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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
ccd04f96 | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002 |
d26d6fd9 | 3 | Free Software Foundation. |
7b7739b1 | 4 | |
c115973b JB |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 9 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
c115973b | 21 | |
82641697 GM |
22 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
23 | ||
24 | /* Faces. | |
25 | ||
26 | When using Emacs with X, the display style of characters can be | |
27 | changed by defining `faces'. Each face can specify the following | |
28 | display attributes: | |
29 | ||
39506348 | 30 | 1. Font family name. |
178c5d9c | 31 | |
82641697 GM |
32 | 2. Relative proportionate width, aka character set width or set |
33 | width (swidth), e.g. `semi-compressed'. | |
178c5d9c | 34 | |
39506348 | 35 | 3. Font height in 1/10pt. |
178c5d9c | 36 | |
82641697 | 37 | 4. Font weight, e.g. `bold'. |
178c5d9c | 38 | |
82641697 | 39 | 5. Font slant, e.g. `italic'. |
178c5d9c | 40 | |
82641697 | 41 | 6. Foreground color. |
178c5d9c | 42 | |
82641697 GM |
43 | 7. Background color. |
44 | ||
45 | 8. Whether or not characters should be underlined, and in what color. | |
46 | ||
47 | 9. Whether or not characters should be displayed in inverse video. | |
48 | ||
49 | 10. A background stipple, a bitmap. | |
50 | ||
51 | 11. Whether or not characters should be overlined, and in what color. | |
52 | ||
53 | 12. Whether or not characters should be strike-through, and in what | |
54 | color. | |
55 | ||
56 | 13. Whether or not a box should be drawn around characters, the box | |
57 | type, and, for simple boxes, in what color. | |
58 | ||
39506348 | 59 | 14. Font or fontset pattern, or nil. This is a special attribute. |
ec7a10e3 | 60 | When this attribute is specified, the face uses a font opened by |
39506348 KH |
61 | that pattern as is. In addition, all the other font-related |
62 | attributes (1st thru 5th) are generated from the opened font name. | |
63 | On the other hand, if one of the other font-related attributes are | |
64 | specified, this attribute is set to nil. In that case, the face | |
65 | doesn't inherit this attribute from the `default' face, and uses a | |
66 | font determined by the other attributes (those may be inherited | |
67 | from the `default' face). | |
68 | ||
2c20458f MB |
69 | 15. A face name or list of face names from which to inherit attributes. |
70 | ||
a08332c0 GM |
71 | 16. A specified average font width, which is invisible from Lisp, |
72 | and is used to ensure that a font specified on the command line, | |
73 | for example, can be matched exactly. | |
74 | ||
82641697 GM |
75 | Faces are frame-local by nature because Emacs allows to define the |
76 | same named face (face names are symbols) differently for different | |
77 | frames. Each frame has an alist of face definitions for all named | |
78 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
79 | with the symbol `face' in slot 0, and a slot for each of the face |
80 | attributes mentioned above. | |
82641697 GM |
81 | |
82 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
83 | definitions from this list are used to initialize faces of newly | |
84 | created frames. | |
178c5d9c | 85 | |
82641697 | 86 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
87 | have a value of `unspecified'. Faces specifying all attributes but |
88 | the 14th are called `fully-specified'. | |
82641697 GM |
89 | |
90 | ||
91 | Face merging. | |
92 | ||
93 | The display style of a given character in the text is determined by | |
94 | combining several faces. This process is called `face merging'. | |
95 | Any aspect of the display style that isn't specified by overlays or | |
96 | text properties is taken from the `default' face. Since it is made | |
97 | sure that the default face is always fully-specified, face merging | |
98 | always results in a fully-specified face. | |
99 | ||
100 | ||
101 | Face realization. | |
178c5d9c | 102 | |
82641697 GM |
103 | After all face attributes for a character have been determined by |
104 | merging faces of that character, that face is `realized'. The | |
105 | realization process maps face attributes to what is physically | |
106 | available on the system where Emacs runs. The result is a | |
107 | `realized face' in form of a struct face which is stored in the | |
108 | face cache of the frame on which it was realized. | |
109 | ||
39506348 KH |
110 | Face realization is done in the context of the character to display |
111 | because different fonts may be used for different characters. In | |
112 | other words, for characters that have different font | |
113 | specifications, different realized faces are needed to display | |
82641697 GM |
114 | them. |
115 | ||
39506348 KH |
116 | Font specification is done by fontsets. See the comment in |
117 | fontset.c for the details. In the current implementation, all ASCII | |
118 | characters share the same font in a fontset. | |
119 | ||
120 | Faces are at first realized for ASCII characters, and, at that | |
121 | time, assigned a specific realized fontset. Hereafter, we call | |
122 | such a face as `ASCII face'. When a face for a multibyte character | |
123 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
124 | that has the same attributes other than font-related ones. | |
125 | ||
ec7a10e3 | 126 | Thus, all realized face have a realized fontset. |
82641697 GM |
127 | |
128 | ||
129 | Unibyte text. | |
130 | ||
39506348 KH |
131 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
132 | font as ASCII characters. That is because it is expected that | |
133 | unibyte text users specify a font that is suitable both for ASCII | |
134 | and raw 8-bit characters. | |
135 | ||
82641697 GM |
136 | |
137 | Font selection. | |
138 | ||
139 | Font selection tries to find the best available matching font for a | |
39506348 | 140 | given (character, face) combination. |
82641697 | 141 | |
39506348 KH |
142 | If the face specifies a fontset name, that fontset determines a |
143 | pattern for fonts of the given character. If the face specifies a | |
144 | font name or the other font-related attributes, a fontset is | |
145 | realized from the default fontset. In that case, that | |
146 | specification determines a pattern for ASCII characters and the | |
147 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
148 | |
149 | Available fonts on the system on which Emacs runs are then matched | |
150 | against the font pattern. The result of font selection is the best | |
151 | match for the given face attributes in this font list. | |
152 | ||
153 | Font selection can be influenced by the user. | |
154 | ||
155 | 1. The user can specify the relative importance he gives the face | |
156 | attributes width, height, weight, and slant by setting | |
157 | face-font-selection-order (faces.el) to a list of face attribute | |
158 | names. The default is '(:width :height :weight :slant), and means | |
159 | that font selection first tries to find a good match for the font | |
160 | width specified by a face, then---within fonts with that | |
161 | width---tries to find a best match for the specified font height, | |
162 | etc. | |
163 | ||
c824bfbc | 164 | 2. Setting face-font-family-alternatives allows the user to |
82641697 GM |
165 | specify alternative font families to try if a family specified by a |
166 | face doesn't exist. | |
167 | ||
c824bfbc KH |
168 | 3. Setting face-font-registry-alternatives allows the user to |
169 | specify all alternative font registries to try for a face | |
170 | specifying a registry. | |
171 | ||
172 | 4. Setting face-ignored-fonts allows the user to ignore specific | |
173 | fonts. | |
174 | ||
82641697 | 175 | |
ec7a10e3 | 176 | Character composition. |
39506348 KH |
177 | |
178 | Usually, the realization process is already finished when Emacs | |
179 | actually reflects the desired glyph matrix on the screen. However, | |
180 | on displaying a composition (sequence of characters to be composed | |
181 | on the screen), a suitable font for the components of the | |
182 | composition is selected and realized while drawing them on the | |
183 | screen, i.e. the realization process is delayed but in principle | |
184 | the same. | |
82641697 | 185 | |
178c5d9c | 186 | |
82641697 GM |
187 | Initialization of basic faces. |
188 | ||
189 | The faces `default', `modeline' are considered `basic faces'. | |
190 | When redisplay happens the first time for a newly created frame, | |
191 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
192 | used to fill in unspecified attributes of the default face. */ | |
193 | ||
68c45bf0 | 194 | #include <config.h> |
c115973b JB |
195 | #include <sys/types.h> |
196 | #include <sys/stat.h> | |
7ee72033 | 197 | |
c115973b | 198 | #include "lisp.h" |
81b39386 | 199 | #include "character.h" |
9763806e | 200 | #include "keyboard.h" |
b5c53576 RS |
201 | #include "frame.h" |
202 | ||
f7cc6849 DL |
203 | #ifdef HAVE_WINDOW_SYSTEM |
204 | #include "fontset.h" | |
d12d0a9b GM |
205 | #endif /* HAVE_WINDOW_SYSTEM */ |
206 | ||
87485d6f | 207 | #ifdef HAVE_X_WINDOWS |
c115973b | 208 | #include "xterm.h" |
c7ae3284 GM |
209 | #ifdef USE_MOTIF |
210 | #include <Xm/Xm.h> | |
211 | #include <Xm/XmStrDefs.h> | |
212 | #endif /* USE_MOTIF */ | |
d12d0a9b | 213 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 214 | |
87485d6f MW |
215 | #ifdef MSDOS |
216 | #include "dosfns.h" | |
217 | #endif | |
82641697 | 218 | |
c3cee013 JR |
219 | #ifdef WINDOWSNT |
220 | #include "w32term.h" | |
221 | #include "fontset.h" | |
222 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
223 | code with #ifdef blocks. */ | |
9763806e | 224 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
225 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
226 | #define x_display_info w32_display_info | |
227 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
228 | #define check_x check_w32 | |
229 | #define x_list_fonts w32_list_fonts | |
230 | #define GCGraphicsExposures 0 | |
231 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
232 | not maximum as on X. Redefine here. */ | |
9763806e | 233 | #undef FONT_WIDTH |
c3cee013 | 234 | #define FONT_WIDTH FONT_MAX_WIDTH |
d12d0a9b | 235 | #endif /* WINDOWSNT */ |
c3cee013 | 236 | |
1a578e9b AC |
237 | #ifdef macintosh |
238 | #include "macterm.h" | |
239 | #define x_display_info mac_display_info | |
240 | #define check_x check_mac | |
241 | ||
242 | extern XGCValues *XCreateGC (void *, WindowPtr, unsigned long, XGCValues *); | |
243 | ||
244 | static INLINE GC | |
245 | x_create_gc (f, mask, xgcv) | |
246 | struct frame *f; | |
247 | unsigned long mask; | |
248 | XGCValues *xgcv; | |
249 | { | |
250 | GC gc; | |
251 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); | |
252 | return gc; | |
253 | } | |
254 | ||
255 | static INLINE void | |
256 | x_free_gc (f, gc) | |
257 | struct frame *f; | |
258 | GC gc; | |
259 | { | |
260 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); | |
261 | } | |
262 | #endif | |
263 | ||
c115973b | 264 | #include "buffer.h" |
f211082d | 265 | #include "dispextern.h" |
357f32fc | 266 | #include "blockinput.h" |
b6d40e46 | 267 | #include "window.h" |
bde7c500 | 268 | #include "intervals.h" |
c115973b | 269 | |
87485d6f | 270 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
271 | |
272 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
273 | time.h. On some such systems, Xos.h tries to redefine struct |
274 | timeval and struct timezone if USG is #defined while it is | |
275 | #included. */ | |
657070ac | 276 | |
82641697 | 277 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 278 | #include <time.h> |
657070ac JB |
279 | #undef USG |
280 | #include <X11/Xos.h> | |
281 | #define USG | |
e11d186d | 282 | #define __TIMEVAL__ |
82641697 GM |
283 | #else /* not XOS_NEEDS_TIME_H */ |
284 | #include <X11/Xos.h> | |
285 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 286 | |
82641697 | 287 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 288 | |
82641697 | 289 | #include <stdio.h> |
82641697 | 290 | #include <ctype.h> |
c115973b | 291 | |
82641697 | 292 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 293 | |
c660ce4e GM |
294 | /* Number of pt per inch (from the TeXbook). */ |
295 | ||
296 | #define PT_PER_INCH 72.27 | |
297 | ||
82641697 GM |
298 | /* Non-zero if face attribute ATTR is unspecified. */ |
299 | ||
300 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
301 | ||
302 | /* Value is the number of elements of VECTOR. */ | |
303 | ||
304 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
305 | ||
178c5d9c | 306 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
307 | to the copy. */ |
308 | ||
309 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 310 | |
82641697 GM |
311 | /* Make a copy of the contents of Lisp string S on the stack using |
312 | alloca. Value is a pointer to the copy. */ | |
313 | ||
314 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
315 | ||
178c5d9c | 316 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
317 | prime number). */ |
318 | ||
319 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
320 | ||
2d764c78 | 321 | /* A definition of XColor for non-X frames. */ |
ae4b4ba5 | 322 | |
2d764c78 | 323 | #ifndef HAVE_X_WINDOWS |
ae4b4ba5 GM |
324 | |
325 | typedef struct | |
326 | { | |
2d764c78 EZ |
327 | unsigned long pixel; |
328 | unsigned short red, green, blue; | |
329 | char flags; | |
330 | char pad; | |
ae4b4ba5 GM |
331 | } |
332 | XColor; | |
333 | ||
334 | #endif /* not HAVE_X_WINDOWS */ | |
2d764c78 | 335 | |
82641697 GM |
336 | /* Keyword symbols used for face attribute names. */ |
337 | ||
338 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
339 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
340 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
341 | Lisp_Object QCreverse_video; | |
2c20458f | 342 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
343 | |
344 | /* Symbols used for attribute values. */ | |
345 | ||
346 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
347 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
348 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
349 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
350 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
351 | Lisp_Object Qultra_expanded; | |
352 | Lisp_Object Qreleased_button, Qpressed_button; | |
353 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
354 | Lisp_Object Qunspecified; |
355 | ||
356 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 357 | |
92610620 GM |
358 | /* The name of the function to call when the background of the frame |
359 | has changed, frame_update_face_colors. */ | |
360 | ||
361 | Lisp_Object Qframe_update_face_colors; | |
362 | ||
82641697 GM |
363 | /* Names of basic faces. */ |
364 | ||
fb4927c4 | 365 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 366 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
039b6394 | 367 | Lisp_Object Qmode_line_inactive; |
fb4927c4 | 368 | extern Lisp_Object Qmode_line; |
8bd201d6 | 369 | |
92610620 GM |
370 | /* The symbol `face-alias'. A symbols having that property is an |
371 | alias for another face. Value of the property is the name of | |
372 | the aliased face. */ | |
373 | ||
374 | Lisp_Object Qface_alias; | |
375 | ||
8bd201d6 GM |
376 | /* Names of frame parameters related to faces. */ |
377 | ||
378 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
379 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
380 | |
381 | /* Default stipple pattern used on monochrome displays. This stipple | |
382 | pattern is used on monochrome displays instead of shades of gray | |
383 | for a face background color. See `set-face-stipple' for possible | |
384 | values for this variable. */ | |
385 | ||
386 | Lisp_Object Vface_default_stipple; | |
387 | ||
82641697 GM |
388 | /* Alist of alternative font families. Each element is of the form |
389 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
390 | try FAMILY1, then FAMILY2, ... */ | |
391 | ||
392 | Lisp_Object Vface_alternative_font_family_alist; | |
393 | ||
32fcc231 GM |
394 | /* Alist of alternative font registries. Each element is of the form |
395 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
396 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
397 | ||
398 | Lisp_Object Vface_alternative_font_registry_alist; | |
399 | ||
82641697 GM |
400 | /* Allowed scalable fonts. A value of nil means don't allow any |
401 | scalable fonts. A value of t means allow the use of any scalable | |
402 | font. Otherwise, value must be a list of regular expressions. A | |
403 | font may be scaled if its name matches a regular expression in the | |
404 | list. */ | |
405 | ||
eeffb293 | 406 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 407 | |
c824bfbc KH |
408 | /* List of regular expressions that matches names of fonts to ignore. */ |
409 | ||
410 | Lisp_Object Vface_ignored_fonts; | |
411 | ||
057df17c GM |
412 | /* Maximum number of fonts to consider in font_list. If not an |
413 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
414 | ||
415 | Lisp_Object Vfont_list_limit; | |
416 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
417 | ||
82641697 GM |
418 | /* The symbols `foreground-color' and `background-color' which can be |
419 | used as part of a `face' property. This is for compatibility with | |
420 | Emacs 20.2. */ | |
421 | ||
422 | Lisp_Object Qforeground_color, Qbackground_color; | |
423 | ||
424 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 425 | |
ff83dbb1 | 426 | Lisp_Object Qface; |
82641697 GM |
427 | extern Lisp_Object Qmouse_face; |
428 | ||
429 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
430 | ||
fef04523 | 431 | Lisp_Object Qbitmap_spec_p; |
f211082d | 432 | |
82641697 GM |
433 | /* Alist of global face definitions. Each element is of the form |
434 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
435 | is a Lisp vector of face attributes. These faces are used | |
436 | to initialize faces for new frames. */ | |
cb637678 | 437 | |
82641697 | 438 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 439 | |
82641697 | 440 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 441 | |
82641697 | 442 | static int next_lface_id; |
c115973b | 443 | |
82641697 | 444 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 445 | |
82641697 GM |
446 | static Lisp_Object *lface_id_to_name; |
447 | static int lface_id_to_name_size; | |
c115973b | 448 | |
ae4b4ba5 GM |
449 | /* TTY color-related functions (defined in tty-colors.el). */ |
450 | ||
2d764c78 | 451 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; |
82641697 | 452 | |
ae4b4ba5 GM |
453 | /* The name of the function used to compute colors on TTYs. */ |
454 | ||
455 | Lisp_Object Qtty_color_alist; | |
456 | ||
457 | /* An alist of defined terminal colors and their RGB values. */ | |
458 | ||
459 | Lisp_Object Vtty_defined_color_alist; | |
460 | ||
82641697 GM |
461 | /* Counter for calls to clear_face_cache. If this counter reaches |
462 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
463 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
464 | ||
465 | static int clear_font_table_count; | |
466 | #define CLEAR_FONT_TABLE_COUNT 100 | |
467 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
468 | ||
469 | /* Non-zero means face attributes have been changed since the last | |
470 | redisplay. Used in redisplay_internal. */ | |
471 | ||
472 | int face_change_count; | |
473 | ||
a4a76b61 GM |
474 | /* Non-zero means don't display bold text if a face's foreground |
475 | and background colors are the inverse of the default colors of the | |
476 | display. This is a kluge to suppress `bold black' foreground text | |
477 | which is hard to read on an LCD monitor. */ | |
478 | ||
479 | int tty_suppress_bold_inverse_default_colors_p; | |
480 | ||
dbc968b8 GM |
481 | /* A list of the form `((x . y))' used to avoid consing in |
482 | Finternal_set_lisp_face_attribute. */ | |
483 | ||
484 | static Lisp_Object Vparam_value_alist; | |
485 | ||
82641697 GM |
486 | /* The total number of colors currently allocated. */ |
487 | ||
488 | #if GLYPH_DEBUG | |
489 | static int ncolors_allocated; | |
490 | static int npixmaps_allocated; | |
491 | static int ngcs; | |
492 | #endif | |
493 | ||
ceeda019 GM |
494 | /* Non-zero means the definition of the `menu' face for new frames has |
495 | been changed. */ | |
496 | ||
497 | int menu_face_changed_default; | |
82641697 GM |
498 | |
499 | \f | |
500 | /* Function prototypes. */ | |
501 | ||
502 | struct font_name; | |
503 | struct table_entry; | |
504 | ||
ae4b4ba5 GM |
505 | static void map_tty_color P_ ((struct frame *, struct face *, |
506 | enum lface_attribute_index, int *)); | |
c7ae3284 | 507 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
702a1e8e | 508 | static int may_use_scalable_font_p P_ ((char *)); |
82641697 GM |
509 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
510 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 511 | int, int)); |
82641697 | 512 | static int x_face_list_fonts P_ ((struct frame *, char *, |
702a1e8e | 513 | struct font_name *, int, int)); |
82641697 | 514 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
515 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
516 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
517 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
518 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 519 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 520 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
521 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
522 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
523 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
524 | static char *build_font_name P_ ((struct font_name *)); | |
525 | static void free_font_names P_ ((struct font_name *, int)); | |
526 | static int sorted_font_list P_ ((struct frame *, char *, | |
527 | int (*cmpfn) P_ ((const void *, const void *)), | |
528 | struct font_name **)); | |
32fcc231 GM |
529 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
530 | Lisp_Object, struct font_name **)); | |
39506348 KH |
531 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
532 | Lisp_Object, struct font_name **)); | |
702a1e8e | 533 | static int try_font_list P_ ((struct frame *, Lisp_Object *, |
39506348 | 534 | Lisp_Object, Lisp_Object, struct font_name **)); |
4a529c42 GM |
535 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
536 | Lisp_Object, struct font_name **)); | |
82641697 | 537 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
538 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
539 | struct face *, int)); | |
82641697 | 540 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 541 | Lisp_Object *, int, struct face *)); |
82641697 GM |
542 | static struct face *realize_tty_face P_ ((struct face_cache *, |
543 | Lisp_Object *, int)); | |
544 | static int realize_basic_faces P_ ((struct frame *)); | |
545 | static int realize_default_face P_ ((struct frame *)); | |
546 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
547 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
548 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
549 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
550 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
551 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
552 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
82641697 GM |
553 | static void clear_face_gcs P_ ((struct face_cache *)); |
554 | static void free_face_cache P_ ((struct face_cache *)); | |
555 | static int face_numeric_weight P_ ((Lisp_Object)); | |
556 | static int face_numeric_slant P_ ((Lisp_Object)); | |
557 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 558 | static int face_fontset P_ ((Lisp_Object *)); |
81b39386 KH |
559 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, |
560 | struct face *, int)); | |
2c20458f MB |
561 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, Lisp_Object)); |
562 | static void merge_face_inheritance P_ ((struct frame *f, Lisp_Object, | |
563 | Lisp_Object *, Lisp_Object)); | |
82641697 GM |
564 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, |
565 | Lisp_Object)); | |
39506348 KH |
566 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
567 | Lisp_Object, int, int)); | |
82641697 | 568 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 569 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 | 570 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, |
2e6621ca | 571 | struct font_name *, int, int)); |
82641697 GM |
572 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
573 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
574 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
575 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
576 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
577 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
578 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
579 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
580 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
581 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
582 | int, int)); | |
583 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
584 | struct font_name *, int, |
585 | Lisp_Object)); | |
82641697 GM |
586 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
587 | struct font_name *, int)); | |
588 | ||
c3cee013 | 589 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
590 | |
591 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
592 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
593 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
594 | int (*cmpfn) P_ ((const void *, const void *)))); | |
595 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
596 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 597 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 598 | |
c3cee013 JR |
599 | #ifdef WINDOWSNT |
600 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
601 | #endif /* WINDOWSNT */ | |
602 | ||
bce72079 GM |
603 | #ifdef USE_X_TOOLKIT |
604 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
605 | |
606 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
607 | #endif /* USE_X_TOOLKIT */ |
608 | ||
c3cee013 | 609 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 610 | |
cb637678 | 611 | \f |
82641697 GM |
612 | /*********************************************************************** |
613 | Utilities | |
614 | ***********************************************************************/ | |
c115973b | 615 | |
87485d6f | 616 | #ifdef HAVE_X_WINDOWS |
cb637678 | 617 | |
a435fc2a GM |
618 | #ifdef DEBUG_X_COLORS |
619 | ||
620 | /* The following is a poor mans infrastructure for debugging X color | |
621 | allocation problems on displays with PseudoColor-8. Some X servers | |
622 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
623 | color reference counts completely so that they don't signal an | |
624 | error when a color is freed whose reference count is already 0. | |
625 | Other X servers do. To help me debug this, the following code | |
626 | implements a simple reference counting schema of its own, for a | |
627 | single display/screen. --gerd. */ | |
628 | ||
629 | /* Reference counts for pixel colors. */ | |
630 | ||
631 | int color_count[256]; | |
632 | ||
633 | /* Register color PIXEL as allocated. */ | |
634 | ||
635 | void | |
636 | register_color (pixel) | |
637 | unsigned long pixel; | |
638 | { | |
639 | xassert (pixel < 256); | |
640 | ++color_count[pixel]; | |
641 | } | |
642 | ||
643 | ||
644 | /* Register color PIXEL as deallocated. */ | |
645 | ||
646 | void | |
647 | unregister_color (pixel) | |
648 | unsigned long pixel; | |
649 | { | |
650 | xassert (pixel < 256); | |
651 | if (color_count[pixel] > 0) | |
652 | --color_count[pixel]; | |
653 | else | |
654 | abort (); | |
655 | } | |
656 | ||
657 | ||
658 | /* Register N colors from PIXELS as deallocated. */ | |
659 | ||
660 | void | |
661 | unregister_colors (pixels, n) | |
662 | unsigned long *pixels; | |
663 | int n; | |
664 | { | |
665 | int i; | |
666 | for (i = 0; i < n; ++i) | |
667 | unregister_color (pixels[i]); | |
668 | } | |
669 | ||
08dc08dc GM |
670 | |
671 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
672 | doc: /* Dump currently allocated colors to stderr. */) |
673 | () | |
08dc08dc GM |
674 | { |
675 | int i, n; | |
676 | ||
677 | fputc ('\n', stderr); | |
178c5d9c | 678 | |
08dc08dc GM |
679 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
680 | if (color_count[i]) | |
681 | { | |
682 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
683 | ++n; | |
684 | if (n % 5 == 0) | |
685 | fputc ('\n', stderr); | |
686 | else | |
687 | fputc ('\t', stderr); | |
688 | } | |
689 | ||
690 | if (n % 5 != 0) | |
691 | fputc ('\n', stderr); | |
692 | return Qnil; | |
693 | } | |
694 | ||
a435fc2a GM |
695 | #endif /* DEBUG_X_COLORS */ |
696 | ||
d12d0a9b | 697 | |
1f847cf8 GM |
698 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
699 | color values. Interrupt input must be blocked when this function | |
700 | is called. */ | |
701 | ||
702 | void | |
703 | x_free_colors (f, pixels, npixels) | |
704 | struct frame *f; | |
705 | unsigned long *pixels; | |
706 | int npixels; | |
707 | { | |
708 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
709 | ||
710 | /* If display has an immutable color map, freeing colors is not | |
711 | necessary and some servers don't allow it. So don't do it. */ | |
712 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
713 | { | |
a435fc2a | 714 | #ifdef DEBUG_X_COLORS |
08dc08dc | 715 | unregister_colors (pixels, npixels); |
a435fc2a | 716 | #endif |
513c5806 GM |
717 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
718 | pixels, npixels, 0); | |
08dc08dc GM |
719 | } |
720 | } | |
721 | ||
722 | ||
723 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
724 | color values. Interrupt input must be blocked when this function | |
725 | is called. */ | |
726 | ||
727 | void | |
728 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
729 | Display *dpy; | |
730 | Screen *screen; | |
731 | Colormap cmap; | |
732 | unsigned long *pixels; | |
733 | int npixels; | |
734 | { | |
735 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
736 | int class = dpyinfo->visual->class; | |
737 | ||
738 | /* If display has an immutable color map, freeing colors is not | |
739 | necessary and some servers don't allow it. So don't do it. */ | |
740 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
741 | { | |
a435fc2a | 742 | #ifdef DEBUG_X_COLORS |
08dc08dc | 743 | unregister_colors (pixels, npixels); |
a435fc2a | 744 | #endif |
513c5806 | 745 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
746 | } |
747 | } | |
748 | ||
08dc08dc | 749 | |
82641697 GM |
750 | /* Create and return a GC for use on frame F. GC values and mask |
751 | are given by XGCV and MASK. */ | |
752 | ||
753 | static INLINE GC | |
754 | x_create_gc (f, mask, xgcv) | |
cb637678 | 755 | struct frame *f; |
82641697 GM |
756 | unsigned long mask; |
757 | XGCValues *xgcv; | |
c115973b JB |
758 | { |
759 | GC gc; | |
82641697 GM |
760 | BLOCK_INPUT; |
761 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
762 | UNBLOCK_INPUT; | |
763 | IF_DEBUG (++ngcs); | |
764 | return gc; | |
765 | } | |
c115973b | 766 | |
42120bc7 | 767 | |
82641697 GM |
768 | /* Free GC which was used on frame F. */ |
769 | ||
770 | static INLINE void | |
771 | x_free_gc (f, gc) | |
772 | struct frame *f; | |
773 | GC gc; | |
774 | { | |
660ed669 | 775 | BLOCK_INPUT; |
82641697 GM |
776 | xassert (--ngcs >= 0); |
777 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
778 | UNBLOCK_INPUT; | |
779 | } | |
660ed669 | 780 | |
82641697 | 781 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 782 | |
c3cee013 JR |
783 | #ifdef WINDOWSNT |
784 | /* W32 emulation of GCs */ | |
785 | ||
786 | static INLINE GC | |
787 | x_create_gc (f, mask, xgcv) | |
788 | struct frame *f; | |
789 | unsigned long mask; | |
790 | XGCValues *xgcv; | |
791 | { | |
792 | GC gc; | |
793 | BLOCK_INPUT; | |
794 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
795 | UNBLOCK_INPUT; | |
796 | IF_DEBUG (++ngcs); | |
797 | return gc; | |
798 | } | |
799 | ||
800 | ||
801 | /* Free GC which was used on frame F. */ | |
802 | ||
803 | static INLINE void | |
804 | x_free_gc (f, gc) | |
805 | struct frame *f; | |
806 | GC gc; | |
807 | { | |
808 | BLOCK_INPUT; | |
809 | xassert (--ngcs >= 0); | |
810 | xfree (gc); | |
811 | UNBLOCK_INPUT; | |
812 | } | |
813 | ||
814 | #endif /* WINDOWSNT */ | |
660ed669 | 815 | |
82641697 GM |
816 | /* Like stricmp. Used to compare parts of font names which are in |
817 | ISO8859-1. */ | |
818 | ||
819 | int | |
820 | xstricmp (s1, s2) | |
821 | unsigned char *s1, *s2; | |
822 | { | |
823 | while (*s1 && *s2) | |
95887807 | 824 | { |
82641697 GM |
825 | unsigned char c1 = tolower (*s1); |
826 | unsigned char c2 = tolower (*s2); | |
827 | if (c1 != c2) | |
828 | return c1 < c2 ? -1 : 1; | |
829 | ++s1, ++s2; | |
95887807 | 830 | } |
cd0bb842 | 831 | |
82641697 GM |
832 | if (*s1 == 0) |
833 | return *s2 == 0 ? 0 : -1; | |
834 | return 1; | |
835 | } | |
660ed669 | 836 | |
660ed669 | 837 | |
82641697 | 838 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 839 | |
82641697 GM |
840 | static unsigned char * |
841 | xstrlwr (s) | |
842 | unsigned char *s; | |
843 | { | |
844 | unsigned char *p = s; | |
845 | ||
846 | for (p = s; *p; ++p) | |
847 | *p = tolower (*p); | |
848 | ||
849 | return s; | |
c115973b | 850 | } |
cb637678 | 851 | |
42120bc7 | 852 | |
82641697 GM |
853 | /* Signal `error' with message S, and additional argument ARG. */ |
854 | ||
855 | static void | |
856 | signal_error (s, arg) | |
857 | char *s; | |
858 | Lisp_Object arg; | |
42120bc7 | 859 | { |
82641697 GM |
860 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
861 | } | |
42120bc7 | 862 | |
82641697 | 863 | |
c0617987 GM |
864 | /* If FRAME is nil, return a pointer to the selected frame. |
865 | Otherwise, check that FRAME is a live frame, and return a pointer | |
866 | to it. NPARAM is the parameter number of FRAME, for | |
867 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
868 | Lisp function definitions. */ | |
82641697 GM |
869 | |
870 | static INLINE struct frame * | |
871 | frame_or_selected_frame (frame, nparam) | |
872 | Lisp_Object frame; | |
873 | int nparam; | |
874 | { | |
82641697 | 875 | if (NILP (frame)) |
c0617987 | 876 | frame = selected_frame; |
178c5d9c | 877 | |
b7826503 | 878 | CHECK_LIVE_FRAME (frame); |
c0617987 | 879 | return XFRAME (frame); |
42120bc7 | 880 | } |
82641697 | 881 | |
42120bc7 | 882 | \f |
82641697 GM |
883 | /*********************************************************************** |
884 | Frames and faces | |
885 | ***********************************************************************/ | |
cd0bb842 | 886 | |
82641697 | 887 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 888 | |
82641697 GM |
889 | void |
890 | init_frame_faces (f) | |
cb637678 | 891 | struct frame *f; |
cb637678 | 892 | { |
82641697 GM |
893 | /* Make a face cache, if F doesn't have one. */ |
894 | if (FRAME_FACE_CACHE (f) == NULL) | |
895 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 896 | |
c3cee013 | 897 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 898 | /* Make the image cache. */ |
c3cee013 | 899 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
900 | { |
901 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
902 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
903 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
904 | } | |
c3cee013 | 905 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 906 | |
178c5d9c | 907 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
908 | parameters to realize basic faces at this point. */ |
909 | #ifdef HAVE_X_WINDOWS | |
910 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
911 | #endif |
912 | #ifdef WINDOWSNT | |
913 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
82641697 GM |
914 | #endif |
915 | if (!realize_basic_faces (f)) | |
916 | abort (); | |
917 | } | |
cb637678 | 918 | |
cb637678 | 919 | |
82641697 | 920 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 921 | |
82641697 GM |
922 | void |
923 | free_frame_faces (f) | |
cb637678 | 924 | struct frame *f; |
cb637678 | 925 | { |
82641697 | 926 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 927 | |
82641697 GM |
928 | if (face_cache) |
929 | { | |
930 | free_face_cache (face_cache); | |
931 | FRAME_FACE_CACHE (f) = NULL; | |
932 | } | |
660ed669 | 933 | |
c3cee013 JR |
934 | #ifdef HAVE_WINDOW_SYSTEM |
935 | if (FRAME_WINDOW_P (f)) | |
195f798e | 936 | { |
82641697 GM |
937 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
938 | if (image_cache) | |
195f798e | 939 | { |
82641697 GM |
940 | --image_cache->refcount; |
941 | if (image_cache->refcount == 0) | |
942 | free_image_cache (f); | |
195f798e RS |
943 | } |
944 | } | |
c3cee013 | 945 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
946 | } |
947 | ||
82641697 | 948 | |
8bd201d6 GM |
949 | /* Clear face caches, and recompute basic faces for frame F. Call |
950 | this after changing frame parameters on which those faces depend, | |
951 | or when realized faces have been freed due to changing attributes | |
952 | of named faces. */ | |
82641697 GM |
953 | |
954 | void | |
955 | recompute_basic_faces (f) | |
cb637678 | 956 | struct frame *f; |
cb637678 | 957 | { |
82641697 GM |
958 | if (FRAME_FACE_CACHE (f)) |
959 | { | |
8bd201d6 | 960 | clear_face_cache (0); |
18df9369 GM |
961 | if (!realize_basic_faces (f)) |
962 | abort (); | |
82641697 GM |
963 | } |
964 | } | |
cb637678 | 965 | |
cb637678 | 966 | |
82641697 GM |
967 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
968 | try to free unused fonts, too. */ | |
cb637678 | 969 | |
adfea139 | 970 | void |
82641697 GM |
971 | clear_face_cache (clear_fonts_p) |
972 | int clear_fonts_p; | |
cb637678 | 973 | { |
c3cee013 | 974 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
975 | Lisp_Object tail, frame; |
976 | struct frame *f; | |
828e66d1 | 977 | |
82641697 GM |
978 | if (clear_fonts_p |
979 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 980 | { |
d5641fc5 GM |
981 | struct x_display_info *dpyinfo; |
982 | ||
983 | /* Fonts are common for frames on one display, i.e. on | |
984 | one X screen. */ | |
985 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
986 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
987 | clear_font_table (dpyinfo); | |
988 | ||
82641697 GM |
989 | /* From time to time see if we can unload some fonts. This also |
990 | frees all realized faces on all frames. Fonts needed by | |
991 | faces will be loaded again when faces are realized again. */ | |
992 | clear_font_table_count = 0; | |
195f798e | 993 | |
82641697 | 994 | FOR_EACH_FRAME (tail, frame) |
195f798e | 995 | { |
d5641fc5 | 996 | struct frame *f = XFRAME (frame); |
c3cee013 | 997 | if (FRAME_WINDOW_P (f) |
82641697 | 998 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 999 | free_all_realized_faces (frame); |
82641697 GM |
1000 | } |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | /* Clear GCs of realized faces. */ | |
1005 | FOR_EACH_FRAME (tail, frame) | |
1006 | { | |
1007 | f = XFRAME (frame); | |
c3cee013 | 1008 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1009 | { |
1010 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1011 | clear_image_cache (f, 0); | |
195f798e RS |
1012 | } |
1013 | } | |
828e66d1 | 1014 | } |
c3cee013 | 1015 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1016 | } |
1017 | ||
82641697 GM |
1018 | |
1019 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1020 | doc: /* Clear face caches on all frames. |
1021 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1022 | (thoroughly) | |
6a3f48c7 | 1023 | Lisp_Object thoroughly; |
cd0bb842 | 1024 | { |
6a3f48c7 | 1025 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1026 | ++face_change_count; |
1027 | ++windows_or_buffers_changed; | |
82641697 GM |
1028 | return Qnil; |
1029 | } | |
1030 | ||
1031 | ||
1032 | ||
c3cee013 | 1033 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1034 | |
1035 | ||
4cba8c0b GM |
1036 | /* Remove fonts from the font table of DPYINFO except for the default |
1037 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1038 | from time to time. */ |
82641697 GM |
1039 | |
1040 | static void | |
d5641fc5 GM |
1041 | clear_font_table (dpyinfo) |
1042 | struct x_display_info *dpyinfo; | |
82641697 | 1043 | { |
82641697 GM |
1044 | int i; |
1045 | ||
d5641fc5 | 1046 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1047 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1048 | { | |
1049 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1050 | Lisp_Object tail, frame; |
1051 | ||
1052 | /* Check if slot is already free. */ | |
1053 | if (font_info->name == NULL) | |
1054 | continue; | |
1055 | ||
1056 | /* Don't free a default font of some frame on this display. */ | |
1057 | FOR_EACH_FRAME (tail, frame) | |
1058 | { | |
1059 | struct frame *f = XFRAME (frame); | |
1060 | if (FRAME_WINDOW_P (f) | |
1061 | && FRAME_X_DISPLAY_INFO (f) == dpyinfo | |
1062 | && font_info->font == FRAME_FONT (f)) | |
1063 | break; | |
1064 | } | |
82641697 | 1065 | |
d5641fc5 | 1066 | if (!NILP (tail)) |
39506348 | 1067 | continue; |
82641697 | 1068 | |
39506348 KH |
1069 | /* Free names. */ |
1070 | if (font_info->full_name != font_info->name) | |
1071 | xfree (font_info->full_name); | |
1072 | xfree (font_info->name); | |
82641697 | 1073 | |
39506348 KH |
1074 | /* Free the font. */ |
1075 | BLOCK_INPUT; | |
c3cee013 | 1076 | #ifdef HAVE_X_WINDOWS |
39506348 | 1077 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1078 | #endif |
1079 | #ifdef WINDOWSNT | |
39506348 | 1080 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 1081 | #endif |
39506348 | 1082 | UNBLOCK_INPUT; |
82641697 | 1083 | |
39506348 KH |
1084 | /* Mark font table slot free. */ |
1085 | font_info->font = NULL; | |
1086 | font_info->name = font_info->full_name = NULL; | |
1087 | } | |
82641697 GM |
1088 | } |
1089 | ||
c3cee013 | 1090 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1091 | |
1092 | ||
1093 | \f | |
1094 | /*********************************************************************** | |
1095 | X Pixmaps | |
1096 | ***********************************************************************/ | |
1097 | ||
c3cee013 | 1098 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1099 | |
fef04523 | 1100 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1101 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1102 | A bitmap specification is either a string, a file name, or a list |
1103 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1104 | HEIGHT is its height, and DATA is a string containing the bits of | |
1105 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1106 | \(WIDTH + 7)/8 bytes. */) |
1107 | (object) | |
82641697 GM |
1108 | Lisp_Object object; |
1109 | { | |
c7ae3284 | 1110 | int pixmap_p = 0; |
178c5d9c | 1111 | |
c7ae3284 GM |
1112 | if (STRINGP (object)) |
1113 | /* If OBJECT is a string, it's a file name. */ | |
1114 | pixmap_p = 1; | |
1115 | else if (CONSP (object)) | |
1116 | { | |
1117 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1118 | HEIGHT must be integers > 0, and DATA must be string large | |
1119 | enough to hold a bitmap of the specified size. */ | |
1120 | Lisp_Object width, height, data; | |
1121 | ||
1122 | height = width = data = Qnil; | |
178c5d9c | 1123 | |
c7ae3284 GM |
1124 | if (CONSP (object)) |
1125 | { | |
1126 | width = XCAR (object); | |
1127 | object = XCDR (object); | |
1128 | if (CONSP (object)) | |
1129 | { | |
1130 | height = XCAR (object); | |
1131 | object = XCDR (object); | |
1132 | if (CONSP (object)) | |
1133 | data = XCAR (object); | |
1134 | } | |
1135 | } | |
cd0bb842 | 1136 | |
c7ae3284 GM |
1137 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1138 | { | |
1139 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1140 | / BITS_PER_CHAR); | |
6fc556fd | 1141 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1142 | pixmap_p = 1; |
1143 | } | |
1144 | } | |
1145 | ||
1146 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1147 | } |
1148 | ||
cd0bb842 | 1149 | |
82641697 GM |
1150 | /* Load a bitmap according to NAME (which is either a file name or a |
1151 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1152 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1153 | bitmap cannot be loaded, display a message saying so, and return | |
1154 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1155 | if these pointers are not null. */ | |
cd0bb842 | 1156 | |
82641697 | 1157 | static int |
cd0bb842 | 1158 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1159 | FRAME_PTR f; |
cd0bb842 RS |
1160 | Lisp_Object name; |
1161 | unsigned int *w_ptr, *h_ptr; | |
1162 | { | |
1163 | int bitmap_id; | |
1164 | Lisp_Object tem; | |
1165 | ||
1166 | if (NILP (name)) | |
82641697 | 1167 | return 0; |
cd0bb842 | 1168 | |
fef04523 | 1169 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1170 | if (NILP (tem)) |
fef04523 | 1171 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1172 | |
1173 | BLOCK_INPUT; | |
cd0bb842 RS |
1174 | if (CONSP (name)) |
1175 | { | |
1176 | /* Decode a bitmap spec into a bitmap. */ | |
1177 | ||
1178 | int h, w; | |
1179 | Lisp_Object bits; | |
1180 | ||
1181 | w = XINT (Fcar (name)); | |
1182 | h = XINT (Fcar (Fcdr (name))); | |
1183 | bits = Fcar (Fcdr (Fcdr (name))); | |
1184 | ||
1185 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
1186 | w, h); | |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | /* It must be a string -- a file name. */ | |
1191 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1192 | } | |
1193 | UNBLOCK_INPUT; | |
1194 | ||
7812a96f | 1195 | if (bitmap_id < 0) |
82641697 | 1196 | { |
1b8f7fbc | 1197 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1198 | bitmap_id = 0; |
cd0bb842 | 1199 | |
82641697 GM |
1200 | if (w_ptr) |
1201 | *w_ptr = 0; | |
1202 | if (h_ptr) | |
1203 | *h_ptr = 0; | |
1204 | } | |
1205 | else | |
1206 | { | |
1207 | #if GLYPH_DEBUG | |
1208 | ++npixmaps_allocated; | |
1209 | #endif | |
1210 | if (w_ptr) | |
1211 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1212 | ||
1213 | if (h_ptr) | |
1214 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1215 | } | |
cd0bb842 RS |
1216 | |
1217 | return bitmap_id; | |
cb637678 | 1218 | } |
87485d6f | 1219 | |
c3cee013 | 1220 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1221 | |
87485d6f | 1222 | |
82641697 GM |
1223 | \f |
1224 | /*********************************************************************** | |
1225 | Minimum font bounds | |
1226 | ***********************************************************************/ | |
1227 | ||
c3cee013 | 1228 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1229 | |
d6fc0a22 GM |
1230 | /* Update the line_height of frame F. Return non-zero if line height |
1231 | changes. */ | |
87485d6f | 1232 | |
82641697 GM |
1233 | int |
1234 | frame_update_line_height (f) | |
87485d6f | 1235 | struct frame *f; |
87485d6f | 1236 | { |
39506348 | 1237 | int line_height, changed_p; |
178c5d9c | 1238 | |
39506348 | 1239 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1240 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1241 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1242 | return changed_p; |
87485d6f MW |
1243 | } |
1244 | ||
c3cee013 | 1245 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1246 | |
1247 | \f | |
1248 | /*********************************************************************** | |
1249 | Fonts | |
1250 | ***********************************************************************/ | |
1251 | ||
c3cee013 | 1252 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1253 | |
39506348 KH |
1254 | /* Load font of face FACE which is used on frame F to display |
1255 | character C. The name of the font to load is determined by lface | |
1256 | and fontset of FACE. */ | |
82641697 GM |
1257 | |
1258 | static void | |
39506348 | 1259 | load_face_font (f, face, c) |
82641697 GM |
1260 | struct frame *f; |
1261 | struct face *face; | |
39506348 | 1262 | int c; |
87485d6f | 1263 | { |
82641697 | 1264 | struct font_info *font_info = NULL; |
39506348 | 1265 | char *font_name; |
178c5d9c | 1266 | |
82641697 | 1267 | face->font_info_id = -1; |
82641697 | 1268 | face->font = NULL; |
39506348 | 1269 | |
81b39386 KH |
1270 | font_name = choose_face_font (f, face->lface, face, c); |
1271 | ||
39506348 KH |
1272 | if (!font_name) |
1273 | return; | |
1274 | ||
82641697 | 1275 | BLOCK_INPUT; |
81b39386 | 1276 | font_info = FS_LOAD_FONT (f, font_name); |
82641697 GM |
1277 | UNBLOCK_INPUT; |
1278 | ||
1279 | if (font_info) | |
1280 | { | |
39506348 | 1281 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1282 | face->font = font_info->font; |
1283 | face->font_name = font_info->full_name; | |
39506348 | 1284 | if (face->gc) |
82641697 | 1285 | { |
39506348 KH |
1286 | x_free_gc (f, face->gc); |
1287 | face->gc = 0; | |
82641697 GM |
1288 | } |
1289 | } | |
39506348 | 1290 | else |
1b8f7fbc | 1291 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1292 | build_string (font_name), Qnil); |
39506348 | 1293 | xfree (font_name); |
87485d6f MW |
1294 | } |
1295 | ||
c3cee013 | 1296 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1297 | |
87485d6f | 1298 | |
82641697 GM |
1299 | \f |
1300 | /*********************************************************************** | |
1301 | X Colors | |
1302 | ***********************************************************************/ | |
1303 | ||
2d764c78 | 1304 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1305 | |
2d764c78 EZ |
1306 | int |
1307 | tty_defined_color (f, color_name, color_def, alloc) | |
1308 | struct frame *f; | |
1309 | char *color_name; | |
1310 | XColor *color_def; | |
1311 | int alloc; | |
1312 | { | |
1313 | Lisp_Object color_desc; | |
ae4b4ba5 GM |
1314 | unsigned long color_idx = FACE_TTY_DEFAULT_COLOR; |
1315 | unsigned long red = 0, green = 0, blue = 0; | |
2d764c78 EZ |
1316 | int status = 1; |
1317 | ||
1318 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1319 | { | |
a61c12d5 EZ |
1320 | Lisp_Object frame; |
1321 | ||
1322 | XSETFRAME (frame, f); | |
2d764c78 | 1323 | status = 0; |
a61c12d5 | 1324 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1325 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1326 | { |
1327 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1328 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1329 | { | |
1330 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1331 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1332 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1333 | } | |
1334 | status = 1; | |
1335 | } | |
a61c12d5 | 1336 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1337 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1338 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1339 | indication, since this produces the annoying "Unable to |
1340 | load color" messages in the *Messages* buffer. */ | |
1341 | status = 1; | |
1342 | } | |
f9d2fdc4 EZ |
1343 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1344 | { | |
1345 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1346 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1347 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1348 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1349 | } | |
1350 | ||
3b451f74 EZ |
1351 | if (color_idx != FACE_TTY_DEFAULT_COLOR) |
1352 | status = 1; | |
1353 | ||
3a28db80 | 1354 | color_def->pixel = color_idx; |
2d764c78 EZ |
1355 | color_def->red = red; |
1356 | color_def->green = green; | |
1357 | color_def->blue = blue; | |
1358 | ||
1359 | return status; | |
1360 | } | |
1361 | ||
08dc08dc GM |
1362 | |
1363 | /* Decide if color named COLOR_NAME is valid for the display | |
1364 | associated with the frame F; if so, return the rgb values in | |
1365 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1366 | |
1367 | This does the right thing for any type of frame. */ | |
08dc08dc | 1368 | |
2d764c78 EZ |
1369 | int |
1370 | defined_color (f, color_name, color_def, alloc) | |
1371 | struct frame *f; | |
1372 | char *color_name; | |
1373 | XColor *color_def; | |
1374 | int alloc; | |
1375 | { | |
1376 | if (!FRAME_WINDOW_P (f)) | |
1377 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1378 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1379 | else if (FRAME_X_P (f)) |
1380 | return x_defined_color (f, color_name, color_def, alloc); | |
1381 | #endif | |
1382 | #ifdef WINDOWSNT | |
1383 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1384 | return w32_defined_color (f, color_name, color_def, alloc); |
1385 | #endif | |
1386 | #ifdef macintosh | |
1387 | else if (FRAME_MAC_P (f)) | |
2d764c78 EZ |
1388 | return mac_defined_color (f, color_name, color_def, alloc); |
1389 | #endif | |
1390 | else | |
1391 | abort (); | |
1392 | } | |
1393 | ||
08dc08dc GM |
1394 | |
1395 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1396 | Lisp string. */ | |
2d764c78 EZ |
1397 | |
1398 | Lisp_Object | |
1399 | tty_color_name (f, idx) | |
1400 | struct frame *f; | |
1401 | int idx; | |
1402 | { | |
2d764c78 EZ |
1403 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1404 | { | |
a61c12d5 EZ |
1405 | Lisp_Object frame; |
1406 | Lisp_Object coldesc; | |
1407 | ||
1408 | XSETFRAME (frame, f); | |
1409 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1410 | |
1411 | if (!NILP (coldesc)) | |
1412 | return XCAR (coldesc); | |
1413 | } | |
1414 | #ifdef MSDOS | |
1415 | /* We can have an MSDOG frame under -nw for a short window of | |
1416 | opportunity before internal_terminal_init is called. DTRT. */ | |
1417 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1418 | return msdos_stdcolor_name (idx); | |
1419 | #endif | |
1420 | ||
ef917393 EZ |
1421 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1422 | return build_string (unspecified_fg); | |
1423 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1424 | return build_string (unspecified_bg); | |
c3cee013 JR |
1425 | |
1426 | #ifdef WINDOWSNT | |
1427 | return vga_stdcolor_name (idx); | |
1428 | #endif | |
1429 | ||
ef917393 | 1430 | return Qunspecified; |
2d764c78 | 1431 | } |
82641697 | 1432 | |
08dc08dc | 1433 | |
82641697 GM |
1434 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
1435 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1436 | ||
1437 | static int | |
1438 | face_color_gray_p (f, color_name) | |
1439 | struct frame *f; | |
1440 | char *color_name; | |
1441 | { | |
1442 | XColor color; | |
1443 | int gray_p; | |
1444 | ||
1445 | if (defined_color (f, color_name, &color, 0)) | |
1446 | gray_p = ((abs (color.red - color.green) | |
1447 | < max (color.red, color.green) / 20) | |
1448 | && (abs (color.green - color.blue) | |
1449 | < max (color.green, color.blue) / 20) | |
1450 | && (abs (color.blue - color.red) | |
1451 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1452 | else |
82641697 | 1453 | gray_p = 0; |
178c5d9c | 1454 | |
82641697 | 1455 | return gray_p; |
87485d6f | 1456 | } |
87485d6f | 1457 | |
cb637678 | 1458 | |
82641697 GM |
1459 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1460 | BACKGROUND_P non-zero means the color will be used as background | |
1461 | color. */ | |
1462 | ||
1463 | static int | |
1464 | face_color_supported_p (f, color_name, background_p) | |
1465 | struct frame *f; | |
1466 | char *color_name; | |
1467 | int background_p; | |
1468 | { | |
1469 | Lisp_Object frame; | |
2d764c78 | 1470 | XColor not_used; |
82641697 GM |
1471 | |
1472 | XSETFRAME (frame, f); | |
8affcced KH |
1473 | return (FRAME_WINDOW_P (f) |
1474 | ? (!NILP (Fxw_display_color_p (frame)) | |
1475 | || xstricmp (color_name, "black") == 0 | |
1476 | || xstricmp (color_name, "white") == 0 | |
1477 | || (background_p | |
1478 | && face_color_gray_p (f, color_name)) | |
1479 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1480 | && face_color_gray_p (f, color_name))) | |
1481 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1482 | } |
82641697 GM |
1483 | |
1484 | ||
da47150d | 1485 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1486 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1487 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1488 | If FRAME is nil or omitted, use the selected frame. */) |
1489 | (color, frame) | |
82641697 | 1490 | Lisp_Object color, frame; |
cb637678 | 1491 | { |
2d764c78 EZ |
1492 | struct frame *f; |
1493 | ||
b7826503 PJ |
1494 | CHECK_FRAME (frame); |
1495 | CHECK_STRING (color); | |
2d764c78 | 1496 | f = XFRAME (frame); |
82641697 GM |
1497 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1498 | } | |
660ed669 | 1499 | |
fffc2367 | 1500 | |
da47150d EZ |
1501 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1502 | Scolor_supported_p, 2, 3, 0, | |
7ee72033 | 1503 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa GM |
1504 | BACKGROUND-P non-nil means COLOR is used as a background. |
1505 | If FRAME is nil or omitted, use the selected frame. | |
7ee72033 MB |
1506 | COLOR must be a valid color name. */) |
1507 | (color, frame, background_p) | |
82641697 GM |
1508 | Lisp_Object frame, color, background_p; |
1509 | { | |
2d764c78 EZ |
1510 | struct frame *f; |
1511 | ||
b7826503 PJ |
1512 | CHECK_FRAME (frame); |
1513 | CHECK_STRING (color); | |
2d764c78 | 1514 | f = XFRAME (frame); |
82641697 GM |
1515 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1516 | return Qt; | |
1517 | return Qnil; | |
1518 | } | |
7b37f67b | 1519 | |
08dc08dc | 1520 | |
82641697 GM |
1521 | /* Load color with name NAME for use by face FACE on frame F. |
1522 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1523 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1524 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1525 | pixel color. If color cannot be loaded, display a message, and | |
1526 | return the foreground, background or underline color of F, but | |
1527 | record that fact in flags of the face so that we don't try to free | |
1528 | these colors. */ | |
1529 | ||
44747bd0 | 1530 | unsigned long |
82641697 GM |
1531 | load_color (f, face, name, target_index) |
1532 | struct frame *f; | |
1533 | struct face *face; | |
1534 | Lisp_Object name; | |
1535 | enum lface_attribute_index target_index; | |
1536 | { | |
1537 | XColor color; | |
178c5d9c | 1538 | |
82641697 GM |
1539 | xassert (STRINGP (name)); |
1540 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1541 | || target_index == LFACE_BACKGROUND_INDEX | |
1542 | || target_index == LFACE_UNDERLINE_INDEX | |
1543 | || target_index == LFACE_OVERLINE_INDEX | |
1544 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1545 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1546 | |
82641697 GM |
1547 | /* if the color map is full, defined_color will return a best match |
1548 | to the values in an existing cell. */ | |
1549 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1550 | { | |
2d764c78 | 1551 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1552 | |
82641697 | 1553 | switch (target_index) |
1120eb5e | 1554 | { |
82641697 GM |
1555 | case LFACE_FOREGROUND_INDEX: |
1556 | face->foreground_defaulted_p = 1; | |
1557 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1558 | break; | |
178c5d9c | 1559 | |
82641697 GM |
1560 | case LFACE_BACKGROUND_INDEX: |
1561 | face->background_defaulted_p = 1; | |
1562 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1563 | break; | |
178c5d9c | 1564 | |
82641697 GM |
1565 | case LFACE_UNDERLINE_INDEX: |
1566 | face->underline_defaulted_p = 1; | |
1567 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1568 | break; | |
178c5d9c | 1569 | |
82641697 GM |
1570 | case LFACE_OVERLINE_INDEX: |
1571 | face->overline_color_defaulted_p = 1; | |
1572 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1573 | break; |
178c5d9c | 1574 | |
82641697 GM |
1575 | case LFACE_STRIKE_THROUGH_INDEX: |
1576 | face->strike_through_color_defaulted_p = 1; | |
1577 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1578 | break; | |
178c5d9c | 1579 | |
82641697 GM |
1580 | case LFACE_BOX_INDEX: |
1581 | face->box_color_defaulted_p = 1; | |
1582 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1583 | break; | |
1584 | ||
1585 | default: | |
1586 | abort (); | |
1120eb5e | 1587 | } |
82641697 GM |
1588 | } |
1589 | #if GLYPH_DEBUG | |
1590 | else | |
1591 | ++ncolors_allocated; | |
1592 | #endif | |
178c5d9c | 1593 | |
82641697 GM |
1594 | return color.pixel; |
1595 | } | |
1120eb5e | 1596 | |
08dc08dc | 1597 | |
c3cee013 | 1598 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1599 | |
82641697 GM |
1600 | /* Load colors for face FACE which is used on frame F. Colors are |
1601 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1602 | of ATTRS. If the background color specified is not supported on F, | |
1603 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1604 | ||
1605 | static void | |
1606 | load_face_colors (f, face, attrs) | |
1607 | struct frame *f; | |
1608 | struct face *face; | |
1609 | Lisp_Object *attrs; | |
1610 | { | |
1611 | Lisp_Object fg, bg; | |
1612 | ||
1613 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1614 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1615 | ||
1616 | /* Swap colors if face is inverse-video. */ | |
1617 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1618 | { | |
1619 | Lisp_Object tmp; | |
1620 | tmp = fg; | |
1621 | fg = bg; | |
1622 | bg = tmp; | |
1623 | } | |
1624 | ||
1625 | /* Check for support for foreground, not for background because | |
1626 | face_color_supported_p is smart enough to know that grays are | |
1627 | "supported" as background because we are supposed to use stipple | |
1628 | for them. */ | |
1629 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1630 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1631 | { |
1632 | x_destroy_bitmap (f, face->stipple); | |
1633 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1634 | &face->pixmap_w, &face->pixmap_h); | |
1635 | } | |
82641697 | 1636 | |
be8a72f4 | 1637 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1638 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1639 | } |
1640 | ||
660ed669 | 1641 | |
82641697 | 1642 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1643 | |
cb637678 | 1644 | void |
82641697 | 1645 | unload_color (f, pixel) |
cb637678 | 1646 | struct frame *f; |
82641697 | 1647 | unsigned long pixel; |
cb637678 | 1648 | { |
c3cee013 | 1649 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1650 | if (pixel != -1) |
1651 | { | |
1652 | BLOCK_INPUT; | |
1653 | x_free_colors (f, &pixel, 1); | |
1654 | UNBLOCK_INPUT; | |
1655 | } | |
c3cee013 | 1656 | #endif |
82641697 GM |
1657 | } |
1658 | ||
1659 | ||
1660 | /* Free colors allocated for FACE. */ | |
1661 | ||
1662 | static void | |
1663 | free_face_colors (f, face) | |
1664 | struct frame *f; | |
1665 | struct face *face; | |
1666 | { | |
c3cee013 | 1667 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1668 | if (face->colors_copied_bitwise_p) |
1669 | return; | |
1670 | ||
08dc08dc | 1671 | BLOCK_INPUT; |
178c5d9c | 1672 | |
08dc08dc GM |
1673 | if (!face->foreground_defaulted_p) |
1674 | { | |
1675 | x_free_colors (f, &face->foreground, 1); | |
1676 | IF_DEBUG (--ncolors_allocated); | |
1677 | } | |
178c5d9c | 1678 | |
08dc08dc GM |
1679 | if (!face->background_defaulted_p) |
1680 | { | |
1681 | x_free_colors (f, &face->background, 1); | |
1682 | IF_DEBUG (--ncolors_allocated); | |
1683 | } | |
82641697 | 1684 | |
08dc08dc GM |
1685 | if (face->underline_p |
1686 | && !face->underline_defaulted_p) | |
1687 | { | |
1688 | x_free_colors (f, &face->underline_color, 1); | |
1689 | IF_DEBUG (--ncolors_allocated); | |
1690 | } | |
82641697 | 1691 | |
08dc08dc GM |
1692 | if (face->overline_p |
1693 | && !face->overline_color_defaulted_p) | |
1694 | { | |
1695 | x_free_colors (f, &face->overline_color, 1); | |
1696 | IF_DEBUG (--ncolors_allocated); | |
1697 | } | |
82641697 | 1698 | |
08dc08dc GM |
1699 | if (face->strike_through_p |
1700 | && !face->strike_through_color_defaulted_p) | |
1701 | { | |
1702 | x_free_colors (f, &face->strike_through_color, 1); | |
1703 | IF_DEBUG (--ncolors_allocated); | |
1704 | } | |
82641697 | 1705 | |
08dc08dc GM |
1706 | if (face->box != FACE_NO_BOX |
1707 | && !face->box_color_defaulted_p) | |
1708 | { | |
1709 | x_free_colors (f, &face->box_color, 1); | |
1710 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1711 | } |
08dc08dc GM |
1712 | |
1713 | UNBLOCK_INPUT; | |
2d764c78 | 1714 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1715 | } |
08dc08dc | 1716 | |
c3cee013 | 1717 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1718 | |
1719 | ||
1720 | \f | |
1721 | /*********************************************************************** | |
1722 | XLFD Font Names | |
1723 | ***********************************************************************/ | |
1724 | ||
1725 | /* An enumerator for each field of an XLFD font name. */ | |
1726 | ||
1727 | enum xlfd_field | |
1728 | { | |
1729 | XLFD_FOUNDRY, | |
1730 | XLFD_FAMILY, | |
1731 | XLFD_WEIGHT, | |
1732 | XLFD_SLANT, | |
1733 | XLFD_SWIDTH, | |
1734 | XLFD_ADSTYLE, | |
1735 | XLFD_PIXEL_SIZE, | |
1736 | XLFD_POINT_SIZE, | |
1737 | XLFD_RESX, | |
1738 | XLFD_RESY, | |
1739 | XLFD_SPACING, | |
1740 | XLFD_AVGWIDTH, | |
1741 | XLFD_REGISTRY, | |
1742 | XLFD_ENCODING, | |
1743 | XLFD_LAST | |
1744 | }; | |
1745 | ||
178c5d9c | 1746 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1747 | the XLFD specification. */ |
1748 | ||
1749 | enum xlfd_slant | |
1750 | { | |
1751 | XLFD_SLANT_UNKNOWN, | |
1752 | XLFD_SLANT_ROMAN, | |
1753 | XLFD_SLANT_ITALIC, | |
1754 | XLFD_SLANT_OBLIQUE, | |
1755 | XLFD_SLANT_REVERSE_ITALIC, | |
1756 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1757 | XLFD_SLANT_OTHER | |
1758 | }; | |
1759 | ||
1760 | /* Relative font weight according to XLFD documentation. */ | |
1761 | ||
1762 | enum xlfd_weight | |
1763 | { | |
1764 | XLFD_WEIGHT_UNKNOWN, | |
1765 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1766 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1767 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1768 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1769 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1770 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1771 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1772 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1773 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1774 | }; | |
1775 | ||
1776 | /* Relative proportionate width. */ | |
1777 | ||
1778 | enum xlfd_swidth | |
1779 | { | |
1780 | XLFD_SWIDTH_UNKNOWN, | |
1781 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1782 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1783 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1784 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1785 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1786 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1787 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1788 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1789 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1790 | }; | |
1791 | ||
1792 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1793 | names to numeric and symbolic values. */ | |
1794 | ||
1795 | struct table_entry | |
1796 | { | |
1797 | char *name; | |
1798 | int numeric; | |
1799 | Lisp_Object *symbol; | |
1800 | }; | |
1801 | ||
1802 | /* Table of XLFD slant names and their numeric and symbolic | |
1803 | representations. This table must be sorted by slant names in | |
1804 | ascending order. */ | |
1805 | ||
1806 | static struct table_entry slant_table[] = | |
1807 | { | |
1808 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1809 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1810 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1811 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1812 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1813 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1814 | }; | |
1815 | ||
1816 | /* Table of XLFD weight names. This table must be sorted by weight | |
1817 | names in ascending order. */ | |
1818 | ||
1819 | static struct table_entry weight_table[] = | |
1820 | { | |
1821 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1822 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1823 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1824 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1825 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1826 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1827 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1828 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1829 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1830 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1831 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1832 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1833 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1834 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1835 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1836 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1837 | }; | |
1838 | ||
1839 | /* Table of XLFD width names. This table must be sorted by width | |
1840 | names in ascending order. */ | |
1841 | ||
1842 | static struct table_entry swidth_table[] = | |
1843 | { | |
1844 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1845 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1846 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1847 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1848 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1849 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1850 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1851 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1852 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1853 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1854 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1855 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1856 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1857 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1858 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1859 | }; | |
1860 | ||
1861 | /* Structure used to hold the result of splitting font names in XLFD | |
1862 | format into their fields. */ | |
1863 | ||
1864 | struct font_name | |
1865 | { | |
1866 | /* The original name which is modified destructively by | |
1867 | split_font_name. The pointer is kept here to be able to free it | |
1868 | if it was allocated from the heap. */ | |
1869 | char *name; | |
1870 | ||
1871 | /* Font name fields. Each vector element points into `name' above. | |
1872 | Fields are NUL-terminated. */ | |
1873 | char *fields[XLFD_LAST]; | |
1874 | ||
1875 | /* Numeric values for those fields that interest us. See | |
1876 | split_font_name for which these are. */ | |
1877 | int numeric[XLFD_LAST]; | |
8e1b21a7 KH |
1878 | |
1879 | /* Lower value mean higher priority. */ | |
1880 | int registry_priority; | |
82641697 GM |
1881 | }; |
1882 | ||
1883 | /* The frame in effect when sorting font names. Set temporarily in | |
1884 | sort_fonts so that it is available in font comparison functions. */ | |
1885 | ||
1886 | static struct frame *font_frame; | |
1887 | ||
1888 | /* Order by which font selection chooses fonts. The default values | |
1889 | mean `first, find a best match for the font width, then for the | |
1890 | font height, then for weight, then for slant.' This variable can be | |
1891 | set via set-face-font-sort-order. */ | |
1892 | ||
1a578e9b | 1893 | #ifdef macintosh |
a08332c0 GM |
1894 | static int font_sort_order[4] = { |
1895 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1896 | }; | |
1a578e9b | 1897 | #else |
82641697 | 1898 | static int font_sort_order[4]; |
1a578e9b | 1899 | #endif |
82641697 GM |
1900 | |
1901 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1902 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1903 | is a pointer to the matching table entry or null if no table entry | |
1904 | matches. */ | |
1905 | ||
1906 | static struct table_entry * | |
1907 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1908 | struct table_entry *table; | |
1909 | int dim; | |
1910 | struct font_name *font; | |
1911 | int field_index; | |
1912 | { | |
1913 | /* Function split_font_name converts fields to lower-case, so there | |
1914 | is no need to use xstrlwr or xstricmp here. */ | |
1915 | char *s = font->fields[field_index]; | |
1916 | int low, mid, high, cmp; | |
1917 | ||
1918 | low = 0; | |
1919 | high = dim - 1; | |
1920 | ||
1921 | while (low <= high) | |
1922 | { | |
1923 | mid = (low + high) / 2; | |
1924 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1925 | |
82641697 GM |
1926 | if (cmp < 0) |
1927 | low = mid + 1; | |
1928 | else if (cmp > 0) | |
1929 | high = mid - 1; | |
1930 | else | |
1931 | return table + mid; | |
1932 | } | |
1933 | ||
1934 | return NULL; | |
1935 | } | |
1936 | ||
1937 | ||
1938 | /* Return a numeric representation for font name field | |
1939 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1940 | has DIM entries. Value is the numeric value found or DFLT if no | |
1941 | table entry matches. This function is used to translate weight, | |
1942 | slant, and swidth names of XLFD font names to numeric values. */ | |
1943 | ||
1944 | static INLINE int | |
1945 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1946 | struct table_entry *table; | |
1947 | int dim; | |
1948 | struct font_name *font; | |
1949 | int field_index; | |
1950 | int dflt; | |
1951 | { | |
1952 | struct table_entry *p; | |
1953 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1954 | return p ? p->numeric : dflt; | |
1955 | } | |
1956 | ||
1957 | ||
1958 | /* Return a symbolic representation for font name field | |
1959 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1960 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1961 | table entry matches. This function is used to translate weight, | |
1962 | slant, and swidth names of XLFD font names to symbols. */ | |
1963 | ||
1964 | static INLINE Lisp_Object | |
1965 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1966 | struct table_entry *table; | |
1967 | int dim; | |
1968 | struct font_name *font; | |
1969 | int field_index; | |
6fc556fd | 1970 | Lisp_Object dflt; |
82641697 GM |
1971 | { |
1972 | struct table_entry *p; | |
1973 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1974 | return p ? *p->symbol : dflt; | |
1975 | } | |
1976 | ||
1977 | ||
1978 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1979 | ||
1980 | static INLINE int | |
1981 | xlfd_numeric_slant (font) | |
1982 | struct font_name *font; | |
1983 | { | |
1984 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1985 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1986 | } | |
1987 | ||
1988 | ||
1989 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1990 | ||
1991 | static INLINE Lisp_Object | |
1992 | xlfd_symbolic_slant (font) | |
1993 | struct font_name *font; | |
1994 | { | |
1995 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1996 | font, XLFD_SLANT, Qnormal); | |
1997 | } | |
1998 | ||
1999 | ||
2000 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2001 | ||
2002 | static INLINE int | |
2003 | xlfd_numeric_weight (font) | |
2004 | struct font_name *font; | |
2005 | { | |
2006 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2007 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2008 | } | |
2009 | ||
2010 | ||
2011 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2012 | ||
2013 | static INLINE Lisp_Object | |
2014 | xlfd_symbolic_weight (font) | |
2015 | struct font_name *font; | |
2016 | { | |
2017 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2018 | font, XLFD_WEIGHT, Qnormal); | |
2019 | } | |
2020 | ||
2021 | ||
2022 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2023 | name fields are found in FONT. */ | |
2024 | ||
2025 | static INLINE int | |
2026 | xlfd_numeric_swidth (font) | |
2027 | struct font_name *font; | |
2028 | { | |
2029 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2030 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2031 | } | |
2032 | ||
2033 | ||
2034 | /* Return a symbolic value for the swidth of FONT. */ | |
2035 | ||
2036 | static INLINE Lisp_Object | |
2037 | xlfd_symbolic_swidth (font) | |
2038 | struct font_name *font; | |
2039 | { | |
2040 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2041 | font, XLFD_SWIDTH, Qnormal); | |
2042 | } | |
178c5d9c | 2043 | |
82641697 GM |
2044 | |
2045 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2046 | entries. Value is a pointer to the matching table entry or null if | |
2047 | no element of TABLE contains SYMBOL. */ | |
2048 | ||
2049 | static struct table_entry * | |
2050 | face_value (table, dim, symbol) | |
2051 | struct table_entry *table; | |
2052 | int dim; | |
2053 | Lisp_Object symbol; | |
2054 | { | |
2055 | int i; | |
2056 | ||
2057 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2058 | |
82641697 GM |
2059 | for (i = 0; i < dim; ++i) |
2060 | if (EQ (*table[i].symbol, symbol)) | |
2061 | break; | |
2062 | ||
2063 | return i < dim ? table + i : NULL; | |
2064 | } | |
2065 | ||
2066 | ||
2067 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2068 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2069 | ||
2070 | static INLINE int | |
2071 | face_numeric_value (table, dim, symbol) | |
2072 | struct table_entry *table; | |
2073 | int dim; | |
2074 | Lisp_Object symbol; | |
2075 | { | |
2076 | struct table_entry *p = face_value (table, dim, symbol); | |
2077 | return p ? p->numeric : -1; | |
2078 | } | |
2079 | ||
2080 | ||
2081 | /* Return a numeric value representing the weight specified by Lisp | |
2082 | symbol WEIGHT. Value is one of the enumerators of enum | |
2083 | xlfd_weight. */ | |
2084 | ||
2085 | static INLINE int | |
2086 | face_numeric_weight (weight) | |
2087 | Lisp_Object weight; | |
2088 | { | |
2089 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2090 | } | |
2091 | ||
2092 | ||
2093 | /* Return a numeric value representing the slant specified by Lisp | |
2094 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2095 | ||
2096 | static INLINE int | |
2097 | face_numeric_slant (slant) | |
2098 | Lisp_Object slant; | |
2099 | { | |
2100 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2101 | } | |
2102 | ||
2103 | ||
2104 | /* Return a numeric value representing the swidth specified by Lisp | |
2105 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2106 | ||
2107 | static int | |
2108 | face_numeric_swidth (width) | |
2109 | Lisp_Object width; | |
2110 | { | |
2111 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2112 | } | |
2113 | ||
2114 | ||
81b39386 KH |
2115 | Lisp_Object |
2116 | generate_ascii_font (name, ascii_spec) | |
ccd04f96 | 2117 | Lisp_Object name, ascii_spec; |
81b39386 KH |
2118 | { |
2119 | struct font_name font; | |
2120 | char *p; | |
2121 | ||
2122 | font.name = LSTRDUPA (name); | |
2123 | if (! split_font_name (NULL, &font, 0)) | |
2124 | return Qnil; | |
2125 | ||
2126 | if (STRINGP (AREF (ascii_spec, FONT_SPEC_FAMILY_INDEX))) | |
2127 | { | |
2128 | p = LSTRDUPA (AREF (ascii_spec, FONT_SPEC_FAMILY_INDEX)); | |
2129 | font.fields[XLFD_FOUNDRY] = p; | |
2130 | while (*p != '-') p++; | |
2131 | if (*p) | |
2132 | { | |
2133 | *p++ = 0; | |
2134 | font.fields[XLFD_FAMILY] = p; | |
2135 | } | |
2136 | else | |
2137 | { | |
2138 | font.fields[XLFD_FAMILY] = font.fields[XLFD_FOUNDRY]; | |
2139 | font.fields[XLFD_FOUNDRY] = "*"; | |
2140 | } | |
2141 | } | |
2142 | if (STRINGP (AREF (ascii_spec, FONT_SPEC_WEIGHT_INDEX))) | |
2143 | font.fields[XLFD_WEIGHT] | |
2144 | = XSTRING (AREF (ascii_spec, FONT_SPEC_WEIGHT_INDEX))->data; | |
2145 | if (STRINGP (AREF (ascii_spec, FONT_SPEC_SLANT_INDEX))) | |
2146 | font.fields[XLFD_SLANT] | |
2147 | = XSTRING (AREF (ascii_spec, FONT_SPEC_SLANT_INDEX))->data; | |
2148 | if (STRINGP (AREF (ascii_spec, FONT_SPEC_SWIDTH_INDEX))) | |
2149 | font.fields[XLFD_SWIDTH] | |
2150 | = XSTRING (AREF (ascii_spec, FONT_SPEC_SWIDTH_INDEX))->data; | |
2151 | if (STRINGP (AREF (ascii_spec, FONT_SPEC_ADSTYLE_INDEX))) | |
2152 | font.fields[XLFD_ADSTYLE] | |
2153 | = XSTRING (AREF (ascii_spec, FONT_SPEC_ADSTYLE_INDEX))->data; | |
2154 | p = LSTRDUPA (AREF (ascii_spec, FONT_SPEC_REGISTRY_INDEX)); | |
2155 | font.fields[XLFD_REGISTRY] = p; | |
2156 | while (*p != '-') p++; | |
2157 | if (*p) | |
2158 | *p++ = 0; | |
2159 | else | |
2160 | p = "*"; | |
2161 | font.fields[XLFD_ENCODING] = p; | |
2162 | ||
2163 | p = build_font_name (&font); | |
2164 | name = build_string (p); | |
2165 | xfree (p); | |
2166 | return name; | |
2167 | } | |
2168 | ||
2169 | ||
c3cee013 | 2170 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2171 | |
2172 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2173 | ||
2174 | static INLINE int | |
2175 | xlfd_fixed_p (font) | |
2176 | struct font_name *font; | |
2177 | { | |
2178 | /* Function split_font_name converts fields to lower-case, so there | |
2179 | is no need to use tolower here. */ | |
2180 | return *font->fields[XLFD_SPACING] != 'p'; | |
2181 | } | |
2182 | ||
2183 | ||
2184 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2185 | ||
2186 | The actual height of the font when displayed on F depends on the | |
2187 | resolution of both the font and frame. For example, a 10pt font | |
2188 | designed for a 100dpi display will display larger than 10pt on a | |
2189 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2190 | display one is using. For example, some intlfonts are available in | |
2191 | 72dpi versions, only.) | |
2192 | ||
2193 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2194 | be determined. */ | |
2195 | ||
2196 | static INLINE int | |
2197 | xlfd_point_size (f, font) | |
2198 | struct frame *f; | |
2199 | struct font_name *font; | |
2200 | { | |
2201 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2202 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2203 | double pixel; | |
82641697 GM |
2204 | int real_pt; |
2205 | ||
933b0249 GM |
2206 | if (*pixel_field == '[') |
2207 | { | |
2208 | /* The pixel size field is `[A B C D]' which specifies | |
2209 | a transformation matrix. | |
2210 | ||
2211 | A B 0 | |
2212 | C D 0 | |
2213 | 0 0 1 | |
2214 | ||
2215 | by which all glyphs of the font are transformed. The spec | |
2216 | says that s scalar value N for the pixel size is equivalent | |
2217 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2218 | char *start = pixel_field + 1, *end; | |
2219 | double matrix[4]; | |
2220 | int i; | |
2221 | ||
2222 | for (i = 0; i < 4; ++i) | |
2223 | { | |
2224 | matrix[i] = strtod (start, &end); | |
2225 | start = end; | |
2226 | } | |
2227 | ||
7eb4b061 | 2228 | pixel = matrix[3]; |
933b0249 GM |
2229 | } |
2230 | else | |
2231 | pixel = atoi (pixel_field); | |
2232 | ||
2233 | if (pixel == 0) | |
82641697 GM |
2234 | real_pt = 0; |
2235 | else | |
933b0249 | 2236 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2237 | |
2238 | return real_pt; | |
2239 | } | |
2240 | ||
2241 | ||
39506348 KH |
2242 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2243 | of frame F. This function is used to guess a point size of font | |
2244 | when only the pixel height of the font is available. */ | |
2245 | ||
2246 | static INLINE int | |
2247 | pixel_point_size (f, pixel) | |
2248 | struct frame *f; | |
2249 | int pixel; | |
2250 | { | |
2251 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2252 | double real_pt; | |
2253 | int int_pt; | |
2254 | ||
c660ce4e GM |
2255 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2256 | point size of one dot. */ | |
2257 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2258 | int_pt = real_pt + 0.5; |
2259 | ||
2260 | return int_pt; | |
2261 | } | |
2262 | ||
2263 | ||
82641697 GM |
2264 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2265 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2266 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2267 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2268 | zero if the font name doesn't have the format we expect. The | |
2269 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2270 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2271 | |
2272 | static int | |
2273 | split_font_name (f, font, numeric_p) | |
2274 | struct frame *f; | |
2275 | struct font_name *font; | |
2276 | int numeric_p; | |
2277 | { | |
2278 | int i = 0; | |
2279 | int success_p; | |
2280 | ||
2281 | if (*font->name == '-') | |
2282 | { | |
2283 | char *p = xstrlwr (font->name) + 1; | |
2284 | ||
7b16a6bf | 2285 | while (i < XLFD_LAST) |
82641697 GM |
2286 | { |
2287 | font->fields[i] = p; | |
7b16a6bf | 2288 | ++i; |
933b0249 GM |
2289 | |
2290 | /* Pixel and point size may be of the form `[....]'. For | |
2291 | BNF, see XLFD spec, chapter 4. Negative values are | |
2292 | indicated by tilde characters which we replace with | |
2293 | `-' characters, here. */ | |
2294 | if (*p == '[' | |
d5188d8c GM |
2295 | && (i - 1 == XLFD_PIXEL_SIZE |
2296 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2297 | { |
2298 | char *start, *end; | |
2299 | int j; | |
2300 | ||
2301 | for (++p; *p && *p != ']'; ++p) | |
2302 | if (*p == '~') | |
2303 | *p = '-'; | |
2304 | ||
2305 | /* Check that the matrix contains 4 floating point | |
2306 | numbers. */ | |
3849cbf4 | 2307 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2308 | j < 4; |
2309 | ++j, start = end) | |
2310 | if (strtod (start, &end) == 0 && start == end) | |
2311 | break; | |
2312 | ||
2313 | if (j < 4) | |
2314 | break; | |
2315 | } | |
178c5d9c | 2316 | |
82641697 GM |
2317 | while (*p && *p != '-') |
2318 | ++p; | |
178c5d9c | 2319 | |
82641697 GM |
2320 | if (*p != '-') |
2321 | break; | |
178c5d9c | 2322 | |
82641697 GM |
2323 | *p++ = 0; |
2324 | } | |
2325 | } | |
2326 | ||
2327 | success_p = i == XLFD_LAST; | |
2328 | ||
2329 | /* If requested, and font name was in the expected format, | |
2330 | compute numeric values for some fields. */ | |
2331 | if (numeric_p && success_p) | |
2332 | { | |
2333 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2334 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2335 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2336 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2337 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2338 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
82641697 GM |
2339 | } |
2340 | ||
8e1b21a7 KH |
2341 | /* Initialize it to zero. It will be overridden by font_list while |
2342 | trying alternate registries. */ | |
2343 | font->registry_priority = 0; | |
2344 | ||
82641697 GM |
2345 | return success_p; |
2346 | } | |
2347 | ||
2348 | ||
2349 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2350 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2351 | |
82641697 GM |
2352 | static char * |
2353 | build_font_name (font) | |
2354 | struct font_name *font; | |
2355 | { | |
2356 | int i; | |
2357 | int size = 100; | |
2358 | char *font_name = (char *) xmalloc (size); | |
2359 | int total_length = 0; | |
2360 | ||
2361 | for (i = 0; i < XLFD_LAST; ++i) | |
2362 | { | |
2363 | /* Add 1 because of the leading `-'. */ | |
2364 | int len = strlen (font->fields[i]) + 1; | |
2365 | ||
2366 | /* Reallocate font_name if necessary. Add 1 for the final | |
2367 | NUL-byte. */ | |
2368 | if (total_length + len + 1 >= size) | |
2369 | { | |
2370 | int new_size = max (2 * size, size + len + 1); | |
2371 | int sz = new_size * sizeof *font_name; | |
2372 | font_name = (char *) xrealloc (font_name, sz); | |
2373 | size = new_size; | |
2374 | } | |
2375 | ||
2376 | font_name[total_length] = '-'; | |
2377 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2378 | total_length += len; | |
2379 | } | |
2380 | ||
2381 | font_name[total_length] = 0; | |
2382 | return font_name; | |
2383 | } | |
2384 | ||
2385 | ||
2386 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2387 | itself and all `name' fields in its elements. */ | |
2388 | ||
2389 | static INLINE void | |
2390 | free_font_names (fonts, n) | |
2391 | struct font_name *fonts; | |
2392 | int n; | |
2393 | { | |
2394 | while (n) | |
2395 | xfree (fonts[--n].name); | |
2396 | xfree (fonts); | |
2397 | } | |
2398 | ||
2399 | ||
2400 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2401 | elements using qsort and comparison function CMPFN. F is the frame | |
2402 | on which the fonts will be used. The global variable font_frame | |
2403 | is temporarily set to F to make it available in CMPFN. */ | |
2404 | ||
2405 | static INLINE void | |
2406 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2407 | struct frame *f; | |
2408 | struct font_name *fonts; | |
2409 | int nfonts; | |
2410 | int (*cmpfn) P_ ((const void *, const void *)); | |
2411 | { | |
2412 | font_frame = f; | |
2413 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2414 | font_frame = NULL; | |
2415 | } | |
2416 | ||
2417 | ||
2418 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2419 | display in x_display_list. FONTS is a pointer to a vector of | |
2420 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2421 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2422 | found matching PATTERN. |
82641697 GM |
2423 | |
2424 | For all fonts found, set FONTS[i].name to the name of the font, | |
2425 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2426 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2427 | |
2428 | static int | |
702a1e8e | 2429 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p) |
82641697 GM |
2430 | struct frame *f; |
2431 | char *pattern; | |
2432 | struct font_name *fonts; | |
2433 | int nfonts, try_alternatives_p; | |
82641697 | 2434 | { |
702a1e8e | 2435 | int n, nignored; |
82641697 | 2436 | |
c3cee013 JR |
2437 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2438 | better to do it the other way around. */ | |
2439 | Lisp_Object lfonts; | |
2440 | Lisp_Object lpattern, tem; | |
2441 | ||
c3cee013 JR |
2442 | lpattern = build_string (pattern); |
2443 | ||
2444 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2445 | #ifdef WINDOWSNT |
a86110a8 | 2446 | BLOCK_INPUT; |
c3cee013 | 2447 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2448 | UNBLOCK_INPUT; |
d26d6fd9 | 2449 | #else |
702a1e8e | 2450 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2451 | #endif |
c3cee013 | 2452 | |
d26d6fd9 GM |
2453 | /* Make a copy of the font names we got from X, and |
2454 | split them into fields. */ | |
702a1e8e GM |
2455 | n = nignored = 0; |
2456 | for (tem = lfonts; CONSP (tem) && n < nfonts; tem = XCDR (tem)) | |
c3cee013 | 2457 | { |
d26d6fd9 GM |
2458 | Lisp_Object elt, tail; |
2459 | char *name = XSTRING (XCAR (tem))->data; | |
82641697 | 2460 | |
702a1e8e | 2461 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2462 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2463 | { |
d26d6fd9 GM |
2464 | elt = XCAR (tail); |
2465 | if (STRINGP (elt) | |
2466 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2467 | break; | |
2468 | } | |
2469 | if (!NILP (tail)) | |
702a1e8e GM |
2470 | { |
2471 | ++nignored; | |
2472 | continue; | |
2473 | } | |
c824bfbc | 2474 | |
d26d6fd9 GM |
2475 | /* Make a copy of the font name. */ |
2476 | fonts[n].name = xstrdup (name); | |
82641697 | 2477 | |
702a1e8e | 2478 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2479 | { |
702a1e8e GM |
2480 | if (font_scalable_p (fonts + n) |
2481 | && !may_use_scalable_font_p (name)) | |
2482 | { | |
2483 | ++nignored; | |
2484 | xfree (fonts[n].name); | |
2485 | } | |
82641697 | 2486 | else |
d26d6fd9 | 2487 | ++n; |
82641697 | 2488 | } |
d26d6fd9 | 2489 | else |
702a1e8e GM |
2490 | xfree (fonts[n].name); |
2491 | } | |
2492 | ||
82641697 GM |
2493 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2494 | if (n == 0 && try_alternatives_p) | |
2495 | { | |
2496 | Lisp_Object list = Valternate_fontname_alist; | |
2497 | ||
2498 | while (CONSP (list)) | |
2499 | { | |
2500 | Lisp_Object entry = XCAR (list); | |
2501 | if (CONSP (entry) | |
2502 | && STRINGP (XCAR (entry)) | |
2503 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2504 | break; | |
2505 | list = XCDR (list); | |
2506 | } | |
2507 | ||
2508 | if (CONSP (list)) | |
2509 | { | |
2510 | Lisp_Object patterns = XCAR (list); | |
2511 | Lisp_Object name; | |
178c5d9c | 2512 | |
82641697 GM |
2513 | while (CONSP (patterns) |
2514 | /* If list is screwed up, give up. */ | |
2515 | && (name = XCAR (patterns), | |
2516 | STRINGP (name)) | |
2517 | /* Ignore patterns equal to PATTERN because we tried that | |
2518 | already with no success. */ | |
2519 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2520 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
702a1e8e | 2521 | fonts, nfonts, 0), |
82641697 GM |
2522 | n == 0))) |
2523 | patterns = XCDR (patterns); | |
2524 | } | |
2525 | } | |
178c5d9c | 2526 | |
82641697 GM |
2527 | return n; |
2528 | } | |
178c5d9c | 2529 | |
82641697 | 2530 | |
82641697 GM |
2531 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2532 | using comparison function CMPFN. Value is the number of fonts | |
2533 | found. If value is non-zero, *FONTS is set to a vector of | |
2534 | font_name structures allocated from the heap containing matching | |
2535 | fonts. Each element of *FONTS contains a name member that is also | |
2536 | allocated from the heap. Font names in these structures are split | |
2537 | into fields. Use free_font_names to free such an array. */ | |
2538 | ||
2539 | static int | |
2540 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2541 | struct frame *f; | |
2542 | char *pattern; | |
2543 | int (*cmpfn) P_ ((const void *, const void *)); | |
2544 | struct font_name **fonts; | |
2545 | { | |
2546 | int nfonts; | |
178c5d9c | 2547 | |
82641697 | 2548 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c GM |
2549 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2550 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2551 | nfonts = XFASTINT (Vfont_list_limit); | |
178c5d9c | 2552 | |
82641697 | 2553 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
702a1e8e | 2554 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1); |
178c5d9c SS |
2555 | |
2556 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2557 | fonts were found, make sure to set *FONTS to null. */ |
2558 | if (nfonts) | |
2559 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2560 | else | |
2561 | { | |
2562 | xfree (*fonts); | |
2563 | *fonts = NULL; | |
2564 | } | |
2565 | ||
2566 | return nfonts; | |
2567 | } | |
2568 | ||
2569 | ||
2570 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2571 | strcmp. Sort order is given by the global variable | |
2572 | font_sort_order. Font names are sorted so that, everything else | |
2573 | being equal, fonts with a resolution closer to that of the frame on | |
2574 | which they are used are listed first. The global variable | |
2575 | font_frame is the frame on which we operate. */ | |
2576 | ||
2577 | static int | |
2578 | cmp_font_names (a, b) | |
2579 | const void *a, *b; | |
2580 | { | |
2581 | struct font_name *x = (struct font_name *) a; | |
2582 | struct font_name *y = (struct font_name *) b; | |
2583 | int cmp; | |
2584 | ||
2585 | /* All strings have been converted to lower-case by split_font_name, | |
2586 | so we can use strcmp here. */ | |
2587 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2588 | if (cmp == 0) | |
2589 | { | |
2590 | int i; | |
178c5d9c | 2591 | |
82641697 GM |
2592 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2593 | { | |
2594 | int j = font_sort_order[i]; | |
2595 | cmp = x->numeric[j] - y->numeric[j]; | |
2596 | } | |
2597 | ||
2598 | if (cmp == 0) | |
2599 | { | |
2600 | /* Everything else being equal, we prefer fonts with an | |
2601 | y-resolution closer to that of the frame. */ | |
2602 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2603 | int x_resy = x->numeric[XLFD_RESY]; | |
2604 | int y_resy = y->numeric[XLFD_RESY]; | |
2605 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2606 | } | |
2607 | } | |
2608 | ||
2609 | return cmp; | |
2610 | } | |
2611 | ||
2612 | ||
2613 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2614 | is non-nil list fonts matching that pattern. Otherwise, if |
2615 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2616 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2617 | structures allocated from the heap containing the fonts found. | |
2618 | Value is the number of fonts found. */ | |
82641697 GM |
2619 | |
2620 | static int | |
32fcc231 | 2621 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2622 | struct frame *f; |
39506348 | 2623 | Lisp_Object pattern, family, registry; |
82641697 GM |
2624 | struct font_name **fonts; |
2625 | { | |
39506348 KH |
2626 | char *pattern_str, *family_str, *registry_str; |
2627 | ||
2628 | if (NILP (pattern)) | |
82641697 | 2629 | { |
39506348 KH |
2630 | family_str = (NILP (family) ? "*" : (char *) XSTRING (family)->data); |
2631 | registry_str = (NILP (registry) ? "*" : (char *) XSTRING (registry)->data); | |
178c5d9c | 2632 | |
39506348 | 2633 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2634 | + strlen (registry_str) |
2635 | + 10); | |
2636 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2637 | strcat (pattern_str, family_str); | |
2638 | strcat (pattern_str, "-*-"); | |
2639 | strcat (pattern_str, registry_str); | |
2640 | if (!index (registry_str, '-')) | |
2641 | { | |
2642 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2643 | strcat (pattern_str, "-*"); | |
2644 | else | |
2645 | strcat (pattern_str, "*-*"); | |
2646 | } | |
82641697 | 2647 | } |
39506348 KH |
2648 | else |
2649 | pattern_str = (char *) XSTRING (pattern)->data; | |
178c5d9c | 2650 | |
39506348 | 2651 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2652 | } |
2653 | ||
2654 | ||
8e1b21a7 KH |
2655 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2656 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2657 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2658 | freed. */ | |
2659 | ||
2660 | static struct font_name * | |
2661 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2662 | struct font_name *fonts1, *fonts2; | |
2663 | int nfonts1, nfonts2; | |
2664 | { | |
2665 | int new_nfonts = nfonts1 + nfonts2; | |
2666 | struct font_name *new_fonts; | |
2667 | ||
2668 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2669 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2670 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2671 | xfree (fonts1); | |
2672 | xfree (fonts2); | |
2673 | return new_fonts; | |
2674 | } | |
2675 | ||
2676 | ||
32fcc231 GM |
2677 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2678 | ||
2679 | If PATTERN is non-nil list fonts matching that pattern. | |
2680 | ||
8e1b21a7 KH |
2681 | If REGISTRY is non-nil, return fonts with that registry and the |
2682 | alternative registries from Vface_alternative_font_registry_alist. | |
32fcc231 GM |
2683 | |
2684 | If REGISTRY is nil return fonts of any registry. | |
2685 | ||
2686 | Set *FONTS to a vector of font_name structures allocated from the | |
2687 | heap containing the fonts found. Value is the number of fonts | |
2688 | found. */ | |
2689 | ||
2690 | static int | |
2691 | font_list (f, pattern, family, registry, fonts) | |
2692 | struct frame *f; | |
2693 | Lisp_Object pattern, family, registry; | |
2694 | struct font_name **fonts; | |
2695 | { | |
2696 | int nfonts = font_list_1 (f, pattern, family, registry, fonts); | |
2697 | ||
8e1b21a7 | 2698 | if (!NILP (registry) |
32fcc231 GM |
2699 | && CONSP (Vface_alternative_font_registry_alist)) |
2700 | { | |
2701 | Lisp_Object alter; | |
2702 | ||
2703 | alter = Fassoc (registry, Vface_alternative_font_registry_alist); | |
2704 | if (CONSP (alter)) | |
2705 | { | |
8e1b21a7 KH |
2706 | int reg_prio, i; |
2707 | ||
2708 | for (alter = XCDR (alter), reg_prio = 1; | |
2709 | CONSP (alter); | |
2710 | alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2711 | if (STRINGP (XCAR (alter))) |
8e1b21a7 KH |
2712 | { |
2713 | int nfonts2; | |
2714 | struct font_name *fonts2; | |
2715 | ||
2716 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), | |
2717 | &fonts2); | |
2718 | for (i = 0; i < nfonts2; i++) | |
2719 | fonts2[i].registry_priority = reg_prio; | |
2720 | *fonts = (nfonts > 0 | |
2721 | ? concat_font_list (*fonts, nfonts, fonts2, nfonts2) | |
2722 | : fonts2); | |
2723 | nfonts += nfonts2; | |
2724 | } | |
32fcc231 GM |
2725 | } |
2726 | } | |
2727 | ||
2728 | return nfonts; | |
2729 | } | |
2730 | ||
2731 | ||
82641697 | 2732 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2733 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2734 | entries. */ |
2735 | ||
2736 | static void | |
2737 | remove_duplicates (list) | |
2738 | Lisp_Object list; | |
2739 | { | |
2740 | Lisp_Object tail = list; | |
178c5d9c | 2741 | |
82641697 GM |
2742 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2743 | { | |
2744 | Lisp_Object next = XCDR (tail); | |
2745 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2746 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2747 | else |
2748 | tail = XCDR (tail); | |
2749 | } | |
2750 | } | |
2751 | ||
2752 | ||
92610620 | 2753 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2754 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2755 | If FAMILY is omitted or nil, list all families. |
2756 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2757 | `?' and `*'. | |
2758 | If FRAME is omitted or nil, use the selected frame. | |
2759 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2760 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2761 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2762 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2763 | width, weight and slant of the font. These symbols are the same as for | |
2764 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2765 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2766 | giving the registry and encoding of the font. | |
2767 | The result list is sorted according to the current setting of | |
7ee72033 MB |
2768 | the face font sort order. */) |
2769 | (family, frame) | |
82641697 GM |
2770 | Lisp_Object family, frame; |
2771 | { | |
2772 | struct frame *f = check_x_frame (frame); | |
2773 | struct font_name *fonts; | |
2774 | int i, nfonts; | |
2775 | Lisp_Object result; | |
2776 | struct gcpro gcpro1; | |
82641697 | 2777 | |
39506348 | 2778 | if (!NILP (family)) |
b7826503 | 2779 | CHECK_STRING (family); |
178c5d9c | 2780 | |
82641697 GM |
2781 | result = Qnil; |
2782 | GCPRO1 (result); | |
39506348 | 2783 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2784 | for (i = nfonts - 1; i >= 0; --i) |
2785 | { | |
057df17c GM |
2786 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2787 | char *tem; | |
82641697 | 2788 | |
82641697 GM |
2789 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2790 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2791 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2792 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2793 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2794 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2795 | tem = build_font_name (fonts + i); |
2796 | ASET (v, 6, build_string (tem)); | |
2797 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2798 | fonts[i].fields[XLFD_ENCODING]); | |
2799 | ASET (v, 7, build_string (tem)); | |
2800 | xfree (tem); | |
178c5d9c | 2801 | |
82641697 | 2802 | result = Fcons (v, result); |
82641697 GM |
2803 | } |
2804 | ||
2805 | remove_duplicates (result); | |
2806 | free_font_names (fonts, nfonts); | |
2807 | UNGCPRO; | |
2808 | return result; | |
2809 | } | |
2810 | ||
2811 | ||
2812 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2813 | 0, 1, 0, | |
7ee72033 | 2814 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
2815 | If FRAME is omitted or nil, use the selected frame. |
2816 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
2817 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
2818 | are fixed-pitch. */) |
2819 | (frame) | |
82641697 GM |
2820 | Lisp_Object frame; |
2821 | { | |
2822 | struct frame *f = check_x_frame (frame); | |
2823 | int nfonts, i; | |
2824 | struct font_name *fonts; | |
2825 | Lisp_Object result; | |
2826 | struct gcpro gcpro1; | |
057df17c GM |
2827 | int count = specpdl_ptr - specpdl; |
2828 | int limit; | |
2829 | ||
2830 | /* Let's consider all fonts. Increase the limit for matching | |
2831 | fonts until we have them all. */ | |
2832 | for (limit = 500;;) | |
2833 | { | |
2834 | specbind (intern ("font-list-limit"), make_number (limit)); | |
39506348 | 2835 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); |
178c5d9c | 2836 | |
057df17c GM |
2837 | if (nfonts == limit) |
2838 | { | |
2839 | free_font_names (fonts, nfonts); | |
2840 | limit *= 2; | |
2841 | } | |
2842 | else | |
2843 | break; | |
2844 | } | |
178c5d9c | 2845 | |
82641697 GM |
2846 | result = Qnil; |
2847 | GCPRO1 (result); | |
2848 | for (i = nfonts - 1; i >= 0; --i) | |
2849 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2850 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2851 | result); | |
2852 | ||
2853 | remove_duplicates (result); | |
2854 | free_font_names (fonts, nfonts); | |
2855 | UNGCPRO; | |
057df17c | 2856 | return unbind_to (count, result); |
82641697 GM |
2857 | } |
2858 | ||
2859 | ||
2860 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 2861 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
2862 | If optional arguments FACE and FRAME are specified, return only fonts |
2863 | the same size as FACE on FRAME. | |
2864 | PATTERN is a string, perhaps with wildcard characters; | |
2865 | the * character matches any substring, and | |
2866 | the ? character matches any single character. | |
2867 | PATTERN is case-insensitive. | |
2868 | FACE is a face name--a symbol. | |
2869 | ||
2870 | The return value is a list of strings, suitable as arguments to | |
2871 | set-face-font. | |
2872 | ||
2873 | Fonts Emacs can't use may or may not be excluded | |
2874 | even if they match PATTERN and FACE. | |
2875 | The optional fourth argument MAXIMUM sets a limit on how many | |
2876 | fonts to match. The first MAXIMUM fonts are reported. | |
2877 | The optional fifth argument WIDTH, if specified, is a number of columns | |
2878 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
2879 | the WIDTH times as wide as FACE on FRAME. */) |
2880 | (pattern, face, frame, maximum, width) | |
82641697 GM |
2881 | Lisp_Object pattern, face, frame, maximum, width; |
2882 | { | |
2883 | struct frame *f; | |
2884 | int size; | |
2885 | int maxnames; | |
2886 | ||
2887 | check_x (); | |
b7826503 | 2888 | CHECK_STRING (pattern); |
178c5d9c | 2889 | |
82641697 GM |
2890 | if (NILP (maximum)) |
2891 | maxnames = 2000; | |
2892 | else | |
2893 | { | |
b7826503 | 2894 | CHECK_NATNUM (maximum); |
82641697 GM |
2895 | maxnames = XINT (maximum); |
2896 | } | |
2897 | ||
2898 | if (!NILP (width)) | |
b7826503 | 2899 | CHECK_NUMBER (width); |
82641697 GM |
2900 | |
2901 | /* We can't simply call check_x_frame because this function may be | |
2902 | called before any frame is created. */ | |
2903 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2904 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2905 | { |
2906 | /* Perhaps we have not yet created any frame. */ | |
2907 | f = NULL; | |
2908 | face = Qnil; | |
2909 | } | |
2910 | ||
2911 | /* Determine the width standard for comparison with the fonts we find. */ | |
2912 | ||
2913 | if (NILP (face)) | |
2914 | size = 0; | |
2915 | else | |
2916 | { | |
2917 | /* This is of limited utility since it works with character | |
2918 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2919 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
2920 | struct face *face = (face_id < 0 |
2921 | ? NULL | |
2922 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 2923 | |
b5de343d | 2924 | if (face && face->font) |
c3cee013 | 2925 | size = FONT_WIDTH (face->font); |
82641697 | 2926 | else |
c3cee013 | 2927 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2928 | |
2929 | if (!NILP (width)) | |
2930 | size *= XINT (width); | |
2931 | } | |
2932 | ||
2933 | { | |
2934 | Lisp_Object args[2]; | |
2935 | ||
2936 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2937 | if (f == NULL) | |
2938 | /* We don't have to check fontsets. */ | |
2939 | return args[0]; | |
2940 | args[1] = list_fontsets (f, pattern, size); | |
2941 | return Fnconc (2, args); | |
2942 | } | |
2943 | } | |
2944 | ||
c3cee013 | 2945 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2946 | |
2947 | ||
2948 | \f | |
2949 | /*********************************************************************** | |
2950 | Lisp Faces | |
2951 | ***********************************************************************/ | |
2952 | ||
a08332c0 GM |
2953 | /* Access face attributes of face LFACE, a Lisp vector. */ |
2954 | ||
2955 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
2956 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
2957 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
2958 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
2959 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
2960 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
2961 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
2962 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
2963 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
2964 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
2965 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
2966 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
2967 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
2968 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
2969 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
2970 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
82641697 GM |
2971 | |
2972 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2973 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2974 | ||
2975 | #define LFACEP(LFACE) \ | |
2976 | (VECTORP (LFACE) \ | |
2977 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 2978 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 2979 | |
178c5d9c | 2980 | |
82641697 GM |
2981 | #if GLYPH_DEBUG |
2982 | ||
2983 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2984 | ||
2985 | static void | |
2986 | check_lface_attrs (attrs) | |
2987 | Lisp_Object *attrs; | |
2988 | { | |
2989 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2990 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2991 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2992 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
a08332c0 GM |
2993 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2994 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); | |
82641697 | 2995 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
2996 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
2997 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
2998 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
2999 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
3000 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
3001 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
3002 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
3003 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
3004 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
3005 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3006 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
3007 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
3008 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3009 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3010 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3011 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3012 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
3013 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
3014 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3015 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3016 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3017 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
3018 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
3019 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
3020 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
3021 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
3022 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
3023 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
3024 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
3025 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3026 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3027 | #ifdef HAVE_WINDOW_SYSTEM |
3028 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
3029 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 3030 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3031 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
3032 | || NILP (attrs[LFACE_FONT_INDEX]) |
3033 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
3034 | #endif |
3035 | } | |
3036 | ||
3037 | ||
3038 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3039 | ||
3040 | static void | |
3041 | check_lface (lface) | |
3042 | Lisp_Object lface; | |
3043 | { | |
3044 | if (!NILP (lface)) | |
3045 | { | |
3046 | xassert (LFACEP (lface)); | |
3047 | check_lface_attrs (XVECTOR (lface)->contents); | |
3048 | } | |
3049 | } | |
3050 | ||
3051 | #else /* GLYPH_DEBUG == 0 */ | |
3052 | ||
3053 | #define check_lface_attrs(attrs) (void) 0 | |
3054 | #define check_lface(lface) (void) 0 | |
3055 | ||
3056 | #endif /* GLYPH_DEBUG == 0 */ | |
3057 | ||
3058 | ||
39506348 | 3059 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
3060 | to make it a symvol. If FACE_NAME is an alias for another face, |
3061 | return that face's name. */ | |
3062 | ||
3063 | static Lisp_Object | |
3064 | resolve_face_name (face_name) | |
3065 | Lisp_Object face_name; | |
3066 | { | |
3067 | Lisp_Object aliased; | |
178c5d9c | 3068 | |
c7ae3284 GM |
3069 | if (STRINGP (face_name)) |
3070 | face_name = intern (XSTRING (face_name)->data); | |
3071 | ||
906b3b14 | 3072 | while (SYMBOLP (face_name)) |
c7ae3284 GM |
3073 | { |
3074 | aliased = Fget (face_name, Qface_alias); | |
3075 | if (NILP (aliased)) | |
3076 | break; | |
3077 | else | |
3078 | face_name = aliased; | |
3079 | } | |
3080 | ||
3081 | return face_name; | |
3082 | } | |
3083 | ||
3084 | ||
82641697 | 3085 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3086 | return the definition for new frames. FACE_NAME may be a string or |
3087 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3088 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3089 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3090 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3091 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3092 | name. */ | |
82641697 GM |
3093 | |
3094 | static INLINE Lisp_Object | |
3095 | lface_from_face_name (f, face_name, signal_p) | |
3096 | struct frame *f; | |
3097 | Lisp_Object face_name; | |
3098 | int signal_p; | |
3099 | { | |
c7ae3284 | 3100 | Lisp_Object lface; |
82641697 | 3101 | |
c7ae3284 | 3102 | face_name = resolve_face_name (face_name); |
92610620 | 3103 | |
82641697 GM |
3104 | if (f) |
3105 | lface = assq_no_quit (face_name, f->face_alist); | |
3106 | else | |
3107 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3108 | ||
3109 | if (CONSP (lface)) | |
3110 | lface = XCDR (lface); | |
3111 | else if (signal_p) | |
3112 | signal_error ("Invalid face", face_name); | |
3113 | ||
3114 | check_lface (lface); | |
3115 | return lface; | |
3116 | } | |
3117 | ||
3118 | ||
3119 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3120 | frame F. Store the resulting attributes in ATTRS which must point | |
3121 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3122 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3123 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3124 | ||
3125 | static INLINE int | |
3126 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3127 | struct frame *f; | |
3128 | Lisp_Object face_name; | |
3129 | Lisp_Object *attrs; | |
3130 | int signal_p; | |
3131 | { | |
3132 | Lisp_Object lface; | |
3133 | int success_p; | |
3134 | ||
3135 | lface = lface_from_face_name (f, face_name, signal_p); | |
3136 | if (!NILP (lface)) | |
3137 | { | |
3138 | bcopy (XVECTOR (lface)->contents, attrs, | |
3139 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3140 | success_p = 1; | |
3141 | } | |
3142 | else | |
3143 | success_p = 0; | |
3144 | ||
3145 | return success_p; | |
3146 | } | |
3147 | ||
3148 | ||
3149 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3150 | specified, i.e. are non-nil. */ | |
3151 | ||
3152 | static int | |
3153 | lface_fully_specified_p (attrs) | |
3154 | Lisp_Object *attrs; | |
3155 | { | |
3156 | int i; | |
3157 | ||
3158 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 GM |
3159 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
3160 | && i != LFACE_AVGWIDTH_INDEX) | |
6288c62f GM |
3161 | if (UNSPECIFIEDP (attrs[i])) |
3162 | break; | |
82641697 GM |
3163 | |
3164 | return i == LFACE_VECTOR_SIZE; | |
3165 | } | |
3166 | ||
c3cee013 | 3167 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3168 | |
39506348 KH |
3169 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3170 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3171 | unspecified attributes of LFACE. The exception is `font' | |
3172 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3173 | ||
3174 | If FONTNAME is not available on frame F, | |
3175 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3176 | If the fullname is not in a valid XLFD format, | |
3177 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3178 | in LFACE and return 1. | |
3179 | Otherwise, return 1. */ | |
178c5d9c | 3180 | |
82641697 | 3181 | static int |
39506348 | 3182 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3183 | struct frame *f; |
3184 | Lisp_Object lface; | |
39506348 | 3185 | Lisp_Object fontname; |
3221576b | 3186 | int force_p, may_fail_p; |
82641697 GM |
3187 | { |
3188 | struct font_name font; | |
3189 | char *buffer; | |
3190 | int pt; | |
39506348 KH |
3191 | int have_xlfd_p; |
3192 | int fontset; | |
3193 | char *font_name = XSTRING (fontname)->data; | |
3194 | struct font_info *font_info; | |
82641697 | 3195 | |
39506348 KH |
3196 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3197 | fontset = fs_query_fontset (fontname, 0); | |
3198 | if (fontset >= 0) | |
3199 | font_name = XSTRING (fontset_ascii (fontset))->data; | |
3200 | ||
3201 | /* Check if FONT_NAME is surely available on the system. Usually | |
3202 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3203 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3204 | caching it now is not futail because we anyway load the font | |
3205 | later. */ | |
3206 | BLOCK_INPUT; | |
81b39386 | 3207 | font_info = FS_LOAD_FONT (f, font_name); |
39506348 | 3208 | UNBLOCK_INPUT; |
82641697 | 3209 | |
39506348 | 3210 | if (!font_info) |
3221576b GM |
3211 | { |
3212 | if (may_fail_p) | |
3213 | return 0; | |
39506348 | 3214 | abort (); |
3221576b | 3215 | } |
39506348 KH |
3216 | |
3217 | font.name = STRDUPA (font_info->full_name); | |
3218 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3219 | |
82641697 | 3220 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3221 | new frames would never take effect. If we couldn't get a font |
3222 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3223 | |
82641697 GM |
3224 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3225 | { | |
39506348 KH |
3226 | Lisp_Object val; |
3227 | if (have_xlfd_p) | |
3228 | { | |
3229 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3230 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3231 | + 2); | |
3232 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3233 | font.fields[XLFD_FAMILY]); | |
3234 | val = build_string (buffer); | |
3235 | } | |
3236 | else | |
3237 | val = build_string ("*"); | |
3238 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3239 | } |
3240 | ||
3241 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3242 | { | |
39506348 KH |
3243 | if (have_xlfd_p) |
3244 | pt = xlfd_point_size (f, &font); | |
3245 | else | |
3246 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3247 | xassert (pt > 0); |
3248 | LFACE_HEIGHT (lface) = make_number (pt); | |
3249 | } | |
3250 | ||
3251 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3252 | LFACE_SWIDTH (lface) |
3253 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3254 | |
a08332c0 GM |
3255 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3256 | LFACE_AVGWIDTH (lface) | |
3257 | = (have_xlfd_p | |
3258 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3259 | : Qunspecified); | |
3260 | ||
82641697 | 3261 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3262 | LFACE_WEIGHT (lface) |
3263 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3264 | |
3265 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3266 | LFACE_SLANT (lface) |
3267 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3268 | |
39506348 | 3269 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3270 | |
82641697 GM |
3271 | return 1; |
3272 | } | |
d12d0a9b | 3273 | |
c3cee013 | 3274 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3275 | |
3276 | ||
2c20458f MB |
3277 | /* Merges the face height FROM with the face height TO, and returns the |
3278 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3279 | returned instead. FROM and TO may be either absolute face heights or |
3280 | `relative' heights; the returned value is always an absolute height | |
3281 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3282 | will be protected from garbage-collection if this function makes a | |
3283 | call into lisp. */ | |
2c20458f MB |
3284 | |
3285 | Lisp_Object | |
3286 | merge_face_heights (from, to, invalid, gcpro) | |
3287 | Lisp_Object from, to, invalid, gcpro; | |
3288 | { | |
cdfaafa9 | 3289 | Lisp_Object result = invalid; |
2c20458f MB |
3290 | |
3291 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3292 | /* FROM is absolute, just use it as is. */ |
3293 | result = from; | |
3294 | else if (FLOATP (from)) | |
3295 | /* FROM is a scale, use it to adjust TO. */ | |
3296 | { | |
3297 | if (INTEGERP (to)) | |
3298 | /* relative X absolute => absolute */ | |
c319cf24 | 3299 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3300 | else if (FLOATP (to)) |
3301 | /* relative X relative => relative */ | |
3302 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
2c20458f | 3303 | } |
2c20458f | 3304 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3305 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3306 | { |
3307 | /* Call function with current height as argument. | |
3308 | From is the new height. */ | |
cdfaafa9 | 3309 | Lisp_Object args[2]; |
2c20458f MB |
3310 | struct gcpro gcpro1; |
3311 | ||
3312 | GCPRO1 (gcpro); | |
3313 | ||
3314 | args[0] = from; | |
3315 | args[1] = to; | |
cdfaafa9 | 3316 | result = safe_call (2, args); |
2c20458f MB |
3317 | |
3318 | UNGCPRO; | |
3319 | ||
cdfaafa9 MB |
3320 | /* Ensure that if TO was absolute, so is the result. */ |
3321 | if (INTEGERP (to) && !INTEGERP (result)) | |
3322 | result = invalid; | |
2c20458f MB |
3323 | } |
3324 | ||
cdfaafa9 | 3325 | return result; |
2c20458f MB |
3326 | } |
3327 | ||
3328 | ||
3329 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3330 | store the resulting attributes in TO, which must be already be |
3331 | completely specified and contain only absolute attributes. Every | |
3332 | specified attribute of FROM overrides the corresponding attribute of | |
3333 | TO; relative attributes in FROM are merged with the absolute value in | |
3334 | TO and replace it. CYCLE_CHECK is used internally to detect loops in | |
3335 | face inheritance; it should be Qnil when called from other places. */ | |
82641697 GM |
3336 | |
3337 | static INLINE void | |
2c20458f MB |
3338 | merge_face_vectors (f, from, to, cycle_check) |
3339 | struct frame *f; | |
82641697 | 3340 | Lisp_Object *from, *to; |
2c20458f | 3341 | Lisp_Object cycle_check; |
82641697 GM |
3342 | { |
3343 | int i; | |
2c20458f MB |
3344 | |
3345 | /* If FROM inherits from some other faces, merge their attributes into | |
3346 | TO before merging FROM's direct attributes. Note that an :inherit | |
3347 | attribute of `unspecified' is the same as one of nil; we never | |
3348 | merge :inherit attributes, so nil is more correct, but lots of | |
3349 | other code uses `unspecified' as a generic value for face attributes. */ | |
3350 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3351 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
3352 | merge_face_inheritance (f, from[LFACE_INHERIT_INDEX], to, cycle_check); | |
3353 | ||
87188200 MB |
3354 | /* If TO specifies a :font attribute, and FROM specifies some |
3355 | font-related attribute, we need to clear TO's :font attribute | |
3356 | (because it will be inconsistent with whatever FROM specifies, and | |
3357 | FROM takes precedence). */ | |
3358 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3359 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3360 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3361 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3362 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3363 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3364 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3365 | to[LFACE_FONT_INDEX] = Qnil; |
3366 | ||
82641697 GM |
3367 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3368 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3369 | { |
3370 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
3371 | to[i] = merge_face_heights (from[i], to[i], to[i], cycle_check); | |
3372 | else | |
3373 | to[i] = from[i]; | |
3374 | } | |
2c20458f MB |
3375 | |
3376 | /* TO is always an absolute face, which should inherit from nothing. | |
3377 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3378 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3379 | } | |
3380 | ||
6288c62f | 3381 | |
2c20458f MB |
3382 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
3383 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3384 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3385 | elements after which a cycle might be suspected; after that many | |
3386 | elements, this macro begins consing in order to keep more precise | |
3387 | track of elements. | |
3388 | ||
f0529b5b | 3389 | Returns nil if a cycle was detected, otherwise a new value for CHECK |
2c20458f MB |
3390 | that includes EL. |
3391 | ||
3392 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3393 | the caller should make sure that's ok. */ | |
6288c62f | 3394 | |
28e6fb66 GM |
3395 | #define CYCLE_CHECK(check, el, suspicious) \ |
3396 | (NILP (check) \ | |
3397 | ? make_number (0) \ | |
3398 | : (INTEGERP (check) \ | |
3399 | ? (XFASTINT (check) < (suspicious) \ | |
3400 | ? make_number (XFASTINT (check) + 1) \ | |
3401 | : Fcons (el, Qnil)) \ | |
3402 | : (!NILP (Fmemq ((el), (check))) \ | |
3403 | ? Qnil \ | |
3404 | : Fcons ((el), (check))))) | |
2c20458f | 3405 | |
87188200 MB |
3406 | |
3407 | /* Merge face attributes from the face on frame F whose name is | |
3408 | INHERITS, into the vector of face attributes TO; INHERITS may also be | |
3409 | a list of face names, in which case they are applied in order. | |
3410 | CYCLE_CHECK is used to detect loops in face inheritance. | |
3411 | Returns true if any of the inherited attributes are `font-related'. */ | |
3412 | ||
2c20458f MB |
3413 | static void |
3414 | merge_face_inheritance (f, inherit, to, cycle_check) | |
3415 | struct frame *f; | |
3416 | Lisp_Object inherit; | |
3417 | Lisp_Object *to; | |
3418 | Lisp_Object cycle_check; | |
3419 | { | |
3420 | if (SYMBOLP (inherit) && !EQ (inherit, Qunspecified)) | |
3421 | /* Inherit from the named face INHERIT. */ | |
3422 | { | |
3423 | Lisp_Object lface; | |
3424 | ||
3425 | /* Make sure we're not in an inheritance loop. */ | |
3426 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3427 | if (NILP (cycle_check)) | |
3428 | /* Cycle detected, ignore any further inheritance. */ | |
3429 | return; | |
3430 | ||
3431 | lface = lface_from_face_name (f, inherit, 0); | |
3432 | if (!NILP (lface)) | |
3433 | merge_face_vectors (f, XVECTOR (lface)->contents, to, cycle_check); | |
3434 | } | |
3435 | else if (CONSP (inherit)) | |
3436 | /* Handle a list of inherited faces by calling ourselves recursively | |
3437 | on each element. Note that we only do so for symbol elements, so | |
3438 | it's not possible to infinitely recurse. */ | |
3439 | { | |
3440 | while (CONSP (inherit)) | |
3441 | { | |
3442 | if (SYMBOLP (XCAR (inherit))) | |
3443 | merge_face_inheritance (f, XCAR (inherit), to, cycle_check); | |
3444 | ||
3445 | /* Check for a circular inheritance list. */ | |
3446 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3447 | if (NILP (cycle_check)) | |
3448 | /* Cycle detected. */ | |
3449 | break; | |
3450 | ||
3451 | inherit = XCDR (inherit); | |
3452 | } | |
3453 | } | |
82641697 GM |
3454 | } |
3455 | ||
3456 | ||
3457 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3458 | is a face property, determine the resulting face attributes on | |
3459 | frame F, and store them in TO. PROP may be a single face | |
3460 | specification or a list of such specifications. Each face | |
3461 | specification can be | |
3462 | ||
3463 | 1. A symbol or string naming a Lisp face. | |
3464 | ||
3465 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3466 | KEYWORD is a face attribute name, and value is an appropriate value | |
3467 | for that attribute. | |
3468 | ||
3469 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3470 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3471 | for compatibility with 20.2. | |
3472 | ||
3473 | Face specifications earlier in lists take precedence over later | |
3474 | specifications. */ | |
178c5d9c | 3475 | |
82641697 GM |
3476 | static void |
3477 | merge_face_vector_with_property (f, to, prop) | |
3478 | struct frame *f; | |
3479 | Lisp_Object *to; | |
3480 | Lisp_Object prop; | |
3481 | { | |
3482 | if (CONSP (prop)) | |
3483 | { | |
3484 | Lisp_Object first = XCAR (prop); | |
178c5d9c | 3485 | |
82641697 GM |
3486 | if (EQ (first, Qforeground_color) |
3487 | || EQ (first, Qbackground_color)) | |
3488 | { | |
3489 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3490 | . COLOR). COLOR must be a string. */ | |
3491 | Lisp_Object color_name = XCDR (prop); | |
3492 | Lisp_Object color = first; | |
3493 | ||
3494 | if (STRINGP (color_name)) | |
3495 | { | |
3496 | if (EQ (color, Qforeground_color)) | |
3497 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3498 | else | |
3499 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3500 | } | |
3501 | else | |
1b8f7fbc | 3502 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3503 | } |
3504 | else if (SYMBOLP (first) | |
3505 | && *XSYMBOL (first)->name->data == ':') | |
3506 | { | |
3507 | /* Assume this is the property list form. */ | |
3508 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3509 | { | |
3510 | Lisp_Object keyword = XCAR (prop); | |
3511 | Lisp_Object value = XCAR (XCDR (prop)); | |
3512 | ||
3513 | if (EQ (keyword, QCfamily)) | |
3514 | { | |
3515 | if (STRINGP (value)) | |
3516 | to[LFACE_FAMILY_INDEX] = value; | |
3517 | else | |
1a948b17 | 3518 | add_to_log ("Invalid face font family", value, Qnil); |
82641697 GM |
3519 | } |
3520 | else if (EQ (keyword, QCheight)) | |
3521 | { | |
2c20458f MB |
3522 | Lisp_Object new_height = |
3523 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], | |
3524 | Qnil, Qnil); | |
3525 | ||
3526 | if (NILP (new_height)) | |
1a948b17 | 3527 | add_to_log ("Invalid face font height", value, Qnil); |
2c20458f MB |
3528 | else |
3529 | to[LFACE_HEIGHT_INDEX] = new_height; | |
82641697 GM |
3530 | } |
3531 | else if (EQ (keyword, QCweight)) | |
3532 | { | |
3533 | if (SYMBOLP (value) | |
3534 | && face_numeric_weight (value) >= 0) | |
3535 | to[LFACE_WEIGHT_INDEX] = value; | |
3536 | else | |
1a948b17 | 3537 | add_to_log ("Invalid face weight", value, Qnil); |
82641697 GM |
3538 | } |
3539 | else if (EQ (keyword, QCslant)) | |
3540 | { | |
3541 | if (SYMBOLP (value) | |
3542 | && face_numeric_slant (value) >= 0) | |
3543 | to[LFACE_SLANT_INDEX] = value; | |
3544 | else | |
1a948b17 | 3545 | add_to_log ("Invalid face slant", value, Qnil); |
82641697 GM |
3546 | } |
3547 | else if (EQ (keyword, QCunderline)) | |
3548 | { | |
3549 | if (EQ (value, Qt) | |
3550 | || NILP (value) | |
3551 | || STRINGP (value)) | |
3552 | to[LFACE_UNDERLINE_INDEX] = value; | |
3553 | else | |
1a948b17 | 3554 | add_to_log ("Invalid face underline", value, Qnil); |
82641697 GM |
3555 | } |
3556 | else if (EQ (keyword, QCoverline)) | |
3557 | { | |
3558 | if (EQ (value, Qt) | |
3559 | || NILP (value) | |
3560 | || STRINGP (value)) | |
3561 | to[LFACE_OVERLINE_INDEX] = value; | |
3562 | else | |
1a948b17 | 3563 | add_to_log ("Invalid face overline", value, Qnil); |
82641697 GM |
3564 | } |
3565 | else if (EQ (keyword, QCstrike_through)) | |
3566 | { | |
3567 | if (EQ (value, Qt) | |
3568 | || NILP (value) | |
3569 | || STRINGP (value)) | |
3570 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3571 | else | |
1a948b17 | 3572 | add_to_log ("Invalid face strike-through", value, Qnil); |
82641697 GM |
3573 | } |
3574 | else if (EQ (keyword, QCbox)) | |
3575 | { | |
3576 | if (EQ (value, Qt)) | |
3577 | value = make_number (1); | |
3578 | if (INTEGERP (value) | |
3579 | || STRINGP (value) | |
3580 | || CONSP (value) | |
3581 | || NILP (value)) | |
3582 | to[LFACE_BOX_INDEX] = value; | |
3583 | else | |
1a948b17 | 3584 | add_to_log ("Invalid face box", value, Qnil); |
82641697 GM |
3585 | } |
3586 | else if (EQ (keyword, QCinverse_video) | |
3587 | || EQ (keyword, QCreverse_video)) | |
3588 | { | |
3589 | if (EQ (value, Qt) || NILP (value)) | |
3590 | to[LFACE_INVERSE_INDEX] = value; | |
3591 | else | |
1a948b17 | 3592 | add_to_log ("Invalid face inverse-video", value, Qnil); |
82641697 GM |
3593 | } |
3594 | else if (EQ (keyword, QCforeground)) | |
3595 | { | |
3596 | if (STRINGP (value)) | |
3597 | to[LFACE_FOREGROUND_INDEX] = value; | |
3598 | else | |
1a948b17 | 3599 | add_to_log ("Invalid face foreground", value, Qnil); |
82641697 GM |
3600 | } |
3601 | else if (EQ (keyword, QCbackground)) | |
3602 | { | |
3603 | if (STRINGP (value)) | |
3604 | to[LFACE_BACKGROUND_INDEX] = value; | |
3605 | else | |
1a948b17 | 3606 | add_to_log ("Invalid face background", value, Qnil); |
82641697 GM |
3607 | } |
3608 | else if (EQ (keyword, QCstipple)) | |
3609 | { | |
3610 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3611 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3612 | if (!NILP (pixmap_p)) |
3613 | to[LFACE_STIPPLE_INDEX] = value; | |
3614 | else | |
1a948b17 | 3615 | add_to_log ("Invalid face stipple", value, Qnil); |
82641697 GM |
3616 | #endif |
3617 | } | |
3618 | else if (EQ (keyword, QCwidth)) | |
3619 | { | |
3620 | if (SYMBOLP (value) | |
3621 | && face_numeric_swidth (value) >= 0) | |
3622 | to[LFACE_SWIDTH_INDEX] = value; | |
3623 | else | |
1a948b17 | 3624 | add_to_log ("Invalid face width", value, Qnil); |
82641697 | 3625 | } |
2c20458f MB |
3626 | else if (EQ (keyword, QCinherit)) |
3627 | { | |
3628 | if (SYMBOLP (value)) | |
3629 | to[LFACE_INHERIT_INDEX] = value; | |
3630 | else | |
3631 | { | |
3632 | Lisp_Object tail; | |
3633 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3634 | if (!SYMBOLP (XCAR (tail))) | |
3635 | break; | |
3636 | if (NILP (tail)) | |
3637 | to[LFACE_INHERIT_INDEX] = value; | |
3638 | else | |
3639 | add_to_log ("Invalid face inherit", value, Qnil); | |
3640 | } | |
3641 | } | |
82641697 | 3642 | else |
1b8f7fbc | 3643 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3644 | keyword, Qnil); |
82641697 GM |
3645 | |
3646 | prop = XCDR (XCDR (prop)); | |
3647 | } | |
3648 | } | |
3649 | else | |
3650 | { | |
3651 | /* This is a list of face specs. Specifications at the | |
3652 | beginning of the list take precedence over later | |
3653 | specifications, so we have to merge starting with the | |
3654 | last specification. */ | |
3655 | Lisp_Object next = XCDR (prop); | |
3656 | if (!NILP (next)) | |
3657 | merge_face_vector_with_property (f, to, next); | |
3658 | merge_face_vector_with_property (f, to, first); | |
3659 | } | |
3660 | } | |
3661 | else | |
3662 | { | |
3663 | /* PROP ought to be a face name. */ | |
3664 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3665 | if (NILP (lface)) | |
1b8f7fbc | 3666 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 | 3667 | else |
2c20458f | 3668 | merge_face_vectors (f, XVECTOR (lface)->contents, to, Qnil); |
82641697 GM |
3669 | } |
3670 | } | |
3671 | ||
3672 | ||
3673 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3674 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 3675 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
3676 | If FACE was not known as a face before, create a new one. |
3677 | If optional argument FRAME is specified, make a frame-local face | |
3678 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
3679 | Value is a vector of face attributes. */) |
3680 | (face, frame) | |
82641697 GM |
3681 | Lisp_Object face, frame; |
3682 | { | |
3683 | Lisp_Object global_lface, lface; | |
3684 | struct frame *f; | |
3685 | int i; | |
3686 | ||
b7826503 | 3687 | CHECK_SYMBOL (face); |
82641697 | 3688 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 3689 | |
82641697 GM |
3690 | if (!NILP (frame)) |
3691 | { | |
b7826503 | 3692 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3693 | f = XFRAME (frame); |
3694 | lface = lface_from_face_name (f, face, 0); | |
3695 | } | |
3696 | else | |
3697 | f = NULL, lface = Qnil; | |
3698 | ||
3699 | /* Add a global definition if there is none. */ | |
3700 | if (NILP (global_lface)) | |
3701 | { | |
3702 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3703 | Qunspecified); | |
a08332c0 | 3704 | AREF (global_lface, 0) = Qface; |
178c5d9c | 3705 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3706 | Vface_new_frame_defaults); |
178c5d9c | 3707 | |
82641697 GM |
3708 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3709 | face id to Lisp face is given by the vector lface_id_to_name. | |
3710 | The mapping from Lisp face to Lisp face id is given by the | |
3711 | property `face' of the Lisp face name. */ | |
3712 | if (next_lface_id == lface_id_to_name_size) | |
3713 | { | |
3714 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3715 | int sz = new_size * sizeof *lface_id_to_name; | |
3716 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3717 | lface_id_to_name_size = new_size; | |
3718 | } | |
178c5d9c | 3719 | |
82641697 GM |
3720 | lface_id_to_name[next_lface_id] = face; |
3721 | Fput (face, Qface, make_number (next_lface_id)); | |
3722 | ++next_lface_id; | |
3723 | } | |
3724 | else if (f == NULL) | |
3725 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3726 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 3727 | |
82641697 GM |
3728 | /* Add a frame-local definition. */ |
3729 | if (f) | |
3730 | { | |
3731 | if (NILP (lface)) | |
3732 | { | |
3733 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3734 | Qunspecified); | |
a08332c0 | 3735 | AREF (lface, 0) = Qface; |
82641697 GM |
3736 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
3737 | } | |
3738 | else | |
3739 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3740 | AREF (lface, i) = Qunspecified; |
82641697 GM |
3741 | } |
3742 | else | |
3743 | lface = global_lface; | |
3744 | ||
33565969 RS |
3745 | /* Changing a named face means that all realized faces depending on |
3746 | that face are invalid. Since we cannot tell which realized faces | |
3747 | depend on the face, make sure they are all removed. This is done | |
3748 | by incrementing face_change_count. The next call to | |
3749 | init_iterator will then free realized faces. */ | |
3750 | ++face_change_count; | |
3751 | ++windows_or_buffers_changed; | |
3752 | ||
82641697 GM |
3753 | xassert (LFACEP (lface)); |
3754 | check_lface (lface); | |
3755 | return lface; | |
3756 | } | |
3757 | ||
3758 | ||
3759 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3760 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 3761 | doc: /* Return non-nil if FACE names a face. |
228299fa GM |
3762 | If optional second parameter FRAME is non-nil, check for the |
3763 | existence of a frame-local face with name FACE on that frame. | |
7ee72033 MB |
3764 | Otherwise check for the existence of a global face. */) |
3765 | (face, frame) | |
82641697 GM |
3766 | Lisp_Object face, frame; |
3767 | { | |
3768 | Lisp_Object lface; | |
178c5d9c | 3769 | |
82641697 GM |
3770 | if (!NILP (frame)) |
3771 | { | |
b7826503 | 3772 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3773 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
3774 | } | |
3775 | else | |
3776 | lface = lface_from_face_name (NULL, face, 0); | |
3777 | ||
3778 | return lface; | |
3779 | } | |
3780 | ||
3781 | ||
3782 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3783 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 3784 | doc: /* Copy face FROM to TO. |
228299fa GM |
3785 | If FRAME it t, copy the global face definition of FROM to the |
3786 | global face definition of TO. Otherwise, copy the frame-local | |
3787 | definition of FROM on FRAME to the frame-local definition of TO | |
3788 | on NEW-FRAME, or FRAME if NEW-FRAME is nil. | |
3789 | ||
7ee72033 MB |
3790 | Value is TO. */) |
3791 | (from, to, frame, new_frame) | |
82641697 GM |
3792 | Lisp_Object from, to, frame, new_frame; |
3793 | { | |
3794 | Lisp_Object lface, copy; | |
178c5d9c | 3795 | |
b7826503 PJ |
3796 | CHECK_SYMBOL (from); |
3797 | CHECK_SYMBOL (to); | |
82641697 GM |
3798 | if (NILP (new_frame)) |
3799 | new_frame = frame; | |
3800 | ||
3801 | if (EQ (frame, Qt)) | |
3802 | { | |
3803 | /* Copy global definition of FROM. We don't make copies of | |
3804 | strings etc. because 20.2 didn't do it either. */ | |
3805 | lface = lface_from_face_name (NULL, from, 1); | |
3806 | copy = Finternal_make_lisp_face (to, Qnil); | |
3807 | } | |
3808 | else | |
3809 | { | |
3810 | /* Copy frame-local definition of FROM. */ | |
b7826503 PJ |
3811 | CHECK_LIVE_FRAME (frame); |
3812 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
3813 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
3814 | copy = Finternal_make_lisp_face (to, new_frame); | |
3815 | } | |
178c5d9c | 3816 | |
82641697 GM |
3817 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3818 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3819 | |
33565969 RS |
3820 | /* Changing a named face means that all realized faces depending on |
3821 | that face are invalid. Since we cannot tell which realized faces | |
3822 | depend on the face, make sure they are all removed. This is done | |
3823 | by incrementing face_change_count. The next call to | |
3824 | init_iterator will then free realized faces. */ | |
3825 | ++face_change_count; | |
3826 | ++windows_or_buffers_changed; | |
3827 | ||
82641697 GM |
3828 | return to; |
3829 | } | |
3830 | ||
3831 | ||
3832 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3833 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 3834 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
3835 | FRAME being a frame means change the face on that frame. |
3836 | FRAME nil means change the face of the selected frame. | |
3837 | FRAME t means change the default for new frames. | |
3838 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
3839 | for new frames. */) |
3840 | (face, attr, value, frame) | |
82641697 GM |
3841 | Lisp_Object face, attr, value, frame; |
3842 | { | |
3843 | Lisp_Object lface; | |
3844 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3845 | /* Set 1 if ATTR is QCfont. */ |
3846 | int font_attr_p = 0; | |
3847 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 3848 | int font_related_attr_p = 0; |
178c5d9c | 3849 | |
b7826503 PJ |
3850 | CHECK_SYMBOL (face); |
3851 | CHECK_SYMBOL (attr); | |
82641697 | 3852 | |
c7ae3284 GM |
3853 | face = resolve_face_name (face); |
3854 | ||
628436fb GM |
3855 | /* If FRAME is 0, change face on all frames, and change the |
3856 | default for new frames. */ | |
3857 | if (INTEGERP (frame) && XINT (frame) == 0) | |
3858 | { | |
3859 | Lisp_Object tail; | |
d12d0a9b | 3860 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
3861 | FOR_EACH_FRAME (tail, frame) |
3862 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 3863 | return face; |
628436fb GM |
3864 | } |
3865 | ||
82641697 GM |
3866 | /* Set lface to the Lisp attribute vector of FACE. */ |
3867 | if (EQ (frame, Qt)) | |
3868 | lface = lface_from_face_name (NULL, face, 1); | |
3869 | else | |
3870 | { | |
3871 | if (NILP (frame)) | |
c0617987 | 3872 | frame = selected_frame; |
178c5d9c | 3873 | |
b7826503 | 3874 | CHECK_LIVE_FRAME (frame); |
82641697 | 3875 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 3876 | |
82641697 GM |
3877 | /* If a frame-local face doesn't exist yet, create one. */ |
3878 | if (NILP (lface)) | |
3879 | lface = Finternal_make_lisp_face (face, frame); | |
3880 | } | |
3881 | ||
3882 | if (EQ (attr, QCfamily)) | |
3883 | { | |
3884 | if (!UNSPECIFIEDP (value)) | |
3885 | { | |
b7826503 | 3886 | CHECK_STRING (value); |
82641697 GM |
3887 | if (XSTRING (value)->size == 0) |
3888 | signal_error ("Invalid face family", value); | |
3889 | } | |
3890 | old_value = LFACE_FAMILY (lface); | |
3891 | LFACE_FAMILY (lface) = value; | |
3892 | font_related_attr_p = 1; | |
3893 | } | |
3894 | else if (EQ (attr, QCheight)) | |
3895 | { | |
3896 | if (!UNSPECIFIEDP (value)) | |
3897 | { | |
d8055bfc | 3898 | Lisp_Object test; |
2c20458f | 3899 | |
d8055bfc GM |
3900 | test = (EQ (face, Qdefault) |
3901 | ? value | |
3902 | /* The default face must have an absolute size, | |
3903 | otherwise, we do a test merge with a random | |
3904 | height to see if VALUE's ok. */ | |
3905 | : merge_face_heights (value, make_number (10), Qnil, Qnil)); | |
3906 | ||
3907 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
3908 | signal_error ("Invalid face height", value); |
3909 | } | |
2c20458f | 3910 | |
82641697 GM |
3911 | old_value = LFACE_HEIGHT (lface); |
3912 | LFACE_HEIGHT (lface) = value; | |
3913 | font_related_attr_p = 1; | |
3914 | } | |
3915 | else if (EQ (attr, QCweight)) | |
3916 | { | |
3917 | if (!UNSPECIFIEDP (value)) | |
3918 | { | |
b7826503 | 3919 | CHECK_SYMBOL (value); |
82641697 GM |
3920 | if (face_numeric_weight (value) < 0) |
3921 | signal_error ("Invalid face weight", value); | |
3922 | } | |
3923 | old_value = LFACE_WEIGHT (lface); | |
3924 | LFACE_WEIGHT (lface) = value; | |
3925 | font_related_attr_p = 1; | |
3926 | } | |
3927 | else if (EQ (attr, QCslant)) | |
3928 | { | |
3929 | if (!UNSPECIFIEDP (value)) | |
3930 | { | |
b7826503 | 3931 | CHECK_SYMBOL (value); |
82641697 GM |
3932 | if (face_numeric_slant (value) < 0) |
3933 | signal_error ("Invalid face slant", value); | |
3934 | } | |
3935 | old_value = LFACE_SLANT (lface); | |
3936 | LFACE_SLANT (lface) = value; | |
3937 | font_related_attr_p = 1; | |
3938 | } | |
3939 | else if (EQ (attr, QCunderline)) | |
3940 | { | |
3941 | if (!UNSPECIFIEDP (value)) | |
3942 | if ((SYMBOLP (value) | |
3943 | && !EQ (value, Qt) | |
3944 | && !EQ (value, Qnil)) | |
3945 | /* Underline color. */ | |
3946 | || (STRINGP (value) | |
3947 | && XSTRING (value)->size == 0)) | |
3948 | signal_error ("Invalid face underline", value); | |
178c5d9c | 3949 | |
82641697 GM |
3950 | old_value = LFACE_UNDERLINE (lface); |
3951 | LFACE_UNDERLINE (lface) = value; | |
3952 | } | |
3953 | else if (EQ (attr, QCoverline)) | |
3954 | { | |
3955 | if (!UNSPECIFIEDP (value)) | |
3956 | if ((SYMBOLP (value) | |
3957 | && !EQ (value, Qt) | |
3958 | && !EQ (value, Qnil)) | |
3959 | /* Overline color. */ | |
3960 | || (STRINGP (value) | |
3961 | && XSTRING (value)->size == 0)) | |
3962 | signal_error ("Invalid face overline", value); | |
178c5d9c | 3963 | |
82641697 GM |
3964 | old_value = LFACE_OVERLINE (lface); |
3965 | LFACE_OVERLINE (lface) = value; | |
3966 | } | |
3967 | else if (EQ (attr, QCstrike_through)) | |
3968 | { | |
3969 | if (!UNSPECIFIEDP (value)) | |
3970 | if ((SYMBOLP (value) | |
3971 | && !EQ (value, Qt) | |
3972 | && !EQ (value, Qnil)) | |
3973 | /* Strike-through color. */ | |
3974 | || (STRINGP (value) | |
3975 | && XSTRING (value)->size == 0)) | |
3976 | signal_error ("Invalid face strike-through", value); | |
178c5d9c | 3977 | |
82641697 GM |
3978 | old_value = LFACE_STRIKE_THROUGH (lface); |
3979 | LFACE_STRIKE_THROUGH (lface) = value; | |
3980 | } | |
3981 | else if (EQ (attr, QCbox)) | |
3982 | { | |
3983 | int valid_p; | |
178c5d9c | 3984 | |
82641697 GM |
3985 | /* Allow t meaning a simple box of width 1 in foreground color |
3986 | of the face. */ | |
3987 | if (EQ (value, Qt)) | |
3988 | value = make_number (1); | |
3989 | ||
3990 | if (UNSPECIFIEDP (value)) | |
3991 | valid_p = 1; | |
3992 | else if (NILP (value)) | |
3993 | valid_p = 1; | |
3994 | else if (INTEGERP (value)) | |
89624b8b | 3995 | valid_p = XINT (value) != 0; |
82641697 GM |
3996 | else if (STRINGP (value)) |
3997 | valid_p = XSTRING (value)->size > 0; | |
3998 | else if (CONSP (value)) | |
3999 | { | |
4000 | Lisp_Object tem; | |
178c5d9c | 4001 | |
82641697 GM |
4002 | tem = value; |
4003 | while (CONSP (tem)) | |
4004 | { | |
4005 | Lisp_Object k, v; | |
4006 | ||
4007 | k = XCAR (tem); | |
4008 | tem = XCDR (tem); | |
4009 | if (!CONSP (tem)) | |
4010 | break; | |
4011 | v = XCAR (tem); | |
4012 | tem = XCDR (tem); | |
178c5d9c | 4013 | |
82641697 GM |
4014 | if (EQ (k, QCline_width)) |
4015 | { | |
89624b8b | 4016 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4017 | break; |
4018 | } | |
4019 | else if (EQ (k, QCcolor)) | |
4020 | { | |
4021 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
4022 | break; | |
4023 | } | |
4024 | else if (EQ (k, QCstyle)) | |
4025 | { | |
4026 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4027 | break; | |
4028 | } | |
4029 | else | |
4030 | break; | |
4031 | } | |
4032 | ||
4033 | valid_p = NILP (tem); | |
4034 | } | |
4035 | else | |
4036 | valid_p = 0; | |
4037 | ||
4038 | if (!valid_p) | |
4039 | signal_error ("Invalid face box", value); | |
178c5d9c | 4040 | |
82641697 GM |
4041 | old_value = LFACE_BOX (lface); |
4042 | LFACE_BOX (lface) = value; | |
4043 | } | |
4044 | else if (EQ (attr, QCinverse_video) | |
4045 | || EQ (attr, QCreverse_video)) | |
4046 | { | |
4047 | if (!UNSPECIFIEDP (value)) | |
4048 | { | |
b7826503 | 4049 | CHECK_SYMBOL (value); |
82641697 GM |
4050 | if (!EQ (value, Qt) && !NILP (value)) |
4051 | signal_error ("Invalid inverse-video face attribute value", value); | |
4052 | } | |
4053 | old_value = LFACE_INVERSE (lface); | |
4054 | LFACE_INVERSE (lface) = value; | |
4055 | } | |
4056 | else if (EQ (attr, QCforeground)) | |
4057 | { | |
ef917393 | 4058 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4059 | { |
4060 | /* Don't check for valid color names here because it depends | |
4061 | on the frame (display) whether the color will be valid | |
4062 | when the face is realized. */ | |
b7826503 | 4063 | CHECK_STRING (value); |
82641697 GM |
4064 | if (XSTRING (value)->size == 0) |
4065 | signal_error ("Empty foreground color value", value); | |
4066 | } | |
4067 | old_value = LFACE_FOREGROUND (lface); | |
4068 | LFACE_FOREGROUND (lface) = value; | |
4069 | } | |
4070 | else if (EQ (attr, QCbackground)) | |
4071 | { | |
ef917393 | 4072 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4073 | { |
4074 | /* Don't check for valid color names here because it depends | |
4075 | on the frame (display) whether the color will be valid | |
4076 | when the face is realized. */ | |
b7826503 | 4077 | CHECK_STRING (value); |
82641697 GM |
4078 | if (XSTRING (value)->size == 0) |
4079 | signal_error ("Empty background color value", value); | |
4080 | } | |
4081 | old_value = LFACE_BACKGROUND (lface); | |
4082 | LFACE_BACKGROUND (lface) = value; | |
4083 | } | |
4084 | else if (EQ (attr, QCstipple)) | |
4085 | { | |
4086 | #ifdef HAVE_X_WINDOWS | |
4087 | if (!UNSPECIFIEDP (value) | |
4088 | && !NILP (value) | |
fef04523 | 4089 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4090 | signal_error ("Invalid stipple attribute", value); |
4091 | old_value = LFACE_STIPPLE (lface); | |
4092 | LFACE_STIPPLE (lface) = value; | |
4093 | #endif /* HAVE_X_WINDOWS */ | |
4094 | } | |
4095 | else if (EQ (attr, QCwidth)) | |
4096 | { | |
4097 | if (!UNSPECIFIEDP (value)) | |
4098 | { | |
b7826503 | 4099 | CHECK_SYMBOL (value); |
82641697 GM |
4100 | if (face_numeric_swidth (value) < 0) |
4101 | signal_error ("Invalid face width", value); | |
4102 | } | |
4103 | old_value = LFACE_SWIDTH (lface); | |
4104 | LFACE_SWIDTH (lface) = value; | |
4105 | font_related_attr_p = 1; | |
4106 | } | |
4107 | else if (EQ (attr, QCfont)) | |
4108 | { | |
c3cee013 | 4109 | #ifdef HAVE_WINDOW_SYSTEM |
496e1a5b | 4110 | if (FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4111 | { |
4112 | /* Set font-related attributes of the Lisp face from an XLFD | |
4113 | font name. */ | |
4114 | struct frame *f; | |
4115 | Lisp_Object tmp; | |
82641697 | 4116 | |
b7826503 | 4117 | CHECK_STRING (value); |
96fbd2c6 EZ |
4118 | if (EQ (frame, Qt)) |
4119 | f = SELECTED_FRAME (); | |
4120 | else | |
4121 | f = check_x_frame (frame); | |
178c5d9c | 4122 | |
96fbd2c6 EZ |
4123 | /* VALUE may be a fontset name or an alias of fontset. In |
4124 | such a case, use the base fontset name. */ | |
4125 | tmp = Fquery_fontset (value, Qnil); | |
4126 | if (!NILP (tmp)) | |
4127 | value = tmp; | |
39506348 | 4128 | |
96fbd2c6 EZ |
4129 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) |
4130 | signal_error ("Invalid font or fontset name", value); | |
39506348 | 4131 | |
96fbd2c6 EZ |
4132 | font_attr_p = 1; |
4133 | } | |
c3cee013 | 4134 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4135 | } |
2c20458f MB |
4136 | else if (EQ (attr, QCinherit)) |
4137 | { | |
4138 | Lisp_Object tail; | |
4139 | if (SYMBOLP (value)) | |
4140 | tail = Qnil; | |
4141 | else | |
4142 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4143 | if (!SYMBOLP (XCAR (tail))) | |
4144 | break; | |
4145 | if (NILP (tail)) | |
4146 | LFACE_INHERIT (lface) = value; | |
4147 | else | |
6288c62f | 4148 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4149 | } |
82641697 GM |
4150 | else if (EQ (attr, QCbold)) |
4151 | { | |
4152 | old_value = LFACE_WEIGHT (lface); | |
4153 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4154 | font_related_attr_p = 1; | |
4155 | } | |
4156 | else if (EQ (attr, QCitalic)) | |
4157 | { | |
4158 | old_value = LFACE_SLANT (lface); | |
4159 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4160 | font_related_attr_p = 1; | |
4161 | } | |
4162 | else | |
4163 | signal_error ("Invalid face attribute name", attr); | |
4164 | ||
39506348 KH |
4165 | if (font_related_attr_p |
4166 | && !UNSPECIFIEDP (value)) | |
4167 | /* If a font-related attribute other than QCfont is specified, the | |
4168 | original `font' attribute nor that of default face is useless | |
4169 | to determine a new font. Thus, we set it to nil so that font | |
4170 | selection mechanism doesn't use it. */ | |
4171 | LFACE_FONT (lface) = Qnil; | |
4172 | ||
82641697 GM |
4173 | /* Changing a named face means that all realized faces depending on |
4174 | that face are invalid. Since we cannot tell which realized faces | |
4175 | depend on the face, make sure they are all removed. This is done | |
4176 | by incrementing face_change_count. The next call to | |
4177 | init_iterator will then free realized faces. */ | |
4178 | if (!EQ (frame, Qt) | |
4179 | && (EQ (attr, QCfont) | |
4180 | || NILP (Fequal (old_value, value)))) | |
4181 | { | |
4182 | ++face_change_count; | |
4183 | ++windows_or_buffers_changed; | |
4184 | } | |
4185 | ||
0eb2ecde | 4186 | if (!UNSPECIFIEDP (value) |
82641697 | 4187 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4188 | { |
4189 | Lisp_Object param; | |
4190 | ||
4191 | param = Qnil; | |
178c5d9c | 4192 | |
8bd201d6 GM |
4193 | if (EQ (face, Qdefault)) |
4194 | { | |
b9c769f8 | 4195 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4196 | /* Changed font-related attributes of the `default' face are |
4197 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4198 | if (FRAMEP (frame) |
4199 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4200 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4201 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4202 | else |
4203 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4204 | ||
4205 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4206 | param = Qforeground_color; |
4207 | else if (EQ (attr, QCbackground)) | |
4208 | param = Qbackground_color; | |
4209 | } | |
b9c769f8 | 4210 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4211 | #ifndef WINDOWSNT |
8bd201d6 GM |
4212 | else if (EQ (face, Qscroll_bar)) |
4213 | { | |
4214 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4215 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4216 | if (EQ (attr, QCforeground)) | |
4217 | param = Qscroll_bar_foreground; | |
4218 | else if (EQ (attr, QCbackground)) | |
4219 | param = Qscroll_bar_background; | |
4220 | } | |
d12d0a9b | 4221 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4222 | else if (EQ (face, Qborder)) |
4223 | { | |
4224 | /* Changing background color of `border' sets frame parameter | |
4225 | `border-color'. */ | |
4226 | if (EQ (attr, QCbackground)) | |
4227 | param = Qborder_color; | |
4228 | } | |
4229 | else if (EQ (face, Qcursor)) | |
4230 | { | |
4231 | /* Changing background color of `cursor' sets frame parameter | |
4232 | `cursor-color'. */ | |
4233 | if (EQ (attr, QCbackground)) | |
4234 | param = Qcursor_color; | |
4235 | } | |
4236 | else if (EQ (face, Qmouse)) | |
4237 | { | |
4238 | /* Changing background color of `mouse' sets frame parameter | |
4239 | `mouse-color'. */ | |
4240 | if (EQ (attr, QCbackground)) | |
4241 | param = Qmouse_color; | |
4242 | } | |
b9c769f8 | 4243 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4244 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4245 | { |
4246 | /* Indicate that we have to update the menu bar when | |
4247 | realizing faces on FRAME. FRAME t change the | |
4248 | default for new frames. We do this by setting | |
4249 | setting the flag in new face caches */ | |
4250 | if (FRAMEP (frame)) | |
4251 | { | |
4252 | struct frame *f = XFRAME (frame); | |
4253 | if (FRAME_FACE_CACHE (f) == NULL) | |
4254 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4255 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4256 | } | |
4257 | else | |
4258 | menu_face_changed_default = 1; | |
4259 | } | |
8bd201d6 | 4260 | |
39506348 | 4261 | if (!NILP (param)) |
ab8469eb PJ |
4262 | { |
4263 | if (EQ (frame, Qt)) | |
4264 | /* Update `default-frame-alist', which is used for new frames. */ | |
4265 | { | |
4266 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4267 | } | |
4268 | else | |
4269 | /* Update the current frame's parameters. */ | |
4270 | { | |
4271 | Lisp_Object cons; | |
4272 | cons = XCAR (Vparam_value_alist); | |
4273 | XSETCAR (cons, param); | |
4274 | XSETCDR (cons, value); | |
4275 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4276 | } | |
4277 | } | |
8bd201d6 | 4278 | } |
82641697 | 4279 | |
82641697 GM |
4280 | return face; |
4281 | } | |
4282 | ||
4283 | ||
c3cee013 | 4284 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4285 | |
39506348 KH |
4286 | /* Set the `font' frame parameter of FRAME determined from `default' |
4287 | face attributes LFACE. If a face or fontset name is explicitely | |
4288 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4289 | from the other font-related atrributes of LFACE. In that case, if | |
4290 | there's no matching font, signals an error. */ | |
82641697 GM |
4291 | |
4292 | static void | |
4293 | set_font_frame_param (frame, lface) | |
4294 | Lisp_Object frame, lface; | |
4295 | { | |
4296 | struct frame *f = XFRAME (frame); | |
82641697 | 4297 | |
482cca61 | 4298 | if (FRAME_WINDOW_P (f)) |
82641697 | 4299 | { |
482cca61 GM |
4300 | Lisp_Object font_name; |
4301 | char *font; | |
4302 | ||
4303 | if (STRINGP (LFACE_FONT (lface))) | |
4304 | font_name = LFACE_FONT (lface); | |
4305 | else | |
4306 | { | |
4307 | /* Choose a font name that reflects LFACE's attributes and has | |
4308 | the registry and encoding pattern specified in the default | |
4309 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
81b39386 | 4310 | font = choose_face_font (f, XVECTOR (lface)->contents, NULL, 0); |
482cca61 GM |
4311 | if (!font) |
4312 | error ("No font matches the specified attribute"); | |
4313 | font_name = build_string (font); | |
4314 | xfree (font); | |
4315 | } | |
5226a931 | 4316 | |
482cca61 GM |
4317 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4318 | } | |
82641697 GM |
4319 | } |
4320 | ||
4321 | ||
8bd201d6 GM |
4322 | /* Update the corresponding face when frame parameter PARAM on frame F |
4323 | has been assigned the value NEW_VALUE. */ | |
4324 | ||
4325 | void | |
4326 | update_face_from_frame_parameter (f, param, new_value) | |
4327 | struct frame *f; | |
4328 | Lisp_Object param, new_value; | |
4329 | { | |
4330 | Lisp_Object lface; | |
4331 | ||
4332 | /* If there are no faces yet, give up. This is the case when called | |
4333 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4334 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4335 | if (NILP (f->face_alist)) |
4336 | return; | |
178c5d9c | 4337 | |
33565969 RS |
4338 | /* Changing a named face means that all realized faces depending on |
4339 | that face are invalid. Since we cannot tell which realized faces | |
4340 | depend on the face, make sure they are all removed. This is done | |
4341 | by incrementing face_change_count. The next call to | |
4342 | init_iterator will then free realized faces. */ | |
4343 | ++face_change_count; | |
4344 | ++windows_or_buffers_changed; | |
4345 | ||
8bd201d6 GM |
4346 | if (EQ (param, Qforeground_color)) |
4347 | { | |
4348 | lface = lface_from_face_name (f, Qdefault, 1); | |
4349 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
4350 | ? new_value : Qunspecified); | |
4351 | realize_basic_faces (f); | |
4352 | } | |
4353 | else if (EQ (param, Qbackground_color)) | |
4354 | { | |
92610620 GM |
4355 | Lisp_Object frame; |
4356 | ||
4357 | /* Changing the background color might change the background | |
4358 | mode, so that we have to load new defface specs. Call | |
4359 | frame-update-face-colors to do that. */ | |
4360 | XSETFRAME (frame, f); | |
4361 | call1 (Qframe_update_face_colors, frame); | |
178c5d9c | 4362 | |
8bd201d6 GM |
4363 | lface = lface_from_face_name (f, Qdefault, 1); |
4364 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4365 | ? new_value : Qunspecified); | |
4366 | realize_basic_faces (f); | |
4367 | } | |
4368 | if (EQ (param, Qborder_color)) | |
4369 | { | |
4370 | lface = lface_from_face_name (f, Qborder, 1); | |
4371 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4372 | ? new_value : Qunspecified); | |
4373 | } | |
4374 | else if (EQ (param, Qcursor_color)) | |
4375 | { | |
4376 | lface = lface_from_face_name (f, Qcursor, 1); | |
4377 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4378 | ? new_value : Qunspecified); | |
4379 | } | |
4380 | else if (EQ (param, Qmouse_color)) | |
4381 | { | |
4382 | lface = lface_from_face_name (f, Qmouse, 1); | |
4383 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4384 | ? new_value : Qunspecified); | |
4385 | } | |
4386 | } | |
4387 | ||
4388 | ||
82641697 GM |
4389 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4390 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4391 | doesn't take a frame argument. */ | |
4392 | ||
4393 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4394 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4395 | (resource, class, frame) | |
82641697 GM |
4396 | Lisp_Object resource, class, frame; |
4397 | { | |
c3cee013 JR |
4398 | Lisp_Object value = Qnil; |
4399 | #ifndef WINDOWSNT | |
1a578e9b | 4400 | #ifndef macintosh |
b7826503 PJ |
4401 | CHECK_STRING (resource); |
4402 | CHECK_STRING (class); | |
4403 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4404 | BLOCK_INPUT; |
4405 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4406 | resource, class, Qnil, Qnil); | |
4407 | UNBLOCK_INPUT; | |
1a578e9b | 4408 | #endif /* not macintosh */ |
d12d0a9b | 4409 | #endif /* not WINDOWSNT */ |
82641697 GM |
4410 | return value; |
4411 | } | |
4412 | ||
4413 | ||
4414 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4415 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4416 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4417 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4418 | |
82641697 GM |
4419 | static Lisp_Object |
4420 | face_boolean_x_resource_value (value, signal_p) | |
4421 | Lisp_Object value; | |
4422 | int signal_p; | |
4423 | { | |
4424 | Lisp_Object result = make_number (0); | |
4425 | ||
4426 | xassert (STRINGP (value)); | |
178c5d9c | 4427 | |
82641697 GM |
4428 | if (xstricmp (XSTRING (value)->data, "on") == 0 |
4429 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
4430 | result = Qt; | |
4431 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
4432 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
4433 | result = Qnil; | |
4434 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4435 | result = Qunspecified; | |
4436 | else if (signal_p) | |
4437 | signal_error ("Invalid face attribute value from X resource", value); | |
4438 | ||
4439 | return result; | |
4440 | } | |
4441 | ||
4442 | ||
4443 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4444 | Finternal_set_lisp_face_attribute_from_resource, | |
4445 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4446 | 3, 4, 0, doc: /* */) |
4447 | (face, attr, value, frame) | |
82641697 GM |
4448 | Lisp_Object face, attr, value, frame; |
4449 | { | |
b7826503 PJ |
4450 | CHECK_SYMBOL (face); |
4451 | CHECK_SYMBOL (attr); | |
4452 | CHECK_STRING (value); | |
82641697 GM |
4453 | |
4454 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4455 | value = Qunspecified; | |
4456 | else if (EQ (attr, QCheight)) | |
4457 | { | |
4458 | value = Fstring_to_number (value, make_number (10)); | |
4459 | if (XINT (value) <= 0) | |
4460 | signal_error ("Invalid face height from X resource", value); | |
4461 | } | |
4462 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4463 | value = face_boolean_x_resource_value (value, 1); | |
4464 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
4465 | value = intern (XSTRING (value)->data); | |
4466 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
4467 | value = face_boolean_x_resource_value (value, 1); | |
4468 | else if (EQ (attr, QCunderline) | |
4469 | || EQ (attr, QCoverline) | |
27188d11 | 4470 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4471 | { |
4472 | Lisp_Object boolean_value; | |
4473 | ||
4474 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4475 | VALUE does NOT specify a color. */ | |
4476 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4477 | if (SYMBOLP (boolean_value)) | |
4478 | value = boolean_value; | |
4479 | } | |
27188d11 GM |
4480 | else if (EQ (attr, QCbox)) |
4481 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); | |
82641697 GM |
4482 | |
4483 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4484 | } | |
4485 | ||
c3cee013 | 4486 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4487 | |
c7ae3284 GM |
4488 | \f |
4489 | /*********************************************************************** | |
4490 | Menu face | |
4491 | ***********************************************************************/ | |
4492 | ||
bce72079 | 4493 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4494 | |
bce72079 GM |
4495 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4496 | ||
4497 | static void | |
4498 | x_update_menu_appearance (f) | |
c7ae3284 | 4499 | struct frame *f; |
c7ae3284 | 4500 | { |
a03ad468 | 4501 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4502 | XrmDatabase rdb; |
178c5d9c | 4503 | |
bce72079 GM |
4504 | if (dpyinfo |
4505 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4506 | rdb != NULL)) | |
c7ae3284 | 4507 | { |
bce72079 GM |
4508 | char line[512]; |
4509 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4510 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4511 | char *myname = XSTRING (Vx_resource_name)->data; | |
4512 | int changed_p = 0; | |
8ad582ac GM |
4513 | #ifdef USE_MOTIF |
4514 | const char *popup_path = "popup_menu"; | |
4515 | #else | |
4516 | const char *popup_path = "menu.popup"; | |
4517 | #endif | |
823ba8d8 | 4518 | |
bce72079 GM |
4519 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4520 | { | |
8ad582ac GM |
4521 | sprintf (line, "%s.%s*foreground: %s", |
4522 | myname, popup_path, | |
4523 | XSTRING (LFACE_FOREGROUND (lface))->data); | |
bce72079 GM |
4524 | XrmPutLineResource (&rdb, line); |
4525 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
4526 | myname, XSTRING (LFACE_FOREGROUND (lface))->data); | |
4527 | XrmPutLineResource (&rdb, line); | |
4528 | changed_p = 1; | |
4529 | } | |
178c5d9c | 4530 | |
bce72079 GM |
4531 | if (STRINGP (LFACE_BACKGROUND (lface))) |
4532 | { | |
8ad582ac GM |
4533 | sprintf (line, "%s.%s*background: %s", |
4534 | myname, popup_path, | |
4535 | XSTRING (LFACE_BACKGROUND (lface))->data); | |
bce72079 GM |
4536 | XrmPutLineResource (&rdb, line); |
4537 | sprintf (line, "%s.pane.menubar*background: %s", | |
4538 | myname, XSTRING (LFACE_BACKGROUND (lface))->data); | |
4539 | XrmPutLineResource (&rdb, line); | |
4540 | changed_p = 1; | |
4541 | } | |
a03ad468 | 4542 | |
bce72079 GM |
4543 | if (face->font_name |
4544 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4545 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4546 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
4547 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4548 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4549 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4550 | { | |
a03ad468 | 4551 | #ifdef USE_MOTIF |
bce72079 | 4552 | const char *suffix = "List"; |
a03ad468 | 4553 | #else |
bce72079 GM |
4554 | const char *suffix = ""; |
4555 | #endif | |
4556 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
4557 | myname, suffix, face->font_name); | |
4558 | XrmPutLineResource (&rdb, line); | |
2eddf899 GM |
4559 | sprintf (line, "%s.%s*font%s: %s", |
4560 | myname, popup_path, suffix, face->font_name); | |
bce72079 GM |
4561 | XrmPutLineResource (&rdb, line); |
4562 | changed_p = 1; | |
4563 | } | |
c7ae3284 | 4564 | |
bce72079 | 4565 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 4566 | free_frame_menubar (f); |
c7ae3284 GM |
4567 | } |
4568 | } | |
4569 | ||
bce72079 | 4570 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
4571 | |
4572 | ||
cdfaafa9 MB |
4573 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
4574 | Sface_attribute_relative_p, | |
4575 | 2, 2, 0, | |
4576 | doc: /* Return non-nil if face ATTRIBUTE VALUE is relative. */) | |
4577 | (attribute, value) | |
d0930289 | 4578 | Lisp_Object attribute, value; |
cdfaafa9 MB |
4579 | { |
4580 | if (EQ (value, Qunspecified)) | |
4581 | return Qt; | |
4582 | else if (EQ (attribute, QCheight)) | |
4583 | return INTEGERP (value) ? Qnil : Qt; | |
4584 | else | |
4585 | return Qnil; | |
4586 | } | |
4587 | ||
4588 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
4589 | 3, 3, 0, | |
4590 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
4591 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
4592 | the result will be absolute, otherwise it will be relative. */) | |
4593 | (attribute, value1, value2) | |
4594 | Lisp_Object attribute, value1, value2; | |
4595 | { | |
4596 | if (EQ (value1, Qunspecified)) | |
4597 | return value2; | |
4598 | else if (EQ (attribute, QCheight)) | |
4599 | return merge_face_heights (value1, value2, value1, Qnil); | |
4600 | else | |
4601 | return value1; | |
4602 | } | |
4603 | ||
82641697 GM |
4604 | |
4605 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4606 | Sinternal_get_lisp_face_attribute, | |
4607 | 2, 3, 0, | |
7ee72033 | 4608 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
4609 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
4610 | face attribute name, signal an error. | |
4611 | If the optional argument FRAME is given, report on face FACE in that | |
4612 | frame. If FRAME is t, report on the defaults for face FACE (for new | |
7ee72033 MB |
4613 | frames). If FRAME is omitted or nil, use the selected frame. */) |
4614 | (symbol, keyword, frame) | |
82641697 GM |
4615 | Lisp_Object symbol, keyword, frame; |
4616 | { | |
4617 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4618 | |
b7826503 PJ |
4619 | CHECK_SYMBOL (symbol); |
4620 | CHECK_SYMBOL (keyword); | |
82641697 GM |
4621 | |
4622 | if (EQ (frame, Qt)) | |
4623 | lface = lface_from_face_name (NULL, symbol, 1); | |
4624 | else | |
4625 | { | |
4626 | if (NILP (frame)) | |
c0617987 | 4627 | frame = selected_frame; |
b7826503 | 4628 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4629 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
4630 | } | |
4631 | ||
4632 | if (EQ (keyword, QCfamily)) | |
4633 | value = LFACE_FAMILY (lface); | |
4634 | else if (EQ (keyword, QCheight)) | |
4635 | value = LFACE_HEIGHT (lface); | |
4636 | else if (EQ (keyword, QCweight)) | |
4637 | value = LFACE_WEIGHT (lface); | |
4638 | else if (EQ (keyword, QCslant)) | |
4639 | value = LFACE_SLANT (lface); | |
4640 | else if (EQ (keyword, QCunderline)) | |
4641 | value = LFACE_UNDERLINE (lface); | |
4642 | else if (EQ (keyword, QCoverline)) | |
4643 | value = LFACE_OVERLINE (lface); | |
4644 | else if (EQ (keyword, QCstrike_through)) | |
4645 | value = LFACE_STRIKE_THROUGH (lface); | |
4646 | else if (EQ (keyword, QCbox)) | |
4647 | value = LFACE_BOX (lface); | |
4648 | else if (EQ (keyword, QCinverse_video) | |
4649 | || EQ (keyword, QCreverse_video)) | |
4650 | value = LFACE_INVERSE (lface); | |
4651 | else if (EQ (keyword, QCforeground)) | |
4652 | value = LFACE_FOREGROUND (lface); | |
4653 | else if (EQ (keyword, QCbackground)) | |
4654 | value = LFACE_BACKGROUND (lface); | |
4655 | else if (EQ (keyword, QCstipple)) | |
4656 | value = LFACE_STIPPLE (lface); | |
4657 | else if (EQ (keyword, QCwidth)) | |
4658 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4659 | else if (EQ (keyword, QCinherit)) |
4660 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4661 | else if (EQ (keyword, QCfont)) |
4662 | value = LFACE_FONT (lface); | |
82641697 GM |
4663 | else |
4664 | signal_error ("Invalid face attribute name", keyword); | |
4665 | ||
4666 | return value; | |
4667 | } | |
4668 | ||
4669 | ||
4670 | DEFUN ("internal-lisp-face-attribute-values", | |
4671 | Finternal_lisp_face_attribute_values, | |
4672 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
4673 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
4674 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
4675 | (attr) | |
82641697 GM |
4676 | Lisp_Object attr; |
4677 | { | |
4678 | Lisp_Object result = Qnil; | |
178c5d9c | 4679 | |
b7826503 | 4680 | CHECK_SYMBOL (attr); |
178c5d9c | 4681 | |
82641697 GM |
4682 | if (EQ (attr, QCweight) |
4683 | || EQ (attr, QCslant) | |
4684 | || EQ (attr, QCwidth)) | |
4685 | { | |
4686 | /* Extract permissible symbols from tables. */ | |
4687 | struct table_entry *table; | |
4688 | int i, dim; | |
178c5d9c | 4689 | |
82641697 GM |
4690 | if (EQ (attr, QCweight)) |
4691 | table = weight_table, dim = DIM (weight_table); | |
4692 | else if (EQ (attr, QCslant)) | |
4693 | table = slant_table, dim = DIM (slant_table); | |
4694 | else | |
4695 | table = swidth_table, dim = DIM (swidth_table); | |
4696 | ||
4697 | for (i = 0; i < dim; ++i) | |
4698 | { | |
4699 | Lisp_Object symbol = *table[i].symbol; | |
4700 | Lisp_Object tail = result; | |
4701 | ||
4702 | while (!NILP (tail) | |
4703 | && !EQ (XCAR (tail), symbol)) | |
4704 | tail = XCDR (tail); | |
4705 | ||
4706 | if (NILP (tail)) | |
4707 | result = Fcons (symbol, result); | |
4708 | } | |
4709 | } | |
4710 | else if (EQ (attr, QCunderline)) | |
4711 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4712 | else if (EQ (attr, QCoverline)) | |
4713 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4714 | else if (EQ (attr, QCstrike_through)) | |
4715 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4716 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4717 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4718 | ||
4719 | return result; | |
4720 | } | |
178c5d9c | 4721 | |
82641697 GM |
4722 | |
4723 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4724 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 4725 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
4726 | Default face attributes override any local face attributes. */) |
4727 | (face, frame) | |
82641697 GM |
4728 | Lisp_Object face, frame; |
4729 | { | |
aad40737 MB |
4730 | int i; |
4731 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4732 | ||
b7826503 | 4733 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4734 | global_lface = lface_from_face_name (NULL, face, 1); |
4735 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4736 | if (NILP (local_lface)) | |
4737 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4738 | |
cec33c90 SM |
4739 | /* Make every specified global attribute override the local one. |
4740 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4741 | the local frame is defined from default specs in `face-defface-spec' | |
4742 | and those should be overridden by global settings. Hence the strange | |
4743 | "global before local" priority. */ | |
aad40737 MB |
4744 | lvec = XVECTOR (local_lface)->contents; |
4745 | gvec = XVECTOR (global_lface)->contents; | |
4746 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4747 | if (! UNSPECIFIEDP (gvec[i])) | |
4748 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4749 | |
4750 | return Qnil; | |
82641697 GM |
4751 | } |
4752 | ||
4753 | ||
4754 | /* The following function is implemented for compatibility with 20.2. | |
4755 | The function is used in x-resolve-fonts when it is asked to | |
4756 | return fonts with the same size as the font of a face. This is | |
4757 | done in fontset.el. */ | |
4758 | ||
178c5d9c | 4759 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
e3cd9e7f | 4760 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
228299fa GM |
4761 | If the optional argument FRAME is given, report on face FACE in that frame. |
4762 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
4763 | The font default for a face is either nil, or a list | |
4764 | of the form (bold), (italic) or (bold italic). | |
7ee72033 MB |
4765 | If FRAME is omitted or nil, use the selected frame. */) |
4766 | (face, frame) | |
82641697 GM |
4767 | Lisp_Object face, frame; |
4768 | { | |
4769 | if (EQ (frame, Qt)) | |
4770 | { | |
4771 | Lisp_Object result = Qnil; | |
4772 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4773 | ||
4774 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4775 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4776 | result = Fcons (Qbold, result); | |
178c5d9c | 4777 | |
0f2c6573 | 4778 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
4779 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
4780 | result = Fcons (Qitalic, result); | |
178c5d9c | 4781 | |
82641697 GM |
4782 | return result; |
4783 | } | |
4784 | else | |
4785 | { | |
4786 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4787 | int face_id = lookup_named_face (f, face, 0); |
82641697 | 4788 | struct face *face = FACE_FROM_ID (f, face_id); |
b5de343d | 4789 | return face ? build_string (face->font_name) : Qnil; |
82641697 GM |
4790 | } |
4791 | } | |
4792 | ||
4793 | ||
4794 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4795 | all attributes are `equal'. Tries to be fast because this function | |
4796 | is called quite often. */ | |
4797 | ||
4798 | static INLINE int | |
4799 | lface_equal_p (v1, v2) | |
4800 | Lisp_Object *v1, *v2; | |
4801 | { | |
4802 | int i, equal_p = 1; | |
4803 | ||
4804 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4805 | { | |
4806 | Lisp_Object a = v1[i]; | |
4807 | Lisp_Object b = v2[i]; | |
4808 | ||
4809 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4810 | and the other is specified. */ | |
4811 | equal_p = XTYPE (a) == XTYPE (b); | |
4812 | if (!equal_p) | |
4813 | break; | |
4814 | ||
4815 | if (!EQ (a, b)) | |
4816 | { | |
4817 | switch (XTYPE (a)) | |
4818 | { | |
4819 | case Lisp_String: | |
ae4b4ba5 GM |
4820 | equal_p = ((STRING_BYTES (XSTRING (a)) |
4821 | == STRING_BYTES (XSTRING (b))) | |
82641697 | 4822 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, |
ae4b4ba5 | 4823 | STRING_BYTES (XSTRING (a))) == 0); |
82641697 | 4824 | break; |
178c5d9c | 4825 | |
82641697 GM |
4826 | case Lisp_Int: |
4827 | case Lisp_Symbol: | |
4828 | equal_p = 0; | |
4829 | break; | |
178c5d9c | 4830 | |
82641697 GM |
4831 | default: |
4832 | equal_p = !NILP (Fequal (a, b)); | |
4833 | break; | |
4834 | } | |
4835 | } | |
4836 | } | |
178c5d9c | 4837 | |
82641697 GM |
4838 | return equal_p; |
4839 | } | |
4840 | ||
4841 | ||
4842 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4843 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 4844 | doc: /* True if FACE1 and FACE2 are equal. |
228299fa GM |
4845 | If the optional argument FRAME is given, report on face FACE in that frame. |
4846 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4847 | If FRAME is omitted or nil, use the selected frame. */) |
4848 | (face1, face2, frame) | |
82641697 GM |
4849 | Lisp_Object face1, face2, frame; |
4850 | { | |
4851 | int equal_p; | |
4852 | struct frame *f; | |
4853 | Lisp_Object lface1, lface2; | |
178c5d9c | 4854 | |
82641697 GM |
4855 | if (EQ (frame, Qt)) |
4856 | f = NULL; | |
4857 | else | |
4858 | /* Don't use check_x_frame here because this function is called | |
4859 | before X frames exist. At that time, if FRAME is nil, | |
4860 | selected_frame will be used which is the frame dumped with | |
4861 | Emacs. That frame is not an X frame. */ | |
4862 | f = frame_or_selected_frame (frame, 2); | |
4863 | ||
4864 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4865 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4866 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4867 | XVECTOR (lface2)->contents); | |
4868 | return equal_p ? Qt : Qnil; | |
4869 | } | |
4870 | ||
178c5d9c | 4871 | |
82641697 GM |
4872 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
4873 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 4874 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
4875 | If the optional argument FRAME is given, report on face FACE in that frame. |
4876 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4877 | If FRAME is omitted or nil, use the selected frame. */) |
4878 | (face, frame) | |
82641697 GM |
4879 | Lisp_Object face, frame; |
4880 | { | |
4881 | struct frame *f; | |
4882 | Lisp_Object lface; | |
4883 | int i; | |
4884 | ||
4885 | if (NILP (frame)) | |
c0617987 | 4886 | frame = selected_frame; |
b7826503 | 4887 | CHECK_LIVE_FRAME (frame); |
c0617987 | 4888 | f = XFRAME (frame); |
178c5d9c | 4889 | |
82641697 GM |
4890 | if (EQ (frame, Qt)) |
4891 | lface = lface_from_face_name (NULL, face, 1); | |
4892 | else | |
4893 | lface = lface_from_face_name (f, face, 1); | |
4894 | ||
4895 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 4896 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 4897 | break; |
178c5d9c | 4898 | |
82641697 GM |
4899 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
4900 | } | |
4901 | ||
4902 | ||
4903 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 4904 | 0, 1, 0, |
7ee72033 MB |
4905 | doc: /* Return an alist of frame-local faces defined on FRAME. |
4906 | For internal use only. */) | |
4907 | (frame) | |
82641697 GM |
4908 | Lisp_Object frame; |
4909 | { | |
4910 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4911 | return f->face_alist; | |
4912 | } | |
4913 | ||
4914 | ||
4915 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4916 | below in computing a hash value for a Lisp face. */ | |
4917 | ||
4918 | static INLINE unsigned | |
4919 | hash_string_case_insensitive (string) | |
4920 | Lisp_Object string; | |
4921 | { | |
4922 | unsigned char *s; | |
4923 | unsigned hash = 0; | |
4924 | xassert (STRINGP (string)); | |
4925 | for (s = XSTRING (string)->data; *s; ++s) | |
4926 | hash = (hash << 1) ^ tolower (*s); | |
4927 | return hash; | |
4928 | } | |
4929 | ||
4930 | ||
4931 | /* Return a hash code for face attribute vector V. */ | |
4932 | ||
4933 | static INLINE unsigned | |
4934 | lface_hash (v) | |
4935 | Lisp_Object *v; | |
4936 | { | |
4937 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4938 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4939 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
4940 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
4941 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
4942 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
4943 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
4944 | } | |
4945 | ||
4946 | ||
4947 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4948 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4949 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4950 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4951 | |
4952 | static INLINE int | |
4953 | lface_same_font_attributes_p (lface1, lface2) | |
4954 | Lisp_Object *lface1, *lface2; | |
4955 | { | |
4956 | xassert (lface_fully_specified_p (lface1) | |
4957 | && lface_fully_specified_p (lface2)); | |
4958 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4959 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
2c20458f | 4960 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 4961 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 4962 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 4963 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
4964 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4965 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4966 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4967 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
39506348 KH |
4968 | && xstricmp (XSTRING (lface1[LFACE_FONT_INDEX])->data, |
4969 | XSTRING (lface2[LFACE_FONT_INDEX])->data)))); | |
82641697 GM |
4970 | } |
4971 | ||
4972 | ||
4973 | \f | |
4974 | /*********************************************************************** | |
4975 | Realized Faces | |
4976 | ***********************************************************************/ | |
4977 | ||
4978 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4979 | vector ATTR. */ |
82641697 GM |
4980 | |
4981 | static struct face * | |
39506348 | 4982 | make_realized_face (attr) |
82641697 | 4983 | Lisp_Object *attr; |
82641697 GM |
4984 | { |
4985 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4986 | bzero (face, sizeof *face); | |
39506348 | 4987 | face->ascii_face = face; |
82641697 GM |
4988 | bcopy (attr, face->lface, sizeof face->lface); |
4989 | return face; | |
4990 | } | |
4991 | ||
4992 | ||
4993 | /* Free realized face FACE, including its X resources. FACE may | |
4994 | be null. */ | |
4995 | ||
81b39386 | 4996 | void |
82641697 GM |
4997 | free_realized_face (f, face) |
4998 | struct frame *f; | |
4999 | struct face *face; | |
5000 | { | |
5001 | if (face) | |
5002 | { | |
c3cee013 JR |
5003 | #ifdef HAVE_WINDOW_SYSTEM |
5004 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5005 | { |
39506348 KH |
5006 | /* Free fontset of FACE if it is ASCII face. */ |
5007 | if (face->fontset >= 0 && face == face->ascii_face) | |
5008 | free_face_fontset (f, face); | |
82641697 GM |
5009 | if (face->gc) |
5010 | { | |
5011 | x_free_gc (f, face->gc); | |
5012 | face->gc = 0; | |
5013 | } | |
178c5d9c | 5014 | |
82641697 GM |
5015 | free_face_colors (f, face); |
5016 | x_destroy_bitmap (f, face->stipple); | |
5017 | } | |
c3cee013 | 5018 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5019 | |
5020 | xfree (face); | |
5021 | } | |
5022 | } | |
5023 | ||
5024 | ||
5025 | /* Prepare face FACE for subsequent display on frame F. This | |
5026 | allocated GCs if they haven't been allocated yet or have been freed | |
5027 | by clearing the face cache. */ | |
5028 | ||
5029 | void | |
5030 | prepare_face_for_display (f, face) | |
5031 | struct frame *f; | |
5032 | struct face *face; | |
5033 | { | |
c3cee013 JR |
5034 | #ifdef HAVE_WINDOW_SYSTEM |
5035 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5036 | |
82641697 GM |
5037 | if (face->gc == 0) |
5038 | { | |
5039 | XGCValues xgcv; | |
5040 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5041 | ||
5042 | xgcv.foreground = face->foreground; | |
5043 | xgcv.background = face->background; | |
c3cee013 | 5044 | #ifdef HAVE_X_WINDOWS |
82641697 | 5045 | xgcv.graphics_exposures = False; |
c3cee013 | 5046 | #endif |
82641697 GM |
5047 | /* The font of FACE may be null if we couldn't load it. */ |
5048 | if (face->font) | |
5049 | { | |
c3cee013 | 5050 | #ifdef HAVE_X_WINDOWS |
82641697 | 5051 | xgcv.font = face->font->fid; |
c3cee013 JR |
5052 | #endif |
5053 | #ifdef WINDOWSNT | |
5054 | xgcv.font = face->font; | |
1a578e9b AC |
5055 | #endif |
5056 | #ifdef macintosh | |
5057 | xgcv.font = face->font; | |
c3cee013 | 5058 | #endif |
82641697 GM |
5059 | mask |= GCFont; |
5060 | } | |
5061 | ||
5062 | BLOCK_INPUT; | |
c3cee013 | 5063 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5064 | if (face->stipple) |
5065 | { | |
be8a72f4 | 5066 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5067 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5068 | mask |= GCFillStyle | GCStipple; | |
5069 | } | |
c3cee013 | 5070 | #endif |
82641697 GM |
5071 | face->gc = x_create_gc (f, mask, &xgcv); |
5072 | UNBLOCK_INPUT; | |
5073 | } | |
c3cee013 | 5074 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5075 | } |
5076 | ||
82641697 GM |
5077 | \f |
5078 | /*********************************************************************** | |
5079 | Face Cache | |
5080 | ***********************************************************************/ | |
5081 | ||
5082 | /* Return a new face cache for frame F. */ | |
5083 | ||
5084 | static struct face_cache * | |
5085 | make_face_cache (f) | |
5086 | struct frame *f; | |
5087 | { | |
5088 | struct face_cache *c; | |
5089 | int size; | |
5090 | ||
5091 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5092 | bzero (c, sizeof *c); | |
5093 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5094 | c->buckets = (struct face **) xmalloc (size); | |
5095 | bzero (c->buckets, size); | |
5096 | c->size = 50; | |
5097 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5098 | c->f = f; | |
ceeda019 | 5099 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5100 | return c; |
5101 | } | |
5102 | ||
5103 | ||
5104 | /* Clear out all graphics contexts for all realized faces, except for | |
5105 | the basic faces. This should be done from time to time just to avoid | |
5106 | keeping too many graphics contexts that are no longer needed. */ | |
5107 | ||
5108 | static void | |
5109 | clear_face_gcs (c) | |
5110 | struct face_cache *c; | |
5111 | { | |
c3cee013 | 5112 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5113 | { |
c3cee013 | 5114 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5115 | int i; |
5116 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5117 | { | |
5118 | struct face *face = c->faces_by_id[i]; | |
5119 | if (face && face->gc) | |
5120 | { | |
5121 | x_free_gc (c->f, face->gc); | |
5122 | face->gc = 0; | |
5123 | } | |
5124 | } | |
c3cee013 | 5125 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5126 | } |
5127 | } | |
5128 | ||
5129 | ||
5130 | /* Free all realized faces in face cache C, including basic faces. C | |
5131 | may be null. If faces are freed, make sure the frame's current | |
5132 | matrix is marked invalid, so that a display caused by an expose | |
5133 | event doesn't try to use faces we destroyed. */ | |
5134 | ||
5135 | static void | |
5136 | free_realized_faces (c) | |
5137 | struct face_cache *c; | |
5138 | { | |
5139 | if (c && c->used) | |
5140 | { | |
5141 | int i, size; | |
5142 | struct frame *f = c->f; | |
5143 | ||
84ec3b4b GM |
5144 | /* We must block input here because we can't process X events |
5145 | safely while only some faces are freed, or when the frame's | |
5146 | current matrix still references freed faces. */ | |
5147 | BLOCK_INPUT; | |
5148 | ||
82641697 GM |
5149 | for (i = 0; i < c->used; ++i) |
5150 | { | |
5151 | free_realized_face (f, c->faces_by_id[i]); | |
5152 | c->faces_by_id[i] = NULL; | |
5153 | } | |
178c5d9c | 5154 | |
82641697 GM |
5155 | c->used = 0; |
5156 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5157 | bzero (c->buckets, size); | |
5158 | ||
5159 | /* Must do a thorough redisplay the next time. Mark current | |
5160 | matrices as invalid because they will reference faces freed | |
5161 | above. This function is also called when a frame is | |
5162 | destroyed. In this case, the root window of F is nil. */ | |
5163 | if (WINDOWP (f->root_window)) | |
5164 | { | |
5165 | clear_current_matrices (f); | |
5166 | ++windows_or_buffers_changed; | |
5167 | } | |
84ec3b4b GM |
5168 | |
5169 | UNBLOCK_INPUT; | |
82641697 GM |
5170 | } |
5171 | } | |
5172 | ||
5173 | ||
81b39386 | 5174 | /* Free all realized faces that are using FONTSET on frame F. */ |
39506348 KH |
5175 | |
5176 | void | |
81b39386 | 5177 | free_realized_faces_for_fontset (f, fontset) |
39506348 KH |
5178 | struct frame *f; |
5179 | int fontset; | |
5180 | { | |
5181 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5182 | struct face *face; | |
5183 | int i; | |
5184 | ||
84ec3b4b GM |
5185 | /* We must block input here because we can't process X events safely |
5186 | while only some faces are freed, or when the frame's current | |
5187 | matrix still references freed faces. */ | |
5188 | BLOCK_INPUT; | |
178c5d9c | 5189 | |
39506348 KH |
5190 | for (i = 0; i < cache->used; i++) |
5191 | { | |
5192 | face = cache->faces_by_id[i]; | |
5193 | if (face | |
39506348 KH |
5194 | && face->fontset == fontset) |
5195 | { | |
5196 | uncache_face (cache, face); | |
5197 | free_realized_face (f, face); | |
5198 | } | |
5199 | } | |
178c5d9c | 5200 | |
84ec3b4b GM |
5201 | /* Must do a thorough redisplay the next time. Mark current |
5202 | matrices as invalid because they will reference faces freed | |
5203 | above. This function is also called when a frame is destroyed. | |
5204 | In this case, the root window of F is nil. */ | |
39506348 KH |
5205 | if (WINDOWP (f->root_window)) |
5206 | { | |
5207 | clear_current_matrices (f); | |
5208 | ++windows_or_buffers_changed; | |
5209 | } | |
178c5d9c | 5210 | |
84ec3b4b | 5211 | UNBLOCK_INPUT; |
39506348 KH |
5212 | } |
5213 | ||
5214 | ||
82641697 GM |
5215 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5216 | This is done after attributes of a named face have been changed, | |
5217 | because we can't tell which realized faces depend on that face. */ | |
5218 | ||
5219 | void | |
5220 | free_all_realized_faces (frame) | |
5221 | Lisp_Object frame; | |
5222 | { | |
5223 | if (NILP (frame)) | |
5224 | { | |
5225 | Lisp_Object rest; | |
5226 | FOR_EACH_FRAME (rest, frame) | |
5227 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5228 | } | |
5229 | else | |
5230 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5231 | } | |
5232 | ||
5233 | ||
5234 | /* Free face cache C and faces in it, including their X resources. */ | |
5235 | ||
5236 | static void | |
5237 | free_face_cache (c) | |
5238 | struct face_cache *c; | |
5239 | { | |
5240 | if (c) | |
5241 | { | |
5242 | free_realized_faces (c); | |
5243 | xfree (c->buckets); | |
5244 | xfree (c->faces_by_id); | |
5245 | xfree (c); | |
5246 | } | |
5247 | } | |
5248 | ||
5249 | ||
5250 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5251 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5252 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5253 | otherwise lookup_face would find FACE for every character, even if |
5254 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5255 | |
5256 | static void | |
5257 | cache_face (c, face, hash) | |
5258 | struct face_cache *c; | |
5259 | struct face *face; | |
5260 | unsigned hash; | |
5261 | { | |
5262 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5263 | ||
5264 | face->hash = hash; | |
5265 | ||
5266 | if (face->fontset >= 0) | |
5267 | { | |
5268 | struct face *last = c->buckets[i]; | |
5269 | if (last) | |
5270 | { | |
5271 | while (last->next) | |
5272 | last = last->next; | |
5273 | last->next = face; | |
5274 | face->prev = last; | |
5275 | face->next = NULL; | |
5276 | } | |
5277 | else | |
5278 | { | |
5279 | c->buckets[i] = face; | |
5280 | face->prev = face->next = NULL; | |
5281 | } | |
5282 | } | |
5283 | else | |
5284 | { | |
5285 | face->prev = NULL; | |
5286 | face->next = c->buckets[i]; | |
5287 | if (face->next) | |
5288 | face->next->prev = face; | |
5289 | c->buckets[i] = face; | |
5290 | } | |
5291 | ||
5292 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5293 | slot as FACE->id. */ | |
5294 | for (i = 0; i < c->used; ++i) | |
5295 | if (c->faces_by_id[i] == NULL) | |
5296 | break; | |
5297 | face->id = i; | |
178c5d9c | 5298 | |
82641697 GM |
5299 | /* Maybe enlarge C->faces_by_id. */ |
5300 | if (i == c->used && c->used == c->size) | |
5301 | { | |
5302 | int new_size = 2 * c->size; | |
5303 | int sz = new_size * sizeof *c->faces_by_id; | |
5304 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5305 | c->size = new_size; | |
5306 | } | |
5307 | ||
5308 | #if GLYPH_DEBUG | |
5309 | /* Check that FACE got a unique id. */ | |
5310 | { | |
5311 | int j, n; | |
5312 | struct face *face; | |
5313 | ||
5314 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5315 | for (face = c->buckets[j]; face; face = face->next) | |
5316 | if (face->id == i) | |
5317 | ++n; | |
5318 | ||
5319 | xassert (n == 1); | |
5320 | } | |
5321 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5322 | |
82641697 GM |
5323 | c->faces_by_id[i] = face; |
5324 | if (i == c->used) | |
5325 | ++c->used; | |
5326 | } | |
5327 | ||
5328 | ||
5329 | /* Remove face FACE from cache C. */ | |
5330 | ||
5331 | static void | |
5332 | uncache_face (c, face) | |
5333 | struct face_cache *c; | |
5334 | struct face *face; | |
5335 | { | |
5336 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5337 | |
82641697 GM |
5338 | if (face->prev) |
5339 | face->prev->next = face->next; | |
5340 | else | |
5341 | c->buckets[i] = face->next; | |
178c5d9c | 5342 | |
82641697 GM |
5343 | if (face->next) |
5344 | face->next->prev = face->prev; | |
178c5d9c | 5345 | |
82641697 GM |
5346 | c->faces_by_id[face->id] = NULL; |
5347 | if (face->id == c->used) | |
5348 | --c->used; | |
5349 | } | |
5350 | ||
5351 | ||
5352 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5353 | of frame F. The face will be used to display character C. Value |
5354 | is the ID of the face found. If no suitable face is found, realize | |
5355 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5356 | is a face that has the same attributes. */ |
82641697 GM |
5357 | |
5358 | INLINE int | |
39506348 | 5359 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5360 | struct frame *f; |
5361 | Lisp_Object *attr; | |
39506348 KH |
5362 | int c; |
5363 | struct face *base_face; | |
82641697 | 5364 | { |
39506348 | 5365 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5366 | unsigned hash; |
5367 | int i; | |
5368 | struct face *face; | |
5369 | ||
39506348 | 5370 | xassert (cache != NULL); |
82641697 GM |
5371 | check_lface_attrs (attr); |
5372 | ||
5373 | /* Look up ATTR in the face cache. */ | |
5374 | hash = lface_hash (attr); | |
5375 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5376 | |
39506348 | 5377 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5378 | if (face->hash == hash |
44747bd0 | 5379 | && (!FRAME_WINDOW_P (f) |
39506348 | 5380 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5381 | && lface_equal_p (face->lface, attr)) |
5382 | break; | |
5383 | ||
5384 | /* If not found, realize a new face. */ | |
5385 | if (face == NULL) | |
39506348 | 5386 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5387 | |
5388 | #if GLYPH_DEBUG | |
5389 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5390 | |
5391 | /* When this function is called from face_for_char (in this case, C is | |
5392 | a multibyte character), a fontset of a face returned by | |
5393 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5394 | C) is not sutisfied. The fontset is set for this face by | |
5395 | face_for_char later. */ | |
c87a1fda | 5396 | #if 0 |
c3cee013 | 5397 | if (FRAME_WINDOW_P (f)) |
39506348 | 5398 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5399 | #endif |
82641697 | 5400 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5401 | |
82641697 GM |
5402 | return face->id; |
5403 | } | |
5404 | ||
5405 | ||
5406 | /* Return the face id of the realized face for named face SYMBOL on | |
b5de343d GM |
5407 | frame F suitable for displaying character C. Value is -1 if the |
5408 | face couldn't be determined, which might happen if the default face | |
5409 | isn't realized and cannot be realized. */ | |
82641697 GM |
5410 | |
5411 | int | |
39506348 | 5412 | lookup_named_face (f, symbol, c) |
82641697 GM |
5413 | struct frame *f; |
5414 | Lisp_Object symbol; | |
39506348 | 5415 | int c; |
82641697 GM |
5416 | { |
5417 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5418 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5419 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5420 | ||
b5de343d GM |
5421 | if (default_face == NULL) |
5422 | { | |
5423 | if (!realize_basic_faces (f)) | |
5424 | return -1; | |
5425 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5426 | } | |
5427 | ||
82641697 GM |
5428 | get_lface_attributes (f, symbol, symbol_attrs, 1); |
5429 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5430 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5431 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5432 | } |
5433 | ||
5434 | ||
5435 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5436 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5437 | ||
5438 | int | |
5439 | ascii_face_of_lisp_face (f, lface_id) | |
5440 | struct frame *f; | |
5441 | int lface_id; | |
5442 | { | |
5443 | int face_id; | |
178c5d9c | 5444 | |
82641697 GM |
5445 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5446 | { | |
5447 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 5448 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
5449 | } |
5450 | else | |
5451 | face_id = -1; | |
5452 | ||
5453 | return face_id; | |
5454 | } | |
5455 | ||
5456 | ||
5457 | /* Return a face for charset ASCII that is like the face with id | |
5458 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5459 | STEPS < 0 means larger. Value is the id of the face. */ | |
5460 | ||
5461 | int | |
5462 | smaller_face (f, face_id, steps) | |
5463 | struct frame *f; | |
5464 | int face_id, steps; | |
39506348 | 5465 | { |
c3cee013 | 5466 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5467 | struct face *face; |
5468 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5469 | int pt, last_pt, last_height; | |
5470 | int delta; | |
5471 | int new_face_id; | |
5472 | struct face *new_face; | |
5473 | ||
5474 | /* If not called for an X frame, just return the original face. */ | |
5475 | if (FRAME_TERMCAP_P (f)) | |
5476 | return face_id; | |
5477 | ||
5478 | /* Try in increments of 1/2 pt. */ | |
5479 | delta = steps < 0 ? 5 : -5; | |
5480 | steps = abs (steps); | |
178c5d9c | 5481 | |
82641697 GM |
5482 | face = FACE_FROM_ID (f, face_id); |
5483 | bcopy (face->lface, attrs, sizeof attrs); | |
5484 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5485 | new_face_id = face_id; | |
5486 | last_height = FONT_HEIGHT (face->font); | |
5487 | ||
5488 | while (steps | |
5489 | && pt + delta > 0 | |
5490 | /* Give up if we cannot find a font within 10pt. */ | |
5491 | && abs (last_pt - pt) < 100) | |
5492 | { | |
5493 | /* Look up a face for a slightly smaller/larger font. */ | |
5494 | pt += delta; | |
5495 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5496 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5497 | new_face = FACE_FROM_ID (f, new_face_id); |
5498 | ||
5499 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5500 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5501 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5502 | { |
5503 | --steps; | |
5504 | last_height = FONT_HEIGHT (new_face->font); | |
5505 | last_pt = pt; | |
5506 | } | |
5507 | } | |
5508 | ||
5509 | return new_face_id; | |
5510 | ||
c3cee013 | 5511 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5512 | |
5513 | return face_id; | |
178c5d9c | 5514 | |
c3cee013 | 5515 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5516 | } |
5517 | ||
5518 | ||
5519 | /* Return a face for charset ASCII that is like the face with id | |
5520 | FACE_ID on frame F, but has height HEIGHT. */ | |
5521 | ||
5522 | int | |
5523 | face_with_height (f, face_id, height) | |
5524 | struct frame *f; | |
5525 | int face_id; | |
5526 | int height; | |
5527 | { | |
c3cee013 | 5528 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5529 | struct face *face; |
5530 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5531 | ||
5532 | if (FRAME_TERMCAP_P (f) | |
5533 | || height <= 0) | |
5534 | return face_id; | |
5535 | ||
5536 | face = FACE_FROM_ID (f, face_id); | |
5537 | bcopy (face->lface, attrs, sizeof attrs); | |
5538 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5539 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5540 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5541 | |
82641697 GM |
5542 | return face_id; |
5543 | } | |
5544 | ||
b5de343d | 5545 | |
44747bd0 | 5546 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5547 | frame F suitable for displaying character C, and use attributes of |
5548 | the face FACE_ID for attributes that aren't completely specified by | |
5549 | SYMBOL. This is like lookup_named_face, except that the default | |
5550 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5551 | is assumed to be already realized. */ | |
44747bd0 EZ |
5552 | |
5553 | int | |
39506348 | 5554 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5555 | struct frame *f; |
5556 | Lisp_Object symbol; | |
39506348 | 5557 | int c; |
44747bd0 EZ |
5558 | int face_id; |
5559 | { | |
5560 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5561 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5562 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5563 | ||
5564 | if (!default_face) | |
5565 | abort (); | |
5566 | ||
5567 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5568 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5569 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5570 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5571 | } |
5572 | ||
f6608d5c RS |
5573 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
5574 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 5575 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
5576 | (plist) |
5577 | Lisp_Object plist; | |
5578 | { | |
5579 | Lisp_Object lface; | |
5580 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
5581 | Qunspecified); | |
5582 | merge_face_vector_with_property (XFRAME (selected_frame), | |
5583 | XVECTOR (lface)->contents, | |
5584 | plist); | |
5585 | return lface; | |
5586 | } | |
5587 | ||
82641697 GM |
5588 | |
5589 | \f | |
5590 | /*********************************************************************** | |
5591 | Font selection | |
5592 | ***********************************************************************/ | |
5593 | ||
5594 | DEFUN ("internal-set-font-selection-order", | |
5595 | Finternal_set_font_selection_order, | |
5596 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 5597 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
5598 | ORDER must be a list of length 4 containing the symbols `:width', |
5599 | `:height', `:weight', and `:slant'. Face attributes appearing | |
5600 | first in ORDER are matched first, e.g. if `:height' appears before | |
5601 | `:weight' in ORDER, font selection first tries to find a font with | |
5602 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
5603 | Value is ORDER. */) |
5604 | (order) | |
228299fa | 5605 | Lisp_Object order; |
82641697 GM |
5606 | { |
5607 | Lisp_Object list; | |
5608 | int i; | |
a08332c0 | 5609 | int indices[DIM (font_sort_order)]; |
178c5d9c | 5610 | |
b7826503 | 5611 | CHECK_LIST (order); |
82641697 GM |
5612 | bzero (indices, sizeof indices); |
5613 | i = 0; | |
5614 | ||
5615 | for (list = order; | |
5616 | CONSP (list) && i < DIM (indices); | |
5617 | list = XCDR (list), ++i) | |
5618 | { | |
5619 | Lisp_Object attr = XCAR (list); | |
5620 | int xlfd; | |
5621 | ||
5622 | if (EQ (attr, QCwidth)) | |
5623 | xlfd = XLFD_SWIDTH; | |
5624 | else if (EQ (attr, QCheight)) | |
5625 | xlfd = XLFD_POINT_SIZE; | |
5626 | else if (EQ (attr, QCweight)) | |
5627 | xlfd = XLFD_WEIGHT; | |
5628 | else if (EQ (attr, QCslant)) | |
5629 | xlfd = XLFD_SLANT; | |
5630 | else | |
5631 | break; | |
5632 | ||
5633 | if (indices[i] != 0) | |
5634 | break; | |
5635 | indices[i] = xlfd; | |
5636 | } | |
5637 | ||
a08332c0 | 5638 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 5639 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
5640 | for (i = 0; i < DIM (font_sort_order); ++i) |
5641 | if (indices[i] == 0) | |
5642 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
5643 | |
5644 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5645 | { | |
5646 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5647 | free_all_realized_faces (Qnil); | |
5648 | } | |
178c5d9c | 5649 | |
82641697 GM |
5650 | return Qnil; |
5651 | } | |
5652 | ||
5653 | ||
5654 | DEFUN ("internal-set-alternative-font-family-alist", | |
5655 | Finternal_set_alternative_font_family_alist, | |
5656 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 5657 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
5658 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5659 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
5660 | be found. Value is ALIST. */) |
5661 | (alist) | |
82641697 GM |
5662 | Lisp_Object alist; |
5663 | { | |
b7826503 | 5664 | CHECK_LIST (alist); |
82641697 GM |
5665 | Vface_alternative_font_family_alist = alist; |
5666 | free_all_realized_faces (Qnil); | |
5667 | return alist; | |
5668 | } | |
5669 | ||
5670 | ||
32fcc231 GM |
5671 | DEFUN ("internal-set-alternative-font-registry-alist", |
5672 | Finternal_set_alternative_font_registry_alist, | |
5673 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 5674 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
5675 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5676 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
5677 | be found. Value is ALIST. */) |
5678 | (alist) | |
32fcc231 GM |
5679 | Lisp_Object alist; |
5680 | { | |
b7826503 | 5681 | CHECK_LIST (alist); |
32fcc231 GM |
5682 | Vface_alternative_font_registry_alist = alist; |
5683 | free_all_realized_faces (Qnil); | |
5684 | return alist; | |
5685 | } | |
5686 | ||
5687 | ||
c3cee013 | 5688 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5689 | |
82641697 GM |
5690 | /* Value is non-zero if FONT is the name of a scalable font. The |
5691 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5692 | are zero for scalable fonts. Intlfonts contain at least one | |
5693 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5694 | just test average width. */ | |
5695 | ||
5696 | static int | |
5697 | font_scalable_p (font) | |
5698 | struct font_name *font; | |
5699 | { | |
5700 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5701 | return (*s == '0' && *(s + 1) == '\0') |
5702 | #ifdef WINDOWSNT | |
5703 | /* Windows implementation of XLFD is slightly broken for backward | |
5704 | compatibility with previous broken versions, so test for | |
5705 | wildcards as well as 0. */ | |
5706 | || *s == '*' | |
5707 | #endif | |
5708 | ; | |
82641697 GM |
5709 | } |
5710 | ||
5711 | ||
8e1b21a7 KH |
5712 | /* Ignore the difference of font point size less than this value. */ |
5713 | ||
5714 | #define FONT_POINT_SIZE_QUANTUM 5 | |
5715 | ||
82641697 GM |
5716 | /* Value is non-zero if FONT1 is a better match for font attributes |
5717 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5718 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
5719 | sizes. AVGWIDTH, if not zero, is a specified font average width |
5720 | to compare with. */ | |
82641697 GM |
5721 | |
5722 | static int | |
a08332c0 | 5723 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
5724 | int *values; |
5725 | struct font_name *font1, *font2; | |
a08332c0 | 5726 | int compare_pt_p, avgwidth; |
82641697 GM |
5727 | { |
5728 | int i; | |
178c5d9c | 5729 | |
a08332c0 | 5730 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
5731 | { |
5732 | int xlfd_idx = font_sort_order[i]; | |
5733 | ||
5734 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5735 | { | |
5736 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5737 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
178c5d9c | 5738 | |
8e1b21a7 KH |
5739 | if (xlfd_idx == XLFD_POINT_SIZE |
5740 | && abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
5741 | continue; | |
82641697 GM |
5742 | if (delta1 > delta2) |
5743 | return 0; | |
5744 | else if (delta1 < delta2) | |
5745 | return 1; | |
5746 | else | |
5747 | { | |
5748 | /* The difference may be equal because, e.g., the face | |
5749 | specifies `italic' but we have only `regular' and | |
5750 | `oblique'. Prefer `oblique' in this case. */ | |
5751 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5752 | && font1->numeric[xlfd_idx] > values[i] | |
5753 | && font2->numeric[xlfd_idx] < values[i]) | |
5754 | return 1; | |
5755 | } | |
5756 | } | |
5757 | } | |
178c5d9c | 5758 | |
a08332c0 GM |
5759 | if (avgwidth) |
5760 | { | |
5761 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
5762 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
5763 | if (delta1 > delta2) | |
5764 | return 0; | |
5765 | else if (delta1 < delta2) | |
5766 | return 1; | |
5767 | } | |
5768 | ||
5769 | return font1->registry_priority < font2->registry_priority; | |
82641697 GM |
5770 | } |
5771 | ||
5772 | ||
82641697 GM |
5773 | /* Value is non-zero if FONT is an exact match for face attributes in |
5774 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
5775 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
5776 | with. */ | |
82641697 GM |
5777 | |
5778 | static int | |
a08332c0 | 5779 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
5780 | int *specified; |
5781 | struct font_name *font; | |
a08332c0 | 5782 | int avgwidth; |
82641697 GM |
5783 | { |
5784 | int i; | |
178c5d9c | 5785 | |
a08332c0 | 5786 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
5787 | if (specified[i] != font->numeric[font_sort_order[i]]) |
5788 | break; | |
5789 | ||
a08332c0 GM |
5790 | return (i == DIM (font_sort_order) |
5791 | && (avgwidth <= 0 | |
5792 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
5793 | } |
5794 | ||
5795 | ||
5796 | /* Value is the name of a scaled font, generated from scalable font | |
5797 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5798 | Value is allocated from heap. */ | |
5799 | ||
5800 | static char * | |
5801 | build_scalable_font_name (f, font, specified_pt) | |
5802 | struct frame *f; | |
5803 | struct font_name *font; | |
5804 | int specified_pt; | |
5805 | { | |
5806 | char point_size[20], pixel_size[20]; | |
5807 | int pixel_value; | |
5808 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5809 | double pt; | |
5810 | ||
5811 | /* If scalable font is for a specific resolution, compute | |
5812 | the point size we must specify from the resolution of | |
5813 | the display and the specified resolution of the font. */ | |
5814 | if (font->numeric[XLFD_RESY] != 0) | |
5815 | { | |
5816 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
c660ce4e | 5817 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt; |
82641697 GM |
5818 | } |
5819 | else | |
5820 | { | |
5821 | pt = specified_pt; | |
c660ce4e | 5822 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt; |
82641697 | 5823 | } |
178c5d9c | 5824 | |
82641697 GM |
5825 | /* Set point size of the font. */ |
5826 | sprintf (point_size, "%d", (int) pt); | |
5827 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5828 | font->numeric[XLFD_POINT_SIZE] = pt; | |
178c5d9c | 5829 | |
82641697 GM |
5830 | /* Set pixel size. */ |
5831 | sprintf (pixel_size, "%d", pixel_value); | |
5832 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5833 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 5834 | |
82641697 GM |
5835 | /* If font doesn't specify its resolution, use the |
5836 | resolution of the display. */ | |
5837 | if (font->numeric[XLFD_RESY] == 0) | |
5838 | { | |
5839 | char buffer[20]; | |
5840 | sprintf (buffer, "%d", (int) resy); | |
5841 | font->fields[XLFD_RESY] = buffer; | |
5842 | font->numeric[XLFD_RESY] = resy; | |
5843 | } | |
178c5d9c | 5844 | |
82641697 GM |
5845 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
5846 | { | |
5847 | char buffer[20]; | |
5848 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5849 | sprintf (buffer, "%d", resx); | |
5850 | font->fields[XLFD_RESX] = buffer; | |
5851 | font->numeric[XLFD_RESX] = resx; | |
5852 | } | |
5853 | ||
5854 | return build_font_name (font); | |
5855 | } | |
5856 | ||
5857 | ||
5858 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5859 | can't run a Lisp function here since this function may be called | |
5860 | with input blocked. */ | |
5861 | ||
5862 | static int | |
702a1e8e GM |
5863 | may_use_scalable_font_p (font) |
5864 | char *font; | |
82641697 GM |
5865 | { |
5866 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5867 | return 1; | |
5868 | else if (CONSP (Vscalable_fonts_allowed)) | |
5869 | { | |
5870 | Lisp_Object tail, regexp; | |
178c5d9c | 5871 | |
82641697 GM |
5872 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
5873 | { | |
5874 | regexp = XCAR (tail); | |
5875 | if (STRINGP (regexp) | |
702a1e8e | 5876 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
5877 | return 1; |
5878 | } | |
5879 | } | |
178c5d9c | 5880 | |
82641697 GM |
5881 | return 0; |
5882 | } | |
5883 | ||
82641697 GM |
5884 | |
5885 | ||
2e6621ca GM |
5886 | /* Return the name of the best matching font for face attributes ATTRS |
5887 | in the array of font_name structures FONTS which contains NFONTS | |
5888 | elements. WIDTH_RATIO is a factor with which to multiply average | |
5889 | widths if ATTRS specifies such a width. | |
5890 | ||
5891 | Value is a font name which is allocated from the heap. FONTS is | |
5892 | freed by this function. */ | |
82641697 GM |
5893 | |
5894 | static char * | |
2e6621ca | 5895 | best_matching_font (f, attrs, fonts, nfonts, width_ratio) |
82641697 GM |
5896 | struct frame *f; |
5897 | Lisp_Object *attrs; | |
5898 | struct font_name *fonts; | |
5899 | int nfonts; | |
2e6621ca | 5900 | int width_ratio; |
82641697 GM |
5901 | { |
5902 | char *font_name; | |
5903 | struct font_name *best; | |
334a2e2a | 5904 | int i, pt = 0; |
a08332c0 GM |
5905 | int specified[5]; |
5906 | int exact_p, avgwidth; | |
82641697 GM |
5907 | |
5908 | if (nfonts == 0) | |
5909 | return NULL; | |
5910 | ||
5911 | /* Make specified font attributes available in `specified', | |
5912 | indexed by sort order. */ | |
5913 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5914 | { | |
5915 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 5916 | |
82641697 GM |
5917 | if (xlfd_idx == XLFD_SWIDTH) |
5918 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5919 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5920 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5921 | else if (xlfd_idx == XLFD_WEIGHT) | |
5922 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5923 | else if (xlfd_idx == XLFD_SLANT) | |
5924 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5925 | else | |
5926 | abort (); | |
5927 | } | |
5928 | ||
a08332c0 GM |
5929 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
5930 | ? 0 | |
2e6621ca | 5931 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 5932 | |
82641697 | 5933 | exact_p = 0; |
178c5d9c | 5934 | |
82641697 GM |
5935 | /* Start with the first non-scalable font in the list. */ |
5936 | for (i = 0; i < nfonts; ++i) | |
5937 | if (!font_scalable_p (fonts + i)) | |
5938 | break; | |
5939 | ||
5940 | /* Find the best match among the non-scalable fonts. */ | |
5941 | if (i < nfonts) | |
5942 | { | |
5943 | best = fonts + i; | |
178c5d9c | 5944 | |
82641697 GM |
5945 | for (i = 1; i < nfonts; ++i) |
5946 | if (!font_scalable_p (fonts + i) | |
a08332c0 | 5947 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) |
82641697 GM |
5948 | { |
5949 | best = fonts + i; | |
5950 | ||
a08332c0 | 5951 | exact_p = exact_face_match_p (specified, best, avgwidth); |
82641697 GM |
5952 | if (exact_p) |
5953 | break; | |
5954 | } | |
178c5d9c | 5955 | |
82641697 GM |
5956 | } |
5957 | else | |
5958 | best = NULL; | |
5959 | ||
5960 | /* Unless we found an exact match among non-scalable fonts, see if | |
5961 | we can find a better match among scalable fonts. */ | |
5962 | if (!exact_p) | |
5963 | { | |
5964 | /* A scalable font is better if | |
5965 | ||
5966 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 5967 | |
82641697 GM |
5968 | 2. the best non-scalable font doesn't have the required |
5969 | point size, and the scalable fonts weight, slant, swidth | |
5970 | isn't worse. */ | |
5971 | ||
5972 | int non_scalable_has_exact_height_p; | |
5973 | ||
5974 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5975 | non_scalable_has_exact_height_p = 1; | |
5976 | else | |
5977 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 5978 | |
82641697 GM |
5979 | for (i = 0; i < nfonts; ++i) |
5980 | if (font_scalable_p (fonts + i)) | |
5981 | { | |
5982 | if (best == NULL | |
a08332c0 | 5983 | || better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 5984 | || (!non_scalable_has_exact_height_p |
a08332c0 | 5985 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
82641697 GM |
5986 | best = fonts + i; |
5987 | } | |
5988 | } | |
5989 | ||
5990 | if (font_scalable_p (best)) | |
5991 | font_name = build_scalable_font_name (f, best, pt); | |
5992 | else | |
5993 | font_name = build_font_name (best); | |
178c5d9c | 5994 | |
82641697 GM |
5995 | /* Free font_name structures. */ |
5996 | free_font_names (fonts, nfonts); | |
178c5d9c | 5997 | |
82641697 GM |
5998 | return font_name; |
5999 | } | |
6000 | ||
6001 | ||
3cf80731 SM |
6002 | /* Get a list of matching fonts on frame F, considering FAMILY |
6003 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
6004 | |
6005 | FAMILY is the font family whose alternatives are considered. | |
6006 | ||
6007 | REGISTRY, if a string, specifies a font registry and encoding to | |
6008 | match. A value of nil means include fonts of any registry and | |
6009 | encoding. | |
6010 | ||
6011 | Return in *FONTS a pointer to a vector of font_name structures for | |
6012 | the fonts matched. Value is the number of fonts found. */ | |
6013 | ||
6014 | static int | |
6015 | try_alternative_families (f, family, registry, fonts) | |
6016 | struct frame *f; | |
6017 | Lisp_Object family, registry; | |
6018 | struct font_name **fonts; | |
6019 | { | |
6020 | Lisp_Object alter; | |
6021 | int nfonts = 0; | |
6022 | ||
3cf80731 SM |
6023 | nfonts = font_list (f, Qnil, family, registry, fonts); |
6024 | if (nfonts == 0) | |
4a529c42 | 6025 | { |
3cf80731 SM |
6026 | /* Try alternative font families. */ |
6027 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
6028 | if (CONSP (alter)) | |
6029 | { | |
6030 | for (alter = XCDR (alter); | |
6031 | CONSP (alter) && nfonts == 0; | |
6032 | alter = XCDR (alter)) | |
6033 | { | |
6034 | if (STRINGP (XCAR (alter))) | |
6035 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
6036 | } | |
6037 | } | |
6038 | ||
6039 | /* Try scalable fonts before giving up. */ | |
6040 | if (nfonts == 0 && NILP (Vscalable_fonts_allowed)) | |
4a529c42 | 6041 | { |
3cf80731 SM |
6042 | int count = BINDING_STACK_SIZE (); |
6043 | specbind (Qscalable_fonts_allowed, Qt); | |
6044 | nfonts = try_alternative_families (f, family, registry, fonts); | |
6045 | unbind_to (count, Qnil); | |
4a529c42 GM |
6046 | } |
6047 | } | |
4a529c42 GM |
6048 | return nfonts; |
6049 | } | |
6050 | ||
6051 | ||
702a1e8e GM |
6052 | /* Get a list of matching fonts on frame F. |
6053 | ||
3cf80731 SM |
6054 | FAMILY, if a string, specifies a font family derived from the fontset. |
6055 | It is only used if the face does not specify any family in ATTRS or | |
6056 | if we cannot find any font of the face's family. | |
702a1e8e GM |
6057 | |
6058 | REGISTRY, if a string, specifies a font registry and encoding to | |
6059 | match. A value of nil means include fonts of any registry and | |
6060 | encoding. | |
6061 | ||
6062 | Return in *FONTS a pointer to a vector of font_name structures for | |
6063 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
6064 | |
6065 | static int | |
702a1e8e | 6066 | try_font_list (f, attrs, family, registry, fonts) |
82641697 GM |
6067 | struct frame *f; |
6068 | Lisp_Object *attrs; | |
702a1e8e | 6069 | Lisp_Object family, registry; |
82641697 GM |
6070 | struct font_name **fonts; |
6071 | { | |
4a529c42 | 6072 | int nfonts = 0; |
3cf80731 | 6073 | Lisp_Object face_family = attrs[LFACE_FAMILY_INDEX]; |
82641697 | 6074 | |
3d79abfb | 6075 | if (!NILP (family)) |
3cf80731 | 6076 | nfonts = try_alternative_families (f, family, registry, fonts); |
178c5d9c | 6077 | |
3d79abfb KH |
6078 | if (nfonts == 0 && STRINGP (face_family)) |
6079 | nfonts = try_alternative_families (f, face_family, registry, fonts); | |
6080 | ||
3cf80731 | 6081 | /* Try font family of the default face or "fixed". */ |
4a529c42 | 6082 | if (nfonts == 0) |
82641697 | 6083 | { |
3cf80731 SM |
6084 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6085 | if (default_face) | |
6086 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
6087 | else | |
6088 | family = build_string ("fixed"); | |
4a529c42 | 6089 | nfonts = font_list (f, Qnil, family, registry, fonts); |
82641697 | 6090 | } |
3cf80731 SM |
6091 | |
6092 | /* Try any family with the given registry. */ | |
6093 | if (nfonts == 0) | |
6094 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
82641697 GM |
6095 | |
6096 | return nfonts; | |
6097 | } | |
6098 | ||
82641697 | 6099 | |
39506348 KH |
6100 | /* Return the fontset id of the base fontset name or alias name given |
6101 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
6102 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
6103 | |
6104 | static int | |
39506348 | 6105 | face_fontset (attrs) |
82641697 GM |
6106 | Lisp_Object *attrs; |
6107 | { | |
39506348 | 6108 | Lisp_Object name; |
178c5d9c | 6109 | |
39506348 KH |
6110 | name = attrs[LFACE_FONT_INDEX]; |
6111 | if (!STRINGP (name)) | |
6112 | return -1; | |
6113 | return fs_query_fontset (name, 0); | |
82641697 GM |
6114 | } |
6115 | ||
6116 | ||
39506348 KH |
6117 | /* Choose a name of font to use on frame F to display character C with |
6118 | Lisp face attributes specified by ATTRS. The font name is | |
6119 | determined by the font-related attributes in ATTRS and the name | |
81b39386 KH |
6120 | pattern for C in FACE->fontset (or Vdefault_fontset if FACE is |
6121 | null). Value is the font name which is allocated from the heap and | |
6122 | must be freed by the caller, or NULL if we can get no information | |
6123 | about the font name of C. It is assured that we always get some | |
6124 | information for a single byte character. */ | |
82641697 GM |
6125 | |
6126 | static char * | |
81b39386 | 6127 | choose_face_font (f, attrs, face, c) |
82641697 GM |
6128 | struct frame *f; |
6129 | Lisp_Object *attrs; | |
81b39386 KH |
6130 | struct face *face; |
6131 | int c; | |
82641697 | 6132 | { |
81b39386 KH |
6133 | Lisp_Object val; |
6134 | Lisp_Object pattern, family, registry; | |
6135 | Lisp_Object new_attrs[LFACE_VECTOR_SIZE]; | |
82641697 | 6136 | char *font_name = NULL; |
82641697 | 6137 | struct font_name *fonts; |
2e6621ca | 6138 | int nfonts, width_ratio; |
178c5d9c | 6139 | |
81b39386 KH |
6140 | /* Get font spec of a font for C. */ |
6141 | pattern = fontset_font_pattern (f, face, c); | |
39506348 KH |
6142 | if (NILP (pattern)) |
6143 | { | |
6144 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
6145 | return NULL; | |
6146 | } | |
4a529c42 | 6147 | |
39506348 KH |
6148 | /* If what we got is a name pattern, return it. */ |
6149 | if (STRINGP (pattern)) | |
6150 | return xstrdup (XSTRING (pattern)->data); | |
82641697 | 6151 | |
81b39386 KH |
6152 | family = AREF (pattern, FONT_SPEC_FAMILY_INDEX); |
6153 | registry = AREF (pattern, FONT_SPEC_REGISTRY_INDEX); | |
6154 | ||
6155 | bcopy (attrs, new_attrs, sizeof (Lisp_Object) * LFACE_VECTOR_SIZE); | |
6156 | ||
6157 | #if 0 | |
6158 | /* This doesn't work well for the moment. */ | |
6159 | if (! NILP (AREF (pattern, FONT_SPEC_WEIGHT_INDEX))) | |
6160 | new_attrs[LFACE_WEIGHT_INDEX] = AREF (pattern, FONT_SPEC_WEIGHT_INDEX); | |
6161 | if (! NILP (AREF (pattern, FONT_SPEC_SLANT_INDEX))) | |
6162 | new_attrs[LFACE_SLANT_INDEX] = AREF (pattern, FONT_SPEC_SLANT_INDEX); | |
6163 | if (! NILP (AREF (pattern, FONT_SPEC_SWIDTH_INDEX))) | |
6164 | new_attrs[LFACE_SWIDTH_INDEX] = AREF (pattern, FONT_SPEC_SWIDTH_INDEX); | |
6165 | #endif | |
6166 | ||
6167 | /* If C is an ASCII character, family name in ATTRS has higher | |
6168 | priority than what specified in the fontset. */ | |
6169 | if (STRINGP (attrs[LFACE_FAMILY_INDEX]) | |
6170 | && ASCII_CHAR_P (c)) | |
6171 | family = Qnil; | |
6172 | ||
178c5d9c | 6173 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 6174 | best match for the specified face attributes from it. */ |
81b39386 KH |
6175 | nfonts = try_font_list (f, new_attrs, family, registry, &fonts); |
6176 | width_ratio = (ASCII_CHAR_P (c) | |
2e6621ca | 6177 | ? 1 |
81b39386 KH |
6178 | : CHAR_WIDTH (c)); |
6179 | font_name = best_matching_font (f, new_attrs, fonts, nfonts, width_ratio); | |
82641697 GM |
6180 | return font_name; |
6181 | } | |
6182 | ||
c3cee013 | 6183 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6184 | |
6185 | ||
6186 | \f | |
6187 | /*********************************************************************** | |
6188 | Face Realization | |
6189 | ***********************************************************************/ | |
6190 | ||
6191 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
6192 | of F don't contain enough information needed to realize the default | |
6193 | face. */ | |
6194 | ||
6195 | static int | |
6196 | realize_basic_faces (f) | |
6197 | struct frame *f; | |
6198 | { | |
6199 | int success_p = 0; | |
eeffb293 | 6200 | int count = BINDING_STACK_SIZE (); |
17e8204b | 6201 | |
04386463 GM |
6202 | /* Block input here so that we won't be surprised by an X expose |
6203 | event, for instance, without having the faces set up. */ | |
17e8204b | 6204 | BLOCK_INPUT; |
eeffb293 | 6205 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 6206 | |
82641697 GM |
6207 | if (realize_default_face (f)) |
6208 | { | |
92610620 | 6209 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 6210 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 6211 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 6212 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 6213 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
6214 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
6215 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
6216 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
6217 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 6218 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
563f68f1 | 6219 | |
b5de343d | 6220 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 6221 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 6222 | { |
ceeda019 | 6223 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 6224 | #ifdef USE_X_TOOLKIT |
bce72079 | 6225 | x_update_menu_appearance (f); |
a03ad468 | 6226 | #endif |
563f68f1 GM |
6227 | } |
6228 | ||
82641697 GM |
6229 | success_p = 1; |
6230 | } | |
6231 | ||
eeffb293 | 6232 | unbind_to (count, Qnil); |
17e8204b | 6233 | UNBLOCK_INPUT; |
82641697 GM |
6234 | return success_p; |
6235 | } | |
6236 | ||
6237 | ||
6238 | /* Realize the default face on frame F. If the face is not fully | |
6239 | specified, make it fully-specified. Attributes of the default face | |
6240 | that are not explicitly specified are taken from frame parameters. */ | |
6241 | ||
6242 | static int | |
6243 | realize_default_face (f) | |
6244 | struct frame *f; | |
6245 | { | |
6246 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6247 | Lisp_Object lface; | |
6248 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6249 | Lisp_Object frame_font; |
6250 | struct face *face; | |
82641697 GM |
6251 | |
6252 | /* If the `default' face is not yet known, create it. */ | |
6253 | lface = lface_from_face_name (f, Qdefault, 0); | |
6254 | if (NILP (lface)) | |
6255 | { | |
6256 | Lisp_Object frame; | |
6257 | XSETFRAME (frame, f); | |
6258 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
6259 | } | |
6260 | ||
c3cee013 JR |
6261 | #ifdef HAVE_WINDOW_SYSTEM |
6262 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
6263 | { |
6264 | /* Set frame_font to the value of the `font' frame parameter. */ | |
6265 | frame_font = Fassq (Qfont, f->param_alist); | |
6266 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
6267 | frame_font = XCDR (frame_font); | |
8cdeb3f2 | 6268 | set_lface_from_font_name (f, lface, frame_font, 1, 1); |
82641697 | 6269 | } |
c3cee013 | 6270 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6271 | |
44747bd0 | 6272 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
6273 | { |
6274 | LFACE_FAMILY (lface) = build_string ("default"); | |
6275 | LFACE_SWIDTH (lface) = Qnormal; | |
6276 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
6277 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
6278 | LFACE_WEIGHT (lface) = Qnormal; | |
6279 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
6280 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 6281 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 6282 | } |
178c5d9c | 6283 | |
82641697 GM |
6284 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
6285 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 6286 | |
82641697 GM |
6287 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
6288 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 6289 | |
82641697 GM |
6290 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
6291 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 6292 | |
82641697 GM |
6293 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
6294 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 6295 | |
82641697 GM |
6296 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
6297 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 6298 | |
82641697 GM |
6299 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
6300 | { | |
6301 | /* This function is called so early that colors are not yet | |
6302 | set in the frame parameter list. */ | |
6303 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 6304 | |
82641697 GM |
6305 | if (CONSP (color) && STRINGP (XCDR (color))) |
6306 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 6307 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6308 | return 0; |
e689ec06 | 6309 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6310 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 6311 | else |
82641697 GM |
6312 | abort (); |
6313 | } | |
178c5d9c | 6314 | |
82641697 GM |
6315 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
6316 | { | |
6317 | /* This function is called so early that colors are not yet | |
6318 | set in the frame parameter list. */ | |
6319 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
6320 | if (CONSP (color) && STRINGP (XCDR (color))) | |
6321 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 6322 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6323 | return 0; |
e689ec06 | 6324 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6325 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 6326 | else |
82641697 GM |
6327 | abort (); |
6328 | } | |
178c5d9c | 6329 | |
82641697 GM |
6330 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
6331 | LFACE_STIPPLE (lface) = Qnil; | |
6332 | ||
6333 | /* Realize the face; it must be fully-specified now. */ | |
6334 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
6335 | check_lface (lface); | |
6336 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 6337 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
6338 | return 1; |
6339 | } | |
6340 | ||
6341 | ||
6342 | /* Realize basic faces other than the default face in face cache C. | |
6343 | SYMBOL is the face name, ID is the face id the realized face must | |
6344 | have. The default face must have been realized already. */ | |
6345 | ||
6346 | static void | |
6347 | realize_named_face (f, symbol, id) | |
6348 | struct frame *f; | |
6349 | Lisp_Object symbol; | |
6350 | int id; | |
6351 | { | |
6352 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6353 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
6354 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6355 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6356 | struct face *new_face; | |
6357 | ||
6358 | /* The default face must exist and be fully specified. */ | |
6359 | get_lface_attributes (f, Qdefault, attrs, 1); | |
6360 | check_lface_attrs (attrs); | |
6361 | xassert (lface_fully_specified_p (attrs)); | |
6362 | ||
6363 | /* If SYMBOL isn't know as a face, create it. */ | |
6364 | if (NILP (lface)) | |
6365 | { | |
6366 | Lisp_Object frame; | |
6367 | XSETFRAME (frame, f); | |
6368 | lface = Finternal_make_lisp_face (symbol, frame); | |
6369 | } | |
6370 | ||
6371 | /* Merge SYMBOL's face with the default face. */ | |
6372 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
2c20458f | 6373 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
82641697 GM |
6374 | |
6375 | /* Realize the face. */ | |
39506348 | 6376 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
6377 | } |
6378 | ||
6379 | ||
6380 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6381 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
6382 | BASE_FACE is a face that has the same attributes. Otherwise, |
6383 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
6384 | ID of face to remove before caching the new face. Value is a | |
6385 | pointer to the newly created realized face. */ | |
82641697 GM |
6386 | |
6387 | static struct face * | |
39506348 KH |
6388 | realize_face (cache, attrs, c, base_face, former_face_id) |
6389 | struct face_cache *cache; | |
82641697 | 6390 | Lisp_Object *attrs; |
39506348 KH |
6391 | int c; |
6392 | struct face *base_face; | |
6393 | int former_face_id; | |
82641697 GM |
6394 | { |
6395 | struct face *face; | |
178c5d9c | 6396 | |
82641697 | 6397 | /* LFACE must be fully specified. */ |
39506348 | 6398 | xassert (cache != NULL); |
82641697 GM |
6399 | check_lface_attrs (attrs); |
6400 | ||
39506348 KH |
6401 | if (former_face_id >= 0 && cache->used > former_face_id) |
6402 | { | |
6403 | /* Remove the former face. */ | |
6404 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
6405 | uncache_face (cache, former_face); | |
6406 | free_realized_face (cache->f, former_face); | |
6407 | } | |
6408 | ||
6409 | if (FRAME_WINDOW_P (cache->f)) | |
6410 | face = realize_x_face (cache, attrs, c, base_face); | |
e689ec06 | 6411 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
39506348 | 6412 | face = realize_tty_face (cache, attrs, c); |
82641697 GM |
6413 | else |
6414 | abort (); | |
6415 | ||
39506348 KH |
6416 | /* Insert the new face. */ |
6417 | cache_face (cache, face, lface_hash (attrs)); | |
6418 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 6419 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
6420 | load_face_font (cache->f, face, c); |
6421 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
6422 | return face; |
6423 | } | |
6424 | ||
6425 | ||
6426 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6427 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
6428 | a multibyte character, BASE_FACE is a face that has the same |
6429 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
6430 | doesn't share font with the default face, a fontname is allocated | |
6431 | from the heap and set in `font_name' of the new face, but it is not | |
6432 | yet loaded here. Value is a pointer to the newly created realized | |
6433 | face. */ | |
82641697 GM |
6434 | |
6435 | static struct face * | |
39506348 KH |
6436 | realize_x_face (cache, attrs, c, base_face) |
6437 | struct face_cache *cache; | |
82641697 | 6438 | Lisp_Object *attrs; |
39506348 KH |
6439 | int c; |
6440 | struct face *base_face; | |
82641697 | 6441 | { |
c3cee013 | 6442 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6443 | struct face *face, *default_face; |
78d2079c | 6444 | struct frame *f; |
82641697 | 6445 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 6446 | |
39506348 KH |
6447 | xassert (FRAME_WINDOW_P (cache->f)); |
6448 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 6449 | || base_face); |
82641697 GM |
6450 | |
6451 | /* Allocate a new realized face. */ | |
39506348 KH |
6452 | face = make_realized_face (attrs); |
6453 | ||
6454 | f = cache->f; | |
6455 | ||
81b39386 | 6456 | /* If C is a non-ASCII character, we share all face attirbutes with |
39506348 KH |
6457 | BASE_FACE including the realized fontset. But, we must load a |
6458 | different font. */ | |
81b39386 | 6459 | if (! ASCII_CHAR_P (c)) |
39506348 KH |
6460 | { |
6461 | bcopy (base_face, face, sizeof *face); | |
6462 | face->gc = 0; | |
e911049b GM |
6463 | |
6464 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
28a072fe | 6465 | face->colors_copied_bitwise_p = 1; |
178c5d9c | 6466 | |
e911049b GM |
6467 | /* to force realize_face to load font */ |
6468 | face->font = NULL; | |
39506348 KH |
6469 | return face; |
6470 | } | |
6471 | ||
6472 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
6473 | |
6474 | /* Determine the font to use. Most of the time, the font will be | |
6475 | the same as the font of the default face, so try that first. */ | |
6476 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6477 | if (default_face | |
39506348 | 6478 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
6479 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
6480 | { | |
6481 | face->font = default_face->font; | |
6482 | face->fontset = default_face->fontset; | |
6483 | face->font_info_id = default_face->font_info_id; | |
6484 | face->font_name = default_face->font_name; | |
39506348 | 6485 | face->ascii_face = face; |
82641697 | 6486 | |
39506348 KH |
6487 | /* But, as we can't share the fontset, make a new realized |
6488 | fontset that has the same base fontset as of the default | |
6489 | face. */ | |
6490 | face->fontset | |
6491 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
6492 | } |
6493 | else | |
6494 | { | |
39506348 | 6495 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
6496 | the base of a new realized fontset. Otherwise, use the same |
6497 | base fontset as of the default face. The base determines | |
6498 | registry and encoding of a font. It may also determine | |
6499 | foundry and family. The other fields of font name pattern | |
6500 | are constructed from ATTRS. */ | |
6501 | int fontset = face_fontset (attrs); | |
6502 | ||
178c5d9c | 6503 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
6504 | fontset = default_face->fontset; |
6505 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 6506 | face->font = NULL; /* to force realize_face to load font */ |
1a578e9b AC |
6507 | |
6508 | #ifdef macintosh | |
6509 | /* Load the font if it is specified in ATTRS. This fixes | |
6510 | changing frame font on the Mac. */ | |
6511 | if (STRINGP (attrs[LFACE_FONT_INDEX])) | |
6512 | { | |
6513 | struct font_info *font_info = | |
81b39386 | 6514 | FS_LOAD_FONT (f, XSTRING (attrs[LFACE_FONT_INDEX])->data); |
1a578e9b AC |
6515 | if (font_info) |
6516 | face->font = font_info->font; | |
6517 | } | |
6518 | #endif | |
82641697 GM |
6519 | } |
6520 | ||
6521 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 6522 | |
82641697 | 6523 | load_face_colors (f, face, attrs); |
660ed669 | 6524 | |
82641697 GM |
6525 | /* Set up box. */ |
6526 | box = attrs[LFACE_BOX_INDEX]; | |
6527 | if (STRINGP (box)) | |
cb637678 | 6528 | { |
82641697 GM |
6529 | /* A simple box of line width 1 drawn in color given by |
6530 | the string. */ | |
6531 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
6532 | LFACE_BOX_INDEX); | |
6533 | face->box = FACE_SIMPLE_BOX; | |
6534 | face->box_line_width = 1; | |
cb637678 | 6535 | } |
82641697 | 6536 | else if (INTEGERP (box)) |
42120bc7 | 6537 | { |
82641697 GM |
6538 | /* Simple box of specified line width in foreground color of the |
6539 | face. */ | |
89624b8b | 6540 | xassert (XINT (box) != 0); |
82641697 | 6541 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 6542 | face->box_line_width = XINT (box); |
82641697 GM |
6543 | face->box_color = face->foreground; |
6544 | face->box_color_defaulted_p = 1; | |
6545 | } | |
6546 | else if (CONSP (box)) | |
6547 | { | |
6548 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
6549 | being one of `raised' or `sunken'. */ | |
6550 | face->box = FACE_SIMPLE_BOX; | |
6551 | face->box_color = face->foreground; | |
6552 | face->box_color_defaulted_p = 1; | |
6553 | face->box_line_width = 1; | |
6554 | ||
6555 | while (CONSP (box)) | |
42120bc7 | 6556 | { |
82641697 GM |
6557 | Lisp_Object keyword, value; |
6558 | ||
6559 | keyword = XCAR (box); | |
6560 | box = XCDR (box); | |
6561 | ||
6562 | if (!CONSP (box)) | |
6563 | break; | |
6564 | value = XCAR (box); | |
6565 | box = XCDR (box); | |
6566 | ||
6567 | if (EQ (keyword, QCline_width)) | |
6568 | { | |
89624b8b KH |
6569 | if (INTEGERP (value) && XINT (value) != 0) |
6570 | face->box_line_width = XINT (value); | |
82641697 GM |
6571 | } |
6572 | else if (EQ (keyword, QCcolor)) | |
6573 | { | |
6574 | if (STRINGP (value)) | |
6575 | { | |
6576 | face->box_color = load_color (f, face, value, | |
6577 | LFACE_BOX_INDEX); | |
6578 | face->use_box_color_for_shadows_p = 1; | |
6579 | } | |
6580 | } | |
6581 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 6582 | { |
82641697 GM |
6583 | if (EQ (value, Qreleased_button)) |
6584 | face->box = FACE_RAISED_BOX; | |
6585 | else if (EQ (value, Qpressed_button)) | |
6586 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 6587 | } |
42120bc7 RS |
6588 | } |
6589 | } | |
195f798e | 6590 | |
82641697 | 6591 | /* Text underline, overline, strike-through. */ |
178c5d9c | 6592 | |
82641697 | 6593 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 6594 | { |
82641697 GM |
6595 | /* Use default color (same as foreground color). */ |
6596 | face->underline_p = 1; | |
6597 | face->underline_defaulted_p = 1; | |
6598 | face->underline_color = 0; | |
6599 | } | |
6600 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6601 | { |
82641697 GM |
6602 | /* Use specified color. */ |
6603 | face->underline_p = 1; | |
6604 | face->underline_defaulted_p = 0; | |
6605 | face->underline_color | |
6606 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6607 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6608 | } |
82641697 | 6609 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6610 | { |
82641697 GM |
6611 | face->underline_p = 0; |
6612 | face->underline_defaulted_p = 0; | |
6613 | face->underline_color = 0; | |
7b00de84 JB |
6614 | } |
6615 | ||
82641697 GM |
6616 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6617 | if (STRINGP (overline)) | |
cb637678 | 6618 | { |
82641697 GM |
6619 | face->overline_color |
6620 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6621 | LFACE_OVERLINE_INDEX); | |
6622 | face->overline_p = 1; | |
cb637678 | 6623 | } |
82641697 | 6624 | else if (EQ (overline, Qt)) |
cb637678 | 6625 | { |
82641697 GM |
6626 | face->overline_color = face->foreground; |
6627 | face->overline_color_defaulted_p = 1; | |
6628 | face->overline_p = 1; | |
cb637678 JB |
6629 | } |
6630 | ||
82641697 GM |
6631 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6632 | if (STRINGP (strike_through)) | |
6633 | { | |
6634 | face->strike_through_color | |
6635 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6636 | LFACE_STRIKE_THROUGH_INDEX); | |
6637 | face->strike_through_p = 1; | |
6638 | } | |
6639 | else if (EQ (strike_through, Qt)) | |
6640 | { | |
6641 | face->strike_through_color = face->foreground; | |
6642 | face->strike_through_color_defaulted_p = 1; | |
6643 | face->strike_through_p = 1; | |
6644 | } | |
867dd159 | 6645 | |
82641697 GM |
6646 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6647 | if (!NILP (stipple)) | |
6648 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6649 | |
39506348 | 6650 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6651 | return face; |
c3cee013 | 6652 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6653 | } |
6654 | ||
729425b1 | 6655 | |
ae4b4ba5 GM |
6656 | /* Map a specified color of face FACE on frame F to a tty color index. |
6657 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
6658 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
6659 | default foreground/background colors. */ | |
6660 | ||
6661 | static void | |
6662 | map_tty_color (f, face, idx, defaulted) | |
6663 | struct frame *f; | |
6664 | struct face *face; | |
6665 | enum lface_attribute_index idx; | |
6666 | int *defaulted; | |
6667 | { | |
6668 | Lisp_Object frame, color, def; | |
6669 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
6670 | unsigned long default_pixel, default_other_pixel, pixel; | |
6671 | ||
6672 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
6673 | ||
6674 | if (foreground_p) | |
6675 | { | |
6676 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6677 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6678 | } | |
6679 | else | |
6680 | { | |
6681 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6682 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6683 | } | |
6684 | ||
6685 | XSETFRAME (frame, f); | |
6686 | color = face->lface[idx]; | |
6687 | ||
6688 | if (STRINGP (color) | |
6689 | && XSTRING (color)->size | |
6690 | && CONSP (Vtty_defined_color_alist) | |
6691 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
6692 | CONSP (def))) | |
6693 | { | |
6694 | /* Associations in tty-defined-color-alist are of the form | |
6695 | (NAME INDEX R G B). We need the INDEX part. */ | |
6696 | pixel = XINT (XCAR (XCDR (def))); | |
6697 | } | |
6698 | ||
6699 | if (pixel == default_pixel && STRINGP (color)) | |
6700 | { | |
6701 | pixel = load_color (f, face, color, idx); | |
6702 | ||
6703 | #if defined (MSDOS) || defined (WINDOWSNT) | |
6704 | /* If the foreground of the default face is the default color, | |
6705 | use the foreground color defined by the frame. */ | |
6706 | #ifdef MSDOS | |
6707 | if (FRAME_MSDOS_P (f)) | |
6708 | { | |
6709 | #endif /* MSDOS */ | |
6710 | if (pixel == default_pixel | |
6711 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
6712 | { | |
6713 | if (foreground_p) | |
6714 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6715 | else | |
6716 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6717 | face->lface[idx] = tty_color_name (f, pixel); | |
6718 | *defaulted = 1; | |
6719 | } | |
6720 | else if (pixel == default_other_pixel) | |
6721 | { | |
6722 | if (foreground_p) | |
6723 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6724 | else | |
6725 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6726 | face->lface[idx] = tty_color_name (f, pixel); | |
6727 | *defaulted = 1; | |
6728 | } | |
6729 | #ifdef MSDOS | |
6730 | } | |
6731 | #endif | |
6732 | #endif /* MSDOS or WINDOWSNT */ | |
6733 | } | |
6734 | ||
6735 | if (foreground_p) | |
6736 | face->foreground = pixel; | |
6737 | else | |
6738 | face->background = pixel; | |
6739 | } | |
6740 | ||
6741 | ||
82641697 | 6742 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
6743 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
6744 | pointer to the newly created realized face. */ | |
a8517066 | 6745 | |
82641697 | 6746 | static struct face * |
39506348 KH |
6747 | realize_tty_face (cache, attrs, c) |
6748 | struct face_cache *cache; | |
82641697 | 6749 | Lisp_Object *attrs; |
39506348 | 6750 | int c; |
82641697 GM |
6751 | { |
6752 | struct face *face; | |
6753 | int weight, slant; | |
2d764c78 | 6754 | int face_colors_defaulted = 0; |
ae4b4ba5 | 6755 | struct frame *f = cache->f; |
729425b1 | 6756 | |
82641697 | 6757 | /* Frame must be a termcap frame. */ |
e689ec06 | 6758 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 6759 | |
82641697 | 6760 | /* Allocate a new realized face. */ |
39506348 | 6761 | face = make_realized_face (attrs); |
e689ec06 | 6762 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 6763 | |
178c5d9c | 6764 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
6765 | dimmed text because we want italic text to appear differently |
6766 | and because dimmed text is probably used infrequently. */ | |
6767 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6768 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6769 | ||
6770 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6771 | face->tty_bold_p = 1; | |
6772 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6773 | face->tty_dim_p = 1; | |
6774 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6775 | face->tty_underline_p = 1; | |
6776 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6777 | face->tty_reverse_p = 1; | |
6778 | ||
6779 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
6780 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
6781 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
6782 | ||
2d764c78 EZ |
6783 | /* Swap colors if face is inverse-video. If the colors are taken |
6784 | from the frame colors, they are already inverted, since the | |
6785 | frame-creation function calls x-handle-reverse-video. */ | |
6786 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6787 | { |
6788 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
6789 | face->foreground = face->background; |
6790 | face->background = tem; | |
6791 | } | |
44747bd0 | 6792 | |
a4a76b61 GM |
6793 | if (tty_suppress_bold_inverse_default_colors_p |
6794 | && face->tty_bold_p | |
6795 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
6796 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6797 | face->tty_bold_p = 0; | |
6798 | ||
82641697 | 6799 | return face; |
729425b1 | 6800 | } |
867dd159 | 6801 | |
82641697 | 6802 | |
a4a76b61 GM |
6803 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
6804 | Ftty_suppress_bold_inverse_default_colors, | |
6805 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 6806 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
6807 | SUPPRESS non-nil means suppress it. |
6808 | This affects bold faces on TTYs whose foreground is the default background | |
6809 | color of the display and whose background is the default foreground color. | |
6810 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
6811 | is non-nil. */) |
6812 | (suppress) | |
a4a76b61 GM |
6813 | Lisp_Object suppress; |
6814 | { | |
6815 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
6816 | ++face_change_count; | |
6817 | return suppress; | |
6818 | } | |
6819 | ||
6820 | ||
82641697 GM |
6821 | \f |
6822 | /*********************************************************************** | |
6823 | Computing Faces | |
6824 | ***********************************************************************/ | |
6825 | ||
6826 | /* Return the ID of the face to use to display character CH with face | |
6827 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6828 | |
6829 | int | |
82641697 | 6830 | compute_char_face (f, ch, prop) |
2e16580f | 6831 | struct frame *f; |
82641697 GM |
6832 | int ch; |
6833 | Lisp_Object prop; | |
2e16580f | 6834 | { |
82641697 | 6835 | int face_id; |
39506348 KH |
6836 | |
6837 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 6838 | ch = 0; |
178c5d9c | 6839 | |
82641697 | 6840 | if (NILP (prop)) |
39506348 KH |
6841 | { |
6842 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6843 | face_id = FACE_FOR_CHAR (f, face, ch); | |
6844 | } | |
82641697 | 6845 | else |
2e16580f | 6846 | { |
82641697 GM |
6847 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6848 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6849 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6850 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 6851 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
6852 | } |
6853 | ||
82641697 | 6854 | return face_id; |
2e16580f | 6855 | } |
bc0db68d | 6856 | |
82641697 GM |
6857 | /* Return the face ID associated with buffer position POS for |
6858 | displaying ASCII characters. Return in *ENDPTR the position at | |
6859 | which a different face is needed, as far as text properties and | |
6860 | overlays are concerned. W is a window displaying current_buffer. | |
6861 | ||
6862 | REGION_BEG, REGION_END delimit the region, so it can be | |
6863 | highlighted. | |
6f134486 | 6864 | |
82641697 GM |
6865 | LIMIT is a position not to scan beyond. That is to limit the time |
6866 | this function can take. | |
6867 | ||
6868 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6869 | ||
39506348 | 6870 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 6871 | |
cb637678 | 6872 | int |
82641697 GM |
6873 | face_at_buffer_position (w, pos, region_beg, region_end, |
6874 | endptr, limit, mouse) | |
f211082d | 6875 | struct window *w; |
7b7739b1 | 6876 | int pos; |
bc0db68d | 6877 | int region_beg, region_end; |
7b7739b1 | 6878 | int *endptr; |
b349f4fb | 6879 | int limit; |
6f134486 | 6880 | int mouse; |
7b7739b1 | 6881 | { |
82641697 GM |
6882 | struct frame *f = XFRAME (w->frame); |
6883 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6884 | Lisp_Object prop, position; |
82641697 | 6885 | int i, noverlays; |
7b7739b1 | 6886 | Lisp_Object *overlay_vec; |
f211082d | 6887 | Lisp_Object frame; |
f6b98e0b | 6888 | int endpos; |
82641697 GM |
6889 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6890 | Lisp_Object limit1, end; | |
6891 | struct face *default_face; | |
f6b98e0b JB |
6892 | |
6893 | /* W must display the current buffer. We could write this function | |
6894 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6895 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6896 | |
ac22a6c4 | 6897 | XSETFRAME (frame, f); |
82641697 | 6898 | XSETFASTINT (position, pos); |
7b7739b1 | 6899 | |
f6b98e0b | 6900 | endpos = ZV; |
bc0db68d RS |
6901 | if (pos < region_beg && region_beg < endpos) |
6902 | endpos = region_beg; | |
f6b98e0b | 6903 | |
82641697 GM |
6904 | /* Get the `face' or `mouse_face' text property at POS, and |
6905 | determine the next position at which the property changes. */ | |
6f134486 | 6906 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6907 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6908 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6909 | if (INTEGERP (end)) | |
6910 | endpos = XINT (end); | |
6f134486 | 6911 | |
82641697 | 6912 | /* Look at properties from overlays. */ |
b6d40e46 | 6913 | { |
f6b98e0b | 6914 | int next_overlay; |
9516fe94 RS |
6915 | int len; |
6916 | ||
6917 | /* First try with room for 40 overlays. */ | |
6918 | len = 40; | |
6919 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6920 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6921 | &next_overlay, NULL, 0); |
9516fe94 | 6922 | |
82641697 GM |
6923 | /* If there are more than 40, make enough space for all, and try |
6924 | again. */ | |
9516fe94 RS |
6925 | if (noverlays > len) |
6926 | { | |
6927 | len = noverlays; | |
6928 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6929 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6930 | &next_overlay, NULL, 0); |
9516fe94 | 6931 | } |
b6d40e46 | 6932 | |
f6b98e0b JB |
6933 | if (next_overlay < endpos) |
6934 | endpos = next_overlay; | |
b6d40e46 JB |
6935 | } |
6936 | ||
6937 | *endptr = endpos; | |
7b7739b1 | 6938 | |
82641697 | 6939 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 6940 | |
82641697 GM |
6941 | /* Optimize common cases where we can use the default face. */ |
6942 | if (noverlays == 0 | |
6943 | && NILP (prop) | |
39506348 | 6944 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
6945 | return DEFAULT_FACE_ID; |
6946 | ||
6947 | /* Begin with attributes from the default face. */ | |
6948 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6949 | ||
6950 | /* Merge in attributes specified via text properties. */ | |
6951 | if (!NILP (prop)) | |
6952 | merge_face_vector_with_property (f, attrs, prop); | |
6953 | ||
6954 | /* Now merge the overlay data. */ | |
18195655 | 6955 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6956 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6957 | { |
18195655 RS |
6958 | Lisp_Object oend; |
6959 | int oendpos; | |
6960 | ||
6961 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6962 | if (!NILP (prop)) |
6963 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6964 | |
6965 | oend = OVERLAY_END (overlay_vec[i]); | |
6966 | oendpos = OVERLAY_POSITION (oend); | |
6967 | if (oendpos < endpos) | |
6968 | endpos = oendpos; | |
6969 | } | |
6970 | ||
82641697 | 6971 | /* If in the region, merge in the region face. */ |
18195655 RS |
6972 | if (pos >= region_beg && pos < region_end) |
6973 | { | |
82641697 | 6974 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6975 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
178c5d9c | 6976 | |
18195655 RS |
6977 | if (region_end < endpos) |
6978 | endpos = region_end; | |
18195655 RS |
6979 | } |
6980 | ||
6981 | *endptr = endpos; | |
6982 | ||
82641697 | 6983 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6984 | or realize a new one for ASCII characters. */ |
6985 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
6986 | } |
6987 | ||
60573a90 | 6988 | |
82641697 | 6989 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6990 | window W, for ASCII characters. |
7b7739b1 | 6991 | |
82641697 GM |
6992 | If STRING is an overlay string, it comes from position BUFPOS in |
6993 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6994 | not an overlay string. W must display the current buffer. | |
6995 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
6996 | region; both are -1 if no region is visible. |
6997 | ||
6998 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
6999 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 7000 | |
48a4ca99 GM |
7001 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
7002 | ||
82641697 GM |
7003 | Set *ENDPTR to the next position where to check for faces in |
7004 | STRING; -1 if the face is constant from POS to the end of the | |
7005 | string. | |
18195655 | 7006 | |
82641697 | 7007 | Value is the id of the face to use. The face returned is suitable |
39506348 | 7008 | for displaying ASCII characters. */ |
fffc2367 | 7009 | |
82641697 GM |
7010 | int |
7011 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 7012 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
7013 | struct window *w; |
7014 | Lisp_Object string; | |
7015 | int pos, bufpos; | |
7016 | int region_beg, region_end; | |
7017 | int *endptr; | |
7018 | enum face_id base_face_id; | |
48a4ca99 | 7019 | int mouse_p; |
660ed669 | 7020 | { |
82641697 GM |
7021 | Lisp_Object prop, position, end, limit; |
7022 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
7023 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7024 | struct face *base_face; | |
7025 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 7026 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
7027 | |
7028 | /* Get the value of the face property at the current position within | |
7029 | STRING. Value is nil if there is no face property. */ | |
7030 | XSETFASTINT (position, pos); | |
48a4ca99 | 7031 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
7032 | |
7033 | /* Get the next position at which to check for faces. Value of end | |
7034 | is nil if face is constant all the way to the end of the string. | |
7035 | Otherwise it is a string position where to check faces next. | |
7036 | Limit is the maximum position up to which to check for property | |
7037 | changes in Fnext_single_property_change. Strings are usually | |
7038 | short, so set the limit to the end of the string. */ | |
7039 | XSETFASTINT (limit, XSTRING (string)->size); | |
48a4ca99 | 7040 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
7041 | if (INTEGERP (end)) |
7042 | *endptr = XFASTINT (end); | |
7043 | else | |
7044 | *endptr = -1; | |
7045 | ||
7046 | base_face = FACE_FROM_ID (f, base_face_id); | |
7047 | xassert (base_face); | |
7048 | ||
7049 | /* Optimize the default case that there is no face property and we | |
7050 | are not in the region. */ | |
7051 | if (NILP (prop) | |
7052 | && (base_face_id != DEFAULT_FACE_ID | |
7053 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
7054 | that the region doesn't have to be taken into account. */ | |
7055 | || bufpos <= 0 | |
7056 | || bufpos < region_beg | |
7057 | || bufpos >= region_end) | |
7058 | && (multibyte_p | |
7059 | /* We can't realize faces for different charsets differently | |
7060 | if we don't have fonts, so we can stop here if not working | |
7061 | on a window-system frame. */ | |
7062 | || !FRAME_WINDOW_P (f) | |
39506348 | 7063 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
7064 | return base_face->id; |
7065 | ||
7066 | /* Begin with attributes from the base face. */ | |
7067 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7068 | ||
7069 | /* Merge in attributes specified via text properties. */ | |
7070 | if (!NILP (prop)) | |
7071 | merge_face_vector_with_property (f, attrs, prop); | |
7072 | ||
7073 | /* If in the region, merge in the region face. */ | |
7074 | if (bufpos | |
7075 | && bufpos >= region_beg | |
7076 | && bufpos < region_end) | |
a8517066 | 7077 | { |
82641697 | 7078 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 7079 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
a8517066 | 7080 | } |
660ed669 | 7081 | |
82641697 | 7082 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7083 | or realize a new one for ASCII characters. */ |
7084 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
7085 | } |
7086 | ||
7087 | ||
c115973b | 7088 | \f |
82641697 GM |
7089 | /*********************************************************************** |
7090 | Tests | |
7091 | ***********************************************************************/ | |
c115973b | 7092 | |
82641697 | 7093 | #if GLYPH_DEBUG |
c115973b | 7094 | |
82641697 | 7095 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 7096 | |
82641697 GM |
7097 | static void |
7098 | dump_realized_face (face) | |
7099 | struct face *face; | |
7100 | { | |
7101 | fprintf (stderr, "ID: %d\n", face->id); | |
7102 | #ifdef HAVE_X_WINDOWS | |
7103 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
7104 | #endif | |
7105 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
7106 | face->foreground, | |
7107 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
7108 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
7109 | face->background, | |
7110 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
7111 | fprintf (stderr, "font_name: %s (%s)\n", | |
7112 | face->font_name, | |
7113 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
7114 | #ifdef HAVE_X_WINDOWS | |
7115 | fprintf (stderr, "font = %p\n", face->font); | |
7116 | #endif | |
7117 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
7118 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
7119 | fprintf (stderr, "underline: %d (%s)\n", | |
7120 | face->underline_p, | |
7121 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
7122 | fprintf (stderr, "hash: %d\n", face->hash); | |
7123 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
7124 | } |
7125 | ||
7126 | ||
7ee72033 MB |
7127 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
7128 | (n) | |
82641697 | 7129 | Lisp_Object n; |
c115973b | 7130 | { |
82641697 | 7131 | if (NILP (n)) |
c115973b | 7132 | { |
82641697 | 7133 | int i; |
178c5d9c | 7134 | |
82641697 GM |
7135 | fprintf (stderr, "font selection order: "); |
7136 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7137 | fprintf (stderr, "%d ", font_sort_order[i]); | |
7138 | fprintf (stderr, "\n"); | |
7139 | ||
7140 | fprintf (stderr, "alternative fonts: "); | |
7141 | debug_print (Vface_alternative_font_family_alist); | |
7142 | fprintf (stderr, "\n"); | |
178c5d9c | 7143 | |
c0617987 | 7144 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 7145 | Fdump_face (make_number (i)); |
c115973b JB |
7146 | } |
7147 | else | |
f5e278c7 | 7148 | { |
82641697 | 7149 | struct face *face; |
b7826503 | 7150 | CHECK_NUMBER (n); |
c0617987 | 7151 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
7152 | if (face == NULL) |
7153 | error ("Not a valid face"); | |
7154 | dump_realized_face (face); | |
f5e278c7 | 7155 | } |
178c5d9c | 7156 | |
c115973b JB |
7157 | return Qnil; |
7158 | } | |
b5c53576 | 7159 | |
b5c53576 | 7160 | |
82641697 | 7161 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
7162 | 0, 0, 0, doc: /* */) |
7163 | () | |
b5c53576 | 7164 | { |
82641697 GM |
7165 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
7166 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
7167 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
7168 | return Qnil; | |
b5c53576 RS |
7169 | } |
7170 | ||
82641697 GM |
7171 | #endif /* GLYPH_DEBUG != 0 */ |
7172 | ||
b5c53576 | 7173 | |
c115973b | 7174 | \f |
82641697 GM |
7175 | /*********************************************************************** |
7176 | Initialization | |
7177 | ***********************************************************************/ | |
cb637678 | 7178 | |
c115973b | 7179 | void |
f211082d | 7180 | syms_of_xfaces () |
c115973b | 7181 | { |
f211082d JB |
7182 | Qface = intern ("face"); |
7183 | staticpro (&Qface); | |
fef04523 GM |
7184 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
7185 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
7186 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
7187 | staticpro (&Qframe_update_face_colors); | |
178c5d9c | 7188 | |
82641697 GM |
7189 | /* Lisp face attribute keywords. */ |
7190 | QCfamily = intern (":family"); | |
7191 | staticpro (&QCfamily); | |
7192 | QCheight = intern (":height"); | |
7193 | staticpro (&QCheight); | |
7194 | QCweight = intern (":weight"); | |
7195 | staticpro (&QCweight); | |
7196 | QCslant = intern (":slant"); | |
7197 | staticpro (&QCslant); | |
7198 | QCunderline = intern (":underline"); | |
7199 | staticpro (&QCunderline); | |
7200 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 7201 | staticpro (&QCinverse_video); |
82641697 GM |
7202 | QCreverse_video = intern (":reverse-video"); |
7203 | staticpro (&QCreverse_video); | |
7204 | QCforeground = intern (":foreground"); | |
7205 | staticpro (&QCforeground); | |
7206 | QCbackground = intern (":background"); | |
7207 | staticpro (&QCbackground); | |
7208 | QCstipple = intern (":stipple");; | |
7209 | staticpro (&QCstipple); | |
7210 | QCwidth = intern (":width"); | |
7211 | staticpro (&QCwidth); | |
7212 | QCfont = intern (":font"); | |
7213 | staticpro (&QCfont); | |
7214 | QCbold = intern (":bold"); | |
7215 | staticpro (&QCbold); | |
7216 | QCitalic = intern (":italic"); | |
7217 | staticpro (&QCitalic); | |
7218 | QCoverline = intern (":overline"); | |
7219 | staticpro (&QCoverline); | |
7220 | QCstrike_through = intern (":strike-through"); | |
7221 | staticpro (&QCstrike_through); | |
7222 | QCbox = intern (":box"); | |
7223 | staticpro (&QCbox); | |
2c20458f MB |
7224 | QCinherit = intern (":inherit"); |
7225 | staticpro (&QCinherit); | |
82641697 GM |
7226 | |
7227 | /* Symbols used for Lisp face attribute values. */ | |
7228 | QCcolor = intern (":color"); | |
7229 | staticpro (&QCcolor); | |
7230 | QCline_width = intern (":line-width"); | |
7231 | staticpro (&QCline_width); | |
7232 | QCstyle = intern (":style"); | |
7233 | staticpro (&QCstyle); | |
7234 | Qreleased_button = intern ("released-button"); | |
7235 | staticpro (&Qreleased_button); | |
7236 | Qpressed_button = intern ("pressed-button"); | |
7237 | staticpro (&Qpressed_button); | |
7238 | Qnormal = intern ("normal"); | |
7239 | staticpro (&Qnormal); | |
7240 | Qultra_light = intern ("ultra-light"); | |
7241 | staticpro (&Qultra_light); | |
7242 | Qextra_light = intern ("extra-light"); | |
7243 | staticpro (&Qextra_light); | |
7244 | Qlight = intern ("light"); | |
7245 | staticpro (&Qlight); | |
7246 | Qsemi_light = intern ("semi-light"); | |
7247 | staticpro (&Qsemi_light); | |
7248 | Qsemi_bold = intern ("semi-bold"); | |
7249 | staticpro (&Qsemi_bold); | |
7250 | Qbold = intern ("bold"); | |
7251 | staticpro (&Qbold); | |
7252 | Qextra_bold = intern ("extra-bold"); | |
7253 | staticpro (&Qextra_bold); | |
7254 | Qultra_bold = intern ("ultra-bold"); | |
7255 | staticpro (&Qultra_bold); | |
7256 | Qoblique = intern ("oblique"); | |
7257 | staticpro (&Qoblique); | |
7258 | Qitalic = intern ("italic"); | |
7259 | staticpro (&Qitalic); | |
7260 | Qreverse_oblique = intern ("reverse-oblique"); | |
7261 | staticpro (&Qreverse_oblique); | |
7262 | Qreverse_italic = intern ("reverse-italic"); | |
7263 | staticpro (&Qreverse_italic); | |
7264 | Qultra_condensed = intern ("ultra-condensed"); | |
7265 | staticpro (&Qultra_condensed); | |
7266 | Qextra_condensed = intern ("extra-condensed"); | |
7267 | staticpro (&Qextra_condensed); | |
7268 | Qcondensed = intern ("condensed"); | |
7269 | staticpro (&Qcondensed); | |
7270 | Qsemi_condensed = intern ("semi-condensed"); | |
7271 | staticpro (&Qsemi_condensed); | |
7272 | Qsemi_expanded = intern ("semi-expanded"); | |
7273 | staticpro (&Qsemi_expanded); | |
7274 | Qexpanded = intern ("expanded"); | |
7275 | staticpro (&Qexpanded); | |
7276 | Qextra_expanded = intern ("extra-expanded"); | |
7277 | staticpro (&Qextra_expanded); | |
7278 | Qultra_expanded = intern ("ultra-expanded"); | |
7279 | staticpro (&Qultra_expanded); | |
7280 | Qbackground_color = intern ("background-color"); | |
7281 | staticpro (&Qbackground_color); | |
7282 | Qforeground_color = intern ("foreground-color"); | |
7283 | staticpro (&Qforeground_color); | |
7284 | Qunspecified = intern ("unspecified"); | |
7285 | staticpro (&Qunspecified); | |
7286 | ||
92610620 GM |
7287 | Qface_alias = intern ("face-alias"); |
7288 | staticpro (&Qface_alias); | |
82641697 GM |
7289 | Qdefault = intern ("default"); |
7290 | staticpro (&Qdefault); | |
9ea173e8 GM |
7291 | Qtool_bar = intern ("tool-bar"); |
7292 | staticpro (&Qtool_bar); | |
82641697 GM |
7293 | Qregion = intern ("region"); |
7294 | staticpro (&Qregion); | |
8bd201d6 GM |
7295 | Qfringe = intern ("fringe"); |
7296 | staticpro (&Qfringe); | |
045dee35 GM |
7297 | Qheader_line = intern ("header-line"); |
7298 | staticpro (&Qheader_line); | |
8bd201d6 GM |
7299 | Qscroll_bar = intern ("scroll-bar"); |
7300 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
7301 | Qmenu = intern ("menu"); |
7302 | staticpro (&Qmenu); | |
8bd201d6 GM |
7303 | Qcursor = intern ("cursor"); |
7304 | staticpro (&Qcursor); | |
7305 | Qborder = intern ("border"); | |
7306 | staticpro (&Qborder); | |
7307 | Qmouse = intern ("mouse"); | |
7308 | staticpro (&Qmouse); | |
039b6394 KS |
7309 | Qmode_line_inactive = intern ("mode-line-inactive"); |
7310 | staticpro (&Qmode_line_inactive); | |
2d764c78 EZ |
7311 | Qtty_color_desc = intern ("tty-color-desc"); |
7312 | staticpro (&Qtty_color_desc); | |
7313 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
7314 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
7315 | Qtty_color_alist = intern ("tty-color-alist"); |
7316 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
7317 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
7318 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 7319 | |
dbc968b8 GM |
7320 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
7321 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
7322 | Vface_alternative_font_family_alist = Qnil; |
7323 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
7324 | Vface_alternative_font_registry_alist = Qnil; |
7325 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 7326 | |
82641697 GM |
7327 | defsubr (&Sinternal_make_lisp_face); |
7328 | defsubr (&Sinternal_lisp_face_p); | |
7329 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 7330 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 7331 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 7332 | #endif |
ea4fa0af GM |
7333 | defsubr (&Scolor_gray_p); |
7334 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
7335 | defsubr (&Sface_attribute_relative_p); |
7336 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
7337 | defsubr (&Sinternal_get_lisp_face_attribute); |
7338 | defsubr (&Sinternal_lisp_face_attribute_values); | |
7339 | defsubr (&Sinternal_lisp_face_equal_p); | |
7340 | defsubr (&Sinternal_lisp_face_empty_p); | |
7341 | defsubr (&Sinternal_copy_lisp_face); | |
7342 | defsubr (&Sinternal_merge_in_global_face); | |
7343 | defsubr (&Sface_font); | |
7344 | defsubr (&Sframe_face_alist); | |
7345 | defsubr (&Sinternal_set_font_selection_order); | |
7346 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 7347 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 7348 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
7349 | #if GLYPH_DEBUG |
7350 | defsubr (&Sdump_face); | |
7351 | defsubr (&Sshow_face_resources); | |
7352 | #endif /* GLYPH_DEBUG */ | |
7353 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 7354 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 7355 | |
38426dee | 7356 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
7357 | defsubr (&Sdump_colors); |
7358 | #endif | |
7359 | ||
7ee72033 MB |
7360 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
7361 | doc: /* *Limit for font matching. | |
228299fa GM |
7362 | If an integer > 0, font matching functions won't load more than |
7363 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
7364 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
7365 | ||
7ee72033 MB |
7366 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
7367 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 7368 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 7369 | |
7ee72033 MB |
7370 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
7371 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
7372 | This stipple pattern is used on monochrome displays |
7373 | instead of shades of gray for a face background color. | |
7374 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
7375 | Vface_default_stipple = build_string ("gray3"); |
7376 | ||
7ee72033 MB |
7377 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
7378 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
7379 | Vtty_defined_color_alist = Qnil; |
7380 | ||
7ee72033 MB |
7381 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
7382 | doc: /* Allowed scalable fonts. | |
228299fa GM |
7383 | A value of nil means don't allow any scalable fonts. |
7384 | A value of t means allow any scalable font. | |
7385 | Otherwise, value must be a list of regular expressions. A font may be | |
7386 | scaled if its name matches a regular expression in the list. | |
7387 | Note that if value is nil, a scalable font might still be used, if no | |
7388 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 7389 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 7390 | |
7ee72033 MB |
7391 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
7392 | doc: /* List of ignored fonts. | |
228299fa GM |
7393 | Each element is a regular expression that matches names of fonts to |
7394 | ignore. */); | |
c824bfbc KH |
7395 | Vface_ignored_fonts = Qnil; |
7396 | ||
c3cee013 | 7397 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 7398 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
7399 | defsubr (&Sx_list_fonts); |
7400 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 7401 | defsubr (&Sx_family_fonts); |
82641697 | 7402 | defsubr (&Sx_font_family_list); |
c3cee013 | 7403 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 7404 | } |