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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
aaef169d | 3 | 2005, 2006 Free Software Foundation, Inc. |
7b7739b1 | 4 | |
c115973b JB |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 9 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
c115973b | 21 | |
82641697 GM |
22 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
23 | ||
24 | /* Faces. | |
25 | ||
26 | When using Emacs with X, the display style of characters can be | |
27 | changed by defining `faces'. Each face can specify the following | |
28 | display attributes: | |
29 | ||
39506348 | 30 | 1. Font family name. |
178c5d9c | 31 | |
82641697 GM |
32 | 2. Relative proportionate width, aka character set width or set |
33 | width (swidth), e.g. `semi-compressed'. | |
178c5d9c | 34 | |
39506348 | 35 | 3. Font height in 1/10pt. |
178c5d9c | 36 | |
82641697 | 37 | 4. Font weight, e.g. `bold'. |
178c5d9c | 38 | |
82641697 | 39 | 5. Font slant, e.g. `italic'. |
178c5d9c | 40 | |
82641697 | 41 | 6. Foreground color. |
178c5d9c | 42 | |
82641697 GM |
43 | 7. Background color. |
44 | ||
45 | 8. Whether or not characters should be underlined, and in what color. | |
46 | ||
47 | 9. Whether or not characters should be displayed in inverse video. | |
48 | ||
49 | 10. A background stipple, a bitmap. | |
50 | ||
51 | 11. Whether or not characters should be overlined, and in what color. | |
52 | ||
53 | 12. Whether or not characters should be strike-through, and in what | |
54 | color. | |
55 | ||
56 | 13. Whether or not a box should be drawn around characters, the box | |
57 | type, and, for simple boxes, in what color. | |
58 | ||
763bc839 | 59 | 14. Font pattern, or nil. This is a special attribute. |
ec7a10e3 | 60 | When this attribute is specified, the face uses a font opened by |
39506348 KH |
61 | that pattern as is. In addition, all the other font-related |
62 | attributes (1st thru 5th) are generated from the opened font name. | |
63 | On the other hand, if one of the other font-related attributes are | |
64 | specified, this attribute is set to nil. In that case, the face | |
65 | doesn't inherit this attribute from the `default' face, and uses a | |
66 | font determined by the other attributes (those may be inherited | |
67 | from the `default' face). | |
68 | ||
2c20458f MB |
69 | 15. A face name or list of face names from which to inherit attributes. |
70 | ||
a08332c0 GM |
71 | 16. A specified average font width, which is invisible from Lisp, |
72 | and is used to ensure that a font specified on the command line, | |
73 | for example, can be matched exactly. | |
74 | ||
763bc839 KH |
75 | 17. A fontset name. |
76 | ||
82641697 GM |
77 | Faces are frame-local by nature because Emacs allows to define the |
78 | same named face (face names are symbols) differently for different | |
79 | frames. Each frame has an alist of face definitions for all named | |
80 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
81 | with the symbol `face' in slot 0, and a slot for each of the face |
82 | attributes mentioned above. | |
82641697 GM |
83 | |
84 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
85 | definitions from this list are used to initialize faces of newly | |
86 | created frames. | |
178c5d9c | 87 | |
82641697 | 88 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
89 | have a value of `unspecified'. Faces specifying all attributes but |
90 | the 14th are called `fully-specified'. | |
82641697 GM |
91 | |
92 | ||
93 | Face merging. | |
94 | ||
95 | The display style of a given character in the text is determined by | |
96 | combining several faces. This process is called `face merging'. | |
97 | Any aspect of the display style that isn't specified by overlays or | |
98 | text properties is taken from the `default' face. Since it is made | |
99 | sure that the default face is always fully-specified, face merging | |
100 | always results in a fully-specified face. | |
101 | ||
102 | ||
103 | Face realization. | |
178c5d9c | 104 | |
82641697 GM |
105 | After all face attributes for a character have been determined by |
106 | merging faces of that character, that face is `realized'. The | |
107 | realization process maps face attributes to what is physically | |
108 | available on the system where Emacs runs. The result is a | |
109 | `realized face' in form of a struct face which is stored in the | |
110 | face cache of the frame on which it was realized. | |
111 | ||
39506348 KH |
112 | Face realization is done in the context of the character to display |
113 | because different fonts may be used for different characters. In | |
114 | other words, for characters that have different font | |
115 | specifications, different realized faces are needed to display | |
82641697 GM |
116 | them. |
117 | ||
39506348 KH |
118 | Font specification is done by fontsets. See the comment in |
119 | fontset.c for the details. In the current implementation, all ASCII | |
120 | characters share the same font in a fontset. | |
121 | ||
122 | Faces are at first realized for ASCII characters, and, at that | |
123 | time, assigned a specific realized fontset. Hereafter, we call | |
124 | such a face as `ASCII face'. When a face for a multibyte character | |
125 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
126 | that has the same attributes other than font-related ones. | |
127 | ||
763bc839 | 128 | Thus, all realized faces have a realized fontset. |
82641697 GM |
129 | |
130 | ||
131 | Unibyte text. | |
132 | ||
39506348 KH |
133 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
134 | font as ASCII characters. That is because it is expected that | |
135 | unibyte text users specify a font that is suitable both for ASCII | |
136 | and raw 8-bit characters. | |
137 | ||
82641697 GM |
138 | |
139 | Font selection. | |
140 | ||
141 | Font selection tries to find the best available matching font for a | |
39506348 | 142 | given (character, face) combination. |
82641697 | 143 | |
39506348 KH |
144 | If the face specifies a fontset name, that fontset determines a |
145 | pattern for fonts of the given character. If the face specifies a | |
146 | font name or the other font-related attributes, a fontset is | |
147 | realized from the default fontset. In that case, that | |
148 | specification determines a pattern for ASCII characters and the | |
149 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
150 | |
151 | Available fonts on the system on which Emacs runs are then matched | |
152 | against the font pattern. The result of font selection is the best | |
153 | match for the given face attributes in this font list. | |
154 | ||
155 | Font selection can be influenced by the user. | |
156 | ||
157 | 1. The user can specify the relative importance he gives the face | |
158 | attributes width, height, weight, and slant by setting | |
159 | face-font-selection-order (faces.el) to a list of face attribute | |
160 | names. The default is '(:width :height :weight :slant), and means | |
161 | that font selection first tries to find a good match for the font | |
162 | width specified by a face, then---within fonts with that | |
163 | width---tries to find a best match for the specified font height, | |
164 | etc. | |
165 | ||
c824bfbc | 166 | 2. Setting face-font-family-alternatives allows the user to |
82641697 GM |
167 | specify alternative font families to try if a family specified by a |
168 | face doesn't exist. | |
169 | ||
c824bfbc KH |
170 | 3. Setting face-font-registry-alternatives allows the user to |
171 | specify all alternative font registries to try for a face | |
172 | specifying a registry. | |
173 | ||
174 | 4. Setting face-ignored-fonts allows the user to ignore specific | |
175 | fonts. | |
176 | ||
82641697 | 177 | |
ec7a10e3 | 178 | Character composition. |
39506348 KH |
179 | |
180 | Usually, the realization process is already finished when Emacs | |
181 | actually reflects the desired glyph matrix on the screen. However, | |
182 | on displaying a composition (sequence of characters to be composed | |
183 | on the screen), a suitable font for the components of the | |
184 | composition is selected and realized while drawing them on the | |
185 | screen, i.e. the realization process is delayed but in principle | |
186 | the same. | |
82641697 | 187 | |
178c5d9c | 188 | |
82641697 GM |
189 | Initialization of basic faces. |
190 | ||
191 | The faces `default', `modeline' are considered `basic faces'. | |
192 | When redisplay happens the first time for a newly created frame, | |
193 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
194 | used to fill in unspecified attributes of the default face. */ | |
195 | ||
68c45bf0 | 196 | #include <config.h> |
6b61353c | 197 | #include <stdio.h> |
c115973b JB |
198 | #include <sys/types.h> |
199 | #include <sys/stat.h> | |
7ee72033 | 200 | |
c115973b | 201 | #include "lisp.h" |
81b39386 | 202 | #include "character.h" |
a8517066 | 203 | #include "charset.h" |
9763806e | 204 | #include "keyboard.h" |
b5c53576 RS |
205 | #include "frame.h" |
206 | ||
f7cc6849 DL |
207 | #ifdef HAVE_WINDOW_SYSTEM |
208 | #include "fontset.h" | |
d12d0a9b GM |
209 | #endif /* HAVE_WINDOW_SYSTEM */ |
210 | ||
87485d6f | 211 | #ifdef HAVE_X_WINDOWS |
c115973b | 212 | #include "xterm.h" |
c7ae3284 GM |
213 | #ifdef USE_MOTIF |
214 | #include <Xm/Xm.h> | |
215 | #include <Xm/XmStrDefs.h> | |
216 | #endif /* USE_MOTIF */ | |
d12d0a9b | 217 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 218 | |
87485d6f MW |
219 | #ifdef MSDOS |
220 | #include "dosfns.h" | |
221 | #endif | |
82641697 | 222 | |
c3cee013 JR |
223 | #ifdef WINDOWSNT |
224 | #include "w32term.h" | |
225 | #include "fontset.h" | |
226 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
227 | code with #ifdef blocks. */ | |
9763806e | 228 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
229 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
230 | #define x_display_info w32_display_info | |
231 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
232 | #define check_x check_w32 | |
233 | #define x_list_fonts w32_list_fonts | |
234 | #define GCGraphicsExposures 0 | |
d12d0a9b | 235 | #endif /* WINDOWSNT */ |
c3cee013 | 236 | |
e0f712ba | 237 | #ifdef MAC_OS |
1a578e9b AC |
238 | #include "macterm.h" |
239 | #define x_display_info mac_display_info | |
240 | #define check_x check_mac | |
e0f712ba | 241 | #endif /* MAC_OS */ |
1a578e9b | 242 | |
c115973b | 243 | #include "buffer.h" |
f211082d | 244 | #include "dispextern.h" |
357f32fc | 245 | #include "blockinput.h" |
b6d40e46 | 246 | #include "window.h" |
bde7c500 | 247 | #include "intervals.h" |
c115973b | 248 | |
426b2119 KH |
249 | #ifdef HAVE_WINDOW_SYSTEM |
250 | #ifdef USE_FONT_BACKEND | |
251 | #include "font.h" | |
252 | #endif /* USE_FONT_BACKEND */ | |
253 | #endif /* HAVE_WINDOW_SYSTEM */ | |
254 | ||
87485d6f | 255 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
256 | |
257 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
258 | time.h. On some such systems, Xos.h tries to redefine struct |
259 | timeval and struct timezone if USG is #defined while it is | |
260 | #included. */ | |
657070ac | 261 | |
82641697 | 262 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 263 | #include <time.h> |
657070ac JB |
264 | #undef USG |
265 | #include <X11/Xos.h> | |
266 | #define USG | |
e11d186d | 267 | #define __TIMEVAL__ |
82641697 GM |
268 | #else /* not XOS_NEEDS_TIME_H */ |
269 | #include <X11/Xos.h> | |
270 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 271 | |
82641697 | 272 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 273 | |
82641697 | 274 | #include <ctype.h> |
c115973b | 275 | |
82641697 | 276 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 277 | |
c660ce4e GM |
278 | /* Number of pt per inch (from the TeXbook). */ |
279 | ||
280 | #define PT_PER_INCH 72.27 | |
281 | ||
82641697 GM |
282 | /* Non-zero if face attribute ATTR is unspecified. */ |
283 | ||
284 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
285 | ||
2ff10663 CY |
286 | /* Non-zero if face attribute ATTR is `ignore-defface'. */ |
287 | ||
288 | #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface) | |
289 | ||
82641697 GM |
290 | /* Value is the number of elements of VECTOR. */ |
291 | ||
292 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
293 | ||
178c5d9c | 294 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
295 | to the copy. */ |
296 | ||
297 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 298 | |
82641697 GM |
299 | /* Make a copy of the contents of Lisp string S on the stack using |
300 | alloca. Value is a pointer to the copy. */ | |
301 | ||
d5db4077 | 302 | #define LSTRDUPA(S) STRDUPA (SDATA ((S))) |
82641697 | 303 | |
178c5d9c | 304 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
305 | prime number). */ |
306 | ||
307 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
308 | ||
309 | /* Keyword symbols used for face attribute names. */ | |
310 | ||
311 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
312 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
313 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
314 | Lisp_Object QCreverse_video; | |
2c20458f | 315 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
763bc839 | 316 | Lisp_Object QCfontset; |
82641697 GM |
317 | |
318 | /* Symbols used for attribute values. */ | |
319 | ||
320 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
321 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
322 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
323 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
324 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
325 | Lisp_Object Qultra_expanded; | |
326 | Lisp_Object Qreleased_button, Qpressed_button; | |
327 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 | 328 | Lisp_Object Qunspecified; |
2ff10663 | 329 | Lisp_Object Qignore_defface; |
ef917393 EZ |
330 | |
331 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 332 | |
92610620 | 333 | /* The name of the function to call when the background of the frame |
c20577bc | 334 | has changed, frame_set_background_mode. */ |
92610620 | 335 | |
c20577bc | 336 | Lisp_Object Qframe_set_background_mode; |
92610620 | 337 | |
82641697 GM |
338 | /* Names of basic faces. */ |
339 | ||
fb4927c4 | 340 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 341 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
53abc3bf | 342 | Lisp_Object Qmode_line_inactive, Qvertical_border; |
fb4927c4 | 343 | extern Lisp_Object Qmode_line; |
8bd201d6 | 344 | |
92610620 GM |
345 | /* The symbol `face-alias'. A symbols having that property is an |
346 | alias for another face. Value of the property is the name of | |
347 | the aliased face. */ | |
348 | ||
349 | Lisp_Object Qface_alias; | |
350 | ||
d1bf13b3 KS |
351 | extern Lisp_Object Qcircular_list; |
352 | ||
82641697 GM |
353 | /* Default stipple pattern used on monochrome displays. This stipple |
354 | pattern is used on monochrome displays instead of shades of gray | |
355 | for a face background color. See `set-face-stipple' for possible | |
356 | values for this variable. */ | |
357 | ||
358 | Lisp_Object Vface_default_stipple; | |
359 | ||
82641697 GM |
360 | /* Alist of alternative font families. Each element is of the form |
361 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
362 | try FAMILY1, then FAMILY2, ... */ | |
363 | ||
364 | Lisp_Object Vface_alternative_font_family_alist; | |
365 | ||
32fcc231 GM |
366 | /* Alist of alternative font registries. Each element is of the form |
367 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
368 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
369 | ||
370 | Lisp_Object Vface_alternative_font_registry_alist; | |
371 | ||
82641697 GM |
372 | /* Allowed scalable fonts. A value of nil means don't allow any |
373 | scalable fonts. A value of t means allow the use of any scalable | |
374 | font. Otherwise, value must be a list of regular expressions. A | |
375 | font may be scaled if its name matches a regular expression in the | |
376 | list. */ | |
377 | ||
eeffb293 | 378 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 379 | |
c824bfbc KH |
380 | /* List of regular expressions that matches names of fonts to ignore. */ |
381 | ||
382 | Lisp_Object Vface_ignored_fonts; | |
383 | ||
f70400f2 KH |
384 | /* Alist of font name patterns vs the rescaling factor. */ |
385 | ||
386 | Lisp_Object Vface_font_rescale_alist; | |
387 | ||
057df17c GM |
388 | /* Maximum number of fonts to consider in font_list. If not an |
389 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
390 | ||
391 | Lisp_Object Vfont_list_limit; | |
392 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
393 | ||
82641697 GM |
394 | /* The symbols `foreground-color' and `background-color' which can be |
395 | used as part of a `face' property. This is for compatibility with | |
396 | Emacs 20.2. */ | |
397 | ||
398 | Lisp_Object Qforeground_color, Qbackground_color; | |
399 | ||
400 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 401 | |
ff83dbb1 | 402 | Lisp_Object Qface; |
82641697 GM |
403 | extern Lisp_Object Qmouse_face; |
404 | ||
46b00436 KS |
405 | /* Property for basic faces which other faces cannot inherit. */ |
406 | ||
407 | Lisp_Object Qface_no_inherit; | |
408 | ||
82641697 GM |
409 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
410 | ||
fef04523 | 411 | Lisp_Object Qbitmap_spec_p; |
f211082d | 412 | |
82641697 GM |
413 | /* Alist of global face definitions. Each element is of the form |
414 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
415 | is a Lisp vector of face attributes. These faces are used | |
416 | to initialize faces for new frames. */ | |
cb637678 | 417 | |
82641697 | 418 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 419 | |
82641697 | 420 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 421 | |
82641697 | 422 | static int next_lface_id; |
c115973b | 423 | |
82641697 | 424 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 425 | |
82641697 GM |
426 | static Lisp_Object *lface_id_to_name; |
427 | static int lface_id_to_name_size; | |
c115973b | 428 | |
ae4b4ba5 GM |
429 | /* TTY color-related functions (defined in tty-colors.el). */ |
430 | ||
b35df831 | 431 | Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 432 | |
ae4b4ba5 GM |
433 | /* The name of the function used to compute colors on TTYs. */ |
434 | ||
435 | Lisp_Object Qtty_color_alist; | |
436 | ||
437 | /* An alist of defined terminal colors and their RGB values. */ | |
438 | ||
439 | Lisp_Object Vtty_defined_color_alist; | |
440 | ||
82641697 GM |
441 | /* Counter for calls to clear_face_cache. If this counter reaches |
442 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
443 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
444 | ||
445 | static int clear_font_table_count; | |
446 | #define CLEAR_FONT_TABLE_COUNT 100 | |
447 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
448 | ||
449 | /* Non-zero means face attributes have been changed since the last | |
450 | redisplay. Used in redisplay_internal. */ | |
451 | ||
452 | int face_change_count; | |
453 | ||
a4a76b61 GM |
454 | /* Non-zero means don't display bold text if a face's foreground |
455 | and background colors are the inverse of the default colors of the | |
456 | display. This is a kluge to suppress `bold black' foreground text | |
457 | which is hard to read on an LCD monitor. */ | |
458 | ||
459 | int tty_suppress_bold_inverse_default_colors_p; | |
460 | ||
dbc968b8 GM |
461 | /* A list of the form `((x . y))' used to avoid consing in |
462 | Finternal_set_lisp_face_attribute. */ | |
463 | ||
464 | static Lisp_Object Vparam_value_alist; | |
465 | ||
82641697 GM |
466 | /* The total number of colors currently allocated. */ |
467 | ||
468 | #if GLYPH_DEBUG | |
469 | static int ncolors_allocated; | |
470 | static int npixmaps_allocated; | |
471 | static int ngcs; | |
472 | #endif | |
473 | ||
ceeda019 GM |
474 | /* Non-zero means the definition of the `menu' face for new frames has |
475 | been changed. */ | |
476 | ||
477 | int menu_face_changed_default; | |
82641697 GM |
478 | |
479 | \f | |
480 | /* Function prototypes. */ | |
481 | ||
482 | struct font_name; | |
483 | struct table_entry; | |
a0a23346 | 484 | struct named_merge_point; |
82641697 | 485 | |
ae4b4ba5 GM |
486 | static void map_tty_color P_ ((struct frame *, struct face *, |
487 | enum lface_attribute_index, int *)); | |
d1bf13b3 | 488 | static Lisp_Object resolve_face_name P_ ((Lisp_Object, int)); |
53c208f6 | 489 | static int may_use_scalable_font_p P_ ((const char *)); |
82641697 GM |
490 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
491 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 492 | int, int)); |
82641697 | 493 | static int x_face_list_fonts P_ ((struct frame *, char *, |
ee5be7c3 | 494 | struct font_name **, int, int)); |
82641697 | 495 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
496 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
497 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
498 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
499 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 500 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
af53b43c | 501 | static void load_face_font P_ ((struct frame *, struct face *)); |
82641697 GM |
502 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
503 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
504 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
505 | static char *build_font_name P_ ((struct font_name *)); | |
506 | static void free_font_names P_ ((struct font_name *, int)); | |
507 | static int sorted_font_list P_ ((struct frame *, char *, | |
508 | int (*cmpfn) P_ ((const void *, const void *)), | |
509 | struct font_name **)); | |
32fcc231 GM |
510 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
511 | Lisp_Object, struct font_name **)); | |
39506348 KH |
512 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
513 | Lisp_Object, struct font_name **)); | |
af53b43c | 514 | static int try_font_list P_ ((struct frame *, Lisp_Object, |
39506348 | 515 | Lisp_Object, Lisp_Object, struct font_name **)); |
4a529c42 GM |
516 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
517 | Lisp_Object, struct font_name **)); | |
82641697 | 518 | static int cmp_font_names P_ ((const void *, const void *)); |
af53b43c KH |
519 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, |
520 | int)); | |
521 | static struct face *realize_non_ascii_face P_ ((struct frame *, int, | |
522 | struct face *)); | |
af53b43c KH |
523 | static struct face *realize_x_face P_ ((struct face_cache *, Lisp_Object *)); |
524 | static struct face *realize_tty_face P_ ((struct face_cache *, Lisp_Object *)); | |
82641697 GM |
525 | static int realize_basic_faces P_ ((struct frame *)); |
526 | static int realize_default_face P_ ((struct frame *)); | |
527 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
528 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
529 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
530 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
531 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
532 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
533 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
82641697 GM |
534 | static void clear_face_gcs P_ ((struct face_cache *)); |
535 | static void free_face_cache P_ ((struct face_cache *)); | |
536 | static int face_numeric_weight P_ ((Lisp_Object)); | |
537 | static int face_numeric_slant P_ ((Lisp_Object)); | |
538 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 539 | static int face_fontset P_ ((Lisp_Object *)); |
a0a23346 MB |
540 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, |
541 | struct named_merge_point *)); | |
542 | static int merge_face_ref P_ ((struct frame *, Lisp_Object, Lisp_Object *, | |
543 | int, struct named_merge_point *)); | |
39506348 KH |
544 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
545 | Lisp_Object, int, int)); | |
82641697 | 546 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 547 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 | 548 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, |
6ae2cd57 | 549 | struct font_name *, int, int, int *)); |
82641697 GM |
550 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
551 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
552 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
553 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
554 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
555 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
556 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
557 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
558 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
559 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
560 | int, int)); | |
561 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
562 | struct font_name *, int, |
563 | Lisp_Object)); | |
82641697 GM |
564 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
565 | struct font_name *, int)); | |
566 | ||
c3cee013 | 567 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
568 | |
569 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
570 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
571 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
572 | int (*cmpfn) P_ ((const void *, const void *)))); | |
573 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
574 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 575 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 576 | |
c3cee013 JR |
577 | #ifdef WINDOWSNT |
578 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
579 | #endif /* WINDOWSNT */ | |
580 | ||
bce72079 GM |
581 | #ifdef USE_X_TOOLKIT |
582 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
583 | |
584 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
585 | #endif /* USE_X_TOOLKIT */ |
586 | ||
c3cee013 | 587 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 588 | |
cb637678 | 589 | \f |
82641697 GM |
590 | /*********************************************************************** |
591 | Utilities | |
592 | ***********************************************************************/ | |
c115973b | 593 | |
87485d6f | 594 | #ifdef HAVE_X_WINDOWS |
cb637678 | 595 | |
a435fc2a GM |
596 | #ifdef DEBUG_X_COLORS |
597 | ||
598 | /* The following is a poor mans infrastructure for debugging X color | |
599 | allocation problems on displays with PseudoColor-8. Some X servers | |
600 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
601 | color reference counts completely so that they don't signal an | |
602 | error when a color is freed whose reference count is already 0. | |
603 | Other X servers do. To help me debug this, the following code | |
604 | implements a simple reference counting schema of its own, for a | |
605 | single display/screen. --gerd. */ | |
606 | ||
607 | /* Reference counts for pixel colors. */ | |
608 | ||
609 | int color_count[256]; | |
610 | ||
611 | /* Register color PIXEL as allocated. */ | |
612 | ||
613 | void | |
614 | register_color (pixel) | |
615 | unsigned long pixel; | |
616 | { | |
617 | xassert (pixel < 256); | |
618 | ++color_count[pixel]; | |
619 | } | |
620 | ||
621 | ||
622 | /* Register color PIXEL as deallocated. */ | |
623 | ||
624 | void | |
625 | unregister_color (pixel) | |
626 | unsigned long pixel; | |
627 | { | |
628 | xassert (pixel < 256); | |
629 | if (color_count[pixel] > 0) | |
630 | --color_count[pixel]; | |
631 | else | |
632 | abort (); | |
633 | } | |
634 | ||
635 | ||
636 | /* Register N colors from PIXELS as deallocated. */ | |
637 | ||
638 | void | |
639 | unregister_colors (pixels, n) | |
640 | unsigned long *pixels; | |
641 | int n; | |
642 | { | |
643 | int i; | |
644 | for (i = 0; i < n; ++i) | |
645 | unregister_color (pixels[i]); | |
646 | } | |
647 | ||
08dc08dc GM |
648 | |
649 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
650 | doc: /* Dump currently allocated colors to stderr. */) |
651 | () | |
08dc08dc GM |
652 | { |
653 | int i, n; | |
654 | ||
655 | fputc ('\n', stderr); | |
178c5d9c | 656 | |
08dc08dc GM |
657 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
658 | if (color_count[i]) | |
659 | { | |
660 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
661 | ++n; | |
662 | if (n % 5 == 0) | |
663 | fputc ('\n', stderr); | |
664 | else | |
665 | fputc ('\t', stderr); | |
666 | } | |
667 | ||
668 | if (n % 5 != 0) | |
669 | fputc ('\n', stderr); | |
670 | return Qnil; | |
671 | } | |
672 | ||
a435fc2a GM |
673 | #endif /* DEBUG_X_COLORS */ |
674 | ||
d12d0a9b | 675 | |
1f847cf8 GM |
676 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
677 | color values. Interrupt input must be blocked when this function | |
678 | is called. */ | |
679 | ||
680 | void | |
681 | x_free_colors (f, pixels, npixels) | |
682 | struct frame *f; | |
683 | unsigned long *pixels; | |
684 | int npixels; | |
685 | { | |
686 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
687 | ||
688 | /* If display has an immutable color map, freeing colors is not | |
689 | necessary and some servers don't allow it. So don't do it. */ | |
690 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
691 | { | |
a435fc2a | 692 | #ifdef DEBUG_X_COLORS |
08dc08dc | 693 | unregister_colors (pixels, npixels); |
a435fc2a | 694 | #endif |
513c5806 GM |
695 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
696 | pixels, npixels, 0); | |
08dc08dc GM |
697 | } |
698 | } | |
699 | ||
700 | ||
701 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
702 | color values. Interrupt input must be blocked when this function | |
703 | is called. */ | |
704 | ||
705 | void | |
706 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
707 | Display *dpy; | |
708 | Screen *screen; | |
709 | Colormap cmap; | |
710 | unsigned long *pixels; | |
711 | int npixels; | |
712 | { | |
713 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
714 | int class = dpyinfo->visual->class; | |
715 | ||
716 | /* If display has an immutable color map, freeing colors is not | |
717 | necessary and some servers don't allow it. So don't do it. */ | |
718 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
719 | { | |
a435fc2a | 720 | #ifdef DEBUG_X_COLORS |
08dc08dc | 721 | unregister_colors (pixels, npixels); |
a435fc2a | 722 | #endif |
513c5806 | 723 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
724 | } |
725 | } | |
726 | ||
08dc08dc | 727 | |
82641697 GM |
728 | /* Create and return a GC for use on frame F. GC values and mask |
729 | are given by XGCV and MASK. */ | |
730 | ||
731 | static INLINE GC | |
732 | x_create_gc (f, mask, xgcv) | |
cb637678 | 733 | struct frame *f; |
82641697 GM |
734 | unsigned long mask; |
735 | XGCValues *xgcv; | |
c115973b JB |
736 | { |
737 | GC gc; | |
82641697 GM |
738 | BLOCK_INPUT; |
739 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
740 | UNBLOCK_INPUT; | |
741 | IF_DEBUG (++ngcs); | |
742 | return gc; | |
743 | } | |
c115973b | 744 | |
42120bc7 | 745 | |
82641697 GM |
746 | /* Free GC which was used on frame F. */ |
747 | ||
748 | static INLINE void | |
749 | x_free_gc (f, gc) | |
750 | struct frame *f; | |
751 | GC gc; | |
752 | { | |
660ed669 | 753 | BLOCK_INPUT; |
a6d8ba25 | 754 | IF_DEBUG (xassert (--ngcs >= 0)); |
82641697 GM |
755 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
756 | UNBLOCK_INPUT; | |
757 | } | |
660ed669 | 758 | |
82641697 | 759 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 760 | |
c3cee013 JR |
761 | #ifdef WINDOWSNT |
762 | /* W32 emulation of GCs */ | |
763 | ||
764 | static INLINE GC | |
765 | x_create_gc (f, mask, xgcv) | |
766 | struct frame *f; | |
767 | unsigned long mask; | |
768 | XGCValues *xgcv; | |
769 | { | |
770 | GC gc; | |
771 | BLOCK_INPUT; | |
772 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
773 | UNBLOCK_INPUT; | |
774 | IF_DEBUG (++ngcs); | |
775 | return gc; | |
776 | } | |
777 | ||
778 | ||
779 | /* Free GC which was used on frame F. */ | |
780 | ||
781 | static INLINE void | |
782 | x_free_gc (f, gc) | |
783 | struct frame *f; | |
784 | GC gc; | |
785 | { | |
786 | BLOCK_INPUT; | |
a6d8ba25 | 787 | IF_DEBUG (xassert (--ngcs >= 0)); |
c3cee013 JR |
788 | xfree (gc); |
789 | UNBLOCK_INPUT; | |
790 | } | |
791 | ||
792 | #endif /* WINDOWSNT */ | |
660ed669 | 793 | |
e0f712ba AC |
794 | #ifdef MAC_OS |
795 | /* Mac OS emulation of GCs */ | |
796 | ||
e0f712ba AC |
797 | static INLINE GC |
798 | x_create_gc (f, mask, xgcv) | |
799 | struct frame *f; | |
800 | unsigned long mask; | |
801 | XGCValues *xgcv; | |
802 | { | |
803 | GC gc; | |
61e62f5f | 804 | BLOCK_INPUT; |
e0f712ba | 805 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); |
61e62f5f YM |
806 | UNBLOCK_INPUT; |
807 | IF_DEBUG (++ngcs); | |
e0f712ba AC |
808 | return gc; |
809 | } | |
810 | ||
811 | static INLINE void | |
812 | x_free_gc (f, gc) | |
813 | struct frame *f; | |
814 | GC gc; | |
815 | { | |
61e62f5f YM |
816 | BLOCK_INPUT; |
817 | IF_DEBUG (xassert (--ngcs >= 0)); | |
e0f712ba | 818 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); |
61e62f5f | 819 | UNBLOCK_INPUT; |
e0f712ba AC |
820 | } |
821 | ||
822 | #endif /* MAC_OS */ | |
823 | ||
82641697 GM |
824 | /* Like stricmp. Used to compare parts of font names which are in |
825 | ISO8859-1. */ | |
826 | ||
827 | int | |
828 | xstricmp (s1, s2) | |
23889aba | 829 | const unsigned char *s1, *s2; |
82641697 GM |
830 | { |
831 | while (*s1 && *s2) | |
95887807 | 832 | { |
82641697 GM |
833 | unsigned char c1 = tolower (*s1); |
834 | unsigned char c2 = tolower (*s2); | |
835 | if (c1 != c2) | |
836 | return c1 < c2 ? -1 : 1; | |
837 | ++s1, ++s2; | |
95887807 | 838 | } |
cd0bb842 | 839 | |
82641697 GM |
840 | if (*s1 == 0) |
841 | return *s2 == 0 ? 0 : -1; | |
842 | return 1; | |
843 | } | |
660ed669 | 844 | |
660ed669 | 845 | |
82641697 | 846 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 847 | |
82641697 GM |
848 | static unsigned char * |
849 | xstrlwr (s) | |
850 | unsigned char *s; | |
851 | { | |
852 | unsigned char *p = s; | |
853 | ||
854 | for (p = s; *p; ++p) | |
9655b404 YM |
855 | /* On Mac OS X 10.3, tolower also converts non-ASCII characters |
856 | for some locales. */ | |
857 | if (isascii (*p)) | |
858 | *p = tolower (*p); | |
82641697 GM |
859 | |
860 | return s; | |
c115973b | 861 | } |
cb637678 | 862 | |
42120bc7 | 863 | |
82641697 GM |
864 | /* Signal `error' with message S, and additional argument ARG. */ |
865 | ||
866 | static void | |
867 | signal_error (s, arg) | |
868 | char *s; | |
869 | Lisp_Object arg; | |
42120bc7 | 870 | { |
82641697 GM |
871 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
872 | } | |
42120bc7 | 873 | |
82641697 | 874 | |
c0617987 GM |
875 | /* If FRAME is nil, return a pointer to the selected frame. |
876 | Otherwise, check that FRAME is a live frame, and return a pointer | |
877 | to it. NPARAM is the parameter number of FRAME, for | |
878 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
879 | Lisp function definitions. */ | |
82641697 GM |
880 | |
881 | static INLINE struct frame * | |
882 | frame_or_selected_frame (frame, nparam) | |
883 | Lisp_Object frame; | |
884 | int nparam; | |
885 | { | |
82641697 | 886 | if (NILP (frame)) |
c0617987 | 887 | frame = selected_frame; |
178c5d9c | 888 | |
b7826503 | 889 | CHECK_LIVE_FRAME (frame); |
c0617987 | 890 | return XFRAME (frame); |
42120bc7 | 891 | } |
82641697 | 892 | |
42120bc7 | 893 | \f |
82641697 GM |
894 | /*********************************************************************** |
895 | Frames and faces | |
896 | ***********************************************************************/ | |
cd0bb842 | 897 | |
82641697 | 898 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 899 | |
82641697 GM |
900 | void |
901 | init_frame_faces (f) | |
cb637678 | 902 | struct frame *f; |
cb637678 | 903 | { |
82641697 GM |
904 | /* Make a face cache, if F doesn't have one. */ |
905 | if (FRAME_FACE_CACHE (f) == NULL) | |
906 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 907 | |
c3cee013 | 908 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 909 | /* Make the image cache. */ |
c3cee013 | 910 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
911 | { |
912 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
913 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
914 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
915 | } | |
c3cee013 | 916 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 917 | |
178c5d9c | 918 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
919 | parameters to realize basic faces at this point. */ |
920 | #ifdef HAVE_X_WINDOWS | |
921 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
922 | #endif |
923 | #ifdef WINDOWSNT | |
924 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
925 | #endif |
926 | #ifdef MAC_OS | |
927 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
928 | #endif |
929 | if (!realize_basic_faces (f)) | |
930 | abort (); | |
931 | } | |
cb637678 | 932 | |
cb637678 | 933 | |
82641697 | 934 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 935 | |
82641697 GM |
936 | void |
937 | free_frame_faces (f) | |
cb637678 | 938 | struct frame *f; |
cb637678 | 939 | { |
82641697 | 940 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 941 | |
82641697 GM |
942 | if (face_cache) |
943 | { | |
944 | free_face_cache (face_cache); | |
945 | FRAME_FACE_CACHE (f) = NULL; | |
946 | } | |
660ed669 | 947 | |
c3cee013 JR |
948 | #ifdef HAVE_WINDOW_SYSTEM |
949 | if (FRAME_WINDOW_P (f)) | |
195f798e | 950 | { |
82641697 GM |
951 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
952 | if (image_cache) | |
195f798e | 953 | { |
82641697 GM |
954 | --image_cache->refcount; |
955 | if (image_cache->refcount == 0) | |
956 | free_image_cache (f); | |
195f798e RS |
957 | } |
958 | } | |
c3cee013 | 959 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
960 | } |
961 | ||
82641697 | 962 | |
8bd201d6 GM |
963 | /* Clear face caches, and recompute basic faces for frame F. Call |
964 | this after changing frame parameters on which those faces depend, | |
965 | or when realized faces have been freed due to changing attributes | |
966 | of named faces. */ | |
82641697 GM |
967 | |
968 | void | |
969 | recompute_basic_faces (f) | |
cb637678 | 970 | struct frame *f; |
cb637678 | 971 | { |
82641697 GM |
972 | if (FRAME_FACE_CACHE (f)) |
973 | { | |
8bd201d6 | 974 | clear_face_cache (0); |
18df9369 GM |
975 | if (!realize_basic_faces (f)) |
976 | abort (); | |
82641697 GM |
977 | } |
978 | } | |
cb637678 | 979 | |
cb637678 | 980 | |
82641697 GM |
981 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
982 | try to free unused fonts, too. */ | |
cb637678 | 983 | |
adfea139 | 984 | void |
82641697 GM |
985 | clear_face_cache (clear_fonts_p) |
986 | int clear_fonts_p; | |
cb637678 | 987 | { |
c3cee013 | 988 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
989 | Lisp_Object tail, frame; |
990 | struct frame *f; | |
828e66d1 | 991 | |
82641697 GM |
992 | if (clear_fonts_p |
993 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 994 | { |
d5641fc5 | 995 | struct x_display_info *dpyinfo; |
177c0ea7 | 996 | |
426b2119 KH |
997 | #ifdef USE_FONT_BACKEND |
998 | if (! enable_font_backend) | |
999 | #endif /* USE_FONT_BACKEND */ | |
d5641fc5 GM |
1000 | /* Fonts are common for frames on one display, i.e. on |
1001 | one X screen. */ | |
1002 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
1003 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
1004 | clear_font_table (dpyinfo); | |
177c0ea7 | 1005 | |
82641697 GM |
1006 | /* From time to time see if we can unload some fonts. This also |
1007 | frees all realized faces on all frames. Fonts needed by | |
1008 | faces will be loaded again when faces are realized again. */ | |
1009 | clear_font_table_count = 0; | |
195f798e | 1010 | |
82641697 | 1011 | FOR_EACH_FRAME (tail, frame) |
195f798e | 1012 | { |
d5641fc5 | 1013 | struct frame *f = XFRAME (frame); |
c3cee013 | 1014 | if (FRAME_WINDOW_P (f) |
82641697 | 1015 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 1016 | free_all_realized_faces (frame); |
82641697 GM |
1017 | } |
1018 | } | |
1019 | else | |
1020 | { | |
1021 | /* Clear GCs of realized faces. */ | |
1022 | FOR_EACH_FRAME (tail, frame) | |
1023 | { | |
1024 | f = XFRAME (frame); | |
c3cee013 | 1025 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1026 | { |
1027 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1028 | clear_image_cache (f, 0); | |
195f798e RS |
1029 | } |
1030 | } | |
828e66d1 | 1031 | } |
c3cee013 | 1032 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1033 | } |
1034 | ||
82641697 GM |
1035 | |
1036 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1037 | doc: /* Clear face caches on all frames. |
1038 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1039 | (thoroughly) | |
6a3f48c7 | 1040 | Lisp_Object thoroughly; |
cd0bb842 | 1041 | { |
6a3f48c7 | 1042 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1043 | ++face_change_count; |
1044 | ++windows_or_buffers_changed; | |
82641697 GM |
1045 | return Qnil; |
1046 | } | |
1047 | ||
1048 | ||
1049 | ||
c3cee013 | 1050 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1051 | |
1052 | ||
4cba8c0b GM |
1053 | /* Remove fonts from the font table of DPYINFO except for the default |
1054 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1055 | from time to time. */ |
82641697 GM |
1056 | |
1057 | static void | |
d5641fc5 GM |
1058 | clear_font_table (dpyinfo) |
1059 | struct x_display_info *dpyinfo; | |
82641697 | 1060 | { |
82641697 GM |
1061 | int i; |
1062 | ||
d5641fc5 | 1063 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1064 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1065 | { | |
1066 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1067 | Lisp_Object tail, frame; |
1068 | ||
1069 | /* Check if slot is already free. */ | |
1070 | if (font_info->name == NULL) | |
1071 | continue; | |
1072 | ||
3d90c96c | 1073 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1074 | FOR_EACH_FRAME (tail, frame) |
1075 | { | |
1076 | struct frame *f = XFRAME (frame); | |
1077 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1078 | && font_info->font == FRAME_FONT (f)) |
1079 | break; | |
1080 | } | |
82641697 | 1081 | |
d5641fc5 | 1082 | if (!NILP (tail)) |
39506348 | 1083 | continue; |
82641697 | 1084 | |
39506348 KH |
1085 | /* Free names. */ |
1086 | if (font_info->full_name != font_info->name) | |
1087 | xfree (font_info->full_name); | |
1088 | xfree (font_info->name); | |
82641697 | 1089 | |
39506348 KH |
1090 | /* Free the font. */ |
1091 | BLOCK_INPUT; | |
c3cee013 | 1092 | #ifdef HAVE_X_WINDOWS |
39506348 | 1093 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1094 | #endif |
1095 | #ifdef WINDOWSNT | |
39506348 | 1096 | w32_unload_font (dpyinfo, font_info->font); |
b15325b2 ST |
1097 | #endif |
1098 | #ifdef MAC_OS | |
1099 | mac_unload_font (dpyinfo, font_info->font); | |
c3cee013 | 1100 | #endif |
39506348 | 1101 | UNBLOCK_INPUT; |
82641697 | 1102 | |
39506348 KH |
1103 | /* Mark font table slot free. */ |
1104 | font_info->font = NULL; | |
1105 | font_info->name = font_info->full_name = NULL; | |
1106 | } | |
82641697 GM |
1107 | } |
1108 | ||
c3cee013 | 1109 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1110 | |
1111 | ||
1112 | \f | |
1113 | /*********************************************************************** | |
1114 | X Pixmaps | |
1115 | ***********************************************************************/ | |
1116 | ||
c3cee013 | 1117 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1118 | |
fef04523 | 1119 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1120 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1121 | A bitmap specification is either a string, a file name, or a list |
1122 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1123 | HEIGHT is its height, and DATA is a string containing the bits of | |
1124 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1125 | \(WIDTH + 7)/8 bytes. */) |
1126 | (object) | |
82641697 GM |
1127 | Lisp_Object object; |
1128 | { | |
c7ae3284 | 1129 | int pixmap_p = 0; |
178c5d9c | 1130 | |
c7ae3284 GM |
1131 | if (STRINGP (object)) |
1132 | /* If OBJECT is a string, it's a file name. */ | |
1133 | pixmap_p = 1; | |
1134 | else if (CONSP (object)) | |
1135 | { | |
1136 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1137 | HEIGHT must be integers > 0, and DATA must be string large | |
1138 | enough to hold a bitmap of the specified size. */ | |
1139 | Lisp_Object width, height, data; | |
1140 | ||
1141 | height = width = data = Qnil; | |
178c5d9c | 1142 | |
c7ae3284 GM |
1143 | if (CONSP (object)) |
1144 | { | |
1145 | width = XCAR (object); | |
1146 | object = XCDR (object); | |
1147 | if (CONSP (object)) | |
1148 | { | |
1149 | height = XCAR (object); | |
1150 | object = XCDR (object); | |
1151 | if (CONSP (object)) | |
1152 | data = XCAR (object); | |
1153 | } | |
1154 | } | |
cd0bb842 | 1155 | |
c7ae3284 GM |
1156 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1157 | { | |
1158 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1159 | / BITS_PER_CHAR); | |
d5db4077 | 1160 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1161 | pixmap_p = 1; |
1162 | } | |
1163 | } | |
1164 | ||
1165 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1166 | } |
1167 | ||
cd0bb842 | 1168 | |
82641697 GM |
1169 | /* Load a bitmap according to NAME (which is either a file name or a |
1170 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1171 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1172 | bitmap cannot be loaded, display a message saying so, and return | |
1173 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1174 | if these pointers are not null. */ | |
cd0bb842 | 1175 | |
82641697 | 1176 | static int |
cd0bb842 | 1177 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1178 | FRAME_PTR f; |
cd0bb842 RS |
1179 | Lisp_Object name; |
1180 | unsigned int *w_ptr, *h_ptr; | |
1181 | { | |
1182 | int bitmap_id; | |
1183 | Lisp_Object tem; | |
1184 | ||
1185 | if (NILP (name)) | |
82641697 | 1186 | return 0; |
cd0bb842 | 1187 | |
fef04523 | 1188 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1189 | if (NILP (tem)) |
fef04523 | 1190 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1191 | |
1192 | BLOCK_INPUT; | |
cd0bb842 RS |
1193 | if (CONSP (name)) |
1194 | { | |
1195 | /* Decode a bitmap spec into a bitmap. */ | |
1196 | ||
1197 | int h, w; | |
1198 | Lisp_Object bits; | |
1199 | ||
1200 | w = XINT (Fcar (name)); | |
1201 | h = XINT (Fcar (Fcdr (name))); | |
1202 | bits = Fcar (Fcdr (Fcdr (name))); | |
1203 | ||
d5db4077 | 1204 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1205 | w, h); |
1206 | } | |
1207 | else | |
1208 | { | |
1209 | /* It must be a string -- a file name. */ | |
1210 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1211 | } | |
1212 | UNBLOCK_INPUT; | |
1213 | ||
7812a96f | 1214 | if (bitmap_id < 0) |
82641697 | 1215 | { |
1b8f7fbc | 1216 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1217 | bitmap_id = 0; |
cd0bb842 | 1218 | |
82641697 GM |
1219 | if (w_ptr) |
1220 | *w_ptr = 0; | |
1221 | if (h_ptr) | |
1222 | *h_ptr = 0; | |
1223 | } | |
1224 | else | |
1225 | { | |
1226 | #if GLYPH_DEBUG | |
1227 | ++npixmaps_allocated; | |
1228 | #endif | |
1229 | if (w_ptr) | |
1230 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1231 | ||
1232 | if (h_ptr) | |
1233 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1234 | } | |
cd0bb842 RS |
1235 | |
1236 | return bitmap_id; | |
cb637678 | 1237 | } |
87485d6f | 1238 | |
c3cee013 | 1239 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1240 | |
87485d6f | 1241 | |
82641697 | 1242 | \f |
82641697 GM |
1243 | /*********************************************************************** |
1244 | Fonts | |
1245 | ***********************************************************************/ | |
1246 | ||
c3cee013 | 1247 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1248 | |
af53b43c | 1249 | /* Load font of face FACE which is used on frame F to display ASCII |
763bc839 | 1250 | characters. The name of the font to load is determined by lface. */ |
82641697 GM |
1251 | |
1252 | static void | |
af53b43c | 1253 | load_face_font (f, face) |
82641697 GM |
1254 | struct frame *f; |
1255 | struct face *face; | |
87485d6f | 1256 | { |
82641697 | 1257 | struct font_info *font_info = NULL; |
39506348 | 1258 | char *font_name; |
6ae2cd57 | 1259 | int needs_overstrike; |
178c5d9c | 1260 | |
426b2119 KH |
1261 | #ifdef USE_FONT_BACKEND |
1262 | if (enable_font_backend) | |
1263 | abort (); | |
1264 | #endif /* USE_FONT_BACKEND */ | |
82641697 | 1265 | face->font_info_id = -1; |
82641697 | 1266 | face->font = NULL; |
af53b43c | 1267 | face->font_name = NULL; |
39506348 | 1268 | |
8f924df7 | 1269 | font_name = choose_face_font (f, face->lface, Qnil, &needs_overstrike); |
39506348 KH |
1270 | if (!font_name) |
1271 | return; | |
1272 | ||
82641697 | 1273 | BLOCK_INPUT; |
81b39386 | 1274 | font_info = FS_LOAD_FONT (f, font_name); |
82641697 GM |
1275 | UNBLOCK_INPUT; |
1276 | ||
1277 | if (font_info) | |
1278 | { | |
39506348 | 1279 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1280 | face->font = font_info->font; |
1281 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1282 | face->overstrike = needs_overstrike; |
39506348 | 1283 | if (face->gc) |
82641697 | 1284 | { |
39506348 KH |
1285 | x_free_gc (f, face->gc); |
1286 | face->gc = 0; | |
82641697 GM |
1287 | } |
1288 | } | |
39506348 | 1289 | else |
1b8f7fbc | 1290 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1291 | build_string (font_name), Qnil); |
39506348 | 1292 | xfree (font_name); |
87485d6f MW |
1293 | } |
1294 | ||
c3cee013 | 1295 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1296 | |
87485d6f | 1297 | |
82641697 GM |
1298 | \f |
1299 | /*********************************************************************** | |
1300 | X Colors | |
1301 | ***********************************************************************/ | |
1302 | ||
b35df831 MB |
1303 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1304 | RGB_LIST should contain (at least) 3 lisp integers. | |
1305 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1306 | ||
1307 | static int | |
1308 | parse_rgb_list (rgb_list, color) | |
1309 | Lisp_Object rgb_list; | |
1310 | XColor *color; | |
1311 | { | |
1312 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1313 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1314 | { \ | |
1315 | color->field = XINT (XCAR (rgb_list)); \ | |
1316 | rgb_list = XCDR (rgb_list); \ | |
1317 | } \ | |
1318 | else \ | |
1319 | return 0; | |
1320 | ||
1321 | PARSE_RGB_LIST_FIELD (red); | |
1322 | PARSE_RGB_LIST_FIELD (green); | |
1323 | PARSE_RGB_LIST_FIELD (blue); | |
1324 | ||
1325 | return 1; | |
1326 | } | |
1327 | ||
1328 | ||
1329 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1330 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1331 | non-zero, then the `standard' definition of the same color is | |
1332 | returned in it. */ | |
1333 | ||
1334 | static int | |
1335 | tty_lookup_color (f, color, tty_color, std_color) | |
1336 | struct frame *f; | |
1337 | Lisp_Object color; | |
1338 | XColor *tty_color, *std_color; | |
1339 | { | |
1340 | Lisp_Object frame, color_desc; | |
1341 | ||
1342 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1343 | return 0; | |
1344 | ||
1345 | XSETFRAME (frame, f); | |
1346 | ||
1347 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1348 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1349 | { | |
1350 | Lisp_Object rgb; | |
1351 | ||
1352 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1353 | return 0; | |
1354 | ||
1355 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1356 | ||
1357 | rgb = XCDR (XCDR (color_desc)); | |
1358 | if (! parse_rgb_list (rgb, tty_color)) | |
1359 | return 0; | |
1360 | ||
1361 | /* Should we fill in STD_COLOR too? */ | |
1362 | if (std_color) | |
1363 | { | |
1364 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1365 | *std_color = *tty_color; | |
1366 | ||
1367 | /* Do a quick check to see if the returned descriptor is | |
1368 | actually _exactly_ equal to COLOR, otherwise we have to | |
1369 | lookup STD_COLOR separately. If it's impossible to lookup | |
1370 | a standard color, we just give up and use TTY_COLOR. */ | |
1371 | if ((!STRINGP (XCAR (color_desc)) | |
1372 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1373 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1374 | { |
1375 | /* Look up STD_COLOR separately. */ | |
1376 | rgb = call1 (Qtty_color_standard_values, color); | |
1377 | if (! parse_rgb_list (rgb, std_color)) | |
1378 | return 0; | |
1379 | } | |
1380 | } | |
1381 | ||
1382 | return 1; | |
1383 | } | |
1384 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1385 | /* We were called early during startup, and the colors are not | |
1386 | yet set up in tty-defined-color-alist. Don't return a failure | |
1387 | indication, since this produces the annoying "Unable to | |
1388 | load color" messages in the *Messages* buffer. */ | |
1389 | return 1; | |
1390 | else | |
1391 | /* tty-color-desc seems to have returned a bad value. */ | |
1392 | return 0; | |
1393 | } | |
1394 | ||
2d764c78 | 1395 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1396 | |
2d764c78 EZ |
1397 | int |
1398 | tty_defined_color (f, color_name, color_def, alloc) | |
1399 | struct frame *f; | |
1400 | char *color_name; | |
1401 | XColor *color_def; | |
1402 | int alloc; | |
1403 | { | |
2d764c78 EZ |
1404 | int status = 1; |
1405 | ||
b35df831 | 1406 | /* Defaults. */ |
177c0ea7 | 1407 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1408 | color_def->red = 0; |
1409 | color_def->blue = 0; | |
1410 | color_def->green = 0; | |
a61c12d5 | 1411 | |
b35df831 | 1412 | if (*color_name) |
3062711f | 1413 | status = tty_lookup_color (f, build_string (color_name), color_def, NULL); |
b35df831 MB |
1414 | |
1415 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1416 | { |
1417 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1418 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1419 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1420 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1421 | } |
1422 | ||
b35df831 | 1423 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1424 | status = 1; |
1425 | ||
2d764c78 EZ |
1426 | return status; |
1427 | } | |
1428 | ||
08dc08dc GM |
1429 | |
1430 | /* Decide if color named COLOR_NAME is valid for the display | |
1431 | associated with the frame F; if so, return the rgb values in | |
1432 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1433 | |
1434 | This does the right thing for any type of frame. */ | |
08dc08dc | 1435 | |
2d764c78 EZ |
1436 | int |
1437 | defined_color (f, color_name, color_def, alloc) | |
1438 | struct frame *f; | |
1439 | char *color_name; | |
1440 | XColor *color_def; | |
1441 | int alloc; | |
1442 | { | |
1443 | if (!FRAME_WINDOW_P (f)) | |
1444 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1445 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1446 | else if (FRAME_X_P (f)) |
1447 | return x_defined_color (f, color_name, color_def, alloc); | |
1448 | #endif | |
1449 | #ifdef WINDOWSNT | |
1450 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1451 | return w32_defined_color (f, color_name, color_def, alloc); |
1452 | #endif | |
e0f712ba | 1453 | #ifdef MAC_OS |
2d764c78 | 1454 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1455 | return mac_defined_color (f, color_name, color_def, alloc); |
1456 | #endif | |
1457 | else | |
1458 | abort (); | |
1459 | } | |
1460 | ||
08dc08dc GM |
1461 | |
1462 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1463 | Lisp string. */ | |
2d764c78 EZ |
1464 | |
1465 | Lisp_Object | |
1466 | tty_color_name (f, idx) | |
1467 | struct frame *f; | |
1468 | int idx; | |
1469 | { | |
2d764c78 EZ |
1470 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1471 | { | |
a61c12d5 EZ |
1472 | Lisp_Object frame; |
1473 | Lisp_Object coldesc; | |
1474 | ||
1475 | XSETFRAME (frame, f); | |
1476 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1477 | |
1478 | if (!NILP (coldesc)) | |
1479 | return XCAR (coldesc); | |
1480 | } | |
1481 | #ifdef MSDOS | |
1482 | /* We can have an MSDOG frame under -nw for a short window of | |
1483 | opportunity before internal_terminal_init is called. DTRT. */ | |
1484 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1485 | return msdos_stdcolor_name (idx); | |
1486 | #endif | |
1487 | ||
ef917393 EZ |
1488 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1489 | return build_string (unspecified_fg); | |
1490 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1491 | return build_string (unspecified_bg); | |
c3cee013 JR |
1492 | |
1493 | #ifdef WINDOWSNT | |
1494 | return vga_stdcolor_name (idx); | |
1495 | #endif | |
1496 | ||
ef917393 | 1497 | return Qunspecified; |
2d764c78 | 1498 | } |
82641697 | 1499 | |
08dc08dc | 1500 | |
82641697 | 1501 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1502 | black) on frame F. |
1503 | ||
1504 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1505 | |
1506 | static int | |
1507 | face_color_gray_p (f, color_name) | |
1508 | struct frame *f; | |
1509 | char *color_name; | |
1510 | { | |
1511 | XColor color; | |
1512 | int gray_p; | |
1513 | ||
1514 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1515 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1516 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1517 | || | |
1518 | ((abs (color.red - color.green) | |
1519 | < max (color.red, color.green) / 20) | |
1520 | && (abs (color.green - color.blue) | |
1521 | < max (color.green, color.blue) / 20) | |
1522 | && (abs (color.blue - color.red) | |
1523 | < max (color.blue, color.red) / 20))); | |
87485d6f | 1524 | else |
82641697 | 1525 | gray_p = 0; |
178c5d9c | 1526 | |
82641697 | 1527 | return gray_p; |
87485d6f | 1528 | } |
87485d6f | 1529 | |
cb637678 | 1530 | |
82641697 GM |
1531 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1532 | BACKGROUND_P non-zero means the color will be used as background | |
1533 | color. */ | |
1534 | ||
1535 | static int | |
1536 | face_color_supported_p (f, color_name, background_p) | |
1537 | struct frame *f; | |
1538 | char *color_name; | |
1539 | int background_p; | |
1540 | { | |
1541 | Lisp_Object frame; | |
2d764c78 | 1542 | XColor not_used; |
82641697 GM |
1543 | |
1544 | XSETFRAME (frame, f); | |
6b61353c | 1545 | return |
6a46b96b | 1546 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1547 | FRAME_WINDOW_P (f) |
1548 | ? (!NILP (Fxw_display_color_p (frame)) | |
1549 | || xstricmp (color_name, "black") == 0 | |
1550 | || xstricmp (color_name, "white") == 0 | |
1551 | || (background_p | |
1552 | && face_color_gray_p (f, color_name)) | |
1553 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1554 | && face_color_gray_p (f, color_name))) | |
1555 | : | |
1556 | #endif | |
1557 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1558 | } |
82641697 GM |
1559 | |
1560 | ||
da47150d | 1561 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1562 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1563 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1564 | If FRAME is nil or omitted, use the selected frame. */) |
1565 | (color, frame) | |
82641697 | 1566 | Lisp_Object color, frame; |
cb637678 | 1567 | { |
2d764c78 EZ |
1568 | struct frame *f; |
1569 | ||
b7826503 | 1570 | CHECK_STRING (color); |
6b61353c KH |
1571 | if (NILP (frame)) |
1572 | frame = selected_frame; | |
1573 | else | |
1574 | CHECK_FRAME (frame); | |
2d764c78 | 1575 | f = XFRAME (frame); |
d5db4077 | 1576 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1577 | } |
660ed669 | 1578 | |
fffc2367 | 1579 | |
da47150d | 1580 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1581 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1582 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1583 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1584 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1585 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 MB |
1586 | COLOR must be a valid color name. */) |
1587 | (color, frame, background_p) | |
82641697 GM |
1588 | Lisp_Object frame, color, background_p; |
1589 | { | |
2d764c78 EZ |
1590 | struct frame *f; |
1591 | ||
b7826503 | 1592 | CHECK_STRING (color); |
6b61353c KH |
1593 | if (NILP (frame)) |
1594 | frame = selected_frame; | |
1595 | else | |
1596 | CHECK_FRAME (frame); | |
2d764c78 | 1597 | f = XFRAME (frame); |
d5db4077 | 1598 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1599 | return Qt; |
1600 | return Qnil; | |
1601 | } | |
7b37f67b | 1602 | |
08dc08dc | 1603 | |
82641697 GM |
1604 | /* Load color with name NAME for use by face FACE on frame F. |
1605 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1606 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1607 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1608 | pixel color. If color cannot be loaded, display a message, and | |
1609 | return the foreground, background or underline color of F, but | |
1610 | record that fact in flags of the face so that we don't try to free | |
1611 | these colors. */ | |
1612 | ||
44747bd0 | 1613 | unsigned long |
82641697 GM |
1614 | load_color (f, face, name, target_index) |
1615 | struct frame *f; | |
1616 | struct face *face; | |
1617 | Lisp_Object name; | |
1618 | enum lface_attribute_index target_index; | |
1619 | { | |
1620 | XColor color; | |
178c5d9c | 1621 | |
82641697 GM |
1622 | xassert (STRINGP (name)); |
1623 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1624 | || target_index == LFACE_BACKGROUND_INDEX | |
1625 | || target_index == LFACE_UNDERLINE_INDEX | |
1626 | || target_index == LFACE_OVERLINE_INDEX | |
1627 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1628 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1629 | |
82641697 GM |
1630 | /* if the color map is full, defined_color will return a best match |
1631 | to the values in an existing cell. */ | |
d5db4077 | 1632 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1633 | { |
2d764c78 | 1634 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1635 | |
82641697 | 1636 | switch (target_index) |
1120eb5e | 1637 | { |
82641697 GM |
1638 | case LFACE_FOREGROUND_INDEX: |
1639 | face->foreground_defaulted_p = 1; | |
1640 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1641 | break; | |
178c5d9c | 1642 | |
82641697 GM |
1643 | case LFACE_BACKGROUND_INDEX: |
1644 | face->background_defaulted_p = 1; | |
1645 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1646 | break; | |
178c5d9c | 1647 | |
82641697 GM |
1648 | case LFACE_UNDERLINE_INDEX: |
1649 | face->underline_defaulted_p = 1; | |
1650 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1651 | break; | |
178c5d9c | 1652 | |
82641697 GM |
1653 | case LFACE_OVERLINE_INDEX: |
1654 | face->overline_color_defaulted_p = 1; | |
1655 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1656 | break; |
178c5d9c | 1657 | |
82641697 GM |
1658 | case LFACE_STRIKE_THROUGH_INDEX: |
1659 | face->strike_through_color_defaulted_p = 1; | |
1660 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1661 | break; | |
178c5d9c | 1662 | |
82641697 GM |
1663 | case LFACE_BOX_INDEX: |
1664 | face->box_color_defaulted_p = 1; | |
1665 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1666 | break; | |
1667 | ||
1668 | default: | |
1669 | abort (); | |
1120eb5e | 1670 | } |
82641697 GM |
1671 | } |
1672 | #if GLYPH_DEBUG | |
1673 | else | |
1674 | ++ncolors_allocated; | |
1675 | #endif | |
178c5d9c | 1676 | |
82641697 GM |
1677 | return color.pixel; |
1678 | } | |
1120eb5e | 1679 | |
08dc08dc | 1680 | |
c3cee013 | 1681 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1682 | |
82641697 GM |
1683 | /* Load colors for face FACE which is used on frame F. Colors are |
1684 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1685 | of ATTRS. If the background color specified is not supported on F, | |
1686 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1687 | ||
1688 | static void | |
1689 | load_face_colors (f, face, attrs) | |
1690 | struct frame *f; | |
1691 | struct face *face; | |
1692 | Lisp_Object *attrs; | |
1693 | { | |
1694 | Lisp_Object fg, bg; | |
1695 | ||
1696 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1697 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1698 | ||
1699 | /* Swap colors if face is inverse-video. */ | |
1700 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1701 | { | |
1702 | Lisp_Object tmp; | |
1703 | tmp = fg; | |
1704 | fg = bg; | |
1705 | bg = tmp; | |
1706 | } | |
1707 | ||
1708 | /* Check for support for foreground, not for background because | |
1709 | face_color_supported_p is smart enough to know that grays are | |
1710 | "supported" as background because we are supposed to use stipple | |
1711 | for them. */ | |
d5db4077 | 1712 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1713 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1714 | { |
1715 | x_destroy_bitmap (f, face->stipple); | |
1716 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1717 | &face->pixmap_w, &face->pixmap_h); | |
1718 | } | |
82641697 | 1719 | |
be8a72f4 | 1720 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1721 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1722 | } |
1723 | ||
660ed669 | 1724 | |
82641697 | 1725 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1726 | |
cb637678 | 1727 | void |
82641697 | 1728 | unload_color (f, pixel) |
cb637678 | 1729 | struct frame *f; |
82641697 | 1730 | unsigned long pixel; |
cb637678 | 1731 | { |
c3cee013 | 1732 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1733 | if (pixel != -1) |
1734 | { | |
1735 | BLOCK_INPUT; | |
1736 | x_free_colors (f, &pixel, 1); | |
1737 | UNBLOCK_INPUT; | |
1738 | } | |
c3cee013 | 1739 | #endif |
82641697 GM |
1740 | } |
1741 | ||
1742 | ||
1743 | /* Free colors allocated for FACE. */ | |
1744 | ||
1745 | static void | |
1746 | free_face_colors (f, face) | |
1747 | struct frame *f; | |
1748 | struct face *face; | |
1749 | { | |
c3cee013 | 1750 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1751 | if (face->colors_copied_bitwise_p) |
1752 | return; | |
1753 | ||
08dc08dc | 1754 | BLOCK_INPUT; |
178c5d9c | 1755 | |
08dc08dc GM |
1756 | if (!face->foreground_defaulted_p) |
1757 | { | |
1758 | x_free_colors (f, &face->foreground, 1); | |
1759 | IF_DEBUG (--ncolors_allocated); | |
1760 | } | |
178c5d9c | 1761 | |
08dc08dc GM |
1762 | if (!face->background_defaulted_p) |
1763 | { | |
1764 | x_free_colors (f, &face->background, 1); | |
1765 | IF_DEBUG (--ncolors_allocated); | |
1766 | } | |
82641697 | 1767 | |
08dc08dc GM |
1768 | if (face->underline_p |
1769 | && !face->underline_defaulted_p) | |
1770 | { | |
1771 | x_free_colors (f, &face->underline_color, 1); | |
1772 | IF_DEBUG (--ncolors_allocated); | |
1773 | } | |
82641697 | 1774 | |
08dc08dc GM |
1775 | if (face->overline_p |
1776 | && !face->overline_color_defaulted_p) | |
1777 | { | |
1778 | x_free_colors (f, &face->overline_color, 1); | |
1779 | IF_DEBUG (--ncolors_allocated); | |
1780 | } | |
82641697 | 1781 | |
08dc08dc GM |
1782 | if (face->strike_through_p |
1783 | && !face->strike_through_color_defaulted_p) | |
1784 | { | |
1785 | x_free_colors (f, &face->strike_through_color, 1); | |
1786 | IF_DEBUG (--ncolors_allocated); | |
1787 | } | |
82641697 | 1788 | |
08dc08dc GM |
1789 | if (face->box != FACE_NO_BOX |
1790 | && !face->box_color_defaulted_p) | |
1791 | { | |
1792 | x_free_colors (f, &face->box_color, 1); | |
1793 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1794 | } |
08dc08dc GM |
1795 | |
1796 | UNBLOCK_INPUT; | |
2d764c78 | 1797 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1798 | } |
08dc08dc | 1799 | |
c3cee013 | 1800 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1801 | |
1802 | ||
1803 | \f | |
1804 | /*********************************************************************** | |
1805 | XLFD Font Names | |
1806 | ***********************************************************************/ | |
1807 | ||
1808 | /* An enumerator for each field of an XLFD font name. */ | |
1809 | ||
1810 | enum xlfd_field | |
1811 | { | |
1812 | XLFD_FOUNDRY, | |
1813 | XLFD_FAMILY, | |
1814 | XLFD_WEIGHT, | |
1815 | XLFD_SLANT, | |
1816 | XLFD_SWIDTH, | |
1817 | XLFD_ADSTYLE, | |
1818 | XLFD_PIXEL_SIZE, | |
1819 | XLFD_POINT_SIZE, | |
1820 | XLFD_RESX, | |
1821 | XLFD_RESY, | |
1822 | XLFD_SPACING, | |
1823 | XLFD_AVGWIDTH, | |
1824 | XLFD_REGISTRY, | |
1825 | XLFD_ENCODING, | |
1826 | XLFD_LAST | |
1827 | }; | |
1828 | ||
178c5d9c | 1829 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1830 | the XLFD specification. */ |
1831 | ||
1832 | enum xlfd_slant | |
1833 | { | |
1834 | XLFD_SLANT_UNKNOWN, | |
1835 | XLFD_SLANT_ROMAN, | |
1836 | XLFD_SLANT_ITALIC, | |
1837 | XLFD_SLANT_OBLIQUE, | |
1838 | XLFD_SLANT_REVERSE_ITALIC, | |
1839 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1840 | XLFD_SLANT_OTHER | |
1841 | }; | |
1842 | ||
1843 | /* Relative font weight according to XLFD documentation. */ | |
1844 | ||
1845 | enum xlfd_weight | |
1846 | { | |
1847 | XLFD_WEIGHT_UNKNOWN, | |
1848 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1849 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1850 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1851 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1852 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1853 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1854 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1855 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1856 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1857 | }; | |
1858 | ||
1859 | /* Relative proportionate width. */ | |
1860 | ||
1861 | enum xlfd_swidth | |
1862 | { | |
1863 | XLFD_SWIDTH_UNKNOWN, | |
1864 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1865 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1866 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1867 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1868 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1869 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1870 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1871 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1872 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1873 | }; | |
1874 | ||
1875 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1876 | names to numeric and symbolic values. */ | |
1877 | ||
1878 | struct table_entry | |
1879 | { | |
1880 | char *name; | |
1881 | int numeric; | |
1882 | Lisp_Object *symbol; | |
1883 | }; | |
1884 | ||
1885 | /* Table of XLFD slant names and their numeric and symbolic | |
1886 | representations. This table must be sorted by slant names in | |
1887 | ascending order. */ | |
1888 | ||
1889 | static struct table_entry slant_table[] = | |
1890 | { | |
1891 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1892 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1893 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1894 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1895 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1896 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1897 | }; | |
1898 | ||
1899 | /* Table of XLFD weight names. This table must be sorted by weight | |
1900 | names in ascending order. */ | |
1901 | ||
1902 | static struct table_entry weight_table[] = | |
1903 | { | |
1904 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1905 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1906 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1907 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1908 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1909 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1910 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1911 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1912 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1913 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1914 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1915 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1916 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1917 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1918 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1919 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1920 | }; | |
1921 | ||
1922 | /* Table of XLFD width names. This table must be sorted by width | |
1923 | names in ascending order. */ | |
1924 | ||
1925 | static struct table_entry swidth_table[] = | |
1926 | { | |
1927 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1928 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1929 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1930 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1931 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1932 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1933 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1934 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1935 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1936 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1937 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1938 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1939 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1940 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1941 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1942 | }; | |
1943 | ||
1944 | /* Structure used to hold the result of splitting font names in XLFD | |
1945 | format into their fields. */ | |
1946 | ||
1947 | struct font_name | |
1948 | { | |
1949 | /* The original name which is modified destructively by | |
1950 | split_font_name. The pointer is kept here to be able to free it | |
1951 | if it was allocated from the heap. */ | |
1952 | char *name; | |
1953 | ||
1954 | /* Font name fields. Each vector element points into `name' above. | |
1955 | Fields are NUL-terminated. */ | |
1956 | char *fields[XLFD_LAST]; | |
1957 | ||
1958 | /* Numeric values for those fields that interest us. See | |
1959 | split_font_name for which these are. */ | |
1960 | int numeric[XLFD_LAST]; | |
8e1b21a7 | 1961 | |
f70400f2 KH |
1962 | /* If the original name matches one of Vface_font_rescale_alist, |
1963 | the value is the corresponding rescale ratio. Otherwise, the | |
1964 | value is 1.0. */ | |
1965 | double rescale_ratio; | |
1966 | ||
8e1b21a7 KH |
1967 | /* Lower value mean higher priority. */ |
1968 | int registry_priority; | |
82641697 GM |
1969 | }; |
1970 | ||
1971 | /* The frame in effect when sorting font names. Set temporarily in | |
1972 | sort_fonts so that it is available in font comparison functions. */ | |
1973 | ||
1974 | static struct frame *font_frame; | |
1975 | ||
1976 | /* Order by which font selection chooses fonts. The default values | |
1977 | mean `first, find a best match for the font width, then for the | |
1978 | font height, then for weight, then for slant.' This variable can be | |
1979 | set via set-face-font-sort-order. */ | |
1980 | ||
e0f712ba | 1981 | #ifdef MAC_OS |
a08332c0 GM |
1982 | static int font_sort_order[4] = { |
1983 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1984 | }; | |
1a578e9b | 1985 | #else |
82641697 | 1986 | static int font_sort_order[4]; |
1a578e9b | 1987 | #endif |
82641697 GM |
1988 | |
1989 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1990 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1991 | is a pointer to the matching table entry or null if no table entry | |
1992 | matches. */ | |
1993 | ||
1994 | static struct table_entry * | |
1995 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1996 | struct table_entry *table; | |
1997 | int dim; | |
1998 | struct font_name *font; | |
1999 | int field_index; | |
2000 | { | |
2001 | /* Function split_font_name converts fields to lower-case, so there | |
2002 | is no need to use xstrlwr or xstricmp here. */ | |
2003 | char *s = font->fields[field_index]; | |
2004 | int low, mid, high, cmp; | |
2005 | ||
2006 | low = 0; | |
2007 | high = dim - 1; | |
2008 | ||
2009 | while (low <= high) | |
2010 | { | |
2011 | mid = (low + high) / 2; | |
2012 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 2013 | |
82641697 GM |
2014 | if (cmp < 0) |
2015 | low = mid + 1; | |
2016 | else if (cmp > 0) | |
2017 | high = mid - 1; | |
2018 | else | |
2019 | return table + mid; | |
2020 | } | |
2021 | ||
2022 | return NULL; | |
2023 | } | |
2024 | ||
2025 | ||
2026 | /* Return a numeric representation for font name field | |
2027 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2028 | has DIM entries. Value is the numeric value found or DFLT if no | |
2029 | table entry matches. This function is used to translate weight, | |
2030 | slant, and swidth names of XLFD font names to numeric values. */ | |
2031 | ||
2032 | static INLINE int | |
2033 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2034 | struct table_entry *table; | |
2035 | int dim; | |
2036 | struct font_name *font; | |
2037 | int field_index; | |
2038 | int dflt; | |
2039 | { | |
2040 | struct table_entry *p; | |
2041 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2042 | return p ? p->numeric : dflt; | |
2043 | } | |
2044 | ||
2045 | ||
2046 | /* Return a symbolic representation for font name field | |
2047 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2048 | has DIM entries. Value is the symbolic value found or DFLT if no | |
2049 | table entry matches. This function is used to translate weight, | |
2050 | slant, and swidth names of XLFD font names to symbols. */ | |
2051 | ||
2052 | static INLINE Lisp_Object | |
2053 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2054 | struct table_entry *table; | |
2055 | int dim; | |
2056 | struct font_name *font; | |
2057 | int field_index; | |
6fc556fd | 2058 | Lisp_Object dflt; |
82641697 GM |
2059 | { |
2060 | struct table_entry *p; | |
2061 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2062 | return p ? *p->symbol : dflt; | |
2063 | } | |
2064 | ||
2065 | ||
2066 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2067 | ||
2068 | static INLINE int | |
2069 | xlfd_numeric_slant (font) | |
2070 | struct font_name *font; | |
2071 | { | |
2072 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2073 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2074 | } | |
2075 | ||
2076 | ||
2077 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2078 | ||
2079 | static INLINE Lisp_Object | |
2080 | xlfd_symbolic_slant (font) | |
2081 | struct font_name *font; | |
2082 | { | |
2083 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2084 | font, XLFD_SLANT, Qnormal); | |
2085 | } | |
2086 | ||
2087 | ||
2088 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2089 | ||
2090 | static INLINE int | |
2091 | xlfd_numeric_weight (font) | |
2092 | struct font_name *font; | |
2093 | { | |
2094 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2095 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2096 | } | |
2097 | ||
2098 | ||
2099 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2100 | ||
2101 | static INLINE Lisp_Object | |
2102 | xlfd_symbolic_weight (font) | |
2103 | struct font_name *font; | |
2104 | { | |
2105 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2106 | font, XLFD_WEIGHT, Qnormal); | |
2107 | } | |
2108 | ||
2109 | ||
2110 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2111 | name fields are found in FONT. */ | |
2112 | ||
2113 | static INLINE int | |
2114 | xlfd_numeric_swidth (font) | |
2115 | struct font_name *font; | |
2116 | { | |
2117 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2118 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2119 | } | |
2120 | ||
2121 | ||
2122 | /* Return a symbolic value for the swidth of FONT. */ | |
2123 | ||
2124 | static INLINE Lisp_Object | |
2125 | xlfd_symbolic_swidth (font) | |
2126 | struct font_name *font; | |
2127 | { | |
2128 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2129 | font, XLFD_SWIDTH, Qnormal); | |
2130 | } | |
178c5d9c | 2131 | |
82641697 GM |
2132 | |
2133 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2134 | entries. Value is a pointer to the matching table entry or null if | |
2135 | no element of TABLE contains SYMBOL. */ | |
2136 | ||
2137 | static struct table_entry * | |
2138 | face_value (table, dim, symbol) | |
2139 | struct table_entry *table; | |
2140 | int dim; | |
2141 | Lisp_Object symbol; | |
2142 | { | |
2143 | int i; | |
2144 | ||
2145 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2146 | |
82641697 GM |
2147 | for (i = 0; i < dim; ++i) |
2148 | if (EQ (*table[i].symbol, symbol)) | |
2149 | break; | |
2150 | ||
2151 | return i < dim ? table + i : NULL; | |
2152 | } | |
2153 | ||
2154 | ||
2155 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2156 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2157 | ||
2158 | static INLINE int | |
2159 | face_numeric_value (table, dim, symbol) | |
2160 | struct table_entry *table; | |
3062711f | 2161 | size_t dim; |
82641697 GM |
2162 | Lisp_Object symbol; |
2163 | { | |
2164 | struct table_entry *p = face_value (table, dim, symbol); | |
2165 | return p ? p->numeric : -1; | |
2166 | } | |
2167 | ||
2168 | ||
2169 | /* Return a numeric value representing the weight specified by Lisp | |
2170 | symbol WEIGHT. Value is one of the enumerators of enum | |
2171 | xlfd_weight. */ | |
2172 | ||
2173 | static INLINE int | |
2174 | face_numeric_weight (weight) | |
2175 | Lisp_Object weight; | |
2176 | { | |
2177 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2178 | } | |
2179 | ||
2180 | ||
2181 | /* Return a numeric value representing the slant specified by Lisp | |
2182 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2183 | ||
2184 | static INLINE int | |
2185 | face_numeric_slant (slant) | |
2186 | Lisp_Object slant; | |
2187 | { | |
2188 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2189 | } | |
2190 | ||
2191 | ||
2192 | /* Return a numeric value representing the swidth specified by Lisp | |
2193 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2194 | ||
2195 | static int | |
2196 | face_numeric_swidth (width) | |
2197 | Lisp_Object width; | |
2198 | { | |
2199 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2200 | } | |
2201 | ||
8c6204de KH |
2202 | #ifdef HAVE_WINDOW_SYSTEM |
2203 | ||
426b2119 KH |
2204 | #ifdef USE_FONT_BACKEND |
2205 | static INLINE Lisp_Object | |
2206 | face_symbolic_value (table, dim, font_prop) | |
2207 | struct table_entry *table; | |
2208 | int dim; | |
2209 | Lisp_Object font_prop; | |
2210 | { | |
2211 | struct table_entry *p; | |
2212 | char *s = SDATA (SYMBOL_NAME (font_prop)); | |
2213 | int low, mid, high, cmp; | |
2214 | ||
2215 | low = 0; | |
2216 | high = dim - 1; | |
2217 | ||
2218 | while (low <= high) | |
2219 | { | |
2220 | mid = (low + high) / 2; | |
2221 | cmp = strcmp (table[mid].name, s); | |
2222 | ||
2223 | if (cmp < 0) | |
2224 | low = mid + 1; | |
2225 | else if (cmp > 0) | |
2226 | high = mid - 1; | |
2227 | else | |
2228 | return *table[mid].symbol; | |
2229 | } | |
2230 | ||
2231 | return Qnil; | |
2232 | } | |
2233 | ||
2234 | static INLINE Lisp_Object | |
2235 | face_symbolic_weight (weight) | |
2236 | Lisp_Object weight; | |
2237 | { | |
2238 | return face_symbolic_value (weight_table, DIM (weight_table), weight); | |
2239 | } | |
2240 | ||
2241 | static INLINE Lisp_Object | |
2242 | face_symbolic_slant (slant) | |
2243 | Lisp_Object slant; | |
2244 | { | |
2245 | return face_symbolic_value (slant_table, DIM (slant_table), slant); | |
2246 | } | |
2247 | ||
2248 | static INLINE Lisp_Object | |
2249 | face_symbolic_swidth (width) | |
2250 | Lisp_Object width; | |
2251 | { | |
2252 | return face_symbolic_value (swidth_table, DIM (swidth_table), width); | |
2253 | } | |
2254 | #endif /* USE_FONT_BACKEND */ | |
2255 | ||
81b39386 | 2256 | Lisp_Object |
154c2d39 KH |
2257 | split_font_name_into_vector (fontname) |
2258 | Lisp_Object fontname; | |
81b39386 KH |
2259 | { |
2260 | struct font_name font; | |
154c2d39 KH |
2261 | Lisp_Object vec; |
2262 | int i; | |
81b39386 | 2263 | |
154c2d39 | 2264 | font.name = LSTRDUPA (fontname); |
81b39386 KH |
2265 | if (! split_font_name (NULL, &font, 0)) |
2266 | return Qnil; | |
154c2d39 KH |
2267 | vec = Fmake_vector (make_number (XLFD_LAST), Qnil); |
2268 | for (i = 0; i < XLFD_LAST; i++) | |
2269 | if (font.fields[i][0] != '*') | |
2270 | ASET (vec, i, build_string (font.fields[i])); | |
2271 | return vec; | |
2272 | } | |
81b39386 | 2273 | |
154c2d39 KH |
2274 | Lisp_Object |
2275 | build_font_name_from_vector (vec) | |
2276 | Lisp_Object vec; | |
2277 | { | |
2278 | struct font_name font; | |
2279 | Lisp_Object fontname; | |
2280 | char *p; | |
2281 | int i; | |
2282 | ||
2283 | for (i = 0; i < XLFD_LAST; i++) | |
81b39386 | 2284 | { |
154c2d39 | 2285 | font.fields[i] = (NILP (AREF (vec, i)) |
8f924df7 | 2286 | ? "*" : (char *) SDATA (AREF (vec, i))); |
154c2d39 KH |
2287 | if ((i == XLFD_FAMILY || i == XLFD_REGISTRY) |
2288 | && (p = strchr (font.fields[i], '-'))) | |
81b39386 | 2289 | { |
154c2d39 KH |
2290 | char *p1 = STRDUPA (font.fields[i]); |
2291 | ||
2292 | p1[p - font.fields[i]] = '\0'; | |
2293 | if (i == XLFD_FAMILY) | |
2294 | { | |
2295 | font.fields[XLFD_FOUNDRY] = p1; | |
2296 | font.fields[XLFD_FAMILY] = p + 1; | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | font.fields[XLFD_REGISTRY] = p1; | |
2301 | font.fields[XLFD_ENCODING] = p + 1; | |
2302 | break; | |
2303 | } | |
81b39386 KH |
2304 | } |
2305 | } | |
81b39386 KH |
2306 | |
2307 | p = build_font_name (&font); | |
154c2d39 | 2308 | fontname = build_string (p); |
81b39386 | 2309 | xfree (p); |
154c2d39 | 2310 | return fontname; |
af53b43c | 2311 | } |
82641697 | 2312 | |
82641697 GM |
2313 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ |
2314 | ||
2315 | static INLINE int | |
2316 | xlfd_fixed_p (font) | |
2317 | struct font_name *font; | |
2318 | { | |
2319 | /* Function split_font_name converts fields to lower-case, so there | |
2320 | is no need to use tolower here. */ | |
2321 | return *font->fields[XLFD_SPACING] != 'p'; | |
2322 | } | |
2323 | ||
2324 | ||
2325 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2326 | ||
2327 | The actual height of the font when displayed on F depends on the | |
2328 | resolution of both the font and frame. For example, a 10pt font | |
2329 | designed for a 100dpi display will display larger than 10pt on a | |
2330 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2331 | display one is using. For example, some intlfonts are available in | |
2332 | 72dpi versions, only.) | |
2333 | ||
2334 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
4ab1b919 KH |
2335 | be determined. |
2336 | ||
2337 | By side effect, set FONT->numeric[XLFD_PIXEL_SIZE]. */ | |
82641697 GM |
2338 | |
2339 | static INLINE int | |
2340 | xlfd_point_size (f, font) | |
2341 | struct frame *f; | |
2342 | struct font_name *font; | |
2343 | { | |
2344 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2345 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2346 | double pixel; | |
82641697 GM |
2347 | int real_pt; |
2348 | ||
933b0249 GM |
2349 | if (*pixel_field == '[') |
2350 | { | |
2351 | /* The pixel size field is `[A B C D]' which specifies | |
2352 | a transformation matrix. | |
2353 | ||
2354 | A B 0 | |
2355 | C D 0 | |
2356 | 0 0 1 | |
2357 | ||
2358 | by which all glyphs of the font are transformed. The spec | |
2359 | says that s scalar value N for the pixel size is equivalent | |
2360 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2361 | char *start = pixel_field + 1, *end; | |
2362 | double matrix[4]; | |
2363 | int i; | |
2364 | ||
2365 | for (i = 0; i < 4; ++i) | |
2366 | { | |
2367 | matrix[i] = strtod (start, &end); | |
2368 | start = end; | |
2369 | } | |
2370 | ||
7eb4b061 | 2371 | pixel = matrix[3]; |
933b0249 GM |
2372 | } |
2373 | else | |
2374 | pixel = atoi (pixel_field); | |
177c0ea7 | 2375 | |
4ab1b919 | 2376 | font->numeric[XLFD_PIXEL_SIZE] = pixel; |
933b0249 | 2377 | if (pixel == 0) |
82641697 GM |
2378 | real_pt = 0; |
2379 | else | |
933b0249 | 2380 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2381 | |
2382 | return real_pt; | |
2383 | } | |
2384 | ||
2385 | ||
39506348 KH |
2386 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2387 | of frame F. This function is used to guess a point size of font | |
2388 | when only the pixel height of the font is available. */ | |
2389 | ||
2390 | static INLINE int | |
2391 | pixel_point_size (f, pixel) | |
2392 | struct frame *f; | |
2393 | int pixel; | |
2394 | { | |
2395 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2396 | double real_pt; | |
2397 | int int_pt; | |
2398 | ||
c660ce4e GM |
2399 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2400 | point size of one dot. */ | |
2401 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2402 | int_pt = real_pt + 0.5; |
2403 | ||
2404 | return int_pt; | |
2405 | } | |
2406 | ||
2407 | ||
f70400f2 KH |
2408 | /* Return a rescaling ratio of a font of NAME. */ |
2409 | ||
2410 | static double | |
f0d62075 DL |
2411 | font_rescale_ratio (name) |
2412 | char *name; | |
f70400f2 | 2413 | { |
8f924df7 | 2414 | Lisp_Object tail, elt; |
f70400f2 KH |
2415 | |
2416 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2417 | { | |
2418 | elt = XCAR (tail); | |
2419 | if (STRINGP (XCAR (elt)) && FLOATP (XCDR (elt)) | |
2420 | && fast_c_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2421 | return XFLOAT_DATA (XCDR (elt)); | |
2422 | } | |
2423 | return 1.0; | |
2424 | } | |
2425 | ||
2426 | ||
82641697 GM |
2427 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2428 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2429 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2430 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2431 | zero if the font name doesn't have the format we expect. The | |
2432 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2433 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2434 | |
2435 | static int | |
2436 | split_font_name (f, font, numeric_p) | |
2437 | struct frame *f; | |
2438 | struct font_name *font; | |
2439 | int numeric_p; | |
2440 | { | |
2441 | int i = 0; | |
2442 | int success_p; | |
f70400f2 KH |
2443 | double rescale_ratio; |
2444 | ||
2445 | if (numeric_p) | |
2446 | /* This must be done before splitting the font name. */ | |
2447 | rescale_ratio = font_rescale_ratio (font->name); | |
82641697 GM |
2448 | |
2449 | if (*font->name == '-') | |
2450 | { | |
2451 | char *p = xstrlwr (font->name) + 1; | |
2452 | ||
7b16a6bf | 2453 | while (i < XLFD_LAST) |
82641697 GM |
2454 | { |
2455 | font->fields[i] = p; | |
7b16a6bf | 2456 | ++i; |
933b0249 GM |
2457 | |
2458 | /* Pixel and point size may be of the form `[....]'. For | |
2459 | BNF, see XLFD spec, chapter 4. Negative values are | |
2460 | indicated by tilde characters which we replace with | |
2461 | `-' characters, here. */ | |
2462 | if (*p == '[' | |
d5188d8c GM |
2463 | && (i - 1 == XLFD_PIXEL_SIZE |
2464 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2465 | { |
2466 | char *start, *end; | |
2467 | int j; | |
177c0ea7 | 2468 | |
933b0249 GM |
2469 | for (++p; *p && *p != ']'; ++p) |
2470 | if (*p == '~') | |
2471 | *p = '-'; | |
2472 | ||
2473 | /* Check that the matrix contains 4 floating point | |
2474 | numbers. */ | |
3849cbf4 | 2475 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2476 | j < 4; |
2477 | ++j, start = end) | |
2478 | if (strtod (start, &end) == 0 && start == end) | |
2479 | break; | |
2480 | ||
2481 | if (j < 4) | |
2482 | break; | |
2483 | } | |
178c5d9c | 2484 | |
82641697 GM |
2485 | while (*p && *p != '-') |
2486 | ++p; | |
178c5d9c | 2487 | |
82641697 GM |
2488 | if (*p != '-') |
2489 | break; | |
178c5d9c | 2490 | |
82641697 GM |
2491 | *p++ = 0; |
2492 | } | |
2493 | } | |
2494 | ||
2495 | success_p = i == XLFD_LAST; | |
2496 | ||
2497 | /* If requested, and font name was in the expected format, | |
2498 | compute numeric values for some fields. */ | |
2499 | if (numeric_p && success_p) | |
2500 | { | |
2501 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2502 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2503 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2504 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2505 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2506 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
f70400f2 | 2507 | font->rescale_ratio = rescale_ratio; |
82641697 GM |
2508 | } |
2509 | ||
8e1b21a7 KH |
2510 | /* Initialize it to zero. It will be overridden by font_list while |
2511 | trying alternate registries. */ | |
2512 | font->registry_priority = 0; | |
2513 | ||
82641697 GM |
2514 | return success_p; |
2515 | } | |
2516 | ||
2517 | ||
2518 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2519 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2520 | |
82641697 GM |
2521 | static char * |
2522 | build_font_name (font) | |
2523 | struct font_name *font; | |
2524 | { | |
2525 | int i; | |
2526 | int size = 100; | |
2527 | char *font_name = (char *) xmalloc (size); | |
2528 | int total_length = 0; | |
2529 | ||
2530 | for (i = 0; i < XLFD_LAST; ++i) | |
2531 | { | |
2532 | /* Add 1 because of the leading `-'. */ | |
2533 | int len = strlen (font->fields[i]) + 1; | |
2534 | ||
2535 | /* Reallocate font_name if necessary. Add 1 for the final | |
2536 | NUL-byte. */ | |
2537 | if (total_length + len + 1 >= size) | |
2538 | { | |
2539 | int new_size = max (2 * size, size + len + 1); | |
2540 | int sz = new_size * sizeof *font_name; | |
2541 | font_name = (char *) xrealloc (font_name, sz); | |
2542 | size = new_size; | |
2543 | } | |
2544 | ||
2545 | font_name[total_length] = '-'; | |
2546 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2547 | total_length += len; | |
2548 | } | |
2549 | ||
2550 | font_name[total_length] = 0; | |
2551 | return font_name; | |
2552 | } | |
2553 | ||
2554 | ||
2555 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2556 | itself and all `name' fields in its elements. */ | |
2557 | ||
2558 | static INLINE void | |
2559 | free_font_names (fonts, n) | |
2560 | struct font_name *fonts; | |
2561 | int n; | |
2562 | { | |
2563 | while (n) | |
2564 | xfree (fonts[--n].name); | |
2565 | xfree (fonts); | |
2566 | } | |
2567 | ||
2568 | ||
2569 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2570 | elements using qsort and comparison function CMPFN. F is the frame | |
2571 | on which the fonts will be used. The global variable font_frame | |
2572 | is temporarily set to F to make it available in CMPFN. */ | |
2573 | ||
2574 | static INLINE void | |
2575 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2576 | struct frame *f; | |
2577 | struct font_name *fonts; | |
2578 | int nfonts; | |
2579 | int (*cmpfn) P_ ((const void *, const void *)); | |
2580 | { | |
2581 | font_frame = f; | |
2582 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2583 | font_frame = NULL; | |
2584 | } | |
2585 | ||
2586 | ||
2587 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2588 | display in x_display_list. FONTS is a pointer to a vector of | |
2589 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2590 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2591 | found matching PATTERN. |
82641697 GM |
2592 | |
2593 | For all fonts found, set FONTS[i].name to the name of the font, | |
2594 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2595 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2596 | |
2597 | static int | |
ee5be7c3 | 2598 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2599 | struct frame *f; |
2600 | char *pattern; | |
ee5be7c3 | 2601 | struct font_name **pfonts; |
82641697 | 2602 | int nfonts, try_alternatives_p; |
82641697 | 2603 | { |
702a1e8e | 2604 | int n, nignored; |
82641697 | 2605 | |
c3cee013 JR |
2606 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2607 | better to do it the other way around. */ | |
2608 | Lisp_Object lfonts; | |
2609 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2610 | struct font_name *fonts = 0; |
2611 | int num_fonts = nfonts; | |
c3cee013 | 2612 | |
ee5be7c3 | 2613 | *pfonts = 0; |
c3cee013 JR |
2614 | lpattern = build_string (pattern); |
2615 | ||
2616 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2617 | #ifdef WINDOWSNT |
a86110a8 | 2618 | BLOCK_INPUT; |
c3cee013 | 2619 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2620 | UNBLOCK_INPUT; |
d26d6fd9 | 2621 | #else |
702a1e8e | 2622 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2623 | #endif |
c3cee013 | 2624 | |
ee5be7c3 | 2625 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2626 | num_fonts = XFASTINT (Flength (lfonts)); |
8f924df7 | 2627 | |
d26d6fd9 GM |
2628 | /* Make a copy of the font names we got from X, and |
2629 | split them into fields. */ | |
702a1e8e | 2630 | n = nignored = 0; |
ee5be7c3 | 2631 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2632 | { |
d26d6fd9 | 2633 | Lisp_Object elt, tail; |
53c208f6 | 2634 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2635 | |
702a1e8e | 2636 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2637 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2638 | { |
d26d6fd9 GM |
2639 | elt = XCAR (tail); |
2640 | if (STRINGP (elt) | |
2641 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2642 | break; | |
2643 | } | |
2644 | if (!NILP (tail)) | |
702a1e8e GM |
2645 | { |
2646 | ++nignored; | |
2647 | continue; | |
2648 | } | |
c824bfbc | 2649 | |
ee5be7c3 JD |
2650 | if (! fonts) |
2651 | { | |
2652 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2653 | fonts = *pfonts; | |
2654 | } | |
2655 | ||
d26d6fd9 GM |
2656 | /* Make a copy of the font name. */ |
2657 | fonts[n].name = xstrdup (name); | |
82641697 | 2658 | |
702a1e8e | 2659 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2660 | { |
702a1e8e GM |
2661 | if (font_scalable_p (fonts + n) |
2662 | && !may_use_scalable_font_p (name)) | |
2663 | { | |
2664 | ++nignored; | |
2665 | xfree (fonts[n].name); | |
2666 | } | |
82641697 | 2667 | else |
d26d6fd9 | 2668 | ++n; |
82641697 | 2669 | } |
d26d6fd9 | 2670 | else |
702a1e8e GM |
2671 | xfree (fonts[n].name); |
2672 | } | |
2673 | ||
82641697 GM |
2674 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2675 | if (n == 0 && try_alternatives_p) | |
2676 | { | |
2677 | Lisp_Object list = Valternate_fontname_alist; | |
2678 | ||
72ecb43c JD |
2679 | if (*pfonts) |
2680 | { | |
2681 | xfree (*pfonts); | |
2682 | *pfonts = 0; | |
2683 | } | |
2684 | ||
82641697 GM |
2685 | while (CONSP (list)) |
2686 | { | |
2687 | Lisp_Object entry = XCAR (list); | |
2688 | if (CONSP (entry) | |
2689 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2690 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2691 | break; |
2692 | list = XCDR (list); | |
2693 | } | |
2694 | ||
2695 | if (CONSP (list)) | |
2696 | { | |
2697 | Lisp_Object patterns = XCAR (list); | |
2698 | Lisp_Object name; | |
178c5d9c | 2699 | |
82641697 GM |
2700 | while (CONSP (patterns) |
2701 | /* If list is screwed up, give up. */ | |
2702 | && (name = XCAR (patterns), | |
2703 | STRINGP (name)) | |
2704 | /* Ignore patterns equal to PATTERN because we tried that | |
2705 | already with no success. */ | |
d5db4077 KR |
2706 | && (strcmp (SDATA (name), pattern) == 0 |
2707 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2708 | pfonts, nfonts, 0), |
82641697 GM |
2709 | n == 0))) |
2710 | patterns = XCDR (patterns); | |
2711 | } | |
2712 | } | |
178c5d9c | 2713 | |
82641697 GM |
2714 | return n; |
2715 | } | |
178c5d9c | 2716 | |
82641697 | 2717 | |
6b61353c KH |
2718 | /* Check if a font matching pattern_offset_t on frame F is available |
2719 | or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case, | |
2720 | a font name pattern is generated from FAMILY and REGISTRY. */ | |
2721 | ||
2722 | int | |
2723 | face_font_available_p (f, pattern) | |
2724 | struct frame *f; | |
2725 | Lisp_Object pattern; | |
2726 | { | |
2727 | Lisp_Object fonts; | |
2728 | ||
2729 | if (! STRINGP (pattern)) | |
2730 | { | |
2731 | Lisp_Object family, registry; | |
2732 | char *family_str, *registry_str, *pattern_str; | |
2733 | ||
2734 | CHECK_CONS (pattern); | |
2735 | family = XCAR (pattern); | |
2736 | if (NILP (family)) | |
2737 | family_str = "*"; | |
2738 | else | |
2739 | { | |
2740 | CHECK_STRING (family); | |
2741 | family_str = (char *) SDATA (family); | |
2742 | } | |
2743 | registry = XCDR (pattern); | |
2744 | if (NILP (registry)) | |
2745 | registry_str = "*"; | |
2746 | else | |
2747 | { | |
2748 | CHECK_STRING (registry); | |
2749 | registry_str = (char *) SDATA (registry); | |
2750 | } | |
2751 | ||
2752 | pattern_str = (char *) alloca (strlen (family_str) | |
2753 | + strlen (registry_str) | |
2754 | + 10); | |
2755 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2756 | strcat (pattern_str, family_str); | |
2757 | strcat (pattern_str, "-*-"); | |
2758 | strcat (pattern_str, registry_str); | |
2759 | if (!index (registry_str, '-')) | |
2760 | { | |
2761 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2762 | strcat (pattern_str, "-*"); | |
2763 | else | |
2764 | strcat (pattern_str, "*-*"); | |
2765 | } | |
2766 | pattern = build_string (pattern_str); | |
2767 | } | |
2768 | ||
2769 | /* Get the list of fonts matching PATTERN. */ | |
2770 | #ifdef WINDOWSNT | |
2771 | BLOCK_INPUT; | |
2772 | fonts = w32_list_fonts (f, pattern, 0, 1); | |
2773 | UNBLOCK_INPUT; | |
2774 | #else | |
2775 | fonts = x_list_fonts (f, pattern, -1, 1); | |
2776 | #endif | |
2777 | return XINT (Flength (fonts)); | |
2778 | } | |
2779 | ||
2780 | ||
82641697 GM |
2781 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2782 | using comparison function CMPFN. Value is the number of fonts | |
2783 | found. If value is non-zero, *FONTS is set to a vector of | |
2784 | font_name structures allocated from the heap containing matching | |
2785 | fonts. Each element of *FONTS contains a name member that is also | |
2786 | allocated from the heap. Font names in these structures are split | |
2787 | into fields. Use free_font_names to free such an array. */ | |
2788 | ||
2789 | static int | |
2790 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2791 | struct frame *f; | |
2792 | char *pattern; | |
2793 | int (*cmpfn) P_ ((const void *, const void *)); | |
2794 | struct font_name **fonts; | |
2795 | { | |
2796 | int nfonts; | |
178c5d9c | 2797 | |
82641697 | 2798 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2799 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2800 | if (INTEGERP (Vfont_list_limit)) |
2801 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2802 | |
ee5be7c3 JD |
2803 | *fonts = NULL; |
2804 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2805 | |
2806 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2807 | fonts were found, make sure to set *FONTS to null. */ |
2808 | if (nfonts) | |
2809 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2810 | else if (*fonts) |
82641697 GM |
2811 | { |
2812 | xfree (*fonts); | |
2813 | *fonts = NULL; | |
2814 | } | |
2815 | ||
2816 | return nfonts; | |
2817 | } | |
2818 | ||
2819 | ||
2820 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2821 | strcmp. Sort order is given by the global variable | |
2822 | font_sort_order. Font names are sorted so that, everything else | |
2823 | being equal, fonts with a resolution closer to that of the frame on | |
2824 | which they are used are listed first. The global variable | |
2825 | font_frame is the frame on which we operate. */ | |
2826 | ||
2827 | static int | |
2828 | cmp_font_names (a, b) | |
2829 | const void *a, *b; | |
2830 | { | |
2831 | struct font_name *x = (struct font_name *) a; | |
2832 | struct font_name *y = (struct font_name *) b; | |
2833 | int cmp; | |
2834 | ||
2835 | /* All strings have been converted to lower-case by split_font_name, | |
2836 | so we can use strcmp here. */ | |
2837 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2838 | if (cmp == 0) | |
2839 | { | |
2840 | int i; | |
178c5d9c | 2841 | |
82641697 GM |
2842 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2843 | { | |
2844 | int j = font_sort_order[i]; | |
2845 | cmp = x->numeric[j] - y->numeric[j]; | |
2846 | } | |
2847 | ||
2848 | if (cmp == 0) | |
2849 | { | |
2850 | /* Everything else being equal, we prefer fonts with an | |
2851 | y-resolution closer to that of the frame. */ | |
2852 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2853 | int x_resy = x->numeric[XLFD_RESY]; | |
2854 | int y_resy = y->numeric[XLFD_RESY]; | |
2855 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2856 | } | |
2857 | } | |
2858 | ||
2859 | return cmp; | |
2860 | } | |
2861 | ||
2862 | ||
8f924df7 KH |
2863 | /* Get a sorted list of fonts matching PATTERN on frame F. If PATTERN |
2864 | is nil, list fonts matching FAMILY and REGISTRY. FAMILY is a | |
2865 | family name string or nil. REGISTRY is a registry name string. | |
2866 | Set *FONTS to a vector of font_name structures allocated from the | |
2867 | heap containing the fonts found. Value is the number of fonts | |
2868 | found. */ | |
82641697 GM |
2869 | |
2870 | static int | |
32fcc231 | 2871 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2872 | struct frame *f; |
39506348 | 2873 | Lisp_Object pattern, family, registry; |
82641697 GM |
2874 | struct font_name **fonts; |
2875 | { | |
39506348 KH |
2876 | char *pattern_str, *family_str, *registry_str; |
2877 | ||
2878 | if (NILP (pattern)) | |
82641697 | 2879 | { |
d5db4077 KR |
2880 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2881 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2882 | |
39506348 | 2883 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2884 | + strlen (registry_str) |
2885 | + 10); | |
2886 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2887 | strcat (pattern_str, family_str); | |
2888 | strcat (pattern_str, "-*-"); | |
2889 | strcat (pattern_str, registry_str); | |
2890 | if (!index (registry_str, '-')) | |
2891 | { | |
2892 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2893 | strcat (pattern_str, "-*"); | |
2894 | else | |
2895 | strcat (pattern_str, "*-*"); | |
2896 | } | |
82641697 | 2897 | } |
39506348 | 2898 | else |
d5db4077 | 2899 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2900 | |
39506348 | 2901 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2902 | } |
2903 | ||
2904 | ||
8e1b21a7 KH |
2905 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2906 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2907 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2908 | freed. */ | |
2909 | ||
2910 | static struct font_name * | |
2911 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2912 | struct font_name *fonts1, *fonts2; | |
2913 | int nfonts1, nfonts2; | |
2914 | { | |
2915 | int new_nfonts = nfonts1 + nfonts2; | |
2916 | struct font_name *new_fonts; | |
2917 | ||
2918 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2919 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2920 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2921 | xfree (fonts1); | |
2922 | xfree (fonts2); | |
2923 | return new_fonts; | |
2924 | } | |
2925 | ||
2926 | ||
32fcc231 GM |
2927 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2928 | ||
af53b43c | 2929 | If PATTERN is non-nil, list fonts matching that pattern. |
32fcc231 | 2930 | |
154c2d39 KH |
2931 | If REGISTRY is non-nil, it is a list of registry (and encoding) |
2932 | names. Return fonts with those registries and the alternative | |
2933 | registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2934 | |
32fcc231 GM |
2935 | If REGISTRY is nil return fonts of any registry. |
2936 | ||
2937 | Set *FONTS to a vector of font_name structures allocated from the | |
2938 | heap containing the fonts found. Value is the number of fonts | |
2939 | found. */ | |
2940 | ||
2941 | static int | |
2942 | font_list (f, pattern, family, registry, fonts) | |
2943 | struct frame *f; | |
2944 | Lisp_Object pattern, family, registry; | |
2945 | struct font_name **fonts; | |
2946 | { | |
154c2d39 KH |
2947 | int nfonts; |
2948 | int reg_prio; | |
2949 | int i; | |
2950 | ||
2951 | if (NILP (registry)) | |
2952 | return font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2953 | |
154c2d39 | 2954 | for (reg_prio = 0, nfonts = 0; CONSP (registry); registry = XCDR (registry)) |
32fcc231 | 2955 | { |
154c2d39 KH |
2956 | Lisp_Object elt, alter; |
2957 | int nfonts2; | |
2958 | struct font_name *fonts2; | |
32fcc231 | 2959 | |
154c2d39 KH |
2960 | elt = XCAR (registry); |
2961 | alter = Fassoc (elt, Vface_alternative_font_registry_alist); | |
2962 | if (NILP (alter)) | |
2963 | alter = Fcons (elt, Qnil); | |
2964 | for (; CONSP (alter); alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2965 | { |
154c2d39 KH |
2966 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), &fonts2); |
2967 | if (nfonts2 > 0) | |
2968 | { | |
2969 | if (reg_prio > 0) | |
8e1b21a7 KH |
2970 | for (i = 0; i < nfonts2; i++) |
2971 | fonts2[i].registry_priority = reg_prio; | |
154c2d39 KH |
2972 | if (nfonts > 0) |
2973 | *fonts = concat_font_list (*fonts, nfonts, fonts2, nfonts2); | |
2974 | else | |
2975 | *fonts = fonts2; | |
2976 | nfonts += nfonts2; | |
2977 | } | |
32fcc231 GM |
2978 | } |
2979 | } | |
2980 | ||
2981 | return nfonts; | |
2982 | } | |
2983 | ||
2984 | ||
82641697 | 2985 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2986 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2987 | entries. */ |
2988 | ||
2989 | static void | |
2990 | remove_duplicates (list) | |
2991 | Lisp_Object list; | |
2992 | { | |
2993 | Lisp_Object tail = list; | |
178c5d9c | 2994 | |
82641697 GM |
2995 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2996 | { | |
2997 | Lisp_Object next = XCDR (tail); | |
2998 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2999 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
3000 | else |
3001 | tail = XCDR (tail); | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | ||
92610620 | 3006 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 3007 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
3008 | If FAMILY is omitted or nil, list all families. |
3009 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
3010 | `?' and `*'. | |
3011 | If FRAME is omitted or nil, use the selected frame. | |
3012 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
3013 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
3014 | FAMILY is the font family name. POINT-SIZE is the size of the | |
3015 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
3016 | width, weight and slant of the font. These symbols are the same as for | |
3017 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
3018 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
3019 | giving the registry and encoding of the font. | |
3020 | The result list is sorted according to the current setting of | |
7ee72033 MB |
3021 | the face font sort order. */) |
3022 | (family, frame) | |
82641697 GM |
3023 | Lisp_Object family, frame; |
3024 | { | |
3025 | struct frame *f = check_x_frame (frame); | |
3026 | struct font_name *fonts; | |
3027 | int i, nfonts; | |
3028 | Lisp_Object result; | |
3029 | struct gcpro gcpro1; | |
82641697 | 3030 | |
39506348 | 3031 | if (!NILP (family)) |
b7826503 | 3032 | CHECK_STRING (family); |
178c5d9c | 3033 | |
82641697 GM |
3034 | result = Qnil; |
3035 | GCPRO1 (result); | |
39506348 | 3036 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
3037 | for (i = nfonts - 1; i >= 0; --i) |
3038 | { | |
057df17c GM |
3039 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
3040 | char *tem; | |
82641697 | 3041 | |
82641697 GM |
3042 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
3043 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
3044 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
3045 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
3046 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
3047 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
3048 | tem = build_font_name (fonts + i); |
3049 | ASET (v, 6, build_string (tem)); | |
3050 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
3051 | fonts[i].fields[XLFD_ENCODING]); | |
3052 | ASET (v, 7, build_string (tem)); | |
3053 | xfree (tem); | |
178c5d9c | 3054 | |
82641697 | 3055 | result = Fcons (v, result); |
82641697 GM |
3056 | } |
3057 | ||
3058 | remove_duplicates (result); | |
3059 | free_font_names (fonts, nfonts); | |
3060 | UNGCPRO; | |
3061 | return result; | |
3062 | } | |
3063 | ||
3064 | ||
3065 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
3066 | 0, 1, 0, | |
7ee72033 | 3067 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
3068 | If FRAME is omitted or nil, use the selected frame. |
3069 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
3070 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
3071 | are fixed-pitch. */) |
3072 | (frame) | |
82641697 GM |
3073 | Lisp_Object frame; |
3074 | { | |
3075 | struct frame *f = check_x_frame (frame); | |
3076 | int nfonts, i; | |
3077 | struct font_name *fonts; | |
3078 | Lisp_Object result; | |
3079 | struct gcpro gcpro1; | |
aed13378 | 3080 | int count = SPECPDL_INDEX (); |
178c5d9c | 3081 | |
ee5be7c3 JD |
3082 | /* Let's consider all fonts. */ |
3083 | specbind (intern ("font-list-limit"), make_number (-1)); | |
3084 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 3085 | |
82641697 GM |
3086 | result = Qnil; |
3087 | GCPRO1 (result); | |
3088 | for (i = nfonts - 1; i >= 0; --i) | |
3089 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
3090 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
3091 | result); | |
3092 | ||
3093 | remove_duplicates (result); | |
3094 | free_font_names (fonts, nfonts); | |
3095 | UNGCPRO; | |
057df17c | 3096 | return unbind_to (count, result); |
82641697 GM |
3097 | } |
3098 | ||
3099 | ||
3100 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 3101 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
3102 | If optional arguments FACE and FRAME are specified, return only fonts |
3103 | the same size as FACE on FRAME. | |
3104 | PATTERN is a string, perhaps with wildcard characters; | |
3105 | the * character matches any substring, and | |
3106 | the ? character matches any single character. | |
3107 | PATTERN is case-insensitive. | |
3108 | FACE is a face name--a symbol. | |
3109 | ||
3110 | The return value is a list of strings, suitable as arguments to | |
3111 | set-face-font. | |
3112 | ||
3113 | Fonts Emacs can't use may or may not be excluded | |
3114 | even if they match PATTERN and FACE. | |
3115 | The optional fourth argument MAXIMUM sets a limit on how many | |
3116 | fonts to match. The first MAXIMUM fonts are reported. | |
3117 | The optional fifth argument WIDTH, if specified, is a number of columns | |
3118 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
3119 | the WIDTH times as wide as FACE on FRAME. */) |
3120 | (pattern, face, frame, maximum, width) | |
82641697 GM |
3121 | Lisp_Object pattern, face, frame, maximum, width; |
3122 | { | |
3123 | struct frame *f; | |
3124 | int size; | |
3125 | int maxnames; | |
3126 | ||
3127 | check_x (); | |
b7826503 | 3128 | CHECK_STRING (pattern); |
178c5d9c | 3129 | |
82641697 | 3130 | if (NILP (maximum)) |
ee5be7c3 | 3131 | maxnames = -1; |
82641697 GM |
3132 | else |
3133 | { | |
b7826503 | 3134 | CHECK_NATNUM (maximum); |
82641697 GM |
3135 | maxnames = XINT (maximum); |
3136 | } | |
3137 | ||
3138 | if (!NILP (width)) | |
b7826503 | 3139 | CHECK_NUMBER (width); |
82641697 GM |
3140 | |
3141 | /* We can't simply call check_x_frame because this function may be | |
3142 | called before any frame is created. */ | |
3143 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 3144 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
3145 | { |
3146 | /* Perhaps we have not yet created any frame. */ | |
3147 | f = NULL; | |
3148 | face = Qnil; | |
3149 | } | |
3150 | ||
3151 | /* Determine the width standard for comparison with the fonts we find. */ | |
3152 | ||
3153 | if (NILP (face)) | |
3154 | size = 0; | |
3155 | else | |
3156 | { | |
3157 | /* This is of limited utility since it works with character | |
3158 | widths. Keep it for compatibility. --gerd. */ | |
000fc2b1 | 3159 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
3160 | struct face *face = (face_id < 0 |
3161 | ? NULL | |
3162 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 3163 | |
c623bbd3 KS |
3164 | #ifdef WINDOWSNT |
3165 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
3166 | not maximum as on X. Redefine here. */ | |
3167 | #undef FONT_WIDTH | |
3168 | #define FONT_WIDTH FONT_MAX_WIDTH | |
3169 | #endif | |
3170 | ||
b5de343d | 3171 | if (face && face->font) |
c3cee013 | 3172 | size = FONT_WIDTH (face->font); |
82641697 | 3173 | else |
c623bbd3 | 3174 | size = FONT_WIDTH (FRAME_FONT (f)); /* FRAME_COLUMN_WIDTH (f) */ |
82641697 GM |
3175 | |
3176 | if (!NILP (width)) | |
3177 | size *= XINT (width); | |
3178 | } | |
3179 | ||
3180 | { | |
3181 | Lisp_Object args[2]; | |
3182 | ||
3183 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
3184 | if (f == NULL) | |
3185 | /* We don't have to check fontsets. */ | |
3186 | return args[0]; | |
3187 | args[1] = list_fontsets (f, pattern, size); | |
3188 | return Fnconc (2, args); | |
3189 | } | |
3190 | } | |
3191 | ||
c3cee013 | 3192 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3193 | |
3194 | ||
3195 | \f | |
3196 | /*********************************************************************** | |
3197 | Lisp Faces | |
3198 | ***********************************************************************/ | |
3199 | ||
a08332c0 GM |
3200 | /* Access face attributes of face LFACE, a Lisp vector. */ |
3201 | ||
3202 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
3203 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
3204 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
3205 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
3206 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
3207 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
3208 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
3209 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
3210 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
3211 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
3212 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
3213 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
3214 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
3215 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
3216 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
3217 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
763bc839 | 3218 | #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX) |
82641697 GM |
3219 | |
3220 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
3221 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
3222 | ||
3223 | #define LFACEP(LFACE) \ | |
3224 | (VECTORP (LFACE) \ | |
3225 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 3226 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 3227 | |
178c5d9c | 3228 | |
82641697 GM |
3229 | #if GLYPH_DEBUG |
3230 | ||
3231 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
3232 | ||
3233 | static void | |
3234 | check_lface_attrs (attrs) | |
3235 | Lisp_Object *attrs; | |
3236 | { | |
3237 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2ff10663 | 3238 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
82641697 GM |
3239 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
3240 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2ff10663 | 3241 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
82641697 | 3242 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
a08332c0 | 3243 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2ff10663 | 3244 | || IGNORE_DEFFACE_P (attrs[LFACE_AVGWIDTH_INDEX]) |
a08332c0 | 3245 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); |
82641697 | 3246 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2ff10663 | 3247 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3248 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3249 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3250 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 | 3251 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2ff10663 | 3252 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
82641697 GM |
3253 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
3254 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2ff10663 | 3255 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
82641697 GM |
3256 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
3257 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2ff10663 | 3258 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
82641697 GM |
3259 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
3260 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3261 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2ff10663 | 3262 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
82641697 GM |
3263 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
3264 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3265 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2ff10663 | 3266 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
82641697 GM |
3267 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
3268 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3269 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2ff10663 | 3270 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
82641697 GM |
3271 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
3272 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3273 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3274 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3275 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2ff10663 | 3276 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
82641697 GM |
3277 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
3278 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2ff10663 | 3279 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
82641697 GM |
3280 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
3281 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2ff10663 | 3282 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
82641697 | 3283 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
2c20458f | 3284 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2ff10663 | 3285 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
2c20458f MB |
3286 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
3287 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3288 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3289 | #ifdef HAVE_WINDOW_SYSTEM |
3290 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2ff10663 | 3291 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
82641697 | 3292 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
fef04523 | 3293 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3294 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
2ff10663 | 3295 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
3296 | || NILP (attrs[LFACE_FONT_INDEX]) |
3297 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
763bc839 KH |
3298 | xassert (UNSPECIFIEDP (attrs[LFACE_FONTSET_INDEX]) |
3299 | || STRINGP (attrs[LFACE_FONTSET_INDEX])); | |
82641697 GM |
3300 | #endif |
3301 | } | |
3302 | ||
3303 | ||
3304 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3305 | ||
3306 | static void | |
3307 | check_lface (lface) | |
3308 | Lisp_Object lface; | |
3309 | { | |
3310 | if (!NILP (lface)) | |
3311 | { | |
3312 | xassert (LFACEP (lface)); | |
3313 | check_lface_attrs (XVECTOR (lface)->contents); | |
3314 | } | |
3315 | } | |
3316 | ||
3317 | #else /* GLYPH_DEBUG == 0 */ | |
3318 | ||
3319 | #define check_lface_attrs(attrs) (void) 0 | |
3320 | #define check_lface(lface) (void) 0 | |
3321 | ||
3322 | #endif /* GLYPH_DEBUG == 0 */ | |
3323 | ||
3324 | ||
a0a23346 MB |
3325 | \f |
3326 | /* Face-merge cycle checking. */ | |
3327 | ||
3328 | /* A `named merge point' is simply a point during face-merging where we | |
3329 | look up a face by name. We keep a stack of which named lookups we're | |
3330 | currently processing so that we can easily detect cycles, using a | |
3331 | linked- list of struct named_merge_point structures, typically | |
3332 | allocated on the stack frame of the named lookup functions which are | |
3333 | active (so no consing is required). */ | |
3334 | struct named_merge_point | |
3335 | { | |
3336 | Lisp_Object face_name; | |
3337 | struct named_merge_point *prev; | |
3338 | }; | |
3339 | ||
3340 | ||
3341 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
3342 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
6e87ac8f MB |
3343 | FACE_NAME, as the head of the linked list pointed to by |
3344 | NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 MB |
3345 | |
3346 | static INLINE int | |
3347 | push_named_merge_point (struct named_merge_point *new_named_merge_point, | |
3348 | Lisp_Object face_name, | |
3349 | struct named_merge_point **named_merge_points) | |
3350 | { | |
3351 | struct named_merge_point *prev; | |
3352 | ||
3353 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
3354 | if (EQ (face_name, prev->face_name)) | |
6e87ac8f | 3355 | return 0; |
a0a23346 MB |
3356 | |
3357 | new_named_merge_point->face_name = face_name; | |
3358 | new_named_merge_point->prev = *named_merge_points; | |
3359 | ||
3360 | *named_merge_points = new_named_merge_point; | |
3361 | ||
3362 | return 1; | |
3363 | } | |
3364 | ||
3365 | \f | |
3366 | ||
3367 | ||
39506348 | 3368 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
3369 | to make it a symbol. If FACE_NAME is an alias for another face, |
3370 | return that face's name. | |
3371 | ||
3372 | Return default face in case of errors. */ | |
c7ae3284 GM |
3373 | |
3374 | static Lisp_Object | |
d1bf13b3 | 3375 | resolve_face_name (face_name, signal_p) |
c7ae3284 | 3376 | Lisp_Object face_name; |
d1bf13b3 | 3377 | int signal_p; |
c7ae3284 | 3378 | { |
d1bf13b3 KS |
3379 | Lisp_Object orig_face; |
3380 | Lisp_Object tortoise, hare; | |
178c5d9c | 3381 | |
c7ae3284 | 3382 | if (STRINGP (face_name)) |
d5db4077 | 3383 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3384 | |
d1bf13b3 KS |
3385 | if (NILP (face_name) || !SYMBOLP (face_name)) |
3386 | return face_name; | |
3387 | ||
3388 | orig_face = face_name; | |
3389 | tortoise = hare = face_name; | |
3390 | ||
3391 | while (1) | |
c7ae3284 | 3392 | { |
d1bf13b3 KS |
3393 | face_name = hare; |
3394 | hare = Fget (hare, Qface_alias); | |
3395 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 3396 | break; |
d1bf13b3 KS |
3397 | |
3398 | face_name = hare; | |
3399 | hare = Fget (hare, Qface_alias); | |
3400 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 3401 | break; |
d1bf13b3 KS |
3402 | |
3403 | tortoise = Fget (tortoise, Qface_alias); | |
3404 | if (EQ (hare, tortoise)) | |
3405 | { | |
3406 | if (signal_p) | |
3407 | Fsignal (Qcircular_list, Fcons (orig_face, Qnil)); | |
3408 | return Qdefault; | |
3409 | } | |
c7ae3284 GM |
3410 | } |
3411 | ||
3412 | return face_name; | |
3413 | } | |
3414 | ||
3415 | ||
82641697 | 3416 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3417 | return the definition for new frames. FACE_NAME may be a string or |
3418 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3419 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3420 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3421 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3422 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3423 | name. */ | |
82641697 GM |
3424 | |
3425 | static INLINE Lisp_Object | |
3426 | lface_from_face_name (f, face_name, signal_p) | |
3427 | struct frame *f; | |
3428 | Lisp_Object face_name; | |
3429 | int signal_p; | |
3430 | { | |
c7ae3284 | 3431 | Lisp_Object lface; |
82641697 | 3432 | |
d1bf13b3 | 3433 | face_name = resolve_face_name (face_name, signal_p); |
92610620 | 3434 | |
82641697 GM |
3435 | if (f) |
3436 | lface = assq_no_quit (face_name, f->face_alist); | |
3437 | else | |
3438 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3439 | ||
3440 | if (CONSP (lface)) | |
3441 | lface = XCDR (lface); | |
3442 | else if (signal_p) | |
3443 | signal_error ("Invalid face", face_name); | |
3444 | ||
3445 | check_lface (lface); | |
3446 | return lface; | |
3447 | } | |
3448 | ||
3449 | ||
3450 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3451 | frame F. Store the resulting attributes in ATTRS which must point | |
3452 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3453 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3454 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3455 | ||
3456 | static INLINE int | |
3457 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3458 | struct frame *f; | |
3459 | Lisp_Object face_name; | |
3460 | Lisp_Object *attrs; | |
3461 | int signal_p; | |
3462 | { | |
3463 | Lisp_Object lface; | |
3464 | int success_p; | |
3465 | ||
3466 | lface = lface_from_face_name (f, face_name, signal_p); | |
3467 | if (!NILP (lface)) | |
3468 | { | |
3469 | bcopy (XVECTOR (lface)->contents, attrs, | |
3470 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3471 | success_p = 1; | |
3472 | } | |
3473 | else | |
3474 | success_p = 0; | |
3475 | ||
3476 | return success_p; | |
3477 | } | |
3478 | ||
3479 | ||
3480 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3481 | specified, i.e. are non-nil. */ | |
3482 | ||
3483 | static int | |
3484 | lface_fully_specified_p (attrs) | |
3485 | Lisp_Object *attrs; | |
3486 | { | |
3487 | int i; | |
3488 | ||
3489 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3490 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
8f924df7 | 3491 | && i != LFACE_AVGWIDTH_INDEX && i != LFACE_FONTSET_INDEX) |
2ff10663 | 3492 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i])) |
6b61353c KH |
3493 | #ifdef MAC_OS |
3494 | /* MAC_TODO: No stipple support on Mac OS yet, this index is | |
3495 | always unspecified. */ | |
3496 | && i != LFACE_STIPPLE_INDEX | |
3497 | #endif | |
3498 | ) | |
6288c62f | 3499 | break; |
82641697 GM |
3500 | |
3501 | return i == LFACE_VECTOR_SIZE; | |
3502 | } | |
3503 | ||
c3cee013 | 3504 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3505 | |
39506348 KH |
3506 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3507 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3508 | unspecified attributes of LFACE. The exception is `font' | |
3509 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3510 | ||
3511 | If FONTNAME is not available on frame F, | |
3512 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3513 | If the fullname is not in a valid XLFD format, | |
3514 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3515 | in LFACE and return 1. | |
3516 | Otherwise, return 1. */ | |
178c5d9c | 3517 | |
82641697 | 3518 | static int |
39506348 | 3519 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3520 | struct frame *f; |
3521 | Lisp_Object lface; | |
39506348 | 3522 | Lisp_Object fontname; |
3221576b | 3523 | int force_p, may_fail_p; |
82641697 GM |
3524 | { |
3525 | struct font_name font; | |
3526 | char *buffer; | |
3527 | int pt; | |
39506348 KH |
3528 | int have_xlfd_p; |
3529 | int fontset; | |
d5db4077 | 3530 | char *font_name = SDATA (fontname); |
39506348 | 3531 | struct font_info *font_info; |
82641697 | 3532 | |
39506348 KH |
3533 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3534 | fontset = fs_query_fontset (fontname, 0); | |
426b2119 KH |
3535 | |
3536 | #ifdef USE_FONT_BACKEND | |
3537 | if (enable_font_backend) | |
3538 | { | |
3539 | Lisp_Object entity; | |
3540 | struct font *font = NULL; | |
3541 | ||
3542 | if (fontset > 0) | |
3543 | font = fontset_ascii_font (f, fontset); | |
3544 | else if (fontset == 0) | |
3545 | { | |
3546 | if (may_fail_p) | |
3547 | return 0; | |
3548 | abort (); | |
3549 | } | |
3550 | else | |
3551 | { | |
3552 | Lisp_Object font_object = font_open_by_name (f, SDATA (fontname)); | |
3553 | ||
3554 | if (! NILP (font_object)) | |
3555 | { | |
3556 | font = XSAVE_VALUE (font_object)->pointer; | |
3557 | fontset = new_fontset_from_font (f, font_object); | |
3558 | } | |
3559 | } | |
3560 | ||
3561 | if (! font) | |
3562 | { | |
3563 | if (may_fail_p) | |
3564 | return 0; | |
3565 | abort (); | |
3566 | } | |
3567 | ||
3568 | entity = font->entity; | |
3569 | ||
3570 | /* Set attributes only if unspecified, otherwise face defaults for | |
3571 | new frames would never take effect. If we couldn't get a font | |
3572 | name conforming to XLFD, set normal values. */ | |
3573 | ||
3574 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
3575 | { | |
3576 | Lisp_Object foundry = AREF (entity, FONT_FOUNDRY_INDEX); | |
3577 | Lisp_Object family = AREF (entity, FONT_FAMILY_INDEX); | |
3578 | Lisp_Object val; | |
3579 | ||
3580 | if (! NILP (foundry)) | |
3581 | { | |
3582 | if (! NILP (family)) | |
3583 | val = concat3 (SYMBOL_NAME (foundry), build_string ("-"), | |
3584 | SYMBOL_NAME (family)); | |
3585 | else | |
3586 | val = concat2 (SYMBOL_NAME (foundry), build_string ("-*")); | |
3587 | } | |
3588 | else | |
3589 | { | |
3590 | if (! NILP (family)) | |
3591 | val = SYMBOL_NAME (family); | |
3592 | else | |
3593 | val = build_string ("*"); | |
3594 | } | |
3595 | LFACE_FAMILY (lface) = val; | |
3596 | } | |
3597 | ||
3598 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3599 | { | |
3600 | int pt = pixel_point_size (f, font->pixel_size * 10); | |
3601 | ||
3602 | xassert (pt > 0); | |
3603 | LFACE_HEIGHT (lface) = make_number (pt); | |
3604 | } | |
3605 | ||
3606 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) | |
3607 | LFACE_AVGWIDTH (lface) = make_number (0); | |
3608 | ||
3609 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
3610 | { | |
3611 | Lisp_Object weight = font_symbolic_weight (entity); | |
3612 | Lisp_Object symbol = face_symbolic_weight (weight); | |
3613 | ||
3614 | LFACE_WEIGHT (lface) = NILP (symbol) ? weight : symbol; | |
3615 | } | |
3616 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
3617 | { | |
3618 | Lisp_Object slant = font_symbolic_slant (entity); | |
3619 | Lisp_Object symbol = face_symbolic_slant (slant); | |
3620 | ||
3621 | LFACE_SLANT (lface) = NILP (symbol) ? slant : symbol; | |
3622 | } | |
3623 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
3624 | { | |
3625 | Lisp_Object width = font_symbolic_width (entity); | |
3626 | Lisp_Object symbol = face_symbolic_swidth (width); | |
3627 | ||
3628 | LFACE_SWIDTH (lface) = NILP (symbol) ? width : symbol; | |
3629 | } | |
3630 | ||
3631 | ASET (lface, LFACE_FONT_INDEX, Ffont_xlfd_name (font->entity)); | |
3632 | ASET (lface, LFACE_FONTSET_INDEX, fontset_name (fontset)); | |
3633 | return 1; | |
3634 | } | |
3635 | #endif /* USE_FONT_BACKEND */ | |
25b1546d | 3636 | if (fontset > 0) |
d5db4077 | 3637 | font_name = SDATA (fontset_ascii (fontset)); |
25b1546d KH |
3638 | else if (fontset == 0) |
3639 | { | |
3640 | if (may_fail_p) | |
3641 | return 0; | |
3642 | abort (); | |
3643 | } | |
39506348 KH |
3644 | |
3645 | /* Check if FONT_NAME is surely available on the system. Usually | |
3646 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3647 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3648 | caching it now is not futail because we anyway load the font | |
3649 | later. */ | |
3650 | BLOCK_INPUT; | |
81b39386 | 3651 | font_info = FS_LOAD_FONT (f, font_name); |
39506348 | 3652 | UNBLOCK_INPUT; |
82641697 | 3653 | |
39506348 | 3654 | if (!font_info) |
3221576b GM |
3655 | { |
3656 | if (may_fail_p) | |
3657 | return 0; | |
39506348 | 3658 | abort (); |
3221576b | 3659 | } |
39506348 KH |
3660 | |
3661 | font.name = STRDUPA (font_info->full_name); | |
3662 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3663 | |
82641697 | 3664 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3665 | new frames would never take effect. If we couldn't get a font |
3666 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3667 | |
82641697 GM |
3668 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3669 | { | |
39506348 KH |
3670 | Lisp_Object val; |
3671 | if (have_xlfd_p) | |
3672 | { | |
3673 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3674 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3675 | + 2); | |
3676 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3677 | font.fields[XLFD_FAMILY]); | |
3678 | val = build_string (buffer); | |
3679 | } | |
3680 | else | |
3681 | val = build_string ("*"); | |
3682 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3683 | } |
3684 | ||
3685 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3686 | { | |
39506348 KH |
3687 | if (have_xlfd_p) |
3688 | pt = xlfd_point_size (f, &font); | |
3689 | else | |
3690 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3691 | xassert (pt > 0); |
3692 | LFACE_HEIGHT (lface) = make_number (pt); | |
3693 | } | |
3694 | ||
3695 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3696 | LFACE_SWIDTH (lface) |
3697 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3698 | |
a08332c0 GM |
3699 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3700 | LFACE_AVGWIDTH (lface) | |
3701 | = (have_xlfd_p | |
3702 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3703 | : Qunspecified); | |
3704 | ||
82641697 | 3705 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3706 | LFACE_WEIGHT (lface) |
3707 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3708 | |
3709 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3710 | LFACE_SLANT (lface) |
3711 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3712 | |
21228b3d | 3713 | if (fontset > 0) |
763bc839 KH |
3714 | { |
3715 | LFACE_FONT (lface) = build_string (font_info->full_name); | |
3716 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3717 | } | |
3718 | else | |
7f8005cd KH |
3719 | { |
3720 | LFACE_FONT (lface) = fontname; | |
3721 | fontset | |
3722 | = new_fontset_from_font_name (build_string (font_info->full_name)); | |
3723 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3724 | } | |
82641697 GM |
3725 | return 1; |
3726 | } | |
d12d0a9b | 3727 | |
c3cee013 | 3728 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3729 | |
3730 | ||
2c20458f MB |
3731 | /* Merges the face height FROM with the face height TO, and returns the |
3732 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3733 | returned instead. FROM and TO may be either absolute face heights or |
3734 | `relative' heights; the returned value is always an absolute height | |
3735 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3736 | will be protected from garbage-collection if this function makes a | |
3737 | call into lisp. */ | |
2c20458f MB |
3738 | |
3739 | Lisp_Object | |
e1e419ec RS |
3740 | merge_face_heights (from, to, invalid) |
3741 | Lisp_Object from, to, invalid; | |
2c20458f | 3742 | { |
cdfaafa9 | 3743 | Lisp_Object result = invalid; |
2c20458f MB |
3744 | |
3745 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3746 | /* FROM is absolute, just use it as is. */ |
3747 | result = from; | |
3748 | else if (FLOATP (from)) | |
3749 | /* FROM is a scale, use it to adjust TO. */ | |
3750 | { | |
3751 | if (INTEGERP (to)) | |
3752 | /* relative X absolute => absolute */ | |
c319cf24 | 3753 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3754 | else if (FLOATP (to)) |
3755 | /* relative X relative => relative */ | |
3756 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
3757 | else if (UNSPECIFIEDP (to)) |
3758 | result = from; | |
2c20458f | 3759 | } |
2c20458f | 3760 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3761 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3762 | { |
3763 | /* Call function with current height as argument. | |
3764 | From is the new height. */ | |
cdfaafa9 | 3765 | Lisp_Object args[2]; |
2c20458f MB |
3766 | |
3767 | args[0] = from; | |
3768 | args[1] = to; | |
cdfaafa9 | 3769 | result = safe_call (2, args); |
2c20458f | 3770 | |
cdfaafa9 MB |
3771 | /* Ensure that if TO was absolute, so is the result. */ |
3772 | if (INTEGERP (to) && !INTEGERP (result)) | |
3773 | result = invalid; | |
2c20458f MB |
3774 | } |
3775 | ||
cdfaafa9 | 3776 | return result; |
2c20458f MB |
3777 | } |
3778 | ||
3779 | ||
3780 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3781 | store the resulting attributes in TO, which must be already be |
3782 | completely specified and contain only absolute attributes. Every | |
3783 | specified attribute of FROM overrides the corresponding attribute of | |
3784 | TO; relative attributes in FROM are merged with the absolute value in | |
a0a23346 MB |
3785 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect |
3786 | loops in face inheritance; it should be 0 when called from other | |
3787 | places. */ | |
82641697 GM |
3788 | |
3789 | static INLINE void | |
a0a23346 | 3790 | merge_face_vectors (f, from, to, named_merge_points) |
2c20458f | 3791 | struct frame *f; |
82641697 | 3792 | Lisp_Object *from, *to; |
a0a23346 | 3793 | struct named_merge_point *named_merge_points; |
82641697 GM |
3794 | { |
3795 | int i; | |
2c20458f MB |
3796 | |
3797 | /* If FROM inherits from some other faces, merge their attributes into | |
3798 | TO before merging FROM's direct attributes. Note that an :inherit | |
3799 | attribute of `unspecified' is the same as one of nil; we never | |
3800 | merge :inherit attributes, so nil is more correct, but lots of | |
3801 | other code uses `unspecified' as a generic value for face attributes. */ | |
3802 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3803 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 3804 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 3805 | |
87188200 MB |
3806 | /* If TO specifies a :font attribute, and FROM specifies some |
3807 | font-related attribute, we need to clear TO's :font attribute | |
3808 | (because it will be inconsistent with whatever FROM specifies, and | |
3809 | FROM takes precedence). */ | |
3810 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3811 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3812 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3813 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3814 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3815 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3816 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3817 | to[LFACE_FONT_INDEX] = Qnil; |
3818 | ||
82641697 GM |
3819 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3820 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3821 | { |
3822 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
e1e419ec | 3823 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
ab8469eb PJ |
3824 | else |
3825 | to[i] = from[i]; | |
3826 | } | |
2c20458f MB |
3827 | |
3828 | /* TO is always an absolute face, which should inherit from nothing. | |
3829 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3830 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3831 | } | |
3832 | ||
a0a23346 MB |
3833 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
3834 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
3835 | inheritance. Returns true if FACE_NAME is a valid face name and | |
3836 | merging succeeded. */ | |
6288c62f | 3837 | |
a0a23346 MB |
3838 | static int |
3839 | merge_named_face (f, face_name, to, named_merge_points) | |
2c20458f | 3840 | struct frame *f; |
a0a23346 | 3841 | Lisp_Object face_name; |
2c20458f | 3842 | Lisp_Object *to; |
a0a23346 | 3843 | struct named_merge_point *named_merge_points; |
2c20458f | 3844 | { |
a0a23346 | 3845 | struct named_merge_point named_merge_point; |
2c20458f | 3846 | |
a0a23346 MB |
3847 | if (push_named_merge_point (&named_merge_point, |
3848 | face_name, &named_merge_points)) | |
2c20458f | 3849 | { |
e1e419ec | 3850 | struct gcpro gcpro1; |
a0a23346 MB |
3851 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
3852 | int ok = get_lface_attributes (f, face_name, from, 0); | |
2c20458f | 3853 | |
a0a23346 | 3854 | if (ok) |
e1e419ec RS |
3855 | { |
3856 | GCPRO1 (named_merge_point.face_name); | |
3857 | merge_face_vectors (f, from, to, named_merge_points); | |
3858 | UNGCPRO; | |
3859 | } | |
2c20458f | 3860 | |
a0a23346 | 3861 | return ok; |
2c20458f | 3862 | } |
a0a23346 MB |
3863 | else |
3864 | return 0; | |
82641697 GM |
3865 | } |
3866 | ||
3867 | ||
a0a23346 MB |
3868 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
3869 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
3870 | problems with FACE_REF cause an error message to be shown. Return | |
3871 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
3872 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
3873 | list structure; it may be 0 for most callers. | |
3874 | ||
3875 | FACE_REF may be a single face specification or a list of such | |
3876 | specifications. Each face specification can be: | |
82641697 GM |
3877 | |
3878 | 1. A symbol or string naming a Lisp face. | |
3879 | ||
3880 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3881 | KEYWORD is a face attribute name, and value is an appropriate value | |
3882 | for that attribute. | |
3883 | ||
3884 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3885 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3886 | for compatibility with 20.2. | |
3887 | ||
3888 | Face specifications earlier in lists take precedence over later | |
3889 | specifications. */ | |
178c5d9c | 3890 | |
a0a23346 MB |
3891 | static int |
3892 | merge_face_ref (f, face_ref, to, err_msgs, named_merge_points) | |
82641697 | 3893 | struct frame *f; |
a0a23346 | 3894 | Lisp_Object face_ref; |
82641697 | 3895 | Lisp_Object *to; |
a0a23346 MB |
3896 | int err_msgs; |
3897 | struct named_merge_point *named_merge_points; | |
82641697 | 3898 | { |
a0a23346 MB |
3899 | int ok = 1; /* Succeed without an error? */ |
3900 | ||
3901 | if (CONSP (face_ref)) | |
82641697 | 3902 | { |
a0a23346 | 3903 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 3904 | |
82641697 GM |
3905 | if (EQ (first, Qforeground_color) |
3906 | || EQ (first, Qbackground_color)) | |
3907 | { | |
3908 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3909 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 3910 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
3911 | Lisp_Object color = first; |
3912 | ||
3913 | if (STRINGP (color_name)) | |
3914 | { | |
3915 | if (EQ (color, Qforeground_color)) | |
3916 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3917 | else | |
3918 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3919 | } | |
3920 | else | |
a0a23346 MB |
3921 | { |
3922 | if (err_msgs) | |
3923 | add_to_log ("Invalid face color", color_name, Qnil); | |
3924 | ok = 0; | |
3925 | } | |
82641697 GM |
3926 | } |
3927 | else if (SYMBOLP (first) | |
d5db4077 | 3928 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3929 | { |
3930 | /* Assume this is the property list form. */ | |
a0a23346 | 3931 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 3932 | { |
a0a23346 MB |
3933 | Lisp_Object keyword = XCAR (face_ref); |
3934 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
3935 | int err = 0; | |
82641697 | 3936 | |
d9639b25 RS |
3937 | /* Specifying `unspecified' is a no-op. */ |
3938 | if (EQ (value, Qunspecified)) | |
3939 | ; | |
3940 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
3941 | { |
3942 | if (STRINGP (value)) | |
3943 | to[LFACE_FAMILY_INDEX] = value; | |
3944 | else | |
a0a23346 | 3945 | err = 1; |
82641697 GM |
3946 | } |
3947 | else if (EQ (keyword, QCheight)) | |
3948 | { | |
2c20458f | 3949 | Lisp_Object new_height = |
e1e419ec | 3950 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 3951 | |
a0a23346 | 3952 | if (! NILP (new_height)) |
2c20458f | 3953 | to[LFACE_HEIGHT_INDEX] = new_height; |
a0a23346 MB |
3954 | else |
3955 | err = 1; | |
82641697 GM |
3956 | } |
3957 | else if (EQ (keyword, QCweight)) | |
3958 | { | |
3959 | if (SYMBOLP (value) | |
3960 | && face_numeric_weight (value) >= 0) | |
3961 | to[LFACE_WEIGHT_INDEX] = value; | |
3962 | else | |
a0a23346 | 3963 | err = 1; |
82641697 GM |
3964 | } |
3965 | else if (EQ (keyword, QCslant)) | |
3966 | { | |
3967 | if (SYMBOLP (value) | |
3968 | && face_numeric_slant (value) >= 0) | |
3969 | to[LFACE_SLANT_INDEX] = value; | |
3970 | else | |
a0a23346 | 3971 | err = 1; |
82641697 GM |
3972 | } |
3973 | else if (EQ (keyword, QCunderline)) | |
3974 | { | |
3975 | if (EQ (value, Qt) | |
3976 | || NILP (value) | |
3977 | || STRINGP (value)) | |
3978 | to[LFACE_UNDERLINE_INDEX] = value; | |
3979 | else | |
a0a23346 | 3980 | err = 1; |
82641697 GM |
3981 | } |
3982 | else if (EQ (keyword, QCoverline)) | |
3983 | { | |
3984 | if (EQ (value, Qt) | |
3985 | || NILP (value) | |
3986 | || STRINGP (value)) | |
3987 | to[LFACE_OVERLINE_INDEX] = value; | |
3988 | else | |
a0a23346 | 3989 | err = 1; |
82641697 GM |
3990 | } |
3991 | else if (EQ (keyword, QCstrike_through)) | |
3992 | { | |
3993 | if (EQ (value, Qt) | |
3994 | || NILP (value) | |
3995 | || STRINGP (value)) | |
3996 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3997 | else | |
a0a23346 | 3998 | err = 1; |
82641697 GM |
3999 | } |
4000 | else if (EQ (keyword, QCbox)) | |
4001 | { | |
4002 | if (EQ (value, Qt)) | |
4003 | value = make_number (1); | |
4004 | if (INTEGERP (value) | |
4005 | || STRINGP (value) | |
4006 | || CONSP (value) | |
4007 | || NILP (value)) | |
4008 | to[LFACE_BOX_INDEX] = value; | |
4009 | else | |
a0a23346 | 4010 | err = 1; |
82641697 GM |
4011 | } |
4012 | else if (EQ (keyword, QCinverse_video) | |
4013 | || EQ (keyword, QCreverse_video)) | |
4014 | { | |
4015 | if (EQ (value, Qt) || NILP (value)) | |
4016 | to[LFACE_INVERSE_INDEX] = value; | |
4017 | else | |
a0a23346 | 4018 | err = 1; |
82641697 GM |
4019 | } |
4020 | else if (EQ (keyword, QCforeground)) | |
4021 | { | |
4022 | if (STRINGP (value)) | |
4023 | to[LFACE_FOREGROUND_INDEX] = value; | |
4024 | else | |
a0a23346 | 4025 | err = 1; |
82641697 GM |
4026 | } |
4027 | else if (EQ (keyword, QCbackground)) | |
4028 | { | |
4029 | if (STRINGP (value)) | |
4030 | to[LFACE_BACKGROUND_INDEX] = value; | |
4031 | else | |
a0a23346 | 4032 | err = 1; |
82641697 GM |
4033 | } |
4034 | else if (EQ (keyword, QCstipple)) | |
4035 | { | |
4036 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 4037 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
4038 | if (!NILP (pixmap_p)) |
4039 | to[LFACE_STIPPLE_INDEX] = value; | |
4040 | else | |
a0a23346 | 4041 | err = 1; |
82641697 GM |
4042 | #endif |
4043 | } | |
4044 | else if (EQ (keyword, QCwidth)) | |
4045 | { | |
4046 | if (SYMBOLP (value) | |
4047 | && face_numeric_swidth (value) >= 0) | |
4048 | to[LFACE_SWIDTH_INDEX] = value; | |
4049 | else | |
a0a23346 | 4050 | err = 1; |
82641697 | 4051 | } |
2c20458f MB |
4052 | else if (EQ (keyword, QCinherit)) |
4053 | { | |
a0a23346 MB |
4054 | /* This is not really very useful; it's just like a |
4055 | normal face reference. */ | |
4056 | if (! merge_face_ref (f, value, to, | |
4057 | err_msgs, named_merge_points)) | |
4058 | err = 1; | |
2c20458f | 4059 | } |
82641697 | 4060 | else |
a0a23346 | 4061 | err = 1; |
82641697 | 4062 | |
a0a23346 MB |
4063 | if (err) |
4064 | { | |
4065 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
4066 | ok = 0; | |
4067 | } | |
82641697 | 4068 | |
a0a23346 | 4069 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
4070 | } |
4071 | } | |
4072 | else | |
4073 | { | |
a0a23346 MB |
4074 | /* This is a list of face refs. Those at the beginning of the |
4075 | list take precedence over what follows, so we have to merge | |
4076 | from the end backwards. */ | |
4077 | Lisp_Object next = XCDR (face_ref); | |
4078 | ||
4079 | if (! NILP (next)) | |
4080 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
4081 | ||
4082 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
4083 | ok = 0; | |
82641697 GM |
4084 | } |
4085 | } | |
4086 | else | |
4087 | { | |
a0a23346 MB |
4088 | /* FACE_REF ought to be a face name. */ |
4089 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
4090 | if (!ok && err_msgs) | |
4091 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 4092 | } |
a0a23346 MB |
4093 | |
4094 | return ok; | |
82641697 GM |
4095 | } |
4096 | ||
4097 | ||
4098 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
4099 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 4100 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
4101 | If FACE was not known as a face before, create a new one. |
4102 | If optional argument FRAME is specified, make a frame-local face | |
4103 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
4104 | Value is a vector of face attributes. */) |
4105 | (face, frame) | |
82641697 GM |
4106 | Lisp_Object face, frame; |
4107 | { | |
4108 | Lisp_Object global_lface, lface; | |
4109 | struct frame *f; | |
4110 | int i; | |
4111 | ||
b7826503 | 4112 | CHECK_SYMBOL (face); |
82641697 | 4113 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 4114 | |
82641697 GM |
4115 | if (!NILP (frame)) |
4116 | { | |
b7826503 | 4117 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4118 | f = XFRAME (frame); |
4119 | lface = lface_from_face_name (f, face, 0); | |
4120 | } | |
4121 | else | |
4122 | f = NULL, lface = Qnil; | |
4123 | ||
4124 | /* Add a global definition if there is none. */ | |
4125 | if (NILP (global_lface)) | |
4126 | { | |
4127 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4128 | Qunspecified); | |
a08332c0 | 4129 | AREF (global_lface, 0) = Qface; |
178c5d9c | 4130 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 4131 | Vface_new_frame_defaults); |
178c5d9c | 4132 | |
82641697 GM |
4133 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
4134 | face id to Lisp face is given by the vector lface_id_to_name. | |
4135 | The mapping from Lisp face to Lisp face id is given by the | |
4136 | property `face' of the Lisp face name. */ | |
4137 | if (next_lface_id == lface_id_to_name_size) | |
4138 | { | |
4139 | int new_size = max (50, 2 * lface_id_to_name_size); | |
4140 | int sz = new_size * sizeof *lface_id_to_name; | |
4141 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
4142 | lface_id_to_name_size = new_size; | |
4143 | } | |
178c5d9c | 4144 | |
82641697 GM |
4145 | lface_id_to_name[next_lface_id] = face; |
4146 | Fput (face, Qface, make_number (next_lface_id)); | |
4147 | ++next_lface_id; | |
4148 | } | |
4149 | else if (f == NULL) | |
4150 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 4151 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 4152 | |
82641697 GM |
4153 | /* Add a frame-local definition. */ |
4154 | if (f) | |
4155 | { | |
4156 | if (NILP (lface)) | |
4157 | { | |
4158 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4159 | Qunspecified); | |
a08332c0 | 4160 | AREF (lface, 0) = Qface; |
82641697 GM |
4161 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
4162 | } | |
4163 | else | |
4164 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 4165 | AREF (lface, i) = Qunspecified; |
82641697 GM |
4166 | } |
4167 | else | |
4168 | lface = global_lface; | |
4169 | ||
33565969 RS |
4170 | /* Changing a named face means that all realized faces depending on |
4171 | that face are invalid. Since we cannot tell which realized faces | |
4172 | depend on the face, make sure they are all removed. This is done | |
4173 | by incrementing face_change_count. The next call to | |
4174 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4175 | if (NILP (Fget (face, Qface_no_inherit))) |
4176 | { | |
4177 | ++face_change_count; | |
4178 | ++windows_or_buffers_changed; | |
4179 | } | |
33565969 | 4180 | |
82641697 GM |
4181 | xassert (LFACEP (lface)); |
4182 | check_lface (lface); | |
4183 | return lface; | |
4184 | } | |
4185 | ||
4186 | ||
4187 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
4188 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 4189 | doc: /* Return non-nil if FACE names a face. |
1d256714 | 4190 | If optional second argument FRAME is non-nil, check for the |
228299fa | 4191 | existence of a frame-local face with name FACE on that frame. |
7ee72033 MB |
4192 | Otherwise check for the existence of a global face. */) |
4193 | (face, frame) | |
82641697 GM |
4194 | Lisp_Object face, frame; |
4195 | { | |
4196 | Lisp_Object lface; | |
178c5d9c | 4197 | |
82641697 GM |
4198 | if (!NILP (frame)) |
4199 | { | |
b7826503 | 4200 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4201 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
4202 | } | |
4203 | else | |
4204 | lface = lface_from_face_name (NULL, face, 0); | |
4205 | ||
4206 | return lface; | |
4207 | } | |
4208 | ||
4209 | ||
4210 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
4211 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 4212 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
4213 | If FRAME is t, copy the global face definition of FROM. |
4214 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
4215 | If NEW-FRAME is a frame, copy that data into the frame-local | |
4216 | definition of TO on NEW-FRAME. If NEW-FRAME is nil. | |
4217 | FRAME controls where the data is copied to. | |
228299fa | 4218 | |
5e9bab6f | 4219 | The value is TO. */) |
7ee72033 | 4220 | (from, to, frame, new_frame) |
82641697 GM |
4221 | Lisp_Object from, to, frame, new_frame; |
4222 | { | |
4223 | Lisp_Object lface, copy; | |
178c5d9c | 4224 | |
b7826503 PJ |
4225 | CHECK_SYMBOL (from); |
4226 | CHECK_SYMBOL (to); | |
82641697 GM |
4227 | |
4228 | if (EQ (frame, Qt)) | |
4229 | { | |
4230 | /* Copy global definition of FROM. We don't make copies of | |
4231 | strings etc. because 20.2 didn't do it either. */ | |
4232 | lface = lface_from_face_name (NULL, from, 1); | |
4233 | copy = Finternal_make_lisp_face (to, Qnil); | |
4234 | } | |
4235 | else | |
4236 | { | |
4237 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
4238 | if (NILP (new_frame)) |
4239 | new_frame = frame; | |
b7826503 PJ |
4240 | CHECK_LIVE_FRAME (frame); |
4241 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
4242 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
4243 | copy = Finternal_make_lisp_face (to, new_frame); | |
4244 | } | |
178c5d9c | 4245 | |
82641697 GM |
4246 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
4247 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 4248 | |
33565969 RS |
4249 | /* Changing a named face means that all realized faces depending on |
4250 | that face are invalid. Since we cannot tell which realized faces | |
4251 | depend on the face, make sure they are all removed. This is done | |
4252 | by incrementing face_change_count. The next call to | |
4253 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4254 | if (NILP (Fget (to, Qface_no_inherit))) |
4255 | { | |
4256 | ++face_change_count; | |
4257 | ++windows_or_buffers_changed; | |
4258 | } | |
33565969 | 4259 | |
82641697 GM |
4260 | return to; |
4261 | } | |
4262 | ||
4263 | ||
4264 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
4265 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 4266 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
4267 | FRAME being a frame means change the face on that frame. |
4268 | FRAME nil means change the face of the selected frame. | |
4269 | FRAME t means change the default for new frames. | |
4270 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
4271 | for new frames. */) |
4272 | (face, attr, value, frame) | |
82641697 GM |
4273 | Lisp_Object face, attr, value, frame; |
4274 | { | |
4275 | Lisp_Object lface; | |
4276 | Lisp_Object old_value = Qnil; | |
39506348 KH |
4277 | /* Set 1 if ATTR is QCfont. */ |
4278 | int font_attr_p = 0; | |
4279 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 4280 | int font_related_attr_p = 0; |
178c5d9c | 4281 | |
b7826503 PJ |
4282 | CHECK_SYMBOL (face); |
4283 | CHECK_SYMBOL (attr); | |
82641697 | 4284 | |
d1bf13b3 | 4285 | face = resolve_face_name (face, 1); |
c7ae3284 | 4286 | |
628436fb GM |
4287 | /* If FRAME is 0, change face on all frames, and change the |
4288 | default for new frames. */ | |
4289 | if (INTEGERP (frame) && XINT (frame) == 0) | |
4290 | { | |
4291 | Lisp_Object tail; | |
d12d0a9b | 4292 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
4293 | FOR_EACH_FRAME (tail, frame) |
4294 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 4295 | return face; |
628436fb GM |
4296 | } |
4297 | ||
82641697 GM |
4298 | /* Set lface to the Lisp attribute vector of FACE. */ |
4299 | if (EQ (frame, Qt)) | |
0268cef3 CY |
4300 | { |
4301 | lface = lface_from_face_name (NULL, face, 1); | |
67d23e01 CY |
4302 | |
4303 | /* When updating face-new-frame-defaults, we put :ignore-defface | |
4304 | where the caller wants `unspecified'. This forces the frame | |
4305 | defaults to ignore the defface value. Otherwise, the defface | |
4306 | will take effect, which is generally not what is intended. | |
4307 | The value of that attribute will be inherited from some other | |
4308 | face during face merging. See internal_merge_in_global_face. */ | |
0268cef3 | 4309 | if (UNSPECIFIEDP (value)) |
67d23e01 | 4310 | value = Qignore_defface; |
0268cef3 | 4311 | } |
82641697 GM |
4312 | else |
4313 | { | |
4314 | if (NILP (frame)) | |
c0617987 | 4315 | frame = selected_frame; |
178c5d9c | 4316 | |
b7826503 | 4317 | CHECK_LIVE_FRAME (frame); |
82641697 | 4318 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 4319 | |
82641697 GM |
4320 | /* If a frame-local face doesn't exist yet, create one. */ |
4321 | if (NILP (lface)) | |
4322 | lface = Finternal_make_lisp_face (face, frame); | |
4323 | } | |
4324 | ||
4325 | if (EQ (attr, QCfamily)) | |
4326 | { | |
2ff10663 | 4327 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4328 | { |
b7826503 | 4329 | CHECK_STRING (value); |
d5db4077 | 4330 | if (SCHARS (value) == 0) |
82641697 GM |
4331 | signal_error ("Invalid face family", value); |
4332 | } | |
4333 | old_value = LFACE_FAMILY (lface); | |
4334 | LFACE_FAMILY (lface) = value; | |
4335 | font_related_attr_p = 1; | |
4336 | } | |
4337 | else if (EQ (attr, QCheight)) | |
4338 | { | |
2ff10663 | 4339 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4340 | { |
d8055bfc | 4341 | Lisp_Object test; |
2c20458f | 4342 | |
d8055bfc GM |
4343 | test = (EQ (face, Qdefault) |
4344 | ? value | |
4345 | /* The default face must have an absolute size, | |
4346 | otherwise, we do a test merge with a random | |
4347 | height to see if VALUE's ok. */ | |
e1e419ec | 4348 | : merge_face_heights (value, make_number (10), Qnil)); |
d8055bfc GM |
4349 | |
4350 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
4351 | signal_error ("Invalid face height", value); |
4352 | } | |
2c20458f | 4353 | |
82641697 GM |
4354 | old_value = LFACE_HEIGHT (lface); |
4355 | LFACE_HEIGHT (lface) = value; | |
4356 | font_related_attr_p = 1; | |
4357 | } | |
4358 | else if (EQ (attr, QCweight)) | |
4359 | { | |
2ff10663 | 4360 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4361 | { |
b7826503 | 4362 | CHECK_SYMBOL (value); |
82641697 GM |
4363 | if (face_numeric_weight (value) < 0) |
4364 | signal_error ("Invalid face weight", value); | |
4365 | } | |
4366 | old_value = LFACE_WEIGHT (lface); | |
4367 | LFACE_WEIGHT (lface) = value; | |
4368 | font_related_attr_p = 1; | |
4369 | } | |
4370 | else if (EQ (attr, QCslant)) | |
4371 | { | |
2ff10663 | 4372 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4373 | { |
b7826503 | 4374 | CHECK_SYMBOL (value); |
82641697 GM |
4375 | if (face_numeric_slant (value) < 0) |
4376 | signal_error ("Invalid face slant", value); | |
4377 | } | |
4378 | old_value = LFACE_SLANT (lface); | |
4379 | LFACE_SLANT (lface) = value; | |
4380 | font_related_attr_p = 1; | |
4381 | } | |
4382 | else if (EQ (attr, QCunderline)) | |
4383 | { | |
2ff10663 | 4384 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4385 | if ((SYMBOLP (value) |
4386 | && !EQ (value, Qt) | |
4387 | && !EQ (value, Qnil)) | |
4388 | /* Underline color. */ | |
4389 | || (STRINGP (value) | |
d5db4077 | 4390 | && SCHARS (value) == 0)) |
82641697 | 4391 | signal_error ("Invalid face underline", value); |
178c5d9c | 4392 | |
82641697 GM |
4393 | old_value = LFACE_UNDERLINE (lface); |
4394 | LFACE_UNDERLINE (lface) = value; | |
4395 | } | |
4396 | else if (EQ (attr, QCoverline)) | |
4397 | { | |
2ff10663 | 4398 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4399 | if ((SYMBOLP (value) |
4400 | && !EQ (value, Qt) | |
4401 | && !EQ (value, Qnil)) | |
4402 | /* Overline color. */ | |
4403 | || (STRINGP (value) | |
d5db4077 | 4404 | && SCHARS (value) == 0)) |
82641697 | 4405 | signal_error ("Invalid face overline", value); |
178c5d9c | 4406 | |
82641697 GM |
4407 | old_value = LFACE_OVERLINE (lface); |
4408 | LFACE_OVERLINE (lface) = value; | |
4409 | } | |
4410 | else if (EQ (attr, QCstrike_through)) | |
4411 | { | |
2ff10663 | 4412 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4413 | if ((SYMBOLP (value) |
4414 | && !EQ (value, Qt) | |
4415 | && !EQ (value, Qnil)) | |
4416 | /* Strike-through color. */ | |
4417 | || (STRINGP (value) | |
d5db4077 | 4418 | && SCHARS (value) == 0)) |
82641697 | 4419 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 4420 | |
82641697 GM |
4421 | old_value = LFACE_STRIKE_THROUGH (lface); |
4422 | LFACE_STRIKE_THROUGH (lface) = value; | |
4423 | } | |
4424 | else if (EQ (attr, QCbox)) | |
4425 | { | |
4426 | int valid_p; | |
178c5d9c | 4427 | |
82641697 GM |
4428 | /* Allow t meaning a simple box of width 1 in foreground color |
4429 | of the face. */ | |
4430 | if (EQ (value, Qt)) | |
4431 | value = make_number (1); | |
4432 | ||
2ff10663 | 4433 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
82641697 GM |
4434 | valid_p = 1; |
4435 | else if (NILP (value)) | |
4436 | valid_p = 1; | |
4437 | else if (INTEGERP (value)) | |
89624b8b | 4438 | valid_p = XINT (value) != 0; |
82641697 | 4439 | else if (STRINGP (value)) |
d5db4077 | 4440 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4441 | else if (CONSP (value)) |
4442 | { | |
4443 | Lisp_Object tem; | |
178c5d9c | 4444 | |
82641697 GM |
4445 | tem = value; |
4446 | while (CONSP (tem)) | |
4447 | { | |
4448 | Lisp_Object k, v; | |
4449 | ||
4450 | k = XCAR (tem); | |
4451 | tem = XCDR (tem); | |
4452 | if (!CONSP (tem)) | |
4453 | break; | |
4454 | v = XCAR (tem); | |
4455 | tem = XCDR (tem); | |
178c5d9c | 4456 | |
82641697 GM |
4457 | if (EQ (k, QCline_width)) |
4458 | { | |
89624b8b | 4459 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4460 | break; |
4461 | } | |
4462 | else if (EQ (k, QCcolor)) | |
4463 | { | |
91c212f1 | 4464 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
4465 | break; |
4466 | } | |
4467 | else if (EQ (k, QCstyle)) | |
4468 | { | |
4469 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4470 | break; | |
4471 | } | |
4472 | else | |
4473 | break; | |
4474 | } | |
4475 | ||
4476 | valid_p = NILP (tem); | |
4477 | } | |
4478 | else | |
4479 | valid_p = 0; | |
4480 | ||
4481 | if (!valid_p) | |
4482 | signal_error ("Invalid face box", value); | |
178c5d9c | 4483 | |
82641697 GM |
4484 | old_value = LFACE_BOX (lface); |
4485 | LFACE_BOX (lface) = value; | |
4486 | } | |
4487 | else if (EQ (attr, QCinverse_video) | |
4488 | || EQ (attr, QCreverse_video)) | |
4489 | { | |
2ff10663 | 4490 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4491 | { |
b7826503 | 4492 | CHECK_SYMBOL (value); |
82641697 GM |
4493 | if (!EQ (value, Qt) && !NILP (value)) |
4494 | signal_error ("Invalid inverse-video face attribute value", value); | |
4495 | } | |
4496 | old_value = LFACE_INVERSE (lface); | |
4497 | LFACE_INVERSE (lface) = value; | |
4498 | } | |
4499 | else if (EQ (attr, QCforeground)) | |
4500 | { | |
2ff10663 | 4501 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4502 | { |
4503 | /* Don't check for valid color names here because it depends | |
4504 | on the frame (display) whether the color will be valid | |
4505 | when the face is realized. */ | |
b7826503 | 4506 | CHECK_STRING (value); |
d5db4077 | 4507 | if (SCHARS (value) == 0) |
82641697 GM |
4508 | signal_error ("Empty foreground color value", value); |
4509 | } | |
4510 | old_value = LFACE_FOREGROUND (lface); | |
4511 | LFACE_FOREGROUND (lface) = value; | |
4512 | } | |
4513 | else if (EQ (attr, QCbackground)) | |
4514 | { | |
2ff10663 | 4515 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4516 | { |
4517 | /* Don't check for valid color names here because it depends | |
4518 | on the frame (display) whether the color will be valid | |
4519 | when the face is realized. */ | |
b7826503 | 4520 | CHECK_STRING (value); |
d5db4077 | 4521 | if (SCHARS (value) == 0) |
82641697 GM |
4522 | signal_error ("Empty background color value", value); |
4523 | } | |
4524 | old_value = LFACE_BACKGROUND (lface); | |
4525 | LFACE_BACKGROUND (lface) = value; | |
4526 | } | |
4527 | else if (EQ (attr, QCstipple)) | |
4528 | { | |
4529 | #ifdef HAVE_X_WINDOWS | |
2ff10663 | 4530 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4531 | && !NILP (value) |
fef04523 | 4532 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4533 | signal_error ("Invalid stipple attribute", value); |
4534 | old_value = LFACE_STIPPLE (lface); | |
4535 | LFACE_STIPPLE (lface) = value; | |
4536 | #endif /* HAVE_X_WINDOWS */ | |
4537 | } | |
4538 | else if (EQ (attr, QCwidth)) | |
4539 | { | |
2ff10663 | 4540 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4541 | { |
b7826503 | 4542 | CHECK_SYMBOL (value); |
82641697 GM |
4543 | if (face_numeric_swidth (value) < 0) |
4544 | signal_error ("Invalid face width", value); | |
4545 | } | |
4546 | old_value = LFACE_SWIDTH (lface); | |
4547 | LFACE_SWIDTH (lface) = value; | |
4548 | font_related_attr_p = 1; | |
4549 | } | |
763bc839 | 4550 | else if (EQ (attr, QCfont) || EQ (attr, QCfontset)) |
82641697 | 4551 | { |
c3cee013 | 4552 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4553 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4554 | { |
4555 | /* Set font-related attributes of the Lisp face from an XLFD | |
4556 | font name. */ | |
4557 | struct frame *f; | |
4558 | Lisp_Object tmp; | |
82641697 | 4559 | |
96fbd2c6 EZ |
4560 | if (EQ (frame, Qt)) |
4561 | f = SELECTED_FRAME (); | |
4562 | else | |
4563 | f = check_x_frame (frame); | |
178c5d9c | 4564 | |
2ff10663 | 4565 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
e67f5ccc RS |
4566 | { |
4567 | CHECK_STRING (value); | |
39506348 | 4568 | |
e67f5ccc RS |
4569 | /* VALUE may be a fontset name or an alias of fontset. In |
4570 | such a case, use the base fontset name. */ | |
4571 | tmp = Fquery_fontset (value, Qnil); | |
4572 | if (!NILP (tmp)) | |
4573 | value = tmp; | |
8f924df7 KH |
4574 | else if (EQ (attr, QCfontset)) |
4575 | signal_error ("Invalid fontset name", value); | |
e67f5ccc | 4576 | |
8f924df7 KH |
4577 | if (EQ (attr, QCfont)) |
4578 | { | |
4579 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
4580 | signal_error ("Invalid font or fontset name", value); | |
4581 | } | |
4582 | else | |
4583 | LFACE_FONTSET (lface) = value; | |
e67f5ccc | 4584 | } |
39506348 | 4585 | |
96fbd2c6 EZ |
4586 | font_attr_p = 1; |
4587 | } | |
c3cee013 | 4588 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4589 | } |
2c20458f MB |
4590 | else if (EQ (attr, QCinherit)) |
4591 | { | |
4592 | Lisp_Object tail; | |
4593 | if (SYMBOLP (value)) | |
4594 | tail = Qnil; | |
4595 | else | |
4596 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4597 | if (!SYMBOLP (XCAR (tail))) | |
4598 | break; | |
4599 | if (NILP (tail)) | |
4600 | LFACE_INHERIT (lface) = value; | |
4601 | else | |
6288c62f | 4602 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4603 | } |
82641697 GM |
4604 | else if (EQ (attr, QCbold)) |
4605 | { | |
4606 | old_value = LFACE_WEIGHT (lface); | |
4607 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4608 | font_related_attr_p = 1; | |
4609 | } | |
4610 | else if (EQ (attr, QCitalic)) | |
4611 | { | |
4612 | old_value = LFACE_SLANT (lface); | |
4613 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4614 | font_related_attr_p = 1; | |
4615 | } | |
4616 | else | |
4617 | signal_error ("Invalid face attribute name", attr); | |
4618 | ||
39506348 | 4619 | if (font_related_attr_p |
2ff10663 | 4620 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
39506348 KH |
4621 | /* If a font-related attribute other than QCfont is specified, the |
4622 | original `font' attribute nor that of default face is useless | |
4623 | to determine a new font. Thus, we set it to nil so that font | |
4624 | selection mechanism doesn't use it. */ | |
4625 | LFACE_FONT (lface) = Qnil; | |
4626 | ||
82641697 GM |
4627 | /* Changing a named face means that all realized faces depending on |
4628 | that face are invalid. Since we cannot tell which realized faces | |
4629 | depend on the face, make sure they are all removed. This is done | |
4630 | by incrementing face_change_count. The next call to | |
4631 | init_iterator will then free realized faces. */ | |
4632 | if (!EQ (frame, Qt) | |
46b00436 | 4633 | && NILP (Fget (face, Qface_no_inherit)) |
82641697 | 4634 | && (EQ (attr, QCfont) |
763bc839 | 4635 | || EQ (attr, QCfontset) |
82641697 GM |
4636 | || NILP (Fequal (old_value, value)))) |
4637 | { | |
4638 | ++face_change_count; | |
4639 | ++windows_or_buffers_changed; | |
4640 | } | |
4641 | ||
2ff10663 | 4642 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4643 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4644 | { |
4645 | Lisp_Object param; | |
4646 | ||
4647 | param = Qnil; | |
178c5d9c | 4648 | |
8bd201d6 GM |
4649 | if (EQ (face, Qdefault)) |
4650 | { | |
b9c769f8 | 4651 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4652 | /* Changed font-related attributes of the `default' face are |
4653 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4654 | if (FRAMEP (frame) |
4655 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4656 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4657 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4658 | else |
4659 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4660 | ||
4661 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4662 | param = Qforeground_color; |
4663 | else if (EQ (attr, QCbackground)) | |
4664 | param = Qbackground_color; | |
4665 | } | |
b9c769f8 | 4666 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4667 | #ifndef WINDOWSNT |
8bd201d6 GM |
4668 | else if (EQ (face, Qscroll_bar)) |
4669 | { | |
4670 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4671 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4672 | if (EQ (attr, QCforeground)) | |
4673 | param = Qscroll_bar_foreground; | |
4674 | else if (EQ (attr, QCbackground)) | |
4675 | param = Qscroll_bar_background; | |
4676 | } | |
d12d0a9b | 4677 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4678 | else if (EQ (face, Qborder)) |
4679 | { | |
4680 | /* Changing background color of `border' sets frame parameter | |
4681 | `border-color'. */ | |
4682 | if (EQ (attr, QCbackground)) | |
4683 | param = Qborder_color; | |
4684 | } | |
4685 | else if (EQ (face, Qcursor)) | |
4686 | { | |
4687 | /* Changing background color of `cursor' sets frame parameter | |
4688 | `cursor-color'. */ | |
4689 | if (EQ (attr, QCbackground)) | |
4690 | param = Qcursor_color; | |
4691 | } | |
4692 | else if (EQ (face, Qmouse)) | |
4693 | { | |
4694 | /* Changing background color of `mouse' sets frame parameter | |
4695 | `mouse-color'. */ | |
4696 | if (EQ (attr, QCbackground)) | |
4697 | param = Qmouse_color; | |
4698 | } | |
b9c769f8 | 4699 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4700 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4701 | { |
4702 | /* Indicate that we have to update the menu bar when | |
4703 | realizing faces on FRAME. FRAME t change the | |
4704 | default for new frames. We do this by setting | |
4705 | setting the flag in new face caches */ | |
4706 | if (FRAMEP (frame)) | |
4707 | { | |
4708 | struct frame *f = XFRAME (frame); | |
4709 | if (FRAME_FACE_CACHE (f) == NULL) | |
4710 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4711 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4712 | } | |
4713 | else | |
4714 | menu_face_changed_default = 1; | |
4715 | } | |
8bd201d6 | 4716 | |
39506348 | 4717 | if (!NILP (param)) |
ab8469eb PJ |
4718 | { |
4719 | if (EQ (frame, Qt)) | |
4720 | /* Update `default-frame-alist', which is used for new frames. */ | |
4721 | { | |
4722 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4723 | } | |
4724 | else | |
4725 | /* Update the current frame's parameters. */ | |
4726 | { | |
4727 | Lisp_Object cons; | |
4728 | cons = XCAR (Vparam_value_alist); | |
4729 | XSETCAR (cons, param); | |
4730 | XSETCDR (cons, value); | |
4731 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4732 | } | |
4733 | } | |
8bd201d6 | 4734 | } |
82641697 | 4735 | |
82641697 GM |
4736 | return face; |
4737 | } | |
4738 | ||
4739 | ||
c3cee013 | 4740 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4741 | |
39506348 | 4742 | /* Set the `font' frame parameter of FRAME determined from `default' |
763bc839 | 4743 | face attributes LFACE. If a font name is explicitely |
39506348 KH |
4744 | specfied in LFACE, use it as is. Otherwise, determine a font name |
4745 | from the other font-related atrributes of LFACE. In that case, if | |
4746 | there's no matching font, signals an error. */ | |
82641697 GM |
4747 | |
4748 | static void | |
4749 | set_font_frame_param (frame, lface) | |
4750 | Lisp_Object frame, lface; | |
4751 | { | |
4752 | struct frame *f = XFRAME (frame); | |
82641697 | 4753 | |
482cca61 | 4754 | if (FRAME_WINDOW_P (f)) |
82641697 | 4755 | { |
482cca61 GM |
4756 | Lisp_Object font_name; |
4757 | char *font; | |
177c0ea7 | 4758 | |
482cca61 GM |
4759 | if (STRINGP (LFACE_FONT (lface))) |
4760 | font_name = LFACE_FONT (lface); | |
426b2119 KH |
4761 | #ifdef USE_FONT_BACKEND |
4762 | else if (enable_font_backend) | |
4763 | { | |
4764 | Lisp_Object entity = font_find_for_lface (f, &AREF (lface, 0), Qnil); | |
4765 | ||
4766 | if (NILP (entity)) | |
4767 | error ("No font matches the specified attribute"); | |
4768 | font_name = font_open_for_lface (f, &AREF (lface, 0), entity); | |
4769 | if (NILP (font_name)) | |
4770 | error ("No font matches the specified attribute"); | |
4771 | } | |
4772 | #endif | |
482cca61 GM |
4773 | else |
4774 | { | |
4775 | /* Choose a font name that reflects LFACE's attributes and has | |
4776 | the registry and encoding pattern specified in the default | |
4777 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
8f924df7 | 4778 | font = choose_face_font (f, XVECTOR (lface)->contents, Qnil, NULL); |
482cca61 GM |
4779 | if (!font) |
4780 | error ("No font matches the specified attribute"); | |
4781 | font_name = build_string (font); | |
4782 | xfree (font); | |
4783 | } | |
177c0ea7 | 4784 | |
a5f696ac | 4785 | f->default_face_done_p = 0; |
482cca61 GM |
4786 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4787 | } | |
82641697 GM |
4788 | } |
4789 | ||
4790 | ||
8bd201d6 GM |
4791 | /* Update the corresponding face when frame parameter PARAM on frame F |
4792 | has been assigned the value NEW_VALUE. */ | |
4793 | ||
4794 | void | |
4795 | update_face_from_frame_parameter (f, param, new_value) | |
4796 | struct frame *f; | |
4797 | Lisp_Object param, new_value; | |
4798 | { | |
46b00436 | 4799 | Lisp_Object face = Qnil; |
8bd201d6 GM |
4800 | Lisp_Object lface; |
4801 | ||
4802 | /* If there are no faces yet, give up. This is the case when called | |
4803 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4804 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4805 | if (NILP (f->face_alist)) |
4806 | return; | |
178c5d9c | 4807 | |
8bd201d6 GM |
4808 | if (EQ (param, Qforeground_color)) |
4809 | { | |
46b00436 KS |
4810 | face = Qdefault; |
4811 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4812 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
4813 | ? new_value : Qunspecified); | |
4814 | realize_basic_faces (f); | |
4815 | } | |
4816 | else if (EQ (param, Qbackground_color)) | |
4817 | { | |
92610620 GM |
4818 | Lisp_Object frame; |
4819 | ||
4820 | /* Changing the background color might change the background | |
c20577bc JL |
4821 | mode, so that we have to load new defface specs. |
4822 | Call frame-set-background-mode to do that. */ | |
92610620 | 4823 | XSETFRAME (frame, f); |
c20577bc | 4824 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 4825 | |
46b00436 KS |
4826 | face = Qdefault; |
4827 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4828 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4829 | ? new_value : Qunspecified); | |
4830 | realize_basic_faces (f); | |
4831 | } | |
46b00436 | 4832 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 4833 | { |
46b00436 KS |
4834 | face = Qborder; |
4835 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4836 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4837 | ? new_value : Qunspecified); | |
4838 | } | |
4839 | else if (EQ (param, Qcursor_color)) | |
4840 | { | |
46b00436 KS |
4841 | face = Qcursor; |
4842 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4843 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4844 | ? new_value : Qunspecified); | |
4845 | } | |
4846 | else if (EQ (param, Qmouse_color)) | |
4847 | { | |
46b00436 KS |
4848 | face = Qmouse; |
4849 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4850 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4851 | ? new_value : Qunspecified); | |
4852 | } | |
46b00436 KS |
4853 | |
4854 | /* Changing a named face means that all realized faces depending on | |
4855 | that face are invalid. Since we cannot tell which realized faces | |
4856 | depend on the face, make sure they are all removed. This is done | |
4857 | by incrementing face_change_count. The next call to | |
4858 | init_iterator will then free realized faces. */ | |
4859 | if (!NILP (face) | |
4860 | && NILP (Fget (face, Qface_no_inherit))) | |
4861 | { | |
4862 | ++face_change_count; | |
4863 | ++windows_or_buffers_changed; | |
4864 | } | |
8bd201d6 GM |
4865 | } |
4866 | ||
4867 | ||
82641697 GM |
4868 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4869 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4870 | doesn't take a frame argument. */ | |
4871 | ||
4872 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4873 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4874 | (resource, class, frame) | |
82641697 GM |
4875 | Lisp_Object resource, class, frame; |
4876 | { | |
c3cee013 | 4877 | Lisp_Object value = Qnil; |
b7826503 PJ |
4878 | CHECK_STRING (resource); |
4879 | CHECK_STRING (class); | |
4880 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4881 | BLOCK_INPUT; |
4882 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4883 | resource, class, Qnil, Qnil); | |
4884 | UNBLOCK_INPUT; | |
4885 | return value; | |
4886 | } | |
4887 | ||
4888 | ||
4889 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4890 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4891 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4892 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4893 | |
82641697 GM |
4894 | static Lisp_Object |
4895 | face_boolean_x_resource_value (value, signal_p) | |
4896 | Lisp_Object value; | |
4897 | int signal_p; | |
4898 | { | |
4899 | Lisp_Object result = make_number (0); | |
4900 | ||
4901 | xassert (STRINGP (value)); | |
178c5d9c | 4902 | |
d5db4077 KR |
4903 | if (xstricmp (SDATA (value), "on") == 0 |
4904 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4905 | result = Qt; |
d5db4077 KR |
4906 | else if (xstricmp (SDATA (value), "off") == 0 |
4907 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4908 | result = Qnil; |
d5db4077 | 4909 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4910 | result = Qunspecified; |
4911 | else if (signal_p) | |
4912 | signal_error ("Invalid face attribute value from X resource", value); | |
4913 | ||
4914 | return result; | |
4915 | } | |
4916 | ||
4917 | ||
4918 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4919 | Finternal_set_lisp_face_attribute_from_resource, | |
4920 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4921 | 3, 4, 0, doc: /* */) |
4922 | (face, attr, value, frame) | |
82641697 GM |
4923 | Lisp_Object face, attr, value, frame; |
4924 | { | |
b7826503 PJ |
4925 | CHECK_SYMBOL (face); |
4926 | CHECK_SYMBOL (attr); | |
4927 | CHECK_STRING (value); | |
82641697 | 4928 | |
d5db4077 | 4929 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4930 | value = Qunspecified; |
4931 | else if (EQ (attr, QCheight)) | |
4932 | { | |
4933 | value = Fstring_to_number (value, make_number (10)); | |
4934 | if (XINT (value) <= 0) | |
4935 | signal_error ("Invalid face height from X resource", value); | |
4936 | } | |
4937 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4938 | value = face_boolean_x_resource_value (value, 1); | |
4939 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4940 | value = intern (SDATA (value)); |
82641697 GM |
4941 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4942 | value = face_boolean_x_resource_value (value, 1); | |
4943 | else if (EQ (attr, QCunderline) | |
4944 | || EQ (attr, QCoverline) | |
27188d11 | 4945 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4946 | { |
4947 | Lisp_Object boolean_value; | |
4948 | ||
4949 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4950 | VALUE does NOT specify a color. */ | |
4951 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4952 | if (SYMBOLP (boolean_value)) | |
4953 | value = boolean_value; | |
4954 | } | |
0ad040ff | 4955 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
27188d11 | 4956 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
82641697 GM |
4957 | |
4958 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4959 | } | |
4960 | ||
c3cee013 | 4961 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4962 | |
c7ae3284 GM |
4963 | \f |
4964 | /*********************************************************************** | |
4965 | Menu face | |
4966 | ***********************************************************************/ | |
4967 | ||
bce72079 | 4968 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4969 | |
bce72079 GM |
4970 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4971 | ||
4972 | static void | |
4973 | x_update_menu_appearance (f) | |
c7ae3284 | 4974 | struct frame *f; |
c7ae3284 | 4975 | { |
a03ad468 | 4976 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4977 | XrmDatabase rdb; |
178c5d9c | 4978 | |
bce72079 GM |
4979 | if (dpyinfo |
4980 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4981 | rdb != NULL)) | |
c7ae3284 | 4982 | { |
bce72079 GM |
4983 | char line[512]; |
4984 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4985 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 4986 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 4987 | int changed_p = 0; |
8ad582ac GM |
4988 | #ifdef USE_MOTIF |
4989 | const char *popup_path = "popup_menu"; | |
4990 | #else | |
4991 | const char *popup_path = "menu.popup"; | |
4992 | #endif | |
177c0ea7 | 4993 | |
bce72079 GM |
4994 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4995 | { | |
8ad582ac GM |
4996 | sprintf (line, "%s.%s*foreground: %s", |
4997 | myname, popup_path, | |
d5db4077 | 4998 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4999 | XrmPutLineResource (&rdb, line); |
5000 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 5001 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
5002 | XrmPutLineResource (&rdb, line); |
5003 | changed_p = 1; | |
5004 | } | |
178c5d9c | 5005 | |
bce72079 GM |
5006 | if (STRINGP (LFACE_BACKGROUND (lface))) |
5007 | { | |
8ad582ac GM |
5008 | sprintf (line, "%s.%s*background: %s", |
5009 | myname, popup_path, | |
d5db4077 | 5010 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5011 | XrmPutLineResource (&rdb, line); |
5012 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 5013 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5014 | XrmPutLineResource (&rdb, line); |
5015 | changed_p = 1; | |
5016 | } | |
177c0ea7 | 5017 | |
bce72079 GM |
5018 | if (face->font_name |
5019 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
5020 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
5021 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
5022 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5023 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
5024 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
5025 | { | |
a03ad468 | 5026 | #ifdef USE_MOTIF |
bce72079 | 5027 | const char *suffix = "List"; |
211f2210 | 5028 | Bool motif = True; |
a2d7e722 JD |
5029 | #else |
5030 | #if defined HAVE_X_I18N | |
5031 | ||
5032 | const char *suffix = "Set"; | |
a03ad468 | 5033 | #else |
bce72079 | 5034 | const char *suffix = ""; |
a2d7e722 | 5035 | #endif |
211f2210 | 5036 | Bool motif = False; |
2defe37f | 5037 | #endif |
211f2210 | 5038 | #if defined HAVE_X_I18N |
2defe37f SM |
5039 | extern char *xic_create_fontsetname |
5040 | P_ ((char *base_fontname, Bool motif)); | |
211f2210 | 5041 | char *fontsetname = xic_create_fontsetname (face->font_name, motif); |
2defe37f SM |
5042 | #else |
5043 | char *fontsetname = face->font_name; | |
bce72079 GM |
5044 | #endif |
5045 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
2defe37f | 5046 | myname, suffix, fontsetname); |
bce72079 | 5047 | XrmPutLineResource (&rdb, line); |
2eddf899 | 5048 | sprintf (line, "%s.%s*font%s: %s", |
2defe37f | 5049 | myname, popup_path, suffix, fontsetname); |
bce72079 GM |
5050 | XrmPutLineResource (&rdb, line); |
5051 | changed_p = 1; | |
211f2210 SM |
5052 | if (fontsetname != face->font_name) |
5053 | xfree (fontsetname); | |
bce72079 | 5054 | } |
c7ae3284 | 5055 | |
bce72079 | 5056 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 5057 | free_frame_menubar (f); |
c7ae3284 GM |
5058 | } |
5059 | } | |
5060 | ||
bce72079 | 5061 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
5062 | |
5063 | ||
177c0ea7 | 5064 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
5065 | Sface_attribute_relative_p, |
5066 | 2, 2, 0, | |
5067 | doc: /* Return non-nil if face ATTRIBUTE VALUE is relative. */) | |
5068 | (attribute, value) | |
d0930289 | 5069 | Lisp_Object attribute, value; |
cdfaafa9 | 5070 | { |
05338727 | 5071 | if (EQ (value, Qunspecified) || (EQ (value, Qignore_defface))) |
cdfaafa9 MB |
5072 | return Qt; |
5073 | else if (EQ (attribute, QCheight)) | |
5074 | return INTEGERP (value) ? Qnil : Qt; | |
5075 | else | |
5076 | return Qnil; | |
5077 | } | |
5078 | ||
5079 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
5080 | 3, 3, 0, | |
5081 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
5082 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
5083 | the result will be absolute, otherwise it will be relative. */) | |
5084 | (attribute, value1, value2) | |
5085 | Lisp_Object attribute, value1, value2; | |
5086 | { | |
05338727 | 5087 | if (EQ (value1, Qunspecified) || EQ (value1, Qignore_defface)) |
cdfaafa9 MB |
5088 | return value2; |
5089 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 5090 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
5091 | else |
5092 | return value1; | |
5093 | } | |
5094 | ||
82641697 GM |
5095 | |
5096 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
5097 | Sinternal_get_lisp_face_attribute, | |
5098 | 2, 3, 0, | |
7ee72033 | 5099 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
5100 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
5101 | face attribute name, signal an error. | |
7fc92635 JB |
5102 | If the optional argument FRAME is given, report on face SYMBOL in that |
5103 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 MB |
5104 | frames). If FRAME is omitted or nil, use the selected frame. */) |
5105 | (symbol, keyword, frame) | |
82641697 GM |
5106 | Lisp_Object symbol, keyword, frame; |
5107 | { | |
5108 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 5109 | |
b7826503 PJ |
5110 | CHECK_SYMBOL (symbol); |
5111 | CHECK_SYMBOL (keyword); | |
82641697 GM |
5112 | |
5113 | if (EQ (frame, Qt)) | |
5114 | lface = lface_from_face_name (NULL, symbol, 1); | |
5115 | else | |
5116 | { | |
5117 | if (NILP (frame)) | |
c0617987 | 5118 | frame = selected_frame; |
b7826503 | 5119 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5120 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
5121 | } | |
5122 | ||
5123 | if (EQ (keyword, QCfamily)) | |
5124 | value = LFACE_FAMILY (lface); | |
5125 | else if (EQ (keyword, QCheight)) | |
5126 | value = LFACE_HEIGHT (lface); | |
5127 | else if (EQ (keyword, QCweight)) | |
5128 | value = LFACE_WEIGHT (lface); | |
5129 | else if (EQ (keyword, QCslant)) | |
5130 | value = LFACE_SLANT (lface); | |
5131 | else if (EQ (keyword, QCunderline)) | |
5132 | value = LFACE_UNDERLINE (lface); | |
5133 | else if (EQ (keyword, QCoverline)) | |
5134 | value = LFACE_OVERLINE (lface); | |
5135 | else if (EQ (keyword, QCstrike_through)) | |
5136 | value = LFACE_STRIKE_THROUGH (lface); | |
5137 | else if (EQ (keyword, QCbox)) | |
5138 | value = LFACE_BOX (lface); | |
5139 | else if (EQ (keyword, QCinverse_video) | |
5140 | || EQ (keyword, QCreverse_video)) | |
5141 | value = LFACE_INVERSE (lface); | |
5142 | else if (EQ (keyword, QCforeground)) | |
5143 | value = LFACE_FOREGROUND (lface); | |
5144 | else if (EQ (keyword, QCbackground)) | |
5145 | value = LFACE_BACKGROUND (lface); | |
5146 | else if (EQ (keyword, QCstipple)) | |
5147 | value = LFACE_STIPPLE (lface); | |
5148 | else if (EQ (keyword, QCwidth)) | |
5149 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
5150 | else if (EQ (keyword, QCinherit)) |
5151 | value = LFACE_INHERIT (lface); | |
39506348 KH |
5152 | else if (EQ (keyword, QCfont)) |
5153 | value = LFACE_FONT (lface); | |
763bc839 KH |
5154 | else if (EQ (keyword, QCfontset)) |
5155 | value = LFACE_FONTSET (lface); | |
82641697 GM |
5156 | else |
5157 | signal_error ("Invalid face attribute name", keyword); | |
5158 | ||
0268cef3 CY |
5159 | if (IGNORE_DEFFACE_P (value)) |
5160 | return Qunspecified; | |
5161 | ||
82641697 GM |
5162 | return value; |
5163 | } | |
5164 | ||
5165 | ||
5166 | DEFUN ("internal-lisp-face-attribute-values", | |
5167 | Finternal_lisp_face_attribute_values, | |
5168 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
5169 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
5170 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
5171 | (attr) | |
82641697 GM |
5172 | Lisp_Object attr; |
5173 | { | |
5174 | Lisp_Object result = Qnil; | |
178c5d9c | 5175 | |
b7826503 | 5176 | CHECK_SYMBOL (attr); |
178c5d9c | 5177 | |
82641697 GM |
5178 | if (EQ (attr, QCweight) |
5179 | || EQ (attr, QCslant) | |
5180 | || EQ (attr, QCwidth)) | |
5181 | { | |
5182 | /* Extract permissible symbols from tables. */ | |
5183 | struct table_entry *table; | |
5184 | int i, dim; | |
178c5d9c | 5185 | |
82641697 GM |
5186 | if (EQ (attr, QCweight)) |
5187 | table = weight_table, dim = DIM (weight_table); | |
5188 | else if (EQ (attr, QCslant)) | |
5189 | table = slant_table, dim = DIM (slant_table); | |
5190 | else | |
5191 | table = swidth_table, dim = DIM (swidth_table); | |
5192 | ||
5193 | for (i = 0; i < dim; ++i) | |
5194 | { | |
5195 | Lisp_Object symbol = *table[i].symbol; | |
5196 | Lisp_Object tail = result; | |
5197 | ||
5198 | while (!NILP (tail) | |
5199 | && !EQ (XCAR (tail), symbol)) | |
5200 | tail = XCDR (tail); | |
5201 | ||
5202 | if (NILP (tail)) | |
5203 | result = Fcons (symbol, result); | |
5204 | } | |
5205 | } | |
5206 | else if (EQ (attr, QCunderline)) | |
5207 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5208 | else if (EQ (attr, QCoverline)) | |
5209 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5210 | else if (EQ (attr, QCstrike_through)) | |
5211 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5212 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
5213 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5214 | ||
5215 | return result; | |
5216 | } | |
178c5d9c | 5217 | |
82641697 GM |
5218 | |
5219 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 5220 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 5221 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
5222 | Default face attributes override any local face attributes. */) |
5223 | (face, frame) | |
82641697 GM |
5224 | Lisp_Object face, frame; |
5225 | { | |
aad40737 MB |
5226 | int i; |
5227 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
5228 | ||
b7826503 | 5229 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5230 | global_lface = lface_from_face_name (NULL, face, 1); |
5231 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
5232 | if (NILP (local_lface)) | |
5233 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 5234 | |
cec33c90 SM |
5235 | /* Make every specified global attribute override the local one. |
5236 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
5237 | the local frame is defined from default specs in `face-defface-spec' | |
5238 | and those should be overridden by global settings. Hence the strange | |
5239 | "global before local" priority. */ | |
aad40737 MB |
5240 | lvec = XVECTOR (local_lface)->contents; |
5241 | gvec = XVECTOR (global_lface)->contents; | |
5242 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
5243 | if (! UNSPECIFIEDP (gvec[i])) | |
27d744ae YM |
5244 | { |
5245 | if (IGNORE_DEFFACE_P (gvec[i])) | |
5246 | lvec[i] = Qunspecified; | |
5247 | else | |
5248 | lvec[i] = gvec[i]; | |
5249 | } | |
334a2e2a GM |
5250 | |
5251 | return Qnil; | |
82641697 GM |
5252 | } |
5253 | ||
5254 | ||
5255 | /* The following function is implemented for compatibility with 20.2. | |
5256 | The function is used in x-resolve-fonts when it is asked to | |
5257 | return fonts with the same size as the font of a face. This is | |
5258 | done in fontset.el. */ | |
5259 | ||
2db4bfe5 | 5260 | DEFUN ("face-font", Fface_font, Sface_font, 1, 3, 0, |
e3cd9e7f | 5261 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
2db4bfe5 | 5262 | The font name is, by default, for ASCII characters. |
228299fa GM |
5263 | If the optional argument FRAME is given, report on face FACE in that frame. |
5264 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
5265 | The font default for a face is either nil, or a list | |
5266 | of the form (bold), (italic) or (bold italic). | |
2db4bfe5 KH |
5267 | If FRAME is omitted or nil, use the selected frame. And, in this case, |
5268 | if the optional third argument CHARACTER is given, | |
5269 | return the font name used for CHARACTER. */) | |
5270 | (face, frame, character) | |
5271 | Lisp_Object face, frame, character; | |
82641697 GM |
5272 | { |
5273 | if (EQ (frame, Qt)) | |
5274 | { | |
5275 | Lisp_Object result = Qnil; | |
5276 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
5277 | ||
5278 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5279 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
5280 | result = Fcons (Qbold, result); | |
178c5d9c | 5281 | |
0f2c6573 | 5282 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
5283 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
5284 | result = Fcons (Qitalic, result); | |
178c5d9c | 5285 | |
82641697 GM |
5286 | return result; |
5287 | } | |
5288 | else | |
5289 | { | |
5290 | struct frame *f = frame_or_selected_frame (frame, 1); | |
000fc2b1 | 5291 | int face_id = lookup_named_face (f, face, 1); |
82641697 | 5292 | struct face *face = FACE_FROM_ID (f, face_id); |
2db4bfe5 KH |
5293 | |
5294 | if (! face) | |
5295 | return Qnil; | |
a1a552b3 | 5296 | #ifdef HAVE_WINDOW_SYSTEM |
75dad34a | 5297 | if (FRAME_WINDOW_P (f) && !NILP (character)) |
a1a552b3 KH |
5298 | { |
5299 | CHECK_CHARACTER (character); | |
5300 | face_id = FACE_FOR_CHAR (f, face, XINT (character), -1, Qnil); | |
5301 | face = FACE_FROM_ID (f, face_id); | |
5302 | return (face->font && face->font_name | |
5303 | ? build_string (face->font_name) | |
5304 | : Qnil); | |
5305 | } | |
5306 | #endif | |
5307 | return build_string (face->font_name); | |
82641697 GM |
5308 | } |
5309 | } | |
5310 | ||
5311 | ||
9717e36c | 5312 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
5313 | all attributes are `equal'. Tries to be fast because this function |
5314 | is called quite often. */ | |
5315 | ||
5316 | static INLINE int | |
9717e36c | 5317 | face_attr_equal_p (v1, v2) |
3ebc0939 | 5318 | Lisp_Object v1, v2; |
82641697 | 5319 | { |
9717e36c MB |
5320 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
5321 | and the other is specified. */ | |
5322 | if (XTYPE (v1) != XTYPE (v2)) | |
5323 | return 0; | |
82641697 | 5324 | |
9717e36c MB |
5325 | if (EQ (v1, v2)) |
5326 | return 1; | |
82641697 | 5327 | |
9717e36c MB |
5328 | switch (XTYPE (v1)) |
5329 | { | |
5330 | case Lisp_String: | |
5331 | if (SBYTES (v1) != SBYTES (v2)) | |
5332 | return 0; | |
82641697 | 5333 | |
9717e36c | 5334 | return bcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 5335 | |
9717e36c MB |
5336 | case Lisp_Int: |
5337 | case Lisp_Symbol: | |
5338 | return 0; | |
178c5d9c | 5339 | |
9717e36c MB |
5340 | default: |
5341 | return !NILP (Fequal (v1, v2)); | |
82641697 | 5342 | } |
9717e36c MB |
5343 | } |
5344 | ||
5345 | ||
5346 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
5347 | all attributes are `equal'. Tries to be fast because this function | |
5348 | is called quite often. */ | |
5349 | ||
5350 | static INLINE int | |
5351 | lface_equal_p (v1, v2) | |
5352 | Lisp_Object *v1, *v2; | |
5353 | { | |
5354 | int i, equal_p = 1; | |
5355 | ||
5356 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
5357 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 5358 | |
82641697 GM |
5359 | return equal_p; |
5360 | } | |
5361 | ||
5362 | ||
5363 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
5364 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 5365 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
5366 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
5367 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 MB |
5368 | If FRAME is omitted or nil, use the selected frame. */) |
5369 | (face1, face2, frame) | |
82641697 GM |
5370 | Lisp_Object face1, face2, frame; |
5371 | { | |
5372 | int equal_p; | |
7b953c9c | 5373 | struct frame *f; |
82641697 | 5374 | Lisp_Object lface1, lface2; |
178c5d9c | 5375 | |
7b953c9c MB |
5376 | if (EQ (frame, Qt)) |
5377 | f = NULL; | |
5378 | else | |
5379 | /* Don't use check_x_frame here because this function is called | |
5380 | before X frames exist. At that time, if FRAME is nil, | |
5381 | selected_frame will be used which is the frame dumped with | |
5382 | Emacs. That frame is not an X frame. */ | |
5383 | f = frame_or_selected_frame (frame, 2); | |
5384 | ||
03f11322 JB |
5385 | lface1 = lface_from_face_name (f, face1, 1); |
5386 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
5387 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
5388 | XVECTOR (lface2)->contents); | |
5389 | return equal_p ? Qt : Qnil; | |
5390 | } | |
5391 | ||
178c5d9c | 5392 | |
82641697 GM |
5393 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
5394 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 5395 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
5396 | If the optional argument FRAME is given, report on face FACE in that frame. |
5397 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
5398 | If FRAME is omitted or nil, use the selected frame. */) |
5399 | (face, frame) | |
82641697 GM |
5400 | Lisp_Object face, frame; |
5401 | { | |
5402 | struct frame *f; | |
5403 | Lisp_Object lface; | |
5404 | int i; | |
5405 | ||
5406 | if (NILP (frame)) | |
c0617987 | 5407 | frame = selected_frame; |
b7826503 | 5408 | CHECK_LIVE_FRAME (frame); |
c0617987 | 5409 | f = XFRAME (frame); |
178c5d9c | 5410 | |
82641697 GM |
5411 | if (EQ (frame, Qt)) |
5412 | lface = lface_from_face_name (NULL, face, 1); | |
5413 | else | |
5414 | lface = lface_from_face_name (f, face, 1); | |
5415 | ||
5416 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 5417 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 5418 | break; |
178c5d9c | 5419 | |
82641697 GM |
5420 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
5421 | } | |
5422 | ||
5423 | ||
5424 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 5425 | 0, 1, 0, |
7ee72033 MB |
5426 | doc: /* Return an alist of frame-local faces defined on FRAME. |
5427 | For internal use only. */) | |
5428 | (frame) | |
82641697 GM |
5429 | Lisp_Object frame; |
5430 | { | |
5431 | struct frame *f = frame_or_selected_frame (frame, 0); | |
5432 | return f->face_alist; | |
5433 | } | |
5434 | ||
5435 | ||
5436 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
5437 | below in computing a hash value for a Lisp face. */ | |
5438 | ||
5439 | static INLINE unsigned | |
5440 | hash_string_case_insensitive (string) | |
5441 | Lisp_Object string; | |
5442 | { | |
53c208f6 | 5443 | const unsigned char *s; |
82641697 GM |
5444 | unsigned hash = 0; |
5445 | xassert (STRINGP (string)); | |
d5db4077 | 5446 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
5447 | hash = (hash << 1) ^ tolower (*s); |
5448 | return hash; | |
5449 | } | |
5450 | ||
5451 | ||
5452 | /* Return a hash code for face attribute vector V. */ | |
5453 | ||
5454 | static INLINE unsigned | |
5455 | lface_hash (v) | |
5456 | Lisp_Object *v; | |
5457 | { | |
5458 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
5459 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
5460 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
5461 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
5462 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
5463 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
5464 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
5465 | } | |
5466 | ||
5467 | ||
5468 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
5469 | considering charsets/registries). They do if they specify the same | |
763bc839 KH |
5470 | family, point size, weight, width, slant, font, and fontset. Both |
5471 | LFACE1 and LFACE2 must be fully-specified. */ | |
82641697 GM |
5472 | |
5473 | static INLINE int | |
5474 | lface_same_font_attributes_p (lface1, lface2) | |
5475 | Lisp_Object *lface1, *lface2; | |
5476 | { | |
5477 | xassert (lface_fully_specified_p (lface1) | |
5478 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
5479 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
5480 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 5481 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 5482 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 5483 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 5484 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
5485 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
5486 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
5487 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 5488 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
8f924df7 KH |
5489 | && ! xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
5490 | SDATA (lface2[LFACE_FONT_INDEX])))) | |
763bc839 KH |
5491 | && (EQ (lface1[LFACE_FONTSET_INDEX], lface2[LFACE_FONTSET_INDEX]) |
5492 | || (STRINGP (lface1[LFACE_FONTSET_INDEX]) | |
5493 | && STRINGP (lface2[LFACE_FONTSET_INDEX]) | |
8f924df7 KH |
5494 | && ! xstricmp (SDATA (lface1[LFACE_FONTSET_INDEX]), |
5495 | SDATA (lface2[LFACE_FONTSET_INDEX])))) | |
763bc839 | 5496 | ); |
82641697 GM |
5497 | } |
5498 | ||
5499 | ||
5500 | \f | |
5501 | /*********************************************************************** | |
5502 | Realized Faces | |
5503 | ***********************************************************************/ | |
5504 | ||
5505 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 5506 | vector ATTR. */ |
82641697 GM |
5507 | |
5508 | static struct face * | |
39506348 | 5509 | make_realized_face (attr) |
82641697 | 5510 | Lisp_Object *attr; |
82641697 GM |
5511 | { |
5512 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5513 | bzero (face, sizeof *face); | |
39506348 | 5514 | face->ascii_face = face; |
82641697 GM |
5515 | bcopy (attr, face->lface, sizeof face->lface); |
5516 | return face; | |
5517 | } | |
5518 | ||
5519 | ||
5520 | /* Free realized face FACE, including its X resources. FACE may | |
5521 | be null. */ | |
5522 | ||
81b39386 | 5523 | void |
82641697 GM |
5524 | free_realized_face (f, face) |
5525 | struct frame *f; | |
5526 | struct face *face; | |
5527 | { | |
5528 | if (face) | |
5529 | { | |
c3cee013 JR |
5530 | #ifdef HAVE_WINDOW_SYSTEM |
5531 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5532 | { |
39506348 KH |
5533 | /* Free fontset of FACE if it is ASCII face. */ |
5534 | if (face->fontset >= 0 && face == face->ascii_face) | |
5535 | free_face_fontset (f, face); | |
82641697 GM |
5536 | if (face->gc) |
5537 | { | |
426b2119 KH |
5538 | #ifdef USE_FONT_BACKEND |
5539 | if (enable_font_backend && face->font_info) | |
5540 | font_done_for_face (f, face); | |
5541 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5542 | x_free_gc (f, face->gc); |
5543 | face->gc = 0; | |
5544 | } | |
178c5d9c | 5545 | |
82641697 GM |
5546 | free_face_colors (f, face); |
5547 | x_destroy_bitmap (f, face->stipple); | |
5548 | } | |
c3cee013 | 5549 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5550 | |
5551 | xfree (face); | |
5552 | } | |
5553 | } | |
5554 | ||
5555 | ||
5556 | /* Prepare face FACE for subsequent display on frame F. This | |
5557 | allocated GCs if they haven't been allocated yet or have been freed | |
5558 | by clearing the face cache. */ | |
5559 | ||
5560 | void | |
5561 | prepare_face_for_display (f, face) | |
5562 | struct frame *f; | |
5563 | struct face *face; | |
5564 | { | |
c3cee013 JR |
5565 | #ifdef HAVE_WINDOW_SYSTEM |
5566 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5567 | |
82641697 GM |
5568 | if (face->gc == 0) |
5569 | { | |
5570 | XGCValues xgcv; | |
5571 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5572 | ||
5573 | xgcv.foreground = face->foreground; | |
5574 | xgcv.background = face->background; | |
c3cee013 | 5575 | #ifdef HAVE_X_WINDOWS |
82641697 | 5576 | xgcv.graphics_exposures = False; |
c3cee013 | 5577 | #endif |
82641697 GM |
5578 | /* The font of FACE may be null if we couldn't load it. */ |
5579 | if (face->font) | |
5580 | { | |
c3cee013 | 5581 | #ifdef HAVE_X_WINDOWS |
82641697 | 5582 | xgcv.font = face->font->fid; |
c3cee013 JR |
5583 | #endif |
5584 | #ifdef WINDOWSNT | |
5585 | xgcv.font = face->font; | |
1a578e9b | 5586 | #endif |
e0f712ba | 5587 | #ifdef MAC_OS |
1a578e9b | 5588 | xgcv.font = face->font; |
c3cee013 | 5589 | #endif |
82641697 GM |
5590 | mask |= GCFont; |
5591 | } | |
5592 | ||
5593 | BLOCK_INPUT; | |
c3cee013 | 5594 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5595 | if (face->stipple) |
5596 | { | |
be8a72f4 | 5597 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5598 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5599 | mask |= GCFillStyle | GCStipple; | |
5600 | } | |
c3cee013 | 5601 | #endif |
82641697 | 5602 | face->gc = x_create_gc (f, mask, &xgcv); |
426b2119 KH |
5603 | #ifdef USE_FONT_BACKEND |
5604 | if (enable_font_backend && face->font) | |
5605 | font_prepare_for_face (f, face); | |
5606 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5607 | UNBLOCK_INPUT; |
5608 | } | |
c3cee013 | 5609 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5610 | } |
5611 | ||
82641697 | 5612 | \f |
b35df831 MB |
5613 | /* Returns the `distance' between the colors X and Y. */ |
5614 | ||
5615 | static int | |
5616 | color_distance (x, y) | |
5617 | XColor *x, *y; | |
5618 | { | |
5619 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5620 | Quoting from that paper: | |
5621 | ||
5622 | This formula has results that are very close to L*u*v* (with the | |
5623 | modified lightness curve) and, more importantly, it is a more even | |
5624 | algorithm: it does not have a range of colours where it suddenly | |
5625 | gives far from optimal results. | |
5626 | ||
5627 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5628 | ||
5629 | long r = (x->red - y->red) >> 8; | |
5630 | long g = (x->green - y->green) >> 8; | |
5631 | long b = (x->blue - y->blue) >> 8; | |
5632 | long r_mean = (x->red + y->red) >> 9; | |
5633 | ||
5634 | return | |
5635 | (((512 + r_mean) * r * r) >> 8) | |
5636 | + 4 * g * g | |
5637 | + (((767 - r_mean) * b * b) >> 8); | |
5638 | } | |
5639 | ||
5640 | ||
5641 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5642 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5643 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5644 | or lists of the form (RED GREEN BLUE). | |
5645 | If FRAME is unspecified or nil, the current frame is used. */) | |
5646 | (color1, color2, frame) | |
5647 | Lisp_Object color1, color2, frame; | |
5648 | { | |
5649 | struct frame *f; | |
5650 | XColor cdef1, cdef2; | |
5651 | ||
5652 | if (NILP (frame)) | |
5653 | frame = selected_frame; | |
5654 | CHECK_LIVE_FRAME (frame); | |
5655 | f = XFRAME (frame); | |
5656 | ||
5657 | if ((CONSP (color1) && !parse_rgb_list (color1, &cdef1)) | |
5658 | || !STRINGP (color1) | |
d5db4077 | 5659 | || !defined_color (f, SDATA (color1), &cdef1, 0)) |
b35df831 MB |
5660 | signal_error ("Invalid color", color1); |
5661 | if ((CONSP (color2) && !parse_rgb_list (color2, &cdef2)) | |
5662 | || !STRINGP (color2) | |
d5db4077 | 5663 | || !defined_color (f, SDATA (color2), &cdef2, 0)) |
b35df831 MB |
5664 | signal_error ("Invalid color", color2); |
5665 | ||
5666 | return make_number (color_distance (&cdef1, &cdef2)); | |
5667 | } | |
5668 | ||
5669 | \f | |
82641697 GM |
5670 | /*********************************************************************** |
5671 | Face Cache | |
5672 | ***********************************************************************/ | |
5673 | ||
5674 | /* Return a new face cache for frame F. */ | |
5675 | ||
5676 | static struct face_cache * | |
5677 | make_face_cache (f) | |
5678 | struct frame *f; | |
5679 | { | |
5680 | struct face_cache *c; | |
5681 | int size; | |
5682 | ||
5683 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5684 | bzero (c, sizeof *c); | |
5685 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5686 | c->buckets = (struct face **) xmalloc (size); | |
5687 | bzero (c->buckets, size); | |
5688 | c->size = 50; | |
5689 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5690 | c->f = f; | |
ceeda019 | 5691 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5692 | return c; |
5693 | } | |
5694 | ||
5695 | ||
5696 | /* Clear out all graphics contexts for all realized faces, except for | |
5697 | the basic faces. This should be done from time to time just to avoid | |
5698 | keeping too many graphics contexts that are no longer needed. */ | |
5699 | ||
5700 | static void | |
5701 | clear_face_gcs (c) | |
5702 | struct face_cache *c; | |
5703 | { | |
c3cee013 | 5704 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5705 | { |
c3cee013 | 5706 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5707 | int i; |
5708 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5709 | { | |
5710 | struct face *face = c->faces_by_id[i]; | |
5711 | if (face && face->gc) | |
5712 | { | |
426b2119 KH |
5713 | #ifdef USE_FONT_BACKEND |
5714 | if (enable_font_backend && face->font_info) | |
5715 | font_done_for_face (c->f, face); | |
5716 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5717 | x_free_gc (c->f, face->gc); |
5718 | face->gc = 0; | |
5719 | } | |
5720 | } | |
c3cee013 | 5721 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5722 | } |
5723 | } | |
5724 | ||
5725 | ||
7fc92635 JB |
5726 | /* Free all realized faces in face cache C, including basic faces. |
5727 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
5728 | matrix is marked invalid, so that a display caused by an expose |
5729 | event doesn't try to use faces we destroyed. */ | |
5730 | ||
5731 | static void | |
5732 | free_realized_faces (c) | |
5733 | struct face_cache *c; | |
5734 | { | |
5735 | if (c && c->used) | |
5736 | { | |
5737 | int i, size; | |
5738 | struct frame *f = c->f; | |
5739 | ||
84ec3b4b GM |
5740 | /* We must block input here because we can't process X events |
5741 | safely while only some faces are freed, or when the frame's | |
5742 | current matrix still references freed faces. */ | |
5743 | BLOCK_INPUT; | |
5744 | ||
82641697 GM |
5745 | for (i = 0; i < c->used; ++i) |
5746 | { | |
5747 | free_realized_face (f, c->faces_by_id[i]); | |
5748 | c->faces_by_id[i] = NULL; | |
5749 | } | |
178c5d9c | 5750 | |
82641697 GM |
5751 | c->used = 0; |
5752 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5753 | bzero (c->buckets, size); | |
5754 | ||
5755 | /* Must do a thorough redisplay the next time. Mark current | |
5756 | matrices as invalid because they will reference faces freed | |
5757 | above. This function is also called when a frame is | |
5758 | destroyed. In this case, the root window of F is nil. */ | |
5759 | if (WINDOWP (f->root_window)) | |
5760 | { | |
5761 | clear_current_matrices (f); | |
5762 | ++windows_or_buffers_changed; | |
5763 | } | |
84ec3b4b GM |
5764 | |
5765 | UNBLOCK_INPUT; | |
82641697 GM |
5766 | } |
5767 | } | |
5768 | ||
5769 | ||
81b39386 | 5770 | /* Free all realized faces that are using FONTSET on frame F. */ |
39506348 KH |
5771 | |
5772 | void | |
81b39386 | 5773 | free_realized_faces_for_fontset (f, fontset) |
39506348 KH |
5774 | struct frame *f; |
5775 | int fontset; | |
5776 | { | |
5777 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5778 | struct face *face; | |
5779 | int i; | |
5780 | ||
84ec3b4b GM |
5781 | /* We must block input here because we can't process X events safely |
5782 | while only some faces are freed, or when the frame's current | |
5783 | matrix still references freed faces. */ | |
5784 | BLOCK_INPUT; | |
178c5d9c | 5785 | |
39506348 KH |
5786 | for (i = 0; i < cache->used; i++) |
5787 | { | |
5788 | face = cache->faces_by_id[i]; | |
5789 | if (face | |
39506348 KH |
5790 | && face->fontset == fontset) |
5791 | { | |
5792 | uncache_face (cache, face); | |
5793 | free_realized_face (f, face); | |
5794 | } | |
5795 | } | |
178c5d9c | 5796 | |
84ec3b4b GM |
5797 | /* Must do a thorough redisplay the next time. Mark current |
5798 | matrices as invalid because they will reference faces freed | |
5799 | above. This function is also called when a frame is destroyed. | |
5800 | In this case, the root window of F is nil. */ | |
39506348 KH |
5801 | if (WINDOWP (f->root_window)) |
5802 | { | |
5803 | clear_current_matrices (f); | |
5804 | ++windows_or_buffers_changed; | |
5805 | } | |
178c5d9c | 5806 | |
84ec3b4b | 5807 | UNBLOCK_INPUT; |
39506348 KH |
5808 | } |
5809 | ||
5810 | ||
82641697 GM |
5811 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5812 | This is done after attributes of a named face have been changed, | |
5813 | because we can't tell which realized faces depend on that face. */ | |
5814 | ||
5815 | void | |
5816 | free_all_realized_faces (frame) | |
5817 | Lisp_Object frame; | |
5818 | { | |
5819 | if (NILP (frame)) | |
5820 | { | |
5821 | Lisp_Object rest; | |
5822 | FOR_EACH_FRAME (rest, frame) | |
5823 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5824 | } | |
5825 | else | |
5826 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5827 | } | |
5828 | ||
5829 | ||
5830 | /* Free face cache C and faces in it, including their X resources. */ | |
5831 | ||
5832 | static void | |
5833 | free_face_cache (c) | |
5834 | struct face_cache *c; | |
5835 | { | |
5836 | if (c) | |
5837 | { | |
5838 | free_realized_faces (c); | |
5839 | xfree (c->buckets); | |
5840 | xfree (c->faces_by_id); | |
5841 | xfree (c); | |
5842 | } | |
5843 | } | |
5844 | ||
5845 | ||
5846 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
af53b43c KH |
5847 | of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face == |
5848 | FACE), insert the new face to the beginning of the collision list | |
5849 | of the face hash table of C. Otherwise, add the new face to the | |
5850 | end of the collision list. This way, lookup_face can quickly find | |
5851 | that a requested face is not cached. */ | |
82641697 GM |
5852 | |
5853 | static void | |
5854 | cache_face (c, face, hash) | |
5855 | struct face_cache *c; | |
5856 | struct face *face; | |
5857 | unsigned hash; | |
5858 | { | |
5859 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5860 | ||
5861 | face->hash = hash; | |
5862 | ||
af53b43c | 5863 | if (face->ascii_face != face) |
82641697 GM |
5864 | { |
5865 | struct face *last = c->buckets[i]; | |
5866 | if (last) | |
5867 | { | |
5868 | while (last->next) | |
5869 | last = last->next; | |
5870 | last->next = face; | |
5871 | face->prev = last; | |
5872 | face->next = NULL; | |
5873 | } | |
5874 | else | |
5875 | { | |
5876 | c->buckets[i] = face; | |
5877 | face->prev = face->next = NULL; | |
5878 | } | |
5879 | } | |
5880 | else | |
5881 | { | |
5882 | face->prev = NULL; | |
5883 | face->next = c->buckets[i]; | |
5884 | if (face->next) | |
5885 | face->next->prev = face; | |
5886 | c->buckets[i] = face; | |
5887 | } | |
5888 | ||
5889 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5890 | slot as FACE->id. */ | |
5891 | for (i = 0; i < c->used; ++i) | |
5892 | if (c->faces_by_id[i] == NULL) | |
5893 | break; | |
5894 | face->id = i; | |
178c5d9c | 5895 | |
82641697 | 5896 | /* Maybe enlarge C->faces_by_id. */ |
6b61353c | 5897 | if (i == c->used) |
82641697 | 5898 | { |
6b61353c KH |
5899 | if (c->used == c->size) |
5900 | { | |
5901 | int new_size, sz; | |
5902 | new_size = min (2 * c->size, MAX_FACE_ID); | |
5903 | if (new_size == c->size) | |
5904 | abort (); /* Alternatives? ++kfs */ | |
5905 | sz = new_size * sizeof *c->faces_by_id; | |
5906 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5907 | c->size = new_size; | |
5908 | } | |
5909 | c->used++; | |
82641697 GM |
5910 | } |
5911 | ||
5912 | #if GLYPH_DEBUG | |
5913 | /* Check that FACE got a unique id. */ | |
5914 | { | |
5915 | int j, n; | |
5916 | struct face *face; | |
5917 | ||
5918 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5919 | for (face = c->buckets[j]; face; face = face->next) | |
5920 | if (face->id == i) | |
5921 | ++n; | |
5922 | ||
5923 | xassert (n == 1); | |
5924 | } | |
5925 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5926 | |
82641697 | 5927 | c->faces_by_id[i] = face; |
82641697 GM |
5928 | } |
5929 | ||
5930 | ||
5931 | /* Remove face FACE from cache C. */ | |
5932 | ||
5933 | static void | |
5934 | uncache_face (c, face) | |
5935 | struct face_cache *c; | |
5936 | struct face *face; | |
5937 | { | |
5938 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5939 | |
82641697 GM |
5940 | if (face->prev) |
5941 | face->prev->next = face->next; | |
5942 | else | |
5943 | c->buckets[i] = face->next; | |
178c5d9c | 5944 | |
82641697 GM |
5945 | if (face->next) |
5946 | face->next->prev = face->prev; | |
178c5d9c | 5947 | |
82641697 GM |
5948 | c->faces_by_id[face->id] = NULL; |
5949 | if (face->id == c->used) | |
5950 | --c->used; | |
5951 | } | |
5952 | ||
5953 | ||
5954 | /* Look up a realized face with face attributes ATTR in the face cache | |
af53b43c KH |
5955 | of frame F. The face will be used to display ASCII characters. |
5956 | Value is the ID of the face found. If no suitable face is found, | |
5957 | realize a new one. */ | |
82641697 GM |
5958 | |
5959 | INLINE int | |
af53b43c | 5960 | lookup_face (f, attr) |
82641697 GM |
5961 | struct frame *f; |
5962 | Lisp_Object *attr; | |
82641697 | 5963 | { |
39506348 | 5964 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5965 | unsigned hash; |
5966 | int i; | |
5967 | struct face *face; | |
5968 | ||
39506348 | 5969 | xassert (cache != NULL); |
82641697 GM |
5970 | check_lface_attrs (attr); |
5971 | ||
5972 | /* Look up ATTR in the face cache. */ | |
5973 | hash = lface_hash (attr); | |
5974 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5975 | |
39506348 | 5976 | for (face = cache->buckets[i]; face; face = face->next) |
af53b43c KH |
5977 | { |
5978 | if (face->ascii_face != face) | |
5979 | { | |
5980 | /* There's no more ASCII face. */ | |
5981 | face = NULL; | |
5982 | break; | |
5983 | } | |
5984 | if (face->hash == hash | |
5985 | && lface_equal_p (face->lface, attr)) | |
5986 | break; | |
5987 | } | |
82641697 GM |
5988 | |
5989 | /* If not found, realize a new face. */ | |
5990 | if (face == NULL) | |
af53b43c | 5991 | face = realize_face (cache, attr, -1); |
82641697 GM |
5992 | |
5993 | #if GLYPH_DEBUG | |
5994 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 5995 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5996 | |
82641697 GM |
5997 | return face->id; |
5998 | } | |
5999 | ||
8c6204de | 6000 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
6001 | /* Look up a realized face that has the same attributes as BASE_FACE |
6002 | except for the font in the face cache of frame F. If FONT_ID is | |
6003 | not negative, it is an ID number of an already opened font that is | |
6004 | used by the face. If FONT_ID is negative, the face has no font. | |
6005 | Value is the ID of the face found. If no suitable face is found, | |
6006 | realize a new one. */ | |
6007 | ||
8f924df7 | 6008 | int |
af53b43c KH |
6009 | lookup_non_ascii_face (f, font_id, base_face) |
6010 | struct frame *f; | |
6011 | int font_id; | |
6012 | struct face *base_face; | |
6013 | { | |
6014 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6015 | unsigned hash; | |
6016 | int i; | |
6017 | struct face *face; | |
6018 | ||
6019 | xassert (cache != NULL); | |
6020 | base_face = base_face->ascii_face; | |
6021 | hash = lface_hash (base_face->lface); | |
6022 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6023 | ||
6024 | for (face = cache->buckets[i]; face; face = face->next) | |
6025 | { | |
6026 | if (face->ascii_face == face) | |
6027 | continue; | |
6028 | if (face->ascii_face == base_face | |
6029 | && face->font_info_id == font_id) | |
6030 | break; | |
6031 | } | |
6032 | ||
6033 | /* If not found, realize a new face. */ | |
6034 | if (face == NULL) | |
6035 | face = realize_non_ascii_face (f, font_id, base_face); | |
6036 | ||
6037 | #if GLYPH_DEBUG | |
6038 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 6039 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 6040 | |
82641697 GM |
6041 | return face->id; |
6042 | } | |
426b2119 KH |
6043 | |
6044 | #ifdef USE_FONT_BACKEND | |
6045 | int | |
6046 | face_for_font (f, font, base_face) | |
6047 | struct frame *f; | |
6048 | struct font *font; | |
6049 | struct face *base_face; | |
6050 | { | |
6051 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6052 | unsigned hash; | |
6053 | int i; | |
6054 | struct face *face; | |
6055 | ||
6056 | xassert (cache != NULL); | |
6057 | base_face = base_face->ascii_face; | |
6058 | hash = lface_hash (base_face->lface); | |
6059 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6060 | ||
6061 | for (face = cache->buckets[i]; face; face = face->next) | |
6062 | { | |
6063 | if (face->ascii_face == face) | |
6064 | continue; | |
6065 | if (face->ascii_face == base_face | |
6066 | && face->font_info == (struct font_info *) font) | |
6067 | return face->id; | |
6068 | } | |
6069 | ||
6070 | /* If not found, realize a new face. */ | |
6071 | face = realize_non_ascii_face (f, -1, base_face); | |
6072 | face->font = font->font.font; | |
6073 | face->font_info = (struct font_info *) font; | |
6074 | face->font_info_id = 0; | |
6075 | face->font_name = font->font.full_name; | |
6076 | return face->id; | |
6077 | } | |
6078 | #endif /* USE_FONT_BACKEND */ | |
6079 | ||
8c6204de | 6080 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6081 | |
82641697 | 6082 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6083 | frame F suitable for displaying ASCII characters. Value is -1 if |
6084 | the face couldn't be determined, which might happen if the default | |
6085 | face isn't realized and cannot be realized. */ | |
82641697 GM |
6086 | |
6087 | int | |
000fc2b1 | 6088 | lookup_named_face (f, symbol, signal_p) |
82641697 GM |
6089 | struct frame *f; |
6090 | Lisp_Object symbol; | |
2272e967 | 6091 | int signal_p; |
82641697 GM |
6092 | { |
6093 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6094 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6095 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6096 | ||
b5de343d GM |
6097 | if (default_face == NULL) |
6098 | { | |
6099 | if (!realize_basic_faces (f)) | |
6100 | return -1; | |
6101 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6102 | } | |
6103 | ||
2272e967 KS |
6104 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p)) |
6105 | return -1; | |
6106 | ||
82641697 | 6107 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 MB |
6108 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
6109 | ||
af53b43c | 6110 | return lookup_face (f, attrs); |
82641697 GM |
6111 | } |
6112 | ||
6113 | ||
6114 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
6115 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
6116 | ||
6117 | int | |
6118 | ascii_face_of_lisp_face (f, lface_id) | |
6119 | struct frame *f; | |
6120 | int lface_id; | |
6121 | { | |
6122 | int face_id; | |
178c5d9c | 6123 | |
82641697 GM |
6124 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
6125 | { | |
6126 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
000fc2b1 | 6127 | face_id = lookup_named_face (f, face_name, 1); |
82641697 GM |
6128 | } |
6129 | else | |
6130 | face_id = -1; | |
6131 | ||
6132 | return face_id; | |
6133 | } | |
6134 | ||
6135 | ||
6136 | /* Return a face for charset ASCII that is like the face with id | |
6137 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
6138 | STEPS < 0 means larger. Value is the id of the face. */ | |
6139 | ||
6140 | int | |
6141 | smaller_face (f, face_id, steps) | |
6142 | struct frame *f; | |
6143 | int face_id, steps; | |
39506348 | 6144 | { |
c3cee013 | 6145 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6146 | struct face *face; |
6147 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6148 | int pt, last_pt, last_height; | |
6149 | int delta; | |
6150 | int new_face_id; | |
6151 | struct face *new_face; | |
6152 | ||
6153 | /* If not called for an X frame, just return the original face. */ | |
6154 | if (FRAME_TERMCAP_P (f)) | |
6155 | return face_id; | |
6156 | ||
6157 | /* Try in increments of 1/2 pt. */ | |
6158 | delta = steps < 0 ? 5 : -5; | |
6159 | steps = abs (steps); | |
178c5d9c | 6160 | |
82641697 GM |
6161 | face = FACE_FROM_ID (f, face_id); |
6162 | bcopy (face->lface, attrs, sizeof attrs); | |
6163 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6164 | new_face_id = face_id; | |
6165 | last_height = FONT_HEIGHT (face->font); | |
6166 | ||
6167 | while (steps | |
6168 | && pt + delta > 0 | |
6169 | /* Give up if we cannot find a font within 10pt. */ | |
6170 | && abs (last_pt - pt) < 100) | |
6171 | { | |
6172 | /* Look up a face for a slightly smaller/larger font. */ | |
6173 | pt += delta; | |
6174 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
af53b43c | 6175 | new_face_id = lookup_face (f, attrs); |
82641697 GM |
6176 | new_face = FACE_FROM_ID (f, new_face_id); |
6177 | ||
6178 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
6179 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
6180 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
6181 | { |
6182 | --steps; | |
6183 | last_height = FONT_HEIGHT (new_face->font); | |
6184 | last_pt = pt; | |
6185 | } | |
6186 | } | |
6187 | ||
6188 | return new_face_id; | |
6189 | ||
c3cee013 | 6190 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6191 | |
6192 | return face_id; | |
178c5d9c | 6193 | |
c3cee013 | 6194 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6195 | } |
6196 | ||
6197 | ||
6198 | /* Return a face for charset ASCII that is like the face with id | |
6199 | FACE_ID on frame F, but has height HEIGHT. */ | |
6200 | ||
6201 | int | |
6202 | face_with_height (f, face_id, height) | |
6203 | struct frame *f; | |
6204 | int face_id; | |
6205 | int height; | |
6206 | { | |
c3cee013 | 6207 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6208 | struct face *face; |
6209 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6210 | ||
6211 | if (FRAME_TERMCAP_P (f) | |
6212 | || height <= 0) | |
6213 | return face_id; | |
6214 | ||
6215 | face = FACE_FROM_ID (f, face_id); | |
6216 | bcopy (face->lface, attrs, sizeof attrs); | |
6217 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
af53b43c | 6218 | face_id = lookup_face (f, attrs); |
c3cee013 | 6219 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 6220 | |
82641697 GM |
6221 | return face_id; |
6222 | } | |
6223 | ||
b5de343d | 6224 | |
44747bd0 | 6225 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6226 | frame F suitable for displaying ASCII characters, and use |
6227 | attributes of the face FACE_ID for attributes that aren't | |
6228 | completely specified by SYMBOL. This is like lookup_named_face, | |
6229 | except that the default attributes come from FACE_ID, not from the | |
6230 | default face. FACE_ID is assumed to be already realized. */ | |
44747bd0 EZ |
6231 | |
6232 | int | |
5c538596 | 6233 | lookup_derived_face (f, symbol, face_id, signal_p) |
44747bd0 EZ |
6234 | struct frame *f; |
6235 | Lisp_Object symbol; | |
44747bd0 | 6236 | int face_id; |
5c538596 | 6237 | int signal_p; |
44747bd0 EZ |
6238 | { |
6239 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6240 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6241 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
6242 | ||
6243 | if (!default_face) | |
6244 | abort (); | |
6245 | ||
d196a547 | 6246 | get_lface_attributes (f, symbol, symbol_attrs, signal_p); |
44747bd0 | 6247 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 | 6248 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
af53b43c | 6249 | return lookup_face (f, attrs); |
44747bd0 EZ |
6250 | } |
6251 | ||
f6608d5c RS |
6252 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
6253 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 6254 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
6255 | (plist) |
6256 | Lisp_Object plist; | |
6257 | { | |
6258 | Lisp_Object lface; | |
6259 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
6260 | Qunspecified); | |
a0a23346 MB |
6261 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
6262 | 1, 0); | |
f6608d5c RS |
6263 | return lface; |
6264 | } | |
6265 | ||
82641697 GM |
6266 | |
6267 | \f | |
9717e36c MB |
6268 | /*********************************************************************** |
6269 | Face capability testing | |
6270 | ***********************************************************************/ | |
6271 | ||
6272 | ||
6273 | /* If the distance (as returned by color_distance) between two colors is | |
6274 | less than this, then they are considered the same, for determining | |
6275 | whether a color is supported or not. The range of values is 0-65535. */ | |
6276 | ||
6277 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
6278 | ||
ccda4e3c | 6279 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
6280 | |
6281 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6282 | on the window-system frame F. | |
6283 | ||
6284 | The definition of `supported' is somewhat heuristic, but basically means | |
6285 | that a face containing all the attributes in ATTRS, when merged with the | |
6286 | default face for display, can be represented in a way that's | |
6287 | ||
6288 | \(1) different in appearance than the default face, and | |
8e330b22 | 6289 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
6290 | |
6291 | static int | |
8e330b22 | 6292 | x_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6293 | struct frame *f; |
6294 | Lisp_Object *attrs; | |
8e330b22 | 6295 | struct face *def_face; |
9717e36c | 6296 | { |
8e330b22 | 6297 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
6298 | |
6299 | /* Check that other specified attributes are different that the default | |
6300 | face. */ | |
6301 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
6302 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
6303 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
6304 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
6305 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
6306 | def_attrs[LFACE_INVERSE_INDEX])) | |
6307 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
6308 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
6309 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
6310 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
6311 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
6312 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
6313 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6314 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
6315 | def_attrs[LFACE_STIPPLE_INDEX])) | |
6316 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6317 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
6318 | def_attrs[LFACE_OVERLINE_INDEX])) | |
6319 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6320 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6321 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
6322 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6323 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
6324 | def_attrs[LFACE_BOX_INDEX]))) | |
6325 | return 0; | |
6326 | ||
6327 | /* Check font-related attributes, as those are the most commonly | |
6328 | "unsupported" on a window-system (because of missing fonts). */ | |
6329 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6330 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6331 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
6332 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
6333 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6334 | || !UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX])) | |
6335 | { | |
327719ee | 6336 | int face_id; |
9717e36c MB |
6337 | struct face *face; |
6338 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
6339 | ||
6340 | bcopy (def_attrs, merged_attrs, sizeof merged_attrs); | |
6341 | ||
a0a23346 | 6342 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c | 6343 | |
327719ee MB |
6344 | face_id = lookup_face (f, merged_attrs); |
6345 | face = FACE_FROM_ID (f, face_id); | |
9717e36c MB |
6346 | |
6347 | if (! face) | |
2010ba8c | 6348 | error ("Cannot make face"); |
9717e36c MB |
6349 | |
6350 | /* If the font is the same, then not supported. */ | |
6351 | if (face->font == def_face->font) | |
6352 | return 0; | |
6353 | } | |
6354 | ||
6355 | /* Everything checks out, this face is supported. */ | |
6356 | return 1; | |
6357 | } | |
6358 | ||
ccda4e3c | 6359 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
6360 | |
6361 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6362 | on the tty frame F. | |
6363 | ||
6364 | The definition of `supported' is somewhat heuristic, but basically means | |
6365 | that a face containing all the attributes in ATTRS, when merged | |
6366 | with the default face for display, can be represented in a way that's | |
6367 | ||
6368 | \(1) different in appearance than the default face, and | |
6369 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6370 | ||
6371 | Point (2) implies that a `:weight black' attribute will be satisfied | |
6372 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
6373 | long as the terminal can display a yellowish color, but `:slant italic' | |
6374 | will _not_ be satisfied by the tty display code's automatic | |
6375 | substitution of a `dim' face for italic. */ | |
6376 | ||
6377 | static int | |
8e330b22 | 6378 | tty_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6379 | struct frame *f; |
6380 | Lisp_Object *attrs; | |
8e330b22 | 6381 | struct face *def_face; |
9717e36c | 6382 | { |
734e9514 | 6383 | int weight; |
9717e36c MB |
6384 | Lisp_Object val, fg, bg; |
6385 | XColor fg_tty_color, fg_std_color; | |
6386 | XColor bg_tty_color, bg_std_color; | |
6387 | unsigned test_caps = 0; | |
8e330b22 | 6388 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 6389 | |
9717e36c | 6390 | |
8e330b22 MB |
6391 | /* First check some easy-to-check stuff; ttys support none of the |
6392 | following attributes, so we can just return false if any are requested | |
6393 | (even if `nominal' values are specified, we should still return false, | |
6394 | as that will be the same value that the default face uses). We | |
6395 | consider :slant unsupportable on ttys, even though the face code | |
6396 | actually `fakes' them using a dim attribute if possible. This is | |
6397 | because the faked result is too different from what the face | |
6398 | specifies. */ | |
6399 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6400 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6401 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6402 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6403 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6404 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6405 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6406 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
6407 | return 0; |
6408 | ||
6409 | ||
6410 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
6411 | ||
6412 | /* font weight (bold/dim) */ | |
6413 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6414 | if (weight >= 0) | |
6415 | { | |
8e330b22 MB |
6416 | int def_weight = face_numeric_weight (def_attrs[LFACE_WEIGHT_INDEX]); |
6417 | ||
9717e36c | 6418 | if (weight > XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6419 | { |
6420 | if (def_weight > XLFD_WEIGHT_MEDIUM) | |
6421 | return 0; /* same as default */ | |
6422 | test_caps = TTY_CAP_BOLD; | |
6423 | } | |
9717e36c | 6424 | else if (weight < XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6425 | { |
6426 | if (def_weight < XLFD_WEIGHT_MEDIUM) | |
6427 | return 0; /* same as default */ | |
6428 | test_caps = TTY_CAP_DIM; | |
6429 | } | |
6430 | else if (def_weight == XLFD_WEIGHT_MEDIUM) | |
6431 | return 0; /* same as default */ | |
9717e36c MB |
6432 | } |
6433 | ||
6434 | /* underlining */ | |
6435 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 6436 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
6437 | { |
6438 | if (STRINGP (val)) | |
8e330b22 MB |
6439 | return 0; /* ttys can't use colored underlines */ |
6440 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6441 | return 0; /* same as default */ | |
9717e36c MB |
6442 | else |
6443 | test_caps |= TTY_CAP_UNDERLINE; | |
6444 | } | |
6445 | ||
6446 | /* inverse video */ | |
6447 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
6448 | if (!UNSPECIFIEDP (val)) |
6449 | { | |
6450 | if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6451 | return 0; /* same as default */ | |
6452 | else | |
6453 | test_caps |= TTY_CAP_INVERSE; | |
6454 | } | |
9717e36c MB |
6455 | |
6456 | ||
6457 | /* Color testing. */ | |
6458 | ||
6459 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
6460 | we use them when calling `tty_capable_p' below, even if the face | |
6461 | specifies no colors. */ | |
6462 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6463 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6464 | ||
6465 | /* Check if foreground color is close enough. */ | |
6466 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
6467 | if (STRINGP (fg)) | |
6468 | { | |
8e330b22 MB |
6469 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6470 | ||
6471 | if (face_attr_equal_p (fg, def_fg)) | |
6472 | return 0; /* same as default */ | |
6473 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
6474 | return 0; /* not a valid color */ | |
9717e36c MB |
6475 | else if (color_distance (&fg_tty_color, &fg_std_color) |
6476 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6477 | return 0; /* displayed color is too different */ |
6478 | else | |
6479 | /* Make sure the color is really different than the default. */ | |
6480 | { | |
6481 | XColor def_fg_color; | |
6482 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
6483 | && (color_distance (&fg_tty_color, &def_fg_color) | |
6484 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6485 | return 0; | |
6486 | } | |
9717e36c MB |
6487 | } |
6488 | ||
6489 | /* Check if background color is close enough. */ | |
6490 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
6491 | if (STRINGP (bg)) | |
6492 | { | |
8e330b22 MB |
6493 | Lisp_Object def_bg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6494 | ||
6495 | if (face_attr_equal_p (bg, def_bg)) | |
6496 | return 0; /* same as default */ | |
6497 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
6498 | return 0; /* not a valid color */ | |
9717e36c MB |
6499 | else if (color_distance (&bg_tty_color, &bg_std_color) |
6500 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6501 | return 0; /* displayed color is too different */ |
6502 | else | |
6503 | /* Make sure the color is really different than the default. */ | |
6504 | { | |
6505 | XColor def_bg_color; | |
6506 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
6507 | && (color_distance (&bg_tty_color, &def_bg_color) | |
6508 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6509 | return 0; | |
6510 | } | |
9717e36c MB |
6511 | } |
6512 | ||
6513 | /* If both foreground and background are requested, see if the | |
6514 | distance between them is OK. We just check to see if the distance | |
6515 | between the tty's foreground and background is close enough to the | |
6516 | distance between the standard foreground and background. */ | |
6517 | if (STRINGP (fg) && STRINGP (bg)) | |
6518 | { | |
6519 | int delta_delta | |
6520 | = (color_distance (&fg_std_color, &bg_std_color) | |
6521 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
6522 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
6523 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
6524 | return 0; | |
6525 | } | |
6526 | ||
6527 | ||
6528 | /* See if the capabilities we selected above are supported, with the | |
6529 | given colors. */ | |
6530 | if (test_caps != 0 && | |
6531 | ! tty_capable_p (f, test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) | |
6532 | return 0; | |
6533 | ||
6534 | ||
6535 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
6536 | return 1; | |
6537 | } | |
6538 | ||
6539 | ||
6540 | DEFUN ("display-supports-face-attributes-p", | |
6541 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
6542 | 1, 2, 0, | |
6543 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
6544 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 6545 | nil (meaning the selected frame's display). |
9717e36c MB |
6546 | |
6547 | The definition of `supported' is somewhat heuristic, but basically means | |
6548 | that a face containing all the attributes in ATTRIBUTES, when merged | |
6549 | with the default face for display, can be represented in a way that's | |
6550 | ||
6551 | \(1) different in appearance than the default face, and | |
6552 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6553 | ||
6554 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
6555 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
6556 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
6557 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 6558 | face for italic. */) |
9717e36c MB |
6559 | (attributes, display) |
6560 | Lisp_Object attributes, display; | |
6561 | { | |
6562 | int supports, i; | |
6563 | Lisp_Object frame; | |
6564 | struct frame *f; | |
8e330b22 | 6565 | struct face *def_face; |
9717e36c MB |
6566 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6567 | ||
0722292b MB |
6568 | if (noninteractive || !initialized) |
6569 | /* We may not be able to access low-level face information in batch | |
6570 | mode, or before being dumped, and this function is not going to | |
6571 | be very useful in those cases anyway, so just give up. */ | |
6572 | return Qnil; | |
6573 | ||
9717e36c MB |
6574 | if (NILP (display)) |
6575 | frame = selected_frame; | |
6576 | else if (FRAMEP (display)) | |
6577 | frame = display; | |
6578 | else | |
6579 | { | |
6580 | /* Find any frame on DISPLAY. */ | |
6581 | Lisp_Object fl_tail; | |
6582 | ||
6583 | frame = Qnil; | |
6584 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
6585 | { | |
6586 | frame = XCAR (fl_tail); | |
6587 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
6588 | XFRAME (frame)->param_alist)), | |
6589 | display))) | |
6590 | break; | |
6591 | } | |
6592 | } | |
6593 | ||
6594 | CHECK_LIVE_FRAME (frame); | |
6595 | f = XFRAME (frame); | |
6596 | ||
6597 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
6598 | attrs[i] = Qunspecified; | |
a0a23346 | 6599 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 6600 | |
8e330b22 MB |
6601 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6602 | if (def_face == NULL) | |
6603 | { | |
6604 | if (! realize_basic_faces (f)) | |
734e9514 | 6605 | error ("Cannot realize default face"); |
8e330b22 MB |
6606 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6607 | } | |
6608 | ||
9717e36c MB |
6609 | /* Dispatch to the appropriate handler. */ |
6610 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 6611 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 6612 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 6613 | else |
8e330b22 MB |
6614 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
6615 | #endif | |
9717e36c MB |
6616 | |
6617 | return supports ? Qt : Qnil; | |
6618 | } | |
6619 | ||
6620 | \f | |
82641697 GM |
6621 | /*********************************************************************** |
6622 | Font selection | |
6623 | ***********************************************************************/ | |
6624 | ||
8f924df7 | 6625 | DEFUN ("internal-set-font-selection-order", |
82641697 GM |
6626 | Finternal_set_font_selection_order, |
6627 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 6628 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
6629 | ORDER must be a list of length 4 containing the symbols `:width', |
6630 | `:height', `:weight', and `:slant'. Face attributes appearing | |
6631 | first in ORDER are matched first, e.g. if `:height' appears before | |
6632 | `:weight' in ORDER, font selection first tries to find a font with | |
6633 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
6634 | Value is ORDER. */) |
6635 | (order) | |
228299fa | 6636 | Lisp_Object order; |
82641697 GM |
6637 | { |
6638 | Lisp_Object list; | |
6639 | int i; | |
a08332c0 | 6640 | int indices[DIM (font_sort_order)]; |
178c5d9c | 6641 | |
b7826503 | 6642 | CHECK_LIST (order); |
82641697 GM |
6643 | bzero (indices, sizeof indices); |
6644 | i = 0; | |
6645 | ||
6646 | for (list = order; | |
6647 | CONSP (list) && i < DIM (indices); | |
6648 | list = XCDR (list), ++i) | |
6649 | { | |
6650 | Lisp_Object attr = XCAR (list); | |
6651 | int xlfd; | |
6652 | ||
6653 | if (EQ (attr, QCwidth)) | |
6654 | xlfd = XLFD_SWIDTH; | |
6655 | else if (EQ (attr, QCheight)) | |
6656 | xlfd = XLFD_POINT_SIZE; | |
6657 | else if (EQ (attr, QCweight)) | |
6658 | xlfd = XLFD_WEIGHT; | |
6659 | else if (EQ (attr, QCslant)) | |
6660 | xlfd = XLFD_SLANT; | |
6661 | else | |
6662 | break; | |
6663 | ||
6664 | if (indices[i] != 0) | |
6665 | break; | |
6666 | indices[i] = xlfd; | |
6667 | } | |
6668 | ||
a08332c0 | 6669 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 6670 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
6671 | for (i = 0; i < DIM (font_sort_order); ++i) |
6672 | if (indices[i] == 0) | |
6673 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
6674 | |
6675 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
6676 | { | |
6677 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
6678 | free_all_realized_faces (Qnil); | |
6679 | } | |
178c5d9c | 6680 | |
426b2119 KH |
6681 | #ifdef USE_FONT_BACKEND |
6682 | font_update_sort_order (font_sort_order); | |
6683 | #endif /* USE_FONT_BACKEND */ | |
6684 | ||
82641697 GM |
6685 | return Qnil; |
6686 | } | |
6687 | ||
6688 | ||
6689 | DEFUN ("internal-set-alternative-font-family-alist", | |
6690 | Finternal_set_alternative_font_family_alist, | |
6691 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 6692 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
6693 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6694 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
6695 | be found. Value is ALIST. */) |
6696 | (alist) | |
82641697 GM |
6697 | Lisp_Object alist; |
6698 | { | |
b7826503 | 6699 | CHECK_LIST (alist); |
82641697 GM |
6700 | Vface_alternative_font_family_alist = alist; |
6701 | free_all_realized_faces (Qnil); | |
6702 | return alist; | |
6703 | } | |
6704 | ||
6705 | ||
32fcc231 GM |
6706 | DEFUN ("internal-set-alternative-font-registry-alist", |
6707 | Finternal_set_alternative_font_registry_alist, | |
6708 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 6709 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
6710 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6711 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
6712 | be found. Value is ALIST. */) |
6713 | (alist) | |
32fcc231 GM |
6714 | Lisp_Object alist; |
6715 | { | |
b7826503 | 6716 | CHECK_LIST (alist); |
32fcc231 GM |
6717 | Vface_alternative_font_registry_alist = alist; |
6718 | free_all_realized_faces (Qnil); | |
6719 | return alist; | |
6720 | } | |
6721 | ||
6722 | ||
c3cee013 | 6723 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6724 | |
82641697 GM |
6725 | /* Value is non-zero if FONT is the name of a scalable font. The |
6726 | X11R6 XLFD spec says that point size, pixel size, and average width | |
6727 | are zero for scalable fonts. Intlfonts contain at least one | |
6728 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
6729 | just test average width. */ | |
6730 | ||
6731 | static int | |
6732 | font_scalable_p (font) | |
6733 | struct font_name *font; | |
6734 | { | |
6735 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
6736 | return (*s == '0' && *(s + 1) == '\0') |
6737 | #ifdef WINDOWSNT | |
6738 | /* Windows implementation of XLFD is slightly broken for backward | |
6739 | compatibility with previous broken versions, so test for | |
6740 | wildcards as well as 0. */ | |
6741 | || *s == '*' | |
6742 | #endif | |
6743 | ; | |
82641697 GM |
6744 | } |
6745 | ||
6746 | ||
8e1b21a7 KH |
6747 | /* Ignore the difference of font point size less than this value. */ |
6748 | ||
6749 | #define FONT_POINT_SIZE_QUANTUM 5 | |
6750 | ||
82641697 GM |
6751 | /* Value is non-zero if FONT1 is a better match for font attributes |
6752 | VALUES than FONT2. VALUES is an array of face attribute values in | |
6753 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
6754 | sizes. AVGWIDTH, if not zero, is a specified font average width |
6755 | to compare with. */ | |
82641697 GM |
6756 | |
6757 | static int | |
a08332c0 | 6758 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
6759 | int *values; |
6760 | struct font_name *font1, *font2; | |
a08332c0 | 6761 | int compare_pt_p, avgwidth; |
82641697 GM |
6762 | { |
6763 | int i; | |
178c5d9c | 6764 | |
a08332c0 | 6765 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6766 | { |
6767 | int xlfd_idx = font_sort_order[i]; | |
6768 | ||
6769 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
6770 | { | |
f70400f2 KH |
6771 | int delta1, delta2; |
6772 | ||
6773 | if (xlfd_idx == XLFD_POINT_SIZE) | |
6774 | { | |
6775 | delta1 = abs (values[i] - (font1->numeric[xlfd_idx] | |
6776 | / font1->rescale_ratio)); | |
6777 | delta2 = abs (values[i] - (font2->numeric[xlfd_idx] | |
6778 | / font2->rescale_ratio)); | |
6779 | if (abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
6780 | continue; | |
6781 | } | |
6782 | else | |
6783 | { | |
6784 | delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
6785 | delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
6786 | } | |
178c5d9c | 6787 | |
82641697 GM |
6788 | if (delta1 > delta2) |
6789 | return 0; | |
6790 | else if (delta1 < delta2) | |
6791 | return 1; | |
6792 | else | |
6793 | { | |
6794 | /* The difference may be equal because, e.g., the face | |
6795 | specifies `italic' but we have only `regular' and | |
6796 | `oblique'. Prefer `oblique' in this case. */ | |
6797 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6798 | && font1->numeric[xlfd_idx] > values[i] | |
6799 | && font2->numeric[xlfd_idx] < values[i]) | |
6800 | return 1; | |
6801 | } | |
6802 | } | |
6803 | } | |
178c5d9c | 6804 | |
a08332c0 GM |
6805 | if (avgwidth) |
6806 | { | |
6807 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
6808 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
6809 | if (delta1 > delta2) | |
6810 | return 0; | |
6811 | else if (delta1 < delta2) | |
6812 | return 1; | |
6813 | } | |
6814 | ||
6b61353c KH |
6815 | if (! compare_pt_p) |
6816 | { | |
6817 | /* We prefer a real scalable font; i.e. not what autoscaled. */ | |
6818 | int auto_scaled_1 = (font1->numeric[XLFD_POINT_SIZE] == 0 | |
6819 | && font1->numeric[XLFD_RESY] > 0); | |
6820 | int auto_scaled_2 = (font2->numeric[XLFD_POINT_SIZE] == 0 | |
6821 | && font2->numeric[XLFD_RESY] > 0); | |
6822 | ||
6823 | if (auto_scaled_1 != auto_scaled_2) | |
6824 | return auto_scaled_2; | |
6825 | } | |
6826 | ||
a08332c0 | 6827 | return font1->registry_priority < font2->registry_priority; |
82641697 GM |
6828 | } |
6829 | ||
6830 | ||
82641697 GM |
6831 | /* Value is non-zero if FONT is an exact match for face attributes in |
6832 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6833 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6834 | with. */ | |
82641697 GM |
6835 | |
6836 | static int | |
a08332c0 | 6837 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6838 | int *specified; |
6839 | struct font_name *font; | |
a08332c0 | 6840 | int avgwidth; |
82641697 GM |
6841 | { |
6842 | int i; | |
178c5d9c | 6843 | |
a08332c0 | 6844 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6845 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6846 | break; | |
6847 | ||
a08332c0 GM |
6848 | return (i == DIM (font_sort_order) |
6849 | && (avgwidth <= 0 | |
6850 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6851 | } |
6852 | ||
6853 | ||
6854 | /* Value is the name of a scaled font, generated from scalable font | |
6855 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6856 | Value is allocated from heap. */ | |
6857 | ||
6858 | static char * | |
6859 | build_scalable_font_name (f, font, specified_pt) | |
6860 | struct frame *f; | |
6861 | struct font_name *font; | |
6862 | int specified_pt; | |
6863 | { | |
a7255152 | 6864 | char pixel_size[20]; |
82641697 GM |
6865 | int pixel_value; |
6866 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6867 | double pt; | |
6868 | ||
bb229eec KH |
6869 | if (font->numeric[XLFD_PIXEL_SIZE] != 0 |
6870 | || font->numeric[XLFD_POINT_SIZE] != 0) | |
6871 | /* This is a scalable font but is requested for a specific size. | |
6872 | We should not change that size. */ | |
6873 | return build_font_name (font); | |
6874 | ||
82641697 GM |
6875 | /* If scalable font is for a specific resolution, compute |
6876 | the point size we must specify from the resolution of | |
6877 | the display and the specified resolution of the font. */ | |
6878 | if (font->numeric[XLFD_RESY] != 0) | |
6879 | { | |
6880 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
02a6375c | 6881 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 GM |
6882 | } |
6883 | else | |
6884 | { | |
6885 | pt = specified_pt; | |
02a6375c | 6886 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 | 6887 | } |
f70400f2 KH |
6888 | /* We may need a font of the different size. */ |
6889 | pixel_value *= font->rescale_ratio; | |
178c5d9c | 6890 | |
f70400f2 KH |
6891 | /* We should keep POINT_SIZE 0. Otherwise, X server can't open a |
6892 | font of the specified PIXEL_SIZE. */ | |
6893 | #if 0 | |
a7255152 SM |
6894 | { /* Set point size of the font. */ |
6895 | char point_size[20]; | |
6896 | sprintf (point_size, "%d", (int) pt); | |
6897 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6898 | font->numeric[XLFD_POINT_SIZE] = pt; | |
6899 | } | |
f70400f2 | 6900 | #endif |
178c5d9c | 6901 | |
82641697 GM |
6902 | /* Set pixel size. */ |
6903 | sprintf (pixel_size, "%d", pixel_value); | |
6904 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6905 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6906 | |
82641697 GM |
6907 | /* If font doesn't specify its resolution, use the |
6908 | resolution of the display. */ | |
6909 | if (font->numeric[XLFD_RESY] == 0) | |
6910 | { | |
6911 | char buffer[20]; | |
6912 | sprintf (buffer, "%d", (int) resy); | |
6913 | font->fields[XLFD_RESY] = buffer; | |
6914 | font->numeric[XLFD_RESY] = resy; | |
6915 | } | |
178c5d9c | 6916 | |
82641697 GM |
6917 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6918 | { | |
6919 | char buffer[20]; | |
6920 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6921 | sprintf (buffer, "%d", resx); | |
6922 | font->fields[XLFD_RESX] = buffer; | |
6923 | font->numeric[XLFD_RESX] = resx; | |
6924 | } | |
6925 | ||
6926 | return build_font_name (font); | |
6927 | } | |
6928 | ||
6929 | ||
6930 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6931 | can't run a Lisp function here since this function may be called | |
6932 | with input blocked. */ | |
6933 | ||
6934 | static int | |
702a1e8e | 6935 | may_use_scalable_font_p (font) |
53c208f6 | 6936 | const char *font; |
82641697 GM |
6937 | { |
6938 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6939 | return 1; | |
6940 | else if (CONSP (Vscalable_fonts_allowed)) | |
6941 | { | |
6942 | Lisp_Object tail, regexp; | |
178c5d9c | 6943 | |
82641697 GM |
6944 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6945 | { | |
6946 | regexp = XCAR (tail); | |
6947 | if (STRINGP (regexp) | |
702a1e8e | 6948 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6949 | return 1; |
6950 | } | |
6951 | } | |
178c5d9c | 6952 | |
82641697 GM |
6953 | return 0; |
6954 | } | |
6955 | ||
82641697 GM |
6956 | |
6957 | ||
2e6621ca GM |
6958 | /* Return the name of the best matching font for face attributes ATTRS |
6959 | in the array of font_name structures FONTS which contains NFONTS | |
6960 | elements. WIDTH_RATIO is a factor with which to multiply average | |
6961 | widths if ATTRS specifies such a width. | |
6962 | ||
6963 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
6964 | freed by this function. |
6965 | ||
6966 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6967 | indicate whether the resulting font should be drawn using overstrike | |
6968 | to simulate bold-face. */ | |
82641697 GM |
6969 | |
6970 | static char * | |
6ae2cd57 | 6971 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
6972 | struct frame *f; |
6973 | Lisp_Object *attrs; | |
6974 | struct font_name *fonts; | |
6975 | int nfonts; | |
2e6621ca | 6976 | int width_ratio; |
6ae2cd57 | 6977 | int *needs_overstrike; |
82641697 GM |
6978 | { |
6979 | char *font_name; | |
6980 | struct font_name *best; | |
334a2e2a | 6981 | int i, pt = 0; |
a08332c0 GM |
6982 | int specified[5]; |
6983 | int exact_p, avgwidth; | |
82641697 GM |
6984 | |
6985 | if (nfonts == 0) | |
6986 | return NULL; | |
6987 | ||
6988 | /* Make specified font attributes available in `specified', | |
6989 | indexed by sort order. */ | |
6990 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6991 | { | |
6992 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 6993 | |
82641697 GM |
6994 | if (xlfd_idx == XLFD_SWIDTH) |
6995 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
6996 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
6997 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6998 | else if (xlfd_idx == XLFD_WEIGHT) | |
6999 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7000 | else if (xlfd_idx == XLFD_SLANT) | |
7001 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7002 | else | |
7003 | abort (); | |
7004 | } | |
7005 | ||
a08332c0 GM |
7006 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
7007 | ? 0 | |
2e6621ca | 7008 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 7009 | |
82641697 | 7010 | exact_p = 0; |
178c5d9c | 7011 | |
6ae2cd57 MB |
7012 | if (needs_overstrike) |
7013 | *needs_overstrike = 0; | |
7014 | ||
82641697 GM |
7015 | /* Start with the first non-scalable font in the list. */ |
7016 | for (i = 0; i < nfonts; ++i) | |
7017 | if (!font_scalable_p (fonts + i)) | |
7018 | break; | |
7019 | ||
7020 | /* Find the best match among the non-scalable fonts. */ | |
7021 | if (i < nfonts) | |
7022 | { | |
7023 | best = fonts + i; | |
178c5d9c | 7024 | |
82641697 GM |
7025 | for (i = 1; i < nfonts; ++i) |
7026 | if (!font_scalable_p (fonts + i) | |
a08332c0 | 7027 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) |
82641697 GM |
7028 | { |
7029 | best = fonts + i; | |
7030 | ||
a08332c0 | 7031 | exact_p = exact_face_match_p (specified, best, avgwidth); |
82641697 GM |
7032 | if (exact_p) |
7033 | break; | |
7034 | } | |
82641697 GM |
7035 | } |
7036 | else | |
7037 | best = NULL; | |
7038 | ||
7039 | /* Unless we found an exact match among non-scalable fonts, see if | |
7040 | we can find a better match among scalable fonts. */ | |
7041 | if (!exact_p) | |
7042 | { | |
7043 | /* A scalable font is better if | |
7044 | ||
7045 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 7046 | |
82641697 GM |
7047 | 2. the best non-scalable font doesn't have the required |
7048 | point size, and the scalable fonts weight, slant, swidth | |
7049 | isn't worse. */ | |
7050 | ||
7051 | int non_scalable_has_exact_height_p; | |
7052 | ||
7053 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
7054 | non_scalable_has_exact_height_p = 1; | |
7055 | else | |
7056 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 7057 | |
82641697 GM |
7058 | for (i = 0; i < nfonts; ++i) |
7059 | if (font_scalable_p (fonts + i)) | |
7060 | { | |
7061 | if (best == NULL | |
a08332c0 | 7062 | || better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 7063 | || (!non_scalable_has_exact_height_p |
a08332c0 | 7064 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
6b61353c KH |
7065 | { |
7066 | non_scalable_has_exact_height_p = 1; | |
7067 | best = fonts + i; | |
7068 | } | |
82641697 | 7069 | } |
6ae2cd57 MB |
7070 | |
7071 | if (needs_overstrike) | |
7072 | { | |
7073 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
7074 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
7075 | ||
7076 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
7077 | { | |
7078 | /* We want a bold font, but didn't get one; try to use | |
7079 | overstriking instead to simulate bold-face. However, | |
7080 | don't overstrike an already-bold fontn unless the | |
7081 | desired weight grossly exceeds the available weight. */ | |
7082 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
7083 | *needs_overstrike = (got_weight - want_weight) > 2; | |
7084 | else | |
7085 | *needs_overstrike = 1; | |
7086 | } | |
7087 | } | |
82641697 GM |
7088 | } |
7089 | ||
7090 | if (font_scalable_p (best)) | |
7091 | font_name = build_scalable_font_name (f, best, pt); | |
7092 | else | |
7093 | font_name = build_font_name (best); | |
178c5d9c | 7094 | |
82641697 GM |
7095 | /* Free font_name structures. */ |
7096 | free_font_names (fonts, nfonts); | |
178c5d9c | 7097 | |
82641697 GM |
7098 | return font_name; |
7099 | } | |
7100 | ||
7101 | ||
3cf80731 SM |
7102 | /* Get a list of matching fonts on frame F, considering FAMILY |
7103 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
7104 | |
7105 | FAMILY is the font family whose alternatives are considered. | |
7106 | ||
7107 | REGISTRY, if a string, specifies a font registry and encoding to | |
7108 | match. A value of nil means include fonts of any registry and | |
7109 | encoding. | |
177c0ea7 | 7110 | |
4a529c42 GM |
7111 | Return in *FONTS a pointer to a vector of font_name structures for |
7112 | the fonts matched. Value is the number of fonts found. */ | |
7113 | ||
7114 | static int | |
7115 | try_alternative_families (f, family, registry, fonts) | |
7116 | struct frame *f; | |
7117 | Lisp_Object family, registry; | |
7118 | struct font_name **fonts; | |
7119 | { | |
7120 | Lisp_Object alter; | |
7121 | int nfonts = 0; | |
7122 | ||
3cf80731 SM |
7123 | nfonts = font_list (f, Qnil, family, registry, fonts); |
7124 | if (nfonts == 0) | |
4a529c42 | 7125 | { |
3cf80731 SM |
7126 | /* Try alternative font families. */ |
7127 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
7128 | if (CONSP (alter)) | |
7129 | { | |
7130 | for (alter = XCDR (alter); | |
7131 | CONSP (alter) && nfonts == 0; | |
7132 | alter = XCDR (alter)) | |
7133 | { | |
7134 | if (STRINGP (XCAR (alter))) | |
7135 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
7136 | } | |
7137 | } | |
177c0ea7 | 7138 | |
f9a45bb3 KH |
7139 | /* Try all scalable fonts before giving up. */ |
7140 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 7141 | { |
331379bf | 7142 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
7143 | specbind (Qscalable_fonts_allowed, Qt); |
7144 | nfonts = try_alternative_families (f, family, registry, fonts); | |
7145 | unbind_to (count, Qnil); | |
4a529c42 GM |
7146 | } |
7147 | } | |
4a529c42 GM |
7148 | return nfonts; |
7149 | } | |
7150 | ||
7151 | ||
702a1e8e GM |
7152 | /* Get a list of matching fonts on frame F. |
7153 | ||
af53b43c KH |
7154 | PATTERN, if a string, specifies a font name pattern to match while |
7155 | ignoring FAMILY and REGISTRY. | |
702a1e8e | 7156 | |
af53b43c | 7157 | FAMILY, if a list, specifies a list of font families to try. |
177c0ea7 | 7158 | |
af53b43c KH |
7159 | REGISTRY, if a list, specifies a list of font registries and |
7160 | encodinging to try. | |
54580ab2 | 7161 | |
702a1e8e GM |
7162 | Return in *FONTS a pointer to a vector of font_name structures for |
7163 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
7164 | |
7165 | static int | |
af53b43c | 7166 | try_font_list (f, pattern, family, registry, fonts) |
82641697 | 7167 | struct frame *f; |
a55a1dc6 | 7168 | Lisp_Object pattern, family, registry; |
82641697 GM |
7169 | struct font_name **fonts; |
7170 | { | |
4a529c42 | 7171 | int nfonts = 0; |
3cf80731 | 7172 | |
af53b43c | 7173 | if (STRINGP (pattern)) |
bb229eec KH |
7174 | { |
7175 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7176 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
7177 | { | |
7178 | int count = SPECPDL_INDEX (); | |
7179 | specbind (Qscalable_fonts_allowed, Qt); | |
7180 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7181 | unbind_to (count, Qnil); | |
7182 | } | |
7183 | } | |
af53b43c | 7184 | else |
82641697 | 7185 | { |
af53b43c | 7186 | Lisp_Object tail; |
f00691a3 | 7187 | |
af53b43c KH |
7188 | if (NILP (family)) |
7189 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
3cf80731 | 7190 | else |
af53b43c KH |
7191 | for (tail = family; ! nfonts && CONSP (tail); tail = XCDR (tail)) |
7192 | nfonts = try_alternative_families (f, XCAR (tail), registry, fonts); | |
54580ab2 | 7193 | |
af53b43c KH |
7194 | /* Try font family of the default face or "fixed". */ |
7195 | if (nfonts == 0 && !NILP (family)) | |
7196 | { | |
7197 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7198 | if (default_face) | |
7199 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
7200 | else | |
7201 | family = build_string ("fixed"); | |
8f924df7 | 7202 | nfonts = try_alternative_families (f, family, registry, fonts); |
af53b43c | 7203 | } |
178c5d9c | 7204 | |
af53b43c KH |
7205 | /* Try any family with the given registry. */ |
7206 | if (nfonts == 0 && !NILP (family)) | |
8f924df7 | 7207 | nfonts = try_alternative_families (f, Qnil, registry, fonts); |
82641697 | 7208 | } |
177c0ea7 | 7209 | |
82641697 GM |
7210 | return nfonts; |
7211 | } | |
7212 | ||
82641697 | 7213 | |
39506348 KH |
7214 | /* Return the fontset id of the base fontset name or alias name given |
7215 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
7216 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
7217 | |
7218 | static int | |
39506348 | 7219 | face_fontset (attrs) |
82641697 GM |
7220 | Lisp_Object *attrs; |
7221 | { | |
39506348 | 7222 | Lisp_Object name; |
178c5d9c | 7223 | |
763bc839 | 7224 | name = attrs[LFACE_FONTSET_INDEX]; |
39506348 KH |
7225 | if (!STRINGP (name)) |
7226 | return -1; | |
7227 | return fs_query_fontset (name, 0); | |
82641697 GM |
7228 | } |
7229 | ||
7230 | ||
af53b43c | 7231 | /* Choose a name of font to use on frame F to display characters with |
39506348 | 7232 | Lisp face attributes specified by ATTRS. The font name is |
af53b43c KH |
7233 | determined by the font-related attributes in ATTRS and FONT-SPEC |
7234 | (if specified). | |
6ae2cd57 | 7235 | |
af53b43c KH |
7236 | When we are choosing a font for ASCII characters, FONT-SPEC is |
7237 | always nil. Otherwise FONT-SPEC is a list | |
7238 | [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] | |
7239 | or a string specifying a font name pattern. | |
82641697 | 7240 | |
8f924df7 KH |
7241 | If NEEDS_OVERSTRIKE is not NULL, a boolean is returned in it to |
7242 | indicate whether the resulting font should be drawn using | |
7243 | overstrike to simulate bold-face. | |
7244 | ||
af53b43c KH |
7245 | Value is the font name which is allocated from the heap and must be |
7246 | freed by the caller. */ | |
7247 | ||
7248 | char * | |
8f924df7 | 7249 | choose_face_font (f, attrs, font_spec, needs_overstrike) |
82641697 GM |
7250 | struct frame *f; |
7251 | Lisp_Object *attrs; | |
af53b43c | 7252 | Lisp_Object font_spec; |
6ae2cd57 | 7253 | int *needs_overstrike; |
82641697 | 7254 | { |
af53b43c | 7255 | Lisp_Object pattern, family, adstyle, registry; |
82641697 | 7256 | char *font_name = NULL; |
82641697 | 7257 | struct font_name *fonts; |
af53b43c | 7258 | int nfonts; |
178c5d9c | 7259 | |
774666fb MB |
7260 | if (needs_overstrike) |
7261 | *needs_overstrike = 0; | |
7262 | ||
af53b43c KH |
7263 | /* If we are choosing an ASCII font and a font name is explicitly |
7264 | specified in ATTRS, return it. */ | |
af53b43c | 7265 | if (NILP (font_spec) && STRINGP (attrs[LFACE_FONT_INDEX])) |
8f924df7 | 7266 | return xstrdup (SDATA (attrs[LFACE_FONT_INDEX])); |
81b39386 | 7267 | |
af53b43c | 7268 | if (NILP (attrs[LFACE_FAMILY_INDEX])) |
81b39386 | 7269 | family = Qnil; |
af53b43c KH |
7270 | else |
7271 | family = Fcons (attrs[LFACE_FAMILY_INDEX], Qnil); | |
7272 | ||
154c2d39 KH |
7273 | /* Decide FAMILY, ADSTYLE, and REGISTRY from FONT_SPEC. But, |
7274 | ADSTYLE is not used in the font selector for the moment. */ | |
af53b43c | 7275 | if (VECTORP (font_spec)) |
39506348 | 7276 | { |
af53b43c KH |
7277 | pattern = Qnil; |
7278 | if (STRINGP (AREF (font_spec, FONT_SPEC_FAMILY_INDEX))) | |
7279 | family = Fcons (AREF (font_spec, FONT_SPEC_FAMILY_INDEX), family); | |
7280 | adstyle = AREF (font_spec, FONT_SPEC_ADSTYLE_INDEX); | |
154c2d39 | 7281 | registry = Fcons (AREF (font_spec, FONT_SPEC_REGISTRY_INDEX), Qnil); |
af53b43c KH |
7282 | } |
7283 | else if (STRINGP (font_spec)) | |
7284 | { | |
7285 | pattern = font_spec; | |
7286 | family = Qnil; | |
7287 | adstyle = Qnil; | |
7288 | registry = Qnil; | |
7289 | } | |
7290 | else | |
7291 | { | |
154c2d39 KH |
7292 | /* We are choosing an ASCII font. By default, use the registry |
7293 | name "iso8859-1". But, if the registry name of the ASCII | |
7294 | font specified in the fontset of ATTRS is not "iso8859-1" | |
7295 | (e.g "iso10646-1"), use also that name with higher | |
7296 | priority. */ | |
7297 | int fontset = face_fontset (attrs); | |
7298 | Lisp_Object ascii; | |
7299 | int len; | |
7300 | struct font_name font; | |
7301 | ||
af53b43c KH |
7302 | pattern = Qnil; |
7303 | adstyle = Qnil; | |
154c2d39 KH |
7304 | registry = Fcons (build_string ("iso8859-1"), Qnil); |
7305 | ||
7306 | ascii = fontset_ascii (fontset); | |
8f924df7 | 7307 | len = SBYTES (ascii); |
154c2d39 | 7308 | if (len < 9 |
8f924df7 | 7309 | || strcmp (SDATA (ascii) + len - 9, "iso8859-1")) |
154c2d39 KH |
7310 | { |
7311 | font.name = LSTRDUPA (ascii); | |
7312 | /* Check if the name is in XLFD. */ | |
7313 | if (split_font_name (f, &font, 0)) | |
7314 | { | |
7315 | font.fields[XLFD_ENCODING][-1] = '-'; | |
7316 | registry = Fcons (build_string (font.fields[XLFD_REGISTRY]), | |
7317 | registry); | |
7318 | } | |
7319 | } | |
39506348 | 7320 | } |
82641697 | 7321 | |
178c5d9c | 7322 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 7323 | best match for the specified face attributes from it. */ |
af53b43c | 7324 | nfonts = try_font_list (f, pattern, family, registry, &fonts); |
8f924df7 | 7325 | font_name = best_matching_font (f, attrs, fonts, nfonts, NILP (font_spec), |
6ae2cd57 | 7326 | needs_overstrike); |
82641697 GM |
7327 | return font_name; |
7328 | } | |
7329 | ||
c3cee013 | 7330 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7331 | |
7332 | ||
7333 | \f | |
7334 | /*********************************************************************** | |
7335 | Face Realization | |
7336 | ***********************************************************************/ | |
7337 | ||
7338 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
7339 | of F don't contain enough information needed to realize the default | |
7340 | face. */ | |
7341 | ||
7342 | static int | |
7343 | realize_basic_faces (f) | |
7344 | struct frame *f; | |
7345 | { | |
7346 | int success_p = 0; | |
331379bf | 7347 | int count = SPECPDL_INDEX (); |
17e8204b | 7348 | |
04386463 GM |
7349 | /* Block input here so that we won't be surprised by an X expose |
7350 | event, for instance, without having the faces set up. */ | |
17e8204b | 7351 | BLOCK_INPUT; |
eeffb293 | 7352 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 7353 | |
82641697 GM |
7354 | if (realize_default_face (f)) |
7355 | { | |
92610620 | 7356 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 7357 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 7358 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 7359 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 7360 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
7361 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
7362 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
7363 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
7364 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 7365 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 7366 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 7367 | |
b5de343d | 7368 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 7369 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 7370 | { |
ceeda019 | 7371 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 7372 | #ifdef USE_X_TOOLKIT |
bce72079 | 7373 | x_update_menu_appearance (f); |
a03ad468 | 7374 | #endif |
563f68f1 | 7375 | } |
177c0ea7 | 7376 | |
82641697 GM |
7377 | success_p = 1; |
7378 | } | |
7379 | ||
eeffb293 | 7380 | unbind_to (count, Qnil); |
17e8204b | 7381 | UNBLOCK_INPUT; |
82641697 GM |
7382 | return success_p; |
7383 | } | |
7384 | ||
7385 | ||
7386 | /* Realize the default face on frame F. If the face is not fully | |
7387 | specified, make it fully-specified. Attributes of the default face | |
7388 | that are not explicitly specified are taken from frame parameters. */ | |
7389 | ||
7390 | static int | |
7391 | realize_default_face (f) | |
7392 | struct frame *f; | |
7393 | { | |
7394 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7395 | Lisp_Object lface; | |
7396 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
7397 | Lisp_Object frame_font; |
7398 | struct face *face; | |
82641697 GM |
7399 | |
7400 | /* If the `default' face is not yet known, create it. */ | |
7401 | lface = lface_from_face_name (f, Qdefault, 0); | |
7402 | if (NILP (lface)) | |
07446869 GM |
7403 | { |
7404 | Lisp_Object frame; | |
7405 | XSETFRAME (frame, f); | |
7406 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
7407 | } | |
7408 | ||
82641697 | 7409 | |
c3cee013 JR |
7410 | #ifdef HAVE_WINDOW_SYSTEM |
7411 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
7412 | { |
7413 | /* Set frame_font to the value of the `font' frame parameter. */ | |
7414 | frame_font = Fassq (Qfont, f->param_alist); | |
7415 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
7416 | frame_font = XCDR (frame_font); | |
a5f696ac JD |
7417 | set_lface_from_font_name (f, lface, frame_font, |
7418 | f->default_face_done_p, 1); | |
7419 | f->default_face_done_p = 1; | |
82641697 | 7420 | } |
c3cee013 | 7421 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 7422 | |
44747bd0 | 7423 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
7424 | { |
7425 | LFACE_FAMILY (lface) = build_string ("default"); | |
7426 | LFACE_SWIDTH (lface) = Qnormal; | |
7427 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
7428 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
7429 | LFACE_WEIGHT (lface) = Qnormal; | |
7430 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
7431 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 7432 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 7433 | } |
178c5d9c | 7434 | |
82641697 GM |
7435 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
7436 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 7437 | |
82641697 GM |
7438 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
7439 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 7440 | |
82641697 GM |
7441 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
7442 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 7443 | |
82641697 GM |
7444 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
7445 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 7446 | |
82641697 GM |
7447 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
7448 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 7449 | |
82641697 GM |
7450 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
7451 | { | |
7452 | /* This function is called so early that colors are not yet | |
7453 | set in the frame parameter list. */ | |
7454 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 7455 | |
82641697 GM |
7456 | if (CONSP (color) && STRINGP (XCDR (color))) |
7457 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 7458 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7459 | return 0; |
e689ec06 | 7460 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7461 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 7462 | else |
82641697 GM |
7463 | abort (); |
7464 | } | |
178c5d9c | 7465 | |
82641697 GM |
7466 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
7467 | { | |
7468 | /* This function is called so early that colors are not yet | |
7469 | set in the frame parameter list. */ | |
7470 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
7471 | if (CONSP (color) && STRINGP (XCDR (color))) | |
7472 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 7473 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7474 | return 0; |
e689ec06 | 7475 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7476 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 7477 | else |
82641697 GM |
7478 | abort (); |
7479 | } | |
178c5d9c | 7480 | |
82641697 GM |
7481 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
7482 | LFACE_STIPPLE (lface) = Qnil; | |
7483 | ||
7484 | /* Realize the face; it must be fully-specified now. */ | |
7485 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
7486 | check_lface (lface); | |
7487 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
af53b43c | 7488 | face = realize_face (c, attrs, DEFAULT_FACE_ID); |
4da9c136 KH |
7489 | |
7490 | #ifdef HAVE_WINDOW_SYSTEM | |
7491 | #ifdef HAVE_X_WINDOWS | |
7492 | if (face->font != FRAME_FONT (f)) | |
7493 | /* As the font specified for the frame was not acceptable as a | |
7494 | font for the default face (perhaps because auto-scaled fonts | |
7495 | are rejected), we must adjust the frame font. */ | |
7496 | x_set_font (f, build_string (face->font_name), Qnil); | |
7497 | #endif /* HAVE_X_WINDOWS */ | |
7498 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7499 | return 1; |
7500 | } | |
7501 | ||
7502 | ||
7503 | /* Realize basic faces other than the default face in face cache C. | |
7504 | SYMBOL is the face name, ID is the face id the realized face must | |
7505 | have. The default face must have been realized already. */ | |
7506 | ||
7507 | static void | |
7508 | realize_named_face (f, symbol, id) | |
7509 | struct frame *f; | |
7510 | Lisp_Object symbol; | |
7511 | int id; | |
7512 | { | |
7513 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7514 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
7515 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7516 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
7517 | struct face *new_face; | |
7518 | ||
7519 | /* The default face must exist and be fully specified. */ | |
7520 | get_lface_attributes (f, Qdefault, attrs, 1); | |
7521 | check_lface_attrs (attrs); | |
7522 | xassert (lface_fully_specified_p (attrs)); | |
7523 | ||
7524 | /* If SYMBOL isn't know as a face, create it. */ | |
7525 | if (NILP (lface)) | |
7526 | { | |
7527 | Lisp_Object frame; | |
7528 | XSETFRAME (frame, f); | |
7529 | lface = Finternal_make_lisp_face (symbol, frame); | |
7530 | } | |
7531 | ||
7532 | /* Merge SYMBOL's face with the default face. */ | |
7533 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
a0a23346 | 7534 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
82641697 GM |
7535 | |
7536 | /* Realize the face. */ | |
af53b43c | 7537 | new_face = realize_face (c, attrs, id); |
82641697 GM |
7538 | } |
7539 | ||
7540 | ||
7541 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7542 | cache CACHE for ASCII characters. If FORMER_FACE_ID is |
7543 | non-negative, it is an ID of face to remove before caching the new | |
7544 | face. Value is a pointer to the newly created realized face. */ | |
82641697 GM |
7545 | |
7546 | static struct face * | |
af53b43c | 7547 | realize_face (cache, attrs, former_face_id) |
39506348 | 7548 | struct face_cache *cache; |
82641697 | 7549 | Lisp_Object *attrs; |
39506348 | 7550 | int former_face_id; |
82641697 GM |
7551 | { |
7552 | struct face *face; | |
178c5d9c | 7553 | |
82641697 | 7554 | /* LFACE must be fully specified. */ |
39506348 | 7555 | xassert (cache != NULL); |
82641697 GM |
7556 | check_lface_attrs (attrs); |
7557 | ||
39506348 KH |
7558 | if (former_face_id >= 0 && cache->used > former_face_id) |
7559 | { | |
7560 | /* Remove the former face. */ | |
7561 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
7562 | uncache_face (cache, former_face); | |
7563 | free_realized_face (cache->f, former_face); | |
7564 | } | |
7565 | ||
7566 | if (FRAME_WINDOW_P (cache->f)) | |
af53b43c | 7567 | face = realize_x_face (cache, attrs); |
e689ec06 | 7568 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
af53b43c | 7569 | face = realize_tty_face (cache, attrs); |
82641697 GM |
7570 | else |
7571 | abort (); | |
7572 | ||
39506348 KH |
7573 | /* Insert the new face. */ |
7574 | cache_face (cache, face, lface_hash (attrs)); | |
af53b43c KH |
7575 | return face; |
7576 | } | |
7577 | ||
7578 | ||
8c6204de | 7579 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
7580 | /* Realize the fully-specified face that has the same attributes as |
7581 | BASE_FACE except for the font on frame F. If FONT_ID is not | |
7582 | negative, it is an ID number of an already opened font that should | |
7583 | be used by the face. If FONT_ID is negative, the face has no font, | |
7584 | i.e., characters are displayed by empty boxes. */ | |
7585 | ||
7586 | static struct face * | |
7587 | realize_non_ascii_face (f, font_id, base_face) | |
7588 | struct frame *f; | |
7589 | int font_id; | |
7590 | struct face *base_face; | |
7591 | { | |
7592 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
8f924df7 | 7593 | struct face *face; |
af53b43c KH |
7594 | struct font_info *font_info; |
7595 | ||
7596 | face = (struct face *) xmalloc (sizeof *face); | |
7597 | *face = *base_face; | |
7598 | face->gc = 0; | |
7599 | ||
7600 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
7601 | face->colors_copied_bitwise_p = 1; | |
7602 | ||
7603 | face->font_info_id = font_id; | |
7604 | if (font_id >= 0) | |
7605 | { | |
7606 | font_info = FONT_INFO_FROM_ID (f, font_id); | |
7607 | face->font = font_info->font; | |
7608 | face->font_name = font_info->full_name; | |
7609 | } | |
7610 | else | |
7611 | { | |
7612 | face->font = NULL; | |
7613 | face->font_name = NULL; | |
7614 | } | |
7615 | ||
7616 | face->gc = 0; | |
7617 | ||
7618 | cache_face (cache, face, face->hash); | |
7619 | ||
82641697 GM |
7620 | return face; |
7621 | } | |
8c6204de | 7622 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7623 | |
7624 | ||
7625 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7626 | cache CACHE for ASCII characters. Do it for X frame CACHE->f. If |
7627 | the new face doesn't share font with the default face, a fontname | |
7628 | is allocated from the heap and set in `font_name' of the new face, | |
7629 | but it is not yet loaded here. Value is a pointer to the newly | |
7630 | created realized face. */ | |
82641697 GM |
7631 | |
7632 | static struct face * | |
af53b43c | 7633 | realize_x_face (cache, attrs) |
39506348 | 7634 | struct face_cache *cache; |
82641697 | 7635 | Lisp_Object *attrs; |
82641697 | 7636 | { |
7d603e3f | 7637 | struct face *face = NULL; |
c3cee013 | 7638 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 7639 | struct face *default_face; |
78d2079c | 7640 | struct frame *f; |
82641697 | 7641 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 7642 | |
39506348 | 7643 | xassert (FRAME_WINDOW_P (cache->f)); |
82641697 GM |
7644 | |
7645 | /* Allocate a new realized face. */ | |
39506348 | 7646 | face = make_realized_face (attrs); |
af53b43c | 7647 | face->ascii_face = face; |
39506348 KH |
7648 | |
7649 | f = cache->f; | |
7650 | ||
82641697 GM |
7651 | /* Determine the font to use. Most of the time, the font will be |
7652 | the same as the font of the default face, so try that first. */ | |
7653 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7654 | if (default_face | |
82641697 GM |
7655 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
7656 | { | |
7657 | face->font = default_face->font; | |
82641697 | 7658 | face->font_info_id = default_face->font_info_id; |
426b2119 KH |
7659 | #ifdef USE_FONT_BACKEND |
7660 | face->font_info = default_face->font_info; | |
7661 | #endif /* USE_FONT_BACKEND */ | |
82641697 | 7662 | face->font_name = default_face->font_name; |
39506348 | 7663 | face->fontset |
af53b43c | 7664 | = make_fontset_for_ascii_face (f, default_face->fontset, face); |
82641697 GM |
7665 | } |
7666 | else | |
7667 | { | |
39506348 | 7668 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
7669 | the base of a new realized fontset. Otherwise, use the same |
7670 | base fontset as of the default face. The base determines | |
7671 | registry and encoding of a font. It may also determine | |
7672 | foundry and family. The other fields of font name pattern | |
7673 | are constructed from ATTRS. */ | |
7674 | int fontset = face_fontset (attrs); | |
7675 | ||
af53b43c KH |
7676 | /* If we are realizing the default face, ATTRS should specify a |
7677 | fontset. In other words, if FONTSET is -1, we are not | |
7678 | realizing the default face, thus the default face should have | |
7679 | already been realized. */ | |
7680 | if (fontset == -1) | |
fc8c4797 | 7681 | fontset = default_face->fontset; |
af53b43c KH |
7682 | if (fontset == -1) |
7683 | abort (); | |
426b2119 KH |
7684 | #ifdef USE_FONT_BACKEND |
7685 | if (enable_font_backend) | |
7686 | font_load_for_face (f, face); | |
7687 | else | |
7688 | #endif /* USE_FONT_BACKEND */ | |
8f924df7 | 7689 | load_face_font (f, face); |
426b2119 KH |
7690 | if (face->font) |
7691 | face->fontset = make_fontset_for_ascii_face (f, fontset, face); | |
7692 | else | |
7693 | face->fontset = -1; | |
82641697 GM |
7694 | } |
7695 | ||
7696 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 7697 | |
82641697 | 7698 | load_face_colors (f, face, attrs); |
660ed669 | 7699 | |
82641697 GM |
7700 | /* Set up box. */ |
7701 | box = attrs[LFACE_BOX_INDEX]; | |
7702 | if (STRINGP (box)) | |
cb637678 | 7703 | { |
82641697 GM |
7704 | /* A simple box of line width 1 drawn in color given by |
7705 | the string. */ | |
7706 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
7707 | LFACE_BOX_INDEX); | |
7708 | face->box = FACE_SIMPLE_BOX; | |
7709 | face->box_line_width = 1; | |
cb637678 | 7710 | } |
82641697 | 7711 | else if (INTEGERP (box)) |
42120bc7 | 7712 | { |
82641697 GM |
7713 | /* Simple box of specified line width in foreground color of the |
7714 | face. */ | |
89624b8b | 7715 | xassert (XINT (box) != 0); |
82641697 | 7716 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 7717 | face->box_line_width = XINT (box); |
82641697 GM |
7718 | face->box_color = face->foreground; |
7719 | face->box_color_defaulted_p = 1; | |
7720 | } | |
7721 | else if (CONSP (box)) | |
7722 | { | |
7723 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
7724 | being one of `raised' or `sunken'. */ | |
7725 | face->box = FACE_SIMPLE_BOX; | |
7726 | face->box_color = face->foreground; | |
7727 | face->box_color_defaulted_p = 1; | |
7728 | face->box_line_width = 1; | |
7729 | ||
7730 | while (CONSP (box)) | |
42120bc7 | 7731 | { |
82641697 GM |
7732 | Lisp_Object keyword, value; |
7733 | ||
7734 | keyword = XCAR (box); | |
7735 | box = XCDR (box); | |
7736 | ||
7737 | if (!CONSP (box)) | |
7738 | break; | |
7739 | value = XCAR (box); | |
7740 | box = XCDR (box); | |
7741 | ||
7742 | if (EQ (keyword, QCline_width)) | |
7743 | { | |
89624b8b KH |
7744 | if (INTEGERP (value) && XINT (value) != 0) |
7745 | face->box_line_width = XINT (value); | |
82641697 GM |
7746 | } |
7747 | else if (EQ (keyword, QCcolor)) | |
7748 | { | |
7749 | if (STRINGP (value)) | |
7750 | { | |
7751 | face->box_color = load_color (f, face, value, | |
7752 | LFACE_BOX_INDEX); | |
7753 | face->use_box_color_for_shadows_p = 1; | |
7754 | } | |
7755 | } | |
7756 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 7757 | { |
82641697 GM |
7758 | if (EQ (value, Qreleased_button)) |
7759 | face->box = FACE_RAISED_BOX; | |
7760 | else if (EQ (value, Qpressed_button)) | |
7761 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 7762 | } |
42120bc7 RS |
7763 | } |
7764 | } | |
195f798e | 7765 | |
82641697 | 7766 | /* Text underline, overline, strike-through. */ |
178c5d9c | 7767 | |
82641697 | 7768 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 7769 | { |
82641697 GM |
7770 | /* Use default color (same as foreground color). */ |
7771 | face->underline_p = 1; | |
7772 | face->underline_defaulted_p = 1; | |
7773 | face->underline_color = 0; | |
7774 | } | |
7775 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 7776 | { |
82641697 GM |
7777 | /* Use specified color. */ |
7778 | face->underline_p = 1; | |
7779 | face->underline_defaulted_p = 0; | |
7780 | face->underline_color | |
7781 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
7782 | LFACE_UNDERLINE_INDEX); | |
195f798e | 7783 | } |
82641697 | 7784 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 7785 | { |
82641697 GM |
7786 | face->underline_p = 0; |
7787 | face->underline_defaulted_p = 0; | |
7788 | face->underline_color = 0; | |
7b00de84 JB |
7789 | } |
7790 | ||
82641697 GM |
7791 | overline = attrs[LFACE_OVERLINE_INDEX]; |
7792 | if (STRINGP (overline)) | |
cb637678 | 7793 | { |
82641697 GM |
7794 | face->overline_color |
7795 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
7796 | LFACE_OVERLINE_INDEX); | |
7797 | face->overline_p = 1; | |
cb637678 | 7798 | } |
82641697 | 7799 | else if (EQ (overline, Qt)) |
cb637678 | 7800 | { |
82641697 GM |
7801 | face->overline_color = face->foreground; |
7802 | face->overline_color_defaulted_p = 1; | |
7803 | face->overline_p = 1; | |
cb637678 JB |
7804 | } |
7805 | ||
82641697 GM |
7806 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
7807 | if (STRINGP (strike_through)) | |
7808 | { | |
7809 | face->strike_through_color | |
7810 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
7811 | LFACE_STRIKE_THROUGH_INDEX); | |
7812 | face->strike_through_p = 1; | |
7813 | } | |
7814 | else if (EQ (strike_through, Qt)) | |
7815 | { | |
7816 | face->strike_through_color = face->foreground; | |
7817 | face->strike_through_color_defaulted_p = 1; | |
7818 | face->strike_through_p = 1; | |
7819 | } | |
867dd159 | 7820 | |
82641697 GM |
7821 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
7822 | if (!NILP (stipple)) | |
7823 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
c3cee013 | 7824 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 | 7825 | |
82641697 | 7826 | return face; |
660ed669 JB |
7827 | } |
7828 | ||
729425b1 | 7829 | |
ae4b4ba5 GM |
7830 | /* Map a specified color of face FACE on frame F to a tty color index. |
7831 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
7832 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
7833 | default foreground/background colors. */ | |
7834 | ||
7835 | static void | |
7836 | map_tty_color (f, face, idx, defaulted) | |
7837 | struct frame *f; | |
7838 | struct face *face; | |
7839 | enum lface_attribute_index idx; | |
7840 | int *defaulted; | |
7841 | { | |
7842 | Lisp_Object frame, color, def; | |
7843 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
7844 | unsigned long default_pixel, default_other_pixel, pixel; | |
7845 | ||
7846 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
7847 | ||
7848 | if (foreground_p) | |
7849 | { | |
7850 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7851 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7852 | } | |
7853 | else | |
7854 | { | |
7855 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7856 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7857 | } | |
177c0ea7 | 7858 | |
ae4b4ba5 GM |
7859 | XSETFRAME (frame, f); |
7860 | color = face->lface[idx]; | |
177c0ea7 | 7861 | |
ae4b4ba5 | 7862 | if (STRINGP (color) |
d5db4077 | 7863 | && SCHARS (color) |
ae4b4ba5 GM |
7864 | && CONSP (Vtty_defined_color_alist) |
7865 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
7866 | CONSP (def))) | |
7867 | { | |
7868 | /* Associations in tty-defined-color-alist are of the form | |
7869 | (NAME INDEX R G B). We need the INDEX part. */ | |
7870 | pixel = XINT (XCAR (XCDR (def))); | |
7871 | } | |
7872 | ||
7873 | if (pixel == default_pixel && STRINGP (color)) | |
7874 | { | |
7875 | pixel = load_color (f, face, color, idx); | |
7876 | ||
7877 | #if defined (MSDOS) || defined (WINDOWSNT) | |
7878 | /* If the foreground of the default face is the default color, | |
7879 | use the foreground color defined by the frame. */ | |
7880 | #ifdef MSDOS | |
7881 | if (FRAME_MSDOS_P (f)) | |
7882 | { | |
7883 | #endif /* MSDOS */ | |
7884 | if (pixel == default_pixel | |
7885 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
7886 | { | |
7887 | if (foreground_p) | |
7888 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7889 | else | |
7890 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7891 | face->lface[idx] = tty_color_name (f, pixel); | |
7892 | *defaulted = 1; | |
7893 | } | |
7894 | else if (pixel == default_other_pixel) | |
7895 | { | |
7896 | if (foreground_p) | |
7897 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7898 | else | |
7899 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7900 | face->lface[idx] = tty_color_name (f, pixel); | |
7901 | *defaulted = 1; | |
7902 | } | |
7903 | #ifdef MSDOS | |
7904 | } | |
7905 | #endif | |
7906 | #endif /* MSDOS or WINDOWSNT */ | |
7907 | } | |
7908 | ||
7909 | if (foreground_p) | |
7910 | face->foreground = pixel; | |
7911 | else | |
7912 | face->background = pixel; | |
7913 | } | |
7914 | ||
7915 | ||
82641697 | 7916 | /* Realize the fully-specified face with attributes ATTRS in face |
af53b43c KH |
7917 | cache CACHE for ASCII characters. Do it for TTY frame CACHE->f. |
7918 | Value is a pointer to the newly created realized face. */ | |
a8517066 | 7919 | |
82641697 | 7920 | static struct face * |
af53b43c | 7921 | realize_tty_face (cache, attrs) |
39506348 | 7922 | struct face_cache *cache; |
82641697 | 7923 | Lisp_Object *attrs; |
82641697 GM |
7924 | { |
7925 | struct face *face; | |
7926 | int weight, slant; | |
2d764c78 | 7927 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7928 | struct frame *f = cache->f; |
729425b1 | 7929 | |
82641697 | 7930 | /* Frame must be a termcap frame. */ |
e689ec06 | 7931 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7932 | |
82641697 | 7933 | /* Allocate a new realized face. */ |
39506348 | 7934 | face = make_realized_face (attrs); |
e689ec06 | 7935 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 7936 | |
178c5d9c | 7937 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
7938 | dimmed text because we want italic text to appear differently |
7939 | and because dimmed text is probably used infrequently. */ | |
7940 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7941 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7942 | ||
7943 | if (weight > XLFD_WEIGHT_MEDIUM) | |
7944 | face->tty_bold_p = 1; | |
7945 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
7946 | face->tty_dim_p = 1; | |
7947 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
7948 | face->tty_underline_p = 1; | |
7949 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
7950 | face->tty_reverse_p = 1; | |
7951 | ||
7952 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
7953 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
7954 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 7955 | |
2d764c78 EZ |
7956 | /* Swap colors if face is inverse-video. If the colors are taken |
7957 | from the frame colors, they are already inverted, since the | |
7958 | frame-creation function calls x-handle-reverse-video. */ | |
7959 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
7960 | { |
7961 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
7962 | face->foreground = face->background; |
7963 | face->background = tem; | |
7964 | } | |
44747bd0 | 7965 | |
a4a76b61 GM |
7966 | if (tty_suppress_bold_inverse_default_colors_p |
7967 | && face->tty_bold_p | |
7968 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
7969 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
7970 | face->tty_bold_p = 0; | |
7971 | ||
82641697 | 7972 | return face; |
729425b1 | 7973 | } |
867dd159 | 7974 | |
82641697 | 7975 | |
a4a76b61 GM |
7976 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
7977 | Ftty_suppress_bold_inverse_default_colors, | |
7978 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 7979 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
7980 | SUPPRESS non-nil means suppress it. |
7981 | This affects bold faces on TTYs whose foreground is the default background | |
7982 | color of the display and whose background is the default foreground color. | |
7983 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
7984 | is non-nil. */) |
7985 | (suppress) | |
a4a76b61 GM |
7986 | Lisp_Object suppress; |
7987 | { | |
7988 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
7989 | ++face_change_count; | |
7990 | return suppress; | |
7991 | } | |
7992 | ||
7993 | ||
82641697 GM |
7994 | \f |
7995 | /*********************************************************************** | |
7996 | Computing Faces | |
7997 | ***********************************************************************/ | |
7998 | ||
7999 | /* Return the ID of the face to use to display character CH with face | |
8000 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
8001 | |
8002 | int | |
82641697 | 8003 | compute_char_face (f, ch, prop) |
2e16580f | 8004 | struct frame *f; |
82641697 GM |
8005 | int ch; |
8006 | Lisp_Object prop; | |
2e16580f | 8007 | { |
82641697 | 8008 | int face_id; |
39506348 KH |
8009 | |
8010 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 8011 | ch = 0; |
178c5d9c | 8012 | |
82641697 | 8013 | if (NILP (prop)) |
39506348 KH |
8014 | { |
8015 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
779c6fb6 | 8016 | face_id = FACE_FOR_CHAR (f, face, ch, -1, Qnil); |
39506348 | 8017 | } |
82641697 | 8018 | else |
2e16580f | 8019 | { |
82641697 GM |
8020 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
8021 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
8022 | bcopy (default_face->lface, attrs, sizeof attrs); | |
a0a23346 | 8023 | merge_face_ref (f, prop, attrs, 1, 0); |
af53b43c | 8024 | face_id = lookup_face (f, attrs); |
2e16580f RS |
8025 | } |
8026 | ||
82641697 | 8027 | return face_id; |
2e16580f | 8028 | } |
bc0db68d | 8029 | |
82641697 GM |
8030 | /* Return the face ID associated with buffer position POS for |
8031 | displaying ASCII characters. Return in *ENDPTR the position at | |
8032 | which a different face is needed, as far as text properties and | |
8033 | overlays are concerned. W is a window displaying current_buffer. | |
8034 | ||
8035 | REGION_BEG, REGION_END delimit the region, so it can be | |
8036 | highlighted. | |
6f134486 | 8037 | |
82641697 GM |
8038 | LIMIT is a position not to scan beyond. That is to limit the time |
8039 | this function can take. | |
8040 | ||
8041 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
8042 | ||
39506348 | 8043 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 8044 | |
cb637678 | 8045 | int |
82641697 GM |
8046 | face_at_buffer_position (w, pos, region_beg, region_end, |
8047 | endptr, limit, mouse) | |
f211082d | 8048 | struct window *w; |
7b7739b1 | 8049 | int pos; |
bc0db68d | 8050 | int region_beg, region_end; |
7b7739b1 | 8051 | int *endptr; |
b349f4fb | 8052 | int limit; |
6f134486 | 8053 | int mouse; |
7b7739b1 | 8054 | { |
82641697 GM |
8055 | struct frame *f = XFRAME (w->frame); |
8056 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 8057 | Lisp_Object prop, position; |
82641697 | 8058 | int i, noverlays; |
7b7739b1 | 8059 | Lisp_Object *overlay_vec; |
f211082d | 8060 | Lisp_Object frame; |
f6b98e0b | 8061 | int endpos; |
82641697 GM |
8062 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
8063 | Lisp_Object limit1, end; | |
8064 | struct face *default_face; | |
f6b98e0b JB |
8065 | |
8066 | /* W must display the current buffer. We could write this function | |
8067 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 8068 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 8069 | |
ac22a6c4 | 8070 | XSETFRAME (frame, f); |
82641697 | 8071 | XSETFASTINT (position, pos); |
7b7739b1 | 8072 | |
f6b98e0b | 8073 | endpos = ZV; |
bc0db68d RS |
8074 | if (pos < region_beg && region_beg < endpos) |
8075 | endpos = region_beg; | |
f6b98e0b | 8076 | |
82641697 GM |
8077 | /* Get the `face' or `mouse_face' text property at POS, and |
8078 | determine the next position at which the property changes. */ | |
6f134486 | 8079 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
8080 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
8081 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
8082 | if (INTEGERP (end)) | |
8083 | endpos = XINT (end); | |
6f134486 | 8084 | |
82641697 | 8085 | /* Look at properties from overlays. */ |
b6d40e46 | 8086 | { |
f6b98e0b | 8087 | int next_overlay; |
b6d40e46 | 8088 | |
0bc90bba | 8089 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
8090 | if (next_overlay < endpos) |
8091 | endpos = next_overlay; | |
b6d40e46 JB |
8092 | } |
8093 | ||
8094 | *endptr = endpos; | |
7b7739b1 | 8095 | |
82641697 | 8096 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 8097 | |
82641697 GM |
8098 | /* Optimize common cases where we can use the default face. */ |
8099 | if (noverlays == 0 | |
8100 | && NILP (prop) | |
39506348 | 8101 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
8102 | return DEFAULT_FACE_ID; |
8103 | ||
8104 | /* Begin with attributes from the default face. */ | |
8105 | bcopy (default_face->lface, attrs, sizeof attrs); | |
8106 | ||
8107 | /* Merge in attributes specified via text properties. */ | |
8108 | if (!NILP (prop)) | |
a0a23346 | 8109 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8110 | |
8111 | /* Now merge the overlay data. */ | |
18195655 | 8112 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 8113 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 8114 | { |
18195655 RS |
8115 | Lisp_Object oend; |
8116 | int oendpos; | |
8117 | ||
8118 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 8119 | if (!NILP (prop)) |
a0a23346 | 8120 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
8121 | |
8122 | oend = OVERLAY_END (overlay_vec[i]); | |
8123 | oendpos = OVERLAY_POSITION (oend); | |
8124 | if (oendpos < endpos) | |
8125 | endpos = oendpos; | |
8126 | } | |
8127 | ||
82641697 | 8128 | /* If in the region, merge in the region face. */ |
18195655 RS |
8129 | if (pos >= region_beg && pos < region_end) |
8130 | { | |
a0a23346 | 8131 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 8132 | |
18195655 RS |
8133 | if (region_end < endpos) |
8134 | endpos = region_end; | |
18195655 RS |
8135 | } |
8136 | ||
8137 | *endptr = endpos; | |
8138 | ||
82641697 | 8139 | /* Look up a realized face with the given face attributes, |
39506348 | 8140 | or realize a new one for ASCII characters. */ |
af53b43c | 8141 | return lookup_face (f, attrs); |
18195655 RS |
8142 | } |
8143 | ||
60573a90 | 8144 | |
82641697 | 8145 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 8146 | window W, for ASCII characters. |
7b7739b1 | 8147 | |
82641697 GM |
8148 | If STRING is an overlay string, it comes from position BUFPOS in |
8149 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
8150 | not an overlay string. W must display the current buffer. | |
8151 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
8152 | region; both are -1 if no region is visible. |
8153 | ||
8154 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
8155 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 8156 | |
48a4ca99 GM |
8157 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
8158 | ||
82641697 GM |
8159 | Set *ENDPTR to the next position where to check for faces in |
8160 | STRING; -1 if the face is constant from POS to the end of the | |
8161 | string. | |
18195655 | 8162 | |
82641697 | 8163 | Value is the id of the face to use. The face returned is suitable |
39506348 | 8164 | for displaying ASCII characters. */ |
fffc2367 | 8165 | |
82641697 GM |
8166 | int |
8167 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 8168 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
8169 | struct window *w; |
8170 | Lisp_Object string; | |
8171 | int pos, bufpos; | |
8172 | int region_beg, region_end; | |
8173 | int *endptr; | |
8174 | enum face_id base_face_id; | |
48a4ca99 | 8175 | int mouse_p; |
660ed669 | 8176 | { |
82641697 GM |
8177 | Lisp_Object prop, position, end, limit; |
8178 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
8179 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8180 | struct face *base_face; | |
8181 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 8182 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
8183 | |
8184 | /* Get the value of the face property at the current position within | |
8185 | STRING. Value is nil if there is no face property. */ | |
8186 | XSETFASTINT (position, pos); | |
48a4ca99 | 8187 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
8188 | |
8189 | /* Get the next position at which to check for faces. Value of end | |
8190 | is nil if face is constant all the way to the end of the string. | |
8191 | Otherwise it is a string position where to check faces next. | |
8192 | Limit is the maximum position up to which to check for property | |
8193 | changes in Fnext_single_property_change. Strings are usually | |
8194 | short, so set the limit to the end of the string. */ | |
d5db4077 | 8195 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 8196 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
8197 | if (INTEGERP (end)) |
8198 | *endptr = XFASTINT (end); | |
8199 | else | |
8200 | *endptr = -1; | |
8201 | ||
8202 | base_face = FACE_FROM_ID (f, base_face_id); | |
8203 | xassert (base_face); | |
8204 | ||
8205 | /* Optimize the default case that there is no face property and we | |
8206 | are not in the region. */ | |
8207 | if (NILP (prop) | |
8208 | && (base_face_id != DEFAULT_FACE_ID | |
8209 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
8210 | that the region doesn't have to be taken into account. */ | |
8211 | || bufpos <= 0 | |
8212 | || bufpos < region_beg | |
8213 | || bufpos >= region_end) | |
8214 | && (multibyte_p | |
8215 | /* We can't realize faces for different charsets differently | |
8216 | if we don't have fonts, so we can stop here if not working | |
8217 | on a window-system frame. */ | |
8218 | || !FRAME_WINDOW_P (f) | |
39506348 | 8219 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
8220 | return base_face->id; |
8221 | ||
8222 | /* Begin with attributes from the base face. */ | |
8223 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8224 | ||
8225 | /* Merge in attributes specified via text properties. */ | |
8226 | if (!NILP (prop)) | |
a0a23346 | 8227 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8228 | |
8229 | /* If in the region, merge in the region face. */ | |
8230 | if (bufpos | |
8231 | && bufpos >= region_beg | |
8232 | && bufpos < region_end) | |
a0a23346 | 8233 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 8234 | |
82641697 | 8235 | /* Look up a realized face with the given face attributes, |
39506348 | 8236 | or realize a new one for ASCII characters. */ |
af53b43c | 8237 | return lookup_face (f, attrs); |
660ed669 JB |
8238 | } |
8239 | ||
8240 | ||
fd998c7f KS |
8241 | /* Merge a face into a realized face. |
8242 | ||
8243 | F is frame where faces are (to be) realized. | |
8244 | ||
dc91a0ed KS |
8245 | FACE_NAME is named face to merge. |
8246 | ||
8247 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
8248 | ||
8249 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
8250 | |
8251 | BASE_FACE_ID is realized face to merge into. | |
8252 | ||
dc91a0ed | 8253 | Return new face id. |
fd998c7f KS |
8254 | */ |
8255 | ||
8256 | int | |
dc91a0ed | 8257 | merge_faces (f, face_name, face_id, base_face_id) |
fd998c7f KS |
8258 | struct frame *f; |
8259 | Lisp_Object face_name; | |
8260 | int face_id, base_face_id; | |
8261 | { | |
8262 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8263 | struct face *base_face; | |
8264 | ||
8265 | base_face = FACE_FROM_ID (f, base_face_id); | |
8266 | if (!base_face) | |
8267 | return base_face_id; | |
8268 | ||
dc91a0ed KS |
8269 | if (EQ (face_name, Qt)) |
8270 | { | |
8271 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
8272 | return base_face_id; | |
8273 | face_name = lface_id_to_name[face_id]; | |
5c538596 | 8274 | face_id = lookup_derived_face (f, face_name, base_face_id, 1); |
dc91a0ed KS |
8275 | if (face_id >= 0) |
8276 | return face_id; | |
8277 | return base_face_id; | |
8278 | } | |
8279 | ||
fd998c7f KS |
8280 | /* Begin with attributes from the base face. */ |
8281 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8282 | ||
8283 | if (!NILP (face_name)) | |
8284 | { | |
8285 | if (!merge_named_face (f, face_name, attrs, 0)) | |
8286 | return base_face_id; | |
8287 | } | |
8288 | else | |
8289 | { | |
8290 | struct face *face; | |
dc91a0ed KS |
8291 | if (face_id < 0) |
8292 | return base_face_id; | |
fd998c7f KS |
8293 | face = FACE_FROM_ID (f, face_id); |
8294 | if (!face) | |
8295 | return base_face_id; | |
8296 | merge_face_vectors (f, face->lface, attrs, 0); | |
8297 | } | |
8298 | ||
8299 | /* Look up a realized face with the given face attributes, | |
8300 | or realize a new one for ASCII characters. */ | |
0e3ae538 | 8301 | return lookup_face (f, attrs); |
fd998c7f KS |
8302 | } |
8303 | ||
c115973b | 8304 | \f |
82641697 GM |
8305 | /*********************************************************************** |
8306 | Tests | |
8307 | ***********************************************************************/ | |
c115973b | 8308 | |
82641697 | 8309 | #if GLYPH_DEBUG |
c115973b | 8310 | |
82641697 | 8311 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 8312 | |
82641697 GM |
8313 | static void |
8314 | dump_realized_face (face) | |
8315 | struct face *face; | |
8316 | { | |
8317 | fprintf (stderr, "ID: %d\n", face->id); | |
8318 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 8319 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
8320 | #endif |
8321 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
8322 | face->foreground, | |
d5db4077 | 8323 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
8324 | fprintf (stderr, "background: 0x%lx (%s)\n", |
8325 | face->background, | |
d5db4077 | 8326 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
8327 | fprintf (stderr, "font_name: %s (%s)\n", |
8328 | face->font_name, | |
d5db4077 | 8329 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
8330 | #ifdef HAVE_X_WINDOWS |
8331 | fprintf (stderr, "font = %p\n", face->font); | |
8332 | #endif | |
8333 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
8334 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
8335 | fprintf (stderr, "underline: %d (%s)\n", | |
8336 | face->underline_p, | |
d5db4077 | 8337 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 | 8338 | fprintf (stderr, "hash: %d\n", face->hash); |
c115973b JB |
8339 | } |
8340 | ||
8341 | ||
7ee72033 MB |
8342 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
8343 | (n) | |
82641697 | 8344 | Lisp_Object n; |
c115973b | 8345 | { |
82641697 | 8346 | if (NILP (n)) |
c115973b | 8347 | { |
82641697 | 8348 | int i; |
178c5d9c | 8349 | |
82641697 GM |
8350 | fprintf (stderr, "font selection order: "); |
8351 | for (i = 0; i < DIM (font_sort_order); ++i) | |
8352 | fprintf (stderr, "%d ", font_sort_order[i]); | |
8353 | fprintf (stderr, "\n"); | |
8354 | ||
8355 | fprintf (stderr, "alternative fonts: "); | |
8356 | debug_print (Vface_alternative_font_family_alist); | |
8357 | fprintf (stderr, "\n"); | |
178c5d9c | 8358 | |
c0617987 | 8359 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 8360 | Fdump_face (make_number (i)); |
c115973b JB |
8361 | } |
8362 | else | |
f5e278c7 | 8363 | { |
82641697 | 8364 | struct face *face; |
b7826503 | 8365 | CHECK_NUMBER (n); |
c0617987 | 8366 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
8367 | if (face == NULL) |
8368 | error ("Not a valid face"); | |
8369 | dump_realized_face (face); | |
f5e278c7 | 8370 | } |
178c5d9c | 8371 | |
c115973b JB |
8372 | return Qnil; |
8373 | } | |
b5c53576 | 8374 | |
b5c53576 | 8375 | |
82641697 | 8376 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
8377 | 0, 0, 0, doc: /* */) |
8378 | () | |
b5c53576 | 8379 | { |
82641697 GM |
8380 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
8381 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
8382 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
8383 | return Qnil; | |
b5c53576 RS |
8384 | } |
8385 | ||
82641697 GM |
8386 | #endif /* GLYPH_DEBUG != 0 */ |
8387 | ||
b5c53576 | 8388 | |
c115973b | 8389 | \f |
82641697 GM |
8390 | /*********************************************************************** |
8391 | Initialization | |
8392 | ***********************************************************************/ | |
cb637678 | 8393 | |
c115973b | 8394 | void |
f211082d | 8395 | syms_of_xfaces () |
c115973b | 8396 | { |
f211082d JB |
8397 | Qface = intern ("face"); |
8398 | staticpro (&Qface); | |
46b00436 KS |
8399 | Qface_no_inherit = intern ("face-no-inherit"); |
8400 | staticpro (&Qface_no_inherit); | |
fef04523 GM |
8401 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
8402 | staticpro (&Qbitmap_spec_p); | |
c20577bc JL |
8403 | Qframe_set_background_mode = intern ("frame-set-background-mode"); |
8404 | staticpro (&Qframe_set_background_mode); | |
178c5d9c | 8405 | |
82641697 GM |
8406 | /* Lisp face attribute keywords. */ |
8407 | QCfamily = intern (":family"); | |
8408 | staticpro (&QCfamily); | |
8409 | QCheight = intern (":height"); | |
8410 | staticpro (&QCheight); | |
8411 | QCweight = intern (":weight"); | |
8412 | staticpro (&QCweight); | |
8413 | QCslant = intern (":slant"); | |
8414 | staticpro (&QCslant); | |
8415 | QCunderline = intern (":underline"); | |
8416 | staticpro (&QCunderline); | |
8417 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 8418 | staticpro (&QCinverse_video); |
82641697 GM |
8419 | QCreverse_video = intern (":reverse-video"); |
8420 | staticpro (&QCreverse_video); | |
8421 | QCforeground = intern (":foreground"); | |
8422 | staticpro (&QCforeground); | |
8423 | QCbackground = intern (":background"); | |
8424 | staticpro (&QCbackground); | |
8425 | QCstipple = intern (":stipple");; | |
8426 | staticpro (&QCstipple); | |
8427 | QCwidth = intern (":width"); | |
8428 | staticpro (&QCwidth); | |
8429 | QCfont = intern (":font"); | |
8430 | staticpro (&QCfont); | |
763bc839 KH |
8431 | QCfontset = intern (":fontset"); |
8432 | staticpro (&QCfontset); | |
82641697 GM |
8433 | QCbold = intern (":bold"); |
8434 | staticpro (&QCbold); | |
8435 | QCitalic = intern (":italic"); | |
8436 | staticpro (&QCitalic); | |
8437 | QCoverline = intern (":overline"); | |
8438 | staticpro (&QCoverline); | |
8439 | QCstrike_through = intern (":strike-through"); | |
8440 | staticpro (&QCstrike_through); | |
8441 | QCbox = intern (":box"); | |
8442 | staticpro (&QCbox); | |
2c20458f MB |
8443 | QCinherit = intern (":inherit"); |
8444 | staticpro (&QCinherit); | |
82641697 GM |
8445 | |
8446 | /* Symbols used for Lisp face attribute values. */ | |
8447 | QCcolor = intern (":color"); | |
8448 | staticpro (&QCcolor); | |
8449 | QCline_width = intern (":line-width"); | |
8450 | staticpro (&QCline_width); | |
8451 | QCstyle = intern (":style"); | |
8452 | staticpro (&QCstyle); | |
8453 | Qreleased_button = intern ("released-button"); | |
8454 | staticpro (&Qreleased_button); | |
8455 | Qpressed_button = intern ("pressed-button"); | |
8456 | staticpro (&Qpressed_button); | |
8457 | Qnormal = intern ("normal"); | |
8458 | staticpro (&Qnormal); | |
8459 | Qultra_light = intern ("ultra-light"); | |
8460 | staticpro (&Qultra_light); | |
8461 | Qextra_light = intern ("extra-light"); | |
8462 | staticpro (&Qextra_light); | |
8463 | Qlight = intern ("light"); | |
8464 | staticpro (&Qlight); | |
8465 | Qsemi_light = intern ("semi-light"); | |
8466 | staticpro (&Qsemi_light); | |
8467 | Qsemi_bold = intern ("semi-bold"); | |
8468 | staticpro (&Qsemi_bold); | |
8469 | Qbold = intern ("bold"); | |
8470 | staticpro (&Qbold); | |
8471 | Qextra_bold = intern ("extra-bold"); | |
8472 | staticpro (&Qextra_bold); | |
8473 | Qultra_bold = intern ("ultra-bold"); | |
8474 | staticpro (&Qultra_bold); | |
8475 | Qoblique = intern ("oblique"); | |
8476 | staticpro (&Qoblique); | |
8477 | Qitalic = intern ("italic"); | |
8478 | staticpro (&Qitalic); | |
8479 | Qreverse_oblique = intern ("reverse-oblique"); | |
8480 | staticpro (&Qreverse_oblique); | |
8481 | Qreverse_italic = intern ("reverse-italic"); | |
8482 | staticpro (&Qreverse_italic); | |
8483 | Qultra_condensed = intern ("ultra-condensed"); | |
8484 | staticpro (&Qultra_condensed); | |
8485 | Qextra_condensed = intern ("extra-condensed"); | |
8486 | staticpro (&Qextra_condensed); | |
8487 | Qcondensed = intern ("condensed"); | |
8488 | staticpro (&Qcondensed); | |
8489 | Qsemi_condensed = intern ("semi-condensed"); | |
8490 | staticpro (&Qsemi_condensed); | |
8491 | Qsemi_expanded = intern ("semi-expanded"); | |
8492 | staticpro (&Qsemi_expanded); | |
8493 | Qexpanded = intern ("expanded"); | |
8494 | staticpro (&Qexpanded); | |
8495 | Qextra_expanded = intern ("extra-expanded"); | |
8496 | staticpro (&Qextra_expanded); | |
8497 | Qultra_expanded = intern ("ultra-expanded"); | |
8498 | staticpro (&Qultra_expanded); | |
8499 | Qbackground_color = intern ("background-color"); | |
8500 | staticpro (&Qbackground_color); | |
8501 | Qforeground_color = intern ("foreground-color"); | |
8502 | staticpro (&Qforeground_color); | |
8503 | Qunspecified = intern ("unspecified"); | |
8504 | staticpro (&Qunspecified); | |
2ff10663 CY |
8505 | Qignore_defface = intern (":ignore-defface"); |
8506 | staticpro (&Qignore_defface); | |
82641697 | 8507 | |
92610620 GM |
8508 | Qface_alias = intern ("face-alias"); |
8509 | staticpro (&Qface_alias); | |
82641697 GM |
8510 | Qdefault = intern ("default"); |
8511 | staticpro (&Qdefault); | |
9ea173e8 GM |
8512 | Qtool_bar = intern ("tool-bar"); |
8513 | staticpro (&Qtool_bar); | |
82641697 GM |
8514 | Qregion = intern ("region"); |
8515 | staticpro (&Qregion); | |
8bd201d6 GM |
8516 | Qfringe = intern ("fringe"); |
8517 | staticpro (&Qfringe); | |
045dee35 GM |
8518 | Qheader_line = intern ("header-line"); |
8519 | staticpro (&Qheader_line); | |
8bd201d6 GM |
8520 | Qscroll_bar = intern ("scroll-bar"); |
8521 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
8522 | Qmenu = intern ("menu"); |
8523 | staticpro (&Qmenu); | |
8bd201d6 GM |
8524 | Qcursor = intern ("cursor"); |
8525 | staticpro (&Qcursor); | |
8526 | Qborder = intern ("border"); | |
8527 | staticpro (&Qborder); | |
8528 | Qmouse = intern ("mouse"); | |
8529 | staticpro (&Qmouse); | |
039b6394 KS |
8530 | Qmode_line_inactive = intern ("mode-line-inactive"); |
8531 | staticpro (&Qmode_line_inactive); | |
53abc3bf MB |
8532 | Qvertical_border = intern ("vertical-border"); |
8533 | staticpro (&Qvertical_border); | |
2d764c78 EZ |
8534 | Qtty_color_desc = intern ("tty-color-desc"); |
8535 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
8536 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
8537 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
8538 | Qtty_color_by_index = intern ("tty-color-by-index"); |
8539 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
8540 | Qtty_color_alist = intern ("tty-color-alist"); |
8541 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
8542 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
8543 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 8544 | |
dbc968b8 GM |
8545 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
8546 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
8547 | Vface_alternative_font_family_alist = Qnil; |
8548 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
8549 | Vface_alternative_font_registry_alist = Qnil; |
8550 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 8551 | |
82641697 GM |
8552 | defsubr (&Sinternal_make_lisp_face); |
8553 | defsubr (&Sinternal_lisp_face_p); | |
8554 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 8555 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 8556 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 8557 | #endif |
ea4fa0af GM |
8558 | defsubr (&Scolor_gray_p); |
8559 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
8560 | defsubr (&Sface_attribute_relative_p); |
8561 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
8562 | defsubr (&Sinternal_get_lisp_face_attribute); |
8563 | defsubr (&Sinternal_lisp_face_attribute_values); | |
8564 | defsubr (&Sinternal_lisp_face_equal_p); | |
8565 | defsubr (&Sinternal_lisp_face_empty_p); | |
8566 | defsubr (&Sinternal_copy_lisp_face); | |
8567 | defsubr (&Sinternal_merge_in_global_face); | |
8568 | defsubr (&Sface_font); | |
8569 | defsubr (&Sframe_face_alist); | |
9717e36c | 8570 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 8571 | defsubr (&Scolor_distance); |
82641697 GM |
8572 | defsubr (&Sinternal_set_font_selection_order); |
8573 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 8574 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 8575 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
8576 | #if GLYPH_DEBUG |
8577 | defsubr (&Sdump_face); | |
8578 | defsubr (&Sshow_face_resources); | |
8579 | #endif /* GLYPH_DEBUG */ | |
8580 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 8581 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 8582 | |
38426dee | 8583 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
8584 | defsubr (&Sdump_colors); |
8585 | #endif | |
8586 | ||
7ee72033 MB |
8587 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
8588 | doc: /* *Limit for font matching. | |
228299fa GM |
8589 | If an integer > 0, font matching functions won't load more than |
8590 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
8591 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
8592 | ||
7ee72033 MB |
8593 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
8594 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 8595 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 8596 | |
7ee72033 MB |
8597 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
8598 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
8599 | This stipple pattern is used on monochrome displays |
8600 | instead of shades of gray for a face background color. | |
8601 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
8602 | Vface_default_stipple = build_string ("gray3"); |
8603 | ||
7ee72033 MB |
8604 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
8605 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
8606 | Vtty_defined_color_alist = Qnil; |
8607 | ||
7ee72033 MB |
8608 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
8609 | doc: /* Allowed scalable fonts. | |
228299fa GM |
8610 | A value of nil means don't allow any scalable fonts. |
8611 | A value of t means allow any scalable font. | |
8612 | Otherwise, value must be a list of regular expressions. A font may be | |
8613 | scaled if its name matches a regular expression in the list. | |
8614 | Note that if value is nil, a scalable font might still be used, if no | |
8615 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 8616 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 8617 | |
7ee72033 MB |
8618 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
8619 | doc: /* List of ignored fonts. | |
228299fa GM |
8620 | Each element is a regular expression that matches names of fonts to |
8621 | ignore. */); | |
c824bfbc KH |
8622 | Vface_ignored_fonts = Qnil; |
8623 | ||
f70400f2 KH |
8624 | DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist, |
8625 | doc: /* Alist of fonts vs the rescaling factors. | |
8626 | Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where | |
8627 | FONT-NAME-PATTERN is a regular expression matching a font name, and | |
8628 | RESCALE-RATIO is a floating point number to specify how much larger | |
8629 | \(or smaller) font we should use. For instance, if a face requests | |
8630 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
8631 | Vface_font_rescale_alist = Qnil; | |
8632 | ||
c3cee013 | 8633 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 8634 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
8635 | defsubr (&Sx_list_fonts); |
8636 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 8637 | defsubr (&Sx_family_fonts); |
82641697 | 8638 | defsubr (&Sx_font_family_list); |
c3cee013 | 8639 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 8640 | } |
6b61353c KH |
8641 | |
8642 | /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749 | |
8643 | (do not change this comment) */ |