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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
e9bffc61 | 2 | |
95df8112 | 3 | Copyright (C) 1993-1994, 1998-2011 Free Software Foundation, Inc. |
7b7739b1 | 4 | |
c115973b JB |
5 | This file is part of GNU Emacs. |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
c115973b | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
c115973b JB |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c115973b | 19 | |
82641697 GM |
20 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
21 | ||
22 | /* Faces. | |
23 | ||
24 | When using Emacs with X, the display style of characters can be | |
25 | changed by defining `faces'. Each face can specify the following | |
26 | display attributes: | |
27 | ||
39506348 | 28 | 1. Font family name. |
178c5d9c | 29 | |
53aaf1e2 KH |
30 | 2. Font foundary name. |
31 | ||
32 | 3. Relative proportionate width, aka character set width or set | |
82641697 | 33 | width (swidth), e.g. `semi-compressed'. |
178c5d9c | 34 | |
53aaf1e2 | 35 | 4. Font height in 1/10pt. |
178c5d9c | 36 | |
53aaf1e2 | 37 | 5. Font weight, e.g. `bold'. |
178c5d9c | 38 | |
53aaf1e2 | 39 | 6. Font slant, e.g. `italic'. |
178c5d9c | 40 | |
53aaf1e2 | 41 | 7. Foreground color. |
178c5d9c | 42 | |
53aaf1e2 | 43 | 8. Background color. |
82641697 | 44 | |
53aaf1e2 | 45 | 9. Whether or not characters should be underlined, and in what color. |
82641697 | 46 | |
53aaf1e2 | 47 | 10. Whether or not characters should be displayed in inverse video. |
82641697 | 48 | |
53aaf1e2 | 49 | 11. A background stipple, a bitmap. |
82641697 | 50 | |
53aaf1e2 | 51 | 12. Whether or not characters should be overlined, and in what color. |
82641697 | 52 | |
53aaf1e2 | 53 | 13. Whether or not characters should be strike-through, and in what |
82641697 GM |
54 | color. |
55 | ||
53aaf1e2 | 56 | 14. Whether or not a box should be drawn around characters, the box |
82641697 GM |
57 | type, and, for simple boxes, in what color. |
58 | ||
53aaf1e2 | 59 | 15. Font-spec, or nil. This is a special attribute. |
2dee4c0b KH |
60 | |
61 | A font-spec is a collection of font attributes (specs). | |
62 | ||
63 | When this attribute is specified, the face uses a font matching | |
64 | with the specs as is except for what overwritten by the specs in | |
65 | the fontset (see below). In addition, the other font-related | |
66 | attributes (1st thru 5th) are updated from the spec. | |
67 | ||
39506348 | 68 | On the other hand, if one of the other font-related attributes are |
2dee4c0b | 69 | specified, the correspoinding specs in this attribute is set to nil. |
39506348 | 70 | |
2c20458f MB |
71 | 15. A face name or list of face names from which to inherit attributes. |
72 | ||
a08332c0 GM |
73 | 16. A specified average font width, which is invisible from Lisp, |
74 | and is used to ensure that a font specified on the command line, | |
75 | for example, can be matched exactly. | |
76 | ||
2dee4c0b KH |
77 | 17. A fontset name. This is another special attribute. |
78 | ||
79 | A fontset is a mappings from characters to font-specs, and the | |
80 | specs overwrite the font-spec in the 14th attribute. | |
81 | ||
763bc839 | 82 | |
82641697 GM |
83 | Faces are frame-local by nature because Emacs allows to define the |
84 | same named face (face names are symbols) differently for different | |
85 | frames. Each frame has an alist of face definitions for all named | |
86 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
87 | with the symbol `face' in slot 0, and a slot for each of the face |
88 | attributes mentioned above. | |
82641697 GM |
89 | |
90 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
91 | definitions from this list are used to initialize faces of newly | |
92 | created frames. | |
178c5d9c | 93 | |
82641697 | 94 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
95 | have a value of `unspecified'. Faces specifying all attributes but |
96 | the 14th are called `fully-specified'. | |
82641697 GM |
97 | |
98 | ||
99 | Face merging. | |
100 | ||
101 | The display style of a given character in the text is determined by | |
102 | combining several faces. This process is called `face merging'. | |
103 | Any aspect of the display style that isn't specified by overlays or | |
104 | text properties is taken from the `default' face. Since it is made | |
105 | sure that the default face is always fully-specified, face merging | |
106 | always results in a fully-specified face. | |
107 | ||
108 | ||
109 | Face realization. | |
178c5d9c | 110 | |
82641697 GM |
111 | After all face attributes for a character have been determined by |
112 | merging faces of that character, that face is `realized'. The | |
113 | realization process maps face attributes to what is physically | |
114 | available on the system where Emacs runs. The result is a | |
115 | `realized face' in form of a struct face which is stored in the | |
116 | face cache of the frame on which it was realized. | |
117 | ||
39506348 KH |
118 | Face realization is done in the context of the character to display |
119 | because different fonts may be used for different characters. In | |
120 | other words, for characters that have different font | |
121 | specifications, different realized faces are needed to display | |
82641697 GM |
122 | them. |
123 | ||
39506348 KH |
124 | Font specification is done by fontsets. See the comment in |
125 | fontset.c for the details. In the current implementation, all ASCII | |
126 | characters share the same font in a fontset. | |
127 | ||
128 | Faces are at first realized for ASCII characters, and, at that | |
129 | time, assigned a specific realized fontset. Hereafter, we call | |
130 | such a face as `ASCII face'. When a face for a multibyte character | |
131 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
132 | that has the same attributes other than font-related ones. | |
133 | ||
763bc839 | 134 | Thus, all realized faces have a realized fontset. |
82641697 GM |
135 | |
136 | ||
137 | Unibyte text. | |
138 | ||
39506348 KH |
139 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
140 | font as ASCII characters. That is because it is expected that | |
141 | unibyte text users specify a font that is suitable both for ASCII | |
142 | and raw 8-bit characters. | |
143 | ||
82641697 GM |
144 | |
145 | Font selection. | |
146 | ||
147 | Font selection tries to find the best available matching font for a | |
39506348 | 148 | given (character, face) combination. |
82641697 | 149 | |
39506348 KH |
150 | If the face specifies a fontset name, that fontset determines a |
151 | pattern for fonts of the given character. If the face specifies a | |
152 | font name or the other font-related attributes, a fontset is | |
153 | realized from the default fontset. In that case, that | |
154 | specification determines a pattern for ASCII characters and the | |
155 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
156 | |
157 | Available fonts on the system on which Emacs runs are then matched | |
158 | against the font pattern. The result of font selection is the best | |
159 | match for the given face attributes in this font list. | |
160 | ||
161 | Font selection can be influenced by the user. | |
162 | ||
163 | 1. The user can specify the relative importance he gives the face | |
164 | attributes width, height, weight, and slant by setting | |
165 | face-font-selection-order (faces.el) to a list of face attribute | |
166 | names. The default is '(:width :height :weight :slant), and means | |
167 | that font selection first tries to find a good match for the font | |
168 | width specified by a face, then---within fonts with that | |
169 | width---tries to find a best match for the specified font height, | |
170 | etc. | |
171 | ||
c824bfbc | 172 | 2. Setting face-font-family-alternatives allows the user to |
82641697 GM |
173 | specify alternative font families to try if a family specified by a |
174 | face doesn't exist. | |
175 | ||
c824bfbc KH |
176 | 3. Setting face-font-registry-alternatives allows the user to |
177 | specify all alternative font registries to try for a face | |
178 | specifying a registry. | |
179 | ||
180 | 4. Setting face-ignored-fonts allows the user to ignore specific | |
181 | fonts. | |
182 | ||
82641697 | 183 | |
ec7a10e3 | 184 | Character composition. |
39506348 KH |
185 | |
186 | Usually, the realization process is already finished when Emacs | |
187 | actually reflects the desired glyph matrix on the screen. However, | |
188 | on displaying a composition (sequence of characters to be composed | |
189 | on the screen), a suitable font for the components of the | |
190 | composition is selected and realized while drawing them on the | |
191 | screen, i.e. the realization process is delayed but in principle | |
192 | the same. | |
82641697 | 193 | |
178c5d9c | 194 | |
82641697 GM |
195 | Initialization of basic faces. |
196 | ||
197 | The faces `default', `modeline' are considered `basic faces'. | |
198 | When redisplay happens the first time for a newly created frame, | |
199 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
200 | used to fill in unspecified attributes of the default face. */ | |
201 | ||
68c45bf0 | 202 | #include <config.h> |
6b61353c | 203 | #include <stdio.h> |
c115973b JB |
204 | #include <sys/types.h> |
205 | #include <sys/stat.h> | |
4d553a13 | 206 | #include <stdio.h> /* This needs to be before termchar.h */ |
d7306fe6 | 207 | #include <setjmp.h> |
7ee72033 | 208 | |
c115973b | 209 | #include "lisp.h" |
81b39386 | 210 | #include "character.h" |
a8517066 | 211 | #include "charset.h" |
9763806e | 212 | #include "keyboard.h" |
b5c53576 | 213 | #include "frame.h" |
428a555e | 214 | #include "termhooks.h" |
b5c53576 | 215 | |
87485d6f | 216 | #ifdef HAVE_X_WINDOWS |
c115973b | 217 | #include "xterm.h" |
c7ae3284 GM |
218 | #ifdef USE_MOTIF |
219 | #include <Xm/Xm.h> | |
220 | #include <Xm/XmStrDefs.h> | |
221 | #endif /* USE_MOTIF */ | |
d12d0a9b | 222 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 223 | |
87485d6f MW |
224 | #ifdef MSDOS |
225 | #include "dosfns.h" | |
226 | #endif | |
82641697 | 227 | |
c3cee013 JR |
228 | #ifdef WINDOWSNT |
229 | #include "w32term.h" | |
230 | #include "fontset.h" | |
231 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
232 | code with #ifdef blocks. */ | |
9763806e | 233 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
234 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
235 | #define x_display_info w32_display_info | |
236 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
237 | #define check_x check_w32 | |
c3cee013 | 238 | #define GCGraphicsExposures 0 |
d12d0a9b | 239 | #endif /* WINDOWSNT */ |
c3cee013 | 240 | |
edfda783 AR |
241 | #ifdef HAVE_NS |
242 | #include "nsterm.h" | |
243 | #undef FRAME_X_DISPLAY_INFO | |
244 | #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO | |
245 | #define x_display_info ns_display_info | |
246 | #define FRAME_X_FONT_TABLE FRAME_NS_FONT_TABLE | |
247 | #define check_x check_ns | |
edfda783 AR |
248 | #define GCGraphicsExposures 0 |
249 | #endif /* HAVE_NS */ | |
250 | ||
c115973b | 251 | #include "buffer.h" |
f211082d | 252 | #include "dispextern.h" |
357f32fc | 253 | #include "blockinput.h" |
b6d40e46 | 254 | #include "window.h" |
bde7c500 | 255 | #include "intervals.h" |
28d440ab | 256 | #include "termchar.h" |
c115973b | 257 | |
426b2119 | 258 | #include "font.h" |
ad00e1a3 | 259 | #ifdef HAVE_WINDOW_SYSTEM |
2dee4c0b KH |
260 | #include "fontset.h" |
261 | #endif /* HAVE_WINDOW_SYSTEM */ | |
426b2119 | 262 | |
87485d6f | 263 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
264 | |
265 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
266 | time.h. On some such systems, Xos.h tries to redefine struct |
267 | timeval and struct timezone if USG is #defined while it is | |
268 | #included. */ | |
657070ac | 269 | |
82641697 | 270 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 271 | #include <time.h> |
657070ac JB |
272 | #undef USG |
273 | #include <X11/Xos.h> | |
274 | #define USG | |
e11d186d | 275 | #define __TIMEVAL__ |
875975e9 PE |
276 | #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */ |
277 | #endif | |
82641697 GM |
278 | #else /* not XOS_NEEDS_TIME_H */ |
279 | #include <X11/Xos.h> | |
280 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 281 | |
82641697 | 282 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 283 | |
82641697 | 284 | #include <ctype.h> |
c115973b | 285 | |
c660ce4e GM |
286 | /* Number of pt per inch (from the TeXbook). */ |
287 | ||
288 | #define PT_PER_INCH 72.27 | |
289 | ||
82641697 GM |
290 | /* Non-zero if face attribute ATTR is unspecified. */ |
291 | ||
292 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
293 | ||
2ff10663 CY |
294 | /* Non-zero if face attribute ATTR is `ignore-defface'. */ |
295 | ||
296 | #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface) | |
297 | ||
82641697 GM |
298 | /* Value is the number of elements of VECTOR. */ |
299 | ||
300 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
301 | ||
178c5d9c | 302 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
303 | prime number). */ |
304 | ||
305 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
306 | ||
307 | /* Keyword symbols used for face attribute names. */ | |
308 | ||
955cbe7b PE |
309 | Lisp_Object QCfamily, QCheight, QCweight, QCslant; |
310 | static Lisp_Object QCunderline; | |
311 | static Lisp_Object QCinverse_video, QCstipple; | |
312 | Lisp_Object QCforeground, QCbackground; | |
313 | Lisp_Object QCwidth; | |
314 | static Lisp_Object QCfont, QCbold, QCitalic; | |
315 | static Lisp_Object QCreverse_video; | |
316 | static Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; | |
317 | static Lisp_Object QCfontset; | |
82641697 GM |
318 | |
319 | /* Symbols used for attribute values. */ | |
320 | ||
955cbe7b | 321 | Lisp_Object Qnormal; |
cc39a9db BK |
322 | Lisp_Object Qbold; |
323 | static Lisp_Object Qultra_light, Qextra_light, Qlight; | |
955cbe7b | 324 | static Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; |
cc39a9db BK |
325 | static Lisp_Object Qoblique, Qreverse_oblique, Qreverse_italic; |
326 | Lisp_Object Qitalic; | |
327 | static Lisp_Object Qultra_condensed, Qextra_condensed; | |
328 | Lisp_Object Qcondensed; | |
329 | static Lisp_Object Qsemi_condensed, Qsemi_expanded, Qextra_expanded; | |
330 | Lisp_Object Qexpanded; | |
955cbe7b PE |
331 | static Lisp_Object Qultra_expanded; |
332 | static Lisp_Object Qreleased_button, Qpressed_button; | |
333 | static Lisp_Object QCstyle, QCcolor, QCline_width; | |
1b2de274 | 334 | Lisp_Object Qunspecified; /* used in dosfns.c */ |
955cbe7b | 335 | static Lisp_Object Qignore_defface; |
ef917393 EZ |
336 | |
337 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 338 | |
92610620 | 339 | /* The name of the function to call when the background of the frame |
c20577bc | 340 | has changed, frame_set_background_mode. */ |
92610620 | 341 | |
c20577bc | 342 | Lisp_Object Qframe_set_background_mode; |
92610620 | 343 | |
82641697 GM |
344 | /* Names of basic faces. */ |
345 | ||
955cbe7b PE |
346 | Lisp_Object Qdefault, Qtool_bar, Qfringe; |
347 | static Lisp_Object Qregion; | |
348 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor; | |
349 | static Lisp_Object Qborder, Qmouse, Qmenu; | |
350 | Lisp_Object Qmode_line_inactive; | |
351 | static Lisp_Object Qvertical_border; | |
8bd201d6 | 352 | |
92610620 GM |
353 | /* The symbol `face-alias'. A symbols having that property is an |
354 | alias for another face. Value of the property is the name of | |
355 | the aliased face. */ | |
356 | ||
955cbe7b | 357 | static Lisp_Object Qface_alias; |
92610620 | 358 | |
82641697 GM |
359 | /* Alist of alternative font families. Each element is of the form |
360 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
361 | try FAMILY1, then FAMILY2, ... */ | |
362 | ||
363 | Lisp_Object Vface_alternative_font_family_alist; | |
364 | ||
32fcc231 GM |
365 | /* Alist of alternative font registries. Each element is of the form |
366 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
367 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
368 | ||
369 | Lisp_Object Vface_alternative_font_registry_alist; | |
370 | ||
82641697 GM |
371 | /* Allowed scalable fonts. A value of nil means don't allow any |
372 | scalable fonts. A value of t means allow the use of any scalable | |
373 | font. Otherwise, value must be a list of regular expressions. A | |
374 | font may be scaled if its name matches a regular expression in the | |
375 | list. */ | |
376 | ||
955cbe7b | 377 | static Lisp_Object Qscalable_fonts_allowed; |
c824bfbc | 378 | |
057df17c GM |
379 | #define DEFAULT_FONT_LIST_LIMIT 100 |
380 | ||
82641697 GM |
381 | /* The symbols `foreground-color' and `background-color' which can be |
382 | used as part of a `face' property. This is for compatibility with | |
383 | Emacs 20.2. */ | |
384 | ||
385 | Lisp_Object Qforeground_color, Qbackground_color; | |
386 | ||
387 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 388 | |
ff83dbb1 | 389 | Lisp_Object Qface; |
82641697 | 390 | |
46b00436 KS |
391 | /* Property for basic faces which other faces cannot inherit. */ |
392 | ||
955cbe7b | 393 | static Lisp_Object Qface_no_inherit; |
46b00436 | 394 | |
82641697 GM |
395 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
396 | ||
955cbe7b | 397 | static Lisp_Object Qbitmap_spec_p; |
f211082d | 398 | |
82641697 | 399 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 400 | |
82641697 | 401 | static int next_lface_id; |
c115973b | 402 | |
82641697 | 403 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 404 | |
82641697 GM |
405 | static Lisp_Object *lface_id_to_name; |
406 | static int lface_id_to_name_size; | |
c115973b | 407 | |
ae4b4ba5 GM |
408 | /* TTY color-related functions (defined in tty-colors.el). */ |
409 | ||
955cbe7b | 410 | static Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 411 | |
ae4b4ba5 GM |
412 | /* The name of the function used to compute colors on TTYs. */ |
413 | ||
955cbe7b | 414 | static Lisp_Object Qtty_color_alist; |
ae4b4ba5 | 415 | |
82641697 GM |
416 | /* Counter for calls to clear_face_cache. If this counter reaches |
417 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
418 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
419 | ||
420 | static int clear_font_table_count; | |
421 | #define CLEAR_FONT_TABLE_COUNT 100 | |
422 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
423 | ||
424 | /* Non-zero means face attributes have been changed since the last | |
425 | redisplay. Used in redisplay_internal. */ | |
426 | ||
427 | int face_change_count; | |
428 | ||
a4a76b61 GM |
429 | /* Non-zero means don't display bold text if a face's foreground |
430 | and background colors are the inverse of the default colors of the | |
431 | display. This is a kluge to suppress `bold black' foreground text | |
432 | which is hard to read on an LCD monitor. */ | |
433 | ||
435f4c28 | 434 | static int tty_suppress_bold_inverse_default_colors_p; |
a4a76b61 | 435 | |
dbc968b8 GM |
436 | /* A list of the form `((x . y))' used to avoid consing in |
437 | Finternal_set_lisp_face_attribute. */ | |
438 | ||
439 | static Lisp_Object Vparam_value_alist; | |
440 | ||
82641697 GM |
441 | /* The total number of colors currently allocated. */ |
442 | ||
443 | #if GLYPH_DEBUG | |
444 | static int ncolors_allocated; | |
445 | static int npixmaps_allocated; | |
446 | static int ngcs; | |
447 | #endif | |
448 | ||
ceeda019 GM |
449 | /* Non-zero means the definition of the `menu' face for new frames has |
450 | been changed. */ | |
451 | ||
435f4c28 | 452 | static int menu_face_changed_default; |
82641697 GM |
453 | |
454 | \f | |
455 | /* Function prototypes. */ | |
456 | ||
82641697 | 457 | struct table_entry; |
a0a23346 | 458 | struct named_merge_point; |
82641697 | 459 | |
f57e2426 J |
460 | static void map_tty_color (struct frame *, struct face *, |
461 | enum lface_attribute_index, int *); | |
462 | static Lisp_Object resolve_face_name (Lisp_Object, int); | |
f57e2426 J |
463 | static void set_font_frame_param (Lisp_Object, Lisp_Object); |
464 | static int get_lface_attributes (struct frame *, Lisp_Object, Lisp_Object *, | |
465 | int, struct named_merge_point *); | |
466 | static int load_pixmap (struct frame *, Lisp_Object, unsigned *, unsigned *); | |
467 | static struct frame *frame_or_selected_frame (Lisp_Object, int); | |
468 | static void load_face_colors (struct frame *, struct face *, Lisp_Object *); | |
469 | static void free_face_colors (struct frame *, struct face *); | |
eec47d6b | 470 | static int face_color_gray_p (struct frame *, const char *); |
f57e2426 J |
471 | static struct face *realize_face (struct face_cache *, Lisp_Object *, |
472 | int); | |
473 | static struct face *realize_non_ascii_face (struct frame *, Lisp_Object, | |
474 | struct face *); | |
475 | static struct face *realize_x_face (struct face_cache *, Lisp_Object *); | |
476 | static struct face *realize_tty_face (struct face_cache *, Lisp_Object *); | |
477 | static int realize_basic_faces (struct frame *); | |
478 | static int realize_default_face (struct frame *); | |
479 | static void realize_named_face (struct frame *, Lisp_Object, int); | |
480 | static int lface_fully_specified_p (Lisp_Object *); | |
481 | static int lface_equal_p (Lisp_Object *, Lisp_Object *); | |
482 | static unsigned hash_string_case_insensitive (Lisp_Object); | |
483 | static unsigned lface_hash (Lisp_Object *); | |
484 | static int lface_same_font_attributes_p (Lisp_Object *, Lisp_Object *); | |
485 | static struct face_cache *make_face_cache (struct frame *); | |
486 | static void clear_face_gcs (struct face_cache *); | |
487 | static void free_face_cache (struct face_cache *); | |
488 | static int face_fontset (Lisp_Object *); | |
489 | static void merge_face_vectors (struct frame *, Lisp_Object *, Lisp_Object*, | |
490 | struct named_merge_point *); | |
491 | static int merge_face_ref (struct frame *, Lisp_Object, Lisp_Object *, | |
492 | int, struct named_merge_point *); | |
493 | static int set_lface_from_font (struct frame *, Lisp_Object, Lisp_Object, | |
494 | int); | |
495 | static Lisp_Object lface_from_face_name (struct frame *, Lisp_Object, int); | |
496 | static struct face *make_realized_face (Lisp_Object *); | |
497 | static void cache_face (struct face_cache *, struct face *, unsigned); | |
498 | static void uncache_face (struct face_cache *, struct face *); | |
82641697 | 499 | |
c3cee013 | 500 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 501 | |
f57e2426 J |
502 | static GC x_create_gc (struct frame *, unsigned long, XGCValues *); |
503 | static void x_free_gc (struct frame *, GC); | |
82641697 | 504 | |
bce72079 | 505 | #ifdef USE_X_TOOLKIT |
f57e2426 | 506 | static void x_update_menu_appearance (struct frame *); |
9180dc8c | 507 | |
f57e2426 | 508 | extern void free_frame_menubar (struct frame *); |
bce72079 GM |
509 | #endif /* USE_X_TOOLKIT */ |
510 | ||
c3cee013 | 511 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 512 | |
cb637678 | 513 | \f |
82641697 GM |
514 | /*********************************************************************** |
515 | Utilities | |
516 | ***********************************************************************/ | |
c115973b | 517 | |
87485d6f | 518 | #ifdef HAVE_X_WINDOWS |
cb637678 | 519 | |
a435fc2a GM |
520 | #ifdef DEBUG_X_COLORS |
521 | ||
522 | /* The following is a poor mans infrastructure for debugging X color | |
523 | allocation problems on displays with PseudoColor-8. Some X servers | |
524 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
525 | color reference counts completely so that they don't signal an | |
526 | error when a color is freed whose reference count is already 0. | |
527 | Other X servers do. To help me debug this, the following code | |
528 | implements a simple reference counting schema of its own, for a | |
529 | single display/screen. --gerd. */ | |
530 | ||
531 | /* Reference counts for pixel colors. */ | |
532 | ||
533 | int color_count[256]; | |
534 | ||
535 | /* Register color PIXEL as allocated. */ | |
536 | ||
537 | void | |
538 | register_color (pixel) | |
539 | unsigned long pixel; | |
540 | { | |
541 | xassert (pixel < 256); | |
542 | ++color_count[pixel]; | |
543 | } | |
544 | ||
545 | ||
546 | /* Register color PIXEL as deallocated. */ | |
547 | ||
548 | void | |
549 | unregister_color (pixel) | |
550 | unsigned long pixel; | |
551 | { | |
552 | xassert (pixel < 256); | |
553 | if (color_count[pixel] > 0) | |
554 | --color_count[pixel]; | |
555 | else | |
556 | abort (); | |
557 | } | |
558 | ||
559 | ||
560 | /* Register N colors from PIXELS as deallocated. */ | |
561 | ||
562 | void | |
563 | unregister_colors (pixels, n) | |
564 | unsigned long *pixels; | |
565 | int n; | |
566 | { | |
567 | int i; | |
568 | for (i = 0; i < n; ++i) | |
569 | unregister_color (pixels[i]); | |
570 | } | |
571 | ||
08dc08dc | 572 | |
a7ca3326 | 573 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, |
7ee72033 | 574 | doc: /* Dump currently allocated colors to stderr. */) |
5842a27b | 575 | (void) |
08dc08dc GM |
576 | { |
577 | int i, n; | |
578 | ||
579 | fputc ('\n', stderr); | |
178c5d9c | 580 | |
08dc08dc GM |
581 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
582 | if (color_count[i]) | |
583 | { | |
584 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
585 | ++n; | |
586 | if (n % 5 == 0) | |
587 | fputc ('\n', stderr); | |
588 | else | |
589 | fputc ('\t', stderr); | |
590 | } | |
591 | ||
592 | if (n % 5 != 0) | |
593 | fputc ('\n', stderr); | |
594 | return Qnil; | |
595 | } | |
596 | ||
a435fc2a GM |
597 | #endif /* DEBUG_X_COLORS */ |
598 | ||
d12d0a9b | 599 | |
1f847cf8 GM |
600 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
601 | color values. Interrupt input must be blocked when this function | |
602 | is called. */ | |
603 | ||
604 | void | |
971de7fb | 605 | x_free_colors (struct frame *f, long unsigned int *pixels, int npixels) |
1f847cf8 GM |
606 | { |
607 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
608 | ||
609 | /* If display has an immutable color map, freeing colors is not | |
610 | necessary and some servers don't allow it. So don't do it. */ | |
611 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
612 | { | |
a435fc2a | 613 | #ifdef DEBUG_X_COLORS |
08dc08dc | 614 | unregister_colors (pixels, npixels); |
a435fc2a | 615 | #endif |
513c5806 GM |
616 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
617 | pixels, npixels, 0); | |
08dc08dc GM |
618 | } |
619 | } | |
620 | ||
621 | ||
435f4c28 PE |
622 | #ifdef USE_X_TOOLKIT |
623 | ||
08dc08dc GM |
624 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
625 | color values. Interrupt input must be blocked when this function | |
626 | is called. */ | |
627 | ||
628 | void | |
971de7fb | 629 | x_free_dpy_colors (Display *dpy, Screen *screen, Colormap cmap, long unsigned int *pixels, int npixels) |
08dc08dc GM |
630 | { |
631 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
632 | int class = dpyinfo->visual->class; | |
633 | ||
634 | /* If display has an immutable color map, freeing colors is not | |
635 | necessary and some servers don't allow it. So don't do it. */ | |
636 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
637 | { | |
a435fc2a | 638 | #ifdef DEBUG_X_COLORS |
08dc08dc | 639 | unregister_colors (pixels, npixels); |
a435fc2a | 640 | #endif |
513c5806 | 641 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
642 | } |
643 | } | |
435f4c28 | 644 | #endif /* USE_X_TOOLKIT */ |
08dc08dc | 645 | |
82641697 GM |
646 | /* Create and return a GC for use on frame F. GC values and mask |
647 | are given by XGCV and MASK. */ | |
648 | ||
55d4c1b2 | 649 | static inline GC |
971de7fb | 650 | x_create_gc (struct frame *f, long unsigned int mask, XGCValues *xgcv) |
c115973b JB |
651 | { |
652 | GC gc; | |
82641697 GM |
653 | BLOCK_INPUT; |
654 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
655 | UNBLOCK_INPUT; | |
656 | IF_DEBUG (++ngcs); | |
657 | return gc; | |
658 | } | |
c115973b | 659 | |
42120bc7 | 660 | |
82641697 GM |
661 | /* Free GC which was used on frame F. */ |
662 | ||
55d4c1b2 | 663 | static inline void |
971de7fb | 664 | x_free_gc (struct frame *f, GC gc) |
82641697 | 665 | { |
ed0c79c6 | 666 | eassert (interrupt_input_blocked); |
a6d8ba25 | 667 | IF_DEBUG (xassert (--ngcs >= 0)); |
82641697 | 668 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
82641697 | 669 | } |
660ed669 | 670 | |
82641697 | 671 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 672 | |
c3cee013 JR |
673 | #ifdef WINDOWSNT |
674 | /* W32 emulation of GCs */ | |
675 | ||
55d4c1b2 | 676 | static inline GC |
7c3320d8 | 677 | x_create_gc (struct frame *f, unsigned long mask, XGCValues *xgcv) |
c3cee013 JR |
678 | { |
679 | GC gc; | |
680 | BLOCK_INPUT; | |
681 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
682 | UNBLOCK_INPUT; | |
683 | IF_DEBUG (++ngcs); | |
684 | return gc; | |
685 | } | |
686 | ||
687 | ||
688 | /* Free GC which was used on frame F. */ | |
689 | ||
55d4c1b2 | 690 | static inline void |
7c3320d8 | 691 | x_free_gc (struct frame *f, GC gc) |
c3cee013 | 692 | { |
a6d8ba25 | 693 | IF_DEBUG (xassert (--ngcs >= 0)); |
c3cee013 | 694 | xfree (gc); |
c3cee013 JR |
695 | } |
696 | ||
697 | #endif /* WINDOWSNT */ | |
660ed669 | 698 | |
edfda783 AR |
699 | #ifdef HAVE_NS |
700 | /* NS emulation of GCs */ | |
701 | ||
55d4c1b2 | 702 | static inline GC |
3d608a86 J |
703 | x_create_gc (struct frame *f, |
704 | unsigned long mask, | |
705 | XGCValues *xgcv) | |
edfda783 AR |
706 | { |
707 | GC gc = xmalloc (sizeof (*gc)); | |
708 | if (gc) | |
72af86bd | 709 | memcpy (gc, xgcv, sizeof (XGCValues)); |
edfda783 AR |
710 | return gc; |
711 | } | |
712 | ||
55d4c1b2 | 713 | static inline void |
3d608a86 | 714 | x_free_gc (struct frame *f, GC gc) |
edfda783 | 715 | { |
5f445726 | 716 | xfree (gc); |
edfda783 AR |
717 | } |
718 | #endif /* HAVE_NS */ | |
719 | ||
05131107 JR |
720 | /* Like strcasecmp/stricmp. Used to compare parts of font names which |
721 | are in ISO8859-1. */ | |
82641697 GM |
722 | |
723 | int | |
25a48bd0 | 724 | xstrcasecmp (const char *s1, const char *s2) |
82641697 GM |
725 | { |
726 | while (*s1 && *s2) | |
95887807 | 727 | { |
25a48bd0 PE |
728 | unsigned char b1 = *s1; |
729 | unsigned char b2 = *s2; | |
730 | unsigned char c1 = tolower (b1); | |
731 | unsigned char c2 = tolower (b2); | |
82641697 GM |
732 | if (c1 != c2) |
733 | return c1 < c2 ? -1 : 1; | |
734 | ++s1, ++s2; | |
95887807 | 735 | } |
cd0bb842 | 736 | |
82641697 GM |
737 | if (*s1 == 0) |
738 | return *s2 == 0 ? 0 : -1; | |
739 | return 1; | |
740 | } | |
660ed669 | 741 | |
660ed669 | 742 | |
c0617987 GM |
743 | /* If FRAME is nil, return a pointer to the selected frame. |
744 | Otherwise, check that FRAME is a live frame, and return a pointer | |
745 | to it. NPARAM is the parameter number of FRAME, for | |
746 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
747 | Lisp function definitions. */ | |
82641697 | 748 | |
55d4c1b2 | 749 | static inline struct frame * |
971de7fb | 750 | frame_or_selected_frame (Lisp_Object frame, int nparam) |
82641697 | 751 | { |
82641697 | 752 | if (NILP (frame)) |
c0617987 | 753 | frame = selected_frame; |
178c5d9c | 754 | |
b7826503 | 755 | CHECK_LIVE_FRAME (frame); |
c0617987 | 756 | return XFRAME (frame); |
42120bc7 | 757 | } |
82641697 | 758 | |
42120bc7 | 759 | \f |
82641697 GM |
760 | /*********************************************************************** |
761 | Frames and faces | |
762 | ***********************************************************************/ | |
cd0bb842 | 763 | |
82641697 | 764 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 765 | |
82641697 | 766 | void |
971de7fb | 767 | init_frame_faces (struct frame *f) |
cb637678 | 768 | { |
82641697 GM |
769 | /* Make a face cache, if F doesn't have one. */ |
770 | if (FRAME_FACE_CACHE (f) == NULL) | |
771 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 772 | |
c3cee013 | 773 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 774 | /* Make the image cache. */ |
c3cee013 | 775 | if (FRAME_WINDOW_P (f)) |
82641697 | 776 | { |
91c37b7e CY |
777 | /* We initialize the image cache when creating the first frame |
778 | on a terminal, and not during terminal creation. This way, | |
779 | `x-open-connection' on a tty won't create an image cache. */ | |
354884c4 | 780 | if (FRAME_IMAGE_CACHE (f) == NULL) |
354884c4 SM |
781 | FRAME_IMAGE_CACHE (f) = make_image_cache (); |
782 | ++FRAME_IMAGE_CACHE (f)->refcount; | |
82641697 | 783 | } |
c3cee013 | 784 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 785 | |
178c5d9c | 786 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
787 | parameters to realize basic faces at this point. */ |
788 | #ifdef HAVE_X_WINDOWS | |
789 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
790 | #endif |
791 | #ifdef WINDOWSNT | |
792 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 | 793 | #endif |
edfda783 AR |
794 | #ifdef HAVE_NS |
795 | if (!FRAME_NS_P (f) || FRAME_NS_WINDOW (f)) | |
82641697 GM |
796 | #endif |
797 | if (!realize_basic_faces (f)) | |
edfda783 | 798 | abort (); |
82641697 | 799 | } |
cb637678 | 800 | |
cb637678 | 801 | |
e2749141 | 802 | /* Free face cache of frame F. Called from delete_frame. */ |
cb637678 | 803 | |
82641697 | 804 | void |
971de7fb | 805 | free_frame_faces (struct frame *f) |
cb637678 | 806 | { |
82641697 | 807 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 808 | |
82641697 GM |
809 | if (face_cache) |
810 | { | |
811 | free_face_cache (face_cache); | |
812 | FRAME_FACE_CACHE (f) = NULL; | |
813 | } | |
660ed669 | 814 | |
c3cee013 JR |
815 | #ifdef HAVE_WINDOW_SYSTEM |
816 | if (FRAME_WINDOW_P (f)) | |
195f798e | 817 | { |
354884c4 | 818 | struct image_cache *image_cache = FRAME_IMAGE_CACHE (f); |
82641697 | 819 | if (image_cache) |
195f798e | 820 | { |
82641697 GM |
821 | --image_cache->refcount; |
822 | if (image_cache->refcount == 0) | |
823 | free_image_cache (f); | |
195f798e RS |
824 | } |
825 | } | |
c3cee013 | 826 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
827 | } |
828 | ||
82641697 | 829 | |
8bd201d6 GM |
830 | /* Clear face caches, and recompute basic faces for frame F. Call |
831 | this after changing frame parameters on which those faces depend, | |
832 | or when realized faces have been freed due to changing attributes | |
833 | of named faces. */ | |
82641697 GM |
834 | |
835 | void | |
971de7fb | 836 | recompute_basic_faces (struct frame *f) |
cb637678 | 837 | { |
82641697 GM |
838 | if (FRAME_FACE_CACHE (f)) |
839 | { | |
8bd201d6 | 840 | clear_face_cache (0); |
18df9369 GM |
841 | if (!realize_basic_faces (f)) |
842 | abort (); | |
82641697 GM |
843 | } |
844 | } | |
cb637678 | 845 | |
cb637678 | 846 | |
82641697 GM |
847 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
848 | try to free unused fonts, too. */ | |
cb637678 | 849 | |
adfea139 | 850 | void |
971de7fb | 851 | clear_face_cache (int clear_fonts_p) |
cb637678 | 852 | { |
c3cee013 | 853 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 854 | Lisp_Object tail, frame; |
828e66d1 | 855 | |
82641697 GM |
856 | if (clear_fonts_p |
857 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 858 | { |
2dee4c0b KH |
859 | #if 0 |
860 | /* Not yet implemented. */ | |
861 | clear_font_cache (frame); | |
862 | #endif | |
863 | ||
82641697 GM |
864 | /* From time to time see if we can unload some fonts. This also |
865 | frees all realized faces on all frames. Fonts needed by | |
866 | faces will be loaded again when faces are realized again. */ | |
867 | clear_font_table_count = 0; | |
195f798e | 868 | |
82641697 | 869 | FOR_EACH_FRAME (tail, frame) |
195f798e | 870 | { |
d5641fc5 | 871 | struct frame *f = XFRAME (frame); |
c3cee013 | 872 | if (FRAME_WINDOW_P (f) |
82641697 | 873 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 874 | free_all_realized_faces (frame); |
82641697 GM |
875 | } |
876 | } | |
877 | else | |
878 | { | |
879 | /* Clear GCs of realized faces. */ | |
880 | FOR_EACH_FRAME (tail, frame) | |
881 | { | |
071048a3 | 882 | struct frame *f = XFRAME (frame); |
c3cee013 | 883 | if (FRAME_WINDOW_P (f)) |
82641697 | 884 | clear_face_gcs (FRAME_FACE_CACHE (f)); |
195f798e | 885 | } |
a2bc5bdd | 886 | clear_image_caches (Qnil); |
828e66d1 | 887 | } |
c3cee013 | 888 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
889 | } |
890 | ||
82641697 | 891 | |
a7ca3326 | 892 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, |
7ee72033 MB |
893 | doc: /* Clear face caches on all frames. |
894 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
5842a27b | 895 | (Lisp_Object thoroughly) |
cd0bb842 | 896 | { |
6a3f48c7 | 897 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
898 | ++face_change_count; |
899 | ++windows_or_buffers_changed; | |
82641697 GM |
900 | return Qnil; |
901 | } | |
902 | ||
82641697 GM |
903 | \f |
904 | /*********************************************************************** | |
905 | X Pixmaps | |
906 | ***********************************************************************/ | |
907 | ||
c3cee013 | 908 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 909 | |
fef04523 | 910 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 911 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
912 | A bitmap specification is either a string, a file name, or a list |
913 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
914 | HEIGHT is its height, and DATA is a string containing the bits of | |
915 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 | 916 | \(WIDTH + 7)/8 bytes. */) |
5842a27b | 917 | (Lisp_Object object) |
82641697 | 918 | { |
c7ae3284 | 919 | int pixmap_p = 0; |
178c5d9c | 920 | |
c7ae3284 GM |
921 | if (STRINGP (object)) |
922 | /* If OBJECT is a string, it's a file name. */ | |
923 | pixmap_p = 1; | |
924 | else if (CONSP (object)) | |
925 | { | |
926 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
927 | HEIGHT must be integers > 0, and DATA must be string large | |
928 | enough to hold a bitmap of the specified size. */ | |
929 | Lisp_Object width, height, data; | |
930 | ||
931 | height = width = data = Qnil; | |
178c5d9c | 932 | |
c7ae3284 GM |
933 | if (CONSP (object)) |
934 | { | |
935 | width = XCAR (object); | |
936 | object = XCDR (object); | |
937 | if (CONSP (object)) | |
938 | { | |
939 | height = XCAR (object); | |
940 | object = XCDR (object); | |
941 | if (CONSP (object)) | |
942 | data = XCAR (object); | |
943 | } | |
944 | } | |
cd0bb842 | 945 | |
c7ae3284 GM |
946 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
947 | { | |
948 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
949 | / BITS_PER_CHAR); | |
d5db4077 | 950 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
951 | pixmap_p = 1; |
952 | } | |
953 | } | |
954 | ||
955 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
956 | } |
957 | ||
cd0bb842 | 958 | |
82641697 GM |
959 | /* Load a bitmap according to NAME (which is either a file name or a |
960 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
961 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
962 | bitmap cannot be loaded, display a message saying so, and return | |
963 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
964 | if these pointers are not null. */ | |
cd0bb842 | 965 | |
82641697 | 966 | static int |
971de7fb | 967 | load_pixmap (FRAME_PTR f, Lisp_Object name, unsigned int *w_ptr, unsigned int *h_ptr) |
cd0bb842 RS |
968 | { |
969 | int bitmap_id; | |
cd0bb842 RS |
970 | |
971 | if (NILP (name)) | |
82641697 | 972 | return 0; |
cd0bb842 | 973 | |
d5ddd1a3 | 974 | CHECK_TYPE (!NILP (Fbitmap_spec_p (name)), Qbitmap_spec_p, name); |
cd0bb842 RS |
975 | |
976 | BLOCK_INPUT; | |
cd0bb842 RS |
977 | if (CONSP (name)) |
978 | { | |
979 | /* Decode a bitmap spec into a bitmap. */ | |
980 | ||
981 | int h, w; | |
982 | Lisp_Object bits; | |
983 | ||
984 | w = XINT (Fcar (name)); | |
985 | h = XINT (Fcar (Fcdr (name))); | |
986 | bits = Fcar (Fcdr (Fcdr (name))); | |
987 | ||
42a5b22f | 988 | bitmap_id = x_create_bitmap_from_data (f, SSDATA (bits), |
cd0bb842 RS |
989 | w, h); |
990 | } | |
991 | else | |
992 | { | |
993 | /* It must be a string -- a file name. */ | |
994 | bitmap_id = x_create_bitmap_from_file (f, name); | |
995 | } | |
996 | UNBLOCK_INPUT; | |
997 | ||
7812a96f | 998 | if (bitmap_id < 0) |
82641697 | 999 | { |
2eb582ae | 1000 | add_to_log ("Invalid or undefined bitmap `%s'", name, Qnil); |
82641697 | 1001 | bitmap_id = 0; |
cd0bb842 | 1002 | |
82641697 GM |
1003 | if (w_ptr) |
1004 | *w_ptr = 0; | |
1005 | if (h_ptr) | |
1006 | *h_ptr = 0; | |
1007 | } | |
1008 | else | |
1009 | { | |
1010 | #if GLYPH_DEBUG | |
1011 | ++npixmaps_allocated; | |
1012 | #endif | |
1013 | if (w_ptr) | |
1014 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1015 | ||
1016 | if (h_ptr) | |
1017 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1018 | } | |
cd0bb842 RS |
1019 | |
1020 | return bitmap_id; | |
cb637678 | 1021 | } |
87485d6f | 1022 | |
c3cee013 | 1023 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1024 | |
87485d6f | 1025 | |
82641697 | 1026 | \f |
82641697 GM |
1027 | /*********************************************************************** |
1028 | X Colors | |
1029 | ***********************************************************************/ | |
1030 | ||
b35df831 MB |
1031 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1032 | RGB_LIST should contain (at least) 3 lisp integers. | |
1033 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1034 | ||
1035 | static int | |
971de7fb | 1036 | parse_rgb_list (Lisp_Object rgb_list, XColor *color) |
b35df831 MB |
1037 | { |
1038 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1039 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1040 | { \ | |
1041 | color->field = XINT (XCAR (rgb_list)); \ | |
1042 | rgb_list = XCDR (rgb_list); \ | |
1043 | } \ | |
1044 | else \ | |
1045 | return 0; | |
1046 | ||
1047 | PARSE_RGB_LIST_FIELD (red); | |
1048 | PARSE_RGB_LIST_FIELD (green); | |
1049 | PARSE_RGB_LIST_FIELD (blue); | |
1050 | ||
1051 | return 1; | |
1052 | } | |
1053 | ||
1054 | ||
1055 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1056 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1057 | non-zero, then the `standard' definition of the same color is | |
1058 | returned in it. */ | |
1059 | ||
1060 | static int | |
971de7fb | 1061 | tty_lookup_color (struct frame *f, Lisp_Object color, XColor *tty_color, XColor *std_color) |
b35df831 MB |
1062 | { |
1063 | Lisp_Object frame, color_desc; | |
1064 | ||
1065 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1066 | return 0; | |
1067 | ||
1068 | XSETFRAME (frame, f); | |
1069 | ||
1070 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1071 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1072 | { | |
1073 | Lisp_Object rgb; | |
1074 | ||
1075 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1076 | return 0; | |
1077 | ||
1078 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1079 | ||
1080 | rgb = XCDR (XCDR (color_desc)); | |
1081 | if (! parse_rgb_list (rgb, tty_color)) | |
1082 | return 0; | |
1083 | ||
1084 | /* Should we fill in STD_COLOR too? */ | |
1085 | if (std_color) | |
1086 | { | |
1087 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1088 | *std_color = *tty_color; | |
1089 | ||
1090 | /* Do a quick check to see if the returned descriptor is | |
1091 | actually _exactly_ equal to COLOR, otherwise we have to | |
1092 | lookup STD_COLOR separately. If it's impossible to lookup | |
1093 | a standard color, we just give up and use TTY_COLOR. */ | |
1094 | if ((!STRINGP (XCAR (color_desc)) | |
1095 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1096 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1097 | { |
1098 | /* Look up STD_COLOR separately. */ | |
1099 | rgb = call1 (Qtty_color_standard_values, color); | |
1100 | if (! parse_rgb_list (rgb, std_color)) | |
1101 | return 0; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | return 1; | |
1106 | } | |
1107 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1108 | /* We were called early during startup, and the colors are not | |
1109 | yet set up in tty-defined-color-alist. Don't return a failure | |
1110 | indication, since this produces the annoying "Unable to | |
1111 | load color" messages in the *Messages* buffer. */ | |
1112 | return 1; | |
1113 | else | |
1114 | /* tty-color-desc seems to have returned a bad value. */ | |
1115 | return 0; | |
1116 | } | |
1117 | ||
2d764c78 | 1118 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1119 | |
6b463e58 | 1120 | static int |
eec47d6b DN |
1121 | tty_defined_color (struct frame *f, const char *color_name, |
1122 | XColor *color_def, int alloc) | |
2d764c78 | 1123 | { |
2d764c78 EZ |
1124 | int status = 1; |
1125 | ||
b35df831 | 1126 | /* Defaults. */ |
177c0ea7 | 1127 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1128 | color_def->red = 0; |
1129 | color_def->blue = 0; | |
1130 | color_def->green = 0; | |
a61c12d5 | 1131 | |
b35df831 | 1132 | if (*color_name) |
3062711f | 1133 | status = tty_lookup_color (f, build_string (color_name), color_def, NULL); |
b35df831 MB |
1134 | |
1135 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1136 | { |
1137 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1138 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1139 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1140 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1141 | } |
1142 | ||
b35df831 | 1143 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1144 | status = 1; |
1145 | ||
2d764c78 EZ |
1146 | return status; |
1147 | } | |
1148 | ||
08dc08dc GM |
1149 | |
1150 | /* Decide if color named COLOR_NAME is valid for the display | |
1151 | associated with the frame F; if so, return the rgb values in | |
1152 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1153 | |
1154 | This does the right thing for any type of frame. */ | |
08dc08dc | 1155 | |
435f4c28 | 1156 | static int |
eec47d6b | 1157 | defined_color (struct frame *f, const char *color_name, XColor *color_def, int alloc) |
2d764c78 EZ |
1158 | { |
1159 | if (!FRAME_WINDOW_P (f)) | |
1160 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1161 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1162 | else if (FRAME_X_P (f)) |
1163 | return x_defined_color (f, color_name, color_def, alloc); | |
1164 | #endif | |
1165 | #ifdef WINDOWSNT | |
1166 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1167 | return w32_defined_color (f, color_name, color_def, alloc); |
1168 | #endif | |
edfda783 AR |
1169 | #ifdef HAVE_NS |
1170 | else if (FRAME_NS_P (f)) | |
1171 | return ns_defined_color (f, color_name, color_def, alloc, 1); | |
2d764c78 EZ |
1172 | #endif |
1173 | else | |
1174 | abort (); | |
1175 | } | |
1176 | ||
08dc08dc GM |
1177 | |
1178 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1179 | Lisp string. */ | |
2d764c78 EZ |
1180 | |
1181 | Lisp_Object | |
971de7fb | 1182 | tty_color_name (struct frame *f, int idx) |
2d764c78 | 1183 | { |
2d764c78 EZ |
1184 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1185 | { | |
a61c12d5 EZ |
1186 | Lisp_Object frame; |
1187 | Lisp_Object coldesc; | |
1188 | ||
1189 | XSETFRAME (frame, f); | |
1190 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1191 | |
1192 | if (!NILP (coldesc)) | |
1193 | return XCAR (coldesc); | |
1194 | } | |
1195 | #ifdef MSDOS | |
1196 | /* We can have an MSDOG frame under -nw for a short window of | |
1197 | opportunity before internal_terminal_init is called. DTRT. */ | |
1198 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1199 | return msdos_stdcolor_name (idx); | |
1200 | #endif | |
1201 | ||
ef917393 EZ |
1202 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1203 | return build_string (unspecified_fg); | |
1204 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1205 | return build_string (unspecified_bg); | |
c3cee013 | 1206 | |
ef917393 | 1207 | return Qunspecified; |
2d764c78 | 1208 | } |
82641697 | 1209 | |
08dc08dc | 1210 | |
82641697 | 1211 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1212 | black) on frame F. |
1213 | ||
1214 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1215 | |
1216 | static int | |
eec47d6b | 1217 | face_color_gray_p (struct frame *f, const char *color_name) |
82641697 GM |
1218 | { |
1219 | XColor color; | |
1220 | int gray_p; | |
1221 | ||
1222 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1223 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1224 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1225 | || | |
1ea40aa2 | 1226 | ((eabs (color.red - color.green) |
71433d39 | 1227 | < max (color.red, color.green) / 20) |
1ea40aa2 | 1228 | && (eabs (color.green - color.blue) |
71433d39 | 1229 | < max (color.green, color.blue) / 20) |
1ea40aa2 | 1230 | && (eabs (color.blue - color.red) |
71433d39 | 1231 | < max (color.blue, color.red) / 20))); |
87485d6f | 1232 | else |
82641697 | 1233 | gray_p = 0; |
178c5d9c | 1234 | |
82641697 | 1235 | return gray_p; |
87485d6f | 1236 | } |
87485d6f | 1237 | |
cb637678 | 1238 | |
82641697 GM |
1239 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1240 | BACKGROUND_P non-zero means the color will be used as background | |
1241 | color. */ | |
1242 | ||
1243 | static int | |
eec47d6b | 1244 | face_color_supported_p (struct frame *f, const char *color_name, int background_p) |
82641697 GM |
1245 | { |
1246 | Lisp_Object frame; | |
2d764c78 | 1247 | XColor not_used; |
82641697 GM |
1248 | |
1249 | XSETFRAME (frame, f); | |
6b61353c | 1250 | return |
6a46b96b | 1251 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1252 | FRAME_WINDOW_P (f) |
1253 | ? (!NILP (Fxw_display_color_p (frame)) | |
05131107 JR |
1254 | || xstrcasecmp (color_name, "black") == 0 |
1255 | || xstrcasecmp (color_name, "white") == 0 | |
6b61353c KH |
1256 | || (background_p |
1257 | && face_color_gray_p (f, color_name)) | |
1258 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1259 | && face_color_gray_p (f, color_name))) | |
1260 | : | |
1261 | #endif | |
1262 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1263 | } |
82641697 GM |
1264 | |
1265 | ||
da47150d | 1266 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1267 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1268 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 | 1269 | If FRAME is nil or omitted, use the selected frame. */) |
5842a27b | 1270 | (Lisp_Object color, Lisp_Object frame) |
cb637678 | 1271 | { |
2d764c78 EZ |
1272 | struct frame *f; |
1273 | ||
b7826503 | 1274 | CHECK_STRING (color); |
6b61353c KH |
1275 | if (NILP (frame)) |
1276 | frame = selected_frame; | |
1277 | else | |
1278 | CHECK_FRAME (frame); | |
2d764c78 | 1279 | f = XFRAME (frame); |
42a5b22f | 1280 | return face_color_gray_p (f, SSDATA (color)) ? Qt : Qnil; |
82641697 | 1281 | } |
660ed669 | 1282 | |
fffc2367 | 1283 | |
da47150d | 1284 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1285 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1286 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1287 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1288 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1289 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 | 1290 | COLOR must be a valid color name. */) |
5842a27b | 1291 | (Lisp_Object color, Lisp_Object frame, Lisp_Object background_p) |
82641697 | 1292 | { |
2d764c78 EZ |
1293 | struct frame *f; |
1294 | ||
b7826503 | 1295 | CHECK_STRING (color); |
6b61353c KH |
1296 | if (NILP (frame)) |
1297 | frame = selected_frame; | |
1298 | else | |
1299 | CHECK_FRAME (frame); | |
2d764c78 | 1300 | f = XFRAME (frame); |
42a5b22f | 1301 | if (face_color_supported_p (f, SSDATA (color), !NILP (background_p))) |
82641697 GM |
1302 | return Qt; |
1303 | return Qnil; | |
1304 | } | |
7b37f67b | 1305 | |
08dc08dc | 1306 | |
82641697 GM |
1307 | /* Load color with name NAME for use by face FACE on frame F. |
1308 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1309 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1310 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1311 | pixel color. If color cannot be loaded, display a message, and | |
1312 | return the foreground, background or underline color of F, but | |
1313 | record that fact in flags of the face so that we don't try to free | |
1314 | these colors. */ | |
1315 | ||
44747bd0 | 1316 | unsigned long |
971de7fb | 1317 | load_color (struct frame *f, struct face *face, Lisp_Object name, enum lface_attribute_index target_index) |
82641697 GM |
1318 | { |
1319 | XColor color; | |
178c5d9c | 1320 | |
82641697 GM |
1321 | xassert (STRINGP (name)); |
1322 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1323 | || target_index == LFACE_BACKGROUND_INDEX | |
1324 | || target_index == LFACE_UNDERLINE_INDEX | |
1325 | || target_index == LFACE_OVERLINE_INDEX | |
1326 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1327 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1328 | |
82641697 GM |
1329 | /* if the color map is full, defined_color will return a best match |
1330 | to the values in an existing cell. */ | |
42a5b22f | 1331 | if (!defined_color (f, SSDATA (name), &color, 1)) |
82641697 | 1332 | { |
2d764c78 | 1333 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1334 | |
82641697 | 1335 | switch (target_index) |
1120eb5e | 1336 | { |
82641697 GM |
1337 | case LFACE_FOREGROUND_INDEX: |
1338 | face->foreground_defaulted_p = 1; | |
1339 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1340 | break; | |
178c5d9c | 1341 | |
82641697 GM |
1342 | case LFACE_BACKGROUND_INDEX: |
1343 | face->background_defaulted_p = 1; | |
1344 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1345 | break; | |
178c5d9c | 1346 | |
82641697 GM |
1347 | case LFACE_UNDERLINE_INDEX: |
1348 | face->underline_defaulted_p = 1; | |
1349 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1350 | break; | |
178c5d9c | 1351 | |
82641697 GM |
1352 | case LFACE_OVERLINE_INDEX: |
1353 | face->overline_color_defaulted_p = 1; | |
1354 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1355 | break; |
178c5d9c | 1356 | |
82641697 GM |
1357 | case LFACE_STRIKE_THROUGH_INDEX: |
1358 | face->strike_through_color_defaulted_p = 1; | |
1359 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1360 | break; | |
178c5d9c | 1361 | |
82641697 GM |
1362 | case LFACE_BOX_INDEX: |
1363 | face->box_color_defaulted_p = 1; | |
1364 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1365 | break; | |
1366 | ||
1367 | default: | |
1368 | abort (); | |
1120eb5e | 1369 | } |
82641697 GM |
1370 | } |
1371 | #if GLYPH_DEBUG | |
1372 | else | |
1373 | ++ncolors_allocated; | |
1374 | #endif | |
178c5d9c | 1375 | |
82641697 GM |
1376 | return color.pixel; |
1377 | } | |
1120eb5e | 1378 | |
08dc08dc | 1379 | |
c3cee013 | 1380 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1381 | |
82641697 GM |
1382 | /* Load colors for face FACE which is used on frame F. Colors are |
1383 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1384 | of ATTRS. If the background color specified is not supported on F, | |
1385 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1386 | ||
1387 | static void | |
971de7fb | 1388 | load_face_colors (struct frame *f, struct face *face, Lisp_Object *attrs) |
82641697 GM |
1389 | { |
1390 | Lisp_Object fg, bg; | |
1391 | ||
1392 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1393 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1394 | ||
1395 | /* Swap colors if face is inverse-video. */ | |
1396 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1397 | { | |
1398 | Lisp_Object tmp; | |
1399 | tmp = fg; | |
1400 | fg = bg; | |
1401 | bg = tmp; | |
1402 | } | |
1403 | ||
1404 | /* Check for support for foreground, not for background because | |
1405 | face_color_supported_p is smart enough to know that grays are | |
1406 | "supported" as background because we are supposed to use stipple | |
1407 | for them. */ | |
42a5b22f | 1408 | if (!face_color_supported_p (f, SSDATA (bg), 0) |
fef04523 | 1409 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1410 | { |
1411 | x_destroy_bitmap (f, face->stipple); | |
1412 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1413 | &face->pixmap_w, &face->pixmap_h); | |
1414 | } | |
82641697 | 1415 | |
be8a72f4 | 1416 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1417 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1418 | } |
1419 | ||
660ed669 | 1420 | |
82641697 | 1421 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1422 | |
cb637678 | 1423 | void |
971de7fb | 1424 | unload_color (struct frame *f, long unsigned int pixel) |
cb637678 | 1425 | { |
c3cee013 | 1426 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1427 | if (pixel != -1) |
1428 | { | |
1429 | BLOCK_INPUT; | |
1430 | x_free_colors (f, &pixel, 1); | |
1431 | UNBLOCK_INPUT; | |
1432 | } | |
c3cee013 | 1433 | #endif |
82641697 GM |
1434 | } |
1435 | ||
1436 | ||
1437 | /* Free colors allocated for FACE. */ | |
1438 | ||
1439 | static void | |
971de7fb | 1440 | free_face_colors (struct frame *f, struct face *face) |
82641697 | 1441 | { |
edfda783 | 1442 | /* PENDING(NS): need to do something here? */ |
c3cee013 | 1443 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1444 | if (face->colors_copied_bitwise_p) |
1445 | return; | |
1446 | ||
08dc08dc | 1447 | BLOCK_INPUT; |
178c5d9c | 1448 | |
08dc08dc GM |
1449 | if (!face->foreground_defaulted_p) |
1450 | { | |
1451 | x_free_colors (f, &face->foreground, 1); | |
1452 | IF_DEBUG (--ncolors_allocated); | |
1453 | } | |
178c5d9c | 1454 | |
08dc08dc GM |
1455 | if (!face->background_defaulted_p) |
1456 | { | |
1457 | x_free_colors (f, &face->background, 1); | |
1458 | IF_DEBUG (--ncolors_allocated); | |
1459 | } | |
82641697 | 1460 | |
08dc08dc GM |
1461 | if (face->underline_p |
1462 | && !face->underline_defaulted_p) | |
1463 | { | |
1464 | x_free_colors (f, &face->underline_color, 1); | |
1465 | IF_DEBUG (--ncolors_allocated); | |
1466 | } | |
82641697 | 1467 | |
08dc08dc GM |
1468 | if (face->overline_p |
1469 | && !face->overline_color_defaulted_p) | |
1470 | { | |
1471 | x_free_colors (f, &face->overline_color, 1); | |
1472 | IF_DEBUG (--ncolors_allocated); | |
1473 | } | |
82641697 | 1474 | |
08dc08dc GM |
1475 | if (face->strike_through_p |
1476 | && !face->strike_through_color_defaulted_p) | |
1477 | { | |
1478 | x_free_colors (f, &face->strike_through_color, 1); | |
1479 | IF_DEBUG (--ncolors_allocated); | |
1480 | } | |
82641697 | 1481 | |
08dc08dc GM |
1482 | if (face->box != FACE_NO_BOX |
1483 | && !face->box_color_defaulted_p) | |
1484 | { | |
1485 | x_free_colors (f, &face->box_color, 1); | |
1486 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1487 | } |
08dc08dc GM |
1488 | |
1489 | UNBLOCK_INPUT; | |
2d764c78 | 1490 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1491 | } |
08dc08dc | 1492 | |
c3cee013 | 1493 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1494 | |
1495 | ||
1496 | \f | |
1497 | /*********************************************************************** | |
1498 | XLFD Font Names | |
1499 | ***********************************************************************/ | |
1500 | ||
1501 | /* An enumerator for each field of an XLFD font name. */ | |
1502 | ||
1503 | enum xlfd_field | |
1504 | { | |
1505 | XLFD_FOUNDRY, | |
1506 | XLFD_FAMILY, | |
1507 | XLFD_WEIGHT, | |
1508 | XLFD_SLANT, | |
1509 | XLFD_SWIDTH, | |
1510 | XLFD_ADSTYLE, | |
1511 | XLFD_PIXEL_SIZE, | |
1512 | XLFD_POINT_SIZE, | |
1513 | XLFD_RESX, | |
1514 | XLFD_RESY, | |
1515 | XLFD_SPACING, | |
1516 | XLFD_AVGWIDTH, | |
1517 | XLFD_REGISTRY, | |
1518 | XLFD_ENCODING, | |
1519 | XLFD_LAST | |
1520 | }; | |
1521 | ||
178c5d9c | 1522 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1523 | the XLFD specification. */ |
1524 | ||
1525 | enum xlfd_slant | |
1526 | { | |
1527 | XLFD_SLANT_UNKNOWN, | |
1528 | XLFD_SLANT_ROMAN, | |
1529 | XLFD_SLANT_ITALIC, | |
1530 | XLFD_SLANT_OBLIQUE, | |
1531 | XLFD_SLANT_REVERSE_ITALIC, | |
1532 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1533 | XLFD_SLANT_OTHER | |
1534 | }; | |
1535 | ||
1536 | /* Relative font weight according to XLFD documentation. */ | |
1537 | ||
1538 | enum xlfd_weight | |
1539 | { | |
1540 | XLFD_WEIGHT_UNKNOWN, | |
1541 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1542 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1543 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1544 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1545 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1546 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1547 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1548 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1549 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1550 | }; | |
1551 | ||
1552 | /* Relative proportionate width. */ | |
1553 | ||
1554 | enum xlfd_swidth | |
1555 | { | |
1556 | XLFD_SWIDTH_UNKNOWN, | |
1557 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1558 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1559 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1560 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1561 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1562 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1563 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1564 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1565 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1566 | }; | |
1567 | ||
82641697 GM |
1568 | /* Order by which font selection chooses fonts. The default values |
1569 | mean `first, find a best match for the font width, then for the | |
1570 | font height, then for weight, then for slant.' This variable can be | |
1571 | set via set-face-font-sort-order. */ | |
1572 | ||
1573 | static int font_sort_order[4]; | |
82641697 | 1574 | |
2dee4c0b KH |
1575 | #ifdef HAVE_WINDOW_SYSTEM |
1576 | ||
2dee4c0b | 1577 | static enum font_property_index font_props_for_sorting[FONT_SIZE_INDEX]; |
82641697 | 1578 | |
2dee4c0b | 1579 | static int |
971de7fb | 1580 | compare_fonts_by_sort_order (const void *v1, const void *v2) |
2dee4c0b KH |
1581 | { |
1582 | Lisp_Object font1 = *(Lisp_Object *) v1; | |
1583 | Lisp_Object font2 = *(Lisp_Object *) v2; | |
1584 | int i; | |
d5ab09cd | 1585 | |
2dee4c0b KH |
1586 | for (i = 0; i < FONT_SIZE_INDEX; i++) |
1587 | { | |
1588 | enum font_property_index idx = font_props_for_sorting[i]; | |
1589 | Lisp_Object val1 = AREF (font1, idx), val2 = AREF (font2, idx); | |
1590 | int result; | |
82641697 | 1591 | |
2dee4c0b KH |
1592 | if (idx <= FONT_REGISTRY_INDEX) |
1593 | { | |
1594 | if (STRINGP (val1)) | |
42a5b22f | 1595 | result = STRINGP (val2) ? strcmp (SSDATA (val1), SSDATA (val2)) : -1; |
2dee4c0b KH |
1596 | else |
1597 | result = STRINGP (val2) ? 1 : 0; | |
1598 | } | |
1599 | else | |
1600 | { | |
1601 | if (INTEGERP (val1)) | |
1602 | result = INTEGERP (val2) ? XINT (val1) - XINT (val2) : -1; | |
1603 | else | |
1604 | result = INTEGERP (val2) ? 1 : 0; | |
1605 | } | |
1606 | if (result) | |
1607 | return result; | |
1608 | } | |
1609 | return 0; | |
82641697 GM |
1610 | } |
1611 | ||
2dee4c0b KH |
1612 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
1613 | doc: /* Return a list of available fonts of family FAMILY on FRAME. | |
1614 | If FAMILY is omitted or nil, list all families. | |
1615 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
1616 | `?' and `*'. | |
1617 | If FRAME is omitted or nil, use the selected frame. | |
1618 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
1619 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
1620 | FAMILY is the font family name. POINT-SIZE is the size of the | |
1621 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
1622 | width, weight and slant of the font. These symbols are the same as for | |
1623 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
1624 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
1625 | giving the registry and encoding of the font. | |
1626 | The result list is sorted according to the current setting of | |
1627 | the face font sort order. */) | |
5842a27b | 1628 | (Lisp_Object family, Lisp_Object frame) |
2dee4c0b | 1629 | { |
022eef62 CY |
1630 | Lisp_Object font_spec, list, *drivers, vec; |
1631 | int i, nfonts, ndrivers; | |
2dee4c0b | 1632 | Lisp_Object result; |
82641697 | 1633 | |
62057df6 KH |
1634 | if (NILP (frame)) |
1635 | frame = selected_frame; | |
1636 | CHECK_LIVE_FRAME (frame); | |
1637 | ||
1638 | font_spec = Ffont_spec (0, NULL); | |
2dee4c0b KH |
1639 | if (!NILP (family)) |
1640 | { | |
1641 | CHECK_STRING (family); | |
6b1f69f1 | 1642 | font_parse_family_registry (family, Qnil, font_spec); |
2dee4c0b | 1643 | } |
022eef62 CY |
1644 | |
1645 | list = font_list_entities (frame, font_spec); | |
1646 | if (NILP (list)) | |
2dee4c0b | 1647 | return Qnil; |
022eef62 CY |
1648 | |
1649 | /* Sort the font entities. */ | |
1650 | for (i = 0; i < 4; i++) | |
1651 | switch (font_sort_order[i]) | |
1652 | { | |
1653 | case XLFD_SWIDTH: | |
1654 | font_props_for_sorting[i] = FONT_WIDTH_INDEX; break; | |
1655 | case XLFD_POINT_SIZE: | |
1656 | font_props_for_sorting[i] = FONT_SIZE_INDEX; break; | |
1657 | case XLFD_WEIGHT: | |
1658 | font_props_for_sorting[i] = FONT_WEIGHT_INDEX; break; | |
1659 | default: | |
1660 | font_props_for_sorting[i] = FONT_SLANT_INDEX; break; | |
1661 | } | |
1662 | font_props_for_sorting[i++] = FONT_FAMILY_INDEX; | |
1663 | font_props_for_sorting[i++] = FONT_FOUNDRY_INDEX; | |
1664 | font_props_for_sorting[i++] = FONT_ADSTYLE_INDEX; | |
1665 | font_props_for_sorting[i++] = FONT_REGISTRY_INDEX; | |
1666 | ||
1667 | ndrivers = XINT (Flength (list)); | |
1668 | drivers = alloca (sizeof (Lisp_Object) * ndrivers); | |
1669 | for (i = 0; i < ndrivers; i++, list = XCDR (list)) | |
1670 | drivers[i] = XCAR (list); | |
1671 | vec = Fvconcat (ndrivers, drivers); | |
1672 | nfonts = ASIZE (vec); | |
1673 | ||
1674 | qsort (XVECTOR (vec)->contents, nfonts, sizeof (Lisp_Object), | |
1675 | compare_fonts_by_sort_order); | |
82641697 | 1676 | |
2dee4c0b KH |
1677 | result = Qnil; |
1678 | for (i = nfonts - 1; i >= 0; --i) | |
1679 | { | |
1680 | Lisp_Object font = AREF (vec, i); | |
1681 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); | |
1682 | int point; | |
1683 | Lisp_Object spacing; | |
1684 | ||
1685 | ASET (v, 0, AREF (font, FONT_FAMILY_INDEX)); | |
1686 | ASET (v, 1, FONT_WIDTH_SYMBOLIC (font)); | |
1687 | point = PIXEL_TO_POINT (XINT (AREF (font, FONT_SIZE_INDEX)) * 10, | |
62057df6 | 1688 | XFRAME (frame)->resy); |
2dee4c0b KH |
1689 | ASET (v, 2, make_number (point)); |
1690 | ASET (v, 3, FONT_WEIGHT_SYMBOLIC (font)); | |
1691 | ASET (v, 4, FONT_SLANT_SYMBOLIC (font)); | |
1692 | spacing = Ffont_get (font, QCspacing); | |
1693 | ASET (v, 5, (NILP (spacing) || EQ (spacing, Qp)) ? Qnil : Qt); | |
62057df6 | 1694 | ASET (v, 6, Ffont_xlfd_name (font, Qnil)); |
2dee4c0b | 1695 | ASET (v, 7, AREF (font, FONT_REGISTRY_INDEX)); |
82641697 | 1696 | |
2dee4c0b KH |
1697 | result = Fcons (v, result); |
1698 | } | |
82641697 | 1699 | |
2dee4c0b | 1700 | return result; |
82641697 GM |
1701 | } |
1702 | ||
2dee4c0b KH |
1703 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, |
1704 | doc: /* Return a list of the names of available fonts matching PATTERN. | |
1705 | If optional arguments FACE and FRAME are specified, return only fonts | |
1706 | the same size as FACE on FRAME. | |
21bdb81a CY |
1707 | |
1708 | PATTERN should be a string containing a font name in the XLFD, | |
1709 | Fontconfig, or GTK format. A font name given in the XLFD format may | |
1710 | contain wildcard characters: | |
2dee4c0b KH |
1711 | the * character matches any substring, and |
1712 | the ? character matches any single character. | |
1713 | PATTERN is case-insensitive. | |
2dee4c0b KH |
1714 | |
1715 | The return value is a list of strings, suitable as arguments to | |
d5ab09cd | 1716 | `set-face-font'. |
82641697 | 1717 | |
2dee4c0b KH |
1718 | Fonts Emacs can't use may or may not be excluded |
1719 | even if they match PATTERN and FACE. | |
1720 | The optional fourth argument MAXIMUM sets a limit on how many | |
1721 | fonts to match. The first MAXIMUM fonts are reported. | |
1722 | The optional fifth argument WIDTH, if specified, is a number of columns | |
1723 | occupied by a character of a font. In that case, return only fonts | |
1724 | the WIDTH times as wide as FACE on FRAME. */) | |
5842a27b | 1725 | (Lisp_Object pattern, Lisp_Object face, Lisp_Object frame, Lisp_Object maximum, Lisp_Object width) |
82641697 | 1726 | { |
2dee4c0b | 1727 | struct frame *f; |
1e9966ea | 1728 | int size, avgwidth IF_LINT (= 0); |
82641697 | 1729 | |
2dee4c0b KH |
1730 | check_x (); |
1731 | CHECK_STRING (pattern); | |
82641697 | 1732 | |
2dee4c0b KH |
1733 | if (! NILP (maximum)) |
1734 | CHECK_NATNUM (maximum); | |
82641697 | 1735 | |
2dee4c0b KH |
1736 | if (!NILP (width)) |
1737 | CHECK_NUMBER (width); | |
82641697 | 1738 | |
2dee4c0b KH |
1739 | /* We can't simply call check_x_frame because this function may be |
1740 | called before any frame is created. */ | |
1741 | if (NILP (frame)) | |
1742 | frame = selected_frame; | |
1743 | f = frame_or_selected_frame (frame, 2); | |
1744 | if (! FRAME_WINDOW_P (f)) | |
1745 | { | |
1746 | /* Perhaps we have not yet created any frame. */ | |
1747 | f = NULL; | |
1748 | frame = Qnil; | |
1749 | face = Qnil; | |
1750 | } | |
82641697 | 1751 | |
2dee4c0b | 1752 | /* Determine the width standard for comparison with the fonts we find. */ |
82641697 | 1753 | |
2dee4c0b KH |
1754 | if (NILP (face)) |
1755 | size = 0; | |
1756 | else | |
1757 | { | |
1758 | /* This is of limited utility since it works with character | |
1759 | widths. Keep it for compatibility. --gerd. */ | |
1760 | int face_id = lookup_named_face (f, face, 0); | |
071048a3 PE |
1761 | struct face *width_face = (face_id < 0 |
1762 | ? NULL | |
1763 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 1764 | |
071048a3 | 1765 | if (width_face && width_face->font) |
2dee4c0b | 1766 | { |
071048a3 PE |
1767 | size = width_face->font->pixel_size; |
1768 | avgwidth = width_face->font->average_width; | |
2dee4c0b KH |
1769 | } |
1770 | else | |
1771 | { | |
1772 | size = FRAME_FONT (f)->pixel_size; | |
1773 | avgwidth = FRAME_FONT (f)->average_width; | |
1774 | } | |
1775 | if (!NILP (width)) | |
1776 | avgwidth *= XINT (width); | |
1777 | } | |
82641697 | 1778 | |
2dee4c0b KH |
1779 | { |
1780 | Lisp_Object font_spec; | |
a4eec626 | 1781 | Lisp_Object args[2], tail; |
82641697 | 1782 | |
2dee4c0b | 1783 | font_spec = font_spec_from_name (pattern); |
21bdb81a CY |
1784 | if (!FONTP (font_spec)) |
1785 | signal_error ("Invalid font name", pattern); | |
1786 | ||
2dee4c0b KH |
1787 | if (size) |
1788 | { | |
1789 | Ffont_put (font_spec, QCsize, make_number (size)); | |
1790 | Ffont_put (font_spec, QCavgwidth, make_number (avgwidth)); | |
1791 | } | |
34e97272 | 1792 | args[0] = Flist_fonts (font_spec, frame, maximum, font_spec); |
a4eec626 | 1793 | for (tail = args[0]; CONSP (tail); tail = XCDR (tail)) |
493dcf2c KH |
1794 | { |
1795 | Lisp_Object font_entity; | |
1796 | ||
1797 | font_entity = XCAR (tail); | |
1798 | if ((NILP (AREF (font_entity, FONT_SIZE_INDEX)) | |
1799 | || XINT (AREF (font_entity, FONT_SIZE_INDEX)) == 0) | |
1800 | && ! NILP (AREF (font_spec, FONT_SIZE_INDEX))) | |
1801 | { | |
1802 | /* This is a scalable font. For backward compatibility, | |
1803 | we set the specified size. */ | |
92470028 | 1804 | font_entity = copy_font_spec (font_entity); |
493dcf2c KH |
1805 | ASET (font_entity, FONT_SIZE_INDEX, |
1806 | AREF (font_spec, FONT_SIZE_INDEX)); | |
1807 | } | |
1808 | XSETCAR (tail, Ffont_xlfd_name (font_entity, Qnil)); | |
1809 | } | |
2dee4c0b KH |
1810 | if (NILP (frame)) |
1811 | /* We don't have to check fontsets. */ | |
1812 | return args[0]; | |
1813 | args[1] = list_fontsets (f, pattern, size); | |
1814 | return Fnconc (2, args); | |
1815 | } | |
82641697 | 1816 | } |
178c5d9c | 1817 | |
2dee4c0b | 1818 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1819 | |
82641697 GM |
1820 | \f |
1821 | /*********************************************************************** | |
1822 | Lisp Faces | |
1823 | ***********************************************************************/ | |
1824 | ||
a08332c0 GM |
1825 | /* Access face attributes of face LFACE, a Lisp vector. */ |
1826 | ||
1827 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
53aaf1e2 | 1828 | #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX) |
a08332c0 GM |
1829 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) |
1830 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
1831 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
1832 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
1833 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
1834 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
1835 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
1836 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
1837 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
1838 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
1839 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
1840 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
1841 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
1842 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
763bc839 | 1843 | #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX) |
82641697 | 1844 | |
73719eba | 1845 | #if XASSERTS |
82641697 GM |
1846 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size |
1847 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
1848 | ||
1849 | #define LFACEP(LFACE) \ | |
1850 | (VECTORP (LFACE) \ | |
77b37c05 | 1851 | && ASIZE (LFACE) == LFACE_VECTOR_SIZE \ |
a08332c0 | 1852 | && EQ (AREF (LFACE, 0), Qface)) |
73719eba | 1853 | #endif |
82641697 | 1854 | |
178c5d9c | 1855 | |
82641697 GM |
1856 | #if GLYPH_DEBUG |
1857 | ||
1858 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
1859 | ||
1860 | static void | |
7d7d0045 | 1861 | check_lface_attrs (Lisp_Object *attrs) |
82641697 GM |
1862 | { |
1863 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2ff10663 | 1864 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
82641697 | 1865 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
53aaf1e2 KH |
1866 | xassert (UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
1867 | || IGNORE_DEFFACE_P (attrs[LFACE_FOUNDRY_INDEX]) | |
1868 | || STRINGP (attrs[LFACE_FOUNDRY_INDEX])); | |
82641697 | 1869 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) |
2ff10663 | 1870 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
82641697 GM |
1871 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
1872 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2ff10663 | 1873 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
1874 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
1875 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
1876 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 | 1877 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2ff10663 | 1878 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
82641697 GM |
1879 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
1880 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2ff10663 | 1881 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
82641697 GM |
1882 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
1883 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2ff10663 | 1884 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
82641697 GM |
1885 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
1886 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
1887 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2ff10663 | 1888 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
82641697 GM |
1889 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
1890 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
1891 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2ff10663 | 1892 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
82641697 GM |
1893 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
1894 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
1895 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2ff10663 | 1896 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
82641697 GM |
1897 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
1898 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
1899 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
1900 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
1901 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2ff10663 | 1902 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
82641697 GM |
1903 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
1904 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2ff10663 | 1905 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
82641697 GM |
1906 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
1907 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2ff10663 | 1908 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
82641697 | 1909 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
2c20458f | 1910 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2ff10663 | 1911 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
2c20458f MB |
1912 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
1913 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
1914 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
1915 | #ifdef HAVE_WINDOW_SYSTEM |
1916 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2ff10663 | 1917 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
82641697 | 1918 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
fef04523 | 1919 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 1920 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
2ff10663 | 1921 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
2dee4c0b | 1922 | || FONTP (attrs[LFACE_FONT_INDEX])); |
763bc839 KH |
1923 | xassert (UNSPECIFIEDP (attrs[LFACE_FONTSET_INDEX]) |
1924 | || STRINGP (attrs[LFACE_FONTSET_INDEX])); | |
82641697 GM |
1925 | #endif |
1926 | } | |
1927 | ||
1928 | ||
1929 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
1930 | ||
1931 | static void | |
7d7d0045 | 1932 | check_lface (Lisp_Object lface) |
82641697 GM |
1933 | { |
1934 | if (!NILP (lface)) | |
1935 | { | |
1936 | xassert (LFACEP (lface)); | |
1937 | check_lface_attrs (XVECTOR (lface)->contents); | |
1938 | } | |
1939 | } | |
1940 | ||
1941 | #else /* GLYPH_DEBUG == 0 */ | |
1942 | ||
1943 | #define check_lface_attrs(attrs) (void) 0 | |
1944 | #define check_lface(lface) (void) 0 | |
1945 | ||
1946 | #endif /* GLYPH_DEBUG == 0 */ | |
1947 | ||
1948 | ||
a0a23346 MB |
1949 | \f |
1950 | /* Face-merge cycle checking. */ | |
1951 | ||
f2cec7a9 MB |
1952 | enum named_merge_point_kind |
1953 | { | |
1954 | NAMED_MERGE_POINT_NORMAL, | |
1955 | NAMED_MERGE_POINT_REMAP | |
1956 | }; | |
1957 | ||
a0a23346 MB |
1958 | /* A `named merge point' is simply a point during face-merging where we |
1959 | look up a face by name. We keep a stack of which named lookups we're | |
1960 | currently processing so that we can easily detect cycles, using a | |
1961 | linked- list of struct named_merge_point structures, typically | |
1962 | allocated on the stack frame of the named lookup functions which are | |
1963 | active (so no consing is required). */ | |
1964 | struct named_merge_point | |
1965 | { | |
1966 | Lisp_Object face_name; | |
f2cec7a9 | 1967 | enum named_merge_point_kind named_merge_point_kind; |
a0a23346 MB |
1968 | struct named_merge_point *prev; |
1969 | }; | |
1970 | ||
1971 | ||
1972 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
1973 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
f2cec7a9 MB |
1974 | FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list |
1975 | pointed to by NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 | 1976 | |
55d4c1b2 | 1977 | static inline int |
a0a23346 MB |
1978 | push_named_merge_point (struct named_merge_point *new_named_merge_point, |
1979 | Lisp_Object face_name, | |
f2cec7a9 | 1980 | enum named_merge_point_kind named_merge_point_kind, |
a0a23346 MB |
1981 | struct named_merge_point **named_merge_points) |
1982 | { | |
1983 | struct named_merge_point *prev; | |
1984 | ||
1985 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
1986 | if (EQ (face_name, prev->face_name)) | |
f2cec7a9 MB |
1987 | { |
1988 | if (prev->named_merge_point_kind == named_merge_point_kind) | |
1989 | /* A cycle, so fail. */ | |
1990 | return 0; | |
1991 | else if (prev->named_merge_point_kind == NAMED_MERGE_POINT_REMAP) | |
1992 | /* A remap `hides ' any previous normal merge points | |
1993 | (because the remap means that it's actually different face), | |
1994 | so as we know the current merge point must be normal, we | |
1995 | can just assume it's OK. */ | |
1996 | break; | |
1997 | } | |
a0a23346 MB |
1998 | |
1999 | new_named_merge_point->face_name = face_name; | |
f2cec7a9 | 2000 | new_named_merge_point->named_merge_point_kind = named_merge_point_kind; |
a0a23346 MB |
2001 | new_named_merge_point->prev = *named_merge_points; |
2002 | ||
2003 | *named_merge_points = new_named_merge_point; | |
2004 | ||
2005 | return 1; | |
2006 | } | |
2007 | ||
2008 | \f | |
39506348 | 2009 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
2010 | to make it a symbol. If FACE_NAME is an alias for another face, |
2011 | return that face's name. | |
2012 | ||
2013 | Return default face in case of errors. */ | |
c7ae3284 GM |
2014 | |
2015 | static Lisp_Object | |
971de7fb | 2016 | resolve_face_name (Lisp_Object face_name, int signal_p) |
c7ae3284 | 2017 | { |
d1bf13b3 KS |
2018 | Lisp_Object orig_face; |
2019 | Lisp_Object tortoise, hare; | |
178c5d9c | 2020 | |
c7ae3284 | 2021 | if (STRINGP (face_name)) |
42a5b22f | 2022 | face_name = intern (SSDATA (face_name)); |
c7ae3284 | 2023 | |
d1bf13b3 KS |
2024 | if (NILP (face_name) || !SYMBOLP (face_name)) |
2025 | return face_name; | |
2026 | ||
2027 | orig_face = face_name; | |
2028 | tortoise = hare = face_name; | |
2029 | ||
2030 | while (1) | |
c7ae3284 | 2031 | { |
d1bf13b3 KS |
2032 | face_name = hare; |
2033 | hare = Fget (hare, Qface_alias); | |
2034 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 2035 | break; |
d1bf13b3 KS |
2036 | |
2037 | face_name = hare; | |
2038 | hare = Fget (hare, Qface_alias); | |
2039 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 2040 | break; |
d1bf13b3 KS |
2041 | |
2042 | tortoise = Fget (tortoise, Qface_alias); | |
2043 | if (EQ (hare, tortoise)) | |
2044 | { | |
2045 | if (signal_p) | |
8009eb44 | 2046 | xsignal1 (Qcircular_list, orig_face); |
d1bf13b3 KS |
2047 | return Qdefault; |
2048 | } | |
c7ae3284 GM |
2049 | } |
2050 | ||
2051 | return face_name; | |
2052 | } | |
2053 | ||
2054 | ||
82641697 | 2055 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
2056 | return the definition for new frames. FACE_NAME may be a string or |
2057 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
f2cec7a9 MB |
2058 | face text properties; Ediff uses that). If SIGNAL_P is non-zero, |
2059 | signal an error if FACE_NAME is not a valid face name. If SIGNAL_P | |
2060 | is zero, value is nil if FACE_NAME is not a valid face name. */ | |
55d4c1b2 | 2061 | static inline Lisp_Object |
971de7fb | 2062 | lface_from_face_name_no_resolve (struct frame *f, Lisp_Object face_name, int signal_p) |
82641697 | 2063 | { |
c7ae3284 | 2064 | Lisp_Object lface; |
82641697 GM |
2065 | |
2066 | if (f) | |
2067 | lface = assq_no_quit (face_name, f->face_alist); | |
2068 | else | |
2069 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2070 | ||
2071 | if (CONSP (lface)) | |
2072 | lface = XCDR (lface); | |
2073 | else if (signal_p) | |
2074 | signal_error ("Invalid face", face_name); | |
2075 | ||
2076 | check_lface (lface); | |
f2cec7a9 | 2077 | |
82641697 GM |
2078 | return lface; |
2079 | } | |
2080 | ||
f2cec7a9 MB |
2081 | /* Return the face definition of FACE_NAME on frame F. F null means |
2082 | return the definition for new frames. FACE_NAME may be a string or | |
2083 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
2084 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
2085 | for another face, return that face's definition. If SIGNAL_P is | |
2086 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2087 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2088 | name. */ | |
55d4c1b2 | 2089 | static inline Lisp_Object |
971de7fb | 2090 | lface_from_face_name (struct frame *f, Lisp_Object face_name, int signal_p) |
f2cec7a9 MB |
2091 | { |
2092 | face_name = resolve_face_name (face_name, signal_p); | |
2093 | return lface_from_face_name_no_resolve (f, face_name, signal_p); | |
2094 | } | |
2095 | ||
82641697 | 2096 | |
e7d7fd8c MB |
2097 | /* Get face attributes of face FACE_NAME from frame-local faces on |
2098 | frame F. Store the resulting attributes in ATTRS which must point | |
2099 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2100 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2101 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2102 | ||
55d4c1b2 | 2103 | static inline int |
971de7fb | 2104 | get_lface_attributes_no_remap (struct frame *f, Lisp_Object face_name, Lisp_Object *attrs, int signal_p) |
e7d7fd8c MB |
2105 | { |
2106 | Lisp_Object lface; | |
e7d7fd8c | 2107 | |
f2cec7a9 MB |
2108 | lface = lface_from_face_name_no_resolve (f, face_name, signal_p); |
2109 | ||
2110 | if (! NILP (lface)) | |
72af86bd AS |
2111 | memcpy (attrs, XVECTOR (lface)->contents, |
2112 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
f2cec7a9 MB |
2113 | |
2114 | return !NILP (lface); | |
2115 | } | |
2116 | ||
2117 | /* Get face attributes of face FACE_NAME from frame-local faces on frame | |
2118 | F. Store the resulting attributes in ATTRS which must point to a | |
2119 | vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an | |
2120 | alias for another face, use that face's definition. If SIGNAL_P is | |
2121 | non-zero, signal an error if FACE_NAME does not name a face. | |
2122 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2123 | ||
55d4c1b2 | 2124 | static inline int |
971de7fb | 2125 | get_lface_attributes (struct frame *f, Lisp_Object face_name, Lisp_Object *attrs, int signal_p, struct named_merge_point *named_merge_points) |
f2cec7a9 MB |
2126 | { |
2127 | Lisp_Object face_remapping; | |
2128 | ||
2129 | face_name = resolve_face_name (face_name, signal_p); | |
2130 | ||
2131 | /* See if SYMBOL has been remapped to some other face (usually this | |
2132 | is done buffer-locally). */ | |
2133 | face_remapping = assq_no_quit (face_name, Vface_remapping_alist); | |
2134 | if (CONSP (face_remapping)) | |
e7d7fd8c | 2135 | { |
f2cec7a9 MB |
2136 | struct named_merge_point named_merge_point; |
2137 | ||
2138 | if (push_named_merge_point (&named_merge_point, | |
2139 | face_name, NAMED_MERGE_POINT_REMAP, | |
2140 | &named_merge_points)) | |
2141 | { | |
2142 | int i; | |
2143 | ||
2144 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2145 | attrs[i] = Qunspecified; | |
2146 | ||
2147 | return merge_face_ref (f, XCDR (face_remapping), attrs, | |
2148 | signal_p, named_merge_points); | |
2149 | } | |
e7d7fd8c | 2150 | } |
e7d7fd8c | 2151 | |
f2cec7a9 MB |
2152 | /* Default case, no remapping. */ |
2153 | return get_lface_attributes_no_remap (f, face_name, attrs, signal_p); | |
e7d7fd8c MB |
2154 | } |
2155 | ||
2156 | ||
82641697 GM |
2157 | /* Non-zero if all attributes in face attribute vector ATTRS are |
2158 | specified, i.e. are non-nil. */ | |
2159 | ||
2160 | static int | |
971de7fb | 2161 | lface_fully_specified_p (Lisp_Object *attrs) |
82641697 GM |
2162 | { |
2163 | int i; | |
2164 | ||
2165 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
2dee4c0b | 2166 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX) |
9e2a2647 | 2167 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i]))) |
6288c62f | 2168 | break; |
82641697 GM |
2169 | |
2170 | return i == LFACE_VECTOR_SIZE; | |
2171 | } | |
2172 | ||
c3cee013 | 2173 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 2174 | |
2dee4c0b KH |
2175 | /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT. |
2176 | If FORCE_P is zero, set only unspecified attributes of LFACE. The | |
2177 | exception is `font' attribute. It is set to FONT_OBJECT regardless | |
2178 | of FORCE_P. */ | |
178c5d9c | 2179 | |
82641697 | 2180 | static int |
971de7fb | 2181 | set_lface_from_font (struct frame *f, Lisp_Object lface, Lisp_Object font_object, int force_p) |
f4d3bea3 | 2182 | { |
f4d3bea3 | 2183 | Lisp_Object val; |
2dee4c0b | 2184 | struct font *font = XFONT_OBJECT (font_object); |
f4d3bea3 KH |
2185 | |
2186 | /* Set attributes only if unspecified, otherwise face defaults for | |
2187 | new frames would never take effect. If the font doesn't have a | |
2188 | specific property, set a normal value for that. */ | |
2189 | ||
2190 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2191 | { | |
2dee4c0b | 2192 | Lisp_Object family = AREF (font_object, FONT_FAMILY_INDEX); |
f4d3bea3 | 2193 | |
53aaf1e2 KH |
2194 | LFACE_FAMILY (lface) = SYMBOL_NAME (family); |
2195 | } | |
2196 | ||
2197 | if (force_p || UNSPECIFIEDP (LFACE_FOUNDRY (lface))) | |
2198 | { | |
2199 | Lisp_Object foundry = AREF (font_object, FONT_FOUNDRY_INDEX); | |
2200 | ||
2201 | LFACE_FOUNDRY (lface) = SYMBOL_NAME (foundry); | |
f4d3bea3 KH |
2202 | } |
2203 | ||
2204 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2205 | { | |
2dee4c0b | 2206 | int pt = PIXEL_TO_POINT (font->pixel_size * 10, f->resy); |
f4d3bea3 KH |
2207 | |
2208 | xassert (pt > 0); | |
2209 | LFACE_HEIGHT (lface) = make_number (pt); | |
2210 | } | |
2211 | ||
f4d3bea3 KH |
2212 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
2213 | { | |
2dee4c0b KH |
2214 | val = FONT_WEIGHT_FOR_FACE (font_object); |
2215 | LFACE_WEIGHT (lface) = ! NILP (val) ? val :Qnormal; | |
f4d3bea3 KH |
2216 | } |
2217 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
2218 | { | |
2dee4c0b KH |
2219 | val = FONT_SLANT_FOR_FACE (font_object); |
2220 | LFACE_SLANT (lface) = ! NILP (val) ? val : Qnormal; | |
f4d3bea3 KH |
2221 | } |
2222 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
2223 | { | |
2dee4c0b KH |
2224 | val = FONT_WIDTH_FOR_FACE (font_object); |
2225 | LFACE_SWIDTH (lface) = ! NILP (val) ? val : Qnormal; | |
f4d3bea3 KH |
2226 | } |
2227 | ||
2dee4c0b KH |
2228 | LFACE_FONT (lface) = font_object; |
2229 | return 1; | |
f4d3bea3 | 2230 | } |
f4d3bea3 | 2231 | |
c3cee013 | 2232 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2233 | |
2234 | ||
2c20458f MB |
2235 | /* Merges the face height FROM with the face height TO, and returns the |
2236 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
2237 | returned instead. FROM and TO may be either absolute face heights or |
2238 | `relative' heights; the returned value is always an absolute height | |
fe69cf00 | 2239 | unless both FROM and TO are relative. */ |
2c20458f | 2240 | |
6b463e58 | 2241 | static Lisp_Object |
971de7fb | 2242 | merge_face_heights (Lisp_Object from, Lisp_Object to, Lisp_Object invalid) |
2c20458f | 2243 | { |
cdfaafa9 | 2244 | Lisp_Object result = invalid; |
2c20458f MB |
2245 | |
2246 | if (INTEGERP (from)) | |
cdfaafa9 MB |
2247 | /* FROM is absolute, just use it as is. */ |
2248 | result = from; | |
2249 | else if (FLOATP (from)) | |
2250 | /* FROM is a scale, use it to adjust TO. */ | |
2251 | { | |
2252 | if (INTEGERP (to)) | |
2253 | /* relative X absolute => absolute */ | |
c319cf24 | 2254 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
2255 | else if (FLOATP (to)) |
2256 | /* relative X relative => relative */ | |
2257 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
2258 | else if (UNSPECIFIEDP (to)) |
2259 | result = from; | |
2c20458f | 2260 | } |
2c20458f | 2261 | else if (FUNCTIONP (from)) |
cdfaafa9 | 2262 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
2263 | { |
2264 | /* Call function with current height as argument. | |
2265 | From is the new height. */ | |
cdfaafa9 | 2266 | Lisp_Object args[2]; |
2c20458f MB |
2267 | |
2268 | args[0] = from; | |
2269 | args[1] = to; | |
cdfaafa9 | 2270 | result = safe_call (2, args); |
2c20458f | 2271 | |
cdfaafa9 MB |
2272 | /* Ensure that if TO was absolute, so is the result. */ |
2273 | if (INTEGERP (to) && !INTEGERP (result)) | |
2274 | result = invalid; | |
2c20458f MB |
2275 | } |
2276 | ||
cdfaafa9 | 2277 | return result; |
2c20458f MB |
2278 | } |
2279 | ||
2280 | ||
2281 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 | 2282 | store the resulting attributes in TO, which must be already be |
e7d7fd8c MB |
2283 | completely specified and contain only absolute attributes. Every |
2284 | specified attribute of FROM overrides the corresponding attribute of | |
2285 | TO; relative attributes in FROM are merged with the absolute value in | |
2286 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect | |
f2cec7a9 MB |
2287 | loops in face inheritance/remapping; it should be 0 when called from |
2288 | other places. */ | |
82641697 | 2289 | |
55d4c1b2 | 2290 | static inline void |
971de7fb | 2291 | merge_face_vectors (struct frame *f, Lisp_Object *from, Lisp_Object *to, struct named_merge_point *named_merge_points) |
82641697 GM |
2292 | { |
2293 | int i; | |
2c20458f MB |
2294 | |
2295 | /* If FROM inherits from some other faces, merge their attributes into | |
2296 | TO before merging FROM's direct attributes. Note that an :inherit | |
2297 | attribute of `unspecified' is the same as one of nil; we never | |
2298 | merge :inherit attributes, so nil is more correct, but lots of | |
2299 | other code uses `unspecified' as a generic value for face attributes. */ | |
2300 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
2301 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 2302 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 2303 | |
2dee4c0b KH |
2304 | i = LFACE_FONT_INDEX; |
2305 | if (!UNSPECIFIEDP (from[i])) | |
2306 | { | |
2307 | if (!UNSPECIFIEDP (to[i])) | |
92470028 | 2308 | to[i] = merge_font_spec (from[i], to[i]); |
2dee4c0b | 2309 | else |
92470028 | 2310 | to[i] = copy_font_spec (from[i]); |
89dc9a8e KH |
2311 | if (! NILP (AREF (to[i], FONT_FOUNDRY_INDEX))) |
2312 | to[LFACE_FOUNDRY_INDEX] = SYMBOL_NAME (AREF (to[i], FONT_FOUNDRY_INDEX)); | |
2313 | if (! NILP (AREF (to[i], FONT_FAMILY_INDEX))) | |
2314 | to[LFACE_FAMILY_INDEX] = SYMBOL_NAME (AREF (to[i], FONT_FAMILY_INDEX)); | |
2315 | if (! NILP (AREF (to[i], FONT_WEIGHT_INDEX))) | |
2316 | to[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (to[i]); | |
2317 | if (! NILP (AREF (to[i], FONT_SLANT_INDEX))) | |
2318 | to[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (to[i]); | |
2319 | if (! NILP (AREF (to[i], FONT_WIDTH_INDEX))) | |
2320 | to[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (to[i]); | |
2dee4c0b KH |
2321 | ASET (to[i], FONT_SIZE_INDEX, Qnil); |
2322 | } | |
87188200 | 2323 | |
82641697 GM |
2324 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
2325 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
2326 | { |
2327 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
2dee4c0b KH |
2328 | { |
2329 | to[i] = merge_face_heights (from[i], to[i], to[i]); | |
2330 | font_clear_prop (to, FONT_SIZE_INDEX); | |
2331 | } | |
89dc9a8e KH |
2332 | else if (i != LFACE_FONT_INDEX |
2333 | && ! EQ (to[i], from[i])) | |
2dee4c0b KH |
2334 | { |
2335 | to[i] = from[i]; | |
2336 | if (i >= LFACE_FAMILY_INDEX && i <=LFACE_SLANT_INDEX) | |
2337 | font_clear_prop (to, | |
2338 | (i == LFACE_FAMILY_INDEX ? FONT_FAMILY_INDEX | |
53aaf1e2 | 2339 | : i == LFACE_FOUNDRY_INDEX ? FONT_FOUNDRY_INDEX |
2dee4c0b KH |
2340 | : i == LFACE_SWIDTH_INDEX ? FONT_WIDTH_INDEX |
2341 | : i == LFACE_HEIGHT_INDEX ? FONT_SIZE_INDEX | |
2342 | : i == LFACE_WEIGHT_INDEX ? FONT_WEIGHT_INDEX | |
2343 | : FONT_SLANT_INDEX)); | |
2344 | } | |
ab8469eb | 2345 | } |
2c20458f MB |
2346 | |
2347 | /* TO is always an absolute face, which should inherit from nothing. | |
2348 | We blindly copy the :inherit attribute above and fix it up here. */ | |
2349 | to[LFACE_INHERIT_INDEX] = Qnil; | |
2350 | } | |
2351 | ||
a0a23346 MB |
2352 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
2353 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
2354 | inheritance. Returns true if FACE_NAME is a valid face name and | |
2355 | merging succeeded. */ | |
6288c62f | 2356 | |
a0a23346 | 2357 | static int |
971de7fb | 2358 | merge_named_face (struct frame *f, Lisp_Object face_name, Lisp_Object *to, struct named_merge_point *named_merge_points) |
2c20458f | 2359 | { |
a0a23346 | 2360 | struct named_merge_point named_merge_point; |
2c20458f | 2361 | |
a0a23346 | 2362 | if (push_named_merge_point (&named_merge_point, |
f2cec7a9 MB |
2363 | face_name, NAMED_MERGE_POINT_NORMAL, |
2364 | &named_merge_points)) | |
2c20458f | 2365 | { |
e1e419ec | 2366 | struct gcpro gcpro1; |
e7d7fd8c | 2367 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
f2cec7a9 | 2368 | int ok = get_lface_attributes (f, face_name, from, 0, named_merge_points); |
2c20458f | 2369 | |
e7d7fd8c MB |
2370 | if (ok) |
2371 | { | |
2372 | GCPRO1 (named_merge_point.face_name); | |
2373 | merge_face_vectors (f, from, to, named_merge_points); | |
2374 | UNGCPRO; | |
2375 | } | |
2376 | ||
2377 | return ok; | |
2c20458f | 2378 | } |
a0a23346 MB |
2379 | else |
2380 | return 0; | |
82641697 GM |
2381 | } |
2382 | ||
2383 | ||
a0a23346 MB |
2384 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
2385 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
2386 | problems with FACE_REF cause an error message to be shown. Return | |
2387 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
2388 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
2389 | list structure; it may be 0 for most callers. | |
2390 | ||
2391 | FACE_REF may be a single face specification or a list of such | |
2392 | specifications. Each face specification can be: | |
82641697 GM |
2393 | |
2394 | 1. A symbol or string naming a Lisp face. | |
2395 | ||
2396 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
2397 | KEYWORD is a face attribute name, and value is an appropriate value | |
2398 | for that attribute. | |
2399 | ||
2400 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
2401 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
2402 | for compatibility with 20.2. | |
2403 | ||
2404 | Face specifications earlier in lists take precedence over later | |
2405 | specifications. */ | |
178c5d9c | 2406 | |
a0a23346 | 2407 | static int |
971de7fb | 2408 | merge_face_ref (struct frame *f, Lisp_Object face_ref, Lisp_Object *to, int err_msgs, struct named_merge_point *named_merge_points) |
82641697 | 2409 | { |
a0a23346 MB |
2410 | int ok = 1; /* Succeed without an error? */ |
2411 | ||
2412 | if (CONSP (face_ref)) | |
82641697 | 2413 | { |
a0a23346 | 2414 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 2415 | |
82641697 GM |
2416 | if (EQ (first, Qforeground_color) |
2417 | || EQ (first, Qbackground_color)) | |
2418 | { | |
2419 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
2420 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 2421 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
2422 | Lisp_Object color = first; |
2423 | ||
2424 | if (STRINGP (color_name)) | |
2425 | { | |
2426 | if (EQ (color, Qforeground_color)) | |
2427 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
2428 | else | |
2429 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
2430 | } | |
2431 | else | |
a0a23346 MB |
2432 | { |
2433 | if (err_msgs) | |
2434 | add_to_log ("Invalid face color", color_name, Qnil); | |
2435 | ok = 0; | |
2436 | } | |
82641697 GM |
2437 | } |
2438 | else if (SYMBOLP (first) | |
d5db4077 | 2439 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
2440 | { |
2441 | /* Assume this is the property list form. */ | |
a0a23346 | 2442 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 2443 | { |
a0a23346 MB |
2444 | Lisp_Object keyword = XCAR (face_ref); |
2445 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
2446 | int err = 0; | |
82641697 | 2447 | |
d9639b25 RS |
2448 | /* Specifying `unspecified' is a no-op. */ |
2449 | if (EQ (value, Qunspecified)) | |
2450 | ; | |
2451 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
2452 | { |
2453 | if (STRINGP (value)) | |
2dee4c0b KH |
2454 | { |
2455 | to[LFACE_FAMILY_INDEX] = value; | |
2456 | font_clear_prop (to, FONT_FAMILY_INDEX); | |
2457 | } | |
82641697 | 2458 | else |
a0a23346 | 2459 | err = 1; |
82641697 | 2460 | } |
53aaf1e2 KH |
2461 | else if (EQ (keyword, QCfoundry)) |
2462 | { | |
2463 | if (STRINGP (value)) | |
2464 | { | |
2465 | to[LFACE_FOUNDRY_INDEX] = value; | |
2466 | font_clear_prop (to, FONT_FOUNDRY_INDEX); | |
2467 | } | |
2468 | else | |
2469 | err = 1; | |
2470 | } | |
82641697 GM |
2471 | else if (EQ (keyword, QCheight)) |
2472 | { | |
2c20458f | 2473 | Lisp_Object new_height = |
e1e419ec | 2474 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 2475 | |
a0a23346 | 2476 | if (! NILP (new_height)) |
2dee4c0b KH |
2477 | { |
2478 | to[LFACE_HEIGHT_INDEX] = new_height; | |
2479 | font_clear_prop (to, FONT_SIZE_INDEX); | |
2480 | } | |
a0a23346 MB |
2481 | else |
2482 | err = 1; | |
82641697 GM |
2483 | } |
2484 | else if (EQ (keyword, QCweight)) | |
2485 | { | |
2dee4c0b KH |
2486 | if (SYMBOLP (value) && FONT_WEIGHT_NAME_NUMERIC (value) >= 0) |
2487 | { | |
2488 | to[LFACE_WEIGHT_INDEX] = value; | |
2489 | font_clear_prop (to, FONT_WEIGHT_INDEX); | |
2490 | } | |
82641697 | 2491 | else |
a0a23346 | 2492 | err = 1; |
82641697 GM |
2493 | } |
2494 | else if (EQ (keyword, QCslant)) | |
2495 | { | |
2dee4c0b KH |
2496 | if (SYMBOLP (value) && FONT_SLANT_NAME_NUMERIC (value) >= 0) |
2497 | { | |
2498 | to[LFACE_SLANT_INDEX] = value; | |
2499 | font_clear_prop (to, FONT_SLANT_INDEX); | |
2500 | } | |
82641697 | 2501 | else |
a0a23346 | 2502 | err = 1; |
82641697 GM |
2503 | } |
2504 | else if (EQ (keyword, QCunderline)) | |
2505 | { | |
2506 | if (EQ (value, Qt) | |
2507 | || NILP (value) | |
2508 | || STRINGP (value)) | |
2509 | to[LFACE_UNDERLINE_INDEX] = value; | |
2510 | else | |
a0a23346 | 2511 | err = 1; |
82641697 GM |
2512 | } |
2513 | else if (EQ (keyword, QCoverline)) | |
2514 | { | |
2515 | if (EQ (value, Qt) | |
2516 | || NILP (value) | |
2517 | || STRINGP (value)) | |
2518 | to[LFACE_OVERLINE_INDEX] = value; | |
2519 | else | |
a0a23346 | 2520 | err = 1; |
82641697 GM |
2521 | } |
2522 | else if (EQ (keyword, QCstrike_through)) | |
2523 | { | |
2524 | if (EQ (value, Qt) | |
2525 | || NILP (value) | |
2526 | || STRINGP (value)) | |
2527 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
2528 | else | |
a0a23346 | 2529 | err = 1; |
82641697 GM |
2530 | } |
2531 | else if (EQ (keyword, QCbox)) | |
2532 | { | |
2533 | if (EQ (value, Qt)) | |
2534 | value = make_number (1); | |
2535 | if (INTEGERP (value) | |
2536 | || STRINGP (value) | |
2537 | || CONSP (value) | |
2538 | || NILP (value)) | |
2539 | to[LFACE_BOX_INDEX] = value; | |
2540 | else | |
a0a23346 | 2541 | err = 1; |
82641697 GM |
2542 | } |
2543 | else if (EQ (keyword, QCinverse_video) | |
2544 | || EQ (keyword, QCreverse_video)) | |
2545 | { | |
2546 | if (EQ (value, Qt) || NILP (value)) | |
2547 | to[LFACE_INVERSE_INDEX] = value; | |
2548 | else | |
a0a23346 | 2549 | err = 1; |
82641697 GM |
2550 | } |
2551 | else if (EQ (keyword, QCforeground)) | |
2552 | { | |
2553 | if (STRINGP (value)) | |
2554 | to[LFACE_FOREGROUND_INDEX] = value; | |
2555 | else | |
a0a23346 | 2556 | err = 1; |
82641697 GM |
2557 | } |
2558 | else if (EQ (keyword, QCbackground)) | |
2559 | { | |
2560 | if (STRINGP (value)) | |
2561 | to[LFACE_BACKGROUND_INDEX] = value; | |
2562 | else | |
a0a23346 | 2563 | err = 1; |
82641697 GM |
2564 | } |
2565 | else if (EQ (keyword, QCstipple)) | |
2566 | { | |
edfda783 | 2567 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
fef04523 | 2568 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
2569 | if (!NILP (pixmap_p)) |
2570 | to[LFACE_STIPPLE_INDEX] = value; | |
2571 | else | |
a0a23346 | 2572 | err = 1; |
82641697 GM |
2573 | #endif |
2574 | } | |
2575 | else if (EQ (keyword, QCwidth)) | |
2576 | { | |
2dee4c0b KH |
2577 | if (SYMBOLP (value) && FONT_WIDTH_NAME_NUMERIC (value) >= 0) |
2578 | { | |
2579 | to[LFACE_SWIDTH_INDEX] = value; | |
2580 | font_clear_prop (to, FONT_WIDTH_INDEX); | |
2581 | } | |
82641697 | 2582 | else |
a0a23346 | 2583 | err = 1; |
82641697 | 2584 | } |
2c20458f MB |
2585 | else if (EQ (keyword, QCinherit)) |
2586 | { | |
a0a23346 MB |
2587 | /* This is not really very useful; it's just like a |
2588 | normal face reference. */ | |
2589 | if (! merge_face_ref (f, value, to, | |
2590 | err_msgs, named_merge_points)) | |
2591 | err = 1; | |
2c20458f | 2592 | } |
82641697 | 2593 | else |
a0a23346 | 2594 | err = 1; |
82641697 | 2595 | |
a0a23346 MB |
2596 | if (err) |
2597 | { | |
2598 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
2599 | ok = 0; | |
2600 | } | |
82641697 | 2601 | |
a0a23346 | 2602 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
2603 | } |
2604 | } | |
2605 | else | |
2606 | { | |
a0a23346 MB |
2607 | /* This is a list of face refs. Those at the beginning of the |
2608 | list take precedence over what follows, so we have to merge | |
2609 | from the end backwards. */ | |
2610 | Lisp_Object next = XCDR (face_ref); | |
2611 | ||
2612 | if (! NILP (next)) | |
2613 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
2614 | ||
2615 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
2616 | ok = 0; | |
82641697 GM |
2617 | } |
2618 | } | |
2619 | else | |
2620 | { | |
a0a23346 MB |
2621 | /* FACE_REF ought to be a face name. */ |
2622 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
2623 | if (!ok && err_msgs) | |
2624 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 2625 | } |
a0a23346 MB |
2626 | |
2627 | return ok; | |
82641697 GM |
2628 | } |
2629 | ||
2630 | ||
2631 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
2632 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 2633 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
2634 | If FACE was not known as a face before, create a new one. |
2635 | If optional argument FRAME is specified, make a frame-local face | |
2636 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 | 2637 | Value is a vector of face attributes. */) |
5842a27b | 2638 | (Lisp_Object face, Lisp_Object frame) |
82641697 GM |
2639 | { |
2640 | Lisp_Object global_lface, lface; | |
2641 | struct frame *f; | |
2642 | int i; | |
2643 | ||
b7826503 | 2644 | CHECK_SYMBOL (face); |
82641697 | 2645 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 2646 | |
82641697 GM |
2647 | if (!NILP (frame)) |
2648 | { | |
b7826503 | 2649 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
2650 | f = XFRAME (frame); |
2651 | lface = lface_from_face_name (f, face, 0); | |
2652 | } | |
2653 | else | |
2654 | f = NULL, lface = Qnil; | |
2655 | ||
2656 | /* Add a global definition if there is none. */ | |
2657 | if (NILP (global_lface)) | |
2658 | { | |
2659 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
2660 | Qunspecified); | |
dfae5f9a | 2661 | ASET (global_lface, 0, Qface); |
178c5d9c | 2662 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 2663 | Vface_new_frame_defaults); |
178c5d9c | 2664 | |
82641697 GM |
2665 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
2666 | face id to Lisp face is given by the vector lface_id_to_name. | |
2667 | The mapping from Lisp face to Lisp face id is given by the | |
2668 | property `face' of the Lisp face name. */ | |
2669 | if (next_lface_id == lface_id_to_name_size) | |
2670 | { | |
2671 | int new_size = max (50, 2 * lface_id_to_name_size); | |
2672 | int sz = new_size * sizeof *lface_id_to_name; | |
2673 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
2674 | lface_id_to_name_size = new_size; | |
2675 | } | |
178c5d9c | 2676 | |
82641697 GM |
2677 | lface_id_to_name[next_lface_id] = face; |
2678 | Fput (face, Qface, make_number (next_lface_id)); | |
2679 | ++next_lface_id; | |
2680 | } | |
2681 | else if (f == NULL) | |
2682 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 2683 | ASET (global_lface, i, Qunspecified); |
178c5d9c | 2684 | |
82641697 GM |
2685 | /* Add a frame-local definition. */ |
2686 | if (f) | |
2687 | { | |
2688 | if (NILP (lface)) | |
2689 | { | |
2690 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
2691 | Qunspecified); | |
dfae5f9a | 2692 | ASET (lface, 0, Qface); |
82641697 GM |
2693 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
2694 | } | |
2695 | else | |
2696 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 2697 | ASET (lface, i, Qunspecified); |
82641697 GM |
2698 | } |
2699 | else | |
2700 | lface = global_lface; | |
2701 | ||
33565969 RS |
2702 | /* Changing a named face means that all realized faces depending on |
2703 | that face are invalid. Since we cannot tell which realized faces | |
2704 | depend on the face, make sure they are all removed. This is done | |
2705 | by incrementing face_change_count. The next call to | |
2706 | init_iterator will then free realized faces. */ | |
46b00436 KS |
2707 | if (NILP (Fget (face, Qface_no_inherit))) |
2708 | { | |
2709 | ++face_change_count; | |
2710 | ++windows_or_buffers_changed; | |
2711 | } | |
33565969 | 2712 | |
82641697 GM |
2713 | xassert (LFACEP (lface)); |
2714 | check_lface (lface); | |
2715 | return lface; | |
2716 | } | |
2717 | ||
2718 | ||
2719 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
2720 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 2721 | doc: /* Return non-nil if FACE names a face. |
b84ce3c5 | 2722 | FACE should be a symbol or string. |
1d256714 | 2723 | If optional second argument FRAME is non-nil, check for the |
228299fa | 2724 | existence of a frame-local face with name FACE on that frame. |
7ee72033 | 2725 | Otherwise check for the existence of a global face. */) |
5842a27b | 2726 | (Lisp_Object face, Lisp_Object frame) |
82641697 GM |
2727 | { |
2728 | Lisp_Object lface; | |
178c5d9c | 2729 | |
65fddb74 JB |
2730 | face = resolve_face_name (face, 1); |
2731 | ||
82641697 GM |
2732 | if (!NILP (frame)) |
2733 | { | |
b7826503 | 2734 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
2735 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
2736 | } | |
2737 | else | |
2738 | lface = lface_from_face_name (NULL, face, 0); | |
2739 | ||
2740 | return lface; | |
2741 | } | |
2742 | ||
2743 | ||
2744 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
2745 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 2746 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
2747 | If FRAME is t, copy the global face definition of FROM. |
2748 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
2749 | If NEW-FRAME is a frame, copy that data into the frame-local | |
d5ab09cd | 2750 | definition of TO on NEW-FRAME. If NEW-FRAME is nil, |
5e9bab6f | 2751 | FRAME controls where the data is copied to. |
228299fa | 2752 | |
5e9bab6f | 2753 | The value is TO. */) |
5842a27b | 2754 | (Lisp_Object from, Lisp_Object to, Lisp_Object frame, Lisp_Object new_frame) |
82641697 GM |
2755 | { |
2756 | Lisp_Object lface, copy; | |
178c5d9c | 2757 | |
b7826503 PJ |
2758 | CHECK_SYMBOL (from); |
2759 | CHECK_SYMBOL (to); | |
82641697 GM |
2760 | |
2761 | if (EQ (frame, Qt)) | |
2762 | { | |
2763 | /* Copy global definition of FROM. We don't make copies of | |
2764 | strings etc. because 20.2 didn't do it either. */ | |
2765 | lface = lface_from_face_name (NULL, from, 1); | |
2766 | copy = Finternal_make_lisp_face (to, Qnil); | |
2767 | } | |
2768 | else | |
2769 | { | |
2770 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
2771 | if (NILP (new_frame)) |
2772 | new_frame = frame; | |
b7826503 PJ |
2773 | CHECK_LIVE_FRAME (frame); |
2774 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
2775 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
2776 | copy = Finternal_make_lisp_face (to, new_frame); | |
2777 | } | |
178c5d9c | 2778 | |
72af86bd AS |
2779 | memcpy (XVECTOR (copy)->contents, XVECTOR (lface)->contents, |
2780 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 2781 | |
33565969 RS |
2782 | /* Changing a named face means that all realized faces depending on |
2783 | that face are invalid. Since we cannot tell which realized faces | |
2784 | depend on the face, make sure they are all removed. This is done | |
2785 | by incrementing face_change_count. The next call to | |
2786 | init_iterator will then free realized faces. */ | |
46b00436 KS |
2787 | if (NILP (Fget (to, Qface_no_inherit))) |
2788 | { | |
2789 | ++face_change_count; | |
2790 | ++windows_or_buffers_changed; | |
2791 | } | |
33565969 | 2792 | |
82641697 GM |
2793 | return to; |
2794 | } | |
2795 | ||
2796 | ||
2797 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
2798 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 2799 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
2800 | FRAME being a frame means change the face on that frame. |
2801 | FRAME nil means change the face of the selected frame. | |
2802 | FRAME t means change the default for new frames. | |
2803 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 | 2804 | for new frames. */) |
5842a27b | 2805 | (Lisp_Object face, Lisp_Object attr, Lisp_Object value, Lisp_Object frame) |
82641697 GM |
2806 | { |
2807 | Lisp_Object lface; | |
2808 | Lisp_Object old_value = Qnil; | |
2dee4c0b KH |
2809 | /* Set one of enum font_property_index (> 0) if ATTR is one of |
2810 | font-related attributes other than QCfont and QCfontset. */ | |
2811 | enum font_property_index prop_index = 0; | |
178c5d9c | 2812 | |
b7826503 PJ |
2813 | CHECK_SYMBOL (face); |
2814 | CHECK_SYMBOL (attr); | |
82641697 | 2815 | |
d1bf13b3 | 2816 | face = resolve_face_name (face, 1); |
c7ae3284 | 2817 | |
628436fb GM |
2818 | /* If FRAME is 0, change face on all frames, and change the |
2819 | default for new frames. */ | |
2820 | if (INTEGERP (frame) && XINT (frame) == 0) | |
2821 | { | |
2822 | Lisp_Object tail; | |
d12d0a9b | 2823 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
2824 | FOR_EACH_FRAME (tail, frame) |
2825 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 2826 | return face; |
628436fb GM |
2827 | } |
2828 | ||
82641697 GM |
2829 | /* Set lface to the Lisp attribute vector of FACE. */ |
2830 | if (EQ (frame, Qt)) | |
0268cef3 CY |
2831 | { |
2832 | lface = lface_from_face_name (NULL, face, 1); | |
67d23e01 CY |
2833 | |
2834 | /* When updating face-new-frame-defaults, we put :ignore-defface | |
2835 | where the caller wants `unspecified'. This forces the frame | |
2836 | defaults to ignore the defface value. Otherwise, the defface | |
2837 | will take effect, which is generally not what is intended. | |
2838 | The value of that attribute will be inherited from some other | |
2839 | face during face merging. See internal_merge_in_global_face. */ | |
0268cef3 | 2840 | if (UNSPECIFIEDP (value)) |
67d23e01 | 2841 | value = Qignore_defface; |
0268cef3 | 2842 | } |
82641697 GM |
2843 | else |
2844 | { | |
2845 | if (NILP (frame)) | |
c0617987 | 2846 | frame = selected_frame; |
178c5d9c | 2847 | |
b7826503 | 2848 | CHECK_LIVE_FRAME (frame); |
82641697 | 2849 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 2850 | |
82641697 GM |
2851 | /* If a frame-local face doesn't exist yet, create one. */ |
2852 | if (NILP (lface)) | |
2853 | lface = Finternal_make_lisp_face (face, frame); | |
2854 | } | |
2855 | ||
2856 | if (EQ (attr, QCfamily)) | |
2857 | { | |
2ff10663 | 2858 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 2859 | { |
b7826503 | 2860 | CHECK_STRING (value); |
d5db4077 | 2861 | if (SCHARS (value) == 0) |
82641697 GM |
2862 | signal_error ("Invalid face family", value); |
2863 | } | |
2864 | old_value = LFACE_FAMILY (lface); | |
2865 | LFACE_FAMILY (lface) = value; | |
2dee4c0b | 2866 | prop_index = FONT_FAMILY_INDEX; |
82641697 | 2867 | } |
53aaf1e2 KH |
2868 | else if (EQ (attr, QCfoundry)) |
2869 | { | |
2870 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) | |
2871 | { | |
2872 | CHECK_STRING (value); | |
2873 | if (SCHARS (value) == 0) | |
2874 | signal_error ("Invalid face foundry", value); | |
2875 | } | |
2876 | old_value = LFACE_FOUNDRY (lface); | |
2877 | LFACE_FOUNDRY (lface) = value; | |
2878 | prop_index = FONT_FOUNDRY_INDEX; | |
2879 | } | |
82641697 GM |
2880 | else if (EQ (attr, QCheight)) |
2881 | { | |
2ff10663 | 2882 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 2883 | { |
e66d5363 CY |
2884 | if (EQ (face, Qdefault)) |
2885 | { | |
2886 | /* The default face must have an absolute size. */ | |
2887 | if (!INTEGERP (value) || XINT (value) <= 0) | |
95838641 | 2888 | signal_error ("Default face height not absolute and positive", value); |
e66d5363 CY |
2889 | } |
2890 | else | |
2891 | { | |
2892 | /* For non-default faces, do a test merge with a random | |
2893 | height to see if VALUE's ok. */ | |
2894 | Lisp_Object test = merge_face_heights (value, | |
2895 | make_number (10), | |
2896 | Qnil); | |
2897 | if (!INTEGERP (test) || XINT (test) <= 0) | |
95838641 | 2898 | signal_error ("Face height does not produce a positive integer", value); |
e66d5363 | 2899 | } |
82641697 | 2900 | } |
2c20458f | 2901 | |
82641697 GM |
2902 | old_value = LFACE_HEIGHT (lface); |
2903 | LFACE_HEIGHT (lface) = value; | |
2dee4c0b | 2904 | prop_index = FONT_SIZE_INDEX; |
82641697 GM |
2905 | } |
2906 | else if (EQ (attr, QCweight)) | |
2907 | { | |
2ff10663 | 2908 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 2909 | { |
b7826503 | 2910 | CHECK_SYMBOL (value); |
2dee4c0b | 2911 | if (FONT_WEIGHT_NAME_NUMERIC (value) < 0) |
82641697 GM |
2912 | signal_error ("Invalid face weight", value); |
2913 | } | |
2914 | old_value = LFACE_WEIGHT (lface); | |
2915 | LFACE_WEIGHT (lface) = value; | |
2dee4c0b | 2916 | prop_index = FONT_WEIGHT_INDEX; |
82641697 GM |
2917 | } |
2918 | else if (EQ (attr, QCslant)) | |
2919 | { | |
2ff10663 | 2920 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 2921 | { |
b7826503 | 2922 | CHECK_SYMBOL (value); |
2dee4c0b | 2923 | if (FONT_SLANT_NAME_NUMERIC (value) < 0) |
82641697 GM |
2924 | signal_error ("Invalid face slant", value); |
2925 | } | |
2926 | old_value = LFACE_SLANT (lface); | |
2927 | LFACE_SLANT (lface) = value; | |
2dee4c0b | 2928 | prop_index = FONT_SLANT_INDEX; |
82641697 GM |
2929 | } |
2930 | else if (EQ (attr, QCunderline)) | |
2931 | { | |
2ff10663 | 2932 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
2933 | if ((SYMBOLP (value) |
2934 | && !EQ (value, Qt) | |
2935 | && !EQ (value, Qnil)) | |
2936 | /* Underline color. */ | |
2937 | || (STRINGP (value) | |
d5db4077 | 2938 | && SCHARS (value) == 0)) |
82641697 | 2939 | signal_error ("Invalid face underline", value); |
178c5d9c | 2940 | |
82641697 GM |
2941 | old_value = LFACE_UNDERLINE (lface); |
2942 | LFACE_UNDERLINE (lface) = value; | |
2943 | } | |
2944 | else if (EQ (attr, QCoverline)) | |
2945 | { | |
2ff10663 | 2946 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
2947 | if ((SYMBOLP (value) |
2948 | && !EQ (value, Qt) | |
2949 | && !EQ (value, Qnil)) | |
2950 | /* Overline color. */ | |
2951 | || (STRINGP (value) | |
d5db4077 | 2952 | && SCHARS (value) == 0)) |
82641697 | 2953 | signal_error ("Invalid face overline", value); |
178c5d9c | 2954 | |
82641697 GM |
2955 | old_value = LFACE_OVERLINE (lface); |
2956 | LFACE_OVERLINE (lface) = value; | |
2957 | } | |
2958 | else if (EQ (attr, QCstrike_through)) | |
2959 | { | |
2ff10663 | 2960 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
2961 | if ((SYMBOLP (value) |
2962 | && !EQ (value, Qt) | |
2963 | && !EQ (value, Qnil)) | |
2964 | /* Strike-through color. */ | |
2965 | || (STRINGP (value) | |
d5db4077 | 2966 | && SCHARS (value) == 0)) |
82641697 | 2967 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 2968 | |
82641697 GM |
2969 | old_value = LFACE_STRIKE_THROUGH (lface); |
2970 | LFACE_STRIKE_THROUGH (lface) = value; | |
2971 | } | |
2972 | else if (EQ (attr, QCbox)) | |
2973 | { | |
2974 | int valid_p; | |
178c5d9c | 2975 | |
82641697 GM |
2976 | /* Allow t meaning a simple box of width 1 in foreground color |
2977 | of the face. */ | |
2978 | if (EQ (value, Qt)) | |
2979 | value = make_number (1); | |
2980 | ||
2ff10663 | 2981 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
82641697 GM |
2982 | valid_p = 1; |
2983 | else if (NILP (value)) | |
2984 | valid_p = 1; | |
2985 | else if (INTEGERP (value)) | |
89624b8b | 2986 | valid_p = XINT (value) != 0; |
82641697 | 2987 | else if (STRINGP (value)) |
d5db4077 | 2988 | valid_p = SCHARS (value) > 0; |
82641697 GM |
2989 | else if (CONSP (value)) |
2990 | { | |
2991 | Lisp_Object tem; | |
178c5d9c | 2992 | |
82641697 GM |
2993 | tem = value; |
2994 | while (CONSP (tem)) | |
2995 | { | |
2996 | Lisp_Object k, v; | |
2997 | ||
2998 | k = XCAR (tem); | |
2999 | tem = XCDR (tem); | |
3000 | if (!CONSP (tem)) | |
3001 | break; | |
3002 | v = XCAR (tem); | |
3003 | tem = XCDR (tem); | |
178c5d9c | 3004 | |
82641697 GM |
3005 | if (EQ (k, QCline_width)) |
3006 | { | |
89624b8b | 3007 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
3008 | break; |
3009 | } | |
3010 | else if (EQ (k, QCcolor)) | |
3011 | { | |
91c212f1 | 3012 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
3013 | break; |
3014 | } | |
3015 | else if (EQ (k, QCstyle)) | |
3016 | { | |
3017 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3018 | break; | |
3019 | } | |
3020 | else | |
3021 | break; | |
3022 | } | |
3023 | ||
3024 | valid_p = NILP (tem); | |
3025 | } | |
3026 | else | |
3027 | valid_p = 0; | |
3028 | ||
3029 | if (!valid_p) | |
3030 | signal_error ("Invalid face box", value); | |
178c5d9c | 3031 | |
82641697 GM |
3032 | old_value = LFACE_BOX (lface); |
3033 | LFACE_BOX (lface) = value; | |
3034 | } | |
3035 | else if (EQ (attr, QCinverse_video) | |
3036 | || EQ (attr, QCreverse_video)) | |
3037 | { | |
2ff10663 | 3038 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 3039 | { |
b7826503 | 3040 | CHECK_SYMBOL (value); |
82641697 GM |
3041 | if (!EQ (value, Qt) && !NILP (value)) |
3042 | signal_error ("Invalid inverse-video face attribute value", value); | |
3043 | } | |
3044 | old_value = LFACE_INVERSE (lface); | |
3045 | LFACE_INVERSE (lface) = value; | |
3046 | } | |
3047 | else if (EQ (attr, QCforeground)) | |
3048 | { | |
ca6888b6 CY |
3049 | /* Compatibility with 20.x. */ |
3050 | if (NILP (value)) | |
3051 | value = Qunspecified; | |
2ff10663 | 3052 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
3053 | { |
3054 | /* Don't check for valid color names here because it depends | |
3055 | on the frame (display) whether the color will be valid | |
3056 | when the face is realized. */ | |
b7826503 | 3057 | CHECK_STRING (value); |
d5db4077 | 3058 | if (SCHARS (value) == 0) |
82641697 GM |
3059 | signal_error ("Empty foreground color value", value); |
3060 | } | |
3061 | old_value = LFACE_FOREGROUND (lface); | |
3062 | LFACE_FOREGROUND (lface) = value; | |
3063 | } | |
3064 | else if (EQ (attr, QCbackground)) | |
3065 | { | |
ca6888b6 CY |
3066 | /* Compatibility with 20.x. */ |
3067 | if (NILP (value)) | |
3068 | value = Qunspecified; | |
2ff10663 | 3069 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
3070 | { |
3071 | /* Don't check for valid color names here because it depends | |
3072 | on the frame (display) whether the color will be valid | |
3073 | when the face is realized. */ | |
b7826503 | 3074 | CHECK_STRING (value); |
d5db4077 | 3075 | if (SCHARS (value) == 0) |
82641697 GM |
3076 | signal_error ("Empty background color value", value); |
3077 | } | |
3078 | old_value = LFACE_BACKGROUND (lface); | |
3079 | LFACE_BACKGROUND (lface) = value; | |
3080 | } | |
3081 | else if (EQ (attr, QCstipple)) | |
3082 | { | |
edfda783 | 3083 | #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS) |
2ff10663 | 3084 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 3085 | && !NILP (value) |
fef04523 | 3086 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3087 | signal_error ("Invalid stipple attribute", value); |
3088 | old_value = LFACE_STIPPLE (lface); | |
3089 | LFACE_STIPPLE (lface) = value; | |
edfda783 | 3090 | #endif /* HAVE_X_WINDOWS || HAVE_NS */ |
82641697 GM |
3091 | } |
3092 | else if (EQ (attr, QCwidth)) | |
3093 | { | |
2ff10663 | 3094 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 3095 | { |
b7826503 | 3096 | CHECK_SYMBOL (value); |
2dee4c0b | 3097 | if (FONT_WIDTH_NAME_NUMERIC (value) < 0) |
82641697 GM |
3098 | signal_error ("Invalid face width", value); |
3099 | } | |
3100 | old_value = LFACE_SWIDTH (lface); | |
3101 | LFACE_SWIDTH (lface) = value; | |
2dee4c0b | 3102 | prop_index = FONT_WIDTH_INDEX; |
82641697 | 3103 | } |
2dee4c0b | 3104 | else if (EQ (attr, QCfont)) |
82641697 | 3105 | { |
c3cee013 | 3106 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 3107 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 | 3108 | { |
2dee4c0b | 3109 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
f4d3bea3 | 3110 | { |
2dee4c0b KH |
3111 | FRAME_PTR f; |
3112 | ||
3113 | old_value = LFACE_FONT (lface); | |
3114 | if (! FONTP (value)) | |
f4d3bea3 | 3115 | { |
2dee4c0b KH |
3116 | if (STRINGP (value)) |
3117 | { | |
21bdb81a CY |
3118 | Lisp_Object name = value; |
3119 | int fontset = fs_query_fontset (name, 0); | |
2dee4c0b KH |
3120 | |
3121 | if (fontset >= 0) | |
21bdb81a CY |
3122 | name = fontset_ascii (fontset); |
3123 | value = font_spec_from_name (name); | |
3124 | if (!FONTP (value)) | |
3125 | signal_error ("Invalid font name", name); | |
2dee4c0b KH |
3126 | } |
3127 | else | |
3128 | signal_error ("Invalid font or font-spec", value); | |
f4d3bea3 | 3129 | } |
2dee4c0b KH |
3130 | if (EQ (frame, Qt)) |
3131 | f = XFRAME (selected_frame); | |
f4d3bea3 | 3132 | else |
2dee4c0b KH |
3133 | f = XFRAME (frame); |
3134 | if (! FONT_OBJECT_P (value)) | |
f4d3bea3 | 3135 | { |
2dee4c0b | 3136 | Lisp_Object *attrs = XVECTOR (lface)->contents; |
f4d3bea3 KH |
3137 | Lisp_Object font_object; |
3138 | ||
2dee4c0b | 3139 | font_object = font_load_for_lface (f, attrs, value); |
db1c10a2 | 3140 | if (NILP (font_object)) |
2dee4c0b KH |
3141 | signal_error ("Font not available", value); |
3142 | value = font_object; | |
f4d3bea3 | 3143 | } |
2dee4c0b | 3144 | set_lface_from_font (f, lface, value, 1); |
f4d3bea3 KH |
3145 | } |
3146 | else | |
2dee4c0b KH |
3147 | LFACE_FONT (lface) = value; |
3148 | } | |
3149 | #endif /* HAVE_WINDOW_SYSTEM */ | |
3150 | } | |
3151 | else if (EQ (attr, QCfontset)) | |
3152 | { | |
3153 | #ifdef HAVE_WINDOW_SYSTEM | |
3154 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) | |
3155 | { | |
3156 | Lisp_Object tmp; | |
39506348 | 3157 | |
2dee4c0b KH |
3158 | old_value = LFACE_FONTSET (lface); |
3159 | tmp = Fquery_fontset (value, Qnil); | |
3160 | if (NILP (tmp)) | |
3161 | signal_error ("Invalid fontset name", value); | |
3162 | LFACE_FONTSET (lface) = value = tmp; | |
96fbd2c6 | 3163 | } |
c3cee013 | 3164 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 3165 | } |
2c20458f MB |
3166 | else if (EQ (attr, QCinherit)) |
3167 | { | |
3168 | Lisp_Object tail; | |
3169 | if (SYMBOLP (value)) | |
3170 | tail = Qnil; | |
3171 | else | |
3172 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3173 | if (!SYMBOLP (XCAR (tail))) | |
3174 | break; | |
3175 | if (NILP (tail)) | |
3176 | LFACE_INHERIT (lface) = value; | |
3177 | else | |
6288c62f | 3178 | signal_error ("Invalid face inheritance", value); |
2c20458f | 3179 | } |
82641697 GM |
3180 | else if (EQ (attr, QCbold)) |
3181 | { | |
3182 | old_value = LFACE_WEIGHT (lface); | |
3183 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
2dee4c0b | 3184 | prop_index = FONT_WEIGHT_INDEX; |
82641697 GM |
3185 | } |
3186 | else if (EQ (attr, QCitalic)) | |
3187 | { | |
2dee4c0b | 3188 | attr = QCslant; |
82641697 GM |
3189 | old_value = LFACE_SLANT (lface); |
3190 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
2dee4c0b | 3191 | prop_index = FONT_SLANT_INDEX; |
82641697 GM |
3192 | } |
3193 | else | |
3194 | signal_error ("Invalid face attribute name", attr); | |
3195 | ||
2dee4c0b | 3196 | if (prop_index) |
e69a00b7 CY |
3197 | { |
3198 | /* If a font-related attribute other than QCfont and QCfontset | |
3199 | is specified, and if the original QCfont attribute has a font | |
3200 | (font-spec or font-object), set the corresponding property in | |
3201 | the font to nil so that the font selector doesn't think that | |
3202 | the attribute is mandatory. Also, clear the average | |
3203 | width. */ | |
3204 | font_clear_prop (XVECTOR (lface)->contents, prop_index); | |
e69a00b7 | 3205 | } |
39506348 | 3206 | |
82641697 GM |
3207 | /* Changing a named face means that all realized faces depending on |
3208 | that face are invalid. Since we cannot tell which realized faces | |
3209 | depend on the face, make sure they are all removed. This is done | |
3210 | by incrementing face_change_count. The next call to | |
3211 | init_iterator will then free realized faces. */ | |
3212 | if (!EQ (frame, Qt) | |
46b00436 | 3213 | && NILP (Fget (face, Qface_no_inherit)) |
2dee4c0b | 3214 | && NILP (Fequal (old_value, value))) |
82641697 GM |
3215 | { |
3216 | ++face_change_count; | |
3217 | ++windows_or_buffers_changed; | |
3218 | } | |
3219 | ||
2ff10663 | 3220 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 3221 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3222 | { |
3223 | Lisp_Object param; | |
3224 | ||
3225 | param = Qnil; | |
178c5d9c | 3226 | |
8bd201d6 GM |
3227 | if (EQ (face, Qdefault)) |
3228 | { | |
b9c769f8 | 3229 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
3230 | /* Changed font-related attributes of the `default' face are |
3231 | reflected in changed `font' frame parameters. */ | |
ceeda019 | 3232 | if (FRAMEP (frame) |
2dee4c0b | 3233 | && (prop_index || EQ (attr, QCfont)) |
8bd201d6 GM |
3234 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
3235 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
3236 | else |
3237 | #endif /* HAVE_WINDOW_SYSTEM */ | |
3238 | ||
3239 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
3240 | param = Qforeground_color; |
3241 | else if (EQ (attr, QCbackground)) | |
3242 | param = Qbackground_color; | |
3243 | } | |
b9c769f8 | 3244 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 3245 | #ifndef WINDOWSNT |
8bd201d6 GM |
3246 | else if (EQ (face, Qscroll_bar)) |
3247 | { | |
3248 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3249 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3250 | if (EQ (attr, QCforeground)) | |
3251 | param = Qscroll_bar_foreground; | |
3252 | else if (EQ (attr, QCbackground)) | |
3253 | param = Qscroll_bar_background; | |
3254 | } | |
d12d0a9b | 3255 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
3256 | else if (EQ (face, Qborder)) |
3257 | { | |
3258 | /* Changing background color of `border' sets frame parameter | |
3259 | `border-color'. */ | |
3260 | if (EQ (attr, QCbackground)) | |
3261 | param = Qborder_color; | |
3262 | } | |
3263 | else if (EQ (face, Qcursor)) | |
3264 | { | |
3265 | /* Changing background color of `cursor' sets frame parameter | |
3266 | `cursor-color'. */ | |
3267 | if (EQ (attr, QCbackground)) | |
3268 | param = Qcursor_color; | |
3269 | } | |
3270 | else if (EQ (face, Qmouse)) | |
3271 | { | |
3272 | /* Changing background color of `mouse' sets frame parameter | |
3273 | `mouse-color'. */ | |
3274 | if (EQ (attr, QCbackground)) | |
3275 | param = Qmouse_color; | |
3276 | } | |
b9c769f8 | 3277 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 3278 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
3279 | { |
3280 | /* Indicate that we have to update the menu bar when | |
3281 | realizing faces on FRAME. FRAME t change the | |
3282 | default for new frames. We do this by setting | |
3283 | setting the flag in new face caches */ | |
3284 | if (FRAMEP (frame)) | |
3285 | { | |
3286 | struct frame *f = XFRAME (frame); | |
3287 | if (FRAME_FACE_CACHE (f) == NULL) | |
3288 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
3289 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
3290 | } | |
3291 | else | |
3292 | menu_face_changed_default = 1; | |
3293 | } | |
8bd201d6 | 3294 | |
39506348 | 3295 | if (!NILP (param)) |
ab8469eb PJ |
3296 | { |
3297 | if (EQ (frame, Qt)) | |
3298 | /* Update `default-frame-alist', which is used for new frames. */ | |
3299 | { | |
3300 | store_in_alist (&Vdefault_frame_alist, param, value); | |
3301 | } | |
3302 | else | |
3303 | /* Update the current frame's parameters. */ | |
3304 | { | |
3305 | Lisp_Object cons; | |
3306 | cons = XCAR (Vparam_value_alist); | |
3307 | XSETCAR (cons, param); | |
3308 | XSETCDR (cons, value); | |
3309 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
3310 | } | |
3311 | } | |
8bd201d6 | 3312 | } |
82641697 | 3313 | |
82641697 GM |
3314 | return face; |
3315 | } | |
3316 | ||
3317 | ||
8bd201d6 GM |
3318 | /* Update the corresponding face when frame parameter PARAM on frame F |
3319 | has been assigned the value NEW_VALUE. */ | |
3320 | ||
3321 | void | |
971de7fb | 3322 | update_face_from_frame_parameter (struct frame *f, Lisp_Object param, Lisp_Object new_value) |
8bd201d6 | 3323 | { |
46b00436 | 3324 | Lisp_Object face = Qnil; |
8bd201d6 GM |
3325 | Lisp_Object lface; |
3326 | ||
3327 | /* If there are no faces yet, give up. This is the case when called | |
3328 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 3329 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
3330 | if (NILP (f->face_alist)) |
3331 | return; | |
178c5d9c | 3332 | |
8bd201d6 GM |
3333 | if (EQ (param, Qforeground_color)) |
3334 | { | |
46b00436 KS |
3335 | face = Qdefault; |
3336 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
3337 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
3338 | ? new_value : Qunspecified); | |
3339 | realize_basic_faces (f); | |
3340 | } | |
3341 | else if (EQ (param, Qbackground_color)) | |
3342 | { | |
92610620 GM |
3343 | Lisp_Object frame; |
3344 | ||
3345 | /* Changing the background color might change the background | |
c20577bc | 3346 | mode, so that we have to load new defface specs. |
f2cec7a9 | 3347 | Call frame-update-face-colors to do that. */ |
92610620 | 3348 | XSETFRAME (frame, f); |
c20577bc | 3349 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 3350 | |
46b00436 KS |
3351 | face = Qdefault; |
3352 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
3353 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
3354 | ? new_value : Qunspecified); | |
3355 | realize_basic_faces (f); | |
3356 | } | |
76ea4cc9 | 3357 | #ifdef HAVE_WINDOW_SYSTEM |
46b00436 | 3358 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 3359 | { |
46b00436 KS |
3360 | face = Qborder; |
3361 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
3362 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
3363 | ? new_value : Qunspecified); | |
3364 | } | |
3365 | else if (EQ (param, Qcursor_color)) | |
3366 | { | |
46b00436 KS |
3367 | face = Qcursor; |
3368 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
3369 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
3370 | ? new_value : Qunspecified); | |
3371 | } | |
3372 | else if (EQ (param, Qmouse_color)) | |
3373 | { | |
46b00436 KS |
3374 | face = Qmouse; |
3375 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
3376 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
3377 | ? new_value : Qunspecified); | |
3378 | } | |
76ea4cc9 | 3379 | #endif |
46b00436 KS |
3380 | |
3381 | /* Changing a named face means that all realized faces depending on | |
3382 | that face are invalid. Since we cannot tell which realized faces | |
3383 | depend on the face, make sure they are all removed. This is done | |
3384 | by incrementing face_change_count. The next call to | |
3385 | init_iterator will then free realized faces. */ | |
3386 | if (!NILP (face) | |
3387 | && NILP (Fget (face, Qface_no_inherit))) | |
3388 | { | |
3389 | ++face_change_count; | |
3390 | ++windows_or_buffers_changed; | |
3391 | } | |
8bd201d6 GM |
3392 | } |
3393 | ||
3394 | ||
76ea4cc9 EZ |
3395 | #ifdef HAVE_WINDOW_SYSTEM |
3396 | ||
3397 | /* Set the `font' frame parameter of FRAME determined from the | |
3398 | font-object set in `default' face attributes LFACE. */ | |
3399 | ||
3400 | static void | |
971de7fb | 3401 | set_font_frame_param (Lisp_Object frame, Lisp_Object lface) |
76ea4cc9 EZ |
3402 | { |
3403 | struct frame *f = XFRAME (frame); | |
3404 | Lisp_Object font; | |
3405 | ||
3406 | if (FRAME_WINDOW_P (f) | |
3407 | /* Don't do anything if the font is `unspecified'. This can | |
3408 | happen during frame creation. */ | |
3409 | && (font = LFACE_FONT (lface), | |
3410 | ! UNSPECIFIEDP (font))) | |
3411 | { | |
3412 | if (FONT_SPEC_P (font)) | |
3413 | { | |
3414 | font = font_load_for_lface (f, XVECTOR (lface)->contents, font); | |
3415 | if (NILP (font)) | |
3416 | return; | |
3417 | LFACE_FONT (lface) = font; | |
3418 | } | |
3419 | f->default_face_done_p = 0; | |
3420 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font), Qnil)); | |
3421 | } | |
3422 | } | |
3423 | ||
3424 | ||
82641697 GM |
3425 | /* Get the value of X resource RESOURCE, class CLASS for the display |
3426 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3427 | doesn't take a frame argument. */ | |
3428 | ||
3429 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 | 3430 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
5842a27b | 3431 | (Lisp_Object resource, Lisp_Object class, Lisp_Object frame) |
82641697 | 3432 | { |
c3cee013 | 3433 | Lisp_Object value = Qnil; |
b7826503 PJ |
3434 | CHECK_STRING (resource); |
3435 | CHECK_STRING (class); | |
3436 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
3437 | BLOCK_INPUT; |
3438 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3439 | resource, class, Qnil, Qnil); | |
3440 | UNBLOCK_INPUT; | |
3441 | return value; | |
3442 | } | |
3443 | ||
3444 | ||
3445 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3446 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3447 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3448 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 3449 | |
82641697 | 3450 | static Lisp_Object |
971de7fb | 3451 | face_boolean_x_resource_value (Lisp_Object value, int signal_p) |
82641697 GM |
3452 | { |
3453 | Lisp_Object result = make_number (0); | |
3454 | ||
3455 | xassert (STRINGP (value)); | |
178c5d9c | 3456 | |
25a48bd0 PE |
3457 | if (xstrcasecmp (SSDATA (value), "on") == 0 |
3458 | || xstrcasecmp (SSDATA (value), "true") == 0) | |
82641697 | 3459 | result = Qt; |
25a48bd0 PE |
3460 | else if (xstrcasecmp (SSDATA (value), "off") == 0 |
3461 | || xstrcasecmp (SSDATA (value), "false") == 0) | |
82641697 | 3462 | result = Qnil; |
25a48bd0 | 3463 | else if (xstrcasecmp (SSDATA (value), "unspecified") == 0) |
82641697 GM |
3464 | result = Qunspecified; |
3465 | else if (signal_p) | |
3466 | signal_error ("Invalid face attribute value from X resource", value); | |
3467 | ||
3468 | return result; | |
3469 | } | |
3470 | ||
3471 | ||
3472 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3473 | Finternal_set_lisp_face_attribute_from_resource, | |
3474 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 | 3475 | 3, 4, 0, doc: /* */) |
5842a27b | 3476 | (Lisp_Object face, Lisp_Object attr, Lisp_Object value, Lisp_Object frame) |
82641697 | 3477 | { |
b7826503 PJ |
3478 | CHECK_SYMBOL (face); |
3479 | CHECK_SYMBOL (attr); | |
3480 | CHECK_STRING (value); | |
82641697 | 3481 | |
25a48bd0 | 3482 | if (xstrcasecmp (SSDATA (value), "unspecified") == 0) |
82641697 GM |
3483 | value = Qunspecified; |
3484 | else if (EQ (attr, QCheight)) | |
3485 | { | |
3486 | value = Fstring_to_number (value, make_number (10)); | |
3487 | if (XINT (value) <= 0) | |
3488 | signal_error ("Invalid face height from X resource", value); | |
3489 | } | |
3490 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3491 | value = face_boolean_x_resource_value (value, 1); | |
3492 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
42a5b22f | 3493 | value = intern (SSDATA (value)); |
82641697 GM |
3494 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
3495 | value = face_boolean_x_resource_value (value, 1); | |
3496 | else if (EQ (attr, QCunderline) | |
3497 | || EQ (attr, QCoverline) | |
27188d11 | 3498 | || EQ (attr, QCstrike_through)) |
82641697 GM |
3499 | { |
3500 | Lisp_Object boolean_value; | |
3501 | ||
3502 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3503 | VALUE does NOT specify a color. */ | |
3504 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3505 | if (SYMBOLP (boolean_value)) | |
3506 | value = boolean_value; | |
3507 | } | |
0ad040ff | 3508 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
27188d11 | 3509 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
82641697 GM |
3510 | |
3511 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3512 | } | |
3513 | ||
c3cee013 | 3514 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 3515 | |
c7ae3284 GM |
3516 | \f |
3517 | /*********************************************************************** | |
3518 | Menu face | |
3519 | ***********************************************************************/ | |
3520 | ||
bce72079 | 3521 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 3522 | |
bce72079 GM |
3523 | /* Make menus on frame F appear as specified by the `menu' face. */ |
3524 | ||
3525 | static void | |
ebd15611 | 3526 | x_update_menu_appearance (struct frame *f) |
c7ae3284 | 3527 | { |
a03ad468 | 3528 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 3529 | XrmDatabase rdb; |
178c5d9c | 3530 | |
bce72079 GM |
3531 | if (dpyinfo |
3532 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
3533 | rdb != NULL)) | |
c7ae3284 | 3534 | { |
bce72079 GM |
3535 | char line[512]; |
3536 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
3537 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
42a5b22f | 3538 | const char *myname = SSDATA (Vx_resource_name); |
bce72079 | 3539 | int changed_p = 0; |
8ad582ac GM |
3540 | #ifdef USE_MOTIF |
3541 | const char *popup_path = "popup_menu"; | |
3542 | #else | |
3543 | const char *popup_path = "menu.popup"; | |
3544 | #endif | |
177c0ea7 | 3545 | |
bce72079 GM |
3546 | if (STRINGP (LFACE_FOREGROUND (lface))) |
3547 | { | |
8ad582ac GM |
3548 | sprintf (line, "%s.%s*foreground: %s", |
3549 | myname, popup_path, | |
d5db4077 | 3550 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
3551 | XrmPutLineResource (&rdb, line); |
3552 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 3553 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
3554 | XrmPutLineResource (&rdb, line); |
3555 | changed_p = 1; | |
3556 | } | |
178c5d9c | 3557 | |
bce72079 GM |
3558 | if (STRINGP (LFACE_BACKGROUND (lface))) |
3559 | { | |
8ad582ac GM |
3560 | sprintf (line, "%s.%s*background: %s", |
3561 | myname, popup_path, | |
d5db4077 | 3562 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
3563 | XrmPutLineResource (&rdb, line); |
3564 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 3565 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
3566 | XrmPutLineResource (&rdb, line); |
3567 | changed_p = 1; | |
3568 | } | |
177c0ea7 | 3569 | |
2dee4c0b | 3570 | if (face->font |
23888717 CY |
3571 | /* On Solaris 5.8, it's been reported that the `menu' face |
3572 | can be unspecified here, during startup. Why this | |
3573 | happens remains unknown. -- cyd */ | |
3574 | && FONTP (LFACE_FONT (lface)) | |
bce72079 | 3575 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) |
53aaf1e2 | 3576 | || !UNSPECIFIEDP (LFACE_FOUNDRY (lface)) |
bce72079 | 3577 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) |
bce72079 GM |
3578 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) |
3579 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
3580 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
3581 | { | |
47ae3723 | 3582 | Lisp_Object xlfd = Ffont_xlfd_name (LFACE_FONT (lface), Qnil); |
a03ad468 | 3583 | #ifdef USE_MOTIF |
bce72079 | 3584 | const char *suffix = "List"; |
211f2210 | 3585 | Bool motif = True; |
a2d7e722 JD |
3586 | #else |
3587 | #if defined HAVE_X_I18N | |
3588 | ||
3589 | const char *suffix = "Set"; | |
a03ad468 | 3590 | #else |
bce72079 | 3591 | const char *suffix = ""; |
a2d7e722 | 3592 | #endif |
211f2210 | 3593 | Bool motif = False; |
2defe37f | 3594 | #endif |
2dee4c0b KH |
3595 | |
3596 | if (! NILP (xlfd)) | |
3597 | { | |
211f2210 | 3598 | #if defined HAVE_X_I18N |
42a5b22f | 3599 | char *fontsetname = xic_create_fontsetname (SSDATA (xlfd), motif); |
2defe37f | 3600 | #else |
51b59d79 | 3601 | char *fontsetname = SSDATA (xlfd); |
bce72079 | 3602 | #endif |
2dee4c0b KH |
3603 | sprintf (line, "%s.pane.menubar*font%s: %s", |
3604 | myname, suffix, fontsetname); | |
3605 | XrmPutLineResource (&rdb, line); | |
3606 | sprintf (line, "%s.%s*font%s: %s", | |
3607 | myname, popup_path, suffix, fontsetname); | |
3608 | XrmPutLineResource (&rdb, line); | |
3609 | changed_p = 1; | |
51b59d79 | 3610 | if (fontsetname != SSDATA (xlfd)) |
2dee4c0b KH |
3611 | xfree (fontsetname); |
3612 | } | |
bce72079 | 3613 | } |
c7ae3284 | 3614 | |
bce72079 | 3615 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 3616 | free_frame_menubar (f); |
c7ae3284 GM |
3617 | } |
3618 | } | |
3619 | ||
bce72079 | 3620 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
3621 | |
3622 | ||
177c0ea7 | 3623 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
3624 | Sface_attribute_relative_p, |
3625 | 2, 2, 0, | |
2d6228e7 RS |
3626 | doc: /* Check whether a face attribute value is relative. |
3627 | Specifically, this function returns t if the attribute ATTRIBUTE | |
3628 | with the value VALUE is relative. | |
3629 | ||
3630 | A relative value is one that doesn't entirely override whatever is | |
3631 | inherited from another face. For most possible attributes, | |
3632 | the only relative value that users see is `unspecified'. | |
3633 | However, for :height, floating point values are also relative. */) | |
5842a27b | 3634 | (Lisp_Object attribute, Lisp_Object value) |
cdfaafa9 | 3635 | { |
05338727 | 3636 | if (EQ (value, Qunspecified) || (EQ (value, Qignore_defface))) |
cdfaafa9 MB |
3637 | return Qt; |
3638 | else if (EQ (attribute, QCheight)) | |
3639 | return INTEGERP (value) ? Qnil : Qt; | |
3640 | else | |
3641 | return Qnil; | |
3642 | } | |
3643 | ||
3644 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
3645 | 3, 3, 0, | |
3646 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
3647 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
3648 | the result will be absolute, otherwise it will be relative. */) | |
5842a27b | 3649 | (Lisp_Object attribute, Lisp_Object value1, Lisp_Object value2) |
cdfaafa9 | 3650 | { |
05338727 | 3651 | if (EQ (value1, Qunspecified) || EQ (value1, Qignore_defface)) |
cdfaafa9 MB |
3652 | return value2; |
3653 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 3654 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
3655 | else |
3656 | return value1; | |
3657 | } | |
3658 | ||
82641697 GM |
3659 | |
3660 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
3661 | Sinternal_get_lisp_face_attribute, | |
3662 | 2, 3, 0, | |
7ee72033 | 3663 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
3664 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
3665 | face attribute name, signal an error. | |
7fc92635 JB |
3666 | If the optional argument FRAME is given, report on face SYMBOL in that |
3667 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 | 3668 | frames). If FRAME is omitted or nil, use the selected frame. */) |
5842a27b | 3669 | (Lisp_Object symbol, Lisp_Object keyword, Lisp_Object frame) |
82641697 GM |
3670 | { |
3671 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 3672 | |
b7826503 PJ |
3673 | CHECK_SYMBOL (symbol); |
3674 | CHECK_SYMBOL (keyword); | |
82641697 GM |
3675 | |
3676 | if (EQ (frame, Qt)) | |
3677 | lface = lface_from_face_name (NULL, symbol, 1); | |
3678 | else | |
3679 | { | |
3680 | if (NILP (frame)) | |
c0617987 | 3681 | frame = selected_frame; |
b7826503 | 3682 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3683 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
3684 | } | |
3685 | ||
3686 | if (EQ (keyword, QCfamily)) | |
3687 | value = LFACE_FAMILY (lface); | |
53aaf1e2 KH |
3688 | else if (EQ (keyword, QCfoundry)) |
3689 | value = LFACE_FOUNDRY (lface); | |
82641697 GM |
3690 | else if (EQ (keyword, QCheight)) |
3691 | value = LFACE_HEIGHT (lface); | |
3692 | else if (EQ (keyword, QCweight)) | |
3693 | value = LFACE_WEIGHT (lface); | |
3694 | else if (EQ (keyword, QCslant)) | |
3695 | value = LFACE_SLANT (lface); | |
3696 | else if (EQ (keyword, QCunderline)) | |
3697 | value = LFACE_UNDERLINE (lface); | |
3698 | else if (EQ (keyword, QCoverline)) | |
3699 | value = LFACE_OVERLINE (lface); | |
3700 | else if (EQ (keyword, QCstrike_through)) | |
3701 | value = LFACE_STRIKE_THROUGH (lface); | |
3702 | else if (EQ (keyword, QCbox)) | |
3703 | value = LFACE_BOX (lface); | |
3704 | else if (EQ (keyword, QCinverse_video) | |
3705 | || EQ (keyword, QCreverse_video)) | |
3706 | value = LFACE_INVERSE (lface); | |
3707 | else if (EQ (keyword, QCforeground)) | |
3708 | value = LFACE_FOREGROUND (lface); | |
3709 | else if (EQ (keyword, QCbackground)) | |
3710 | value = LFACE_BACKGROUND (lface); | |
3711 | else if (EQ (keyword, QCstipple)) | |
3712 | value = LFACE_STIPPLE (lface); | |
3713 | else if (EQ (keyword, QCwidth)) | |
3714 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
3715 | else if (EQ (keyword, QCinherit)) |
3716 | value = LFACE_INHERIT (lface); | |
39506348 KH |
3717 | else if (EQ (keyword, QCfont)) |
3718 | value = LFACE_FONT (lface); | |
763bc839 KH |
3719 | else if (EQ (keyword, QCfontset)) |
3720 | value = LFACE_FONTSET (lface); | |
82641697 GM |
3721 | else |
3722 | signal_error ("Invalid face attribute name", keyword); | |
3723 | ||
0268cef3 CY |
3724 | if (IGNORE_DEFFACE_P (value)) |
3725 | return Qunspecified; | |
3726 | ||
82641697 GM |
3727 | return value; |
3728 | } | |
3729 | ||
3730 | ||
3731 | DEFUN ("internal-lisp-face-attribute-values", | |
3732 | Finternal_lisp_face_attribute_values, | |
3733 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
3734 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
3735 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
5842a27b | 3736 | (Lisp_Object attr) |
82641697 GM |
3737 | { |
3738 | Lisp_Object result = Qnil; | |
178c5d9c | 3739 | |
b7826503 | 3740 | CHECK_SYMBOL (attr); |
178c5d9c | 3741 | |
2dee4c0b | 3742 | if (EQ (attr, QCunderline)) |
82641697 GM |
3743 | result = Fcons (Qt, Fcons (Qnil, Qnil)); |
3744 | else if (EQ (attr, QCoverline)) | |
3745 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3746 | else if (EQ (attr, QCstrike_through)) | |
3747 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3748 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
3749 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
3750 | ||
3751 | return result; | |
3752 | } | |
178c5d9c | 3753 | |
82641697 GM |
3754 | |
3755 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 3756 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 3757 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 | 3758 | Default face attributes override any local face attributes. */) |
5842a27b | 3759 | (Lisp_Object face, Lisp_Object frame) |
82641697 | 3760 | { |
aad40737 MB |
3761 | int i; |
3762 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
8d3810fd | 3763 | struct frame *f = XFRAME (frame); |
aad40737 | 3764 | |
b7826503 | 3765 | CHECK_LIVE_FRAME (frame); |
82641697 | 3766 | global_lface = lface_from_face_name (NULL, face, 1); |
8d3810fd | 3767 | local_lface = lface_from_face_name (f, face, 0); |
82641697 GM |
3768 | if (NILP (local_lface)) |
3769 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 3770 | |
cec33c90 SM |
3771 | /* Make every specified global attribute override the local one. |
3772 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
3773 | the local frame is defined from default specs in `face-defface-spec' | |
3774 | and those should be overridden by global settings. Hence the strange | |
3775 | "global before local" priority. */ | |
aad40737 MB |
3776 | lvec = XVECTOR (local_lface)->contents; |
3777 | gvec = XVECTOR (global_lface)->contents; | |
3778 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
8d3810fd CY |
3779 | if (IGNORE_DEFFACE_P (gvec[i])) |
3780 | lvec[i] = Qunspecified; | |
3781 | else if (! UNSPECIFIEDP (gvec[i])) | |
3782 | lvec[i] = gvec[i]; | |
3783 | ||
fa9fa316 | 3784 | /* If the default face was changed, update the face cache and the |
811029d3 | 3785 | `font' frame parameter. */ |
8d3810fd CY |
3786 | if (EQ (face, Qdefault)) |
3787 | { | |
3788 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
3789 | struct face *newface, *oldface = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3790 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
3791 | ||
0421a7a7 CY |
3792 | /* This can be NULL (e.g., in batch mode). */ |
3793 | if (oldface) | |
8d3810fd | 3794 | { |
fa9fa316 CY |
3795 | /* Ensure that the face vector is fully specified by merging |
3796 | the previously-cached vector. */ | |
72af86bd | 3797 | memcpy (attrs, oldface->lface, sizeof attrs); |
0421a7a7 | 3798 | merge_face_vectors (f, lvec, attrs, 0); |
72af86bd | 3799 | memcpy (lvec, attrs, sizeof attrs); |
fa9fa316 | 3800 | newface = realize_face (c, lvec, DEFAULT_FACE_ID); |
0421a7a7 CY |
3801 | |
3802 | if ((! UNSPECIFIEDP (gvec[LFACE_FAMILY_INDEX]) | |
3803 | || ! UNSPECIFIEDP (gvec[LFACE_FOUNDRY_INDEX]) | |
3804 | || ! UNSPECIFIEDP (gvec[LFACE_HEIGHT_INDEX]) | |
3805 | || ! UNSPECIFIEDP (gvec[LFACE_WEIGHT_INDEX]) | |
3806 | || ! UNSPECIFIEDP (gvec[LFACE_SLANT_INDEX]) | |
3807 | || ! UNSPECIFIEDP (gvec[LFACE_SWIDTH_INDEX]) | |
3808 | || ! UNSPECIFIEDP (gvec[LFACE_FONT_INDEX])) | |
3809 | && newface->font) | |
3810 | { | |
3811 | Lisp_Object name = newface->font->props[FONT_NAME_INDEX]; | |
3812 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, name), | |
3813 | Qnil)); | |
3814 | } | |
8d3810fd CY |
3815 | } |
3816 | } | |
334a2e2a GM |
3817 | |
3818 | return Qnil; | |
82641697 GM |
3819 | } |
3820 | ||
3821 | ||
3822 | /* The following function is implemented for compatibility with 20.2. | |
3823 | The function is used in x-resolve-fonts when it is asked to | |
3824 | return fonts with the same size as the font of a face. This is | |
3825 | done in fontset.el. */ | |
3826 | ||
2db4bfe5 | 3827 | DEFUN ("face-font", Fface_font, Sface_font, 1, 3, 0, |
e3cd9e7f | 3828 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
2db4bfe5 | 3829 | The font name is, by default, for ASCII characters. |
228299fa GM |
3830 | If the optional argument FRAME is given, report on face FACE in that frame. |
3831 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
3832 | The font default for a face is either nil, or a list | |
3833 | of the form (bold), (italic) or (bold italic). | |
2db4bfe5 KH |
3834 | If FRAME is omitted or nil, use the selected frame. And, in this case, |
3835 | if the optional third argument CHARACTER is given, | |
3836 | return the font name used for CHARACTER. */) | |
5842a27b | 3837 | (Lisp_Object face, Lisp_Object frame, Lisp_Object character) |
82641697 GM |
3838 | { |
3839 | if (EQ (frame, Qt)) | |
3840 | { | |
3841 | Lisp_Object result = Qnil; | |
3842 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
3843 | ||
3844 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
3845 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
3846 | result = Fcons (Qbold, result); | |
178c5d9c | 3847 | |
0f2c6573 | 3848 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
3849 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
3850 | result = Fcons (Qitalic, result); | |
178c5d9c | 3851 | |
82641697 GM |
3852 | return result; |
3853 | } | |
3854 | else | |
3855 | { | |
3856 | struct frame *f = frame_or_selected_frame (frame, 1); | |
000fc2b1 | 3857 | int face_id = lookup_named_face (f, face, 1); |
071048a3 | 3858 | struct face *fface = FACE_FROM_ID (f, face_id); |
2db4bfe5 | 3859 | |
071048a3 | 3860 | if (! fface) |
2db4bfe5 | 3861 | return Qnil; |
a1a552b3 | 3862 | #ifdef HAVE_WINDOW_SYSTEM |
75dad34a | 3863 | if (FRAME_WINDOW_P (f) && !NILP (character)) |
a1a552b3 KH |
3864 | { |
3865 | CHECK_CHARACTER (character); | |
071048a3 PE |
3866 | face_id = FACE_FOR_CHAR (f, fface, XINT (character), -1, Qnil); |
3867 | fface = FACE_FROM_ID (f, face_id); | |
a1a552b3 | 3868 | } |
071048a3 PE |
3869 | return (fface->font |
3870 | ? fface->font->props[FONT_NAME_INDEX] | |
2dee4c0b | 3871 | : Qnil); |
1ccdfd33 EZ |
3872 | #else /* !HAVE_WINDOW_SYSTEM */ |
3873 | return build_string (FRAME_MSDOS_P (f) | |
3874 | ? "ms-dos" | |
3875 | : FRAME_W32_P (f) ? "w32term" | |
3876 | :"tty"); | |
3877 | #endif | |
82641697 GM |
3878 | } |
3879 | } | |
3880 | ||
3881 | ||
9717e36c | 3882 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
3883 | all attributes are `equal'. Tries to be fast because this function |
3884 | is called quite often. */ | |
3885 | ||
55d4c1b2 | 3886 | static inline int |
971de7fb | 3887 | face_attr_equal_p (Lisp_Object v1, Lisp_Object v2) |
82641697 | 3888 | { |
9717e36c MB |
3889 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
3890 | and the other is specified. */ | |
3891 | if (XTYPE (v1) != XTYPE (v2)) | |
3892 | return 0; | |
82641697 | 3893 | |
9717e36c MB |
3894 | if (EQ (v1, v2)) |
3895 | return 1; | |
82641697 | 3896 | |
9717e36c MB |
3897 | switch (XTYPE (v1)) |
3898 | { | |
3899 | case Lisp_String: | |
3900 | if (SBYTES (v1) != SBYTES (v2)) | |
3901 | return 0; | |
82641697 | 3902 | |
72af86bd | 3903 | return memcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 3904 | |
2de9f71c | 3905 | case_Lisp_Int: |
9717e36c MB |
3906 | case Lisp_Symbol: |
3907 | return 0; | |
178c5d9c | 3908 | |
9717e36c MB |
3909 | default: |
3910 | return !NILP (Fequal (v1, v2)); | |
82641697 | 3911 | } |
9717e36c MB |
3912 | } |
3913 | ||
3914 | ||
3915 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
3916 | all attributes are `equal'. Tries to be fast because this function | |
3917 | is called quite often. */ | |
3918 | ||
55d4c1b2 | 3919 | static inline int |
971de7fb | 3920 | lface_equal_p (Lisp_Object *v1, Lisp_Object *v2) |
9717e36c MB |
3921 | { |
3922 | int i, equal_p = 1; | |
3923 | ||
3924 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
3925 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 3926 | |
82641697 GM |
3927 | return equal_p; |
3928 | } | |
3929 | ||
3930 | ||
3931 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
3932 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 3933 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
3934 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
3935 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 | 3936 | If FRAME is omitted or nil, use the selected frame. */) |
5842a27b | 3937 | (Lisp_Object face1, Lisp_Object face2, Lisp_Object frame) |
82641697 GM |
3938 | { |
3939 | int equal_p; | |
7b953c9c | 3940 | struct frame *f; |
82641697 | 3941 | Lisp_Object lface1, lface2; |
178c5d9c | 3942 | |
7b953c9c MB |
3943 | if (EQ (frame, Qt)) |
3944 | f = NULL; | |
3945 | else | |
3946 | /* Don't use check_x_frame here because this function is called | |
3947 | before X frames exist. At that time, if FRAME is nil, | |
3948 | selected_frame will be used which is the frame dumped with | |
3949 | Emacs. That frame is not an X frame. */ | |
3950 | f = frame_or_selected_frame (frame, 2); | |
3951 | ||
03f11322 JB |
3952 | lface1 = lface_from_face_name (f, face1, 1); |
3953 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
3954 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
3955 | XVECTOR (lface2)->contents); | |
3956 | return equal_p ? Qt : Qnil; | |
3957 | } | |
3958 | ||
178c5d9c | 3959 | |
82641697 GM |
3960 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
3961 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 3962 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
3963 | If the optional argument FRAME is given, report on face FACE in that frame. |
3964 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 | 3965 | If FRAME is omitted or nil, use the selected frame. */) |
5842a27b | 3966 | (Lisp_Object face, Lisp_Object frame) |
82641697 GM |
3967 | { |
3968 | struct frame *f; | |
3969 | Lisp_Object lface; | |
3970 | int i; | |
3971 | ||
3972 | if (NILP (frame)) | |
c0617987 | 3973 | frame = selected_frame; |
b7826503 | 3974 | CHECK_LIVE_FRAME (frame); |
c0617987 | 3975 | f = XFRAME (frame); |
178c5d9c | 3976 | |
82641697 GM |
3977 | if (EQ (frame, Qt)) |
3978 | lface = lface_from_face_name (NULL, face, 1); | |
3979 | else | |
3980 | lface = lface_from_face_name (f, face, 1); | |
3981 | ||
3982 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3983 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 3984 | break; |
178c5d9c | 3985 | |
82641697 GM |
3986 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
3987 | } | |
3988 | ||
3989 | ||
3990 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 3991 | 0, 1, 0, |
7ee72033 MB |
3992 | doc: /* Return an alist of frame-local faces defined on FRAME. |
3993 | For internal use only. */) | |
5842a27b | 3994 | (Lisp_Object frame) |
82641697 GM |
3995 | { |
3996 | struct frame *f = frame_or_selected_frame (frame, 0); | |
3997 | return f->face_alist; | |
3998 | } | |
3999 | ||
4000 | ||
4001 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4002 | below in computing a hash value for a Lisp face. */ | |
4003 | ||
55d4c1b2 | 4004 | static inline unsigned |
971de7fb | 4005 | hash_string_case_insensitive (Lisp_Object string) |
82641697 | 4006 | { |
53c208f6 | 4007 | const unsigned char *s; |
82641697 GM |
4008 | unsigned hash = 0; |
4009 | xassert (STRINGP (string)); | |
d5db4077 | 4010 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
4011 | hash = (hash << 1) ^ tolower (*s); |
4012 | return hash; | |
4013 | } | |
4014 | ||
4015 | ||
4016 | /* Return a hash code for face attribute vector V. */ | |
4017 | ||
55d4c1b2 | 4018 | static inline unsigned |
971de7fb | 4019 | lface_hash (Lisp_Object *v) |
82641697 GM |
4020 | { |
4021 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
53aaf1e2 | 4022 | ^ hash_string_case_insensitive (v[LFACE_FOUNDRY_INDEX]) |
82641697 GM |
4023 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) |
4024 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
a2bc5bdd SM |
4025 | ^ XHASH (v[LFACE_WEIGHT_INDEX]) |
4026 | ^ XHASH (v[LFACE_SLANT_INDEX]) | |
4027 | ^ XHASH (v[LFACE_SWIDTH_INDEX]) | |
4028 | ^ XHASH (v[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
4029 | } |
4030 | ||
4031 | ||
4032 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4033 | considering charsets/registries). They do if they specify the same | |
2dee4c0b | 4034 | family, point size, weight, width, slant, and font. Both |
763bc839 | 4035 | LFACE1 and LFACE2 must be fully-specified. */ |
82641697 | 4036 | |
55d4c1b2 | 4037 | static inline int |
971de7fb | 4038 | lface_same_font_attributes_p (Lisp_Object *lface1, Lisp_Object *lface2) |
82641697 GM |
4039 | { |
4040 | xassert (lface_fully_specified_p (lface1) | |
4041 | && lface_fully_specified_p (lface2)); | |
25a48bd0 PE |
4042 | return (xstrcasecmp (SSDATA (lface1[LFACE_FAMILY_INDEX]), |
4043 | SSDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
4044 | && xstrcasecmp (SSDATA (lface1[LFACE_FOUNDRY_INDEX]), | |
4045 | SSDATA (lface2[LFACE_FOUNDRY_INDEX])) == 0 | |
2c20458f | 4046 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 GM |
4047 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
4048 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
39506348 | 4049 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
2dee4c0b | 4050 | && EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) |
763bc839 KH |
4051 | && (EQ (lface1[LFACE_FONTSET_INDEX], lface2[LFACE_FONTSET_INDEX]) |
4052 | || (STRINGP (lface1[LFACE_FONTSET_INDEX]) | |
4053 | && STRINGP (lface2[LFACE_FONTSET_INDEX]) | |
25a48bd0 PE |
4054 | && ! xstrcasecmp (SSDATA (lface1[LFACE_FONTSET_INDEX]), |
4055 | SSDATA (lface2[LFACE_FONTSET_INDEX])))) | |
763bc839 | 4056 | ); |
82641697 GM |
4057 | } |
4058 | ||
4059 | ||
4060 | \f | |
4061 | /*********************************************************************** | |
4062 | Realized Faces | |
4063 | ***********************************************************************/ | |
4064 | ||
4065 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4066 | vector ATTR. */ |
82641697 GM |
4067 | |
4068 | static struct face * | |
971de7fb | 4069 | make_realized_face (Lisp_Object *attr) |
82641697 GM |
4070 | { |
4071 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
72af86bd | 4072 | memset (face, 0, sizeof *face); |
39506348 | 4073 | face->ascii_face = face; |
72af86bd | 4074 | memcpy (face->lface, attr, sizeof face->lface); |
82641697 GM |
4075 | return face; |
4076 | } | |
4077 | ||
4078 | ||
4079 | /* Free realized face FACE, including its X resources. FACE may | |
4080 | be null. */ | |
4081 | ||
435f4c28 | 4082 | static void |
971de7fb | 4083 | free_realized_face (struct frame *f, struct face *face) |
82641697 GM |
4084 | { |
4085 | if (face) | |
4086 | { | |
c3cee013 JR |
4087 | #ifdef HAVE_WINDOW_SYSTEM |
4088 | if (FRAME_WINDOW_P (f)) | |
82641697 | 4089 | { |
39506348 KH |
4090 | /* Free fontset of FACE if it is ASCII face. */ |
4091 | if (face->fontset >= 0 && face == face->ascii_face) | |
4092 | free_face_fontset (f, face); | |
82641697 GM |
4093 | if (face->gc) |
4094 | { | |
985773c9 | 4095 | BLOCK_INPUT; |
2dee4c0b | 4096 | if (face->font) |
426b2119 | 4097 | font_done_for_face (f, face); |
82641697 GM |
4098 | x_free_gc (f, face->gc); |
4099 | face->gc = 0; | |
ed0c79c6 | 4100 | UNBLOCK_INPUT; |
82641697 | 4101 | } |
178c5d9c | 4102 | |
82641697 GM |
4103 | free_face_colors (f, face); |
4104 | x_destroy_bitmap (f, face->stipple); | |
4105 | } | |
c3cee013 | 4106 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4107 | |
4108 | xfree (face); | |
4109 | } | |
4110 | } | |
4111 | ||
4112 | ||
4113 | /* Prepare face FACE for subsequent display on frame F. This | |
4114 | allocated GCs if they haven't been allocated yet or have been freed | |
4115 | by clearing the face cache. */ | |
4116 | ||
4117 | void | |
971de7fb | 4118 | prepare_face_for_display (struct frame *f, struct face *face) |
82641697 | 4119 | { |
c3cee013 JR |
4120 | #ifdef HAVE_WINDOW_SYSTEM |
4121 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 4122 | |
82641697 GM |
4123 | if (face->gc == 0) |
4124 | { | |
4125 | XGCValues xgcv; | |
4126 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4127 | ||
4128 | xgcv.foreground = face->foreground; | |
4129 | xgcv.background = face->background; | |
c3cee013 | 4130 | #ifdef HAVE_X_WINDOWS |
82641697 | 4131 | xgcv.graphics_exposures = False; |
c3cee013 | 4132 | #endif |
82641697 GM |
4133 | |
4134 | BLOCK_INPUT; | |
c3cee013 | 4135 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
4136 | if (face->stipple) |
4137 | { | |
be8a72f4 | 4138 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4139 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4140 | mask |= GCFillStyle | GCStipple; | |
4141 | } | |
c3cee013 | 4142 | #endif |
82641697 | 4143 | face->gc = x_create_gc (f, mask, &xgcv); |
2dee4c0b | 4144 | if (face->font) |
426b2119 | 4145 | font_prepare_for_face (f, face); |
82641697 GM |
4146 | UNBLOCK_INPUT; |
4147 | } | |
c3cee013 | 4148 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4149 | } |
4150 | ||
82641697 | 4151 | \f |
b35df831 MB |
4152 | /* Returns the `distance' between the colors X and Y. */ |
4153 | ||
4154 | static int | |
971de7fb | 4155 | color_distance (XColor *x, XColor *y) |
b35df831 MB |
4156 | { |
4157 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
4158 | Quoting from that paper: | |
4159 | ||
4160 | This formula has results that are very close to L*u*v* (with the | |
4161 | modified lightness curve) and, more importantly, it is a more even | |
4162 | algorithm: it does not have a range of colours where it suddenly | |
4163 | gives far from optimal results. | |
4164 | ||
4165 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
4166 | ||
4167 | long r = (x->red - y->red) >> 8; | |
4168 | long g = (x->green - y->green) >> 8; | |
4169 | long b = (x->blue - y->blue) >> 8; | |
4170 | long r_mean = (x->red + y->red) >> 9; | |
4171 | ||
4172 | return | |
4173 | (((512 + r_mean) * r * r) >> 8) | |
4174 | + 4 * g * g | |
4175 | + (((767 - r_mean) * b * b) >> 8); | |
4176 | } | |
4177 | ||
4178 | ||
4179 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
4180 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
4181 | COLOR1 and COLOR2 may be either strings containing the color name, | |
4182 | or lists of the form (RED GREEN BLUE). | |
4183 | If FRAME is unspecified or nil, the current frame is used. */) | |
5842a27b | 4184 | (Lisp_Object color1, Lisp_Object color2, Lisp_Object frame) |
b35df831 MB |
4185 | { |
4186 | struct frame *f; | |
4187 | XColor cdef1, cdef2; | |
4188 | ||
4189 | if (NILP (frame)) | |
4190 | frame = selected_frame; | |
4191 | CHECK_LIVE_FRAME (frame); | |
4192 | f = XFRAME (frame); | |
4193 | ||
6c8e1d62 | 4194 | if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1)) |
42a5b22f | 4195 | && !(STRINGP (color1) && defined_color (f, SSDATA (color1), &cdef1, 0))) |
b35df831 | 4196 | signal_error ("Invalid color", color1); |
6c8e1d62 | 4197 | if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2)) |
42a5b22f | 4198 | && !(STRINGP (color2) && defined_color (f, SSDATA (color2), &cdef2, 0))) |
b35df831 MB |
4199 | signal_error ("Invalid color", color2); |
4200 | ||
4201 | return make_number (color_distance (&cdef1, &cdef2)); | |
4202 | } | |
4203 | ||
4204 | \f | |
82641697 GM |
4205 | /*********************************************************************** |
4206 | Face Cache | |
4207 | ***********************************************************************/ | |
4208 | ||
4209 | /* Return a new face cache for frame F. */ | |
4210 | ||
4211 | static struct face_cache * | |
971de7fb | 4212 | make_face_cache (struct frame *f) |
82641697 GM |
4213 | { |
4214 | struct face_cache *c; | |
4215 | int size; | |
4216 | ||
4217 | c = (struct face_cache *) xmalloc (sizeof *c); | |
72af86bd | 4218 | memset (c, 0, sizeof *c); |
82641697 GM |
4219 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; |
4220 | c->buckets = (struct face **) xmalloc (size); | |
72af86bd | 4221 | memset (c->buckets, 0, size); |
82641697 GM |
4222 | c->size = 50; |
4223 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4224 | c->f = f; | |
ceeda019 | 4225 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
4226 | return c; |
4227 | } | |
4228 | ||
4229 | ||
4230 | /* Clear out all graphics contexts for all realized faces, except for | |
4231 | the basic faces. This should be done from time to time just to avoid | |
4232 | keeping too many graphics contexts that are no longer needed. */ | |
4233 | ||
4234 | static void | |
971de7fb | 4235 | clear_face_gcs (struct face_cache *c) |
82641697 | 4236 | { |
c3cee013 | 4237 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 4238 | { |
c3cee013 | 4239 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4240 | int i; |
4241 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4242 | { | |
4243 | struct face *face = c->faces_by_id[i]; | |
4244 | if (face && face->gc) | |
4245 | { | |
985773c9 | 4246 | BLOCK_INPUT; |
2dee4c0b | 4247 | if (face->font) |
426b2119 | 4248 | font_done_for_face (c->f, face); |
82641697 GM |
4249 | x_free_gc (c->f, face->gc); |
4250 | face->gc = 0; | |
ed0c79c6 | 4251 | UNBLOCK_INPUT; |
82641697 GM |
4252 | } |
4253 | } | |
c3cee013 | 4254 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4255 | } |
4256 | } | |
4257 | ||
4258 | ||
7fc92635 JB |
4259 | /* Free all realized faces in face cache C, including basic faces. |
4260 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
4261 | matrix is marked invalid, so that a display caused by an expose |
4262 | event doesn't try to use faces we destroyed. */ | |
4263 | ||
4264 | static void | |
971de7fb | 4265 | free_realized_faces (struct face_cache *c) |
82641697 GM |
4266 | { |
4267 | if (c && c->used) | |
4268 | { | |
4269 | int i, size; | |
4270 | struct frame *f = c->f; | |
4271 | ||
84ec3b4b GM |
4272 | /* We must block input here because we can't process X events |
4273 | safely while only some faces are freed, or when the frame's | |
4274 | current matrix still references freed faces. */ | |
4275 | BLOCK_INPUT; | |
4276 | ||
82641697 GM |
4277 | for (i = 0; i < c->used; ++i) |
4278 | { | |
4279 | free_realized_face (f, c->faces_by_id[i]); | |
4280 | c->faces_by_id[i] = NULL; | |
4281 | } | |
178c5d9c | 4282 | |
82641697 GM |
4283 | c->used = 0; |
4284 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
72af86bd | 4285 | memset (c->buckets, 0, size); |
82641697 GM |
4286 | |
4287 | /* Must do a thorough redisplay the next time. Mark current | |
4288 | matrices as invalid because they will reference faces freed | |
4289 | above. This function is also called when a frame is | |
4290 | destroyed. In this case, the root window of F is nil. */ | |
4291 | if (WINDOWP (f->root_window)) | |
4292 | { | |
4293 | clear_current_matrices (f); | |
4294 | ++windows_or_buffers_changed; | |
4295 | } | |
84ec3b4b GM |
4296 | |
4297 | UNBLOCK_INPUT; | |
82641697 GM |
4298 | } |
4299 | } | |
4300 | ||
4301 | ||
4302 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. | |
4303 | This is done after attributes of a named face have been changed, | |
4304 | because we can't tell which realized faces depend on that face. */ | |
4305 | ||
4306 | void | |
971de7fb | 4307 | free_all_realized_faces (Lisp_Object frame) |
82641697 GM |
4308 | { |
4309 | if (NILP (frame)) | |
4310 | { | |
4311 | Lisp_Object rest; | |
4312 | FOR_EACH_FRAME (rest, frame) | |
4313 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4314 | } | |
4315 | else | |
4316 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4317 | } | |
4318 | ||
4319 | ||
4320 | /* Free face cache C and faces in it, including their X resources. */ | |
4321 | ||
4322 | static void | |
971de7fb | 4323 | free_face_cache (struct face_cache *c) |
82641697 GM |
4324 | { |
4325 | if (c) | |
4326 | { | |
4327 | free_realized_faces (c); | |
4328 | xfree (c->buckets); | |
4329 | xfree (c->faces_by_id); | |
4330 | xfree (c); | |
4331 | } | |
4332 | } | |
4333 | ||
4334 | ||
4335 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
af53b43c KH |
4336 | of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face == |
4337 | FACE), insert the new face to the beginning of the collision list | |
4338 | of the face hash table of C. Otherwise, add the new face to the | |
4339 | end of the collision list. This way, lookup_face can quickly find | |
4340 | that a requested face is not cached. */ | |
82641697 GM |
4341 | |
4342 | static void | |
971de7fb | 4343 | cache_face (struct face_cache *c, struct face *face, unsigned int hash) |
82641697 GM |
4344 | { |
4345 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4346 | ||
4347 | face->hash = hash; | |
4348 | ||
af53b43c | 4349 | if (face->ascii_face != face) |
82641697 GM |
4350 | { |
4351 | struct face *last = c->buckets[i]; | |
4352 | if (last) | |
4353 | { | |
4354 | while (last->next) | |
4355 | last = last->next; | |
4356 | last->next = face; | |
4357 | face->prev = last; | |
4358 | face->next = NULL; | |
4359 | } | |
4360 | else | |
4361 | { | |
4362 | c->buckets[i] = face; | |
4363 | face->prev = face->next = NULL; | |
4364 | } | |
4365 | } | |
4366 | else | |
4367 | { | |
4368 | face->prev = NULL; | |
4369 | face->next = c->buckets[i]; | |
4370 | if (face->next) | |
4371 | face->next->prev = face; | |
4372 | c->buckets[i] = face; | |
4373 | } | |
4374 | ||
4375 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4376 | slot as FACE->id. */ | |
4377 | for (i = 0; i < c->used; ++i) | |
4378 | if (c->faces_by_id[i] == NULL) | |
4379 | break; | |
4380 | face->id = i; | |
178c5d9c | 4381 | |
82641697 | 4382 | /* Maybe enlarge C->faces_by_id. */ |
6b61353c | 4383 | if (i == c->used) |
82641697 | 4384 | { |
6b61353c KH |
4385 | if (c->used == c->size) |
4386 | { | |
4387 | int new_size, sz; | |
4388 | new_size = min (2 * c->size, MAX_FACE_ID); | |
4389 | if (new_size == c->size) | |
4390 | abort (); /* Alternatives? ++kfs */ | |
4391 | sz = new_size * sizeof *c->faces_by_id; | |
4392 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4393 | c->size = new_size; | |
4394 | } | |
4395 | c->used++; | |
82641697 GM |
4396 | } |
4397 | ||
4398 | #if GLYPH_DEBUG | |
4399 | /* Check that FACE got a unique id. */ | |
4400 | { | |
4401 | int j, n; | |
4402 | struct face *face; | |
4403 | ||
4404 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4405 | for (face = c->buckets[j]; face; face = face->next) | |
4406 | if (face->id == i) | |
4407 | ++n; | |
4408 | ||
4409 | xassert (n == 1); | |
4410 | } | |
4411 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 4412 | |
82641697 | 4413 | c->faces_by_id[i] = face; |
82641697 GM |
4414 | } |
4415 | ||
4416 | ||
4417 | /* Remove face FACE from cache C. */ | |
4418 | ||
4419 | static void | |
971de7fb | 4420 | uncache_face (struct face_cache *c, struct face *face) |
82641697 GM |
4421 | { |
4422 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 4423 | |
82641697 GM |
4424 | if (face->prev) |
4425 | face->prev->next = face->next; | |
4426 | else | |
4427 | c->buckets[i] = face->next; | |
178c5d9c | 4428 | |
82641697 GM |
4429 | if (face->next) |
4430 | face->next->prev = face->prev; | |
178c5d9c | 4431 | |
82641697 GM |
4432 | c->faces_by_id[face->id] = NULL; |
4433 | if (face->id == c->used) | |
4434 | --c->used; | |
4435 | } | |
4436 | ||
4437 | ||
4438 | /* Look up a realized face with face attributes ATTR in the face cache | |
af53b43c KH |
4439 | of frame F. The face will be used to display ASCII characters. |
4440 | Value is the ID of the face found. If no suitable face is found, | |
4441 | realize a new one. */ | |
82641697 | 4442 | |
55d4c1b2 | 4443 | static inline int |
971de7fb | 4444 | lookup_face (struct frame *f, Lisp_Object *attr) |
82641697 | 4445 | { |
39506348 | 4446 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
4447 | unsigned hash; |
4448 | int i; | |
4449 | struct face *face; | |
4450 | ||
39506348 | 4451 | xassert (cache != NULL); |
82641697 GM |
4452 | check_lface_attrs (attr); |
4453 | ||
4454 | /* Look up ATTR in the face cache. */ | |
4455 | hash = lface_hash (attr); | |
4456 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 4457 | |
39506348 | 4458 | for (face = cache->buckets[i]; face; face = face->next) |
af53b43c KH |
4459 | { |
4460 | if (face->ascii_face != face) | |
4461 | { | |
4462 | /* There's no more ASCII face. */ | |
4463 | face = NULL; | |
4464 | break; | |
4465 | } | |
4466 | if (face->hash == hash | |
4467 | && lface_equal_p (face->lface, attr)) | |
4468 | break; | |
4469 | } | |
82641697 GM |
4470 | |
4471 | /* If not found, realize a new face. */ | |
4472 | if (face == NULL) | |
af53b43c | 4473 | face = realize_face (cache, attr, -1); |
82641697 GM |
4474 | |
4475 | #if GLYPH_DEBUG | |
4476 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 4477 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 4478 | |
82641697 GM |
4479 | return face->id; |
4480 | } | |
4481 | ||
2dee4c0b KH |
4482 | #ifdef HAVE_WINDOW_SYSTEM |
4483 | /* Look up a realized face that has the same attributes as BASE_FACE | |
4484 | except for the font in the face cache of frame F. If FONT-OBJECT | |
4485 | is not nil, it is an already opened font. If FONT-OBJECT is nil, | |
4486 | the face has no font. Value is the ID of the face found. If no | |
4487 | suitable face is found, realize a new one. */ | |
426b2119 | 4488 | |
426b2119 | 4489 | int |
971de7fb | 4490 | face_for_font (struct frame *f, Lisp_Object font_object, struct face *base_face) |
426b2119 KH |
4491 | { |
4492 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
4493 | unsigned hash; | |
4494 | int i; | |
4495 | struct face *face; | |
4496 | ||
4497 | xassert (cache != NULL); | |
4498 | base_face = base_face->ascii_face; | |
4499 | hash = lface_hash (base_face->lface); | |
4500 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4501 | ||
4502 | for (face = cache->buckets[i]; face; face = face->next) | |
4503 | { | |
4504 | if (face->ascii_face == face) | |
4505 | continue; | |
4506 | if (face->ascii_face == base_face | |
2dee4c0b KH |
4507 | && face->font == (NILP (font_object) ? NULL |
4508 | : XFONT_OBJECT (font_object)) | |
4509 | && lface_equal_p (face->lface, base_face->lface)) | |
426b2119 KH |
4510 | return face->id; |
4511 | } | |
4512 | ||
4513 | /* If not found, realize a new face. */ | |
2dee4c0b | 4514 | face = realize_non_ascii_face (f, font_object, base_face); |
426b2119 KH |
4515 | return face->id; |
4516 | } | |
8c6204de | 4517 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4518 | |
82641697 | 4519 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
4520 | frame F suitable for displaying ASCII characters. Value is -1 if |
4521 | the face couldn't be determined, which might happen if the default | |
4522 | face isn't realized and cannot be realized. */ | |
82641697 GM |
4523 | |
4524 | int | |
971de7fb | 4525 | lookup_named_face (struct frame *f, Lisp_Object symbol, int signal_p) |
82641697 | 4526 | { |
e7d7fd8c MB |
4527 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
4528 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
4529 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
4530 | ||
b5de343d GM |
4531 | if (default_face == NULL) |
4532 | { | |
4533 | if (!realize_basic_faces (f)) | |
4534 | return -1; | |
4535 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
418ca4d2 RS |
4536 | if (default_face == NULL) |
4537 | abort (); /* realize_basic_faces must have set it up */ | |
b5de343d GM |
4538 | } |
4539 | ||
f2cec7a9 | 4540 | if (! get_lface_attributes (f, symbol, symbol_attrs, signal_p, 0)) |
2272e967 KS |
4541 | return -1; |
4542 | ||
72af86bd | 4543 | memcpy (attrs, default_face->lface, sizeof attrs); |
e7d7fd8c | 4544 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
a0a23346 | 4545 | |
af53b43c | 4546 | return lookup_face (f, attrs); |
82641697 GM |
4547 | } |
4548 | ||
4549 | ||
f2cec7a9 MB |
4550 | /* Return the display face-id of the basic face who's canonical face-id |
4551 | is FACE_ID. The return value will usually simply be FACE_ID, unless that | |
4552 | basic face has bee remapped via Vface_remapping_alist. This function is | |
4553 | conservative: if something goes wrong, it will simply return FACE_ID | |
4554 | rather than signal an error. */ | |
4555 | ||
4556 | int | |
971de7fb | 4557 | lookup_basic_face (struct frame *f, int face_id) |
f2cec7a9 MB |
4558 | { |
4559 | Lisp_Object name, mapping; | |
4560 | int remapped_face_id; | |
4561 | ||
4562 | if (NILP (Vface_remapping_alist)) | |
4563 | return face_id; /* Nothing to do. */ | |
4564 | ||
4565 | switch (face_id) | |
4566 | { | |
4567 | case DEFAULT_FACE_ID: name = Qdefault; break; | |
4568 | case MODE_LINE_FACE_ID: name = Qmode_line; break; | |
4569 | case MODE_LINE_INACTIVE_FACE_ID: name = Qmode_line_inactive; break; | |
4570 | case HEADER_LINE_FACE_ID: name = Qheader_line; break; | |
4571 | case TOOL_BAR_FACE_ID: name = Qtool_bar; break; | |
4572 | case FRINGE_FACE_ID: name = Qfringe; break; | |
4573 | case SCROLL_BAR_FACE_ID: name = Qscroll_bar; break; | |
4574 | case BORDER_FACE_ID: name = Qborder; break; | |
4575 | case CURSOR_FACE_ID: name = Qcursor; break; | |
4576 | case MOUSE_FACE_ID: name = Qmouse; break; | |
4577 | case MENU_FACE_ID: name = Qmenu; break; | |
4578 | ||
4579 | default: | |
4580 | abort (); /* the caller is supposed to pass us a basic face id */ | |
4581 | } | |
4582 | ||
4583 | /* Do a quick scan through Vface_remapping_alist, and return immediately | |
4584 | if there is no remapping for face NAME. This is just an optimization | |
4585 | for the very common no-remapping case. */ | |
4586 | mapping = assq_no_quit (name, Vface_remapping_alist); | |
4587 | if (NILP (mapping)) | |
4588 | return face_id; /* Give up. */ | |
4589 | ||
4590 | /* If there is a remapping entry, lookup the face using NAME, which will | |
4591 | handle the remapping too. */ | |
4592 | remapped_face_id = lookup_named_face (f, name, 0); | |
4593 | if (remapped_face_id < 0) | |
4594 | return face_id; /* Give up. */ | |
4595 | ||
4596 | return remapped_face_id; | |
4597 | } | |
4598 | ||
4599 | ||
82641697 GM |
4600 | /* Return a face for charset ASCII that is like the face with id |
4601 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4602 | STEPS < 0 means larger. Value is the id of the face. */ | |
4603 | ||
4604 | int | |
971de7fb | 4605 | smaller_face (struct frame *f, int face_id, int steps) |
39506348 | 4606 | { |
c3cee013 | 4607 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4608 | struct face *face; |
4609 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4610 | int pt, last_pt, last_height; | |
4611 | int delta; | |
4612 | int new_face_id; | |
4613 | struct face *new_face; | |
4614 | ||
4615 | /* If not called for an X frame, just return the original face. */ | |
4616 | if (FRAME_TERMCAP_P (f)) | |
4617 | return face_id; | |
4618 | ||
4619 | /* Try in increments of 1/2 pt. */ | |
4620 | delta = steps < 0 ? 5 : -5; | |
1ea40aa2 | 4621 | steps = eabs (steps); |
178c5d9c | 4622 | |
82641697 | 4623 | face = FACE_FROM_ID (f, face_id); |
72af86bd | 4624 | memcpy (attrs, face->lface, sizeof attrs); |
82641697 GM |
4625 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); |
4626 | new_face_id = face_id; | |
4627 | last_height = FONT_HEIGHT (face->font); | |
4628 | ||
4629 | while (steps | |
4630 | && pt + delta > 0 | |
4631 | /* Give up if we cannot find a font within 10pt. */ | |
1ea40aa2 | 4632 | && eabs (last_pt - pt) < 100) |
82641697 GM |
4633 | { |
4634 | /* Look up a face for a slightly smaller/larger font. */ | |
4635 | pt += delta; | |
4636 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
af53b43c | 4637 | new_face_id = lookup_face (f, attrs); |
82641697 GM |
4638 | new_face = FACE_FROM_ID (f, new_face_id); |
4639 | ||
4640 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
4641 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
4642 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
4643 | { |
4644 | --steps; | |
4645 | last_height = FONT_HEIGHT (new_face->font); | |
4646 | last_pt = pt; | |
4647 | } | |
4648 | } | |
4649 | ||
4650 | return new_face_id; | |
4651 | ||
c3cee013 | 4652 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4653 | |
4654 | return face_id; | |
178c5d9c | 4655 | |
c3cee013 | 4656 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4657 | } |
4658 | ||
4659 | ||
4660 | /* Return a face for charset ASCII that is like the face with id | |
4661 | FACE_ID on frame F, but has height HEIGHT. */ | |
4662 | ||
4663 | int | |
971de7fb | 4664 | face_with_height (struct frame *f, int face_id, int height) |
82641697 | 4665 | { |
c3cee013 | 4666 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4667 | struct face *face; |
4668 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4669 | ||
4670 | if (FRAME_TERMCAP_P (f) | |
4671 | || height <= 0) | |
4672 | return face_id; | |
4673 | ||
4674 | face = FACE_FROM_ID (f, face_id); | |
72af86bd | 4675 | memcpy (attrs, face->lface, sizeof attrs); |
82641697 | 4676 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); |
a8c0cc18 | 4677 | font_clear_prop (attrs, FONT_SIZE_INDEX); |
af53b43c | 4678 | face_id = lookup_face (f, attrs); |
c3cee013 | 4679 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 4680 | |
82641697 GM |
4681 | return face_id; |
4682 | } | |
4683 | ||
b5de343d | 4684 | |
44747bd0 | 4685 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
4686 | frame F suitable for displaying ASCII characters, and use |
4687 | attributes of the face FACE_ID for attributes that aren't | |
4688 | completely specified by SYMBOL. This is like lookup_named_face, | |
4689 | except that the default attributes come from FACE_ID, not from the | |
4690 | default face. FACE_ID is assumed to be already realized. */ | |
44747bd0 EZ |
4691 | |
4692 | int | |
971de7fb | 4693 | lookup_derived_face (struct frame *f, Lisp_Object symbol, int face_id, int signal_p) |
44747bd0 | 4694 | { |
e7d7fd8c | 4695 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
44747bd0 EZ |
4696 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
4697 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
4698 | ||
4699 | if (!default_face) | |
4700 | abort (); | |
4701 | ||
d8453278 CY |
4702 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p, 0)) |
4703 | return -1; | |
4704 | ||
72af86bd | 4705 | memcpy (attrs, default_face->lface, sizeof attrs); |
e7d7fd8c | 4706 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
af53b43c | 4707 | return lookup_face (f, attrs); |
44747bd0 EZ |
4708 | } |
4709 | ||
f6608d5c RS |
4710 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
4711 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 4712 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
5842a27b | 4713 | (Lisp_Object plist) |
f6608d5c RS |
4714 | { |
4715 | Lisp_Object lface; | |
4716 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4717 | Qunspecified); | |
a0a23346 MB |
4718 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
4719 | 1, 0); | |
f6608d5c RS |
4720 | return lface; |
4721 | } | |
4722 | ||
82641697 GM |
4723 | |
4724 | \f | |
9717e36c MB |
4725 | /*********************************************************************** |
4726 | Face capability testing | |
4727 | ***********************************************************************/ | |
4728 | ||
4729 | ||
4730 | /* If the distance (as returned by color_distance) between two colors is | |
4731 | less than this, then they are considered the same, for determining | |
4732 | whether a color is supported or not. The range of values is 0-65535. */ | |
4733 | ||
4734 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
4735 | ||
ccda4e3c | 4736 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
4737 | |
4738 | /* Return non-zero if all the face attributes in ATTRS are supported | |
4739 | on the window-system frame F. | |
4740 | ||
4741 | The definition of `supported' is somewhat heuristic, but basically means | |
4742 | that a face containing all the attributes in ATTRS, when merged with the | |
4743 | default face for display, can be represented in a way that's | |
4744 | ||
4745 | \(1) different in appearance than the default face, and | |
8e330b22 | 4746 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
4747 | |
4748 | static int | |
971de7fb | 4749 | x_supports_face_attributes_p (struct frame *f, Lisp_Object *attrs, struct face *def_face) |
9717e36c | 4750 | { |
8e330b22 | 4751 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
4752 | |
4753 | /* Check that other specified attributes are different that the default | |
4754 | face. */ | |
4755 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
4756 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
4757 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
4758 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
4759 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
4760 | def_attrs[LFACE_INVERSE_INDEX])) | |
4761 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
4762 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
4763 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
4764 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
4765 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
4766 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
4767 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
4768 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
4769 | def_attrs[LFACE_STIPPLE_INDEX])) | |
4770 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
4771 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
4772 | def_attrs[LFACE_OVERLINE_INDEX])) | |
4773 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
4774 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
4775 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
4776 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
4777 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
4778 | def_attrs[LFACE_BOX_INDEX]))) | |
4779 | return 0; | |
4780 | ||
4781 | /* Check font-related attributes, as those are the most commonly | |
4782 | "unsupported" on a window-system (because of missing fonts). */ | |
4783 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
53aaf1e2 | 4784 | || !UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
9717e36c MB |
4785 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
4786 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
4787 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2dee4c0b | 4788 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX])) |
9717e36c | 4789 | { |
327719ee | 4790 | int face_id; |
9717e36c MB |
4791 | struct face *face; |
4792 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
2dee4c0b | 4793 | int i; |
9717e36c | 4794 | |
72af86bd | 4795 | memcpy (merged_attrs, def_attrs, sizeof merged_attrs); |
9717e36c | 4796 | |
a0a23346 | 4797 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c | 4798 | |
327719ee MB |
4799 | face_id = lookup_face (f, merged_attrs); |
4800 | face = FACE_FROM_ID (f, face_id); | |
9717e36c MB |
4801 | |
4802 | if (! face) | |
2010ba8c | 4803 | error ("Cannot make face"); |
9717e36c | 4804 | |
4fc1984a KH |
4805 | /* If the font is the same, or no font is found, then not |
4806 | supported. */ | |
4807 | if (face->font == def_face->font | |
4808 | || ! face->font) | |
9717e36c | 4809 | return 0; |
2dee4c0b KH |
4810 | for (i = FONT_TYPE_INDEX; i <= FONT_SIZE_INDEX; i++) |
4811 | if (! EQ (face->font->props[i], def_face->font->props[i])) | |
4812 | { | |
4813 | Lisp_Object s1, s2; | |
4814 | ||
4815 | if (i < FONT_FOUNDRY_INDEX || i > FONT_REGISTRY_INDEX | |
4816 | || face->font->driver->case_sensitive) | |
4817 | return 1; | |
4818 | s1 = SYMBOL_NAME (face->font->props[i]); | |
4819 | s2 = SYMBOL_NAME (def_face->font->props[i]); | |
4820 | if (! EQ (Fcompare_strings (s1, make_number (0), Qnil, | |
4821 | s2, make_number (0), Qnil, Qt), Qt)) | |
4822 | return 1; | |
4823 | } | |
4824 | return 0; | |
9717e36c MB |
4825 | } |
4826 | ||
4827 | /* Everything checks out, this face is supported. */ | |
4828 | return 1; | |
4829 | } | |
4830 | ||
ccda4e3c | 4831 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
4832 | |
4833 | /* Return non-zero if all the face attributes in ATTRS are supported | |
4834 | on the tty frame F. | |
4835 | ||
4836 | The definition of `supported' is somewhat heuristic, but basically means | |
4837 | that a face containing all the attributes in ATTRS, when merged | |
4838 | with the default face for display, can be represented in a way that's | |
4839 | ||
4840 | \(1) different in appearance than the default face, and | |
4841 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
4842 | ||
4843 | Point (2) implies that a `:weight black' attribute will be satisfied | |
4844 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
4845 | long as the terminal can display a yellowish color, but `:slant italic' | |
4846 | will _not_ be satisfied by the tty display code's automatic | |
4847 | substitution of a `dim' face for italic. */ | |
4848 | ||
4849 | static int | |
971de7fb | 4850 | tty_supports_face_attributes_p (struct frame *f, Lisp_Object *attrs, struct face *def_face) |
9717e36c | 4851 | { |
734e9514 | 4852 | int weight; |
9717e36c MB |
4853 | Lisp_Object val, fg, bg; |
4854 | XColor fg_tty_color, fg_std_color; | |
4855 | XColor bg_tty_color, bg_std_color; | |
4856 | unsigned test_caps = 0; | |
8e330b22 | 4857 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 4858 | |
9717e36c | 4859 | |
8e330b22 MB |
4860 | /* First check some easy-to-check stuff; ttys support none of the |
4861 | following attributes, so we can just return false if any are requested | |
4862 | (even if `nominal' values are specified, we should still return false, | |
4863 | as that will be the same value that the default face uses). We | |
4864 | consider :slant unsupportable on ttys, even though the face code | |
4865 | actually `fakes' them using a dim attribute if possible. This is | |
4866 | because the faked result is too different from what the face | |
4867 | specifies. */ | |
4868 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
53aaf1e2 | 4869 | || !UNSPECIFIEDP (attrs[LFACE_FOUNDRY_INDEX]) |
8e330b22 MB |
4870 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) |
4871 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
4872 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
4873 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
4874 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
4875 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
4876 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
4877 | return 0; |
4878 | ||
4879 | ||
4880 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
4881 | ||
4882 | /* font weight (bold/dim) */ | |
337fbd17 CY |
4883 | val = attrs[LFACE_WEIGHT_INDEX]; |
4884 | if (!UNSPECIFIEDP (val) | |
4885 | && (weight = FONT_WEIGHT_NAME_NUMERIC (val), weight >= 0)) | |
9717e36c | 4886 | { |
2dee4c0b | 4887 | int def_weight = FONT_WEIGHT_NAME_NUMERIC (def_attrs[LFACE_WEIGHT_INDEX]); |
8e330b22 | 4888 | |
2dee4c0b | 4889 | if (weight > 100) |
8e330b22 | 4890 | { |
2dee4c0b | 4891 | if (def_weight > 100) |
8e330b22 MB |
4892 | return 0; /* same as default */ |
4893 | test_caps = TTY_CAP_BOLD; | |
4894 | } | |
2dee4c0b | 4895 | else if (weight < 100) |
8e330b22 | 4896 | { |
2dee4c0b | 4897 | if (def_weight < 100) |
8e330b22 MB |
4898 | return 0; /* same as default */ |
4899 | test_caps = TTY_CAP_DIM; | |
4900 | } | |
2dee4c0b | 4901 | else if (def_weight == 100) |
8e330b22 | 4902 | return 0; /* same as default */ |
9717e36c MB |
4903 | } |
4904 | ||
4905 | /* underlining */ | |
4906 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 4907 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
4908 | { |
4909 | if (STRINGP (val)) | |
8e330b22 MB |
4910 | return 0; /* ttys can't use colored underlines */ |
4911 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
4912 | return 0; /* same as default */ | |
9717e36c MB |
4913 | else |
4914 | test_caps |= TTY_CAP_UNDERLINE; | |
4915 | } | |
4916 | ||
4917 | /* inverse video */ | |
4918 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
4919 | if (!UNSPECIFIEDP (val)) |
4920 | { | |
a13ab63f | 4921 | if (face_attr_equal_p (val, def_attrs[LFACE_INVERSE_INDEX])) |
8e330b22 MB |
4922 | return 0; /* same as default */ |
4923 | else | |
4924 | test_caps |= TTY_CAP_INVERSE; | |
4925 | } | |
9717e36c MB |
4926 | |
4927 | ||
4928 | /* Color testing. */ | |
4929 | ||
4930 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
4931 | we use them when calling `tty_capable_p' below, even if the face | |
4932 | specifies no colors. */ | |
4933 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
4934 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
4935 | ||
4936 | /* Check if foreground color is close enough. */ | |
4937 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
4938 | if (STRINGP (fg)) | |
4939 | { | |
8e330b22 MB |
4940 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
4941 | ||
4942 | if (face_attr_equal_p (fg, def_fg)) | |
4943 | return 0; /* same as default */ | |
4944 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
4945 | return 0; /* not a valid color */ | |
9717e36c MB |
4946 | else if (color_distance (&fg_tty_color, &fg_std_color) |
4947 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
4948 | return 0; /* displayed color is too different */ |
4949 | else | |
4950 | /* Make sure the color is really different than the default. */ | |
4951 | { | |
4952 | XColor def_fg_color; | |
4953 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
4954 | && (color_distance (&fg_tty_color, &def_fg_color) | |
4955 | <= TTY_SAME_COLOR_THRESHOLD)) | |
4956 | return 0; | |
4957 | } | |
9717e36c MB |
4958 | } |
4959 | ||
4960 | /* Check if background color is close enough. */ | |
4961 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
4962 | if (STRINGP (bg)) | |
4963 | { | |
a13ab63f | 4964 | Lisp_Object def_bg = def_attrs[LFACE_BACKGROUND_INDEX]; |
8e330b22 MB |
4965 | |
4966 | if (face_attr_equal_p (bg, def_bg)) | |
4967 | return 0; /* same as default */ | |
4968 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
4969 | return 0; /* not a valid color */ | |
9717e36c MB |
4970 | else if (color_distance (&bg_tty_color, &bg_std_color) |
4971 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
4972 | return 0; /* displayed color is too different */ |
4973 | else | |
4974 | /* Make sure the color is really different than the default. */ | |
4975 | { | |
4976 | XColor def_bg_color; | |
4977 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
4978 | && (color_distance (&bg_tty_color, &def_bg_color) | |
4979 | <= TTY_SAME_COLOR_THRESHOLD)) | |
4980 | return 0; | |
4981 | } | |
9717e36c MB |
4982 | } |
4983 | ||
4984 | /* If both foreground and background are requested, see if the | |
4985 | distance between them is OK. We just check to see if the distance | |
4986 | between the tty's foreground and background is close enough to the | |
4987 | distance between the standard foreground and background. */ | |
4988 | if (STRINGP (fg) && STRINGP (bg)) | |
4989 | { | |
4990 | int delta_delta | |
4991 | = (color_distance (&fg_std_color, &bg_std_color) | |
4992 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
4993 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
4994 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
4995 | return 0; | |
4996 | } | |
4997 | ||
4998 | ||
4999 | /* See if the capabilities we selected above are supported, with the | |
5000 | given colors. */ | |
5001 | if (test_caps != 0 && | |
3d63dd9d | 5002 | ! tty_capable_p (FRAME_TTY (f), test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) |
9717e36c MB |
5003 | return 0; |
5004 | ||
5005 | ||
5006 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
5007 | return 1; | |
5008 | } | |
5009 | ||
5010 | ||
5011 | DEFUN ("display-supports-face-attributes-p", | |
5012 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
5013 | 1, 2, 0, | |
5014 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
5015 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 5016 | nil (meaning the selected frame's display). |
9717e36c MB |
5017 | |
5018 | The definition of `supported' is somewhat heuristic, but basically means | |
5019 | that a face containing all the attributes in ATTRIBUTES, when merged | |
5020 | with the default face for display, can be represented in a way that's | |
5021 | ||
5022 | \(1) different in appearance than the default face, and | |
5023 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
5024 | ||
5025 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
5026 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
5027 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
5028 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 5029 | face for italic. */) |
5842a27b | 5030 | (Lisp_Object attributes, Lisp_Object display) |
9717e36c | 5031 | { |
221439a0 | 5032 | int supports = 0, i; |
9717e36c MB |
5033 | Lisp_Object frame; |
5034 | struct frame *f; | |
8e330b22 | 5035 | struct face *def_face; |
9717e36c MB |
5036 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
5037 | ||
0722292b MB |
5038 | if (noninteractive || !initialized) |
5039 | /* We may not be able to access low-level face information in batch | |
5040 | mode, or before being dumped, and this function is not going to | |
5041 | be very useful in those cases anyway, so just give up. */ | |
5042 | return Qnil; | |
5043 | ||
9717e36c MB |
5044 | if (NILP (display)) |
5045 | frame = selected_frame; | |
5046 | else if (FRAMEP (display)) | |
5047 | frame = display; | |
5048 | else | |
5049 | { | |
5050 | /* Find any frame on DISPLAY. */ | |
5051 | Lisp_Object fl_tail; | |
5052 | ||
5053 | frame = Qnil; | |
5054 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
5055 | { | |
5056 | frame = XCAR (fl_tail); | |
5057 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
5058 | XFRAME (frame)->param_alist)), | |
5059 | display))) | |
5060 | break; | |
5061 | } | |
5062 | } | |
5063 | ||
5064 | CHECK_LIVE_FRAME (frame); | |
5065 | f = XFRAME (frame); | |
5066 | ||
5067 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
5068 | attrs[i] = Qunspecified; | |
a0a23346 | 5069 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 5070 | |
8e330b22 MB |
5071 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
5072 | if (def_face == NULL) | |
5073 | { | |
5074 | if (! realize_basic_faces (f)) | |
734e9514 | 5075 | error ("Cannot realize default face"); |
8e330b22 | 5076 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
418ca4d2 RS |
5077 | if (def_face == NULL) |
5078 | abort (); /* realize_basic_faces must have set it up */ | |
8e330b22 MB |
5079 | } |
5080 | ||
9717e36c MB |
5081 | /* Dispatch to the appropriate handler. */ |
5082 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 5083 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 5084 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 5085 | else |
8e330b22 MB |
5086 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
5087 | #endif | |
9717e36c MB |
5088 | |
5089 | return supports ? Qt : Qnil; | |
5090 | } | |
5091 | ||
5092 | \f | |
82641697 GM |
5093 | /*********************************************************************** |
5094 | Font selection | |
5095 | ***********************************************************************/ | |
5096 | ||
2c7d1565 | 5097 | DEFUN ("internal-set-font-selection-order", |
82641697 GM |
5098 | Finternal_set_font_selection_order, |
5099 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 5100 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
5101 | ORDER must be a list of length 4 containing the symbols `:width', |
5102 | `:height', `:weight', and `:slant'. Face attributes appearing | |
5103 | first in ORDER are matched first, e.g. if `:height' appears before | |
5104 | `:weight' in ORDER, font selection first tries to find a font with | |
5105 | a suitable height, and then tries to match the font weight. | |
7ee72033 | 5106 | Value is ORDER. */) |
5842a27b | 5107 | (Lisp_Object order) |
82641697 GM |
5108 | { |
5109 | Lisp_Object list; | |
5110 | int i; | |
a08332c0 | 5111 | int indices[DIM (font_sort_order)]; |
178c5d9c | 5112 | |
b7826503 | 5113 | CHECK_LIST (order); |
72af86bd | 5114 | memset (indices, 0, sizeof indices); |
82641697 GM |
5115 | i = 0; |
5116 | ||
5117 | for (list = order; | |
5118 | CONSP (list) && i < DIM (indices); | |
5119 | list = XCDR (list), ++i) | |
5120 | { | |
5121 | Lisp_Object attr = XCAR (list); | |
5122 | int xlfd; | |
5123 | ||
5124 | if (EQ (attr, QCwidth)) | |
5125 | xlfd = XLFD_SWIDTH; | |
5126 | else if (EQ (attr, QCheight)) | |
5127 | xlfd = XLFD_POINT_SIZE; | |
5128 | else if (EQ (attr, QCweight)) | |
5129 | xlfd = XLFD_WEIGHT; | |
5130 | else if (EQ (attr, QCslant)) | |
5131 | xlfd = XLFD_SLANT; | |
5132 | else | |
5133 | break; | |
5134 | ||
5135 | if (indices[i] != 0) | |
5136 | break; | |
5137 | indices[i] = xlfd; | |
5138 | } | |
5139 | ||
a08332c0 | 5140 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 5141 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
5142 | for (i = 0; i < DIM (font_sort_order); ++i) |
5143 | if (indices[i] == 0) | |
5144 | signal_error ("Invalid font sort order", order); | |
82641697 | 5145 | |
72af86bd | 5146 | if (memcmp (indices, font_sort_order, sizeof indices) != 0) |
82641697 | 5147 | { |
72af86bd | 5148 | memcpy (font_sort_order, indices, sizeof font_sort_order); |
82641697 GM |
5149 | free_all_realized_faces (Qnil); |
5150 | } | |
178c5d9c | 5151 | |
2dee4c0b | 5152 | font_update_sort_order (font_sort_order); |
426b2119 | 5153 | |
82641697 GM |
5154 | return Qnil; |
5155 | } | |
5156 | ||
5157 | ||
5158 | DEFUN ("internal-set-alternative-font-family-alist", | |
5159 | Finternal_set_alternative_font_family_alist, | |
5160 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 5161 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
5162 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5163 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 | 5164 | be found. Value is ALIST. */) |
5842a27b | 5165 | (Lisp_Object alist) |
82641697 | 5166 | { |
a77d5bb2 | 5167 | Lisp_Object entry, tail, tail2; |
53aaf1e2 | 5168 | |
b7826503 | 5169 | CHECK_LIST (alist); |
53aaf1e2 KH |
5170 | alist = Fcopy_sequence (alist); |
5171 | for (tail = alist; CONSP (tail); tail = XCDR (tail)) | |
a77d5bb2 CY |
5172 | { |
5173 | entry = XCAR (tail); | |
5174 | CHECK_LIST (entry); | |
5175 | entry = Fcopy_sequence (entry); | |
5176 | XSETCAR (tail, entry); | |
5177 | for (tail2 = entry; CONSP (tail2); tail2 = XCDR (tail2)) | |
5178 | XSETCAR (tail2, Fintern (XCAR (tail2), Qnil)); | |
5179 | } | |
5180 | ||
82641697 GM |
5181 | Vface_alternative_font_family_alist = alist; |
5182 | free_all_realized_faces (Qnil); | |
5183 | return alist; | |
5184 | } | |
5185 | ||
5186 | ||
32fcc231 GM |
5187 | DEFUN ("internal-set-alternative-font-registry-alist", |
5188 | Finternal_set_alternative_font_registry_alist, | |
5189 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 5190 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
5191 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5192 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 | 5193 | be found. Value is ALIST. */) |
5842a27b | 5194 | (Lisp_Object alist) |
32fcc231 | 5195 | { |
a77d5bb2 | 5196 | Lisp_Object entry, tail, tail2; |
53aaf1e2 | 5197 | |
b7826503 | 5198 | CHECK_LIST (alist); |
53aaf1e2 KH |
5199 | alist = Fcopy_sequence (alist); |
5200 | for (tail = alist; CONSP (tail); tail = XCDR (tail)) | |
a77d5bb2 CY |
5201 | { |
5202 | entry = XCAR (tail); | |
5203 | CHECK_LIST (entry); | |
5204 | entry = Fcopy_sequence (entry); | |
5205 | XSETCAR (tail, entry); | |
5206 | for (tail2 = entry; CONSP (tail2); tail2 = XCDR (tail2)) | |
5207 | XSETCAR (tail2, Fdowncase (XCAR (tail2))); | |
5208 | } | |
32fcc231 GM |
5209 | Vface_alternative_font_registry_alist = alist; |
5210 | free_all_realized_faces (Qnil); | |
5211 | return alist; | |
5212 | } | |
5213 | ||
5214 | ||
c3cee013 | 5215 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5216 | |
39506348 KH |
5217 | /* Return the fontset id of the base fontset name or alias name given |
5218 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
5219 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
5220 | |
5221 | static int | |
971de7fb | 5222 | face_fontset (Lisp_Object *attrs) |
82641697 | 5223 | { |
39506348 | 5224 | Lisp_Object name; |
178c5d9c | 5225 | |
763bc839 | 5226 | name = attrs[LFACE_FONTSET_INDEX]; |
39506348 KH |
5227 | if (!STRINGP (name)) |
5228 | return -1; | |
5229 | return fs_query_fontset (name, 0); | |
82641697 GM |
5230 | } |
5231 | ||
c3cee013 | 5232 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5233 | |
5234 | ||
5235 | \f | |
5236 | /*********************************************************************** | |
5237 | Face Realization | |
5238 | ***********************************************************************/ | |
5239 | ||
5240 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5241 | of F don't contain enough information needed to realize the default | |
5242 | face. */ | |
5243 | ||
5244 | static int | |
971de7fb | 5245 | realize_basic_faces (struct frame *f) |
82641697 GM |
5246 | { |
5247 | int success_p = 0; | |
331379bf | 5248 | int count = SPECPDL_INDEX (); |
17e8204b | 5249 | |
04386463 GM |
5250 | /* Block input here so that we won't be surprised by an X expose |
5251 | event, for instance, without having the faces set up. */ | |
17e8204b | 5252 | BLOCK_INPUT; |
eeffb293 | 5253 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 5254 | |
82641697 GM |
5255 | if (realize_default_face (f)) |
5256 | { | |
92610620 | 5257 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 5258 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 5259 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 5260 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 5261 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5262 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5263 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5264 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5265 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5266 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 5267 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 5268 | |
b5de343d | 5269 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 5270 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 5271 | { |
ceeda019 | 5272 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 5273 | #ifdef USE_X_TOOLKIT |
daf01701 KL |
5274 | if (FRAME_WINDOW_P (f)) |
5275 | x_update_menu_appearance (f); | |
a03ad468 | 5276 | #endif |
563f68f1 | 5277 | } |
177c0ea7 | 5278 | |
82641697 GM |
5279 | success_p = 1; |
5280 | } | |
5281 | ||
eeffb293 | 5282 | unbind_to (count, Qnil); |
17e8204b | 5283 | UNBLOCK_INPUT; |
82641697 GM |
5284 | return success_p; |
5285 | } | |
5286 | ||
5287 | ||
5288 | /* Realize the default face on frame F. If the face is not fully | |
5289 | specified, make it fully-specified. Attributes of the default face | |
5290 | that are not explicitly specified are taken from frame parameters. */ | |
5291 | ||
5292 | static int | |
971de7fb | 5293 | realize_default_face (struct frame *f) |
82641697 GM |
5294 | { |
5295 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5296 | Lisp_Object lface; | |
5297 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 | 5298 | struct face *face; |
82641697 GM |
5299 | |
5300 | /* If the `default' face is not yet known, create it. */ | |
5301 | lface = lface_from_face_name (f, Qdefault, 0); | |
5302 | if (NILP (lface)) | |
07446869 GM |
5303 | { |
5304 | Lisp_Object frame; | |
5305 | XSETFRAME (frame, f); | |
5306 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5307 | } | |
5308 | ||
c3cee013 JR |
5309 | #ifdef HAVE_WINDOW_SYSTEM |
5310 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5311 | { |
2dee4c0b KH |
5312 | Lisp_Object font_object; |
5313 | ||
5314 | XSETFONT (font_object, FRAME_FONT (f)); | |
5315 | set_lface_from_font (f, lface, font_object, f->default_face_done_p); | |
5316 | LFACE_FONTSET (lface) = fontset_name (FRAME_FONTSET (f)); | |
a5f696ac | 5317 | f->default_face_done_p = 1; |
82641697 | 5318 | } |
c3cee013 | 5319 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 5320 | |
44747bd0 | 5321 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5322 | { |
5323 | LFACE_FAMILY (lface) = build_string ("default"); | |
53aaf1e2 | 5324 | LFACE_FOUNDRY (lface) = LFACE_FAMILY (lface); |
82641697 GM |
5325 | LFACE_SWIDTH (lface) = Qnormal; |
5326 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
5327 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
5328 | LFACE_WEIGHT (lface) = Qnormal; | |
5329 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
5330 | LFACE_SLANT (lface) = Qnormal; | |
70d6ecc6 KH |
5331 | if (UNSPECIFIEDP (LFACE_FONTSET (lface))) |
5332 | LFACE_FONTSET (lface) = Qnil; | |
82641697 | 5333 | } |
178c5d9c | 5334 | |
82641697 GM |
5335 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
5336 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 5337 | |
82641697 GM |
5338 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
5339 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 5340 | |
82641697 GM |
5341 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
5342 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 5343 | |
82641697 GM |
5344 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
5345 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 5346 | |
82641697 GM |
5347 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
5348 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 5349 | |
82641697 GM |
5350 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
5351 | { | |
5352 | /* This function is called so early that colors are not yet | |
5353 | set in the frame parameter list. */ | |
5354 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 5355 | |
82641697 GM |
5356 | if (CONSP (color) && STRINGP (XCDR (color))) |
5357 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 5358 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5359 | return 0; |
3224dac1 | 5360 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5361 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 5362 | else |
82641697 GM |
5363 | abort (); |
5364 | } | |
178c5d9c | 5365 | |
82641697 GM |
5366 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
5367 | { | |
5368 | /* This function is called so early that colors are not yet | |
5369 | set in the frame parameter list. */ | |
5370 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5371 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5372 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 5373 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5374 | return 0; |
3224dac1 | 5375 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5376 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 5377 | else |
82641697 GM |
5378 | abort (); |
5379 | } | |
178c5d9c | 5380 | |
82641697 GM |
5381 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
5382 | LFACE_STIPPLE (lface) = Qnil; | |
5383 | ||
5384 | /* Realize the face; it must be fully-specified now. */ | |
5385 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5386 | check_lface (lface); | |
72af86bd | 5387 | memcpy (attrs, XVECTOR (lface)->contents, sizeof attrs); |
af53b43c | 5388 | face = realize_face (c, attrs, DEFAULT_FACE_ID); |
4da9c136 KH |
5389 | |
5390 | #ifdef HAVE_WINDOW_SYSTEM | |
41a9b76e | 5391 | #ifdef HAVE_X_WINDOWS |
361c0d6e | 5392 | if (FRAME_X_P (f) && face->font != FRAME_FONT (f)) |
73158a39 CY |
5393 | { |
5394 | /* This can happen when making a frame on a display that does | |
974b73e8 | 5395 | not support the default font. */ |
73158a39 | 5396 | if (!face->font) |
974b73e8 | 5397 | return 0; |
d5ab09cd | 5398 | |
73158a39 | 5399 | /* Otherwise, the font specified for the frame was not |
974b73e8 KL |
5400 | acceptable as a font for the default face (perhaps because |
5401 | auto-scaled fonts are rejected), so we must adjust the frame | |
5402 | font. */ | |
2dee4c0b | 5403 | x_set_font (f, LFACE_FONT (lface), Qnil); |
73158a39 | 5404 | } |
4da9c136 KH |
5405 | #endif /* HAVE_X_WINDOWS */ |
5406 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
5407 | return 1; |
5408 | } | |
5409 | ||
5410 | ||
5411 | /* Realize basic faces other than the default face in face cache C. | |
5412 | SYMBOL is the face name, ID is the face id the realized face must | |
5413 | have. The default face must have been realized already. */ | |
5414 | ||
5415 | static void | |
971de7fb | 5416 | realize_named_face (struct frame *f, Lisp_Object symbol, int id) |
82641697 | 5417 | { |
e7d7fd8c | 5418 | struct face_cache *c = FRAME_FACE_CACHE (f); |
82641697 GM |
5419 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); |
5420 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
e7d7fd8c | 5421 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
82641697 GM |
5422 | |
5423 | /* The default face must exist and be fully specified. */ | |
f2cec7a9 | 5424 | get_lface_attributes_no_remap (f, Qdefault, attrs, 1); |
82641697 GM |
5425 | check_lface_attrs (attrs); |
5426 | xassert (lface_fully_specified_p (attrs)); | |
5427 | ||
e7d7fd8c | 5428 | /* If SYMBOL isn't know as a face, create it. */ |
82641697 GM |
5429 | if (NILP (lface)) |
5430 | { | |
5431 | Lisp_Object frame; | |
5432 | XSETFRAME (frame, f); | |
5433 | lface = Finternal_make_lisp_face (symbol, frame); | |
5434 | } | |
5435 | ||
5436 | /* Merge SYMBOL's face with the default face. */ | |
f2cec7a9 | 5437 | get_lface_attributes_no_remap (f, symbol, symbol_attrs, 1); |
e7d7fd8c MB |
5438 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
5439 | ||
5440 | /* Realize the face. */ | |
a5a62657 | 5441 | realize_face (c, attrs, id); |
82641697 GM |
5442 | } |
5443 | ||
5444 | ||
5445 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
5446 | cache CACHE for ASCII characters. If FORMER_FACE_ID is |
5447 | non-negative, it is an ID of face to remove before caching the new | |
5448 | face. Value is a pointer to the newly created realized face. */ | |
82641697 GM |
5449 | |
5450 | static struct face * | |
971de7fb | 5451 | realize_face (struct face_cache *cache, Lisp_Object *attrs, int former_face_id) |
82641697 GM |
5452 | { |
5453 | struct face *face; | |
178c5d9c | 5454 | |
82641697 | 5455 | /* LFACE must be fully specified. */ |
39506348 | 5456 | xassert (cache != NULL); |
82641697 GM |
5457 | check_lface_attrs (attrs); |
5458 | ||
39506348 KH |
5459 | if (former_face_id >= 0 && cache->used > former_face_id) |
5460 | { | |
5461 | /* Remove the former face. */ | |
5462 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
5463 | uncache_face (cache, former_face); | |
5464 | free_realized_face (cache->f, former_face); | |
7c33a057 | 5465 | SET_FRAME_GARBAGED (cache->f); |
39506348 KH |
5466 | } |
5467 | ||
5468 | if (FRAME_WINDOW_P (cache->f)) | |
af53b43c | 5469 | face = realize_x_face (cache, attrs); |
e689ec06 | 5470 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
af53b43c | 5471 | face = realize_tty_face (cache, attrs); |
d448e982 KL |
5472 | else if (FRAME_INITIAL_P (cache->f)) |
5473 | { | |
5474 | /* Create a dummy face. */ | |
5475 | face = make_realized_face (attrs); | |
5476 | } | |
82641697 GM |
5477 | else |
5478 | abort (); | |
5479 | ||
39506348 KH |
5480 | /* Insert the new face. */ |
5481 | cache_face (cache, face, lface_hash (attrs)); | |
af53b43c KH |
5482 | return face; |
5483 | } | |
5484 | ||
5485 | ||
8c6204de | 5486 | #ifdef HAVE_WINDOW_SYSTEM |
2dee4c0b KH |
5487 | /* Realize the fully-specified face that uses FONT-OBJECT and has the |
5488 | same attributes as BASE_FACE except for the font on frame F. | |
5489 | FONT-OBJECT may be nil, in which case, realized a face of | |
5490 | no-font. */ | |
af53b43c KH |
5491 | |
5492 | static struct face * | |
971de7fb | 5493 | realize_non_ascii_face (struct frame *f, Lisp_Object font_object, struct face *base_face) |
af53b43c KH |
5494 | { |
5495 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
8f924df7 | 5496 | struct face *face; |
af53b43c KH |
5497 | |
5498 | face = (struct face *) xmalloc (sizeof *face); | |
5499 | *face = *base_face; | |
5500 | face->gc = 0; | |
bdd10de6 | 5501 | face->extra = NULL; |
2dee4c0b KH |
5502 | face->overstrike |
5503 | = (! NILP (font_object) | |
5504 | && FONT_WEIGHT_NAME_NUMERIC (face->lface[LFACE_WEIGHT_INDEX]) > 100 | |
5505 | && FONT_WEIGHT_NUMERIC (font_object) <= 100); | |
af53b43c KH |
5506 | |
5507 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
5508 | face->colors_copied_bitwise_p = 1; | |
2dee4c0b | 5509 | face->font = NILP (font_object) ? NULL : XFONT_OBJECT (font_object); |
af53b43c KH |
5510 | face->gc = 0; |
5511 | ||
5512 | cache_face (cache, face, face->hash); | |
5513 | ||
82641697 GM |
5514 | return face; |
5515 | } | |
8c6204de | 5516 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5517 | |
5518 | ||
5519 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
5520 | cache CACHE for ASCII characters. Do it for X frame CACHE->f. If |
5521 | the new face doesn't share font with the default face, a fontname | |
5522 | is allocated from the heap and set in `font_name' of the new face, | |
5523 | but it is not yet loaded here. Value is a pointer to the newly | |
5524 | created realized face. */ | |
82641697 GM |
5525 | |
5526 | static struct face * | |
971de7fb | 5527 | realize_x_face (struct face_cache *cache, Lisp_Object *attrs) |
82641697 | 5528 | { |
7d603e3f | 5529 | struct face *face = NULL; |
c3cee013 | 5530 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 5531 | struct face *default_face; |
78d2079c | 5532 | struct frame *f; |
82641697 | 5533 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 5534 | |
39506348 | 5535 | xassert (FRAME_WINDOW_P (cache->f)); |
82641697 GM |
5536 | |
5537 | /* Allocate a new realized face. */ | |
39506348 | 5538 | face = make_realized_face (attrs); |
af53b43c | 5539 | face->ascii_face = face; |
39506348 KH |
5540 | |
5541 | f = cache->f; | |
5542 | ||
82641697 GM |
5543 | /* Determine the font to use. Most of the time, the font will be |
5544 | the same as the font of the default face, so try that first. */ | |
5545 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5546 | if (default_face | |
82641697 GM |
5547 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
5548 | { | |
5549 | face->font = default_face->font; | |
76f54ecc KH |
5550 | face->fontset |
5551 | = make_fontset_for_ascii_face (f, default_face->fontset, face); | |
82641697 GM |
5552 | } |
5553 | else | |
5554 | { | |
39506348 | 5555 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
5556 | the base of a new realized fontset. Otherwise, use the same |
5557 | base fontset as of the default face. The base determines | |
5558 | registry and encoding of a font. It may also determine | |
5559 | foundry and family. The other fields of font name pattern | |
5560 | are constructed from ATTRS. */ | |
5561 | int fontset = face_fontset (attrs); | |
5562 | ||
af53b43c KH |
5563 | /* If we are realizing the default face, ATTRS should specify a |
5564 | fontset. In other words, if FONTSET is -1, we are not | |
5565 | realizing the default face, thus the default face should have | |
5566 | already been realized. */ | |
5567 | if (fontset == -1) | |
d78494f9 CY |
5568 | { |
5569 | if (default_face) | |
5570 | fontset = default_face->fontset; | |
5571 | if (fontset == -1) | |
5572 | abort (); | |
5573 | } | |
2dee4c0b KH |
5574 | if (! FONT_OBJECT_P (attrs[LFACE_FONT_INDEX])) |
5575 | attrs[LFACE_FONT_INDEX] | |
5576 | = font_load_for_lface (f, attrs, attrs[LFACE_FONT_INDEX]); | |
5577 | if (FONT_OBJECT_P (attrs[LFACE_FONT_INDEX])) | |
5578 | { | |
5579 | face->font = XFONT_OBJECT (attrs[LFACE_FONT_INDEX]); | |
5580 | face->fontset = make_fontset_for_ascii_face (f, fontset, face); | |
5581 | } | |
426b2119 | 5582 | else |
2dee4c0b KH |
5583 | { |
5584 | face->font = NULL; | |
5585 | face->fontset = -1; | |
5586 | } | |
82641697 GM |
5587 | } |
5588 | ||
2dee4c0b KH |
5589 | if (face->font |
5590 | && FONT_WEIGHT_NAME_NUMERIC (attrs[LFACE_WEIGHT_INDEX]) > 100 | |
5591 | && FONT_WEIGHT_NUMERIC (attrs[LFACE_FONT_INDEX]) <= 100) | |
5592 | face->overstrike = 1; | |
5593 | ||
82641697 | 5594 | /* Load colors, and set remaining attributes. */ |
178c5d9c | 5595 | |
82641697 | 5596 | load_face_colors (f, face, attrs); |
660ed669 | 5597 | |
82641697 GM |
5598 | /* Set up box. */ |
5599 | box = attrs[LFACE_BOX_INDEX]; | |
5600 | if (STRINGP (box)) | |
cb637678 | 5601 | { |
82641697 GM |
5602 | /* A simple box of line width 1 drawn in color given by |
5603 | the string. */ | |
5604 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5605 | LFACE_BOX_INDEX); | |
5606 | face->box = FACE_SIMPLE_BOX; | |
5607 | face->box_line_width = 1; | |
cb637678 | 5608 | } |
82641697 | 5609 | else if (INTEGERP (box)) |
42120bc7 | 5610 | { |
82641697 GM |
5611 | /* Simple box of specified line width in foreground color of the |
5612 | face. */ | |
89624b8b | 5613 | xassert (XINT (box) != 0); |
82641697 | 5614 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 5615 | face->box_line_width = XINT (box); |
82641697 GM |
5616 | face->box_color = face->foreground; |
5617 | face->box_color_defaulted_p = 1; | |
5618 | } | |
5619 | else if (CONSP (box)) | |
5620 | { | |
5621 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5622 | being one of `raised' or `sunken'. */ | |
5623 | face->box = FACE_SIMPLE_BOX; | |
5624 | face->box_color = face->foreground; | |
5625 | face->box_color_defaulted_p = 1; | |
5626 | face->box_line_width = 1; | |
5627 | ||
5628 | while (CONSP (box)) | |
42120bc7 | 5629 | { |
82641697 GM |
5630 | Lisp_Object keyword, value; |
5631 | ||
5632 | keyword = XCAR (box); | |
5633 | box = XCDR (box); | |
5634 | ||
5635 | if (!CONSP (box)) | |
5636 | break; | |
5637 | value = XCAR (box); | |
5638 | box = XCDR (box); | |
5639 | ||
5640 | if (EQ (keyword, QCline_width)) | |
5641 | { | |
89624b8b KH |
5642 | if (INTEGERP (value) && XINT (value) != 0) |
5643 | face->box_line_width = XINT (value); | |
82641697 GM |
5644 | } |
5645 | else if (EQ (keyword, QCcolor)) | |
5646 | { | |
5647 | if (STRINGP (value)) | |
5648 | { | |
5649 | face->box_color = load_color (f, face, value, | |
5650 | LFACE_BOX_INDEX); | |
5651 | face->use_box_color_for_shadows_p = 1; | |
5652 | } | |
5653 | } | |
5654 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5655 | { |
82641697 GM |
5656 | if (EQ (value, Qreleased_button)) |
5657 | face->box = FACE_RAISED_BOX; | |
5658 | else if (EQ (value, Qpressed_button)) | |
5659 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5660 | } |
42120bc7 RS |
5661 | } |
5662 | } | |
195f798e | 5663 | |
82641697 | 5664 | /* Text underline, overline, strike-through. */ |
178c5d9c | 5665 | |
82641697 | 5666 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 5667 | { |
82641697 GM |
5668 | /* Use default color (same as foreground color). */ |
5669 | face->underline_p = 1; | |
5670 | face->underline_defaulted_p = 1; | |
5671 | face->underline_color = 0; | |
5672 | } | |
5673 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 5674 | { |
82641697 GM |
5675 | /* Use specified color. */ |
5676 | face->underline_p = 1; | |
5677 | face->underline_defaulted_p = 0; | |
5678 | face->underline_color | |
5679 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
5680 | LFACE_UNDERLINE_INDEX); | |
195f798e | 5681 | } |
82641697 | 5682 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 5683 | { |
82641697 GM |
5684 | face->underline_p = 0; |
5685 | face->underline_defaulted_p = 0; | |
5686 | face->underline_color = 0; | |
7b00de84 JB |
5687 | } |
5688 | ||
82641697 GM |
5689 | overline = attrs[LFACE_OVERLINE_INDEX]; |
5690 | if (STRINGP (overline)) | |
cb637678 | 5691 | { |
82641697 GM |
5692 | face->overline_color |
5693 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
5694 | LFACE_OVERLINE_INDEX); | |
5695 | face->overline_p = 1; | |
cb637678 | 5696 | } |
82641697 | 5697 | else if (EQ (overline, Qt)) |
cb637678 | 5698 | { |
82641697 GM |
5699 | face->overline_color = face->foreground; |
5700 | face->overline_color_defaulted_p = 1; | |
5701 | face->overline_p = 1; | |
cb637678 JB |
5702 | } |
5703 | ||
82641697 GM |
5704 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
5705 | if (STRINGP (strike_through)) | |
5706 | { | |
5707 | face->strike_through_color | |
5708 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5709 | LFACE_STRIKE_THROUGH_INDEX); | |
5710 | face->strike_through_p = 1; | |
5711 | } | |
5712 | else if (EQ (strike_through, Qt)) | |
5713 | { | |
5714 | face->strike_through_color = face->foreground; | |
5715 | face->strike_through_color_defaulted_p = 1; | |
5716 | face->strike_through_p = 1; | |
5717 | } | |
867dd159 | 5718 | |
82641697 GM |
5719 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
5720 | if (!NILP (stipple)) | |
5721 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
c3cee013 | 5722 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 | 5723 | |
82641697 | 5724 | return face; |
660ed669 JB |
5725 | } |
5726 | ||
729425b1 | 5727 | |
ae4b4ba5 GM |
5728 | /* Map a specified color of face FACE on frame F to a tty color index. |
5729 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
5730 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
5731 | default foreground/background colors. */ | |
5732 | ||
5733 | static void | |
971de7fb | 5734 | map_tty_color (struct frame *f, struct face *face, enum lface_attribute_index idx, int *defaulted) |
ae4b4ba5 GM |
5735 | { |
5736 | Lisp_Object frame, color, def; | |
5737 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
a5a62657 PE |
5738 | unsigned long default_pixel = |
5739 | foreground_p ? FACE_TTY_DEFAULT_FG_COLOR : FACE_TTY_DEFAULT_BG_COLOR; | |
5740 | unsigned long pixel = default_pixel; | |
5741 | #ifdef MSDOS | |
5742 | unsigned long default_other_pixel = | |
5743 | foreground_p ? FACE_TTY_DEFAULT_BG_COLOR : FACE_TTY_DEFAULT_FG_COLOR; | |
5744 | #endif | |
ae4b4ba5 GM |
5745 | |
5746 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
5747 | ||
ae4b4ba5 GM |
5748 | XSETFRAME (frame, f); |
5749 | color = face->lface[idx]; | |
177c0ea7 | 5750 | |
ae4b4ba5 | 5751 | if (STRINGP (color) |
d5db4077 | 5752 | && SCHARS (color) |
ae4b4ba5 GM |
5753 | && CONSP (Vtty_defined_color_alist) |
5754 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
5755 | CONSP (def))) | |
5756 | { | |
5757 | /* Associations in tty-defined-color-alist are of the form | |
5758 | (NAME INDEX R G B). We need the INDEX part. */ | |
5759 | pixel = XINT (XCAR (XCDR (def))); | |
5760 | } | |
5761 | ||
5762 | if (pixel == default_pixel && STRINGP (color)) | |
5763 | { | |
5764 | pixel = load_color (f, face, color, idx); | |
5765 | ||
8d05ec51 | 5766 | #ifdef MSDOS |
ae4b4ba5 GM |
5767 | /* If the foreground of the default face is the default color, |
5768 | use the foreground color defined by the frame. */ | |
ae4b4ba5 GM |
5769 | if (FRAME_MSDOS_P (f)) |
5770 | { | |
ae4b4ba5 GM |
5771 | if (pixel == default_pixel |
5772 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
5773 | { | |
5774 | if (foreground_p) | |
5775 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
5776 | else | |
5777 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
5778 | face->lface[idx] = tty_color_name (f, pixel); | |
5779 | *defaulted = 1; | |
5780 | } | |
5781 | else if (pixel == default_other_pixel) | |
5782 | { | |
5783 | if (foreground_p) | |
5784 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
5785 | else | |
5786 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
5787 | face->lface[idx] = tty_color_name (f, pixel); | |
5788 | *defaulted = 1; | |
5789 | } | |
8d05ec51 JR |
5790 | } |
5791 | #endif /* MSDOS */ | |
ae4b4ba5 GM |
5792 | } |
5793 | ||
5794 | if (foreground_p) | |
5795 | face->foreground = pixel; | |
5796 | else | |
5797 | face->background = pixel; | |
5798 | } | |
5799 | ||
5800 | ||
82641697 | 5801 | /* Realize the fully-specified face with attributes ATTRS in face |
af53b43c KH |
5802 | cache CACHE for ASCII characters. Do it for TTY frame CACHE->f. |
5803 | Value is a pointer to the newly created realized face. */ | |
a8517066 | 5804 | |
82641697 | 5805 | static struct face * |
971de7fb | 5806 | realize_tty_face (struct face_cache *cache, Lisp_Object *attrs) |
82641697 GM |
5807 | { |
5808 | struct face *face; | |
5809 | int weight, slant; | |
2d764c78 | 5810 | int face_colors_defaulted = 0; |
ae4b4ba5 | 5811 | struct frame *f = cache->f; |
729425b1 | 5812 | |
82641697 | 5813 | /* Frame must be a termcap frame. */ |
e689ec06 | 5814 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 5815 | |
82641697 | 5816 | /* Allocate a new realized face. */ |
39506348 | 5817 | face = make_realized_face (attrs); |
2dee4c0b | 5818 | #if 0 |
e689ec06 | 5819 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
2dee4c0b | 5820 | #endif |
82641697 | 5821 | |
178c5d9c | 5822 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
5823 | dimmed text because we want italic text to appear differently |
5824 | and because dimmed text is probably used infrequently. */ | |
2dee4c0b KH |
5825 | weight = FONT_WEIGHT_NAME_NUMERIC (attrs[LFACE_WEIGHT_INDEX]); |
5826 | slant = FONT_SLANT_NAME_NUMERIC (attrs[LFACE_SLANT_INDEX]); | |
5827 | if (weight > 100) | |
82641697 | 5828 | face->tty_bold_p = 1; |
2dee4c0b | 5829 | if (weight < 100 || slant != 100) |
82641697 GM |
5830 | face->tty_dim_p = 1; |
5831 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
5832 | face->tty_underline_p = 1; | |
5833 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
5834 | face->tty_reverse_p = 1; | |
5835 | ||
5836 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
5837 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
5838 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 5839 | |
2d764c78 EZ |
5840 | /* Swap colors if face is inverse-video. If the colors are taken |
5841 | from the frame colors, they are already inverted, since the | |
5842 | frame-creation function calls x-handle-reverse-video. */ | |
5843 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
5844 | { |
5845 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
5846 | face->foreground = face->background; |
5847 | face->background = tem; | |
5848 | } | |
44747bd0 | 5849 | |
a4a76b61 GM |
5850 | if (tty_suppress_bold_inverse_default_colors_p |
5851 | && face->tty_bold_p | |
5852 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
5853 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
5854 | face->tty_bold_p = 0; | |
5855 | ||
82641697 | 5856 | return face; |
729425b1 | 5857 | } |
867dd159 | 5858 | |
82641697 | 5859 | |
a4a76b61 GM |
5860 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
5861 | Ftty_suppress_bold_inverse_default_colors, | |
5862 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 5863 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
5864 | SUPPRESS non-nil means suppress it. |
5865 | This affects bold faces on TTYs whose foreground is the default background | |
5866 | color of the display and whose background is the default foreground color. | |
5867 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 | 5868 | is non-nil. */) |
5842a27b | 5869 | (Lisp_Object suppress) |
a4a76b61 GM |
5870 | { |
5871 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
5872 | ++face_change_count; | |
5873 | return suppress; | |
5874 | } | |
5875 | ||
5876 | ||
82641697 GM |
5877 | \f |
5878 | /*********************************************************************** | |
5879 | Computing Faces | |
5880 | ***********************************************************************/ | |
5881 | ||
5882 | /* Return the ID of the face to use to display character CH with face | |
5883 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
5884 | |
5885 | int | |
971de7fb | 5886 | compute_char_face (struct frame *f, int ch, Lisp_Object prop) |
2e16580f | 5887 | { |
82641697 | 5888 | int face_id; |
39506348 | 5889 | |
4b4deea2 | 5890 | if (NILP (BVAR (current_buffer, enable_multibyte_characters))) |
522d42f7 | 5891 | ch = 0; |
178c5d9c | 5892 | |
82641697 | 5893 | if (NILP (prop)) |
39506348 KH |
5894 | { |
5895 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
779c6fb6 | 5896 | face_id = FACE_FOR_CHAR (f, face, ch, -1, Qnil); |
39506348 | 5897 | } |
82641697 | 5898 | else |
2e16580f | 5899 | { |
82641697 GM |
5900 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
5901 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
72af86bd | 5902 | memcpy (attrs, default_face->lface, sizeof attrs); |
a0a23346 | 5903 | merge_face_ref (f, prop, attrs, 1, 0); |
af53b43c | 5904 | face_id = lookup_face (f, attrs); |
2e16580f RS |
5905 | } |
5906 | ||
82641697 | 5907 | return face_id; |
2e16580f | 5908 | } |
bc0db68d | 5909 | |
82641697 GM |
5910 | /* Return the face ID associated with buffer position POS for |
5911 | displaying ASCII characters. Return in *ENDPTR the position at | |
5912 | which a different face is needed, as far as text properties and | |
5913 | overlays are concerned. W is a window displaying current_buffer. | |
5914 | ||
5915 | REGION_BEG, REGION_END delimit the region, so it can be | |
5916 | highlighted. | |
6f134486 | 5917 | |
82641697 GM |
5918 | LIMIT is a position not to scan beyond. That is to limit the time |
5919 | this function can take. | |
5920 | ||
5921 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
5922 | ||
6970f632 CY |
5923 | BASE_FACE_ID, if non-negative, specifies a base face id to use |
5924 | instead of DEFAULT_FACE_ID. | |
5925 | ||
39506348 | 5926 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 5927 | |
cb637678 | 5928 | int |
d5a3eaaf AS |
5929 | face_at_buffer_position (struct window *w, EMACS_INT pos, |
5930 | EMACS_INT region_beg, EMACS_INT region_end, | |
5931 | EMACS_INT *endptr, EMACS_INT limit, | |
5932 | int mouse, int base_face_id) | |
7b7739b1 | 5933 | { |
82641697 GM |
5934 | struct frame *f = XFRAME (w->frame); |
5935 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 5936 | Lisp_Object prop, position; |
82641697 | 5937 | int i, noverlays; |
7b7739b1 | 5938 | Lisp_Object *overlay_vec; |
f211082d | 5939 | Lisp_Object frame; |
0f8b27ea | 5940 | EMACS_INT endpos; |
82641697 GM |
5941 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
5942 | Lisp_Object limit1, end; | |
5943 | struct face *default_face; | |
f6b98e0b JB |
5944 | |
5945 | /* W must display the current buffer. We could write this function | |
5946 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 5947 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 5948 | |
ac22a6c4 | 5949 | XSETFRAME (frame, f); |
82641697 | 5950 | XSETFASTINT (position, pos); |
7b7739b1 | 5951 | |
f6b98e0b | 5952 | endpos = ZV; |
bc0db68d RS |
5953 | if (pos < region_beg && region_beg < endpos) |
5954 | endpos = region_beg; | |
f6b98e0b | 5955 | |
82641697 GM |
5956 | /* Get the `face' or `mouse_face' text property at POS, and |
5957 | determine the next position at which the property changes. */ | |
6f134486 | 5958 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
5959 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
5960 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
5961 | if (INTEGERP (end)) | |
5962 | endpos = XINT (end); | |
6f134486 | 5963 | |
82641697 | 5964 | /* Look at properties from overlays. */ |
b6d40e46 | 5965 | { |
a2bc5bdd | 5966 | EMACS_INT next_overlay; |
b6d40e46 | 5967 | |
0bc90bba | 5968 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
5969 | if (next_overlay < endpos) |
5970 | endpos = next_overlay; | |
b6d40e46 JB |
5971 | } |
5972 | ||
5973 | *endptr = endpos; | |
7b7739b1 | 5974 | |
6970f632 CY |
5975 | default_face = FACE_FROM_ID (f, base_face_id >= 0 ? base_face_id |
5976 | : NILP (Vface_remapping_alist) ? DEFAULT_FACE_ID | |
5977 | : lookup_basic_face (f, DEFAULT_FACE_ID)); | |
178c5d9c | 5978 | |
82641697 GM |
5979 | /* Optimize common cases where we can use the default face. */ |
5980 | if (noverlays == 0 | |
5981 | && NILP (prop) | |
39506348 | 5982 | && !(pos >= region_beg && pos < region_end)) |
f2cec7a9 | 5983 | return default_face->id; |
82641697 GM |
5984 | |
5985 | /* Begin with attributes from the default face. */ | |
72af86bd | 5986 | memcpy (attrs, default_face->lface, sizeof attrs); |
82641697 GM |
5987 | |
5988 | /* Merge in attributes specified via text properties. */ | |
5989 | if (!NILP (prop)) | |
a0a23346 | 5990 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
5991 | |
5992 | /* Now merge the overlay data. */ | |
18195655 | 5993 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 5994 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 5995 | { |
18195655 RS |
5996 | Lisp_Object oend; |
5997 | int oendpos; | |
5998 | ||
5999 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 6000 | if (!NILP (prop)) |
a0a23346 | 6001 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
6002 | |
6003 | oend = OVERLAY_END (overlay_vec[i]); | |
6004 | oendpos = OVERLAY_POSITION (oend); | |
6005 | if (oendpos < endpos) | |
6006 | endpos = oendpos; | |
6007 | } | |
6008 | ||
82641697 | 6009 | /* If in the region, merge in the region face. */ |
18195655 RS |
6010 | if (pos >= region_beg && pos < region_end) |
6011 | { | |
a0a23346 | 6012 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 6013 | |
18195655 RS |
6014 | if (region_end < endpos) |
6015 | endpos = region_end; | |
18195655 RS |
6016 | } |
6017 | ||
6018 | *endptr = endpos; | |
6019 | ||
82641697 | 6020 | /* Look up a realized face with the given face attributes, |
39506348 | 6021 | or realize a new one for ASCII characters. */ |
af53b43c | 6022 | return lookup_face (f, attrs); |
18195655 RS |
6023 | } |
6024 | ||
a193ecf1 RS |
6025 | /* Return the face ID at buffer position POS for displaying ASCII |
6026 | characters associated with overlay strings for overlay OVERLAY. | |
6027 | ||
6028 | Like face_at_buffer_position except for OVERLAY. Currently it | |
6029 | simply disregards the `face' properties of all overlays. */ | |
03e1d617 RS |
6030 | |
6031 | int | |
d5a3eaaf AS |
6032 | face_for_overlay_string (struct window *w, EMACS_INT pos, |
6033 | EMACS_INT region_beg, EMACS_INT region_end, | |
6034 | EMACS_INT *endptr, EMACS_INT limit, | |
6035 | int mouse, Lisp_Object overlay) | |
03e1d617 RS |
6036 | { |
6037 | struct frame *f = XFRAME (w->frame); | |
6038 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6039 | Lisp_Object prop, position; | |
03e1d617 RS |
6040 | Lisp_Object frame; |
6041 | int endpos; | |
6042 | Lisp_Object propname = mouse ? Qmouse_face : Qface; | |
6043 | Lisp_Object limit1, end; | |
6044 | struct face *default_face; | |
6045 | ||
6046 | /* W must display the current buffer. We could write this function | |
6047 | to use the frame and buffer of W, but right now it doesn't. */ | |
6048 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ | |
6049 | ||
6050 | XSETFRAME (frame, f); | |
6051 | XSETFASTINT (position, pos); | |
6052 | ||
6053 | endpos = ZV; | |
6054 | if (pos < region_beg && region_beg < endpos) | |
6055 | endpos = region_beg; | |
6056 | ||
6057 | /* Get the `face' or `mouse_face' text property at POS, and | |
6058 | determine the next position at which the property changes. */ | |
6059 | prop = Fget_text_property (position, propname, w->buffer); | |
6060 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); | |
6061 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6062 | if (INTEGERP (end)) | |
6063 | endpos = XINT (end); | |
6064 | ||
6065 | *endptr = endpos; | |
6066 | ||
6067 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6068 | ||
6069 | /* Optimize common cases where we can use the default face. */ | |
6070 | if (NILP (prop) | |
6071 | && !(pos >= region_beg && pos < region_end)) | |
6072 | return DEFAULT_FACE_ID; | |
6073 | ||
6074 | /* Begin with attributes from the default face. */ | |
72af86bd | 6075 | memcpy (attrs, default_face->lface, sizeof attrs); |
03e1d617 RS |
6076 | |
6077 | /* Merge in attributes specified via text properties. */ | |
6078 | if (!NILP (prop)) | |
6079 | merge_face_ref (f, prop, attrs, 1, 0); | |
6080 | ||
6081 | /* If in the region, merge in the region face. */ | |
6082 | if (pos >= region_beg && pos < region_end) | |
6083 | { | |
6084 | merge_named_face (f, Qregion, attrs, 0); | |
6085 | ||
6086 | if (region_end < endpos) | |
6087 | endpos = region_end; | |
6088 | } | |
6089 | ||
6090 | *endptr = endpos; | |
6091 | ||
6092 | /* Look up a realized face with the given face attributes, | |
6093 | or realize a new one for ASCII characters. */ | |
ce9c2e7b | 6094 | return lookup_face (f, attrs); |
03e1d617 RS |
6095 | } |
6096 | ||
60573a90 | 6097 | |
82641697 | 6098 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6099 | window W, for ASCII characters. |
7b7739b1 | 6100 | |
82641697 GM |
6101 | If STRING is an overlay string, it comes from position BUFPOS in |
6102 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6103 | not an overlay string. W must display the current buffer. | |
6104 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
6105 | region; both are -1 if no region is visible. |
6106 | ||
6107 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
6108 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 6109 | |
48a4ca99 GM |
6110 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
6111 | ||
82641697 GM |
6112 | Set *ENDPTR to the next position where to check for faces in |
6113 | STRING; -1 if the face is constant from POS to the end of the | |
6114 | string. | |
18195655 | 6115 | |
82641697 | 6116 | Value is the id of the face to use. The face returned is suitable |
39506348 | 6117 | for displaying ASCII characters. */ |
fffc2367 | 6118 | |
82641697 | 6119 | int |
d5a3eaaf AS |
6120 | face_at_string_position (struct window *w, Lisp_Object string, |
6121 | EMACS_INT pos, EMACS_INT bufpos, | |
6122 | EMACS_INT region_beg, EMACS_INT region_end, | |
6123 | EMACS_INT *endptr, enum face_id base_face_id, | |
6124 | int mouse_p) | |
660ed669 | 6125 | { |
82641697 GM |
6126 | Lisp_Object prop, position, end, limit; |
6127 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6128 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6129 | struct face *base_face; | |
6130 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 6131 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
6132 | |
6133 | /* Get the value of the face property at the current position within | |
6134 | STRING. Value is nil if there is no face property. */ | |
6135 | XSETFASTINT (position, pos); | |
48a4ca99 | 6136 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
6137 | |
6138 | /* Get the next position at which to check for faces. Value of end | |
6139 | is nil if face is constant all the way to the end of the string. | |
6140 | Otherwise it is a string position where to check faces next. | |
6141 | Limit is the maximum position up to which to check for property | |
6142 | changes in Fnext_single_property_change. Strings are usually | |
6143 | short, so set the limit to the end of the string. */ | |
d5db4077 | 6144 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 6145 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
6146 | if (INTEGERP (end)) |
6147 | *endptr = XFASTINT (end); | |
6148 | else | |
6149 | *endptr = -1; | |
6150 | ||
6151 | base_face = FACE_FROM_ID (f, base_face_id); | |
6152 | xassert (base_face); | |
6153 | ||
6154 | /* Optimize the default case that there is no face property and we | |
6155 | are not in the region. */ | |
6156 | if (NILP (prop) | |
6157 | && (base_face_id != DEFAULT_FACE_ID | |
6158 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6159 | that the region doesn't have to be taken into account. */ | |
6160 | || bufpos <= 0 | |
6161 | || bufpos < region_beg | |
6162 | || bufpos >= region_end) | |
6163 | && (multibyte_p | |
6164 | /* We can't realize faces for different charsets differently | |
6165 | if we don't have fonts, so we can stop here if not working | |
6166 | on a window-system frame. */ | |
6167 | || !FRAME_WINDOW_P (f) | |
239f9db9 | 6168 | || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face, 0))) |
82641697 GM |
6169 | return base_face->id; |
6170 | ||
6171 | /* Begin with attributes from the base face. */ | |
72af86bd | 6172 | memcpy (attrs, base_face->lface, sizeof attrs); |
82641697 GM |
6173 | |
6174 | /* Merge in attributes specified via text properties. */ | |
6175 | if (!NILP (prop)) | |
a0a23346 | 6176 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
6177 | |
6178 | /* If in the region, merge in the region face. */ | |
6179 | if (bufpos | |
6180 | && bufpos >= region_beg | |
6181 | && bufpos < region_end) | |
a0a23346 | 6182 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 6183 | |
82641697 | 6184 | /* Look up a realized face with the given face attributes, |
39506348 | 6185 | or realize a new one for ASCII characters. */ |
af53b43c | 6186 | return lookup_face (f, attrs); |
660ed669 JB |
6187 | } |
6188 | ||
6189 | ||
fd998c7f KS |
6190 | /* Merge a face into a realized face. |
6191 | ||
6192 | F is frame where faces are (to be) realized. | |
6193 | ||
dc91a0ed KS |
6194 | FACE_NAME is named face to merge. |
6195 | ||
6196 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
6197 | ||
6198 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
6199 | |
6200 | BASE_FACE_ID is realized face to merge into. | |
6201 | ||
dc91a0ed | 6202 | Return new face id. |
fd998c7f KS |
6203 | */ |
6204 | ||
6205 | int | |
9910e595 PE |
6206 | merge_faces (struct frame *f, Lisp_Object face_name, EMACS_INT face_id, |
6207 | int base_face_id) | |
fd998c7f KS |
6208 | { |
6209 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6210 | struct face *base_face; | |
6211 | ||
6212 | base_face = FACE_FROM_ID (f, base_face_id); | |
6213 | if (!base_face) | |
6214 | return base_face_id; | |
6215 | ||
dc91a0ed KS |
6216 | if (EQ (face_name, Qt)) |
6217 | { | |
6218 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
6219 | return base_face_id; | |
6220 | face_name = lface_id_to_name[face_id]; | |
d8453278 CY |
6221 | /* When called during make-frame, lookup_derived_face may fail |
6222 | if the faces are uninitialized. Don't signal an error. */ | |
6223 | face_id = lookup_derived_face (f, face_name, base_face_id, 0); | |
6224 | return (face_id >= 0 ? face_id : base_face_id); | |
dc91a0ed KS |
6225 | } |
6226 | ||
fd998c7f | 6227 | /* Begin with attributes from the base face. */ |
72af86bd | 6228 | memcpy (attrs, base_face->lface, sizeof attrs); |
fd998c7f KS |
6229 | |
6230 | if (!NILP (face_name)) | |
6231 | { | |
6232 | if (!merge_named_face (f, face_name, attrs, 0)) | |
6233 | return base_face_id; | |
6234 | } | |
6235 | else | |
6236 | { | |
6237 | struct face *face; | |
dc91a0ed KS |
6238 | if (face_id < 0) |
6239 | return base_face_id; | |
fd998c7f KS |
6240 | face = FACE_FROM_ID (f, face_id); |
6241 | if (!face) | |
6242 | return base_face_id; | |
6243 | merge_face_vectors (f, face->lface, attrs, 0); | |
6244 | } | |
6245 | ||
6246 | /* Look up a realized face with the given face attributes, | |
6247 | or realize a new one for ASCII characters. */ | |
0e3ae538 | 6248 | return lookup_face (f, attrs); |
fd998c7f KS |
6249 | } |
6250 | ||
c115973b | 6251 | \f |
7ded3383 AR |
6252 | |
6253 | #ifndef HAVE_X_WINDOWS | |
6254 | DEFUN ("x-load-color-file", Fx_load_color_file, | |
6255 | Sx_load_color_file, 1, 1, 0, | |
6256 | doc: /* Create an alist of color entries from an external file. | |
6257 | ||
6258 | The file should define one named RGB color per line like so: | |
6259 | R G B name | |
6260 | where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */) | |
5842a27b | 6261 | (Lisp_Object filename) |
7ded3383 AR |
6262 | { |
6263 | FILE *fp; | |
6264 | Lisp_Object cmap = Qnil; | |
6265 | Lisp_Object abspath; | |
6266 | ||
6267 | CHECK_STRING (filename); | |
6268 | abspath = Fexpand_file_name (filename, Qnil); | |
6269 | ||
45763476 | 6270 | fp = fopen (SDATA (abspath), "rt"); |
7ded3383 AR |
6271 | if (fp) |
6272 | { | |
6273 | char buf[512]; | |
6274 | int red, green, blue; | |
6275 | int num; | |
6276 | ||
6277 | BLOCK_INPUT; | |
6278 | ||
6279 | while (fgets (buf, sizeof (buf), fp) != NULL) { | |
6280 | if (sscanf (buf, "%u %u %u %n", &red, &green, &blue, &num) == 3) | |
6281 | { | |
6282 | char *name = buf + num; | |
6283 | num = strlen (name) - 1; | |
40aa3f13 | 6284 | if (num >= 0 && name[num] == '\n') |
7ded3383 AR |
6285 | name[num] = 0; |
6286 | cmap = Fcons (Fcons (build_string (name), | |
dee8cd43 JB |
6287 | #ifdef WINDOWSNT |
6288 | make_number (RGB (red, green, blue))), | |
ebadbfa6 | 6289 | #else |
dee8cd43 | 6290 | make_number ((red << 16) | (green << 8) | blue)), |
ebadbfa6 | 6291 | #endif |
7ded3383 AR |
6292 | cmap); |
6293 | } | |
6294 | } | |
6295 | fclose (fp); | |
6296 | ||
6297 | UNBLOCK_INPUT; | |
6298 | } | |
6299 | ||
6300 | return cmap; | |
6301 | } | |
6302 | #endif | |
6303 | ||
6304 | \f | |
82641697 GM |
6305 | /*********************************************************************** |
6306 | Tests | |
6307 | ***********************************************************************/ | |
c115973b | 6308 | |
82641697 | 6309 | #if GLYPH_DEBUG |
c115973b | 6310 | |
82641697 | 6311 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6312 | |
82641697 | 6313 | static void |
7d7d0045 | 6314 | dump_realized_face (struct face *face) |
82641697 GM |
6315 | { |
6316 | fprintf (stderr, "ID: %d\n", face->id); | |
6317 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 6318 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
6319 | #endif |
6320 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6321 | face->foreground, | |
d5db4077 | 6322 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
6323 | fprintf (stderr, "background: 0x%lx (%s)\n", |
6324 | face->background, | |
d5db4077 | 6325 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
2dee4c0b KH |
6326 | if (face->font) |
6327 | fprintf (stderr, "font_name: %s (%s)\n", | |
6328 | SDATA (face->font->props[FONT_NAME_INDEX]), | |
6329 | SDATA (face->lface[LFACE_FAMILY_INDEX])); | |
82641697 GM |
6330 | #ifdef HAVE_X_WINDOWS |
6331 | fprintf (stderr, "font = %p\n", face->font); | |
6332 | #endif | |
82641697 GM |
6333 | fprintf (stderr, "fontset: %d\n", face->fontset); |
6334 | fprintf (stderr, "underline: %d (%s)\n", | |
6335 | face->underline_p, | |
d5db4077 | 6336 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 | 6337 | fprintf (stderr, "hash: %d\n", face->hash); |
c115973b JB |
6338 | } |
6339 | ||
6340 | ||
a7ca3326 | 6341 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
5842a27b | 6342 | (Lisp_Object n) |
c115973b | 6343 | { |
82641697 | 6344 | if (NILP (n)) |
c115973b | 6345 | { |
82641697 | 6346 | int i; |
178c5d9c | 6347 | |
82641697 GM |
6348 | fprintf (stderr, "font selection order: "); |
6349 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6350 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6351 | fprintf (stderr, "\n"); | |
6352 | ||
6353 | fprintf (stderr, "alternative fonts: "); | |
6354 | debug_print (Vface_alternative_font_family_alist); | |
6355 | fprintf (stderr, "\n"); | |
178c5d9c | 6356 | |
c0617987 | 6357 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6358 | Fdump_face (make_number (i)); |
c115973b JB |
6359 | } |
6360 | else | |
f5e278c7 | 6361 | { |
82641697 | 6362 | struct face *face; |
b7826503 | 6363 | CHECK_NUMBER (n); |
c0617987 | 6364 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6365 | if (face == NULL) |
6366 | error ("Not a valid face"); | |
6367 | dump_realized_face (face); | |
f5e278c7 | 6368 | } |
178c5d9c | 6369 | |
c115973b JB |
6370 | return Qnil; |
6371 | } | |
b5c53576 | 6372 | |
b5c53576 | 6373 | |
a7ca3326 | 6374 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 | 6375 | 0, 0, 0, doc: /* */) |
5842a27b | 6376 | (void) |
b5c53576 | 6377 | { |
82641697 GM |
6378 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6379 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6380 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6381 | return Qnil; | |
b5c53576 RS |
6382 | } |
6383 | ||
82641697 GM |
6384 | #endif /* GLYPH_DEBUG != 0 */ |
6385 | ||
b5c53576 | 6386 | |
c115973b | 6387 | \f |
82641697 GM |
6388 | /*********************************************************************** |
6389 | Initialization | |
6390 | ***********************************************************************/ | |
cb637678 | 6391 | |
c115973b | 6392 | void |
971de7fb | 6393 | syms_of_xfaces (void) |
c115973b | 6394 | { |
d67b4f80 | 6395 | Qface = intern_c_string ("face"); |
f211082d | 6396 | staticpro (&Qface); |
d67b4f80 | 6397 | Qface_no_inherit = intern_c_string ("face-no-inherit"); |
46b00436 | 6398 | staticpro (&Qface_no_inherit); |
d67b4f80 | 6399 | Qbitmap_spec_p = intern_c_string ("bitmap-spec-p"); |
fef04523 | 6400 | staticpro (&Qbitmap_spec_p); |
d67b4f80 | 6401 | Qframe_set_background_mode = intern_c_string ("frame-set-background-mode"); |
c20577bc | 6402 | staticpro (&Qframe_set_background_mode); |
178c5d9c | 6403 | |
82641697 | 6404 | /* Lisp face attribute keywords. */ |
d67b4f80 | 6405 | QCfamily = intern_c_string (":family"); |
82641697 | 6406 | staticpro (&QCfamily); |
d67b4f80 | 6407 | QCheight = intern_c_string (":height"); |
82641697 | 6408 | staticpro (&QCheight); |
d67b4f80 | 6409 | QCweight = intern_c_string (":weight"); |
82641697 | 6410 | staticpro (&QCweight); |
d67b4f80 | 6411 | QCslant = intern_c_string (":slant"); |
82641697 | 6412 | staticpro (&QCslant); |
d67b4f80 | 6413 | QCunderline = intern_c_string (":underline"); |
82641697 | 6414 | staticpro (&QCunderline); |
d67b4f80 | 6415 | QCinverse_video = intern_c_string (":inverse-video"); |
178c5d9c | 6416 | staticpro (&QCinverse_video); |
d67b4f80 | 6417 | QCreverse_video = intern_c_string (":reverse-video"); |
82641697 | 6418 | staticpro (&QCreverse_video); |
d67b4f80 | 6419 | QCforeground = intern_c_string (":foreground"); |
82641697 | 6420 | staticpro (&QCforeground); |
d67b4f80 | 6421 | QCbackground = intern_c_string (":background"); |
82641697 | 6422 | staticpro (&QCbackground); |
d67b4f80 | 6423 | QCstipple = intern_c_string (":stipple"); |
82641697 | 6424 | staticpro (&QCstipple); |
d67b4f80 | 6425 | QCwidth = intern_c_string (":width"); |
82641697 | 6426 | staticpro (&QCwidth); |
d67b4f80 | 6427 | QCfont = intern_c_string (":font"); |
82641697 | 6428 | staticpro (&QCfont); |
d67b4f80 | 6429 | QCfontset = intern_c_string (":fontset"); |
763bc839 | 6430 | staticpro (&QCfontset); |
d67b4f80 | 6431 | QCbold = intern_c_string (":bold"); |
82641697 | 6432 | staticpro (&QCbold); |
d67b4f80 | 6433 | QCitalic = intern_c_string (":italic"); |
82641697 | 6434 | staticpro (&QCitalic); |
d67b4f80 | 6435 | QCoverline = intern_c_string (":overline"); |
82641697 | 6436 | staticpro (&QCoverline); |
d67b4f80 | 6437 | QCstrike_through = intern_c_string (":strike-through"); |
82641697 | 6438 | staticpro (&QCstrike_through); |
d67b4f80 | 6439 | QCbox = intern_c_string (":box"); |
82641697 | 6440 | staticpro (&QCbox); |
d67b4f80 | 6441 | QCinherit = intern_c_string (":inherit"); |
2c20458f | 6442 | staticpro (&QCinherit); |
82641697 GM |
6443 | |
6444 | /* Symbols used for Lisp face attribute values. */ | |
d67b4f80 | 6445 | QCcolor = intern_c_string (":color"); |
82641697 | 6446 | staticpro (&QCcolor); |
d67b4f80 | 6447 | QCline_width = intern_c_string (":line-width"); |
82641697 | 6448 | staticpro (&QCline_width); |
d67b4f80 | 6449 | QCstyle = intern_c_string (":style"); |
82641697 | 6450 | staticpro (&QCstyle); |
d67b4f80 | 6451 | Qreleased_button = intern_c_string ("released-button"); |
82641697 | 6452 | staticpro (&Qreleased_button); |
d67b4f80 | 6453 | Qpressed_button = intern_c_string ("pressed-button"); |
82641697 | 6454 | staticpro (&Qpressed_button); |
d67b4f80 | 6455 | Qnormal = intern_c_string ("normal"); |
82641697 | 6456 | staticpro (&Qnormal); |
d67b4f80 | 6457 | Qultra_light = intern_c_string ("ultra-light"); |
82641697 | 6458 | staticpro (&Qultra_light); |
d67b4f80 | 6459 | Qextra_light = intern_c_string ("extra-light"); |
82641697 | 6460 | staticpro (&Qextra_light); |
d67b4f80 | 6461 | Qlight = intern_c_string ("light"); |
82641697 | 6462 | staticpro (&Qlight); |
d67b4f80 | 6463 | Qsemi_light = intern_c_string ("semi-light"); |
82641697 | 6464 | staticpro (&Qsemi_light); |
d67b4f80 | 6465 | Qsemi_bold = intern_c_string ("semi-bold"); |
82641697 | 6466 | staticpro (&Qsemi_bold); |
d67b4f80 | 6467 | Qbold = intern_c_string ("bold"); |
82641697 | 6468 | staticpro (&Qbold); |
d67b4f80 | 6469 | Qextra_bold = intern_c_string ("extra-bold"); |
82641697 | 6470 | staticpro (&Qextra_bold); |
d67b4f80 | 6471 | Qultra_bold = intern_c_string ("ultra-bold"); |
82641697 | 6472 | staticpro (&Qultra_bold); |
d67b4f80 | 6473 | Qoblique = intern_c_string ("oblique"); |
82641697 | 6474 | staticpro (&Qoblique); |
d67b4f80 | 6475 | Qitalic = intern_c_string ("italic"); |
82641697 | 6476 | staticpro (&Qitalic); |
d67b4f80 | 6477 | Qreverse_oblique = intern_c_string ("reverse-oblique"); |
82641697 | 6478 | staticpro (&Qreverse_oblique); |
d67b4f80 | 6479 | Qreverse_italic = intern_c_string ("reverse-italic"); |
82641697 | 6480 | staticpro (&Qreverse_italic); |
d67b4f80 | 6481 | Qultra_condensed = intern_c_string ("ultra-condensed"); |
82641697 | 6482 | staticpro (&Qultra_condensed); |
d67b4f80 | 6483 | Qextra_condensed = intern_c_string ("extra-condensed"); |
82641697 | 6484 | staticpro (&Qextra_condensed); |
d67b4f80 | 6485 | Qcondensed = intern_c_string ("condensed"); |
82641697 | 6486 | staticpro (&Qcondensed); |
d67b4f80 | 6487 | Qsemi_condensed = intern_c_string ("semi-condensed"); |
82641697 | 6488 | staticpro (&Qsemi_condensed); |
d67b4f80 | 6489 | Qsemi_expanded = intern_c_string ("semi-expanded"); |
82641697 | 6490 | staticpro (&Qsemi_expanded); |
d67b4f80 | 6491 | Qexpanded = intern_c_string ("expanded"); |
82641697 | 6492 | staticpro (&Qexpanded); |
d67b4f80 | 6493 | Qextra_expanded = intern_c_string ("extra-expanded"); |
82641697 | 6494 | staticpro (&Qextra_expanded); |
d67b4f80 | 6495 | Qultra_expanded = intern_c_string ("ultra-expanded"); |
82641697 | 6496 | staticpro (&Qultra_expanded); |
d67b4f80 | 6497 | Qbackground_color = intern_c_string ("background-color"); |
82641697 | 6498 | staticpro (&Qbackground_color); |
d67b4f80 | 6499 | Qforeground_color = intern_c_string ("foreground-color"); |
82641697 | 6500 | staticpro (&Qforeground_color); |
d67b4f80 | 6501 | Qunspecified = intern_c_string ("unspecified"); |
82641697 | 6502 | staticpro (&Qunspecified); |
d67b4f80 | 6503 | Qignore_defface = intern_c_string (":ignore-defface"); |
2ff10663 | 6504 | staticpro (&Qignore_defface); |
82641697 | 6505 | |
d67b4f80 | 6506 | Qface_alias = intern_c_string ("face-alias"); |
92610620 | 6507 | staticpro (&Qface_alias); |
d67b4f80 | 6508 | Qdefault = intern_c_string ("default"); |
82641697 | 6509 | staticpro (&Qdefault); |
d67b4f80 | 6510 | Qtool_bar = intern_c_string ("tool-bar"); |
9ea173e8 | 6511 | staticpro (&Qtool_bar); |
d67b4f80 | 6512 | Qregion = intern_c_string ("region"); |
82641697 | 6513 | staticpro (&Qregion); |
d67b4f80 | 6514 | Qfringe = intern_c_string ("fringe"); |
8bd201d6 | 6515 | staticpro (&Qfringe); |
d67b4f80 | 6516 | Qheader_line = intern_c_string ("header-line"); |
045dee35 | 6517 | staticpro (&Qheader_line); |
d67b4f80 | 6518 | Qscroll_bar = intern_c_string ("scroll-bar"); |
8bd201d6 | 6519 | staticpro (&Qscroll_bar); |
d67b4f80 | 6520 | Qmenu = intern_c_string ("menu"); |
c7ae3284 | 6521 | staticpro (&Qmenu); |
d67b4f80 | 6522 | Qcursor = intern_c_string ("cursor"); |
8bd201d6 | 6523 | staticpro (&Qcursor); |
d67b4f80 | 6524 | Qborder = intern_c_string ("border"); |
8bd201d6 | 6525 | staticpro (&Qborder); |
d67b4f80 | 6526 | Qmouse = intern_c_string ("mouse"); |
8bd201d6 | 6527 | staticpro (&Qmouse); |
d67b4f80 | 6528 | Qmode_line_inactive = intern_c_string ("mode-line-inactive"); |
039b6394 | 6529 | staticpro (&Qmode_line_inactive); |
d67b4f80 | 6530 | Qvertical_border = intern_c_string ("vertical-border"); |
53abc3bf | 6531 | staticpro (&Qvertical_border); |
d67b4f80 | 6532 | Qtty_color_desc = intern_c_string ("tty-color-desc"); |
2d764c78 | 6533 | staticpro (&Qtty_color_desc); |
d67b4f80 | 6534 | Qtty_color_standard_values = intern_c_string ("tty-color-standard-values"); |
b35df831 | 6535 | staticpro (&Qtty_color_standard_values); |
d67b4f80 | 6536 | Qtty_color_by_index = intern_c_string ("tty-color-by-index"); |
2d764c78 | 6537 | staticpro (&Qtty_color_by_index); |
d67b4f80 | 6538 | Qtty_color_alist = intern_c_string ("tty-color-alist"); |
ae4b4ba5 | 6539 | staticpro (&Qtty_color_alist); |
d67b4f80 | 6540 | Qscalable_fonts_allowed = intern_c_string ("scalable-fonts-allowed"); |
eeffb293 | 6541 | staticpro (&Qscalable_fonts_allowed); |
82641697 | 6542 | |
dbc968b8 GM |
6543 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
6544 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
6545 | Vface_alternative_font_family_alist = Qnil; |
6546 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
6547 | Vface_alternative_font_registry_alist = Qnil; |
6548 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 6549 | |
82641697 GM |
6550 | defsubr (&Sinternal_make_lisp_face); |
6551 | defsubr (&Sinternal_lisp_face_p); | |
6552 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 6553 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6554 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 6555 | #endif |
ea4fa0af GM |
6556 | defsubr (&Scolor_gray_p); |
6557 | defsubr (&Scolor_supported_p); | |
7ded3383 AR |
6558 | #ifndef HAVE_X_WINDOWS |
6559 | defsubr (&Sx_load_color_file); | |
6560 | #endif | |
cdfaafa9 MB |
6561 | defsubr (&Sface_attribute_relative_p); |
6562 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
6563 | defsubr (&Sinternal_get_lisp_face_attribute); |
6564 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6565 | defsubr (&Sinternal_lisp_face_equal_p); | |
6566 | defsubr (&Sinternal_lisp_face_empty_p); | |
6567 | defsubr (&Sinternal_copy_lisp_face); | |
6568 | defsubr (&Sinternal_merge_in_global_face); | |
6569 | defsubr (&Sface_font); | |
6570 | defsubr (&Sframe_face_alist); | |
9717e36c | 6571 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 6572 | defsubr (&Scolor_distance); |
82641697 GM |
6573 | defsubr (&Sinternal_set_font_selection_order); |
6574 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 6575 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 6576 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
6577 | #if GLYPH_DEBUG |
6578 | defsubr (&Sdump_face); | |
6579 | defsubr (&Sshow_face_resources); | |
6580 | #endif /* GLYPH_DEBUG */ | |
6581 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 6582 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 6583 | |
38426dee | 6584 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
6585 | defsubr (&Sdump_colors); |
6586 | #endif | |
6587 | ||
29208e82 | 6588 | DEFVAR_LISP ("font-list-limit", Vfont_list_limit, |
7ee72033 | 6589 | doc: /* *Limit for font matching. |
228299fa GM |
6590 | If an integer > 0, font matching functions won't load more than |
6591 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
6592 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
6593 | ||
29208e82 | 6594 | DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults, |
7ee72033 | 6595 | doc: /* List of global face definitions (for internal use only.) */); |
82641697 | 6596 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 6597 | |
29208e82 | 6598 | DEFVAR_LISP ("face-default-stipple", Vface_default_stipple, |
7ee72033 | 6599 | doc: /* *Default stipple pattern used on monochrome displays. |
228299fa GM |
6600 | This stipple pattern is used on monochrome displays |
6601 | instead of shades of gray for a face background color. | |
6602 | See `set-face-stipple' for possible values for this variable. */); | |
a4ada374 | 6603 | Vface_default_stipple = make_pure_c_string ("gray3"); |
82641697 | 6604 | |
29208e82 | 6605 | DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist, |
46710489 GM |
6606 | doc: /* An alist of defined terminal colors and their RGB values. |
6607 | See the docstring of `tty-color-alist' for the details. */); | |
ae4b4ba5 GM |
6608 | Vtty_defined_color_alist = Qnil; |
6609 | ||
29208e82 | 6610 | DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed, |
7ee72033 | 6611 | doc: /* Allowed scalable fonts. |
228299fa GM |
6612 | A value of nil means don't allow any scalable fonts. |
6613 | A value of t means allow any scalable font. | |
6614 | Otherwise, value must be a list of regular expressions. A font may be | |
6615 | scaled if its name matches a regular expression in the list. | |
6616 | Note that if value is nil, a scalable font might still be used, if no | |
6617 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 6618 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 6619 | |
29208e82 | 6620 | DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts, |
7ee72033 | 6621 | doc: /* List of ignored fonts. |
228299fa GM |
6622 | Each element is a regular expression that matches names of fonts to |
6623 | ignore. */); | |
c824bfbc KH |
6624 | Vface_ignored_fonts = Qnil; |
6625 | ||
29208e82 | 6626 | DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist, |
f2cec7a9 MB |
6627 | doc: /* Alist of face remappings. |
6628 | Each element is of the form: | |
6629 | ||
6630 | (FACE REPLACEMENT...), | |
6631 | ||
6632 | which causes display of the face FACE to use REPLACEMENT... instead. | |
635c0aa1 CY |
6633 | REPLACEMENT... is interpreted the same way as the value of a `face' |
6634 | text property: it may be (1) A face name, (2) A list of face names, | |
6635 | (3) A property-list of face attribute/value pairs, or (4) A list of | |
6636 | face names or lists containing face attribute/value pairs. | |
f2cec7a9 MB |
6637 | |
6638 | Multiple entries in REPLACEMENT... are merged together to form the final | |
6639 | result, with faces or attributes earlier in the list taking precedence | |
6640 | over those that are later. | |
6641 | ||
6642 | Face-name remapping cycles are suppressed; recursive references use the | |
6643 | underlying face instead of the remapped face. So a remapping of the form: | |
6644 | ||
6645 | (FACE EXTRA-FACE... FACE) | |
6646 | ||
6647 | or: | |
6648 | ||
6649 | (FACE (FACE-ATTR VAL ...) FACE) | |
6650 | ||
6651 | will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the | |
6652 | existing definition of FACE. Note that for the default face, this isn't | |
6653 | necessary, as every face inherits from the default face. | |
6654 | ||
6655 | Making this variable buffer-local is a good way to allow buffer-specific | |
6656 | face definitions. For instance, the mode my-mode could define a face | |
6657 | `my-mode-default', and then in the mode setup function, do: | |
6658 | ||
6659 | (set (make-local-variable 'face-remapping-alist) | |
635c0aa1 CY |
6660 | '((default my-mode-default)))). |
6661 | ||
6662 | Because Emacs normally only redraws screen areas when the underlying | |
6663 | buffer contents change, you may need to call `redraw-display' after | |
6664 | changing this variable for it to take effect. */); | |
f2cec7a9 MB |
6665 | Vface_remapping_alist = Qnil; |
6666 | ||
29208e82 | 6667 | DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist, |
f70400f2 | 6668 | doc: /* Alist of fonts vs the rescaling factors. |
96f9306b KH |
6669 | Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where |
6670 | FONT-PATTERN is a font-spec or a regular expression matching a font name, and | |
f70400f2 KH |
6671 | RESCALE-RATIO is a floating point number to specify how much larger |
6672 | \(or smaller) font we should use. For instance, if a face requests | |
6673 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
6674 | Vface_font_rescale_alist = Qnil; | |
6675 | ||
c3cee013 | 6676 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 6677 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
6678 | defsubr (&Sx_list_fonts); |
6679 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 6680 | defsubr (&Sx_family_fonts); |
32247e3d | 6681 | #endif |
c115973b | 6682 | } |