Commit | Line | Data |
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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
8cabe764 | 3 | 2005, 2006, 2007, 2008 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 | |
684d6f5b | 9 | the Free Software Foundation; either version 3, 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> | |
4d553a13 | 200 | #include <stdio.h> /* This needs to be before termchar.h */ |
7ee72033 | 201 | |
c115973b | 202 | #include "lisp.h" |
81b39386 | 203 | #include "character.h" |
a8517066 | 204 | #include "charset.h" |
9763806e | 205 | #include "keyboard.h" |
b5c53576 | 206 | #include "frame.h" |
428a555e | 207 | #include "termhooks.h" |
b5c53576 | 208 | |
f7cc6849 DL |
209 | #ifdef HAVE_WINDOW_SYSTEM |
210 | #include "fontset.h" | |
d12d0a9b GM |
211 | #endif /* HAVE_WINDOW_SYSTEM */ |
212 | ||
87485d6f | 213 | #ifdef HAVE_X_WINDOWS |
c115973b | 214 | #include "xterm.h" |
c7ae3284 GM |
215 | #ifdef USE_MOTIF |
216 | #include <Xm/Xm.h> | |
217 | #include <Xm/XmStrDefs.h> | |
218 | #endif /* USE_MOTIF */ | |
d12d0a9b | 219 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 220 | |
87485d6f MW |
221 | #ifdef MSDOS |
222 | #include "dosfns.h" | |
223 | #endif | |
82641697 | 224 | |
c3cee013 JR |
225 | #ifdef WINDOWSNT |
226 | #include "w32term.h" | |
227 | #include "fontset.h" | |
228 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
229 | code with #ifdef blocks. */ | |
9763806e | 230 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
231 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
232 | #define x_display_info w32_display_info | |
233 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
234 | #define check_x check_w32 | |
235 | #define x_list_fonts w32_list_fonts | |
236 | #define GCGraphicsExposures 0 | |
d12d0a9b | 237 | #endif /* WINDOWSNT */ |
c3cee013 | 238 | |
e0f712ba | 239 | #ifdef MAC_OS |
1a578e9b AC |
240 | #include "macterm.h" |
241 | #define x_display_info mac_display_info | |
242 | #define check_x check_mac | |
e0f712ba | 243 | #endif /* MAC_OS */ |
1a578e9b | 244 | |
c115973b | 245 | #include "buffer.h" |
f211082d | 246 | #include "dispextern.h" |
357f32fc | 247 | #include "blockinput.h" |
b6d40e46 | 248 | #include "window.h" |
bde7c500 | 249 | #include "intervals.h" |
28d440ab | 250 | #include "termchar.h" |
c115973b | 251 | |
426b2119 | 252 | #ifdef HAVE_WINDOW_SYSTEM |
426b2119 | 253 | #include "font.h" |
426b2119 KH |
254 | #endif /* HAVE_WINDOW_SYSTEM */ |
255 | ||
87485d6f | 256 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
257 | |
258 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
259 | time.h. On some such systems, Xos.h tries to redefine struct |
260 | timeval and struct timezone if USG is #defined while it is | |
261 | #included. */ | |
657070ac | 262 | |
82641697 | 263 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 264 | #include <time.h> |
657070ac JB |
265 | #undef USG |
266 | #include <X11/Xos.h> | |
267 | #define USG | |
e11d186d | 268 | #define __TIMEVAL__ |
82641697 GM |
269 | #else /* not XOS_NEEDS_TIME_H */ |
270 | #include <X11/Xos.h> | |
271 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 272 | |
82641697 | 273 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 274 | |
82641697 | 275 | #include <ctype.h> |
c115973b | 276 | |
c660ce4e GM |
277 | /* Number of pt per inch (from the TeXbook). */ |
278 | ||
279 | #define PT_PER_INCH 72.27 | |
280 | ||
82641697 GM |
281 | /* Non-zero if face attribute ATTR is unspecified. */ |
282 | ||
283 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
284 | ||
2ff10663 CY |
285 | /* Non-zero if face attribute ATTR is `ignore-defface'. */ |
286 | ||
287 | #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface) | |
288 | ||
82641697 GM |
289 | /* Value is the number of elements of VECTOR. */ |
290 | ||
291 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
292 | ||
178c5d9c | 293 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
294 | to the copy. */ |
295 | ||
296 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 297 | |
82641697 GM |
298 | /* Make a copy of the contents of Lisp string S on the stack using |
299 | alloca. Value is a pointer to the copy. */ | |
300 | ||
d5db4077 | 301 | #define LSTRDUPA(S) STRDUPA (SDATA ((S))) |
82641697 | 302 | |
178c5d9c | 303 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
304 | prime number). */ |
305 | ||
306 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
307 | ||
308 | /* Keyword symbols used for face attribute names. */ | |
309 | ||
310 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
311 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
312 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
313 | Lisp_Object QCreverse_video; | |
2c20458f | 314 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
763bc839 | 315 | Lisp_Object QCfontset; |
82641697 GM |
316 | |
317 | /* Symbols used for attribute values. */ | |
318 | ||
319 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
320 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
321 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
322 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
323 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
324 | Lisp_Object Qultra_expanded; | |
325 | Lisp_Object Qreleased_button, Qpressed_button; | |
326 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 | 327 | Lisp_Object Qunspecified; |
2ff10663 | 328 | Lisp_Object Qignore_defface; |
ef917393 EZ |
329 | |
330 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 331 | |
92610620 | 332 | /* The name of the function to call when the background of the frame |
c20577bc | 333 | has changed, frame_set_background_mode. */ |
92610620 | 334 | |
c20577bc | 335 | Lisp_Object Qframe_set_background_mode; |
92610620 | 336 | |
82641697 GM |
337 | /* Names of basic faces. */ |
338 | ||
fb4927c4 | 339 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 340 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
53abc3bf | 341 | Lisp_Object Qmode_line_inactive, Qvertical_border; |
fb4927c4 | 342 | extern Lisp_Object Qmode_line; |
8bd201d6 | 343 | |
92610620 GM |
344 | /* The symbol `face-alias'. A symbols having that property is an |
345 | alias for another face. Value of the property is the name of | |
346 | the aliased face. */ | |
347 | ||
348 | Lisp_Object Qface_alias; | |
349 | ||
d1bf13b3 KS |
350 | extern Lisp_Object Qcircular_list; |
351 | ||
82641697 GM |
352 | /* Default stipple pattern used on monochrome displays. This stipple |
353 | pattern is used on monochrome displays instead of shades of gray | |
354 | for a face background color. See `set-face-stipple' for possible | |
355 | values for this variable. */ | |
356 | ||
357 | Lisp_Object Vface_default_stipple; | |
358 | ||
82641697 GM |
359 | /* Alist of alternative font families. Each element is of the form |
360 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
361 | try FAMILY1, then FAMILY2, ... */ | |
362 | ||
363 | Lisp_Object Vface_alternative_font_family_alist; | |
364 | ||
32fcc231 GM |
365 | /* Alist of alternative font registries. Each element is of the form |
366 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
367 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
368 | ||
369 | Lisp_Object Vface_alternative_font_registry_alist; | |
370 | ||
82641697 GM |
371 | /* Allowed scalable fonts. A value of nil means don't allow any |
372 | scalable fonts. A value of t means allow the use of any scalable | |
373 | font. Otherwise, value must be a list of regular expressions. A | |
374 | font may be scaled if its name matches a regular expression in the | |
375 | list. */ | |
376 | ||
eeffb293 | 377 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 378 | |
c824bfbc KH |
379 | /* List of regular expressions that matches names of fonts to ignore. */ |
380 | ||
381 | Lisp_Object Vface_ignored_fonts; | |
382 | ||
f70400f2 KH |
383 | /* Alist of font name patterns vs the rescaling factor. */ |
384 | ||
385 | Lisp_Object Vface_font_rescale_alist; | |
386 | ||
057df17c GM |
387 | /* Maximum number of fonts to consider in font_list. If not an |
388 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
389 | ||
390 | Lisp_Object Vfont_list_limit; | |
391 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
392 | ||
82641697 GM |
393 | /* The symbols `foreground-color' and `background-color' which can be |
394 | used as part of a `face' property. This is for compatibility with | |
395 | Emacs 20.2. */ | |
396 | ||
397 | Lisp_Object Qforeground_color, Qbackground_color; | |
398 | ||
399 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 400 | |
ff83dbb1 | 401 | Lisp_Object Qface; |
82641697 GM |
402 | extern Lisp_Object Qmouse_face; |
403 | ||
46b00436 KS |
404 | /* Property for basic faces which other faces cannot inherit. */ |
405 | ||
406 | Lisp_Object Qface_no_inherit; | |
407 | ||
82641697 GM |
408 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
409 | ||
fef04523 | 410 | Lisp_Object Qbitmap_spec_p; |
f211082d | 411 | |
82641697 GM |
412 | /* Alist of global face definitions. Each element is of the form |
413 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
414 | is a Lisp vector of face attributes. These faces are used | |
415 | to initialize faces for new frames. */ | |
cb637678 | 416 | |
82641697 | 417 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 418 | |
82641697 | 419 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 420 | |
82641697 | 421 | static int next_lface_id; |
c115973b | 422 | |
82641697 | 423 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 424 | |
82641697 GM |
425 | static Lisp_Object *lface_id_to_name; |
426 | static int lface_id_to_name_size; | |
c115973b | 427 | |
ae4b4ba5 GM |
428 | /* TTY color-related functions (defined in tty-colors.el). */ |
429 | ||
b35df831 | 430 | Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 431 | |
ae4b4ba5 GM |
432 | /* The name of the function used to compute colors on TTYs. */ |
433 | ||
434 | Lisp_Object Qtty_color_alist; | |
435 | ||
436 | /* An alist of defined terminal colors and their RGB values. */ | |
437 | ||
438 | Lisp_Object Vtty_defined_color_alist; | |
439 | ||
82641697 GM |
440 | /* Counter for calls to clear_face_cache. If this counter reaches |
441 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
442 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
443 | ||
444 | static int clear_font_table_count; | |
445 | #define CLEAR_FONT_TABLE_COUNT 100 | |
446 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
447 | ||
448 | /* Non-zero means face attributes have been changed since the last | |
449 | redisplay. Used in redisplay_internal. */ | |
450 | ||
451 | int face_change_count; | |
452 | ||
a4a76b61 GM |
453 | /* Non-zero means don't display bold text if a face's foreground |
454 | and background colors are the inverse of the default colors of the | |
455 | display. This is a kluge to suppress `bold black' foreground text | |
456 | which is hard to read on an LCD monitor. */ | |
457 | ||
458 | int tty_suppress_bold_inverse_default_colors_p; | |
459 | ||
dbc968b8 GM |
460 | /* A list of the form `((x . y))' used to avoid consing in |
461 | Finternal_set_lisp_face_attribute. */ | |
462 | ||
463 | static Lisp_Object Vparam_value_alist; | |
464 | ||
82641697 GM |
465 | /* The total number of colors currently allocated. */ |
466 | ||
467 | #if GLYPH_DEBUG | |
468 | static int ncolors_allocated; | |
469 | static int npixmaps_allocated; | |
470 | static int ngcs; | |
471 | #endif | |
472 | ||
ceeda019 GM |
473 | /* Non-zero means the definition of the `menu' face for new frames has |
474 | been changed. */ | |
475 | ||
476 | int menu_face_changed_default; | |
82641697 GM |
477 | |
478 | \f | |
479 | /* Function prototypes. */ | |
480 | ||
481 | struct font_name; | |
482 | struct table_entry; | |
a0a23346 | 483 | struct named_merge_point; |
82641697 | 484 | |
ae4b4ba5 GM |
485 | static void map_tty_color P_ ((struct frame *, struct face *, |
486 | enum lface_attribute_index, int *)); | |
d1bf13b3 | 487 | static Lisp_Object resolve_face_name P_ ((Lisp_Object, int)); |
53c208f6 | 488 | static int may_use_scalable_font_p P_ ((const char *)); |
82641697 GM |
489 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
490 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 491 | int, int)); |
82641697 | 492 | static int x_face_list_fonts P_ ((struct frame *, char *, |
ee5be7c3 | 493 | struct font_name **, int, int)); |
82641697 | 494 | static int font_scalable_p P_ ((struct font_name *)); |
e7d7fd8c | 495 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
82641697 | 496 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); |
82641697 | 497 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
82641697 | 498 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
af53b43c | 499 | static void load_face_font P_ ((struct frame *, struct face *)); |
82641697 GM |
500 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
501 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
502 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
503 | static char *build_font_name P_ ((struct font_name *)); | |
504 | static void free_font_names P_ ((struct font_name *, int)); | |
505 | static int sorted_font_list P_ ((struct frame *, char *, | |
506 | int (*cmpfn) P_ ((const void *, const void *)), | |
507 | struct font_name **)); | |
32fcc231 GM |
508 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
509 | Lisp_Object, struct font_name **)); | |
39506348 KH |
510 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
511 | Lisp_Object, struct font_name **)); | |
af53b43c | 512 | static int try_font_list P_ ((struct frame *, Lisp_Object, |
39506348 | 513 | Lisp_Object, Lisp_Object, struct font_name **)); |
4a529c42 GM |
514 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
515 | Lisp_Object, struct font_name **)); | |
82641697 | 516 | static int cmp_font_names P_ ((const void *, const void *)); |
af53b43c KH |
517 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, |
518 | int)); | |
519 | static struct face *realize_non_ascii_face P_ ((struct frame *, int, | |
520 | struct face *)); | |
af53b43c KH |
521 | static struct face *realize_x_face P_ ((struct face_cache *, Lisp_Object *)); |
522 | static struct face *realize_tty_face P_ ((struct face_cache *, Lisp_Object *)); | |
82641697 GM |
523 | static int realize_basic_faces P_ ((struct frame *)); |
524 | static int realize_default_face P_ ((struct frame *)); | |
525 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
526 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
527 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
528 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
529 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
530 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
531 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
82641697 GM |
532 | static void clear_face_gcs P_ ((struct face_cache *)); |
533 | static void free_face_cache P_ ((struct face_cache *)); | |
534 | static int face_numeric_weight P_ ((Lisp_Object)); | |
535 | static int face_numeric_slant P_ ((Lisp_Object)); | |
536 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 537 | static int face_fontset P_ ((Lisp_Object *)); |
a0a23346 MB |
538 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, |
539 | struct named_merge_point *)); | |
540 | static int merge_face_ref P_ ((struct frame *, Lisp_Object, Lisp_Object *, | |
541 | int, struct named_merge_point *)); | |
39506348 KH |
542 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
543 | Lisp_Object, int, int)); | |
f4d3bea3 KH |
544 | static void set_lface_from_font_and_fontset 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 | { | |
ed0c79c6 | 753 | eassert (interrupt_input_blocked); |
a6d8ba25 | 754 | IF_DEBUG (xassert (--ngcs >= 0)); |
82641697 | 755 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
82641697 | 756 | } |
660ed669 | 757 | |
82641697 | 758 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 759 | |
c3cee013 JR |
760 | #ifdef WINDOWSNT |
761 | /* W32 emulation of GCs */ | |
762 | ||
763 | static INLINE GC | |
764 | x_create_gc (f, mask, xgcv) | |
765 | struct frame *f; | |
766 | unsigned long mask; | |
767 | XGCValues *xgcv; | |
768 | { | |
769 | GC gc; | |
770 | BLOCK_INPUT; | |
771 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
772 | UNBLOCK_INPUT; | |
773 | IF_DEBUG (++ngcs); | |
774 | return gc; | |
775 | } | |
776 | ||
777 | ||
778 | /* Free GC which was used on frame F. */ | |
779 | ||
780 | static INLINE void | |
781 | x_free_gc (f, gc) | |
782 | struct frame *f; | |
783 | GC gc; | |
784 | { | |
a6d8ba25 | 785 | IF_DEBUG (xassert (--ngcs >= 0)); |
c3cee013 | 786 | xfree (gc); |
c3cee013 JR |
787 | } |
788 | ||
789 | #endif /* WINDOWSNT */ | |
660ed669 | 790 | |
e0f712ba AC |
791 | #ifdef MAC_OS |
792 | /* Mac OS emulation of GCs */ | |
793 | ||
e0f712ba AC |
794 | static INLINE GC |
795 | x_create_gc (f, mask, xgcv) | |
796 | struct frame *f; | |
797 | unsigned long mask; | |
798 | XGCValues *xgcv; | |
799 | { | |
800 | GC gc; | |
61e62f5f | 801 | BLOCK_INPUT; |
e0f712ba | 802 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); |
61e62f5f YM |
803 | UNBLOCK_INPUT; |
804 | IF_DEBUG (++ngcs); | |
e0f712ba AC |
805 | return gc; |
806 | } | |
807 | ||
808 | static INLINE void | |
809 | x_free_gc (f, gc) | |
810 | struct frame *f; | |
811 | GC gc; | |
812 | { | |
ed0c79c6 | 813 | eassert (interrupt_input_blocked); |
61e62f5f | 814 | IF_DEBUG (xassert (--ngcs >= 0)); |
e0f712ba AC |
815 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); |
816 | } | |
817 | ||
818 | #endif /* MAC_OS */ | |
819 | ||
82641697 GM |
820 | /* Like stricmp. Used to compare parts of font names which are in |
821 | ISO8859-1. */ | |
822 | ||
823 | int | |
824 | xstricmp (s1, s2) | |
23889aba | 825 | const unsigned char *s1, *s2; |
82641697 GM |
826 | { |
827 | while (*s1 && *s2) | |
95887807 | 828 | { |
82641697 GM |
829 | unsigned char c1 = tolower (*s1); |
830 | unsigned char c2 = tolower (*s2); | |
831 | if (c1 != c2) | |
832 | return c1 < c2 ? -1 : 1; | |
833 | ++s1, ++s2; | |
95887807 | 834 | } |
cd0bb842 | 835 | |
82641697 GM |
836 | if (*s1 == 0) |
837 | return *s2 == 0 ? 0 : -1; | |
838 | return 1; | |
839 | } | |
660ed669 | 840 | |
660ed669 | 841 | |
82641697 | 842 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 843 | |
82641697 GM |
844 | static unsigned char * |
845 | xstrlwr (s) | |
846 | unsigned char *s; | |
847 | { | |
848 | unsigned char *p = s; | |
849 | ||
850 | for (p = s; *p; ++p) | |
9655b404 YM |
851 | /* On Mac OS X 10.3, tolower also converts non-ASCII characters |
852 | for some locales. */ | |
853 | if (isascii (*p)) | |
854 | *p = tolower (*p); | |
82641697 GM |
855 | |
856 | return s; | |
c115973b | 857 | } |
cb637678 | 858 | |
42120bc7 | 859 | |
c0617987 GM |
860 | /* If FRAME is nil, return a pointer to the selected frame. |
861 | Otherwise, check that FRAME is a live frame, and return a pointer | |
862 | to it. NPARAM is the parameter number of FRAME, for | |
863 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
864 | Lisp function definitions. */ | |
82641697 GM |
865 | |
866 | static INLINE struct frame * | |
867 | frame_or_selected_frame (frame, nparam) | |
868 | Lisp_Object frame; | |
869 | int nparam; | |
870 | { | |
82641697 | 871 | if (NILP (frame)) |
c0617987 | 872 | frame = selected_frame; |
178c5d9c | 873 | |
b7826503 | 874 | CHECK_LIVE_FRAME (frame); |
c0617987 | 875 | return XFRAME (frame); |
42120bc7 | 876 | } |
82641697 | 877 | |
42120bc7 | 878 | \f |
82641697 GM |
879 | /*********************************************************************** |
880 | Frames and faces | |
881 | ***********************************************************************/ | |
cd0bb842 | 882 | |
82641697 | 883 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 884 | |
82641697 GM |
885 | void |
886 | init_frame_faces (f) | |
cb637678 | 887 | struct frame *f; |
cb637678 | 888 | { |
82641697 GM |
889 | /* Make a face cache, if F doesn't have one. */ |
890 | if (FRAME_FACE_CACHE (f) == NULL) | |
891 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 892 | |
c3cee013 | 893 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 894 | /* Make the image cache. */ |
c3cee013 | 895 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
896 | { |
897 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
898 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
899 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
900 | } | |
c3cee013 | 901 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 902 | |
178c5d9c | 903 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
904 | parameters to realize basic faces at this point. */ |
905 | #ifdef HAVE_X_WINDOWS | |
906 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
907 | #endif |
908 | #ifdef WINDOWSNT | |
909 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
910 | #endif |
911 | #ifdef MAC_OS | |
912 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
913 | #endif |
914 | if (!realize_basic_faces (f)) | |
915 | abort (); | |
916 | } | |
cb637678 | 917 | |
cb637678 | 918 | |
82641697 | 919 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 920 | |
82641697 GM |
921 | void |
922 | free_frame_faces (f) | |
cb637678 | 923 | struct frame *f; |
cb637678 | 924 | { |
82641697 | 925 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 926 | |
82641697 GM |
927 | if (face_cache) |
928 | { | |
929 | free_face_cache (face_cache); | |
930 | FRAME_FACE_CACHE (f) = NULL; | |
931 | } | |
660ed669 | 932 | |
c3cee013 JR |
933 | #ifdef HAVE_WINDOW_SYSTEM |
934 | if (FRAME_WINDOW_P (f)) | |
195f798e | 935 | { |
82641697 GM |
936 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
937 | if (image_cache) | |
195f798e | 938 | { |
82641697 GM |
939 | --image_cache->refcount; |
940 | if (image_cache->refcount == 0) | |
941 | free_image_cache (f); | |
195f798e RS |
942 | } |
943 | } | |
c3cee013 | 944 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
945 | } |
946 | ||
82641697 | 947 | |
8bd201d6 GM |
948 | /* Clear face caches, and recompute basic faces for frame F. Call |
949 | this after changing frame parameters on which those faces depend, | |
950 | or when realized faces have been freed due to changing attributes | |
951 | of named faces. */ | |
82641697 GM |
952 | |
953 | void | |
954 | recompute_basic_faces (f) | |
cb637678 | 955 | struct frame *f; |
cb637678 | 956 | { |
82641697 GM |
957 | if (FRAME_FACE_CACHE (f)) |
958 | { | |
8bd201d6 | 959 | clear_face_cache (0); |
18df9369 GM |
960 | if (!realize_basic_faces (f)) |
961 | abort (); | |
82641697 GM |
962 | } |
963 | } | |
cb637678 | 964 | |
cb637678 | 965 | |
82641697 GM |
966 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
967 | try to free unused fonts, too. */ | |
cb637678 | 968 | |
adfea139 | 969 | void |
82641697 GM |
970 | clear_face_cache (clear_fonts_p) |
971 | int clear_fonts_p; | |
cb637678 | 972 | { |
c3cee013 | 973 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
974 | Lisp_Object tail, frame; |
975 | struct frame *f; | |
828e66d1 | 976 | |
82641697 GM |
977 | if (clear_fonts_p |
978 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 979 | { |
d5641fc5 | 980 | struct x_display_info *dpyinfo; |
177c0ea7 | 981 | |
426b2119 KH |
982 | #ifdef USE_FONT_BACKEND |
983 | if (! enable_font_backend) | |
984 | #endif /* USE_FONT_BACKEND */ | |
d5641fc5 GM |
985 | /* Fonts are common for frames on one display, i.e. on |
986 | one X screen. */ | |
987 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
988 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
989 | clear_font_table (dpyinfo); | |
177c0ea7 | 990 | |
82641697 GM |
991 | /* From time to time see if we can unload some fonts. This also |
992 | frees all realized faces on all frames. Fonts needed by | |
993 | faces will be loaded again when faces are realized again. */ | |
994 | clear_font_table_count = 0; | |
195f798e | 995 | |
82641697 | 996 | FOR_EACH_FRAME (tail, frame) |
195f798e | 997 | { |
d5641fc5 | 998 | struct frame *f = XFRAME (frame); |
c3cee013 | 999 | if (FRAME_WINDOW_P (f) |
82641697 | 1000 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 1001 | free_all_realized_faces (frame); |
82641697 GM |
1002 | } |
1003 | } | |
1004 | else | |
1005 | { | |
1006 | /* Clear GCs of realized faces. */ | |
1007 | FOR_EACH_FRAME (tail, frame) | |
1008 | { | |
1009 | f = XFRAME (frame); | |
c3cee013 | 1010 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1011 | { |
1012 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1013 | clear_image_cache (f, 0); | |
195f798e RS |
1014 | } |
1015 | } | |
828e66d1 | 1016 | } |
c3cee013 | 1017 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1018 | } |
1019 | ||
82641697 GM |
1020 | |
1021 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1022 | doc: /* Clear face caches on all frames. |
1023 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1024 | (thoroughly) | |
6a3f48c7 | 1025 | Lisp_Object thoroughly; |
cd0bb842 | 1026 | { |
6a3f48c7 | 1027 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1028 | ++face_change_count; |
1029 | ++windows_or_buffers_changed; | |
82641697 GM |
1030 | return Qnil; |
1031 | } | |
1032 | ||
1033 | ||
1034 | ||
c3cee013 | 1035 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1036 | |
1037 | ||
4cba8c0b GM |
1038 | /* Remove fonts from the font table of DPYINFO except for the default |
1039 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1040 | from time to time. */ |
82641697 GM |
1041 | |
1042 | static void | |
d5641fc5 GM |
1043 | clear_font_table (dpyinfo) |
1044 | struct x_display_info *dpyinfo; | |
82641697 | 1045 | { |
82641697 GM |
1046 | int i; |
1047 | ||
d5641fc5 | 1048 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1049 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1050 | { | |
1051 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1052 | Lisp_Object tail, frame; |
1053 | ||
1054 | /* Check if slot is already free. */ | |
1055 | if (font_info->name == NULL) | |
1056 | continue; | |
1057 | ||
3d90c96c | 1058 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1059 | FOR_EACH_FRAME (tail, frame) |
1060 | { | |
1061 | struct frame *f = XFRAME (frame); | |
1062 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1063 | && font_info->font == FRAME_FONT (f)) |
1064 | break; | |
1065 | } | |
82641697 | 1066 | |
d5641fc5 | 1067 | if (!NILP (tail)) |
39506348 | 1068 | continue; |
82641697 | 1069 | |
39506348 KH |
1070 | /* Free names. */ |
1071 | if (font_info->full_name != font_info->name) | |
1072 | xfree (font_info->full_name); | |
1073 | xfree (font_info->name); | |
82641697 | 1074 | |
39506348 KH |
1075 | /* Free the font. */ |
1076 | BLOCK_INPUT; | |
c3cee013 | 1077 | #ifdef HAVE_X_WINDOWS |
39506348 | 1078 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1079 | #endif |
1080 | #ifdef WINDOWSNT | |
39506348 | 1081 | w32_unload_font (dpyinfo, font_info->font); |
b15325b2 ST |
1082 | #endif |
1083 | #ifdef MAC_OS | |
1084 | mac_unload_font (dpyinfo, font_info->font); | |
c3cee013 | 1085 | #endif |
39506348 | 1086 | UNBLOCK_INPUT; |
82641697 | 1087 | |
39506348 KH |
1088 | /* Mark font table slot free. */ |
1089 | font_info->font = NULL; | |
1090 | font_info->name = font_info->full_name = NULL; | |
1091 | } | |
82641697 GM |
1092 | } |
1093 | ||
c3cee013 | 1094 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1095 | |
1096 | ||
1097 | \f | |
1098 | /*********************************************************************** | |
1099 | X Pixmaps | |
1100 | ***********************************************************************/ | |
1101 | ||
c3cee013 | 1102 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1103 | |
fef04523 | 1104 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1105 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1106 | A bitmap specification is either a string, a file name, or a list |
1107 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1108 | HEIGHT is its height, and DATA is a string containing the bits of | |
1109 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1110 | \(WIDTH + 7)/8 bytes. */) |
1111 | (object) | |
82641697 GM |
1112 | Lisp_Object object; |
1113 | { | |
c7ae3284 | 1114 | int pixmap_p = 0; |
178c5d9c | 1115 | |
c7ae3284 GM |
1116 | if (STRINGP (object)) |
1117 | /* If OBJECT is a string, it's a file name. */ | |
1118 | pixmap_p = 1; | |
1119 | else if (CONSP (object)) | |
1120 | { | |
1121 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1122 | HEIGHT must be integers > 0, and DATA must be string large | |
1123 | enough to hold a bitmap of the specified size. */ | |
1124 | Lisp_Object width, height, data; | |
1125 | ||
1126 | height = width = data = Qnil; | |
178c5d9c | 1127 | |
c7ae3284 GM |
1128 | if (CONSP (object)) |
1129 | { | |
1130 | width = XCAR (object); | |
1131 | object = XCDR (object); | |
1132 | if (CONSP (object)) | |
1133 | { | |
1134 | height = XCAR (object); | |
1135 | object = XCDR (object); | |
1136 | if (CONSP (object)) | |
1137 | data = XCAR (object); | |
1138 | } | |
1139 | } | |
cd0bb842 | 1140 | |
c7ae3284 GM |
1141 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1142 | { | |
1143 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1144 | / BITS_PER_CHAR); | |
d5db4077 | 1145 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1146 | pixmap_p = 1; |
1147 | } | |
1148 | } | |
1149 | ||
1150 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1151 | } |
1152 | ||
cd0bb842 | 1153 | |
82641697 GM |
1154 | /* Load a bitmap according to NAME (which is either a file name or a |
1155 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1156 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1157 | bitmap cannot be loaded, display a message saying so, and return | |
1158 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1159 | if these pointers are not null. */ | |
cd0bb842 | 1160 | |
82641697 | 1161 | static int |
cd0bb842 | 1162 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1163 | FRAME_PTR f; |
cd0bb842 RS |
1164 | Lisp_Object name; |
1165 | unsigned int *w_ptr, *h_ptr; | |
1166 | { | |
1167 | int bitmap_id; | |
cd0bb842 RS |
1168 | |
1169 | if (NILP (name)) | |
82641697 | 1170 | return 0; |
cd0bb842 | 1171 | |
d5ddd1a3 | 1172 | CHECK_TYPE (!NILP (Fbitmap_spec_p (name)), Qbitmap_spec_p, name); |
cd0bb842 RS |
1173 | |
1174 | BLOCK_INPUT; | |
cd0bb842 RS |
1175 | if (CONSP (name)) |
1176 | { | |
1177 | /* Decode a bitmap spec into a bitmap. */ | |
1178 | ||
1179 | int h, w; | |
1180 | Lisp_Object bits; | |
1181 | ||
1182 | w = XINT (Fcar (name)); | |
1183 | h = XINT (Fcar (Fcdr (name))); | |
1184 | bits = Fcar (Fcdr (Fcdr (name))); | |
1185 | ||
d5db4077 | 1186 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1187 | w, h); |
1188 | } | |
1189 | else | |
1190 | { | |
1191 | /* It must be a string -- a file name. */ | |
1192 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1193 | } | |
1194 | UNBLOCK_INPUT; | |
1195 | ||
7812a96f | 1196 | if (bitmap_id < 0) |
82641697 | 1197 | { |
2eb582ae | 1198 | add_to_log ("Invalid or undefined bitmap `%s'", name, Qnil); |
82641697 | 1199 | bitmap_id = 0; |
cd0bb842 | 1200 | |
82641697 GM |
1201 | if (w_ptr) |
1202 | *w_ptr = 0; | |
1203 | if (h_ptr) | |
1204 | *h_ptr = 0; | |
1205 | } | |
1206 | else | |
1207 | { | |
1208 | #if GLYPH_DEBUG | |
1209 | ++npixmaps_allocated; | |
1210 | #endif | |
1211 | if (w_ptr) | |
1212 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1213 | ||
1214 | if (h_ptr) | |
1215 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1216 | } | |
cd0bb842 RS |
1217 | |
1218 | return bitmap_id; | |
cb637678 | 1219 | } |
87485d6f | 1220 | |
c3cee013 | 1221 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1222 | |
87485d6f | 1223 | |
82641697 | 1224 | \f |
82641697 GM |
1225 | /*********************************************************************** |
1226 | Fonts | |
1227 | ***********************************************************************/ | |
1228 | ||
c3cee013 | 1229 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1230 | |
af53b43c | 1231 | /* Load font of face FACE which is used on frame F to display ASCII |
763bc839 | 1232 | characters. The name of the font to load is determined by lface. */ |
82641697 GM |
1233 | |
1234 | static void | |
af53b43c | 1235 | load_face_font (f, face) |
82641697 GM |
1236 | struct frame *f; |
1237 | struct face *face; | |
87485d6f | 1238 | { |
82641697 | 1239 | struct font_info *font_info = NULL; |
39506348 | 1240 | char *font_name; |
6ae2cd57 | 1241 | int needs_overstrike; |
178c5d9c | 1242 | |
426b2119 KH |
1243 | #ifdef USE_FONT_BACKEND |
1244 | if (enable_font_backend) | |
1245 | abort (); | |
1246 | #endif /* USE_FONT_BACKEND */ | |
82641697 | 1247 | face->font_info_id = -1; |
82641697 | 1248 | face->font = NULL; |
af53b43c | 1249 | face->font_name = NULL; |
39506348 | 1250 | |
8f924df7 | 1251 | font_name = choose_face_font (f, face->lface, Qnil, &needs_overstrike); |
39506348 KH |
1252 | if (!font_name) |
1253 | return; | |
1254 | ||
82641697 | 1255 | BLOCK_INPUT; |
81b39386 | 1256 | font_info = FS_LOAD_FONT (f, font_name); |
82641697 GM |
1257 | UNBLOCK_INPUT; |
1258 | ||
1259 | if (font_info) | |
1260 | { | |
39506348 | 1261 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1262 | face->font = font_info->font; |
1263 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1264 | face->overstrike = needs_overstrike; |
39506348 | 1265 | if (face->gc) |
82641697 | 1266 | { |
ed0c79c6 | 1267 | BLOCK_INPUT; |
39506348 KH |
1268 | x_free_gc (f, face->gc); |
1269 | face->gc = 0; | |
ed0c79c6 | 1270 | UNBLOCK_INPUT; |
82641697 GM |
1271 | } |
1272 | } | |
39506348 | 1273 | else |
1b8f7fbc | 1274 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1275 | build_string (font_name), Qnil); |
39506348 | 1276 | xfree (font_name); |
87485d6f MW |
1277 | } |
1278 | ||
c3cee013 | 1279 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1280 | |
87485d6f | 1281 | |
82641697 GM |
1282 | \f |
1283 | /*********************************************************************** | |
1284 | X Colors | |
1285 | ***********************************************************************/ | |
1286 | ||
b35df831 MB |
1287 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1288 | RGB_LIST should contain (at least) 3 lisp integers. | |
1289 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1290 | ||
1291 | static int | |
1292 | parse_rgb_list (rgb_list, color) | |
1293 | Lisp_Object rgb_list; | |
1294 | XColor *color; | |
1295 | { | |
1296 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1297 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1298 | { \ | |
1299 | color->field = XINT (XCAR (rgb_list)); \ | |
1300 | rgb_list = XCDR (rgb_list); \ | |
1301 | } \ | |
1302 | else \ | |
1303 | return 0; | |
1304 | ||
1305 | PARSE_RGB_LIST_FIELD (red); | |
1306 | PARSE_RGB_LIST_FIELD (green); | |
1307 | PARSE_RGB_LIST_FIELD (blue); | |
1308 | ||
1309 | return 1; | |
1310 | } | |
1311 | ||
1312 | ||
1313 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1314 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1315 | non-zero, then the `standard' definition of the same color is | |
1316 | returned in it. */ | |
1317 | ||
1318 | static int | |
1319 | tty_lookup_color (f, color, tty_color, std_color) | |
1320 | struct frame *f; | |
1321 | Lisp_Object color; | |
1322 | XColor *tty_color, *std_color; | |
1323 | { | |
1324 | Lisp_Object frame, color_desc; | |
1325 | ||
1326 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1327 | return 0; | |
1328 | ||
1329 | XSETFRAME (frame, f); | |
1330 | ||
1331 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1332 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1333 | { | |
1334 | Lisp_Object rgb; | |
1335 | ||
1336 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1337 | return 0; | |
1338 | ||
1339 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1340 | ||
1341 | rgb = XCDR (XCDR (color_desc)); | |
1342 | if (! parse_rgb_list (rgb, tty_color)) | |
1343 | return 0; | |
1344 | ||
1345 | /* Should we fill in STD_COLOR too? */ | |
1346 | if (std_color) | |
1347 | { | |
1348 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1349 | *std_color = *tty_color; | |
1350 | ||
1351 | /* Do a quick check to see if the returned descriptor is | |
1352 | actually _exactly_ equal to COLOR, otherwise we have to | |
1353 | lookup STD_COLOR separately. If it's impossible to lookup | |
1354 | a standard color, we just give up and use TTY_COLOR. */ | |
1355 | if ((!STRINGP (XCAR (color_desc)) | |
1356 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1357 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1358 | { |
1359 | /* Look up STD_COLOR separately. */ | |
1360 | rgb = call1 (Qtty_color_standard_values, color); | |
1361 | if (! parse_rgb_list (rgb, std_color)) | |
1362 | return 0; | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | return 1; | |
1367 | } | |
1368 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1369 | /* We were called early during startup, and the colors are not | |
1370 | yet set up in tty-defined-color-alist. Don't return a failure | |
1371 | indication, since this produces the annoying "Unable to | |
1372 | load color" messages in the *Messages* buffer. */ | |
1373 | return 1; | |
1374 | else | |
1375 | /* tty-color-desc seems to have returned a bad value. */ | |
1376 | return 0; | |
1377 | } | |
1378 | ||
2d764c78 | 1379 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1380 | |
2d764c78 EZ |
1381 | int |
1382 | tty_defined_color (f, color_name, color_def, alloc) | |
1383 | struct frame *f; | |
1384 | char *color_name; | |
1385 | XColor *color_def; | |
1386 | int alloc; | |
1387 | { | |
2d764c78 EZ |
1388 | int status = 1; |
1389 | ||
b35df831 | 1390 | /* Defaults. */ |
177c0ea7 | 1391 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1392 | color_def->red = 0; |
1393 | color_def->blue = 0; | |
1394 | color_def->green = 0; | |
a61c12d5 | 1395 | |
b35df831 | 1396 | if (*color_name) |
3062711f | 1397 | status = tty_lookup_color (f, build_string (color_name), color_def, NULL); |
b35df831 MB |
1398 | |
1399 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1400 | { |
1401 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1402 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1403 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1404 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1405 | } |
1406 | ||
b35df831 | 1407 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1408 | status = 1; |
1409 | ||
2d764c78 EZ |
1410 | return status; |
1411 | } | |
1412 | ||
08dc08dc GM |
1413 | |
1414 | /* Decide if color named COLOR_NAME is valid for the display | |
1415 | associated with the frame F; if so, return the rgb values in | |
1416 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1417 | |
1418 | This does the right thing for any type of frame. */ | |
08dc08dc | 1419 | |
2d764c78 EZ |
1420 | int |
1421 | defined_color (f, color_name, color_def, alloc) | |
1422 | struct frame *f; | |
1423 | char *color_name; | |
1424 | XColor *color_def; | |
1425 | int alloc; | |
1426 | { | |
1427 | if (!FRAME_WINDOW_P (f)) | |
1428 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1429 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1430 | else if (FRAME_X_P (f)) |
1431 | return x_defined_color (f, color_name, color_def, alloc); | |
1432 | #endif | |
1433 | #ifdef WINDOWSNT | |
1434 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1435 | return w32_defined_color (f, color_name, color_def, alloc); |
1436 | #endif | |
e0f712ba | 1437 | #ifdef MAC_OS |
2d764c78 | 1438 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1439 | return mac_defined_color (f, color_name, color_def, alloc); |
1440 | #endif | |
1441 | else | |
1442 | abort (); | |
1443 | } | |
1444 | ||
08dc08dc GM |
1445 | |
1446 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1447 | Lisp string. */ | |
2d764c78 EZ |
1448 | |
1449 | Lisp_Object | |
1450 | tty_color_name (f, idx) | |
1451 | struct frame *f; | |
1452 | int idx; | |
1453 | { | |
2d764c78 EZ |
1454 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1455 | { | |
a61c12d5 EZ |
1456 | Lisp_Object frame; |
1457 | Lisp_Object coldesc; | |
1458 | ||
1459 | XSETFRAME (frame, f); | |
1460 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1461 | |
1462 | if (!NILP (coldesc)) | |
1463 | return XCAR (coldesc); | |
1464 | } | |
1465 | #ifdef MSDOS | |
1466 | /* We can have an MSDOG frame under -nw for a short window of | |
1467 | opportunity before internal_terminal_init is called. DTRT. */ | |
1468 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1469 | return msdos_stdcolor_name (idx); | |
1470 | #endif | |
1471 | ||
ef917393 EZ |
1472 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1473 | return build_string (unspecified_fg); | |
1474 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1475 | return build_string (unspecified_bg); | |
c3cee013 | 1476 | |
ef917393 | 1477 | return Qunspecified; |
2d764c78 | 1478 | } |
82641697 | 1479 | |
08dc08dc | 1480 | |
82641697 | 1481 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1482 | black) on frame F. |
1483 | ||
1484 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1485 | |
1486 | static int | |
1487 | face_color_gray_p (f, color_name) | |
1488 | struct frame *f; | |
1489 | char *color_name; | |
1490 | { | |
1491 | XColor color; | |
1492 | int gray_p; | |
1493 | ||
1494 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1495 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1496 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1497 | || | |
1ea40aa2 | 1498 | ((eabs (color.red - color.green) |
71433d39 | 1499 | < max (color.red, color.green) / 20) |
1ea40aa2 | 1500 | && (eabs (color.green - color.blue) |
71433d39 | 1501 | < max (color.green, color.blue) / 20) |
1ea40aa2 | 1502 | && (eabs (color.blue - color.red) |
71433d39 | 1503 | < max (color.blue, color.red) / 20))); |
87485d6f | 1504 | else |
82641697 | 1505 | gray_p = 0; |
178c5d9c | 1506 | |
82641697 | 1507 | return gray_p; |
87485d6f | 1508 | } |
87485d6f | 1509 | |
cb637678 | 1510 | |
82641697 GM |
1511 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1512 | BACKGROUND_P non-zero means the color will be used as background | |
1513 | color. */ | |
1514 | ||
1515 | static int | |
1516 | face_color_supported_p (f, color_name, background_p) | |
1517 | struct frame *f; | |
1518 | char *color_name; | |
1519 | int background_p; | |
1520 | { | |
1521 | Lisp_Object frame; | |
2d764c78 | 1522 | XColor not_used; |
82641697 GM |
1523 | |
1524 | XSETFRAME (frame, f); | |
6b61353c | 1525 | return |
6a46b96b | 1526 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1527 | FRAME_WINDOW_P (f) |
1528 | ? (!NILP (Fxw_display_color_p (frame)) | |
1529 | || xstricmp (color_name, "black") == 0 | |
1530 | || xstricmp (color_name, "white") == 0 | |
1531 | || (background_p | |
1532 | && face_color_gray_p (f, color_name)) | |
1533 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1534 | && face_color_gray_p (f, color_name))) | |
1535 | : | |
1536 | #endif | |
1537 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1538 | } |
82641697 GM |
1539 | |
1540 | ||
da47150d | 1541 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1542 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1543 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1544 | If FRAME is nil or omitted, use the selected frame. */) |
1545 | (color, frame) | |
82641697 | 1546 | Lisp_Object color, frame; |
cb637678 | 1547 | { |
2d764c78 EZ |
1548 | struct frame *f; |
1549 | ||
b7826503 | 1550 | CHECK_STRING (color); |
6b61353c KH |
1551 | if (NILP (frame)) |
1552 | frame = selected_frame; | |
1553 | else | |
1554 | CHECK_FRAME (frame); | |
2d764c78 | 1555 | f = XFRAME (frame); |
d5db4077 | 1556 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1557 | } |
660ed669 | 1558 | |
fffc2367 | 1559 | |
da47150d | 1560 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1561 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1562 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1563 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1564 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1565 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 MB |
1566 | COLOR must be a valid color name. */) |
1567 | (color, frame, background_p) | |
82641697 GM |
1568 | Lisp_Object frame, color, background_p; |
1569 | { | |
2d764c78 EZ |
1570 | struct frame *f; |
1571 | ||
b7826503 | 1572 | CHECK_STRING (color); |
6b61353c KH |
1573 | if (NILP (frame)) |
1574 | frame = selected_frame; | |
1575 | else | |
1576 | CHECK_FRAME (frame); | |
2d764c78 | 1577 | f = XFRAME (frame); |
d5db4077 | 1578 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1579 | return Qt; |
1580 | return Qnil; | |
1581 | } | |
7b37f67b | 1582 | |
08dc08dc | 1583 | |
82641697 GM |
1584 | /* Load color with name NAME for use by face FACE on frame F. |
1585 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1586 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1587 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1588 | pixel color. If color cannot be loaded, display a message, and | |
1589 | return the foreground, background or underline color of F, but | |
1590 | record that fact in flags of the face so that we don't try to free | |
1591 | these colors. */ | |
1592 | ||
44747bd0 | 1593 | unsigned long |
82641697 GM |
1594 | load_color (f, face, name, target_index) |
1595 | struct frame *f; | |
1596 | struct face *face; | |
1597 | Lisp_Object name; | |
1598 | enum lface_attribute_index target_index; | |
1599 | { | |
1600 | XColor color; | |
178c5d9c | 1601 | |
82641697 GM |
1602 | xassert (STRINGP (name)); |
1603 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1604 | || target_index == LFACE_BACKGROUND_INDEX | |
1605 | || target_index == LFACE_UNDERLINE_INDEX | |
1606 | || target_index == LFACE_OVERLINE_INDEX | |
1607 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1608 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1609 | |
82641697 GM |
1610 | /* if the color map is full, defined_color will return a best match |
1611 | to the values in an existing cell. */ | |
d5db4077 | 1612 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1613 | { |
2d764c78 | 1614 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1615 | |
82641697 | 1616 | switch (target_index) |
1120eb5e | 1617 | { |
82641697 GM |
1618 | case LFACE_FOREGROUND_INDEX: |
1619 | face->foreground_defaulted_p = 1; | |
1620 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1621 | break; | |
178c5d9c | 1622 | |
82641697 GM |
1623 | case LFACE_BACKGROUND_INDEX: |
1624 | face->background_defaulted_p = 1; | |
1625 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1626 | break; | |
178c5d9c | 1627 | |
82641697 GM |
1628 | case LFACE_UNDERLINE_INDEX: |
1629 | face->underline_defaulted_p = 1; | |
1630 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1631 | break; | |
178c5d9c | 1632 | |
82641697 GM |
1633 | case LFACE_OVERLINE_INDEX: |
1634 | face->overline_color_defaulted_p = 1; | |
1635 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1636 | break; |
178c5d9c | 1637 | |
82641697 GM |
1638 | case LFACE_STRIKE_THROUGH_INDEX: |
1639 | face->strike_through_color_defaulted_p = 1; | |
1640 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1641 | break; | |
178c5d9c | 1642 | |
82641697 GM |
1643 | case LFACE_BOX_INDEX: |
1644 | face->box_color_defaulted_p = 1; | |
1645 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1646 | break; | |
1647 | ||
1648 | default: | |
1649 | abort (); | |
1120eb5e | 1650 | } |
82641697 GM |
1651 | } |
1652 | #if GLYPH_DEBUG | |
1653 | else | |
1654 | ++ncolors_allocated; | |
1655 | #endif | |
178c5d9c | 1656 | |
82641697 GM |
1657 | return color.pixel; |
1658 | } | |
1120eb5e | 1659 | |
08dc08dc | 1660 | |
c3cee013 | 1661 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1662 | |
82641697 GM |
1663 | /* Load colors for face FACE which is used on frame F. Colors are |
1664 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1665 | of ATTRS. If the background color specified is not supported on F, | |
1666 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1667 | ||
1668 | static void | |
1669 | load_face_colors (f, face, attrs) | |
1670 | struct frame *f; | |
1671 | struct face *face; | |
1672 | Lisp_Object *attrs; | |
1673 | { | |
1674 | Lisp_Object fg, bg; | |
1675 | ||
1676 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1677 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1678 | ||
1679 | /* Swap colors if face is inverse-video. */ | |
1680 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1681 | { | |
1682 | Lisp_Object tmp; | |
1683 | tmp = fg; | |
1684 | fg = bg; | |
1685 | bg = tmp; | |
1686 | } | |
1687 | ||
1688 | /* Check for support for foreground, not for background because | |
1689 | face_color_supported_p is smart enough to know that grays are | |
1690 | "supported" as background because we are supposed to use stipple | |
1691 | for them. */ | |
d5db4077 | 1692 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1693 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1694 | { |
1695 | x_destroy_bitmap (f, face->stipple); | |
1696 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1697 | &face->pixmap_w, &face->pixmap_h); | |
1698 | } | |
82641697 | 1699 | |
be8a72f4 | 1700 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1701 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1702 | } |
1703 | ||
660ed669 | 1704 | |
82641697 | 1705 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1706 | |
cb637678 | 1707 | void |
82641697 | 1708 | unload_color (f, pixel) |
cb637678 | 1709 | struct frame *f; |
82641697 | 1710 | unsigned long pixel; |
cb637678 | 1711 | { |
c3cee013 | 1712 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1713 | if (pixel != -1) |
1714 | { | |
1715 | BLOCK_INPUT; | |
1716 | x_free_colors (f, &pixel, 1); | |
1717 | UNBLOCK_INPUT; | |
1718 | } | |
c3cee013 | 1719 | #endif |
82641697 GM |
1720 | } |
1721 | ||
1722 | ||
1723 | /* Free colors allocated for FACE. */ | |
1724 | ||
1725 | static void | |
1726 | free_face_colors (f, face) | |
1727 | struct frame *f; | |
1728 | struct face *face; | |
1729 | { | |
c3cee013 | 1730 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1731 | if (face->colors_copied_bitwise_p) |
1732 | return; | |
1733 | ||
08dc08dc | 1734 | BLOCK_INPUT; |
178c5d9c | 1735 | |
08dc08dc GM |
1736 | if (!face->foreground_defaulted_p) |
1737 | { | |
1738 | x_free_colors (f, &face->foreground, 1); | |
1739 | IF_DEBUG (--ncolors_allocated); | |
1740 | } | |
178c5d9c | 1741 | |
08dc08dc GM |
1742 | if (!face->background_defaulted_p) |
1743 | { | |
1744 | x_free_colors (f, &face->background, 1); | |
1745 | IF_DEBUG (--ncolors_allocated); | |
1746 | } | |
82641697 | 1747 | |
08dc08dc GM |
1748 | if (face->underline_p |
1749 | && !face->underline_defaulted_p) | |
1750 | { | |
1751 | x_free_colors (f, &face->underline_color, 1); | |
1752 | IF_DEBUG (--ncolors_allocated); | |
1753 | } | |
82641697 | 1754 | |
08dc08dc GM |
1755 | if (face->overline_p |
1756 | && !face->overline_color_defaulted_p) | |
1757 | { | |
1758 | x_free_colors (f, &face->overline_color, 1); | |
1759 | IF_DEBUG (--ncolors_allocated); | |
1760 | } | |
82641697 | 1761 | |
08dc08dc GM |
1762 | if (face->strike_through_p |
1763 | && !face->strike_through_color_defaulted_p) | |
1764 | { | |
1765 | x_free_colors (f, &face->strike_through_color, 1); | |
1766 | IF_DEBUG (--ncolors_allocated); | |
1767 | } | |
82641697 | 1768 | |
08dc08dc GM |
1769 | if (face->box != FACE_NO_BOX |
1770 | && !face->box_color_defaulted_p) | |
1771 | { | |
1772 | x_free_colors (f, &face->box_color, 1); | |
1773 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1774 | } |
08dc08dc GM |
1775 | |
1776 | UNBLOCK_INPUT; | |
2d764c78 | 1777 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1778 | } |
08dc08dc | 1779 | |
c3cee013 | 1780 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1781 | |
1782 | ||
1783 | \f | |
1784 | /*********************************************************************** | |
1785 | XLFD Font Names | |
1786 | ***********************************************************************/ | |
1787 | ||
1788 | /* An enumerator for each field of an XLFD font name. */ | |
1789 | ||
1790 | enum xlfd_field | |
1791 | { | |
1792 | XLFD_FOUNDRY, | |
1793 | XLFD_FAMILY, | |
1794 | XLFD_WEIGHT, | |
1795 | XLFD_SLANT, | |
1796 | XLFD_SWIDTH, | |
1797 | XLFD_ADSTYLE, | |
1798 | XLFD_PIXEL_SIZE, | |
1799 | XLFD_POINT_SIZE, | |
1800 | XLFD_RESX, | |
1801 | XLFD_RESY, | |
1802 | XLFD_SPACING, | |
1803 | XLFD_AVGWIDTH, | |
1804 | XLFD_REGISTRY, | |
1805 | XLFD_ENCODING, | |
1806 | XLFD_LAST | |
1807 | }; | |
1808 | ||
178c5d9c | 1809 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1810 | the XLFD specification. */ |
1811 | ||
1812 | enum xlfd_slant | |
1813 | { | |
1814 | XLFD_SLANT_UNKNOWN, | |
1815 | XLFD_SLANT_ROMAN, | |
1816 | XLFD_SLANT_ITALIC, | |
1817 | XLFD_SLANT_OBLIQUE, | |
1818 | XLFD_SLANT_REVERSE_ITALIC, | |
1819 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1820 | XLFD_SLANT_OTHER | |
1821 | }; | |
1822 | ||
1823 | /* Relative font weight according to XLFD documentation. */ | |
1824 | ||
1825 | enum xlfd_weight | |
1826 | { | |
1827 | XLFD_WEIGHT_UNKNOWN, | |
1828 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1829 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1830 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1831 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1832 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1833 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1834 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1835 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1836 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1837 | }; | |
1838 | ||
1839 | /* Relative proportionate width. */ | |
1840 | ||
1841 | enum xlfd_swidth | |
1842 | { | |
1843 | XLFD_SWIDTH_UNKNOWN, | |
1844 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1845 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1846 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1847 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1848 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1849 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1850 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1851 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1852 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1853 | }; | |
1854 | ||
1855 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1856 | names to numeric and symbolic values. */ | |
1857 | ||
1858 | struct table_entry | |
1859 | { | |
1860 | char *name; | |
1861 | int numeric; | |
1862 | Lisp_Object *symbol; | |
1863 | }; | |
1864 | ||
1865 | /* Table of XLFD slant names and their numeric and symbolic | |
1866 | representations. This table must be sorted by slant names in | |
1867 | ascending order. */ | |
1868 | ||
1869 | static struct table_entry slant_table[] = | |
1870 | { | |
1871 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1872 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1873 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1874 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1875 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1876 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1877 | }; | |
1878 | ||
1879 | /* Table of XLFD weight names. This table must be sorted by weight | |
1880 | names in ascending order. */ | |
1881 | ||
1882 | static struct table_entry weight_table[] = | |
1883 | { | |
1884 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1885 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1886 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1887 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1888 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1889 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1890 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1891 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1892 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1893 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1894 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1895 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1896 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1897 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1898 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1899 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1900 | }; | |
1901 | ||
1902 | /* Table of XLFD width names. This table must be sorted by width | |
1903 | names in ascending order. */ | |
1904 | ||
1905 | static struct table_entry swidth_table[] = | |
1906 | { | |
1907 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1908 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1909 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1910 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1911 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1912 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1913 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1914 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1915 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1916 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1917 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1918 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1919 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1920 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1921 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1922 | }; | |
1923 | ||
1924 | /* Structure used to hold the result of splitting font names in XLFD | |
1925 | format into their fields. */ | |
1926 | ||
1927 | struct font_name | |
1928 | { | |
1929 | /* The original name which is modified destructively by | |
1930 | split_font_name. The pointer is kept here to be able to free it | |
1931 | if it was allocated from the heap. */ | |
1932 | char *name; | |
1933 | ||
1934 | /* Font name fields. Each vector element points into `name' above. | |
1935 | Fields are NUL-terminated. */ | |
1936 | char *fields[XLFD_LAST]; | |
1937 | ||
1938 | /* Numeric values for those fields that interest us. See | |
1939 | split_font_name for which these are. */ | |
1940 | int numeric[XLFD_LAST]; | |
8e1b21a7 | 1941 | |
f70400f2 KH |
1942 | /* If the original name matches one of Vface_font_rescale_alist, |
1943 | the value is the corresponding rescale ratio. Otherwise, the | |
1944 | value is 1.0. */ | |
1945 | double rescale_ratio; | |
1946 | ||
8e1b21a7 KH |
1947 | /* Lower value mean higher priority. */ |
1948 | int registry_priority; | |
82641697 GM |
1949 | }; |
1950 | ||
1951 | /* The frame in effect when sorting font names. Set temporarily in | |
1952 | sort_fonts so that it is available in font comparison functions. */ | |
1953 | ||
1954 | static struct frame *font_frame; | |
1955 | ||
1956 | /* Order by which font selection chooses fonts. The default values | |
1957 | mean `first, find a best match for the font width, then for the | |
1958 | font height, then for weight, then for slant.' This variable can be | |
1959 | set via set-face-font-sort-order. */ | |
1960 | ||
e0f712ba | 1961 | #ifdef MAC_OS |
a08332c0 GM |
1962 | static int font_sort_order[4] = { |
1963 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1964 | }; | |
1a578e9b | 1965 | #else |
82641697 | 1966 | static int font_sort_order[4]; |
1a578e9b | 1967 | #endif |
82641697 GM |
1968 | |
1969 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1970 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1971 | is a pointer to the matching table entry or null if no table entry | |
1972 | matches. */ | |
1973 | ||
1974 | static struct table_entry * | |
1975 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1976 | struct table_entry *table; | |
1977 | int dim; | |
1978 | struct font_name *font; | |
1979 | int field_index; | |
1980 | { | |
1981 | /* Function split_font_name converts fields to lower-case, so there | |
1982 | is no need to use xstrlwr or xstricmp here. */ | |
1983 | char *s = font->fields[field_index]; | |
1984 | int low, mid, high, cmp; | |
1985 | ||
1986 | low = 0; | |
1987 | high = dim - 1; | |
1988 | ||
1989 | while (low <= high) | |
1990 | { | |
1991 | mid = (low + high) / 2; | |
1992 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1993 | |
82641697 GM |
1994 | if (cmp < 0) |
1995 | low = mid + 1; | |
1996 | else if (cmp > 0) | |
1997 | high = mid - 1; | |
1998 | else | |
1999 | return table + mid; | |
2000 | } | |
2001 | ||
2002 | return NULL; | |
2003 | } | |
2004 | ||
2005 | ||
2006 | /* Return a numeric representation for font name field | |
2007 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2008 | has DIM entries. Value is the numeric value found or DFLT if no | |
2009 | table entry matches. This function is used to translate weight, | |
2010 | slant, and swidth names of XLFD font names to numeric values. */ | |
2011 | ||
2012 | static INLINE int | |
2013 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2014 | struct table_entry *table; | |
2015 | int dim; | |
2016 | struct font_name *font; | |
2017 | int field_index; | |
2018 | int dflt; | |
2019 | { | |
2020 | struct table_entry *p; | |
2021 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2022 | return p ? p->numeric : dflt; | |
2023 | } | |
2024 | ||
2025 | ||
2026 | /* Return a symbolic 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 symbolic 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 symbols. */ | |
2031 | ||
2032 | static INLINE Lisp_Object | |
2033 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2034 | struct table_entry *table; | |
2035 | int dim; | |
2036 | struct font_name *font; | |
2037 | int field_index; | |
6fc556fd | 2038 | Lisp_Object dflt; |
82641697 GM |
2039 | { |
2040 | struct table_entry *p; | |
2041 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2042 | return p ? *p->symbol : dflt; | |
2043 | } | |
2044 | ||
2045 | ||
2046 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2047 | ||
2048 | static INLINE int | |
2049 | xlfd_numeric_slant (font) | |
2050 | struct font_name *font; | |
2051 | { | |
2052 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2053 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2054 | } | |
2055 | ||
2056 | ||
2057 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2058 | ||
2059 | static INLINE Lisp_Object | |
2060 | xlfd_symbolic_slant (font) | |
2061 | struct font_name *font; | |
2062 | { | |
2063 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2064 | font, XLFD_SLANT, Qnormal); | |
2065 | } | |
2066 | ||
2067 | ||
2068 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2069 | ||
2070 | static INLINE int | |
2071 | xlfd_numeric_weight (font) | |
2072 | struct font_name *font; | |
2073 | { | |
2074 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2075 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2076 | } | |
2077 | ||
2078 | ||
2079 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2080 | ||
2081 | static INLINE Lisp_Object | |
2082 | xlfd_symbolic_weight (font) | |
2083 | struct font_name *font; | |
2084 | { | |
2085 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2086 | font, XLFD_WEIGHT, Qnormal); | |
2087 | } | |
2088 | ||
2089 | ||
2090 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2091 | name fields are found in FONT. */ | |
2092 | ||
2093 | static INLINE int | |
2094 | xlfd_numeric_swidth (font) | |
2095 | struct font_name *font; | |
2096 | { | |
2097 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2098 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2099 | } | |
2100 | ||
2101 | ||
2102 | /* Return a symbolic value for the swidth of FONT. */ | |
2103 | ||
2104 | static INLINE Lisp_Object | |
2105 | xlfd_symbolic_swidth (font) | |
2106 | struct font_name *font; | |
2107 | { | |
2108 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2109 | font, XLFD_SWIDTH, Qnormal); | |
2110 | } | |
178c5d9c | 2111 | |
82641697 GM |
2112 | |
2113 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2114 | entries. Value is a pointer to the matching table entry or null if | |
2115 | no element of TABLE contains SYMBOL. */ | |
2116 | ||
2117 | static struct table_entry * | |
2118 | face_value (table, dim, symbol) | |
2119 | struct table_entry *table; | |
2120 | int dim; | |
2121 | Lisp_Object symbol; | |
2122 | { | |
2123 | int i; | |
2124 | ||
2125 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2126 | |
82641697 GM |
2127 | for (i = 0; i < dim; ++i) |
2128 | if (EQ (*table[i].symbol, symbol)) | |
2129 | break; | |
2130 | ||
2131 | return i < dim ? table + i : NULL; | |
2132 | } | |
2133 | ||
2134 | ||
2135 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2136 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2137 | ||
2138 | static INLINE int | |
2139 | face_numeric_value (table, dim, symbol) | |
2140 | struct table_entry *table; | |
3062711f | 2141 | size_t dim; |
82641697 GM |
2142 | Lisp_Object symbol; |
2143 | { | |
2144 | struct table_entry *p = face_value (table, dim, symbol); | |
2145 | return p ? p->numeric : -1; | |
2146 | } | |
2147 | ||
2148 | ||
2149 | /* Return a numeric value representing the weight specified by Lisp | |
2150 | symbol WEIGHT. Value is one of the enumerators of enum | |
2151 | xlfd_weight. */ | |
2152 | ||
2153 | static INLINE int | |
2154 | face_numeric_weight (weight) | |
2155 | Lisp_Object weight; | |
2156 | { | |
2157 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2158 | } | |
2159 | ||
2160 | ||
2161 | /* Return a numeric value representing the slant specified by Lisp | |
2162 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2163 | ||
2164 | static INLINE int | |
2165 | face_numeric_slant (slant) | |
2166 | Lisp_Object slant; | |
2167 | { | |
2168 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2169 | } | |
2170 | ||
2171 | ||
2172 | /* Return a numeric value representing the swidth specified by Lisp | |
2173 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2174 | ||
2175 | static int | |
2176 | face_numeric_swidth (width) | |
2177 | Lisp_Object width; | |
2178 | { | |
2179 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2180 | } | |
2181 | ||
8c6204de KH |
2182 | #ifdef HAVE_WINDOW_SYSTEM |
2183 | ||
426b2119 KH |
2184 | #ifdef USE_FONT_BACKEND |
2185 | static INLINE Lisp_Object | |
2186 | face_symbolic_value (table, dim, font_prop) | |
2187 | struct table_entry *table; | |
2188 | int dim; | |
2189 | Lisp_Object font_prop; | |
2190 | { | |
2191 | struct table_entry *p; | |
2192 | char *s = SDATA (SYMBOL_NAME (font_prop)); | |
2193 | int low, mid, high, cmp; | |
2194 | ||
2195 | low = 0; | |
2196 | high = dim - 1; | |
2197 | ||
2198 | while (low <= high) | |
2199 | { | |
2200 | mid = (low + high) / 2; | |
2201 | cmp = strcmp (table[mid].name, s); | |
2202 | ||
2203 | if (cmp < 0) | |
2204 | low = mid + 1; | |
2205 | else if (cmp > 0) | |
2206 | high = mid - 1; | |
2207 | else | |
2208 | return *table[mid].symbol; | |
2209 | } | |
2210 | ||
2211 | return Qnil; | |
2212 | } | |
2213 | ||
2214 | static INLINE Lisp_Object | |
2215 | face_symbolic_weight (weight) | |
2216 | Lisp_Object weight; | |
2217 | { | |
2218 | return face_symbolic_value (weight_table, DIM (weight_table), weight); | |
2219 | } | |
2220 | ||
2221 | static INLINE Lisp_Object | |
2222 | face_symbolic_slant (slant) | |
2223 | Lisp_Object slant; | |
2224 | { | |
2225 | return face_symbolic_value (slant_table, DIM (slant_table), slant); | |
2226 | } | |
2227 | ||
2228 | static INLINE Lisp_Object | |
2229 | face_symbolic_swidth (width) | |
2230 | Lisp_Object width; | |
2231 | { | |
2232 | return face_symbolic_value (swidth_table, DIM (swidth_table), width); | |
2233 | } | |
2234 | #endif /* USE_FONT_BACKEND */ | |
2235 | ||
81b39386 | 2236 | Lisp_Object |
154c2d39 KH |
2237 | split_font_name_into_vector (fontname) |
2238 | Lisp_Object fontname; | |
81b39386 KH |
2239 | { |
2240 | struct font_name font; | |
154c2d39 KH |
2241 | Lisp_Object vec; |
2242 | int i; | |
81b39386 | 2243 | |
154c2d39 | 2244 | font.name = LSTRDUPA (fontname); |
81b39386 KH |
2245 | if (! split_font_name (NULL, &font, 0)) |
2246 | return Qnil; | |
154c2d39 KH |
2247 | vec = Fmake_vector (make_number (XLFD_LAST), Qnil); |
2248 | for (i = 0; i < XLFD_LAST; i++) | |
2249 | if (font.fields[i][0] != '*') | |
2250 | ASET (vec, i, build_string (font.fields[i])); | |
2251 | return vec; | |
2252 | } | |
81b39386 | 2253 | |
154c2d39 KH |
2254 | Lisp_Object |
2255 | build_font_name_from_vector (vec) | |
2256 | Lisp_Object vec; | |
2257 | { | |
2258 | struct font_name font; | |
2259 | Lisp_Object fontname; | |
2260 | char *p; | |
2261 | int i; | |
2262 | ||
2263 | for (i = 0; i < XLFD_LAST; i++) | |
81b39386 | 2264 | { |
154c2d39 | 2265 | font.fields[i] = (NILP (AREF (vec, i)) |
8f924df7 | 2266 | ? "*" : (char *) SDATA (AREF (vec, i))); |
154c2d39 KH |
2267 | if ((i == XLFD_FAMILY || i == XLFD_REGISTRY) |
2268 | && (p = strchr (font.fields[i], '-'))) | |
81b39386 | 2269 | { |
154c2d39 KH |
2270 | char *p1 = STRDUPA (font.fields[i]); |
2271 | ||
2272 | p1[p - font.fields[i]] = '\0'; | |
2273 | if (i == XLFD_FAMILY) | |
2274 | { | |
2275 | font.fields[XLFD_FOUNDRY] = p1; | |
2276 | font.fields[XLFD_FAMILY] = p + 1; | |
2277 | } | |
2278 | else | |
2279 | { | |
2280 | font.fields[XLFD_REGISTRY] = p1; | |
2281 | font.fields[XLFD_ENCODING] = p + 1; | |
2282 | break; | |
2283 | } | |
81b39386 KH |
2284 | } |
2285 | } | |
81b39386 KH |
2286 | |
2287 | p = build_font_name (&font); | |
154c2d39 | 2288 | fontname = build_string (p); |
81b39386 | 2289 | xfree (p); |
154c2d39 | 2290 | return fontname; |
af53b43c | 2291 | } |
82641697 | 2292 | |
82641697 GM |
2293 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ |
2294 | ||
2295 | static INLINE int | |
2296 | xlfd_fixed_p (font) | |
2297 | struct font_name *font; | |
2298 | { | |
2299 | /* Function split_font_name converts fields to lower-case, so there | |
2300 | is no need to use tolower here. */ | |
2301 | return *font->fields[XLFD_SPACING] != 'p'; | |
2302 | } | |
2303 | ||
2304 | ||
2305 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2306 | ||
2307 | The actual height of the font when displayed on F depends on the | |
2308 | resolution of both the font and frame. For example, a 10pt font | |
2309 | designed for a 100dpi display will display larger than 10pt on a | |
2310 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2311 | display one is using. For example, some intlfonts are available in | |
2312 | 72dpi versions, only.) | |
2313 | ||
2314 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
4ab1b919 KH |
2315 | be determined. |
2316 | ||
2317 | By side effect, set FONT->numeric[XLFD_PIXEL_SIZE]. */ | |
82641697 GM |
2318 | |
2319 | static INLINE int | |
2320 | xlfd_point_size (f, font) | |
2321 | struct frame *f; | |
2322 | struct font_name *font; | |
2323 | { | |
2324 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2325 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2326 | double pixel; | |
82641697 GM |
2327 | int real_pt; |
2328 | ||
933b0249 GM |
2329 | if (*pixel_field == '[') |
2330 | { | |
2331 | /* The pixel size field is `[A B C D]' which specifies | |
2332 | a transformation matrix. | |
2333 | ||
2334 | A B 0 | |
2335 | C D 0 | |
2336 | 0 0 1 | |
2337 | ||
2338 | by which all glyphs of the font are transformed. The spec | |
2339 | says that s scalar value N for the pixel size is equivalent | |
2340 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2341 | char *start = pixel_field + 1, *end; | |
2342 | double matrix[4]; | |
2343 | int i; | |
2344 | ||
2345 | for (i = 0; i < 4; ++i) | |
2346 | { | |
2347 | matrix[i] = strtod (start, &end); | |
2348 | start = end; | |
2349 | } | |
2350 | ||
7eb4b061 | 2351 | pixel = matrix[3]; |
933b0249 GM |
2352 | } |
2353 | else | |
2354 | pixel = atoi (pixel_field); | |
177c0ea7 | 2355 | |
4ab1b919 | 2356 | font->numeric[XLFD_PIXEL_SIZE] = pixel; |
933b0249 | 2357 | if (pixel == 0) |
82641697 GM |
2358 | real_pt = 0; |
2359 | else | |
933b0249 | 2360 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2361 | |
2362 | return real_pt; | |
2363 | } | |
2364 | ||
2365 | ||
39506348 KH |
2366 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2367 | of frame F. This function is used to guess a point size of font | |
2368 | when only the pixel height of the font is available. */ | |
2369 | ||
2370 | static INLINE int | |
2371 | pixel_point_size (f, pixel) | |
2372 | struct frame *f; | |
2373 | int pixel; | |
2374 | { | |
2375 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2376 | double real_pt; | |
2377 | int int_pt; | |
2378 | ||
c660ce4e GM |
2379 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2380 | point size of one dot. */ | |
2381 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2382 | int_pt = real_pt + 0.5; |
2383 | ||
2384 | return int_pt; | |
2385 | } | |
2386 | ||
2387 | ||
f70400f2 KH |
2388 | /* Return a rescaling ratio of a font of NAME. */ |
2389 | ||
2390 | static double | |
f0d62075 DL |
2391 | font_rescale_ratio (name) |
2392 | char *name; | |
f70400f2 | 2393 | { |
8f924df7 | 2394 | Lisp_Object tail, elt; |
f70400f2 KH |
2395 | |
2396 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2397 | { | |
2398 | elt = XCAR (tail); | |
2399 | if (STRINGP (XCAR (elt)) && FLOATP (XCDR (elt)) | |
2400 | && fast_c_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2401 | return XFLOAT_DATA (XCDR (elt)); | |
2402 | } | |
2403 | return 1.0; | |
2404 | } | |
2405 | ||
2406 | ||
82641697 GM |
2407 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2408 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2409 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2410 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2411 | zero if the font name doesn't have the format we expect. The | |
2412 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2413 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2414 | |
2415 | static int | |
2416 | split_font_name (f, font, numeric_p) | |
2417 | struct frame *f; | |
2418 | struct font_name *font; | |
2419 | int numeric_p; | |
2420 | { | |
2421 | int i = 0; | |
2422 | int success_p; | |
f70400f2 KH |
2423 | double rescale_ratio; |
2424 | ||
2425 | if (numeric_p) | |
2426 | /* This must be done before splitting the font name. */ | |
2427 | rescale_ratio = font_rescale_ratio (font->name); | |
82641697 GM |
2428 | |
2429 | if (*font->name == '-') | |
2430 | { | |
2431 | char *p = xstrlwr (font->name) + 1; | |
2432 | ||
7b16a6bf | 2433 | while (i < XLFD_LAST) |
82641697 GM |
2434 | { |
2435 | font->fields[i] = p; | |
7b16a6bf | 2436 | ++i; |
933b0249 GM |
2437 | |
2438 | /* Pixel and point size may be of the form `[....]'. For | |
2439 | BNF, see XLFD spec, chapter 4. Negative values are | |
2440 | indicated by tilde characters which we replace with | |
2441 | `-' characters, here. */ | |
2442 | if (*p == '[' | |
d5188d8c GM |
2443 | && (i - 1 == XLFD_PIXEL_SIZE |
2444 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2445 | { |
2446 | char *start, *end; | |
2447 | int j; | |
177c0ea7 | 2448 | |
933b0249 GM |
2449 | for (++p; *p && *p != ']'; ++p) |
2450 | if (*p == '~') | |
2451 | *p = '-'; | |
2452 | ||
2453 | /* Check that the matrix contains 4 floating point | |
2454 | numbers. */ | |
3849cbf4 | 2455 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2456 | j < 4; |
2457 | ++j, start = end) | |
2458 | if (strtod (start, &end) == 0 && start == end) | |
2459 | break; | |
2460 | ||
2461 | if (j < 4) | |
2462 | break; | |
2463 | } | |
178c5d9c | 2464 | |
82641697 GM |
2465 | while (*p && *p != '-') |
2466 | ++p; | |
178c5d9c | 2467 | |
82641697 GM |
2468 | if (*p != '-') |
2469 | break; | |
178c5d9c | 2470 | |
82641697 GM |
2471 | *p++ = 0; |
2472 | } | |
2473 | } | |
2474 | ||
2475 | success_p = i == XLFD_LAST; | |
2476 | ||
2477 | /* If requested, and font name was in the expected format, | |
2478 | compute numeric values for some fields. */ | |
2479 | if (numeric_p && success_p) | |
2480 | { | |
2481 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2482 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2483 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2484 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2485 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2486 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
f70400f2 | 2487 | font->rescale_ratio = rescale_ratio; |
82641697 GM |
2488 | } |
2489 | ||
8e1b21a7 KH |
2490 | /* Initialize it to zero. It will be overridden by font_list while |
2491 | trying alternate registries. */ | |
2492 | font->registry_priority = 0; | |
2493 | ||
82641697 GM |
2494 | return success_p; |
2495 | } | |
2496 | ||
2497 | ||
2498 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2499 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2500 | |
82641697 GM |
2501 | static char * |
2502 | build_font_name (font) | |
2503 | struct font_name *font; | |
2504 | { | |
2505 | int i; | |
2506 | int size = 100; | |
2507 | char *font_name = (char *) xmalloc (size); | |
2508 | int total_length = 0; | |
2509 | ||
2510 | for (i = 0; i < XLFD_LAST; ++i) | |
2511 | { | |
2512 | /* Add 1 because of the leading `-'. */ | |
2513 | int len = strlen (font->fields[i]) + 1; | |
2514 | ||
2515 | /* Reallocate font_name if necessary. Add 1 for the final | |
2516 | NUL-byte. */ | |
2517 | if (total_length + len + 1 >= size) | |
2518 | { | |
2519 | int new_size = max (2 * size, size + len + 1); | |
2520 | int sz = new_size * sizeof *font_name; | |
2521 | font_name = (char *) xrealloc (font_name, sz); | |
2522 | size = new_size; | |
2523 | } | |
2524 | ||
2525 | font_name[total_length] = '-'; | |
2526 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2527 | total_length += len; | |
2528 | } | |
2529 | ||
2530 | font_name[total_length] = 0; | |
2531 | return font_name; | |
2532 | } | |
2533 | ||
2534 | ||
2535 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2536 | itself and all `name' fields in its elements. */ | |
2537 | ||
2538 | static INLINE void | |
2539 | free_font_names (fonts, n) | |
2540 | struct font_name *fonts; | |
2541 | int n; | |
2542 | { | |
2543 | while (n) | |
2544 | xfree (fonts[--n].name); | |
2545 | xfree (fonts); | |
2546 | } | |
2547 | ||
2548 | ||
2549 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2550 | elements using qsort and comparison function CMPFN. F is the frame | |
2551 | on which the fonts will be used. The global variable font_frame | |
2552 | is temporarily set to F to make it available in CMPFN. */ | |
2553 | ||
2554 | static INLINE void | |
2555 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2556 | struct frame *f; | |
2557 | struct font_name *fonts; | |
2558 | int nfonts; | |
2559 | int (*cmpfn) P_ ((const void *, const void *)); | |
2560 | { | |
2561 | font_frame = f; | |
2562 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2563 | font_frame = NULL; | |
2564 | } | |
2565 | ||
2566 | ||
2567 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2568 | display in x_display_list. FONTS is a pointer to a vector of | |
2569 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2570 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2571 | found matching PATTERN. |
82641697 GM |
2572 | |
2573 | For all fonts found, set FONTS[i].name to the name of the font, | |
2574 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2575 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2576 | |
2577 | static int | |
ee5be7c3 | 2578 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2579 | struct frame *f; |
2580 | char *pattern; | |
ee5be7c3 | 2581 | struct font_name **pfonts; |
82641697 | 2582 | int nfonts, try_alternatives_p; |
82641697 | 2583 | { |
702a1e8e | 2584 | int n, nignored; |
82641697 | 2585 | |
c3cee013 JR |
2586 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2587 | better to do it the other way around. */ | |
2588 | Lisp_Object lfonts; | |
2589 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2590 | struct font_name *fonts = 0; |
2591 | int num_fonts = nfonts; | |
c3cee013 | 2592 | |
ee5be7c3 | 2593 | *pfonts = 0; |
c3cee013 JR |
2594 | lpattern = build_string (pattern); |
2595 | ||
2596 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2597 | #ifdef WINDOWSNT |
a86110a8 | 2598 | BLOCK_INPUT; |
c3cee013 | 2599 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2600 | UNBLOCK_INPUT; |
d26d6fd9 | 2601 | #else |
702a1e8e | 2602 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2603 | #endif |
c3cee013 | 2604 | |
ee5be7c3 | 2605 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2606 | num_fonts = XFASTINT (Flength (lfonts)); |
8f924df7 | 2607 | |
d26d6fd9 GM |
2608 | /* Make a copy of the font names we got from X, and |
2609 | split them into fields. */ | |
702a1e8e | 2610 | n = nignored = 0; |
ee5be7c3 | 2611 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2612 | { |
d26d6fd9 | 2613 | Lisp_Object elt, tail; |
53c208f6 | 2614 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2615 | |
702a1e8e | 2616 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2617 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2618 | { |
d26d6fd9 GM |
2619 | elt = XCAR (tail); |
2620 | if (STRINGP (elt) | |
2621 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2622 | break; | |
2623 | } | |
2624 | if (!NILP (tail)) | |
702a1e8e GM |
2625 | { |
2626 | ++nignored; | |
2627 | continue; | |
2628 | } | |
c824bfbc | 2629 | |
ee5be7c3 JD |
2630 | if (! fonts) |
2631 | { | |
2632 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2633 | fonts = *pfonts; | |
2634 | } | |
2635 | ||
d26d6fd9 GM |
2636 | /* Make a copy of the font name. */ |
2637 | fonts[n].name = xstrdup (name); | |
82641697 | 2638 | |
702a1e8e | 2639 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2640 | { |
702a1e8e GM |
2641 | if (font_scalable_p (fonts + n) |
2642 | && !may_use_scalable_font_p (name)) | |
2643 | { | |
2644 | ++nignored; | |
2645 | xfree (fonts[n].name); | |
2646 | } | |
82641697 | 2647 | else |
d26d6fd9 | 2648 | ++n; |
82641697 | 2649 | } |
d26d6fd9 | 2650 | else |
702a1e8e GM |
2651 | xfree (fonts[n].name); |
2652 | } | |
2653 | ||
82641697 GM |
2654 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2655 | if (n == 0 && try_alternatives_p) | |
2656 | { | |
2657 | Lisp_Object list = Valternate_fontname_alist; | |
2658 | ||
72ecb43c JD |
2659 | if (*pfonts) |
2660 | { | |
2661 | xfree (*pfonts); | |
2662 | *pfonts = 0; | |
2663 | } | |
2664 | ||
82641697 GM |
2665 | while (CONSP (list)) |
2666 | { | |
2667 | Lisp_Object entry = XCAR (list); | |
2668 | if (CONSP (entry) | |
2669 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2670 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2671 | break; |
2672 | list = XCDR (list); | |
2673 | } | |
2674 | ||
2675 | if (CONSP (list)) | |
2676 | { | |
2677 | Lisp_Object patterns = XCAR (list); | |
2678 | Lisp_Object name; | |
178c5d9c | 2679 | |
82641697 GM |
2680 | while (CONSP (patterns) |
2681 | /* If list is screwed up, give up. */ | |
2682 | && (name = XCAR (patterns), | |
2683 | STRINGP (name)) | |
2684 | /* Ignore patterns equal to PATTERN because we tried that | |
2685 | already with no success. */ | |
d5db4077 KR |
2686 | && (strcmp (SDATA (name), pattern) == 0 |
2687 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2688 | pfonts, nfonts, 0), |
82641697 GM |
2689 | n == 0))) |
2690 | patterns = XCDR (patterns); | |
2691 | } | |
2692 | } | |
178c5d9c | 2693 | |
82641697 GM |
2694 | return n; |
2695 | } | |
178c5d9c | 2696 | |
82641697 | 2697 | |
6b61353c KH |
2698 | /* Check if a font matching pattern_offset_t on frame F is available |
2699 | or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case, | |
2700 | a font name pattern is generated from FAMILY and REGISTRY. */ | |
2701 | ||
2702 | int | |
2703 | face_font_available_p (f, pattern) | |
2704 | struct frame *f; | |
2705 | Lisp_Object pattern; | |
2706 | { | |
2707 | Lisp_Object fonts; | |
2708 | ||
2709 | if (! STRINGP (pattern)) | |
2710 | { | |
2711 | Lisp_Object family, registry; | |
2712 | char *family_str, *registry_str, *pattern_str; | |
2713 | ||
2714 | CHECK_CONS (pattern); | |
2715 | family = XCAR (pattern); | |
2716 | if (NILP (family)) | |
2717 | family_str = "*"; | |
2718 | else | |
2719 | { | |
2720 | CHECK_STRING (family); | |
2721 | family_str = (char *) SDATA (family); | |
2722 | } | |
2723 | registry = XCDR (pattern); | |
2724 | if (NILP (registry)) | |
2725 | registry_str = "*"; | |
2726 | else | |
2727 | { | |
2728 | CHECK_STRING (registry); | |
2729 | registry_str = (char *) SDATA (registry); | |
2730 | } | |
2731 | ||
2732 | pattern_str = (char *) alloca (strlen (family_str) | |
2733 | + strlen (registry_str) | |
2734 | + 10); | |
2735 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2736 | strcat (pattern_str, family_str); | |
2737 | strcat (pattern_str, "-*-"); | |
2738 | strcat (pattern_str, registry_str); | |
2739 | if (!index (registry_str, '-')) | |
2740 | { | |
2741 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2742 | strcat (pattern_str, "-*"); | |
2743 | else | |
2744 | strcat (pattern_str, "*-*"); | |
2745 | } | |
2746 | pattern = build_string (pattern_str); | |
2747 | } | |
2748 | ||
2749 | /* Get the list of fonts matching PATTERN. */ | |
2750 | #ifdef WINDOWSNT | |
2751 | BLOCK_INPUT; | |
2752 | fonts = w32_list_fonts (f, pattern, 0, 1); | |
2753 | UNBLOCK_INPUT; | |
2754 | #else | |
2755 | fonts = x_list_fonts (f, pattern, -1, 1); | |
2756 | #endif | |
2757 | return XINT (Flength (fonts)); | |
2758 | } | |
2759 | ||
2760 | ||
82641697 GM |
2761 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2762 | using comparison function CMPFN. Value is the number of fonts | |
2763 | found. If value is non-zero, *FONTS is set to a vector of | |
2764 | font_name structures allocated from the heap containing matching | |
2765 | fonts. Each element of *FONTS contains a name member that is also | |
2766 | allocated from the heap. Font names in these structures are split | |
2767 | into fields. Use free_font_names to free such an array. */ | |
2768 | ||
2769 | static int | |
2770 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2771 | struct frame *f; | |
2772 | char *pattern; | |
2773 | int (*cmpfn) P_ ((const void *, const void *)); | |
2774 | struct font_name **fonts; | |
2775 | { | |
2776 | int nfonts; | |
178c5d9c | 2777 | |
82641697 | 2778 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2779 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2780 | if (INTEGERP (Vfont_list_limit)) |
2781 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2782 | |
ee5be7c3 JD |
2783 | *fonts = NULL; |
2784 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2785 | |
2786 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2787 | fonts were found, make sure to set *FONTS to null. */ |
2788 | if (nfonts) | |
2789 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2790 | else if (*fonts) |
82641697 GM |
2791 | { |
2792 | xfree (*fonts); | |
2793 | *fonts = NULL; | |
2794 | } | |
2795 | ||
2796 | return nfonts; | |
2797 | } | |
2798 | ||
2799 | ||
2800 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2801 | strcmp. Sort order is given by the global variable | |
2802 | font_sort_order. Font names are sorted so that, everything else | |
2803 | being equal, fonts with a resolution closer to that of the frame on | |
2804 | which they are used are listed first. The global variable | |
2805 | font_frame is the frame on which we operate. */ | |
2806 | ||
2807 | static int | |
2808 | cmp_font_names (a, b) | |
2809 | const void *a, *b; | |
2810 | { | |
2811 | struct font_name *x = (struct font_name *) a; | |
2812 | struct font_name *y = (struct font_name *) b; | |
2813 | int cmp; | |
2814 | ||
2815 | /* All strings have been converted to lower-case by split_font_name, | |
2816 | so we can use strcmp here. */ | |
2817 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2818 | if (cmp == 0) | |
2819 | { | |
2820 | int i; | |
178c5d9c | 2821 | |
82641697 GM |
2822 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2823 | { | |
2824 | int j = font_sort_order[i]; | |
2825 | cmp = x->numeric[j] - y->numeric[j]; | |
2826 | } | |
2827 | ||
2828 | if (cmp == 0) | |
2829 | { | |
2830 | /* Everything else being equal, we prefer fonts with an | |
2831 | y-resolution closer to that of the frame. */ | |
2832 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2833 | int x_resy = x->numeric[XLFD_RESY]; | |
2834 | int y_resy = y->numeric[XLFD_RESY]; | |
1ea40aa2 | 2835 | cmp = eabs (resy - x_resy) - eabs (resy - y_resy); |
82641697 GM |
2836 | } |
2837 | } | |
2838 | ||
2839 | return cmp; | |
2840 | } | |
2841 | ||
2842 | ||
8f924df7 KH |
2843 | /* Get a sorted list of fonts matching PATTERN on frame F. If PATTERN |
2844 | is nil, list fonts matching FAMILY and REGISTRY. FAMILY is a | |
2845 | family name string or nil. REGISTRY is a registry name string. | |
2846 | Set *FONTS to a vector of font_name structures allocated from the | |
2847 | heap containing the fonts found. Value is the number of fonts | |
2848 | found. */ | |
82641697 GM |
2849 | |
2850 | static int | |
32fcc231 | 2851 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2852 | struct frame *f; |
39506348 | 2853 | Lisp_Object pattern, family, registry; |
82641697 GM |
2854 | struct font_name **fonts; |
2855 | { | |
39506348 KH |
2856 | char *pattern_str, *family_str, *registry_str; |
2857 | ||
2858 | if (NILP (pattern)) | |
82641697 | 2859 | { |
d5db4077 KR |
2860 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2861 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2862 | |
39506348 | 2863 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2864 | + strlen (registry_str) |
2865 | + 10); | |
2866 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2867 | strcat (pattern_str, family_str); | |
2868 | strcat (pattern_str, "-*-"); | |
2869 | strcat (pattern_str, registry_str); | |
2870 | if (!index (registry_str, '-')) | |
2871 | { | |
2872 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2873 | strcat (pattern_str, "-*"); | |
2874 | else | |
2875 | strcat (pattern_str, "*-*"); | |
2876 | } | |
82641697 | 2877 | } |
39506348 | 2878 | else |
d5db4077 | 2879 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2880 | |
39506348 | 2881 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2882 | } |
2883 | ||
2884 | ||
8e1b21a7 KH |
2885 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2886 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2887 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2888 | freed. */ | |
2889 | ||
2890 | static struct font_name * | |
2891 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2892 | struct font_name *fonts1, *fonts2; | |
2893 | int nfonts1, nfonts2; | |
2894 | { | |
2895 | int new_nfonts = nfonts1 + nfonts2; | |
2896 | struct font_name *new_fonts; | |
2897 | ||
2898 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2899 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2900 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2901 | xfree (fonts1); | |
2902 | xfree (fonts2); | |
2903 | return new_fonts; | |
2904 | } | |
2905 | ||
2906 | ||
32fcc231 GM |
2907 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2908 | ||
af53b43c | 2909 | If PATTERN is non-nil, list fonts matching that pattern. |
32fcc231 | 2910 | |
154c2d39 KH |
2911 | If REGISTRY is non-nil, it is a list of registry (and encoding) |
2912 | names. Return fonts with those registries and the alternative | |
2913 | registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2914 | |
32fcc231 GM |
2915 | If REGISTRY is nil return fonts of any registry. |
2916 | ||
2917 | Set *FONTS to a vector of font_name structures allocated from the | |
2918 | heap containing the fonts found. Value is the number of fonts | |
2919 | found. */ | |
2920 | ||
2921 | static int | |
2922 | font_list (f, pattern, family, registry, fonts) | |
2923 | struct frame *f; | |
2924 | Lisp_Object pattern, family, registry; | |
2925 | struct font_name **fonts; | |
2926 | { | |
154c2d39 KH |
2927 | int nfonts; |
2928 | int reg_prio; | |
2929 | int i; | |
2930 | ||
2931 | if (NILP (registry)) | |
2932 | return font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2933 | |
154c2d39 | 2934 | for (reg_prio = 0, nfonts = 0; CONSP (registry); registry = XCDR (registry)) |
32fcc231 | 2935 | { |
154c2d39 KH |
2936 | Lisp_Object elt, alter; |
2937 | int nfonts2; | |
2938 | struct font_name *fonts2; | |
32fcc231 | 2939 | |
154c2d39 KH |
2940 | elt = XCAR (registry); |
2941 | alter = Fassoc (elt, Vface_alternative_font_registry_alist); | |
2942 | if (NILP (alter)) | |
2943 | alter = Fcons (elt, Qnil); | |
2944 | for (; CONSP (alter); alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2945 | { |
154c2d39 KH |
2946 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), &fonts2); |
2947 | if (nfonts2 > 0) | |
2948 | { | |
2949 | if (reg_prio > 0) | |
8e1b21a7 KH |
2950 | for (i = 0; i < nfonts2; i++) |
2951 | fonts2[i].registry_priority = reg_prio; | |
154c2d39 KH |
2952 | if (nfonts > 0) |
2953 | *fonts = concat_font_list (*fonts, nfonts, fonts2, nfonts2); | |
2954 | else | |
2955 | *fonts = fonts2; | |
2956 | nfonts += nfonts2; | |
2957 | } | |
32fcc231 GM |
2958 | } |
2959 | } | |
2960 | ||
2961 | return nfonts; | |
2962 | } | |
2963 | ||
2964 | ||
82641697 | 2965 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2966 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2967 | entries. */ |
2968 | ||
2969 | static void | |
2970 | remove_duplicates (list) | |
2971 | Lisp_Object list; | |
2972 | { | |
2973 | Lisp_Object tail = list; | |
178c5d9c | 2974 | |
82641697 GM |
2975 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2976 | { | |
2977 | Lisp_Object next = XCDR (tail); | |
2978 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2979 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2980 | else |
2981 | tail = XCDR (tail); | |
2982 | } | |
2983 | } | |
2984 | ||
2985 | ||
92610620 | 2986 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2987 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2988 | If FAMILY is omitted or nil, list all families. |
2989 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2990 | `?' and `*'. | |
2991 | If FRAME is omitted or nil, use the selected frame. | |
2992 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2993 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2994 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2995 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2996 | width, weight and slant of the font. These symbols are the same as for | |
2997 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2998 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2999 | giving the registry and encoding of the font. | |
3000 | The result list is sorted according to the current setting of | |
7ee72033 MB |
3001 | the face font sort order. */) |
3002 | (family, frame) | |
82641697 GM |
3003 | Lisp_Object family, frame; |
3004 | { | |
3005 | struct frame *f = check_x_frame (frame); | |
3006 | struct font_name *fonts; | |
3007 | int i, nfonts; | |
3008 | Lisp_Object result; | |
3009 | struct gcpro gcpro1; | |
82641697 | 3010 | |
39506348 | 3011 | if (!NILP (family)) |
b7826503 | 3012 | CHECK_STRING (family); |
178c5d9c | 3013 | |
82641697 GM |
3014 | result = Qnil; |
3015 | GCPRO1 (result); | |
39506348 | 3016 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
3017 | for (i = nfonts - 1; i >= 0; --i) |
3018 | { | |
057df17c GM |
3019 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
3020 | char *tem; | |
82641697 | 3021 | |
82641697 GM |
3022 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
3023 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
3024 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
3025 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
3026 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
3027 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
3028 | tem = build_font_name (fonts + i); |
3029 | ASET (v, 6, build_string (tem)); | |
3030 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
3031 | fonts[i].fields[XLFD_ENCODING]); | |
3032 | ASET (v, 7, build_string (tem)); | |
3033 | xfree (tem); | |
178c5d9c | 3034 | |
82641697 | 3035 | result = Fcons (v, result); |
82641697 GM |
3036 | } |
3037 | ||
3038 | remove_duplicates (result); | |
3039 | free_font_names (fonts, nfonts); | |
3040 | UNGCPRO; | |
3041 | return result; | |
3042 | } | |
3043 | ||
3044 | ||
3045 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
3046 | 0, 1, 0, | |
7ee72033 | 3047 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
3048 | If FRAME is omitted or nil, use the selected frame. |
3049 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
3050 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
3051 | are fixed-pitch. */) |
3052 | (frame) | |
82641697 GM |
3053 | Lisp_Object frame; |
3054 | { | |
3055 | struct frame *f = check_x_frame (frame); | |
3056 | int nfonts, i; | |
3057 | struct font_name *fonts; | |
3058 | Lisp_Object result; | |
3059 | struct gcpro gcpro1; | |
aed13378 | 3060 | int count = SPECPDL_INDEX (); |
178c5d9c | 3061 | |
ee5be7c3 JD |
3062 | /* Let's consider all fonts. */ |
3063 | specbind (intern ("font-list-limit"), make_number (-1)); | |
3064 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 3065 | |
82641697 GM |
3066 | result = Qnil; |
3067 | GCPRO1 (result); | |
3068 | for (i = nfonts - 1; i >= 0; --i) | |
3069 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
3070 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
3071 | result); | |
3072 | ||
3073 | remove_duplicates (result); | |
3074 | free_font_names (fonts, nfonts); | |
3075 | UNGCPRO; | |
057df17c | 3076 | return unbind_to (count, result); |
82641697 GM |
3077 | } |
3078 | ||
3079 | ||
3080 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 3081 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
3082 | If optional arguments FACE and FRAME are specified, return only fonts |
3083 | the same size as FACE on FRAME. | |
3084 | PATTERN is a string, perhaps with wildcard characters; | |
3085 | the * character matches any substring, and | |
3086 | the ? character matches any single character. | |
3087 | PATTERN is case-insensitive. | |
3088 | FACE is a face name--a symbol. | |
3089 | ||
3090 | The return value is a list of strings, suitable as arguments to | |
3091 | set-face-font. | |
3092 | ||
3093 | Fonts Emacs can't use may or may not be excluded | |
3094 | even if they match PATTERN and FACE. | |
3095 | The optional fourth argument MAXIMUM sets a limit on how many | |
3096 | fonts to match. The first MAXIMUM fonts are reported. | |
3097 | The optional fifth argument WIDTH, if specified, is a number of columns | |
3098 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
3099 | the WIDTH times as wide as FACE on FRAME. */) |
3100 | (pattern, face, frame, maximum, width) | |
82641697 GM |
3101 | Lisp_Object pattern, face, frame, maximum, width; |
3102 | { | |
3103 | struct frame *f; | |
3104 | int size; | |
3105 | int maxnames; | |
3106 | ||
3107 | check_x (); | |
b7826503 | 3108 | CHECK_STRING (pattern); |
178c5d9c | 3109 | |
82641697 | 3110 | if (NILP (maximum)) |
ee5be7c3 | 3111 | maxnames = -1; |
82641697 GM |
3112 | else |
3113 | { | |
b7826503 | 3114 | CHECK_NATNUM (maximum); |
82641697 GM |
3115 | maxnames = XINT (maximum); |
3116 | } | |
3117 | ||
3118 | if (!NILP (width)) | |
b7826503 | 3119 | CHECK_NUMBER (width); |
82641697 GM |
3120 | |
3121 | /* We can't simply call check_x_frame because this function may be | |
3122 | called before any frame is created. */ | |
3123 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 3124 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
3125 | { |
3126 | /* Perhaps we have not yet created any frame. */ | |
3127 | f = NULL; | |
3128 | face = Qnil; | |
3129 | } | |
3130 | ||
3131 | /* Determine the width standard for comparison with the fonts we find. */ | |
3132 | ||
3133 | if (NILP (face)) | |
3134 | size = 0; | |
3135 | else | |
3136 | { | |
3137 | /* This is of limited utility since it works with character | |
3138 | widths. Keep it for compatibility. --gerd. */ | |
000fc2b1 | 3139 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
3140 | struct face *face = (face_id < 0 |
3141 | ? NULL | |
3142 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 3143 | |
b5de343d | 3144 | if (face && face->font) |
c3cee013 | 3145 | size = FONT_WIDTH (face->font); |
82641697 | 3146 | else |
c623bbd3 | 3147 | size = FONT_WIDTH (FRAME_FONT (f)); /* FRAME_COLUMN_WIDTH (f) */ |
82641697 GM |
3148 | |
3149 | if (!NILP (width)) | |
3150 | size *= XINT (width); | |
3151 | } | |
3152 | ||
3153 | { | |
3154 | Lisp_Object args[2]; | |
3155 | ||
3156 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
3157 | if (f == NULL) | |
3158 | /* We don't have to check fontsets. */ | |
3159 | return args[0]; | |
3160 | args[1] = list_fontsets (f, pattern, size); | |
3161 | return Fnconc (2, args); | |
3162 | } | |
3163 | } | |
3164 | ||
c3cee013 | 3165 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3166 | |
3167 | ||
3168 | \f | |
3169 | /*********************************************************************** | |
3170 | Lisp Faces | |
3171 | ***********************************************************************/ | |
3172 | ||
a08332c0 GM |
3173 | /* Access face attributes of face LFACE, a Lisp vector. */ |
3174 | ||
3175 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
3176 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
3177 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
3178 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
3179 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
3180 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
3181 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
3182 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
3183 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
3184 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
3185 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
3186 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
3187 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
3188 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
3189 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
3190 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
763bc839 | 3191 | #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX) |
82641697 GM |
3192 | |
3193 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
3194 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
3195 | ||
3196 | #define LFACEP(LFACE) \ | |
3197 | (VECTORP (LFACE) \ | |
3198 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 3199 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 3200 | |
178c5d9c | 3201 | |
82641697 GM |
3202 | #if GLYPH_DEBUG |
3203 | ||
3204 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
3205 | ||
3206 | static void | |
3207 | check_lface_attrs (attrs) | |
3208 | Lisp_Object *attrs; | |
3209 | { | |
3210 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2ff10663 | 3211 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
82641697 GM |
3212 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
3213 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2ff10663 | 3214 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
82641697 | 3215 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
a08332c0 | 3216 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2ff10663 | 3217 | || IGNORE_DEFFACE_P (attrs[LFACE_AVGWIDTH_INDEX]) |
a08332c0 | 3218 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); |
82641697 | 3219 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2ff10663 | 3220 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3221 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3222 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3223 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 | 3224 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2ff10663 | 3225 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
82641697 GM |
3226 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
3227 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2ff10663 | 3228 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
82641697 GM |
3229 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
3230 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2ff10663 | 3231 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
82641697 GM |
3232 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
3233 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3234 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2ff10663 | 3235 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
82641697 GM |
3236 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
3237 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3238 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2ff10663 | 3239 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
82641697 GM |
3240 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
3241 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3242 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2ff10663 | 3243 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
82641697 GM |
3244 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
3245 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3246 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3247 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3248 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2ff10663 | 3249 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
82641697 GM |
3250 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
3251 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2ff10663 | 3252 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
82641697 GM |
3253 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
3254 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2ff10663 | 3255 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
82641697 | 3256 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
2c20458f | 3257 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2ff10663 | 3258 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
2c20458f MB |
3259 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
3260 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3261 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3262 | #ifdef HAVE_WINDOW_SYSTEM |
3263 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2ff10663 | 3264 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
82641697 | 3265 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
fef04523 | 3266 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3267 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
2ff10663 | 3268 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
d2cafc8c | 3269 | || NILP (attrs[LFACE_FONT_INDEX]) |
f4d3bea3 KH |
3270 | #ifdef USE_FONT_BACKEND |
3271 | || FONT_OBJECT_P (attrs[LFACE_FONT_INDEX]) | |
3272 | #endif /* USE_FONT_BACKEND */ | |
d2cafc8c | 3273 | || STRINGP (attrs[LFACE_FONT_INDEX])); |
763bc839 KH |
3274 | xassert (UNSPECIFIEDP (attrs[LFACE_FONTSET_INDEX]) |
3275 | || STRINGP (attrs[LFACE_FONTSET_INDEX])); | |
82641697 GM |
3276 | #endif |
3277 | } | |
3278 | ||
3279 | ||
3280 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3281 | ||
3282 | static void | |
3283 | check_lface (lface) | |
3284 | Lisp_Object lface; | |
3285 | { | |
3286 | if (!NILP (lface)) | |
3287 | { | |
3288 | xassert (LFACEP (lface)); | |
3289 | check_lface_attrs (XVECTOR (lface)->contents); | |
3290 | } | |
3291 | } | |
3292 | ||
3293 | #else /* GLYPH_DEBUG == 0 */ | |
3294 | ||
3295 | #define check_lface_attrs(attrs) (void) 0 | |
3296 | #define check_lface(lface) (void) 0 | |
3297 | ||
3298 | #endif /* GLYPH_DEBUG == 0 */ | |
3299 | ||
3300 | ||
a0a23346 MB |
3301 | \f |
3302 | /* Face-merge cycle checking. */ | |
3303 | ||
3304 | /* A `named merge point' is simply a point during face-merging where we | |
3305 | look up a face by name. We keep a stack of which named lookups we're | |
3306 | currently processing so that we can easily detect cycles, using a | |
3307 | linked- list of struct named_merge_point structures, typically | |
3308 | allocated on the stack frame of the named lookup functions which are | |
3309 | active (so no consing is required). */ | |
3310 | struct named_merge_point | |
3311 | { | |
3312 | Lisp_Object face_name; | |
3313 | struct named_merge_point *prev; | |
3314 | }; | |
3315 | ||
3316 | ||
3317 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
3318 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
6e87ac8f MB |
3319 | FACE_NAME, as the head of the linked list pointed to by |
3320 | NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 MB |
3321 | |
3322 | static INLINE int | |
3323 | push_named_merge_point (struct named_merge_point *new_named_merge_point, | |
3324 | Lisp_Object face_name, | |
3325 | struct named_merge_point **named_merge_points) | |
3326 | { | |
3327 | struct named_merge_point *prev; | |
3328 | ||
3329 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
3330 | if (EQ (face_name, prev->face_name)) | |
6e87ac8f | 3331 | return 0; |
a0a23346 MB |
3332 | |
3333 | new_named_merge_point->face_name = face_name; | |
3334 | new_named_merge_point->prev = *named_merge_points; | |
3335 | ||
3336 | *named_merge_points = new_named_merge_point; | |
3337 | ||
3338 | return 1; | |
3339 | } | |
3340 | ||
3341 | \f | |
3342 | ||
2ed82a63 | 3343 | #if 0 /* Seems to be unused. */ |
91fd98fc KL |
3344 | static Lisp_Object |
3345 | internal_resolve_face_name (nargs, args) | |
3346 | int nargs; | |
3347 | Lisp_Object *args; | |
3348 | { | |
2ed82a63 | 3349 | return Fget (args[0], args[1]); |
91fd98fc KL |
3350 | } |
3351 | ||
3352 | static Lisp_Object | |
3353 | resolve_face_name_error (ignore) | |
3354 | Lisp_Object ignore; | |
3355 | { | |
3356 | return Qnil; | |
3357 | } | |
2ed82a63 | 3358 | #endif |
a0a23346 | 3359 | |
39506348 | 3360 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
3361 | to make it a symbol. If FACE_NAME is an alias for another face, |
3362 | return that face's name. | |
3363 | ||
3364 | Return default face in case of errors. */ | |
c7ae3284 GM |
3365 | |
3366 | static Lisp_Object | |
d1bf13b3 | 3367 | resolve_face_name (face_name, signal_p) |
c7ae3284 | 3368 | Lisp_Object face_name; |
d1bf13b3 | 3369 | int signal_p; |
c7ae3284 | 3370 | { |
d1bf13b3 KS |
3371 | Lisp_Object orig_face; |
3372 | Lisp_Object tortoise, hare; | |
178c5d9c | 3373 | |
c7ae3284 | 3374 | if (STRINGP (face_name)) |
d5db4077 | 3375 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3376 | |
d1bf13b3 KS |
3377 | if (NILP (face_name) || !SYMBOLP (face_name)) |
3378 | return face_name; | |
3379 | ||
3380 | orig_face = face_name; | |
3381 | tortoise = hare = face_name; | |
3382 | ||
3383 | while (1) | |
c7ae3284 | 3384 | { |
d1bf13b3 KS |
3385 | face_name = hare; |
3386 | hare = Fget (hare, Qface_alias); | |
3387 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 3388 | break; |
d1bf13b3 KS |
3389 | |
3390 | face_name = hare; | |
3391 | hare = Fget (hare, Qface_alias); | |
3392 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 3393 | break; |
d1bf13b3 KS |
3394 | |
3395 | tortoise = Fget (tortoise, Qface_alias); | |
3396 | if (EQ (hare, tortoise)) | |
3397 | { | |
3398 | if (signal_p) | |
8009eb44 | 3399 | xsignal1 (Qcircular_list, orig_face); |
d1bf13b3 KS |
3400 | return Qdefault; |
3401 | } | |
c7ae3284 GM |
3402 | } |
3403 | ||
3404 | return face_name; | |
3405 | } | |
3406 | ||
3407 | ||
82641697 | 3408 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3409 | return the definition for new frames. FACE_NAME may be a string or |
3410 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3411 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3412 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3413 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3414 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3415 | name. */ | |
82641697 GM |
3416 | |
3417 | static INLINE Lisp_Object | |
3418 | lface_from_face_name (f, face_name, signal_p) | |
3419 | struct frame *f; | |
3420 | Lisp_Object face_name; | |
3421 | int signal_p; | |
3422 | { | |
c7ae3284 | 3423 | Lisp_Object lface; |
82641697 | 3424 | |
d1bf13b3 | 3425 | face_name = resolve_face_name (face_name, signal_p); |
92610620 | 3426 | |
82641697 GM |
3427 | if (f) |
3428 | lface = assq_no_quit (face_name, f->face_alist); | |
3429 | else | |
3430 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3431 | ||
3432 | if (CONSP (lface)) | |
3433 | lface = XCDR (lface); | |
3434 | else if (signal_p) | |
3435 | signal_error ("Invalid face", face_name); | |
3436 | ||
3437 | check_lface (lface); | |
3438 | return lface; | |
3439 | } | |
3440 | ||
3441 | ||
e7d7fd8c MB |
3442 | /* Get face attributes of face FACE_NAME from frame-local faces on |
3443 | frame F. Store the resulting attributes in ATTRS which must point | |
3444 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3445 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3446 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3447 | ||
3448 | static INLINE int | |
3449 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3450 | struct frame *f; | |
3451 | Lisp_Object face_name; | |
3452 | Lisp_Object *attrs; | |
3453 | int signal_p; | |
3454 | { | |
3455 | Lisp_Object lface; | |
3456 | int success_p; | |
3457 | ||
3458 | lface = lface_from_face_name (f, face_name, signal_p); | |
3459 | if (!NILP (lface)) | |
3460 | { | |
3461 | bcopy (XVECTOR (lface)->contents, attrs, | |
3462 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3463 | success_p = 1; | |
3464 | } | |
3465 | else | |
3466 | success_p = 0; | |
3467 | ||
3468 | return success_p; | |
3469 | } | |
3470 | ||
3471 | ||
82641697 GM |
3472 | /* Non-zero if all attributes in face attribute vector ATTRS are |
3473 | specified, i.e. are non-nil. */ | |
3474 | ||
3475 | static int | |
3476 | lface_fully_specified_p (attrs) | |
3477 | Lisp_Object *attrs; | |
3478 | { | |
3479 | int i; | |
3480 | ||
3481 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3482 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
8f924df7 | 3483 | && i != LFACE_AVGWIDTH_INDEX && i != LFACE_FONTSET_INDEX) |
2ff10663 | 3484 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i])) |
6b61353c KH |
3485 | #ifdef MAC_OS |
3486 | /* MAC_TODO: No stipple support on Mac OS yet, this index is | |
3487 | always unspecified. */ | |
3488 | && i != LFACE_STIPPLE_INDEX | |
3489 | #endif | |
3490 | ) | |
6288c62f | 3491 | break; |
82641697 GM |
3492 | |
3493 | return i == LFACE_VECTOR_SIZE; | |
3494 | } | |
3495 | ||
c3cee013 | 3496 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3497 | |
39506348 KH |
3498 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3499 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3500 | unspecified attributes of LFACE. The exception is `font' | |
3501 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3502 | ||
3503 | If FONTNAME is not available on frame F, | |
3504 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3505 | If the fullname is not in a valid XLFD format, | |
3506 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3507 | in LFACE and return 1. | |
3508 | Otherwise, return 1. */ | |
178c5d9c | 3509 | |
82641697 | 3510 | static int |
39506348 | 3511 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3512 | struct frame *f; |
3513 | Lisp_Object lface; | |
39506348 | 3514 | Lisp_Object fontname; |
3221576b | 3515 | int force_p, may_fail_p; |
82641697 GM |
3516 | { |
3517 | struct font_name font; | |
3518 | char *buffer; | |
3519 | int pt; | |
39506348 KH |
3520 | int have_xlfd_p; |
3521 | int fontset; | |
d5db4077 | 3522 | char *font_name = SDATA (fontname); |
39506348 | 3523 | struct font_info *font_info; |
82641697 | 3524 | |
39506348 KH |
3525 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3526 | fontset = fs_query_fontset (fontname, 0); | |
426b2119 | 3527 | |
25b1546d | 3528 | if (fontset > 0) |
d5db4077 | 3529 | font_name = SDATA (fontset_ascii (fontset)); |
25b1546d KH |
3530 | else if (fontset == 0) |
3531 | { | |
3532 | if (may_fail_p) | |
3533 | return 0; | |
3534 | abort (); | |
3535 | } | |
39506348 KH |
3536 | |
3537 | /* Check if FONT_NAME is surely available on the system. Usually | |
3538 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3539 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3540 | caching it now is not futail because we anyway load the font | |
3541 | later. */ | |
3542 | BLOCK_INPUT; | |
81b39386 | 3543 | font_info = FS_LOAD_FONT (f, font_name); |
39506348 | 3544 | UNBLOCK_INPUT; |
82641697 | 3545 | |
39506348 | 3546 | if (!font_info) |
3221576b GM |
3547 | { |
3548 | if (may_fail_p) | |
3549 | return 0; | |
39506348 | 3550 | abort (); |
3221576b | 3551 | } |
39506348 KH |
3552 | |
3553 | font.name = STRDUPA (font_info->full_name); | |
3554 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3555 | |
82641697 | 3556 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3557 | new frames would never take effect. If we couldn't get a font |
3558 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3559 | |
82641697 GM |
3560 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3561 | { | |
39506348 KH |
3562 | Lisp_Object val; |
3563 | if (have_xlfd_p) | |
3564 | { | |
3565 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3566 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3567 | + 2); | |
3568 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3569 | font.fields[XLFD_FAMILY]); | |
3570 | val = build_string (buffer); | |
3571 | } | |
3572 | else | |
3573 | val = build_string ("*"); | |
3574 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3575 | } |
3576 | ||
3577 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3578 | { | |
39506348 KH |
3579 | if (have_xlfd_p) |
3580 | pt = xlfd_point_size (f, &font); | |
3581 | else | |
3582 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3583 | xassert (pt > 0); |
3584 | LFACE_HEIGHT (lface) = make_number (pt); | |
3585 | } | |
3586 | ||
3587 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3588 | LFACE_SWIDTH (lface) |
3589 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3590 | |
a08332c0 GM |
3591 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3592 | LFACE_AVGWIDTH (lface) | |
3593 | = (have_xlfd_p | |
3594 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3595 | : Qunspecified); | |
3596 | ||
82641697 | 3597 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3598 | LFACE_WEIGHT (lface) |
3599 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3600 | |
3601 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3602 | LFACE_SLANT (lface) |
3603 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3604 | |
21228b3d | 3605 | if (fontset > 0) |
763bc839 KH |
3606 | { |
3607 | LFACE_FONT (lface) = build_string (font_info->full_name); | |
3608 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3609 | } | |
3610 | else | |
7f8005cd KH |
3611 | { |
3612 | LFACE_FONT (lface) = fontname; | |
3613 | fontset | |
3614 | = new_fontset_from_font_name (build_string (font_info->full_name)); | |
3615 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3616 | } | |
82641697 GM |
3617 | return 1; |
3618 | } | |
d12d0a9b | 3619 | |
f4d3bea3 KH |
3620 | #ifdef USE_FONT_BACKEND |
3621 | /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT and | |
3622 | FONTSET. If FORCE_P is zero, set only unspecified attributes of | |
3623 | LFACE. The exceptions are `font' and `fontset' attributes. They | |
3624 | are set regardless of FORCE_P. */ | |
3625 | ||
3626 | static void | |
3627 | set_lface_from_font_and_fontset (f, lface, font_object, fontset, force_p) | |
3628 | struct frame *f; | |
3629 | Lisp_Object lface, font_object; | |
3630 | int fontset; | |
3631 | int force_p; | |
3632 | { | |
3633 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
3634 | Lisp_Object entity = font->entity; | |
3635 | Lisp_Object val; | |
3636 | ||
3637 | /* Set attributes only if unspecified, otherwise face defaults for | |
3638 | new frames would never take effect. If the font doesn't have a | |
3639 | specific property, set a normal value for that. */ | |
3640 | ||
3641 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
3642 | { | |
3643 | Lisp_Object foundry = AREF (entity, FONT_FOUNDRY_INDEX); | |
3644 | Lisp_Object family = AREF (entity, FONT_FAMILY_INDEX); | |
3645 | ||
3646 | if (! NILP (foundry)) | |
3647 | { | |
3648 | if (! NILP (family)) | |
3649 | val = concat3 (SYMBOL_NAME (foundry), build_string ("-"), | |
3650 | SYMBOL_NAME (family)); | |
3651 | else | |
3652 | val = concat2 (SYMBOL_NAME (foundry), build_string ("-*")); | |
3653 | } | |
3654 | else | |
3655 | { | |
3656 | if (! NILP (family)) | |
3657 | val = SYMBOL_NAME (family); | |
3658 | else | |
3659 | val = build_string ("*"); | |
3660 | } | |
3661 | LFACE_FAMILY (lface) = val; | |
3662 | } | |
3663 | ||
3664 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3665 | { | |
3666 | int pt = pixel_point_size (f, font->pixel_size * 10); | |
3667 | ||
3668 | xassert (pt > 0); | |
3669 | LFACE_HEIGHT (lface) = make_number (pt); | |
3670 | } | |
3671 | ||
3672 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) | |
3673 | LFACE_AVGWIDTH (lface) = make_number (font->font.average_width); | |
3674 | ||
3675 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
3676 | { | |
3677 | Lisp_Object weight = font_symbolic_weight (entity); | |
3678 | ||
3679 | val = NILP (weight) ? Qnormal : face_symbolic_weight (weight); | |
3680 | LFACE_WEIGHT (lface) = ! NILP (val) ? val : weight; | |
3681 | } | |
3682 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
3683 | { | |
3684 | Lisp_Object slant = font_symbolic_slant (entity); | |
3685 | ||
3686 | val = NILP (slant) ? Qnormal : face_symbolic_slant (slant); | |
3687 | LFACE_SLANT (lface) = ! NILP (val) ? val : slant; | |
3688 | } | |
3689 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
3690 | { | |
3691 | Lisp_Object width = font_symbolic_width (entity); | |
3692 | ||
3693 | val = NILP (width) ? Qnormal : face_symbolic_swidth (width); | |
3694 | LFACE_SWIDTH (lface) = ! NILP (val) ? val : width; | |
3695 | } | |
3696 | ||
7c0b3f4d KH |
3697 | LFACE_FONT (lface) = make_unibyte_string (font->font.full_name, |
3698 | strlen (font->font.full_name)); | |
f4d3bea3 KH |
3699 | LFACE_FONTSET (lface) = fontset_name (fontset); |
3700 | } | |
3701 | #endif /* USE_FONT_BACKEND */ | |
3702 | ||
c3cee013 | 3703 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3704 | |
3705 | ||
2c20458f MB |
3706 | /* Merges the face height FROM with the face height TO, and returns the |
3707 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3708 | returned instead. FROM and TO may be either absolute face heights or |
3709 | `relative' heights; the returned value is always an absolute height | |
3710 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3711 | will be protected from garbage-collection if this function makes a | |
3712 | call into lisp. */ | |
2c20458f MB |
3713 | |
3714 | Lisp_Object | |
e1e419ec RS |
3715 | merge_face_heights (from, to, invalid) |
3716 | Lisp_Object from, to, invalid; | |
2c20458f | 3717 | { |
cdfaafa9 | 3718 | Lisp_Object result = invalid; |
2c20458f MB |
3719 | |
3720 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3721 | /* FROM is absolute, just use it as is. */ |
3722 | result = from; | |
3723 | else if (FLOATP (from)) | |
3724 | /* FROM is a scale, use it to adjust TO. */ | |
3725 | { | |
3726 | if (INTEGERP (to)) | |
3727 | /* relative X absolute => absolute */ | |
c319cf24 | 3728 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3729 | else if (FLOATP (to)) |
3730 | /* relative X relative => relative */ | |
3731 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
3732 | else if (UNSPECIFIEDP (to)) |
3733 | result = from; | |
2c20458f | 3734 | } |
2c20458f | 3735 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3736 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3737 | { |
3738 | /* Call function with current height as argument. | |
3739 | From is the new height. */ | |
cdfaafa9 | 3740 | Lisp_Object args[2]; |
2c20458f MB |
3741 | |
3742 | args[0] = from; | |
3743 | args[1] = to; | |
cdfaafa9 | 3744 | result = safe_call (2, args); |
2c20458f | 3745 | |
cdfaafa9 MB |
3746 | /* Ensure that if TO was absolute, so is the result. */ |
3747 | if (INTEGERP (to) && !INTEGERP (result)) | |
3748 | result = invalid; | |
2c20458f MB |
3749 | } |
3750 | ||
cdfaafa9 | 3751 | return result; |
2c20458f MB |
3752 | } |
3753 | ||
3754 | ||
3755 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 | 3756 | store the resulting attributes in TO, which must be already be |
e7d7fd8c MB |
3757 | completely specified and contain only absolute attributes. Every |
3758 | specified attribute of FROM overrides the corresponding attribute of | |
3759 | TO; relative attributes in FROM are merged with the absolute value in | |
3760 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect | |
3761 | loops in face inheritance; it should be 0 when called from other | |
3762 | places. */ | |
82641697 GM |
3763 | |
3764 | static INLINE void | |
a0a23346 | 3765 | merge_face_vectors (f, from, to, named_merge_points) |
2c20458f | 3766 | struct frame *f; |
82641697 | 3767 | Lisp_Object *from, *to; |
a0a23346 | 3768 | struct named_merge_point *named_merge_points; |
82641697 GM |
3769 | { |
3770 | int i; | |
2c20458f MB |
3771 | |
3772 | /* If FROM inherits from some other faces, merge their attributes into | |
3773 | TO before merging FROM's direct attributes. Note that an :inherit | |
3774 | attribute of `unspecified' is the same as one of nil; we never | |
3775 | merge :inherit attributes, so nil is more correct, but lots of | |
3776 | other code uses `unspecified' as a generic value for face attributes. */ | |
3777 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3778 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 3779 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 3780 | |
87188200 MB |
3781 | /* If TO specifies a :font attribute, and FROM specifies some |
3782 | font-related attribute, we need to clear TO's :font attribute | |
3783 | (because it will be inconsistent with whatever FROM specifies, and | |
3784 | FROM takes precedence). */ | |
3785 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3786 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3787 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3788 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3789 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3790 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3791 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3792 | to[LFACE_FONT_INDEX] = Qnil; |
3793 | ||
82641697 GM |
3794 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3795 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3796 | { |
3797 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
e1e419ec | 3798 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
ab8469eb PJ |
3799 | else |
3800 | to[i] = from[i]; | |
3801 | } | |
2c20458f MB |
3802 | |
3803 | /* TO is always an absolute face, which should inherit from nothing. | |
3804 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3805 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3806 | } | |
3807 | ||
a0a23346 MB |
3808 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
3809 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
3810 | inheritance. Returns true if FACE_NAME is a valid face name and | |
3811 | merging succeeded. */ | |
6288c62f | 3812 | |
a0a23346 MB |
3813 | static int |
3814 | merge_named_face (f, face_name, to, named_merge_points) | |
2c20458f | 3815 | struct frame *f; |
a0a23346 | 3816 | Lisp_Object face_name; |
2c20458f | 3817 | Lisp_Object *to; |
a0a23346 | 3818 | struct named_merge_point *named_merge_points; |
2c20458f | 3819 | { |
a0a23346 | 3820 | struct named_merge_point named_merge_point; |
2c20458f | 3821 | |
a0a23346 MB |
3822 | if (push_named_merge_point (&named_merge_point, |
3823 | face_name, &named_merge_points)) | |
2c20458f | 3824 | { |
e1e419ec | 3825 | struct gcpro gcpro1; |
e7d7fd8c MB |
3826 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
3827 | int ok = get_lface_attributes (f, face_name, from, 0); | |
2c20458f | 3828 | |
e7d7fd8c MB |
3829 | if (ok) |
3830 | { | |
3831 | GCPRO1 (named_merge_point.face_name); | |
3832 | merge_face_vectors (f, from, to, named_merge_points); | |
3833 | UNGCPRO; | |
3834 | } | |
3835 | ||
3836 | return ok; | |
2c20458f | 3837 | } |
a0a23346 MB |
3838 | else |
3839 | return 0; | |
82641697 GM |
3840 | } |
3841 | ||
3842 | ||
a0a23346 MB |
3843 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
3844 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
3845 | problems with FACE_REF cause an error message to be shown. Return | |
3846 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
3847 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
3848 | list structure; it may be 0 for most callers. | |
3849 | ||
3850 | FACE_REF may be a single face specification or a list of such | |
3851 | specifications. Each face specification can be: | |
82641697 GM |
3852 | |
3853 | 1. A symbol or string naming a Lisp face. | |
3854 | ||
3855 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3856 | KEYWORD is a face attribute name, and value is an appropriate value | |
3857 | for that attribute. | |
3858 | ||
3859 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3860 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3861 | for compatibility with 20.2. | |
3862 | ||
3863 | Face specifications earlier in lists take precedence over later | |
3864 | specifications. */ | |
178c5d9c | 3865 | |
a0a23346 MB |
3866 | static int |
3867 | merge_face_ref (f, face_ref, to, err_msgs, named_merge_points) | |
82641697 | 3868 | struct frame *f; |
a0a23346 | 3869 | Lisp_Object face_ref; |
82641697 | 3870 | Lisp_Object *to; |
a0a23346 MB |
3871 | int err_msgs; |
3872 | struct named_merge_point *named_merge_points; | |
82641697 | 3873 | { |
a0a23346 MB |
3874 | int ok = 1; /* Succeed without an error? */ |
3875 | ||
3876 | if (CONSP (face_ref)) | |
82641697 | 3877 | { |
a0a23346 | 3878 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 3879 | |
82641697 GM |
3880 | if (EQ (first, Qforeground_color) |
3881 | || EQ (first, Qbackground_color)) | |
3882 | { | |
3883 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3884 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 3885 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
3886 | Lisp_Object color = first; |
3887 | ||
3888 | if (STRINGP (color_name)) | |
3889 | { | |
3890 | if (EQ (color, Qforeground_color)) | |
3891 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3892 | else | |
3893 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3894 | } | |
3895 | else | |
a0a23346 MB |
3896 | { |
3897 | if (err_msgs) | |
3898 | add_to_log ("Invalid face color", color_name, Qnil); | |
3899 | ok = 0; | |
3900 | } | |
82641697 GM |
3901 | } |
3902 | else if (SYMBOLP (first) | |
d5db4077 | 3903 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3904 | { |
3905 | /* Assume this is the property list form. */ | |
a0a23346 | 3906 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 3907 | { |
a0a23346 MB |
3908 | Lisp_Object keyword = XCAR (face_ref); |
3909 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
3910 | int err = 0; | |
82641697 | 3911 | |
d9639b25 RS |
3912 | /* Specifying `unspecified' is a no-op. */ |
3913 | if (EQ (value, Qunspecified)) | |
3914 | ; | |
3915 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
3916 | { |
3917 | if (STRINGP (value)) | |
3918 | to[LFACE_FAMILY_INDEX] = value; | |
3919 | else | |
a0a23346 | 3920 | err = 1; |
82641697 GM |
3921 | } |
3922 | else if (EQ (keyword, QCheight)) | |
3923 | { | |
2c20458f | 3924 | Lisp_Object new_height = |
e1e419ec | 3925 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 3926 | |
a0a23346 | 3927 | if (! NILP (new_height)) |
2c20458f | 3928 | to[LFACE_HEIGHT_INDEX] = new_height; |
a0a23346 MB |
3929 | else |
3930 | err = 1; | |
82641697 GM |
3931 | } |
3932 | else if (EQ (keyword, QCweight)) | |
3933 | { | |
3934 | if (SYMBOLP (value) | |
3935 | && face_numeric_weight (value) >= 0) | |
3936 | to[LFACE_WEIGHT_INDEX] = value; | |
3937 | else | |
a0a23346 | 3938 | err = 1; |
82641697 GM |
3939 | } |
3940 | else if (EQ (keyword, QCslant)) | |
3941 | { | |
3942 | if (SYMBOLP (value) | |
3943 | && face_numeric_slant (value) >= 0) | |
3944 | to[LFACE_SLANT_INDEX] = value; | |
3945 | else | |
a0a23346 | 3946 | err = 1; |
82641697 GM |
3947 | } |
3948 | else if (EQ (keyword, QCunderline)) | |
3949 | { | |
3950 | if (EQ (value, Qt) | |
3951 | || NILP (value) | |
3952 | || STRINGP (value)) | |
3953 | to[LFACE_UNDERLINE_INDEX] = value; | |
3954 | else | |
a0a23346 | 3955 | err = 1; |
82641697 GM |
3956 | } |
3957 | else if (EQ (keyword, QCoverline)) | |
3958 | { | |
3959 | if (EQ (value, Qt) | |
3960 | || NILP (value) | |
3961 | || STRINGP (value)) | |
3962 | to[LFACE_OVERLINE_INDEX] = value; | |
3963 | else | |
a0a23346 | 3964 | err = 1; |
82641697 GM |
3965 | } |
3966 | else if (EQ (keyword, QCstrike_through)) | |
3967 | { | |
3968 | if (EQ (value, Qt) | |
3969 | || NILP (value) | |
3970 | || STRINGP (value)) | |
3971 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3972 | else | |
a0a23346 | 3973 | err = 1; |
82641697 GM |
3974 | } |
3975 | else if (EQ (keyword, QCbox)) | |
3976 | { | |
3977 | if (EQ (value, Qt)) | |
3978 | value = make_number (1); | |
3979 | if (INTEGERP (value) | |
3980 | || STRINGP (value) | |
3981 | || CONSP (value) | |
3982 | || NILP (value)) | |
3983 | to[LFACE_BOX_INDEX] = value; | |
3984 | else | |
a0a23346 | 3985 | err = 1; |
82641697 GM |
3986 | } |
3987 | else if (EQ (keyword, QCinverse_video) | |
3988 | || EQ (keyword, QCreverse_video)) | |
3989 | { | |
3990 | if (EQ (value, Qt) || NILP (value)) | |
3991 | to[LFACE_INVERSE_INDEX] = value; | |
3992 | else | |
a0a23346 | 3993 | err = 1; |
82641697 GM |
3994 | } |
3995 | else if (EQ (keyword, QCforeground)) | |
3996 | { | |
3997 | if (STRINGP (value)) | |
3998 | to[LFACE_FOREGROUND_INDEX] = value; | |
3999 | else | |
a0a23346 | 4000 | err = 1; |
82641697 GM |
4001 | } |
4002 | else if (EQ (keyword, QCbackground)) | |
4003 | { | |
4004 | if (STRINGP (value)) | |
4005 | to[LFACE_BACKGROUND_INDEX] = value; | |
4006 | else | |
a0a23346 | 4007 | err = 1; |
82641697 GM |
4008 | } |
4009 | else if (EQ (keyword, QCstipple)) | |
4010 | { | |
4011 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 4012 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
4013 | if (!NILP (pixmap_p)) |
4014 | to[LFACE_STIPPLE_INDEX] = value; | |
4015 | else | |
a0a23346 | 4016 | err = 1; |
82641697 GM |
4017 | #endif |
4018 | } | |
4019 | else if (EQ (keyword, QCwidth)) | |
4020 | { | |
4021 | if (SYMBOLP (value) | |
4022 | && face_numeric_swidth (value) >= 0) | |
4023 | to[LFACE_SWIDTH_INDEX] = value; | |
4024 | else | |
a0a23346 | 4025 | err = 1; |
82641697 | 4026 | } |
2c20458f MB |
4027 | else if (EQ (keyword, QCinherit)) |
4028 | { | |
a0a23346 MB |
4029 | /* This is not really very useful; it's just like a |
4030 | normal face reference. */ | |
4031 | if (! merge_face_ref (f, value, to, | |
4032 | err_msgs, named_merge_points)) | |
4033 | err = 1; | |
2c20458f | 4034 | } |
82641697 | 4035 | else |
a0a23346 | 4036 | err = 1; |
82641697 | 4037 | |
a0a23346 MB |
4038 | if (err) |
4039 | { | |
4040 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
4041 | ok = 0; | |
4042 | } | |
82641697 | 4043 | |
a0a23346 | 4044 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
4045 | } |
4046 | } | |
4047 | else | |
4048 | { | |
a0a23346 MB |
4049 | /* This is a list of face refs. Those at the beginning of the |
4050 | list take precedence over what follows, so we have to merge | |
4051 | from the end backwards. */ | |
4052 | Lisp_Object next = XCDR (face_ref); | |
4053 | ||
4054 | if (! NILP (next)) | |
4055 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
4056 | ||
4057 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
4058 | ok = 0; | |
82641697 GM |
4059 | } |
4060 | } | |
4061 | else | |
4062 | { | |
a0a23346 MB |
4063 | /* FACE_REF ought to be a face name. */ |
4064 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
4065 | if (!ok && err_msgs) | |
4066 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 4067 | } |
a0a23346 MB |
4068 | |
4069 | return ok; | |
82641697 GM |
4070 | } |
4071 | ||
4072 | ||
4073 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
4074 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 4075 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
4076 | If FACE was not known as a face before, create a new one. |
4077 | If optional argument FRAME is specified, make a frame-local face | |
4078 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
4079 | Value is a vector of face attributes. */) |
4080 | (face, frame) | |
82641697 GM |
4081 | Lisp_Object face, frame; |
4082 | { | |
4083 | Lisp_Object global_lface, lface; | |
4084 | struct frame *f; | |
4085 | int i; | |
4086 | ||
b7826503 | 4087 | CHECK_SYMBOL (face); |
82641697 | 4088 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 4089 | |
82641697 GM |
4090 | if (!NILP (frame)) |
4091 | { | |
b7826503 | 4092 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4093 | f = XFRAME (frame); |
4094 | lface = lface_from_face_name (f, face, 0); | |
4095 | } | |
4096 | else | |
4097 | f = NULL, lface = Qnil; | |
4098 | ||
4099 | /* Add a global definition if there is none. */ | |
4100 | if (NILP (global_lface)) | |
4101 | { | |
4102 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4103 | Qunspecified); | |
dfae5f9a | 4104 | ASET (global_lface, 0, Qface); |
178c5d9c | 4105 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 4106 | Vface_new_frame_defaults); |
178c5d9c | 4107 | |
82641697 GM |
4108 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
4109 | face id to Lisp face is given by the vector lface_id_to_name. | |
4110 | The mapping from Lisp face to Lisp face id is given by the | |
4111 | property `face' of the Lisp face name. */ | |
4112 | if (next_lface_id == lface_id_to_name_size) | |
4113 | { | |
4114 | int new_size = max (50, 2 * lface_id_to_name_size); | |
4115 | int sz = new_size * sizeof *lface_id_to_name; | |
4116 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
4117 | lface_id_to_name_size = new_size; | |
4118 | } | |
178c5d9c | 4119 | |
82641697 GM |
4120 | lface_id_to_name[next_lface_id] = face; |
4121 | Fput (face, Qface, make_number (next_lface_id)); | |
4122 | ++next_lface_id; | |
4123 | } | |
4124 | else if (f == NULL) | |
4125 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 4126 | ASET (global_lface, i, Qunspecified); |
178c5d9c | 4127 | |
82641697 GM |
4128 | /* Add a frame-local definition. */ |
4129 | if (f) | |
4130 | { | |
4131 | if (NILP (lface)) | |
4132 | { | |
4133 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4134 | Qunspecified); | |
dfae5f9a | 4135 | ASET (lface, 0, Qface); |
82641697 GM |
4136 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
4137 | } | |
4138 | else | |
4139 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 4140 | ASET (lface, i, Qunspecified); |
82641697 GM |
4141 | } |
4142 | else | |
4143 | lface = global_lface; | |
4144 | ||
33565969 RS |
4145 | /* Changing a named face means that all realized faces depending on |
4146 | that face are invalid. Since we cannot tell which realized faces | |
4147 | depend on the face, make sure they are all removed. This is done | |
4148 | by incrementing face_change_count. The next call to | |
4149 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4150 | if (NILP (Fget (face, Qface_no_inherit))) |
4151 | { | |
4152 | ++face_change_count; | |
4153 | ++windows_or_buffers_changed; | |
4154 | } | |
33565969 | 4155 | |
82641697 GM |
4156 | xassert (LFACEP (lface)); |
4157 | check_lface (lface); | |
4158 | return lface; | |
4159 | } | |
4160 | ||
4161 | ||
4162 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
4163 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 4164 | doc: /* Return non-nil if FACE names a face. |
1d256714 | 4165 | If optional second argument FRAME is non-nil, check for the |
228299fa | 4166 | existence of a frame-local face with name FACE on that frame. |
7ee72033 MB |
4167 | Otherwise check for the existence of a global face. */) |
4168 | (face, frame) | |
82641697 GM |
4169 | Lisp_Object face, frame; |
4170 | { | |
4171 | Lisp_Object lface; | |
178c5d9c | 4172 | |
65fddb74 JB |
4173 | face = resolve_face_name (face, 1); |
4174 | ||
82641697 GM |
4175 | if (!NILP (frame)) |
4176 | { | |
b7826503 | 4177 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4178 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
4179 | } | |
4180 | else | |
4181 | lface = lface_from_face_name (NULL, face, 0); | |
4182 | ||
4183 | return lface; | |
4184 | } | |
4185 | ||
4186 | ||
4187 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
4188 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 4189 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
4190 | If FRAME is t, copy the global face definition of FROM. |
4191 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
4192 | If NEW-FRAME is a frame, copy that data into the frame-local | |
4193 | definition of TO on NEW-FRAME. If NEW-FRAME is nil. | |
4194 | FRAME controls where the data is copied to. | |
228299fa | 4195 | |
5e9bab6f | 4196 | The value is TO. */) |
7ee72033 | 4197 | (from, to, frame, new_frame) |
82641697 GM |
4198 | Lisp_Object from, to, frame, new_frame; |
4199 | { | |
4200 | Lisp_Object lface, copy; | |
178c5d9c | 4201 | |
b7826503 PJ |
4202 | CHECK_SYMBOL (from); |
4203 | CHECK_SYMBOL (to); | |
82641697 GM |
4204 | |
4205 | if (EQ (frame, Qt)) | |
4206 | { | |
4207 | /* Copy global definition of FROM. We don't make copies of | |
4208 | strings etc. because 20.2 didn't do it either. */ | |
4209 | lface = lface_from_face_name (NULL, from, 1); | |
4210 | copy = Finternal_make_lisp_face (to, Qnil); | |
4211 | } | |
4212 | else | |
4213 | { | |
4214 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
4215 | if (NILP (new_frame)) |
4216 | new_frame = frame; | |
b7826503 PJ |
4217 | CHECK_LIVE_FRAME (frame); |
4218 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
4219 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
4220 | copy = Finternal_make_lisp_face (to, new_frame); | |
4221 | } | |
178c5d9c | 4222 | |
82641697 GM |
4223 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
4224 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 4225 | |
33565969 RS |
4226 | /* Changing a named face means that all realized faces depending on |
4227 | that face are invalid. Since we cannot tell which realized faces | |
4228 | depend on the face, make sure they are all removed. This is done | |
4229 | by incrementing face_change_count. The next call to | |
4230 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4231 | if (NILP (Fget (to, Qface_no_inherit))) |
4232 | { | |
4233 | ++face_change_count; | |
4234 | ++windows_or_buffers_changed; | |
4235 | } | |
33565969 | 4236 | |
82641697 GM |
4237 | return to; |
4238 | } | |
4239 | ||
4240 | ||
4241 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
4242 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 4243 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
4244 | FRAME being a frame means change the face on that frame. |
4245 | FRAME nil means change the face of the selected frame. | |
4246 | FRAME t means change the default for new frames. | |
4247 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
4248 | for new frames. */) |
4249 | (face, attr, value, frame) | |
82641697 GM |
4250 | Lisp_Object face, attr, value, frame; |
4251 | { | |
4252 | Lisp_Object lface; | |
4253 | Lisp_Object old_value = Qnil; | |
39506348 KH |
4254 | /* Set 1 if ATTR is QCfont. */ |
4255 | int font_attr_p = 0; | |
4256 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 4257 | int font_related_attr_p = 0; |
178c5d9c | 4258 | |
b7826503 PJ |
4259 | CHECK_SYMBOL (face); |
4260 | CHECK_SYMBOL (attr); | |
82641697 | 4261 | |
d1bf13b3 | 4262 | face = resolve_face_name (face, 1); |
c7ae3284 | 4263 | |
628436fb GM |
4264 | /* If FRAME is 0, change face on all frames, and change the |
4265 | default for new frames. */ | |
4266 | if (INTEGERP (frame) && XINT (frame) == 0) | |
4267 | { | |
4268 | Lisp_Object tail; | |
d12d0a9b | 4269 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
4270 | FOR_EACH_FRAME (tail, frame) |
4271 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 4272 | return face; |
628436fb GM |
4273 | } |
4274 | ||
82641697 GM |
4275 | /* Set lface to the Lisp attribute vector of FACE. */ |
4276 | if (EQ (frame, Qt)) | |
0268cef3 CY |
4277 | { |
4278 | lface = lface_from_face_name (NULL, face, 1); | |
67d23e01 CY |
4279 | |
4280 | /* When updating face-new-frame-defaults, we put :ignore-defface | |
4281 | where the caller wants `unspecified'. This forces the frame | |
4282 | defaults to ignore the defface value. Otherwise, the defface | |
4283 | will take effect, which is generally not what is intended. | |
4284 | The value of that attribute will be inherited from some other | |
4285 | face during face merging. See internal_merge_in_global_face. */ | |
0268cef3 | 4286 | if (UNSPECIFIEDP (value)) |
67d23e01 | 4287 | value = Qignore_defface; |
0268cef3 | 4288 | } |
82641697 GM |
4289 | else |
4290 | { | |
4291 | if (NILP (frame)) | |
c0617987 | 4292 | frame = selected_frame; |
178c5d9c | 4293 | |
b7826503 | 4294 | CHECK_LIVE_FRAME (frame); |
82641697 | 4295 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 4296 | |
82641697 GM |
4297 | /* If a frame-local face doesn't exist yet, create one. */ |
4298 | if (NILP (lface)) | |
4299 | lface = Finternal_make_lisp_face (face, frame); | |
4300 | } | |
4301 | ||
4302 | if (EQ (attr, QCfamily)) | |
4303 | { | |
2ff10663 | 4304 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4305 | { |
b7826503 | 4306 | CHECK_STRING (value); |
d5db4077 | 4307 | if (SCHARS (value) == 0) |
82641697 GM |
4308 | signal_error ("Invalid face family", value); |
4309 | } | |
4310 | old_value = LFACE_FAMILY (lface); | |
4311 | LFACE_FAMILY (lface) = value; | |
4312 | font_related_attr_p = 1; | |
4313 | } | |
4314 | else if (EQ (attr, QCheight)) | |
4315 | { | |
2ff10663 | 4316 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4317 | { |
d8055bfc | 4318 | Lisp_Object test; |
2c20458f | 4319 | |
d8055bfc GM |
4320 | test = (EQ (face, Qdefault) |
4321 | ? value | |
4322 | /* The default face must have an absolute size, | |
4323 | otherwise, we do a test merge with a random | |
4324 | height to see if VALUE's ok. */ | |
e1e419ec | 4325 | : merge_face_heights (value, make_number (10), Qnil)); |
d8055bfc GM |
4326 | |
4327 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
4328 | signal_error ("Invalid face height", value); |
4329 | } | |
2c20458f | 4330 | |
82641697 GM |
4331 | old_value = LFACE_HEIGHT (lface); |
4332 | LFACE_HEIGHT (lface) = value; | |
4333 | font_related_attr_p = 1; | |
4334 | } | |
4335 | else if (EQ (attr, QCweight)) | |
4336 | { | |
2ff10663 | 4337 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4338 | { |
b7826503 | 4339 | CHECK_SYMBOL (value); |
82641697 GM |
4340 | if (face_numeric_weight (value) < 0) |
4341 | signal_error ("Invalid face weight", value); | |
4342 | } | |
4343 | old_value = LFACE_WEIGHT (lface); | |
4344 | LFACE_WEIGHT (lface) = value; | |
4345 | font_related_attr_p = 1; | |
4346 | } | |
4347 | else if (EQ (attr, QCslant)) | |
4348 | { | |
2ff10663 | 4349 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4350 | { |
b7826503 | 4351 | CHECK_SYMBOL (value); |
82641697 GM |
4352 | if (face_numeric_slant (value) < 0) |
4353 | signal_error ("Invalid face slant", value); | |
4354 | } | |
4355 | old_value = LFACE_SLANT (lface); | |
4356 | LFACE_SLANT (lface) = value; | |
4357 | font_related_attr_p = 1; | |
4358 | } | |
4359 | else if (EQ (attr, QCunderline)) | |
4360 | { | |
2ff10663 | 4361 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4362 | if ((SYMBOLP (value) |
4363 | && !EQ (value, Qt) | |
4364 | && !EQ (value, Qnil)) | |
4365 | /* Underline color. */ | |
4366 | || (STRINGP (value) | |
d5db4077 | 4367 | && SCHARS (value) == 0)) |
82641697 | 4368 | signal_error ("Invalid face underline", value); |
178c5d9c | 4369 | |
82641697 GM |
4370 | old_value = LFACE_UNDERLINE (lface); |
4371 | LFACE_UNDERLINE (lface) = value; | |
4372 | } | |
4373 | else if (EQ (attr, QCoverline)) | |
4374 | { | |
2ff10663 | 4375 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4376 | if ((SYMBOLP (value) |
4377 | && !EQ (value, Qt) | |
4378 | && !EQ (value, Qnil)) | |
4379 | /* Overline color. */ | |
4380 | || (STRINGP (value) | |
d5db4077 | 4381 | && SCHARS (value) == 0)) |
82641697 | 4382 | signal_error ("Invalid face overline", value); |
178c5d9c | 4383 | |
82641697 GM |
4384 | old_value = LFACE_OVERLINE (lface); |
4385 | LFACE_OVERLINE (lface) = value; | |
4386 | } | |
4387 | else if (EQ (attr, QCstrike_through)) | |
4388 | { | |
2ff10663 | 4389 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4390 | if ((SYMBOLP (value) |
4391 | && !EQ (value, Qt) | |
4392 | && !EQ (value, Qnil)) | |
4393 | /* Strike-through color. */ | |
4394 | || (STRINGP (value) | |
d5db4077 | 4395 | && SCHARS (value) == 0)) |
82641697 | 4396 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 4397 | |
82641697 GM |
4398 | old_value = LFACE_STRIKE_THROUGH (lface); |
4399 | LFACE_STRIKE_THROUGH (lface) = value; | |
4400 | } | |
4401 | else if (EQ (attr, QCbox)) | |
4402 | { | |
4403 | int valid_p; | |
178c5d9c | 4404 | |
82641697 GM |
4405 | /* Allow t meaning a simple box of width 1 in foreground color |
4406 | of the face. */ | |
4407 | if (EQ (value, Qt)) | |
4408 | value = make_number (1); | |
4409 | ||
2ff10663 | 4410 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
82641697 GM |
4411 | valid_p = 1; |
4412 | else if (NILP (value)) | |
4413 | valid_p = 1; | |
4414 | else if (INTEGERP (value)) | |
89624b8b | 4415 | valid_p = XINT (value) != 0; |
82641697 | 4416 | else if (STRINGP (value)) |
d5db4077 | 4417 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4418 | else if (CONSP (value)) |
4419 | { | |
4420 | Lisp_Object tem; | |
178c5d9c | 4421 | |
82641697 GM |
4422 | tem = value; |
4423 | while (CONSP (tem)) | |
4424 | { | |
4425 | Lisp_Object k, v; | |
4426 | ||
4427 | k = XCAR (tem); | |
4428 | tem = XCDR (tem); | |
4429 | if (!CONSP (tem)) | |
4430 | break; | |
4431 | v = XCAR (tem); | |
4432 | tem = XCDR (tem); | |
178c5d9c | 4433 | |
82641697 GM |
4434 | if (EQ (k, QCline_width)) |
4435 | { | |
89624b8b | 4436 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4437 | break; |
4438 | } | |
4439 | else if (EQ (k, QCcolor)) | |
4440 | { | |
91c212f1 | 4441 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
4442 | break; |
4443 | } | |
4444 | else if (EQ (k, QCstyle)) | |
4445 | { | |
4446 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4447 | break; | |
4448 | } | |
4449 | else | |
4450 | break; | |
4451 | } | |
4452 | ||
4453 | valid_p = NILP (tem); | |
4454 | } | |
4455 | else | |
4456 | valid_p = 0; | |
4457 | ||
4458 | if (!valid_p) | |
4459 | signal_error ("Invalid face box", value); | |
178c5d9c | 4460 | |
82641697 GM |
4461 | old_value = LFACE_BOX (lface); |
4462 | LFACE_BOX (lface) = value; | |
4463 | } | |
4464 | else if (EQ (attr, QCinverse_video) | |
4465 | || EQ (attr, QCreverse_video)) | |
4466 | { | |
2ff10663 | 4467 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4468 | { |
b7826503 | 4469 | CHECK_SYMBOL (value); |
82641697 GM |
4470 | if (!EQ (value, Qt) && !NILP (value)) |
4471 | signal_error ("Invalid inverse-video face attribute value", value); | |
4472 | } | |
4473 | old_value = LFACE_INVERSE (lface); | |
4474 | LFACE_INVERSE (lface) = value; | |
4475 | } | |
4476 | else if (EQ (attr, QCforeground)) | |
4477 | { | |
2ff10663 | 4478 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4479 | { |
4480 | /* Don't check for valid color names here because it depends | |
4481 | on the frame (display) whether the color will be valid | |
4482 | when the face is realized. */ | |
b7826503 | 4483 | CHECK_STRING (value); |
d5db4077 | 4484 | if (SCHARS (value) == 0) |
82641697 GM |
4485 | signal_error ("Empty foreground color value", value); |
4486 | } | |
4487 | old_value = LFACE_FOREGROUND (lface); | |
4488 | LFACE_FOREGROUND (lface) = value; | |
4489 | } | |
4490 | else if (EQ (attr, QCbackground)) | |
4491 | { | |
2ff10663 | 4492 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4493 | { |
4494 | /* Don't check for valid color names here because it depends | |
4495 | on the frame (display) whether the color will be valid | |
4496 | when the face is realized. */ | |
b7826503 | 4497 | CHECK_STRING (value); |
d5db4077 | 4498 | if (SCHARS (value) == 0) |
82641697 GM |
4499 | signal_error ("Empty background color value", value); |
4500 | } | |
4501 | old_value = LFACE_BACKGROUND (lface); | |
4502 | LFACE_BACKGROUND (lface) = value; | |
4503 | } | |
4504 | else if (EQ (attr, QCstipple)) | |
4505 | { | |
4506 | #ifdef HAVE_X_WINDOWS | |
2ff10663 | 4507 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4508 | && !NILP (value) |
fef04523 | 4509 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4510 | signal_error ("Invalid stipple attribute", value); |
4511 | old_value = LFACE_STIPPLE (lface); | |
4512 | LFACE_STIPPLE (lface) = value; | |
4513 | #endif /* HAVE_X_WINDOWS */ | |
4514 | } | |
4515 | else if (EQ (attr, QCwidth)) | |
4516 | { | |
2ff10663 | 4517 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4518 | { |
b7826503 | 4519 | CHECK_SYMBOL (value); |
82641697 GM |
4520 | if (face_numeric_swidth (value) < 0) |
4521 | signal_error ("Invalid face width", value); | |
4522 | } | |
4523 | old_value = LFACE_SWIDTH (lface); | |
4524 | LFACE_SWIDTH (lface) = value; | |
4525 | font_related_attr_p = 1; | |
4526 | } | |
763bc839 | 4527 | else if (EQ (attr, QCfont) || EQ (attr, QCfontset)) |
82641697 | 4528 | { |
c3cee013 | 4529 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4530 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4531 | { |
4532 | /* Set font-related attributes of the Lisp face from an XLFD | |
4533 | font name. */ | |
4534 | struct frame *f; | |
4535 | Lisp_Object tmp; | |
82641697 | 4536 | |
96fbd2c6 EZ |
4537 | if (EQ (frame, Qt)) |
4538 | f = SELECTED_FRAME (); | |
4539 | else | |
4540 | f = check_x_frame (frame); | |
178c5d9c | 4541 | |
f4d3bea3 KH |
4542 | #ifdef USE_FONT_BACKEND |
4543 | if (enable_font_backend | |
4544 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) | |
4545 | { | |
db1c10a2 | 4546 | tmp = Fquery_fontset (value, Qnil); |
f4d3bea3 KH |
4547 | if (EQ (attr, QCfontset)) |
4548 | { | |
db1c10a2 | 4549 | if (NILP (tmp)) |
f4d3bea3 | 4550 | signal_error ("Invalid fontset name", value); |
db1c10a2 | 4551 | LFACE_FONTSET (lface) = tmp; |
f4d3bea3 KH |
4552 | } |
4553 | else | |
4554 | { | |
db1c10a2 | 4555 | int fontset; |
f4d3bea3 KH |
4556 | Lisp_Object font_object; |
4557 | ||
db1c10a2 | 4558 | if (! NILP (tmp)) |
f4d3bea3 | 4559 | { |
db1c10a2 KH |
4560 | fontset = fs_query_fontset (tmp, 0); |
4561 | value = fontset_ascii (fontset); | |
f4d3bea3 KH |
4562 | } |
4563 | else | |
4564 | { | |
db1c10a2 | 4565 | fontset = FRAME_FONTSET (f); |
f4d3bea3 | 4566 | } |
db1c10a2 KH |
4567 | font_object = font_open_by_name (f, SDATA (value)); |
4568 | if (NILP (font_object)) | |
4569 | signal_error ("Invalid font", value); | |
f4d3bea3 KH |
4570 | set_lface_from_font_and_fontset (f, lface, font_object, |
4571 | fontset, 1); | |
4572 | } | |
4573 | } | |
4574 | else | |
4575 | #endif /* USE_FONT_BACKEND */ | |
2ff10663 | 4576 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
e67f5ccc RS |
4577 | { |
4578 | CHECK_STRING (value); | |
39506348 | 4579 | |
e67f5ccc RS |
4580 | /* VALUE may be a fontset name or an alias of fontset. In |
4581 | such a case, use the base fontset name. */ | |
4582 | tmp = Fquery_fontset (value, Qnil); | |
4583 | if (!NILP (tmp)) | |
4584 | value = tmp; | |
8f924df7 KH |
4585 | else if (EQ (attr, QCfontset)) |
4586 | signal_error ("Invalid fontset name", value); | |
e67f5ccc | 4587 | |
8f924df7 KH |
4588 | if (EQ (attr, QCfont)) |
4589 | { | |
4590 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
4591 | signal_error ("Invalid font or fontset name", value); | |
4592 | } | |
4593 | else | |
4594 | LFACE_FONTSET (lface) = value; | |
e67f5ccc | 4595 | } |
39506348 | 4596 | |
96fbd2c6 EZ |
4597 | font_attr_p = 1; |
4598 | } | |
c3cee013 | 4599 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4600 | } |
2c20458f MB |
4601 | else if (EQ (attr, QCinherit)) |
4602 | { | |
4603 | Lisp_Object tail; | |
4604 | if (SYMBOLP (value)) | |
4605 | tail = Qnil; | |
4606 | else | |
4607 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4608 | if (!SYMBOLP (XCAR (tail))) | |
4609 | break; | |
4610 | if (NILP (tail)) | |
4611 | LFACE_INHERIT (lface) = value; | |
4612 | else | |
6288c62f | 4613 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4614 | } |
82641697 GM |
4615 | else if (EQ (attr, QCbold)) |
4616 | { | |
4617 | old_value = LFACE_WEIGHT (lface); | |
4618 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4619 | font_related_attr_p = 1; | |
4620 | } | |
4621 | else if (EQ (attr, QCitalic)) | |
4622 | { | |
4623 | old_value = LFACE_SLANT (lface); | |
4624 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4625 | font_related_attr_p = 1; | |
4626 | } | |
4627 | else | |
4628 | signal_error ("Invalid face attribute name", attr); | |
4629 | ||
39506348 | 4630 | if (font_related_attr_p |
2ff10663 | 4631 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
39506348 KH |
4632 | /* If a font-related attribute other than QCfont is specified, the |
4633 | original `font' attribute nor that of default face is useless | |
4634 | to determine a new font. Thus, we set it to nil so that font | |
4635 | selection mechanism doesn't use it. */ | |
4636 | LFACE_FONT (lface) = Qnil; | |
4637 | ||
82641697 GM |
4638 | /* Changing a named face means that all realized faces depending on |
4639 | that face are invalid. Since we cannot tell which realized faces | |
4640 | depend on the face, make sure they are all removed. This is done | |
4641 | by incrementing face_change_count. The next call to | |
4642 | init_iterator will then free realized faces. */ | |
4643 | if (!EQ (frame, Qt) | |
46b00436 | 4644 | && NILP (Fget (face, Qface_no_inherit)) |
82641697 | 4645 | && (EQ (attr, QCfont) |
763bc839 | 4646 | || EQ (attr, QCfontset) |
82641697 GM |
4647 | || NILP (Fequal (old_value, value)))) |
4648 | { | |
4649 | ++face_change_count; | |
4650 | ++windows_or_buffers_changed; | |
4651 | } | |
4652 | ||
2ff10663 | 4653 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4654 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4655 | { |
4656 | Lisp_Object param; | |
4657 | ||
4658 | param = Qnil; | |
178c5d9c | 4659 | |
8bd201d6 GM |
4660 | if (EQ (face, Qdefault)) |
4661 | { | |
b9c769f8 | 4662 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4663 | /* Changed font-related attributes of the `default' face are |
4664 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4665 | if (FRAMEP (frame) |
4666 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4667 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4668 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4669 | else |
4670 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4671 | ||
4672 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4673 | param = Qforeground_color; |
4674 | else if (EQ (attr, QCbackground)) | |
4675 | param = Qbackground_color; | |
4676 | } | |
b9c769f8 | 4677 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4678 | #ifndef WINDOWSNT |
8bd201d6 GM |
4679 | else if (EQ (face, Qscroll_bar)) |
4680 | { | |
4681 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4682 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4683 | if (EQ (attr, QCforeground)) | |
4684 | param = Qscroll_bar_foreground; | |
4685 | else if (EQ (attr, QCbackground)) | |
4686 | param = Qscroll_bar_background; | |
4687 | } | |
d12d0a9b | 4688 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4689 | else if (EQ (face, Qborder)) |
4690 | { | |
4691 | /* Changing background color of `border' sets frame parameter | |
4692 | `border-color'. */ | |
4693 | if (EQ (attr, QCbackground)) | |
4694 | param = Qborder_color; | |
4695 | } | |
4696 | else if (EQ (face, Qcursor)) | |
4697 | { | |
4698 | /* Changing background color of `cursor' sets frame parameter | |
4699 | `cursor-color'. */ | |
4700 | if (EQ (attr, QCbackground)) | |
4701 | param = Qcursor_color; | |
4702 | } | |
4703 | else if (EQ (face, Qmouse)) | |
4704 | { | |
4705 | /* Changing background color of `mouse' sets frame parameter | |
4706 | `mouse-color'. */ | |
4707 | if (EQ (attr, QCbackground)) | |
4708 | param = Qmouse_color; | |
4709 | } | |
b9c769f8 | 4710 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4711 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4712 | { |
4713 | /* Indicate that we have to update the menu bar when | |
4714 | realizing faces on FRAME. FRAME t change the | |
4715 | default for new frames. We do this by setting | |
4716 | setting the flag in new face caches */ | |
4717 | if (FRAMEP (frame)) | |
4718 | { | |
4719 | struct frame *f = XFRAME (frame); | |
4720 | if (FRAME_FACE_CACHE (f) == NULL) | |
4721 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4722 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4723 | } | |
4724 | else | |
4725 | menu_face_changed_default = 1; | |
4726 | } | |
8bd201d6 | 4727 | |
39506348 | 4728 | if (!NILP (param)) |
ab8469eb PJ |
4729 | { |
4730 | if (EQ (frame, Qt)) | |
4731 | /* Update `default-frame-alist', which is used for new frames. */ | |
4732 | { | |
4733 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4734 | } | |
4735 | else | |
4736 | /* Update the current frame's parameters. */ | |
4737 | { | |
4738 | Lisp_Object cons; | |
4739 | cons = XCAR (Vparam_value_alist); | |
4740 | XSETCAR (cons, param); | |
4741 | XSETCDR (cons, value); | |
4742 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4743 | } | |
4744 | } | |
8bd201d6 | 4745 | } |
82641697 | 4746 | |
82641697 GM |
4747 | return face; |
4748 | } | |
4749 | ||
4750 | ||
c3cee013 | 4751 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4752 | |
39506348 | 4753 | /* Set the `font' frame parameter of FRAME determined from `default' |
763bc839 | 4754 | face attributes LFACE. If a font name is explicitely |
39506348 KH |
4755 | specfied in LFACE, use it as is. Otherwise, determine a font name |
4756 | from the other font-related atrributes of LFACE. In that case, if | |
4757 | there's no matching font, signals an error. */ | |
82641697 GM |
4758 | |
4759 | static void | |
4760 | set_font_frame_param (frame, lface) | |
4761 | Lisp_Object frame, lface; | |
4762 | { | |
4763 | struct frame *f = XFRAME (frame); | |
82641697 | 4764 | |
482cca61 | 4765 | if (FRAME_WINDOW_P (f)) |
82641697 | 4766 | { |
482cca61 GM |
4767 | Lisp_Object font_name; |
4768 | char *font; | |
177c0ea7 | 4769 | |
482cca61 GM |
4770 | if (STRINGP (LFACE_FONT (lface))) |
4771 | font_name = LFACE_FONT (lface); | |
426b2119 KH |
4772 | #ifdef USE_FONT_BACKEND |
4773 | else if (enable_font_backend) | |
4774 | { | |
f4d3bea3 KH |
4775 | /* We set FONT_NAME to a font-object. */ |
4776 | if (FONT_OBJECT_P (LFACE_FONT (lface))) | |
4777 | font_name = LFACE_FONT (lface); | |
4778 | else | |
4779 | { | |
6e846fdc | 4780 | font_name = font_find_for_lface (f, &AREF (lface, 0), Qnil, -1); |
f4d3bea3 KH |
4781 | if (NILP (font_name)) |
4782 | error ("No font matches the specified attribute"); | |
de921524 KH |
4783 | font_name = font_open_for_lface (f, font_name, &AREF (lface, 0), |
4784 | Qnil); | |
f4d3bea3 KH |
4785 | if (NILP (font_name)) |
4786 | error ("No font matches the specified attribute"); | |
4787 | } | |
426b2119 KH |
4788 | } |
4789 | #endif | |
482cca61 GM |
4790 | else |
4791 | { | |
4792 | /* Choose a font name that reflects LFACE's attributes and has | |
4793 | the registry and encoding pattern specified in the default | |
4794 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
8f924df7 | 4795 | font = choose_face_font (f, XVECTOR (lface)->contents, Qnil, NULL); |
482cca61 GM |
4796 | if (!font) |
4797 | error ("No font matches the specified attribute"); | |
4798 | font_name = build_string (font); | |
4799 | xfree (font); | |
4800 | } | |
177c0ea7 | 4801 | |
a5f696ac | 4802 | f->default_face_done_p = 0; |
482cca61 GM |
4803 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4804 | } | |
82641697 GM |
4805 | } |
4806 | ||
4807 | ||
8bd201d6 GM |
4808 | /* Update the corresponding face when frame parameter PARAM on frame F |
4809 | has been assigned the value NEW_VALUE. */ | |
4810 | ||
4811 | void | |
4812 | update_face_from_frame_parameter (f, param, new_value) | |
4813 | struct frame *f; | |
4814 | Lisp_Object param, new_value; | |
4815 | { | |
46b00436 | 4816 | Lisp_Object face = Qnil; |
8bd201d6 GM |
4817 | Lisp_Object lface; |
4818 | ||
4819 | /* If there are no faces yet, give up. This is the case when called | |
4820 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4821 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4822 | if (NILP (f->face_alist)) |
4823 | return; | |
178c5d9c | 4824 | |
8bd201d6 GM |
4825 | if (EQ (param, Qforeground_color)) |
4826 | { | |
46b00436 KS |
4827 | face = Qdefault; |
4828 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4829 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
4830 | ? new_value : Qunspecified); | |
4831 | realize_basic_faces (f); | |
4832 | } | |
4833 | else if (EQ (param, Qbackground_color)) | |
4834 | { | |
92610620 GM |
4835 | Lisp_Object frame; |
4836 | ||
4837 | /* Changing the background color might change the background | |
c20577bc JL |
4838 | mode, so that we have to load new defface specs. |
4839 | Call frame-set-background-mode to do that. */ | |
92610620 | 4840 | XSETFRAME (frame, f); |
c20577bc | 4841 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 4842 | |
46b00436 KS |
4843 | face = Qdefault; |
4844 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4845 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4846 | ? new_value : Qunspecified); | |
4847 | realize_basic_faces (f); | |
4848 | } | |
46b00436 | 4849 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 4850 | { |
46b00436 KS |
4851 | face = Qborder; |
4852 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4853 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4854 | ? new_value : Qunspecified); | |
4855 | } | |
4856 | else if (EQ (param, Qcursor_color)) | |
4857 | { | |
46b00436 KS |
4858 | face = Qcursor; |
4859 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4860 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4861 | ? new_value : Qunspecified); | |
4862 | } | |
4863 | else if (EQ (param, Qmouse_color)) | |
4864 | { | |
46b00436 KS |
4865 | face = Qmouse; |
4866 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4867 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4868 | ? new_value : Qunspecified); | |
4869 | } | |
46b00436 KS |
4870 | |
4871 | /* Changing a named face means that all realized faces depending on | |
4872 | that face are invalid. Since we cannot tell which realized faces | |
4873 | depend on the face, make sure they are all removed. This is done | |
4874 | by incrementing face_change_count. The next call to | |
4875 | init_iterator will then free realized faces. */ | |
4876 | if (!NILP (face) | |
4877 | && NILP (Fget (face, Qface_no_inherit))) | |
4878 | { | |
4879 | ++face_change_count; | |
4880 | ++windows_or_buffers_changed; | |
4881 | } | |
8bd201d6 GM |
4882 | } |
4883 | ||
4884 | ||
82641697 GM |
4885 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4886 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4887 | doesn't take a frame argument. */ | |
4888 | ||
4889 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4890 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4891 | (resource, class, frame) | |
82641697 GM |
4892 | Lisp_Object resource, class, frame; |
4893 | { | |
c3cee013 | 4894 | Lisp_Object value = Qnil; |
b7826503 PJ |
4895 | CHECK_STRING (resource); |
4896 | CHECK_STRING (class); | |
4897 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4898 | BLOCK_INPUT; |
4899 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4900 | resource, class, Qnil, Qnil); | |
4901 | UNBLOCK_INPUT; | |
4902 | return value; | |
4903 | } | |
4904 | ||
4905 | ||
4906 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4907 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4908 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4909 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4910 | |
82641697 GM |
4911 | static Lisp_Object |
4912 | face_boolean_x_resource_value (value, signal_p) | |
4913 | Lisp_Object value; | |
4914 | int signal_p; | |
4915 | { | |
4916 | Lisp_Object result = make_number (0); | |
4917 | ||
4918 | xassert (STRINGP (value)); | |
178c5d9c | 4919 | |
d5db4077 KR |
4920 | if (xstricmp (SDATA (value), "on") == 0 |
4921 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4922 | result = Qt; |
d5db4077 KR |
4923 | else if (xstricmp (SDATA (value), "off") == 0 |
4924 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4925 | result = Qnil; |
d5db4077 | 4926 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4927 | result = Qunspecified; |
4928 | else if (signal_p) | |
4929 | signal_error ("Invalid face attribute value from X resource", value); | |
4930 | ||
4931 | return result; | |
4932 | } | |
4933 | ||
4934 | ||
4935 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4936 | Finternal_set_lisp_face_attribute_from_resource, | |
4937 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4938 | 3, 4, 0, doc: /* */) |
4939 | (face, attr, value, frame) | |
82641697 GM |
4940 | Lisp_Object face, attr, value, frame; |
4941 | { | |
b7826503 PJ |
4942 | CHECK_SYMBOL (face); |
4943 | CHECK_SYMBOL (attr); | |
4944 | CHECK_STRING (value); | |
82641697 | 4945 | |
d5db4077 | 4946 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4947 | value = Qunspecified; |
4948 | else if (EQ (attr, QCheight)) | |
4949 | { | |
4950 | value = Fstring_to_number (value, make_number (10)); | |
4951 | if (XINT (value) <= 0) | |
4952 | signal_error ("Invalid face height from X resource", value); | |
4953 | } | |
4954 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4955 | value = face_boolean_x_resource_value (value, 1); | |
4956 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4957 | value = intern (SDATA (value)); |
82641697 GM |
4958 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4959 | value = face_boolean_x_resource_value (value, 1); | |
4960 | else if (EQ (attr, QCunderline) | |
4961 | || EQ (attr, QCoverline) | |
27188d11 | 4962 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4963 | { |
4964 | Lisp_Object boolean_value; | |
4965 | ||
4966 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4967 | VALUE does NOT specify a color. */ | |
4968 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4969 | if (SYMBOLP (boolean_value)) | |
4970 | value = boolean_value; | |
4971 | } | |
0ad040ff | 4972 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
27188d11 | 4973 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
82641697 GM |
4974 | |
4975 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4976 | } | |
4977 | ||
c3cee013 | 4978 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4979 | |
c7ae3284 GM |
4980 | \f |
4981 | /*********************************************************************** | |
4982 | Menu face | |
4983 | ***********************************************************************/ | |
4984 | ||
bce72079 | 4985 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4986 | |
bce72079 GM |
4987 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4988 | ||
4989 | static void | |
4990 | x_update_menu_appearance (f) | |
c7ae3284 | 4991 | struct frame *f; |
c7ae3284 | 4992 | { |
a03ad468 | 4993 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4994 | XrmDatabase rdb; |
178c5d9c | 4995 | |
bce72079 GM |
4996 | if (dpyinfo |
4997 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4998 | rdb != NULL)) | |
c7ae3284 | 4999 | { |
bce72079 GM |
5000 | char line[512]; |
5001 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
5002 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 5003 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 5004 | int changed_p = 0; |
8ad582ac GM |
5005 | #ifdef USE_MOTIF |
5006 | const char *popup_path = "popup_menu"; | |
5007 | #else | |
5008 | const char *popup_path = "menu.popup"; | |
5009 | #endif | |
177c0ea7 | 5010 | |
bce72079 GM |
5011 | if (STRINGP (LFACE_FOREGROUND (lface))) |
5012 | { | |
8ad582ac GM |
5013 | sprintf (line, "%s.%s*foreground: %s", |
5014 | myname, popup_path, | |
d5db4077 | 5015 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
5016 | XrmPutLineResource (&rdb, line); |
5017 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 5018 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
5019 | XrmPutLineResource (&rdb, line); |
5020 | changed_p = 1; | |
5021 | } | |
178c5d9c | 5022 | |
bce72079 GM |
5023 | if (STRINGP (LFACE_BACKGROUND (lface))) |
5024 | { | |
8ad582ac GM |
5025 | sprintf (line, "%s.%s*background: %s", |
5026 | myname, popup_path, | |
d5db4077 | 5027 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5028 | XrmPutLineResource (&rdb, line); |
5029 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 5030 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5031 | XrmPutLineResource (&rdb, line); |
5032 | changed_p = 1; | |
5033 | } | |
177c0ea7 | 5034 | |
bce72079 GM |
5035 | if (face->font_name |
5036 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
5037 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
5038 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
5039 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5040 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
5041 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
5042 | { | |
a03ad468 | 5043 | #ifdef USE_MOTIF |
bce72079 | 5044 | const char *suffix = "List"; |
211f2210 | 5045 | Bool motif = True; |
a2d7e722 JD |
5046 | #else |
5047 | #if defined HAVE_X_I18N | |
5048 | ||
5049 | const char *suffix = "Set"; | |
a03ad468 | 5050 | #else |
bce72079 | 5051 | const char *suffix = ""; |
a2d7e722 | 5052 | #endif |
211f2210 | 5053 | Bool motif = False; |
2defe37f | 5054 | #endif |
211f2210 | 5055 | #if defined HAVE_X_I18N |
2defe37f SM |
5056 | extern char *xic_create_fontsetname |
5057 | P_ ((char *base_fontname, Bool motif)); | |
211f2210 | 5058 | char *fontsetname = xic_create_fontsetname (face->font_name, motif); |
2defe37f SM |
5059 | #else |
5060 | char *fontsetname = face->font_name; | |
bce72079 GM |
5061 | #endif |
5062 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
2defe37f | 5063 | myname, suffix, fontsetname); |
bce72079 | 5064 | XrmPutLineResource (&rdb, line); |
2eddf899 | 5065 | sprintf (line, "%s.%s*font%s: %s", |
2defe37f | 5066 | myname, popup_path, suffix, fontsetname); |
bce72079 GM |
5067 | XrmPutLineResource (&rdb, line); |
5068 | changed_p = 1; | |
211f2210 SM |
5069 | if (fontsetname != face->font_name) |
5070 | xfree (fontsetname); | |
bce72079 | 5071 | } |
c7ae3284 | 5072 | |
bce72079 | 5073 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 5074 | free_frame_menubar (f); |
c7ae3284 GM |
5075 | } |
5076 | } | |
5077 | ||
bce72079 | 5078 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
5079 | |
5080 | ||
177c0ea7 | 5081 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
5082 | Sface_attribute_relative_p, |
5083 | 2, 2, 0, | |
2d6228e7 RS |
5084 | doc: /* Check whether a face attribute value is relative. |
5085 | Specifically, this function returns t if the attribute ATTRIBUTE | |
5086 | with the value VALUE is relative. | |
5087 | ||
5088 | A relative value is one that doesn't entirely override whatever is | |
5089 | inherited from another face. For most possible attributes, | |
5090 | the only relative value that users see is `unspecified'. | |
5091 | However, for :height, floating point values are also relative. */) | |
cdfaafa9 | 5092 | (attribute, value) |
d0930289 | 5093 | Lisp_Object attribute, value; |
cdfaafa9 | 5094 | { |
05338727 | 5095 | if (EQ (value, Qunspecified) || (EQ (value, Qignore_defface))) |
cdfaafa9 MB |
5096 | return Qt; |
5097 | else if (EQ (attribute, QCheight)) | |
5098 | return INTEGERP (value) ? Qnil : Qt; | |
5099 | else | |
5100 | return Qnil; | |
5101 | } | |
5102 | ||
5103 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
5104 | 3, 3, 0, | |
5105 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
5106 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
5107 | the result will be absolute, otherwise it will be relative. */) | |
5108 | (attribute, value1, value2) | |
5109 | Lisp_Object attribute, value1, value2; | |
5110 | { | |
05338727 | 5111 | if (EQ (value1, Qunspecified) || EQ (value1, Qignore_defface)) |
cdfaafa9 MB |
5112 | return value2; |
5113 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 5114 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
5115 | else |
5116 | return value1; | |
5117 | } | |
5118 | ||
82641697 GM |
5119 | |
5120 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
5121 | Sinternal_get_lisp_face_attribute, | |
5122 | 2, 3, 0, | |
7ee72033 | 5123 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
5124 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
5125 | face attribute name, signal an error. | |
7fc92635 JB |
5126 | If the optional argument FRAME is given, report on face SYMBOL in that |
5127 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 MB |
5128 | frames). If FRAME is omitted or nil, use the selected frame. */) |
5129 | (symbol, keyword, frame) | |
82641697 GM |
5130 | Lisp_Object symbol, keyword, frame; |
5131 | { | |
5132 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 5133 | |
b7826503 PJ |
5134 | CHECK_SYMBOL (symbol); |
5135 | CHECK_SYMBOL (keyword); | |
82641697 GM |
5136 | |
5137 | if (EQ (frame, Qt)) | |
5138 | lface = lface_from_face_name (NULL, symbol, 1); | |
5139 | else | |
5140 | { | |
5141 | if (NILP (frame)) | |
c0617987 | 5142 | frame = selected_frame; |
b7826503 | 5143 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5144 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
5145 | } | |
5146 | ||
5147 | if (EQ (keyword, QCfamily)) | |
5148 | value = LFACE_FAMILY (lface); | |
5149 | else if (EQ (keyword, QCheight)) | |
5150 | value = LFACE_HEIGHT (lface); | |
5151 | else if (EQ (keyword, QCweight)) | |
5152 | value = LFACE_WEIGHT (lface); | |
5153 | else if (EQ (keyword, QCslant)) | |
5154 | value = LFACE_SLANT (lface); | |
5155 | else if (EQ (keyword, QCunderline)) | |
5156 | value = LFACE_UNDERLINE (lface); | |
5157 | else if (EQ (keyword, QCoverline)) | |
5158 | value = LFACE_OVERLINE (lface); | |
5159 | else if (EQ (keyword, QCstrike_through)) | |
5160 | value = LFACE_STRIKE_THROUGH (lface); | |
5161 | else if (EQ (keyword, QCbox)) | |
5162 | value = LFACE_BOX (lface); | |
5163 | else if (EQ (keyword, QCinverse_video) | |
5164 | || EQ (keyword, QCreverse_video)) | |
5165 | value = LFACE_INVERSE (lface); | |
5166 | else if (EQ (keyword, QCforeground)) | |
5167 | value = LFACE_FOREGROUND (lface); | |
5168 | else if (EQ (keyword, QCbackground)) | |
5169 | value = LFACE_BACKGROUND (lface); | |
5170 | else if (EQ (keyword, QCstipple)) | |
5171 | value = LFACE_STIPPLE (lface); | |
5172 | else if (EQ (keyword, QCwidth)) | |
5173 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
5174 | else if (EQ (keyword, QCinherit)) |
5175 | value = LFACE_INHERIT (lface); | |
39506348 KH |
5176 | else if (EQ (keyword, QCfont)) |
5177 | value = LFACE_FONT (lface); | |
763bc839 KH |
5178 | else if (EQ (keyword, QCfontset)) |
5179 | value = LFACE_FONTSET (lface); | |
82641697 GM |
5180 | else |
5181 | signal_error ("Invalid face attribute name", keyword); | |
5182 | ||
0268cef3 CY |
5183 | if (IGNORE_DEFFACE_P (value)) |
5184 | return Qunspecified; | |
5185 | ||
82641697 GM |
5186 | return value; |
5187 | } | |
5188 | ||
5189 | ||
5190 | DEFUN ("internal-lisp-face-attribute-values", | |
5191 | Finternal_lisp_face_attribute_values, | |
5192 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
5193 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
5194 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
5195 | (attr) | |
82641697 GM |
5196 | Lisp_Object attr; |
5197 | { | |
5198 | Lisp_Object result = Qnil; | |
178c5d9c | 5199 | |
b7826503 | 5200 | CHECK_SYMBOL (attr); |
178c5d9c | 5201 | |
82641697 GM |
5202 | if (EQ (attr, QCweight) |
5203 | || EQ (attr, QCslant) | |
5204 | || EQ (attr, QCwidth)) | |
5205 | { | |
5206 | /* Extract permissible symbols from tables. */ | |
5207 | struct table_entry *table; | |
5208 | int i, dim; | |
178c5d9c | 5209 | |
82641697 GM |
5210 | if (EQ (attr, QCweight)) |
5211 | table = weight_table, dim = DIM (weight_table); | |
5212 | else if (EQ (attr, QCslant)) | |
5213 | table = slant_table, dim = DIM (slant_table); | |
5214 | else | |
5215 | table = swidth_table, dim = DIM (swidth_table); | |
5216 | ||
5217 | for (i = 0; i < dim; ++i) | |
5218 | { | |
5219 | Lisp_Object symbol = *table[i].symbol; | |
5220 | Lisp_Object tail = result; | |
5221 | ||
5222 | while (!NILP (tail) | |
5223 | && !EQ (XCAR (tail), symbol)) | |
5224 | tail = XCDR (tail); | |
5225 | ||
5226 | if (NILP (tail)) | |
5227 | result = Fcons (symbol, result); | |
5228 | } | |
5229 | } | |
5230 | else if (EQ (attr, QCunderline)) | |
5231 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5232 | else if (EQ (attr, QCoverline)) | |
5233 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5234 | else if (EQ (attr, QCstrike_through)) | |
5235 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5236 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
5237 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5238 | ||
5239 | return result; | |
5240 | } | |
178c5d9c | 5241 | |
82641697 GM |
5242 | |
5243 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 5244 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 5245 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
5246 | Default face attributes override any local face attributes. */) |
5247 | (face, frame) | |
82641697 GM |
5248 | Lisp_Object face, frame; |
5249 | { | |
aad40737 MB |
5250 | int i; |
5251 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
5252 | ||
b7826503 | 5253 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5254 | global_lface = lface_from_face_name (NULL, face, 1); |
5255 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
5256 | if (NILP (local_lface)) | |
5257 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 5258 | |
cec33c90 SM |
5259 | /* Make every specified global attribute override the local one. |
5260 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
5261 | the local frame is defined from default specs in `face-defface-spec' | |
5262 | and those should be overridden by global settings. Hence the strange | |
5263 | "global before local" priority. */ | |
aad40737 MB |
5264 | lvec = XVECTOR (local_lface)->contents; |
5265 | gvec = XVECTOR (global_lface)->contents; | |
5266 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
5267 | if (! UNSPECIFIEDP (gvec[i])) | |
27d744ae YM |
5268 | { |
5269 | if (IGNORE_DEFFACE_P (gvec[i])) | |
5270 | lvec[i] = Qunspecified; | |
5271 | else | |
5272 | lvec[i] = gvec[i]; | |
5273 | } | |
334a2e2a GM |
5274 | |
5275 | return Qnil; | |
82641697 GM |
5276 | } |
5277 | ||
5278 | ||
5279 | /* The following function is implemented for compatibility with 20.2. | |
5280 | The function is used in x-resolve-fonts when it is asked to | |
5281 | return fonts with the same size as the font of a face. This is | |
5282 | done in fontset.el. */ | |
5283 | ||
2db4bfe5 | 5284 | DEFUN ("face-font", Fface_font, Sface_font, 1, 3, 0, |
e3cd9e7f | 5285 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
2db4bfe5 | 5286 | The font name is, by default, for ASCII characters. |
228299fa GM |
5287 | If the optional argument FRAME is given, report on face FACE in that frame. |
5288 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
5289 | The font default for a face is either nil, or a list | |
5290 | of the form (bold), (italic) or (bold italic). | |
2db4bfe5 KH |
5291 | If FRAME is omitted or nil, use the selected frame. And, in this case, |
5292 | if the optional third argument CHARACTER is given, | |
5293 | return the font name used for CHARACTER. */) | |
5294 | (face, frame, character) | |
5295 | Lisp_Object face, frame, character; | |
82641697 GM |
5296 | { |
5297 | if (EQ (frame, Qt)) | |
5298 | { | |
5299 | Lisp_Object result = Qnil; | |
5300 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
5301 | ||
5302 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5303 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
5304 | result = Fcons (Qbold, result); | |
178c5d9c | 5305 | |
0f2c6573 | 5306 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
5307 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
5308 | result = Fcons (Qitalic, result); | |
178c5d9c | 5309 | |
82641697 GM |
5310 | return result; |
5311 | } | |
5312 | else | |
5313 | { | |
5314 | struct frame *f = frame_or_selected_frame (frame, 1); | |
000fc2b1 | 5315 | int face_id = lookup_named_face (f, face, 1); |
82641697 | 5316 | struct face *face = FACE_FROM_ID (f, face_id); |
2db4bfe5 KH |
5317 | |
5318 | if (! face) | |
5319 | return Qnil; | |
a1a552b3 | 5320 | #ifdef HAVE_WINDOW_SYSTEM |
75dad34a | 5321 | if (FRAME_WINDOW_P (f) && !NILP (character)) |
a1a552b3 KH |
5322 | { |
5323 | CHECK_CHARACTER (character); | |
5324 | face_id = FACE_FOR_CHAR (f, face, XINT (character), -1, Qnil); | |
5325 | face = FACE_FROM_ID (f, face_id); | |
5326 | return (face->font && face->font_name | |
5327 | ? build_string (face->font_name) | |
5328 | : Qnil); | |
5329 | } | |
5330 | #endif | |
5331 | return build_string (face->font_name); | |
82641697 GM |
5332 | } |
5333 | } | |
5334 | ||
5335 | ||
9717e36c | 5336 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
5337 | all attributes are `equal'. Tries to be fast because this function |
5338 | is called quite often. */ | |
5339 | ||
5340 | static INLINE int | |
9717e36c | 5341 | face_attr_equal_p (v1, v2) |
3ebc0939 | 5342 | Lisp_Object v1, v2; |
82641697 | 5343 | { |
9717e36c MB |
5344 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
5345 | and the other is specified. */ | |
5346 | if (XTYPE (v1) != XTYPE (v2)) | |
5347 | return 0; | |
82641697 | 5348 | |
9717e36c MB |
5349 | if (EQ (v1, v2)) |
5350 | return 1; | |
82641697 | 5351 | |
9717e36c MB |
5352 | switch (XTYPE (v1)) |
5353 | { | |
5354 | case Lisp_String: | |
5355 | if (SBYTES (v1) != SBYTES (v2)) | |
5356 | return 0; | |
82641697 | 5357 | |
9717e36c | 5358 | return bcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 5359 | |
9717e36c MB |
5360 | case Lisp_Int: |
5361 | case Lisp_Symbol: | |
5362 | return 0; | |
178c5d9c | 5363 | |
9717e36c MB |
5364 | default: |
5365 | return !NILP (Fequal (v1, v2)); | |
82641697 | 5366 | } |
9717e36c MB |
5367 | } |
5368 | ||
5369 | ||
5370 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
5371 | all attributes are `equal'. Tries to be fast because this function | |
5372 | is called quite often. */ | |
5373 | ||
5374 | static INLINE int | |
5375 | lface_equal_p (v1, v2) | |
5376 | Lisp_Object *v1, *v2; | |
5377 | { | |
5378 | int i, equal_p = 1; | |
5379 | ||
5380 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
5381 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 5382 | |
82641697 GM |
5383 | return equal_p; |
5384 | } | |
5385 | ||
5386 | ||
5387 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
5388 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 5389 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
5390 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
5391 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 MB |
5392 | If FRAME is omitted or nil, use the selected frame. */) |
5393 | (face1, face2, frame) | |
82641697 GM |
5394 | Lisp_Object face1, face2, frame; |
5395 | { | |
5396 | int equal_p; | |
7b953c9c | 5397 | struct frame *f; |
82641697 | 5398 | Lisp_Object lface1, lface2; |
178c5d9c | 5399 | |
7b953c9c MB |
5400 | if (EQ (frame, Qt)) |
5401 | f = NULL; | |
5402 | else | |
5403 | /* Don't use check_x_frame here because this function is called | |
5404 | before X frames exist. At that time, if FRAME is nil, | |
5405 | selected_frame will be used which is the frame dumped with | |
5406 | Emacs. That frame is not an X frame. */ | |
5407 | f = frame_or_selected_frame (frame, 2); | |
5408 | ||
03f11322 JB |
5409 | lface1 = lface_from_face_name (f, face1, 1); |
5410 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
5411 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
5412 | XVECTOR (lface2)->contents); | |
5413 | return equal_p ? Qt : Qnil; | |
5414 | } | |
5415 | ||
178c5d9c | 5416 | |
82641697 GM |
5417 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
5418 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 5419 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
5420 | If the optional argument FRAME is given, report on face FACE in that frame. |
5421 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
5422 | If FRAME is omitted or nil, use the selected frame. */) |
5423 | (face, frame) | |
82641697 GM |
5424 | Lisp_Object face, frame; |
5425 | { | |
5426 | struct frame *f; | |
5427 | Lisp_Object lface; | |
5428 | int i; | |
5429 | ||
5430 | if (NILP (frame)) | |
c0617987 | 5431 | frame = selected_frame; |
b7826503 | 5432 | CHECK_LIVE_FRAME (frame); |
c0617987 | 5433 | f = XFRAME (frame); |
178c5d9c | 5434 | |
82641697 GM |
5435 | if (EQ (frame, Qt)) |
5436 | lface = lface_from_face_name (NULL, face, 1); | |
5437 | else | |
5438 | lface = lface_from_face_name (f, face, 1); | |
5439 | ||
5440 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 5441 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 5442 | break; |
178c5d9c | 5443 | |
82641697 GM |
5444 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
5445 | } | |
5446 | ||
5447 | ||
5448 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 5449 | 0, 1, 0, |
7ee72033 MB |
5450 | doc: /* Return an alist of frame-local faces defined on FRAME. |
5451 | For internal use only. */) | |
5452 | (frame) | |
82641697 GM |
5453 | Lisp_Object frame; |
5454 | { | |
5455 | struct frame *f = frame_or_selected_frame (frame, 0); | |
5456 | return f->face_alist; | |
5457 | } | |
5458 | ||
5459 | ||
5460 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
5461 | below in computing a hash value for a Lisp face. */ | |
5462 | ||
5463 | static INLINE unsigned | |
5464 | hash_string_case_insensitive (string) | |
5465 | Lisp_Object string; | |
5466 | { | |
53c208f6 | 5467 | const unsigned char *s; |
82641697 GM |
5468 | unsigned hash = 0; |
5469 | xassert (STRINGP (string)); | |
d5db4077 | 5470 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
5471 | hash = (hash << 1) ^ tolower (*s); |
5472 | return hash; | |
5473 | } | |
5474 | ||
5475 | ||
5476 | /* Return a hash code for face attribute vector V. */ | |
5477 | ||
5478 | static INLINE unsigned | |
5479 | lface_hash (v) | |
5480 | Lisp_Object *v; | |
5481 | { | |
5482 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
5483 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
5484 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
5485 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
5486 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
5487 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
5488 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
5489 | } | |
5490 | ||
5491 | ||
5492 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
5493 | considering charsets/registries). They do if they specify the same | |
763bc839 KH |
5494 | family, point size, weight, width, slant, font, and fontset. Both |
5495 | LFACE1 and LFACE2 must be fully-specified. */ | |
82641697 GM |
5496 | |
5497 | static INLINE int | |
5498 | lface_same_font_attributes_p (lface1, lface2) | |
5499 | Lisp_Object *lface1, *lface2; | |
5500 | { | |
5501 | xassert (lface_fully_specified_p (lface1) | |
5502 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
5503 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
5504 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 5505 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 5506 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 5507 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 5508 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
5509 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
5510 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
5511 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 5512 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
8f924df7 KH |
5513 | && ! xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
5514 | SDATA (lface2[LFACE_FONT_INDEX])))) | |
763bc839 KH |
5515 | && (EQ (lface1[LFACE_FONTSET_INDEX], lface2[LFACE_FONTSET_INDEX]) |
5516 | || (STRINGP (lface1[LFACE_FONTSET_INDEX]) | |
5517 | && STRINGP (lface2[LFACE_FONTSET_INDEX]) | |
8f924df7 KH |
5518 | && ! xstricmp (SDATA (lface1[LFACE_FONTSET_INDEX]), |
5519 | SDATA (lface2[LFACE_FONTSET_INDEX])))) | |
763bc839 | 5520 | ); |
82641697 GM |
5521 | } |
5522 | ||
5523 | ||
5524 | \f | |
5525 | /*********************************************************************** | |
5526 | Realized Faces | |
5527 | ***********************************************************************/ | |
5528 | ||
5529 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 5530 | vector ATTR. */ |
82641697 GM |
5531 | |
5532 | static struct face * | |
39506348 | 5533 | make_realized_face (attr) |
82641697 | 5534 | Lisp_Object *attr; |
82641697 GM |
5535 | { |
5536 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5537 | bzero (face, sizeof *face); | |
39506348 | 5538 | face->ascii_face = face; |
82641697 GM |
5539 | bcopy (attr, face->lface, sizeof face->lface); |
5540 | return face; | |
5541 | } | |
5542 | ||
5543 | ||
5544 | /* Free realized face FACE, including its X resources. FACE may | |
5545 | be null. */ | |
5546 | ||
81b39386 | 5547 | void |
82641697 GM |
5548 | free_realized_face (f, face) |
5549 | struct frame *f; | |
5550 | struct face *face; | |
5551 | { | |
5552 | if (face) | |
5553 | { | |
c3cee013 JR |
5554 | #ifdef HAVE_WINDOW_SYSTEM |
5555 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5556 | { |
39506348 KH |
5557 | /* Free fontset of FACE if it is ASCII face. */ |
5558 | if (face->fontset >= 0 && face == face->ascii_face) | |
5559 | free_face_fontset (f, face); | |
82641697 GM |
5560 | if (face->gc) |
5561 | { | |
985773c9 | 5562 | BLOCK_INPUT; |
426b2119 KH |
5563 | #ifdef USE_FONT_BACKEND |
5564 | if (enable_font_backend && face->font_info) | |
5565 | font_done_for_face (f, face); | |
5566 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5567 | x_free_gc (f, face->gc); |
5568 | face->gc = 0; | |
ed0c79c6 | 5569 | UNBLOCK_INPUT; |
82641697 | 5570 | } |
178c5d9c | 5571 | |
82641697 GM |
5572 | free_face_colors (f, face); |
5573 | x_destroy_bitmap (f, face->stipple); | |
5574 | } | |
c3cee013 | 5575 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5576 | |
5577 | xfree (face); | |
5578 | } | |
5579 | } | |
5580 | ||
5581 | ||
5582 | /* Prepare face FACE for subsequent display on frame F. This | |
5583 | allocated GCs if they haven't been allocated yet or have been freed | |
5584 | by clearing the face cache. */ | |
5585 | ||
5586 | void | |
5587 | prepare_face_for_display (f, face) | |
5588 | struct frame *f; | |
5589 | struct face *face; | |
5590 | { | |
c3cee013 JR |
5591 | #ifdef HAVE_WINDOW_SYSTEM |
5592 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5593 | |
82641697 GM |
5594 | if (face->gc == 0) |
5595 | { | |
5596 | XGCValues xgcv; | |
5597 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5598 | ||
5599 | xgcv.foreground = face->foreground; | |
5600 | xgcv.background = face->background; | |
c3cee013 | 5601 | #ifdef HAVE_X_WINDOWS |
82641697 | 5602 | xgcv.graphics_exposures = False; |
c3cee013 | 5603 | #endif |
82641697 GM |
5604 | /* The font of FACE may be null if we couldn't load it. */ |
5605 | if (face->font) | |
5606 | { | |
c3cee013 | 5607 | #ifdef HAVE_X_WINDOWS |
82641697 | 5608 | xgcv.font = face->font->fid; |
c3cee013 JR |
5609 | #endif |
5610 | #ifdef WINDOWSNT | |
5611 | xgcv.font = face->font; | |
1a578e9b | 5612 | #endif |
e0f712ba | 5613 | #ifdef MAC_OS |
1a578e9b | 5614 | xgcv.font = face->font; |
c3cee013 | 5615 | #endif |
82641697 GM |
5616 | mask |= GCFont; |
5617 | } | |
5618 | ||
5619 | BLOCK_INPUT; | |
c3cee013 | 5620 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5621 | if (face->stipple) |
5622 | { | |
be8a72f4 | 5623 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5624 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5625 | mask |= GCFillStyle | GCStipple; | |
5626 | } | |
c3cee013 | 5627 | #endif |
82641697 | 5628 | face->gc = x_create_gc (f, mask, &xgcv); |
426b2119 KH |
5629 | #ifdef USE_FONT_BACKEND |
5630 | if (enable_font_backend && face->font) | |
5631 | font_prepare_for_face (f, face); | |
5632 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5633 | UNBLOCK_INPUT; |
5634 | } | |
c3cee013 | 5635 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5636 | } |
5637 | ||
82641697 | 5638 | \f |
b35df831 MB |
5639 | /* Returns the `distance' between the colors X and Y. */ |
5640 | ||
5641 | static int | |
5642 | color_distance (x, y) | |
5643 | XColor *x, *y; | |
5644 | { | |
5645 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5646 | Quoting from that paper: | |
5647 | ||
5648 | This formula has results that are very close to L*u*v* (with the | |
5649 | modified lightness curve) and, more importantly, it is a more even | |
5650 | algorithm: it does not have a range of colours where it suddenly | |
5651 | gives far from optimal results. | |
5652 | ||
5653 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5654 | ||
5655 | long r = (x->red - y->red) >> 8; | |
5656 | long g = (x->green - y->green) >> 8; | |
5657 | long b = (x->blue - y->blue) >> 8; | |
5658 | long r_mean = (x->red + y->red) >> 9; | |
5659 | ||
5660 | return | |
5661 | (((512 + r_mean) * r * r) >> 8) | |
5662 | + 4 * g * g | |
5663 | + (((767 - r_mean) * b * b) >> 8); | |
5664 | } | |
5665 | ||
5666 | ||
5667 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5668 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5669 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5670 | or lists of the form (RED GREEN BLUE). | |
5671 | If FRAME is unspecified or nil, the current frame is used. */) | |
5672 | (color1, color2, frame) | |
5673 | Lisp_Object color1, color2, frame; | |
5674 | { | |
5675 | struct frame *f; | |
5676 | XColor cdef1, cdef2; | |
5677 | ||
5678 | if (NILP (frame)) | |
5679 | frame = selected_frame; | |
5680 | CHECK_LIVE_FRAME (frame); | |
5681 | f = XFRAME (frame); | |
5682 | ||
6c8e1d62 JB |
5683 | if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1)) |
5684 | && !(STRINGP (color1) && defined_color (f, SDATA (color1), &cdef1, 0))) | |
b35df831 | 5685 | signal_error ("Invalid color", color1); |
6c8e1d62 JB |
5686 | if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2)) |
5687 | && !(STRINGP (color2) && defined_color (f, SDATA (color2), &cdef2, 0))) | |
b35df831 MB |
5688 | signal_error ("Invalid color", color2); |
5689 | ||
5690 | return make_number (color_distance (&cdef1, &cdef2)); | |
5691 | } | |
5692 | ||
5693 | \f | |
82641697 GM |
5694 | /*********************************************************************** |
5695 | Face Cache | |
5696 | ***********************************************************************/ | |
5697 | ||
5698 | /* Return a new face cache for frame F. */ | |
5699 | ||
5700 | static struct face_cache * | |
5701 | make_face_cache (f) | |
5702 | struct frame *f; | |
5703 | { | |
5704 | struct face_cache *c; | |
5705 | int size; | |
5706 | ||
5707 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5708 | bzero (c, sizeof *c); | |
5709 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5710 | c->buckets = (struct face **) xmalloc (size); | |
5711 | bzero (c->buckets, size); | |
5712 | c->size = 50; | |
5713 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5714 | c->f = f; | |
ceeda019 | 5715 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5716 | return c; |
5717 | } | |
5718 | ||
5719 | ||
5720 | /* Clear out all graphics contexts for all realized faces, except for | |
5721 | the basic faces. This should be done from time to time just to avoid | |
5722 | keeping too many graphics contexts that are no longer needed. */ | |
5723 | ||
5724 | static void | |
5725 | clear_face_gcs (c) | |
5726 | struct face_cache *c; | |
5727 | { | |
c3cee013 | 5728 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5729 | { |
c3cee013 | 5730 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5731 | int i; |
5732 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5733 | { | |
5734 | struct face *face = c->faces_by_id[i]; | |
5735 | if (face && face->gc) | |
5736 | { | |
985773c9 | 5737 | BLOCK_INPUT; |
426b2119 KH |
5738 | #ifdef USE_FONT_BACKEND |
5739 | if (enable_font_backend && face->font_info) | |
5740 | font_done_for_face (c->f, face); | |
5741 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5742 | x_free_gc (c->f, face->gc); |
5743 | face->gc = 0; | |
ed0c79c6 | 5744 | UNBLOCK_INPUT; |
82641697 GM |
5745 | } |
5746 | } | |
c3cee013 | 5747 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5748 | } |
5749 | } | |
5750 | ||
5751 | ||
7fc92635 JB |
5752 | /* Free all realized faces in face cache C, including basic faces. |
5753 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
5754 | matrix is marked invalid, so that a display caused by an expose |
5755 | event doesn't try to use faces we destroyed. */ | |
5756 | ||
5757 | static void | |
5758 | free_realized_faces (c) | |
5759 | struct face_cache *c; | |
5760 | { | |
5761 | if (c && c->used) | |
5762 | { | |
5763 | int i, size; | |
5764 | struct frame *f = c->f; | |
5765 | ||
84ec3b4b GM |
5766 | /* We must block input here because we can't process X events |
5767 | safely while only some faces are freed, or when the frame's | |
5768 | current matrix still references freed faces. */ | |
5769 | BLOCK_INPUT; | |
5770 | ||
82641697 GM |
5771 | for (i = 0; i < c->used; ++i) |
5772 | { | |
5773 | free_realized_face (f, c->faces_by_id[i]); | |
5774 | c->faces_by_id[i] = NULL; | |
5775 | } | |
178c5d9c | 5776 | |
82641697 GM |
5777 | c->used = 0; |
5778 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5779 | bzero (c->buckets, size); | |
5780 | ||
5781 | /* Must do a thorough redisplay the next time. Mark current | |
5782 | matrices as invalid because they will reference faces freed | |
5783 | above. This function is also called when a frame is | |
5784 | destroyed. In this case, the root window of F is nil. */ | |
5785 | if (WINDOWP (f->root_window)) | |
5786 | { | |
5787 | clear_current_matrices (f); | |
5788 | ++windows_or_buffers_changed; | |
5789 | } | |
84ec3b4b GM |
5790 | |
5791 | UNBLOCK_INPUT; | |
82641697 GM |
5792 | } |
5793 | } | |
5794 | ||
5795 | ||
81b39386 | 5796 | /* Free all realized faces that are using FONTSET on frame F. */ |
39506348 KH |
5797 | |
5798 | void | |
81b39386 | 5799 | free_realized_faces_for_fontset (f, fontset) |
39506348 KH |
5800 | struct frame *f; |
5801 | int fontset; | |
5802 | { | |
5803 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5804 | struct face *face; | |
5805 | int i; | |
5806 | ||
84ec3b4b GM |
5807 | /* We must block input here because we can't process X events safely |
5808 | while only some faces are freed, or when the frame's current | |
5809 | matrix still references freed faces. */ | |
5810 | BLOCK_INPUT; | |
178c5d9c | 5811 | |
39506348 KH |
5812 | for (i = 0; i < cache->used; i++) |
5813 | { | |
5814 | face = cache->faces_by_id[i]; | |
5815 | if (face | |
39506348 KH |
5816 | && face->fontset == fontset) |
5817 | { | |
5818 | uncache_face (cache, face); | |
5819 | free_realized_face (f, face); | |
5820 | } | |
5821 | } | |
178c5d9c | 5822 | |
84ec3b4b GM |
5823 | /* Must do a thorough redisplay the next time. Mark current |
5824 | matrices as invalid because they will reference faces freed | |
5825 | above. This function is also called when a frame is destroyed. | |
5826 | In this case, the root window of F is nil. */ | |
39506348 KH |
5827 | if (WINDOWP (f->root_window)) |
5828 | { | |
5829 | clear_current_matrices (f); | |
5830 | ++windows_or_buffers_changed; | |
5831 | } | |
178c5d9c | 5832 | |
84ec3b4b | 5833 | UNBLOCK_INPUT; |
39506348 KH |
5834 | } |
5835 | ||
5836 | ||
82641697 GM |
5837 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5838 | This is done after attributes of a named face have been changed, | |
5839 | because we can't tell which realized faces depend on that face. */ | |
5840 | ||
5841 | void | |
5842 | free_all_realized_faces (frame) | |
5843 | Lisp_Object frame; | |
5844 | { | |
5845 | if (NILP (frame)) | |
5846 | { | |
5847 | Lisp_Object rest; | |
5848 | FOR_EACH_FRAME (rest, frame) | |
5849 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5850 | } | |
5851 | else | |
5852 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5853 | } | |
5854 | ||
5855 | ||
5856 | /* Free face cache C and faces in it, including their X resources. */ | |
5857 | ||
5858 | static void | |
5859 | free_face_cache (c) | |
5860 | struct face_cache *c; | |
5861 | { | |
5862 | if (c) | |
5863 | { | |
5864 | free_realized_faces (c); | |
5865 | xfree (c->buckets); | |
5866 | xfree (c->faces_by_id); | |
5867 | xfree (c); | |
5868 | } | |
5869 | } | |
5870 | ||
5871 | ||
5872 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
af53b43c KH |
5873 | of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face == |
5874 | FACE), insert the new face to the beginning of the collision list | |
5875 | of the face hash table of C. Otherwise, add the new face to the | |
5876 | end of the collision list. This way, lookup_face can quickly find | |
5877 | that a requested face is not cached. */ | |
82641697 GM |
5878 | |
5879 | static void | |
5880 | cache_face (c, face, hash) | |
5881 | struct face_cache *c; | |
5882 | struct face *face; | |
5883 | unsigned hash; | |
5884 | { | |
5885 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5886 | ||
5887 | face->hash = hash; | |
5888 | ||
af53b43c | 5889 | if (face->ascii_face != face) |
82641697 GM |
5890 | { |
5891 | struct face *last = c->buckets[i]; | |
5892 | if (last) | |
5893 | { | |
5894 | while (last->next) | |
5895 | last = last->next; | |
5896 | last->next = face; | |
5897 | face->prev = last; | |
5898 | face->next = NULL; | |
5899 | } | |
5900 | else | |
5901 | { | |
5902 | c->buckets[i] = face; | |
5903 | face->prev = face->next = NULL; | |
5904 | } | |
5905 | } | |
5906 | else | |
5907 | { | |
5908 | face->prev = NULL; | |
5909 | face->next = c->buckets[i]; | |
5910 | if (face->next) | |
5911 | face->next->prev = face; | |
5912 | c->buckets[i] = face; | |
5913 | } | |
5914 | ||
5915 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5916 | slot as FACE->id. */ | |
5917 | for (i = 0; i < c->used; ++i) | |
5918 | if (c->faces_by_id[i] == NULL) | |
5919 | break; | |
5920 | face->id = i; | |
178c5d9c | 5921 | |
82641697 | 5922 | /* Maybe enlarge C->faces_by_id. */ |
6b61353c | 5923 | if (i == c->used) |
82641697 | 5924 | { |
6b61353c KH |
5925 | if (c->used == c->size) |
5926 | { | |
5927 | int new_size, sz; | |
5928 | new_size = min (2 * c->size, MAX_FACE_ID); | |
5929 | if (new_size == c->size) | |
5930 | abort (); /* Alternatives? ++kfs */ | |
5931 | sz = new_size * sizeof *c->faces_by_id; | |
5932 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5933 | c->size = new_size; | |
5934 | } | |
5935 | c->used++; | |
82641697 GM |
5936 | } |
5937 | ||
5938 | #if GLYPH_DEBUG | |
5939 | /* Check that FACE got a unique id. */ | |
5940 | { | |
5941 | int j, n; | |
5942 | struct face *face; | |
5943 | ||
5944 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5945 | for (face = c->buckets[j]; face; face = face->next) | |
5946 | if (face->id == i) | |
5947 | ++n; | |
5948 | ||
5949 | xassert (n == 1); | |
5950 | } | |
5951 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5952 | |
82641697 | 5953 | c->faces_by_id[i] = face; |
82641697 GM |
5954 | } |
5955 | ||
5956 | ||
5957 | /* Remove face FACE from cache C. */ | |
5958 | ||
5959 | static void | |
5960 | uncache_face (c, face) | |
5961 | struct face_cache *c; | |
5962 | struct face *face; | |
5963 | { | |
5964 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5965 | |
82641697 GM |
5966 | if (face->prev) |
5967 | face->prev->next = face->next; | |
5968 | else | |
5969 | c->buckets[i] = face->next; | |
178c5d9c | 5970 | |
82641697 GM |
5971 | if (face->next) |
5972 | face->next->prev = face->prev; | |
178c5d9c | 5973 | |
82641697 GM |
5974 | c->faces_by_id[face->id] = NULL; |
5975 | if (face->id == c->used) | |
5976 | --c->used; | |
5977 | } | |
5978 | ||
5979 | ||
5980 | /* Look up a realized face with face attributes ATTR in the face cache | |
af53b43c KH |
5981 | of frame F. The face will be used to display ASCII characters. |
5982 | Value is the ID of the face found. If no suitable face is found, | |
5983 | realize a new one. */ | |
82641697 GM |
5984 | |
5985 | INLINE int | |
af53b43c | 5986 | lookup_face (f, attr) |
82641697 GM |
5987 | struct frame *f; |
5988 | Lisp_Object *attr; | |
82641697 | 5989 | { |
39506348 | 5990 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5991 | unsigned hash; |
5992 | int i; | |
5993 | struct face *face; | |
5994 | ||
39506348 | 5995 | xassert (cache != NULL); |
82641697 GM |
5996 | check_lface_attrs (attr); |
5997 | ||
5998 | /* Look up ATTR in the face cache. */ | |
5999 | hash = lface_hash (attr); | |
6000 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 6001 | |
39506348 | 6002 | for (face = cache->buckets[i]; face; face = face->next) |
af53b43c KH |
6003 | { |
6004 | if (face->ascii_face != face) | |
6005 | { | |
6006 | /* There's no more ASCII face. */ | |
6007 | face = NULL; | |
6008 | break; | |
6009 | } | |
6010 | if (face->hash == hash | |
6011 | && lface_equal_p (face->lface, attr)) | |
6012 | break; | |
6013 | } | |
82641697 GM |
6014 | |
6015 | /* If not found, realize a new face. */ | |
6016 | if (face == NULL) | |
af53b43c | 6017 | face = realize_face (cache, attr, -1); |
82641697 GM |
6018 | |
6019 | #if GLYPH_DEBUG | |
6020 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 6021 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 6022 | |
82641697 GM |
6023 | return face->id; |
6024 | } | |
6025 | ||
8c6204de | 6026 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
6027 | /* Look up a realized face that has the same attributes as BASE_FACE |
6028 | except for the font in the face cache of frame F. If FONT_ID is | |
6029 | not negative, it is an ID number of an already opened font that is | |
6030 | used by the face. If FONT_ID is negative, the face has no font. | |
6031 | Value is the ID of the face found. If no suitable face is found, | |
6032 | realize a new one. */ | |
6033 | ||
8f924df7 | 6034 | int |
af53b43c KH |
6035 | lookup_non_ascii_face (f, font_id, base_face) |
6036 | struct frame *f; | |
6037 | int font_id; | |
6038 | struct face *base_face; | |
6039 | { | |
6040 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6041 | unsigned hash; | |
6042 | int i; | |
6043 | struct face *face; | |
6044 | ||
6045 | xassert (cache != NULL); | |
6046 | base_face = base_face->ascii_face; | |
6047 | hash = lface_hash (base_face->lface); | |
6048 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6049 | ||
6050 | for (face = cache->buckets[i]; face; face = face->next) | |
6051 | { | |
6052 | if (face->ascii_face == face) | |
6053 | continue; | |
6054 | if (face->ascii_face == base_face | |
6055 | && face->font_info_id == font_id) | |
6056 | break; | |
6057 | } | |
6058 | ||
6059 | /* If not found, realize a new face. */ | |
6060 | if (face == NULL) | |
6061 | face = realize_non_ascii_face (f, font_id, base_face); | |
6062 | ||
6063 | #if GLYPH_DEBUG | |
6064 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 6065 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 6066 | |
82641697 GM |
6067 | return face->id; |
6068 | } | |
426b2119 KH |
6069 | |
6070 | #ifdef USE_FONT_BACKEND | |
6071 | int | |
6072 | face_for_font (f, font, base_face) | |
6073 | struct frame *f; | |
6074 | struct font *font; | |
6075 | struct face *base_face; | |
6076 | { | |
6077 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6078 | unsigned hash; | |
6079 | int i; | |
6080 | struct face *face; | |
6081 | ||
6082 | xassert (cache != NULL); | |
6083 | base_face = base_face->ascii_face; | |
6084 | hash = lface_hash (base_face->lface); | |
6085 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6086 | ||
6087 | for (face = cache->buckets[i]; face; face = face->next) | |
6088 | { | |
6089 | if (face->ascii_face == face) | |
6090 | continue; | |
6091 | if (face->ascii_face == base_face | |
a0b61ddb | 6092 | && face->font == font->font.font |
426b2119 KH |
6093 | && face->font_info == (struct font_info *) font) |
6094 | return face->id; | |
6095 | } | |
6096 | ||
6097 | /* If not found, realize a new face. */ | |
6098 | face = realize_non_ascii_face (f, -1, base_face); | |
6099 | face->font = font->font.font; | |
6100 | face->font_info = (struct font_info *) font; | |
6101 | face->font_info_id = 0; | |
6102 | face->font_name = font->font.full_name; | |
6103 | return face->id; | |
6104 | } | |
6105 | #endif /* USE_FONT_BACKEND */ | |
6106 | ||
8c6204de | 6107 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6108 | |
82641697 | 6109 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6110 | frame F suitable for displaying ASCII characters. Value is -1 if |
6111 | the face couldn't be determined, which might happen if the default | |
6112 | face isn't realized and cannot be realized. */ | |
82641697 GM |
6113 | |
6114 | int | |
000fc2b1 | 6115 | lookup_named_face (f, symbol, signal_p) |
82641697 GM |
6116 | struct frame *f; |
6117 | Lisp_Object symbol; | |
2272e967 | 6118 | int signal_p; |
82641697 | 6119 | { |
e7d7fd8c MB |
6120 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6121 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6122 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6123 | ||
b5de343d GM |
6124 | if (default_face == NULL) |
6125 | { | |
6126 | if (!realize_basic_faces (f)) | |
6127 | return -1; | |
6128 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
418ca4d2 RS |
6129 | if (default_face == NULL) |
6130 | abort (); /* realize_basic_faces must have set it up */ | |
b5de343d GM |
6131 | } |
6132 | ||
e7d7fd8c | 6133 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p)) |
2272e967 KS |
6134 | return -1; |
6135 | ||
82641697 | 6136 | bcopy (default_face->lface, attrs, sizeof attrs); |
e7d7fd8c | 6137 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
a0a23346 | 6138 | |
af53b43c | 6139 | return lookup_face (f, attrs); |
82641697 GM |
6140 | } |
6141 | ||
6142 | ||
6143 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
6144 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
6145 | ||
6146 | int | |
6147 | ascii_face_of_lisp_face (f, lface_id) | |
6148 | struct frame *f; | |
6149 | int lface_id; | |
6150 | { | |
6151 | int face_id; | |
178c5d9c | 6152 | |
82641697 GM |
6153 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
6154 | { | |
6155 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
000fc2b1 | 6156 | face_id = lookup_named_face (f, face_name, 1); |
82641697 GM |
6157 | } |
6158 | else | |
6159 | face_id = -1; | |
6160 | ||
6161 | return face_id; | |
6162 | } | |
6163 | ||
6164 | ||
6165 | /* Return a face for charset ASCII that is like the face with id | |
6166 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
6167 | STEPS < 0 means larger. Value is the id of the face. */ | |
6168 | ||
6169 | int | |
6170 | smaller_face (f, face_id, steps) | |
6171 | struct frame *f; | |
6172 | int face_id, steps; | |
39506348 | 6173 | { |
c3cee013 | 6174 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6175 | struct face *face; |
6176 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6177 | int pt, last_pt, last_height; | |
6178 | int delta; | |
6179 | int new_face_id; | |
6180 | struct face *new_face; | |
6181 | ||
6182 | /* If not called for an X frame, just return the original face. */ | |
6183 | if (FRAME_TERMCAP_P (f)) | |
6184 | return face_id; | |
6185 | ||
6186 | /* Try in increments of 1/2 pt. */ | |
6187 | delta = steps < 0 ? 5 : -5; | |
1ea40aa2 | 6188 | steps = eabs (steps); |
178c5d9c | 6189 | |
82641697 GM |
6190 | face = FACE_FROM_ID (f, face_id); |
6191 | bcopy (face->lface, attrs, sizeof attrs); | |
6192 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6193 | new_face_id = face_id; | |
6194 | last_height = FONT_HEIGHT (face->font); | |
6195 | ||
6196 | while (steps | |
6197 | && pt + delta > 0 | |
6198 | /* Give up if we cannot find a font within 10pt. */ | |
1ea40aa2 | 6199 | && eabs (last_pt - pt) < 100) |
82641697 GM |
6200 | { |
6201 | /* Look up a face for a slightly smaller/larger font. */ | |
6202 | pt += delta; | |
6203 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
af53b43c | 6204 | new_face_id = lookup_face (f, attrs); |
82641697 GM |
6205 | new_face = FACE_FROM_ID (f, new_face_id); |
6206 | ||
6207 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
6208 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
6209 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
6210 | { |
6211 | --steps; | |
6212 | last_height = FONT_HEIGHT (new_face->font); | |
6213 | last_pt = pt; | |
6214 | } | |
6215 | } | |
6216 | ||
6217 | return new_face_id; | |
6218 | ||
c3cee013 | 6219 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6220 | |
6221 | return face_id; | |
178c5d9c | 6222 | |
c3cee013 | 6223 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6224 | } |
6225 | ||
6226 | ||
6227 | /* Return a face for charset ASCII that is like the face with id | |
6228 | FACE_ID on frame F, but has height HEIGHT. */ | |
6229 | ||
6230 | int | |
6231 | face_with_height (f, face_id, height) | |
6232 | struct frame *f; | |
6233 | int face_id; | |
6234 | int height; | |
6235 | { | |
c3cee013 | 6236 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6237 | struct face *face; |
6238 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6239 | ||
6240 | if (FRAME_TERMCAP_P (f) | |
6241 | || height <= 0) | |
6242 | return face_id; | |
6243 | ||
6244 | face = FACE_FROM_ID (f, face_id); | |
6245 | bcopy (face->lface, attrs, sizeof attrs); | |
6246 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
af53b43c | 6247 | face_id = lookup_face (f, attrs); |
c3cee013 | 6248 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 6249 | |
82641697 GM |
6250 | return face_id; |
6251 | } | |
6252 | ||
b5de343d | 6253 | |
44747bd0 | 6254 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6255 | frame F suitable for displaying ASCII characters, and use |
6256 | attributes of the face FACE_ID for attributes that aren't | |
6257 | completely specified by SYMBOL. This is like lookup_named_face, | |
6258 | except that the default attributes come from FACE_ID, not from the | |
6259 | default face. FACE_ID is assumed to be already realized. */ | |
44747bd0 EZ |
6260 | |
6261 | int | |
5c538596 | 6262 | lookup_derived_face (f, symbol, face_id, signal_p) |
44747bd0 EZ |
6263 | struct frame *f; |
6264 | Lisp_Object symbol; | |
44747bd0 | 6265 | int face_id; |
5c538596 | 6266 | int signal_p; |
44747bd0 | 6267 | { |
e7d7fd8c | 6268 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
44747bd0 EZ |
6269 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
6270 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
6271 | ||
6272 | if (!default_face) | |
6273 | abort (); | |
6274 | ||
e7d7fd8c | 6275 | get_lface_attributes (f, symbol, symbol_attrs, signal_p); |
44747bd0 | 6276 | bcopy (default_face->lface, attrs, sizeof attrs); |
e7d7fd8c | 6277 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
af53b43c | 6278 | return lookup_face (f, attrs); |
44747bd0 EZ |
6279 | } |
6280 | ||
f6608d5c RS |
6281 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
6282 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 6283 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
6284 | (plist) |
6285 | Lisp_Object plist; | |
6286 | { | |
6287 | Lisp_Object lface; | |
6288 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
6289 | Qunspecified); | |
a0a23346 MB |
6290 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
6291 | 1, 0); | |
f6608d5c RS |
6292 | return lface; |
6293 | } | |
6294 | ||
82641697 GM |
6295 | |
6296 | \f | |
9717e36c MB |
6297 | /*********************************************************************** |
6298 | Face capability testing | |
6299 | ***********************************************************************/ | |
6300 | ||
6301 | ||
6302 | /* If the distance (as returned by color_distance) between two colors is | |
6303 | less than this, then they are considered the same, for determining | |
6304 | whether a color is supported or not. The range of values is 0-65535. */ | |
6305 | ||
6306 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
6307 | ||
ccda4e3c | 6308 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
6309 | |
6310 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6311 | on the window-system frame F. | |
6312 | ||
6313 | The definition of `supported' is somewhat heuristic, but basically means | |
6314 | that a face containing all the attributes in ATTRS, when merged with the | |
6315 | default face for display, can be represented in a way that's | |
6316 | ||
6317 | \(1) different in appearance than the default face, and | |
8e330b22 | 6318 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
6319 | |
6320 | static int | |
8e330b22 | 6321 | x_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6322 | struct frame *f; |
6323 | Lisp_Object *attrs; | |
8e330b22 | 6324 | struct face *def_face; |
9717e36c | 6325 | { |
8e330b22 | 6326 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
6327 | |
6328 | /* Check that other specified attributes are different that the default | |
6329 | face. */ | |
6330 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
6331 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
6332 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
6333 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
6334 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
6335 | def_attrs[LFACE_INVERSE_INDEX])) | |
6336 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
6337 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
6338 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
6339 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
6340 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
6341 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
6342 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6343 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
6344 | def_attrs[LFACE_STIPPLE_INDEX])) | |
6345 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6346 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
6347 | def_attrs[LFACE_OVERLINE_INDEX])) | |
6348 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6349 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6350 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
6351 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6352 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
6353 | def_attrs[LFACE_BOX_INDEX]))) | |
6354 | return 0; | |
6355 | ||
6356 | /* Check font-related attributes, as those are the most commonly | |
6357 | "unsupported" on a window-system (because of missing fonts). */ | |
6358 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6359 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6360 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
6361 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
6362 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6363 | || !UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX])) | |
6364 | { | |
327719ee | 6365 | int face_id; |
9717e36c MB |
6366 | struct face *face; |
6367 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
6368 | ||
6369 | bcopy (def_attrs, merged_attrs, sizeof merged_attrs); | |
6370 | ||
a0a23346 | 6371 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c | 6372 | |
327719ee MB |
6373 | face_id = lookup_face (f, merged_attrs); |
6374 | face = FACE_FROM_ID (f, face_id); | |
9717e36c MB |
6375 | |
6376 | if (! face) | |
2010ba8c | 6377 | error ("Cannot make face"); |
9717e36c MB |
6378 | |
6379 | /* If the font is the same, then not supported. */ | |
6380 | if (face->font == def_face->font) | |
6381 | return 0; | |
6382 | } | |
6383 | ||
6384 | /* Everything checks out, this face is supported. */ | |
6385 | return 1; | |
6386 | } | |
6387 | ||
ccda4e3c | 6388 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
6389 | |
6390 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6391 | on the tty frame F. | |
6392 | ||
6393 | The definition of `supported' is somewhat heuristic, but basically means | |
6394 | that a face containing all the attributes in ATTRS, when merged | |
6395 | with the default face for display, can be represented in a way that's | |
6396 | ||
6397 | \(1) different in appearance than the default face, and | |
6398 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6399 | ||
6400 | Point (2) implies that a `:weight black' attribute will be satisfied | |
6401 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
6402 | long as the terminal can display a yellowish color, but `:slant italic' | |
6403 | will _not_ be satisfied by the tty display code's automatic | |
6404 | substitution of a `dim' face for italic. */ | |
6405 | ||
6406 | static int | |
8e330b22 | 6407 | tty_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6408 | struct frame *f; |
6409 | Lisp_Object *attrs; | |
8e330b22 | 6410 | struct face *def_face; |
9717e36c | 6411 | { |
734e9514 | 6412 | int weight; |
9717e36c MB |
6413 | Lisp_Object val, fg, bg; |
6414 | XColor fg_tty_color, fg_std_color; | |
6415 | XColor bg_tty_color, bg_std_color; | |
6416 | unsigned test_caps = 0; | |
8e330b22 | 6417 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 6418 | |
9717e36c | 6419 | |
8e330b22 MB |
6420 | /* First check some easy-to-check stuff; ttys support none of the |
6421 | following attributes, so we can just return false if any are requested | |
6422 | (even if `nominal' values are specified, we should still return false, | |
6423 | as that will be the same value that the default face uses). We | |
6424 | consider :slant unsupportable on ttys, even though the face code | |
6425 | actually `fakes' them using a dim attribute if possible. This is | |
6426 | because the faked result is too different from what the face | |
6427 | specifies. */ | |
6428 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6429 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6430 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6431 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6432 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6433 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6434 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6435 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
6436 | return 0; |
6437 | ||
6438 | ||
6439 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
6440 | ||
6441 | /* font weight (bold/dim) */ | |
6442 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6443 | if (weight >= 0) | |
6444 | { | |
8e330b22 MB |
6445 | int def_weight = face_numeric_weight (def_attrs[LFACE_WEIGHT_INDEX]); |
6446 | ||
9717e36c | 6447 | if (weight > XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6448 | { |
6449 | if (def_weight > XLFD_WEIGHT_MEDIUM) | |
6450 | return 0; /* same as default */ | |
6451 | test_caps = TTY_CAP_BOLD; | |
6452 | } | |
9717e36c | 6453 | else if (weight < XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6454 | { |
6455 | if (def_weight < XLFD_WEIGHT_MEDIUM) | |
6456 | return 0; /* same as default */ | |
6457 | test_caps = TTY_CAP_DIM; | |
6458 | } | |
6459 | else if (def_weight == XLFD_WEIGHT_MEDIUM) | |
6460 | return 0; /* same as default */ | |
9717e36c MB |
6461 | } |
6462 | ||
6463 | /* underlining */ | |
6464 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 6465 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
6466 | { |
6467 | if (STRINGP (val)) | |
8e330b22 MB |
6468 | return 0; /* ttys can't use colored underlines */ |
6469 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6470 | return 0; /* same as default */ | |
9717e36c MB |
6471 | else |
6472 | test_caps |= TTY_CAP_UNDERLINE; | |
6473 | } | |
6474 | ||
6475 | /* inverse video */ | |
6476 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
6477 | if (!UNSPECIFIEDP (val)) |
6478 | { | |
a13ab63f | 6479 | if (face_attr_equal_p (val, def_attrs[LFACE_INVERSE_INDEX])) |
8e330b22 MB |
6480 | return 0; /* same as default */ |
6481 | else | |
6482 | test_caps |= TTY_CAP_INVERSE; | |
6483 | } | |
9717e36c MB |
6484 | |
6485 | ||
6486 | /* Color testing. */ | |
6487 | ||
6488 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
6489 | we use them when calling `tty_capable_p' below, even if the face | |
6490 | specifies no colors. */ | |
6491 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6492 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6493 | ||
6494 | /* Check if foreground color is close enough. */ | |
6495 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
6496 | if (STRINGP (fg)) | |
6497 | { | |
8e330b22 MB |
6498 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6499 | ||
6500 | if (face_attr_equal_p (fg, def_fg)) | |
6501 | return 0; /* same as default */ | |
6502 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
6503 | return 0; /* not a valid color */ | |
9717e36c MB |
6504 | else if (color_distance (&fg_tty_color, &fg_std_color) |
6505 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6506 | return 0; /* displayed color is too different */ |
6507 | else | |
6508 | /* Make sure the color is really different than the default. */ | |
6509 | { | |
6510 | XColor def_fg_color; | |
6511 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
6512 | && (color_distance (&fg_tty_color, &def_fg_color) | |
6513 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6514 | return 0; | |
6515 | } | |
9717e36c MB |
6516 | } |
6517 | ||
6518 | /* Check if background color is close enough. */ | |
6519 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
6520 | if (STRINGP (bg)) | |
6521 | { | |
a13ab63f | 6522 | Lisp_Object def_bg = def_attrs[LFACE_BACKGROUND_INDEX]; |
8e330b22 MB |
6523 | |
6524 | if (face_attr_equal_p (bg, def_bg)) | |
6525 | return 0; /* same as default */ | |
6526 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
6527 | return 0; /* not a valid color */ | |
9717e36c MB |
6528 | else if (color_distance (&bg_tty_color, &bg_std_color) |
6529 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6530 | return 0; /* displayed color is too different */ |
6531 | else | |
6532 | /* Make sure the color is really different than the default. */ | |
6533 | { | |
6534 | XColor def_bg_color; | |
6535 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
6536 | && (color_distance (&bg_tty_color, &def_bg_color) | |
6537 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6538 | return 0; | |
6539 | } | |
9717e36c MB |
6540 | } |
6541 | ||
6542 | /* If both foreground and background are requested, see if the | |
6543 | distance between them is OK. We just check to see if the distance | |
6544 | between the tty's foreground and background is close enough to the | |
6545 | distance between the standard foreground and background. */ | |
6546 | if (STRINGP (fg) && STRINGP (bg)) | |
6547 | { | |
6548 | int delta_delta | |
6549 | = (color_distance (&fg_std_color, &bg_std_color) | |
6550 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
6551 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
6552 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
6553 | return 0; | |
6554 | } | |
6555 | ||
6556 | ||
6557 | /* See if the capabilities we selected above are supported, with the | |
6558 | given colors. */ | |
6559 | if (test_caps != 0 && | |
3d63dd9d | 6560 | ! tty_capable_p (FRAME_TTY (f), test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) |
9717e36c MB |
6561 | return 0; |
6562 | ||
6563 | ||
6564 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
6565 | return 1; | |
6566 | } | |
6567 | ||
6568 | ||
6569 | DEFUN ("display-supports-face-attributes-p", | |
6570 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
6571 | 1, 2, 0, | |
6572 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
6573 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 6574 | nil (meaning the selected frame's display). |
9717e36c MB |
6575 | |
6576 | The definition of `supported' is somewhat heuristic, but basically means | |
6577 | that a face containing all the attributes in ATTRIBUTES, when merged | |
6578 | with the default face for display, can be represented in a way that's | |
6579 | ||
6580 | \(1) different in appearance than the default face, and | |
6581 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6582 | ||
6583 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
6584 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
6585 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
6586 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 6587 | face for italic. */) |
9717e36c MB |
6588 | (attributes, display) |
6589 | Lisp_Object attributes, display; | |
6590 | { | |
221439a0 | 6591 | int supports = 0, i; |
9717e36c MB |
6592 | Lisp_Object frame; |
6593 | struct frame *f; | |
8e330b22 | 6594 | struct face *def_face; |
9717e36c MB |
6595 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6596 | ||
0722292b MB |
6597 | if (noninteractive || !initialized) |
6598 | /* We may not be able to access low-level face information in batch | |
6599 | mode, or before being dumped, and this function is not going to | |
6600 | be very useful in those cases anyway, so just give up. */ | |
6601 | return Qnil; | |
6602 | ||
9717e36c MB |
6603 | if (NILP (display)) |
6604 | frame = selected_frame; | |
6605 | else if (FRAMEP (display)) | |
6606 | frame = display; | |
6607 | else | |
6608 | { | |
6609 | /* Find any frame on DISPLAY. */ | |
6610 | Lisp_Object fl_tail; | |
6611 | ||
6612 | frame = Qnil; | |
6613 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
6614 | { | |
6615 | frame = XCAR (fl_tail); | |
6616 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
6617 | XFRAME (frame)->param_alist)), | |
6618 | display))) | |
6619 | break; | |
6620 | } | |
6621 | } | |
6622 | ||
6623 | CHECK_LIVE_FRAME (frame); | |
6624 | f = XFRAME (frame); | |
6625 | ||
6626 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
6627 | attrs[i] = Qunspecified; | |
a0a23346 | 6628 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 6629 | |
8e330b22 MB |
6630 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6631 | if (def_face == NULL) | |
6632 | { | |
6633 | if (! realize_basic_faces (f)) | |
734e9514 | 6634 | error ("Cannot realize default face"); |
8e330b22 | 6635 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
418ca4d2 RS |
6636 | if (def_face == NULL) |
6637 | abort (); /* realize_basic_faces must have set it up */ | |
8e330b22 MB |
6638 | } |
6639 | ||
9717e36c MB |
6640 | /* Dispatch to the appropriate handler. */ |
6641 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 6642 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 6643 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 6644 | else |
8e330b22 MB |
6645 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
6646 | #endif | |
9717e36c MB |
6647 | |
6648 | return supports ? Qt : Qnil; | |
6649 | } | |
6650 | ||
6651 | \f | |
82641697 GM |
6652 | /*********************************************************************** |
6653 | Font selection | |
6654 | ***********************************************************************/ | |
6655 | ||
8f924df7 | 6656 | DEFUN ("internal-set-font-selection-order", |
82641697 GM |
6657 | Finternal_set_font_selection_order, |
6658 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 6659 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
6660 | ORDER must be a list of length 4 containing the symbols `:width', |
6661 | `:height', `:weight', and `:slant'. Face attributes appearing | |
6662 | first in ORDER are matched first, e.g. if `:height' appears before | |
6663 | `:weight' in ORDER, font selection first tries to find a font with | |
6664 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
6665 | Value is ORDER. */) |
6666 | (order) | |
228299fa | 6667 | Lisp_Object order; |
82641697 GM |
6668 | { |
6669 | Lisp_Object list; | |
6670 | int i; | |
a08332c0 | 6671 | int indices[DIM (font_sort_order)]; |
178c5d9c | 6672 | |
b7826503 | 6673 | CHECK_LIST (order); |
82641697 GM |
6674 | bzero (indices, sizeof indices); |
6675 | i = 0; | |
6676 | ||
6677 | for (list = order; | |
6678 | CONSP (list) && i < DIM (indices); | |
6679 | list = XCDR (list), ++i) | |
6680 | { | |
6681 | Lisp_Object attr = XCAR (list); | |
6682 | int xlfd; | |
6683 | ||
6684 | if (EQ (attr, QCwidth)) | |
6685 | xlfd = XLFD_SWIDTH; | |
6686 | else if (EQ (attr, QCheight)) | |
6687 | xlfd = XLFD_POINT_SIZE; | |
6688 | else if (EQ (attr, QCweight)) | |
6689 | xlfd = XLFD_WEIGHT; | |
6690 | else if (EQ (attr, QCslant)) | |
6691 | xlfd = XLFD_SLANT; | |
6692 | else | |
6693 | break; | |
6694 | ||
6695 | if (indices[i] != 0) | |
6696 | break; | |
6697 | indices[i] = xlfd; | |
6698 | } | |
6699 | ||
a08332c0 | 6700 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 6701 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
6702 | for (i = 0; i < DIM (font_sort_order); ++i) |
6703 | if (indices[i] == 0) | |
6704 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
6705 | |
6706 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
6707 | { | |
6708 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
6709 | free_all_realized_faces (Qnil); | |
6710 | } | |
178c5d9c | 6711 | |
426b2119 KH |
6712 | #ifdef USE_FONT_BACKEND |
6713 | font_update_sort_order (font_sort_order); | |
6714 | #endif /* USE_FONT_BACKEND */ | |
6715 | ||
82641697 GM |
6716 | return Qnil; |
6717 | } | |
6718 | ||
6719 | ||
6720 | DEFUN ("internal-set-alternative-font-family-alist", | |
6721 | Finternal_set_alternative_font_family_alist, | |
6722 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 6723 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
6724 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6725 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
6726 | be found. Value is ALIST. */) |
6727 | (alist) | |
82641697 GM |
6728 | Lisp_Object alist; |
6729 | { | |
b7826503 | 6730 | CHECK_LIST (alist); |
82641697 GM |
6731 | Vface_alternative_font_family_alist = alist; |
6732 | free_all_realized_faces (Qnil); | |
6733 | return alist; | |
6734 | } | |
6735 | ||
6736 | ||
32fcc231 GM |
6737 | DEFUN ("internal-set-alternative-font-registry-alist", |
6738 | Finternal_set_alternative_font_registry_alist, | |
6739 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 6740 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
6741 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6742 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
6743 | be found. Value is ALIST. */) |
6744 | (alist) | |
32fcc231 GM |
6745 | Lisp_Object alist; |
6746 | { | |
b7826503 | 6747 | CHECK_LIST (alist); |
32fcc231 GM |
6748 | Vface_alternative_font_registry_alist = alist; |
6749 | free_all_realized_faces (Qnil); | |
6750 | return alist; | |
6751 | } | |
6752 | ||
6753 | ||
c3cee013 | 6754 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6755 | |
82641697 GM |
6756 | /* Value is non-zero if FONT is the name of a scalable font. The |
6757 | X11R6 XLFD spec says that point size, pixel size, and average width | |
6758 | are zero for scalable fonts. Intlfonts contain at least one | |
6759 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
6760 | just test average width. */ | |
6761 | ||
6762 | static int | |
6763 | font_scalable_p (font) | |
6764 | struct font_name *font; | |
6765 | { | |
6766 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
6767 | return (*s == '0' && *(s + 1) == '\0') |
6768 | #ifdef WINDOWSNT | |
6769 | /* Windows implementation of XLFD is slightly broken for backward | |
6770 | compatibility with previous broken versions, so test for | |
6771 | wildcards as well as 0. */ | |
6772 | || *s == '*' | |
6773 | #endif | |
6774 | ; | |
82641697 GM |
6775 | } |
6776 | ||
6777 | ||
8e1b21a7 KH |
6778 | /* Ignore the difference of font point size less than this value. */ |
6779 | ||
6780 | #define FONT_POINT_SIZE_QUANTUM 5 | |
6781 | ||
82641697 GM |
6782 | /* Value is non-zero if FONT1 is a better match for font attributes |
6783 | VALUES than FONT2. VALUES is an array of face attribute values in | |
6784 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
6785 | sizes. AVGWIDTH, if not zero, is a specified font average width |
6786 | to compare with. */ | |
82641697 GM |
6787 | |
6788 | static int | |
a08332c0 | 6789 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
6790 | int *values; |
6791 | struct font_name *font1, *font2; | |
a08332c0 | 6792 | int compare_pt_p, avgwidth; |
82641697 GM |
6793 | { |
6794 | int i; | |
178c5d9c | 6795 | |
6c1195ab RS |
6796 | /* Any font is better than no font. */ |
6797 | if (! font1) | |
6798 | return 0; | |
6799 | if (! font2) | |
6800 | return 1; | |
6801 | ||
a08332c0 | 6802 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6803 | { |
6804 | int xlfd_idx = font_sort_order[i]; | |
6805 | ||
6806 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
6807 | { | |
f70400f2 KH |
6808 | int delta1, delta2; |
6809 | ||
6810 | if (xlfd_idx == XLFD_POINT_SIZE) | |
6811 | { | |
1ea40aa2 | 6812 | delta1 = eabs (values[i] - (font1->numeric[xlfd_idx] |
f70400f2 | 6813 | / font1->rescale_ratio)); |
1ea40aa2 | 6814 | delta2 = eabs (values[i] - (font2->numeric[xlfd_idx] |
f70400f2 | 6815 | / font2->rescale_ratio)); |
1ea40aa2 | 6816 | if (eabs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) |
f70400f2 KH |
6817 | continue; |
6818 | } | |
6819 | else | |
6820 | { | |
1ea40aa2 EZ |
6821 | delta1 = eabs (values[i] - font1->numeric[xlfd_idx]); |
6822 | delta2 = eabs (values[i] - font2->numeric[xlfd_idx]); | |
f70400f2 | 6823 | } |
178c5d9c | 6824 | |
82641697 GM |
6825 | if (delta1 > delta2) |
6826 | return 0; | |
6827 | else if (delta1 < delta2) | |
6828 | return 1; | |
6829 | else | |
6830 | { | |
6831 | /* The difference may be equal because, e.g., the face | |
6832 | specifies `italic' but we have only `regular' and | |
6833 | `oblique'. Prefer `oblique' in this case. */ | |
6834 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6835 | && font1->numeric[xlfd_idx] > values[i] | |
6836 | && font2->numeric[xlfd_idx] < values[i]) | |
6837 | return 1; | |
6838 | } | |
6839 | } | |
6840 | } | |
178c5d9c | 6841 | |
a08332c0 GM |
6842 | if (avgwidth) |
6843 | { | |
1ea40aa2 EZ |
6844 | int delta1 = eabs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); |
6845 | int delta2 = eabs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
a08332c0 GM |
6846 | if (delta1 > delta2) |
6847 | return 0; | |
6848 | else if (delta1 < delta2) | |
6849 | return 1; | |
6850 | } | |
6851 | ||
6b61353c KH |
6852 | if (! compare_pt_p) |
6853 | { | |
6854 | /* We prefer a real scalable font; i.e. not what autoscaled. */ | |
6855 | int auto_scaled_1 = (font1->numeric[XLFD_POINT_SIZE] == 0 | |
6856 | && font1->numeric[XLFD_RESY] > 0); | |
6857 | int auto_scaled_2 = (font2->numeric[XLFD_POINT_SIZE] == 0 | |
6858 | && font2->numeric[XLFD_RESY] > 0); | |
6859 | ||
6860 | if (auto_scaled_1 != auto_scaled_2) | |
6861 | return auto_scaled_2; | |
6862 | } | |
6863 | ||
a08332c0 | 6864 | return font1->registry_priority < font2->registry_priority; |
82641697 GM |
6865 | } |
6866 | ||
6867 | ||
82641697 GM |
6868 | /* Value is non-zero if FONT is an exact match for face attributes in |
6869 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6870 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6871 | with. */ | |
82641697 GM |
6872 | |
6873 | static int | |
a08332c0 | 6874 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6875 | int *specified; |
6876 | struct font_name *font; | |
a08332c0 | 6877 | int avgwidth; |
82641697 GM |
6878 | { |
6879 | int i; | |
178c5d9c | 6880 | |
a08332c0 | 6881 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6882 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6883 | break; | |
6884 | ||
a08332c0 GM |
6885 | return (i == DIM (font_sort_order) |
6886 | && (avgwidth <= 0 | |
6887 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6888 | } |
6889 | ||
6890 | ||
6891 | /* Value is the name of a scaled font, generated from scalable font | |
6892 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6893 | Value is allocated from heap. */ | |
6894 | ||
6895 | static char * | |
6896 | build_scalable_font_name (f, font, specified_pt) | |
6897 | struct frame *f; | |
6898 | struct font_name *font; | |
6899 | int specified_pt; | |
6900 | { | |
a7255152 | 6901 | char pixel_size[20]; |
82641697 GM |
6902 | int pixel_value; |
6903 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6904 | double pt; | |
6905 | ||
bb229eec KH |
6906 | if (font->numeric[XLFD_PIXEL_SIZE] != 0 |
6907 | || font->numeric[XLFD_POINT_SIZE] != 0) | |
6908 | /* This is a scalable font but is requested for a specific size. | |
6909 | We should not change that size. */ | |
6910 | return build_font_name (font); | |
6911 | ||
82641697 GM |
6912 | /* If scalable font is for a specific resolution, compute |
6913 | the point size we must specify from the resolution of | |
6914 | the display and the specified resolution of the font. */ | |
6915 | if (font->numeric[XLFD_RESY] != 0) | |
6916 | { | |
6917 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
02a6375c | 6918 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 GM |
6919 | } |
6920 | else | |
6921 | { | |
6922 | pt = specified_pt; | |
02a6375c | 6923 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 | 6924 | } |
f70400f2 KH |
6925 | /* We may need a font of the different size. */ |
6926 | pixel_value *= font->rescale_ratio; | |
178c5d9c | 6927 | |
f70400f2 KH |
6928 | /* We should keep POINT_SIZE 0. Otherwise, X server can't open a |
6929 | font of the specified PIXEL_SIZE. */ | |
6930 | #if 0 | |
a7255152 SM |
6931 | { /* Set point size of the font. */ |
6932 | char point_size[20]; | |
6933 | sprintf (point_size, "%d", (int) pt); | |
6934 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6935 | font->numeric[XLFD_POINT_SIZE] = pt; | |
6936 | } | |
f70400f2 | 6937 | #endif |
178c5d9c | 6938 | |
82641697 GM |
6939 | /* Set pixel size. */ |
6940 | sprintf (pixel_size, "%d", pixel_value); | |
6941 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6942 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6943 | |
82641697 GM |
6944 | /* If font doesn't specify its resolution, use the |
6945 | resolution of the display. */ | |
6946 | if (font->numeric[XLFD_RESY] == 0) | |
6947 | { | |
6948 | char buffer[20]; | |
6949 | sprintf (buffer, "%d", (int) resy); | |
6950 | font->fields[XLFD_RESY] = buffer; | |
6951 | font->numeric[XLFD_RESY] = resy; | |
6952 | } | |
178c5d9c | 6953 | |
82641697 GM |
6954 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6955 | { | |
6956 | char buffer[20]; | |
6957 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6958 | sprintf (buffer, "%d", resx); | |
6959 | font->fields[XLFD_RESX] = buffer; | |
6960 | font->numeric[XLFD_RESX] = resx; | |
6961 | } | |
6962 | ||
6963 | return build_font_name (font); | |
6964 | } | |
6965 | ||
6966 | ||
6967 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6968 | can't run a Lisp function here since this function may be called | |
6969 | with input blocked. */ | |
6970 | ||
6971 | static int | |
702a1e8e | 6972 | may_use_scalable_font_p (font) |
53c208f6 | 6973 | const char *font; |
82641697 GM |
6974 | { |
6975 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6976 | return 1; | |
6977 | else if (CONSP (Vscalable_fonts_allowed)) | |
6978 | { | |
6979 | Lisp_Object tail, regexp; | |
178c5d9c | 6980 | |
82641697 GM |
6981 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6982 | { | |
6983 | regexp = XCAR (tail); | |
6984 | if (STRINGP (regexp) | |
702a1e8e | 6985 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6986 | return 1; |
6987 | } | |
6988 | } | |
178c5d9c | 6989 | |
82641697 GM |
6990 | return 0; |
6991 | } | |
6992 | ||
82641697 GM |
6993 | |
6994 | ||
2e6621ca GM |
6995 | /* Return the name of the best matching font for face attributes ATTRS |
6996 | in the array of font_name structures FONTS which contains NFONTS | |
6997 | elements. WIDTH_RATIO is a factor with which to multiply average | |
6998 | widths if ATTRS specifies such a width. | |
6999 | ||
7000 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
7001 | freed by this function. |
7002 | ||
7003 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
7004 | indicate whether the resulting font should be drawn using overstrike | |
7005 | to simulate bold-face. */ | |
82641697 GM |
7006 | |
7007 | static char * | |
6ae2cd57 | 7008 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
7009 | struct frame *f; |
7010 | Lisp_Object *attrs; | |
7011 | struct font_name *fonts; | |
7012 | int nfonts; | |
2e6621ca | 7013 | int width_ratio; |
6ae2cd57 | 7014 | int *needs_overstrike; |
82641697 GM |
7015 | { |
7016 | char *font_name; | |
7017 | struct font_name *best; | |
334a2e2a | 7018 | int i, pt = 0; |
a08332c0 GM |
7019 | int specified[5]; |
7020 | int exact_p, avgwidth; | |
82641697 GM |
7021 | |
7022 | if (nfonts == 0) | |
7023 | return NULL; | |
7024 | ||
7025 | /* Make specified font attributes available in `specified', | |
7026 | indexed by sort order. */ | |
7027 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7028 | { | |
7029 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 7030 | |
82641697 GM |
7031 | if (xlfd_idx == XLFD_SWIDTH) |
7032 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
7033 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
7034 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
7035 | else if (xlfd_idx == XLFD_WEIGHT) | |
7036 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7037 | else if (xlfd_idx == XLFD_SLANT) | |
7038 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7039 | else | |
7040 | abort (); | |
7041 | } | |
7042 | ||
a08332c0 GM |
7043 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
7044 | ? 0 | |
2e6621ca | 7045 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 7046 | |
82641697 | 7047 | exact_p = 0; |
178c5d9c | 7048 | |
6ae2cd57 MB |
7049 | if (needs_overstrike) |
7050 | *needs_overstrike = 0; | |
7051 | ||
6c1195ab | 7052 | best = NULL; |
82641697 GM |
7053 | |
7054 | /* Find the best match among the non-scalable fonts. */ | |
41a9b76e | 7055 | for (i = 0; i < nfonts; ++i) |
6c1195ab RS |
7056 | if (!font_scalable_p (fonts + i) |
7057 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) | |
7058 | { | |
7059 | best = fonts + i; | |
82641697 | 7060 | |
6c1195ab RS |
7061 | exact_p = exact_face_match_p (specified, best, avgwidth); |
7062 | if (exact_p) | |
7063 | break; | |
7064 | } | |
82641697 GM |
7065 | |
7066 | /* Unless we found an exact match among non-scalable fonts, see if | |
7067 | we can find a better match among scalable fonts. */ | |
7068 | if (!exact_p) | |
7069 | { | |
7070 | /* A scalable font is better if | |
7071 | ||
7072 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 7073 | |
82641697 GM |
7074 | 2. the best non-scalable font doesn't have the required |
7075 | point size, and the scalable fonts weight, slant, swidth | |
7076 | isn't worse. */ | |
7077 | ||
7078 | int non_scalable_has_exact_height_p; | |
7079 | ||
7080 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
7081 | non_scalable_has_exact_height_p = 1; | |
7082 | else | |
7083 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 7084 | |
82641697 GM |
7085 | for (i = 0; i < nfonts; ++i) |
7086 | if (font_scalable_p (fonts + i)) | |
7087 | { | |
6c1195ab | 7088 | if (better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 7089 | || (!non_scalable_has_exact_height_p |
a08332c0 | 7090 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
6b61353c KH |
7091 | { |
7092 | non_scalable_has_exact_height_p = 1; | |
7093 | best = fonts + i; | |
7094 | } | |
82641697 GM |
7095 | } |
7096 | } | |
6ae2cd57 | 7097 | |
6c1195ab RS |
7098 | /* We should have found SOME font. */ |
7099 | if (best == NULL) | |
7100 | abort (); | |
6ae2cd57 | 7101 | |
ccd97b56 RS |
7102 | if (! exact_p && needs_overstrike) |
7103 | { | |
7104 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
7105 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
7106 | ||
7107 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
7108 | { | |
7109 | /* We want a bold font, but didn't get one; try to use | |
7110 | overstriking instead to simulate bold-face. However, | |
234b59d7 | 7111 | don't overstrike an already-bold font unless the |
ccd97b56 RS |
7112 | desired weight grossly exceeds the available weight. */ |
7113 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
234b59d7 | 7114 | *needs_overstrike = (want_weight - got_weight) > 2; |
ccd97b56 RS |
7115 | else |
7116 | *needs_overstrike = 1; | |
6ae2cd57 | 7117 | } |
82641697 GM |
7118 | } |
7119 | ||
7120 | if (font_scalable_p (best)) | |
7121 | font_name = build_scalable_font_name (f, best, pt); | |
7122 | else | |
7123 | font_name = build_font_name (best); | |
178c5d9c | 7124 | |
82641697 GM |
7125 | /* Free font_name structures. */ |
7126 | free_font_names (fonts, nfonts); | |
178c5d9c | 7127 | |
82641697 GM |
7128 | return font_name; |
7129 | } | |
7130 | ||
7131 | ||
3cf80731 SM |
7132 | /* Get a list of matching fonts on frame F, considering FAMILY |
7133 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
7134 | |
7135 | FAMILY is the font family whose alternatives are considered. | |
7136 | ||
7137 | REGISTRY, if a string, specifies a font registry and encoding to | |
7138 | match. A value of nil means include fonts of any registry and | |
7139 | encoding. | |
177c0ea7 | 7140 | |
4a529c42 GM |
7141 | Return in *FONTS a pointer to a vector of font_name structures for |
7142 | the fonts matched. Value is the number of fonts found. */ | |
7143 | ||
7144 | static int | |
7145 | try_alternative_families (f, family, registry, fonts) | |
7146 | struct frame *f; | |
7147 | Lisp_Object family, registry; | |
7148 | struct font_name **fonts; | |
7149 | { | |
7150 | Lisp_Object alter; | |
7151 | int nfonts = 0; | |
7152 | ||
3cf80731 SM |
7153 | nfonts = font_list (f, Qnil, family, registry, fonts); |
7154 | if (nfonts == 0) | |
4a529c42 | 7155 | { |
3cf80731 SM |
7156 | /* Try alternative font families. */ |
7157 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
7158 | if (CONSP (alter)) | |
7159 | { | |
7160 | for (alter = XCDR (alter); | |
7161 | CONSP (alter) && nfonts == 0; | |
7162 | alter = XCDR (alter)) | |
7163 | { | |
7164 | if (STRINGP (XCAR (alter))) | |
7165 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
7166 | } | |
7167 | } | |
177c0ea7 | 7168 | |
f9a45bb3 KH |
7169 | /* Try all scalable fonts before giving up. */ |
7170 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 7171 | { |
331379bf | 7172 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
7173 | specbind (Qscalable_fonts_allowed, Qt); |
7174 | nfonts = try_alternative_families (f, family, registry, fonts); | |
7175 | unbind_to (count, Qnil); | |
4a529c42 GM |
7176 | } |
7177 | } | |
4a529c42 GM |
7178 | return nfonts; |
7179 | } | |
7180 | ||
7181 | ||
702a1e8e GM |
7182 | /* Get a list of matching fonts on frame F. |
7183 | ||
af53b43c KH |
7184 | PATTERN, if a string, specifies a font name pattern to match while |
7185 | ignoring FAMILY and REGISTRY. | |
702a1e8e | 7186 | |
af53b43c | 7187 | FAMILY, if a list, specifies a list of font families to try. |
177c0ea7 | 7188 | |
af53b43c KH |
7189 | REGISTRY, if a list, specifies a list of font registries and |
7190 | encodinging to try. | |
54580ab2 | 7191 | |
702a1e8e GM |
7192 | Return in *FONTS a pointer to a vector of font_name structures for |
7193 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
7194 | |
7195 | static int | |
af53b43c | 7196 | try_font_list (f, pattern, family, registry, fonts) |
82641697 | 7197 | struct frame *f; |
a55a1dc6 | 7198 | Lisp_Object pattern, family, registry; |
82641697 GM |
7199 | struct font_name **fonts; |
7200 | { | |
4a529c42 | 7201 | int nfonts = 0; |
3cf80731 | 7202 | |
af53b43c | 7203 | if (STRINGP (pattern)) |
bb229eec KH |
7204 | { |
7205 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7206 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
7207 | { | |
7208 | int count = SPECPDL_INDEX (); | |
7209 | specbind (Qscalable_fonts_allowed, Qt); | |
7210 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7211 | unbind_to (count, Qnil); | |
7212 | } | |
7213 | } | |
af53b43c | 7214 | else |
82641697 | 7215 | { |
af53b43c | 7216 | Lisp_Object tail; |
f00691a3 | 7217 | |
af53b43c KH |
7218 | if (NILP (family)) |
7219 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
3cf80731 | 7220 | else |
af53b43c KH |
7221 | for (tail = family; ! nfonts && CONSP (tail); tail = XCDR (tail)) |
7222 | nfonts = try_alternative_families (f, XCAR (tail), registry, fonts); | |
54580ab2 | 7223 | |
af53b43c KH |
7224 | /* Try font family of the default face or "fixed". */ |
7225 | if (nfonts == 0 && !NILP (family)) | |
7226 | { | |
7227 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7228 | if (default_face) | |
7229 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
7230 | else | |
7231 | family = build_string ("fixed"); | |
8f924df7 | 7232 | nfonts = try_alternative_families (f, family, registry, fonts); |
af53b43c | 7233 | } |
178c5d9c | 7234 | |
af53b43c KH |
7235 | /* Try any family with the given registry. */ |
7236 | if (nfonts == 0 && !NILP (family)) | |
8f924df7 | 7237 | nfonts = try_alternative_families (f, Qnil, registry, fonts); |
82641697 | 7238 | } |
177c0ea7 | 7239 | |
82641697 GM |
7240 | return nfonts; |
7241 | } | |
7242 | ||
82641697 | 7243 | |
39506348 KH |
7244 | /* Return the fontset id of the base fontset name or alias name given |
7245 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
7246 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
7247 | |
7248 | static int | |
39506348 | 7249 | face_fontset (attrs) |
82641697 GM |
7250 | Lisp_Object *attrs; |
7251 | { | |
39506348 | 7252 | Lisp_Object name; |
178c5d9c | 7253 | |
763bc839 | 7254 | name = attrs[LFACE_FONTSET_INDEX]; |
39506348 KH |
7255 | if (!STRINGP (name)) |
7256 | return -1; | |
7257 | return fs_query_fontset (name, 0); | |
82641697 GM |
7258 | } |
7259 | ||
7260 | ||
af53b43c | 7261 | /* Choose a name of font to use on frame F to display characters with |
39506348 | 7262 | Lisp face attributes specified by ATTRS. The font name is |
af53b43c KH |
7263 | determined by the font-related attributes in ATTRS and FONT-SPEC |
7264 | (if specified). | |
6ae2cd57 | 7265 | |
af53b43c | 7266 | When we are choosing a font for ASCII characters, FONT-SPEC is |
db3aa8c3 KH |
7267 | always nil. Otherwise FONT-SPEC is an object created by |
7268 | `font-spec' or a string specifying a font name pattern. | |
82641697 | 7269 | |
8f924df7 KH |
7270 | If NEEDS_OVERSTRIKE is not NULL, a boolean is returned in it to |
7271 | indicate whether the resulting font should be drawn using | |
7272 | overstrike to simulate bold-face. | |
7273 | ||
af53b43c KH |
7274 | Value is the font name which is allocated from the heap and must be |
7275 | freed by the caller. */ | |
7276 | ||
7277 | char * | |
8f924df7 | 7278 | choose_face_font (f, attrs, font_spec, needs_overstrike) |
82641697 GM |
7279 | struct frame *f; |
7280 | Lisp_Object *attrs; | |
af53b43c | 7281 | Lisp_Object font_spec; |
6ae2cd57 | 7282 | int *needs_overstrike; |
82641697 | 7283 | { |
af53b43c | 7284 | Lisp_Object pattern, family, adstyle, registry; |
82641697 | 7285 | char *font_name = NULL; |
82641697 | 7286 | struct font_name *fonts; |
af53b43c | 7287 | int nfonts; |
178c5d9c | 7288 | |
774666fb MB |
7289 | if (needs_overstrike) |
7290 | *needs_overstrike = 0; | |
7291 | ||
af53b43c KH |
7292 | /* If we are choosing an ASCII font and a font name is explicitly |
7293 | specified in ATTRS, return it. */ | |
af53b43c | 7294 | if (NILP (font_spec) && STRINGP (attrs[LFACE_FONT_INDEX])) |
8f924df7 | 7295 | return xstrdup (SDATA (attrs[LFACE_FONT_INDEX])); |
81b39386 | 7296 | |
af53b43c | 7297 | if (NILP (attrs[LFACE_FAMILY_INDEX])) |
81b39386 | 7298 | family = Qnil; |
af53b43c KH |
7299 | else |
7300 | family = Fcons (attrs[LFACE_FAMILY_INDEX], Qnil); | |
7301 | ||
154c2d39 KH |
7302 | /* Decide FAMILY, ADSTYLE, and REGISTRY from FONT_SPEC. But, |
7303 | ADSTYLE is not used in the font selector for the moment. */ | |
af53b43c | 7304 | if (VECTORP (font_spec)) |
39506348 | 7305 | { |
af53b43c | 7306 | pattern = Qnil; |
db3aa8c3 KH |
7307 | if (! NILP (AREF (font_spec, FONT_FAMILY_INDEX))) |
7308 | family = Fcons (SYMBOL_NAME (AREF (font_spec, FONT_FAMILY_INDEX)), | |
7309 | family); | |
7310 | adstyle = AREF (font_spec, FONT_ADSTYLE_INDEX); | |
7311 | registry = Fcons (SYMBOL_NAME (AREF (font_spec, FONT_REGISTRY_INDEX)), | |
7312 | Qnil); | |
af53b43c KH |
7313 | } |
7314 | else if (STRINGP (font_spec)) | |
7315 | { | |
7316 | pattern = font_spec; | |
7317 | family = Qnil; | |
7318 | adstyle = Qnil; | |
7319 | registry = Qnil; | |
7320 | } | |
7321 | else | |
7322 | { | |
154c2d39 KH |
7323 | /* We are choosing an ASCII font. By default, use the registry |
7324 | name "iso8859-1". But, if the registry name of the ASCII | |
7325 | font specified in the fontset of ATTRS is not "iso8859-1" | |
7326 | (e.g "iso10646-1"), use also that name with higher | |
7327 | priority. */ | |
7328 | int fontset = face_fontset (attrs); | |
7329 | Lisp_Object ascii; | |
7330 | int len; | |
7331 | struct font_name font; | |
7332 | ||
af53b43c KH |
7333 | pattern = Qnil; |
7334 | adstyle = Qnil; | |
154c2d39 KH |
7335 | registry = Fcons (build_string ("iso8859-1"), Qnil); |
7336 | ||
7337 | ascii = fontset_ascii (fontset); | |
8f924df7 | 7338 | len = SBYTES (ascii); |
154c2d39 | 7339 | if (len < 9 |
8f924df7 | 7340 | || strcmp (SDATA (ascii) + len - 9, "iso8859-1")) |
154c2d39 KH |
7341 | { |
7342 | font.name = LSTRDUPA (ascii); | |
7343 | /* Check if the name is in XLFD. */ | |
7344 | if (split_font_name (f, &font, 0)) | |
7345 | { | |
7346 | font.fields[XLFD_ENCODING][-1] = '-'; | |
7347 | registry = Fcons (build_string (font.fields[XLFD_REGISTRY]), | |
7348 | registry); | |
7349 | } | |
7350 | } | |
39506348 | 7351 | } |
82641697 | 7352 | |
178c5d9c | 7353 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 7354 | best match for the specified face attributes from it. */ |
af53b43c | 7355 | nfonts = try_font_list (f, pattern, family, registry, &fonts); |
8f924df7 | 7356 | font_name = best_matching_font (f, attrs, fonts, nfonts, NILP (font_spec), |
6ae2cd57 | 7357 | needs_overstrike); |
82641697 GM |
7358 | return font_name; |
7359 | } | |
7360 | ||
c3cee013 | 7361 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7362 | |
7363 | ||
7364 | \f | |
7365 | /*********************************************************************** | |
7366 | Face Realization | |
7367 | ***********************************************************************/ | |
7368 | ||
7369 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
7370 | of F don't contain enough information needed to realize the default | |
7371 | face. */ | |
7372 | ||
7373 | static int | |
7374 | realize_basic_faces (f) | |
7375 | struct frame *f; | |
7376 | { | |
7377 | int success_p = 0; | |
331379bf | 7378 | int count = SPECPDL_INDEX (); |
17e8204b | 7379 | |
04386463 GM |
7380 | /* Block input here so that we won't be surprised by an X expose |
7381 | event, for instance, without having the faces set up. */ | |
17e8204b | 7382 | BLOCK_INPUT; |
eeffb293 | 7383 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 7384 | |
82641697 GM |
7385 | if (realize_default_face (f)) |
7386 | { | |
92610620 | 7387 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 7388 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 7389 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 7390 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 7391 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
7392 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
7393 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
7394 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
7395 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 7396 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 7397 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 7398 | |
b5de343d | 7399 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 7400 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 7401 | { |
ceeda019 | 7402 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 7403 | #ifdef USE_X_TOOLKIT |
daf01701 KL |
7404 | if (FRAME_WINDOW_P (f)) |
7405 | x_update_menu_appearance (f); | |
a03ad468 | 7406 | #endif |
563f68f1 | 7407 | } |
177c0ea7 | 7408 | |
82641697 GM |
7409 | success_p = 1; |
7410 | } | |
7411 | ||
eeffb293 | 7412 | unbind_to (count, Qnil); |
17e8204b | 7413 | UNBLOCK_INPUT; |
82641697 GM |
7414 | return success_p; |
7415 | } | |
7416 | ||
7417 | ||
7418 | /* Realize the default face on frame F. If the face is not fully | |
7419 | specified, make it fully-specified. Attributes of the default face | |
7420 | that are not explicitly specified are taken from frame parameters. */ | |
7421 | ||
7422 | static int | |
7423 | realize_default_face (f) | |
7424 | struct frame *f; | |
7425 | { | |
7426 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7427 | Lisp_Object lface; | |
7428 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
7429 | Lisp_Object frame_font; |
7430 | struct face *face; | |
82641697 GM |
7431 | |
7432 | /* If the `default' face is not yet known, create it. */ | |
7433 | lface = lface_from_face_name (f, Qdefault, 0); | |
7434 | if (NILP (lface)) | |
07446869 GM |
7435 | { |
7436 | Lisp_Object frame; | |
7437 | XSETFRAME (frame, f); | |
7438 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
7439 | } | |
7440 | ||
82641697 | 7441 | |
c3cee013 JR |
7442 | #ifdef HAVE_WINDOW_SYSTEM |
7443 | if (FRAME_WINDOW_P (f)) | |
82641697 | 7444 | { |
f4d3bea3 KH |
7445 | #ifdef USE_FONT_BACKEND |
7446 | if (enable_font_backend) | |
7447 | { | |
7448 | frame_font = font_find_object (FRAME_FONT_OBJECT (f)); | |
7449 | xassert (FONT_OBJECT_P (frame_font)); | |
7450 | set_lface_from_font_and_fontset (f, lface, frame_font, | |
7451 | FRAME_FONTSET (f), | |
7452 | f->default_face_done_p); | |
7453 | } | |
7454 | else | |
7455 | { | |
7456 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
7457 | /* Set frame_font to the value of the `font' frame parameter. */ |
7458 | frame_font = Fassq (Qfont, f->param_alist); | |
7459 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
7460 | frame_font = XCDR (frame_font); | |
a5f696ac JD |
7461 | set_lface_from_font_name (f, lface, frame_font, |
7462 | f->default_face_done_p, 1); | |
f4d3bea3 KH |
7463 | #ifdef USE_FONT_BACKEND |
7464 | } | |
7465 | #endif /* USE_FONT_BACKEND */ | |
a5f696ac | 7466 | f->default_face_done_p = 1; |
82641697 | 7467 | } |
c3cee013 | 7468 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 7469 | |
44747bd0 | 7470 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
7471 | { |
7472 | LFACE_FAMILY (lface) = build_string ("default"); | |
7473 | LFACE_SWIDTH (lface) = Qnormal; | |
7474 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
7475 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
7476 | LFACE_WEIGHT (lface) = Qnormal; | |
7477 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
7478 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 7479 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 7480 | } |
178c5d9c | 7481 | |
82641697 GM |
7482 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
7483 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 7484 | |
82641697 GM |
7485 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
7486 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 7487 | |
82641697 GM |
7488 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
7489 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 7490 | |
82641697 GM |
7491 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
7492 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 7493 | |
82641697 GM |
7494 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
7495 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 7496 | |
82641697 GM |
7497 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
7498 | { | |
7499 | /* This function is called so early that colors are not yet | |
7500 | set in the frame parameter list. */ | |
7501 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 7502 | |
82641697 GM |
7503 | if (CONSP (color) && STRINGP (XCDR (color))) |
7504 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 7505 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7506 | return 0; |
3224dac1 | 7507 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7508 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 7509 | else |
82641697 GM |
7510 | abort (); |
7511 | } | |
178c5d9c | 7512 | |
82641697 GM |
7513 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
7514 | { | |
7515 | /* This function is called so early that colors are not yet | |
7516 | set in the frame parameter list. */ | |
7517 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
7518 | if (CONSP (color) && STRINGP (XCDR (color))) | |
7519 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 7520 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7521 | return 0; |
3224dac1 | 7522 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7523 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 7524 | else |
82641697 GM |
7525 | abort (); |
7526 | } | |
178c5d9c | 7527 | |
82641697 GM |
7528 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
7529 | LFACE_STIPPLE (lface) = Qnil; | |
7530 | ||
7531 | /* Realize the face; it must be fully-specified now. */ | |
7532 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
7533 | check_lface (lface); | |
7534 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
af53b43c | 7535 | face = realize_face (c, attrs, DEFAULT_FACE_ID); |
4da9c136 KH |
7536 | |
7537 | #ifdef HAVE_WINDOW_SYSTEM | |
41a9b76e | 7538 | #ifdef HAVE_X_WINDOWS |
361c0d6e | 7539 | if (FRAME_X_P (f) && face->font != FRAME_FONT (f)) |
73158a39 CY |
7540 | { |
7541 | /* This can happen when making a frame on a display that does | |
974b73e8 | 7542 | not support the default font. */ |
73158a39 | 7543 | if (!face->font) |
974b73e8 KL |
7544 | return 0; |
7545 | ||
73158a39 | 7546 | /* Otherwise, the font specified for the frame was not |
974b73e8 KL |
7547 | acceptable as a font for the default face (perhaps because |
7548 | auto-scaled fonts are rejected), so we must adjust the frame | |
7549 | font. */ | |
73158a39 CY |
7550 | x_set_font (f, build_string (face->font_name), Qnil); |
7551 | } | |
4da9c136 KH |
7552 | #endif /* HAVE_X_WINDOWS */ |
7553 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7554 | return 1; |
7555 | } | |
7556 | ||
7557 | ||
7558 | /* Realize basic faces other than the default face in face cache C. | |
7559 | SYMBOL is the face name, ID is the face id the realized face must | |
7560 | have. The default face must have been realized already. */ | |
7561 | ||
7562 | static void | |
7563 | realize_named_face (f, symbol, id) | |
7564 | struct frame *f; | |
7565 | Lisp_Object symbol; | |
7566 | int id; | |
7567 | { | |
e7d7fd8c | 7568 | struct face_cache *c = FRAME_FACE_CACHE (f); |
82641697 GM |
7569 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); |
7570 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
e7d7fd8c MB |
7571 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
7572 | struct face *new_face; | |
82641697 GM |
7573 | |
7574 | /* The default face must exist and be fully specified. */ | |
e7d7fd8c | 7575 | get_lface_attributes (f, Qdefault, attrs, 1); |
82641697 GM |
7576 | check_lface_attrs (attrs); |
7577 | xassert (lface_fully_specified_p (attrs)); | |
7578 | ||
e7d7fd8c | 7579 | /* If SYMBOL isn't know as a face, create it. */ |
82641697 GM |
7580 | if (NILP (lface)) |
7581 | { | |
7582 | Lisp_Object frame; | |
7583 | XSETFRAME (frame, f); | |
7584 | lface = Finternal_make_lisp_face (symbol, frame); | |
7585 | } | |
7586 | ||
7587 | /* Merge SYMBOL's face with the default face. */ | |
e7d7fd8c MB |
7588 | get_lface_attributes (f, symbol, symbol_attrs, 1); |
7589 | merge_face_vectors (f, symbol_attrs, attrs, 0); | |
7590 | ||
7591 | /* Realize the face. */ | |
7592 | new_face = realize_face (c, attrs, id); | |
82641697 GM |
7593 | } |
7594 | ||
7595 | ||
7596 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7597 | cache CACHE for ASCII characters. If FORMER_FACE_ID is |
7598 | non-negative, it is an ID of face to remove before caching the new | |
7599 | face. Value is a pointer to the newly created realized face. */ | |
82641697 GM |
7600 | |
7601 | static struct face * | |
af53b43c | 7602 | realize_face (cache, attrs, former_face_id) |
39506348 | 7603 | struct face_cache *cache; |
82641697 | 7604 | Lisp_Object *attrs; |
39506348 | 7605 | int former_face_id; |
82641697 GM |
7606 | { |
7607 | struct face *face; | |
178c5d9c | 7608 | |
82641697 | 7609 | /* LFACE must be fully specified. */ |
39506348 | 7610 | xassert (cache != NULL); |
82641697 GM |
7611 | check_lface_attrs (attrs); |
7612 | ||
39506348 KH |
7613 | if (former_face_id >= 0 && cache->used > former_face_id) |
7614 | { | |
7615 | /* Remove the former face. */ | |
7616 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
7617 | uncache_face (cache, former_face); | |
7618 | free_realized_face (cache->f, former_face); | |
7619 | } | |
7620 | ||
7621 | if (FRAME_WINDOW_P (cache->f)) | |
af53b43c | 7622 | face = realize_x_face (cache, attrs); |
e689ec06 | 7623 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
af53b43c | 7624 | face = realize_tty_face (cache, attrs); |
d448e982 KL |
7625 | else if (FRAME_INITIAL_P (cache->f)) |
7626 | { | |
7627 | /* Create a dummy face. */ | |
7628 | face = make_realized_face (attrs); | |
7629 | } | |
82641697 GM |
7630 | else |
7631 | abort (); | |
7632 | ||
39506348 KH |
7633 | /* Insert the new face. */ |
7634 | cache_face (cache, face, lface_hash (attrs)); | |
af53b43c KH |
7635 | return face; |
7636 | } | |
7637 | ||
7638 | ||
8c6204de | 7639 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
7640 | /* Realize the fully-specified face that has the same attributes as |
7641 | BASE_FACE except for the font on frame F. If FONT_ID is not | |
7642 | negative, it is an ID number of an already opened font that should | |
7643 | be used by the face. If FONT_ID is negative, the face has no font, | |
7644 | i.e., characters are displayed by empty boxes. */ | |
7645 | ||
7646 | static struct face * | |
7647 | realize_non_ascii_face (f, font_id, base_face) | |
7648 | struct frame *f; | |
7649 | int font_id; | |
7650 | struct face *base_face; | |
7651 | { | |
7652 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
8f924df7 | 7653 | struct face *face; |
af53b43c KH |
7654 | struct font_info *font_info; |
7655 | ||
7656 | face = (struct face *) xmalloc (sizeof *face); | |
7657 | *face = *base_face; | |
7658 | face->gc = 0; | |
bdd10de6 JD |
7659 | #ifdef USE_FONT_BACKEND |
7660 | face->extra = NULL; | |
7661 | #endif | |
af53b43c KH |
7662 | |
7663 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
7664 | face->colors_copied_bitwise_p = 1; | |
7665 | ||
7666 | face->font_info_id = font_id; | |
7667 | if (font_id >= 0) | |
7668 | { | |
7669 | font_info = FONT_INFO_FROM_ID (f, font_id); | |
7670 | face->font = font_info->font; | |
7671 | face->font_name = font_info->full_name; | |
7672 | } | |
7673 | else | |
7674 | { | |
7675 | face->font = NULL; | |
7676 | face->font_name = NULL; | |
7677 | } | |
7678 | ||
7679 | face->gc = 0; | |
7680 | ||
7681 | cache_face (cache, face, face->hash); | |
7682 | ||
82641697 GM |
7683 | return face; |
7684 | } | |
8c6204de | 7685 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7686 | |
7687 | ||
7688 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7689 | cache CACHE for ASCII characters. Do it for X frame CACHE->f. If |
7690 | the new face doesn't share font with the default face, a fontname | |
7691 | is allocated from the heap and set in `font_name' of the new face, | |
7692 | but it is not yet loaded here. Value is a pointer to the newly | |
7693 | created realized face. */ | |
82641697 GM |
7694 | |
7695 | static struct face * | |
af53b43c | 7696 | realize_x_face (cache, attrs) |
39506348 | 7697 | struct face_cache *cache; |
82641697 | 7698 | Lisp_Object *attrs; |
82641697 | 7699 | { |
7d603e3f | 7700 | struct face *face = NULL; |
c3cee013 | 7701 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 7702 | struct face *default_face; |
78d2079c | 7703 | struct frame *f; |
82641697 | 7704 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 7705 | |
39506348 | 7706 | xassert (FRAME_WINDOW_P (cache->f)); |
82641697 GM |
7707 | |
7708 | /* Allocate a new realized face. */ | |
39506348 | 7709 | face = make_realized_face (attrs); |
af53b43c | 7710 | face->ascii_face = face; |
39506348 KH |
7711 | |
7712 | f = cache->f; | |
7713 | ||
82641697 GM |
7714 | /* Determine the font to use. Most of the time, the font will be |
7715 | the same as the font of the default face, so try that first. */ | |
7716 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7717 | if (default_face | |
82641697 GM |
7718 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
7719 | { | |
7720 | face->font = default_face->font; | |
82641697 | 7721 | face->font_info_id = default_face->font_info_id; |
426b2119 KH |
7722 | #ifdef USE_FONT_BACKEND |
7723 | face->font_info = default_face->font_info; | |
7724 | #endif /* USE_FONT_BACKEND */ | |
82641697 | 7725 | face->font_name = default_face->font_name; |
39506348 | 7726 | face->fontset |
af53b43c | 7727 | = make_fontset_for_ascii_face (f, default_face->fontset, face); |
82641697 GM |
7728 | } |
7729 | else | |
7730 | { | |
39506348 | 7731 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
7732 | the base of a new realized fontset. Otherwise, use the same |
7733 | base fontset as of the default face. The base determines | |
7734 | registry and encoding of a font. It may also determine | |
7735 | foundry and family. The other fields of font name pattern | |
7736 | are constructed from ATTRS. */ | |
7737 | int fontset = face_fontset (attrs); | |
7738 | ||
af53b43c KH |
7739 | /* If we are realizing the default face, ATTRS should specify a |
7740 | fontset. In other words, if FONTSET is -1, we are not | |
7741 | realizing the default face, thus the default face should have | |
7742 | already been realized. */ | |
7743 | if (fontset == -1) | |
fc8c4797 | 7744 | fontset = default_face->fontset; |
af53b43c KH |
7745 | if (fontset == -1) |
7746 | abort (); | |
426b2119 KH |
7747 | #ifdef USE_FONT_BACKEND |
7748 | if (enable_font_backend) | |
7749 | font_load_for_face (f, face); | |
7750 | else | |
7751 | #endif /* USE_FONT_BACKEND */ | |
8f924df7 | 7752 | load_face_font (f, face); |
426b2119 KH |
7753 | if (face->font) |
7754 | face->fontset = make_fontset_for_ascii_face (f, fontset, face); | |
7755 | else | |
7756 | face->fontset = -1; | |
82641697 GM |
7757 | } |
7758 | ||
7759 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 7760 | |
82641697 | 7761 | load_face_colors (f, face, attrs); |
660ed669 | 7762 | |
82641697 GM |
7763 | /* Set up box. */ |
7764 | box = attrs[LFACE_BOX_INDEX]; | |
7765 | if (STRINGP (box)) | |
cb637678 | 7766 | { |
82641697 GM |
7767 | /* A simple box of line width 1 drawn in color given by |
7768 | the string. */ | |
7769 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
7770 | LFACE_BOX_INDEX); | |
7771 | face->box = FACE_SIMPLE_BOX; | |
7772 | face->box_line_width = 1; | |
cb637678 | 7773 | } |
82641697 | 7774 | else if (INTEGERP (box)) |
42120bc7 | 7775 | { |
82641697 GM |
7776 | /* Simple box of specified line width in foreground color of the |
7777 | face. */ | |
89624b8b | 7778 | xassert (XINT (box) != 0); |
82641697 | 7779 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 7780 | face->box_line_width = XINT (box); |
82641697 GM |
7781 | face->box_color = face->foreground; |
7782 | face->box_color_defaulted_p = 1; | |
7783 | } | |
7784 | else if (CONSP (box)) | |
7785 | { | |
7786 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
7787 | being one of `raised' or `sunken'. */ | |
7788 | face->box = FACE_SIMPLE_BOX; | |
7789 | face->box_color = face->foreground; | |
7790 | face->box_color_defaulted_p = 1; | |
7791 | face->box_line_width = 1; | |
7792 | ||
7793 | while (CONSP (box)) | |
42120bc7 | 7794 | { |
82641697 GM |
7795 | Lisp_Object keyword, value; |
7796 | ||
7797 | keyword = XCAR (box); | |
7798 | box = XCDR (box); | |
7799 | ||
7800 | if (!CONSP (box)) | |
7801 | break; | |
7802 | value = XCAR (box); | |
7803 | box = XCDR (box); | |
7804 | ||
7805 | if (EQ (keyword, QCline_width)) | |
7806 | { | |
89624b8b KH |
7807 | if (INTEGERP (value) && XINT (value) != 0) |
7808 | face->box_line_width = XINT (value); | |
82641697 GM |
7809 | } |
7810 | else if (EQ (keyword, QCcolor)) | |
7811 | { | |
7812 | if (STRINGP (value)) | |
7813 | { | |
7814 | face->box_color = load_color (f, face, value, | |
7815 | LFACE_BOX_INDEX); | |
7816 | face->use_box_color_for_shadows_p = 1; | |
7817 | } | |
7818 | } | |
7819 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 7820 | { |
82641697 GM |
7821 | if (EQ (value, Qreleased_button)) |
7822 | face->box = FACE_RAISED_BOX; | |
7823 | else if (EQ (value, Qpressed_button)) | |
7824 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 7825 | } |
42120bc7 RS |
7826 | } |
7827 | } | |
195f798e | 7828 | |
82641697 | 7829 | /* Text underline, overline, strike-through. */ |
178c5d9c | 7830 | |
82641697 | 7831 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 7832 | { |
82641697 GM |
7833 | /* Use default color (same as foreground color). */ |
7834 | face->underline_p = 1; | |
7835 | face->underline_defaulted_p = 1; | |
7836 | face->underline_color = 0; | |
7837 | } | |
7838 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 7839 | { |
82641697 GM |
7840 | /* Use specified color. */ |
7841 | face->underline_p = 1; | |
7842 | face->underline_defaulted_p = 0; | |
7843 | face->underline_color | |
7844 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
7845 | LFACE_UNDERLINE_INDEX); | |
195f798e | 7846 | } |
82641697 | 7847 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 7848 | { |
82641697 GM |
7849 | face->underline_p = 0; |
7850 | face->underline_defaulted_p = 0; | |
7851 | face->underline_color = 0; | |
7b00de84 JB |
7852 | } |
7853 | ||
82641697 GM |
7854 | overline = attrs[LFACE_OVERLINE_INDEX]; |
7855 | if (STRINGP (overline)) | |
cb637678 | 7856 | { |
82641697 GM |
7857 | face->overline_color |
7858 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
7859 | LFACE_OVERLINE_INDEX); | |
7860 | face->overline_p = 1; | |
cb637678 | 7861 | } |
82641697 | 7862 | else if (EQ (overline, Qt)) |
cb637678 | 7863 | { |
82641697 GM |
7864 | face->overline_color = face->foreground; |
7865 | face->overline_color_defaulted_p = 1; | |
7866 | face->overline_p = 1; | |
cb637678 JB |
7867 | } |
7868 | ||
82641697 GM |
7869 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
7870 | if (STRINGP (strike_through)) | |
7871 | { | |
7872 | face->strike_through_color | |
7873 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
7874 | LFACE_STRIKE_THROUGH_INDEX); | |
7875 | face->strike_through_p = 1; | |
7876 | } | |
7877 | else if (EQ (strike_through, Qt)) | |
7878 | { | |
7879 | face->strike_through_color = face->foreground; | |
7880 | face->strike_through_color_defaulted_p = 1; | |
7881 | face->strike_through_p = 1; | |
7882 | } | |
867dd159 | 7883 | |
82641697 GM |
7884 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
7885 | if (!NILP (stipple)) | |
7886 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
c3cee013 | 7887 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 | 7888 | |
82641697 | 7889 | return face; |
660ed669 JB |
7890 | } |
7891 | ||
729425b1 | 7892 | |
ae4b4ba5 GM |
7893 | /* Map a specified color of face FACE on frame F to a tty color index. |
7894 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
7895 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
7896 | default foreground/background colors. */ | |
7897 | ||
7898 | static void | |
7899 | map_tty_color (f, face, idx, defaulted) | |
7900 | struct frame *f; | |
7901 | struct face *face; | |
7902 | enum lface_attribute_index idx; | |
7903 | int *defaulted; | |
7904 | { | |
7905 | Lisp_Object frame, color, def; | |
7906 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
7907 | unsigned long default_pixel, default_other_pixel, pixel; | |
7908 | ||
7909 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
7910 | ||
7911 | if (foreground_p) | |
7912 | { | |
7913 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7914 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7915 | } | |
7916 | else | |
7917 | { | |
7918 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7919 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7920 | } | |
177c0ea7 | 7921 | |
ae4b4ba5 GM |
7922 | XSETFRAME (frame, f); |
7923 | color = face->lface[idx]; | |
177c0ea7 | 7924 | |
ae4b4ba5 | 7925 | if (STRINGP (color) |
d5db4077 | 7926 | && SCHARS (color) |
ae4b4ba5 GM |
7927 | && CONSP (Vtty_defined_color_alist) |
7928 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
7929 | CONSP (def))) | |
7930 | { | |
7931 | /* Associations in tty-defined-color-alist are of the form | |
7932 | (NAME INDEX R G B). We need the INDEX part. */ | |
7933 | pixel = XINT (XCAR (XCDR (def))); | |
7934 | } | |
7935 | ||
7936 | if (pixel == default_pixel && STRINGP (color)) | |
7937 | { | |
7938 | pixel = load_color (f, face, color, idx); | |
7939 | ||
8d05ec51 | 7940 | #ifdef MSDOS |
ae4b4ba5 GM |
7941 | /* If the foreground of the default face is the default color, |
7942 | use the foreground color defined by the frame. */ | |
ae4b4ba5 GM |
7943 | if (FRAME_MSDOS_P (f)) |
7944 | { | |
ae4b4ba5 GM |
7945 | if (pixel == default_pixel |
7946 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
7947 | { | |
7948 | if (foreground_p) | |
7949 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7950 | else | |
7951 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7952 | face->lface[idx] = tty_color_name (f, pixel); | |
7953 | *defaulted = 1; | |
7954 | } | |
7955 | else if (pixel == default_other_pixel) | |
7956 | { | |
7957 | if (foreground_p) | |
7958 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7959 | else | |
7960 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7961 | face->lface[idx] = tty_color_name (f, pixel); | |
7962 | *defaulted = 1; | |
7963 | } | |
8d05ec51 JR |
7964 | } |
7965 | #endif /* MSDOS */ | |
ae4b4ba5 GM |
7966 | } |
7967 | ||
7968 | if (foreground_p) | |
7969 | face->foreground = pixel; | |
7970 | else | |
7971 | face->background = pixel; | |
7972 | } | |
7973 | ||
7974 | ||
82641697 | 7975 | /* Realize the fully-specified face with attributes ATTRS in face |
af53b43c KH |
7976 | cache CACHE for ASCII characters. Do it for TTY frame CACHE->f. |
7977 | Value is a pointer to the newly created realized face. */ | |
a8517066 | 7978 | |
82641697 | 7979 | static struct face * |
af53b43c | 7980 | realize_tty_face (cache, attrs) |
39506348 | 7981 | struct face_cache *cache; |
82641697 | 7982 | Lisp_Object *attrs; |
82641697 GM |
7983 | { |
7984 | struct face *face; | |
7985 | int weight, slant; | |
2d764c78 | 7986 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7987 | struct frame *f = cache->f; |
729425b1 | 7988 | |
82641697 | 7989 | /* Frame must be a termcap frame. */ |
e689ec06 | 7990 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7991 | |
82641697 | 7992 | /* Allocate a new realized face. */ |
39506348 | 7993 | face = make_realized_face (attrs); |
e689ec06 | 7994 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 7995 | |
178c5d9c | 7996 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
7997 | dimmed text because we want italic text to appear differently |
7998 | and because dimmed text is probably used infrequently. */ | |
7999 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
8000 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
8001 | ||
8002 | if (weight > XLFD_WEIGHT_MEDIUM) | |
8003 | face->tty_bold_p = 1; | |
8004 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
8005 | face->tty_dim_p = 1; | |
8006 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
8007 | face->tty_underline_p = 1; | |
8008 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
8009 | face->tty_reverse_p = 1; | |
8010 | ||
8011 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
8012 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
8013 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 8014 | |
2d764c78 EZ |
8015 | /* Swap colors if face is inverse-video. If the colors are taken |
8016 | from the frame colors, they are already inverted, since the | |
8017 | frame-creation function calls x-handle-reverse-video. */ | |
8018 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
8019 | { |
8020 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
8021 | face->foreground = face->background; |
8022 | face->background = tem; | |
8023 | } | |
44747bd0 | 8024 | |
a4a76b61 GM |
8025 | if (tty_suppress_bold_inverse_default_colors_p |
8026 | && face->tty_bold_p | |
8027 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
8028 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
8029 | face->tty_bold_p = 0; | |
8030 | ||
82641697 | 8031 | return face; |
729425b1 | 8032 | } |
867dd159 | 8033 | |
82641697 | 8034 | |
a4a76b61 GM |
8035 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
8036 | Ftty_suppress_bold_inverse_default_colors, | |
8037 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 8038 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
8039 | SUPPRESS non-nil means suppress it. |
8040 | This affects bold faces on TTYs whose foreground is the default background | |
8041 | color of the display and whose background is the default foreground color. | |
8042 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
8043 | is non-nil. */) |
8044 | (suppress) | |
a4a76b61 GM |
8045 | Lisp_Object suppress; |
8046 | { | |
8047 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
8048 | ++face_change_count; | |
8049 | return suppress; | |
8050 | } | |
8051 | ||
8052 | ||
82641697 GM |
8053 | \f |
8054 | /*********************************************************************** | |
8055 | Computing Faces | |
8056 | ***********************************************************************/ | |
8057 | ||
8058 | /* Return the ID of the face to use to display character CH with face | |
8059 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
8060 | |
8061 | int | |
82641697 | 8062 | compute_char_face (f, ch, prop) |
2e16580f | 8063 | struct frame *f; |
82641697 GM |
8064 | int ch; |
8065 | Lisp_Object prop; | |
2e16580f | 8066 | { |
82641697 | 8067 | int face_id; |
39506348 KH |
8068 | |
8069 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 8070 | ch = 0; |
178c5d9c | 8071 | |
82641697 | 8072 | if (NILP (prop)) |
39506348 KH |
8073 | { |
8074 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
779c6fb6 | 8075 | face_id = FACE_FOR_CHAR (f, face, ch, -1, Qnil); |
39506348 | 8076 | } |
82641697 | 8077 | else |
2e16580f | 8078 | { |
82641697 GM |
8079 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
8080 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
8081 | bcopy (default_face->lface, attrs, sizeof attrs); | |
a0a23346 | 8082 | merge_face_ref (f, prop, attrs, 1, 0); |
af53b43c | 8083 | face_id = lookup_face (f, attrs); |
2e16580f RS |
8084 | } |
8085 | ||
82641697 | 8086 | return face_id; |
2e16580f | 8087 | } |
bc0db68d | 8088 | |
82641697 GM |
8089 | /* Return the face ID associated with buffer position POS for |
8090 | displaying ASCII characters. Return in *ENDPTR the position at | |
8091 | which a different face is needed, as far as text properties and | |
8092 | overlays are concerned. W is a window displaying current_buffer. | |
8093 | ||
8094 | REGION_BEG, REGION_END delimit the region, so it can be | |
8095 | highlighted. | |
6f134486 | 8096 | |
82641697 GM |
8097 | LIMIT is a position not to scan beyond. That is to limit the time |
8098 | this function can take. | |
8099 | ||
8100 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
8101 | ||
39506348 | 8102 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 8103 | |
cb637678 | 8104 | int |
82641697 GM |
8105 | face_at_buffer_position (w, pos, region_beg, region_end, |
8106 | endptr, limit, mouse) | |
f211082d | 8107 | struct window *w; |
7b7739b1 | 8108 | int pos; |
bc0db68d | 8109 | int region_beg, region_end; |
7b7739b1 | 8110 | int *endptr; |
b349f4fb | 8111 | int limit; |
6f134486 | 8112 | int mouse; |
7b7739b1 | 8113 | { |
82641697 GM |
8114 | struct frame *f = XFRAME (w->frame); |
8115 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 8116 | Lisp_Object prop, position; |
82641697 | 8117 | int i, noverlays; |
7b7739b1 | 8118 | Lisp_Object *overlay_vec; |
f211082d | 8119 | Lisp_Object frame; |
f6b98e0b | 8120 | int endpos; |
82641697 GM |
8121 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
8122 | Lisp_Object limit1, end; | |
8123 | struct face *default_face; | |
f6b98e0b JB |
8124 | |
8125 | /* W must display the current buffer. We could write this function | |
8126 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 8127 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 8128 | |
ac22a6c4 | 8129 | XSETFRAME (frame, f); |
82641697 | 8130 | XSETFASTINT (position, pos); |
7b7739b1 | 8131 | |
f6b98e0b | 8132 | endpos = ZV; |
bc0db68d RS |
8133 | if (pos < region_beg && region_beg < endpos) |
8134 | endpos = region_beg; | |
f6b98e0b | 8135 | |
82641697 GM |
8136 | /* Get the `face' or `mouse_face' text property at POS, and |
8137 | determine the next position at which the property changes. */ | |
6f134486 | 8138 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
8139 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
8140 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
8141 | if (INTEGERP (end)) | |
8142 | endpos = XINT (end); | |
6f134486 | 8143 | |
82641697 | 8144 | /* Look at properties from overlays. */ |
b6d40e46 | 8145 | { |
f6b98e0b | 8146 | int next_overlay; |
b6d40e46 | 8147 | |
0bc90bba | 8148 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
8149 | if (next_overlay < endpos) |
8150 | endpos = next_overlay; | |
b6d40e46 JB |
8151 | } |
8152 | ||
8153 | *endptr = endpos; | |
7b7739b1 | 8154 | |
82641697 | 8155 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 8156 | |
82641697 GM |
8157 | /* Optimize common cases where we can use the default face. */ |
8158 | if (noverlays == 0 | |
8159 | && NILP (prop) | |
39506348 | 8160 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
8161 | return DEFAULT_FACE_ID; |
8162 | ||
8163 | /* Begin with attributes from the default face. */ | |
8164 | bcopy (default_face->lface, attrs, sizeof attrs); | |
8165 | ||
8166 | /* Merge in attributes specified via text properties. */ | |
8167 | if (!NILP (prop)) | |
a0a23346 | 8168 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8169 | |
8170 | /* Now merge the overlay data. */ | |
18195655 | 8171 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 8172 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 8173 | { |
18195655 RS |
8174 | Lisp_Object oend; |
8175 | int oendpos; | |
8176 | ||
8177 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 8178 | if (!NILP (prop)) |
a0a23346 | 8179 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
8180 | |
8181 | oend = OVERLAY_END (overlay_vec[i]); | |
8182 | oendpos = OVERLAY_POSITION (oend); | |
8183 | if (oendpos < endpos) | |
8184 | endpos = oendpos; | |
8185 | } | |
8186 | ||
82641697 | 8187 | /* If in the region, merge in the region face. */ |
18195655 RS |
8188 | if (pos >= region_beg && pos < region_end) |
8189 | { | |
a0a23346 | 8190 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 8191 | |
18195655 RS |
8192 | if (region_end < endpos) |
8193 | endpos = region_end; | |
18195655 RS |
8194 | } |
8195 | ||
8196 | *endptr = endpos; | |
8197 | ||
82641697 | 8198 | /* Look up a realized face with the given face attributes, |
39506348 | 8199 | or realize a new one for ASCII characters. */ |
af53b43c | 8200 | return lookup_face (f, attrs); |
18195655 RS |
8201 | } |
8202 | ||
a193ecf1 RS |
8203 | /* Return the face ID at buffer position POS for displaying ASCII |
8204 | characters associated with overlay strings for overlay OVERLAY. | |
8205 | ||
8206 | Like face_at_buffer_position except for OVERLAY. Currently it | |
8207 | simply disregards the `face' properties of all overlays. */ | |
03e1d617 RS |
8208 | |
8209 | int | |
a193ecf1 RS |
8210 | face_for_overlay_string (w, pos, region_beg, region_end, |
8211 | endptr, limit, mouse, overlay) | |
03e1d617 RS |
8212 | struct window *w; |
8213 | int pos; | |
8214 | int region_beg, region_end; | |
8215 | int *endptr; | |
8216 | int limit; | |
8217 | int mouse; | |
a193ecf1 | 8218 | Lisp_Object overlay; |
03e1d617 RS |
8219 | { |
8220 | struct frame *f = XFRAME (w->frame); | |
8221 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8222 | Lisp_Object prop, position; | |
03e1d617 RS |
8223 | Lisp_Object frame; |
8224 | int endpos; | |
8225 | Lisp_Object propname = mouse ? Qmouse_face : Qface; | |
8226 | Lisp_Object limit1, end; | |
8227 | struct face *default_face; | |
8228 | ||
8229 | /* W must display the current buffer. We could write this function | |
8230 | to use the frame and buffer of W, but right now it doesn't. */ | |
8231 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ | |
8232 | ||
8233 | XSETFRAME (frame, f); | |
8234 | XSETFASTINT (position, pos); | |
8235 | ||
8236 | endpos = ZV; | |
8237 | if (pos < region_beg && region_beg < endpos) | |
8238 | endpos = region_beg; | |
8239 | ||
8240 | /* Get the `face' or `mouse_face' text property at POS, and | |
8241 | determine the next position at which the property changes. */ | |
8242 | prop = Fget_text_property (position, propname, w->buffer); | |
8243 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); | |
8244 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
8245 | if (INTEGERP (end)) | |
8246 | endpos = XINT (end); | |
8247 | ||
8248 | *endptr = endpos; | |
8249 | ||
8250 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
8251 | ||
8252 | /* Optimize common cases where we can use the default face. */ | |
8253 | if (NILP (prop) | |
8254 | && !(pos >= region_beg && pos < region_end)) | |
8255 | return DEFAULT_FACE_ID; | |
8256 | ||
8257 | /* Begin with attributes from the default face. */ | |
8258 | bcopy (default_face->lface, attrs, sizeof attrs); | |
8259 | ||
8260 | /* Merge in attributes specified via text properties. */ | |
8261 | if (!NILP (prop)) | |
8262 | merge_face_ref (f, prop, attrs, 1, 0); | |
8263 | ||
8264 | /* If in the region, merge in the region face. */ | |
8265 | if (pos >= region_beg && pos < region_end) | |
8266 | { | |
8267 | merge_named_face (f, Qregion, attrs, 0); | |
8268 | ||
8269 | if (region_end < endpos) | |
8270 | endpos = region_end; | |
8271 | } | |
8272 | ||
8273 | *endptr = endpos; | |
8274 | ||
8275 | /* Look up a realized face with the given face attributes, | |
8276 | or realize a new one for ASCII characters. */ | |
ce9c2e7b | 8277 | return lookup_face (f, attrs); |
03e1d617 RS |
8278 | } |
8279 | ||
60573a90 | 8280 | |
82641697 | 8281 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 8282 | window W, for ASCII characters. |
7b7739b1 | 8283 | |
82641697 GM |
8284 | If STRING is an overlay string, it comes from position BUFPOS in |
8285 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
8286 | not an overlay string. W must display the current buffer. | |
8287 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
8288 | region; both are -1 if no region is visible. |
8289 | ||
8290 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
8291 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 8292 | |
48a4ca99 GM |
8293 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
8294 | ||
82641697 GM |
8295 | Set *ENDPTR to the next position where to check for faces in |
8296 | STRING; -1 if the face is constant from POS to the end of the | |
8297 | string. | |
18195655 | 8298 | |
82641697 | 8299 | Value is the id of the face to use. The face returned is suitable |
39506348 | 8300 | for displaying ASCII characters. */ |
fffc2367 | 8301 | |
82641697 GM |
8302 | int |
8303 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 8304 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
8305 | struct window *w; |
8306 | Lisp_Object string; | |
8307 | int pos, bufpos; | |
8308 | int region_beg, region_end; | |
8309 | int *endptr; | |
8310 | enum face_id base_face_id; | |
48a4ca99 | 8311 | int mouse_p; |
660ed669 | 8312 | { |
82641697 GM |
8313 | Lisp_Object prop, position, end, limit; |
8314 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
8315 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8316 | struct face *base_face; | |
8317 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 8318 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
8319 | |
8320 | /* Get the value of the face property at the current position within | |
8321 | STRING. Value is nil if there is no face property. */ | |
8322 | XSETFASTINT (position, pos); | |
48a4ca99 | 8323 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
8324 | |
8325 | /* Get the next position at which to check for faces. Value of end | |
8326 | is nil if face is constant all the way to the end of the string. | |
8327 | Otherwise it is a string position where to check faces next. | |
8328 | Limit is the maximum position up to which to check for property | |
8329 | changes in Fnext_single_property_change. Strings are usually | |
8330 | short, so set the limit to the end of the string. */ | |
d5db4077 | 8331 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 8332 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
8333 | if (INTEGERP (end)) |
8334 | *endptr = XFASTINT (end); | |
8335 | else | |
8336 | *endptr = -1; | |
8337 | ||
8338 | base_face = FACE_FROM_ID (f, base_face_id); | |
8339 | xassert (base_face); | |
8340 | ||
8341 | /* Optimize the default case that there is no face property and we | |
8342 | are not in the region. */ | |
8343 | if (NILP (prop) | |
8344 | && (base_face_id != DEFAULT_FACE_ID | |
8345 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
8346 | that the region doesn't have to be taken into account. */ | |
8347 | || bufpos <= 0 | |
8348 | || bufpos < region_beg | |
8349 | || bufpos >= region_end) | |
8350 | && (multibyte_p | |
8351 | /* We can't realize faces for different charsets differently | |
8352 | if we don't have fonts, so we can stop here if not working | |
8353 | on a window-system frame. */ | |
8354 | || !FRAME_WINDOW_P (f) | |
39506348 | 8355 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
8356 | return base_face->id; |
8357 | ||
8358 | /* Begin with attributes from the base face. */ | |
8359 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8360 | ||
8361 | /* Merge in attributes specified via text properties. */ | |
8362 | if (!NILP (prop)) | |
a0a23346 | 8363 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8364 | |
8365 | /* If in the region, merge in the region face. */ | |
8366 | if (bufpos | |
8367 | && bufpos >= region_beg | |
8368 | && bufpos < region_end) | |
a0a23346 | 8369 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 8370 | |
82641697 | 8371 | /* Look up a realized face with the given face attributes, |
39506348 | 8372 | or realize a new one for ASCII characters. */ |
af53b43c | 8373 | return lookup_face (f, attrs); |
660ed669 JB |
8374 | } |
8375 | ||
8376 | ||
fd998c7f KS |
8377 | /* Merge a face into a realized face. |
8378 | ||
8379 | F is frame where faces are (to be) realized. | |
8380 | ||
dc91a0ed KS |
8381 | FACE_NAME is named face to merge. |
8382 | ||
8383 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
8384 | ||
8385 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
8386 | |
8387 | BASE_FACE_ID is realized face to merge into. | |
8388 | ||
dc91a0ed | 8389 | Return new face id. |
fd998c7f KS |
8390 | */ |
8391 | ||
8392 | int | |
dc91a0ed | 8393 | merge_faces (f, face_name, face_id, base_face_id) |
fd998c7f KS |
8394 | struct frame *f; |
8395 | Lisp_Object face_name; | |
8396 | int face_id, base_face_id; | |
8397 | { | |
8398 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8399 | struct face *base_face; | |
8400 | ||
8401 | base_face = FACE_FROM_ID (f, base_face_id); | |
8402 | if (!base_face) | |
8403 | return base_face_id; | |
8404 | ||
dc91a0ed KS |
8405 | if (EQ (face_name, Qt)) |
8406 | { | |
8407 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
8408 | return base_face_id; | |
8409 | face_name = lface_id_to_name[face_id]; | |
5c538596 | 8410 | face_id = lookup_derived_face (f, face_name, base_face_id, 1); |
dc91a0ed KS |
8411 | if (face_id >= 0) |
8412 | return face_id; | |
8413 | return base_face_id; | |
8414 | } | |
8415 | ||
fd998c7f KS |
8416 | /* Begin with attributes from the base face. */ |
8417 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8418 | ||
8419 | if (!NILP (face_name)) | |
8420 | { | |
8421 | if (!merge_named_face (f, face_name, attrs, 0)) | |
8422 | return base_face_id; | |
8423 | } | |
8424 | else | |
8425 | { | |
8426 | struct face *face; | |
dc91a0ed KS |
8427 | if (face_id < 0) |
8428 | return base_face_id; | |
fd998c7f KS |
8429 | face = FACE_FROM_ID (f, face_id); |
8430 | if (!face) | |
8431 | return base_face_id; | |
8432 | merge_face_vectors (f, face->lface, attrs, 0); | |
8433 | } | |
8434 | ||
8435 | /* Look up a realized face with the given face attributes, | |
8436 | or realize a new one for ASCII characters. */ | |
0e3ae538 | 8437 | return lookup_face (f, attrs); |
fd998c7f KS |
8438 | } |
8439 | ||
c115973b | 8440 | \f |
82641697 GM |
8441 | /*********************************************************************** |
8442 | Tests | |
8443 | ***********************************************************************/ | |
c115973b | 8444 | |
82641697 | 8445 | #if GLYPH_DEBUG |
c115973b | 8446 | |
82641697 | 8447 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 8448 | |
82641697 GM |
8449 | static void |
8450 | dump_realized_face (face) | |
8451 | struct face *face; | |
8452 | { | |
8453 | fprintf (stderr, "ID: %d\n", face->id); | |
8454 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 8455 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
8456 | #endif |
8457 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
8458 | face->foreground, | |
d5db4077 | 8459 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
8460 | fprintf (stderr, "background: 0x%lx (%s)\n", |
8461 | face->background, | |
d5db4077 | 8462 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
8463 | fprintf (stderr, "font_name: %s (%s)\n", |
8464 | face->font_name, | |
d5db4077 | 8465 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
8466 | #ifdef HAVE_X_WINDOWS |
8467 | fprintf (stderr, "font = %p\n", face->font); | |
8468 | #endif | |
8469 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
8470 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
8471 | fprintf (stderr, "underline: %d (%s)\n", | |
8472 | face->underline_p, | |
d5db4077 | 8473 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 | 8474 | fprintf (stderr, "hash: %d\n", face->hash); |
c115973b JB |
8475 | } |
8476 | ||
8477 | ||
7ee72033 MB |
8478 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
8479 | (n) | |
82641697 | 8480 | Lisp_Object n; |
c115973b | 8481 | { |
82641697 | 8482 | if (NILP (n)) |
c115973b | 8483 | { |
82641697 | 8484 | int i; |
178c5d9c | 8485 | |
82641697 GM |
8486 | fprintf (stderr, "font selection order: "); |
8487 | for (i = 0; i < DIM (font_sort_order); ++i) | |
8488 | fprintf (stderr, "%d ", font_sort_order[i]); | |
8489 | fprintf (stderr, "\n"); | |
8490 | ||
8491 | fprintf (stderr, "alternative fonts: "); | |
8492 | debug_print (Vface_alternative_font_family_alist); | |
8493 | fprintf (stderr, "\n"); | |
178c5d9c | 8494 | |
c0617987 | 8495 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 8496 | Fdump_face (make_number (i)); |
c115973b JB |
8497 | } |
8498 | else | |
f5e278c7 | 8499 | { |
82641697 | 8500 | struct face *face; |
b7826503 | 8501 | CHECK_NUMBER (n); |
c0617987 | 8502 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
8503 | if (face == NULL) |
8504 | error ("Not a valid face"); | |
8505 | dump_realized_face (face); | |
f5e278c7 | 8506 | } |
178c5d9c | 8507 | |
c115973b JB |
8508 | return Qnil; |
8509 | } | |
b5c53576 | 8510 | |
b5c53576 | 8511 | |
82641697 | 8512 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
8513 | 0, 0, 0, doc: /* */) |
8514 | () | |
b5c53576 | 8515 | { |
82641697 GM |
8516 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
8517 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
8518 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
8519 | return Qnil; | |
b5c53576 RS |
8520 | } |
8521 | ||
82641697 GM |
8522 | #endif /* GLYPH_DEBUG != 0 */ |
8523 | ||
b5c53576 | 8524 | |
c115973b | 8525 | \f |
82641697 GM |
8526 | /*********************************************************************** |
8527 | Initialization | |
8528 | ***********************************************************************/ | |
cb637678 | 8529 | |
c115973b | 8530 | void |
f211082d | 8531 | syms_of_xfaces () |
c115973b | 8532 | { |
f211082d JB |
8533 | Qface = intern ("face"); |
8534 | staticpro (&Qface); | |
46b00436 KS |
8535 | Qface_no_inherit = intern ("face-no-inherit"); |
8536 | staticpro (&Qface_no_inherit); | |
fef04523 GM |
8537 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
8538 | staticpro (&Qbitmap_spec_p); | |
c20577bc JL |
8539 | Qframe_set_background_mode = intern ("frame-set-background-mode"); |
8540 | staticpro (&Qframe_set_background_mode); | |
178c5d9c | 8541 | |
82641697 GM |
8542 | /* Lisp face attribute keywords. */ |
8543 | QCfamily = intern (":family"); | |
8544 | staticpro (&QCfamily); | |
8545 | QCheight = intern (":height"); | |
8546 | staticpro (&QCheight); | |
8547 | QCweight = intern (":weight"); | |
8548 | staticpro (&QCweight); | |
8549 | QCslant = intern (":slant"); | |
8550 | staticpro (&QCslant); | |
8551 | QCunderline = intern (":underline"); | |
8552 | staticpro (&QCunderline); | |
8553 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 8554 | staticpro (&QCinverse_video); |
82641697 GM |
8555 | QCreverse_video = intern (":reverse-video"); |
8556 | staticpro (&QCreverse_video); | |
8557 | QCforeground = intern (":foreground"); | |
8558 | staticpro (&QCforeground); | |
8559 | QCbackground = intern (":background"); | |
8560 | staticpro (&QCbackground); | |
3b8c0c70 | 8561 | QCstipple = intern (":stipple"); |
82641697 GM |
8562 | staticpro (&QCstipple); |
8563 | QCwidth = intern (":width"); | |
8564 | staticpro (&QCwidth); | |
8565 | QCfont = intern (":font"); | |
8566 | staticpro (&QCfont); | |
763bc839 KH |
8567 | QCfontset = intern (":fontset"); |
8568 | staticpro (&QCfontset); | |
82641697 GM |
8569 | QCbold = intern (":bold"); |
8570 | staticpro (&QCbold); | |
8571 | QCitalic = intern (":italic"); | |
8572 | staticpro (&QCitalic); | |
8573 | QCoverline = intern (":overline"); | |
8574 | staticpro (&QCoverline); | |
8575 | QCstrike_through = intern (":strike-through"); | |
8576 | staticpro (&QCstrike_through); | |
8577 | QCbox = intern (":box"); | |
8578 | staticpro (&QCbox); | |
2c20458f MB |
8579 | QCinherit = intern (":inherit"); |
8580 | staticpro (&QCinherit); | |
82641697 GM |
8581 | |
8582 | /* Symbols used for Lisp face attribute values. */ | |
8583 | QCcolor = intern (":color"); | |
8584 | staticpro (&QCcolor); | |
8585 | QCline_width = intern (":line-width"); | |
8586 | staticpro (&QCline_width); | |
8587 | QCstyle = intern (":style"); | |
8588 | staticpro (&QCstyle); | |
8589 | Qreleased_button = intern ("released-button"); | |
8590 | staticpro (&Qreleased_button); | |
8591 | Qpressed_button = intern ("pressed-button"); | |
8592 | staticpro (&Qpressed_button); | |
8593 | Qnormal = intern ("normal"); | |
8594 | staticpro (&Qnormal); | |
8595 | Qultra_light = intern ("ultra-light"); | |
8596 | staticpro (&Qultra_light); | |
8597 | Qextra_light = intern ("extra-light"); | |
8598 | staticpro (&Qextra_light); | |
8599 | Qlight = intern ("light"); | |
8600 | staticpro (&Qlight); | |
8601 | Qsemi_light = intern ("semi-light"); | |
8602 | staticpro (&Qsemi_light); | |
8603 | Qsemi_bold = intern ("semi-bold"); | |
8604 | staticpro (&Qsemi_bold); | |
8605 | Qbold = intern ("bold"); | |
8606 | staticpro (&Qbold); | |
8607 | Qextra_bold = intern ("extra-bold"); | |
8608 | staticpro (&Qextra_bold); | |
8609 | Qultra_bold = intern ("ultra-bold"); | |
8610 | staticpro (&Qultra_bold); | |
8611 | Qoblique = intern ("oblique"); | |
8612 | staticpro (&Qoblique); | |
8613 | Qitalic = intern ("italic"); | |
8614 | staticpro (&Qitalic); | |
8615 | Qreverse_oblique = intern ("reverse-oblique"); | |
8616 | staticpro (&Qreverse_oblique); | |
8617 | Qreverse_italic = intern ("reverse-italic"); | |
8618 | staticpro (&Qreverse_italic); | |
8619 | Qultra_condensed = intern ("ultra-condensed"); | |
8620 | staticpro (&Qultra_condensed); | |
8621 | Qextra_condensed = intern ("extra-condensed"); | |
8622 | staticpro (&Qextra_condensed); | |
8623 | Qcondensed = intern ("condensed"); | |
8624 | staticpro (&Qcondensed); | |
8625 | Qsemi_condensed = intern ("semi-condensed"); | |
8626 | staticpro (&Qsemi_condensed); | |
8627 | Qsemi_expanded = intern ("semi-expanded"); | |
8628 | staticpro (&Qsemi_expanded); | |
8629 | Qexpanded = intern ("expanded"); | |
8630 | staticpro (&Qexpanded); | |
8631 | Qextra_expanded = intern ("extra-expanded"); | |
8632 | staticpro (&Qextra_expanded); | |
8633 | Qultra_expanded = intern ("ultra-expanded"); | |
8634 | staticpro (&Qultra_expanded); | |
8635 | Qbackground_color = intern ("background-color"); | |
8636 | staticpro (&Qbackground_color); | |
8637 | Qforeground_color = intern ("foreground-color"); | |
8638 | staticpro (&Qforeground_color); | |
8639 | Qunspecified = intern ("unspecified"); | |
8640 | staticpro (&Qunspecified); | |
2ff10663 CY |
8641 | Qignore_defface = intern (":ignore-defface"); |
8642 | staticpro (&Qignore_defface); | |
82641697 | 8643 | |
92610620 GM |
8644 | Qface_alias = intern ("face-alias"); |
8645 | staticpro (&Qface_alias); | |
82641697 GM |
8646 | Qdefault = intern ("default"); |
8647 | staticpro (&Qdefault); | |
9ea173e8 GM |
8648 | Qtool_bar = intern ("tool-bar"); |
8649 | staticpro (&Qtool_bar); | |
82641697 GM |
8650 | Qregion = intern ("region"); |
8651 | staticpro (&Qregion); | |
8bd201d6 GM |
8652 | Qfringe = intern ("fringe"); |
8653 | staticpro (&Qfringe); | |
045dee35 GM |
8654 | Qheader_line = intern ("header-line"); |
8655 | staticpro (&Qheader_line); | |
8bd201d6 GM |
8656 | Qscroll_bar = intern ("scroll-bar"); |
8657 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
8658 | Qmenu = intern ("menu"); |
8659 | staticpro (&Qmenu); | |
8bd201d6 GM |
8660 | Qcursor = intern ("cursor"); |
8661 | staticpro (&Qcursor); | |
8662 | Qborder = intern ("border"); | |
8663 | staticpro (&Qborder); | |
8664 | Qmouse = intern ("mouse"); | |
8665 | staticpro (&Qmouse); | |
039b6394 KS |
8666 | Qmode_line_inactive = intern ("mode-line-inactive"); |
8667 | staticpro (&Qmode_line_inactive); | |
53abc3bf MB |
8668 | Qvertical_border = intern ("vertical-border"); |
8669 | staticpro (&Qvertical_border); | |
2d764c78 EZ |
8670 | Qtty_color_desc = intern ("tty-color-desc"); |
8671 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
8672 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
8673 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
8674 | Qtty_color_by_index = intern ("tty-color-by-index"); |
8675 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
8676 | Qtty_color_alist = intern ("tty-color-alist"); |
8677 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
8678 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
8679 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 8680 | |
dbc968b8 GM |
8681 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
8682 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
8683 | Vface_alternative_font_family_alist = Qnil; |
8684 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
8685 | Vface_alternative_font_registry_alist = Qnil; |
8686 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 8687 | |
82641697 GM |
8688 | defsubr (&Sinternal_make_lisp_face); |
8689 | defsubr (&Sinternal_lisp_face_p); | |
8690 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 8691 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 8692 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 8693 | #endif |
ea4fa0af GM |
8694 | defsubr (&Scolor_gray_p); |
8695 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
8696 | defsubr (&Sface_attribute_relative_p); |
8697 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
8698 | defsubr (&Sinternal_get_lisp_face_attribute); |
8699 | defsubr (&Sinternal_lisp_face_attribute_values); | |
8700 | defsubr (&Sinternal_lisp_face_equal_p); | |
8701 | defsubr (&Sinternal_lisp_face_empty_p); | |
8702 | defsubr (&Sinternal_copy_lisp_face); | |
8703 | defsubr (&Sinternal_merge_in_global_face); | |
8704 | defsubr (&Sface_font); | |
8705 | defsubr (&Sframe_face_alist); | |
9717e36c | 8706 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 8707 | defsubr (&Scolor_distance); |
82641697 GM |
8708 | defsubr (&Sinternal_set_font_selection_order); |
8709 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 8710 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 8711 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
8712 | #if GLYPH_DEBUG |
8713 | defsubr (&Sdump_face); | |
8714 | defsubr (&Sshow_face_resources); | |
8715 | #endif /* GLYPH_DEBUG */ | |
8716 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 8717 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 8718 | |
38426dee | 8719 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
8720 | defsubr (&Sdump_colors); |
8721 | #endif | |
8722 | ||
7ee72033 MB |
8723 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
8724 | doc: /* *Limit for font matching. | |
228299fa GM |
8725 | If an integer > 0, font matching functions won't load more than |
8726 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
8727 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
8728 | ||
7ee72033 MB |
8729 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
8730 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 8731 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 8732 | |
7ee72033 MB |
8733 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
8734 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
8735 | This stipple pattern is used on monochrome displays |
8736 | instead of shades of gray for a face background color. | |
8737 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
8738 | Vface_default_stipple = build_string ("gray3"); |
8739 | ||
7ee72033 MB |
8740 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
8741 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
8742 | Vtty_defined_color_alist = Qnil; |
8743 | ||
7ee72033 MB |
8744 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
8745 | doc: /* Allowed scalable fonts. | |
228299fa GM |
8746 | A value of nil means don't allow any scalable fonts. |
8747 | A value of t means allow any scalable font. | |
8748 | Otherwise, value must be a list of regular expressions. A font may be | |
8749 | scaled if its name matches a regular expression in the list. | |
8750 | Note that if value is nil, a scalable font might still be used, if no | |
8751 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 8752 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 8753 | |
7ee72033 MB |
8754 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
8755 | doc: /* List of ignored fonts. | |
228299fa GM |
8756 | Each element is a regular expression that matches names of fonts to |
8757 | ignore. */); | |
c824bfbc KH |
8758 | Vface_ignored_fonts = Qnil; |
8759 | ||
f70400f2 KH |
8760 | DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist, |
8761 | doc: /* Alist of fonts vs the rescaling factors. | |
8762 | Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where | |
8763 | FONT-NAME-PATTERN is a regular expression matching a font name, and | |
8764 | RESCALE-RATIO is a floating point number to specify how much larger | |
8765 | \(or smaller) font we should use. For instance, if a face requests | |
8766 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
8767 | Vface_font_rescale_alist = Qnil; | |
8768 | ||
c3cee013 | 8769 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 8770 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
8771 | defsubr (&Sx_list_fonts); |
8772 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 8773 | defsubr (&Sx_family_fonts); |
82641697 | 8774 | defsubr (&Sx_font_family_list); |
c3cee013 | 8775 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 8776 | } |
6b61353c KH |
8777 | |
8778 | /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749 | |
8779 | (do not change this comment) */ |