cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f)); | |
1461 | ||
1462 | if (face->foreground != BLACK_PIX_DEFAULT (f) | |
1463 | && face->foreground != WHITE_PIX_DEFAULT (f) | |
1464 | && !face->foreground_defaulted_p) | |
1465 | { | |
1466 | XFreeColors (dpy, cmap, &face->foreground, 1, 0); | |
1467 | IF_DEBUG (--ncolors_allocated); | |
1468 | } | |
1469 | ||
1470 | if (face->background != BLACK_PIX_DEFAULT (f) | |
1471 | && face->background != WHITE_PIX_DEFAULT (f) | |
1472 | && !face->background_defaulted_p) | |
1473 | { | |
1474 | XFreeColors (dpy, cmap, &face->background, 1, 0); | |
1475 | IF_DEBUG (--ncolors_allocated); | |
1476 | } | |
1477 | ||
1478 | if (face->underline_p | |
1479 | && !face->underline_defaulted_p | |
1480 | && face->underline_color != BLACK_PIX_DEFAULT (f) | |
1481 | && face->underline_color != WHITE_PIX_DEFAULT (f)) | |
1482 | { | |
1483 | XFreeColors (dpy, cmap, &face->underline_color, 1, 0); | |
1484 | IF_DEBUG (--ncolors_allocated); | |
1485 | } | |
1486 | ||
1487 | if (face->overline_p | |
1488 | && !face->overline_color_defaulted_p | |
1489 | && face->overline_color != BLACK_PIX_DEFAULT (f) | |
1490 | && face->overline_color != WHITE_PIX_DEFAULT (f)) | |
1491 | { | |
1492 | XFreeColors (dpy, cmap, &face->overline_color, 1, 0); | |
1493 | IF_DEBUG (--ncolors_allocated); | |
1494 | } | |
1495 | ||
1496 | if (face->strike_through_p | |
1497 | && !face->strike_through_color_defaulted_p | |
1498 | && face->strike_through_color != BLACK_PIX_DEFAULT (f) | |
1499 | && face->strike_through_color != WHITE_PIX_DEFAULT (f)) | |
1500 | { | |
1501 | XFreeColors (dpy, cmap, &face->strike_through_color, 1, 0); | |
1502 | IF_DEBUG (--ncolors_allocated); | |
1503 | } | |
1504 | ||
1505 | if (face->box != FACE_NO_BOX | |
1506 | && !face->box_color_defaulted_p | |
1507 | && face->box_color != BLACK_PIX_DEFAULT (f) | |
1508 | && face->box_color != WHITE_PIX_DEFAULT (f)) | |
1509 | { | |
1510 | XFreeColors (dpy, cmap, &face->box_color, 1, 0); | |
1511 | IF_DEBUG (--ncolors_allocated); | |
1512 | } | |
1513 | ||
1514 | UNBLOCK_INPUT; | |
1515 | } | |
1516 | } | |
2d764c78 | 1517 | #endif /* HAVE_X_WINDOWS */ |
82641697 GM |
1518 | |
1519 | ||
1520 | \f | |
1521 | /*********************************************************************** | |
1522 | XLFD Font Names | |
1523 | ***********************************************************************/ | |
1524 | ||
1525 | /* An enumerator for each field of an XLFD font name. */ | |
1526 | ||
1527 | enum xlfd_field | |
1528 | { | |
1529 | XLFD_FOUNDRY, | |
1530 | XLFD_FAMILY, | |
1531 | XLFD_WEIGHT, | |
1532 | XLFD_SLANT, | |
1533 | XLFD_SWIDTH, | |
1534 | XLFD_ADSTYLE, | |
1535 | XLFD_PIXEL_SIZE, | |
1536 | XLFD_POINT_SIZE, | |
1537 | XLFD_RESX, | |
1538 | XLFD_RESY, | |
1539 | XLFD_SPACING, | |
1540 | XLFD_AVGWIDTH, | |
1541 | XLFD_REGISTRY, | |
1542 | XLFD_ENCODING, | |
1543 | XLFD_LAST | |
1544 | }; | |
1545 | ||
1546 | /* An enumerator for each possible slant value of a font. Taken from | |
1547 | the XLFD specification. */ | |
1548 | ||
1549 | enum xlfd_slant | |
1550 | { | |
1551 | XLFD_SLANT_UNKNOWN, | |
1552 | XLFD_SLANT_ROMAN, | |
1553 | XLFD_SLANT_ITALIC, | |
1554 | XLFD_SLANT_OBLIQUE, | |
1555 | XLFD_SLANT_REVERSE_ITALIC, | |
1556 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1557 | XLFD_SLANT_OTHER | |
1558 | }; | |
1559 | ||
1560 | /* Relative font weight according to XLFD documentation. */ | |
1561 | ||
1562 | enum xlfd_weight | |
1563 | { | |
1564 | XLFD_WEIGHT_UNKNOWN, | |
1565 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1566 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1567 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1568 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1569 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1570 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1571 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1572 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1573 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1574 | }; | |
1575 | ||
1576 | /* Relative proportionate width. */ | |
1577 | ||
1578 | enum xlfd_swidth | |
1579 | { | |
1580 | XLFD_SWIDTH_UNKNOWN, | |
1581 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1582 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1583 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1584 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1585 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1586 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1587 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1588 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1589 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1590 | }; | |
1591 | ||
1592 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1593 | names to numeric and symbolic values. */ | |
1594 | ||
1595 | struct table_entry | |
1596 | { | |
1597 | char *name; | |
1598 | int numeric; | |
1599 | Lisp_Object *symbol; | |
1600 | }; | |
1601 | ||
1602 | /* Table of XLFD slant names and their numeric and symbolic | |
1603 | representations. This table must be sorted by slant names in | |
1604 | ascending order. */ | |
1605 | ||
1606 | static struct table_entry slant_table[] = | |
1607 | { | |
1608 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1609 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1610 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1611 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1612 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1613 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1614 | }; | |
1615 | ||
1616 | /* Table of XLFD weight names. This table must be sorted by weight | |
1617 | names in ascending order. */ | |
1618 | ||
1619 | static struct table_entry weight_table[] = | |
1620 | { | |
1621 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1622 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1623 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1624 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1625 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1626 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1627 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1628 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1629 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1630 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1631 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1632 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1633 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1634 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1635 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1636 | }; | |
1637 | ||
1638 | /* Table of XLFD width names. This table must be sorted by width | |
1639 | names in ascending order. */ | |
1640 | ||
1641 | static struct table_entry swidth_table[] = | |
1642 | { | |
1643 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1644 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1645 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1646 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1647 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1648 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1649 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1650 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1651 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1652 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1653 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1654 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1655 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1656 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1657 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1658 | }; | |
1659 | ||
1660 | /* Structure used to hold the result of splitting font names in XLFD | |
1661 | format into their fields. */ | |
1662 | ||
1663 | struct font_name | |
1664 | { | |
1665 | /* The original name which is modified destructively by | |
1666 | split_font_name. The pointer is kept here to be able to free it | |
1667 | if it was allocated from the heap. */ | |
1668 | char *name; | |
1669 | ||
1670 | /* Font name fields. Each vector element points into `name' above. | |
1671 | Fields are NUL-terminated. */ | |
1672 | char *fields[XLFD_LAST]; | |
1673 | ||
1674 | /* Numeric values for those fields that interest us. See | |
1675 | split_font_name for which these are. */ | |
1676 | int numeric[XLFD_LAST]; | |
1677 | }; | |
1678 | ||
1679 | /* The frame in effect when sorting font names. Set temporarily in | |
1680 | sort_fonts so that it is available in font comparison functions. */ | |
1681 | ||
1682 | static struct frame *font_frame; | |
1683 | ||
1684 | /* Order by which font selection chooses fonts. The default values | |
1685 | mean `first, find a best match for the font width, then for the | |
1686 | font height, then for weight, then for slant.' This variable can be | |
1687 | set via set-face-font-sort-order. */ | |
1688 | ||
1689 | static int font_sort_order[4]; | |
1690 | ||
1691 | ||
1692 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1693 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1694 | is a pointer to the matching table entry or null if no table entry | |
1695 | matches. */ | |
1696 | ||
1697 | static struct table_entry * | |
1698 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1699 | struct table_entry *table; | |
1700 | int dim; | |
1701 | struct font_name *font; | |
1702 | int field_index; | |
1703 | { | |
1704 | /* Function split_font_name converts fields to lower-case, so there | |
1705 | is no need to use xstrlwr or xstricmp here. */ | |
1706 | char *s = font->fields[field_index]; | |
1707 | int low, mid, high, cmp; | |
1708 | ||
1709 | low = 0; | |
1710 | high = dim - 1; | |
1711 | ||
1712 | while (low <= high) | |
1713 | { | |
1714 | mid = (low + high) / 2; | |
1715 | cmp = strcmp (table[mid].name, s); | |
1716 | ||
1717 | if (cmp < 0) | |
1718 | low = mid + 1; | |
1719 | else if (cmp > 0) | |
1720 | high = mid - 1; | |
1721 | else | |
1722 | return table + mid; | |
1723 | } | |
1724 | ||
1725 | return NULL; | |
1726 | } | |
1727 | ||
1728 | ||
1729 | /* Return a numeric 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 numeric 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 numeric values. */ | |
1734 | ||
1735 | static INLINE int | |
1736 | xlfd_numeric_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->numeric : dflt; | |
1746 | } | |
1747 | ||
1748 | ||
1749 | /* Return a symbolic representation for font name field | |
1750 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1751 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1752 | table entry matches. This function is used to translate weight, | |
1753 | slant, and swidth names of XLFD font names to symbols. */ | |
1754 | ||
1755 | static INLINE Lisp_Object | |
1756 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1757 | struct table_entry *table; | |
1758 | int dim; | |
1759 | struct font_name *font; | |
1760 | int field_index; | |
1761 | int dflt; | |
1762 | { | |
1763 | struct table_entry *p; | |
1764 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1765 | return p ? *p->symbol : dflt; | |
1766 | } | |
1767 | ||
1768 | ||
1769 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1770 | ||
1771 | static INLINE int | |
1772 | xlfd_numeric_slant (font) | |
1773 | struct font_name *font; | |
1774 | { | |
1775 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1776 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1777 | } | |
1778 | ||
1779 | ||
1780 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1781 | ||
1782 | static INLINE Lisp_Object | |
1783 | xlfd_symbolic_slant (font) | |
1784 | struct font_name *font; | |
1785 | { | |
1786 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1787 | font, XLFD_SLANT, Qnormal); | |
1788 | } | |
1789 | ||
1790 | ||
1791 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1792 | ||
1793 | static INLINE int | |
1794 | xlfd_numeric_weight (font) | |
1795 | struct font_name *font; | |
1796 | { | |
1797 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1798 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1799 | } | |
1800 | ||
1801 | ||
1802 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1803 | ||
1804 | static INLINE Lisp_Object | |
1805 | xlfd_symbolic_weight (font) | |
1806 | struct font_name *font; | |
1807 | { | |
1808 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1809 | font, XLFD_WEIGHT, Qnormal); | |
1810 | } | |
1811 | ||
1812 | ||
1813 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1814 | name fields are found in FONT. */ | |
1815 | ||
1816 | static INLINE int | |
1817 | xlfd_numeric_swidth (font) | |
1818 | struct font_name *font; | |
1819 | { | |
1820 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1821 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1822 | } | |
1823 | ||
1824 | ||
1825 | /* Return a symbolic value for the swidth of FONT. */ | |
1826 | ||
1827 | static INLINE Lisp_Object | |
1828 | xlfd_symbolic_swidth (font) | |
1829 | struct font_name *font; | |
1830 | { | |
1831 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1832 | font, XLFD_SWIDTH, Qnormal); | |
1833 | } | |
1834 | ||
1835 | ||
1836 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1837 | entries. Value is a pointer to the matching table entry or null if | |
1838 | no element of TABLE contains SYMBOL. */ | |
1839 | ||
1840 | static struct table_entry * | |
1841 | face_value (table, dim, symbol) | |
1842 | struct table_entry *table; | |
1843 | int dim; | |
1844 | Lisp_Object symbol; | |
1845 | { | |
1846 | int i; | |
1847 | ||
1848 | xassert (SYMBOLP (symbol)); | |
1849 | ||
1850 | for (i = 0; i < dim; ++i) | |
1851 | if (EQ (*table[i].symbol, symbol)) | |
1852 | break; | |
1853 | ||
1854 | return i < dim ? table + i : NULL; | |
1855 | } | |
1856 | ||
1857 | ||
1858 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1859 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1860 | ||
1861 | static INLINE int | |
1862 | face_numeric_value (table, dim, symbol) | |
1863 | struct table_entry *table; | |
1864 | int dim; | |
1865 | Lisp_Object symbol; | |
1866 | { | |
1867 | struct table_entry *p = face_value (table, dim, symbol); | |
1868 | return p ? p->numeric : -1; | |
1869 | } | |
1870 | ||
1871 | ||
1872 | /* Return a numeric value representing the weight specified by Lisp | |
1873 | symbol WEIGHT. Value is one of the enumerators of enum | |
1874 | xlfd_weight. */ | |
1875 | ||
1876 | static INLINE int | |
1877 | face_numeric_weight (weight) | |
1878 | Lisp_Object weight; | |
1879 | { | |
1880 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1881 | } | |
1882 | ||
1883 | ||
1884 | /* Return a numeric value representing the slant specified by Lisp | |
1885 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
1886 | ||
1887 | static INLINE int | |
1888 | face_numeric_slant (slant) | |
1889 | Lisp_Object slant; | |
1890 | { | |
1891 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
1892 | } | |
1893 | ||
1894 | ||
1895 | /* Return a numeric value representing the swidth specified by Lisp | |
1896 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
1897 | ||
1898 | static int | |
1899 | face_numeric_swidth (width) | |
1900 | Lisp_Object width; | |
1901 | { | |
1902 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
1903 | } | |
1904 | ||
1905 | ||
1906 | #ifdef HAVE_X_WINDOWS | |
1907 | ||
1908 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
1909 | ||
1910 | static INLINE int | |
1911 | xlfd_fixed_p (font) | |
1912 | struct font_name *font; | |
1913 | { | |
1914 | /* Function split_font_name converts fields to lower-case, so there | |
1915 | is no need to use tolower here. */ | |
1916 | return *font->fields[XLFD_SPACING] != 'p'; | |
1917 | } | |
1918 | ||
1919 | ||
1920 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
1921 | ||
1922 | The actual height of the font when displayed on F depends on the | |
1923 | resolution of both the font and frame. For example, a 10pt font | |
1924 | designed for a 100dpi display will display larger than 10pt on a | |
1925 | 75dpi display. (It's not unusual to use fonts not designed for the | |
1926 | display one is using. For example, some intlfonts are available in | |
1927 | 72dpi versions, only.) | |
1928 | ||
1929 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
1930 | be determined. */ | |
1931 | ||
1932 | static INLINE int | |
1933 | xlfd_point_size (f, font) | |
1934 | struct frame *f; | |
1935 | struct font_name *font; | |
1936 | { | |
1937 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
1938 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
1939 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
1940 | int real_pt; | |
1941 | ||
1942 | if (font_resy == 0 || font_pt == 0) | |
1943 | real_pt = 0; | |
1944 | else | |
1945 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
1946 | ||
1947 | return real_pt; | |
1948 | } | |
1949 | ||
1950 | ||
1951 | /* Split XLFD font name FONT->name destructively into NUL-terminated, | |
1952 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
1953 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
1954 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
1955 | zero if the font name doesn't have the format we expect. The | |
1956 | expected format is a font name that starts with a `-' and has | |
1957 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
1958 | forms of font names where certain field contents are enclosed in | |
1959 | square brackets. We don't support that, for now. */ | |
1960 | ||
1961 | static int | |
1962 | split_font_name (f, font, numeric_p) | |
1963 | struct frame *f; | |
1964 | struct font_name *font; | |
1965 | int numeric_p; | |
1966 | { | |
1967 | int i = 0; | |
1968 | int success_p; | |
1969 | ||
1970 | if (*font->name == '-') | |
1971 | { | |
1972 | char *p = xstrlwr (font->name) + 1; | |
1973 | ||
1974 | while (i < XLFD_LAST) | |
1975 | { | |
1976 | font->fields[i] = p; | |
1977 | ++i; | |
1978 | ||
1979 | while (*p && *p != '-') | |
1980 | ++p; | |
1981 | ||
1982 | if (*p != '-') | |
1983 | break; | |
1984 | ||
1985 | *p++ = 0; | |
1986 | } | |
1987 | } | |
1988 | ||
1989 | success_p = i == XLFD_LAST; | |
1990 | ||
1991 | /* If requested, and font name was in the expected format, | |
1992 | compute numeric values for some fields. */ | |
1993 | if (numeric_p && success_p) | |
1994 | { | |
1995 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
1996 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
1997 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
1998 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
1999 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
2000 | } | |
2001 | ||
2002 | return success_p; | |
2003 | } | |
2004 | ||
2005 | ||
2006 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2007 | pointer to the font name, which is allocated via xmalloc. */ | |
2008 | ||
2009 | static char * | |
2010 | build_font_name (font) | |
2011 | struct font_name *font; | |
2012 | { | |
2013 | int i; | |
2014 | int size = 100; | |
2015 | char *font_name = (char *) xmalloc (size); | |
2016 | int total_length = 0; | |
2017 | ||
2018 | for (i = 0; i < XLFD_LAST; ++i) | |
2019 | { | |
2020 | /* Add 1 because of the leading `-'. */ | |
2021 | int len = strlen (font->fields[i]) + 1; | |
2022 | ||
2023 | /* Reallocate font_name if necessary. Add 1 for the final | |
2024 | NUL-byte. */ | |
2025 | if (total_length + len + 1 >= size) | |
2026 | { | |
2027 | int new_size = max (2 * size, size + len + 1); | |
2028 | int sz = new_size * sizeof *font_name; | |
2029 | font_name = (char *) xrealloc (font_name, sz); | |
2030 | size = new_size; | |
2031 | } | |
2032 | ||
2033 | font_name[total_length] = '-'; | |
2034 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2035 | total_length += len; | |
2036 | } | |
2037 | ||
2038 | font_name[total_length] = 0; | |
2039 | return font_name; | |
2040 | } | |
2041 | ||
2042 | ||
2043 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2044 | itself and all `name' fields in its elements. */ | |
2045 | ||
2046 | static INLINE void | |
2047 | free_font_names (fonts, n) | |
2048 | struct font_name *fonts; | |
2049 | int n; | |
2050 | { | |
2051 | while (n) | |
2052 | xfree (fonts[--n].name); | |
2053 | xfree (fonts); | |
2054 | } | |
2055 | ||
2056 | ||
2057 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2058 | elements using qsort and comparison function CMPFN. F is the frame | |
2059 | on which the fonts will be used. The global variable font_frame | |
2060 | is temporarily set to F to make it available in CMPFN. */ | |
2061 | ||
2062 | static INLINE void | |
2063 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2064 | struct frame *f; | |
2065 | struct font_name *fonts; | |
2066 | int nfonts; | |
2067 | int (*cmpfn) P_ ((const void *, const void *)); | |
2068 | { | |
2069 | font_frame = f; | |
2070 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2071 | font_frame = NULL; | |
2072 | } | |
2073 | ||
2074 | ||
2075 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2076 | display in x_display_list. FONTS is a pointer to a vector of | |
2077 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2078 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2079 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2080 | scalable fonts. | |
2081 | ||
2082 | For all fonts found, set FONTS[i].name to the name of the font, | |
2083 | allocated via xmalloc, and split font names into fields. Ignore | |
2084 | fonts that we can't parse. Value is the number of fonts found. | |
2085 | ||
2086 | This is similar to x_list_fonts. The differences are: | |
2087 | ||
2088 | 1. It avoids consing. | |
2089 | 2. It never calls XLoadQueryFont. */ | |
2090 | ||
2091 | static int | |
2092 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2093 | scalable_fonts_p) | |
2094 | struct frame *f; | |
2095 | char *pattern; | |
2096 | struct font_name *fonts; | |
2097 | int nfonts, try_alternatives_p; | |
2098 | int scalable_fonts_p; | |
2099 | { | |
2100 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
2101 | int n, i, j; | |
2102 | char **names; | |
2103 | ||
2104 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2105 | BLOCK_INPUT; | |
2106 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2107 | UNBLOCK_INPUT; | |
2108 | ||
2109 | if (names) | |
2110 | { | |
2111 | /* Make a copy of the font names we got from X, and | |
2112 | split them into fields. */ | |
2113 | for (i = j = 0; i < n; ++i) | |
2114 | { | |
2115 | /* Make a copy of the font name. */ | |
2116 | fonts[j].name = xstrdup (names[i]); | |
2117 | ||
2118 | /* Ignore fonts having a name that we can't parse. */ | |
2119 | if (!split_font_name (f, fonts + j, 1)) | |
2120 | xfree (fonts[j].name); | |
2121 | else if (font_scalable_p (fonts + j)) | |
2122 | { | |
2123 | #if SCALABLE_FONTS | |
2124 | if (!scalable_fonts_p | |
2125 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2126 | xfree (fonts[j].name); | |
2127 | else | |
2128 | ++j; | |
2129 | #else /* !SCALABLE_FONTS */ | |
2130 | /* Always ignore scalable fonts. */ | |
2131 | xfree (fonts[j].name); | |
2132 | #endif /* !SCALABLE_FONTS */ | |
2133 | } | |
2134 | else | |
2135 | ++j; | |
2136 | } | |
2137 | ||
2138 | n = j; | |
2139 | ||
2140 | /* Free font names. */ | |
2141 | BLOCK_INPUT; | |
2142 | XFreeFontNames (names); | |
2143 | UNBLOCK_INPUT; | |
2144 | } | |
2145 | ||
2146 | ||
2147 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2148 | if (n == 0 && try_alternatives_p) | |
2149 | { | |
2150 | Lisp_Object list = Valternate_fontname_alist; | |
2151 | ||
2152 | while (CONSP (list)) | |
2153 | { | |
2154 | Lisp_Object entry = XCAR (list); | |
2155 | if (CONSP (entry) | |
2156 | && STRINGP (XCAR (entry)) | |
2157 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2158 | break; | |
2159 | list = XCDR (list); | |
2160 | } | |
2161 | ||
2162 | if (CONSP (list)) | |
2163 | { | |
2164 | Lisp_Object patterns = XCAR (list); | |
2165 | Lisp_Object name; | |
2166 | ||
2167 | while (CONSP (patterns) | |
2168 | /* If list is screwed up, give up. */ | |
2169 | && (name = XCAR (patterns), | |
2170 | STRINGP (name)) | |
2171 | /* Ignore patterns equal to PATTERN because we tried that | |
2172 | already with no success. */ | |
2173 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2174 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2175 | fonts, nfonts, 0, | |
2176 | scalable_fonts_p), | |
2177 | n == 0))) | |
2178 | patterns = XCDR (patterns); | |
2179 | } | |
2180 | } | |
2181 | ||
2182 | return n; | |
2183 | } | |
2184 | ||
2185 | ||
2186 | /* Determine the first font matching PATTERN on frame F. Return in | |
2187 | *FONT the matching font name, split into fields. Value is non-zero | |
2188 | if a match was found. */ | |
2189 | ||
2190 | static int | |
2191 | first_font_matching (f, pattern, font) | |
2192 | struct frame *f; | |
2193 | char *pattern; | |
2194 | struct font_name *font; | |
2195 | { | |
2196 | int nfonts = 100; | |
2197 | struct font_name *fonts; | |
2198 | ||
2199 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2200 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2201 | ||
2202 | if (nfonts > 0) | |
2203 | { | |
2204 | bcopy (&fonts[0], font, sizeof *font); | |
2205 | ||
2206 | fonts[0].name = NULL; | |
2207 | free_font_names (fonts, nfonts); | |
2208 | } | |
2209 | ||
2210 | return nfonts > 0; | |
2211 | } | |
2212 | ||
2213 | ||
2214 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2215 | using comparison function CMPFN. Value is the number of fonts | |
2216 | found. If value is non-zero, *FONTS is set to a vector of | |
2217 | font_name structures allocated from the heap containing matching | |
2218 | fonts. Each element of *FONTS contains a name member that is also | |
2219 | allocated from the heap. Font names in these structures are split | |
2220 | into fields. Use free_font_names to free such an array. */ | |
2221 | ||
2222 | static int | |
2223 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2224 | struct frame *f; | |
2225 | char *pattern; | |
2226 | int (*cmpfn) P_ ((const void *, const void *)); | |
2227 | struct font_name **fonts; | |
2228 | { | |
2229 | int nfonts; | |
2230 | ||
2231 | /* Get the list of fonts matching pattern. 100 should suffice. */ | |
057df17c GM |
2232 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2233 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2234 | nfonts = XFASTINT (Vfont_list_limit); | |
2235 | ||
82641697 GM |
2236 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2237 | #if SCALABLE_FONTS | |
2238 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2239 | #else | |
2240 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2241 | #endif | |
2242 | ||
2243 | /* Sort the resulting array and return it in *FONTS. If no | |
2244 | fonts were found, make sure to set *FONTS to null. */ | |
2245 | if (nfonts) | |
2246 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2247 | else | |
2248 | { | |
2249 | xfree (*fonts); | |
2250 | *fonts = NULL; | |
2251 | } | |
2252 | ||
2253 | return nfonts; | |
2254 | } | |
2255 | ||
2256 | ||
2257 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2258 | strcmp. Sort order is given by the global variable | |
2259 | font_sort_order. Font names are sorted so that, everything else | |
2260 | being equal, fonts with a resolution closer to that of the frame on | |
2261 | which they are used are listed first. The global variable | |
2262 | font_frame is the frame on which we operate. */ | |
2263 | ||
2264 | static int | |
2265 | cmp_font_names (a, b) | |
2266 | const void *a, *b; | |
2267 | { | |
2268 | struct font_name *x = (struct font_name *) a; | |
2269 | struct font_name *y = (struct font_name *) b; | |
2270 | int cmp; | |
2271 | ||
2272 | /* All strings have been converted to lower-case by split_font_name, | |
2273 | so we can use strcmp here. */ | |
2274 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2275 | if (cmp == 0) | |
2276 | { | |
2277 | int i; | |
2278 | ||
2279 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) | |
2280 | { | |
2281 | int j = font_sort_order[i]; | |
2282 | cmp = x->numeric[j] - y->numeric[j]; | |
2283 | } | |
2284 | ||
2285 | if (cmp == 0) | |
2286 | { | |
2287 | /* Everything else being equal, we prefer fonts with an | |
2288 | y-resolution closer to that of the frame. */ | |
2289 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2290 | int x_resy = x->numeric[XLFD_RESY]; | |
2291 | int y_resy = y->numeric[XLFD_RESY]; | |
2292 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2293 | } | |
2294 | } | |
2295 | ||
2296 | return cmp; | |
2297 | } | |
2298 | ||
2299 | ||
2300 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
2301 | is non-null list fonts matching that pattern. Otherwise, if | |
2302 | REGISTRY_AND_ENCODING is non-null return only fonts with that | |
2303 | registry and encoding, otherwise return fonts of any registry and | |
2304 | encoding. Set *FONTS to a vector of font_name structures allocated | |
2305 | from the heap containing the fonts found. Value is the number of | |
2306 | fonts found. */ | |
2307 | ||
2308 | static int | |
2309 | font_list (f, pattern, family, registry_and_encoding, fonts) | |
2310 | struct frame *f; | |
2311 | char *pattern; | |
2312 | char *family; | |
2313 | char *registry_and_encoding; | |
2314 | struct font_name **fonts; | |
2315 | { | |
2316 | if (pattern == NULL) | |
2317 | { | |
2318 | if (family == NULL) | |
2319 | family = "*"; | |
2320 | ||
2321 | if (registry_and_encoding == NULL) | |
2322 | registry_and_encoding = "*"; | |
2323 | ||
2324 | pattern = (char *) alloca (strlen (family) | |
2325 | + strlen (registry_and_encoding) | |
2326 | + 10); | |
2327 | if (index (family, '-')) | |
2328 | sprintf (pattern, "-%s-*-%s", family, registry_and_encoding); | |
2329 | else | |
2330 | sprintf (pattern, "-*-%s-*-%s", family, registry_and_encoding); | |
2331 | } | |
2332 | ||
2333 | return sorted_font_list (f, pattern, cmp_font_names, fonts); | |
2334 | } | |
2335 | ||
2336 | ||
2337 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2338 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2339 | entries. */ |
2340 | ||
2341 | static void | |
2342 | remove_duplicates (list) | |
2343 | Lisp_Object list; | |
2344 | { | |
2345 | Lisp_Object tail = list; | |
2346 | ||
2347 | while (!NILP (tail) && !NILP (XCDR (tail))) | |
2348 | { | |
2349 | Lisp_Object next = XCDR (tail); | |
2350 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2351 | XCDR (tail) = XCDR (next); | |
2352 | else | |
2353 | tail = XCDR (tail); | |
2354 | } | |
2355 | } | |
2356 | ||
2357 | ||
92610620 | 2358 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2359 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2360 | If FAMILY is omitted or nil, list all families.\n\ | |
2361 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2362 | `?' and `*'.\n\ | |
2363 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2364 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2365 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2366 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2367 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2368 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2369 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2370 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2371 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2372 | The result list is sorted according to the current setting of\n\ |
2373 | the face font sort order.") | |
2374 | (family, frame) | |
2375 | Lisp_Object family, frame; | |
2376 | { | |
2377 | struct frame *f = check_x_frame (frame); | |
2378 | struct font_name *fonts; | |
2379 | int i, nfonts; | |
2380 | Lisp_Object result; | |
2381 | struct gcpro gcpro1; | |
2382 | char *family_pattern; | |
2383 | ||
2384 | if (NILP (family)) | |
2385 | family_pattern = "*"; | |
2386 | else | |
2387 | { | |
2388 | CHECK_STRING (family, 1); | |
2389 | family_pattern = LSTRDUPA (family); | |
2390 | } | |
2391 | ||
2392 | result = Qnil; | |
2393 | GCPRO1 (result); | |
2394 | nfonts = font_list (f, NULL, family_pattern, NULL, &fonts); | |
2395 | for (i = nfonts - 1; i >= 0; --i) | |
2396 | { | |
057df17c GM |
2397 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2398 | char *tem; | |
82641697 GM |
2399 | |
2400 | #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) | |
2401 | ||
2402 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); | |
2403 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2404 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2405 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2406 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2407 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2408 | tem = build_font_name (fonts + i); |
2409 | ASET (v, 6, build_string (tem)); | |
2410 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2411 | fonts[i].fields[XLFD_ENCODING]); | |
2412 | ASET (v, 7, build_string (tem)); | |
2413 | xfree (tem); | |
2414 | ||
82641697 GM |
2415 | result = Fcons (v, result); |
2416 | ||
2417 | #undef ASET | |
2418 | } | |
2419 | ||
2420 | remove_duplicates (result); | |
2421 | free_font_names (fonts, nfonts); | |
2422 | UNGCPRO; | |
2423 | return result; | |
2424 | } | |
2425 | ||
2426 | ||
2427 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2428 | 0, 1, 0, | |
2429 | "Return a list of available font families on FRAME.\n\ | |
2430 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2431 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2432 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2433 | are fixed-pitch.") | |
2434 | (frame) | |
2435 | Lisp_Object frame; | |
2436 | { | |
2437 | struct frame *f = check_x_frame (frame); | |
2438 | int nfonts, i; | |
2439 | struct font_name *fonts; | |
2440 | Lisp_Object result; | |
2441 | struct gcpro gcpro1; | |
057df17c GM |
2442 | int count = specpdl_ptr - specpdl; |
2443 | int limit; | |
2444 | ||
2445 | /* Let's consider all fonts. Increase the limit for matching | |
2446 | fonts until we have them all. */ | |
2447 | for (limit = 500;;) | |
2448 | { | |
2449 | specbind (intern ("font-list-limit"), make_number (limit)); | |
2450 | nfonts = font_list (f, NULL, "*", NULL, &fonts); | |
2451 | ||
2452 | if (nfonts == limit) | |
2453 | { | |
2454 | free_font_names (fonts, nfonts); | |
2455 | limit *= 2; | |
2456 | } | |
2457 | else | |
2458 | break; | |
2459 | } | |
82641697 | 2460 | |
82641697 GM |
2461 | result = Qnil; |
2462 | GCPRO1 (result); | |
2463 | for (i = nfonts - 1; i >= 0; --i) | |
2464 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2465 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2466 | result); | |
2467 | ||
2468 | remove_duplicates (result); | |
2469 | free_font_names (fonts, nfonts); | |
2470 | UNGCPRO; | |
057df17c | 2471 | return unbind_to (count, result); |
82641697 GM |
2472 | } |
2473 | ||
2474 | ||
2475 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2476 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2477 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2478 | the same size as FACE on FRAME.\n\ | |
2479 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2480 | the * character matches any substring, and\n\ | |
2481 | the ? character matches any single character.\n\ | |
2482 | PATTERN is case-insensitive.\n\ | |
2483 | FACE is a face name--a symbol.\n\ | |
2484 | \n\ | |
2485 | The return value is a list of strings, suitable as arguments to\n\ | |
2486 | set-face-font.\n\ | |
2487 | \n\ | |
2488 | Fonts Emacs can't use may or may not be excluded\n\ | |
2489 | even if they match PATTERN and FACE.\n\ | |
2490 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2491 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2492 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2493 | occupied by a character of a font. In that case, return only fonts\n\ | |
2494 | the WIDTH times as wide as FACE on FRAME.") | |
2495 | (pattern, face, frame, maximum, width) | |
2496 | Lisp_Object pattern, face, frame, maximum, width; | |
2497 | { | |
2498 | struct frame *f; | |
2499 | int size; | |
2500 | int maxnames; | |
2501 | ||
2502 | check_x (); | |
2503 | CHECK_STRING (pattern, 0); | |
2504 | ||
2505 | if (NILP (maximum)) | |
2506 | maxnames = 2000; | |
2507 | else | |
2508 | { | |
2509 | CHECK_NATNUM (maximum, 0); | |
2510 | maxnames = XINT (maximum); | |
2511 | } | |
2512 | ||
2513 | if (!NILP (width)) | |
2514 | CHECK_NUMBER (width, 4); | |
2515 | ||
2516 | /* We can't simply call check_x_frame because this function may be | |
2517 | called before any frame is created. */ | |
2518 | f = frame_or_selected_frame (frame, 2); | |
2519 | if (!FRAME_X_P (f)) | |
2520 | { | |
2521 | /* Perhaps we have not yet created any frame. */ | |
2522 | f = NULL; | |
2523 | face = Qnil; | |
2524 | } | |
2525 | ||
2526 | /* Determine the width standard for comparison with the fonts we find. */ | |
2527 | ||
2528 | if (NILP (face)) | |
2529 | size = 0; | |
2530 | else | |
2531 | { | |
2532 | /* This is of limited utility since it works with character | |
2533 | widths. Keep it for compatibility. --gerd. */ | |
2534 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
2535 | struct face *face = FACE_FROM_ID (f, face_id); | |
2536 | ||
2537 | if (face->font) | |
2538 | size = face->font->max_bounds.width; | |
2539 | else | |
2540 | size = FRAME_FONT (f)->max_bounds.width; | |
2541 | ||
2542 | if (!NILP (width)) | |
2543 | size *= XINT (width); | |
2544 | } | |
2545 | ||
2546 | { | |
2547 | Lisp_Object args[2]; | |
2548 | ||
2549 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2550 | if (f == NULL) | |
2551 | /* We don't have to check fontsets. */ | |
2552 | return args[0]; | |
2553 | args[1] = list_fontsets (f, pattern, size); | |
2554 | return Fnconc (2, args); | |
2555 | } | |
2556 | } | |
2557 | ||
2558 | #endif /* HAVE_X_WINDOWS */ | |
2559 | ||
2560 | ||
2561 | \f | |
2562 | /*********************************************************************** | |
2563 | Lisp Faces | |
2564 | ***********************************************************************/ | |
2565 | ||
2566 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2567 | ||
2568 | #define LFACE_FAMILY(LFACE) \ | |
2569 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2570 | #define LFACE_HEIGHT(LFACE) \ | |
2571 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2572 | #define LFACE_WEIGHT(LFACE) \ | |
2573 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2574 | #define LFACE_SLANT(LFACE) \ | |
2575 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2576 | #define LFACE_UNDERLINE(LFACE) \ | |
2577 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2578 | #define LFACE_INVERSE(LFACE) \ | |
2579 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2580 | #define LFACE_FOREGROUND(LFACE) \ | |
2581 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2582 | #define LFACE_BACKGROUND(LFACE) \ | |
2583 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2584 | #define LFACE_STIPPLE(LFACE) \ | |
2585 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2586 | #define LFACE_SWIDTH(LFACE) \ | |
2587 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2588 | #define LFACE_OVERLINE(LFACE) \ | |
2589 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2590 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2591 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2592 | #define LFACE_BOX(LFACE) \ | |
2593 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
2594 | ||
2595 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2596 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2597 | ||
2598 | #define LFACEP(LFACE) \ | |
2599 | (VECTORP (LFACE) \ | |
2600 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2601 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2602 | ||
2603 | ||
2604 | #if GLYPH_DEBUG | |
2605 | ||
2606 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2607 | ||
2608 | static void | |
2609 | check_lface_attrs (attrs) | |
2610 | Lisp_Object *attrs; | |
2611 | { | |
2612 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2613 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2614 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2615 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2616 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2617 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); | |
2618 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
2619 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2620 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2621 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2622 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2623 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2624 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2625 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2626 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2627 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2628 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2629 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2630 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2631 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2632 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2633 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2634 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2635 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2636 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2637 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2638 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2639 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2640 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2641 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2642 | #ifdef HAVE_WINDOW_SYSTEM | |
2643 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2644 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2645 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
82641697 GM |
2646 | #endif |
2647 | } | |
2648 | ||
2649 | ||
2650 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2651 | ||
2652 | static void | |
2653 | check_lface (lface) | |
2654 | Lisp_Object lface; | |
2655 | { | |
2656 | if (!NILP (lface)) | |
2657 | { | |
2658 | xassert (LFACEP (lface)); | |
2659 | check_lface_attrs (XVECTOR (lface)->contents); | |
2660 | } | |
2661 | } | |
2662 | ||
2663 | #else /* GLYPH_DEBUG == 0 */ | |
2664 | ||
2665 | #define check_lface_attrs(attrs) (void) 0 | |
2666 | #define check_lface(lface) (void) 0 | |
2667 | ||
2668 | #endif /* GLYPH_DEBUG == 0 */ | |
2669 | ||
2670 | ||
c7ae3284 GM |
2671 | /* Resolve face name FACE_NAME. If FACE_NAME Is a string, intern it |
2672 | to make it a symvol. If FACE_NAME is an alias for another face, | |
2673 | return that face's name. */ | |
2674 | ||
2675 | static Lisp_Object | |
2676 | resolve_face_name (face_name) | |
2677 | Lisp_Object face_name; | |
2678 | { | |
2679 | Lisp_Object aliased; | |
2680 | ||
2681 | if (STRINGP (face_name)) | |
2682 | face_name = intern (XSTRING (face_name)->data); | |
2683 | ||
2684 | for (;;) | |
2685 | { | |
2686 | aliased = Fget (face_name, Qface_alias); | |
2687 | if (NILP (aliased)) | |
2688 | break; | |
2689 | else | |
2690 | face_name = aliased; | |
2691 | } | |
2692 | ||
2693 | return face_name; | |
2694 | } | |
2695 | ||
2696 | ||
82641697 GM |
2697 | /* Return the face definition of FACE_NAME on frame F. F null means |
2698 | return the global definition. FACE_NAME may be a string or a | |
2699 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2700 | text properties; ediff uses that). If FACE_NAME is an alias for |
2701 | another face, return that face's definition. If SIGNAL_P is | |
2702 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2703 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2704 | name. */ | |
82641697 GM |
2705 | |
2706 | static INLINE Lisp_Object | |
2707 | lface_from_face_name (f, face_name, signal_p) | |
2708 | struct frame *f; | |
2709 | Lisp_Object face_name; | |
2710 | int signal_p; | |
2711 | { | |
c7ae3284 | 2712 | Lisp_Object lface; |
82641697 | 2713 | |
c7ae3284 | 2714 | face_name = resolve_face_name (face_name); |
92610620 | 2715 | |
82641697 GM |
2716 | if (f) |
2717 | lface = assq_no_quit (face_name, f->face_alist); | |
2718 | else | |
2719 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2720 | ||
2721 | if (CONSP (lface)) | |
2722 | lface = XCDR (lface); | |
2723 | else if (signal_p) | |
2724 | signal_error ("Invalid face", face_name); | |
2725 | ||
2726 | check_lface (lface); | |
2727 | return lface; | |
2728 | } | |
2729 | ||
2730 | ||
2731 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2732 | frame F. Store the resulting attributes in ATTRS which must point | |
2733 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2734 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2735 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2736 | ||
2737 | static INLINE int | |
2738 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2739 | struct frame *f; | |
2740 | Lisp_Object face_name; | |
2741 | Lisp_Object *attrs; | |
2742 | int signal_p; | |
2743 | { | |
2744 | Lisp_Object lface; | |
2745 | int success_p; | |
2746 | ||
2747 | lface = lface_from_face_name (f, face_name, signal_p); | |
2748 | if (!NILP (lface)) | |
2749 | { | |
2750 | bcopy (XVECTOR (lface)->contents, attrs, | |
2751 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2752 | success_p = 1; | |
2753 | } | |
2754 | else | |
2755 | success_p = 0; | |
2756 | ||
2757 | return success_p; | |
2758 | } | |
2759 | ||
2760 | ||
2761 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2762 | specified, i.e. are non-nil. */ | |
2763 | ||
2764 | static int | |
2765 | lface_fully_specified_p (attrs) | |
2766 | Lisp_Object *attrs; | |
2767 | { | |
2768 | int i; | |
2769 | ||
2770 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2771 | if (UNSPECIFIEDP (attrs[i])) | |
2772 | break; | |
2773 | ||
2774 | return i == LFACE_VECTOR_SIZE; | |
2775 | } | |
2776 | ||
2777 | ||
2778 | #ifdef HAVE_X_WINDOWS | |
2779 | ||
2780 | /* Set font-related attributes of Lisp face LFACE from XLFD font name | |
2781 | FONT_NAME. If FORCE_P is zero, set only unspecified attributes of | |
3221576b GM |
2782 | LFACE. MAY_FAIL_P non-zero means return 0 if FONT_NAME isn't a |
2783 | valid font name; otherwise this function tries to use a reasonable | |
2784 | default font. | |
2785 | ||
2786 | Ignore fields of FONT_NAME containing wildcards. Value is zero if | |
2787 | not successful because FONT_NAME was not in a valid format and | |
2788 | MAY_FAIL_P was non-zero. A valid format is one that is suitable | |
2789 | for split_font_name, see the comment there. */ | |
82641697 GM |
2790 | |
2791 | static int | |
397e4fae | 2792 | set_lface_from_font_name (f, lface, font_name, force_p, may_fail_p) |
82641697 GM |
2793 | struct frame *f; |
2794 | Lisp_Object lface; | |
2795 | char *font_name; | |
3221576b | 2796 | int force_p, may_fail_p; |
82641697 GM |
2797 | { |
2798 | struct font_name font; | |
2799 | char *buffer; | |
2800 | int pt; | |
2801 | int free_font_name_p = 0; | |
3221576b | 2802 | int have_font_p = 0; |
82641697 GM |
2803 | |
2804 | /* If FONT_NAME contains wildcards, use the first matching font. */ | |
2805 | if (index (font_name, '*') || index (font_name, '?')) | |
2806 | { | |
3221576b GM |
2807 | if (first_font_matching (f, font_name, &font)) |
2808 | free_font_name_p = have_font_p = 1; | |
82641697 GM |
2809 | } |
2810 | else | |
2811 | { | |
2812 | font.name = STRDUPA (font_name); | |
18df9369 GM |
2813 | if (split_font_name (f, &font, 1)) |
2814 | have_font_p = 1; | |
2815 | else | |
82641697 GM |
2816 | { |
2817 | /* The font name may be something like `6x13'. Make | |
2818 | sure we use the full name. */ | |
2819 | struct font_info *font_info; | |
2820 | ||
2821 | BLOCK_INPUT; | |
2822 | font_info = fs_load_font (f, FRAME_X_FONT_TABLE (f), | |
2823 | CHARSET_ASCII, font_name, -1); | |
3221576b GM |
2824 | if (font_info) |
2825 | { | |
2826 | font.name = STRDUPA (font_info->full_name); | |
2827 | split_font_name (f, &font, 1); | |
2828 | have_font_p = 1; | |
2829 | } | |
18df9369 | 2830 | UNBLOCK_INPUT; |
82641697 | 2831 | } |
397e4fae | 2832 | } |
82641697 | 2833 | |
3221576b GM |
2834 | /* If FONT_NAME is completely bogus try to use something reasonable |
2835 | if this function must succeed. Otherwise, give up. */ | |
2836 | if (!have_font_p) | |
2837 | { | |
2838 | if (may_fail_p) | |
2839 | return 0; | |
2840 | else if (first_font_matching (f, "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1", | |
2841 | &font) | |
2842 | || first_font_matching (f, "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1", | |
2843 | &font) | |
2844 | || first_font_matching (f, "-*-*-medium-r-normal-*-*-140-*-*-c-*-iso8859-1", | |
2845 | &font) | |
2846 | || first_font_matching (f, "-*-*-medium-r-*-*-*-*-*-*-c-*-iso8859-1", | |
2847 | &font) | |
2848 | || first_font_matching (f, "-*-fixed-*-*-*-*-*-140-*-*-c-*-iso8859-1", | |
2849 | &font) | |
2850 | || first_font_matching (f, "fixed", &font)) | |
2851 | free_font_name_p = 1; | |
2852 | else | |
2853 | abort (); | |
2854 | } | |
2855 | ||
2856 | ||
82641697 GM |
2857 | /* Set attributes only if unspecified, otherwise face defaults for |
2858 | new frames would never take effect. */ | |
2859 | ||
2860 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2861 | { | |
2862 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
2863 | + strlen (font.fields[XLFD_FOUNDRY]) | |
2864 | + 2); | |
2865 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
2866 | font.fields[XLFD_FAMILY]); | |
2867 | LFACE_FAMILY (lface) = build_string (buffer); | |
2868 | } | |
2869 | ||
2870 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2871 | { | |
2872 | pt = xlfd_point_size (f, &font); | |
2873 | xassert (pt > 0); | |
2874 | LFACE_HEIGHT (lface) = make_number (pt); | |
2875 | } | |
2876 | ||
2877 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
2878 | LFACE_SWIDTH (lface) = xlfd_symbolic_swidth (&font); | |
2879 | ||
2880 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
2881 | LFACE_WEIGHT (lface) = xlfd_symbolic_weight (&font); | |
2882 | ||
2883 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
2884 | LFACE_SLANT (lface) = xlfd_symbolic_slant (&font); | |
2885 | ||
2886 | if (free_font_name_p) | |
2887 | xfree (font.name); | |
2888 | ||
2889 | return 1; | |
2890 | } | |
2891 | ||
2892 | #endif /* HAVE_X_WINDOWS */ | |
2893 | ||
2894 | ||
2895 | /* Merge two Lisp face attribute vectors FROM and TO and store the | |
2896 | resulting attributes in TO. Every non-nil attribute of FROM | |
2897 | overrides the corresponding attribute of TO. */ | |
2898 | ||
2899 | static INLINE void | |
2900 | merge_face_vectors (from, to) | |
2901 | Lisp_Object *from, *to; | |
2902 | { | |
2903 | int i; | |
2904 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2905 | if (!UNSPECIFIEDP (from[i])) | |
2906 | to[i] = from[i]; | |
2907 | } | |
2908 | ||
2909 | ||
2910 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
2911 | is a face property, determine the resulting face attributes on | |
2912 | frame F, and store them in TO. PROP may be a single face | |
2913 | specification or a list of such specifications. Each face | |
2914 | specification can be | |
2915 | ||
2916 | 1. A symbol or string naming a Lisp face. | |
2917 | ||
2918 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
2919 | KEYWORD is a face attribute name, and value is an appropriate value | |
2920 | for that attribute. | |
2921 | ||
2922 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
2923 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
2924 | for compatibility with 20.2. | |
2925 | ||
2926 | Face specifications earlier in lists take precedence over later | |
2927 | specifications. */ | |
2928 | ||
2929 | static void | |
2930 | merge_face_vector_with_property (f, to, prop) | |
2931 | struct frame *f; | |
2932 | Lisp_Object *to; | |
2933 | Lisp_Object prop; | |
2934 | { | |
2935 | if (CONSP (prop)) | |
2936 | { | |
2937 | Lisp_Object first = XCAR (prop); | |
2938 | ||
2939 | if (EQ (first, Qforeground_color) | |
2940 | || EQ (first, Qbackground_color)) | |
2941 | { | |
2942 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
2943 | . COLOR). COLOR must be a string. */ | |
2944 | Lisp_Object color_name = XCDR (prop); | |
2945 | Lisp_Object color = first; | |
2946 | ||
2947 | if (STRINGP (color_name)) | |
2948 | { | |
2949 | if (EQ (color, Qforeground_color)) | |
2950 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
2951 | else | |
2952 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
2953 | } | |
2954 | else | |
1b8f7fbc | 2955 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
2956 | } |
2957 | else if (SYMBOLP (first) | |
2958 | && *XSYMBOL (first)->name->data == ':') | |
2959 | { | |
2960 | /* Assume this is the property list form. */ | |
2961 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
2962 | { | |
2963 | Lisp_Object keyword = XCAR (prop); | |
2964 | Lisp_Object value = XCAR (XCDR (prop)); | |
2965 | ||
2966 | if (EQ (keyword, QCfamily)) | |
2967 | { | |
2968 | if (STRINGP (value)) | |
2969 | to[LFACE_FAMILY_INDEX] = value; | |
2970 | else | |
1b8f7fbc | 2971 | add_to_log ("Illegal face font family", value, Qnil); |
82641697 GM |
2972 | } |
2973 | else if (EQ (keyword, QCheight)) | |
2974 | { | |
2975 | if (INTEGERP (value)) | |
2976 | to[LFACE_HEIGHT_INDEX] = value; | |
2977 | else | |
1b8f7fbc | 2978 | add_to_log ("Illegal face font height", value, Qnil); |
82641697 GM |
2979 | } |
2980 | else if (EQ (keyword, QCweight)) | |
2981 | { | |
2982 | if (SYMBOLP (value) | |
2983 | && face_numeric_weight (value) >= 0) | |
2984 | to[LFACE_WEIGHT_INDEX] = value; | |
2985 | else | |
1b8f7fbc | 2986 | add_to_log ("Illegal face weight", value, Qnil); |
82641697 GM |
2987 | } |
2988 | else if (EQ (keyword, QCslant)) | |
2989 | { | |
2990 | if (SYMBOLP (value) | |
2991 | && face_numeric_slant (value) >= 0) | |
2992 | to[LFACE_SLANT_INDEX] = value; | |
2993 | else | |
1b8f7fbc | 2994 | add_to_log ("Illegal face slant", value, Qnil); |
82641697 GM |
2995 | } |
2996 | else if (EQ (keyword, QCunderline)) | |
2997 | { | |
2998 | if (EQ (value, Qt) | |
2999 | || NILP (value) | |
3000 | || STRINGP (value)) | |
3001 | to[LFACE_UNDERLINE_INDEX] = value; | |
3002 | else | |
1b8f7fbc | 3003 | add_to_log ("Illegal face underline", value, Qnil); |
82641697 GM |
3004 | } |
3005 | else if (EQ (keyword, QCoverline)) | |
3006 | { | |
3007 | if (EQ (value, Qt) | |
3008 | || NILP (value) | |
3009 | || STRINGP (value)) | |
3010 | to[LFACE_OVERLINE_INDEX] = value; | |
3011 | else | |
1b8f7fbc | 3012 | add_to_log ("Illegal face overline", value, Qnil); |
82641697 GM |
3013 | } |
3014 | else if (EQ (keyword, QCstrike_through)) | |
3015 | { | |
3016 | if (EQ (value, Qt) | |
3017 | || NILP (value) | |
3018 | || STRINGP (value)) | |
3019 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3020 | else | |
1b8f7fbc | 3021 | add_to_log ("Illegal face strike-through", value, Qnil); |
82641697 GM |
3022 | } |
3023 | else if (EQ (keyword, QCbox)) | |
3024 | { | |
3025 | if (EQ (value, Qt)) | |
3026 | value = make_number (1); | |
3027 | if (INTEGERP (value) | |
3028 | || STRINGP (value) | |
3029 | || CONSP (value) | |
3030 | || NILP (value)) | |
3031 | to[LFACE_BOX_INDEX] = value; | |
3032 | else | |
1b8f7fbc | 3033 | add_to_log ("Illegal face box", value, Qnil); |
82641697 GM |
3034 | } |
3035 | else if (EQ (keyword, QCinverse_video) | |
3036 | || EQ (keyword, QCreverse_video)) | |
3037 | { | |
3038 | if (EQ (value, Qt) || NILP (value)) | |
3039 | to[LFACE_INVERSE_INDEX] = value; | |
3040 | else | |
1b8f7fbc | 3041 | add_to_log ("Illegal face inverse-video", value, Qnil); |
82641697 GM |
3042 | } |
3043 | else if (EQ (keyword, QCforeground)) | |
3044 | { | |
3045 | if (STRINGP (value)) | |
3046 | to[LFACE_FOREGROUND_INDEX] = value; | |
3047 | else | |
1b8f7fbc | 3048 | add_to_log ("Illegal face foreground", value, Qnil); |
82641697 GM |
3049 | } |
3050 | else if (EQ (keyword, QCbackground)) | |
3051 | { | |
3052 | if (STRINGP (value)) | |
3053 | to[LFACE_BACKGROUND_INDEX] = value; | |
3054 | else | |
1b8f7fbc | 3055 | add_to_log ("Illegal face background", value, Qnil); |
82641697 GM |
3056 | } |
3057 | else if (EQ (keyword, QCstipple)) | |
3058 | { | |
3059 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3060 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3061 | if (!NILP (pixmap_p)) |
3062 | to[LFACE_STIPPLE_INDEX] = value; | |
3063 | else | |
1b8f7fbc | 3064 | add_to_log ("Illegal face stipple", value, Qnil); |
82641697 GM |
3065 | #endif |
3066 | } | |
3067 | else if (EQ (keyword, QCwidth)) | |
3068 | { | |
3069 | if (SYMBOLP (value) | |
3070 | && face_numeric_swidth (value) >= 0) | |
3071 | to[LFACE_SWIDTH_INDEX] = value; | |
3072 | else | |
1b8f7fbc | 3073 | add_to_log ("Illegal face width", value, Qnil); |
82641697 GM |
3074 | } |
3075 | else | |
1b8f7fbc | 3076 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3077 | keyword, Qnil); |
82641697 GM |
3078 | |
3079 | prop = XCDR (XCDR (prop)); | |
3080 | } | |
3081 | } | |
3082 | else | |
3083 | { | |
3084 | /* This is a list of face specs. Specifications at the | |
3085 | beginning of the list take precedence over later | |
3086 | specifications, so we have to merge starting with the | |
3087 | last specification. */ | |
3088 | Lisp_Object next = XCDR (prop); | |
3089 | if (!NILP (next)) | |
3090 | merge_face_vector_with_property (f, to, next); | |
3091 | merge_face_vector_with_property (f, to, first); | |
3092 | } | |
3093 | } | |
3094 | else | |
3095 | { | |
3096 | /* PROP ought to be a face name. */ | |
3097 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3098 | if (NILP (lface)) | |
1b8f7fbc | 3099 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 GM |
3100 | else |
3101 | merge_face_vectors (XVECTOR (lface)->contents, to); | |
3102 | } | |
3103 | } | |
3104 | ||
3105 | ||
3106 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3107 | Sinternal_make_lisp_face, 1, 2, 0, | |
3108 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3109 | If FACE was not known as a face before, create a new one.\n\ | |
3110 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3111 | for that frame. Otherwise operate on the global face definition.\n\ | |
3112 | Value is a vector of face attributes.") | |
3113 | (face, frame) | |
3114 | Lisp_Object face, frame; | |
3115 | { | |
3116 | Lisp_Object global_lface, lface; | |
3117 | struct frame *f; | |
3118 | int i; | |
3119 | ||
3120 | CHECK_SYMBOL (face, 0); | |
3121 | global_lface = lface_from_face_name (NULL, face, 0); | |
3122 | ||
3123 | if (!NILP (frame)) | |
3124 | { | |
3125 | CHECK_LIVE_FRAME (frame, 1); | |
3126 | f = XFRAME (frame); | |
3127 | lface = lface_from_face_name (f, face, 0); | |
3128 | } | |
3129 | else | |
3130 | f = NULL, lface = Qnil; | |
3131 | ||
3132 | /* Add a global definition if there is none. */ | |
3133 | if (NILP (global_lface)) | |
3134 | { | |
3135 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3136 | Qunspecified); | |
3137 | XVECTOR (global_lface)->contents[0] = Qface; | |
3138 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), | |
3139 | Vface_new_frame_defaults); | |
3140 | ||
3141 | /* Assign the new Lisp face a unique ID. The mapping from Lisp | |
3142 | face id to Lisp face is given by the vector lface_id_to_name. | |
3143 | The mapping from Lisp face to Lisp face id is given by the | |
3144 | property `face' of the Lisp face name. */ | |
3145 | if (next_lface_id == lface_id_to_name_size) | |
3146 | { | |
3147 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3148 | int sz = new_size * sizeof *lface_id_to_name; | |
3149 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3150 | lface_id_to_name_size = new_size; | |
3151 | } | |
3152 | ||
3153 | lface_id_to_name[next_lface_id] = face; | |
3154 | Fput (face, Qface, make_number (next_lface_id)); | |
3155 | ++next_lface_id; | |
3156 | } | |
3157 | else if (f == NULL) | |
3158 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3159 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
3160 | ||
3161 | /* Add a frame-local definition. */ | |
3162 | if (f) | |
3163 | { | |
3164 | if (NILP (lface)) | |
3165 | { | |
3166 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3167 | Qunspecified); | |
3168 | XVECTOR (lface)->contents[0] = Qface; | |
3169 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3170 | } | |
3171 | else | |
3172 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3173 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3174 | } | |
3175 | else | |
3176 | lface = global_lface; | |
3177 | ||
3178 | xassert (LFACEP (lface)); | |
3179 | check_lface (lface); | |
3180 | return lface; | |
3181 | } | |
3182 | ||
3183 | ||
3184 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3185 | Sinternal_lisp_face_p, 1, 2, 0, | |
3186 | "Return non-nil if FACE names a face.\n\ | |
3187 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3188 | existence of a frame-local face with name FACE on that frame.\n\ | |
3189 | Otherwise check for the existence of a global face.") | |
3190 | (face, frame) | |
3191 | Lisp_Object face, frame; | |
3192 | { | |
3193 | Lisp_Object lface; | |
3194 | ||
3195 | if (!NILP (frame)) | |
3196 | { | |
3197 | CHECK_LIVE_FRAME (frame, 1); | |
3198 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3199 | } | |
3200 | else | |
3201 | lface = lface_from_face_name (NULL, face, 0); | |
3202 | ||
3203 | return lface; | |
3204 | } | |
3205 | ||
3206 | ||
3207 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3208 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3209 | "Copy face FROM to TO.\n\ | |
3210 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3211 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3212 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3213 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3214 | \n\ | |
3215 | Value is TO.") | |
3216 | (from, to, frame, new_frame) | |
3217 | Lisp_Object from, to, frame, new_frame; | |
3218 | { | |
3219 | Lisp_Object lface, copy; | |
3220 | ||
3221 | CHECK_SYMBOL (from, 0); | |
3222 | CHECK_SYMBOL (to, 1); | |
3223 | if (NILP (new_frame)) | |
3224 | new_frame = frame; | |
3225 | ||
3226 | if (EQ (frame, Qt)) | |
3227 | { | |
3228 | /* Copy global definition of FROM. We don't make copies of | |
3229 | strings etc. because 20.2 didn't do it either. */ | |
3230 | lface = lface_from_face_name (NULL, from, 1); | |
3231 | copy = Finternal_make_lisp_face (to, Qnil); | |
3232 | } | |
3233 | else | |
3234 | { | |
3235 | /* Copy frame-local definition of FROM. */ | |
3236 | CHECK_LIVE_FRAME (frame, 2); | |
3237 | CHECK_LIVE_FRAME (new_frame, 3); | |
3238 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3239 | copy = Finternal_make_lisp_face (to, new_frame); | |
3240 | } | |
3241 | ||
3242 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, | |
3243 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
3244 | ||
3245 | return to; | |
3246 | } | |
3247 | ||
3248 | ||
3249 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3250 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3251 | "Set attribute ATTR of FACE to VALUE.\n\ | |
3252 | If optional argument FRAME is given, set the face attribute of face FACE\n\ | |
3253 | on that frame. If FRAME is t, set the attribute of the default for face\n\ | |
3254 | FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ | |
3255 | frame.") | |
3256 | (face, attr, value, frame) | |
3257 | Lisp_Object face, attr, value, frame; | |
3258 | { | |
3259 | Lisp_Object lface; | |
3260 | Lisp_Object old_value = Qnil; | |
3261 | int font_related_attr_p = 0; | |
3262 | ||
3263 | CHECK_SYMBOL (face, 0); | |
3264 | CHECK_SYMBOL (attr, 1); | |
3265 | ||
c7ae3284 GM |
3266 | face = resolve_face_name (face); |
3267 | ||
82641697 GM |
3268 | /* Set lface to the Lisp attribute vector of FACE. */ |
3269 | if (EQ (frame, Qt)) | |
3270 | lface = lface_from_face_name (NULL, face, 1); | |
3271 | else | |
3272 | { | |
3273 | if (NILP (frame)) | |
c0617987 | 3274 | frame = selected_frame; |
82641697 GM |
3275 | |
3276 | CHECK_LIVE_FRAME (frame, 3); | |
3277 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3278 | ||
3279 | /* If a frame-local face doesn't exist yet, create one. */ | |
3280 | if (NILP (lface)) | |
3281 | lface = Finternal_make_lisp_face (face, frame); | |
3282 | } | |
3283 | ||
3284 | if (EQ (attr, QCfamily)) | |
3285 | { | |
3286 | if (!UNSPECIFIEDP (value)) | |
3287 | { | |
3288 | CHECK_STRING (value, 3); | |
3289 | if (XSTRING (value)->size == 0) | |
3290 | signal_error ("Invalid face family", value); | |
3291 | } | |
3292 | old_value = LFACE_FAMILY (lface); | |
3293 | LFACE_FAMILY (lface) = value; | |
3294 | font_related_attr_p = 1; | |
3295 | } | |
3296 | else if (EQ (attr, QCheight)) | |
3297 | { | |
3298 | if (!UNSPECIFIEDP (value)) | |
3299 | { | |
3300 | CHECK_NUMBER (value, 3); | |
3301 | if (XINT (value) <= 0) | |
3302 | signal_error ("Invalid face height", value); | |
3303 | } | |
3304 | old_value = LFACE_HEIGHT (lface); | |
3305 | LFACE_HEIGHT (lface) = value; | |
3306 | font_related_attr_p = 1; | |
3307 | } | |
3308 | else if (EQ (attr, QCweight)) | |
3309 | { | |
3310 | if (!UNSPECIFIEDP (value)) | |
3311 | { | |
3312 | CHECK_SYMBOL (value, 3); | |
3313 | if (face_numeric_weight (value) < 0) | |
3314 | signal_error ("Invalid face weight", value); | |
3315 | } | |
3316 | old_value = LFACE_WEIGHT (lface); | |
3317 | LFACE_WEIGHT (lface) = value; | |
3318 | font_related_attr_p = 1; | |
3319 | } | |
3320 | else if (EQ (attr, QCslant)) | |
3321 | { | |
3322 | if (!UNSPECIFIEDP (value)) | |
3323 | { | |
3324 | CHECK_SYMBOL (value, 3); | |
3325 | if (face_numeric_slant (value) < 0) | |
3326 | signal_error ("Invalid face slant", value); | |
3327 | } | |
3328 | old_value = LFACE_SLANT (lface); | |
3329 | LFACE_SLANT (lface) = value; | |
3330 | font_related_attr_p = 1; | |
3331 | } | |
3332 | else if (EQ (attr, QCunderline)) | |
3333 | { | |
3334 | if (!UNSPECIFIEDP (value)) | |
3335 | if ((SYMBOLP (value) | |
3336 | && !EQ (value, Qt) | |
3337 | && !EQ (value, Qnil)) | |
3338 | /* Underline color. */ | |
3339 | || (STRINGP (value) | |
3340 | && XSTRING (value)->size == 0)) | |
3341 | signal_error ("Invalid face underline", value); | |
3342 | ||
3343 | old_value = LFACE_UNDERLINE (lface); | |
3344 | LFACE_UNDERLINE (lface) = value; | |
3345 | } | |
3346 | else if (EQ (attr, QCoverline)) | |
3347 | { | |
3348 | if (!UNSPECIFIEDP (value)) | |
3349 | if ((SYMBOLP (value) | |
3350 | && !EQ (value, Qt) | |
3351 | && !EQ (value, Qnil)) | |
3352 | /* Overline color. */ | |
3353 | || (STRINGP (value) | |
3354 | && XSTRING (value)->size == 0)) | |
3355 | signal_error ("Invalid face overline", value); | |
3356 | ||
3357 | old_value = LFACE_OVERLINE (lface); | |
3358 | LFACE_OVERLINE (lface) = value; | |
3359 | } | |
3360 | else if (EQ (attr, QCstrike_through)) | |
3361 | { | |
3362 | if (!UNSPECIFIEDP (value)) | |
3363 | if ((SYMBOLP (value) | |
3364 | && !EQ (value, Qt) | |
3365 | && !EQ (value, Qnil)) | |
3366 | /* Strike-through color. */ | |
3367 | || (STRINGP (value) | |
3368 | && XSTRING (value)->size == 0)) | |
3369 | signal_error ("Invalid face strike-through", value); | |
3370 | ||
3371 | old_value = LFACE_STRIKE_THROUGH (lface); | |
3372 | LFACE_STRIKE_THROUGH (lface) = value; | |
3373 | } | |
3374 | else if (EQ (attr, QCbox)) | |
3375 | { | |
3376 | int valid_p; | |
3377 | ||
3378 | /* Allow t meaning a simple box of width 1 in foreground color | |
3379 | of the face. */ | |
3380 | if (EQ (value, Qt)) | |
3381 | value = make_number (1); | |
3382 | ||
3383 | if (UNSPECIFIEDP (value)) | |
3384 | valid_p = 1; | |
3385 | else if (NILP (value)) | |
3386 | valid_p = 1; | |
3387 | else if (INTEGERP (value)) | |
3388 | valid_p = XINT (value) > 0; | |
3389 | else if (STRINGP (value)) | |
3390 | valid_p = XSTRING (value)->size > 0; | |
3391 | else if (CONSP (value)) | |
3392 | { | |
3393 | Lisp_Object tem; | |
3394 | ||
3395 | tem = value; | |
3396 | while (CONSP (tem)) | |
3397 | { | |
3398 | Lisp_Object k, v; | |
3399 | ||
3400 | k = XCAR (tem); | |
3401 | tem = XCDR (tem); | |
3402 | if (!CONSP (tem)) | |
3403 | break; | |
3404 | v = XCAR (tem); | |
3405 | tem = XCDR (tem); | |
3406 | ||
3407 | if (EQ (k, QCline_width)) | |
3408 | { | |
3409 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3410 | break; | |
3411 | } | |
3412 | else if (EQ (k, QCcolor)) | |
3413 | { | |
3414 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3415 | break; | |
3416 | } | |
3417 | else if (EQ (k, QCstyle)) | |
3418 | { | |
3419 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3420 | break; | |
3421 | } | |
3422 | else | |
3423 | break; | |
3424 | } | |
3425 | ||
3426 | valid_p = NILP (tem); | |
3427 | } | |
3428 | else | |
3429 | valid_p = 0; | |
3430 | ||
3431 | if (!valid_p) | |
3432 | signal_error ("Invalid face box", value); | |
3433 | ||
3434 | old_value = LFACE_BOX (lface); | |
3435 | LFACE_BOX (lface) = value; | |
3436 | } | |
3437 | else if (EQ (attr, QCinverse_video) | |
3438 | || EQ (attr, QCreverse_video)) | |
3439 | { | |
3440 | if (!UNSPECIFIEDP (value)) | |
3441 | { | |
3442 | CHECK_SYMBOL (value, 3); | |
3443 | if (!EQ (value, Qt) && !NILP (value)) | |
3444 | signal_error ("Invalid inverse-video face attribute value", value); | |
3445 | } | |
3446 | old_value = LFACE_INVERSE (lface); | |
3447 | LFACE_INVERSE (lface) = value; | |
3448 | } | |
3449 | else if (EQ (attr, QCforeground)) | |
3450 | { | |
ef917393 | 3451 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3452 | { |
3453 | /* Don't check for valid color names here because it depends | |
3454 | on the frame (display) whether the color will be valid | |
3455 | when the face is realized. */ | |
3456 | CHECK_STRING (value, 3); | |
3457 | if (XSTRING (value)->size == 0) | |
3458 | signal_error ("Empty foreground color value", value); | |
3459 | } | |
3460 | old_value = LFACE_FOREGROUND (lface); | |
3461 | LFACE_FOREGROUND (lface) = value; | |
3462 | } | |
3463 | else if (EQ (attr, QCbackground)) | |
3464 | { | |
ef917393 | 3465 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3466 | { |
3467 | /* Don't check for valid color names here because it depends | |
3468 | on the frame (display) whether the color will be valid | |
3469 | when the face is realized. */ | |
3470 | CHECK_STRING (value, 3); | |
3471 | if (XSTRING (value)->size == 0) | |
3472 | signal_error ("Empty background color value", value); | |
3473 | } | |
3474 | old_value = LFACE_BACKGROUND (lface); | |
3475 | LFACE_BACKGROUND (lface) = value; | |
3476 | } | |
3477 | else if (EQ (attr, QCstipple)) | |
3478 | { | |
3479 | #ifdef HAVE_X_WINDOWS | |
3480 | if (!UNSPECIFIEDP (value) | |
3481 | && !NILP (value) | |
fef04523 | 3482 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3483 | signal_error ("Invalid stipple attribute", value); |
3484 | old_value = LFACE_STIPPLE (lface); | |
3485 | LFACE_STIPPLE (lface) = value; | |
3486 | #endif /* HAVE_X_WINDOWS */ | |
3487 | } | |
3488 | else if (EQ (attr, QCwidth)) | |
3489 | { | |
3490 | if (!UNSPECIFIEDP (value)) | |
3491 | { | |
3492 | CHECK_SYMBOL (value, 3); | |
3493 | if (face_numeric_swidth (value) < 0) | |
3494 | signal_error ("Invalid face width", value); | |
3495 | } | |
3496 | old_value = LFACE_SWIDTH (lface); | |
3497 | LFACE_SWIDTH (lface) = value; | |
3498 | font_related_attr_p = 1; | |
3499 | } | |
3500 | else if (EQ (attr, QCfont)) | |
3501 | { | |
3502 | #ifdef HAVE_X_WINDOWS | |
3503 | /* Set font-related attributes of the Lisp face from an | |
3504 | XLFD font name. */ | |
3505 | struct frame *f; | |
3506 | ||
3507 | CHECK_STRING (value, 3); | |
3508 | if (EQ (frame, Qt)) | |
c0617987 | 3509 | f = SELECTED_FRAME (); |
82641697 GM |
3510 | else |
3511 | f = check_x_frame (frame); | |
3512 | ||
3221576b | 3513 | if (!set_lface_from_font_name (f, lface, XSTRING (value)->data, 1, 1)) |
82641697 GM |
3514 | signal_error ("Invalid font name", value); |
3515 | ||
3516 | font_related_attr_p = 1; | |
3517 | #endif /* HAVE_X_WINDOWS */ | |
3518 | } | |
3519 | else if (EQ (attr, QCbold)) | |
3520 | { | |
3521 | old_value = LFACE_WEIGHT (lface); | |
3522 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3523 | font_related_attr_p = 1; | |
3524 | } | |
3525 | else if (EQ (attr, QCitalic)) | |
3526 | { | |
3527 | old_value = LFACE_SLANT (lface); | |
3528 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3529 | font_related_attr_p = 1; | |
3530 | } | |
3531 | else | |
3532 | signal_error ("Invalid face attribute name", attr); | |
3533 | ||
3534 | /* Changing a named face means that all realized faces depending on | |
3535 | that face are invalid. Since we cannot tell which realized faces | |
3536 | depend on the face, make sure they are all removed. This is done | |
3537 | by incrementing face_change_count. The next call to | |
3538 | init_iterator will then free realized faces. */ | |
3539 | if (!EQ (frame, Qt) | |
3540 | && (EQ (attr, QCfont) | |
3541 | || NILP (Fequal (old_value, value)))) | |
3542 | { | |
3543 | ++face_change_count; | |
3544 | ++windows_or_buffers_changed; | |
3545 | } | |
3546 | ||
3547 | #ifdef HAVE_X_WINDOWS | |
8bd201d6 GM |
3548 | |
3549 | if (!EQ (frame, Qt) | |
3550 | && !UNSPECIFIEDP (value) | |
82641697 | 3551 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3552 | { |
3553 | Lisp_Object param; | |
3554 | ||
3555 | param = Qnil; | |
3556 | ||
3557 | if (EQ (face, Qdefault)) | |
3558 | { | |
3559 | /* Changed font-related attributes of the `default' face are | |
3560 | reflected in changed `font' frame parameters. */ | |
3561 | if (font_related_attr_p | |
3562 | && lface_fully_specified_p (XVECTOR (lface)->contents)) | |
3563 | set_font_frame_param (frame, lface); | |
3564 | else if (EQ (attr, QCforeground)) | |
3565 | param = Qforeground_color; | |
3566 | else if (EQ (attr, QCbackground)) | |
3567 | param = Qbackground_color; | |
3568 | } | |
3569 | else if (EQ (face, Qscroll_bar)) | |
3570 | { | |
3571 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3572 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3573 | if (EQ (attr, QCforeground)) | |
3574 | param = Qscroll_bar_foreground; | |
3575 | else if (EQ (attr, QCbackground)) | |
3576 | param = Qscroll_bar_background; | |
3577 | } | |
3578 | else if (EQ (face, Qborder)) | |
3579 | { | |
3580 | /* Changing background color of `border' sets frame parameter | |
3581 | `border-color'. */ | |
3582 | if (EQ (attr, QCbackground)) | |
3583 | param = Qborder_color; | |
3584 | } | |
3585 | else if (EQ (face, Qcursor)) | |
3586 | { | |
3587 | /* Changing background color of `cursor' sets frame parameter | |
3588 | `cursor-color'. */ | |
3589 | if (EQ (attr, QCbackground)) | |
3590 | param = Qcursor_color; | |
3591 | } | |
3592 | else if (EQ (face, Qmouse)) | |
3593 | { | |
3594 | /* Changing background color of `mouse' sets frame parameter | |
3595 | `mouse-color'. */ | |
3596 | if (EQ (attr, QCbackground)) | |
3597 | param = Qmouse_color; | |
3598 | } | |
3599 | ||
3600 | if (SYMBOLP (param)) | |
3601 | Fmodify_frame_parameters (frame, Fcons (Fcons (param, value), Qnil)); | |
3602 | } | |
82641697 GM |
3603 | |
3604 | #endif /* HAVE_X_WINDOWS */ | |
3605 | ||
3606 | return face; | |
3607 | } | |
3608 | ||
3609 | ||
3610 | #ifdef HAVE_X_WINDOWS | |
3611 | ||
3612 | /* Set the `font' frame parameter of FRAME according to `default' face | |
3613 | attributes LFACE. */ | |
3614 | ||
3615 | static void | |
3616 | set_font_frame_param (frame, lface) | |
3617 | Lisp_Object frame, lface; | |
3618 | { | |
3619 | struct frame *f = XFRAME (frame); | |
3620 | Lisp_Object frame_font; | |
3621 | int fontset; | |
3622 | char *font; | |
3623 | ||
3624 | /* Get FRAME's font parameter. */ | |
3625 | frame_font = Fassq (Qfont, f->param_alist); | |
3626 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
3627 | frame_font = XCDR (frame_font); | |
3628 | ||
3629 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
3630 | if (fontset >= 0) | |
3631 | { | |
3632 | /* Frame parameter is a fontset name. Modify the fontset so | |
3633 | that all its fonts reflect face attributes LFACE. */ | |
3634 | int charset; | |
3635 | struct fontset_info *fontset_info; | |
3636 | ||
3637 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
3638 | ||
3639 | for (charset = 0; charset < MAX_CHARSET; ++charset) | |
3640 | if (fontset_info->fontname[charset]) | |
3641 | { | |
3642 | font = choose_face_fontset_font (f, XVECTOR (lface)->contents, | |
3643 | fontset, charset); | |
3644 | Fset_fontset_font (frame_font, CHARSET_SYMBOL (charset), | |
3645 | build_string (font), frame); | |
3646 | xfree (font); | |
3647 | } | |
3648 | } | |
3649 | else | |
3650 | { | |
3651 | /* Frame parameter is an X font name. I believe this can | |
3652 | only happen in unibyte mode. */ | |
3653 | font = choose_face_font (f, XVECTOR (lface)->contents, | |
3654 | -1, Vface_default_registry); | |
3655 | if (font) | |
3656 | { | |
3657 | store_frame_param (f, Qfont, build_string (font)); | |
3658 | xfree (font); | |
3659 | } | |
3660 | } | |
3661 | } | |
3662 | ||
3663 | ||
8bd201d6 GM |
3664 | /* Update the corresponding face when frame parameter PARAM on frame F |
3665 | has been assigned the value NEW_VALUE. */ | |
3666 | ||
3667 | void | |
3668 | update_face_from_frame_parameter (f, param, new_value) | |
3669 | struct frame *f; | |
3670 | Lisp_Object param, new_value; | |
3671 | { | |
3672 | Lisp_Object lface; | |
3673 | ||
3674 | /* If there are no faces yet, give up. This is the case when called | |
3675 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 3676 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
3677 | if (NILP (f->face_alist)) |
3678 | return; | |
3679 | ||
3680 | if (EQ (param, Qforeground_color)) | |
3681 | { | |
3682 | lface = lface_from_face_name (f, Qdefault, 1); | |
3683 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
3684 | ? new_value : Qunspecified); | |
3685 | realize_basic_faces (f); | |
3686 | } | |
3687 | else if (EQ (param, Qbackground_color)) | |
3688 | { | |
92610620 GM |
3689 | Lisp_Object frame; |
3690 | ||
3691 | /* Changing the background color might change the background | |
3692 | mode, so that we have to load new defface specs. Call | |
3693 | frame-update-face-colors to do that. */ | |
3694 | XSETFRAME (frame, f); | |
3695 | call1 (Qframe_update_face_colors, frame); | |
3696 | ||
8bd201d6 GM |
3697 | lface = lface_from_face_name (f, Qdefault, 1); |
3698 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3699 | ? new_value : Qunspecified); | |
3700 | realize_basic_faces (f); | |
3701 | } | |
3702 | if (EQ (param, Qborder_color)) | |
3703 | { | |
3704 | lface = lface_from_face_name (f, Qborder, 1); | |
3705 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3706 | ? new_value : Qunspecified); | |
3707 | } | |
3708 | else if (EQ (param, Qcursor_color)) | |
3709 | { | |
3710 | lface = lface_from_face_name (f, Qcursor, 1); | |
3711 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3712 | ? new_value : Qunspecified); | |
3713 | } | |
3714 | else if (EQ (param, Qmouse_color)) | |
3715 | { | |
3716 | lface = lface_from_face_name (f, Qmouse, 1); | |
3717 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3718 | ? new_value : Qunspecified); | |
3719 | } | |
3720 | } | |
3721 | ||
3722 | ||
82641697 GM |
3723 | /* Get the value of X resource RESOURCE, class CLASS for the display |
3724 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3725 | doesn't take a frame argument. */ | |
3726 | ||
3727 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
3728 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
3729 | (resource, class, frame) | |
3730 | Lisp_Object resource, class, frame; | |
3731 | { | |
3732 | Lisp_Object value; | |
3733 | CHECK_STRING (resource, 0); | |
3734 | CHECK_STRING (class, 1); | |
3735 | CHECK_LIVE_FRAME (frame, 2); | |
3736 | BLOCK_INPUT; | |
3737 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3738 | resource, class, Qnil, Qnil); | |
3739 | UNBLOCK_INPUT; | |
3740 | return value; | |
3741 | } | |
3742 | ||
3743 | ||
3744 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3745 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3746 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3747 | error; if SIGNAL_P is zero, return 0. */ | |
3748 | ||
3749 | static Lisp_Object | |
3750 | face_boolean_x_resource_value (value, signal_p) | |
3751 | Lisp_Object value; | |
3752 | int signal_p; | |
3753 | { | |
3754 | Lisp_Object result = make_number (0); | |
3755 | ||
3756 | xassert (STRINGP (value)); | |
3757 | ||
3758 | if (xstricmp (XSTRING (value)->data, "on") == 0 | |
3759 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
3760 | result = Qt; | |
3761 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
3762 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
3763 | result = Qnil; | |
3764 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3765 | result = Qunspecified; | |
3766 | else if (signal_p) | |
3767 | signal_error ("Invalid face attribute value from X resource", value); | |
3768 | ||
3769 | return result; | |
3770 | } | |
3771 | ||
3772 | ||
3773 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3774 | Finternal_set_lisp_face_attribute_from_resource, | |
3775 | Sinternal_set_lisp_face_attribute_from_resource, | |
3776 | 3, 4, 0, "") | |
3777 | (face, attr, value, frame) | |
3778 | Lisp_Object face, attr, value, frame; | |
3779 | { | |
3780 | CHECK_SYMBOL (face, 0); | |
3781 | CHECK_SYMBOL (attr, 1); | |
3782 | CHECK_STRING (value, 2); | |
3783 | ||
3784 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3785 | value = Qunspecified; | |
3786 | else if (EQ (attr, QCheight)) | |
3787 | { | |
3788 | value = Fstring_to_number (value, make_number (10)); | |
3789 | if (XINT (value) <= 0) | |
3790 | signal_error ("Invalid face height from X resource", value); | |
3791 | } | |
3792 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3793 | value = face_boolean_x_resource_value (value, 1); | |
3794 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
3795 | value = intern (XSTRING (value)->data); | |
3796 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
3797 | value = face_boolean_x_resource_value (value, 1); | |
3798 | else if (EQ (attr, QCunderline) | |
3799 | || EQ (attr, QCoverline) | |
3800 | || EQ (attr, QCstrike_through) | |
3801 | || EQ (attr, QCbox)) | |
3802 | { | |
3803 | Lisp_Object boolean_value; | |
3804 | ||
3805 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3806 | VALUE does NOT specify a color. */ | |
3807 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3808 | if (SYMBOLP (boolean_value)) | |
3809 | value = boolean_value; | |
3810 | } | |
3811 | ||
3812 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3813 | } | |
3814 | ||
3815 | ||
c7ae3284 GM |
3816 | \f |
3817 | /*********************************************************************** | |
3818 | Menu face | |
3819 | ***********************************************************************/ | |
3820 | ||
3821 | #ifdef USE_X_TOOLKIT | |
3822 | ||
3823 | /* Structure used to pass X resources to functions called via | |
3824 | XtApplyToWidgets. */ | |
3825 | ||
3826 | struct x_resources | |
3827 | { | |
3828 | Arg *av; | |
3829 | int ac; | |
3830 | }; | |
3831 | ||
3832 | ||
3833 | #ifdef USE_MOTIF | |
3834 | ||
3835 | static void xm_apply_resources P_ ((Widget, XtPointer)); | |
3836 | static void xm_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
3837 | ||
3838 | ||
3839 | /* Set widget W's X resources from P which points to an x_resources | |
3840 | structure. If W is a cascade button, apply resources to W's | |
3841 | submenu. */ | |
3842 | ||
3843 | static void | |
3844 | xm_apply_resources (w, p) | |
3845 | Widget w; | |
3846 | XtPointer p; | |
3847 | { | |
3848 | Widget submenu = 0; | |
3849 | struct x_resources *res = (struct x_resources *) p; | |
3850 | ||
3851 | XtSetValues (w, res->av, res->ac); | |
3852 | XtVaGetValues (w, XmNsubMenuId, &submenu, NULL); | |
3853 | if (submenu) | |
3854 | { | |
3855 | XtSetValues (submenu, res->av, res->ac); | |
3856 | XtApplyToWidgets (submenu, xm_apply_resources, p); | |
3857 | } | |
3858 | } | |
3859 | ||
3860 | ||
3861 | /* Set X resources of menu-widget WIDGET on frame F from face `menu'. | |
3862 | This is the LessTif/Motif version. As of LessTif 0.88 it has the | |
3863 | following problems: | |
3864 | ||
3865 | 1. Setting the XmNfontList resource leads to an infinite loop | |
3866 | somewhere in LessTif. */ | |
3867 | ||
3868 | static void | |
3869 | xm_set_menu_resources_from_menu_face (f, widget) | |
3870 | struct frame *f; | |
3871 | Widget widget; | |
3872 | { | |
3873 | struct face *face; | |
3874 | Lisp_Object lface; | |
3875 | Arg av[3]; | |
3876 | int ac = 0; | |
3877 | XmFontList fl = 0; | |
3878 | ||
3879 | lface = lface_from_face_name (f, Qmenu, 1); | |
3880 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
3881 | ||
3882 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
3883 | { | |
3884 | XtSetArg (av[ac], XmNforeground, face->foreground); | |
3885 | ++ac; | |
3886 | } | |
3887 | ||
3888 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
3889 | { | |
3890 | XtSetArg (av[ac], XmNbackground, face->background); | |
3891 | ++ac; | |
3892 | } | |
3893 | ||
3894 | /* If any font-related attribute of `menu' is set, set the font. */ | |
3895 | if (face->font | |
3896 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
3897 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
3898 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3899 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
3900 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
3901 | { | |
3902 | #if 0 /* Setting the font leads to an infinite loop somewhere | |
3903 | in LessTif during geometry computation. */ | |
3904 | XmFontListEntry fe; | |
3905 | fe = XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT, face->font); | |
3906 | fl = XmFontListAppendEntry (NULL, fe); | |
3907 | XtSetArg (av[ac], XmNfontList, fl); | |
3908 | ++ac; | |
3909 | #endif | |
3910 | } | |
3911 | ||
3912 | xassert (ac <= sizeof av / sizeof *av); | |
3913 | ||
3914 | if (ac) | |
3915 | { | |
3916 | struct x_resources res; | |
3917 | ||
3918 | XtSetValues (widget, av, ac); | |
3919 | res.av = av, res.ac = ac; | |
3920 | XtApplyToWidgets (widget, xm_apply_resources, &res); | |
3921 | if (fl) | |
3922 | XmFontListFree (fl); | |
3923 | } | |
3924 | } | |
3925 | ||
3926 | ||
3927 | #endif /* USE_MOTIF */ | |
3928 | ||
3929 | #ifdef USE_LUCID | |
3930 | ||
3931 | static void xl_apply_resources P_ ((Widget, XtPointer)); | |
3932 | static void xl_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
3933 | ||
3934 | ||
3935 | /* Set widget W's resources from P which points to an x_resources | |
3936 | structure. */ | |
3937 | ||
3938 | static void | |
3939 | xl_apply_resources (widget, p) | |
3940 | Widget widget; | |
3941 | XtPointer p; | |
3942 | { | |
3943 | struct x_resources *res = (struct x_resources *) p; | |
3944 | XtSetValues (widget, res->av, res->ac); | |
3945 | } | |
3946 | ||
3947 | ||
3948 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. | |
3949 | This is the Lucid version. */ | |
3950 | ||
3951 | static void | |
3952 | xl_set_menu_resources_from_menu_face (f, widget) | |
3953 | struct frame *f; | |
3954 | Widget widget; | |
3955 | { | |
3956 | struct face *face; | |
3957 | Lisp_Object lface; | |
3958 | Arg av[3]; | |
3959 | int ac = 0; | |
3960 | ||
3961 | lface = lface_from_face_name (f, Qmenu, 1); | |
3962 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
3963 | ||
3964 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
3965 | { | |
3966 | XtSetArg (av[ac], XtNforeground, face->foreground); | |
3967 | ++ac; | |
3968 | } | |
3969 | ||
3970 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
3971 | { | |
3972 | XtSetArg (av[ac], XtNbackground, face->background); | |
3973 | ++ac; | |
3974 | } | |
3975 | ||
3976 | if (face->font | |
3977 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
3978 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
3979 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3980 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
3981 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
3982 | { | |
3983 | XtSetArg (av[ac], XtNfont, face->font); | |
3984 | ++ac; | |
3985 | } | |
3986 | ||
3987 | if (ac) | |
3988 | { | |
3989 | struct x_resources res; | |
3990 | ||
3991 | XtSetValues (widget, av, ac); | |
3992 | ||
3993 | /* We must do children here in case we're handling a pop-up menu | |
3994 | in which case WIDGET is a popup shell. XtApplyToWidgets | |
3995 | is a function from lwlib. */ | |
3996 | res.av = av, res.ac = ac; | |
3997 | XtApplyToWidgets (widget, xl_apply_resources, &res); | |
3998 | } | |
3999 | } | |
4000 | ||
4001 | #endif /* USE_LUCID */ | |
4002 | ||
4003 | ||
4004 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */ | |
4005 | ||
4006 | void | |
4007 | x_set_menu_resources_from_menu_face (f, widget) | |
4008 | struct frame *f; | |
4009 | Widget widget; | |
4010 | { | |
15daa944 GM |
4011 | /* Realized faces may have been removed on frame F, e.g. because of |
4012 | face attribute changes. Recompute them, if necessary, since we | |
4013 | will need the `menu' face. */ | |
4014 | if (f->face_cache->used == 0) | |
4015 | recompute_basic_faces (f); | |
4016 | ||
c7ae3284 GM |
4017 | #ifdef USE_LUCID |
4018 | xl_set_menu_resources_from_menu_face (f, widget); | |
4019 | #endif | |
4020 | #ifdef USE_MOTIF | |
4021 | xm_set_menu_resources_from_menu_face (f, widget); | |
4022 | #endif | |
4023 | } | |
4024 | ||
4025 | #endif /* USE_X_TOOLKIT */ | |
4026 | ||
82641697 GM |
4027 | #endif /* HAVE_X_WINDOWS */ |
4028 | ||
4029 | ||
4030 | ||
4031 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4032 | Sinternal_get_lisp_face_attribute, | |
4033 | 2, 3, 0, | |
4034 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
4035 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
4036 | face attribute name, signal an error.\n\ | |
4037 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
4038 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
4039 | frames). If FRAME is omitted or nil, use the selected frame.") | |
4040 | (symbol, keyword, frame) | |
4041 | Lisp_Object symbol, keyword, frame; | |
4042 | { | |
4043 | Lisp_Object lface, value = Qnil; | |
4044 | ||
4045 | CHECK_SYMBOL (symbol, 0); | |
4046 | CHECK_SYMBOL (keyword, 1); | |
4047 | ||
4048 | if (EQ (frame, Qt)) | |
4049 | lface = lface_from_face_name (NULL, symbol, 1); | |
4050 | else | |
4051 | { | |
4052 | if (NILP (frame)) | |
c0617987 | 4053 | frame = selected_frame; |
82641697 GM |
4054 | CHECK_LIVE_FRAME (frame, 2); |
4055 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
4056 | } | |
4057 | ||
4058 | if (EQ (keyword, QCfamily)) | |
4059 | value = LFACE_FAMILY (lface); | |
4060 | else if (EQ (keyword, QCheight)) | |
4061 | value = LFACE_HEIGHT (lface); | |
4062 | else if (EQ (keyword, QCweight)) | |
4063 | value = LFACE_WEIGHT (lface); | |
4064 | else if (EQ (keyword, QCslant)) | |
4065 | value = LFACE_SLANT (lface); | |
4066 | else if (EQ (keyword, QCunderline)) | |
4067 | value = LFACE_UNDERLINE (lface); | |
4068 | else if (EQ (keyword, QCoverline)) | |
4069 | value = LFACE_OVERLINE (lface); | |
4070 | else if (EQ (keyword, QCstrike_through)) | |
4071 | value = LFACE_STRIKE_THROUGH (lface); | |
4072 | else if (EQ (keyword, QCbox)) | |
4073 | value = LFACE_BOX (lface); | |
4074 | else if (EQ (keyword, QCinverse_video) | |
4075 | || EQ (keyword, QCreverse_video)) | |
4076 | value = LFACE_INVERSE (lface); | |
4077 | else if (EQ (keyword, QCforeground)) | |
4078 | value = LFACE_FOREGROUND (lface); | |
4079 | else if (EQ (keyword, QCbackground)) | |
4080 | value = LFACE_BACKGROUND (lface); | |
4081 | else if (EQ (keyword, QCstipple)) | |
4082 | value = LFACE_STIPPLE (lface); | |
4083 | else if (EQ (keyword, QCwidth)) | |
4084 | value = LFACE_SWIDTH (lface); | |
4085 | else | |
4086 | signal_error ("Invalid face attribute name", keyword); | |
4087 | ||
4088 | return value; | |
4089 | } | |
4090 | ||
4091 | ||
4092 | DEFUN ("internal-lisp-face-attribute-values", | |
4093 | Finternal_lisp_face_attribute_values, | |
4094 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
4095 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
4096 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
4097 | (attr) | |
4098 | Lisp_Object attr; | |
4099 | { | |
4100 | Lisp_Object result = Qnil; | |
4101 | ||
4102 | CHECK_SYMBOL (attr, 0); | |
4103 | ||
4104 | if (EQ (attr, QCweight) | |
4105 | || EQ (attr, QCslant) | |
4106 | || EQ (attr, QCwidth)) | |
4107 | { | |
4108 | /* Extract permissible symbols from tables. */ | |
4109 | struct table_entry *table; | |
4110 | int i, dim; | |
4111 | ||
4112 | if (EQ (attr, QCweight)) | |
4113 | table = weight_table, dim = DIM (weight_table); | |
4114 | else if (EQ (attr, QCslant)) | |
4115 | table = slant_table, dim = DIM (slant_table); | |
4116 | else | |
4117 | table = swidth_table, dim = DIM (swidth_table); | |
4118 | ||
4119 | for (i = 0; i < dim; ++i) | |
4120 | { | |
4121 | Lisp_Object symbol = *table[i].symbol; | |
4122 | Lisp_Object tail = result; | |
4123 | ||
4124 | while (!NILP (tail) | |
4125 | && !EQ (XCAR (tail), symbol)) | |
4126 | tail = XCDR (tail); | |
4127 | ||
4128 | if (NILP (tail)) | |
4129 | result = Fcons (symbol, result); | |
4130 | } | |
4131 | } | |
4132 | else if (EQ (attr, QCunderline)) | |
4133 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4134 | else if (EQ (attr, QCoverline)) | |
4135 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4136 | else if (EQ (attr, QCstrike_through)) | |
4137 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4138 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4139 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4140 | ||
4141 | return result; | |
4142 | } | |
4143 | ||
4144 | ||
4145 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
4146 | Sinternal_merge_in_global_face, 2, 2, 0, | |
4147 | "Add attributes from frame-default definition of FACE to FACE on FRAME.") | |
4148 | (face, frame) | |
4149 | Lisp_Object face, frame; | |
4150 | { | |
4151 | Lisp_Object global_lface, local_lface; | |
4152 | CHECK_LIVE_FRAME (frame, 1); | |
4153 | global_lface = lface_from_face_name (NULL, face, 1); | |
4154 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4155 | if (NILP (local_lface)) | |
4156 | local_lface = Finternal_make_lisp_face (face, frame); | |
4157 | merge_face_vectors (XVECTOR (global_lface)->contents, | |
4158 | XVECTOR (local_lface)->contents); | |
4159 | return face; | |
4160 | } | |
4161 | ||
4162 | ||
4163 | /* The following function is implemented for compatibility with 20.2. | |
4164 | The function is used in x-resolve-fonts when it is asked to | |
4165 | return fonts with the same size as the font of a face. This is | |
4166 | done in fontset.el. */ | |
4167 | ||
4168 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, | |
4169 | "Return the font name of face FACE, or nil if it is unspecified.\n\ | |
4170 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4171 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4172 | The font default for a face is either nil, or a list\n\ | |
4173 | of the form (bold), (italic) or (bold italic).\n\ | |
4174 | If FRAME is omitted or nil, use the selected frame.") | |
4175 | (face, frame) | |
4176 | Lisp_Object face, frame; | |
4177 | { | |
4178 | if (EQ (frame, Qt)) | |
4179 | { | |
4180 | Lisp_Object result = Qnil; | |
4181 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4182 | ||
4183 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4184 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4185 | result = Fcons (Qbold, result); | |
4186 | ||
4187 | if (!NILP (LFACE_SLANT (lface)) | |
4188 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
4189 | result = Fcons (Qitalic, result); | |
4190 | ||
4191 | return result; | |
4192 | } | |
4193 | else | |
4194 | { | |
4195 | struct frame *f = frame_or_selected_frame (frame, 1); | |
4196 | int face_id = lookup_named_face (f, face, CHARSET_ASCII); | |
4197 | struct face *face = FACE_FROM_ID (f, face_id); | |
4198 | return build_string (face->font_name); | |
4199 | } | |
4200 | } | |
4201 | ||
4202 | ||
4203 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4204 | all attributes are `equal'. Tries to be fast because this function | |
4205 | is called quite often. */ | |
4206 | ||
4207 | static INLINE int | |
4208 | lface_equal_p (v1, v2) | |
4209 | Lisp_Object *v1, *v2; | |
4210 | { | |
4211 | int i, equal_p = 1; | |
4212 | ||
4213 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4214 | { | |
4215 | Lisp_Object a = v1[i]; | |
4216 | Lisp_Object b = v2[i]; | |
4217 | ||
4218 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4219 | and the other is specified. */ | |
4220 | equal_p = XTYPE (a) == XTYPE (b); | |
4221 | if (!equal_p) | |
4222 | break; | |
4223 | ||
4224 | if (!EQ (a, b)) | |
4225 | { | |
4226 | switch (XTYPE (a)) | |
4227 | { | |
4228 | case Lisp_String: | |
4229 | equal_p = (XSTRING (a)->size == XSTRING (b)->size | |
4230 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, | |
4231 | XSTRING (a)->size) == 0); | |
4232 | break; | |
4233 | ||
4234 | case Lisp_Int: | |
4235 | case Lisp_Symbol: | |
4236 | equal_p = 0; | |
4237 | break; | |
4238 | ||
4239 | default: | |
4240 | equal_p = !NILP (Fequal (a, b)); | |
4241 | break; | |
4242 | } | |
4243 | } | |
4244 | } | |
4245 | ||
4246 | return equal_p; | |
4247 | } | |
4248 | ||
4249 | ||
4250 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4251 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
4252 | "True if FACE1 and FACE2 are equal.\n\ | |
4253 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4254 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4255 | If FRAME is omitted or nil, use the selected frame.") | |
4256 | (face1, face2, frame) | |
4257 | Lisp_Object face1, face2, frame; | |
4258 | { | |
4259 | int equal_p; | |
4260 | struct frame *f; | |
4261 | Lisp_Object lface1, lface2; | |
4262 | ||
4263 | if (EQ (frame, Qt)) | |
4264 | f = NULL; | |
4265 | else | |
4266 | /* Don't use check_x_frame here because this function is called | |
4267 | before X frames exist. At that time, if FRAME is nil, | |
4268 | selected_frame will be used which is the frame dumped with | |
4269 | Emacs. That frame is not an X frame. */ | |
4270 | f = frame_or_selected_frame (frame, 2); | |
4271 | ||
4272 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4273 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4274 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4275 | XVECTOR (lface2)->contents); | |
4276 | return equal_p ? Qt : Qnil; | |
4277 | } | |
4278 | ||
4279 | ||
4280 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, | |
4281 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
4282 | "True if FACE has no attribute specified.\n\ | |
4283 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4284 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4285 | If FRAME is omitted or nil, use the selected frame.") | |
4286 | (face, frame) | |
4287 | Lisp_Object face, frame; | |
4288 | { | |
4289 | struct frame *f; | |
4290 | Lisp_Object lface; | |
4291 | int i; | |
4292 | ||
4293 | if (NILP (frame)) | |
c0617987 GM |
4294 | frame = selected_frame; |
4295 | CHECK_LIVE_FRAME (frame, 0); | |
4296 | f = XFRAME (frame); | |
82641697 GM |
4297 | |
4298 | if (EQ (frame, Qt)) | |
4299 | lface = lface_from_face_name (NULL, face, 1); | |
4300 | else | |
4301 | lface = lface_from_face_name (f, face, 1); | |
4302 | ||
4303 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4304 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
4305 | break; | |
4306 | ||
4307 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; | |
4308 | } | |
4309 | ||
4310 | ||
4311 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
4312 | 0, 1, 0, | |
4313 | "Return an alist of frame-local faces defined on FRAME.\n\ | |
4314 | For internal use only.") | |
4315 | (frame) | |
4316 | Lisp_Object frame; | |
4317 | { | |
4318 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4319 | return f->face_alist; | |
4320 | } | |
4321 | ||
4322 | ||
4323 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4324 | below in computing a hash value for a Lisp face. */ | |
4325 | ||
4326 | static INLINE unsigned | |
4327 | hash_string_case_insensitive (string) | |
4328 | Lisp_Object string; | |
4329 | { | |
4330 | unsigned char *s; | |
4331 | unsigned hash = 0; | |
4332 | xassert (STRINGP (string)); | |
4333 | for (s = XSTRING (string)->data; *s; ++s) | |
4334 | hash = (hash << 1) ^ tolower (*s); | |
4335 | return hash; | |
4336 | } | |
4337 | ||
4338 | ||
4339 | /* Return a hash code for face attribute vector V. */ | |
4340 | ||
4341 | static INLINE unsigned | |
4342 | lface_hash (v) | |
4343 | Lisp_Object *v; | |
4344 | { | |
4345 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4346 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4347 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
4348 | ^ (unsigned) v[LFACE_WEIGHT_INDEX] | |
4349 | ^ (unsigned) v[LFACE_SLANT_INDEX] | |
4350 | ^ (unsigned) v[LFACE_SWIDTH_INDEX] | |
4351 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); | |
4352 | } | |
4353 | ||
4354 | ||
4355 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4356 | considering charsets/registries). They do if they specify the same | |
4357 | family, point size, weight, width and slant. Both LFACE1 and | |
4358 | LFACE2 must be fully-specified. */ | |
4359 | ||
4360 | static INLINE int | |
4361 | lface_same_font_attributes_p (lface1, lface2) | |
4362 | Lisp_Object *lface1, *lface2; | |
4363 | { | |
4364 | xassert (lface_fully_specified_p (lface1) | |
4365 | && lface_fully_specified_p (lface2)); | |
4366 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4367 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
4368 | && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) | |
4369 | == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) | |
4370 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) | |
4371 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
4372 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX])); | |
4373 | } | |
4374 | ||
4375 | ||
4376 | \f | |
4377 | /*********************************************************************** | |
4378 | Realized Faces | |
4379 | ***********************************************************************/ | |
4380 | ||
4381 | /* Allocate and return a new realized face for Lisp face attribute | |
4382 | vector ATTR, charset CHARSET, and registry REGISTRY. */ | |
4383 | ||
4384 | static struct face * | |
4385 | make_realized_face (attr, charset, registry) | |
4386 | Lisp_Object *attr; | |
4387 | int charset; | |
4388 | Lisp_Object registry; | |
4389 | { | |
4390 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4391 | bzero (face, sizeof *face); | |
4392 | face->charset = charset; | |
4393 | face->registry = registry; | |
4394 | bcopy (attr, face->lface, sizeof face->lface); | |
4395 | return face; | |
4396 | } | |
4397 | ||
4398 | ||
4399 | /* Free realized face FACE, including its X resources. FACE may | |
4400 | be null. */ | |
4401 | ||
4402 | static void | |
4403 | free_realized_face (f, face) | |
4404 | struct frame *f; | |
4405 | struct face *face; | |
4406 | { | |
4407 | if (face) | |
4408 | { | |
4409 | #ifdef HAVE_X_WINDOWS | |
4410 | if (FRAME_X_P (f)) | |
4411 | { | |
4412 | if (face->gc) | |
4413 | { | |
4414 | x_free_gc (f, face->gc); | |
4415 | face->gc = 0; | |
4416 | } | |
4417 | ||
4418 | free_face_colors (f, face); | |
4419 | x_destroy_bitmap (f, face->stipple); | |
4420 | } | |
4421 | #endif /* HAVE_X_WINDOWS */ | |
4422 | ||
4423 | xfree (face); | |
4424 | } | |
4425 | } | |
4426 | ||
4427 | ||
4428 | /* Prepare face FACE for subsequent display on frame F. This | |
4429 | allocated GCs if they haven't been allocated yet or have been freed | |
4430 | by clearing the face cache. */ | |
4431 | ||
4432 | void | |
4433 | prepare_face_for_display (f, face) | |
4434 | struct frame *f; | |
4435 | struct face *face; | |
4436 | { | |
4437 | #ifdef HAVE_X_WINDOWS | |
4438 | xassert (FRAME_X_P (f)); | |
4439 | ||
4440 | if (face->gc == 0) | |
4441 | { | |
4442 | XGCValues xgcv; | |
4443 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4444 | ||
4445 | xgcv.foreground = face->foreground; | |
4446 | xgcv.background = face->background; | |
4447 | xgcv.graphics_exposures = False; | |
4448 | ||
4449 | /* The font of FACE may be null if we couldn't load it. */ | |
4450 | if (face->font) | |
4451 | { | |
4452 | xgcv.font = face->font->fid; | |
4453 | mask |= GCFont; | |
4454 | } | |
4455 | ||
4456 | BLOCK_INPUT; | |
4457 | if (face->stipple) | |
4458 | { | |
be8a72f4 | 4459 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4460 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4461 | mask |= GCFillStyle | GCStipple; | |
4462 | } | |
4463 | ||
4464 | face->gc = x_create_gc (f, mask, &xgcv); | |
4465 | UNBLOCK_INPUT; | |
4466 | } | |
4467 | #endif | |
4468 | } | |
4469 | ||
4470 | ||
4471 | /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in | |
4472 | macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for | |
4473 | ISO8859-1 if the ASCII face suffices. */ | |
4474 | ||
4475 | int | |
4476 | face_suitable_for_iso8859_1_p (face) | |
4477 | struct face *face; | |
4478 | { | |
4479 | int len = strlen (face->font_name); | |
4480 | return len >= 9 && xstricmp (face->font_name + len - 9, "iso8859-1") == 0; | |
4481 | } | |
4482 | ||
4483 | ||
4484 | /* Value is non-zero if FACE is suitable for displaying characters | |
4485 | of CHARSET. CHARSET < 0 means unibyte text. */ | |
4486 | ||
4487 | INLINE int | |
4488 | face_suitable_for_charset_p (face, charset) | |
4489 | struct face *face; | |
4490 | int charset; | |
4491 | { | |
4492 | int suitable_p = 0; | |
4493 | ||
4494 | if (charset < 0) | |
4495 | { | |
4496 | if (EQ (face->registry, Vface_default_registry) | |
4497 | || !NILP (Fequal (face->registry, Vface_default_registry))) | |
4498 | suitable_p = 1; | |
4499 | } | |
4500 | else if (face->charset == charset) | |
4501 | suitable_p = 1; | |
4502 | else if (face->charset == CHARSET_ASCII | |
4503 | && charset == charset_latin_iso8859_1) | |
4504 | suitable_p = face_suitable_for_iso8859_1_p (face); | |
4505 | else if (face->charset == charset_latin_iso8859_1 | |
4506 | && charset == CHARSET_ASCII) | |
4507 | suitable_p = 1; | |
4508 | ||
4509 | return suitable_p; | |
4510 | } | |
4511 | ||
4512 | ||
4513 | \f | |
4514 | /*********************************************************************** | |
4515 | Face Cache | |
4516 | ***********************************************************************/ | |
4517 | ||
4518 | /* Return a new face cache for frame F. */ | |
4519 | ||
4520 | static struct face_cache * | |
4521 | make_face_cache (f) | |
4522 | struct frame *f; | |
4523 | { | |
4524 | struct face_cache *c; | |
4525 | int size; | |
4526 | ||
4527 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4528 | bzero (c, sizeof *c); | |
4529 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4530 | c->buckets = (struct face **) xmalloc (size); | |
4531 | bzero (c->buckets, size); | |
4532 | c->size = 50; | |
4533 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4534 | c->f = f; | |
4535 | return c; | |
4536 | } | |
4537 | ||
4538 | ||
4539 | /* Clear out all graphics contexts for all realized faces, except for | |
4540 | the basic faces. This should be done from time to time just to avoid | |
4541 | keeping too many graphics contexts that are no longer needed. */ | |
4542 | ||
4543 | static void | |
4544 | clear_face_gcs (c) | |
4545 | struct face_cache *c; | |
4546 | { | |
4547 | if (c && FRAME_X_P (c->f)) | |
4548 | { | |
4549 | #ifdef HAVE_X_WINDOWS | |
4550 | int i; | |
4551 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4552 | { | |
4553 | struct face *face = c->faces_by_id[i]; | |
4554 | if (face && face->gc) | |
4555 | { | |
4556 | x_free_gc (c->f, face->gc); | |
4557 | face->gc = 0; | |
4558 | } | |
4559 | } | |
4560 | #endif /* HAVE_X_WINDOWS */ | |
4561 | } | |
4562 | } | |
4563 | ||
4564 | ||
4565 | /* Free all realized faces in face cache C, including basic faces. C | |
4566 | may be null. If faces are freed, make sure the frame's current | |
4567 | matrix is marked invalid, so that a display caused by an expose | |
4568 | event doesn't try to use faces we destroyed. */ | |
4569 | ||
4570 | static void | |
4571 | free_realized_faces (c) | |
4572 | struct face_cache *c; | |
4573 | { | |
4574 | if (c && c->used) | |
4575 | { | |
4576 | int i, size; | |
4577 | struct frame *f = c->f; | |
4578 | ||
4579 | for (i = 0; i < c->used; ++i) | |
4580 | { | |
4581 | free_realized_face (f, c->faces_by_id[i]); | |
4582 | c->faces_by_id[i] = NULL; | |
4583 | } | |
4584 | ||
4585 | c->used = 0; | |
4586 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4587 | bzero (c->buckets, size); | |
4588 | ||
4589 | /* Must do a thorough redisplay the next time. Mark current | |
4590 | matrices as invalid because they will reference faces freed | |
4591 | above. This function is also called when a frame is | |
4592 | destroyed. In this case, the root window of F is nil. */ | |
4593 | if (WINDOWP (f->root_window)) | |
4594 | { | |
4595 | clear_current_matrices (f); | |
4596 | ++windows_or_buffers_changed; | |
4597 | } | |
4598 | } | |
4599 | } | |
4600 | ||
4601 | ||
4602 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. | |
4603 | This is done after attributes of a named face have been changed, | |
4604 | because we can't tell which realized faces depend on that face. */ | |
4605 | ||
4606 | void | |
4607 | free_all_realized_faces (frame) | |
4608 | Lisp_Object frame; | |
4609 | { | |
4610 | if (NILP (frame)) | |
4611 | { | |
4612 | Lisp_Object rest; | |
4613 | FOR_EACH_FRAME (rest, frame) | |
4614 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4615 | } | |
4616 | else | |
4617 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4618 | } | |
4619 | ||
4620 | ||
4621 | /* Free face cache C and faces in it, including their X resources. */ | |
4622 | ||
4623 | static void | |
4624 | free_face_cache (c) | |
4625 | struct face_cache *c; | |
4626 | { | |
4627 | if (c) | |
4628 | { | |
4629 | free_realized_faces (c); | |
4630 | xfree (c->buckets); | |
4631 | xfree (c->faces_by_id); | |
4632 | xfree (c); | |
4633 | } | |
4634 | } | |
4635 | ||
4636 | ||
4637 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
4638 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
4639 | collision list of the face hash table of C. This is done because | |
4640 | otherwise lookup_face would find FACE for every charset, even if | |
4641 | faces with the same attributes but for specific charsets exist. */ | |
4642 | ||
4643 | static void | |
4644 | cache_face (c, face, hash) | |
4645 | struct face_cache *c; | |
4646 | struct face *face; | |
4647 | unsigned hash; | |
4648 | { | |
4649 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4650 | ||
4651 | face->hash = hash; | |
4652 | ||
4653 | if (face->fontset >= 0) | |
4654 | { | |
4655 | struct face *last = c->buckets[i]; | |
4656 | if (last) | |
4657 | { | |
4658 | while (last->next) | |
4659 | last = last->next; | |
4660 | last->next = face; | |
4661 | face->prev = last; | |
4662 | face->next = NULL; | |
4663 | } | |
4664 | else | |
4665 | { | |
4666 | c->buckets[i] = face; | |
4667 | face->prev = face->next = NULL; | |
4668 | } | |
4669 | } | |
4670 | else | |
4671 | { | |
4672 | face->prev = NULL; | |
4673 | face->next = c->buckets[i]; | |
4674 | if (face->next) | |
4675 | face->next->prev = face; | |
4676 | c->buckets[i] = face; | |
4677 | } | |
4678 | ||
4679 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4680 | slot as FACE->id. */ | |
4681 | for (i = 0; i < c->used; ++i) | |
4682 | if (c->faces_by_id[i] == NULL) | |
4683 | break; | |
4684 | face->id = i; | |
4685 | ||
4686 | /* Maybe enlarge C->faces_by_id. */ | |
4687 | if (i == c->used && c->used == c->size) | |
4688 | { | |
4689 | int new_size = 2 * c->size; | |
4690 | int sz = new_size * sizeof *c->faces_by_id; | |
4691 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4692 | c->size = new_size; | |
4693 | } | |
4694 | ||
4695 | #if GLYPH_DEBUG | |
4696 | /* Check that FACE got a unique id. */ | |
4697 | { | |
4698 | int j, n; | |
4699 | struct face *face; | |
4700 | ||
4701 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4702 | for (face = c->buckets[j]; face; face = face->next) | |
4703 | if (face->id == i) | |
4704 | ++n; | |
4705 | ||
4706 | xassert (n == 1); | |
4707 | } | |
4708 | #endif /* GLYPH_DEBUG */ | |
4709 | ||
4710 | c->faces_by_id[i] = face; | |
4711 | if (i == c->used) | |
4712 | ++c->used; | |
4713 | } | |
4714 | ||
4715 | ||
4716 | /* Remove face FACE from cache C. */ | |
4717 | ||
4718 | static void | |
4719 | uncache_face (c, face) | |
4720 | struct face_cache *c; | |
4721 | struct face *face; | |
4722 | { | |
4723 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
4724 | ||
4725 | if (face->prev) | |
4726 | face->prev->next = face->next; | |
4727 | else | |
4728 | c->buckets[i] = face->next; | |
4729 | ||
4730 | if (face->next) | |
4731 | face->next->prev = face->prev; | |
4732 | ||
4733 | c->faces_by_id[face->id] = NULL; | |
4734 | if (face->id == c->used) | |
4735 | --c->used; | |
4736 | } | |
4737 | ||
4738 | ||
4739 | /* Look up a realized face with face attributes ATTR in the face cache | |
4740 | of frame F. The face will be used to display characters of | |
4741 | CHARSET. CHARSET < 0 means the face will be used to display | |
4742 | unibyte text. The value of face-default-registry is used to choose | |
4743 | a font for the face in that case. Value is the ID of the face | |
4744 | found. If no suitable face is found, realize a new one. */ | |
4745 | ||
4746 | INLINE int | |
4747 | lookup_face (f, attr, charset) | |
4748 | struct frame *f; | |
4749 | Lisp_Object *attr; | |
4750 | int charset; | |
4751 | { | |
4752 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
4753 | unsigned hash; | |
4754 | int i; | |
4755 | struct face *face; | |
4756 | ||
4757 | xassert (c != NULL); | |
4758 | check_lface_attrs (attr); | |
4759 | ||
4760 | /* Look up ATTR in the face cache. */ | |
4761 | hash = lface_hash (attr); | |
4762 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4763 | ||
4764 | for (face = c->buckets[i]; face; face = face->next) | |
4765 | if (face->hash == hash | |
44747bd0 | 4766 | && (!FRAME_WINDOW_P (f) |
82641697 GM |
4767 | || FACE_SUITABLE_FOR_CHARSET_P (face, charset)) |
4768 | && lface_equal_p (face->lface, attr)) | |
4769 | break; | |
4770 | ||
4771 | /* If not found, realize a new face. */ | |
4772 | if (face == NULL) | |
4773 | { | |
4774 | face = realize_face (c, attr, charset); | |
4775 | cache_face (c, face, hash); | |
4776 | } | |
4777 | ||
4778 | #if GLYPH_DEBUG | |
4779 | xassert (face == FACE_FROM_ID (f, face->id)); | |
4780 | if (FRAME_X_P (f)) | |
4781 | xassert (charset < 0 || FACE_SUITABLE_FOR_CHARSET_P (face, charset)); | |
4782 | #endif /* GLYPH_DEBUG */ | |
4783 | ||
4784 | return face->id; | |
4785 | } | |
4786 | ||
4787 | ||
4788 | /* Return the face id of the realized face for named face SYMBOL on | |
4789 | frame F suitable for displaying characters from CHARSET. CHARSET < | |
4790 | 0 means unibyte text. */ | |
4791 | ||
4792 | int | |
4793 | lookup_named_face (f, symbol, charset) | |
4794 | struct frame *f; | |
4795 | Lisp_Object symbol; | |
4796 | int charset; | |
4797 | { | |
4798 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4799 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4800 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4801 | ||
4802 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4803 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4804 | merge_face_vectors (symbol_attrs, attrs); | |
4805 | return lookup_face (f, attrs, charset); | |
4806 | } | |
4807 | ||
4808 | ||
4809 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
4810 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
4811 | ||
4812 | int | |
4813 | ascii_face_of_lisp_face (f, lface_id) | |
4814 | struct frame *f; | |
4815 | int lface_id; | |
4816 | { | |
4817 | int face_id; | |
4818 | ||
4819 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) | |
4820 | { | |
4821 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
4822 | face_id = lookup_named_face (f, face_name, CHARSET_ASCII); | |
4823 | } | |
4824 | else | |
4825 | face_id = -1; | |
4826 | ||
4827 | return face_id; | |
4828 | } | |
4829 | ||
4830 | ||
4831 | /* Return a face for charset ASCII that is like the face with id | |
4832 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4833 | STEPS < 0 means larger. Value is the id of the face. */ | |
4834 | ||
4835 | int | |
4836 | smaller_face (f, face_id, steps) | |
4837 | struct frame *f; | |
4838 | int face_id, steps; | |
4839 | { | |
4840 | #ifdef HAVE_X_WINDOWS | |
4841 | struct face *face; | |
4842 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4843 | int pt, last_pt, last_height; | |
4844 | int delta; | |
4845 | int new_face_id; | |
4846 | struct face *new_face; | |
4847 | ||
4848 | /* If not called for an X frame, just return the original face. */ | |
4849 | if (FRAME_TERMCAP_P (f)) | |
4850 | return face_id; | |
4851 | ||
4852 | /* Try in increments of 1/2 pt. */ | |
4853 | delta = steps < 0 ? 5 : -5; | |
4854 | steps = abs (steps); | |
4855 | ||
4856 | face = FACE_FROM_ID (f, face_id); | |
4857 | bcopy (face->lface, attrs, sizeof attrs); | |
4858 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4859 | new_face_id = face_id; | |
4860 | last_height = FONT_HEIGHT (face->font); | |
4861 | ||
4862 | while (steps | |
4863 | && pt + delta > 0 | |
4864 | /* Give up if we cannot find a font within 10pt. */ | |
4865 | && abs (last_pt - pt) < 100) | |
4866 | { | |
4867 | /* Look up a face for a slightly smaller/larger font. */ | |
4868 | pt += delta; | |
4869 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
4870 | new_face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4871 | new_face = FACE_FROM_ID (f, new_face_id); | |
4872 | ||
4873 | /* If height changes, count that as one step. */ | |
4874 | if (FONT_HEIGHT (new_face->font) != last_height) | |
4875 | { | |
4876 | --steps; | |
4877 | last_height = FONT_HEIGHT (new_face->font); | |
4878 | last_pt = pt; | |
4879 | } | |
4880 | } | |
4881 | ||
4882 | return new_face_id; | |
4883 | ||
4884 | #else /* not HAVE_X_WINDOWS */ | |
4885 | ||
4886 | return face_id; | |
4887 | ||
4888 | #endif /* not HAVE_X_WINDOWS */ | |
4889 | } | |
4890 | ||
4891 | ||
4892 | /* Return a face for charset ASCII that is like the face with id | |
4893 | FACE_ID on frame F, but has height HEIGHT. */ | |
4894 | ||
4895 | int | |
4896 | face_with_height (f, face_id, height) | |
4897 | struct frame *f; | |
4898 | int face_id; | |
4899 | int height; | |
4900 | { | |
4901 | #ifdef HAVE_X_WINDOWS | |
4902 | struct face *face; | |
4903 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4904 | ||
4905 | if (FRAME_TERMCAP_P (f) | |
4906 | || height <= 0) | |
4907 | return face_id; | |
4908 | ||
4909 | face = FACE_FROM_ID (f, face_id); | |
4910 | bcopy (face->lface, attrs, sizeof attrs); | |
4911 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
4912 | face_id = lookup_face (f, attrs, CHARSET_ASCII); | |
4913 | #endif /* HAVE_X_WINDOWS */ | |
4914 | ||
4915 | return face_id; | |
4916 | } | |
4917 | ||
44747bd0 EZ |
4918 | /* Return the face id of the realized face for named face SYMBOL on |
4919 | frame F suitable for displaying characters from CHARSET (CHARSET < | |
4920 | 0 means unibyte text), and use attributes of the face FACE_ID for | |
4921 | attributes that aren't completely specified by SYMBOL. This is | |
4922 | like lookup_named_face, except that the default attributes come | |
4923 | from FACE_ID, not from the default face. FACE_ID is assumed to | |
4924 | be already realized. */ | |
4925 | ||
4926 | int | |
4927 | lookup_derived_face (f, symbol, charset, face_id) | |
4928 | struct frame *f; | |
4929 | Lisp_Object symbol; | |
4930 | int charset; | |
4931 | int face_id; | |
4932 | { | |
4933 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4934 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4935 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
4936 | ||
4937 | if (!default_face) | |
4938 | abort (); | |
4939 | ||
4940 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4941 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4942 | merge_face_vectors (symbol_attrs, attrs); | |
4943 | return lookup_face (f, attrs, charset); | |
4944 | } | |
4945 | ||
82641697 GM |
4946 | |
4947 | \f | |
4948 | /*********************************************************************** | |
4949 | Font selection | |
4950 | ***********************************************************************/ | |
4951 | ||
4952 | DEFUN ("internal-set-font-selection-order", | |
4953 | Finternal_set_font_selection_order, | |
4954 | Sinternal_set_font_selection_order, 1, 1, 0, | |
4955 | "Set font selection order for face font selection to ORDER.\n\ | |
4956 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
4957 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
4958 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
4959 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
4960 | a suitable height, and then tries to match the font weight.\n\ | |
4961 | Value is ORDER.") | |
4962 | (order) | |
4963 | Lisp_Object order; | |
4964 | { | |
4965 | Lisp_Object list; | |
4966 | int i; | |
4967 | int indices[4]; | |
4968 | ||
4969 | CHECK_LIST (order, 0); | |
4970 | bzero (indices, sizeof indices); | |
4971 | i = 0; | |
4972 | ||
4973 | for (list = order; | |
4974 | CONSP (list) && i < DIM (indices); | |
4975 | list = XCDR (list), ++i) | |
4976 | { | |
4977 | Lisp_Object attr = XCAR (list); | |
4978 | int xlfd; | |
4979 | ||
4980 | if (EQ (attr, QCwidth)) | |
4981 | xlfd = XLFD_SWIDTH; | |
4982 | else if (EQ (attr, QCheight)) | |
4983 | xlfd = XLFD_POINT_SIZE; | |
4984 | else if (EQ (attr, QCweight)) | |
4985 | xlfd = XLFD_WEIGHT; | |
4986 | else if (EQ (attr, QCslant)) | |
4987 | xlfd = XLFD_SLANT; | |
4988 | else | |
4989 | break; | |
4990 | ||
4991 | if (indices[i] != 0) | |
4992 | break; | |
4993 | indices[i] = xlfd; | |
4994 | } | |
4995 | ||
4996 | if (!NILP (list) | |
4997 | || i != DIM (indices) | |
4998 | || indices[0] == 0 | |
4999 | || indices[1] == 0 | |
5000 | || indices[2] == 0 | |
5001 | || indices[3] == 0) | |
5002 | signal_error ("Invalid font sort order", order); | |
5003 | ||
5004 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5005 | { | |
5006 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5007 | free_all_realized_faces (Qnil); | |
5008 | } | |
5009 | ||
5010 | return Qnil; | |
5011 | } | |
5012 | ||
5013 | ||
5014 | DEFUN ("internal-set-alternative-font-family-alist", | |
5015 | Finternal_set_alternative_font_family_alist, | |
5016 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
5017 | "Define alternative font families to try in face font selection.\n\ | |
5018 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
5019 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
5020 | be found. Value is ALIST.") | |
5021 | (alist) | |
5022 | Lisp_Object alist; | |
5023 | { | |
5024 | CHECK_LIST (alist, 0); | |
5025 | Vface_alternative_font_family_alist = alist; | |
5026 | free_all_realized_faces (Qnil); | |
5027 | return alist; | |
5028 | } | |
5029 | ||
5030 | ||
5031 | #ifdef HAVE_X_WINDOWS | |
5032 | ||
5033 | /* Return the X registry and encoding of font name FONT_NAME on frame F. | |
5034 | Value is nil if not successful. */ | |
5035 | ||
5036 | static Lisp_Object | |
5037 | deduce_unibyte_registry (f, font_name) | |
5038 | struct frame *f; | |
5039 | char *font_name; | |
5040 | { | |
5041 | struct font_name font; | |
5042 | Lisp_Object registry = Qnil; | |
5043 | ||
5044 | font.name = STRDUPA (font_name); | |
5045 | if (split_font_name (f, &font, 0)) | |
5046 | { | |
5047 | char *buffer; | |
5048 | ||
5049 | /* Extract registry and encoding. */ | |
5050 | buffer = (char *) alloca (strlen (font.fields[XLFD_REGISTRY]) | |
5051 | + strlen (font.fields[XLFD_ENCODING]) | |
5052 | + 10); | |
5053 | strcpy (buffer, font.fields[XLFD_REGISTRY]); | |
5054 | strcat (buffer, "-"); | |
5055 | strcat (buffer, font.fields[XLFD_ENCODING]); | |
5056 | registry = build_string (buffer); | |
5057 | } | |
5058 | ||
5059 | return registry; | |
5060 | } | |
5061 | ||
5062 | ||
5063 | /* Value is non-zero if FONT is the name of a scalable font. The | |
5064 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5065 | are zero for scalable fonts. Intlfonts contain at least one | |
5066 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5067 | just test average width. */ | |
5068 | ||
5069 | static int | |
5070 | font_scalable_p (font) | |
5071 | struct font_name *font; | |
5072 | { | |
5073 | char *s = font->fields[XLFD_AVGWIDTH]; | |
5074 | return *s == '0' && *(s + 1) == '\0'; | |
5075 | } | |
5076 | ||
5077 | ||
5078 | /* Value is non-zero if FONT1 is a better match for font attributes | |
5079 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5080 | font sort order. COMPARE_PT_P zero means don't compare point | |
5081 | sizes. */ | |
5082 | ||
5083 | static int | |
5084 | better_font_p (values, font1, font2, compare_pt_p) | |
5085 | int *values; | |
5086 | struct font_name *font1, *font2; | |
5087 | int compare_pt_p; | |
5088 | { | |
5089 | int i; | |
5090 | ||
5091 | for (i = 0; i < 4; ++i) | |
5092 | { | |
5093 | int xlfd_idx = font_sort_order[i]; | |
5094 | ||
5095 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5096 | { | |
5097 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5098 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
5099 | ||
5100 | if (delta1 > delta2) | |
5101 | return 0; | |
5102 | else if (delta1 < delta2) | |
5103 | return 1; | |
5104 | else | |
5105 | { | |
5106 | /* The difference may be equal because, e.g., the face | |
5107 | specifies `italic' but we have only `regular' and | |
5108 | `oblique'. Prefer `oblique' in this case. */ | |
5109 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5110 | && font1->numeric[xlfd_idx] > values[i] | |
5111 | && font2->numeric[xlfd_idx] < values[i]) | |
5112 | return 1; | |
5113 | } | |
5114 | } | |
5115 | } | |
5116 | ||
5117 | return 0; | |
5118 | } | |
5119 | ||
5120 | ||
5121 | #if SCALABLE_FONTS | |
5122 | ||
5123 | /* Value is non-zero if FONT is an exact match for face attributes in | |
5124 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
5125 | sort order. */ | |
5126 | ||
5127 | static int | |
5128 | exact_face_match_p (specified, font) | |
5129 | int *specified; | |
5130 | struct font_name *font; | |
5131 | { | |
5132 | int i; | |
5133 | ||
5134 | for (i = 0; i < 4; ++i) | |
5135 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
5136 | break; | |
5137 | ||
5138 | return i == 4; | |
5139 | } | |
5140 | ||
5141 | ||
5142 | /* Value is the name of a scaled font, generated from scalable font | |
5143 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5144 | Value is allocated from heap. */ | |
5145 | ||
5146 | static char * | |
5147 | build_scalable_font_name (f, font, specified_pt) | |
5148 | struct frame *f; | |
5149 | struct font_name *font; | |
5150 | int specified_pt; | |
5151 | { | |
5152 | char point_size[20], pixel_size[20]; | |
5153 | int pixel_value; | |
5154 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5155 | double pt; | |
5156 | ||
5157 | /* If scalable font is for a specific resolution, compute | |
5158 | the point size we must specify from the resolution of | |
5159 | the display and the specified resolution of the font. */ | |
5160 | if (font->numeric[XLFD_RESY] != 0) | |
5161 | { | |
5162 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
5163 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
5164 | } | |
5165 | else | |
5166 | { | |
5167 | pt = specified_pt; | |
5168 | pixel_value = resy / 720.0 * pt; | |
5169 | } | |
5170 | ||
5171 | /* Set point size of the font. */ | |
5172 | sprintf (point_size, "%d", (int) pt); | |
5173 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5174 | font->numeric[XLFD_POINT_SIZE] = pt; | |
5175 | ||
5176 | /* Set pixel size. */ | |
5177 | sprintf (pixel_size, "%d", pixel_value); | |
5178 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5179 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
5180 | ||
5181 | /* If font doesn't specify its resolution, use the | |
5182 | resolution of the display. */ | |
5183 | if (font->numeric[XLFD_RESY] == 0) | |
5184 | { | |
5185 | char buffer[20]; | |
5186 | sprintf (buffer, "%d", (int) resy); | |
5187 | font->fields[XLFD_RESY] = buffer; | |
5188 | font->numeric[XLFD_RESY] = resy; | |
5189 | } | |
5190 | ||
5191 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) | |
5192 | { | |
5193 | char buffer[20]; | |
5194 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5195 | sprintf (buffer, "%d", resx); | |
5196 | font->fields[XLFD_RESX] = buffer; | |
5197 | font->numeric[XLFD_RESX] = resx; | |
5198 | } | |
5199 | ||
5200 | return build_font_name (font); | |
5201 | } | |
5202 | ||
5203 | ||
5204 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5205 | can't run a Lisp function here since this function may be called | |
5206 | with input blocked. */ | |
5207 | ||
5208 | static int | |
5209 | may_use_scalable_font_p (font, name) | |
5210 | struct font_name *font; | |
5211 | char *name; | |
5212 | { | |
5213 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5214 | return 1; | |
5215 | else if (CONSP (Vscalable_fonts_allowed)) | |
5216 | { | |
5217 | Lisp_Object tail, regexp; | |
5218 | ||
5219 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) | |
5220 | { | |
5221 | regexp = XCAR (tail); | |
5222 | if (STRINGP (regexp) | |
5223 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
5224 | return 1; | |
5225 | } | |
5226 | } | |
5227 | ||
5228 | return 0; | |
5229 | } | |
5230 | ||
5231 | #endif /* SCALABLE_FONTS != 0 */ | |
5232 | ||
5233 | ||
5234 | /* Return the name of the best matching font for face attributes | |
5235 | ATTRS in the array of font_name structures FONTS which contains | |
5236 | NFONTS elements. Value is a font name which is allocated from | |
5237 | the heap. FONTS is freed by this function. */ | |
5238 | ||
5239 | static char * | |
5240 | best_matching_font (f, attrs, fonts, nfonts) | |
5241 | struct frame *f; | |
5242 | Lisp_Object *attrs; | |
5243 | struct font_name *fonts; | |
5244 | int nfonts; | |
5245 | { | |
5246 | char *font_name; | |
5247 | struct font_name *best; | |
5248 | int i, pt; | |
5249 | int specified[4]; | |
5250 | int exact_p; | |
5251 | ||
5252 | if (nfonts == 0) | |
5253 | return NULL; | |
5254 | ||
5255 | /* Make specified font attributes available in `specified', | |
5256 | indexed by sort order. */ | |
5257 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5258 | { | |
5259 | int xlfd_idx = font_sort_order[i]; | |
5260 | ||
5261 | if (xlfd_idx == XLFD_SWIDTH) | |
5262 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5263 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5264 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5265 | else if (xlfd_idx == XLFD_WEIGHT) | |
5266 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5267 | else if (xlfd_idx == XLFD_SLANT) | |
5268 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5269 | else | |
5270 | abort (); | |
5271 | } | |
5272 | ||
5273 | #if SCALABLE_FONTS | |
5274 | ||
5275 | /* Set to 1 */ | |
5276 | exact_p = 0; | |
5277 | ||
5278 | /* Start with the first non-scalable font in the list. */ | |
5279 | for (i = 0; i < nfonts; ++i) | |
5280 | if (!font_scalable_p (fonts + i)) | |
5281 | break; | |
5282 | ||
5283 | /* Find the best match among the non-scalable fonts. */ | |
5284 | if (i < nfonts) | |
5285 | { | |
5286 | best = fonts + i; | |
5287 | ||
5288 | for (i = 1; i < nfonts; ++i) | |
5289 | if (!font_scalable_p (fonts + i) | |
5290 | && better_font_p (specified, fonts + i, best, 1)) | |
5291 | { | |
5292 | best = fonts + i; | |
5293 | ||
5294 | exact_p = exact_face_match_p (specified, best); | |
5295 | if (exact_p) | |
5296 | break; | |
5297 | } | |
5298 | ||
5299 | } | |
5300 | else | |
5301 | best = NULL; | |
5302 | ||
5303 | /* Unless we found an exact match among non-scalable fonts, see if | |
5304 | we can find a better match among scalable fonts. */ | |
5305 | if (!exact_p) | |
5306 | { | |
5307 | /* A scalable font is better if | |
5308 | ||
5309 | 1. its weight, slant, swidth attributes are better, or. | |
5310 | ||
5311 | 2. the best non-scalable font doesn't have the required | |
5312 | point size, and the scalable fonts weight, slant, swidth | |
5313 | isn't worse. */ | |
5314 | ||
5315 | int non_scalable_has_exact_height_p; | |
5316 | ||
5317 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5318 | non_scalable_has_exact_height_p = 1; | |
5319 | else | |
5320 | non_scalable_has_exact_height_p = 0; | |
5321 | ||
5322 | for (i = 0; i < nfonts; ++i) | |
5323 | if (font_scalable_p (fonts + i)) | |
5324 | { | |
5325 | if (best == NULL | |
5326 | || better_font_p (specified, fonts + i, best, 0) | |
5327 | || (!non_scalable_has_exact_height_p | |
5328 | && !better_font_p (specified, best, fonts + i, 0))) | |
5329 | best = fonts + i; | |
5330 | } | |
5331 | } | |
5332 | ||
5333 | if (font_scalable_p (best)) | |
5334 | font_name = build_scalable_font_name (f, best, pt); | |
5335 | else | |
5336 | font_name = build_font_name (best); | |
5337 | ||
5338 | #else /* !SCALABLE_FONTS */ | |
5339 | ||
5340 | /* Find the best non-scalable font. */ | |
5341 | best = fonts; | |
5342 | ||
5343 | for (i = 1; i < nfonts; ++i) | |
5344 | { | |
5345 | xassert (!font_scalable_p (fonts + i)); | |
5346 | if (better_font_p (specified, fonts + i, best, 1)) | |
5347 | best = fonts + i; | |
5348 | } | |
5349 | ||
5350 | font_name = build_font_name (best); | |
5351 | ||
5352 | #endif /* !SCALABLE_FONTS */ | |
5353 | ||
5354 | /* Free font_name structures. */ | |
5355 | free_font_names (fonts, nfonts); | |
5356 | ||
5357 | return font_name; | |
5358 | } | |
5359 | ||
5360 | ||
5361 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5362 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5363 | of font_name structures for the fonts matched. Value is the number | |
5364 | of fonts found. */ | |
5365 | ||
5366 | static int | |
5367 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5368 | struct frame *f; | |
5369 | Lisp_Object *attrs; | |
5370 | char *pattern, *family, *registry; | |
5371 | struct font_name **fonts; | |
5372 | { | |
5373 | int nfonts; | |
5374 | ||
5375 | if (family == NULL) | |
5376 | family = LSTRDUPA (attrs[LFACE_FAMILY_INDEX]); | |
5377 | ||
5378 | nfonts = font_list (f, pattern, family, registry, fonts); | |
5379 | ||
5380 | if (nfonts == 0) | |
5381 | { | |
5382 | Lisp_Object alter; | |
5383 | ||
5384 | /* Try alternative font families from | |
5385 | Vface_alternative_font_family_alist. */ | |
5386 | alter = Fassoc (build_string (family), | |
5387 | Vface_alternative_font_family_alist); | |
5388 | if (CONSP (alter)) | |
5389 | for (alter = XCDR (alter); | |
5390 | CONSP (alter) && nfonts == 0; | |
5391 | alter = XCDR (alter)) | |
5392 | { | |
5393 | if (STRINGP (XCAR (alter))) | |
5394 | { | |
5395 | family = LSTRDUPA (XCAR (alter)); | |
5396 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5397 | } | |
5398 | } | |
5399 | ||
5400 | /* Try font family of the default face or "fixed". */ | |
5401 | if (nfonts == 0) | |
5402 | { | |
5403 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5404 | if (dflt) | |
5405 | family = LSTRDUPA (dflt->lface[LFACE_FAMILY_INDEX]); | |
5406 | else | |
5407 | family = "fixed"; | |
5408 | nfonts = font_list (f, NULL, family, registry, fonts); | |
5409 | } | |
5410 | ||
5411 | /* Try any family with the given registry. */ | |
5412 | if (nfonts == 0) | |
5413 | nfonts = font_list (f, NULL, "*", registry, fonts); | |
5414 | } | |
5415 | ||
5416 | return nfonts; | |
5417 | } | |
5418 | ||
5419 | ||
5420 | /* Return the registry and encoding pattern that fonts for CHARSET | |
5421 | should match. Value is allocated from the heap. */ | |
5422 | ||
5423 | char * | |
5424 | x_charset_registry (charset) | |
5425 | int charset; | |
5426 | { | |
5427 | Lisp_Object prop, charset_plist; | |
5428 | char *registry; | |
5429 | ||
5430 | /* Get registry and encoding from the charset's plist. */ | |
5431 | charset_plist = CHARSET_TABLE_INFO (charset, CHARSET_PLIST_IDX); | |
5432 | prop = Fplist_get (charset_plist, Qx_charset_registry); | |
5433 | ||
5434 | if (STRINGP (prop)) | |
5435 | { | |
5436 | if (index (XSTRING (prop)->data, '-')) | |
5437 | registry = xstrdup (XSTRING (prop)->data); | |
5438 | else | |
5439 | { | |
5440 | /* If registry doesn't contain a `-', make it a pattern. */ | |
5441 | registry = (char *) xmalloc (STRING_BYTES (XSTRING (prop)) + 5); | |
5442 | strcpy (registry, XSTRING (prop)->data); | |
5443 | strcat (registry, "*-*"); | |
5444 | } | |
5445 | } | |
5446 | else if (STRINGP (Vface_default_registry)) | |
5447 | registry = xstrdup (XSTRING (Vface_default_registry)->data); | |
5448 | else | |
5449 | registry = xstrdup ("iso8859-1"); | |
5450 | ||
5451 | return registry; | |
5452 | } | |
5453 | ||
5454 | ||
5455 | /* Return the fontset id of the fontset name or alias name given by | |
5456 | the family attribute of ATTRS on frame F. Value is -1 if the | |
5457 | family attribute of ATTRS doesn't name a fontset. */ | |
5458 | ||
5459 | static int | |
5460 | face_fontset (f, attrs) | |
5461 | struct frame *f; | |
5462 | Lisp_Object *attrs; | |
5463 | { | |
5464 | Lisp_Object name = attrs[LFACE_FAMILY_INDEX]; | |
5465 | int fontset; | |
5466 | ||
5467 | name = Fquery_fontset (name, Qnil); | |
5468 | if (NILP (name)) | |
5469 | fontset = -1; | |
5470 | else | |
5471 | fontset = fs_query_fontset (f, XSTRING (name)->data); | |
5472 | ||
5473 | return fontset; | |
5474 | } | |
5475 | ||
5476 | ||
5477 | /* Get the font to use for the face realizing the fully-specified Lisp | |
5478 | face ATTRS for charset CHARSET on frame F. CHARSET < 0 means | |
5479 | unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use | |
5480 | in this case. Value is the font name which is allocated from the | |
5481 | heap (which means that it must be freed eventually). */ | |
5482 | ||
5483 | static char * | |
5484 | choose_face_font (f, attrs, charset, unibyte_registry) | |
5485 | struct frame *f; | |
5486 | Lisp_Object *attrs; | |
5487 | int charset; | |
5488 | Lisp_Object unibyte_registry; | |
5489 | { | |
5490 | struct font_name *fonts; | |
5491 | int nfonts; | |
5492 | char *registry; | |
5493 | ||
5494 | /* ATTRS must be fully-specified. */ | |
5495 | xassert (lface_fully_specified_p (attrs)); | |
5496 | ||
5497 | if (STRINGP (unibyte_registry)) | |
5498 | registry = xstrdup (XSTRING (unibyte_registry)->data); | |
5499 | else | |
5500 | registry = x_charset_registry (charset); | |
5501 | ||
5502 | nfonts = try_font_list (f, attrs, NULL, NULL, registry, &fonts); | |
5503 | xfree (registry); | |
5504 | return best_matching_font (f, attrs, fonts, nfonts); | |
5505 | } | |
5506 | ||
5507 | ||
5508 | /* Choose a font to use on frame F to display CHARSET using FONTSET | |
5509 | with Lisp face attributes specified by ATTRS. CHARSET may be any | |
78d2079c KH |
5510 | valid charset. CHARSET < 0 means unibyte text. If the fontset |
5511 | doesn't contain a font pattern for charset, use the pattern for | |
5512 | CHARSET_ASCII. Value is the font name which is allocated from the | |
5513 | heap and must be freed by the caller. */ | |
82641697 GM |
5514 | |
5515 | static char * | |
5516 | choose_face_fontset_font (f, attrs, fontset, charset) | |
5517 | struct frame *f; | |
5518 | Lisp_Object *attrs; | |
5519 | int fontset, charset; | |
5520 | { | |
5521 | char *pattern; | |
5522 | char *font_name = NULL; | |
5523 | struct fontset_info *fontset_info; | |
5524 | struct font_name *fonts; | |
5525 | int nfonts; | |
5526 | ||
82641697 GM |
5527 | xassert (fontset >= 0 && fontset < FRAME_FONTSET_DATA (f)->n_fontsets); |
5528 | ||
5529 | /* For unibyte text, use the ASCII font of the fontset. Using the | |
5530 | ASCII font seems to be the most reasonable thing we can do in | |
5531 | this case. */ | |
5532 | if (charset < 0) | |
5533 | charset = CHARSET_ASCII; | |
5534 | ||
5535 | /* Get the font name pattern to use for CHARSET from the fontset. */ | |
5536 | fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; | |
5537 | pattern = fontset_info->fontname[charset]; | |
5538 | if (!pattern) | |
5539 | pattern = fontset_info->fontname[CHARSET_ASCII]; | |
5540 | xassert (pattern); | |
5541 | ||
5542 | /* Get a list of fonts matching that pattern and choose the | |
5543 | best match for the specified face attributes from it. */ | |
5544 | nfonts = try_font_list (f, attrs, pattern, NULL, NULL, &fonts); | |
5545 | font_name = best_matching_font (f, attrs, fonts, nfonts); | |
5546 | return font_name; | |
5547 | } | |
5548 | ||
5549 | #endif /* HAVE_X_WINDOWS */ | |
5550 | ||
5551 | ||
5552 | \f | |
5553 | /*********************************************************************** | |
5554 | Face Realization | |
5555 | ***********************************************************************/ | |
5556 | ||
5557 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5558 | of F don't contain enough information needed to realize the default | |
5559 | face. */ | |
5560 | ||
5561 | static int | |
5562 | realize_basic_faces (f) | |
5563 | struct frame *f; | |
5564 | { | |
5565 | int success_p = 0; | |
5566 | ||
5567 | if (realize_default_face (f)) | |
5568 | { | |
92610620 | 5569 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5570 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5571 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5572 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5573 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5574 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5575 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5576 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5577 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
82641697 GM |
5578 | success_p = 1; |
5579 | } | |
5580 | ||
5581 | return success_p; | |
5582 | } | |
5583 | ||
5584 | ||
5585 | /* Realize the default face on frame F. If the face is not fully | |
5586 | specified, make it fully-specified. Attributes of the default face | |
5587 | that are not explicitly specified are taken from frame parameters. */ | |
5588 | ||
5589 | static int | |
5590 | realize_default_face (f) | |
5591 | struct frame *f; | |
5592 | { | |
5593 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5594 | Lisp_Object lface; | |
5595 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5596 | Lisp_Object unibyte_registry; | |
5597 | Lisp_Object frame_font; | |
5598 | struct face *face; | |
5599 | int fontset; | |
5600 | ||
5601 | /* If the `default' face is not yet known, create it. */ | |
5602 | lface = lface_from_face_name (f, Qdefault, 0); | |
5603 | if (NILP (lface)) | |
5604 | { | |
5605 | Lisp_Object frame; | |
5606 | XSETFRAME (frame, f); | |
5607 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5608 | } | |
5609 | ||
5610 | #ifdef HAVE_X_WINDOWS | |
5611 | if (FRAME_X_P (f)) | |
5612 | { | |
5613 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5614 | frame_font = Fassq (Qfont, f->param_alist); | |
5615 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5616 | frame_font = XCDR (frame_font); | |
5617 | ||
5618 | fontset = fs_query_fontset (f, XSTRING (frame_font)->data); | |
5619 | if (fontset >= 0) | |
5620 | { | |
5621 | /* If frame_font is a fontset name, don't use that for | |
5622 | determining font-related attributes of the default face | |
5623 | because it is just an artificial name. Use the ASCII font of | |
5624 | the fontset, instead. */ | |
5625 | struct font_info *font_info; | |
5626 | struct font_name font; | |
5627 | ||
5628 | BLOCK_INPUT; | |
5629 | font_info = FS_LOAD_FONT (f, FRAME_X_FONT_TABLE (f), CHARSET_ASCII, | |
5630 | NULL, fontset); | |
5631 | UNBLOCK_INPUT; | |
5632 | ||
5633 | /* Set weight etc. from the ASCII font. */ | |
3221576b | 5634 | if (!set_lface_from_font_name (f, lface, font_info->full_name, 0, 0)) |
82641697 GM |
5635 | return 0; |
5636 | ||
5637 | /* Remember registry and encoding of the frame font. */ | |
5638 | unibyte_registry = deduce_unibyte_registry (f, font_info->full_name); | |
5639 | if (STRINGP (unibyte_registry)) | |
5640 | Vface_default_registry = unibyte_registry; | |
5641 | else | |
5642 | Vface_default_registry = build_string ("iso8859-1"); | |
5643 | ||
5644 | /* But set the family to the fontset alias name. Implementation | |
5645 | note: When a font is passed to Emacs via `-fn FONT', a | |
5646 | fontset is created in `x-win.el' whose name ends in | |
5647 | `fontset-startup'. This fontset has an alias name that is | |
5648 | equal to frame_font. */ | |
5649 | xassert (STRINGP (frame_font)); | |
5650 | font.name = LSTRDUPA (frame_font); | |
5651 | ||
5652 | if (!split_font_name (f, &font, 1) | |
5653 | || xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0 | |
5654 | || xstricmp (font.fields[XLFD_ENCODING], "startup") != 0) | |
5655 | LFACE_FAMILY (lface) = frame_font; | |
5656 | } | |
5657 | else | |
5658 | { | |
5659 | /* Frame parameters contain a real font. Fill default face | |
5660 | attributes from that font. */ | |
5661 | if (!set_lface_from_font_name (f, lface, | |
3221576b | 5662 | XSTRING (frame_font)->data, 0, 0)) |
82641697 GM |
5663 | return 0; |
5664 | ||
5665 | /* Remember registry and encoding of the frame font. */ | |
5666 | unibyte_registry | |
5667 | = deduce_unibyte_registry (f, XSTRING (frame_font)->data); | |
5668 | if (STRINGP (unibyte_registry)) | |
5669 | Vface_default_registry = unibyte_registry; | |
5670 | else | |
5671 | Vface_default_registry = build_string ("iso8859-1"); | |
5672 | } | |
5673 | } | |
5674 | #endif /* HAVE_X_WINDOWS */ | |
5675 | ||
44747bd0 | 5676 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5677 | { |
5678 | LFACE_FAMILY (lface) = build_string ("default"); | |
5679 | LFACE_SWIDTH (lface) = Qnormal; | |
5680 | LFACE_HEIGHT (lface) = make_number (1); | |
5681 | LFACE_WEIGHT (lface) = Qnormal; | |
5682 | LFACE_SLANT (lface) = Qnormal; | |
5683 | } | |
5684 | ||
5685 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) | |
5686 | LFACE_UNDERLINE (lface) = Qnil; | |
5687 | ||
5688 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) | |
5689 | LFACE_OVERLINE (lface) = Qnil; | |
5690 | ||
5691 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) | |
5692 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
5693 | ||
5694 | if (UNSPECIFIEDP (LFACE_BOX (lface))) | |
5695 | LFACE_BOX (lface) = Qnil; | |
5696 | ||
5697 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) | |
5698 | LFACE_INVERSE (lface) = Qnil; | |
5699 | ||
5700 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
5701 | { | |
5702 | /* This function is called so early that colors are not yet | |
5703 | set in the frame parameter list. */ | |
5704 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
5705 | ||
5706 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5707 | LFACE_FOREGROUND (lface) = XCDR (color); | |
5708 | else if (FRAME_X_P (f)) | |
5709 | return 0; | |
f9d2fdc4 | 5710 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5711 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 5712 | else |
82641697 GM |
5713 | abort (); |
5714 | } | |
5715 | ||
5716 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
5717 | { | |
5718 | /* This function is called so early that colors are not yet | |
5719 | set in the frame parameter list. */ | |
5720 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5721 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5722 | LFACE_BACKGROUND (lface) = XCDR (color); | |
5723 | else if (FRAME_X_P (f)) | |
5724 | return 0; | |
f9d2fdc4 | 5725 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5726 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 5727 | else |
82641697 GM |
5728 | abort (); |
5729 | } | |
5730 | ||
5731 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) | |
5732 | LFACE_STIPPLE (lface) = Qnil; | |
5733 | ||
5734 | /* Realize the face; it must be fully-specified now. */ | |
5735 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5736 | check_lface (lface); | |
5737 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
5738 | face = realize_face (c, attrs, CHARSET_ASCII); | |
5739 | ||
5740 | /* Remove the former default face. */ | |
5741 | if (c->used > DEFAULT_FACE_ID) | |
5742 | { | |
5743 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5744 | uncache_face (c, default_face); | |
5745 | free_realized_face (f, default_face); | |
5746 | } | |
5747 | ||
5748 | /* Insert the new default face. */ | |
5749 | cache_face (c, face, lface_hash (attrs)); | |
5750 | xassert (face->id == DEFAULT_FACE_ID); | |
5751 | return 1; | |
5752 | } | |
5753 | ||
5754 | ||
5755 | /* Realize basic faces other than the default face in face cache C. | |
5756 | SYMBOL is the face name, ID is the face id the realized face must | |
5757 | have. The default face must have been realized already. */ | |
5758 | ||
5759 | static void | |
5760 | realize_named_face (f, symbol, id) | |
5761 | struct frame *f; | |
5762 | Lisp_Object symbol; | |
5763 | int id; | |
5764 | { | |
5765 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5766 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
5767 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5768 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5769 | struct face *new_face; | |
5770 | ||
5771 | /* The default face must exist and be fully specified. */ | |
5772 | get_lface_attributes (f, Qdefault, attrs, 1); | |
5773 | check_lface_attrs (attrs); | |
5774 | xassert (lface_fully_specified_p (attrs)); | |
5775 | ||
5776 | /* If SYMBOL isn't know as a face, create it. */ | |
5777 | if (NILP (lface)) | |
5778 | { | |
5779 | Lisp_Object frame; | |
5780 | XSETFRAME (frame, f); | |
5781 | lface = Finternal_make_lisp_face (symbol, frame); | |
5782 | } | |
5783 | ||
5784 | /* Merge SYMBOL's face with the default face. */ | |
5785 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5786 | merge_face_vectors (symbol_attrs, attrs); | |
5787 | ||
5788 | /* Realize the face. */ | |
5789 | new_face = realize_face (c, attrs, CHARSET_ASCII); | |
5790 | ||
5791 | /* Remove the former face. */ | |
5792 | if (c->used > id) | |
5793 | { | |
5794 | struct face *old_face = c->faces_by_id[id]; | |
5795 | uncache_face (c, old_face); | |
5796 | free_realized_face (f, old_face); | |
5797 | } | |
5798 | ||
5799 | /* Insert the new face. */ | |
5800 | cache_face (c, new_face, lface_hash (attrs)); | |
5801 | xassert (new_face->id == id); | |
5802 | } | |
5803 | ||
5804 | ||
5805 | /* Realize the fully-specified face with attributes ATTRS in face | |
5806 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5807 | 0. Value is a pointer to the newly created realized face. */ | |
5808 | ||
5809 | static struct face * | |
5810 | realize_face (c, attrs, charset) | |
5811 | struct face_cache *c; | |
5812 | Lisp_Object *attrs; | |
5813 | int charset; | |
5814 | { | |
5815 | struct face *face; | |
5816 | ||
5817 | /* LFACE must be fully specified. */ | |
5818 | xassert (c != NULL); | |
5819 | check_lface_attrs (attrs); | |
5820 | ||
5821 | if (FRAME_X_P (c->f)) | |
5822 | face = realize_x_face (c, attrs, charset); | |
44747bd0 | 5823 | else if (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)) |
82641697 GM |
5824 | face = realize_tty_face (c, attrs, charset); |
5825 | else | |
5826 | abort (); | |
5827 | ||
5828 | return face; | |
5829 | } | |
5830 | ||
5831 | ||
5832 | /* Realize the fully-specified face with attributes ATTRS in face | |
5833 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
5834 | 0. Do it for X frame C->f. Value is a pointer to the newly | |
5835 | created realized face. */ | |
5836 | ||
5837 | static struct face * | |
5838 | realize_x_face (c, attrs, charset) | |
5839 | struct face_cache *c; | |
5840 | Lisp_Object *attrs; | |
5841 | int charset; | |
5842 | { | |
5843 | #ifdef HAVE_X_WINDOWS | |
5844 | struct face *face, *default_face; | |
78d2079c | 5845 | struct frame *f; |
82641697 GM |
5846 | Lisp_Object stipple, overline, strike_through, box; |
5847 | Lisp_Object unibyte_registry; | |
5848 | struct gcpro gcpro1; | |
5849 | ||
e22ef6eb | 5850 | xassert (FRAME_X_P (c->f)); |
82641697 GM |
5851 | |
5852 | /* If realizing a face for use in unibyte text, get the X registry | |
5853 | and encoding to use from Vface_default_registry. */ | |
5854 | if (charset < 0) | |
5855 | unibyte_registry = (STRINGP (Vface_default_registry) | |
5856 | ? Vface_default_registry | |
5857 | : build_string ("iso8859-1")); | |
5858 | else | |
5859 | unibyte_registry = Qnil; | |
5860 | GCPRO1 (unibyte_registry); | |
5861 | ||
5862 | /* Allocate a new realized face. */ | |
5863 | face = make_realized_face (attrs, charset, unibyte_registry); | |
5864 | ||
78d2079c | 5865 | f = c->f; |
82641697 GM |
5866 | /* Determine the font to use. Most of the time, the font will be |
5867 | the same as the font of the default face, so try that first. */ | |
5868 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5869 | if (default_face | |
5870 | && FACE_SUITABLE_FOR_CHARSET_P (default_face, charset) | |
5871 | && lface_same_font_attributes_p (default_face->lface, attrs)) | |
5872 | { | |
5873 | face->font = default_face->font; | |
5874 | face->fontset = default_face->fontset; | |
5875 | face->font_info_id = default_face->font_info_id; | |
5876 | face->font_name = default_face->font_name; | |
5877 | face->registry = default_face->registry; | |
5878 | } | |
5879 | else if (charset >= 0) | |
5880 | { | |
78d2079c KH |
5881 | /* For all charsets, we use our own font selection functions to |
5882 | choose a best matching font for the specified face | |
5883 | attributes. If the face specifies a fontset alias name, the | |
5884 | fontset determines the font name pattern, otherwise we | |
5885 | construct a font pattern from face attributes and charset. */ | |
82641697 GM |
5886 | |
5887 | char *font_name = NULL; | |
5888 | int fontset = face_fontset (f, attrs); | |
5889 | ||
78d2079c | 5890 | if (fontset < 0) |
82641697 GM |
5891 | font_name = choose_face_font (f, attrs, charset, Qnil); |
5892 | else | |
5893 | { | |
5894 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5895 | fontset = -1; | |
5896 | } | |
5897 | ||
5898 | load_face_font_or_fontset (f, face, font_name, fontset); | |
5899 | xfree (font_name); | |
5900 | } | |
5901 | else | |
5902 | { | |
5903 | /* Unibyte case, and font is not equal to that of the default | |
5904 | face. UNIBYTE_REGISTRY is the X registry and encoding the | |
5905 | font should have. What is a reasonable thing to do if the | |
5906 | user specified a fontset alias name for the face in this | |
5907 | case? We choose a font by taking the ASCII font of the | |
5908 | fontset, but using UNIBYTE_REGISTRY for its registry and | |
5909 | encoding. */ | |
5910 | ||
5911 | char *font_name = NULL; | |
5912 | int fontset = face_fontset (f, attrs); | |
5913 | ||
5914 | if (fontset < 0) | |
5915 | font_name = choose_face_font (f, attrs, charset, unibyte_registry); | |
5916 | else | |
5917 | font_name = choose_face_fontset_font (f, attrs, fontset, charset); | |
5918 | ||
5919 | load_face_font_or_fontset (f, face, font_name, -1); | |
5920 | xfree (font_name); | |
5921 | } | |
5922 | ||
5923 | /* Load colors, and set remaining attributes. */ | |
5924 | ||
5925 | load_face_colors (f, face, attrs); | |
660ed669 | 5926 | |
82641697 GM |
5927 | /* Set up box. */ |
5928 | box = attrs[LFACE_BOX_INDEX]; | |
5929 | if (STRINGP (box)) | |
cb637678 | 5930 | { |
82641697 GM |
5931 | /* A simple box of line width 1 drawn in color given by |
5932 | the string. */ | |
5933 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5934 | LFACE_BOX_INDEX); | |
5935 | face->box = FACE_SIMPLE_BOX; | |
5936 | face->box_line_width = 1; | |
cb637678 | 5937 | } |
82641697 | 5938 | else if (INTEGERP (box)) |
42120bc7 | 5939 | { |
82641697 GM |
5940 | /* Simple box of specified line width in foreground color of the |
5941 | face. */ | |
5942 | xassert (XINT (box) > 0); | |
5943 | face->box = FACE_SIMPLE_BOX; | |
5944 | face->box_line_width = XFASTINT (box); | |
5945 | face->box_color = face->foreground; | |
5946 | face->box_color_defaulted_p = 1; | |
5947 | } | |
5948 | else if (CONSP (box)) | |
5949 | { | |
5950 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5951 | being one of `raised' or `sunken'. */ | |
5952 | face->box = FACE_SIMPLE_BOX; | |
5953 | face->box_color = face->foreground; | |
5954 | face->box_color_defaulted_p = 1; | |
5955 | face->box_line_width = 1; | |
5956 | ||
5957 | while (CONSP (box)) | |
42120bc7 | 5958 | { |
82641697 GM |
5959 | Lisp_Object keyword, value; |
5960 | ||
5961 | keyword = XCAR (box); | |
5962 | box = XCDR (box); | |
5963 | ||
5964 | if (!CONSP (box)) | |
5965 | break; | |
5966 | value = XCAR (box); | |
5967 | box = XCDR (box); | |
5968 | ||
5969 | if (EQ (keyword, QCline_width)) | |
5970 | { | |
5971 | if (INTEGERP (value) && XINT (value) > 0) | |
5972 | face->box_line_width = XFASTINT (value); | |
5973 | } | |
5974 | else if (EQ (keyword, QCcolor)) | |
5975 | { | |
5976 | if (STRINGP (value)) | |
5977 | { | |
5978 | face->box_color = load_color (f, face, value, | |
5979 | LFACE_BOX_INDEX); | |
5980 | face->use_box_color_for_shadows_p = 1; | |
5981 | } | |
5982 | } | |
5983 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5984 | { |
82641697 GM |
5985 | if (EQ (value, Qreleased_button)) |
5986 | face->box = FACE_RAISED_BOX; | |
5987 | else if (EQ (value, Qpressed_button)) | |
5988 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5989 | } |
42120bc7 RS |
5990 | } |
5991 | } | |
195f798e | 5992 | |
82641697 GM |
5993 | /* Text underline, overline, strike-through. */ |
5994 | ||
5995 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) | |
5996 | { | |
5997 | /* Use default color (same as foreground color). */ | |
5998 | face->underline_p = 1; | |
5999 | face->underline_defaulted_p = 1; | |
6000 | face->underline_color = 0; | |
6001 | } | |
6002 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6003 | { |
82641697 GM |
6004 | /* Use specified color. */ |
6005 | face->underline_p = 1; | |
6006 | face->underline_defaulted_p = 0; | |
6007 | face->underline_color | |
6008 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6009 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6010 | } |
82641697 | 6011 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6012 | { |
82641697 GM |
6013 | face->underline_p = 0; |
6014 | face->underline_defaulted_p = 0; | |
6015 | face->underline_color = 0; | |
7b00de84 JB |
6016 | } |
6017 | ||
82641697 GM |
6018 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6019 | if (STRINGP (overline)) | |
cb637678 | 6020 | { |
82641697 GM |
6021 | face->overline_color |
6022 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6023 | LFACE_OVERLINE_INDEX); | |
6024 | face->overline_p = 1; | |
cb637678 | 6025 | } |
82641697 | 6026 | else if (EQ (overline, Qt)) |
cb637678 | 6027 | { |
82641697 GM |
6028 | face->overline_color = face->foreground; |
6029 | face->overline_color_defaulted_p = 1; | |
6030 | face->overline_p = 1; | |
cb637678 JB |
6031 | } |
6032 | ||
82641697 GM |
6033 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6034 | if (STRINGP (strike_through)) | |
6035 | { | |
6036 | face->strike_through_color | |
6037 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6038 | LFACE_STRIKE_THROUGH_INDEX); | |
6039 | face->strike_through_p = 1; | |
6040 | } | |
6041 | else if (EQ (strike_through, Qt)) | |
6042 | { | |
6043 | face->strike_through_color = face->foreground; | |
6044 | face->strike_through_color_defaulted_p = 1; | |
6045 | face->strike_through_p = 1; | |
6046 | } | |
867dd159 | 6047 | |
82641697 GM |
6048 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6049 | if (!NILP (stipple)) | |
6050 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6051 | |
82641697 | 6052 | UNGCPRO; |
78d2079c | 6053 | xassert (face->fontset < 0); |
82641697 GM |
6054 | xassert (FACE_SUITABLE_FOR_CHARSET_P (face, charset)); |
6055 | return face; | |
6056 | #endif /* HAVE_X_WINDOWS */ | |
660ed669 JB |
6057 | } |
6058 | ||
729425b1 | 6059 | |
82641697 GM |
6060 | /* Realize the fully-specified face with attributes ATTRS in face |
6061 | cache C for character set CHARSET or for unibyte text if CHARSET < | |
6062 | 0. Do it for TTY frame C->f. Value is a pointer to the newly | |
6063 | created realized face. */ | |
a8517066 | 6064 | |
82641697 GM |
6065 | static struct face * |
6066 | realize_tty_face (c, attrs, charset) | |
6067 | struct face_cache *c; | |
6068 | Lisp_Object *attrs; | |
6069 | int charset; | |
6070 | { | |
6071 | struct face *face; | |
6072 | int weight, slant; | |
6073 | Lisp_Object color; | |
a61c12d5 EZ |
6074 | Lisp_Object tty_defined_color_alist = |
6075 | Fsymbol_value (intern ("tty-defined-color-alist")); | |
6076 | Lisp_Object tty_color_alist = intern ("tty-color-alist"); | |
6077 | Lisp_Object frame; | |
2d764c78 | 6078 | int face_colors_defaulted = 0; |
729425b1 | 6079 | |
82641697 | 6080 | /* Frame must be a termcap frame. */ |
44747bd0 | 6081 | xassert (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)); |
82641697 GM |
6082 | |
6083 | /* Allocate a new realized face. */ | |
6084 | face = make_realized_face (attrs, charset, Qnil); | |
44747bd0 | 6085 | face->font_name = FRAME_MSDOS_P (c->f) ? "ms-dos" : "tty"; |
82641697 GM |
6086 | |
6087 | /* Map face attributes to TTY appearances. We map slant to | |
6088 | dimmed text because we want italic text to appear differently | |
6089 | and because dimmed text is probably used infrequently. */ | |
6090 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6091 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6092 | ||
6093 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6094 | face->tty_bold_p = 1; | |
6095 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6096 | face->tty_dim_p = 1; | |
6097 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6098 | face->tty_underline_p = 1; | |
6099 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6100 | face->tty_reverse_p = 1; | |
6101 | ||
6102 | /* Map color names to color indices. */ | |
f9d2fdc4 EZ |
6103 | face->foreground = FACE_TTY_DEFAULT_FG_COLOR; |
6104 | face->background = FACE_TTY_DEFAULT_BG_COLOR; | |
82641697 | 6105 | |
a61c12d5 | 6106 | XSETFRAME (frame, c->f); |
82641697 | 6107 | color = attrs[LFACE_FOREGROUND_INDEX]; |
2d764c78 EZ |
6108 | if (STRINGP (color) |
6109 | && XSTRING (color)->size | |
a61c12d5 EZ |
6110 | && !NILP (tty_defined_color_alist) |
6111 | && (color = Fassoc (color, call1 (tty_color_alist, frame)), | |
82641697 | 6112 | CONSP (color))) |
a61c12d5 | 6113 | /* Associations in tty-defined-color-alist are of the form |
2d764c78 EZ |
6114 | (NAME INDEX R G B). We need the INDEX part. */ |
6115 | face->foreground = XINT (XCAR (XCDR (color))); | |
82641697 | 6116 | |
f9d2fdc4 | 6117 | if (face->foreground == FACE_TTY_DEFAULT_FG_COLOR |
2d764c78 | 6118 | && STRINGP (attrs[LFACE_FOREGROUND_INDEX])) |
1697ca38 EZ |
6119 | { |
6120 | face->foreground = load_color (c->f, face, | |
6121 | attrs[LFACE_FOREGROUND_INDEX], | |
6122 | LFACE_FOREGROUND_INDEX); | |
2d764c78 | 6123 | #ifdef MSDOS |
1697ca38 EZ |
6124 | /* If the foreground of the default face is the default color, |
6125 | use the foreground color defined by the frame. */ | |
f9d2fdc4 | 6126 | if (FRAME_MSDOS_P (c->f)) |
1697ca38 | 6127 | { |
f9d2fdc4 EZ |
6128 | if (face->foreground == FACE_TTY_DEFAULT_FG_COLOR |
6129 | || face->foreground == FACE_TTY_DEFAULT_COLOR) | |
6130 | { | |
6131 | face->foreground = FRAME_FOREGROUND_PIXEL (f); | |
6132 | attrs[LFACE_FOREGROUND_INDEX] = | |
6133 | msdos_stdcolor_name (face->foreground); | |
6134 | face_colors_defaulted = 1; | |
6135 | } | |
6136 | else if (face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6137 | { | |
6138 | face->foreground = FRAME_BACKGROUND_PIXEL (f); | |
6139 | attrs[LFACE_FOREGROUND_INDEX] = | |
6140 | msdos_stdcolor_name (face->foreground); | |
6141 | face_colors_defaulted = 1; | |
6142 | } | |
1697ca38 | 6143 | } |
44747bd0 | 6144 | #endif |
2d764c78 | 6145 | } |
44747bd0 | 6146 | |
82641697 | 6147 | color = attrs[LFACE_BACKGROUND_INDEX]; |
2d764c78 EZ |
6148 | if (STRINGP (color) |
6149 | && XSTRING (color)->size | |
a61c12d5 EZ |
6150 | && !NILP (tty_defined_color_alist) |
6151 | && (color = Fassoc (color, call1 (tty_color_alist, frame)), | |
82641697 | 6152 | CONSP (color))) |
a61c12d5 | 6153 | /* Associations in tty-defined-color-alist are of the form |
2d764c78 EZ |
6154 | (NAME INDEX R G B). We need the INDEX part. */ |
6155 | face->background = XINT (XCAR (XCDR (color))); | |
729425b1 | 6156 | |
f9d2fdc4 | 6157 | if (face->background == FACE_TTY_DEFAULT_BG_COLOR |
2d764c78 | 6158 | && STRINGP (attrs[LFACE_BACKGROUND_INDEX])) |
1697ca38 EZ |
6159 | { |
6160 | face->background = load_color (c->f, face, | |
6161 | attrs[LFACE_BACKGROUND_INDEX], | |
6162 | LFACE_BACKGROUND_INDEX); | |
2d764c78 | 6163 | #ifdef MSDOS |
1697ca38 EZ |
6164 | /* If the background of the default face is the default color, |
6165 | use the background color defined by the frame. */ | |
f9d2fdc4 | 6166 | if (FRAME_MSDOS_P (c->f)) |
1697ca38 | 6167 | { |
f9d2fdc4 EZ |
6168 | if (face->background == FACE_TTY_DEFAULT_BG_COLOR |
6169 | || face->background == FACE_TTY_DEFAULT_COLOR) | |
6170 | { | |
6171 | face->background = FRAME_BACKGROUND_PIXEL (f); | |
6172 | attrs[LFACE_BACKGROUND_INDEX] = | |
6173 | msdos_stdcolor_name (face->background); | |
6174 | face_colors_defaulted = 1; | |
6175 | } | |
6176 | else if (face->background == FACE_TTY_DEFAULT_FG_COLOR) | |
6177 | { | |
6178 | face->background = FRAME_FOREGROUND_PIXEL (f); | |
6179 | attrs[LFACE_BACKGROUND_INDEX] = | |
6180 | msdos_stdcolor_name (face->background); | |
6181 | face_colors_defaulted = 1; | |
6182 | } | |
1697ca38 | 6183 | } |
2d764c78 | 6184 | #endif |
1697ca38 | 6185 | } |
44747bd0 | 6186 | |
2d764c78 EZ |
6187 | /* Swap colors if face is inverse-video. If the colors are taken |
6188 | from the frame colors, they are already inverted, since the | |
6189 | frame-creation function calls x-handle-reverse-video. */ | |
6190 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6191 | { |
6192 | unsigned long tem = face->foreground; | |
6193 | ||
6194 | face->foreground = face->background; | |
6195 | face->background = tem; | |
6196 | } | |
44747bd0 | 6197 | |
82641697 | 6198 | return face; |
729425b1 | 6199 | } |
867dd159 | 6200 | |
82641697 | 6201 | |
82641697 GM |
6202 | \f |
6203 | /*********************************************************************** | |
6204 | Computing Faces | |
6205 | ***********************************************************************/ | |
6206 | ||
6207 | /* Return the ID of the face to use to display character CH with face | |
6208 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6209 | |
6210 | int | |
82641697 | 6211 | compute_char_face (f, ch, prop) |
2e16580f | 6212 | struct frame *f; |
82641697 GM |
6213 | int ch; |
6214 | Lisp_Object prop; | |
2e16580f | 6215 | { |
82641697 GM |
6216 | int face_id; |
6217 | int charset = (NILP (current_buffer->enable_multibyte_characters) | |
6218 | ? -1 | |
6219 | : CHAR_CHARSET (ch)); | |
6220 | ||
6221 | if (NILP (prop)) | |
6222 | face_id = FACE_FOR_CHARSET (f, DEFAULT_FACE_ID, charset); | |
6223 | else | |
2e16580f | 6224 | { |
82641697 GM |
6225 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6226 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6227 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6228 | merge_face_vector_with_property (f, attrs, prop); | |
6229 | face_id = lookup_face (f, attrs, charset); | |
2e16580f RS |
6230 | } |
6231 | ||
82641697 | 6232 | return face_id; |
2e16580f | 6233 | } |
bc0db68d | 6234 | |
b349f4fb | 6235 | |
82641697 GM |
6236 | /* Return the face ID associated with buffer position POS for |
6237 | displaying ASCII characters. Return in *ENDPTR the position at | |
6238 | which a different face is needed, as far as text properties and | |
6239 | overlays are concerned. W is a window displaying current_buffer. | |
6240 | ||
6241 | REGION_BEG, REGION_END delimit the region, so it can be | |
6242 | highlighted. | |
6f134486 | 6243 | |
82641697 GM |
6244 | LIMIT is a position not to scan beyond. That is to limit the time |
6245 | this function can take. | |
6246 | ||
6247 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6248 | ||
6249 | The face returned is suitable for displaying CHARSET_ASCII if | |
6250 | current_buffer->enable_multibyte_characters is non-nil. Otherwise, | |
6251 | the face is suitable for displaying unibyte text. */ | |
bc0db68d | 6252 | |
cb637678 | 6253 | int |
82641697 GM |
6254 | face_at_buffer_position (w, pos, region_beg, region_end, |
6255 | endptr, limit, mouse) | |
f211082d | 6256 | struct window *w; |
7b7739b1 | 6257 | int pos; |
bc0db68d | 6258 | int region_beg, region_end; |
7b7739b1 | 6259 | int *endptr; |
b349f4fb | 6260 | int limit; |
6f134486 | 6261 | int mouse; |
7b7739b1 | 6262 | { |
82641697 GM |
6263 | struct frame *f = XFRAME (w->frame); |
6264 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6265 | Lisp_Object prop, position; |
82641697 | 6266 | int i, noverlays; |
7b7739b1 | 6267 | Lisp_Object *overlay_vec; |
f211082d | 6268 | Lisp_Object frame; |
f6b98e0b | 6269 | int endpos; |
82641697 GM |
6270 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6271 | Lisp_Object limit1, end; | |
6272 | struct face *default_face; | |
6273 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
6274 | |
6275 | /* W must display the current buffer. We could write this function | |
6276 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6277 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6278 | |
ac22a6c4 | 6279 | XSETFRAME (frame, f); |
82641697 | 6280 | XSETFASTINT (position, pos); |
7b7739b1 | 6281 | |
f6b98e0b | 6282 | endpos = ZV; |
bc0db68d RS |
6283 | if (pos < region_beg && region_beg < endpos) |
6284 | endpos = region_beg; | |
f6b98e0b | 6285 | |
82641697 GM |
6286 | /* Get the `face' or `mouse_face' text property at POS, and |
6287 | determine the next position at which the property changes. */ | |
6f134486 | 6288 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6289 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6290 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6291 | if (INTEGERP (end)) | |
6292 | endpos = XINT (end); | |
6f134486 | 6293 | |
82641697 | 6294 | /* Look at properties from overlays. */ |
b6d40e46 | 6295 | { |
f6b98e0b | 6296 | int next_overlay; |
9516fe94 RS |
6297 | int len; |
6298 | ||
6299 | /* First try with room for 40 overlays. */ | |
6300 | len = 40; | |
6301 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6302 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6303 | &next_overlay, NULL); |
9516fe94 | 6304 | |
82641697 GM |
6305 | /* If there are more than 40, make enough space for all, and try |
6306 | again. */ | |
9516fe94 RS |
6307 | if (noverlays > len) |
6308 | { | |
6309 | len = noverlays; | |
6310 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6311 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6312 | &next_overlay, NULL); |
9516fe94 | 6313 | } |
b6d40e46 | 6314 | |
f6b98e0b JB |
6315 | if (next_overlay < endpos) |
6316 | endpos = next_overlay; | |
b6d40e46 JB |
6317 | } |
6318 | ||
6319 | *endptr = endpos; | |
7b7739b1 | 6320 | |
82641697 GM |
6321 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6322 | ||
6323 | /* Optimize common cases where we can use the default face. */ | |
6324 | if (noverlays == 0 | |
6325 | && NILP (prop) | |
6326 | && !(pos >= region_beg && pos < region_end) | |
6327 | && (multibyte_p | |
6328 | || !FRAME_WINDOW_P (f) | |
6329 | || FACE_SUITABLE_FOR_CHARSET_P (default_face, -1))) | |
6330 | return DEFAULT_FACE_ID; | |
6331 | ||
6332 | /* Begin with attributes from the default face. */ | |
6333 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6334 | ||
6335 | /* Merge in attributes specified via text properties. */ | |
6336 | if (!NILP (prop)) | |
6337 | merge_face_vector_with_property (f, attrs, prop); | |
6338 | ||
6339 | /* Now merge the overlay data. */ | |
18195655 | 6340 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6341 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6342 | { |
18195655 RS |
6343 | Lisp_Object oend; |
6344 | int oendpos; | |
6345 | ||
6346 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6347 | if (!NILP (prop)) |
6348 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6349 | |
6350 | oend = OVERLAY_END (overlay_vec[i]); | |
6351 | oendpos = OVERLAY_POSITION (oend); | |
6352 | if (oendpos < endpos) | |
6353 | endpos = oendpos; | |
6354 | } | |
6355 | ||
82641697 | 6356 | /* If in the region, merge in the region face. */ |
18195655 RS |
6357 | if (pos >= region_beg && pos < region_end) |
6358 | { | |
82641697 GM |
6359 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6360 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
6361 | ||
18195655 RS |
6362 | if (region_end < endpos) |
6363 | endpos = region_end; | |
18195655 RS |
6364 | } |
6365 | ||
6366 | *endptr = endpos; | |
6367 | ||
82641697 GM |
6368 | /* Look up a realized face with the given face attributes, |
6369 | or realize a new one. Charset is ignored for tty frames. */ | |
6370 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
18195655 RS |
6371 | } |
6372 | ||
60573a90 | 6373 | |
82641697 GM |
6374 | /* Compute the face at character position POS in Lisp string STRING on |
6375 | window W, for charset CHARSET_ASCII. | |
7b7739b1 | 6376 | |
82641697 GM |
6377 | If STRING is an overlay string, it comes from position BUFPOS in |
6378 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6379 | not an overlay string. W must display the current buffer. | |
6380 | REGION_BEG and REGION_END give the start and end positions of the | |
6381 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6382 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6383 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 GM |
6384 | for strings displayed in the mode or top line. |
6385 | ||
6386 | Set *ENDPTR to the next position where to check for faces in | |
6387 | STRING; -1 if the face is constant from POS to the end of the | |
6388 | string. | |
18195655 | 6389 | |
82641697 GM |
6390 | Value is the id of the face to use. The face returned is suitable |
6391 | for displaying CHARSET_ASCII if STRING is multibyte. Otherwise, | |
6392 | the face is suitable for displaying unibyte text. */ | |
fffc2367 | 6393 | |
82641697 GM |
6394 | int |
6395 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6396 | region_end, endptr, base_face_id) | |
6397 | struct window *w; | |
6398 | Lisp_Object string; | |
6399 | int pos, bufpos; | |
6400 | int region_beg, region_end; | |
6401 | int *endptr; | |
6402 | enum face_id base_face_id; | |
660ed669 | 6403 | { |
82641697 GM |
6404 | Lisp_Object prop, position, end, limit; |
6405 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6406 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6407 | struct face *base_face; | |
6408 | int multibyte_p = STRING_MULTIBYTE (string); | |
6409 | ||
6410 | /* Get the value of the face property at the current position within | |
6411 | STRING. Value is nil if there is no face property. */ | |
6412 | XSETFASTINT (position, pos); | |
6413 | prop = Fget_text_property (position, Qface, string); | |
6414 | ||
6415 | /* Get the next position at which to check for faces. Value of end | |
6416 | is nil if face is constant all the way to the end of the string. | |
6417 | Otherwise it is a string position where to check faces next. | |
6418 | Limit is the maximum position up to which to check for property | |
6419 | changes in Fnext_single_property_change. Strings are usually | |
6420 | short, so set the limit to the end of the string. */ | |
6421 | XSETFASTINT (limit, XSTRING (string)->size); | |
6422 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6423 | if (INTEGERP (end)) | |
6424 | *endptr = XFASTINT (end); | |
6425 | else | |
6426 | *endptr = -1; | |
6427 | ||
6428 | base_face = FACE_FROM_ID (f, base_face_id); | |
6429 | xassert (base_face); | |
6430 | ||
6431 | /* Optimize the default case that there is no face property and we | |
6432 | are not in the region. */ | |
6433 | if (NILP (prop) | |
6434 | && (base_face_id != DEFAULT_FACE_ID | |
6435 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6436 | that the region doesn't have to be taken into account. */ | |
6437 | || bufpos <= 0 | |
6438 | || bufpos < region_beg | |
6439 | || bufpos >= region_end) | |
6440 | && (multibyte_p | |
6441 | /* We can't realize faces for different charsets differently | |
6442 | if we don't have fonts, so we can stop here if not working | |
6443 | on a window-system frame. */ | |
6444 | || !FRAME_WINDOW_P (f) | |
6445 | || FACE_SUITABLE_FOR_CHARSET_P (base_face, -1))) | |
6446 | return base_face->id; | |
6447 | ||
6448 | /* Begin with attributes from the base face. */ | |
6449 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6450 | ||
6451 | /* Merge in attributes specified via text properties. */ | |
6452 | if (!NILP (prop)) | |
6453 | merge_face_vector_with_property (f, attrs, prop); | |
6454 | ||
6455 | /* If in the region, merge in the region face. */ | |
6456 | if (bufpos | |
6457 | && bufpos >= region_beg | |
6458 | && bufpos < region_end) | |
a8517066 | 6459 | { |
82641697 GM |
6460 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6461 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
a8517066 | 6462 | } |
660ed669 | 6463 | |
82641697 GM |
6464 | /* Look up a realized face with the given face attributes, |
6465 | or realize a new one. */ | |
6466 | return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); | |
660ed669 JB |
6467 | } |
6468 | ||
6469 | ||
c115973b | 6470 | \f |
82641697 GM |
6471 | /*********************************************************************** |
6472 | Tests | |
6473 | ***********************************************************************/ | |
c115973b | 6474 | |
82641697 | 6475 | #if GLYPH_DEBUG |
c115973b | 6476 | |
82641697 | 6477 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6478 | |
82641697 GM |
6479 | static void |
6480 | dump_realized_face (face) | |
6481 | struct face *face; | |
6482 | { | |
6483 | fprintf (stderr, "ID: %d\n", face->id); | |
6484 | #ifdef HAVE_X_WINDOWS | |
6485 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6486 | #endif | |
6487 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6488 | face->foreground, | |
6489 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6490 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6491 | face->background, | |
6492 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6493 | fprintf (stderr, "font_name: %s (%s)\n", | |
6494 | face->font_name, | |
6495 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6496 | #ifdef HAVE_X_WINDOWS | |
6497 | fprintf (stderr, "font = %p\n", face->font); | |
6498 | #endif | |
6499 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6500 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6501 | fprintf (stderr, "underline: %d (%s)\n", | |
6502 | face->underline_p, | |
6503 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6504 | fprintf (stderr, "hash: %d\n", face->hash); | |
6505 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6506 | } |
6507 | ||
6508 | ||
82641697 GM |
6509 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6510 | (n) | |
6511 | Lisp_Object n; | |
c115973b | 6512 | { |
82641697 | 6513 | if (NILP (n)) |
c115973b | 6514 | { |
82641697 GM |
6515 | int i; |
6516 | ||
6517 | fprintf (stderr, "font selection order: "); | |
6518 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6519 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6520 | fprintf (stderr, "\n"); | |
6521 | ||
6522 | fprintf (stderr, "alternative fonts: "); | |
6523 | debug_print (Vface_alternative_font_family_alist); | |
6524 | fprintf (stderr, "\n"); | |
6525 | ||
c0617987 | 6526 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6527 | Fdump_face (make_number (i)); |
c115973b JB |
6528 | } |
6529 | else | |
f5e278c7 | 6530 | { |
82641697 GM |
6531 | struct face *face; |
6532 | CHECK_NUMBER (n, 0); | |
c0617987 | 6533 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6534 | if (face == NULL) |
6535 | error ("Not a valid face"); | |
6536 | dump_realized_face (face); | |
f5e278c7 | 6537 | } |
82641697 | 6538 | |
c115973b JB |
6539 | return Qnil; |
6540 | } | |
b5c53576 | 6541 | |
b5c53576 | 6542 | |
82641697 GM |
6543 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6544 | 0, 0, 0, "") | |
6545 | () | |
b5c53576 | 6546 | { |
82641697 GM |
6547 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6548 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6549 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6550 | return Qnil; | |
b5c53576 RS |
6551 | } |
6552 | ||
82641697 GM |
6553 | #endif /* GLYPH_DEBUG != 0 */ |
6554 | ||
b5c53576 | 6555 | |
c115973b | 6556 | \f |
82641697 GM |
6557 | /*********************************************************************** |
6558 | Initialization | |
6559 | ***********************************************************************/ | |
cb637678 | 6560 | |
c115973b | 6561 | void |
f211082d | 6562 | syms_of_xfaces () |
c115973b | 6563 | { |
f211082d JB |
6564 | Qface = intern ("face"); |
6565 | staticpro (&Qface); | |
fef04523 GM |
6566 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
6567 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
6568 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6569 | staticpro (&Qframe_update_face_colors); | |
6570 | ||
82641697 GM |
6571 | /* Lisp face attribute keywords. */ |
6572 | QCfamily = intern (":family"); | |
6573 | staticpro (&QCfamily); | |
6574 | QCheight = intern (":height"); | |
6575 | staticpro (&QCheight); | |
6576 | QCweight = intern (":weight"); | |
6577 | staticpro (&QCweight); | |
6578 | QCslant = intern (":slant"); | |
6579 | staticpro (&QCslant); | |
6580 | QCunderline = intern (":underline"); | |
6581 | staticpro (&QCunderline); | |
6582 | QCinverse_video = intern (":inverse-video"); | |
6583 | staticpro (&QCinverse_video); | |
6584 | QCreverse_video = intern (":reverse-video"); | |
6585 | staticpro (&QCreverse_video); | |
6586 | QCforeground = intern (":foreground"); | |
6587 | staticpro (&QCforeground); | |
6588 | QCbackground = intern (":background"); | |
6589 | staticpro (&QCbackground); | |
6590 | QCstipple = intern (":stipple");; | |
6591 | staticpro (&QCstipple); | |
6592 | QCwidth = intern (":width"); | |
6593 | staticpro (&QCwidth); | |
6594 | QCfont = intern (":font"); | |
6595 | staticpro (&QCfont); | |
6596 | QCbold = intern (":bold"); | |
6597 | staticpro (&QCbold); | |
6598 | QCitalic = intern (":italic"); | |
6599 | staticpro (&QCitalic); | |
6600 | QCoverline = intern (":overline"); | |
6601 | staticpro (&QCoverline); | |
6602 | QCstrike_through = intern (":strike-through"); | |
6603 | staticpro (&QCstrike_through); | |
6604 | QCbox = intern (":box"); | |
6605 | staticpro (&QCbox); | |
6606 | ||
6607 | /* Symbols used for Lisp face attribute values. */ | |
6608 | QCcolor = intern (":color"); | |
6609 | staticpro (&QCcolor); | |
6610 | QCline_width = intern (":line-width"); | |
6611 | staticpro (&QCline_width); | |
6612 | QCstyle = intern (":style"); | |
6613 | staticpro (&QCstyle); | |
6614 | Qreleased_button = intern ("released-button"); | |
6615 | staticpro (&Qreleased_button); | |
6616 | Qpressed_button = intern ("pressed-button"); | |
6617 | staticpro (&Qpressed_button); | |
6618 | Qnormal = intern ("normal"); | |
6619 | staticpro (&Qnormal); | |
6620 | Qultra_light = intern ("ultra-light"); | |
6621 | staticpro (&Qultra_light); | |
6622 | Qextra_light = intern ("extra-light"); | |
6623 | staticpro (&Qextra_light); | |
6624 | Qlight = intern ("light"); | |
6625 | staticpro (&Qlight); | |
6626 | Qsemi_light = intern ("semi-light"); | |
6627 | staticpro (&Qsemi_light); | |
6628 | Qsemi_bold = intern ("semi-bold"); | |
6629 | staticpro (&Qsemi_bold); | |
6630 | Qbold = intern ("bold"); | |
6631 | staticpro (&Qbold); | |
6632 | Qextra_bold = intern ("extra-bold"); | |
6633 | staticpro (&Qextra_bold); | |
6634 | Qultra_bold = intern ("ultra-bold"); | |
6635 | staticpro (&Qultra_bold); | |
6636 | Qoblique = intern ("oblique"); | |
6637 | staticpro (&Qoblique); | |
6638 | Qitalic = intern ("italic"); | |
6639 | staticpro (&Qitalic); | |
6640 | Qreverse_oblique = intern ("reverse-oblique"); | |
6641 | staticpro (&Qreverse_oblique); | |
6642 | Qreverse_italic = intern ("reverse-italic"); | |
6643 | staticpro (&Qreverse_italic); | |
6644 | Qultra_condensed = intern ("ultra-condensed"); | |
6645 | staticpro (&Qultra_condensed); | |
6646 | Qextra_condensed = intern ("extra-condensed"); | |
6647 | staticpro (&Qextra_condensed); | |
6648 | Qcondensed = intern ("condensed"); | |
6649 | staticpro (&Qcondensed); | |
6650 | Qsemi_condensed = intern ("semi-condensed"); | |
6651 | staticpro (&Qsemi_condensed); | |
6652 | Qsemi_expanded = intern ("semi-expanded"); | |
6653 | staticpro (&Qsemi_expanded); | |
6654 | Qexpanded = intern ("expanded"); | |
6655 | staticpro (&Qexpanded); | |
6656 | Qextra_expanded = intern ("extra-expanded"); | |
6657 | staticpro (&Qextra_expanded); | |
6658 | Qultra_expanded = intern ("ultra-expanded"); | |
6659 | staticpro (&Qultra_expanded); | |
6660 | Qbackground_color = intern ("background-color"); | |
6661 | staticpro (&Qbackground_color); | |
6662 | Qforeground_color = intern ("foreground-color"); | |
6663 | staticpro (&Qforeground_color); | |
6664 | Qunspecified = intern ("unspecified"); | |
6665 | staticpro (&Qunspecified); | |
6666 | ||
6667 | Qx_charset_registry = intern ("x-charset-registry"); | |
6668 | staticpro (&Qx_charset_registry); | |
92610620 GM |
6669 | Qface_alias = intern ("face-alias"); |
6670 | staticpro (&Qface_alias); | |
82641697 GM |
6671 | Qdefault = intern ("default"); |
6672 | staticpro (&Qdefault); | |
9ea173e8 GM |
6673 | Qtool_bar = intern ("tool-bar"); |
6674 | staticpro (&Qtool_bar); | |
82641697 GM |
6675 | Qregion = intern ("region"); |
6676 | staticpro (&Qregion); | |
8bd201d6 GM |
6677 | Qfringe = intern ("fringe"); |
6678 | staticpro (&Qfringe); | |
045dee35 GM |
6679 | Qheader_line = intern ("header-line"); |
6680 | staticpro (&Qheader_line); | |
8bd201d6 GM |
6681 | Qscroll_bar = intern ("scroll-bar"); |
6682 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
6683 | Qmenu = intern ("menu"); |
6684 | staticpro (&Qmenu); | |
8bd201d6 GM |
6685 | Qcursor = intern ("cursor"); |
6686 | staticpro (&Qcursor); | |
6687 | Qborder = intern ("border"); | |
6688 | staticpro (&Qborder); | |
6689 | Qmouse = intern ("mouse"); | |
6690 | staticpro (&Qmouse); | |
2d764c78 EZ |
6691 | Qtty_color_desc = intern ("tty-color-desc"); |
6692 | staticpro (&Qtty_color_desc); | |
6693 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
6694 | staticpro (&Qtty_color_by_index); | |
82641697 GM |
6695 | |
6696 | defsubr (&Sinternal_make_lisp_face); | |
6697 | defsubr (&Sinternal_lisp_face_p); | |
6698 | defsubr (&Sinternal_set_lisp_face_attribute); | |
6699 | #ifdef HAVE_X_WINDOWS | |
6700 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); | |
6701 | defsubr (&Sface_color_gray_p); | |
6702 | defsubr (&Sface_color_supported_p); | |
6703 | #endif | |
6704 | defsubr (&Sinternal_get_lisp_face_attribute); | |
6705 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6706 | defsubr (&Sinternal_lisp_face_equal_p); | |
6707 | defsubr (&Sinternal_lisp_face_empty_p); | |
6708 | defsubr (&Sinternal_copy_lisp_face); | |
6709 | defsubr (&Sinternal_merge_in_global_face); | |
6710 | defsubr (&Sface_font); | |
6711 | defsubr (&Sframe_face_alist); | |
6712 | defsubr (&Sinternal_set_font_selection_order); | |
6713 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
6714 | #if GLYPH_DEBUG | |
6715 | defsubr (&Sdump_face); | |
6716 | defsubr (&Sshow_face_resources); | |
6717 | #endif /* GLYPH_DEBUG */ | |
6718 | defsubr (&Sclear_face_cache); | |
6719 | ||
057df17c GM |
6720 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
6721 | "*Limit for font matching.\n\ | |
6722 | If an integer > 0, font matching functions won't load more than\n\ | |
6723 | that number of fonts when searching for a matching font."); | |
6724 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
6725 | ||
82641697 GM |
6726 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
6727 | "List of global face definitions (for internal use only.)"); | |
6728 | Vface_new_frame_defaults = Qnil; | |
6729 | ||
6730 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, | |
6731 | "*Default stipple pattern used on monochrome displays.\n\ | |
6732 | This stipple pattern is used on monochrome displays\n\ | |
6733 | instead of shades of gray for a face background color.\n\ | |
6734 | See `set-face-stipple' for possible values for this variable."); | |
6735 | Vface_default_stipple = build_string ("gray3"); | |
6736 | ||
6737 | DEFVAR_LISP ("face-default-registry", &Vface_default_registry, | |
6738 | "Default registry and encoding to use.\n\ | |
6739 | This registry and encoding is used for unibyte text. It is set up\n\ | |
6740 | from the specified frame font when Emacs starts. (For internal use only.)"); | |
6741 | Vface_default_registry = Qnil; | |
6742 | ||
6743 | DEFVAR_LISP ("face-alternative-font-family-alist", | |
6744 | &Vface_alternative_font_family_alist, ""); | |
6745 | Vface_alternative_font_family_alist = Qnil; | |
6746 | ||
6747 | #if SCALABLE_FONTS | |
6748 | ||
6749 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, | |
6750 | "Allowed scalable fonts.\n\ | |
6751 | A value of nil means don't allow any scalable fonts.\n\ | |
6752 | A value of t means allow any scalable font.\n\ | |
6753 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
6754 | scaled if its name matches a regular expression in the list."); | |
6755 | Vscalable_fonts_allowed = Qnil; | |
6756 | ||
6757 | #endif /* SCALABLE_FONTS */ | |
b5c53576 | 6758 | |
87485d6f | 6759 | #ifdef HAVE_X_WINDOWS |
fef04523 | 6760 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
6761 | defsubr (&Sx_list_fonts); |
6762 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 6763 | defsubr (&Sx_family_fonts); |
82641697 GM |
6764 | defsubr (&Sx_font_family_list); |
6765 | #endif /* HAVE_X_WINDOWS */ | |
c115973b | 6766 | } |