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 | 896 | { |
354884c4 SM |
897 | if (FRAME_IMAGE_CACHE (f) == NULL) |
898 | /* Is that ever possible?? --Stef */ | |
899 | FRAME_IMAGE_CACHE (f) = make_image_cache (); | |
900 | ++FRAME_IMAGE_CACHE (f)->refcount; | |
82641697 | 901 | } |
c3cee013 | 902 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 903 | |
178c5d9c | 904 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
905 | parameters to realize basic faces at this point. */ |
906 | #ifdef HAVE_X_WINDOWS | |
907 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
908 | #endif |
909 | #ifdef WINDOWSNT | |
910 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
911 | #endif |
912 | #ifdef MAC_OS | |
913 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
914 | #endif |
915 | if (!realize_basic_faces (f)) | |
916 | abort (); | |
917 | } | |
cb637678 | 918 | |
cb637678 | 919 | |
82641697 | 920 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 921 | |
82641697 GM |
922 | void |
923 | free_frame_faces (f) | |
cb637678 | 924 | struct frame *f; |
cb637678 | 925 | { |
82641697 | 926 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 927 | |
82641697 GM |
928 | if (face_cache) |
929 | { | |
930 | free_face_cache (face_cache); | |
931 | FRAME_FACE_CACHE (f) = NULL; | |
932 | } | |
660ed669 | 933 | |
c3cee013 JR |
934 | #ifdef HAVE_WINDOW_SYSTEM |
935 | if (FRAME_WINDOW_P (f)) | |
195f798e | 936 | { |
354884c4 | 937 | struct image_cache *image_cache = FRAME_IMAGE_CACHE (f); |
82641697 | 938 | if (image_cache) |
195f798e | 939 | { |
82641697 GM |
940 | --image_cache->refcount; |
941 | if (image_cache->refcount == 0) | |
942 | free_image_cache (f); | |
195f798e RS |
943 | } |
944 | } | |
c3cee013 | 945 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
946 | } |
947 | ||
82641697 | 948 | |
8bd201d6 GM |
949 | /* Clear face caches, and recompute basic faces for frame F. Call |
950 | this after changing frame parameters on which those faces depend, | |
951 | or when realized faces have been freed due to changing attributes | |
952 | of named faces. */ | |
82641697 GM |
953 | |
954 | void | |
955 | recompute_basic_faces (f) | |
cb637678 | 956 | struct frame *f; |
cb637678 | 957 | { |
82641697 GM |
958 | if (FRAME_FACE_CACHE (f)) |
959 | { | |
8bd201d6 | 960 | clear_face_cache (0); |
18df9369 GM |
961 | if (!realize_basic_faces (f)) |
962 | abort (); | |
82641697 GM |
963 | } |
964 | } | |
cb637678 | 965 | |
cb637678 | 966 | |
82641697 GM |
967 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
968 | try to free unused fonts, too. */ | |
cb637678 | 969 | |
adfea139 | 970 | void |
82641697 GM |
971 | clear_face_cache (clear_fonts_p) |
972 | int clear_fonts_p; | |
cb637678 | 973 | { |
c3cee013 | 974 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
975 | Lisp_Object tail, frame; |
976 | struct frame *f; | |
828e66d1 | 977 | |
82641697 GM |
978 | if (clear_fonts_p |
979 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 980 | { |
d5641fc5 | 981 | struct x_display_info *dpyinfo; |
177c0ea7 | 982 | |
426b2119 KH |
983 | #ifdef USE_FONT_BACKEND |
984 | if (! enable_font_backend) | |
985 | #endif /* USE_FONT_BACKEND */ | |
d5641fc5 GM |
986 | /* Fonts are common for frames on one display, i.e. on |
987 | one X screen. */ | |
988 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
989 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
990 | clear_font_table (dpyinfo); | |
177c0ea7 | 991 | |
82641697 GM |
992 | /* From time to time see if we can unload some fonts. This also |
993 | frees all realized faces on all frames. Fonts needed by | |
994 | faces will be loaded again when faces are realized again. */ | |
995 | clear_font_table_count = 0; | |
195f798e | 996 | |
82641697 | 997 | FOR_EACH_FRAME (tail, frame) |
195f798e | 998 | { |
d5641fc5 | 999 | struct frame *f = XFRAME (frame); |
c3cee013 | 1000 | if (FRAME_WINDOW_P (f) |
82641697 | 1001 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 1002 | free_all_realized_faces (frame); |
82641697 GM |
1003 | } |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | /* Clear GCs of realized faces. */ | |
1008 | FOR_EACH_FRAME (tail, frame) | |
1009 | { | |
1010 | f = XFRAME (frame); | |
c3cee013 | 1011 | if (FRAME_WINDOW_P (f)) |
82641697 | 1012 | clear_face_gcs (FRAME_FACE_CACHE (f)); |
195f798e | 1013 | } |
a2bc5bdd | 1014 | clear_image_caches (Qnil); |
828e66d1 | 1015 | } |
c3cee013 | 1016 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1017 | } |
1018 | ||
82641697 GM |
1019 | |
1020 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1021 | doc: /* Clear face caches on all frames. |
1022 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1023 | (thoroughly) | |
6a3f48c7 | 1024 | Lisp_Object thoroughly; |
cd0bb842 | 1025 | { |
6a3f48c7 | 1026 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1027 | ++face_change_count; |
1028 | ++windows_or_buffers_changed; | |
82641697 GM |
1029 | return Qnil; |
1030 | } | |
1031 | ||
1032 | ||
1033 | ||
c3cee013 | 1034 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1035 | |
1036 | ||
4cba8c0b GM |
1037 | /* Remove fonts from the font table of DPYINFO except for the default |
1038 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1039 | from time to time. */ |
82641697 GM |
1040 | |
1041 | static void | |
d5641fc5 GM |
1042 | clear_font_table (dpyinfo) |
1043 | struct x_display_info *dpyinfo; | |
82641697 | 1044 | { |
82641697 GM |
1045 | int i; |
1046 | ||
d5641fc5 | 1047 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1048 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1049 | { | |
1050 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1051 | Lisp_Object tail, frame; |
1052 | ||
1053 | /* Check if slot is already free. */ | |
1054 | if (font_info->name == NULL) | |
1055 | continue; | |
1056 | ||
3d90c96c | 1057 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1058 | FOR_EACH_FRAME (tail, frame) |
1059 | { | |
1060 | struct frame *f = XFRAME (frame); | |
1061 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1062 | && font_info->font == FRAME_FONT (f)) |
1063 | break; | |
1064 | } | |
82641697 | 1065 | |
d5641fc5 | 1066 | if (!NILP (tail)) |
39506348 | 1067 | continue; |
82641697 | 1068 | |
39506348 KH |
1069 | /* Free names. */ |
1070 | if (font_info->full_name != font_info->name) | |
1071 | xfree (font_info->full_name); | |
1072 | xfree (font_info->name); | |
82641697 | 1073 | |
39506348 KH |
1074 | /* Free the font. */ |
1075 | BLOCK_INPUT; | |
c3cee013 | 1076 | #ifdef HAVE_X_WINDOWS |
39506348 | 1077 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1078 | #endif |
1079 | #ifdef WINDOWSNT | |
39506348 | 1080 | w32_unload_font (dpyinfo, font_info->font); |
b15325b2 ST |
1081 | #endif |
1082 | #ifdef MAC_OS | |
1083 | mac_unload_font (dpyinfo, font_info->font); | |
c3cee013 | 1084 | #endif |
39506348 | 1085 | UNBLOCK_INPUT; |
82641697 | 1086 | |
39506348 KH |
1087 | /* Mark font table slot free. */ |
1088 | font_info->font = NULL; | |
1089 | font_info->name = font_info->full_name = NULL; | |
1090 | } | |
82641697 GM |
1091 | } |
1092 | ||
c3cee013 | 1093 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1094 | |
1095 | ||
1096 | \f | |
1097 | /*********************************************************************** | |
1098 | X Pixmaps | |
1099 | ***********************************************************************/ | |
1100 | ||
c3cee013 | 1101 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1102 | |
fef04523 | 1103 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1104 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1105 | A bitmap specification is either a string, a file name, or a list |
1106 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1107 | HEIGHT is its height, and DATA is a string containing the bits of | |
1108 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1109 | \(WIDTH + 7)/8 bytes. */) |
1110 | (object) | |
82641697 GM |
1111 | Lisp_Object object; |
1112 | { | |
c7ae3284 | 1113 | int pixmap_p = 0; |
178c5d9c | 1114 | |
c7ae3284 GM |
1115 | if (STRINGP (object)) |
1116 | /* If OBJECT is a string, it's a file name. */ | |
1117 | pixmap_p = 1; | |
1118 | else if (CONSP (object)) | |
1119 | { | |
1120 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1121 | HEIGHT must be integers > 0, and DATA must be string large | |
1122 | enough to hold a bitmap of the specified size. */ | |
1123 | Lisp_Object width, height, data; | |
1124 | ||
1125 | height = width = data = Qnil; | |
178c5d9c | 1126 | |
c7ae3284 GM |
1127 | if (CONSP (object)) |
1128 | { | |
1129 | width = XCAR (object); | |
1130 | object = XCDR (object); | |
1131 | if (CONSP (object)) | |
1132 | { | |
1133 | height = XCAR (object); | |
1134 | object = XCDR (object); | |
1135 | if (CONSP (object)) | |
1136 | data = XCAR (object); | |
1137 | } | |
1138 | } | |
cd0bb842 | 1139 | |
c7ae3284 GM |
1140 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1141 | { | |
1142 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1143 | / BITS_PER_CHAR); | |
d5db4077 | 1144 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1145 | pixmap_p = 1; |
1146 | } | |
1147 | } | |
1148 | ||
1149 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1150 | } |
1151 | ||
cd0bb842 | 1152 | |
82641697 GM |
1153 | /* Load a bitmap according to NAME (which is either a file name or a |
1154 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1155 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1156 | bitmap cannot be loaded, display a message saying so, and return | |
1157 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1158 | if these pointers are not null. */ | |
cd0bb842 | 1159 | |
82641697 | 1160 | static int |
cd0bb842 | 1161 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1162 | FRAME_PTR f; |
cd0bb842 RS |
1163 | Lisp_Object name; |
1164 | unsigned int *w_ptr, *h_ptr; | |
1165 | { | |
1166 | int bitmap_id; | |
cd0bb842 RS |
1167 | |
1168 | if (NILP (name)) | |
82641697 | 1169 | return 0; |
cd0bb842 | 1170 | |
d5ddd1a3 | 1171 | CHECK_TYPE (!NILP (Fbitmap_spec_p (name)), Qbitmap_spec_p, name); |
cd0bb842 RS |
1172 | |
1173 | BLOCK_INPUT; | |
cd0bb842 RS |
1174 | if (CONSP (name)) |
1175 | { | |
1176 | /* Decode a bitmap spec into a bitmap. */ | |
1177 | ||
1178 | int h, w; | |
1179 | Lisp_Object bits; | |
1180 | ||
1181 | w = XINT (Fcar (name)); | |
1182 | h = XINT (Fcar (Fcdr (name))); | |
1183 | bits = Fcar (Fcdr (Fcdr (name))); | |
1184 | ||
d5db4077 | 1185 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1186 | w, h); |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | /* It must be a string -- a file name. */ | |
1191 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1192 | } | |
1193 | UNBLOCK_INPUT; | |
1194 | ||
7812a96f | 1195 | if (bitmap_id < 0) |
82641697 | 1196 | { |
2eb582ae | 1197 | add_to_log ("Invalid or undefined bitmap `%s'", name, Qnil); |
82641697 | 1198 | bitmap_id = 0; |
cd0bb842 | 1199 | |
82641697 GM |
1200 | if (w_ptr) |
1201 | *w_ptr = 0; | |
1202 | if (h_ptr) | |
1203 | *h_ptr = 0; | |
1204 | } | |
1205 | else | |
1206 | { | |
1207 | #if GLYPH_DEBUG | |
1208 | ++npixmaps_allocated; | |
1209 | #endif | |
1210 | if (w_ptr) | |
1211 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1212 | ||
1213 | if (h_ptr) | |
1214 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1215 | } | |
cd0bb842 RS |
1216 | |
1217 | return bitmap_id; | |
cb637678 | 1218 | } |
87485d6f | 1219 | |
c3cee013 | 1220 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1221 | |
87485d6f | 1222 | |
82641697 | 1223 | \f |
82641697 GM |
1224 | /*********************************************************************** |
1225 | Fonts | |
1226 | ***********************************************************************/ | |
1227 | ||
c3cee013 | 1228 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1229 | |
af53b43c | 1230 | /* Load font of face FACE which is used on frame F to display ASCII |
763bc839 | 1231 | characters. The name of the font to load is determined by lface. */ |
82641697 GM |
1232 | |
1233 | static void | |
af53b43c | 1234 | load_face_font (f, face) |
82641697 GM |
1235 | struct frame *f; |
1236 | struct face *face; | |
87485d6f | 1237 | { |
82641697 | 1238 | struct font_info *font_info = NULL; |
39506348 | 1239 | char *font_name; |
6ae2cd57 | 1240 | int needs_overstrike; |
178c5d9c | 1241 | |
426b2119 KH |
1242 | #ifdef USE_FONT_BACKEND |
1243 | if (enable_font_backend) | |
1244 | abort (); | |
1245 | #endif /* USE_FONT_BACKEND */ | |
82641697 | 1246 | face->font_info_id = -1; |
82641697 | 1247 | face->font = NULL; |
af53b43c | 1248 | face->font_name = NULL; |
39506348 | 1249 | |
8f924df7 | 1250 | font_name = choose_face_font (f, face->lface, Qnil, &needs_overstrike); |
39506348 KH |
1251 | if (!font_name) |
1252 | return; | |
1253 | ||
82641697 | 1254 | BLOCK_INPUT; |
81b39386 | 1255 | font_info = FS_LOAD_FONT (f, font_name); |
82641697 GM |
1256 | UNBLOCK_INPUT; |
1257 | ||
1258 | if (font_info) | |
1259 | { | |
39506348 | 1260 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1261 | face->font = font_info->font; |
1262 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1263 | face->overstrike = needs_overstrike; |
39506348 | 1264 | if (face->gc) |
82641697 | 1265 | { |
ed0c79c6 | 1266 | BLOCK_INPUT; |
39506348 KH |
1267 | x_free_gc (f, face->gc); |
1268 | face->gc = 0; | |
ed0c79c6 | 1269 | UNBLOCK_INPUT; |
82641697 GM |
1270 | } |
1271 | } | |
39506348 | 1272 | else |
1b8f7fbc | 1273 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1274 | build_string (font_name), Qnil); |
39506348 | 1275 | xfree (font_name); |
87485d6f MW |
1276 | } |
1277 | ||
c3cee013 | 1278 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1279 | |
87485d6f | 1280 | |
82641697 GM |
1281 | \f |
1282 | /*********************************************************************** | |
1283 | X Colors | |
1284 | ***********************************************************************/ | |
1285 | ||
b35df831 MB |
1286 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1287 | RGB_LIST should contain (at least) 3 lisp integers. | |
1288 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1289 | ||
1290 | static int | |
1291 | parse_rgb_list (rgb_list, color) | |
1292 | Lisp_Object rgb_list; | |
1293 | XColor *color; | |
1294 | { | |
1295 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1296 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1297 | { \ | |
1298 | color->field = XINT (XCAR (rgb_list)); \ | |
1299 | rgb_list = XCDR (rgb_list); \ | |
1300 | } \ | |
1301 | else \ | |
1302 | return 0; | |
1303 | ||
1304 | PARSE_RGB_LIST_FIELD (red); | |
1305 | PARSE_RGB_LIST_FIELD (green); | |
1306 | PARSE_RGB_LIST_FIELD (blue); | |
1307 | ||
1308 | return 1; | |
1309 | } | |
1310 | ||
1311 | ||
1312 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1313 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1314 | non-zero, then the `standard' definition of the same color is | |
1315 | returned in it. */ | |
1316 | ||
1317 | static int | |
1318 | tty_lookup_color (f, color, tty_color, std_color) | |
1319 | struct frame *f; | |
1320 | Lisp_Object color; | |
1321 | XColor *tty_color, *std_color; | |
1322 | { | |
1323 | Lisp_Object frame, color_desc; | |
1324 | ||
1325 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1326 | return 0; | |
1327 | ||
1328 | XSETFRAME (frame, f); | |
1329 | ||
1330 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1331 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1332 | { | |
1333 | Lisp_Object rgb; | |
1334 | ||
1335 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1336 | return 0; | |
1337 | ||
1338 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1339 | ||
1340 | rgb = XCDR (XCDR (color_desc)); | |
1341 | if (! parse_rgb_list (rgb, tty_color)) | |
1342 | return 0; | |
1343 | ||
1344 | /* Should we fill in STD_COLOR too? */ | |
1345 | if (std_color) | |
1346 | { | |
1347 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1348 | *std_color = *tty_color; | |
1349 | ||
1350 | /* Do a quick check to see if the returned descriptor is | |
1351 | actually _exactly_ equal to COLOR, otherwise we have to | |
1352 | lookup STD_COLOR separately. If it's impossible to lookup | |
1353 | a standard color, we just give up and use TTY_COLOR. */ | |
1354 | if ((!STRINGP (XCAR (color_desc)) | |
1355 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1356 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1357 | { |
1358 | /* Look up STD_COLOR separately. */ | |
1359 | rgb = call1 (Qtty_color_standard_values, color); | |
1360 | if (! parse_rgb_list (rgb, std_color)) | |
1361 | return 0; | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | return 1; | |
1366 | } | |
1367 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1368 | /* We were called early during startup, and the colors are not | |
1369 | yet set up in tty-defined-color-alist. Don't return a failure | |
1370 | indication, since this produces the annoying "Unable to | |
1371 | load color" messages in the *Messages* buffer. */ | |
1372 | return 1; | |
1373 | else | |
1374 | /* tty-color-desc seems to have returned a bad value. */ | |
1375 | return 0; | |
1376 | } | |
1377 | ||
2d764c78 | 1378 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1379 | |
2d764c78 EZ |
1380 | int |
1381 | tty_defined_color (f, color_name, color_def, alloc) | |
1382 | struct frame *f; | |
1383 | char *color_name; | |
1384 | XColor *color_def; | |
1385 | int alloc; | |
1386 | { | |
2d764c78 EZ |
1387 | int status = 1; |
1388 | ||
b35df831 | 1389 | /* Defaults. */ |
177c0ea7 | 1390 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1391 | color_def->red = 0; |
1392 | color_def->blue = 0; | |
1393 | color_def->green = 0; | |
a61c12d5 | 1394 | |
b35df831 | 1395 | if (*color_name) |
3062711f | 1396 | status = tty_lookup_color (f, build_string (color_name), color_def, NULL); |
b35df831 MB |
1397 | |
1398 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1399 | { |
1400 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1401 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1402 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1403 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1404 | } |
1405 | ||
b35df831 | 1406 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1407 | status = 1; |
1408 | ||
2d764c78 EZ |
1409 | return status; |
1410 | } | |
1411 | ||
08dc08dc GM |
1412 | |
1413 | /* Decide if color named COLOR_NAME is valid for the display | |
1414 | associated with the frame F; if so, return the rgb values in | |
1415 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1416 | |
1417 | This does the right thing for any type of frame. */ | |
08dc08dc | 1418 | |
2d764c78 EZ |
1419 | int |
1420 | defined_color (f, color_name, color_def, alloc) | |
1421 | struct frame *f; | |
1422 | char *color_name; | |
1423 | XColor *color_def; | |
1424 | int alloc; | |
1425 | { | |
1426 | if (!FRAME_WINDOW_P (f)) | |
1427 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1428 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1429 | else if (FRAME_X_P (f)) |
1430 | return x_defined_color (f, color_name, color_def, alloc); | |
1431 | #endif | |
1432 | #ifdef WINDOWSNT | |
1433 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1434 | return w32_defined_color (f, color_name, color_def, alloc); |
1435 | #endif | |
e0f712ba | 1436 | #ifdef MAC_OS |
2d764c78 | 1437 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1438 | return mac_defined_color (f, color_name, color_def, alloc); |
1439 | #endif | |
1440 | else | |
1441 | abort (); | |
1442 | } | |
1443 | ||
08dc08dc GM |
1444 | |
1445 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1446 | Lisp string. */ | |
2d764c78 EZ |
1447 | |
1448 | Lisp_Object | |
1449 | tty_color_name (f, idx) | |
1450 | struct frame *f; | |
1451 | int idx; | |
1452 | { | |
2d764c78 EZ |
1453 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1454 | { | |
a61c12d5 EZ |
1455 | Lisp_Object frame; |
1456 | Lisp_Object coldesc; | |
1457 | ||
1458 | XSETFRAME (frame, f); | |
1459 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1460 | |
1461 | if (!NILP (coldesc)) | |
1462 | return XCAR (coldesc); | |
1463 | } | |
1464 | #ifdef MSDOS | |
1465 | /* We can have an MSDOG frame under -nw for a short window of | |
1466 | opportunity before internal_terminal_init is called. DTRT. */ | |
1467 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1468 | return msdos_stdcolor_name (idx); | |
1469 | #endif | |
1470 | ||
ef917393 EZ |
1471 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1472 | return build_string (unspecified_fg); | |
1473 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1474 | return build_string (unspecified_bg); | |
c3cee013 | 1475 | |
ef917393 | 1476 | return Qunspecified; |
2d764c78 | 1477 | } |
82641697 | 1478 | |
08dc08dc | 1479 | |
82641697 | 1480 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1481 | black) on frame F. |
1482 | ||
1483 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1484 | |
1485 | static int | |
1486 | face_color_gray_p (f, color_name) | |
1487 | struct frame *f; | |
1488 | char *color_name; | |
1489 | { | |
1490 | XColor color; | |
1491 | int gray_p; | |
1492 | ||
1493 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1494 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1495 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1496 | || | |
1ea40aa2 | 1497 | ((eabs (color.red - color.green) |
71433d39 | 1498 | < max (color.red, color.green) / 20) |
1ea40aa2 | 1499 | && (eabs (color.green - color.blue) |
71433d39 | 1500 | < max (color.green, color.blue) / 20) |
1ea40aa2 | 1501 | && (eabs (color.blue - color.red) |
71433d39 | 1502 | < max (color.blue, color.red) / 20))); |
87485d6f | 1503 | else |
82641697 | 1504 | gray_p = 0; |
178c5d9c | 1505 | |
82641697 | 1506 | return gray_p; |
87485d6f | 1507 | } |
87485d6f | 1508 | |
cb637678 | 1509 | |
82641697 GM |
1510 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1511 | BACKGROUND_P non-zero means the color will be used as background | |
1512 | color. */ | |
1513 | ||
1514 | static int | |
1515 | face_color_supported_p (f, color_name, background_p) | |
1516 | struct frame *f; | |
1517 | char *color_name; | |
1518 | int background_p; | |
1519 | { | |
1520 | Lisp_Object frame; | |
2d764c78 | 1521 | XColor not_used; |
82641697 GM |
1522 | |
1523 | XSETFRAME (frame, f); | |
6b61353c | 1524 | return |
6a46b96b | 1525 | #ifdef HAVE_WINDOW_SYSTEM |
6b61353c KH |
1526 | FRAME_WINDOW_P (f) |
1527 | ? (!NILP (Fxw_display_color_p (frame)) | |
1528 | || xstricmp (color_name, "black") == 0 | |
1529 | || xstricmp (color_name, "white") == 0 | |
1530 | || (background_p | |
1531 | && face_color_gray_p (f, color_name)) | |
1532 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1533 | && face_color_gray_p (f, color_name))) | |
1534 | : | |
1535 | #endif | |
1536 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1537 | } |
82641697 GM |
1538 | |
1539 | ||
da47150d | 1540 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1541 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1542 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1543 | If FRAME is nil or omitted, use the selected frame. */) |
1544 | (color, frame) | |
82641697 | 1545 | Lisp_Object color, frame; |
cb637678 | 1546 | { |
2d764c78 EZ |
1547 | struct frame *f; |
1548 | ||
b7826503 | 1549 | CHECK_STRING (color); |
6b61353c KH |
1550 | if (NILP (frame)) |
1551 | frame = selected_frame; | |
1552 | else | |
1553 | CHECK_FRAME (frame); | |
2d764c78 | 1554 | f = XFRAME (frame); |
d5db4077 | 1555 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1556 | } |
660ed669 | 1557 | |
fffc2367 | 1558 | |
da47150d | 1559 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1560 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1561 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1562 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1563 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1564 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 MB |
1565 | COLOR must be a valid color name. */) |
1566 | (color, frame, background_p) | |
82641697 GM |
1567 | Lisp_Object frame, color, background_p; |
1568 | { | |
2d764c78 EZ |
1569 | struct frame *f; |
1570 | ||
b7826503 | 1571 | CHECK_STRING (color); |
6b61353c KH |
1572 | if (NILP (frame)) |
1573 | frame = selected_frame; | |
1574 | else | |
1575 | CHECK_FRAME (frame); | |
2d764c78 | 1576 | f = XFRAME (frame); |
d5db4077 | 1577 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1578 | return Qt; |
1579 | return Qnil; | |
1580 | } | |
7b37f67b | 1581 | |
08dc08dc | 1582 | |
82641697 GM |
1583 | /* Load color with name NAME for use by face FACE on frame F. |
1584 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1585 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1586 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1587 | pixel color. If color cannot be loaded, display a message, and | |
1588 | return the foreground, background or underline color of F, but | |
1589 | record that fact in flags of the face so that we don't try to free | |
1590 | these colors. */ | |
1591 | ||
44747bd0 | 1592 | unsigned long |
82641697 GM |
1593 | load_color (f, face, name, target_index) |
1594 | struct frame *f; | |
1595 | struct face *face; | |
1596 | Lisp_Object name; | |
1597 | enum lface_attribute_index target_index; | |
1598 | { | |
1599 | XColor color; | |
178c5d9c | 1600 | |
82641697 GM |
1601 | xassert (STRINGP (name)); |
1602 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1603 | || target_index == LFACE_BACKGROUND_INDEX | |
1604 | || target_index == LFACE_UNDERLINE_INDEX | |
1605 | || target_index == LFACE_OVERLINE_INDEX | |
1606 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1607 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1608 | |
82641697 GM |
1609 | /* if the color map is full, defined_color will return a best match |
1610 | to the values in an existing cell. */ | |
d5db4077 | 1611 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1612 | { |
2d764c78 | 1613 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1614 | |
82641697 | 1615 | switch (target_index) |
1120eb5e | 1616 | { |
82641697 GM |
1617 | case LFACE_FOREGROUND_INDEX: |
1618 | face->foreground_defaulted_p = 1; | |
1619 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1620 | break; | |
178c5d9c | 1621 | |
82641697 GM |
1622 | case LFACE_BACKGROUND_INDEX: |
1623 | face->background_defaulted_p = 1; | |
1624 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1625 | break; | |
178c5d9c | 1626 | |
82641697 GM |
1627 | case LFACE_UNDERLINE_INDEX: |
1628 | face->underline_defaulted_p = 1; | |
1629 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1630 | break; | |
178c5d9c | 1631 | |
82641697 GM |
1632 | case LFACE_OVERLINE_INDEX: |
1633 | face->overline_color_defaulted_p = 1; | |
1634 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1635 | break; |
178c5d9c | 1636 | |
82641697 GM |
1637 | case LFACE_STRIKE_THROUGH_INDEX: |
1638 | face->strike_through_color_defaulted_p = 1; | |
1639 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1640 | break; | |
178c5d9c | 1641 | |
82641697 GM |
1642 | case LFACE_BOX_INDEX: |
1643 | face->box_color_defaulted_p = 1; | |
1644 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1645 | break; | |
1646 | ||
1647 | default: | |
1648 | abort (); | |
1120eb5e | 1649 | } |
82641697 GM |
1650 | } |
1651 | #if GLYPH_DEBUG | |
1652 | else | |
1653 | ++ncolors_allocated; | |
1654 | #endif | |
178c5d9c | 1655 | |
82641697 GM |
1656 | return color.pixel; |
1657 | } | |
1120eb5e | 1658 | |
08dc08dc | 1659 | |
c3cee013 | 1660 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1661 | |
82641697 GM |
1662 | /* Load colors for face FACE which is used on frame F. Colors are |
1663 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1664 | of ATTRS. If the background color specified is not supported on F, | |
1665 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1666 | ||
1667 | static void | |
1668 | load_face_colors (f, face, attrs) | |
1669 | struct frame *f; | |
1670 | struct face *face; | |
1671 | Lisp_Object *attrs; | |
1672 | { | |
1673 | Lisp_Object fg, bg; | |
1674 | ||
1675 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1676 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1677 | ||
1678 | /* Swap colors if face is inverse-video. */ | |
1679 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1680 | { | |
1681 | Lisp_Object tmp; | |
1682 | tmp = fg; | |
1683 | fg = bg; | |
1684 | bg = tmp; | |
1685 | } | |
1686 | ||
1687 | /* Check for support for foreground, not for background because | |
1688 | face_color_supported_p is smart enough to know that grays are | |
1689 | "supported" as background because we are supposed to use stipple | |
1690 | for them. */ | |
d5db4077 | 1691 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1692 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1693 | { |
1694 | x_destroy_bitmap (f, face->stipple); | |
1695 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1696 | &face->pixmap_w, &face->pixmap_h); | |
1697 | } | |
82641697 | 1698 | |
be8a72f4 | 1699 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1700 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1701 | } |
1702 | ||
660ed669 | 1703 | |
82641697 | 1704 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1705 | |
cb637678 | 1706 | void |
82641697 | 1707 | unload_color (f, pixel) |
cb637678 | 1708 | struct frame *f; |
82641697 | 1709 | unsigned long pixel; |
cb637678 | 1710 | { |
c3cee013 | 1711 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1712 | if (pixel != -1) |
1713 | { | |
1714 | BLOCK_INPUT; | |
1715 | x_free_colors (f, &pixel, 1); | |
1716 | UNBLOCK_INPUT; | |
1717 | } | |
c3cee013 | 1718 | #endif |
82641697 GM |
1719 | } |
1720 | ||
1721 | ||
1722 | /* Free colors allocated for FACE. */ | |
1723 | ||
1724 | static void | |
1725 | free_face_colors (f, face) | |
1726 | struct frame *f; | |
1727 | struct face *face; | |
1728 | { | |
c3cee013 | 1729 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1730 | if (face->colors_copied_bitwise_p) |
1731 | return; | |
1732 | ||
08dc08dc | 1733 | BLOCK_INPUT; |
178c5d9c | 1734 | |
08dc08dc GM |
1735 | if (!face->foreground_defaulted_p) |
1736 | { | |
1737 | x_free_colors (f, &face->foreground, 1); | |
1738 | IF_DEBUG (--ncolors_allocated); | |
1739 | } | |
178c5d9c | 1740 | |
08dc08dc GM |
1741 | if (!face->background_defaulted_p) |
1742 | { | |
1743 | x_free_colors (f, &face->background, 1); | |
1744 | IF_DEBUG (--ncolors_allocated); | |
1745 | } | |
82641697 | 1746 | |
08dc08dc GM |
1747 | if (face->underline_p |
1748 | && !face->underline_defaulted_p) | |
1749 | { | |
1750 | x_free_colors (f, &face->underline_color, 1); | |
1751 | IF_DEBUG (--ncolors_allocated); | |
1752 | } | |
82641697 | 1753 | |
08dc08dc GM |
1754 | if (face->overline_p |
1755 | && !face->overline_color_defaulted_p) | |
1756 | { | |
1757 | x_free_colors (f, &face->overline_color, 1); | |
1758 | IF_DEBUG (--ncolors_allocated); | |
1759 | } | |
82641697 | 1760 | |
08dc08dc GM |
1761 | if (face->strike_through_p |
1762 | && !face->strike_through_color_defaulted_p) | |
1763 | { | |
1764 | x_free_colors (f, &face->strike_through_color, 1); | |
1765 | IF_DEBUG (--ncolors_allocated); | |
1766 | } | |
82641697 | 1767 | |
08dc08dc GM |
1768 | if (face->box != FACE_NO_BOX |
1769 | && !face->box_color_defaulted_p) | |
1770 | { | |
1771 | x_free_colors (f, &face->box_color, 1); | |
1772 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1773 | } |
08dc08dc GM |
1774 | |
1775 | UNBLOCK_INPUT; | |
2d764c78 | 1776 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1777 | } |
08dc08dc | 1778 | |
c3cee013 | 1779 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1780 | |
1781 | ||
1782 | \f | |
1783 | /*********************************************************************** | |
1784 | XLFD Font Names | |
1785 | ***********************************************************************/ | |
1786 | ||
1787 | /* An enumerator for each field of an XLFD font name. */ | |
1788 | ||
1789 | enum xlfd_field | |
1790 | { | |
1791 | XLFD_FOUNDRY, | |
1792 | XLFD_FAMILY, | |
1793 | XLFD_WEIGHT, | |
1794 | XLFD_SLANT, | |
1795 | XLFD_SWIDTH, | |
1796 | XLFD_ADSTYLE, | |
1797 | XLFD_PIXEL_SIZE, | |
1798 | XLFD_POINT_SIZE, | |
1799 | XLFD_RESX, | |
1800 | XLFD_RESY, | |
1801 | XLFD_SPACING, | |
1802 | XLFD_AVGWIDTH, | |
1803 | XLFD_REGISTRY, | |
1804 | XLFD_ENCODING, | |
1805 | XLFD_LAST | |
1806 | }; | |
1807 | ||
178c5d9c | 1808 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1809 | the XLFD specification. */ |
1810 | ||
1811 | enum xlfd_slant | |
1812 | { | |
1813 | XLFD_SLANT_UNKNOWN, | |
1814 | XLFD_SLANT_ROMAN, | |
1815 | XLFD_SLANT_ITALIC, | |
1816 | XLFD_SLANT_OBLIQUE, | |
1817 | XLFD_SLANT_REVERSE_ITALIC, | |
1818 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1819 | XLFD_SLANT_OTHER | |
1820 | }; | |
1821 | ||
1822 | /* Relative font weight according to XLFD documentation. */ | |
1823 | ||
1824 | enum xlfd_weight | |
1825 | { | |
1826 | XLFD_WEIGHT_UNKNOWN, | |
1827 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1828 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1829 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1830 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1831 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1832 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1833 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1834 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1835 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1836 | }; | |
1837 | ||
1838 | /* Relative proportionate width. */ | |
1839 | ||
1840 | enum xlfd_swidth | |
1841 | { | |
1842 | XLFD_SWIDTH_UNKNOWN, | |
1843 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1844 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1845 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1846 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1847 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1848 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1849 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1850 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1851 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1852 | }; | |
1853 | ||
1854 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1855 | names to numeric and symbolic values. */ | |
1856 | ||
1857 | struct table_entry | |
1858 | { | |
1859 | char *name; | |
1860 | int numeric; | |
1861 | Lisp_Object *symbol; | |
1862 | }; | |
1863 | ||
1864 | /* Table of XLFD slant names and their numeric and symbolic | |
1865 | representations. This table must be sorted by slant names in | |
1866 | ascending order. */ | |
1867 | ||
1868 | static struct table_entry slant_table[] = | |
1869 | { | |
1870 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1871 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1872 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1873 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1874 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1875 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1876 | }; | |
1877 | ||
1878 | /* Table of XLFD weight names. This table must be sorted by weight | |
1879 | names in ascending order. */ | |
1880 | ||
1881 | static struct table_entry weight_table[] = | |
1882 | { | |
1883 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1884 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1885 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1886 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1887 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1888 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1889 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1890 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1891 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1892 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1893 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1894 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1895 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1896 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1897 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1898 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1899 | }; | |
1900 | ||
1901 | /* Table of XLFD width names. This table must be sorted by width | |
1902 | names in ascending order. */ | |
1903 | ||
1904 | static struct table_entry swidth_table[] = | |
1905 | { | |
1906 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1907 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1908 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1909 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1910 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1911 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1912 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1913 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1914 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1915 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1916 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1917 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1918 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1919 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1920 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1921 | }; | |
1922 | ||
1923 | /* Structure used to hold the result of splitting font names in XLFD | |
1924 | format into their fields. */ | |
1925 | ||
1926 | struct font_name | |
1927 | { | |
1928 | /* The original name which is modified destructively by | |
1929 | split_font_name. The pointer is kept here to be able to free it | |
1930 | if it was allocated from the heap. */ | |
1931 | char *name; | |
1932 | ||
1933 | /* Font name fields. Each vector element points into `name' above. | |
1934 | Fields are NUL-terminated. */ | |
1935 | char *fields[XLFD_LAST]; | |
1936 | ||
1937 | /* Numeric values for those fields that interest us. See | |
1938 | split_font_name for which these are. */ | |
1939 | int numeric[XLFD_LAST]; | |
8e1b21a7 | 1940 | |
f70400f2 KH |
1941 | /* If the original name matches one of Vface_font_rescale_alist, |
1942 | the value is the corresponding rescale ratio. Otherwise, the | |
1943 | value is 1.0. */ | |
1944 | double rescale_ratio; | |
1945 | ||
8e1b21a7 KH |
1946 | /* Lower value mean higher priority. */ |
1947 | int registry_priority; | |
82641697 GM |
1948 | }; |
1949 | ||
1950 | /* The frame in effect when sorting font names. Set temporarily in | |
1951 | sort_fonts so that it is available in font comparison functions. */ | |
1952 | ||
1953 | static struct frame *font_frame; | |
1954 | ||
1955 | /* Order by which font selection chooses fonts. The default values | |
1956 | mean `first, find a best match for the font width, then for the | |
1957 | font height, then for weight, then for slant.' This variable can be | |
1958 | set via set-face-font-sort-order. */ | |
1959 | ||
e0f712ba | 1960 | #ifdef MAC_OS |
a08332c0 GM |
1961 | static int font_sort_order[4] = { |
1962 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1963 | }; | |
1a578e9b | 1964 | #else |
82641697 | 1965 | static int font_sort_order[4]; |
1a578e9b | 1966 | #endif |
82641697 GM |
1967 | |
1968 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1969 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1970 | is a pointer to the matching table entry or null if no table entry | |
1971 | matches. */ | |
1972 | ||
1973 | static struct table_entry * | |
1974 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1975 | struct table_entry *table; | |
1976 | int dim; | |
1977 | struct font_name *font; | |
1978 | int field_index; | |
1979 | { | |
1980 | /* Function split_font_name converts fields to lower-case, so there | |
1981 | is no need to use xstrlwr or xstricmp here. */ | |
1982 | char *s = font->fields[field_index]; | |
1983 | int low, mid, high, cmp; | |
1984 | ||
1985 | low = 0; | |
1986 | high = dim - 1; | |
1987 | ||
1988 | while (low <= high) | |
1989 | { | |
1990 | mid = (low + high) / 2; | |
1991 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1992 | |
82641697 GM |
1993 | if (cmp < 0) |
1994 | low = mid + 1; | |
1995 | else if (cmp > 0) | |
1996 | high = mid - 1; | |
1997 | else | |
1998 | return table + mid; | |
1999 | } | |
2000 | ||
2001 | return NULL; | |
2002 | } | |
2003 | ||
2004 | ||
2005 | /* Return a numeric representation for font name field | |
2006 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2007 | has DIM entries. Value is the numeric value found or DFLT if no | |
2008 | table entry matches. This function is used to translate weight, | |
2009 | slant, and swidth names of XLFD font names to numeric values. */ | |
2010 | ||
2011 | static INLINE int | |
2012 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2013 | struct table_entry *table; | |
2014 | int dim; | |
2015 | struct font_name *font; | |
2016 | int field_index; | |
2017 | int dflt; | |
2018 | { | |
2019 | struct table_entry *p; | |
2020 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2021 | return p ? p->numeric : dflt; | |
2022 | } | |
2023 | ||
2024 | ||
2025 | /* Return a symbolic representation for font name field | |
2026 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2027 | has DIM entries. Value is the symbolic value found or DFLT if no | |
2028 | table entry matches. This function is used to translate weight, | |
2029 | slant, and swidth names of XLFD font names to symbols. */ | |
2030 | ||
2031 | static INLINE Lisp_Object | |
2032 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2033 | struct table_entry *table; | |
2034 | int dim; | |
2035 | struct font_name *font; | |
2036 | int field_index; | |
6fc556fd | 2037 | Lisp_Object dflt; |
82641697 GM |
2038 | { |
2039 | struct table_entry *p; | |
2040 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2041 | return p ? *p->symbol : dflt; | |
2042 | } | |
2043 | ||
2044 | ||
2045 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2046 | ||
2047 | static INLINE int | |
2048 | xlfd_numeric_slant (font) | |
2049 | struct font_name *font; | |
2050 | { | |
2051 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2052 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2053 | } | |
2054 | ||
2055 | ||
2056 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2057 | ||
2058 | static INLINE Lisp_Object | |
2059 | xlfd_symbolic_slant (font) | |
2060 | struct font_name *font; | |
2061 | { | |
2062 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2063 | font, XLFD_SLANT, Qnormal); | |
2064 | } | |
2065 | ||
2066 | ||
2067 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2068 | ||
2069 | static INLINE int | |
2070 | xlfd_numeric_weight (font) | |
2071 | struct font_name *font; | |
2072 | { | |
2073 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2074 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2075 | } | |
2076 | ||
2077 | ||
2078 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2079 | ||
2080 | static INLINE Lisp_Object | |
2081 | xlfd_symbolic_weight (font) | |
2082 | struct font_name *font; | |
2083 | { | |
2084 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2085 | font, XLFD_WEIGHT, Qnormal); | |
2086 | } | |
2087 | ||
2088 | ||
2089 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2090 | name fields are found in FONT. */ | |
2091 | ||
2092 | static INLINE int | |
2093 | xlfd_numeric_swidth (font) | |
2094 | struct font_name *font; | |
2095 | { | |
2096 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2097 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2098 | } | |
2099 | ||
2100 | ||
2101 | /* Return a symbolic value for the swidth of FONT. */ | |
2102 | ||
2103 | static INLINE Lisp_Object | |
2104 | xlfd_symbolic_swidth (font) | |
2105 | struct font_name *font; | |
2106 | { | |
2107 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2108 | font, XLFD_SWIDTH, Qnormal); | |
2109 | } | |
178c5d9c | 2110 | |
82641697 GM |
2111 | |
2112 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2113 | entries. Value is a pointer to the matching table entry or null if | |
2114 | no element of TABLE contains SYMBOL. */ | |
2115 | ||
2116 | static struct table_entry * | |
2117 | face_value (table, dim, symbol) | |
2118 | struct table_entry *table; | |
2119 | int dim; | |
2120 | Lisp_Object symbol; | |
2121 | { | |
2122 | int i; | |
2123 | ||
2124 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2125 | |
82641697 GM |
2126 | for (i = 0; i < dim; ++i) |
2127 | if (EQ (*table[i].symbol, symbol)) | |
2128 | break; | |
2129 | ||
2130 | return i < dim ? table + i : NULL; | |
2131 | } | |
2132 | ||
2133 | ||
2134 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2135 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2136 | ||
2137 | static INLINE int | |
2138 | face_numeric_value (table, dim, symbol) | |
2139 | struct table_entry *table; | |
3062711f | 2140 | size_t dim; |
82641697 GM |
2141 | Lisp_Object symbol; |
2142 | { | |
2143 | struct table_entry *p = face_value (table, dim, symbol); | |
2144 | return p ? p->numeric : -1; | |
2145 | } | |
2146 | ||
2147 | ||
2148 | /* Return a numeric value representing the weight specified by Lisp | |
2149 | symbol WEIGHT. Value is one of the enumerators of enum | |
2150 | xlfd_weight. */ | |
2151 | ||
2152 | static INLINE int | |
2153 | face_numeric_weight (weight) | |
2154 | Lisp_Object weight; | |
2155 | { | |
2156 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2157 | } | |
2158 | ||
2159 | ||
2160 | /* Return a numeric value representing the slant specified by Lisp | |
2161 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2162 | ||
2163 | static INLINE int | |
2164 | face_numeric_slant (slant) | |
2165 | Lisp_Object slant; | |
2166 | { | |
2167 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2168 | } | |
2169 | ||
2170 | ||
2171 | /* Return a numeric value representing the swidth specified by Lisp | |
2172 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2173 | ||
2174 | static int | |
2175 | face_numeric_swidth (width) | |
2176 | Lisp_Object width; | |
2177 | { | |
2178 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2179 | } | |
2180 | ||
8c6204de KH |
2181 | #ifdef HAVE_WINDOW_SYSTEM |
2182 | ||
426b2119 KH |
2183 | #ifdef USE_FONT_BACKEND |
2184 | static INLINE Lisp_Object | |
2185 | face_symbolic_value (table, dim, font_prop) | |
2186 | struct table_entry *table; | |
2187 | int dim; | |
2188 | Lisp_Object font_prop; | |
2189 | { | |
2190 | struct table_entry *p; | |
2191 | char *s = SDATA (SYMBOL_NAME (font_prop)); | |
2192 | int low, mid, high, cmp; | |
2193 | ||
2194 | low = 0; | |
2195 | high = dim - 1; | |
2196 | ||
2197 | while (low <= high) | |
2198 | { | |
2199 | mid = (low + high) / 2; | |
2200 | cmp = strcmp (table[mid].name, s); | |
2201 | ||
2202 | if (cmp < 0) | |
2203 | low = mid + 1; | |
2204 | else if (cmp > 0) | |
2205 | high = mid - 1; | |
2206 | else | |
2207 | return *table[mid].symbol; | |
2208 | } | |
2209 | ||
2210 | return Qnil; | |
2211 | } | |
2212 | ||
2213 | static INLINE Lisp_Object | |
2214 | face_symbolic_weight (weight) | |
2215 | Lisp_Object weight; | |
2216 | { | |
2217 | return face_symbolic_value (weight_table, DIM (weight_table), weight); | |
2218 | } | |
2219 | ||
2220 | static INLINE Lisp_Object | |
2221 | face_symbolic_slant (slant) | |
2222 | Lisp_Object slant; | |
2223 | { | |
2224 | return face_symbolic_value (slant_table, DIM (slant_table), slant); | |
2225 | } | |
2226 | ||
2227 | static INLINE Lisp_Object | |
2228 | face_symbolic_swidth (width) | |
2229 | Lisp_Object width; | |
2230 | { | |
2231 | return face_symbolic_value (swidth_table, DIM (swidth_table), width); | |
2232 | } | |
2233 | #endif /* USE_FONT_BACKEND */ | |
2234 | ||
81b39386 | 2235 | Lisp_Object |
154c2d39 KH |
2236 | split_font_name_into_vector (fontname) |
2237 | Lisp_Object fontname; | |
81b39386 KH |
2238 | { |
2239 | struct font_name font; | |
154c2d39 KH |
2240 | Lisp_Object vec; |
2241 | int i; | |
81b39386 | 2242 | |
154c2d39 | 2243 | font.name = LSTRDUPA (fontname); |
81b39386 KH |
2244 | if (! split_font_name (NULL, &font, 0)) |
2245 | return Qnil; | |
154c2d39 KH |
2246 | vec = Fmake_vector (make_number (XLFD_LAST), Qnil); |
2247 | for (i = 0; i < XLFD_LAST; i++) | |
2248 | if (font.fields[i][0] != '*') | |
2249 | ASET (vec, i, build_string (font.fields[i])); | |
2250 | return vec; | |
2251 | } | |
81b39386 | 2252 | |
154c2d39 KH |
2253 | Lisp_Object |
2254 | build_font_name_from_vector (vec) | |
2255 | Lisp_Object vec; | |
2256 | { | |
2257 | struct font_name font; | |
2258 | Lisp_Object fontname; | |
2259 | char *p; | |
2260 | int i; | |
2261 | ||
2262 | for (i = 0; i < XLFD_LAST; i++) | |
81b39386 | 2263 | { |
154c2d39 | 2264 | font.fields[i] = (NILP (AREF (vec, i)) |
8f924df7 | 2265 | ? "*" : (char *) SDATA (AREF (vec, i))); |
154c2d39 KH |
2266 | if ((i == XLFD_FAMILY || i == XLFD_REGISTRY) |
2267 | && (p = strchr (font.fields[i], '-'))) | |
81b39386 | 2268 | { |
154c2d39 KH |
2269 | char *p1 = STRDUPA (font.fields[i]); |
2270 | ||
2271 | p1[p - font.fields[i]] = '\0'; | |
2272 | if (i == XLFD_FAMILY) | |
2273 | { | |
2274 | font.fields[XLFD_FOUNDRY] = p1; | |
2275 | font.fields[XLFD_FAMILY] = p + 1; | |
2276 | } | |
2277 | else | |
2278 | { | |
2279 | font.fields[XLFD_REGISTRY] = p1; | |
2280 | font.fields[XLFD_ENCODING] = p + 1; | |
2281 | break; | |
2282 | } | |
81b39386 KH |
2283 | } |
2284 | } | |
81b39386 KH |
2285 | |
2286 | p = build_font_name (&font); | |
154c2d39 | 2287 | fontname = build_string (p); |
81b39386 | 2288 | xfree (p); |
154c2d39 | 2289 | return fontname; |
af53b43c | 2290 | } |
82641697 | 2291 | |
82641697 GM |
2292 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ |
2293 | ||
2294 | static INLINE int | |
2295 | xlfd_fixed_p (font) | |
2296 | struct font_name *font; | |
2297 | { | |
2298 | /* Function split_font_name converts fields to lower-case, so there | |
2299 | is no need to use tolower here. */ | |
2300 | return *font->fields[XLFD_SPACING] != 'p'; | |
2301 | } | |
2302 | ||
2303 | ||
2304 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2305 | ||
2306 | The actual height of the font when displayed on F depends on the | |
2307 | resolution of both the font and frame. For example, a 10pt font | |
2308 | designed for a 100dpi display will display larger than 10pt on a | |
2309 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2310 | display one is using. For example, some intlfonts are available in | |
2311 | 72dpi versions, only.) | |
2312 | ||
2313 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
4ab1b919 KH |
2314 | be determined. |
2315 | ||
2316 | By side effect, set FONT->numeric[XLFD_PIXEL_SIZE]. */ | |
82641697 GM |
2317 | |
2318 | static INLINE int | |
2319 | xlfd_point_size (f, font) | |
2320 | struct frame *f; | |
2321 | struct font_name *font; | |
2322 | { | |
2323 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2324 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2325 | double pixel; | |
82641697 GM |
2326 | int real_pt; |
2327 | ||
933b0249 GM |
2328 | if (*pixel_field == '[') |
2329 | { | |
2330 | /* The pixel size field is `[A B C D]' which specifies | |
2331 | a transformation matrix. | |
2332 | ||
2333 | A B 0 | |
2334 | C D 0 | |
2335 | 0 0 1 | |
2336 | ||
2337 | by which all glyphs of the font are transformed. The spec | |
2338 | says that s scalar value N for the pixel size is equivalent | |
2339 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2340 | char *start = pixel_field + 1, *end; | |
2341 | double matrix[4]; | |
2342 | int i; | |
2343 | ||
2344 | for (i = 0; i < 4; ++i) | |
2345 | { | |
2346 | matrix[i] = strtod (start, &end); | |
2347 | start = end; | |
2348 | } | |
2349 | ||
7eb4b061 | 2350 | pixel = matrix[3]; |
933b0249 GM |
2351 | } |
2352 | else | |
2353 | pixel = atoi (pixel_field); | |
177c0ea7 | 2354 | |
4ab1b919 | 2355 | font->numeric[XLFD_PIXEL_SIZE] = pixel; |
933b0249 | 2356 | if (pixel == 0) |
82641697 GM |
2357 | real_pt = 0; |
2358 | else | |
933b0249 | 2359 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2360 | |
2361 | return real_pt; | |
2362 | } | |
2363 | ||
2364 | ||
39506348 KH |
2365 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2366 | of frame F. This function is used to guess a point size of font | |
2367 | when only the pixel height of the font is available. */ | |
2368 | ||
2369 | static INLINE int | |
2370 | pixel_point_size (f, pixel) | |
2371 | struct frame *f; | |
2372 | int pixel; | |
2373 | { | |
2374 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2375 | double real_pt; | |
2376 | int int_pt; | |
2377 | ||
c660ce4e GM |
2378 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2379 | point size of one dot. */ | |
2380 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2381 | int_pt = real_pt + 0.5; |
2382 | ||
2383 | return int_pt; | |
2384 | } | |
2385 | ||
2386 | ||
f70400f2 KH |
2387 | /* Return a rescaling ratio of a font of NAME. */ |
2388 | ||
2389 | static double | |
f0d62075 DL |
2390 | font_rescale_ratio (name) |
2391 | char *name; | |
f70400f2 | 2392 | { |
8f924df7 | 2393 | Lisp_Object tail, elt; |
f70400f2 KH |
2394 | |
2395 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2396 | { | |
2397 | elt = XCAR (tail); | |
2398 | if (STRINGP (XCAR (elt)) && FLOATP (XCDR (elt)) | |
2399 | && fast_c_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2400 | return XFLOAT_DATA (XCDR (elt)); | |
2401 | } | |
2402 | return 1.0; | |
2403 | } | |
2404 | ||
2405 | ||
82641697 GM |
2406 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2407 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2408 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2409 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2410 | zero if the font name doesn't have the format we expect. The | |
2411 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2412 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2413 | |
2414 | static int | |
2415 | split_font_name (f, font, numeric_p) | |
2416 | struct frame *f; | |
2417 | struct font_name *font; | |
2418 | int numeric_p; | |
2419 | { | |
2420 | int i = 0; | |
2421 | int success_p; | |
f70400f2 KH |
2422 | double rescale_ratio; |
2423 | ||
2424 | if (numeric_p) | |
2425 | /* This must be done before splitting the font name. */ | |
2426 | rescale_ratio = font_rescale_ratio (font->name); | |
82641697 GM |
2427 | |
2428 | if (*font->name == '-') | |
2429 | { | |
2430 | char *p = xstrlwr (font->name) + 1; | |
2431 | ||
7b16a6bf | 2432 | while (i < XLFD_LAST) |
82641697 GM |
2433 | { |
2434 | font->fields[i] = p; | |
7b16a6bf | 2435 | ++i; |
933b0249 GM |
2436 | |
2437 | /* Pixel and point size may be of the form `[....]'. For | |
2438 | BNF, see XLFD spec, chapter 4. Negative values are | |
2439 | indicated by tilde characters which we replace with | |
2440 | `-' characters, here. */ | |
2441 | if (*p == '[' | |
d5188d8c GM |
2442 | && (i - 1 == XLFD_PIXEL_SIZE |
2443 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2444 | { |
2445 | char *start, *end; | |
2446 | int j; | |
177c0ea7 | 2447 | |
933b0249 GM |
2448 | for (++p; *p && *p != ']'; ++p) |
2449 | if (*p == '~') | |
2450 | *p = '-'; | |
2451 | ||
2452 | /* Check that the matrix contains 4 floating point | |
2453 | numbers. */ | |
3849cbf4 | 2454 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2455 | j < 4; |
2456 | ++j, start = end) | |
2457 | if (strtod (start, &end) == 0 && start == end) | |
2458 | break; | |
2459 | ||
2460 | if (j < 4) | |
2461 | break; | |
2462 | } | |
178c5d9c | 2463 | |
82641697 GM |
2464 | while (*p && *p != '-') |
2465 | ++p; | |
178c5d9c | 2466 | |
82641697 GM |
2467 | if (*p != '-') |
2468 | break; | |
178c5d9c | 2469 | |
82641697 GM |
2470 | *p++ = 0; |
2471 | } | |
2472 | } | |
2473 | ||
2474 | success_p = i == XLFD_LAST; | |
2475 | ||
2476 | /* If requested, and font name was in the expected format, | |
2477 | compute numeric values for some fields. */ | |
2478 | if (numeric_p && success_p) | |
2479 | { | |
2480 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2481 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2482 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2483 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2484 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2485 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
f70400f2 | 2486 | font->rescale_ratio = rescale_ratio; |
82641697 GM |
2487 | } |
2488 | ||
8e1b21a7 KH |
2489 | /* Initialize it to zero. It will be overridden by font_list while |
2490 | trying alternate registries. */ | |
2491 | font->registry_priority = 0; | |
2492 | ||
82641697 GM |
2493 | return success_p; |
2494 | } | |
2495 | ||
2496 | ||
2497 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2498 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2499 | |
82641697 GM |
2500 | static char * |
2501 | build_font_name (font) | |
2502 | struct font_name *font; | |
2503 | { | |
2504 | int i; | |
2505 | int size = 100; | |
2506 | char *font_name = (char *) xmalloc (size); | |
2507 | int total_length = 0; | |
2508 | ||
2509 | for (i = 0; i < XLFD_LAST; ++i) | |
2510 | { | |
2511 | /* Add 1 because of the leading `-'. */ | |
2512 | int len = strlen (font->fields[i]) + 1; | |
2513 | ||
2514 | /* Reallocate font_name if necessary. Add 1 for the final | |
2515 | NUL-byte. */ | |
2516 | if (total_length + len + 1 >= size) | |
2517 | { | |
2518 | int new_size = max (2 * size, size + len + 1); | |
2519 | int sz = new_size * sizeof *font_name; | |
2520 | font_name = (char *) xrealloc (font_name, sz); | |
2521 | size = new_size; | |
2522 | } | |
2523 | ||
2524 | font_name[total_length] = '-'; | |
2525 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2526 | total_length += len; | |
2527 | } | |
2528 | ||
2529 | font_name[total_length] = 0; | |
2530 | return font_name; | |
2531 | } | |
2532 | ||
2533 | ||
2534 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2535 | itself and all `name' fields in its elements. */ | |
2536 | ||
2537 | static INLINE void | |
2538 | free_font_names (fonts, n) | |
2539 | struct font_name *fonts; | |
2540 | int n; | |
2541 | { | |
2542 | while (n) | |
2543 | xfree (fonts[--n].name); | |
2544 | xfree (fonts); | |
2545 | } | |
2546 | ||
2547 | ||
2548 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2549 | elements using qsort and comparison function CMPFN. F is the frame | |
2550 | on which the fonts will be used. The global variable font_frame | |
2551 | is temporarily set to F to make it available in CMPFN. */ | |
2552 | ||
2553 | static INLINE void | |
2554 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2555 | struct frame *f; | |
2556 | struct font_name *fonts; | |
2557 | int nfonts; | |
2558 | int (*cmpfn) P_ ((const void *, const void *)); | |
2559 | { | |
2560 | font_frame = f; | |
2561 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2562 | font_frame = NULL; | |
2563 | } | |
2564 | ||
2565 | ||
2566 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2567 | display in x_display_list. FONTS is a pointer to a vector of | |
2568 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2569 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2570 | found matching PATTERN. |
82641697 GM |
2571 | |
2572 | For all fonts found, set FONTS[i].name to the name of the font, | |
2573 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2574 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2575 | |
2576 | static int | |
ee5be7c3 | 2577 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2578 | struct frame *f; |
2579 | char *pattern; | |
ee5be7c3 | 2580 | struct font_name **pfonts; |
82641697 | 2581 | int nfonts, try_alternatives_p; |
82641697 | 2582 | { |
702a1e8e | 2583 | int n, nignored; |
82641697 | 2584 | |
c3cee013 JR |
2585 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2586 | better to do it the other way around. */ | |
2587 | Lisp_Object lfonts; | |
2588 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2589 | struct font_name *fonts = 0; |
2590 | int num_fonts = nfonts; | |
c3cee013 | 2591 | |
ee5be7c3 | 2592 | *pfonts = 0; |
c3cee013 JR |
2593 | lpattern = build_string (pattern); |
2594 | ||
2595 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2596 | #ifdef WINDOWSNT |
a86110a8 | 2597 | BLOCK_INPUT; |
c3cee013 | 2598 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2599 | UNBLOCK_INPUT; |
d26d6fd9 | 2600 | #else |
702a1e8e | 2601 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2602 | #endif |
c3cee013 | 2603 | |
ee5be7c3 | 2604 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2605 | num_fonts = XFASTINT (Flength (lfonts)); |
8f924df7 | 2606 | |
d26d6fd9 GM |
2607 | /* Make a copy of the font names we got from X, and |
2608 | split them into fields. */ | |
702a1e8e | 2609 | n = nignored = 0; |
ee5be7c3 | 2610 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2611 | { |
d26d6fd9 | 2612 | Lisp_Object elt, tail; |
53c208f6 | 2613 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2614 | |
702a1e8e | 2615 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2616 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2617 | { |
d26d6fd9 GM |
2618 | elt = XCAR (tail); |
2619 | if (STRINGP (elt) | |
2620 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2621 | break; | |
2622 | } | |
2623 | if (!NILP (tail)) | |
702a1e8e GM |
2624 | { |
2625 | ++nignored; | |
2626 | continue; | |
2627 | } | |
c824bfbc | 2628 | |
ee5be7c3 JD |
2629 | if (! fonts) |
2630 | { | |
2631 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2632 | fonts = *pfonts; | |
2633 | } | |
2634 | ||
d26d6fd9 GM |
2635 | /* Make a copy of the font name. */ |
2636 | fonts[n].name = xstrdup (name); | |
82641697 | 2637 | |
702a1e8e | 2638 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2639 | { |
702a1e8e GM |
2640 | if (font_scalable_p (fonts + n) |
2641 | && !may_use_scalable_font_p (name)) | |
2642 | { | |
2643 | ++nignored; | |
2644 | xfree (fonts[n].name); | |
2645 | } | |
82641697 | 2646 | else |
d26d6fd9 | 2647 | ++n; |
82641697 | 2648 | } |
d26d6fd9 | 2649 | else |
702a1e8e GM |
2650 | xfree (fonts[n].name); |
2651 | } | |
2652 | ||
82641697 GM |
2653 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2654 | if (n == 0 && try_alternatives_p) | |
2655 | { | |
2656 | Lisp_Object list = Valternate_fontname_alist; | |
2657 | ||
72ecb43c JD |
2658 | if (*pfonts) |
2659 | { | |
2660 | xfree (*pfonts); | |
2661 | *pfonts = 0; | |
2662 | } | |
2663 | ||
82641697 GM |
2664 | while (CONSP (list)) |
2665 | { | |
2666 | Lisp_Object entry = XCAR (list); | |
2667 | if (CONSP (entry) | |
2668 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2669 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2670 | break; |
2671 | list = XCDR (list); | |
2672 | } | |
2673 | ||
2674 | if (CONSP (list)) | |
2675 | { | |
2676 | Lisp_Object patterns = XCAR (list); | |
2677 | Lisp_Object name; | |
178c5d9c | 2678 | |
82641697 GM |
2679 | while (CONSP (patterns) |
2680 | /* If list is screwed up, give up. */ | |
2681 | && (name = XCAR (patterns), | |
2682 | STRINGP (name)) | |
2683 | /* Ignore patterns equal to PATTERN because we tried that | |
2684 | already with no success. */ | |
d5db4077 KR |
2685 | && (strcmp (SDATA (name), pattern) == 0 |
2686 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2687 | pfonts, nfonts, 0), |
82641697 GM |
2688 | n == 0))) |
2689 | patterns = XCDR (patterns); | |
2690 | } | |
2691 | } | |
178c5d9c | 2692 | |
82641697 GM |
2693 | return n; |
2694 | } | |
178c5d9c | 2695 | |
82641697 | 2696 | |
6b61353c KH |
2697 | /* Check if a font matching pattern_offset_t on frame F is available |
2698 | or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case, | |
2699 | a font name pattern is generated from FAMILY and REGISTRY. */ | |
2700 | ||
2701 | int | |
2702 | face_font_available_p (f, pattern) | |
2703 | struct frame *f; | |
2704 | Lisp_Object pattern; | |
2705 | { | |
2706 | Lisp_Object fonts; | |
2707 | ||
2708 | if (! STRINGP (pattern)) | |
2709 | { | |
2710 | Lisp_Object family, registry; | |
2711 | char *family_str, *registry_str, *pattern_str; | |
2712 | ||
2713 | CHECK_CONS (pattern); | |
2714 | family = XCAR (pattern); | |
2715 | if (NILP (family)) | |
2716 | family_str = "*"; | |
2717 | else | |
2718 | { | |
2719 | CHECK_STRING (family); | |
2720 | family_str = (char *) SDATA (family); | |
2721 | } | |
2722 | registry = XCDR (pattern); | |
2723 | if (NILP (registry)) | |
2724 | registry_str = "*"; | |
2725 | else | |
2726 | { | |
2727 | CHECK_STRING (registry); | |
2728 | registry_str = (char *) SDATA (registry); | |
2729 | } | |
2730 | ||
2731 | pattern_str = (char *) alloca (strlen (family_str) | |
2732 | + strlen (registry_str) | |
2733 | + 10); | |
2734 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2735 | strcat (pattern_str, family_str); | |
2736 | strcat (pattern_str, "-*-"); | |
2737 | strcat (pattern_str, registry_str); | |
2738 | if (!index (registry_str, '-')) | |
2739 | { | |
2740 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2741 | strcat (pattern_str, "-*"); | |
2742 | else | |
2743 | strcat (pattern_str, "*-*"); | |
2744 | } | |
2745 | pattern = build_string (pattern_str); | |
2746 | } | |
2747 | ||
2748 | /* Get the list of fonts matching PATTERN. */ | |
2749 | #ifdef WINDOWSNT | |
2750 | BLOCK_INPUT; | |
2751 | fonts = w32_list_fonts (f, pattern, 0, 1); | |
2752 | UNBLOCK_INPUT; | |
2753 | #else | |
2754 | fonts = x_list_fonts (f, pattern, -1, 1); | |
2755 | #endif | |
2756 | return XINT (Flength (fonts)); | |
2757 | } | |
2758 | ||
2759 | ||
82641697 GM |
2760 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2761 | using comparison function CMPFN. Value is the number of fonts | |
2762 | found. If value is non-zero, *FONTS is set to a vector of | |
2763 | font_name structures allocated from the heap containing matching | |
2764 | fonts. Each element of *FONTS contains a name member that is also | |
2765 | allocated from the heap. Font names in these structures are split | |
2766 | into fields. Use free_font_names to free such an array. */ | |
2767 | ||
2768 | static int | |
2769 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2770 | struct frame *f; | |
2771 | char *pattern; | |
2772 | int (*cmpfn) P_ ((const void *, const void *)); | |
2773 | struct font_name **fonts; | |
2774 | { | |
2775 | int nfonts; | |
178c5d9c | 2776 | |
82641697 | 2777 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2778 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2779 | if (INTEGERP (Vfont_list_limit)) |
2780 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2781 | |
ee5be7c3 JD |
2782 | *fonts = NULL; |
2783 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2784 | |
2785 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2786 | fonts were found, make sure to set *FONTS to null. */ |
2787 | if (nfonts) | |
2788 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2789 | else if (*fonts) |
82641697 GM |
2790 | { |
2791 | xfree (*fonts); | |
2792 | *fonts = NULL; | |
2793 | } | |
2794 | ||
2795 | return nfonts; | |
2796 | } | |
2797 | ||
2798 | ||
2799 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2800 | strcmp. Sort order is given by the global variable | |
2801 | font_sort_order. Font names are sorted so that, everything else | |
2802 | being equal, fonts with a resolution closer to that of the frame on | |
2803 | which they are used are listed first. The global variable | |
2804 | font_frame is the frame on which we operate. */ | |
2805 | ||
2806 | static int | |
2807 | cmp_font_names (a, b) | |
2808 | const void *a, *b; | |
2809 | { | |
2810 | struct font_name *x = (struct font_name *) a; | |
2811 | struct font_name *y = (struct font_name *) b; | |
2812 | int cmp; | |
2813 | ||
2814 | /* All strings have been converted to lower-case by split_font_name, | |
2815 | so we can use strcmp here. */ | |
2816 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2817 | if (cmp == 0) | |
2818 | { | |
2819 | int i; | |
178c5d9c | 2820 | |
82641697 GM |
2821 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2822 | { | |
2823 | int j = font_sort_order[i]; | |
2824 | cmp = x->numeric[j] - y->numeric[j]; | |
2825 | } | |
2826 | ||
2827 | if (cmp == 0) | |
2828 | { | |
2829 | /* Everything else being equal, we prefer fonts with an | |
2830 | y-resolution closer to that of the frame. */ | |
2831 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2832 | int x_resy = x->numeric[XLFD_RESY]; | |
2833 | int y_resy = y->numeric[XLFD_RESY]; | |
1ea40aa2 | 2834 | cmp = eabs (resy - x_resy) - eabs (resy - y_resy); |
82641697 GM |
2835 | } |
2836 | } | |
2837 | ||
2838 | return cmp; | |
2839 | } | |
2840 | ||
2841 | ||
8f924df7 KH |
2842 | /* Get a sorted list of fonts matching PATTERN on frame F. If PATTERN |
2843 | is nil, list fonts matching FAMILY and REGISTRY. FAMILY is a | |
2844 | family name string or nil. REGISTRY is a registry name string. | |
2845 | Set *FONTS to a vector of font_name structures allocated from the | |
2846 | heap containing the fonts found. Value is the number of fonts | |
2847 | found. */ | |
82641697 GM |
2848 | |
2849 | static int | |
32fcc231 | 2850 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2851 | struct frame *f; |
39506348 | 2852 | Lisp_Object pattern, family, registry; |
82641697 GM |
2853 | struct font_name **fonts; |
2854 | { | |
39506348 KH |
2855 | char *pattern_str, *family_str, *registry_str; |
2856 | ||
2857 | if (NILP (pattern)) | |
82641697 | 2858 | { |
d5db4077 KR |
2859 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2860 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2861 | |
39506348 | 2862 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2863 | + strlen (registry_str) |
2864 | + 10); | |
2865 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2866 | strcat (pattern_str, family_str); | |
2867 | strcat (pattern_str, "-*-"); | |
2868 | strcat (pattern_str, registry_str); | |
2869 | if (!index (registry_str, '-')) | |
2870 | { | |
2871 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2872 | strcat (pattern_str, "-*"); | |
2873 | else | |
2874 | strcat (pattern_str, "*-*"); | |
2875 | } | |
82641697 | 2876 | } |
39506348 | 2877 | else |
d5db4077 | 2878 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2879 | |
39506348 | 2880 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2881 | } |
2882 | ||
2883 | ||
8e1b21a7 KH |
2884 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2885 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2886 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2887 | freed. */ | |
2888 | ||
2889 | static struct font_name * | |
2890 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2891 | struct font_name *fonts1, *fonts2; | |
2892 | int nfonts1, nfonts2; | |
2893 | { | |
2894 | int new_nfonts = nfonts1 + nfonts2; | |
2895 | struct font_name *new_fonts; | |
2896 | ||
2897 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2898 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2899 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2900 | xfree (fonts1); | |
2901 | xfree (fonts2); | |
2902 | return new_fonts; | |
2903 | } | |
2904 | ||
2905 | ||
32fcc231 GM |
2906 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2907 | ||
af53b43c | 2908 | If PATTERN is non-nil, list fonts matching that pattern. |
32fcc231 | 2909 | |
154c2d39 KH |
2910 | If REGISTRY is non-nil, it is a list of registry (and encoding) |
2911 | names. Return fonts with those registries and the alternative | |
2912 | registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2913 | |
32fcc231 GM |
2914 | If REGISTRY is nil return fonts of any registry. |
2915 | ||
2916 | Set *FONTS to a vector of font_name structures allocated from the | |
2917 | heap containing the fonts found. Value is the number of fonts | |
2918 | found. */ | |
2919 | ||
2920 | static int | |
2921 | font_list (f, pattern, family, registry, fonts) | |
2922 | struct frame *f; | |
2923 | Lisp_Object pattern, family, registry; | |
2924 | struct font_name **fonts; | |
2925 | { | |
154c2d39 KH |
2926 | int nfonts; |
2927 | int reg_prio; | |
2928 | int i; | |
2929 | ||
2930 | if (NILP (registry)) | |
2931 | return font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2932 | |
154c2d39 | 2933 | for (reg_prio = 0, nfonts = 0; CONSP (registry); registry = XCDR (registry)) |
32fcc231 | 2934 | { |
154c2d39 KH |
2935 | Lisp_Object elt, alter; |
2936 | int nfonts2; | |
2937 | struct font_name *fonts2; | |
32fcc231 | 2938 | |
154c2d39 KH |
2939 | elt = XCAR (registry); |
2940 | alter = Fassoc (elt, Vface_alternative_font_registry_alist); | |
2941 | if (NILP (alter)) | |
2942 | alter = Fcons (elt, Qnil); | |
2943 | for (; CONSP (alter); alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2944 | { |
154c2d39 KH |
2945 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), &fonts2); |
2946 | if (nfonts2 > 0) | |
2947 | { | |
2948 | if (reg_prio > 0) | |
8e1b21a7 KH |
2949 | for (i = 0; i < nfonts2; i++) |
2950 | fonts2[i].registry_priority = reg_prio; | |
154c2d39 KH |
2951 | if (nfonts > 0) |
2952 | *fonts = concat_font_list (*fonts, nfonts, fonts2, nfonts2); | |
2953 | else | |
2954 | *fonts = fonts2; | |
2955 | nfonts += nfonts2; | |
2956 | } | |
32fcc231 GM |
2957 | } |
2958 | } | |
2959 | ||
2960 | return nfonts; | |
2961 | } | |
2962 | ||
2963 | ||
82641697 | 2964 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2965 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2966 | entries. */ |
2967 | ||
2968 | static void | |
2969 | remove_duplicates (list) | |
2970 | Lisp_Object list; | |
2971 | { | |
2972 | Lisp_Object tail = list; | |
178c5d9c | 2973 | |
82641697 GM |
2974 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2975 | { | |
2976 | Lisp_Object next = XCDR (tail); | |
2977 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2978 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2979 | else |
2980 | tail = XCDR (tail); | |
2981 | } | |
2982 | } | |
2983 | ||
2984 | ||
92610620 | 2985 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2986 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2987 | If FAMILY is omitted or nil, list all families. |
2988 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2989 | `?' and `*'. | |
2990 | If FRAME is omitted or nil, use the selected frame. | |
2991 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2992 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2993 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2994 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2995 | width, weight and slant of the font. These symbols are the same as for | |
2996 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2997 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2998 | giving the registry and encoding of the font. | |
2999 | The result list is sorted according to the current setting of | |
7ee72033 MB |
3000 | the face font sort order. */) |
3001 | (family, frame) | |
82641697 GM |
3002 | Lisp_Object family, frame; |
3003 | { | |
3004 | struct frame *f = check_x_frame (frame); | |
3005 | struct font_name *fonts; | |
3006 | int i, nfonts; | |
3007 | Lisp_Object result; | |
3008 | struct gcpro gcpro1; | |
82641697 | 3009 | |
39506348 | 3010 | if (!NILP (family)) |
b7826503 | 3011 | CHECK_STRING (family); |
178c5d9c | 3012 | |
82641697 GM |
3013 | result = Qnil; |
3014 | GCPRO1 (result); | |
39506348 | 3015 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
3016 | for (i = nfonts - 1; i >= 0; --i) |
3017 | { | |
057df17c GM |
3018 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
3019 | char *tem; | |
82641697 | 3020 | |
82641697 GM |
3021 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
3022 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
3023 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
3024 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
3025 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
3026 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
3027 | tem = build_font_name (fonts + i); |
3028 | ASET (v, 6, build_string (tem)); | |
3029 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
3030 | fonts[i].fields[XLFD_ENCODING]); | |
3031 | ASET (v, 7, build_string (tem)); | |
3032 | xfree (tem); | |
178c5d9c | 3033 | |
82641697 | 3034 | result = Fcons (v, result); |
82641697 GM |
3035 | } |
3036 | ||
3037 | remove_duplicates (result); | |
3038 | free_font_names (fonts, nfonts); | |
3039 | UNGCPRO; | |
3040 | return result; | |
3041 | } | |
3042 | ||
3043 | ||
3044 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
3045 | 0, 1, 0, | |
7ee72033 | 3046 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
3047 | If FRAME is omitted or nil, use the selected frame. |
3048 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
3049 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
3050 | are fixed-pitch. */) |
3051 | (frame) | |
82641697 GM |
3052 | Lisp_Object frame; |
3053 | { | |
3054 | struct frame *f = check_x_frame (frame); | |
3055 | int nfonts, i; | |
3056 | struct font_name *fonts; | |
3057 | Lisp_Object result; | |
3058 | struct gcpro gcpro1; | |
aed13378 | 3059 | int count = SPECPDL_INDEX (); |
178c5d9c | 3060 | |
ee5be7c3 JD |
3061 | /* Let's consider all fonts. */ |
3062 | specbind (intern ("font-list-limit"), make_number (-1)); | |
3063 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 3064 | |
82641697 GM |
3065 | result = Qnil; |
3066 | GCPRO1 (result); | |
3067 | for (i = nfonts - 1; i >= 0; --i) | |
3068 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
3069 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
3070 | result); | |
3071 | ||
3072 | remove_duplicates (result); | |
3073 | free_font_names (fonts, nfonts); | |
3074 | UNGCPRO; | |
057df17c | 3075 | return unbind_to (count, result); |
82641697 GM |
3076 | } |
3077 | ||
3078 | ||
3079 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 3080 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
3081 | If optional arguments FACE and FRAME are specified, return only fonts |
3082 | the same size as FACE on FRAME. | |
3083 | PATTERN is a string, perhaps with wildcard characters; | |
3084 | the * character matches any substring, and | |
3085 | the ? character matches any single character. | |
3086 | PATTERN is case-insensitive. | |
3087 | FACE is a face name--a symbol. | |
3088 | ||
3089 | The return value is a list of strings, suitable as arguments to | |
3090 | set-face-font. | |
3091 | ||
3092 | Fonts Emacs can't use may or may not be excluded | |
3093 | even if they match PATTERN and FACE. | |
3094 | The optional fourth argument MAXIMUM sets a limit on how many | |
3095 | fonts to match. The first MAXIMUM fonts are reported. | |
3096 | The optional fifth argument WIDTH, if specified, is a number of columns | |
3097 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
3098 | the WIDTH times as wide as FACE on FRAME. */) |
3099 | (pattern, face, frame, maximum, width) | |
82641697 GM |
3100 | Lisp_Object pattern, face, frame, maximum, width; |
3101 | { | |
3102 | struct frame *f; | |
3103 | int size; | |
3104 | int maxnames; | |
3105 | ||
3106 | check_x (); | |
b7826503 | 3107 | CHECK_STRING (pattern); |
178c5d9c | 3108 | |
82641697 | 3109 | if (NILP (maximum)) |
ee5be7c3 | 3110 | maxnames = -1; |
82641697 GM |
3111 | else |
3112 | { | |
b7826503 | 3113 | CHECK_NATNUM (maximum); |
82641697 GM |
3114 | maxnames = XINT (maximum); |
3115 | } | |
3116 | ||
3117 | if (!NILP (width)) | |
b7826503 | 3118 | CHECK_NUMBER (width); |
82641697 GM |
3119 | |
3120 | /* We can't simply call check_x_frame because this function may be | |
3121 | called before any frame is created. */ | |
3122 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 3123 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
3124 | { |
3125 | /* Perhaps we have not yet created any frame. */ | |
3126 | f = NULL; | |
3127 | face = Qnil; | |
3128 | } | |
3129 | ||
3130 | /* Determine the width standard for comparison with the fonts we find. */ | |
3131 | ||
3132 | if (NILP (face)) | |
3133 | size = 0; | |
3134 | else | |
3135 | { | |
3136 | /* This is of limited utility since it works with character | |
3137 | widths. Keep it for compatibility. --gerd. */ | |
000fc2b1 | 3138 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
3139 | struct face *face = (face_id < 0 |
3140 | ? NULL | |
3141 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 3142 | |
b5de343d | 3143 | if (face && face->font) |
c3cee013 | 3144 | size = FONT_WIDTH (face->font); |
82641697 | 3145 | else |
c623bbd3 | 3146 | size = FONT_WIDTH (FRAME_FONT (f)); /* FRAME_COLUMN_WIDTH (f) */ |
82641697 GM |
3147 | |
3148 | if (!NILP (width)) | |
3149 | size *= XINT (width); | |
3150 | } | |
3151 | ||
3152 | { | |
3153 | Lisp_Object args[2]; | |
3154 | ||
3155 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
3156 | if (f == NULL) | |
3157 | /* We don't have to check fontsets. */ | |
3158 | return args[0]; | |
3159 | args[1] = list_fontsets (f, pattern, size); | |
3160 | return Fnconc (2, args); | |
3161 | } | |
3162 | } | |
3163 | ||
c3cee013 | 3164 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3165 | |
3166 | ||
3167 | \f | |
3168 | /*********************************************************************** | |
3169 | Lisp Faces | |
3170 | ***********************************************************************/ | |
3171 | ||
a08332c0 GM |
3172 | /* Access face attributes of face LFACE, a Lisp vector. */ |
3173 | ||
3174 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
3175 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
3176 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
3177 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
3178 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
3179 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
3180 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
3181 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
3182 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
3183 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
3184 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
3185 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
3186 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
3187 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
3188 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
3189 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
763bc839 | 3190 | #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX) |
82641697 GM |
3191 | |
3192 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
3193 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
3194 | ||
3195 | #define LFACEP(LFACE) \ | |
3196 | (VECTORP (LFACE) \ | |
3197 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 3198 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 3199 | |
178c5d9c | 3200 | |
82641697 GM |
3201 | #if GLYPH_DEBUG |
3202 | ||
3203 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
3204 | ||
3205 | static void | |
3206 | check_lface_attrs (attrs) | |
3207 | Lisp_Object *attrs; | |
3208 | { | |
3209 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2ff10663 | 3210 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
82641697 GM |
3211 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
3212 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2ff10663 | 3213 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
82641697 | 3214 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
a08332c0 | 3215 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2ff10663 | 3216 | || IGNORE_DEFFACE_P (attrs[LFACE_AVGWIDTH_INDEX]) |
a08332c0 | 3217 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); |
82641697 | 3218 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2ff10663 | 3219 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3220 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3221 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3222 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 | 3223 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2ff10663 | 3224 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
82641697 GM |
3225 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
3226 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2ff10663 | 3227 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
82641697 GM |
3228 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
3229 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2ff10663 | 3230 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
82641697 GM |
3231 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
3232 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3233 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2ff10663 | 3234 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
82641697 GM |
3235 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
3236 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3237 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2ff10663 | 3238 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
82641697 GM |
3239 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
3240 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3241 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2ff10663 | 3242 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
82641697 GM |
3243 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
3244 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3245 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3246 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3247 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2ff10663 | 3248 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
82641697 GM |
3249 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
3250 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2ff10663 | 3251 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
82641697 GM |
3252 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
3253 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2ff10663 | 3254 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
82641697 | 3255 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
2c20458f | 3256 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2ff10663 | 3257 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
2c20458f MB |
3258 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
3259 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3260 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3261 | #ifdef HAVE_WINDOW_SYSTEM |
3262 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2ff10663 | 3263 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
82641697 | 3264 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
fef04523 | 3265 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3266 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
2ff10663 | 3267 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
d2cafc8c | 3268 | || NILP (attrs[LFACE_FONT_INDEX]) |
f4d3bea3 KH |
3269 | #ifdef USE_FONT_BACKEND |
3270 | || FONT_OBJECT_P (attrs[LFACE_FONT_INDEX]) | |
3271 | #endif /* USE_FONT_BACKEND */ | |
d2cafc8c | 3272 | || STRINGP (attrs[LFACE_FONT_INDEX])); |
763bc839 KH |
3273 | xassert (UNSPECIFIEDP (attrs[LFACE_FONTSET_INDEX]) |
3274 | || STRINGP (attrs[LFACE_FONTSET_INDEX])); | |
82641697 GM |
3275 | #endif |
3276 | } | |
3277 | ||
3278 | ||
3279 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3280 | ||
3281 | static void | |
3282 | check_lface (lface) | |
3283 | Lisp_Object lface; | |
3284 | { | |
3285 | if (!NILP (lface)) | |
3286 | { | |
3287 | xassert (LFACEP (lface)); | |
3288 | check_lface_attrs (XVECTOR (lface)->contents); | |
3289 | } | |
3290 | } | |
3291 | ||
3292 | #else /* GLYPH_DEBUG == 0 */ | |
3293 | ||
3294 | #define check_lface_attrs(attrs) (void) 0 | |
3295 | #define check_lface(lface) (void) 0 | |
3296 | ||
3297 | #endif /* GLYPH_DEBUG == 0 */ | |
3298 | ||
3299 | ||
a0a23346 MB |
3300 | \f |
3301 | /* Face-merge cycle checking. */ | |
3302 | ||
3303 | /* A `named merge point' is simply a point during face-merging where we | |
3304 | look up a face by name. We keep a stack of which named lookups we're | |
3305 | currently processing so that we can easily detect cycles, using a | |
3306 | linked- list of struct named_merge_point structures, typically | |
3307 | allocated on the stack frame of the named lookup functions which are | |
3308 | active (so no consing is required). */ | |
3309 | struct named_merge_point | |
3310 | { | |
3311 | Lisp_Object face_name; | |
3312 | struct named_merge_point *prev; | |
3313 | }; | |
3314 | ||
3315 | ||
3316 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
3317 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
6e87ac8f MB |
3318 | FACE_NAME, as the head of the linked list pointed to by |
3319 | NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 MB |
3320 | |
3321 | static INLINE int | |
3322 | push_named_merge_point (struct named_merge_point *new_named_merge_point, | |
3323 | Lisp_Object face_name, | |
3324 | struct named_merge_point **named_merge_points) | |
3325 | { | |
3326 | struct named_merge_point *prev; | |
3327 | ||
3328 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
3329 | if (EQ (face_name, prev->face_name)) | |
6e87ac8f | 3330 | return 0; |
a0a23346 MB |
3331 | |
3332 | new_named_merge_point->face_name = face_name; | |
3333 | new_named_merge_point->prev = *named_merge_points; | |
3334 | ||
3335 | *named_merge_points = new_named_merge_point; | |
3336 | ||
3337 | return 1; | |
3338 | } | |
3339 | ||
3340 | \f | |
3341 | ||
2ed82a63 | 3342 | #if 0 /* Seems to be unused. */ |
91fd98fc KL |
3343 | static Lisp_Object |
3344 | internal_resolve_face_name (nargs, args) | |
3345 | int nargs; | |
3346 | Lisp_Object *args; | |
3347 | { | |
2ed82a63 | 3348 | return Fget (args[0], args[1]); |
91fd98fc KL |
3349 | } |
3350 | ||
3351 | static Lisp_Object | |
3352 | resolve_face_name_error (ignore) | |
3353 | Lisp_Object ignore; | |
3354 | { | |
3355 | return Qnil; | |
3356 | } | |
2ed82a63 | 3357 | #endif |
a0a23346 | 3358 | |
39506348 | 3359 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
3360 | to make it a symbol. If FACE_NAME is an alias for another face, |
3361 | return that face's name. | |
3362 | ||
3363 | Return default face in case of errors. */ | |
c7ae3284 GM |
3364 | |
3365 | static Lisp_Object | |
d1bf13b3 | 3366 | resolve_face_name (face_name, signal_p) |
c7ae3284 | 3367 | Lisp_Object face_name; |
d1bf13b3 | 3368 | int signal_p; |
c7ae3284 | 3369 | { |
d1bf13b3 KS |
3370 | Lisp_Object orig_face; |
3371 | Lisp_Object tortoise, hare; | |
178c5d9c | 3372 | |
c7ae3284 | 3373 | if (STRINGP (face_name)) |
d5db4077 | 3374 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3375 | |
d1bf13b3 KS |
3376 | if (NILP (face_name) || !SYMBOLP (face_name)) |
3377 | return face_name; | |
3378 | ||
3379 | orig_face = face_name; | |
3380 | tortoise = hare = face_name; | |
3381 | ||
3382 | while (1) | |
c7ae3284 | 3383 | { |
d1bf13b3 KS |
3384 | face_name = hare; |
3385 | hare = Fget (hare, Qface_alias); | |
3386 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 3387 | break; |
d1bf13b3 KS |
3388 | |
3389 | face_name = hare; | |
3390 | hare = Fget (hare, Qface_alias); | |
3391 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 3392 | break; |
d1bf13b3 KS |
3393 | |
3394 | tortoise = Fget (tortoise, Qface_alias); | |
3395 | if (EQ (hare, tortoise)) | |
3396 | { | |
3397 | if (signal_p) | |
8009eb44 | 3398 | xsignal1 (Qcircular_list, orig_face); |
d1bf13b3 KS |
3399 | return Qdefault; |
3400 | } | |
c7ae3284 GM |
3401 | } |
3402 | ||
3403 | return face_name; | |
3404 | } | |
3405 | ||
3406 | ||
82641697 | 3407 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3408 | return the definition for new frames. FACE_NAME may be a string or |
3409 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3410 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3411 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3412 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3413 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3414 | name. */ | |
82641697 GM |
3415 | |
3416 | static INLINE Lisp_Object | |
3417 | lface_from_face_name (f, face_name, signal_p) | |
3418 | struct frame *f; | |
3419 | Lisp_Object face_name; | |
3420 | int signal_p; | |
3421 | { | |
c7ae3284 | 3422 | Lisp_Object lface; |
82641697 | 3423 | |
d1bf13b3 | 3424 | face_name = resolve_face_name (face_name, signal_p); |
92610620 | 3425 | |
82641697 GM |
3426 | if (f) |
3427 | lface = assq_no_quit (face_name, f->face_alist); | |
3428 | else | |
3429 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3430 | ||
3431 | if (CONSP (lface)) | |
3432 | lface = XCDR (lface); | |
3433 | else if (signal_p) | |
3434 | signal_error ("Invalid face", face_name); | |
3435 | ||
3436 | check_lface (lface); | |
3437 | return lface; | |
3438 | } | |
3439 | ||
3440 | ||
e7d7fd8c MB |
3441 | /* Get face attributes of face FACE_NAME from frame-local faces on |
3442 | frame F. Store the resulting attributes in ATTRS which must point | |
3443 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3444 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3445 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3446 | ||
3447 | static INLINE int | |
3448 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3449 | struct frame *f; | |
3450 | Lisp_Object face_name; | |
3451 | Lisp_Object *attrs; | |
3452 | int signal_p; | |
3453 | { | |
3454 | Lisp_Object lface; | |
3455 | int success_p; | |
3456 | ||
3457 | lface = lface_from_face_name (f, face_name, signal_p); | |
3458 | if (!NILP (lface)) | |
3459 | { | |
3460 | bcopy (XVECTOR (lface)->contents, attrs, | |
3461 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3462 | success_p = 1; | |
3463 | } | |
3464 | else | |
3465 | success_p = 0; | |
3466 | ||
3467 | return success_p; | |
3468 | } | |
3469 | ||
3470 | ||
82641697 GM |
3471 | /* Non-zero if all attributes in face attribute vector ATTRS are |
3472 | specified, i.e. are non-nil. */ | |
3473 | ||
3474 | static int | |
3475 | lface_fully_specified_p (attrs) | |
3476 | Lisp_Object *attrs; | |
3477 | { | |
3478 | int i; | |
3479 | ||
3480 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3481 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
8f924df7 | 3482 | && i != LFACE_AVGWIDTH_INDEX && i != LFACE_FONTSET_INDEX) |
2ff10663 | 3483 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i])) |
6b61353c KH |
3484 | #ifdef MAC_OS |
3485 | /* MAC_TODO: No stipple support on Mac OS yet, this index is | |
3486 | always unspecified. */ | |
3487 | && i != LFACE_STIPPLE_INDEX | |
3488 | #endif | |
3489 | ) | |
6288c62f | 3490 | break; |
82641697 GM |
3491 | |
3492 | return i == LFACE_VECTOR_SIZE; | |
3493 | } | |
3494 | ||
c3cee013 | 3495 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3496 | |
39506348 KH |
3497 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3498 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3499 | unspecified attributes of LFACE. The exception is `font' | |
3500 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3501 | ||
3502 | If FONTNAME is not available on frame F, | |
3503 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3504 | If the fullname is not in a valid XLFD format, | |
3505 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3506 | in LFACE and return 1. | |
3507 | Otherwise, return 1. */ | |
178c5d9c | 3508 | |
82641697 | 3509 | static int |
39506348 | 3510 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3511 | struct frame *f; |
3512 | Lisp_Object lface; | |
39506348 | 3513 | Lisp_Object fontname; |
3221576b | 3514 | int force_p, may_fail_p; |
82641697 GM |
3515 | { |
3516 | struct font_name font; | |
3517 | char *buffer; | |
3518 | int pt; | |
39506348 KH |
3519 | int have_xlfd_p; |
3520 | int fontset; | |
d5db4077 | 3521 | char *font_name = SDATA (fontname); |
39506348 | 3522 | struct font_info *font_info; |
82641697 | 3523 | |
39506348 KH |
3524 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3525 | fontset = fs_query_fontset (fontname, 0); | |
426b2119 | 3526 | |
25b1546d | 3527 | if (fontset > 0) |
d5db4077 | 3528 | font_name = SDATA (fontset_ascii (fontset)); |
25b1546d KH |
3529 | else if (fontset == 0) |
3530 | { | |
3531 | if (may_fail_p) | |
3532 | return 0; | |
3533 | abort (); | |
3534 | } | |
39506348 KH |
3535 | |
3536 | /* Check if FONT_NAME is surely available on the system. Usually | |
3537 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3538 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3539 | caching it now is not futail because we anyway load the font | |
3540 | later. */ | |
3541 | BLOCK_INPUT; | |
81b39386 | 3542 | font_info = FS_LOAD_FONT (f, font_name); |
39506348 | 3543 | UNBLOCK_INPUT; |
82641697 | 3544 | |
39506348 | 3545 | if (!font_info) |
3221576b GM |
3546 | { |
3547 | if (may_fail_p) | |
3548 | return 0; | |
39506348 | 3549 | abort (); |
3221576b | 3550 | } |
39506348 KH |
3551 | |
3552 | font.name = STRDUPA (font_info->full_name); | |
3553 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3554 | |
82641697 | 3555 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3556 | new frames would never take effect. If we couldn't get a font |
3557 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3558 | |
82641697 GM |
3559 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3560 | { | |
39506348 KH |
3561 | Lisp_Object val; |
3562 | if (have_xlfd_p) | |
3563 | { | |
3564 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3565 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3566 | + 2); | |
3567 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3568 | font.fields[XLFD_FAMILY]); | |
3569 | val = build_string (buffer); | |
3570 | } | |
3571 | else | |
3572 | val = build_string ("*"); | |
3573 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3574 | } |
3575 | ||
3576 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3577 | { | |
39506348 KH |
3578 | if (have_xlfd_p) |
3579 | pt = xlfd_point_size (f, &font); | |
3580 | else | |
3581 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3582 | xassert (pt > 0); |
3583 | LFACE_HEIGHT (lface) = make_number (pt); | |
3584 | } | |
3585 | ||
3586 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3587 | LFACE_SWIDTH (lface) |
3588 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3589 | |
a08332c0 GM |
3590 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3591 | LFACE_AVGWIDTH (lface) | |
3592 | = (have_xlfd_p | |
3593 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3594 | : Qunspecified); | |
3595 | ||
82641697 | 3596 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3597 | LFACE_WEIGHT (lface) |
3598 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3599 | |
3600 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3601 | LFACE_SLANT (lface) |
3602 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3603 | |
21228b3d | 3604 | if (fontset > 0) |
763bc839 KH |
3605 | { |
3606 | LFACE_FONT (lface) = build_string (font_info->full_name); | |
3607 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3608 | } | |
3609 | else | |
7f8005cd KH |
3610 | { |
3611 | LFACE_FONT (lface) = fontname; | |
3612 | fontset | |
3613 | = new_fontset_from_font_name (build_string (font_info->full_name)); | |
3614 | LFACE_FONTSET (lface) = fontset_name (fontset); | |
3615 | } | |
82641697 GM |
3616 | return 1; |
3617 | } | |
d12d0a9b | 3618 | |
f4d3bea3 KH |
3619 | #ifdef USE_FONT_BACKEND |
3620 | /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT and | |
3621 | FONTSET. If FORCE_P is zero, set only unspecified attributes of | |
3622 | LFACE. The exceptions are `font' and `fontset' attributes. They | |
3623 | are set regardless of FORCE_P. */ | |
3624 | ||
3625 | static void | |
3626 | set_lface_from_font_and_fontset (f, lface, font_object, fontset, force_p) | |
3627 | struct frame *f; | |
3628 | Lisp_Object lface, font_object; | |
3629 | int fontset; | |
3630 | int force_p; | |
3631 | { | |
3632 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
3633 | Lisp_Object entity = font->entity; | |
3634 | Lisp_Object val; | |
3635 | ||
3636 | /* Set attributes only if unspecified, otherwise face defaults for | |
3637 | new frames would never take effect. If the font doesn't have a | |
3638 | specific property, set a normal value for that. */ | |
3639 | ||
3640 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
3641 | { | |
3642 | Lisp_Object foundry = AREF (entity, FONT_FOUNDRY_INDEX); | |
3643 | Lisp_Object family = AREF (entity, FONT_FAMILY_INDEX); | |
3644 | ||
3645 | if (! NILP (foundry)) | |
3646 | { | |
3647 | if (! NILP (family)) | |
3648 | val = concat3 (SYMBOL_NAME (foundry), build_string ("-"), | |
3649 | SYMBOL_NAME (family)); | |
3650 | else | |
3651 | val = concat2 (SYMBOL_NAME (foundry), build_string ("-*")); | |
3652 | } | |
3653 | else | |
3654 | { | |
3655 | if (! NILP (family)) | |
3656 | val = SYMBOL_NAME (family); | |
3657 | else | |
3658 | val = build_string ("*"); | |
3659 | } | |
3660 | LFACE_FAMILY (lface) = val; | |
3661 | } | |
3662 | ||
3663 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3664 | { | |
3665 | int pt = pixel_point_size (f, font->pixel_size * 10); | |
3666 | ||
3667 | xassert (pt > 0); | |
3668 | LFACE_HEIGHT (lface) = make_number (pt); | |
3669 | } | |
3670 | ||
3671 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) | |
3672 | LFACE_AVGWIDTH (lface) = make_number (font->font.average_width); | |
3673 | ||
3674 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
3675 | { | |
3676 | Lisp_Object weight = font_symbolic_weight (entity); | |
3677 | ||
3678 | val = NILP (weight) ? Qnormal : face_symbolic_weight (weight); | |
3679 | LFACE_WEIGHT (lface) = ! NILP (val) ? val : weight; | |
3680 | } | |
3681 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
3682 | { | |
3683 | Lisp_Object slant = font_symbolic_slant (entity); | |
3684 | ||
3685 | val = NILP (slant) ? Qnormal : face_symbolic_slant (slant); | |
3686 | LFACE_SLANT (lface) = ! NILP (val) ? val : slant; | |
3687 | } | |
3688 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
3689 | { | |
3690 | Lisp_Object width = font_symbolic_width (entity); | |
3691 | ||
3692 | val = NILP (width) ? Qnormal : face_symbolic_swidth (width); | |
3693 | LFACE_SWIDTH (lface) = ! NILP (val) ? val : width; | |
3694 | } | |
3695 | ||
7c0b3f4d KH |
3696 | LFACE_FONT (lface) = make_unibyte_string (font->font.full_name, |
3697 | strlen (font->font.full_name)); | |
f4d3bea3 KH |
3698 | LFACE_FONTSET (lface) = fontset_name (fontset); |
3699 | } | |
3700 | #endif /* USE_FONT_BACKEND */ | |
3701 | ||
c3cee013 | 3702 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3703 | |
3704 | ||
2c20458f MB |
3705 | /* Merges the face height FROM with the face height TO, and returns the |
3706 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3707 | returned instead. FROM and TO may be either absolute face heights or |
3708 | `relative' heights; the returned value is always an absolute height | |
3709 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3710 | will be protected from garbage-collection if this function makes a | |
3711 | call into lisp. */ | |
2c20458f MB |
3712 | |
3713 | Lisp_Object | |
e1e419ec RS |
3714 | merge_face_heights (from, to, invalid) |
3715 | Lisp_Object from, to, invalid; | |
2c20458f | 3716 | { |
cdfaafa9 | 3717 | Lisp_Object result = invalid; |
2c20458f MB |
3718 | |
3719 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3720 | /* FROM is absolute, just use it as is. */ |
3721 | result = from; | |
3722 | else if (FLOATP (from)) | |
3723 | /* FROM is a scale, use it to adjust TO. */ | |
3724 | { | |
3725 | if (INTEGERP (to)) | |
3726 | /* relative X absolute => absolute */ | |
c319cf24 | 3727 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3728 | else if (FLOATP (to)) |
3729 | /* relative X relative => relative */ | |
3730 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
3731 | else if (UNSPECIFIEDP (to)) |
3732 | result = from; | |
2c20458f | 3733 | } |
2c20458f | 3734 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3735 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3736 | { |
3737 | /* Call function with current height as argument. | |
3738 | From is the new height. */ | |
cdfaafa9 | 3739 | Lisp_Object args[2]; |
2c20458f MB |
3740 | |
3741 | args[0] = from; | |
3742 | args[1] = to; | |
cdfaafa9 | 3743 | result = safe_call (2, args); |
2c20458f | 3744 | |
cdfaafa9 MB |
3745 | /* Ensure that if TO was absolute, so is the result. */ |
3746 | if (INTEGERP (to) && !INTEGERP (result)) | |
3747 | result = invalid; | |
2c20458f MB |
3748 | } |
3749 | ||
cdfaafa9 | 3750 | return result; |
2c20458f MB |
3751 | } |
3752 | ||
3753 | ||
3754 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 | 3755 | store the resulting attributes in TO, which must be already be |
e7d7fd8c MB |
3756 | completely specified and contain only absolute attributes. Every |
3757 | specified attribute of FROM overrides the corresponding attribute of | |
3758 | TO; relative attributes in FROM are merged with the absolute value in | |
3759 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect | |
3760 | loops in face inheritance; it should be 0 when called from other | |
3761 | places. */ | |
82641697 GM |
3762 | |
3763 | static INLINE void | |
a0a23346 | 3764 | merge_face_vectors (f, from, to, named_merge_points) |
2c20458f | 3765 | struct frame *f; |
82641697 | 3766 | Lisp_Object *from, *to; |
a0a23346 | 3767 | struct named_merge_point *named_merge_points; |
82641697 GM |
3768 | { |
3769 | int i; | |
2c20458f MB |
3770 | |
3771 | /* If FROM inherits from some other faces, merge their attributes into | |
3772 | TO before merging FROM's direct attributes. Note that an :inherit | |
3773 | attribute of `unspecified' is the same as one of nil; we never | |
3774 | merge :inherit attributes, so nil is more correct, but lots of | |
3775 | other code uses `unspecified' as a generic value for face attributes. */ | |
3776 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3777 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 3778 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 3779 | |
87188200 MB |
3780 | /* If TO specifies a :font attribute, and FROM specifies some |
3781 | font-related attribute, we need to clear TO's :font attribute | |
3782 | (because it will be inconsistent with whatever FROM specifies, and | |
3783 | FROM takes precedence). */ | |
3784 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3785 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3786 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3787 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3788 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3789 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3790 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3791 | to[LFACE_FONT_INDEX] = Qnil; |
3792 | ||
82641697 GM |
3793 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3794 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3795 | { |
3796 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
e1e419ec | 3797 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
ab8469eb PJ |
3798 | else |
3799 | to[i] = from[i]; | |
3800 | } | |
2c20458f MB |
3801 | |
3802 | /* TO is always an absolute face, which should inherit from nothing. | |
3803 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3804 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3805 | } | |
3806 | ||
a0a23346 MB |
3807 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
3808 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
3809 | inheritance. Returns true if FACE_NAME is a valid face name and | |
3810 | merging succeeded. */ | |
6288c62f | 3811 | |
a0a23346 MB |
3812 | static int |
3813 | merge_named_face (f, face_name, to, named_merge_points) | |
2c20458f | 3814 | struct frame *f; |
a0a23346 | 3815 | Lisp_Object face_name; |
2c20458f | 3816 | Lisp_Object *to; |
a0a23346 | 3817 | struct named_merge_point *named_merge_points; |
2c20458f | 3818 | { |
a0a23346 | 3819 | struct named_merge_point named_merge_point; |
2c20458f | 3820 | |
a0a23346 MB |
3821 | if (push_named_merge_point (&named_merge_point, |
3822 | face_name, &named_merge_points)) | |
2c20458f | 3823 | { |
e1e419ec | 3824 | struct gcpro gcpro1; |
e7d7fd8c MB |
3825 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
3826 | int ok = get_lface_attributes (f, face_name, from, 0); | |
2c20458f | 3827 | |
e7d7fd8c MB |
3828 | if (ok) |
3829 | { | |
3830 | GCPRO1 (named_merge_point.face_name); | |
3831 | merge_face_vectors (f, from, to, named_merge_points); | |
3832 | UNGCPRO; | |
3833 | } | |
3834 | ||
3835 | return ok; | |
2c20458f | 3836 | } |
a0a23346 MB |
3837 | else |
3838 | return 0; | |
82641697 GM |
3839 | } |
3840 | ||
3841 | ||
a0a23346 MB |
3842 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
3843 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
3844 | problems with FACE_REF cause an error message to be shown. Return | |
3845 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
3846 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
3847 | list structure; it may be 0 for most callers. | |
3848 | ||
3849 | FACE_REF may be a single face specification or a list of such | |
3850 | specifications. Each face specification can be: | |
82641697 GM |
3851 | |
3852 | 1. A symbol or string naming a Lisp face. | |
3853 | ||
3854 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3855 | KEYWORD is a face attribute name, and value is an appropriate value | |
3856 | for that attribute. | |
3857 | ||
3858 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3859 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3860 | for compatibility with 20.2. | |
3861 | ||
3862 | Face specifications earlier in lists take precedence over later | |
3863 | specifications. */ | |
178c5d9c | 3864 | |
a0a23346 MB |
3865 | static int |
3866 | merge_face_ref (f, face_ref, to, err_msgs, named_merge_points) | |
82641697 | 3867 | struct frame *f; |
a0a23346 | 3868 | Lisp_Object face_ref; |
82641697 | 3869 | Lisp_Object *to; |
a0a23346 MB |
3870 | int err_msgs; |
3871 | struct named_merge_point *named_merge_points; | |
82641697 | 3872 | { |
a0a23346 MB |
3873 | int ok = 1; /* Succeed without an error? */ |
3874 | ||
3875 | if (CONSP (face_ref)) | |
82641697 | 3876 | { |
a0a23346 | 3877 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 3878 | |
82641697 GM |
3879 | if (EQ (first, Qforeground_color) |
3880 | || EQ (first, Qbackground_color)) | |
3881 | { | |
3882 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3883 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 3884 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
3885 | Lisp_Object color = first; |
3886 | ||
3887 | if (STRINGP (color_name)) | |
3888 | { | |
3889 | if (EQ (color, Qforeground_color)) | |
3890 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3891 | else | |
3892 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3893 | } | |
3894 | else | |
a0a23346 MB |
3895 | { |
3896 | if (err_msgs) | |
3897 | add_to_log ("Invalid face color", color_name, Qnil); | |
3898 | ok = 0; | |
3899 | } | |
82641697 GM |
3900 | } |
3901 | else if (SYMBOLP (first) | |
d5db4077 | 3902 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3903 | { |
3904 | /* Assume this is the property list form. */ | |
a0a23346 | 3905 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 3906 | { |
a0a23346 MB |
3907 | Lisp_Object keyword = XCAR (face_ref); |
3908 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
3909 | int err = 0; | |
82641697 | 3910 | |
d9639b25 RS |
3911 | /* Specifying `unspecified' is a no-op. */ |
3912 | if (EQ (value, Qunspecified)) | |
3913 | ; | |
3914 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
3915 | { |
3916 | if (STRINGP (value)) | |
3917 | to[LFACE_FAMILY_INDEX] = value; | |
3918 | else | |
a0a23346 | 3919 | err = 1; |
82641697 GM |
3920 | } |
3921 | else if (EQ (keyword, QCheight)) | |
3922 | { | |
2c20458f | 3923 | Lisp_Object new_height = |
e1e419ec | 3924 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 3925 | |
a0a23346 | 3926 | if (! NILP (new_height)) |
2c20458f | 3927 | to[LFACE_HEIGHT_INDEX] = new_height; |
a0a23346 MB |
3928 | else |
3929 | err = 1; | |
82641697 GM |
3930 | } |
3931 | else if (EQ (keyword, QCweight)) | |
3932 | { | |
3933 | if (SYMBOLP (value) | |
3934 | && face_numeric_weight (value) >= 0) | |
3935 | to[LFACE_WEIGHT_INDEX] = value; | |
3936 | else | |
a0a23346 | 3937 | err = 1; |
82641697 GM |
3938 | } |
3939 | else if (EQ (keyword, QCslant)) | |
3940 | { | |
3941 | if (SYMBOLP (value) | |
3942 | && face_numeric_slant (value) >= 0) | |
3943 | to[LFACE_SLANT_INDEX] = value; | |
3944 | else | |
a0a23346 | 3945 | err = 1; |
82641697 GM |
3946 | } |
3947 | else if (EQ (keyword, QCunderline)) | |
3948 | { | |
3949 | if (EQ (value, Qt) | |
3950 | || NILP (value) | |
3951 | || STRINGP (value)) | |
3952 | to[LFACE_UNDERLINE_INDEX] = value; | |
3953 | else | |
a0a23346 | 3954 | err = 1; |
82641697 GM |
3955 | } |
3956 | else if (EQ (keyword, QCoverline)) | |
3957 | { | |
3958 | if (EQ (value, Qt) | |
3959 | || NILP (value) | |
3960 | || STRINGP (value)) | |
3961 | to[LFACE_OVERLINE_INDEX] = value; | |
3962 | else | |
a0a23346 | 3963 | err = 1; |
82641697 GM |
3964 | } |
3965 | else if (EQ (keyword, QCstrike_through)) | |
3966 | { | |
3967 | if (EQ (value, Qt) | |
3968 | || NILP (value) | |
3969 | || STRINGP (value)) | |
3970 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3971 | else | |
a0a23346 | 3972 | err = 1; |
82641697 GM |
3973 | } |
3974 | else if (EQ (keyword, QCbox)) | |
3975 | { | |
3976 | if (EQ (value, Qt)) | |
3977 | value = make_number (1); | |
3978 | if (INTEGERP (value) | |
3979 | || STRINGP (value) | |
3980 | || CONSP (value) | |
3981 | || NILP (value)) | |
3982 | to[LFACE_BOX_INDEX] = value; | |
3983 | else | |
a0a23346 | 3984 | err = 1; |
82641697 GM |
3985 | } |
3986 | else if (EQ (keyword, QCinverse_video) | |
3987 | || EQ (keyword, QCreverse_video)) | |
3988 | { | |
3989 | if (EQ (value, Qt) || NILP (value)) | |
3990 | to[LFACE_INVERSE_INDEX] = value; | |
3991 | else | |
a0a23346 | 3992 | err = 1; |
82641697 GM |
3993 | } |
3994 | else if (EQ (keyword, QCforeground)) | |
3995 | { | |
3996 | if (STRINGP (value)) | |
3997 | to[LFACE_FOREGROUND_INDEX] = value; | |
3998 | else | |
a0a23346 | 3999 | err = 1; |
82641697 GM |
4000 | } |
4001 | else if (EQ (keyword, QCbackground)) | |
4002 | { | |
4003 | if (STRINGP (value)) | |
4004 | to[LFACE_BACKGROUND_INDEX] = value; | |
4005 | else | |
a0a23346 | 4006 | err = 1; |
82641697 GM |
4007 | } |
4008 | else if (EQ (keyword, QCstipple)) | |
4009 | { | |
4010 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 4011 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
4012 | if (!NILP (pixmap_p)) |
4013 | to[LFACE_STIPPLE_INDEX] = value; | |
4014 | else | |
a0a23346 | 4015 | err = 1; |
82641697 GM |
4016 | #endif |
4017 | } | |
4018 | else if (EQ (keyword, QCwidth)) | |
4019 | { | |
4020 | if (SYMBOLP (value) | |
4021 | && face_numeric_swidth (value) >= 0) | |
4022 | to[LFACE_SWIDTH_INDEX] = value; | |
4023 | else | |
a0a23346 | 4024 | err = 1; |
82641697 | 4025 | } |
2c20458f MB |
4026 | else if (EQ (keyword, QCinherit)) |
4027 | { | |
a0a23346 MB |
4028 | /* This is not really very useful; it's just like a |
4029 | normal face reference. */ | |
4030 | if (! merge_face_ref (f, value, to, | |
4031 | err_msgs, named_merge_points)) | |
4032 | err = 1; | |
2c20458f | 4033 | } |
82641697 | 4034 | else |
a0a23346 | 4035 | err = 1; |
82641697 | 4036 | |
a0a23346 MB |
4037 | if (err) |
4038 | { | |
4039 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
4040 | ok = 0; | |
4041 | } | |
82641697 | 4042 | |
a0a23346 | 4043 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
4044 | } |
4045 | } | |
4046 | else | |
4047 | { | |
a0a23346 MB |
4048 | /* This is a list of face refs. Those at the beginning of the |
4049 | list take precedence over what follows, so we have to merge | |
4050 | from the end backwards. */ | |
4051 | Lisp_Object next = XCDR (face_ref); | |
4052 | ||
4053 | if (! NILP (next)) | |
4054 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
4055 | ||
4056 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
4057 | ok = 0; | |
82641697 GM |
4058 | } |
4059 | } | |
4060 | else | |
4061 | { | |
a0a23346 MB |
4062 | /* FACE_REF ought to be a face name. */ |
4063 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
4064 | if (!ok && err_msgs) | |
4065 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 4066 | } |
a0a23346 MB |
4067 | |
4068 | return ok; | |
82641697 GM |
4069 | } |
4070 | ||
4071 | ||
4072 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
4073 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 4074 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
4075 | If FACE was not known as a face before, create a new one. |
4076 | If optional argument FRAME is specified, make a frame-local face | |
4077 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
4078 | Value is a vector of face attributes. */) |
4079 | (face, frame) | |
82641697 GM |
4080 | Lisp_Object face, frame; |
4081 | { | |
4082 | Lisp_Object global_lface, lface; | |
4083 | struct frame *f; | |
4084 | int i; | |
4085 | ||
b7826503 | 4086 | CHECK_SYMBOL (face); |
82641697 | 4087 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 4088 | |
82641697 GM |
4089 | if (!NILP (frame)) |
4090 | { | |
b7826503 | 4091 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4092 | f = XFRAME (frame); |
4093 | lface = lface_from_face_name (f, face, 0); | |
4094 | } | |
4095 | else | |
4096 | f = NULL, lface = Qnil; | |
4097 | ||
4098 | /* Add a global definition if there is none. */ | |
4099 | if (NILP (global_lface)) | |
4100 | { | |
4101 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4102 | Qunspecified); | |
dfae5f9a | 4103 | ASET (global_lface, 0, Qface); |
178c5d9c | 4104 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 4105 | Vface_new_frame_defaults); |
178c5d9c | 4106 | |
82641697 GM |
4107 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
4108 | face id to Lisp face is given by the vector lface_id_to_name. | |
4109 | The mapping from Lisp face to Lisp face id is given by the | |
4110 | property `face' of the Lisp face name. */ | |
4111 | if (next_lface_id == lface_id_to_name_size) | |
4112 | { | |
4113 | int new_size = max (50, 2 * lface_id_to_name_size); | |
4114 | int sz = new_size * sizeof *lface_id_to_name; | |
4115 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
4116 | lface_id_to_name_size = new_size; | |
4117 | } | |
178c5d9c | 4118 | |
82641697 GM |
4119 | lface_id_to_name[next_lface_id] = face; |
4120 | Fput (face, Qface, make_number (next_lface_id)); | |
4121 | ++next_lface_id; | |
4122 | } | |
4123 | else if (f == NULL) | |
4124 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 4125 | ASET (global_lface, i, Qunspecified); |
178c5d9c | 4126 | |
82641697 GM |
4127 | /* Add a frame-local definition. */ |
4128 | if (f) | |
4129 | { | |
4130 | if (NILP (lface)) | |
4131 | { | |
4132 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
4133 | Qunspecified); | |
dfae5f9a | 4134 | ASET (lface, 0, Qface); |
82641697 GM |
4135 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
4136 | } | |
4137 | else | |
4138 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
dfae5f9a | 4139 | ASET (lface, i, Qunspecified); |
82641697 GM |
4140 | } |
4141 | else | |
4142 | lface = global_lface; | |
4143 | ||
33565969 RS |
4144 | /* Changing a named face means that all realized faces depending on |
4145 | that face are invalid. Since we cannot tell which realized faces | |
4146 | depend on the face, make sure they are all removed. This is done | |
4147 | by incrementing face_change_count. The next call to | |
4148 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4149 | if (NILP (Fget (face, Qface_no_inherit))) |
4150 | { | |
4151 | ++face_change_count; | |
4152 | ++windows_or_buffers_changed; | |
4153 | } | |
33565969 | 4154 | |
82641697 GM |
4155 | xassert (LFACEP (lface)); |
4156 | check_lface (lface); | |
4157 | return lface; | |
4158 | } | |
4159 | ||
4160 | ||
4161 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
4162 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 4163 | doc: /* Return non-nil if FACE names a face. |
1d256714 | 4164 | If optional second argument FRAME is non-nil, check for the |
228299fa | 4165 | existence of a frame-local face with name FACE on that frame. |
7ee72033 MB |
4166 | Otherwise check for the existence of a global face. */) |
4167 | (face, frame) | |
82641697 GM |
4168 | Lisp_Object face, frame; |
4169 | { | |
4170 | Lisp_Object lface; | |
178c5d9c | 4171 | |
65fddb74 JB |
4172 | face = resolve_face_name (face, 1); |
4173 | ||
82641697 GM |
4174 | if (!NILP (frame)) |
4175 | { | |
b7826503 | 4176 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4177 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
4178 | } | |
4179 | else | |
4180 | lface = lface_from_face_name (NULL, face, 0); | |
4181 | ||
4182 | return lface; | |
4183 | } | |
4184 | ||
4185 | ||
4186 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
4187 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 4188 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
4189 | If FRAME is t, copy the global face definition of FROM. |
4190 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
4191 | If NEW-FRAME is a frame, copy that data into the frame-local | |
4192 | definition of TO on NEW-FRAME. If NEW-FRAME is nil. | |
4193 | FRAME controls where the data is copied to. | |
228299fa | 4194 | |
5e9bab6f | 4195 | The value is TO. */) |
7ee72033 | 4196 | (from, to, frame, new_frame) |
82641697 GM |
4197 | Lisp_Object from, to, frame, new_frame; |
4198 | { | |
4199 | Lisp_Object lface, copy; | |
178c5d9c | 4200 | |
b7826503 PJ |
4201 | CHECK_SYMBOL (from); |
4202 | CHECK_SYMBOL (to); | |
82641697 GM |
4203 | |
4204 | if (EQ (frame, Qt)) | |
4205 | { | |
4206 | /* Copy global definition of FROM. We don't make copies of | |
4207 | strings etc. because 20.2 didn't do it either. */ | |
4208 | lface = lface_from_face_name (NULL, from, 1); | |
4209 | copy = Finternal_make_lisp_face (to, Qnil); | |
4210 | } | |
4211 | else | |
4212 | { | |
4213 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
4214 | if (NILP (new_frame)) |
4215 | new_frame = frame; | |
b7826503 PJ |
4216 | CHECK_LIVE_FRAME (frame); |
4217 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
4218 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
4219 | copy = Finternal_make_lisp_face (to, new_frame); | |
4220 | } | |
178c5d9c | 4221 | |
82641697 GM |
4222 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
4223 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 4224 | |
33565969 RS |
4225 | /* Changing a named face means that all realized faces depending on |
4226 | that face are invalid. Since we cannot tell which realized faces | |
4227 | depend on the face, make sure they are all removed. This is done | |
4228 | by incrementing face_change_count. The next call to | |
4229 | init_iterator will then free realized faces. */ | |
46b00436 KS |
4230 | if (NILP (Fget (to, Qface_no_inherit))) |
4231 | { | |
4232 | ++face_change_count; | |
4233 | ++windows_or_buffers_changed; | |
4234 | } | |
33565969 | 4235 | |
82641697 GM |
4236 | return to; |
4237 | } | |
4238 | ||
4239 | ||
4240 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
4241 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 4242 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
4243 | FRAME being a frame means change the face on that frame. |
4244 | FRAME nil means change the face of the selected frame. | |
4245 | FRAME t means change the default for new frames. | |
4246 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
4247 | for new frames. */) |
4248 | (face, attr, value, frame) | |
82641697 GM |
4249 | Lisp_Object face, attr, value, frame; |
4250 | { | |
4251 | Lisp_Object lface; | |
4252 | Lisp_Object old_value = Qnil; | |
39506348 KH |
4253 | /* Set 1 if ATTR is QCfont. */ |
4254 | int font_attr_p = 0; | |
4255 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 4256 | int font_related_attr_p = 0; |
178c5d9c | 4257 | |
b7826503 PJ |
4258 | CHECK_SYMBOL (face); |
4259 | CHECK_SYMBOL (attr); | |
82641697 | 4260 | |
d1bf13b3 | 4261 | face = resolve_face_name (face, 1); |
c7ae3284 | 4262 | |
628436fb GM |
4263 | /* If FRAME is 0, change face on all frames, and change the |
4264 | default for new frames. */ | |
4265 | if (INTEGERP (frame) && XINT (frame) == 0) | |
4266 | { | |
4267 | Lisp_Object tail; | |
d12d0a9b | 4268 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
4269 | FOR_EACH_FRAME (tail, frame) |
4270 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 4271 | return face; |
628436fb GM |
4272 | } |
4273 | ||
82641697 GM |
4274 | /* Set lface to the Lisp attribute vector of FACE. */ |
4275 | if (EQ (frame, Qt)) | |
0268cef3 CY |
4276 | { |
4277 | lface = lface_from_face_name (NULL, face, 1); | |
67d23e01 CY |
4278 | |
4279 | /* When updating face-new-frame-defaults, we put :ignore-defface | |
4280 | where the caller wants `unspecified'. This forces the frame | |
4281 | defaults to ignore the defface value. Otherwise, the defface | |
4282 | will take effect, which is generally not what is intended. | |
4283 | The value of that attribute will be inherited from some other | |
4284 | face during face merging. See internal_merge_in_global_face. */ | |
0268cef3 | 4285 | if (UNSPECIFIEDP (value)) |
67d23e01 | 4286 | value = Qignore_defface; |
0268cef3 | 4287 | } |
82641697 GM |
4288 | else |
4289 | { | |
4290 | if (NILP (frame)) | |
c0617987 | 4291 | frame = selected_frame; |
178c5d9c | 4292 | |
b7826503 | 4293 | CHECK_LIVE_FRAME (frame); |
82641697 | 4294 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 4295 | |
82641697 GM |
4296 | /* If a frame-local face doesn't exist yet, create one. */ |
4297 | if (NILP (lface)) | |
4298 | lface = Finternal_make_lisp_face (face, frame); | |
4299 | } | |
4300 | ||
4301 | if (EQ (attr, QCfamily)) | |
4302 | { | |
2ff10663 | 4303 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4304 | { |
b7826503 | 4305 | CHECK_STRING (value); |
d5db4077 | 4306 | if (SCHARS (value) == 0) |
82641697 GM |
4307 | signal_error ("Invalid face family", value); |
4308 | } | |
4309 | old_value = LFACE_FAMILY (lface); | |
4310 | LFACE_FAMILY (lface) = value; | |
4311 | font_related_attr_p = 1; | |
4312 | } | |
4313 | else if (EQ (attr, QCheight)) | |
4314 | { | |
2ff10663 | 4315 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4316 | { |
d8055bfc | 4317 | Lisp_Object test; |
2c20458f | 4318 | |
d8055bfc GM |
4319 | test = (EQ (face, Qdefault) |
4320 | ? value | |
4321 | /* The default face must have an absolute size, | |
4322 | otherwise, we do a test merge with a random | |
4323 | height to see if VALUE's ok. */ | |
e1e419ec | 4324 | : merge_face_heights (value, make_number (10), Qnil)); |
d8055bfc GM |
4325 | |
4326 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
4327 | signal_error ("Invalid face height", value); |
4328 | } | |
2c20458f | 4329 | |
82641697 GM |
4330 | old_value = LFACE_HEIGHT (lface); |
4331 | LFACE_HEIGHT (lface) = value; | |
4332 | font_related_attr_p = 1; | |
4333 | } | |
4334 | else if (EQ (attr, QCweight)) | |
4335 | { | |
2ff10663 | 4336 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4337 | { |
b7826503 | 4338 | CHECK_SYMBOL (value); |
82641697 GM |
4339 | if (face_numeric_weight (value) < 0) |
4340 | signal_error ("Invalid face weight", value); | |
4341 | } | |
4342 | old_value = LFACE_WEIGHT (lface); | |
4343 | LFACE_WEIGHT (lface) = value; | |
4344 | font_related_attr_p = 1; | |
4345 | } | |
4346 | else if (EQ (attr, QCslant)) | |
4347 | { | |
2ff10663 | 4348 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4349 | { |
b7826503 | 4350 | CHECK_SYMBOL (value); |
82641697 GM |
4351 | if (face_numeric_slant (value) < 0) |
4352 | signal_error ("Invalid face slant", value); | |
4353 | } | |
4354 | old_value = LFACE_SLANT (lface); | |
4355 | LFACE_SLANT (lface) = value; | |
4356 | font_related_attr_p = 1; | |
4357 | } | |
4358 | else if (EQ (attr, QCunderline)) | |
4359 | { | |
2ff10663 | 4360 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4361 | if ((SYMBOLP (value) |
4362 | && !EQ (value, Qt) | |
4363 | && !EQ (value, Qnil)) | |
4364 | /* Underline color. */ | |
4365 | || (STRINGP (value) | |
d5db4077 | 4366 | && SCHARS (value) == 0)) |
82641697 | 4367 | signal_error ("Invalid face underline", value); |
178c5d9c | 4368 | |
82641697 GM |
4369 | old_value = LFACE_UNDERLINE (lface); |
4370 | LFACE_UNDERLINE (lface) = value; | |
4371 | } | |
4372 | else if (EQ (attr, QCoverline)) | |
4373 | { | |
2ff10663 | 4374 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4375 | if ((SYMBOLP (value) |
4376 | && !EQ (value, Qt) | |
4377 | && !EQ (value, Qnil)) | |
4378 | /* Overline color. */ | |
4379 | || (STRINGP (value) | |
d5db4077 | 4380 | && SCHARS (value) == 0)) |
82641697 | 4381 | signal_error ("Invalid face overline", value); |
178c5d9c | 4382 | |
82641697 GM |
4383 | old_value = LFACE_OVERLINE (lface); |
4384 | LFACE_OVERLINE (lface) = value; | |
4385 | } | |
4386 | else if (EQ (attr, QCstrike_through)) | |
4387 | { | |
2ff10663 | 4388 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4389 | if ((SYMBOLP (value) |
4390 | && !EQ (value, Qt) | |
4391 | && !EQ (value, Qnil)) | |
4392 | /* Strike-through color. */ | |
4393 | || (STRINGP (value) | |
d5db4077 | 4394 | && SCHARS (value) == 0)) |
82641697 | 4395 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 4396 | |
82641697 GM |
4397 | old_value = LFACE_STRIKE_THROUGH (lface); |
4398 | LFACE_STRIKE_THROUGH (lface) = value; | |
4399 | } | |
4400 | else if (EQ (attr, QCbox)) | |
4401 | { | |
4402 | int valid_p; | |
178c5d9c | 4403 | |
82641697 GM |
4404 | /* Allow t meaning a simple box of width 1 in foreground color |
4405 | of the face. */ | |
4406 | if (EQ (value, Qt)) | |
4407 | value = make_number (1); | |
4408 | ||
2ff10663 | 4409 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
82641697 GM |
4410 | valid_p = 1; |
4411 | else if (NILP (value)) | |
4412 | valid_p = 1; | |
4413 | else if (INTEGERP (value)) | |
89624b8b | 4414 | valid_p = XINT (value) != 0; |
82641697 | 4415 | else if (STRINGP (value)) |
d5db4077 | 4416 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4417 | else if (CONSP (value)) |
4418 | { | |
4419 | Lisp_Object tem; | |
178c5d9c | 4420 | |
82641697 GM |
4421 | tem = value; |
4422 | while (CONSP (tem)) | |
4423 | { | |
4424 | Lisp_Object k, v; | |
4425 | ||
4426 | k = XCAR (tem); | |
4427 | tem = XCDR (tem); | |
4428 | if (!CONSP (tem)) | |
4429 | break; | |
4430 | v = XCAR (tem); | |
4431 | tem = XCDR (tem); | |
178c5d9c | 4432 | |
82641697 GM |
4433 | if (EQ (k, QCline_width)) |
4434 | { | |
89624b8b | 4435 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4436 | break; |
4437 | } | |
4438 | else if (EQ (k, QCcolor)) | |
4439 | { | |
91c212f1 | 4440 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
4441 | break; |
4442 | } | |
4443 | else if (EQ (k, QCstyle)) | |
4444 | { | |
4445 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4446 | break; | |
4447 | } | |
4448 | else | |
4449 | break; | |
4450 | } | |
4451 | ||
4452 | valid_p = NILP (tem); | |
4453 | } | |
4454 | else | |
4455 | valid_p = 0; | |
4456 | ||
4457 | if (!valid_p) | |
4458 | signal_error ("Invalid face box", value); | |
178c5d9c | 4459 | |
82641697 GM |
4460 | old_value = LFACE_BOX (lface); |
4461 | LFACE_BOX (lface) = value; | |
4462 | } | |
4463 | else if (EQ (attr, QCinverse_video) | |
4464 | || EQ (attr, QCreverse_video)) | |
4465 | { | |
2ff10663 | 4466 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4467 | { |
b7826503 | 4468 | CHECK_SYMBOL (value); |
82641697 GM |
4469 | if (!EQ (value, Qt) && !NILP (value)) |
4470 | signal_error ("Invalid inverse-video face attribute value", value); | |
4471 | } | |
4472 | old_value = LFACE_INVERSE (lface); | |
4473 | LFACE_INVERSE (lface) = value; | |
4474 | } | |
4475 | else if (EQ (attr, QCforeground)) | |
4476 | { | |
2ff10663 | 4477 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4478 | { |
4479 | /* Don't check for valid color names here because it depends | |
4480 | on the frame (display) whether the color will be valid | |
4481 | when the face is realized. */ | |
b7826503 | 4482 | CHECK_STRING (value); |
d5db4077 | 4483 | if (SCHARS (value) == 0) |
82641697 GM |
4484 | signal_error ("Empty foreground color value", value); |
4485 | } | |
4486 | old_value = LFACE_FOREGROUND (lface); | |
4487 | LFACE_FOREGROUND (lface) = value; | |
4488 | } | |
4489 | else if (EQ (attr, QCbackground)) | |
4490 | { | |
2ff10663 | 4491 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4492 | { |
4493 | /* Don't check for valid color names here because it depends | |
4494 | on the frame (display) whether the color will be valid | |
4495 | when the face is realized. */ | |
b7826503 | 4496 | CHECK_STRING (value); |
d5db4077 | 4497 | if (SCHARS (value) == 0) |
82641697 GM |
4498 | signal_error ("Empty background color value", value); |
4499 | } | |
4500 | old_value = LFACE_BACKGROUND (lface); | |
4501 | LFACE_BACKGROUND (lface) = value; | |
4502 | } | |
4503 | else if (EQ (attr, QCstipple)) | |
4504 | { | |
4505 | #ifdef HAVE_X_WINDOWS | |
2ff10663 | 4506 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4507 | && !NILP (value) |
fef04523 | 4508 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4509 | signal_error ("Invalid stipple attribute", value); |
4510 | old_value = LFACE_STIPPLE (lface); | |
4511 | LFACE_STIPPLE (lface) = value; | |
4512 | #endif /* HAVE_X_WINDOWS */ | |
4513 | } | |
4514 | else if (EQ (attr, QCwidth)) | |
4515 | { | |
2ff10663 | 4516 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4517 | { |
b7826503 | 4518 | CHECK_SYMBOL (value); |
82641697 GM |
4519 | if (face_numeric_swidth (value) < 0) |
4520 | signal_error ("Invalid face width", value); | |
4521 | } | |
4522 | old_value = LFACE_SWIDTH (lface); | |
4523 | LFACE_SWIDTH (lface) = value; | |
4524 | font_related_attr_p = 1; | |
4525 | } | |
763bc839 | 4526 | else if (EQ (attr, QCfont) || EQ (attr, QCfontset)) |
82641697 | 4527 | { |
c3cee013 | 4528 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4529 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4530 | { |
4531 | /* Set font-related attributes of the Lisp face from an XLFD | |
4532 | font name. */ | |
4533 | struct frame *f; | |
4534 | Lisp_Object tmp; | |
82641697 | 4535 | |
96fbd2c6 EZ |
4536 | if (EQ (frame, Qt)) |
4537 | f = SELECTED_FRAME (); | |
4538 | else | |
4539 | f = check_x_frame (frame); | |
178c5d9c | 4540 | |
f4d3bea3 KH |
4541 | #ifdef USE_FONT_BACKEND |
4542 | if (enable_font_backend | |
4543 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) | |
4544 | { | |
db1c10a2 | 4545 | tmp = Fquery_fontset (value, Qnil); |
f4d3bea3 KH |
4546 | if (EQ (attr, QCfontset)) |
4547 | { | |
db1c10a2 | 4548 | if (NILP (tmp)) |
f4d3bea3 | 4549 | signal_error ("Invalid fontset name", value); |
db1c10a2 | 4550 | LFACE_FONTSET (lface) = tmp; |
f4d3bea3 KH |
4551 | } |
4552 | else | |
4553 | { | |
db1c10a2 | 4554 | int fontset; |
f4d3bea3 KH |
4555 | Lisp_Object font_object; |
4556 | ||
db1c10a2 | 4557 | if (! NILP (tmp)) |
f4d3bea3 | 4558 | { |
db1c10a2 KH |
4559 | fontset = fs_query_fontset (tmp, 0); |
4560 | value = fontset_ascii (fontset); | |
f4d3bea3 KH |
4561 | } |
4562 | else | |
4563 | { | |
db1c10a2 | 4564 | fontset = FRAME_FONTSET (f); |
f4d3bea3 | 4565 | } |
db1c10a2 KH |
4566 | font_object = font_open_by_name (f, SDATA (value)); |
4567 | if (NILP (font_object)) | |
4568 | signal_error ("Invalid font", value); | |
f4d3bea3 KH |
4569 | set_lface_from_font_and_fontset (f, lface, font_object, |
4570 | fontset, 1); | |
4571 | } | |
4572 | } | |
4573 | else | |
4574 | #endif /* USE_FONT_BACKEND */ | |
2ff10663 | 4575 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
e67f5ccc RS |
4576 | { |
4577 | CHECK_STRING (value); | |
39506348 | 4578 | |
e67f5ccc RS |
4579 | /* VALUE may be a fontset name or an alias of fontset. In |
4580 | such a case, use the base fontset name. */ | |
4581 | tmp = Fquery_fontset (value, Qnil); | |
4582 | if (!NILP (tmp)) | |
4583 | value = tmp; | |
8f924df7 KH |
4584 | else if (EQ (attr, QCfontset)) |
4585 | signal_error ("Invalid fontset name", value); | |
e67f5ccc | 4586 | |
8f924df7 KH |
4587 | if (EQ (attr, QCfont)) |
4588 | { | |
4589 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
4590 | signal_error ("Invalid font or fontset name", value); | |
4591 | } | |
4592 | else | |
4593 | LFACE_FONTSET (lface) = value; | |
e67f5ccc | 4594 | } |
39506348 | 4595 | |
96fbd2c6 EZ |
4596 | font_attr_p = 1; |
4597 | } | |
c3cee013 | 4598 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4599 | } |
2c20458f MB |
4600 | else if (EQ (attr, QCinherit)) |
4601 | { | |
4602 | Lisp_Object tail; | |
4603 | if (SYMBOLP (value)) | |
4604 | tail = Qnil; | |
4605 | else | |
4606 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4607 | if (!SYMBOLP (XCAR (tail))) | |
4608 | break; | |
4609 | if (NILP (tail)) | |
4610 | LFACE_INHERIT (lface) = value; | |
4611 | else | |
6288c62f | 4612 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4613 | } |
82641697 GM |
4614 | else if (EQ (attr, QCbold)) |
4615 | { | |
4616 | old_value = LFACE_WEIGHT (lface); | |
4617 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4618 | font_related_attr_p = 1; | |
4619 | } | |
4620 | else if (EQ (attr, QCitalic)) | |
4621 | { | |
4622 | old_value = LFACE_SLANT (lface); | |
4623 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4624 | font_related_attr_p = 1; | |
4625 | } | |
4626 | else | |
4627 | signal_error ("Invalid face attribute name", attr); | |
4628 | ||
39506348 | 4629 | if (font_related_attr_p |
2ff10663 | 4630 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
39506348 KH |
4631 | /* If a font-related attribute other than QCfont is specified, the |
4632 | original `font' attribute nor that of default face is useless | |
4633 | to determine a new font. Thus, we set it to nil so that font | |
4634 | selection mechanism doesn't use it. */ | |
4635 | LFACE_FONT (lface) = Qnil; | |
4636 | ||
82641697 GM |
4637 | /* Changing a named face means that all realized faces depending on |
4638 | that face are invalid. Since we cannot tell which realized faces | |
4639 | depend on the face, make sure they are all removed. This is done | |
4640 | by incrementing face_change_count. The next call to | |
4641 | init_iterator will then free realized faces. */ | |
4642 | if (!EQ (frame, Qt) | |
46b00436 | 4643 | && NILP (Fget (face, Qface_no_inherit)) |
82641697 | 4644 | && (EQ (attr, QCfont) |
763bc839 | 4645 | || EQ (attr, QCfontset) |
82641697 GM |
4646 | || NILP (Fequal (old_value, value)))) |
4647 | { | |
4648 | ++face_change_count; | |
4649 | ++windows_or_buffers_changed; | |
4650 | } | |
4651 | ||
2ff10663 | 4652 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4653 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4654 | { |
4655 | Lisp_Object param; | |
4656 | ||
4657 | param = Qnil; | |
178c5d9c | 4658 | |
8bd201d6 GM |
4659 | if (EQ (face, Qdefault)) |
4660 | { | |
b9c769f8 | 4661 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4662 | /* Changed font-related attributes of the `default' face are |
4663 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4664 | if (FRAMEP (frame) |
4665 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4666 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4667 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4668 | else |
4669 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4670 | ||
4671 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4672 | param = Qforeground_color; |
4673 | else if (EQ (attr, QCbackground)) | |
4674 | param = Qbackground_color; | |
4675 | } | |
b9c769f8 | 4676 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4677 | #ifndef WINDOWSNT |
8bd201d6 GM |
4678 | else if (EQ (face, Qscroll_bar)) |
4679 | { | |
4680 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4681 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4682 | if (EQ (attr, QCforeground)) | |
4683 | param = Qscroll_bar_foreground; | |
4684 | else if (EQ (attr, QCbackground)) | |
4685 | param = Qscroll_bar_background; | |
4686 | } | |
d12d0a9b | 4687 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4688 | else if (EQ (face, Qborder)) |
4689 | { | |
4690 | /* Changing background color of `border' sets frame parameter | |
4691 | `border-color'. */ | |
4692 | if (EQ (attr, QCbackground)) | |
4693 | param = Qborder_color; | |
4694 | } | |
4695 | else if (EQ (face, Qcursor)) | |
4696 | { | |
4697 | /* Changing background color of `cursor' sets frame parameter | |
4698 | `cursor-color'. */ | |
4699 | if (EQ (attr, QCbackground)) | |
4700 | param = Qcursor_color; | |
4701 | } | |
4702 | else if (EQ (face, Qmouse)) | |
4703 | { | |
4704 | /* Changing background color of `mouse' sets frame parameter | |
4705 | `mouse-color'. */ | |
4706 | if (EQ (attr, QCbackground)) | |
4707 | param = Qmouse_color; | |
4708 | } | |
b9c769f8 | 4709 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4710 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4711 | { |
4712 | /* Indicate that we have to update the menu bar when | |
4713 | realizing faces on FRAME. FRAME t change the | |
4714 | default for new frames. We do this by setting | |
4715 | setting the flag in new face caches */ | |
4716 | if (FRAMEP (frame)) | |
4717 | { | |
4718 | struct frame *f = XFRAME (frame); | |
4719 | if (FRAME_FACE_CACHE (f) == NULL) | |
4720 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4721 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4722 | } | |
4723 | else | |
4724 | menu_face_changed_default = 1; | |
4725 | } | |
8bd201d6 | 4726 | |
39506348 | 4727 | if (!NILP (param)) |
ab8469eb PJ |
4728 | { |
4729 | if (EQ (frame, Qt)) | |
4730 | /* Update `default-frame-alist', which is used for new frames. */ | |
4731 | { | |
4732 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4733 | } | |
4734 | else | |
4735 | /* Update the current frame's parameters. */ | |
4736 | { | |
4737 | Lisp_Object cons; | |
4738 | cons = XCAR (Vparam_value_alist); | |
4739 | XSETCAR (cons, param); | |
4740 | XSETCDR (cons, value); | |
4741 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4742 | } | |
4743 | } | |
8bd201d6 | 4744 | } |
82641697 | 4745 | |
82641697 GM |
4746 | return face; |
4747 | } | |
4748 | ||
4749 | ||
c3cee013 | 4750 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4751 | |
39506348 | 4752 | /* Set the `font' frame parameter of FRAME determined from `default' |
763bc839 | 4753 | face attributes LFACE. If a font name is explicitely |
39506348 KH |
4754 | specfied in LFACE, use it as is. Otherwise, determine a font name |
4755 | from the other font-related atrributes of LFACE. In that case, if | |
4756 | there's no matching font, signals an error. */ | |
82641697 GM |
4757 | |
4758 | static void | |
4759 | set_font_frame_param (frame, lface) | |
4760 | Lisp_Object frame, lface; | |
4761 | { | |
4762 | struct frame *f = XFRAME (frame); | |
82641697 | 4763 | |
482cca61 | 4764 | if (FRAME_WINDOW_P (f)) |
82641697 | 4765 | { |
482cca61 GM |
4766 | Lisp_Object font_name; |
4767 | char *font; | |
177c0ea7 | 4768 | |
482cca61 GM |
4769 | if (STRINGP (LFACE_FONT (lface))) |
4770 | font_name = LFACE_FONT (lface); | |
426b2119 KH |
4771 | #ifdef USE_FONT_BACKEND |
4772 | else if (enable_font_backend) | |
4773 | { | |
f4d3bea3 KH |
4774 | /* We set FONT_NAME to a font-object. */ |
4775 | if (FONT_OBJECT_P (LFACE_FONT (lface))) | |
4776 | font_name = LFACE_FONT (lface); | |
4777 | else | |
4778 | { | |
6e846fdc | 4779 | font_name = font_find_for_lface (f, &AREF (lface, 0), Qnil, -1); |
f4d3bea3 KH |
4780 | if (NILP (font_name)) |
4781 | error ("No font matches the specified attribute"); | |
de921524 KH |
4782 | font_name = font_open_for_lface (f, font_name, &AREF (lface, 0), |
4783 | Qnil); | |
f4d3bea3 KH |
4784 | if (NILP (font_name)) |
4785 | error ("No font matches the specified attribute"); | |
4786 | } | |
426b2119 KH |
4787 | } |
4788 | #endif | |
482cca61 GM |
4789 | else |
4790 | { | |
4791 | /* Choose a font name that reflects LFACE's attributes and has | |
4792 | the registry and encoding pattern specified in the default | |
4793 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
8f924df7 | 4794 | font = choose_face_font (f, XVECTOR (lface)->contents, Qnil, NULL); |
482cca61 GM |
4795 | if (!font) |
4796 | error ("No font matches the specified attribute"); | |
4797 | font_name = build_string (font); | |
4798 | xfree (font); | |
4799 | } | |
177c0ea7 | 4800 | |
a5f696ac | 4801 | f->default_face_done_p = 0; |
482cca61 GM |
4802 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4803 | } | |
82641697 GM |
4804 | } |
4805 | ||
4806 | ||
8bd201d6 GM |
4807 | /* Update the corresponding face when frame parameter PARAM on frame F |
4808 | has been assigned the value NEW_VALUE. */ | |
4809 | ||
4810 | void | |
4811 | update_face_from_frame_parameter (f, param, new_value) | |
4812 | struct frame *f; | |
4813 | Lisp_Object param, new_value; | |
4814 | { | |
46b00436 | 4815 | Lisp_Object face = Qnil; |
8bd201d6 GM |
4816 | Lisp_Object lface; |
4817 | ||
4818 | /* If there are no faces yet, give up. This is the case when called | |
4819 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4820 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4821 | if (NILP (f->face_alist)) |
4822 | return; | |
178c5d9c | 4823 | |
8bd201d6 GM |
4824 | if (EQ (param, Qforeground_color)) |
4825 | { | |
46b00436 KS |
4826 | face = Qdefault; |
4827 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4828 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
4829 | ? new_value : Qunspecified); | |
4830 | realize_basic_faces (f); | |
4831 | } | |
4832 | else if (EQ (param, Qbackground_color)) | |
4833 | { | |
92610620 GM |
4834 | Lisp_Object frame; |
4835 | ||
4836 | /* Changing the background color might change the background | |
c20577bc JL |
4837 | mode, so that we have to load new defface specs. |
4838 | Call frame-set-background-mode to do that. */ | |
92610620 | 4839 | XSETFRAME (frame, f); |
c20577bc | 4840 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 4841 | |
46b00436 KS |
4842 | face = Qdefault; |
4843 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4844 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4845 | ? new_value : Qunspecified); | |
4846 | realize_basic_faces (f); | |
4847 | } | |
46b00436 | 4848 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 4849 | { |
46b00436 KS |
4850 | face = Qborder; |
4851 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4852 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4853 | ? new_value : Qunspecified); | |
4854 | } | |
4855 | else if (EQ (param, Qcursor_color)) | |
4856 | { | |
46b00436 KS |
4857 | face = Qcursor; |
4858 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4859 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4860 | ? new_value : Qunspecified); | |
4861 | } | |
4862 | else if (EQ (param, Qmouse_color)) | |
4863 | { | |
46b00436 KS |
4864 | face = Qmouse; |
4865 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4866 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4867 | ? new_value : Qunspecified); | |
4868 | } | |
46b00436 KS |
4869 | |
4870 | /* Changing a named face means that all realized faces depending on | |
4871 | that face are invalid. Since we cannot tell which realized faces | |
4872 | depend on the face, make sure they are all removed. This is done | |
4873 | by incrementing face_change_count. The next call to | |
4874 | init_iterator will then free realized faces. */ | |
4875 | if (!NILP (face) | |
4876 | && NILP (Fget (face, Qface_no_inherit))) | |
4877 | { | |
4878 | ++face_change_count; | |
4879 | ++windows_or_buffers_changed; | |
4880 | } | |
8bd201d6 GM |
4881 | } |
4882 | ||
4883 | ||
82641697 GM |
4884 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4885 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4886 | doesn't take a frame argument. */ | |
4887 | ||
4888 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4889 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4890 | (resource, class, frame) | |
82641697 GM |
4891 | Lisp_Object resource, class, frame; |
4892 | { | |
c3cee013 | 4893 | Lisp_Object value = Qnil; |
b7826503 PJ |
4894 | CHECK_STRING (resource); |
4895 | CHECK_STRING (class); | |
4896 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4897 | BLOCK_INPUT; |
4898 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4899 | resource, class, Qnil, Qnil); | |
4900 | UNBLOCK_INPUT; | |
4901 | return value; | |
4902 | } | |
4903 | ||
4904 | ||
4905 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4906 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4907 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4908 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4909 | |
82641697 GM |
4910 | static Lisp_Object |
4911 | face_boolean_x_resource_value (value, signal_p) | |
4912 | Lisp_Object value; | |
4913 | int signal_p; | |
4914 | { | |
4915 | Lisp_Object result = make_number (0); | |
4916 | ||
4917 | xassert (STRINGP (value)); | |
178c5d9c | 4918 | |
d5db4077 KR |
4919 | if (xstricmp (SDATA (value), "on") == 0 |
4920 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4921 | result = Qt; |
d5db4077 KR |
4922 | else if (xstricmp (SDATA (value), "off") == 0 |
4923 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4924 | result = Qnil; |
d5db4077 | 4925 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4926 | result = Qunspecified; |
4927 | else if (signal_p) | |
4928 | signal_error ("Invalid face attribute value from X resource", value); | |
4929 | ||
4930 | return result; | |
4931 | } | |
4932 | ||
4933 | ||
4934 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4935 | Finternal_set_lisp_face_attribute_from_resource, | |
4936 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4937 | 3, 4, 0, doc: /* */) |
4938 | (face, attr, value, frame) | |
82641697 GM |
4939 | Lisp_Object face, attr, value, frame; |
4940 | { | |
b7826503 PJ |
4941 | CHECK_SYMBOL (face); |
4942 | CHECK_SYMBOL (attr); | |
4943 | CHECK_STRING (value); | |
82641697 | 4944 | |
d5db4077 | 4945 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4946 | value = Qunspecified; |
4947 | else if (EQ (attr, QCheight)) | |
4948 | { | |
4949 | value = Fstring_to_number (value, make_number (10)); | |
4950 | if (XINT (value) <= 0) | |
4951 | signal_error ("Invalid face height from X resource", value); | |
4952 | } | |
4953 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4954 | value = face_boolean_x_resource_value (value, 1); | |
4955 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4956 | value = intern (SDATA (value)); |
82641697 GM |
4957 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4958 | value = face_boolean_x_resource_value (value, 1); | |
4959 | else if (EQ (attr, QCunderline) | |
4960 | || EQ (attr, QCoverline) | |
27188d11 | 4961 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4962 | { |
4963 | Lisp_Object boolean_value; | |
4964 | ||
4965 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4966 | VALUE does NOT specify a color. */ | |
4967 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4968 | if (SYMBOLP (boolean_value)) | |
4969 | value = boolean_value; | |
4970 | } | |
0ad040ff | 4971 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
27188d11 | 4972 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
82641697 GM |
4973 | |
4974 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4975 | } | |
4976 | ||
c3cee013 | 4977 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4978 | |
c7ae3284 GM |
4979 | \f |
4980 | /*********************************************************************** | |
4981 | Menu face | |
4982 | ***********************************************************************/ | |
4983 | ||
bce72079 | 4984 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4985 | |
bce72079 GM |
4986 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4987 | ||
4988 | static void | |
4989 | x_update_menu_appearance (f) | |
c7ae3284 | 4990 | struct frame *f; |
c7ae3284 | 4991 | { |
a03ad468 | 4992 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4993 | XrmDatabase rdb; |
178c5d9c | 4994 | |
bce72079 GM |
4995 | if (dpyinfo |
4996 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4997 | rdb != NULL)) | |
c7ae3284 | 4998 | { |
bce72079 GM |
4999 | char line[512]; |
5000 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
5001 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 5002 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 5003 | int changed_p = 0; |
8ad582ac GM |
5004 | #ifdef USE_MOTIF |
5005 | const char *popup_path = "popup_menu"; | |
5006 | #else | |
5007 | const char *popup_path = "menu.popup"; | |
5008 | #endif | |
177c0ea7 | 5009 | |
bce72079 GM |
5010 | if (STRINGP (LFACE_FOREGROUND (lface))) |
5011 | { | |
8ad582ac GM |
5012 | sprintf (line, "%s.%s*foreground: %s", |
5013 | myname, popup_path, | |
d5db4077 | 5014 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
5015 | XrmPutLineResource (&rdb, line); |
5016 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 5017 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
5018 | XrmPutLineResource (&rdb, line); |
5019 | changed_p = 1; | |
5020 | } | |
178c5d9c | 5021 | |
bce72079 GM |
5022 | if (STRINGP (LFACE_BACKGROUND (lface))) |
5023 | { | |
8ad582ac GM |
5024 | sprintf (line, "%s.%s*background: %s", |
5025 | myname, popup_path, | |
d5db4077 | 5026 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5027 | XrmPutLineResource (&rdb, line); |
5028 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 5029 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
5030 | XrmPutLineResource (&rdb, line); |
5031 | changed_p = 1; | |
5032 | } | |
177c0ea7 | 5033 | |
bce72079 GM |
5034 | if (face->font_name |
5035 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
5036 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
5037 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
5038 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5039 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
5040 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
5041 | { | |
a03ad468 | 5042 | #ifdef USE_MOTIF |
bce72079 | 5043 | const char *suffix = "List"; |
211f2210 | 5044 | Bool motif = True; |
a2d7e722 JD |
5045 | #else |
5046 | #if defined HAVE_X_I18N | |
5047 | ||
5048 | const char *suffix = "Set"; | |
a03ad468 | 5049 | #else |
bce72079 | 5050 | const char *suffix = ""; |
a2d7e722 | 5051 | #endif |
211f2210 | 5052 | Bool motif = False; |
2defe37f | 5053 | #endif |
211f2210 | 5054 | #if defined HAVE_X_I18N |
2defe37f SM |
5055 | extern char *xic_create_fontsetname |
5056 | P_ ((char *base_fontname, Bool motif)); | |
211f2210 | 5057 | char *fontsetname = xic_create_fontsetname (face->font_name, motif); |
2defe37f SM |
5058 | #else |
5059 | char *fontsetname = face->font_name; | |
bce72079 GM |
5060 | #endif |
5061 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
2defe37f | 5062 | myname, suffix, fontsetname); |
bce72079 | 5063 | XrmPutLineResource (&rdb, line); |
2eddf899 | 5064 | sprintf (line, "%s.%s*font%s: %s", |
2defe37f | 5065 | myname, popup_path, suffix, fontsetname); |
bce72079 GM |
5066 | XrmPutLineResource (&rdb, line); |
5067 | changed_p = 1; | |
211f2210 SM |
5068 | if (fontsetname != face->font_name) |
5069 | xfree (fontsetname); | |
bce72079 | 5070 | } |
c7ae3284 | 5071 | |
bce72079 | 5072 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 5073 | free_frame_menubar (f); |
c7ae3284 GM |
5074 | } |
5075 | } | |
5076 | ||
bce72079 | 5077 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
5078 | |
5079 | ||
177c0ea7 | 5080 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
5081 | Sface_attribute_relative_p, |
5082 | 2, 2, 0, | |
2d6228e7 RS |
5083 | doc: /* Check whether a face attribute value is relative. |
5084 | Specifically, this function returns t if the attribute ATTRIBUTE | |
5085 | with the value VALUE is relative. | |
5086 | ||
5087 | A relative value is one that doesn't entirely override whatever is | |
5088 | inherited from another face. For most possible attributes, | |
5089 | the only relative value that users see is `unspecified'. | |
5090 | However, for :height, floating point values are also relative. */) | |
cdfaafa9 | 5091 | (attribute, value) |
d0930289 | 5092 | Lisp_Object attribute, value; |
cdfaafa9 | 5093 | { |
05338727 | 5094 | if (EQ (value, Qunspecified) || (EQ (value, Qignore_defface))) |
cdfaafa9 MB |
5095 | return Qt; |
5096 | else if (EQ (attribute, QCheight)) | |
5097 | return INTEGERP (value) ? Qnil : Qt; | |
5098 | else | |
5099 | return Qnil; | |
5100 | } | |
5101 | ||
5102 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
5103 | 3, 3, 0, | |
5104 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
5105 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
5106 | the result will be absolute, otherwise it will be relative. */) | |
5107 | (attribute, value1, value2) | |
5108 | Lisp_Object attribute, value1, value2; | |
5109 | { | |
05338727 | 5110 | if (EQ (value1, Qunspecified) || EQ (value1, Qignore_defface)) |
cdfaafa9 MB |
5111 | return value2; |
5112 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 5113 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
5114 | else |
5115 | return value1; | |
5116 | } | |
5117 | ||
82641697 GM |
5118 | |
5119 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
5120 | Sinternal_get_lisp_face_attribute, | |
5121 | 2, 3, 0, | |
7ee72033 | 5122 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
5123 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
5124 | face attribute name, signal an error. | |
7fc92635 JB |
5125 | If the optional argument FRAME is given, report on face SYMBOL in that |
5126 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 MB |
5127 | frames). If FRAME is omitted or nil, use the selected frame. */) |
5128 | (symbol, keyword, frame) | |
82641697 GM |
5129 | Lisp_Object symbol, keyword, frame; |
5130 | { | |
5131 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 5132 | |
b7826503 PJ |
5133 | CHECK_SYMBOL (symbol); |
5134 | CHECK_SYMBOL (keyword); | |
82641697 GM |
5135 | |
5136 | if (EQ (frame, Qt)) | |
5137 | lface = lface_from_face_name (NULL, symbol, 1); | |
5138 | else | |
5139 | { | |
5140 | if (NILP (frame)) | |
c0617987 | 5141 | frame = selected_frame; |
b7826503 | 5142 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5143 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
5144 | } | |
5145 | ||
5146 | if (EQ (keyword, QCfamily)) | |
5147 | value = LFACE_FAMILY (lface); | |
5148 | else if (EQ (keyword, QCheight)) | |
5149 | value = LFACE_HEIGHT (lface); | |
5150 | else if (EQ (keyword, QCweight)) | |
5151 | value = LFACE_WEIGHT (lface); | |
5152 | else if (EQ (keyword, QCslant)) | |
5153 | value = LFACE_SLANT (lface); | |
5154 | else if (EQ (keyword, QCunderline)) | |
5155 | value = LFACE_UNDERLINE (lface); | |
5156 | else if (EQ (keyword, QCoverline)) | |
5157 | value = LFACE_OVERLINE (lface); | |
5158 | else if (EQ (keyword, QCstrike_through)) | |
5159 | value = LFACE_STRIKE_THROUGH (lface); | |
5160 | else if (EQ (keyword, QCbox)) | |
5161 | value = LFACE_BOX (lface); | |
5162 | else if (EQ (keyword, QCinverse_video) | |
5163 | || EQ (keyword, QCreverse_video)) | |
5164 | value = LFACE_INVERSE (lface); | |
5165 | else if (EQ (keyword, QCforeground)) | |
5166 | value = LFACE_FOREGROUND (lface); | |
5167 | else if (EQ (keyword, QCbackground)) | |
5168 | value = LFACE_BACKGROUND (lface); | |
5169 | else if (EQ (keyword, QCstipple)) | |
5170 | value = LFACE_STIPPLE (lface); | |
5171 | else if (EQ (keyword, QCwidth)) | |
5172 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
5173 | else if (EQ (keyword, QCinherit)) |
5174 | value = LFACE_INHERIT (lface); | |
39506348 KH |
5175 | else if (EQ (keyword, QCfont)) |
5176 | value = LFACE_FONT (lface); | |
763bc839 KH |
5177 | else if (EQ (keyword, QCfontset)) |
5178 | value = LFACE_FONTSET (lface); | |
82641697 GM |
5179 | else |
5180 | signal_error ("Invalid face attribute name", keyword); | |
5181 | ||
0268cef3 CY |
5182 | if (IGNORE_DEFFACE_P (value)) |
5183 | return Qunspecified; | |
5184 | ||
82641697 GM |
5185 | return value; |
5186 | } | |
5187 | ||
5188 | ||
5189 | DEFUN ("internal-lisp-face-attribute-values", | |
5190 | Finternal_lisp_face_attribute_values, | |
5191 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
5192 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
5193 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
5194 | (attr) | |
82641697 GM |
5195 | Lisp_Object attr; |
5196 | { | |
5197 | Lisp_Object result = Qnil; | |
178c5d9c | 5198 | |
b7826503 | 5199 | CHECK_SYMBOL (attr); |
178c5d9c | 5200 | |
82641697 GM |
5201 | if (EQ (attr, QCweight) |
5202 | || EQ (attr, QCslant) | |
5203 | || EQ (attr, QCwidth)) | |
5204 | { | |
5205 | /* Extract permissible symbols from tables. */ | |
5206 | struct table_entry *table; | |
5207 | int i, dim; | |
178c5d9c | 5208 | |
82641697 GM |
5209 | if (EQ (attr, QCweight)) |
5210 | table = weight_table, dim = DIM (weight_table); | |
5211 | else if (EQ (attr, QCslant)) | |
5212 | table = slant_table, dim = DIM (slant_table); | |
5213 | else | |
5214 | table = swidth_table, dim = DIM (swidth_table); | |
5215 | ||
5216 | for (i = 0; i < dim; ++i) | |
5217 | { | |
5218 | Lisp_Object symbol = *table[i].symbol; | |
5219 | Lisp_Object tail = result; | |
5220 | ||
5221 | while (!NILP (tail) | |
5222 | && !EQ (XCAR (tail), symbol)) | |
5223 | tail = XCDR (tail); | |
5224 | ||
5225 | if (NILP (tail)) | |
5226 | result = Fcons (symbol, result); | |
5227 | } | |
5228 | } | |
5229 | else if (EQ (attr, QCunderline)) | |
5230 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5231 | else if (EQ (attr, QCoverline)) | |
5232 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5233 | else if (EQ (attr, QCstrike_through)) | |
5234 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5235 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
5236 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
5237 | ||
5238 | return result; | |
5239 | } | |
178c5d9c | 5240 | |
82641697 GM |
5241 | |
5242 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 5243 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 5244 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
5245 | Default face attributes override any local face attributes. */) |
5246 | (face, frame) | |
82641697 GM |
5247 | Lisp_Object face, frame; |
5248 | { | |
aad40737 MB |
5249 | int i; |
5250 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
5251 | ||
b7826503 | 5252 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
5253 | global_lface = lface_from_face_name (NULL, face, 1); |
5254 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
5255 | if (NILP (local_lface)) | |
5256 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 5257 | |
cec33c90 SM |
5258 | /* Make every specified global attribute override the local one. |
5259 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
5260 | the local frame is defined from default specs in `face-defface-spec' | |
5261 | and those should be overridden by global settings. Hence the strange | |
5262 | "global before local" priority. */ | |
aad40737 MB |
5263 | lvec = XVECTOR (local_lface)->contents; |
5264 | gvec = XVECTOR (global_lface)->contents; | |
5265 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
5266 | if (! UNSPECIFIEDP (gvec[i])) | |
27d744ae YM |
5267 | { |
5268 | if (IGNORE_DEFFACE_P (gvec[i])) | |
5269 | lvec[i] = Qunspecified; | |
5270 | else | |
5271 | lvec[i] = gvec[i]; | |
5272 | } | |
334a2e2a GM |
5273 | |
5274 | return Qnil; | |
82641697 GM |
5275 | } |
5276 | ||
5277 | ||
5278 | /* The following function is implemented for compatibility with 20.2. | |
5279 | The function is used in x-resolve-fonts when it is asked to | |
5280 | return fonts with the same size as the font of a face. This is | |
5281 | done in fontset.el. */ | |
5282 | ||
2db4bfe5 | 5283 | DEFUN ("face-font", Fface_font, Sface_font, 1, 3, 0, |
e3cd9e7f | 5284 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
2db4bfe5 | 5285 | The font name is, by default, for ASCII characters. |
228299fa GM |
5286 | If the optional argument FRAME is given, report on face FACE in that frame. |
5287 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
5288 | The font default for a face is either nil, or a list | |
5289 | of the form (bold), (italic) or (bold italic). | |
2db4bfe5 KH |
5290 | If FRAME is omitted or nil, use the selected frame. And, in this case, |
5291 | if the optional third argument CHARACTER is given, | |
5292 | return the font name used for CHARACTER. */) | |
5293 | (face, frame, character) | |
5294 | Lisp_Object face, frame, character; | |
82641697 GM |
5295 | { |
5296 | if (EQ (frame, Qt)) | |
5297 | { | |
5298 | Lisp_Object result = Qnil; | |
5299 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
5300 | ||
5301 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5302 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
5303 | result = Fcons (Qbold, result); | |
178c5d9c | 5304 | |
0f2c6573 | 5305 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
5306 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
5307 | result = Fcons (Qitalic, result); | |
178c5d9c | 5308 | |
82641697 GM |
5309 | return result; |
5310 | } | |
5311 | else | |
5312 | { | |
5313 | struct frame *f = frame_or_selected_frame (frame, 1); | |
000fc2b1 | 5314 | int face_id = lookup_named_face (f, face, 1); |
82641697 | 5315 | struct face *face = FACE_FROM_ID (f, face_id); |
2db4bfe5 KH |
5316 | |
5317 | if (! face) | |
5318 | return Qnil; | |
a1a552b3 | 5319 | #ifdef HAVE_WINDOW_SYSTEM |
75dad34a | 5320 | if (FRAME_WINDOW_P (f) && !NILP (character)) |
a1a552b3 KH |
5321 | { |
5322 | CHECK_CHARACTER (character); | |
5323 | face_id = FACE_FOR_CHAR (f, face, XINT (character), -1, Qnil); | |
5324 | face = FACE_FROM_ID (f, face_id); | |
5325 | return (face->font && face->font_name | |
5326 | ? build_string (face->font_name) | |
5327 | : Qnil); | |
5328 | } | |
5329 | #endif | |
5330 | return build_string (face->font_name); | |
82641697 GM |
5331 | } |
5332 | } | |
5333 | ||
5334 | ||
9717e36c | 5335 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
5336 | all attributes are `equal'. Tries to be fast because this function |
5337 | is called quite often. */ | |
5338 | ||
5339 | static INLINE int | |
9717e36c | 5340 | face_attr_equal_p (v1, v2) |
3ebc0939 | 5341 | Lisp_Object v1, v2; |
82641697 | 5342 | { |
9717e36c MB |
5343 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
5344 | and the other is specified. */ | |
5345 | if (XTYPE (v1) != XTYPE (v2)) | |
5346 | return 0; | |
82641697 | 5347 | |
9717e36c MB |
5348 | if (EQ (v1, v2)) |
5349 | return 1; | |
82641697 | 5350 | |
9717e36c MB |
5351 | switch (XTYPE (v1)) |
5352 | { | |
5353 | case Lisp_String: | |
5354 | if (SBYTES (v1) != SBYTES (v2)) | |
5355 | return 0; | |
82641697 | 5356 | |
9717e36c | 5357 | return bcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 5358 | |
9717e36c MB |
5359 | case Lisp_Int: |
5360 | case Lisp_Symbol: | |
5361 | return 0; | |
178c5d9c | 5362 | |
9717e36c MB |
5363 | default: |
5364 | return !NILP (Fequal (v1, v2)); | |
82641697 | 5365 | } |
9717e36c MB |
5366 | } |
5367 | ||
5368 | ||
5369 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
5370 | all attributes are `equal'. Tries to be fast because this function | |
5371 | is called quite often. */ | |
5372 | ||
5373 | static INLINE int | |
5374 | lface_equal_p (v1, v2) | |
5375 | Lisp_Object *v1, *v2; | |
5376 | { | |
5377 | int i, equal_p = 1; | |
5378 | ||
5379 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
5380 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 5381 | |
82641697 GM |
5382 | return equal_p; |
5383 | } | |
5384 | ||
5385 | ||
5386 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
5387 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 5388 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
5389 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
5390 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 MB |
5391 | If FRAME is omitted or nil, use the selected frame. */) |
5392 | (face1, face2, frame) | |
82641697 GM |
5393 | Lisp_Object face1, face2, frame; |
5394 | { | |
5395 | int equal_p; | |
7b953c9c | 5396 | struct frame *f; |
82641697 | 5397 | Lisp_Object lface1, lface2; |
178c5d9c | 5398 | |
7b953c9c MB |
5399 | if (EQ (frame, Qt)) |
5400 | f = NULL; | |
5401 | else | |
5402 | /* Don't use check_x_frame here because this function is called | |
5403 | before X frames exist. At that time, if FRAME is nil, | |
5404 | selected_frame will be used which is the frame dumped with | |
5405 | Emacs. That frame is not an X frame. */ | |
5406 | f = frame_or_selected_frame (frame, 2); | |
5407 | ||
03f11322 JB |
5408 | lface1 = lface_from_face_name (f, face1, 1); |
5409 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
5410 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
5411 | XVECTOR (lface2)->contents); | |
5412 | return equal_p ? Qt : Qnil; | |
5413 | } | |
5414 | ||
178c5d9c | 5415 | |
82641697 GM |
5416 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
5417 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 5418 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
5419 | If the optional argument FRAME is given, report on face FACE in that frame. |
5420 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
5421 | If FRAME is omitted or nil, use the selected frame. */) |
5422 | (face, frame) | |
82641697 GM |
5423 | Lisp_Object face, frame; |
5424 | { | |
5425 | struct frame *f; | |
5426 | Lisp_Object lface; | |
5427 | int i; | |
5428 | ||
5429 | if (NILP (frame)) | |
c0617987 | 5430 | frame = selected_frame; |
b7826503 | 5431 | CHECK_LIVE_FRAME (frame); |
c0617987 | 5432 | f = XFRAME (frame); |
178c5d9c | 5433 | |
82641697 GM |
5434 | if (EQ (frame, Qt)) |
5435 | lface = lface_from_face_name (NULL, face, 1); | |
5436 | else | |
5437 | lface = lface_from_face_name (f, face, 1); | |
5438 | ||
5439 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 5440 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 5441 | break; |
178c5d9c | 5442 | |
82641697 GM |
5443 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
5444 | } | |
5445 | ||
5446 | ||
5447 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 5448 | 0, 1, 0, |
7ee72033 MB |
5449 | doc: /* Return an alist of frame-local faces defined on FRAME. |
5450 | For internal use only. */) | |
5451 | (frame) | |
82641697 GM |
5452 | Lisp_Object frame; |
5453 | { | |
5454 | struct frame *f = frame_or_selected_frame (frame, 0); | |
5455 | return f->face_alist; | |
5456 | } | |
5457 | ||
5458 | ||
5459 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
5460 | below in computing a hash value for a Lisp face. */ | |
5461 | ||
5462 | static INLINE unsigned | |
5463 | hash_string_case_insensitive (string) | |
5464 | Lisp_Object string; | |
5465 | { | |
53c208f6 | 5466 | const unsigned char *s; |
82641697 GM |
5467 | unsigned hash = 0; |
5468 | xassert (STRINGP (string)); | |
d5db4077 | 5469 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
5470 | hash = (hash << 1) ^ tolower (*s); |
5471 | return hash; | |
5472 | } | |
5473 | ||
5474 | ||
5475 | /* Return a hash code for face attribute vector V. */ | |
5476 | ||
5477 | static INLINE unsigned | |
5478 | lface_hash (v) | |
5479 | Lisp_Object *v; | |
5480 | { | |
5481 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
5482 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
5483 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
a2bc5bdd SM |
5484 | ^ XHASH (v[LFACE_WEIGHT_INDEX]) |
5485 | ^ XHASH (v[LFACE_SLANT_INDEX]) | |
5486 | ^ XHASH (v[LFACE_SWIDTH_INDEX]) | |
5487 | ^ XHASH (v[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
5488 | } |
5489 | ||
5490 | ||
5491 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
5492 | considering charsets/registries). They do if they specify the same | |
763bc839 KH |
5493 | family, point size, weight, width, slant, font, and fontset. Both |
5494 | LFACE1 and LFACE2 must be fully-specified. */ | |
82641697 GM |
5495 | |
5496 | static INLINE int | |
5497 | lface_same_font_attributes_p (lface1, lface2) | |
5498 | Lisp_Object *lface1, *lface2; | |
5499 | { | |
5500 | xassert (lface_fully_specified_p (lface1) | |
5501 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
5502 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
5503 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 5504 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 5505 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 5506 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 5507 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
5508 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
5509 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
5510 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 5511 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
8f924df7 KH |
5512 | && ! xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
5513 | SDATA (lface2[LFACE_FONT_INDEX])))) | |
763bc839 KH |
5514 | && (EQ (lface1[LFACE_FONTSET_INDEX], lface2[LFACE_FONTSET_INDEX]) |
5515 | || (STRINGP (lface1[LFACE_FONTSET_INDEX]) | |
5516 | && STRINGP (lface2[LFACE_FONTSET_INDEX]) | |
8f924df7 KH |
5517 | && ! xstricmp (SDATA (lface1[LFACE_FONTSET_INDEX]), |
5518 | SDATA (lface2[LFACE_FONTSET_INDEX])))) | |
763bc839 | 5519 | ); |
82641697 GM |
5520 | } |
5521 | ||
5522 | ||
5523 | \f | |
5524 | /*********************************************************************** | |
5525 | Realized Faces | |
5526 | ***********************************************************************/ | |
5527 | ||
5528 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 5529 | vector ATTR. */ |
82641697 GM |
5530 | |
5531 | static struct face * | |
39506348 | 5532 | make_realized_face (attr) |
82641697 | 5533 | Lisp_Object *attr; |
82641697 GM |
5534 | { |
5535 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5536 | bzero (face, sizeof *face); | |
39506348 | 5537 | face->ascii_face = face; |
82641697 GM |
5538 | bcopy (attr, face->lface, sizeof face->lface); |
5539 | return face; | |
5540 | } | |
5541 | ||
5542 | ||
5543 | /* Free realized face FACE, including its X resources. FACE may | |
5544 | be null. */ | |
5545 | ||
81b39386 | 5546 | void |
82641697 GM |
5547 | free_realized_face (f, face) |
5548 | struct frame *f; | |
5549 | struct face *face; | |
5550 | { | |
5551 | if (face) | |
5552 | { | |
c3cee013 JR |
5553 | #ifdef HAVE_WINDOW_SYSTEM |
5554 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5555 | { |
39506348 KH |
5556 | /* Free fontset of FACE if it is ASCII face. */ |
5557 | if (face->fontset >= 0 && face == face->ascii_face) | |
5558 | free_face_fontset (f, face); | |
82641697 GM |
5559 | if (face->gc) |
5560 | { | |
985773c9 | 5561 | BLOCK_INPUT; |
426b2119 KH |
5562 | #ifdef USE_FONT_BACKEND |
5563 | if (enable_font_backend && face->font_info) | |
5564 | font_done_for_face (f, face); | |
5565 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5566 | x_free_gc (f, face->gc); |
5567 | face->gc = 0; | |
ed0c79c6 | 5568 | UNBLOCK_INPUT; |
82641697 | 5569 | } |
178c5d9c | 5570 | |
82641697 GM |
5571 | free_face_colors (f, face); |
5572 | x_destroy_bitmap (f, face->stipple); | |
5573 | } | |
c3cee013 | 5574 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5575 | |
5576 | xfree (face); | |
5577 | } | |
5578 | } | |
5579 | ||
5580 | ||
5581 | /* Prepare face FACE for subsequent display on frame F. This | |
5582 | allocated GCs if they haven't been allocated yet or have been freed | |
5583 | by clearing the face cache. */ | |
5584 | ||
5585 | void | |
5586 | prepare_face_for_display (f, face) | |
5587 | struct frame *f; | |
5588 | struct face *face; | |
5589 | { | |
c3cee013 JR |
5590 | #ifdef HAVE_WINDOW_SYSTEM |
5591 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5592 | |
82641697 GM |
5593 | if (face->gc == 0) |
5594 | { | |
5595 | XGCValues xgcv; | |
5596 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5597 | ||
5598 | xgcv.foreground = face->foreground; | |
5599 | xgcv.background = face->background; | |
c3cee013 | 5600 | #ifdef HAVE_X_WINDOWS |
82641697 | 5601 | xgcv.graphics_exposures = False; |
c3cee013 | 5602 | #endif |
82641697 GM |
5603 | /* The font of FACE may be null if we couldn't load it. */ |
5604 | if (face->font) | |
5605 | { | |
c3cee013 | 5606 | #ifdef HAVE_X_WINDOWS |
19d4ac93 KH |
5607 | #ifdef USE_FONT_BACKEND |
5608 | if (enable_font_backend) | |
5609 | xgcv.font = FRAME_X_DISPLAY_INFO (f)->font->fid; | |
5610 | else | |
5611 | #endif | |
82641697 | 5612 | xgcv.font = face->font->fid; |
c3cee013 JR |
5613 | #endif |
5614 | #ifdef WINDOWSNT | |
5615 | xgcv.font = face->font; | |
1a578e9b | 5616 | #endif |
e0f712ba | 5617 | #ifdef MAC_OS |
1a578e9b | 5618 | xgcv.font = face->font; |
c3cee013 | 5619 | #endif |
82641697 GM |
5620 | mask |= GCFont; |
5621 | } | |
5622 | ||
5623 | BLOCK_INPUT; | |
c3cee013 | 5624 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5625 | if (face->stipple) |
5626 | { | |
be8a72f4 | 5627 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5628 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5629 | mask |= GCFillStyle | GCStipple; | |
5630 | } | |
c3cee013 | 5631 | #endif |
82641697 | 5632 | face->gc = x_create_gc (f, mask, &xgcv); |
426b2119 KH |
5633 | #ifdef USE_FONT_BACKEND |
5634 | if (enable_font_backend && face->font) | |
5635 | font_prepare_for_face (f, face); | |
5636 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5637 | UNBLOCK_INPUT; |
5638 | } | |
c3cee013 | 5639 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5640 | } |
5641 | ||
82641697 | 5642 | \f |
b35df831 MB |
5643 | /* Returns the `distance' between the colors X and Y. */ |
5644 | ||
5645 | static int | |
5646 | color_distance (x, y) | |
5647 | XColor *x, *y; | |
5648 | { | |
5649 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5650 | Quoting from that paper: | |
5651 | ||
5652 | This formula has results that are very close to L*u*v* (with the | |
5653 | modified lightness curve) and, more importantly, it is a more even | |
5654 | algorithm: it does not have a range of colours where it suddenly | |
5655 | gives far from optimal results. | |
5656 | ||
5657 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5658 | ||
5659 | long r = (x->red - y->red) >> 8; | |
5660 | long g = (x->green - y->green) >> 8; | |
5661 | long b = (x->blue - y->blue) >> 8; | |
5662 | long r_mean = (x->red + y->red) >> 9; | |
5663 | ||
5664 | return | |
5665 | (((512 + r_mean) * r * r) >> 8) | |
5666 | + 4 * g * g | |
5667 | + (((767 - r_mean) * b * b) >> 8); | |
5668 | } | |
5669 | ||
5670 | ||
5671 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5672 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5673 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5674 | or lists of the form (RED GREEN BLUE). | |
5675 | If FRAME is unspecified or nil, the current frame is used. */) | |
5676 | (color1, color2, frame) | |
5677 | Lisp_Object color1, color2, frame; | |
5678 | { | |
5679 | struct frame *f; | |
5680 | XColor cdef1, cdef2; | |
5681 | ||
5682 | if (NILP (frame)) | |
5683 | frame = selected_frame; | |
5684 | CHECK_LIVE_FRAME (frame); | |
5685 | f = XFRAME (frame); | |
5686 | ||
6c8e1d62 JB |
5687 | if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1)) |
5688 | && !(STRINGP (color1) && defined_color (f, SDATA (color1), &cdef1, 0))) | |
b35df831 | 5689 | signal_error ("Invalid color", color1); |
6c8e1d62 JB |
5690 | if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2)) |
5691 | && !(STRINGP (color2) && defined_color (f, SDATA (color2), &cdef2, 0))) | |
b35df831 MB |
5692 | signal_error ("Invalid color", color2); |
5693 | ||
5694 | return make_number (color_distance (&cdef1, &cdef2)); | |
5695 | } | |
5696 | ||
5697 | \f | |
82641697 GM |
5698 | /*********************************************************************** |
5699 | Face Cache | |
5700 | ***********************************************************************/ | |
5701 | ||
5702 | /* Return a new face cache for frame F. */ | |
5703 | ||
5704 | static struct face_cache * | |
5705 | make_face_cache (f) | |
5706 | struct frame *f; | |
5707 | { | |
5708 | struct face_cache *c; | |
5709 | int size; | |
5710 | ||
5711 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5712 | bzero (c, sizeof *c); | |
5713 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5714 | c->buckets = (struct face **) xmalloc (size); | |
5715 | bzero (c->buckets, size); | |
5716 | c->size = 50; | |
5717 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5718 | c->f = f; | |
ceeda019 | 5719 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5720 | return c; |
5721 | } | |
5722 | ||
5723 | ||
5724 | /* Clear out all graphics contexts for all realized faces, except for | |
5725 | the basic faces. This should be done from time to time just to avoid | |
5726 | keeping too many graphics contexts that are no longer needed. */ | |
5727 | ||
5728 | static void | |
5729 | clear_face_gcs (c) | |
5730 | struct face_cache *c; | |
5731 | { | |
c3cee013 | 5732 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5733 | { |
c3cee013 | 5734 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5735 | int i; |
5736 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5737 | { | |
5738 | struct face *face = c->faces_by_id[i]; | |
5739 | if (face && face->gc) | |
5740 | { | |
985773c9 | 5741 | BLOCK_INPUT; |
426b2119 KH |
5742 | #ifdef USE_FONT_BACKEND |
5743 | if (enable_font_backend && face->font_info) | |
5744 | font_done_for_face (c->f, face); | |
5745 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
5746 | x_free_gc (c->f, face->gc); |
5747 | face->gc = 0; | |
ed0c79c6 | 5748 | UNBLOCK_INPUT; |
82641697 GM |
5749 | } |
5750 | } | |
c3cee013 | 5751 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5752 | } |
5753 | } | |
5754 | ||
5755 | ||
7fc92635 JB |
5756 | /* Free all realized faces in face cache C, including basic faces. |
5757 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
5758 | matrix is marked invalid, so that a display caused by an expose |
5759 | event doesn't try to use faces we destroyed. */ | |
5760 | ||
5761 | static void | |
5762 | free_realized_faces (c) | |
5763 | struct face_cache *c; | |
5764 | { | |
5765 | if (c && c->used) | |
5766 | { | |
5767 | int i, size; | |
5768 | struct frame *f = c->f; | |
5769 | ||
84ec3b4b GM |
5770 | /* We must block input here because we can't process X events |
5771 | safely while only some faces are freed, or when the frame's | |
5772 | current matrix still references freed faces. */ | |
5773 | BLOCK_INPUT; | |
5774 | ||
82641697 GM |
5775 | for (i = 0; i < c->used; ++i) |
5776 | { | |
5777 | free_realized_face (f, c->faces_by_id[i]); | |
5778 | c->faces_by_id[i] = NULL; | |
5779 | } | |
178c5d9c | 5780 | |
82641697 GM |
5781 | c->used = 0; |
5782 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5783 | bzero (c->buckets, size); | |
5784 | ||
5785 | /* Must do a thorough redisplay the next time. Mark current | |
5786 | matrices as invalid because they will reference faces freed | |
5787 | above. This function is also called when a frame is | |
5788 | destroyed. In this case, the root window of F is nil. */ | |
5789 | if (WINDOWP (f->root_window)) | |
5790 | { | |
5791 | clear_current_matrices (f); | |
5792 | ++windows_or_buffers_changed; | |
5793 | } | |
84ec3b4b GM |
5794 | |
5795 | UNBLOCK_INPUT; | |
82641697 GM |
5796 | } |
5797 | } | |
5798 | ||
5799 | ||
81b39386 | 5800 | /* Free all realized faces that are using FONTSET on frame F. */ |
39506348 KH |
5801 | |
5802 | void | |
81b39386 | 5803 | free_realized_faces_for_fontset (f, fontset) |
39506348 KH |
5804 | struct frame *f; |
5805 | int fontset; | |
5806 | { | |
5807 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5808 | struct face *face; | |
5809 | int i; | |
5810 | ||
84ec3b4b GM |
5811 | /* We must block input here because we can't process X events safely |
5812 | while only some faces are freed, or when the frame's current | |
5813 | matrix still references freed faces. */ | |
5814 | BLOCK_INPUT; | |
178c5d9c | 5815 | |
39506348 KH |
5816 | for (i = 0; i < cache->used; i++) |
5817 | { | |
5818 | face = cache->faces_by_id[i]; | |
5819 | if (face | |
39506348 KH |
5820 | && face->fontset == fontset) |
5821 | { | |
5822 | uncache_face (cache, face); | |
5823 | free_realized_face (f, face); | |
5824 | } | |
5825 | } | |
178c5d9c | 5826 | |
84ec3b4b GM |
5827 | /* Must do a thorough redisplay the next time. Mark current |
5828 | matrices as invalid because they will reference faces freed | |
5829 | above. This function is also called when a frame is destroyed. | |
5830 | In this case, the root window of F is nil. */ | |
39506348 KH |
5831 | if (WINDOWP (f->root_window)) |
5832 | { | |
5833 | clear_current_matrices (f); | |
5834 | ++windows_or_buffers_changed; | |
5835 | } | |
178c5d9c | 5836 | |
84ec3b4b | 5837 | UNBLOCK_INPUT; |
39506348 KH |
5838 | } |
5839 | ||
5840 | ||
82641697 GM |
5841 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5842 | This is done after attributes of a named face have been changed, | |
5843 | because we can't tell which realized faces depend on that face. */ | |
5844 | ||
5845 | void | |
5846 | free_all_realized_faces (frame) | |
5847 | Lisp_Object frame; | |
5848 | { | |
5849 | if (NILP (frame)) | |
5850 | { | |
5851 | Lisp_Object rest; | |
5852 | FOR_EACH_FRAME (rest, frame) | |
5853 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5854 | } | |
5855 | else | |
5856 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5857 | } | |
5858 | ||
5859 | ||
5860 | /* Free face cache C and faces in it, including their X resources. */ | |
5861 | ||
5862 | static void | |
5863 | free_face_cache (c) | |
5864 | struct face_cache *c; | |
5865 | { | |
5866 | if (c) | |
5867 | { | |
5868 | free_realized_faces (c); | |
5869 | xfree (c->buckets); | |
5870 | xfree (c->faces_by_id); | |
5871 | xfree (c); | |
5872 | } | |
5873 | } | |
5874 | ||
5875 | ||
5876 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
af53b43c KH |
5877 | of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face == |
5878 | FACE), insert the new face to the beginning of the collision list | |
5879 | of the face hash table of C. Otherwise, add the new face to the | |
5880 | end of the collision list. This way, lookup_face can quickly find | |
5881 | that a requested face is not cached. */ | |
82641697 GM |
5882 | |
5883 | static void | |
5884 | cache_face (c, face, hash) | |
5885 | struct face_cache *c; | |
5886 | struct face *face; | |
5887 | unsigned hash; | |
5888 | { | |
5889 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5890 | ||
5891 | face->hash = hash; | |
5892 | ||
af53b43c | 5893 | if (face->ascii_face != face) |
82641697 GM |
5894 | { |
5895 | struct face *last = c->buckets[i]; | |
5896 | if (last) | |
5897 | { | |
5898 | while (last->next) | |
5899 | last = last->next; | |
5900 | last->next = face; | |
5901 | face->prev = last; | |
5902 | face->next = NULL; | |
5903 | } | |
5904 | else | |
5905 | { | |
5906 | c->buckets[i] = face; | |
5907 | face->prev = face->next = NULL; | |
5908 | } | |
5909 | } | |
5910 | else | |
5911 | { | |
5912 | face->prev = NULL; | |
5913 | face->next = c->buckets[i]; | |
5914 | if (face->next) | |
5915 | face->next->prev = face; | |
5916 | c->buckets[i] = face; | |
5917 | } | |
5918 | ||
5919 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5920 | slot as FACE->id. */ | |
5921 | for (i = 0; i < c->used; ++i) | |
5922 | if (c->faces_by_id[i] == NULL) | |
5923 | break; | |
5924 | face->id = i; | |
178c5d9c | 5925 | |
82641697 | 5926 | /* Maybe enlarge C->faces_by_id. */ |
6b61353c | 5927 | if (i == c->used) |
82641697 | 5928 | { |
6b61353c KH |
5929 | if (c->used == c->size) |
5930 | { | |
5931 | int new_size, sz; | |
5932 | new_size = min (2 * c->size, MAX_FACE_ID); | |
5933 | if (new_size == c->size) | |
5934 | abort (); /* Alternatives? ++kfs */ | |
5935 | sz = new_size * sizeof *c->faces_by_id; | |
5936 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5937 | c->size = new_size; | |
5938 | } | |
5939 | c->used++; | |
82641697 GM |
5940 | } |
5941 | ||
5942 | #if GLYPH_DEBUG | |
5943 | /* Check that FACE got a unique id. */ | |
5944 | { | |
5945 | int j, n; | |
5946 | struct face *face; | |
5947 | ||
5948 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5949 | for (face = c->buckets[j]; face; face = face->next) | |
5950 | if (face->id == i) | |
5951 | ++n; | |
5952 | ||
5953 | xassert (n == 1); | |
5954 | } | |
5955 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5956 | |
82641697 | 5957 | c->faces_by_id[i] = face; |
82641697 GM |
5958 | } |
5959 | ||
5960 | ||
5961 | /* Remove face FACE from cache C. */ | |
5962 | ||
5963 | static void | |
5964 | uncache_face (c, face) | |
5965 | struct face_cache *c; | |
5966 | struct face *face; | |
5967 | { | |
5968 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5969 | |
82641697 GM |
5970 | if (face->prev) |
5971 | face->prev->next = face->next; | |
5972 | else | |
5973 | c->buckets[i] = face->next; | |
178c5d9c | 5974 | |
82641697 GM |
5975 | if (face->next) |
5976 | face->next->prev = face->prev; | |
178c5d9c | 5977 | |
82641697 GM |
5978 | c->faces_by_id[face->id] = NULL; |
5979 | if (face->id == c->used) | |
5980 | --c->used; | |
5981 | } | |
5982 | ||
5983 | ||
5984 | /* Look up a realized face with face attributes ATTR in the face cache | |
af53b43c KH |
5985 | of frame F. The face will be used to display ASCII characters. |
5986 | Value is the ID of the face found. If no suitable face is found, | |
5987 | realize a new one. */ | |
82641697 GM |
5988 | |
5989 | INLINE int | |
af53b43c | 5990 | lookup_face (f, attr) |
82641697 GM |
5991 | struct frame *f; |
5992 | Lisp_Object *attr; | |
82641697 | 5993 | { |
39506348 | 5994 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5995 | unsigned hash; |
5996 | int i; | |
5997 | struct face *face; | |
5998 | ||
39506348 | 5999 | xassert (cache != NULL); |
82641697 GM |
6000 | check_lface_attrs (attr); |
6001 | ||
6002 | /* Look up ATTR in the face cache. */ | |
6003 | hash = lface_hash (attr); | |
6004 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 6005 | |
39506348 | 6006 | for (face = cache->buckets[i]; face; face = face->next) |
af53b43c KH |
6007 | { |
6008 | if (face->ascii_face != face) | |
6009 | { | |
6010 | /* There's no more ASCII face. */ | |
6011 | face = NULL; | |
6012 | break; | |
6013 | } | |
6014 | if (face->hash == hash | |
6015 | && lface_equal_p (face->lface, attr)) | |
6016 | break; | |
6017 | } | |
82641697 GM |
6018 | |
6019 | /* If not found, realize a new face. */ | |
6020 | if (face == NULL) | |
af53b43c | 6021 | face = realize_face (cache, attr, -1); |
82641697 GM |
6022 | |
6023 | #if GLYPH_DEBUG | |
6024 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 6025 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 6026 | |
82641697 GM |
6027 | return face->id; |
6028 | } | |
6029 | ||
8c6204de | 6030 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
6031 | /* Look up a realized face that has the same attributes as BASE_FACE |
6032 | except for the font in the face cache of frame F. If FONT_ID is | |
6033 | not negative, it is an ID number of an already opened font that is | |
6034 | used by the face. If FONT_ID is negative, the face has no font. | |
6035 | Value is the ID of the face found. If no suitable face is found, | |
6036 | realize a new one. */ | |
6037 | ||
8f924df7 | 6038 | int |
af53b43c KH |
6039 | lookup_non_ascii_face (f, font_id, base_face) |
6040 | struct frame *f; | |
6041 | int font_id; | |
6042 | struct face *base_face; | |
6043 | { | |
6044 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6045 | unsigned hash; | |
6046 | int i; | |
6047 | struct face *face; | |
6048 | ||
6049 | xassert (cache != NULL); | |
6050 | base_face = base_face->ascii_face; | |
6051 | hash = lface_hash (base_face->lface); | |
6052 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6053 | ||
6054 | for (face = cache->buckets[i]; face; face = face->next) | |
6055 | { | |
6056 | if (face->ascii_face == face) | |
6057 | continue; | |
6058 | if (face->ascii_face == base_face | |
6059 | && face->font_info_id == font_id) | |
6060 | break; | |
6061 | } | |
6062 | ||
6063 | /* If not found, realize a new face. */ | |
6064 | if (face == NULL) | |
6065 | face = realize_non_ascii_face (f, font_id, base_face); | |
6066 | ||
6067 | #if GLYPH_DEBUG | |
6068 | xassert (face == FACE_FROM_ID (f, face->id)); | |
82641697 | 6069 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 6070 | |
82641697 GM |
6071 | return face->id; |
6072 | } | |
426b2119 KH |
6073 | |
6074 | #ifdef USE_FONT_BACKEND | |
6075 | int | |
6076 | face_for_font (f, font, base_face) | |
6077 | struct frame *f; | |
6078 | struct font *font; | |
6079 | struct face *base_face; | |
6080 | { | |
6081 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
6082 | unsigned hash; | |
6083 | int i; | |
6084 | struct face *face; | |
6085 | ||
6086 | xassert (cache != NULL); | |
6087 | base_face = base_face->ascii_face; | |
6088 | hash = lface_hash (base_face->lface); | |
6089 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
6090 | ||
6091 | for (face = cache->buckets[i]; face; face = face->next) | |
6092 | { | |
6093 | if (face->ascii_face == face) | |
6094 | continue; | |
6095 | if (face->ascii_face == base_face | |
a0b61ddb | 6096 | && face->font == font->font.font |
426b2119 KH |
6097 | && face->font_info == (struct font_info *) font) |
6098 | return face->id; | |
6099 | } | |
6100 | ||
6101 | /* If not found, realize a new face. */ | |
6102 | face = realize_non_ascii_face (f, -1, base_face); | |
6103 | face->font = font->font.font; | |
6104 | face->font_info = (struct font_info *) font; | |
6105 | face->font_info_id = 0; | |
6106 | face->font_name = font->font.full_name; | |
6107 | return face->id; | |
6108 | } | |
6109 | #endif /* USE_FONT_BACKEND */ | |
6110 | ||
8c6204de | 6111 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6112 | |
82641697 | 6113 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6114 | frame F suitable for displaying ASCII characters. Value is -1 if |
6115 | the face couldn't be determined, which might happen if the default | |
6116 | face isn't realized and cannot be realized. */ | |
82641697 GM |
6117 | |
6118 | int | |
000fc2b1 | 6119 | lookup_named_face (f, symbol, signal_p) |
82641697 GM |
6120 | struct frame *f; |
6121 | Lisp_Object symbol; | |
2272e967 | 6122 | int signal_p; |
82641697 | 6123 | { |
e7d7fd8c MB |
6124 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6125 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6126 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6127 | ||
b5de343d GM |
6128 | if (default_face == NULL) |
6129 | { | |
6130 | if (!realize_basic_faces (f)) | |
6131 | return -1; | |
6132 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
418ca4d2 RS |
6133 | if (default_face == NULL) |
6134 | abort (); /* realize_basic_faces must have set it up */ | |
b5de343d GM |
6135 | } |
6136 | ||
e7d7fd8c | 6137 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p)) |
2272e967 KS |
6138 | return -1; |
6139 | ||
82641697 | 6140 | bcopy (default_face->lface, attrs, sizeof attrs); |
e7d7fd8c | 6141 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
a0a23346 | 6142 | |
af53b43c | 6143 | return lookup_face (f, attrs); |
82641697 GM |
6144 | } |
6145 | ||
6146 | ||
6147 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
6148 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
6149 | ||
6150 | int | |
6151 | ascii_face_of_lisp_face (f, lface_id) | |
6152 | struct frame *f; | |
6153 | int lface_id; | |
6154 | { | |
6155 | int face_id; | |
178c5d9c | 6156 | |
82641697 GM |
6157 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
6158 | { | |
6159 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
000fc2b1 | 6160 | face_id = lookup_named_face (f, face_name, 1); |
82641697 GM |
6161 | } |
6162 | else | |
6163 | face_id = -1; | |
6164 | ||
6165 | return face_id; | |
6166 | } | |
6167 | ||
6168 | ||
6169 | /* Return a face for charset ASCII that is like the face with id | |
6170 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
6171 | STEPS < 0 means larger. Value is the id of the face. */ | |
6172 | ||
6173 | int | |
6174 | smaller_face (f, face_id, steps) | |
6175 | struct frame *f; | |
6176 | int face_id, steps; | |
39506348 | 6177 | { |
c3cee013 | 6178 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6179 | struct face *face; |
6180 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6181 | int pt, last_pt, last_height; | |
6182 | int delta; | |
6183 | int new_face_id; | |
6184 | struct face *new_face; | |
6185 | ||
6186 | /* If not called for an X frame, just return the original face. */ | |
6187 | if (FRAME_TERMCAP_P (f)) | |
6188 | return face_id; | |
6189 | ||
6190 | /* Try in increments of 1/2 pt. */ | |
6191 | delta = steps < 0 ? 5 : -5; | |
1ea40aa2 | 6192 | steps = eabs (steps); |
178c5d9c | 6193 | |
82641697 GM |
6194 | face = FACE_FROM_ID (f, face_id); |
6195 | bcopy (face->lface, attrs, sizeof attrs); | |
6196 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6197 | new_face_id = face_id; | |
6198 | last_height = FONT_HEIGHT (face->font); | |
6199 | ||
6200 | while (steps | |
6201 | && pt + delta > 0 | |
6202 | /* Give up if we cannot find a font within 10pt. */ | |
1ea40aa2 | 6203 | && eabs (last_pt - pt) < 100) |
82641697 GM |
6204 | { |
6205 | /* Look up a face for a slightly smaller/larger font. */ | |
6206 | pt += delta; | |
6207 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
af53b43c | 6208 | new_face_id = lookup_face (f, attrs); |
82641697 GM |
6209 | new_face = FACE_FROM_ID (f, new_face_id); |
6210 | ||
6211 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
6212 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
6213 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
6214 | { |
6215 | --steps; | |
6216 | last_height = FONT_HEIGHT (new_face->font); | |
6217 | last_pt = pt; | |
6218 | } | |
6219 | } | |
6220 | ||
6221 | return new_face_id; | |
6222 | ||
c3cee013 | 6223 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6224 | |
6225 | return face_id; | |
178c5d9c | 6226 | |
c3cee013 | 6227 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6228 | } |
6229 | ||
6230 | ||
6231 | /* Return a face for charset ASCII that is like the face with id | |
6232 | FACE_ID on frame F, but has height HEIGHT. */ | |
6233 | ||
6234 | int | |
6235 | face_with_height (f, face_id, height) | |
6236 | struct frame *f; | |
6237 | int face_id; | |
6238 | int height; | |
6239 | { | |
c3cee013 | 6240 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
6241 | struct face *face; |
6242 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6243 | ||
6244 | if (FRAME_TERMCAP_P (f) | |
6245 | || height <= 0) | |
6246 | return face_id; | |
6247 | ||
6248 | face = FACE_FROM_ID (f, face_id); | |
6249 | bcopy (face->lface, attrs, sizeof attrs); | |
6250 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
af53b43c | 6251 | face_id = lookup_face (f, attrs); |
c3cee013 | 6252 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 6253 | |
82641697 GM |
6254 | return face_id; |
6255 | } | |
6256 | ||
b5de343d | 6257 | |
44747bd0 | 6258 | /* Return the face id of the realized face for named face SYMBOL on |
af53b43c KH |
6259 | frame F suitable for displaying ASCII characters, and use |
6260 | attributes of the face FACE_ID for attributes that aren't | |
6261 | completely specified by SYMBOL. This is like lookup_named_face, | |
6262 | except that the default attributes come from FACE_ID, not from the | |
6263 | default face. FACE_ID is assumed to be already realized. */ | |
44747bd0 EZ |
6264 | |
6265 | int | |
5c538596 | 6266 | lookup_derived_face (f, symbol, face_id, signal_p) |
44747bd0 EZ |
6267 | struct frame *f; |
6268 | Lisp_Object symbol; | |
44747bd0 | 6269 | int face_id; |
5c538596 | 6270 | int signal_p; |
44747bd0 | 6271 | { |
e7d7fd8c | 6272 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
44747bd0 EZ |
6273 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
6274 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
6275 | ||
6276 | if (!default_face) | |
6277 | abort (); | |
6278 | ||
e7d7fd8c | 6279 | get_lface_attributes (f, symbol, symbol_attrs, signal_p); |
44747bd0 | 6280 | bcopy (default_face->lface, attrs, sizeof attrs); |
e7d7fd8c | 6281 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
af53b43c | 6282 | return lookup_face (f, attrs); |
44747bd0 EZ |
6283 | } |
6284 | ||
f6608d5c RS |
6285 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
6286 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 6287 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
6288 | (plist) |
6289 | Lisp_Object plist; | |
6290 | { | |
6291 | Lisp_Object lface; | |
6292 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
6293 | Qunspecified); | |
a0a23346 MB |
6294 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
6295 | 1, 0); | |
f6608d5c RS |
6296 | return lface; |
6297 | } | |
6298 | ||
82641697 GM |
6299 | |
6300 | \f | |
9717e36c MB |
6301 | /*********************************************************************** |
6302 | Face capability testing | |
6303 | ***********************************************************************/ | |
6304 | ||
6305 | ||
6306 | /* If the distance (as returned by color_distance) between two colors is | |
6307 | less than this, then they are considered the same, for determining | |
6308 | whether a color is supported or not. The range of values is 0-65535. */ | |
6309 | ||
6310 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
6311 | ||
ccda4e3c | 6312 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
6313 | |
6314 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6315 | on the window-system frame F. | |
6316 | ||
6317 | The definition of `supported' is somewhat heuristic, but basically means | |
6318 | that a face containing all the attributes in ATTRS, when merged with the | |
6319 | default face for display, can be represented in a way that's | |
6320 | ||
6321 | \(1) different in appearance than the default face, and | |
8e330b22 | 6322 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
6323 | |
6324 | static int | |
8e330b22 | 6325 | x_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6326 | struct frame *f; |
6327 | Lisp_Object *attrs; | |
8e330b22 | 6328 | struct face *def_face; |
9717e36c | 6329 | { |
8e330b22 | 6330 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
6331 | |
6332 | /* Check that other specified attributes are different that the default | |
6333 | face. */ | |
6334 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
6335 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
6336 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
6337 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
6338 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
6339 | def_attrs[LFACE_INVERSE_INDEX])) | |
6340 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
6341 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
6342 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
6343 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
6344 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
6345 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
6346 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6347 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
6348 | def_attrs[LFACE_STIPPLE_INDEX])) | |
6349 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6350 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
6351 | def_attrs[LFACE_OVERLINE_INDEX])) | |
6352 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6353 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6354 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
6355 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6356 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
6357 | def_attrs[LFACE_BOX_INDEX]))) | |
6358 | return 0; | |
6359 | ||
6360 | /* Check font-related attributes, as those are the most commonly | |
6361 | "unsupported" on a window-system (because of missing fonts). */ | |
6362 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6363 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6364 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
6365 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
6366 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6367 | || !UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX])) | |
6368 | { | |
327719ee | 6369 | int face_id; |
9717e36c MB |
6370 | struct face *face; |
6371 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
6372 | ||
6373 | bcopy (def_attrs, merged_attrs, sizeof merged_attrs); | |
6374 | ||
a0a23346 | 6375 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c | 6376 | |
327719ee MB |
6377 | face_id = lookup_face (f, merged_attrs); |
6378 | face = FACE_FROM_ID (f, face_id); | |
9717e36c MB |
6379 | |
6380 | if (! face) | |
2010ba8c | 6381 | error ("Cannot make face"); |
9717e36c MB |
6382 | |
6383 | /* If the font is the same, then not supported. */ | |
6384 | if (face->font == def_face->font) | |
6385 | return 0; | |
6386 | } | |
6387 | ||
6388 | /* Everything checks out, this face is supported. */ | |
6389 | return 1; | |
6390 | } | |
6391 | ||
ccda4e3c | 6392 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
6393 | |
6394 | /* Return non-zero if all the face attributes in ATTRS are supported | |
6395 | on the tty frame F. | |
6396 | ||
6397 | The definition of `supported' is somewhat heuristic, but basically means | |
6398 | that a face containing all the attributes in ATTRS, when merged | |
6399 | with the default face for display, can be represented in a way that's | |
6400 | ||
6401 | \(1) different in appearance than the default face, and | |
6402 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6403 | ||
6404 | Point (2) implies that a `:weight black' attribute will be satisfied | |
6405 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
6406 | long as the terminal can display a yellowish color, but `:slant italic' | |
6407 | will _not_ be satisfied by the tty display code's automatic | |
6408 | substitution of a `dim' face for italic. */ | |
6409 | ||
6410 | static int | |
8e330b22 | 6411 | tty_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
6412 | struct frame *f; |
6413 | Lisp_Object *attrs; | |
8e330b22 | 6414 | struct face *def_face; |
9717e36c | 6415 | { |
734e9514 | 6416 | int weight; |
9717e36c MB |
6417 | Lisp_Object val, fg, bg; |
6418 | XColor fg_tty_color, fg_std_color; | |
6419 | XColor bg_tty_color, bg_std_color; | |
6420 | unsigned test_caps = 0; | |
8e330b22 | 6421 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 6422 | |
9717e36c | 6423 | |
8e330b22 MB |
6424 | /* First check some easy-to-check stuff; ttys support none of the |
6425 | following attributes, so we can just return false if any are requested | |
6426 | (even if `nominal' values are specified, we should still return false, | |
6427 | as that will be the same value that the default face uses). We | |
6428 | consider :slant unsupportable on ttys, even though the face code | |
6429 | actually `fakes' them using a dim attribute if possible. This is | |
6430 | because the faked result is too different from what the face | |
6431 | specifies. */ | |
6432 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6433 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6434 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6435 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6436 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6437 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6438 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6439 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
6440 | return 0; |
6441 | ||
6442 | ||
6443 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
6444 | ||
6445 | /* font weight (bold/dim) */ | |
6446 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6447 | if (weight >= 0) | |
6448 | { | |
8e330b22 MB |
6449 | int def_weight = face_numeric_weight (def_attrs[LFACE_WEIGHT_INDEX]); |
6450 | ||
9717e36c | 6451 | if (weight > XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6452 | { |
6453 | if (def_weight > XLFD_WEIGHT_MEDIUM) | |
6454 | return 0; /* same as default */ | |
6455 | test_caps = TTY_CAP_BOLD; | |
6456 | } | |
9717e36c | 6457 | else if (weight < XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6458 | { |
6459 | if (def_weight < XLFD_WEIGHT_MEDIUM) | |
6460 | return 0; /* same as default */ | |
6461 | test_caps = TTY_CAP_DIM; | |
6462 | } | |
6463 | else if (def_weight == XLFD_WEIGHT_MEDIUM) | |
6464 | return 0; /* same as default */ | |
9717e36c MB |
6465 | } |
6466 | ||
6467 | /* underlining */ | |
6468 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 6469 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
6470 | { |
6471 | if (STRINGP (val)) | |
8e330b22 MB |
6472 | return 0; /* ttys can't use colored underlines */ |
6473 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6474 | return 0; /* same as default */ | |
9717e36c MB |
6475 | else |
6476 | test_caps |= TTY_CAP_UNDERLINE; | |
6477 | } | |
6478 | ||
6479 | /* inverse video */ | |
6480 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
6481 | if (!UNSPECIFIEDP (val)) |
6482 | { | |
a13ab63f | 6483 | if (face_attr_equal_p (val, def_attrs[LFACE_INVERSE_INDEX])) |
8e330b22 MB |
6484 | return 0; /* same as default */ |
6485 | else | |
6486 | test_caps |= TTY_CAP_INVERSE; | |
6487 | } | |
9717e36c MB |
6488 | |
6489 | ||
6490 | /* Color testing. */ | |
6491 | ||
6492 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
6493 | we use them when calling `tty_capable_p' below, even if the face | |
6494 | specifies no colors. */ | |
6495 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6496 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6497 | ||
6498 | /* Check if foreground color is close enough. */ | |
6499 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
6500 | if (STRINGP (fg)) | |
6501 | { | |
8e330b22 MB |
6502 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6503 | ||
6504 | if (face_attr_equal_p (fg, def_fg)) | |
6505 | return 0; /* same as default */ | |
6506 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
6507 | return 0; /* not a valid color */ | |
9717e36c MB |
6508 | else if (color_distance (&fg_tty_color, &fg_std_color) |
6509 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6510 | return 0; /* displayed color is too different */ |
6511 | else | |
6512 | /* Make sure the color is really different than the default. */ | |
6513 | { | |
6514 | XColor def_fg_color; | |
6515 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
6516 | && (color_distance (&fg_tty_color, &def_fg_color) | |
6517 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6518 | return 0; | |
6519 | } | |
9717e36c MB |
6520 | } |
6521 | ||
6522 | /* Check if background color is close enough. */ | |
6523 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
6524 | if (STRINGP (bg)) | |
6525 | { | |
a13ab63f | 6526 | Lisp_Object def_bg = def_attrs[LFACE_BACKGROUND_INDEX]; |
8e330b22 MB |
6527 | |
6528 | if (face_attr_equal_p (bg, def_bg)) | |
6529 | return 0; /* same as default */ | |
6530 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
6531 | return 0; /* not a valid color */ | |
9717e36c MB |
6532 | else if (color_distance (&bg_tty_color, &bg_std_color) |
6533 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6534 | return 0; /* displayed color is too different */ |
6535 | else | |
6536 | /* Make sure the color is really different than the default. */ | |
6537 | { | |
6538 | XColor def_bg_color; | |
6539 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
6540 | && (color_distance (&bg_tty_color, &def_bg_color) | |
6541 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6542 | return 0; | |
6543 | } | |
9717e36c MB |
6544 | } |
6545 | ||
6546 | /* If both foreground and background are requested, see if the | |
6547 | distance between them is OK. We just check to see if the distance | |
6548 | between the tty's foreground and background is close enough to the | |
6549 | distance between the standard foreground and background. */ | |
6550 | if (STRINGP (fg) && STRINGP (bg)) | |
6551 | { | |
6552 | int delta_delta | |
6553 | = (color_distance (&fg_std_color, &bg_std_color) | |
6554 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
6555 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
6556 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
6557 | return 0; | |
6558 | } | |
6559 | ||
6560 | ||
6561 | /* See if the capabilities we selected above are supported, with the | |
6562 | given colors. */ | |
6563 | if (test_caps != 0 && | |
3d63dd9d | 6564 | ! tty_capable_p (FRAME_TTY (f), test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) |
9717e36c MB |
6565 | return 0; |
6566 | ||
6567 | ||
6568 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
6569 | return 1; | |
6570 | } | |
6571 | ||
6572 | ||
6573 | DEFUN ("display-supports-face-attributes-p", | |
6574 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
6575 | 1, 2, 0, | |
6576 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
6577 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 6578 | nil (meaning the selected frame's display). |
9717e36c MB |
6579 | |
6580 | The definition of `supported' is somewhat heuristic, but basically means | |
6581 | that a face containing all the attributes in ATTRIBUTES, when merged | |
6582 | with the default face for display, can be represented in a way that's | |
6583 | ||
6584 | \(1) different in appearance than the default face, and | |
6585 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6586 | ||
6587 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
6588 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
6589 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
6590 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 6591 | face for italic. */) |
9717e36c MB |
6592 | (attributes, display) |
6593 | Lisp_Object attributes, display; | |
6594 | { | |
221439a0 | 6595 | int supports = 0, i; |
9717e36c MB |
6596 | Lisp_Object frame; |
6597 | struct frame *f; | |
8e330b22 | 6598 | struct face *def_face; |
9717e36c MB |
6599 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6600 | ||
0722292b MB |
6601 | if (noninteractive || !initialized) |
6602 | /* We may not be able to access low-level face information in batch | |
6603 | mode, or before being dumped, and this function is not going to | |
6604 | be very useful in those cases anyway, so just give up. */ | |
6605 | return Qnil; | |
6606 | ||
9717e36c MB |
6607 | if (NILP (display)) |
6608 | frame = selected_frame; | |
6609 | else if (FRAMEP (display)) | |
6610 | frame = display; | |
6611 | else | |
6612 | { | |
6613 | /* Find any frame on DISPLAY. */ | |
6614 | Lisp_Object fl_tail; | |
6615 | ||
6616 | frame = Qnil; | |
6617 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
6618 | { | |
6619 | frame = XCAR (fl_tail); | |
6620 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
6621 | XFRAME (frame)->param_alist)), | |
6622 | display))) | |
6623 | break; | |
6624 | } | |
6625 | } | |
6626 | ||
6627 | CHECK_LIVE_FRAME (frame); | |
6628 | f = XFRAME (frame); | |
6629 | ||
6630 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
6631 | attrs[i] = Qunspecified; | |
a0a23346 | 6632 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 6633 | |
8e330b22 MB |
6634 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6635 | if (def_face == NULL) | |
6636 | { | |
6637 | if (! realize_basic_faces (f)) | |
734e9514 | 6638 | error ("Cannot realize default face"); |
8e330b22 | 6639 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
418ca4d2 RS |
6640 | if (def_face == NULL) |
6641 | abort (); /* realize_basic_faces must have set it up */ | |
8e330b22 MB |
6642 | } |
6643 | ||
9717e36c MB |
6644 | /* Dispatch to the appropriate handler. */ |
6645 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 6646 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 6647 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 6648 | else |
8e330b22 MB |
6649 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
6650 | #endif | |
9717e36c MB |
6651 | |
6652 | return supports ? Qt : Qnil; | |
6653 | } | |
6654 | ||
6655 | \f | |
82641697 GM |
6656 | /*********************************************************************** |
6657 | Font selection | |
6658 | ***********************************************************************/ | |
6659 | ||
8f924df7 | 6660 | DEFUN ("internal-set-font-selection-order", |
82641697 GM |
6661 | Finternal_set_font_selection_order, |
6662 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 6663 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
6664 | ORDER must be a list of length 4 containing the symbols `:width', |
6665 | `:height', `:weight', and `:slant'. Face attributes appearing | |
6666 | first in ORDER are matched first, e.g. if `:height' appears before | |
6667 | `:weight' in ORDER, font selection first tries to find a font with | |
6668 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
6669 | Value is ORDER. */) |
6670 | (order) | |
228299fa | 6671 | Lisp_Object order; |
82641697 GM |
6672 | { |
6673 | Lisp_Object list; | |
6674 | int i; | |
a08332c0 | 6675 | int indices[DIM (font_sort_order)]; |
178c5d9c | 6676 | |
b7826503 | 6677 | CHECK_LIST (order); |
82641697 GM |
6678 | bzero (indices, sizeof indices); |
6679 | i = 0; | |
6680 | ||
6681 | for (list = order; | |
6682 | CONSP (list) && i < DIM (indices); | |
6683 | list = XCDR (list), ++i) | |
6684 | { | |
6685 | Lisp_Object attr = XCAR (list); | |
6686 | int xlfd; | |
6687 | ||
6688 | if (EQ (attr, QCwidth)) | |
6689 | xlfd = XLFD_SWIDTH; | |
6690 | else if (EQ (attr, QCheight)) | |
6691 | xlfd = XLFD_POINT_SIZE; | |
6692 | else if (EQ (attr, QCweight)) | |
6693 | xlfd = XLFD_WEIGHT; | |
6694 | else if (EQ (attr, QCslant)) | |
6695 | xlfd = XLFD_SLANT; | |
6696 | else | |
6697 | break; | |
6698 | ||
6699 | if (indices[i] != 0) | |
6700 | break; | |
6701 | indices[i] = xlfd; | |
6702 | } | |
6703 | ||
a08332c0 | 6704 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 6705 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
6706 | for (i = 0; i < DIM (font_sort_order); ++i) |
6707 | if (indices[i] == 0) | |
6708 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
6709 | |
6710 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
6711 | { | |
6712 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
6713 | free_all_realized_faces (Qnil); | |
6714 | } | |
178c5d9c | 6715 | |
426b2119 | 6716 | #ifdef USE_FONT_BACKEND |
19d4ac93 KH |
6717 | if (enable_font_backend) |
6718 | font_update_sort_order (font_sort_order); | |
426b2119 KH |
6719 | #endif /* USE_FONT_BACKEND */ |
6720 | ||
82641697 GM |
6721 | return Qnil; |
6722 | } | |
6723 | ||
6724 | ||
6725 | DEFUN ("internal-set-alternative-font-family-alist", | |
6726 | Finternal_set_alternative_font_family_alist, | |
6727 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 6728 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
6729 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6730 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
6731 | be found. Value is ALIST. */) |
6732 | (alist) | |
82641697 GM |
6733 | Lisp_Object alist; |
6734 | { | |
b7826503 | 6735 | CHECK_LIST (alist); |
82641697 GM |
6736 | Vface_alternative_font_family_alist = alist; |
6737 | free_all_realized_faces (Qnil); | |
6738 | return alist; | |
6739 | } | |
6740 | ||
6741 | ||
32fcc231 GM |
6742 | DEFUN ("internal-set-alternative-font-registry-alist", |
6743 | Finternal_set_alternative_font_registry_alist, | |
6744 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 6745 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
6746 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6747 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
6748 | be found. Value is ALIST. */) |
6749 | (alist) | |
32fcc231 GM |
6750 | Lisp_Object alist; |
6751 | { | |
b7826503 | 6752 | CHECK_LIST (alist); |
32fcc231 GM |
6753 | Vface_alternative_font_registry_alist = alist; |
6754 | free_all_realized_faces (Qnil); | |
6755 | return alist; | |
6756 | } | |
6757 | ||
6758 | ||
c3cee013 | 6759 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6760 | |
82641697 GM |
6761 | /* Value is non-zero if FONT is the name of a scalable font. The |
6762 | X11R6 XLFD spec says that point size, pixel size, and average width | |
6763 | are zero for scalable fonts. Intlfonts contain at least one | |
6764 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
6765 | just test average width. */ | |
6766 | ||
6767 | static int | |
6768 | font_scalable_p (font) | |
6769 | struct font_name *font; | |
6770 | { | |
6771 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
6772 | return (*s == '0' && *(s + 1) == '\0') |
6773 | #ifdef WINDOWSNT | |
6774 | /* Windows implementation of XLFD is slightly broken for backward | |
6775 | compatibility with previous broken versions, so test for | |
6776 | wildcards as well as 0. */ | |
6777 | || *s == '*' | |
6778 | #endif | |
6779 | ; | |
82641697 GM |
6780 | } |
6781 | ||
6782 | ||
8e1b21a7 KH |
6783 | /* Ignore the difference of font point size less than this value. */ |
6784 | ||
6785 | #define FONT_POINT_SIZE_QUANTUM 5 | |
6786 | ||
82641697 GM |
6787 | /* Value is non-zero if FONT1 is a better match for font attributes |
6788 | VALUES than FONT2. VALUES is an array of face attribute values in | |
6789 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
6790 | sizes. AVGWIDTH, if not zero, is a specified font average width |
6791 | to compare with. */ | |
82641697 GM |
6792 | |
6793 | static int | |
a08332c0 | 6794 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
6795 | int *values; |
6796 | struct font_name *font1, *font2; | |
a08332c0 | 6797 | int compare_pt_p, avgwidth; |
82641697 GM |
6798 | { |
6799 | int i; | |
178c5d9c | 6800 | |
6c1195ab RS |
6801 | /* Any font is better than no font. */ |
6802 | if (! font1) | |
6803 | return 0; | |
6804 | if (! font2) | |
6805 | return 1; | |
6806 | ||
a08332c0 | 6807 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6808 | { |
6809 | int xlfd_idx = font_sort_order[i]; | |
6810 | ||
6811 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
6812 | { | |
f70400f2 KH |
6813 | int delta1, delta2; |
6814 | ||
6815 | if (xlfd_idx == XLFD_POINT_SIZE) | |
6816 | { | |
1ea40aa2 | 6817 | delta1 = eabs (values[i] - (font1->numeric[xlfd_idx] |
f70400f2 | 6818 | / font1->rescale_ratio)); |
1ea40aa2 | 6819 | delta2 = eabs (values[i] - (font2->numeric[xlfd_idx] |
f70400f2 | 6820 | / font2->rescale_ratio)); |
1ea40aa2 | 6821 | if (eabs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) |
f70400f2 KH |
6822 | continue; |
6823 | } | |
6824 | else | |
6825 | { | |
1ea40aa2 EZ |
6826 | delta1 = eabs (values[i] - font1->numeric[xlfd_idx]); |
6827 | delta2 = eabs (values[i] - font2->numeric[xlfd_idx]); | |
f70400f2 | 6828 | } |
178c5d9c | 6829 | |
82641697 GM |
6830 | if (delta1 > delta2) |
6831 | return 0; | |
6832 | else if (delta1 < delta2) | |
6833 | return 1; | |
6834 | else | |
6835 | { | |
6836 | /* The difference may be equal because, e.g., the face | |
6837 | specifies `italic' but we have only `regular' and | |
6838 | `oblique'. Prefer `oblique' in this case. */ | |
6839 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6840 | && font1->numeric[xlfd_idx] > values[i] | |
6841 | && font2->numeric[xlfd_idx] < values[i]) | |
6842 | return 1; | |
6843 | } | |
6844 | } | |
6845 | } | |
178c5d9c | 6846 | |
a08332c0 GM |
6847 | if (avgwidth) |
6848 | { | |
1ea40aa2 EZ |
6849 | int delta1 = eabs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); |
6850 | int delta2 = eabs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
a08332c0 GM |
6851 | if (delta1 > delta2) |
6852 | return 0; | |
6853 | else if (delta1 < delta2) | |
6854 | return 1; | |
6855 | } | |
6856 | ||
6b61353c KH |
6857 | if (! compare_pt_p) |
6858 | { | |
6859 | /* We prefer a real scalable font; i.e. not what autoscaled. */ | |
6860 | int auto_scaled_1 = (font1->numeric[XLFD_POINT_SIZE] == 0 | |
6861 | && font1->numeric[XLFD_RESY] > 0); | |
6862 | int auto_scaled_2 = (font2->numeric[XLFD_POINT_SIZE] == 0 | |
6863 | && font2->numeric[XLFD_RESY] > 0); | |
6864 | ||
6865 | if (auto_scaled_1 != auto_scaled_2) | |
6866 | return auto_scaled_2; | |
6867 | } | |
6868 | ||
a08332c0 | 6869 | return font1->registry_priority < font2->registry_priority; |
82641697 GM |
6870 | } |
6871 | ||
6872 | ||
82641697 GM |
6873 | /* Value is non-zero if FONT is an exact match for face attributes in |
6874 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6875 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6876 | with. */ | |
82641697 GM |
6877 | |
6878 | static int | |
a08332c0 | 6879 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6880 | int *specified; |
6881 | struct font_name *font; | |
a08332c0 | 6882 | int avgwidth; |
82641697 GM |
6883 | { |
6884 | int i; | |
178c5d9c | 6885 | |
a08332c0 | 6886 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6887 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6888 | break; | |
6889 | ||
a08332c0 GM |
6890 | return (i == DIM (font_sort_order) |
6891 | && (avgwidth <= 0 | |
6892 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6893 | } |
6894 | ||
6895 | ||
6896 | /* Value is the name of a scaled font, generated from scalable font | |
6897 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6898 | Value is allocated from heap. */ | |
6899 | ||
6900 | static char * | |
6901 | build_scalable_font_name (f, font, specified_pt) | |
6902 | struct frame *f; | |
6903 | struct font_name *font; | |
6904 | int specified_pt; | |
6905 | { | |
a7255152 | 6906 | char pixel_size[20]; |
82641697 GM |
6907 | int pixel_value; |
6908 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6909 | double pt; | |
6910 | ||
bb229eec KH |
6911 | if (font->numeric[XLFD_PIXEL_SIZE] != 0 |
6912 | || font->numeric[XLFD_POINT_SIZE] != 0) | |
6913 | /* This is a scalable font but is requested for a specific size. | |
6914 | We should not change that size. */ | |
6915 | return build_font_name (font); | |
6916 | ||
82641697 GM |
6917 | /* If scalable font is for a specific resolution, compute |
6918 | the point size we must specify from the resolution of | |
6919 | the display and the specified resolution of the font. */ | |
6920 | if (font->numeric[XLFD_RESY] != 0) | |
6921 | { | |
6922 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
02a6375c | 6923 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 GM |
6924 | } |
6925 | else | |
6926 | { | |
6927 | pt = specified_pt; | |
02a6375c | 6928 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 | 6929 | } |
f70400f2 KH |
6930 | /* We may need a font of the different size. */ |
6931 | pixel_value *= font->rescale_ratio; | |
178c5d9c | 6932 | |
f70400f2 KH |
6933 | /* We should keep POINT_SIZE 0. Otherwise, X server can't open a |
6934 | font of the specified PIXEL_SIZE. */ | |
6935 | #if 0 | |
a7255152 SM |
6936 | { /* Set point size of the font. */ |
6937 | char point_size[20]; | |
6938 | sprintf (point_size, "%d", (int) pt); | |
6939 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6940 | font->numeric[XLFD_POINT_SIZE] = pt; | |
6941 | } | |
f70400f2 | 6942 | #endif |
178c5d9c | 6943 | |
82641697 GM |
6944 | /* Set pixel size. */ |
6945 | sprintf (pixel_size, "%d", pixel_value); | |
6946 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6947 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6948 | |
82641697 GM |
6949 | /* If font doesn't specify its resolution, use the |
6950 | resolution of the display. */ | |
6951 | if (font->numeric[XLFD_RESY] == 0) | |
6952 | { | |
6953 | char buffer[20]; | |
6954 | sprintf (buffer, "%d", (int) resy); | |
6955 | font->fields[XLFD_RESY] = buffer; | |
6956 | font->numeric[XLFD_RESY] = resy; | |
6957 | } | |
178c5d9c | 6958 | |
82641697 GM |
6959 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6960 | { | |
6961 | char buffer[20]; | |
6962 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6963 | sprintf (buffer, "%d", resx); | |
6964 | font->fields[XLFD_RESX] = buffer; | |
6965 | font->numeric[XLFD_RESX] = resx; | |
6966 | } | |
6967 | ||
6968 | return build_font_name (font); | |
6969 | } | |
6970 | ||
6971 | ||
6972 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6973 | can't run a Lisp function here since this function may be called | |
6974 | with input blocked. */ | |
6975 | ||
6976 | static int | |
702a1e8e | 6977 | may_use_scalable_font_p (font) |
53c208f6 | 6978 | const char *font; |
82641697 GM |
6979 | { |
6980 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6981 | return 1; | |
6982 | else if (CONSP (Vscalable_fonts_allowed)) | |
6983 | { | |
6984 | Lisp_Object tail, regexp; | |
178c5d9c | 6985 | |
82641697 GM |
6986 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6987 | { | |
6988 | regexp = XCAR (tail); | |
6989 | if (STRINGP (regexp) | |
702a1e8e | 6990 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6991 | return 1; |
6992 | } | |
6993 | } | |
178c5d9c | 6994 | |
82641697 GM |
6995 | return 0; |
6996 | } | |
6997 | ||
82641697 GM |
6998 | |
6999 | ||
2e6621ca GM |
7000 | /* Return the name of the best matching font for face attributes ATTRS |
7001 | in the array of font_name structures FONTS which contains NFONTS | |
7002 | elements. WIDTH_RATIO is a factor with which to multiply average | |
7003 | widths if ATTRS specifies such a width. | |
7004 | ||
7005 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
7006 | freed by this function. |
7007 | ||
7008 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
7009 | indicate whether the resulting font should be drawn using overstrike | |
7010 | to simulate bold-face. */ | |
82641697 GM |
7011 | |
7012 | static char * | |
6ae2cd57 | 7013 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
7014 | struct frame *f; |
7015 | Lisp_Object *attrs; | |
7016 | struct font_name *fonts; | |
7017 | int nfonts; | |
2e6621ca | 7018 | int width_ratio; |
6ae2cd57 | 7019 | int *needs_overstrike; |
82641697 GM |
7020 | { |
7021 | char *font_name; | |
7022 | struct font_name *best; | |
334a2e2a | 7023 | int i, pt = 0; |
a08332c0 GM |
7024 | int specified[5]; |
7025 | int exact_p, avgwidth; | |
82641697 GM |
7026 | |
7027 | if (nfonts == 0) | |
7028 | return NULL; | |
7029 | ||
7030 | /* Make specified font attributes available in `specified', | |
7031 | indexed by sort order. */ | |
7032 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7033 | { | |
7034 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 7035 | |
82641697 GM |
7036 | if (xlfd_idx == XLFD_SWIDTH) |
7037 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
7038 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
7039 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
7040 | else if (xlfd_idx == XLFD_WEIGHT) | |
7041 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7042 | else if (xlfd_idx == XLFD_SLANT) | |
7043 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7044 | else | |
7045 | abort (); | |
7046 | } | |
7047 | ||
a08332c0 GM |
7048 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
7049 | ? 0 | |
2e6621ca | 7050 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 7051 | |
82641697 | 7052 | exact_p = 0; |
178c5d9c | 7053 | |
6ae2cd57 MB |
7054 | if (needs_overstrike) |
7055 | *needs_overstrike = 0; | |
7056 | ||
6c1195ab | 7057 | best = NULL; |
82641697 GM |
7058 | |
7059 | /* Find the best match among the non-scalable fonts. */ | |
41a9b76e | 7060 | for (i = 0; i < nfonts; ++i) |
6c1195ab RS |
7061 | if (!font_scalable_p (fonts + i) |
7062 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) | |
7063 | { | |
7064 | best = fonts + i; | |
82641697 | 7065 | |
6c1195ab RS |
7066 | exact_p = exact_face_match_p (specified, best, avgwidth); |
7067 | if (exact_p) | |
7068 | break; | |
7069 | } | |
82641697 GM |
7070 | |
7071 | /* Unless we found an exact match among non-scalable fonts, see if | |
7072 | we can find a better match among scalable fonts. */ | |
7073 | if (!exact_p) | |
7074 | { | |
7075 | /* A scalable font is better if | |
7076 | ||
7077 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 7078 | |
82641697 GM |
7079 | 2. the best non-scalable font doesn't have the required |
7080 | point size, and the scalable fonts weight, slant, swidth | |
7081 | isn't worse. */ | |
7082 | ||
7083 | int non_scalable_has_exact_height_p; | |
7084 | ||
7085 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
7086 | non_scalable_has_exact_height_p = 1; | |
7087 | else | |
7088 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 7089 | |
82641697 GM |
7090 | for (i = 0; i < nfonts; ++i) |
7091 | if (font_scalable_p (fonts + i)) | |
7092 | { | |
6c1195ab | 7093 | if (better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 7094 | || (!non_scalable_has_exact_height_p |
a08332c0 | 7095 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
6b61353c KH |
7096 | { |
7097 | non_scalable_has_exact_height_p = 1; | |
7098 | best = fonts + i; | |
7099 | } | |
82641697 GM |
7100 | } |
7101 | } | |
6ae2cd57 | 7102 | |
6c1195ab RS |
7103 | /* We should have found SOME font. */ |
7104 | if (best == NULL) | |
7105 | abort (); | |
6ae2cd57 | 7106 | |
ccd97b56 RS |
7107 | if (! exact_p && needs_overstrike) |
7108 | { | |
7109 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
7110 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
7111 | ||
7112 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
7113 | { | |
7114 | /* We want a bold font, but didn't get one; try to use | |
7115 | overstriking instead to simulate bold-face. However, | |
234b59d7 | 7116 | don't overstrike an already-bold font unless the |
ccd97b56 RS |
7117 | desired weight grossly exceeds the available weight. */ |
7118 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
234b59d7 | 7119 | *needs_overstrike = (want_weight - got_weight) > 2; |
ccd97b56 RS |
7120 | else |
7121 | *needs_overstrike = 1; | |
6ae2cd57 | 7122 | } |
82641697 GM |
7123 | } |
7124 | ||
7125 | if (font_scalable_p (best)) | |
7126 | font_name = build_scalable_font_name (f, best, pt); | |
7127 | else | |
7128 | font_name = build_font_name (best); | |
178c5d9c | 7129 | |
82641697 GM |
7130 | /* Free font_name structures. */ |
7131 | free_font_names (fonts, nfonts); | |
178c5d9c | 7132 | |
82641697 GM |
7133 | return font_name; |
7134 | } | |
7135 | ||
7136 | ||
3cf80731 SM |
7137 | /* Get a list of matching fonts on frame F, considering FAMILY |
7138 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
7139 | |
7140 | FAMILY is the font family whose alternatives are considered. | |
7141 | ||
7142 | REGISTRY, if a string, specifies a font registry and encoding to | |
7143 | match. A value of nil means include fonts of any registry and | |
7144 | encoding. | |
177c0ea7 | 7145 | |
4a529c42 GM |
7146 | Return in *FONTS a pointer to a vector of font_name structures for |
7147 | the fonts matched. Value is the number of fonts found. */ | |
7148 | ||
7149 | static int | |
7150 | try_alternative_families (f, family, registry, fonts) | |
7151 | struct frame *f; | |
7152 | Lisp_Object family, registry; | |
7153 | struct font_name **fonts; | |
7154 | { | |
7155 | Lisp_Object alter; | |
7156 | int nfonts = 0; | |
7157 | ||
3cf80731 SM |
7158 | nfonts = font_list (f, Qnil, family, registry, fonts); |
7159 | if (nfonts == 0) | |
4a529c42 | 7160 | { |
3cf80731 SM |
7161 | /* Try alternative font families. */ |
7162 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
7163 | if (CONSP (alter)) | |
7164 | { | |
7165 | for (alter = XCDR (alter); | |
7166 | CONSP (alter) && nfonts == 0; | |
7167 | alter = XCDR (alter)) | |
7168 | { | |
7169 | if (STRINGP (XCAR (alter))) | |
7170 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
7171 | } | |
7172 | } | |
177c0ea7 | 7173 | |
f9a45bb3 KH |
7174 | /* Try all scalable fonts before giving up. */ |
7175 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 7176 | { |
331379bf | 7177 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
7178 | specbind (Qscalable_fonts_allowed, Qt); |
7179 | nfonts = try_alternative_families (f, family, registry, fonts); | |
7180 | unbind_to (count, Qnil); | |
4a529c42 GM |
7181 | } |
7182 | } | |
4a529c42 GM |
7183 | return nfonts; |
7184 | } | |
7185 | ||
7186 | ||
702a1e8e GM |
7187 | /* Get a list of matching fonts on frame F. |
7188 | ||
af53b43c KH |
7189 | PATTERN, if a string, specifies a font name pattern to match while |
7190 | ignoring FAMILY and REGISTRY. | |
702a1e8e | 7191 | |
af53b43c | 7192 | FAMILY, if a list, specifies a list of font families to try. |
177c0ea7 | 7193 | |
af53b43c KH |
7194 | REGISTRY, if a list, specifies a list of font registries and |
7195 | encodinging to try. | |
54580ab2 | 7196 | |
702a1e8e GM |
7197 | Return in *FONTS a pointer to a vector of font_name structures for |
7198 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
7199 | |
7200 | static int | |
af53b43c | 7201 | try_font_list (f, pattern, family, registry, fonts) |
82641697 | 7202 | struct frame *f; |
a55a1dc6 | 7203 | Lisp_Object pattern, family, registry; |
82641697 GM |
7204 | struct font_name **fonts; |
7205 | { | |
4a529c42 | 7206 | int nfonts = 0; |
3cf80731 | 7207 | |
af53b43c | 7208 | if (STRINGP (pattern)) |
bb229eec KH |
7209 | { |
7210 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7211 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
7212 | { | |
7213 | int count = SPECPDL_INDEX (); | |
7214 | specbind (Qscalable_fonts_allowed, Qt); | |
7215 | nfonts = font_list (f, pattern, Qnil, Qnil, fonts); | |
7216 | unbind_to (count, Qnil); | |
7217 | } | |
7218 | } | |
af53b43c | 7219 | else |
82641697 | 7220 | { |
af53b43c | 7221 | Lisp_Object tail; |
f00691a3 | 7222 | |
af53b43c KH |
7223 | if (NILP (family)) |
7224 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
3cf80731 | 7225 | else |
af53b43c KH |
7226 | for (tail = family; ! nfonts && CONSP (tail); tail = XCDR (tail)) |
7227 | nfonts = try_alternative_families (f, XCAR (tail), registry, fonts); | |
54580ab2 | 7228 | |
af53b43c KH |
7229 | /* Try font family of the default face or "fixed". */ |
7230 | if (nfonts == 0 && !NILP (family)) | |
7231 | { | |
7232 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7233 | if (default_face) | |
7234 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
7235 | else | |
7236 | family = build_string ("fixed"); | |
8f924df7 | 7237 | nfonts = try_alternative_families (f, family, registry, fonts); |
af53b43c | 7238 | } |
178c5d9c | 7239 | |
af53b43c KH |
7240 | /* Try any family with the given registry. */ |
7241 | if (nfonts == 0 && !NILP (family)) | |
8f924df7 | 7242 | nfonts = try_alternative_families (f, Qnil, registry, fonts); |
82641697 | 7243 | } |
177c0ea7 | 7244 | |
82641697 GM |
7245 | return nfonts; |
7246 | } | |
7247 | ||
82641697 | 7248 | |
39506348 KH |
7249 | /* Return the fontset id of the base fontset name or alias name given |
7250 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
7251 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
7252 | |
7253 | static int | |
39506348 | 7254 | face_fontset (attrs) |
82641697 GM |
7255 | Lisp_Object *attrs; |
7256 | { | |
39506348 | 7257 | Lisp_Object name; |
178c5d9c | 7258 | |
763bc839 | 7259 | name = attrs[LFACE_FONTSET_INDEX]; |
39506348 KH |
7260 | if (!STRINGP (name)) |
7261 | return -1; | |
7262 | return fs_query_fontset (name, 0); | |
82641697 GM |
7263 | } |
7264 | ||
7265 | ||
af53b43c | 7266 | /* Choose a name of font to use on frame F to display characters with |
39506348 | 7267 | Lisp face attributes specified by ATTRS. The font name is |
af53b43c KH |
7268 | determined by the font-related attributes in ATTRS and FONT-SPEC |
7269 | (if specified). | |
6ae2cd57 | 7270 | |
af53b43c | 7271 | When we are choosing a font for ASCII characters, FONT-SPEC is |
db3aa8c3 KH |
7272 | always nil. Otherwise FONT-SPEC is an object created by |
7273 | `font-spec' or a string specifying a font name pattern. | |
82641697 | 7274 | |
8f924df7 KH |
7275 | If NEEDS_OVERSTRIKE is not NULL, a boolean is returned in it to |
7276 | indicate whether the resulting font should be drawn using | |
7277 | overstrike to simulate bold-face. | |
7278 | ||
af53b43c KH |
7279 | Value is the font name which is allocated from the heap and must be |
7280 | freed by the caller. */ | |
7281 | ||
7282 | char * | |
8f924df7 | 7283 | choose_face_font (f, attrs, font_spec, needs_overstrike) |
82641697 GM |
7284 | struct frame *f; |
7285 | Lisp_Object *attrs; | |
af53b43c | 7286 | Lisp_Object font_spec; |
6ae2cd57 | 7287 | int *needs_overstrike; |
82641697 | 7288 | { |
af53b43c | 7289 | Lisp_Object pattern, family, adstyle, registry; |
82641697 | 7290 | char *font_name = NULL; |
82641697 | 7291 | struct font_name *fonts; |
af53b43c | 7292 | int nfonts; |
178c5d9c | 7293 | |
774666fb MB |
7294 | if (needs_overstrike) |
7295 | *needs_overstrike = 0; | |
7296 | ||
af53b43c KH |
7297 | /* If we are choosing an ASCII font and a font name is explicitly |
7298 | specified in ATTRS, return it. */ | |
af53b43c | 7299 | if (NILP (font_spec) && STRINGP (attrs[LFACE_FONT_INDEX])) |
8f924df7 | 7300 | return xstrdup (SDATA (attrs[LFACE_FONT_INDEX])); |
81b39386 | 7301 | |
af53b43c | 7302 | if (NILP (attrs[LFACE_FAMILY_INDEX])) |
81b39386 | 7303 | family = Qnil; |
af53b43c KH |
7304 | else |
7305 | family = Fcons (attrs[LFACE_FAMILY_INDEX], Qnil); | |
7306 | ||
154c2d39 KH |
7307 | /* Decide FAMILY, ADSTYLE, and REGISTRY from FONT_SPEC. But, |
7308 | ADSTYLE is not used in the font selector for the moment. */ | |
af53b43c | 7309 | if (VECTORP (font_spec)) |
39506348 | 7310 | { |
af53b43c | 7311 | pattern = Qnil; |
db3aa8c3 KH |
7312 | if (! NILP (AREF (font_spec, FONT_FAMILY_INDEX))) |
7313 | family = Fcons (SYMBOL_NAME (AREF (font_spec, FONT_FAMILY_INDEX)), | |
7314 | family); | |
7315 | adstyle = AREF (font_spec, FONT_ADSTYLE_INDEX); | |
7316 | registry = Fcons (SYMBOL_NAME (AREF (font_spec, FONT_REGISTRY_INDEX)), | |
7317 | Qnil); | |
af53b43c KH |
7318 | } |
7319 | else if (STRINGP (font_spec)) | |
7320 | { | |
7321 | pattern = font_spec; | |
7322 | family = Qnil; | |
7323 | adstyle = Qnil; | |
7324 | registry = Qnil; | |
7325 | } | |
7326 | else | |
7327 | { | |
154c2d39 KH |
7328 | /* We are choosing an ASCII font. By default, use the registry |
7329 | name "iso8859-1". But, if the registry name of the ASCII | |
7330 | font specified in the fontset of ATTRS is not "iso8859-1" | |
7331 | (e.g "iso10646-1"), use also that name with higher | |
7332 | priority. */ | |
7333 | int fontset = face_fontset (attrs); | |
7334 | Lisp_Object ascii; | |
7335 | int len; | |
7336 | struct font_name font; | |
7337 | ||
af53b43c KH |
7338 | pattern = Qnil; |
7339 | adstyle = Qnil; | |
154c2d39 KH |
7340 | registry = Fcons (build_string ("iso8859-1"), Qnil); |
7341 | ||
7342 | ascii = fontset_ascii (fontset); | |
8f924df7 | 7343 | len = SBYTES (ascii); |
154c2d39 | 7344 | if (len < 9 |
8f924df7 | 7345 | || strcmp (SDATA (ascii) + len - 9, "iso8859-1")) |
154c2d39 KH |
7346 | { |
7347 | font.name = LSTRDUPA (ascii); | |
7348 | /* Check if the name is in XLFD. */ | |
7349 | if (split_font_name (f, &font, 0)) | |
7350 | { | |
7351 | font.fields[XLFD_ENCODING][-1] = '-'; | |
7352 | registry = Fcons (build_string (font.fields[XLFD_REGISTRY]), | |
7353 | registry); | |
7354 | } | |
7355 | } | |
39506348 | 7356 | } |
82641697 | 7357 | |
178c5d9c | 7358 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 7359 | best match for the specified face attributes from it. */ |
af53b43c | 7360 | nfonts = try_font_list (f, pattern, family, registry, &fonts); |
8f924df7 | 7361 | font_name = best_matching_font (f, attrs, fonts, nfonts, NILP (font_spec), |
6ae2cd57 | 7362 | needs_overstrike); |
82641697 GM |
7363 | return font_name; |
7364 | } | |
7365 | ||
c3cee013 | 7366 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7367 | |
7368 | ||
7369 | \f | |
7370 | /*********************************************************************** | |
7371 | Face Realization | |
7372 | ***********************************************************************/ | |
7373 | ||
7374 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
7375 | of F don't contain enough information needed to realize the default | |
7376 | face. */ | |
7377 | ||
7378 | static int | |
7379 | realize_basic_faces (f) | |
7380 | struct frame *f; | |
7381 | { | |
7382 | int success_p = 0; | |
331379bf | 7383 | int count = SPECPDL_INDEX (); |
17e8204b | 7384 | |
04386463 GM |
7385 | /* Block input here so that we won't be surprised by an X expose |
7386 | event, for instance, without having the faces set up. */ | |
17e8204b | 7387 | BLOCK_INPUT; |
eeffb293 | 7388 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 7389 | |
82641697 GM |
7390 | if (realize_default_face (f)) |
7391 | { | |
92610620 | 7392 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 7393 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 7394 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 7395 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 7396 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
7397 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
7398 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
7399 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
7400 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 7401 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 7402 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 7403 | |
b5de343d | 7404 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 7405 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 7406 | { |
ceeda019 | 7407 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 7408 | #ifdef USE_X_TOOLKIT |
daf01701 KL |
7409 | if (FRAME_WINDOW_P (f)) |
7410 | x_update_menu_appearance (f); | |
a03ad468 | 7411 | #endif |
563f68f1 | 7412 | } |
177c0ea7 | 7413 | |
82641697 GM |
7414 | success_p = 1; |
7415 | } | |
7416 | ||
eeffb293 | 7417 | unbind_to (count, Qnil); |
17e8204b | 7418 | UNBLOCK_INPUT; |
82641697 GM |
7419 | return success_p; |
7420 | } | |
7421 | ||
7422 | ||
7423 | /* Realize the default face on frame F. If the face is not fully | |
7424 | specified, make it fully-specified. Attributes of the default face | |
7425 | that are not explicitly specified are taken from frame parameters. */ | |
7426 | ||
7427 | static int | |
7428 | realize_default_face (f) | |
7429 | struct frame *f; | |
7430 | { | |
7431 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7432 | Lisp_Object lface; | |
7433 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
7434 | Lisp_Object frame_font; |
7435 | struct face *face; | |
82641697 GM |
7436 | |
7437 | /* If the `default' face is not yet known, create it. */ | |
7438 | lface = lface_from_face_name (f, Qdefault, 0); | |
7439 | if (NILP (lface)) | |
07446869 GM |
7440 | { |
7441 | Lisp_Object frame; | |
7442 | XSETFRAME (frame, f); | |
7443 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
7444 | } | |
7445 | ||
82641697 | 7446 | |
c3cee013 JR |
7447 | #ifdef HAVE_WINDOW_SYSTEM |
7448 | if (FRAME_WINDOW_P (f)) | |
82641697 | 7449 | { |
f4d3bea3 KH |
7450 | #ifdef USE_FONT_BACKEND |
7451 | if (enable_font_backend) | |
7452 | { | |
7453 | frame_font = font_find_object (FRAME_FONT_OBJECT (f)); | |
7454 | xassert (FONT_OBJECT_P (frame_font)); | |
7455 | set_lface_from_font_and_fontset (f, lface, frame_font, | |
7456 | FRAME_FONTSET (f), | |
7457 | f->default_face_done_p); | |
7458 | } | |
7459 | else | |
7460 | { | |
7461 | #endif /* USE_FONT_BACKEND */ | |
82641697 GM |
7462 | /* Set frame_font to the value of the `font' frame parameter. */ |
7463 | frame_font = Fassq (Qfont, f->param_alist); | |
7464 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
7465 | frame_font = XCDR (frame_font); | |
a5f696ac JD |
7466 | set_lface_from_font_name (f, lface, frame_font, |
7467 | f->default_face_done_p, 1); | |
f4d3bea3 KH |
7468 | #ifdef USE_FONT_BACKEND |
7469 | } | |
7470 | #endif /* USE_FONT_BACKEND */ | |
a5f696ac | 7471 | f->default_face_done_p = 1; |
82641697 | 7472 | } |
c3cee013 | 7473 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 7474 | |
44747bd0 | 7475 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
7476 | { |
7477 | LFACE_FAMILY (lface) = build_string ("default"); | |
7478 | LFACE_SWIDTH (lface) = Qnormal; | |
7479 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
7480 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
7481 | LFACE_WEIGHT (lface) = Qnormal; | |
7482 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
7483 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 7484 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 7485 | } |
178c5d9c | 7486 | |
82641697 GM |
7487 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
7488 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 7489 | |
82641697 GM |
7490 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
7491 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 7492 | |
82641697 GM |
7493 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
7494 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 7495 | |
82641697 GM |
7496 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
7497 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 7498 | |
82641697 GM |
7499 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
7500 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 7501 | |
82641697 GM |
7502 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
7503 | { | |
7504 | /* This function is called so early that colors are not yet | |
7505 | set in the frame parameter list. */ | |
7506 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 7507 | |
82641697 GM |
7508 | if (CONSP (color) && STRINGP (XCDR (color))) |
7509 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 7510 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7511 | return 0; |
3224dac1 | 7512 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7513 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 7514 | else |
82641697 GM |
7515 | abort (); |
7516 | } | |
178c5d9c | 7517 | |
82641697 GM |
7518 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
7519 | { | |
7520 | /* This function is called so early that colors are not yet | |
7521 | set in the frame parameter list. */ | |
7522 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
7523 | if (CONSP (color) && STRINGP (XCDR (color))) | |
7524 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 7525 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7526 | return 0; |
3224dac1 | 7527 | else if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7528 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 7529 | else |
82641697 GM |
7530 | abort (); |
7531 | } | |
178c5d9c | 7532 | |
82641697 GM |
7533 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
7534 | LFACE_STIPPLE (lface) = Qnil; | |
7535 | ||
7536 | /* Realize the face; it must be fully-specified now. */ | |
7537 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
7538 | check_lface (lface); | |
7539 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
af53b43c | 7540 | face = realize_face (c, attrs, DEFAULT_FACE_ID); |
4da9c136 KH |
7541 | |
7542 | #ifdef HAVE_WINDOW_SYSTEM | |
41a9b76e | 7543 | #ifdef HAVE_X_WINDOWS |
361c0d6e | 7544 | if (FRAME_X_P (f) && face->font != FRAME_FONT (f)) |
73158a39 CY |
7545 | { |
7546 | /* This can happen when making a frame on a display that does | |
974b73e8 | 7547 | not support the default font. */ |
73158a39 | 7548 | if (!face->font) |
974b73e8 KL |
7549 | return 0; |
7550 | ||
73158a39 | 7551 | /* Otherwise, the font specified for the frame was not |
974b73e8 KL |
7552 | acceptable as a font for the default face (perhaps because |
7553 | auto-scaled fonts are rejected), so we must adjust the frame | |
7554 | font. */ | |
73158a39 CY |
7555 | x_set_font (f, build_string (face->font_name), Qnil); |
7556 | } | |
4da9c136 KH |
7557 | #endif /* HAVE_X_WINDOWS */ |
7558 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7559 | return 1; |
7560 | } | |
7561 | ||
7562 | ||
7563 | /* Realize basic faces other than the default face in face cache C. | |
7564 | SYMBOL is the face name, ID is the face id the realized face must | |
7565 | have. The default face must have been realized already. */ | |
7566 | ||
7567 | static void | |
7568 | realize_named_face (f, symbol, id) | |
7569 | struct frame *f; | |
7570 | Lisp_Object symbol; | |
7571 | int id; | |
7572 | { | |
e7d7fd8c | 7573 | struct face_cache *c = FRAME_FACE_CACHE (f); |
82641697 GM |
7574 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); |
7575 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
e7d7fd8c MB |
7576 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; |
7577 | struct face *new_face; | |
82641697 GM |
7578 | |
7579 | /* The default face must exist and be fully specified. */ | |
e7d7fd8c | 7580 | get_lface_attributes (f, Qdefault, attrs, 1); |
82641697 GM |
7581 | check_lface_attrs (attrs); |
7582 | xassert (lface_fully_specified_p (attrs)); | |
7583 | ||
e7d7fd8c | 7584 | /* If SYMBOL isn't know as a face, create it. */ |
82641697 GM |
7585 | if (NILP (lface)) |
7586 | { | |
7587 | Lisp_Object frame; | |
7588 | XSETFRAME (frame, f); | |
7589 | lface = Finternal_make_lisp_face (symbol, frame); | |
7590 | } | |
7591 | ||
7592 | /* Merge SYMBOL's face with the default face. */ | |
e7d7fd8c MB |
7593 | get_lface_attributes (f, symbol, symbol_attrs, 1); |
7594 | merge_face_vectors (f, symbol_attrs, attrs, 0); | |
7595 | ||
7596 | /* Realize the face. */ | |
7597 | new_face = realize_face (c, attrs, id); | |
82641697 GM |
7598 | } |
7599 | ||
7600 | ||
7601 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7602 | cache CACHE for ASCII characters. If FORMER_FACE_ID is |
7603 | non-negative, it is an ID of face to remove before caching the new | |
7604 | face. Value is a pointer to the newly created realized face. */ | |
82641697 GM |
7605 | |
7606 | static struct face * | |
af53b43c | 7607 | realize_face (cache, attrs, former_face_id) |
39506348 | 7608 | struct face_cache *cache; |
82641697 | 7609 | Lisp_Object *attrs; |
39506348 | 7610 | int former_face_id; |
82641697 GM |
7611 | { |
7612 | struct face *face; | |
178c5d9c | 7613 | |
82641697 | 7614 | /* LFACE must be fully specified. */ |
39506348 | 7615 | xassert (cache != NULL); |
82641697 GM |
7616 | check_lface_attrs (attrs); |
7617 | ||
39506348 KH |
7618 | if (former_face_id >= 0 && cache->used > former_face_id) |
7619 | { | |
7620 | /* Remove the former face. */ | |
7621 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
7622 | uncache_face (cache, former_face); | |
7623 | free_realized_face (cache->f, former_face); | |
7624 | } | |
7625 | ||
7626 | if (FRAME_WINDOW_P (cache->f)) | |
af53b43c | 7627 | face = realize_x_face (cache, attrs); |
e689ec06 | 7628 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
af53b43c | 7629 | face = realize_tty_face (cache, attrs); |
d448e982 KL |
7630 | else if (FRAME_INITIAL_P (cache->f)) |
7631 | { | |
7632 | /* Create a dummy face. */ | |
7633 | face = make_realized_face (attrs); | |
7634 | } | |
82641697 GM |
7635 | else |
7636 | abort (); | |
7637 | ||
39506348 KH |
7638 | /* Insert the new face. */ |
7639 | cache_face (cache, face, lface_hash (attrs)); | |
af53b43c KH |
7640 | return face; |
7641 | } | |
7642 | ||
7643 | ||
8c6204de | 7644 | #ifdef HAVE_WINDOW_SYSTEM |
af53b43c KH |
7645 | /* Realize the fully-specified face that has the same attributes as |
7646 | BASE_FACE except for the font on frame F. If FONT_ID is not | |
7647 | negative, it is an ID number of an already opened font that should | |
7648 | be used by the face. If FONT_ID is negative, the face has no font, | |
7649 | i.e., characters are displayed by empty boxes. */ | |
7650 | ||
7651 | static struct face * | |
7652 | realize_non_ascii_face (f, font_id, base_face) | |
7653 | struct frame *f; | |
7654 | int font_id; | |
7655 | struct face *base_face; | |
7656 | { | |
7657 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
8f924df7 | 7658 | struct face *face; |
af53b43c KH |
7659 | struct font_info *font_info; |
7660 | ||
7661 | face = (struct face *) xmalloc (sizeof *face); | |
7662 | *face = *base_face; | |
7663 | face->gc = 0; | |
bdd10de6 JD |
7664 | #ifdef USE_FONT_BACKEND |
7665 | face->extra = NULL; | |
19d4ac93 | 7666 | #endif /* USE_FONT_BACKEND */ |
af53b43c KH |
7667 | |
7668 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
7669 | face->colors_copied_bitwise_p = 1; | |
7670 | ||
7671 | face->font_info_id = font_id; | |
7672 | if (font_id >= 0) | |
7673 | { | |
7674 | font_info = FONT_INFO_FROM_ID (f, font_id); | |
7675 | face->font = font_info->font; | |
7676 | face->font_name = font_info->full_name; | |
7677 | } | |
7678 | else | |
7679 | { | |
7680 | face->font = NULL; | |
7681 | face->font_name = NULL; | |
7682 | } | |
7683 | ||
7684 | face->gc = 0; | |
7685 | ||
7686 | cache_face (cache, face, face->hash); | |
7687 | ||
82641697 GM |
7688 | return face; |
7689 | } | |
8c6204de | 7690 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
7691 | |
7692 | ||
7693 | /* Realize the fully-specified face with attributes ATTRS in face | |
af53b43c KH |
7694 | cache CACHE for ASCII characters. Do it for X frame CACHE->f. If |
7695 | the new face doesn't share font with the default face, a fontname | |
7696 | is allocated from the heap and set in `font_name' of the new face, | |
7697 | but it is not yet loaded here. Value is a pointer to the newly | |
7698 | created realized face. */ | |
82641697 GM |
7699 | |
7700 | static struct face * | |
af53b43c | 7701 | realize_x_face (cache, attrs) |
39506348 | 7702 | struct face_cache *cache; |
82641697 | 7703 | Lisp_Object *attrs; |
82641697 | 7704 | { |
7d603e3f | 7705 | struct face *face = NULL; |
c3cee013 | 7706 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 7707 | struct face *default_face; |
78d2079c | 7708 | struct frame *f; |
82641697 | 7709 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 7710 | |
39506348 | 7711 | xassert (FRAME_WINDOW_P (cache->f)); |
82641697 GM |
7712 | |
7713 | /* Allocate a new realized face. */ | |
39506348 | 7714 | face = make_realized_face (attrs); |
af53b43c | 7715 | face->ascii_face = face; |
39506348 KH |
7716 | |
7717 | f = cache->f; | |
7718 | ||
82641697 GM |
7719 | /* Determine the font to use. Most of the time, the font will be |
7720 | the same as the font of the default face, so try that first. */ | |
7721 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7722 | if (default_face | |
82641697 GM |
7723 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
7724 | { | |
7725 | face->font = default_face->font; | |
82641697 | 7726 | face->font_info_id = default_face->font_info_id; |
426b2119 | 7727 | #ifdef USE_FONT_BACKEND |
19d4ac93 KH |
7728 | if (enable_font_backend) |
7729 | face->font_info = default_face->font_info; | |
426b2119 | 7730 | #endif /* USE_FONT_BACKEND */ |
82641697 | 7731 | face->font_name = default_face->font_name; |
39506348 | 7732 | face->fontset |
af53b43c | 7733 | = make_fontset_for_ascii_face (f, default_face->fontset, face); |
82641697 GM |
7734 | } |
7735 | else | |
7736 | { | |
39506348 | 7737 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
7738 | the base of a new realized fontset. Otherwise, use the same |
7739 | base fontset as of the default face. The base determines | |
7740 | registry and encoding of a font. It may also determine | |
7741 | foundry and family. The other fields of font name pattern | |
7742 | are constructed from ATTRS. */ | |
7743 | int fontset = face_fontset (attrs); | |
7744 | ||
af53b43c KH |
7745 | /* If we are realizing the default face, ATTRS should specify a |
7746 | fontset. In other words, if FONTSET is -1, we are not | |
7747 | realizing the default face, thus the default face should have | |
7748 | already been realized. */ | |
7749 | if (fontset == -1) | |
fc8c4797 | 7750 | fontset = default_face->fontset; |
af53b43c KH |
7751 | if (fontset == -1) |
7752 | abort (); | |
426b2119 KH |
7753 | #ifdef USE_FONT_BACKEND |
7754 | if (enable_font_backend) | |
7755 | font_load_for_face (f, face); | |
7756 | else | |
7757 | #endif /* USE_FONT_BACKEND */ | |
a2bc5bdd | 7758 | load_face_font (f, face); |
426b2119 KH |
7759 | if (face->font) |
7760 | face->fontset = make_fontset_for_ascii_face (f, fontset, face); | |
7761 | else | |
7762 | face->fontset = -1; | |
82641697 GM |
7763 | } |
7764 | ||
7765 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 7766 | |
82641697 | 7767 | load_face_colors (f, face, attrs); |
660ed669 | 7768 | |
82641697 GM |
7769 | /* Set up box. */ |
7770 | box = attrs[LFACE_BOX_INDEX]; | |
7771 | if (STRINGP (box)) | |
cb637678 | 7772 | { |
82641697 GM |
7773 | /* A simple box of line width 1 drawn in color given by |
7774 | the string. */ | |
7775 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
7776 | LFACE_BOX_INDEX); | |
7777 | face->box = FACE_SIMPLE_BOX; | |
7778 | face->box_line_width = 1; | |
cb637678 | 7779 | } |
82641697 | 7780 | else if (INTEGERP (box)) |
42120bc7 | 7781 | { |
82641697 GM |
7782 | /* Simple box of specified line width in foreground color of the |
7783 | face. */ | |
89624b8b | 7784 | xassert (XINT (box) != 0); |
82641697 | 7785 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 7786 | face->box_line_width = XINT (box); |
82641697 GM |
7787 | face->box_color = face->foreground; |
7788 | face->box_color_defaulted_p = 1; | |
7789 | } | |
7790 | else if (CONSP (box)) | |
7791 | { | |
7792 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
7793 | being one of `raised' or `sunken'. */ | |
7794 | face->box = FACE_SIMPLE_BOX; | |
7795 | face->box_color = face->foreground; | |
7796 | face->box_color_defaulted_p = 1; | |
7797 | face->box_line_width = 1; | |
7798 | ||
7799 | while (CONSP (box)) | |
42120bc7 | 7800 | { |
82641697 GM |
7801 | Lisp_Object keyword, value; |
7802 | ||
7803 | keyword = XCAR (box); | |
7804 | box = XCDR (box); | |
7805 | ||
7806 | if (!CONSP (box)) | |
7807 | break; | |
7808 | value = XCAR (box); | |
7809 | box = XCDR (box); | |
7810 | ||
7811 | if (EQ (keyword, QCline_width)) | |
7812 | { | |
89624b8b KH |
7813 | if (INTEGERP (value) && XINT (value) != 0) |
7814 | face->box_line_width = XINT (value); | |
82641697 GM |
7815 | } |
7816 | else if (EQ (keyword, QCcolor)) | |
7817 | { | |
7818 | if (STRINGP (value)) | |
7819 | { | |
7820 | face->box_color = load_color (f, face, value, | |
7821 | LFACE_BOX_INDEX); | |
7822 | face->use_box_color_for_shadows_p = 1; | |
7823 | } | |
7824 | } | |
7825 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 7826 | { |
82641697 GM |
7827 | if (EQ (value, Qreleased_button)) |
7828 | face->box = FACE_RAISED_BOX; | |
7829 | else if (EQ (value, Qpressed_button)) | |
7830 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 7831 | } |
42120bc7 RS |
7832 | } |
7833 | } | |
195f798e | 7834 | |
82641697 | 7835 | /* Text underline, overline, strike-through. */ |
178c5d9c | 7836 | |
82641697 | 7837 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 7838 | { |
82641697 GM |
7839 | /* Use default color (same as foreground color). */ |
7840 | face->underline_p = 1; | |
7841 | face->underline_defaulted_p = 1; | |
7842 | face->underline_color = 0; | |
7843 | } | |
7844 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 7845 | { |
82641697 GM |
7846 | /* Use specified color. */ |
7847 | face->underline_p = 1; | |
7848 | face->underline_defaulted_p = 0; | |
7849 | face->underline_color | |
7850 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
7851 | LFACE_UNDERLINE_INDEX); | |
195f798e | 7852 | } |
82641697 | 7853 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 7854 | { |
82641697 GM |
7855 | face->underline_p = 0; |
7856 | face->underline_defaulted_p = 0; | |
7857 | face->underline_color = 0; | |
7b00de84 JB |
7858 | } |
7859 | ||
82641697 GM |
7860 | overline = attrs[LFACE_OVERLINE_INDEX]; |
7861 | if (STRINGP (overline)) | |
cb637678 | 7862 | { |
82641697 GM |
7863 | face->overline_color |
7864 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
7865 | LFACE_OVERLINE_INDEX); | |
7866 | face->overline_p = 1; | |
cb637678 | 7867 | } |
82641697 | 7868 | else if (EQ (overline, Qt)) |
cb637678 | 7869 | { |
82641697 GM |
7870 | face->overline_color = face->foreground; |
7871 | face->overline_color_defaulted_p = 1; | |
7872 | face->overline_p = 1; | |
cb637678 JB |
7873 | } |
7874 | ||
82641697 GM |
7875 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
7876 | if (STRINGP (strike_through)) | |
7877 | { | |
7878 | face->strike_through_color | |
7879 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
7880 | LFACE_STRIKE_THROUGH_INDEX); | |
7881 | face->strike_through_p = 1; | |
7882 | } | |
7883 | else if (EQ (strike_through, Qt)) | |
7884 | { | |
7885 | face->strike_through_color = face->foreground; | |
7886 | face->strike_through_color_defaulted_p = 1; | |
7887 | face->strike_through_p = 1; | |
7888 | } | |
867dd159 | 7889 | |
82641697 GM |
7890 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
7891 | if (!NILP (stipple)) | |
7892 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
c3cee013 | 7893 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 | 7894 | |
82641697 | 7895 | return face; |
660ed669 JB |
7896 | } |
7897 | ||
729425b1 | 7898 | |
ae4b4ba5 GM |
7899 | /* Map a specified color of face FACE on frame F to a tty color index. |
7900 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
7901 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
7902 | default foreground/background colors. */ | |
7903 | ||
7904 | static void | |
7905 | map_tty_color (f, face, idx, defaulted) | |
7906 | struct frame *f; | |
7907 | struct face *face; | |
7908 | enum lface_attribute_index idx; | |
7909 | int *defaulted; | |
7910 | { | |
7911 | Lisp_Object frame, color, def; | |
7912 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
7913 | unsigned long default_pixel, default_other_pixel, pixel; | |
7914 | ||
7915 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
7916 | ||
7917 | if (foreground_p) | |
7918 | { | |
7919 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7920 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7921 | } | |
7922 | else | |
7923 | { | |
7924 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7925 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7926 | } | |
177c0ea7 | 7927 | |
ae4b4ba5 GM |
7928 | XSETFRAME (frame, f); |
7929 | color = face->lface[idx]; | |
177c0ea7 | 7930 | |
ae4b4ba5 | 7931 | if (STRINGP (color) |
d5db4077 | 7932 | && SCHARS (color) |
ae4b4ba5 GM |
7933 | && CONSP (Vtty_defined_color_alist) |
7934 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
7935 | CONSP (def))) | |
7936 | { | |
7937 | /* Associations in tty-defined-color-alist are of the form | |
7938 | (NAME INDEX R G B). We need the INDEX part. */ | |
7939 | pixel = XINT (XCAR (XCDR (def))); | |
7940 | } | |
7941 | ||
7942 | if (pixel == default_pixel && STRINGP (color)) | |
7943 | { | |
7944 | pixel = load_color (f, face, color, idx); | |
7945 | ||
8d05ec51 | 7946 | #ifdef MSDOS |
ae4b4ba5 GM |
7947 | /* If the foreground of the default face is the default color, |
7948 | use the foreground color defined by the frame. */ | |
ae4b4ba5 GM |
7949 | if (FRAME_MSDOS_P (f)) |
7950 | { | |
ae4b4ba5 GM |
7951 | if (pixel == default_pixel |
7952 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
7953 | { | |
7954 | if (foreground_p) | |
7955 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7956 | else | |
7957 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7958 | face->lface[idx] = tty_color_name (f, pixel); | |
7959 | *defaulted = 1; | |
7960 | } | |
7961 | else if (pixel == default_other_pixel) | |
7962 | { | |
7963 | if (foreground_p) | |
7964 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7965 | else | |
7966 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7967 | face->lface[idx] = tty_color_name (f, pixel); | |
7968 | *defaulted = 1; | |
7969 | } | |
8d05ec51 JR |
7970 | } |
7971 | #endif /* MSDOS */ | |
ae4b4ba5 GM |
7972 | } |
7973 | ||
7974 | if (foreground_p) | |
7975 | face->foreground = pixel; | |
7976 | else | |
7977 | face->background = pixel; | |
7978 | } | |
7979 | ||
7980 | ||
82641697 | 7981 | /* Realize the fully-specified face with attributes ATTRS in face |
af53b43c KH |
7982 | cache CACHE for ASCII characters. Do it for TTY frame CACHE->f. |
7983 | Value is a pointer to the newly created realized face. */ | |
a8517066 | 7984 | |
82641697 | 7985 | static struct face * |
af53b43c | 7986 | realize_tty_face (cache, attrs) |
39506348 | 7987 | struct face_cache *cache; |
82641697 | 7988 | Lisp_Object *attrs; |
82641697 GM |
7989 | { |
7990 | struct face *face; | |
7991 | int weight, slant; | |
2d764c78 | 7992 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7993 | struct frame *f = cache->f; |
729425b1 | 7994 | |
82641697 | 7995 | /* Frame must be a termcap frame. */ |
e689ec06 | 7996 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7997 | |
82641697 | 7998 | /* Allocate a new realized face. */ |
39506348 | 7999 | face = make_realized_face (attrs); |
e689ec06 | 8000 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 8001 | |
178c5d9c | 8002 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
8003 | dimmed text because we want italic text to appear differently |
8004 | and because dimmed text is probably used infrequently. */ | |
8005 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
8006 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
8007 | ||
8008 | if (weight > XLFD_WEIGHT_MEDIUM) | |
8009 | face->tty_bold_p = 1; | |
8010 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
8011 | face->tty_dim_p = 1; | |
8012 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
8013 | face->tty_underline_p = 1; | |
8014 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
8015 | face->tty_reverse_p = 1; | |
8016 | ||
8017 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
8018 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
8019 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 8020 | |
2d764c78 EZ |
8021 | /* Swap colors if face is inverse-video. If the colors are taken |
8022 | from the frame colors, they are already inverted, since the | |
8023 | frame-creation function calls x-handle-reverse-video. */ | |
8024 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
8025 | { |
8026 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
8027 | face->foreground = face->background; |
8028 | face->background = tem; | |
8029 | } | |
44747bd0 | 8030 | |
a4a76b61 GM |
8031 | if (tty_suppress_bold_inverse_default_colors_p |
8032 | && face->tty_bold_p | |
8033 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
8034 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
8035 | face->tty_bold_p = 0; | |
8036 | ||
82641697 | 8037 | return face; |
729425b1 | 8038 | } |
867dd159 | 8039 | |
82641697 | 8040 | |
a4a76b61 GM |
8041 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
8042 | Ftty_suppress_bold_inverse_default_colors, | |
8043 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 8044 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
8045 | SUPPRESS non-nil means suppress it. |
8046 | This affects bold faces on TTYs whose foreground is the default background | |
8047 | color of the display and whose background is the default foreground color. | |
8048 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
8049 | is non-nil. */) |
8050 | (suppress) | |
a4a76b61 GM |
8051 | Lisp_Object suppress; |
8052 | { | |
8053 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
8054 | ++face_change_count; | |
8055 | return suppress; | |
8056 | } | |
8057 | ||
8058 | ||
82641697 GM |
8059 | \f |
8060 | /*********************************************************************** | |
8061 | Computing Faces | |
8062 | ***********************************************************************/ | |
8063 | ||
8064 | /* Return the ID of the face to use to display character CH with face | |
8065 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
8066 | |
8067 | int | |
82641697 | 8068 | compute_char_face (f, ch, prop) |
2e16580f | 8069 | struct frame *f; |
82641697 GM |
8070 | int ch; |
8071 | Lisp_Object prop; | |
2e16580f | 8072 | { |
82641697 | 8073 | int face_id; |
39506348 KH |
8074 | |
8075 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 8076 | ch = 0; |
178c5d9c | 8077 | |
82641697 | 8078 | if (NILP (prop)) |
39506348 KH |
8079 | { |
8080 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
779c6fb6 | 8081 | face_id = FACE_FOR_CHAR (f, face, ch, -1, Qnil); |
39506348 | 8082 | } |
82641697 | 8083 | else |
2e16580f | 8084 | { |
82641697 GM |
8085 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
8086 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
8087 | bcopy (default_face->lface, attrs, sizeof attrs); | |
a0a23346 | 8088 | merge_face_ref (f, prop, attrs, 1, 0); |
af53b43c | 8089 | face_id = lookup_face (f, attrs); |
2e16580f RS |
8090 | } |
8091 | ||
82641697 | 8092 | return face_id; |
2e16580f | 8093 | } |
bc0db68d | 8094 | |
82641697 GM |
8095 | /* Return the face ID associated with buffer position POS for |
8096 | displaying ASCII characters. Return in *ENDPTR the position at | |
8097 | which a different face is needed, as far as text properties and | |
8098 | overlays are concerned. W is a window displaying current_buffer. | |
8099 | ||
8100 | REGION_BEG, REGION_END delimit the region, so it can be | |
8101 | highlighted. | |
6f134486 | 8102 | |
82641697 GM |
8103 | LIMIT is a position not to scan beyond. That is to limit the time |
8104 | this function can take. | |
8105 | ||
8106 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
8107 | ||
39506348 | 8108 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 8109 | |
cb637678 | 8110 | int |
82641697 GM |
8111 | face_at_buffer_position (w, pos, region_beg, region_end, |
8112 | endptr, limit, mouse) | |
f211082d | 8113 | struct window *w; |
0f8b27ea SM |
8114 | EMACS_INT pos; |
8115 | EMACS_INT region_beg, region_end; | |
8116 | EMACS_INT *endptr; | |
8117 | EMACS_INT limit; | |
6f134486 | 8118 | int mouse; |
7b7739b1 | 8119 | { |
82641697 GM |
8120 | struct frame *f = XFRAME (w->frame); |
8121 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 8122 | Lisp_Object prop, position; |
82641697 | 8123 | int i, noverlays; |
7b7739b1 | 8124 | Lisp_Object *overlay_vec; |
f211082d | 8125 | Lisp_Object frame; |
0f8b27ea | 8126 | EMACS_INT endpos; |
82641697 GM |
8127 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
8128 | Lisp_Object limit1, end; | |
8129 | struct face *default_face; | |
f6b98e0b JB |
8130 | |
8131 | /* W must display the current buffer. We could write this function | |
8132 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 8133 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 8134 | |
ac22a6c4 | 8135 | XSETFRAME (frame, f); |
82641697 | 8136 | XSETFASTINT (position, pos); |
7b7739b1 | 8137 | |
f6b98e0b | 8138 | endpos = ZV; |
bc0db68d RS |
8139 | if (pos < region_beg && region_beg < endpos) |
8140 | endpos = region_beg; | |
f6b98e0b | 8141 | |
82641697 GM |
8142 | /* Get the `face' or `mouse_face' text property at POS, and |
8143 | determine the next position at which the property changes. */ | |
6f134486 | 8144 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
8145 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
8146 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
8147 | if (INTEGERP (end)) | |
8148 | endpos = XINT (end); | |
6f134486 | 8149 | |
82641697 | 8150 | /* Look at properties from overlays. */ |
b6d40e46 | 8151 | { |
a2bc5bdd | 8152 | EMACS_INT next_overlay; |
b6d40e46 | 8153 | |
0bc90bba | 8154 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
8155 | if (next_overlay < endpos) |
8156 | endpos = next_overlay; | |
b6d40e46 JB |
8157 | } |
8158 | ||
8159 | *endptr = endpos; | |
7b7739b1 | 8160 | |
82641697 | 8161 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 8162 | |
82641697 GM |
8163 | /* Optimize common cases where we can use the default face. */ |
8164 | if (noverlays == 0 | |
8165 | && NILP (prop) | |
39506348 | 8166 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
8167 | return DEFAULT_FACE_ID; |
8168 | ||
8169 | /* Begin with attributes from the default face. */ | |
8170 | bcopy (default_face->lface, attrs, sizeof attrs); | |
8171 | ||
8172 | /* Merge in attributes specified via text properties. */ | |
8173 | if (!NILP (prop)) | |
a0a23346 | 8174 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8175 | |
8176 | /* Now merge the overlay data. */ | |
18195655 | 8177 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 8178 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 8179 | { |
18195655 RS |
8180 | Lisp_Object oend; |
8181 | int oendpos; | |
8182 | ||
8183 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 8184 | if (!NILP (prop)) |
a0a23346 | 8185 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
8186 | |
8187 | oend = OVERLAY_END (overlay_vec[i]); | |
8188 | oendpos = OVERLAY_POSITION (oend); | |
8189 | if (oendpos < endpos) | |
8190 | endpos = oendpos; | |
8191 | } | |
8192 | ||
82641697 | 8193 | /* If in the region, merge in the region face. */ |
18195655 RS |
8194 | if (pos >= region_beg && pos < region_end) |
8195 | { | |
a0a23346 | 8196 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 8197 | |
18195655 RS |
8198 | if (region_end < endpos) |
8199 | endpos = region_end; | |
18195655 RS |
8200 | } |
8201 | ||
8202 | *endptr = endpos; | |
8203 | ||
82641697 | 8204 | /* Look up a realized face with the given face attributes, |
39506348 | 8205 | or realize a new one for ASCII characters. */ |
af53b43c | 8206 | return lookup_face (f, attrs); |
18195655 RS |
8207 | } |
8208 | ||
a193ecf1 RS |
8209 | /* Return the face ID at buffer position POS for displaying ASCII |
8210 | characters associated with overlay strings for overlay OVERLAY. | |
8211 | ||
8212 | Like face_at_buffer_position except for OVERLAY. Currently it | |
8213 | simply disregards the `face' properties of all overlays. */ | |
03e1d617 RS |
8214 | |
8215 | int | |
a193ecf1 RS |
8216 | face_for_overlay_string (w, pos, region_beg, region_end, |
8217 | endptr, limit, mouse, overlay) | |
03e1d617 | 8218 | struct window *w; |
0f8b27ea SM |
8219 | EMACS_INT pos; |
8220 | EMACS_INT region_beg, region_end; | |
8221 | EMACS_INT *endptr; | |
8222 | EMACS_INT limit; | |
03e1d617 | 8223 | int mouse; |
a193ecf1 | 8224 | Lisp_Object overlay; |
03e1d617 RS |
8225 | { |
8226 | struct frame *f = XFRAME (w->frame); | |
8227 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8228 | Lisp_Object prop, position; | |
03e1d617 RS |
8229 | Lisp_Object frame; |
8230 | int endpos; | |
8231 | Lisp_Object propname = mouse ? Qmouse_face : Qface; | |
8232 | Lisp_Object limit1, end; | |
8233 | struct face *default_face; | |
8234 | ||
8235 | /* W must display the current buffer. We could write this function | |
8236 | to use the frame and buffer of W, but right now it doesn't. */ | |
8237 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ | |
8238 | ||
8239 | XSETFRAME (frame, f); | |
8240 | XSETFASTINT (position, pos); | |
8241 | ||
8242 | endpos = ZV; | |
8243 | if (pos < region_beg && region_beg < endpos) | |
8244 | endpos = region_beg; | |
8245 | ||
8246 | /* Get the `face' or `mouse_face' text property at POS, and | |
8247 | determine the next position at which the property changes. */ | |
8248 | prop = Fget_text_property (position, propname, w->buffer); | |
8249 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); | |
8250 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
8251 | if (INTEGERP (end)) | |
8252 | endpos = XINT (end); | |
8253 | ||
8254 | *endptr = endpos; | |
8255 | ||
8256 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
8257 | ||
8258 | /* Optimize common cases where we can use the default face. */ | |
8259 | if (NILP (prop) | |
8260 | && !(pos >= region_beg && pos < region_end)) | |
8261 | return DEFAULT_FACE_ID; | |
8262 | ||
8263 | /* Begin with attributes from the default face. */ | |
8264 | bcopy (default_face->lface, attrs, sizeof attrs); | |
8265 | ||
8266 | /* Merge in attributes specified via text properties. */ | |
8267 | if (!NILP (prop)) | |
8268 | merge_face_ref (f, prop, attrs, 1, 0); | |
8269 | ||
8270 | /* If in the region, merge in the region face. */ | |
8271 | if (pos >= region_beg && pos < region_end) | |
8272 | { | |
8273 | merge_named_face (f, Qregion, attrs, 0); | |
8274 | ||
8275 | if (region_end < endpos) | |
8276 | endpos = region_end; | |
8277 | } | |
8278 | ||
8279 | *endptr = endpos; | |
8280 | ||
8281 | /* Look up a realized face with the given face attributes, | |
8282 | or realize a new one for ASCII characters. */ | |
ce9c2e7b | 8283 | return lookup_face (f, attrs); |
03e1d617 RS |
8284 | } |
8285 | ||
60573a90 | 8286 | |
82641697 | 8287 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 8288 | window W, for ASCII characters. |
7b7739b1 | 8289 | |
82641697 GM |
8290 | If STRING is an overlay string, it comes from position BUFPOS in |
8291 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
8292 | not an overlay string. W must display the current buffer. | |
8293 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
8294 | region; both are -1 if no region is visible. |
8295 | ||
8296 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
8297 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 8298 | |
48a4ca99 GM |
8299 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
8300 | ||
82641697 GM |
8301 | Set *ENDPTR to the next position where to check for faces in |
8302 | STRING; -1 if the face is constant from POS to the end of the | |
8303 | string. | |
18195655 | 8304 | |
82641697 | 8305 | Value is the id of the face to use. The face returned is suitable |
39506348 | 8306 | for displaying ASCII characters. */ |
fffc2367 | 8307 | |
82641697 GM |
8308 | int |
8309 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 8310 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
8311 | struct window *w; |
8312 | Lisp_Object string; | |
0f8b27ea SM |
8313 | EMACS_INT pos, bufpos; |
8314 | EMACS_INT region_beg, region_end; | |
8315 | EMACS_INT *endptr; | |
82641697 | 8316 | enum face_id base_face_id; |
48a4ca99 | 8317 | int mouse_p; |
660ed669 | 8318 | { |
82641697 GM |
8319 | Lisp_Object prop, position, end, limit; |
8320 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
8321 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8322 | struct face *base_face; | |
8323 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 8324 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
8325 | |
8326 | /* Get the value of the face property at the current position within | |
8327 | STRING. Value is nil if there is no face property. */ | |
8328 | XSETFASTINT (position, pos); | |
48a4ca99 | 8329 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
8330 | |
8331 | /* Get the next position at which to check for faces. Value of end | |
8332 | is nil if face is constant all the way to the end of the string. | |
8333 | Otherwise it is a string position where to check faces next. | |
8334 | Limit is the maximum position up to which to check for property | |
8335 | changes in Fnext_single_property_change. Strings are usually | |
8336 | short, so set the limit to the end of the string. */ | |
d5db4077 | 8337 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 8338 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
8339 | if (INTEGERP (end)) |
8340 | *endptr = XFASTINT (end); | |
8341 | else | |
8342 | *endptr = -1; | |
8343 | ||
8344 | base_face = FACE_FROM_ID (f, base_face_id); | |
8345 | xassert (base_face); | |
8346 | ||
8347 | /* Optimize the default case that there is no face property and we | |
8348 | are not in the region. */ | |
8349 | if (NILP (prop) | |
8350 | && (base_face_id != DEFAULT_FACE_ID | |
8351 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
8352 | that the region doesn't have to be taken into account. */ | |
8353 | || bufpos <= 0 | |
8354 | || bufpos < region_beg | |
8355 | || bufpos >= region_end) | |
8356 | && (multibyte_p | |
8357 | /* We can't realize faces for different charsets differently | |
8358 | if we don't have fonts, so we can stop here if not working | |
8359 | on a window-system frame. */ | |
8360 | || !FRAME_WINDOW_P (f) | |
39506348 | 8361 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
8362 | return base_face->id; |
8363 | ||
8364 | /* Begin with attributes from the base face. */ | |
8365 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8366 | ||
8367 | /* Merge in attributes specified via text properties. */ | |
8368 | if (!NILP (prop)) | |
a0a23346 | 8369 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
8370 | |
8371 | /* If in the region, merge in the region face. */ | |
8372 | if (bufpos | |
8373 | && bufpos >= region_beg | |
8374 | && bufpos < region_end) | |
a0a23346 | 8375 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 8376 | |
82641697 | 8377 | /* Look up a realized face with the given face attributes, |
39506348 | 8378 | or realize a new one for ASCII characters. */ |
af53b43c | 8379 | return lookup_face (f, attrs); |
660ed669 JB |
8380 | } |
8381 | ||
8382 | ||
fd998c7f KS |
8383 | /* Merge a face into a realized face. |
8384 | ||
8385 | F is frame where faces are (to be) realized. | |
8386 | ||
dc91a0ed KS |
8387 | FACE_NAME is named face to merge. |
8388 | ||
8389 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
8390 | ||
8391 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
8392 | |
8393 | BASE_FACE_ID is realized face to merge into. | |
8394 | ||
dc91a0ed | 8395 | Return new face id. |
fd998c7f KS |
8396 | */ |
8397 | ||
8398 | int | |
dc91a0ed | 8399 | merge_faces (f, face_name, face_id, base_face_id) |
fd998c7f KS |
8400 | struct frame *f; |
8401 | Lisp_Object face_name; | |
8402 | int face_id, base_face_id; | |
8403 | { | |
8404 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
8405 | struct face *base_face; | |
8406 | ||
8407 | base_face = FACE_FROM_ID (f, base_face_id); | |
8408 | if (!base_face) | |
8409 | return base_face_id; | |
8410 | ||
dc91a0ed KS |
8411 | if (EQ (face_name, Qt)) |
8412 | { | |
8413 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
8414 | return base_face_id; | |
8415 | face_name = lface_id_to_name[face_id]; | |
5c538596 | 8416 | face_id = lookup_derived_face (f, face_name, base_face_id, 1); |
dc91a0ed KS |
8417 | if (face_id >= 0) |
8418 | return face_id; | |
8419 | return base_face_id; | |
8420 | } | |
8421 | ||
fd998c7f KS |
8422 | /* Begin with attributes from the base face. */ |
8423 | bcopy (base_face->lface, attrs, sizeof attrs); | |
8424 | ||
8425 | if (!NILP (face_name)) | |
8426 | { | |
8427 | if (!merge_named_face (f, face_name, attrs, 0)) | |
8428 | return base_face_id; | |
8429 | } | |
8430 | else | |
8431 | { | |
8432 | struct face *face; | |
dc91a0ed KS |
8433 | if (face_id < 0) |
8434 | return base_face_id; | |
fd998c7f KS |
8435 | face = FACE_FROM_ID (f, face_id); |
8436 | if (!face) | |
8437 | return base_face_id; | |
8438 | merge_face_vectors (f, face->lface, attrs, 0); | |
8439 | } | |
8440 | ||
8441 | /* Look up a realized face with the given face attributes, | |
8442 | or realize a new one for ASCII characters. */ | |
0e3ae538 | 8443 | return lookup_face (f, attrs); |
fd998c7f KS |
8444 | } |
8445 | ||
c115973b | 8446 | \f |
82641697 GM |
8447 | /*********************************************************************** |
8448 | Tests | |
8449 | ***********************************************************************/ | |
c115973b | 8450 | |
82641697 | 8451 | #if GLYPH_DEBUG |
c115973b | 8452 | |
82641697 | 8453 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 8454 | |
82641697 GM |
8455 | static void |
8456 | dump_realized_face (face) | |
8457 | struct face *face; | |
8458 | { | |
8459 | fprintf (stderr, "ID: %d\n", face->id); | |
8460 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 8461 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
8462 | #endif |
8463 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
8464 | face->foreground, | |
d5db4077 | 8465 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
8466 | fprintf (stderr, "background: 0x%lx (%s)\n", |
8467 | face->background, | |
d5db4077 | 8468 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
8469 | fprintf (stderr, "font_name: %s (%s)\n", |
8470 | face->font_name, | |
d5db4077 | 8471 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
8472 | #ifdef HAVE_X_WINDOWS |
8473 | fprintf (stderr, "font = %p\n", face->font); | |
8474 | #endif | |
8475 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
8476 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
8477 | fprintf (stderr, "underline: %d (%s)\n", | |
8478 | face->underline_p, | |
d5db4077 | 8479 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 | 8480 | fprintf (stderr, "hash: %d\n", face->hash); |
c115973b JB |
8481 | } |
8482 | ||
8483 | ||
7ee72033 MB |
8484 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
8485 | (n) | |
82641697 | 8486 | Lisp_Object n; |
c115973b | 8487 | { |
82641697 | 8488 | if (NILP (n)) |
c115973b | 8489 | { |
82641697 | 8490 | int i; |
178c5d9c | 8491 | |
82641697 GM |
8492 | fprintf (stderr, "font selection order: "); |
8493 | for (i = 0; i < DIM (font_sort_order); ++i) | |
8494 | fprintf (stderr, "%d ", font_sort_order[i]); | |
8495 | fprintf (stderr, "\n"); | |
8496 | ||
8497 | fprintf (stderr, "alternative fonts: "); | |
8498 | debug_print (Vface_alternative_font_family_alist); | |
8499 | fprintf (stderr, "\n"); | |
178c5d9c | 8500 | |
c0617987 | 8501 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 8502 | Fdump_face (make_number (i)); |
c115973b JB |
8503 | } |
8504 | else | |
f5e278c7 | 8505 | { |
82641697 | 8506 | struct face *face; |
b7826503 | 8507 | CHECK_NUMBER (n); |
c0617987 | 8508 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
8509 | if (face == NULL) |
8510 | error ("Not a valid face"); | |
8511 | dump_realized_face (face); | |
f5e278c7 | 8512 | } |
178c5d9c | 8513 | |
c115973b JB |
8514 | return Qnil; |
8515 | } | |
b5c53576 | 8516 | |
b5c53576 | 8517 | |
82641697 | 8518 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
8519 | 0, 0, 0, doc: /* */) |
8520 | () | |
b5c53576 | 8521 | { |
82641697 GM |
8522 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
8523 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
8524 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
8525 | return Qnil; | |
b5c53576 RS |
8526 | } |
8527 | ||
82641697 GM |
8528 | #endif /* GLYPH_DEBUG != 0 */ |
8529 | ||
b5c53576 | 8530 | |
c115973b | 8531 | \f |
82641697 GM |
8532 | /*********************************************************************** |
8533 | Initialization | |
8534 | ***********************************************************************/ | |
cb637678 | 8535 | |
c115973b | 8536 | void |
f211082d | 8537 | syms_of_xfaces () |
c115973b | 8538 | { |
f211082d JB |
8539 | Qface = intern ("face"); |
8540 | staticpro (&Qface); | |
46b00436 KS |
8541 | Qface_no_inherit = intern ("face-no-inherit"); |
8542 | staticpro (&Qface_no_inherit); | |
fef04523 GM |
8543 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
8544 | staticpro (&Qbitmap_spec_p); | |
c20577bc JL |
8545 | Qframe_set_background_mode = intern ("frame-set-background-mode"); |
8546 | staticpro (&Qframe_set_background_mode); | |
178c5d9c | 8547 | |
82641697 GM |
8548 | /* Lisp face attribute keywords. */ |
8549 | QCfamily = intern (":family"); | |
8550 | staticpro (&QCfamily); | |
8551 | QCheight = intern (":height"); | |
8552 | staticpro (&QCheight); | |
8553 | QCweight = intern (":weight"); | |
8554 | staticpro (&QCweight); | |
8555 | QCslant = intern (":slant"); | |
8556 | staticpro (&QCslant); | |
8557 | QCunderline = intern (":underline"); | |
8558 | staticpro (&QCunderline); | |
8559 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 8560 | staticpro (&QCinverse_video); |
82641697 GM |
8561 | QCreverse_video = intern (":reverse-video"); |
8562 | staticpro (&QCreverse_video); | |
8563 | QCforeground = intern (":foreground"); | |
8564 | staticpro (&QCforeground); | |
8565 | QCbackground = intern (":background"); | |
8566 | staticpro (&QCbackground); | |
3b8c0c70 | 8567 | QCstipple = intern (":stipple"); |
82641697 GM |
8568 | staticpro (&QCstipple); |
8569 | QCwidth = intern (":width"); | |
8570 | staticpro (&QCwidth); | |
8571 | QCfont = intern (":font"); | |
8572 | staticpro (&QCfont); | |
763bc839 KH |
8573 | QCfontset = intern (":fontset"); |
8574 | staticpro (&QCfontset); | |
82641697 GM |
8575 | QCbold = intern (":bold"); |
8576 | staticpro (&QCbold); | |
8577 | QCitalic = intern (":italic"); | |
8578 | staticpro (&QCitalic); | |
8579 | QCoverline = intern (":overline"); | |
8580 | staticpro (&QCoverline); | |
8581 | QCstrike_through = intern (":strike-through"); | |
8582 | staticpro (&QCstrike_through); | |
8583 | QCbox = intern (":box"); | |
8584 | staticpro (&QCbox); | |
2c20458f MB |
8585 | QCinherit = intern (":inherit"); |
8586 | staticpro (&QCinherit); | |
82641697 GM |
8587 | |
8588 | /* Symbols used for Lisp face attribute values. */ | |
8589 | QCcolor = intern (":color"); | |
8590 | staticpro (&QCcolor); | |
8591 | QCline_width = intern (":line-width"); | |
8592 | staticpro (&QCline_width); | |
8593 | QCstyle = intern (":style"); | |
8594 | staticpro (&QCstyle); | |
8595 | Qreleased_button = intern ("released-button"); | |
8596 | staticpro (&Qreleased_button); | |
8597 | Qpressed_button = intern ("pressed-button"); | |
8598 | staticpro (&Qpressed_button); | |
8599 | Qnormal = intern ("normal"); | |
8600 | staticpro (&Qnormal); | |
8601 | Qultra_light = intern ("ultra-light"); | |
8602 | staticpro (&Qultra_light); | |
8603 | Qextra_light = intern ("extra-light"); | |
8604 | staticpro (&Qextra_light); | |
8605 | Qlight = intern ("light"); | |
8606 | staticpro (&Qlight); | |
8607 | Qsemi_light = intern ("semi-light"); | |
8608 | staticpro (&Qsemi_light); | |
8609 | Qsemi_bold = intern ("semi-bold"); | |
8610 | staticpro (&Qsemi_bold); | |
8611 | Qbold = intern ("bold"); | |
8612 | staticpro (&Qbold); | |
8613 | Qextra_bold = intern ("extra-bold"); | |
8614 | staticpro (&Qextra_bold); | |
8615 | Qultra_bold = intern ("ultra-bold"); | |
8616 | staticpro (&Qultra_bold); | |
8617 | Qoblique = intern ("oblique"); | |
8618 | staticpro (&Qoblique); | |
8619 | Qitalic = intern ("italic"); | |
8620 | staticpro (&Qitalic); | |
8621 | Qreverse_oblique = intern ("reverse-oblique"); | |
8622 | staticpro (&Qreverse_oblique); | |
8623 | Qreverse_italic = intern ("reverse-italic"); | |
8624 | staticpro (&Qreverse_italic); | |
8625 | Qultra_condensed = intern ("ultra-condensed"); | |
8626 | staticpro (&Qultra_condensed); | |
8627 | Qextra_condensed = intern ("extra-condensed"); | |
8628 | staticpro (&Qextra_condensed); | |
8629 | Qcondensed = intern ("condensed"); | |
8630 | staticpro (&Qcondensed); | |
8631 | Qsemi_condensed = intern ("semi-condensed"); | |
8632 | staticpro (&Qsemi_condensed); | |
8633 | Qsemi_expanded = intern ("semi-expanded"); | |
8634 | staticpro (&Qsemi_expanded); | |
8635 | Qexpanded = intern ("expanded"); | |
8636 | staticpro (&Qexpanded); | |
8637 | Qextra_expanded = intern ("extra-expanded"); | |
8638 | staticpro (&Qextra_expanded); | |
8639 | Qultra_expanded = intern ("ultra-expanded"); | |
8640 | staticpro (&Qultra_expanded); | |
8641 | Qbackground_color = intern ("background-color"); | |
8642 | staticpro (&Qbackground_color); | |
8643 | Qforeground_color = intern ("foreground-color"); | |
8644 | staticpro (&Qforeground_color); | |
8645 | Qunspecified = intern ("unspecified"); | |
8646 | staticpro (&Qunspecified); | |
2ff10663 CY |
8647 | Qignore_defface = intern (":ignore-defface"); |
8648 | staticpro (&Qignore_defface); | |
82641697 | 8649 | |
92610620 GM |
8650 | Qface_alias = intern ("face-alias"); |
8651 | staticpro (&Qface_alias); | |
82641697 GM |
8652 | Qdefault = intern ("default"); |
8653 | staticpro (&Qdefault); | |
9ea173e8 GM |
8654 | Qtool_bar = intern ("tool-bar"); |
8655 | staticpro (&Qtool_bar); | |
82641697 GM |
8656 | Qregion = intern ("region"); |
8657 | staticpro (&Qregion); | |
8bd201d6 GM |
8658 | Qfringe = intern ("fringe"); |
8659 | staticpro (&Qfringe); | |
045dee35 GM |
8660 | Qheader_line = intern ("header-line"); |
8661 | staticpro (&Qheader_line); | |
8bd201d6 GM |
8662 | Qscroll_bar = intern ("scroll-bar"); |
8663 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
8664 | Qmenu = intern ("menu"); |
8665 | staticpro (&Qmenu); | |
8bd201d6 GM |
8666 | Qcursor = intern ("cursor"); |
8667 | staticpro (&Qcursor); | |
8668 | Qborder = intern ("border"); | |
8669 | staticpro (&Qborder); | |
8670 | Qmouse = intern ("mouse"); | |
8671 | staticpro (&Qmouse); | |
039b6394 KS |
8672 | Qmode_line_inactive = intern ("mode-line-inactive"); |
8673 | staticpro (&Qmode_line_inactive); | |
53abc3bf MB |
8674 | Qvertical_border = intern ("vertical-border"); |
8675 | staticpro (&Qvertical_border); | |
2d764c78 EZ |
8676 | Qtty_color_desc = intern ("tty-color-desc"); |
8677 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
8678 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
8679 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
8680 | Qtty_color_by_index = intern ("tty-color-by-index"); |
8681 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
8682 | Qtty_color_alist = intern ("tty-color-alist"); |
8683 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
8684 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
8685 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 8686 | |
dbc968b8 GM |
8687 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
8688 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
8689 | Vface_alternative_font_family_alist = Qnil; |
8690 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
8691 | Vface_alternative_font_registry_alist = Qnil; |
8692 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 8693 | |
82641697 GM |
8694 | defsubr (&Sinternal_make_lisp_face); |
8695 | defsubr (&Sinternal_lisp_face_p); | |
8696 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 8697 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 8698 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 8699 | #endif |
ea4fa0af GM |
8700 | defsubr (&Scolor_gray_p); |
8701 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
8702 | defsubr (&Sface_attribute_relative_p); |
8703 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
8704 | defsubr (&Sinternal_get_lisp_face_attribute); |
8705 | defsubr (&Sinternal_lisp_face_attribute_values); | |
8706 | defsubr (&Sinternal_lisp_face_equal_p); | |
8707 | defsubr (&Sinternal_lisp_face_empty_p); | |
8708 | defsubr (&Sinternal_copy_lisp_face); | |
8709 | defsubr (&Sinternal_merge_in_global_face); | |
8710 | defsubr (&Sface_font); | |
8711 | defsubr (&Sframe_face_alist); | |
9717e36c | 8712 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 8713 | defsubr (&Scolor_distance); |
82641697 GM |
8714 | defsubr (&Sinternal_set_font_selection_order); |
8715 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 8716 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 8717 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
8718 | #if GLYPH_DEBUG |
8719 | defsubr (&Sdump_face); | |
8720 | defsubr (&Sshow_face_resources); | |
8721 | #endif /* GLYPH_DEBUG */ | |
8722 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 8723 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 8724 | |
38426dee | 8725 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
8726 | defsubr (&Sdump_colors); |
8727 | #endif | |
8728 | ||
7ee72033 MB |
8729 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
8730 | doc: /* *Limit for font matching. | |
228299fa GM |
8731 | If an integer > 0, font matching functions won't load more than |
8732 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
8733 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
8734 | ||
7ee72033 MB |
8735 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
8736 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 8737 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 8738 | |
7ee72033 MB |
8739 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
8740 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
8741 | This stipple pattern is used on monochrome displays |
8742 | instead of shades of gray for a face background color. | |
8743 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
8744 | Vface_default_stipple = build_string ("gray3"); |
8745 | ||
7ee72033 MB |
8746 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
8747 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
8748 | Vtty_defined_color_alist = Qnil; |
8749 | ||
7ee72033 MB |
8750 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
8751 | doc: /* Allowed scalable fonts. | |
228299fa GM |
8752 | A value of nil means don't allow any scalable fonts. |
8753 | A value of t means allow any scalable font. | |
8754 | Otherwise, value must be a list of regular expressions. A font may be | |
8755 | scaled if its name matches a regular expression in the list. | |
8756 | Note that if value is nil, a scalable font might still be used, if no | |
8757 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 8758 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 8759 | |
7ee72033 MB |
8760 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
8761 | doc: /* List of ignored fonts. | |
228299fa GM |
8762 | Each element is a regular expression that matches names of fonts to |
8763 | ignore. */); | |
c824bfbc KH |
8764 | Vface_ignored_fonts = Qnil; |
8765 | ||
f70400f2 KH |
8766 | DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist, |
8767 | doc: /* Alist of fonts vs the rescaling factors. | |
8768 | Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where | |
8769 | FONT-NAME-PATTERN is a regular expression matching a font name, and | |
8770 | RESCALE-RATIO is a floating point number to specify how much larger | |
8771 | \(or smaller) font we should use. For instance, if a face requests | |
8772 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
8773 | Vface_font_rescale_alist = Qnil; | |
8774 | ||
c3cee013 | 8775 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 8776 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
8777 | defsubr (&Sx_list_fonts); |
8778 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 8779 | defsubr (&Sx_family_fonts); |
82641697 | 8780 | defsubr (&Sx_font_family_list); |
c3cee013 | 8781 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 8782 | } |
6b61353c KH |
8783 | |
8784 | /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749 | |
8785 | (do not change this comment) */ |