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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
0b5538bd | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
4e6835db | 3 | 2005, 2006, 2007 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 | ||
39506348 | 59 | 14. Font or fontset pattern, or nil. This is a special attribute. |
ec7a10e3 | 60 | When this attribute is specified, the face uses a font opened by |
39506348 KH |
61 | that pattern as is. In addition, all the other font-related |
62 | attributes (1st thru 5th) are generated from the opened font name. | |
63 | On the other hand, if one of the other font-related attributes are | |
64 | specified, this attribute is set to nil. In that case, the face | |
65 | doesn't inherit this attribute from the `default' face, and uses a | |
66 | font determined by the other attributes (those may be inherited | |
67 | from the `default' face). | |
68 | ||
2c20458f MB |
69 | 15. A face name or list of face names from which to inherit attributes. |
70 | ||
a08332c0 GM |
71 | 16. A specified average font width, which is invisible from Lisp, |
72 | and is used to ensure that a font specified on the command line, | |
73 | for example, can be matched exactly. | |
74 | ||
82641697 GM |
75 | Faces are frame-local by nature because Emacs allows to define the |
76 | same named face (face names are symbols) differently for different | |
77 | frames. Each frame has an alist of face definitions for all named | |
78 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
79 | with the symbol `face' in slot 0, and a slot for each of the face |
80 | attributes mentioned above. | |
82641697 GM |
81 | |
82 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
83 | definitions from this list are used to initialize faces of newly | |
84 | created frames. | |
178c5d9c | 85 | |
82641697 | 86 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
87 | have a value of `unspecified'. Faces specifying all attributes but |
88 | the 14th are called `fully-specified'. | |
82641697 GM |
89 | |
90 | ||
91 | Face merging. | |
92 | ||
93 | The display style of a given character in the text is determined by | |
94 | combining several faces. This process is called `face merging'. | |
95 | Any aspect of the display style that isn't specified by overlays or | |
96 | text properties is taken from the `default' face. Since it is made | |
97 | sure that the default face is always fully-specified, face merging | |
98 | always results in a fully-specified face. | |
99 | ||
100 | ||
101 | Face realization. | |
178c5d9c | 102 | |
82641697 GM |
103 | After all face attributes for a character have been determined by |
104 | merging faces of that character, that face is `realized'. The | |
105 | realization process maps face attributes to what is physically | |
106 | available on the system where Emacs runs. The result is a | |
107 | `realized face' in form of a struct face which is stored in the | |
108 | face cache of the frame on which it was realized. | |
109 | ||
39506348 KH |
110 | Face realization is done in the context of the character to display |
111 | because different fonts may be used for different characters. In | |
112 | other words, for characters that have different font | |
113 | specifications, different realized faces are needed to display | |
82641697 GM |
114 | them. |
115 | ||
39506348 KH |
116 | Font specification is done by fontsets. See the comment in |
117 | fontset.c for the details. In the current implementation, all ASCII | |
118 | characters share the same font in a fontset. | |
119 | ||
120 | Faces are at first realized for ASCII characters, and, at that | |
121 | time, assigned a specific realized fontset. Hereafter, we call | |
122 | such a face as `ASCII face'. When a face for a multibyte character | |
123 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
124 | that has the same attributes other than font-related ones. | |
125 | ||
ec7a10e3 | 126 | Thus, all realized face have a realized fontset. |
82641697 GM |
127 | |
128 | ||
129 | Unibyte text. | |
130 | ||
39506348 KH |
131 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
132 | font as ASCII characters. That is because it is expected that | |
133 | unibyte text users specify a font that is suitable both for ASCII | |
134 | and raw 8-bit characters. | |
135 | ||
82641697 GM |
136 | |
137 | Font selection. | |
138 | ||
139 | Font selection tries to find the best available matching font for a | |
39506348 | 140 | given (character, face) combination. |
82641697 | 141 | |
39506348 KH |
142 | If the face specifies a fontset name, that fontset determines a |
143 | pattern for fonts of the given character. If the face specifies a | |
144 | font name or the other font-related attributes, a fontset is | |
145 | realized from the default fontset. In that case, that | |
146 | specification determines a pattern for ASCII characters and the | |
147 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
148 | |
149 | Available fonts on the system on which Emacs runs are then matched | |
150 | against the font pattern. The result of font selection is the best | |
151 | match for the given face attributes in this font list. | |
152 | ||
153 | Font selection can be influenced by the user. | |
154 | ||
155 | 1. The user can specify the relative importance he gives the face | |
156 | attributes width, height, weight, and slant by setting | |
157 | face-font-selection-order (faces.el) to a list of face attribute | |
158 | names. The default is '(:width :height :weight :slant), and means | |
159 | that font selection first tries to find a good match for the font | |
160 | width specified by a face, then---within fonts with that | |
161 | width---tries to find a best match for the specified font height, | |
162 | etc. | |
163 | ||
c824bfbc | 164 | 2. Setting face-font-family-alternatives allows the user to |
82641697 GM |
165 | specify alternative font families to try if a family specified by a |
166 | face doesn't exist. | |
167 | ||
c824bfbc KH |
168 | 3. Setting face-font-registry-alternatives allows the user to |
169 | specify all alternative font registries to try for a face | |
170 | specifying a registry. | |
171 | ||
172 | 4. Setting face-ignored-fonts allows the user to ignore specific | |
173 | fonts. | |
174 | ||
82641697 | 175 | |
ec7a10e3 | 176 | Character composition. |
39506348 KH |
177 | |
178 | Usually, the realization process is already finished when Emacs | |
179 | actually reflects the desired glyph matrix on the screen. However, | |
180 | on displaying a composition (sequence of characters to be composed | |
181 | on the screen), a suitable font for the components of the | |
182 | composition is selected and realized while drawing them on the | |
183 | screen, i.e. the realization process is delayed but in principle | |
184 | the same. | |
82641697 | 185 | |
178c5d9c | 186 | |
82641697 GM |
187 | Initialization of basic faces. |
188 | ||
189 | The faces `default', `modeline' are considered `basic faces'. | |
190 | When redisplay happens the first time for a newly created frame, | |
191 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
192 | used to fill in unspecified attributes of the default face. */ | |
193 | ||
68c45bf0 | 194 | #include <config.h> |
5890e9f7 | 195 | #include <stdio.h> |
c115973b JB |
196 | #include <sys/types.h> |
197 | #include <sys/stat.h> | |
7ee72033 | 198 | |
c115973b | 199 | #include "lisp.h" |
a8517066 | 200 | #include "charset.h" |
9763806e | 201 | #include "keyboard.h" |
b5c53576 RS |
202 | #include "frame.h" |
203 | ||
f7cc6849 DL |
204 | #ifdef HAVE_WINDOW_SYSTEM |
205 | #include "fontset.h" | |
d12d0a9b GM |
206 | #endif /* HAVE_WINDOW_SYSTEM */ |
207 | ||
87485d6f | 208 | #ifdef HAVE_X_WINDOWS |
c115973b | 209 | #include "xterm.h" |
c7ae3284 GM |
210 | #ifdef USE_MOTIF |
211 | #include <Xm/Xm.h> | |
212 | #include <Xm/XmStrDefs.h> | |
213 | #endif /* USE_MOTIF */ | |
d12d0a9b | 214 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 215 | |
87485d6f MW |
216 | #ifdef MSDOS |
217 | #include "dosfns.h" | |
218 | #endif | |
82641697 | 219 | |
c3cee013 JR |
220 | #ifdef WINDOWSNT |
221 | #include "w32term.h" | |
222 | #include "fontset.h" | |
223 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
224 | code with #ifdef blocks. */ | |
9763806e | 225 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
226 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
227 | #define x_display_info w32_display_info | |
228 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
229 | #define check_x check_w32 | |
230 | #define x_list_fonts w32_list_fonts | |
231 | #define GCGraphicsExposures 0 | |
d12d0a9b | 232 | #endif /* WINDOWSNT */ |
c3cee013 | 233 | |
e0f712ba | 234 | #ifdef MAC_OS |
1a578e9b AC |
235 | #include "macterm.h" |
236 | #define x_display_info mac_display_info | |
237 | #define check_x check_mac | |
e0f712ba | 238 | #endif /* MAC_OS */ |
1a578e9b | 239 | |
c115973b | 240 | #include "buffer.h" |
f211082d | 241 | #include "dispextern.h" |
357f32fc | 242 | #include "blockinput.h" |
b6d40e46 | 243 | #include "window.h" |
bde7c500 | 244 | #include "intervals.h" |
c115973b | 245 | |
87485d6f | 246 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
247 | |
248 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
249 | time.h. On some such systems, Xos.h tries to redefine struct |
250 | timeval and struct timezone if USG is #defined while it is | |
251 | #included. */ | |
657070ac | 252 | |
82641697 | 253 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 254 | #include <time.h> |
657070ac JB |
255 | #undef USG |
256 | #include <X11/Xos.h> | |
257 | #define USG | |
e11d186d | 258 | #define __TIMEVAL__ |
82641697 GM |
259 | #else /* not XOS_NEEDS_TIME_H */ |
260 | #include <X11/Xos.h> | |
261 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 262 | |
82641697 | 263 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 264 | |
82641697 | 265 | #include <ctype.h> |
c115973b | 266 | |
4a46077f | 267 | #undef abs |
82641697 | 268 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 269 | |
c660ce4e GM |
270 | /* Number of pt per inch (from the TeXbook). */ |
271 | ||
272 | #define PT_PER_INCH 72.27 | |
273 | ||
82641697 GM |
274 | /* Non-zero if face attribute ATTR is unspecified. */ |
275 | ||
276 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
277 | ||
2ff10663 CY |
278 | /* Non-zero if face attribute ATTR is `ignore-defface'. */ |
279 | ||
280 | #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface) | |
281 | ||
82641697 GM |
282 | /* Value is the number of elements of VECTOR. */ |
283 | ||
284 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
285 | ||
178c5d9c | 286 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
287 | to the copy. */ |
288 | ||
289 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 290 | |
82641697 GM |
291 | /* Make a copy of the contents of Lisp string S on the stack using |
292 | alloca. Value is a pointer to the copy. */ | |
293 | ||
d5db4077 | 294 | #define LSTRDUPA(S) STRDUPA (SDATA ((S))) |
82641697 | 295 | |
178c5d9c | 296 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
297 | prime number). */ |
298 | ||
299 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
300 | ||
301 | /* Keyword symbols used for face attribute names. */ | |
302 | ||
303 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
304 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
305 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
306 | Lisp_Object QCreverse_video; | |
2c20458f | 307 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
308 | |
309 | /* Symbols used for attribute values. */ | |
310 | ||
311 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
312 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
313 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
314 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
315 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
316 | Lisp_Object Qultra_expanded; | |
317 | Lisp_Object Qreleased_button, Qpressed_button; | |
318 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 | 319 | Lisp_Object Qunspecified; |
2ff10663 | 320 | Lisp_Object Qignore_defface; |
ef917393 EZ |
321 | |
322 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 323 | |
92610620 | 324 | /* The name of the function to call when the background of the frame |
c20577bc | 325 | has changed, frame_set_background_mode. */ |
92610620 | 326 | |
c20577bc | 327 | Lisp_Object Qframe_set_background_mode; |
92610620 | 328 | |
82641697 GM |
329 | /* Names of basic faces. */ |
330 | ||
fb4927c4 | 331 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 332 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
53abc3bf | 333 | Lisp_Object Qmode_line_inactive, Qvertical_border; |
fb4927c4 | 334 | extern Lisp_Object Qmode_line; |
8bd201d6 | 335 | |
92610620 GM |
336 | /* The symbol `face-alias'. A symbols having that property is an |
337 | alias for another face. Value of the property is the name of | |
338 | the aliased face. */ | |
339 | ||
340 | Lisp_Object Qface_alias; | |
341 | ||
d1bf13b3 KS |
342 | extern Lisp_Object Qcircular_list; |
343 | ||
82641697 GM |
344 | /* Default stipple pattern used on monochrome displays. This stipple |
345 | pattern is used on monochrome displays instead of shades of gray | |
346 | for a face background color. See `set-face-stipple' for possible | |
347 | values for this variable. */ | |
348 | ||
349 | Lisp_Object Vface_default_stipple; | |
350 | ||
82641697 GM |
351 | /* Alist of alternative font families. Each element is of the form |
352 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
353 | try FAMILY1, then FAMILY2, ... */ | |
354 | ||
355 | Lisp_Object Vface_alternative_font_family_alist; | |
356 | ||
32fcc231 GM |
357 | /* Alist of alternative font registries. Each element is of the form |
358 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
359 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
360 | ||
361 | Lisp_Object Vface_alternative_font_registry_alist; | |
362 | ||
82641697 GM |
363 | /* Allowed scalable fonts. A value of nil means don't allow any |
364 | scalable fonts. A value of t means allow the use of any scalable | |
365 | font. Otherwise, value must be a list of regular expressions. A | |
366 | font may be scaled if its name matches a regular expression in the | |
367 | list. */ | |
368 | ||
eeffb293 | 369 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 370 | |
c824bfbc KH |
371 | /* List of regular expressions that matches names of fonts to ignore. */ |
372 | ||
373 | Lisp_Object Vface_ignored_fonts; | |
374 | ||
f70400f2 KH |
375 | /* Alist of font name patterns vs the rescaling factor. */ |
376 | ||
377 | Lisp_Object Vface_font_rescale_alist; | |
378 | ||
057df17c GM |
379 | /* Maximum number of fonts to consider in font_list. If not an |
380 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
381 | ||
382 | Lisp_Object Vfont_list_limit; | |
383 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
384 | ||
82641697 GM |
385 | /* The symbols `foreground-color' and `background-color' which can be |
386 | used as part of a `face' property. This is for compatibility with | |
387 | Emacs 20.2. */ | |
388 | ||
389 | Lisp_Object Qforeground_color, Qbackground_color; | |
390 | ||
391 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 392 | |
ff83dbb1 | 393 | Lisp_Object Qface; |
82641697 GM |
394 | extern Lisp_Object Qmouse_face; |
395 | ||
46b00436 KS |
396 | /* Property for basic faces which other faces cannot inherit. */ |
397 | ||
398 | Lisp_Object Qface_no_inherit; | |
399 | ||
82641697 GM |
400 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
401 | ||
fef04523 | 402 | Lisp_Object Qbitmap_spec_p; |
f211082d | 403 | |
82641697 GM |
404 | /* Alist of global face definitions. Each element is of the form |
405 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
406 | is a Lisp vector of face attributes. These faces are used | |
407 | to initialize faces for new frames. */ | |
cb637678 | 408 | |
82641697 | 409 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 410 | |
82641697 | 411 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 412 | |
82641697 | 413 | static int next_lface_id; |
c115973b | 414 | |
82641697 | 415 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 416 | |
82641697 GM |
417 | static Lisp_Object *lface_id_to_name; |
418 | static int lface_id_to_name_size; | |
c115973b | 419 | |
ae4b4ba5 GM |
420 | /* TTY color-related functions (defined in tty-colors.el). */ |
421 | ||
b35df831 | 422 | Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 423 | |
ae4b4ba5 GM |
424 | /* The name of the function used to compute colors on TTYs. */ |
425 | ||
426 | Lisp_Object Qtty_color_alist; | |
427 | ||
428 | /* An alist of defined terminal colors and their RGB values. */ | |
429 | ||
430 | Lisp_Object Vtty_defined_color_alist; | |
431 | ||
82641697 GM |
432 | /* Counter for calls to clear_face_cache. If this counter reaches |
433 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
434 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
435 | ||
436 | static int clear_font_table_count; | |
437 | #define CLEAR_FONT_TABLE_COUNT 100 | |
438 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
439 | ||
440 | /* Non-zero means face attributes have been changed since the last | |
441 | redisplay. Used in redisplay_internal. */ | |
442 | ||
443 | int face_change_count; | |
444 | ||
a4a76b61 GM |
445 | /* Non-zero means don't display bold text if a face's foreground |
446 | and background colors are the inverse of the default colors of the | |
447 | display. This is a kluge to suppress `bold black' foreground text | |
448 | which is hard to read on an LCD monitor. */ | |
449 | ||
450 | int tty_suppress_bold_inverse_default_colors_p; | |
451 | ||
dbc968b8 GM |
452 | /* A list of the form `((x . y))' used to avoid consing in |
453 | Finternal_set_lisp_face_attribute. */ | |
454 | ||
455 | static Lisp_Object Vparam_value_alist; | |
456 | ||
82641697 GM |
457 | /* The total number of colors currently allocated. */ |
458 | ||
459 | #if GLYPH_DEBUG | |
460 | static int ncolors_allocated; | |
461 | static int npixmaps_allocated; | |
462 | static int ngcs; | |
463 | #endif | |
464 | ||
ceeda019 GM |
465 | /* Non-zero means the definition of the `menu' face for new frames has |
466 | been changed. */ | |
467 | ||
468 | int menu_face_changed_default; | |
82641697 GM |
469 | |
470 | \f | |
471 | /* Function prototypes. */ | |
472 | ||
473 | struct font_name; | |
474 | struct table_entry; | |
a0a23346 | 475 | struct named_merge_point; |
82641697 | 476 | |
ae4b4ba5 GM |
477 | static void map_tty_color P_ ((struct frame *, struct face *, |
478 | enum lface_attribute_index, int *)); | |
d1bf13b3 | 479 | static Lisp_Object resolve_face_name P_ ((Lisp_Object, int)); |
53c208f6 | 480 | static int may_use_scalable_font_p P_ ((const char *)); |
82641697 GM |
481 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
482 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 483 | int, int)); |
82641697 | 484 | static int x_face_list_fonts P_ ((struct frame *, char *, |
ee5be7c3 | 485 | struct font_name **, int, int)); |
82641697 | 486 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
487 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
488 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 | 489 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
82641697 | 490 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 491 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
492 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
493 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
494 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
495 | static char *build_font_name P_ ((struct font_name *)); | |
496 | static void free_font_names P_ ((struct font_name *, int)); | |
497 | static int sorted_font_list P_ ((struct frame *, char *, | |
498 | int (*cmpfn) P_ ((const void *, const void *)), | |
499 | struct font_name **)); | |
32fcc231 GM |
500 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
501 | Lisp_Object, struct font_name **)); | |
39506348 KH |
502 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
503 | Lisp_Object, struct font_name **)); | |
177c0ea7 | 504 | static int try_font_list P_ ((struct frame *, Lisp_Object *, |
54580ab2 KH |
505 | Lisp_Object, Lisp_Object, struct font_name **, |
506 | int)); | |
4a529c42 GM |
507 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
508 | Lisp_Object, struct font_name **)); | |
82641697 | 509 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
510 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
511 | struct face *, int)); | |
82641697 | 512 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 513 | Lisp_Object *, int, struct face *)); |
82641697 GM |
514 | static struct face *realize_tty_face P_ ((struct face_cache *, |
515 | Lisp_Object *, int)); | |
516 | static int realize_basic_faces P_ ((struct frame *)); | |
517 | static int realize_default_face P_ ((struct frame *)); | |
518 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
519 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
520 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
521 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
522 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
523 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
524 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
525 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
526 | static void clear_face_gcs P_ ((struct face_cache *)); | |
527 | static void free_face_cache P_ ((struct face_cache *)); | |
528 | static int face_numeric_weight P_ ((Lisp_Object)); | |
529 | static int face_numeric_slant P_ ((Lisp_Object)); | |
530 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 531 | static int face_fontset P_ ((Lisp_Object *)); |
6ae2cd57 | 532 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int, int*)); |
a0a23346 MB |
533 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, |
534 | struct named_merge_point *)); | |
535 | static int merge_face_ref P_ ((struct frame *, Lisp_Object, Lisp_Object *, | |
536 | int, struct named_merge_point *)); | |
39506348 KH |
537 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
538 | Lisp_Object, int, int)); | |
82641697 | 539 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 540 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
541 | static void free_realized_faces P_ ((struct face_cache *)); |
542 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
6ae2cd57 | 543 | struct font_name *, int, int, int *)); |
82641697 GM |
544 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
545 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
546 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
547 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
548 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
549 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
550 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
551 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
552 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
553 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
554 | int, int)); | |
555 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
556 | struct font_name *, int, |
557 | Lisp_Object)); | |
82641697 GM |
558 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
559 | struct font_name *, int)); | |
560 | ||
c3cee013 | 561 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
562 | |
563 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
564 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
565 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
566 | int (*cmpfn) P_ ((const void *, const void *)))); | |
567 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
568 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 569 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 570 | |
c3cee013 JR |
571 | #ifdef WINDOWSNT |
572 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
573 | #endif /* WINDOWSNT */ | |
574 | ||
bce72079 GM |
575 | #ifdef USE_X_TOOLKIT |
576 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
577 | |
578 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
579 | #endif /* USE_X_TOOLKIT */ |
580 | ||
c3cee013 | 581 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 582 | |
cb637678 | 583 | \f |
82641697 GM |
584 | /*********************************************************************** |
585 | Utilities | |
586 | ***********************************************************************/ | |
c115973b | 587 | |
87485d6f | 588 | #ifdef HAVE_X_WINDOWS |
cb637678 | 589 | |
a435fc2a GM |
590 | #ifdef DEBUG_X_COLORS |
591 | ||
592 | /* The following is a poor mans infrastructure for debugging X color | |
593 | allocation problems on displays with PseudoColor-8. Some X servers | |
594 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
595 | color reference counts completely so that they don't signal an | |
596 | error when a color is freed whose reference count is already 0. | |
597 | Other X servers do. To help me debug this, the following code | |
598 | implements a simple reference counting schema of its own, for a | |
599 | single display/screen. --gerd. */ | |
600 | ||
601 | /* Reference counts for pixel colors. */ | |
602 | ||
603 | int color_count[256]; | |
604 | ||
605 | /* Register color PIXEL as allocated. */ | |
606 | ||
607 | void | |
608 | register_color (pixel) | |
609 | unsigned long pixel; | |
610 | { | |
611 | xassert (pixel < 256); | |
612 | ++color_count[pixel]; | |
613 | } | |
614 | ||
615 | ||
616 | /* Register color PIXEL as deallocated. */ | |
617 | ||
618 | void | |
619 | unregister_color (pixel) | |
620 | unsigned long pixel; | |
621 | { | |
622 | xassert (pixel < 256); | |
623 | if (color_count[pixel] > 0) | |
624 | --color_count[pixel]; | |
625 | else | |
626 | abort (); | |
627 | } | |
628 | ||
629 | ||
630 | /* Register N colors from PIXELS as deallocated. */ | |
631 | ||
632 | void | |
633 | unregister_colors (pixels, n) | |
634 | unsigned long *pixels; | |
635 | int n; | |
636 | { | |
637 | int i; | |
638 | for (i = 0; i < n; ++i) | |
639 | unregister_color (pixels[i]); | |
640 | } | |
641 | ||
08dc08dc GM |
642 | |
643 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
644 | doc: /* Dump currently allocated colors to stderr. */) |
645 | () | |
08dc08dc GM |
646 | { |
647 | int i, n; | |
648 | ||
649 | fputc ('\n', stderr); | |
178c5d9c | 650 | |
08dc08dc GM |
651 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
652 | if (color_count[i]) | |
653 | { | |
654 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
655 | ++n; | |
656 | if (n % 5 == 0) | |
657 | fputc ('\n', stderr); | |
658 | else | |
659 | fputc ('\t', stderr); | |
660 | } | |
661 | ||
662 | if (n % 5 != 0) | |
663 | fputc ('\n', stderr); | |
664 | return Qnil; | |
665 | } | |
666 | ||
a435fc2a GM |
667 | #endif /* DEBUG_X_COLORS */ |
668 | ||
d12d0a9b | 669 | |
1f847cf8 GM |
670 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
671 | color values. Interrupt input must be blocked when this function | |
672 | is called. */ | |
673 | ||
674 | void | |
675 | x_free_colors (f, pixels, npixels) | |
676 | struct frame *f; | |
677 | unsigned long *pixels; | |
678 | int npixels; | |
679 | { | |
680 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
681 | ||
682 | /* If display has an immutable color map, freeing colors is not | |
683 | necessary and some servers don't allow it. So don't do it. */ | |
684 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
685 | { | |
a435fc2a | 686 | #ifdef DEBUG_X_COLORS |
08dc08dc | 687 | unregister_colors (pixels, npixels); |
a435fc2a | 688 | #endif |
513c5806 GM |
689 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
690 | pixels, npixels, 0); | |
08dc08dc GM |
691 | } |
692 | } | |
693 | ||
694 | ||
695 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
696 | color values. Interrupt input must be blocked when this function | |
697 | is called. */ | |
698 | ||
699 | void | |
700 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
701 | Display *dpy; | |
702 | Screen *screen; | |
703 | Colormap cmap; | |
704 | unsigned long *pixels; | |
705 | int npixels; | |
706 | { | |
707 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
708 | int class = dpyinfo->visual->class; | |
709 | ||
710 | /* If display has an immutable color map, freeing colors is not | |
711 | necessary and some servers don't allow it. So don't do it. */ | |
712 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
713 | { | |
a435fc2a | 714 | #ifdef DEBUG_X_COLORS |
08dc08dc | 715 | unregister_colors (pixels, npixels); |
a435fc2a | 716 | #endif |
513c5806 | 717 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
718 | } |
719 | } | |
720 | ||
08dc08dc | 721 | |
82641697 GM |
722 | /* Create and return a GC for use on frame F. GC values and mask |
723 | are given by XGCV and MASK. */ | |
724 | ||
725 | static INLINE GC | |
726 | x_create_gc (f, mask, xgcv) | |
cb637678 | 727 | struct frame *f; |
82641697 GM |
728 | unsigned long mask; |
729 | XGCValues *xgcv; | |
c115973b JB |
730 | { |
731 | GC gc; | |
82641697 GM |
732 | BLOCK_INPUT; |
733 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
734 | UNBLOCK_INPUT; | |
735 | IF_DEBUG (++ngcs); | |
736 | return gc; | |
737 | } | |
c115973b | 738 | |
42120bc7 | 739 | |
82641697 GM |
740 | /* Free GC which was used on frame F. */ |
741 | ||
742 | static INLINE void | |
743 | x_free_gc (f, gc) | |
744 | struct frame *f; | |
745 | GC gc; | |
746 | { | |
660ed669 | 747 | BLOCK_INPUT; |
a6d8ba25 | 748 | IF_DEBUG (xassert (--ngcs >= 0)); |
82641697 GM |
749 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
750 | UNBLOCK_INPUT; | |
751 | } | |
660ed669 | 752 | |
82641697 | 753 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 754 | |
c3cee013 JR |
755 | #ifdef WINDOWSNT |
756 | /* W32 emulation of GCs */ | |
757 | ||
758 | static INLINE GC | |
759 | x_create_gc (f, mask, xgcv) | |
760 | struct frame *f; | |
761 | unsigned long mask; | |
762 | XGCValues *xgcv; | |
763 | { | |
764 | GC gc; | |
765 | BLOCK_INPUT; | |
766 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
767 | UNBLOCK_INPUT; | |
768 | IF_DEBUG (++ngcs); | |
769 | return gc; | |
770 | } | |
771 | ||
772 | ||
773 | /* Free GC which was used on frame F. */ | |
774 | ||
775 | static INLINE void | |
776 | x_free_gc (f, gc) | |
777 | struct frame *f; | |
778 | GC gc; | |
779 | { | |
780 | BLOCK_INPUT; | |
a6d8ba25 | 781 | IF_DEBUG (xassert (--ngcs >= 0)); |
c3cee013 JR |
782 | xfree (gc); |
783 | UNBLOCK_INPUT; | |
784 | } | |
785 | ||
786 | #endif /* WINDOWSNT */ | |
660ed669 | 787 | |
e0f712ba AC |
788 | #ifdef MAC_OS |
789 | /* Mac OS emulation of GCs */ | |
790 | ||
e0f712ba AC |
791 | static INLINE GC |
792 | x_create_gc (f, mask, xgcv) | |
793 | struct frame *f; | |
794 | unsigned long mask; | |
795 | XGCValues *xgcv; | |
796 | { | |
797 | GC gc; | |
61e62f5f | 798 | BLOCK_INPUT; |
e0f712ba | 799 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); |
61e62f5f YM |
800 | UNBLOCK_INPUT; |
801 | IF_DEBUG (++ngcs); | |
e0f712ba AC |
802 | return gc; |
803 | } | |
804 | ||
805 | static INLINE void | |
806 | x_free_gc (f, gc) | |
807 | struct frame *f; | |
808 | GC gc; | |
809 | { | |
61e62f5f YM |
810 | BLOCK_INPUT; |
811 | IF_DEBUG (xassert (--ngcs >= 0)); | |
e0f712ba | 812 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); |
61e62f5f | 813 | UNBLOCK_INPUT; |
e0f712ba AC |
814 | } |
815 | ||
816 | #endif /* MAC_OS */ | |
817 | ||
82641697 GM |
818 | /* Like stricmp. Used to compare parts of font names which are in |
819 | ISO8859-1. */ | |
820 | ||
821 | int | |
822 | xstricmp (s1, s2) | |
23889aba | 823 | const unsigned char *s1, *s2; |
82641697 GM |
824 | { |
825 | while (*s1 && *s2) | |
95887807 | 826 | { |
82641697 GM |
827 | unsigned char c1 = tolower (*s1); |
828 | unsigned char c2 = tolower (*s2); | |
829 | if (c1 != c2) | |
830 | return c1 < c2 ? -1 : 1; | |
831 | ++s1, ++s2; | |
95887807 | 832 | } |
cd0bb842 | 833 | |
82641697 GM |
834 | if (*s1 == 0) |
835 | return *s2 == 0 ? 0 : -1; | |
836 | return 1; | |
837 | } | |
660ed669 | 838 | |
660ed669 | 839 | |
82641697 | 840 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 841 | |
82641697 GM |
842 | static unsigned char * |
843 | xstrlwr (s) | |
844 | unsigned char *s; | |
845 | { | |
846 | unsigned char *p = s; | |
847 | ||
848 | for (p = s; *p; ++p) | |
9655b404 YM |
849 | /* On Mac OS X 10.3, tolower also converts non-ASCII characters |
850 | for some locales. */ | |
851 | if (isascii (*p)) | |
852 | *p = tolower (*p); | |
82641697 GM |
853 | |
854 | return s; | |
c115973b | 855 | } |
cb637678 | 856 | |
42120bc7 | 857 | |
c0617987 GM |
858 | /* If FRAME is nil, return a pointer to the selected frame. |
859 | Otherwise, check that FRAME is a live frame, and return a pointer | |
860 | to it. NPARAM is the parameter number of FRAME, for | |
861 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
862 | Lisp function definitions. */ | |
82641697 GM |
863 | |
864 | static INLINE struct frame * | |
865 | frame_or_selected_frame (frame, nparam) | |
866 | Lisp_Object frame; | |
867 | int nparam; | |
868 | { | |
82641697 | 869 | if (NILP (frame)) |
c0617987 | 870 | frame = selected_frame; |
178c5d9c | 871 | |
b7826503 | 872 | CHECK_LIVE_FRAME (frame); |
c0617987 | 873 | return XFRAME (frame); |
42120bc7 | 874 | } |
82641697 | 875 | |
42120bc7 | 876 | \f |
82641697 GM |
877 | /*********************************************************************** |
878 | Frames and faces | |
879 | ***********************************************************************/ | |
cd0bb842 | 880 | |
82641697 | 881 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 882 | |
82641697 GM |
883 | void |
884 | init_frame_faces (f) | |
cb637678 | 885 | struct frame *f; |
cb637678 | 886 | { |
82641697 GM |
887 | /* Make a face cache, if F doesn't have one. */ |
888 | if (FRAME_FACE_CACHE (f) == NULL) | |
889 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 890 | |
c3cee013 | 891 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 892 | /* Make the image cache. */ |
c3cee013 | 893 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
894 | { |
895 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
896 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
897 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
898 | } | |
c3cee013 | 899 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 900 | |
178c5d9c | 901 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
902 | parameters to realize basic faces at this point. */ |
903 | #ifdef HAVE_X_WINDOWS | |
904 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
905 | #endif |
906 | #ifdef WINDOWSNT | |
907 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
908 | #endif |
909 | #ifdef MAC_OS | |
910 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
911 | #endif |
912 | if (!realize_basic_faces (f)) | |
913 | abort (); | |
914 | } | |
cb637678 | 915 | |
cb637678 | 916 | |
82641697 | 917 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 918 | |
82641697 GM |
919 | void |
920 | free_frame_faces (f) | |
cb637678 | 921 | struct frame *f; |
cb637678 | 922 | { |
82641697 | 923 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 924 | |
82641697 GM |
925 | if (face_cache) |
926 | { | |
927 | free_face_cache (face_cache); | |
928 | FRAME_FACE_CACHE (f) = NULL; | |
929 | } | |
660ed669 | 930 | |
c3cee013 JR |
931 | #ifdef HAVE_WINDOW_SYSTEM |
932 | if (FRAME_WINDOW_P (f)) | |
195f798e | 933 | { |
82641697 GM |
934 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
935 | if (image_cache) | |
195f798e | 936 | { |
82641697 GM |
937 | --image_cache->refcount; |
938 | if (image_cache->refcount == 0) | |
939 | free_image_cache (f); | |
195f798e RS |
940 | } |
941 | } | |
c3cee013 | 942 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
943 | } |
944 | ||
82641697 | 945 | |
8bd201d6 GM |
946 | /* Clear face caches, and recompute basic faces for frame F. Call |
947 | this after changing frame parameters on which those faces depend, | |
948 | or when realized faces have been freed due to changing attributes | |
949 | of named faces. */ | |
82641697 GM |
950 | |
951 | void | |
952 | recompute_basic_faces (f) | |
cb637678 | 953 | struct frame *f; |
cb637678 | 954 | { |
82641697 GM |
955 | if (FRAME_FACE_CACHE (f)) |
956 | { | |
8bd201d6 | 957 | clear_face_cache (0); |
18df9369 GM |
958 | if (!realize_basic_faces (f)) |
959 | abort (); | |
82641697 GM |
960 | } |
961 | } | |
cb637678 | 962 | |
cb637678 | 963 | |
82641697 GM |
964 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
965 | try to free unused fonts, too. */ | |
cb637678 | 966 | |
adfea139 | 967 | void |
82641697 GM |
968 | clear_face_cache (clear_fonts_p) |
969 | int clear_fonts_p; | |
cb637678 | 970 | { |
c3cee013 | 971 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
972 | Lisp_Object tail, frame; |
973 | struct frame *f; | |
828e66d1 | 974 | |
82641697 GM |
975 | if (clear_fonts_p |
976 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 977 | { |
d5641fc5 | 978 | struct x_display_info *dpyinfo; |
177c0ea7 | 979 | |
d5641fc5 GM |
980 | /* Fonts are common for frames on one display, i.e. on |
981 | one X screen. */ | |
982 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
983 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
984 | clear_font_table (dpyinfo); | |
177c0ea7 | 985 | |
82641697 GM |
986 | /* From time to time see if we can unload some fonts. This also |
987 | frees all realized faces on all frames. Fonts needed by | |
988 | faces will be loaded again when faces are realized again. */ | |
989 | clear_font_table_count = 0; | |
195f798e | 990 | |
82641697 | 991 | FOR_EACH_FRAME (tail, frame) |
195f798e | 992 | { |
d5641fc5 | 993 | struct frame *f = XFRAME (frame); |
c3cee013 | 994 | if (FRAME_WINDOW_P (f) |
82641697 | 995 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 996 | free_all_realized_faces (frame); |
82641697 GM |
997 | } |
998 | } | |
999 | else | |
1000 | { | |
1001 | /* Clear GCs of realized faces. */ | |
1002 | FOR_EACH_FRAME (tail, frame) | |
1003 | { | |
1004 | f = XFRAME (frame); | |
c3cee013 | 1005 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1006 | { |
1007 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1008 | clear_image_cache (f, 0); | |
195f798e RS |
1009 | } |
1010 | } | |
828e66d1 | 1011 | } |
c3cee013 | 1012 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1013 | } |
1014 | ||
82641697 GM |
1015 | |
1016 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1017 | doc: /* Clear face caches on all frames. |
1018 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1019 | (thoroughly) | |
6a3f48c7 | 1020 | Lisp_Object thoroughly; |
cd0bb842 | 1021 | { |
6a3f48c7 | 1022 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1023 | ++face_change_count; |
1024 | ++windows_or_buffers_changed; | |
82641697 GM |
1025 | return Qnil; |
1026 | } | |
1027 | ||
1028 | ||
1029 | ||
c3cee013 | 1030 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1031 | |
1032 | ||
4cba8c0b GM |
1033 | /* Remove fonts from the font table of DPYINFO except for the default |
1034 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1035 | from time to time. */ |
82641697 GM |
1036 | |
1037 | static void | |
d5641fc5 GM |
1038 | clear_font_table (dpyinfo) |
1039 | struct x_display_info *dpyinfo; | |
82641697 | 1040 | { |
82641697 GM |
1041 | int i; |
1042 | ||
d5641fc5 | 1043 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1044 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1045 | { | |
1046 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1047 | Lisp_Object tail, frame; |
1048 | ||
1049 | /* Check if slot is already free. */ | |
1050 | if (font_info->name == NULL) | |
1051 | continue; | |
1052 | ||
3d90c96c | 1053 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1054 | FOR_EACH_FRAME (tail, frame) |
1055 | { | |
1056 | struct frame *f = XFRAME (frame); | |
1057 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1058 | && font_info->font == FRAME_FONT (f)) |
1059 | break; | |
1060 | } | |
82641697 | 1061 | |
d5641fc5 | 1062 | if (!NILP (tail)) |
39506348 | 1063 | continue; |
82641697 | 1064 | |
39506348 KH |
1065 | /* Free names. */ |
1066 | if (font_info->full_name != font_info->name) | |
1067 | xfree (font_info->full_name); | |
1068 | xfree (font_info->name); | |
82641697 | 1069 | |
39506348 KH |
1070 | /* Free the font. */ |
1071 | BLOCK_INPUT; | |
c3cee013 | 1072 | #ifdef HAVE_X_WINDOWS |
39506348 | 1073 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1074 | #endif |
1075 | #ifdef WINDOWSNT | |
39506348 | 1076 | w32_unload_font (dpyinfo, font_info->font); |
b15325b2 ST |
1077 | #endif |
1078 | #ifdef MAC_OS | |
1079 | mac_unload_font (dpyinfo, font_info->font); | |
c3cee013 | 1080 | #endif |
39506348 | 1081 | UNBLOCK_INPUT; |
82641697 | 1082 | |
39506348 KH |
1083 | /* Mark font table slot free. */ |
1084 | font_info->font = NULL; | |
1085 | font_info->name = font_info->full_name = NULL; | |
1086 | } | |
82641697 GM |
1087 | } |
1088 | ||
c3cee013 | 1089 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1090 | |
1091 | ||
1092 | \f | |
1093 | /*********************************************************************** | |
1094 | X Pixmaps | |
1095 | ***********************************************************************/ | |
1096 | ||
c3cee013 | 1097 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1098 | |
fef04523 | 1099 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1100 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1101 | A bitmap specification is either a string, a file name, or a list |
1102 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1103 | HEIGHT is its height, and DATA is a string containing the bits of | |
1104 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1105 | \(WIDTH + 7)/8 bytes. */) |
1106 | (object) | |
82641697 GM |
1107 | Lisp_Object object; |
1108 | { | |
c7ae3284 | 1109 | int pixmap_p = 0; |
178c5d9c | 1110 | |
c7ae3284 GM |
1111 | if (STRINGP (object)) |
1112 | /* If OBJECT is a string, it's a file name. */ | |
1113 | pixmap_p = 1; | |
1114 | else if (CONSP (object)) | |
1115 | { | |
1116 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1117 | HEIGHT must be integers > 0, and DATA must be string large | |
1118 | enough to hold a bitmap of the specified size. */ | |
1119 | Lisp_Object width, height, data; | |
1120 | ||
1121 | height = width = data = Qnil; | |
178c5d9c | 1122 | |
c7ae3284 GM |
1123 | if (CONSP (object)) |
1124 | { | |
1125 | width = XCAR (object); | |
1126 | object = XCDR (object); | |
1127 | if (CONSP (object)) | |
1128 | { | |
1129 | height = XCAR (object); | |
1130 | object = XCDR (object); | |
1131 | if (CONSP (object)) | |
1132 | data = XCAR (object); | |
1133 | } | |
1134 | } | |
cd0bb842 | 1135 | |
c7ae3284 GM |
1136 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1137 | { | |
1138 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1139 | / BITS_PER_CHAR); | |
d5db4077 | 1140 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1141 | pixmap_p = 1; |
1142 | } | |
1143 | } | |
1144 | ||
1145 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1146 | } |
1147 | ||
cd0bb842 | 1148 | |
82641697 GM |
1149 | /* Load a bitmap according to NAME (which is either a file name or a |
1150 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1151 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1152 | bitmap cannot be loaded, display a message saying so, and return | |
1153 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1154 | if these pointers are not null. */ | |
cd0bb842 | 1155 | |
82641697 | 1156 | static int |
cd0bb842 | 1157 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1158 | FRAME_PTR f; |
cd0bb842 RS |
1159 | Lisp_Object name; |
1160 | unsigned int *w_ptr, *h_ptr; | |
1161 | { | |
1162 | int bitmap_id; | |
cd0bb842 RS |
1163 | |
1164 | if (NILP (name)) | |
82641697 | 1165 | return 0; |
cd0bb842 | 1166 | |
d5ddd1a3 | 1167 | CHECK_TYPE (!NILP (Fbitmap_spec_p (name)), Qbitmap_spec_p, name); |
cd0bb842 RS |
1168 | |
1169 | BLOCK_INPUT; | |
cd0bb842 RS |
1170 | if (CONSP (name)) |
1171 | { | |
1172 | /* Decode a bitmap spec into a bitmap. */ | |
1173 | ||
1174 | int h, w; | |
1175 | Lisp_Object bits; | |
1176 | ||
1177 | w = XINT (Fcar (name)); | |
1178 | h = XINT (Fcar (Fcdr (name))); | |
1179 | bits = Fcar (Fcdr (Fcdr (name))); | |
1180 | ||
d5db4077 | 1181 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1182 | w, h); |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | /* It must be a string -- a file name. */ | |
1187 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1188 | } | |
1189 | UNBLOCK_INPUT; | |
1190 | ||
7812a96f | 1191 | if (bitmap_id < 0) |
82641697 | 1192 | { |
2eb582ae | 1193 | add_to_log ("Invalid or undefined bitmap `%s'", name, Qnil); |
82641697 | 1194 | bitmap_id = 0; |
cd0bb842 | 1195 | |
82641697 GM |
1196 | if (w_ptr) |
1197 | *w_ptr = 0; | |
1198 | if (h_ptr) | |
1199 | *h_ptr = 0; | |
1200 | } | |
1201 | else | |
1202 | { | |
1203 | #if GLYPH_DEBUG | |
1204 | ++npixmaps_allocated; | |
1205 | #endif | |
1206 | if (w_ptr) | |
1207 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1208 | ||
1209 | if (h_ptr) | |
1210 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1211 | } | |
cd0bb842 RS |
1212 | |
1213 | return bitmap_id; | |
cb637678 | 1214 | } |
87485d6f | 1215 | |
c3cee013 | 1216 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1217 | |
87485d6f | 1218 | |
82641697 | 1219 | \f |
82641697 GM |
1220 | /*********************************************************************** |
1221 | Fonts | |
1222 | ***********************************************************************/ | |
1223 | ||
c3cee013 | 1224 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1225 | |
39506348 KH |
1226 | /* Load font of face FACE which is used on frame F to display |
1227 | character C. The name of the font to load is determined by lface | |
1228 | and fontset of FACE. */ | |
82641697 GM |
1229 | |
1230 | static void | |
39506348 | 1231 | load_face_font (f, face, c) |
82641697 GM |
1232 | struct frame *f; |
1233 | struct face *face; | |
39506348 | 1234 | int c; |
87485d6f | 1235 | { |
82641697 | 1236 | struct font_info *font_info = NULL; |
39506348 | 1237 | char *font_name; |
6ae2cd57 | 1238 | int needs_overstrike; |
178c5d9c | 1239 | |
82641697 | 1240 | face->font_info_id = -1; |
82641697 | 1241 | face->font = NULL; |
39506348 | 1242 | |
6ae2cd57 MB |
1243 | font_name = choose_face_font (f, face->lface, face->fontset, c, |
1244 | &needs_overstrike); | |
39506348 KH |
1245 | if (!font_name) |
1246 | return; | |
1247 | ||
82641697 | 1248 | BLOCK_INPUT; |
39506348 | 1249 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1250 | UNBLOCK_INPUT; |
1251 | ||
1252 | if (font_info) | |
1253 | { | |
39506348 | 1254 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1255 | face->font = font_info->font; |
1256 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1257 | face->overstrike = needs_overstrike; |
39506348 | 1258 | if (face->gc) |
82641697 | 1259 | { |
39506348 KH |
1260 | x_free_gc (f, face->gc); |
1261 | face->gc = 0; | |
82641697 GM |
1262 | } |
1263 | } | |
39506348 | 1264 | else |
1b8f7fbc | 1265 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1266 | build_string (font_name), Qnil); |
39506348 | 1267 | xfree (font_name); |
87485d6f MW |
1268 | } |
1269 | ||
c3cee013 | 1270 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1271 | |
87485d6f | 1272 | |
82641697 GM |
1273 | \f |
1274 | /*********************************************************************** | |
1275 | X Colors | |
1276 | ***********************************************************************/ | |
1277 | ||
b35df831 MB |
1278 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1279 | RGB_LIST should contain (at least) 3 lisp integers. | |
1280 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1281 | ||
1282 | static int | |
1283 | parse_rgb_list (rgb_list, color) | |
1284 | Lisp_Object rgb_list; | |
1285 | XColor *color; | |
1286 | { | |
1287 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1288 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1289 | { \ | |
1290 | color->field = XINT (XCAR (rgb_list)); \ | |
1291 | rgb_list = XCDR (rgb_list); \ | |
1292 | } \ | |
1293 | else \ | |
1294 | return 0; | |
1295 | ||
1296 | PARSE_RGB_LIST_FIELD (red); | |
1297 | PARSE_RGB_LIST_FIELD (green); | |
1298 | PARSE_RGB_LIST_FIELD (blue); | |
1299 | ||
1300 | return 1; | |
1301 | } | |
1302 | ||
1303 | ||
1304 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1305 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1306 | non-zero, then the `standard' definition of the same color is | |
1307 | returned in it. */ | |
1308 | ||
1309 | static int | |
1310 | tty_lookup_color (f, color, tty_color, std_color) | |
1311 | struct frame *f; | |
1312 | Lisp_Object color; | |
1313 | XColor *tty_color, *std_color; | |
1314 | { | |
1315 | Lisp_Object frame, color_desc; | |
1316 | ||
1317 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1318 | return 0; | |
1319 | ||
1320 | XSETFRAME (frame, f); | |
1321 | ||
1322 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1323 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1324 | { | |
1325 | Lisp_Object rgb; | |
1326 | ||
1327 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1328 | return 0; | |
1329 | ||
1330 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1331 | ||
1332 | rgb = XCDR (XCDR (color_desc)); | |
1333 | if (! parse_rgb_list (rgb, tty_color)) | |
1334 | return 0; | |
1335 | ||
1336 | /* Should we fill in STD_COLOR too? */ | |
1337 | if (std_color) | |
1338 | { | |
1339 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1340 | *std_color = *tty_color; | |
1341 | ||
1342 | /* Do a quick check to see if the returned descriptor is | |
1343 | actually _exactly_ equal to COLOR, otherwise we have to | |
1344 | lookup STD_COLOR separately. If it's impossible to lookup | |
1345 | a standard color, we just give up and use TTY_COLOR. */ | |
1346 | if ((!STRINGP (XCAR (color_desc)) | |
1347 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1348 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1349 | { |
1350 | /* Look up STD_COLOR separately. */ | |
1351 | rgb = call1 (Qtty_color_standard_values, color); | |
1352 | if (! parse_rgb_list (rgb, std_color)) | |
1353 | return 0; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | return 1; | |
1358 | } | |
1359 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1360 | /* We were called early during startup, and the colors are not | |
1361 | yet set up in tty-defined-color-alist. Don't return a failure | |
1362 | indication, since this produces the annoying "Unable to | |
1363 | load color" messages in the *Messages* buffer. */ | |
1364 | return 1; | |
1365 | else | |
1366 | /* tty-color-desc seems to have returned a bad value. */ | |
1367 | return 0; | |
1368 | } | |
1369 | ||
2d764c78 | 1370 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1371 | |
2d764c78 EZ |
1372 | int |
1373 | tty_defined_color (f, color_name, color_def, alloc) | |
1374 | struct frame *f; | |
1375 | char *color_name; | |
1376 | XColor *color_def; | |
1377 | int alloc; | |
1378 | { | |
2d764c78 EZ |
1379 | int status = 1; |
1380 | ||
b35df831 | 1381 | /* Defaults. */ |
177c0ea7 | 1382 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1383 | color_def->red = 0; |
1384 | color_def->blue = 0; | |
1385 | color_def->green = 0; | |
a61c12d5 | 1386 | |
b35df831 MB |
1387 | if (*color_name) |
1388 | status = tty_lookup_color (f, build_string (color_name), color_def, 0); | |
1389 | ||
1390 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1391 | { |
1392 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1393 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1394 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1395 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1396 | } |
1397 | ||
b35df831 | 1398 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1399 | status = 1; |
1400 | ||
2d764c78 EZ |
1401 | return status; |
1402 | } | |
1403 | ||
08dc08dc GM |
1404 | |
1405 | /* Decide if color named COLOR_NAME is valid for the display | |
1406 | associated with the frame F; if so, return the rgb values in | |
1407 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1408 | |
1409 | This does the right thing for any type of frame. */ | |
08dc08dc | 1410 | |
2d764c78 EZ |
1411 | int |
1412 | defined_color (f, color_name, color_def, alloc) | |
1413 | struct frame *f; | |
1414 | char *color_name; | |
1415 | XColor *color_def; | |
1416 | int alloc; | |
1417 | { | |
1418 | if (!FRAME_WINDOW_P (f)) | |
1419 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1420 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1421 | else if (FRAME_X_P (f)) |
1422 | return x_defined_color (f, color_name, color_def, alloc); | |
1423 | #endif | |
1424 | #ifdef WINDOWSNT | |
1425 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1426 | return w32_defined_color (f, color_name, color_def, alloc); |
1427 | #endif | |
e0f712ba | 1428 | #ifdef MAC_OS |
2d764c78 | 1429 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1430 | return mac_defined_color (f, color_name, color_def, alloc); |
1431 | #endif | |
1432 | else | |
1433 | abort (); | |
1434 | } | |
1435 | ||
08dc08dc GM |
1436 | |
1437 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1438 | Lisp string. */ | |
2d764c78 EZ |
1439 | |
1440 | Lisp_Object | |
1441 | tty_color_name (f, idx) | |
1442 | struct frame *f; | |
1443 | int idx; | |
1444 | { | |
2d764c78 EZ |
1445 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1446 | { | |
a61c12d5 EZ |
1447 | Lisp_Object frame; |
1448 | Lisp_Object coldesc; | |
1449 | ||
1450 | XSETFRAME (frame, f); | |
1451 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1452 | |
1453 | if (!NILP (coldesc)) | |
1454 | return XCAR (coldesc); | |
1455 | } | |
1456 | #ifdef MSDOS | |
1457 | /* We can have an MSDOG frame under -nw for a short window of | |
1458 | opportunity before internal_terminal_init is called. DTRT. */ | |
1459 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1460 | return msdos_stdcolor_name (idx); | |
1461 | #endif | |
1462 | ||
ef917393 EZ |
1463 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1464 | return build_string (unspecified_fg); | |
1465 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1466 | return build_string (unspecified_bg); | |
c3cee013 JR |
1467 | |
1468 | #ifdef WINDOWSNT | |
1469 | return vga_stdcolor_name (idx); | |
1470 | #endif | |
1471 | ||
ef917393 | 1472 | return Qunspecified; |
2d764c78 | 1473 | } |
82641697 | 1474 | |
08dc08dc | 1475 | |
82641697 | 1476 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1477 | black) on frame F. |
1478 | ||
1479 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1480 | |
1481 | static int | |
1482 | face_color_gray_p (f, color_name) | |
1483 | struct frame *f; | |
1484 | char *color_name; | |
1485 | { | |
1486 | XColor color; | |
1487 | int gray_p; | |
1488 | ||
1489 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1490 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1491 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1492 | || | |
1493 | ((abs (color.red - color.green) | |
1494 | < max (color.red, color.green) / 20) | |
1495 | && (abs (color.green - color.blue) | |
1496 | < max (color.green, color.blue) / 20) | |
1497 | && (abs (color.blue - color.red) | |
1498 | < max (color.blue, color.red) / 20))); | |
87485d6f | 1499 | else |
82641697 | 1500 | gray_p = 0; |
178c5d9c | 1501 | |
82641697 | 1502 | return gray_p; |
87485d6f | 1503 | } |
87485d6f | 1504 | |
cb637678 | 1505 | |
82641697 GM |
1506 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1507 | BACKGROUND_P non-zero means the color will be used as background | |
1508 | color. */ | |
1509 | ||
1510 | static int | |
1511 | face_color_supported_p (f, color_name, background_p) | |
1512 | struct frame *f; | |
1513 | char *color_name; | |
1514 | int background_p; | |
1515 | { | |
1516 | Lisp_Object frame; | |
2d764c78 | 1517 | XColor not_used; |
82641697 GM |
1518 | |
1519 | XSETFRAME (frame, f); | |
066a4c6b | 1520 | return |
6a46b96b | 1521 | #ifdef HAVE_WINDOW_SYSTEM |
066a4c6b SM |
1522 | FRAME_WINDOW_P (f) |
1523 | ? (!NILP (Fxw_display_color_p (frame)) | |
1524 | || xstricmp (color_name, "black") == 0 | |
1525 | || xstricmp (color_name, "white") == 0 | |
1526 | || (background_p | |
1527 | && face_color_gray_p (f, color_name)) | |
1528 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1529 | && face_color_gray_p (f, color_name))) | |
1530 | : | |
1531 | #endif | |
1532 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1533 | } |
82641697 GM |
1534 | |
1535 | ||
da47150d | 1536 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1537 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1538 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1539 | If FRAME is nil or omitted, use the selected frame. */) |
1540 | (color, frame) | |
82641697 | 1541 | Lisp_Object color, frame; |
cb637678 | 1542 | { |
2d764c78 EZ |
1543 | struct frame *f; |
1544 | ||
b7826503 | 1545 | CHECK_STRING (color); |
2d176448 TTN |
1546 | if (NILP (frame)) |
1547 | frame = selected_frame; | |
1548 | else | |
1549 | CHECK_FRAME (frame); | |
2d764c78 | 1550 | f = XFRAME (frame); |
d5db4077 | 1551 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1552 | } |
660ed669 | 1553 | |
fffc2367 | 1554 | |
da47150d | 1555 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1556 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1557 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1558 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1559 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1560 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 MB |
1561 | COLOR must be a valid color name. */) |
1562 | (color, frame, background_p) | |
82641697 GM |
1563 | Lisp_Object frame, color, background_p; |
1564 | { | |
2d764c78 EZ |
1565 | struct frame *f; |
1566 | ||
b7826503 | 1567 | CHECK_STRING (color); |
2d176448 TTN |
1568 | if (NILP (frame)) |
1569 | frame = selected_frame; | |
1570 | else | |
1571 | CHECK_FRAME (frame); | |
2d764c78 | 1572 | f = XFRAME (frame); |
d5db4077 | 1573 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1574 | return Qt; |
1575 | return Qnil; | |
1576 | } | |
7b37f67b | 1577 | |
08dc08dc | 1578 | |
82641697 GM |
1579 | /* Load color with name NAME for use by face FACE on frame F. |
1580 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1581 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1582 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1583 | pixel color. If color cannot be loaded, display a message, and | |
1584 | return the foreground, background or underline color of F, but | |
1585 | record that fact in flags of the face so that we don't try to free | |
1586 | these colors. */ | |
1587 | ||
44747bd0 | 1588 | unsigned long |
82641697 GM |
1589 | load_color (f, face, name, target_index) |
1590 | struct frame *f; | |
1591 | struct face *face; | |
1592 | Lisp_Object name; | |
1593 | enum lface_attribute_index target_index; | |
1594 | { | |
1595 | XColor color; | |
178c5d9c | 1596 | |
82641697 GM |
1597 | xassert (STRINGP (name)); |
1598 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1599 | || target_index == LFACE_BACKGROUND_INDEX | |
1600 | || target_index == LFACE_UNDERLINE_INDEX | |
1601 | || target_index == LFACE_OVERLINE_INDEX | |
1602 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1603 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1604 | |
82641697 GM |
1605 | /* if the color map is full, defined_color will return a best match |
1606 | to the values in an existing cell. */ | |
d5db4077 | 1607 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1608 | { |
2d764c78 | 1609 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1610 | |
82641697 | 1611 | switch (target_index) |
1120eb5e | 1612 | { |
82641697 GM |
1613 | case LFACE_FOREGROUND_INDEX: |
1614 | face->foreground_defaulted_p = 1; | |
1615 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1616 | break; | |
178c5d9c | 1617 | |
82641697 GM |
1618 | case LFACE_BACKGROUND_INDEX: |
1619 | face->background_defaulted_p = 1; | |
1620 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1621 | break; | |
178c5d9c | 1622 | |
82641697 GM |
1623 | case LFACE_UNDERLINE_INDEX: |
1624 | face->underline_defaulted_p = 1; | |
1625 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1626 | break; | |
178c5d9c | 1627 | |
82641697 GM |
1628 | case LFACE_OVERLINE_INDEX: |
1629 | face->overline_color_defaulted_p = 1; | |
1630 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1631 | break; |
178c5d9c | 1632 | |
82641697 GM |
1633 | case LFACE_STRIKE_THROUGH_INDEX: |
1634 | face->strike_through_color_defaulted_p = 1; | |
1635 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1636 | break; | |
178c5d9c | 1637 | |
82641697 GM |
1638 | case LFACE_BOX_INDEX: |
1639 | face->box_color_defaulted_p = 1; | |
1640 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1641 | break; | |
1642 | ||
1643 | default: | |
1644 | abort (); | |
1120eb5e | 1645 | } |
82641697 GM |
1646 | } |
1647 | #if GLYPH_DEBUG | |
1648 | else | |
1649 | ++ncolors_allocated; | |
1650 | #endif | |
178c5d9c | 1651 | |
82641697 GM |
1652 | return color.pixel; |
1653 | } | |
1120eb5e | 1654 | |
08dc08dc | 1655 | |
c3cee013 | 1656 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1657 | |
82641697 GM |
1658 | /* Load colors for face FACE which is used on frame F. Colors are |
1659 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1660 | of ATTRS. If the background color specified is not supported on F, | |
1661 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1662 | ||
1663 | static void | |
1664 | load_face_colors (f, face, attrs) | |
1665 | struct frame *f; | |
1666 | struct face *face; | |
1667 | Lisp_Object *attrs; | |
1668 | { | |
1669 | Lisp_Object fg, bg; | |
1670 | ||
1671 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1672 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1673 | ||
1674 | /* Swap colors if face is inverse-video. */ | |
1675 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1676 | { | |
1677 | Lisp_Object tmp; | |
1678 | tmp = fg; | |
1679 | fg = bg; | |
1680 | bg = tmp; | |
1681 | } | |
1682 | ||
1683 | /* Check for support for foreground, not for background because | |
1684 | face_color_supported_p is smart enough to know that grays are | |
1685 | "supported" as background because we are supposed to use stipple | |
1686 | for them. */ | |
d5db4077 | 1687 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1688 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1689 | { |
1690 | x_destroy_bitmap (f, face->stipple); | |
1691 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1692 | &face->pixmap_w, &face->pixmap_h); | |
1693 | } | |
82641697 | 1694 | |
be8a72f4 | 1695 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1696 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1697 | } |
1698 | ||
660ed669 | 1699 | |
82641697 | 1700 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1701 | |
cb637678 | 1702 | void |
82641697 | 1703 | unload_color (f, pixel) |
cb637678 | 1704 | struct frame *f; |
82641697 | 1705 | unsigned long pixel; |
cb637678 | 1706 | { |
c3cee013 | 1707 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1708 | if (pixel != -1) |
1709 | { | |
1710 | BLOCK_INPUT; | |
1711 | x_free_colors (f, &pixel, 1); | |
1712 | UNBLOCK_INPUT; | |
1713 | } | |
c3cee013 | 1714 | #endif |
82641697 GM |
1715 | } |
1716 | ||
1717 | ||
1718 | /* Free colors allocated for FACE. */ | |
1719 | ||
1720 | static void | |
1721 | free_face_colors (f, face) | |
1722 | struct frame *f; | |
1723 | struct face *face; | |
1724 | { | |
c3cee013 | 1725 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1726 | if (face->colors_copied_bitwise_p) |
1727 | return; | |
1728 | ||
08dc08dc | 1729 | BLOCK_INPUT; |
178c5d9c | 1730 | |
08dc08dc GM |
1731 | if (!face->foreground_defaulted_p) |
1732 | { | |
1733 | x_free_colors (f, &face->foreground, 1); | |
1734 | IF_DEBUG (--ncolors_allocated); | |
1735 | } | |
178c5d9c | 1736 | |
08dc08dc GM |
1737 | if (!face->background_defaulted_p) |
1738 | { | |
1739 | x_free_colors (f, &face->background, 1); | |
1740 | IF_DEBUG (--ncolors_allocated); | |
1741 | } | |
82641697 | 1742 | |
08dc08dc GM |
1743 | if (face->underline_p |
1744 | && !face->underline_defaulted_p) | |
1745 | { | |
1746 | x_free_colors (f, &face->underline_color, 1); | |
1747 | IF_DEBUG (--ncolors_allocated); | |
1748 | } | |
82641697 | 1749 | |
08dc08dc GM |
1750 | if (face->overline_p |
1751 | && !face->overline_color_defaulted_p) | |
1752 | { | |
1753 | x_free_colors (f, &face->overline_color, 1); | |
1754 | IF_DEBUG (--ncolors_allocated); | |
1755 | } | |
82641697 | 1756 | |
08dc08dc GM |
1757 | if (face->strike_through_p |
1758 | && !face->strike_through_color_defaulted_p) | |
1759 | { | |
1760 | x_free_colors (f, &face->strike_through_color, 1); | |
1761 | IF_DEBUG (--ncolors_allocated); | |
1762 | } | |
82641697 | 1763 | |
08dc08dc GM |
1764 | if (face->box != FACE_NO_BOX |
1765 | && !face->box_color_defaulted_p) | |
1766 | { | |
1767 | x_free_colors (f, &face->box_color, 1); | |
1768 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1769 | } |
08dc08dc GM |
1770 | |
1771 | UNBLOCK_INPUT; | |
2d764c78 | 1772 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1773 | } |
08dc08dc | 1774 | |
c3cee013 | 1775 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1776 | |
1777 | ||
1778 | \f | |
1779 | /*********************************************************************** | |
1780 | XLFD Font Names | |
1781 | ***********************************************************************/ | |
1782 | ||
1783 | /* An enumerator for each field of an XLFD font name. */ | |
1784 | ||
1785 | enum xlfd_field | |
1786 | { | |
1787 | XLFD_FOUNDRY, | |
1788 | XLFD_FAMILY, | |
1789 | XLFD_WEIGHT, | |
1790 | XLFD_SLANT, | |
1791 | XLFD_SWIDTH, | |
1792 | XLFD_ADSTYLE, | |
1793 | XLFD_PIXEL_SIZE, | |
1794 | XLFD_POINT_SIZE, | |
1795 | XLFD_RESX, | |
1796 | XLFD_RESY, | |
1797 | XLFD_SPACING, | |
1798 | XLFD_AVGWIDTH, | |
1799 | XLFD_REGISTRY, | |
1800 | XLFD_ENCODING, | |
1801 | XLFD_LAST | |
1802 | }; | |
1803 | ||
178c5d9c | 1804 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1805 | the XLFD specification. */ |
1806 | ||
1807 | enum xlfd_slant | |
1808 | { | |
1809 | XLFD_SLANT_UNKNOWN, | |
1810 | XLFD_SLANT_ROMAN, | |
1811 | XLFD_SLANT_ITALIC, | |
1812 | XLFD_SLANT_OBLIQUE, | |
1813 | XLFD_SLANT_REVERSE_ITALIC, | |
1814 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1815 | XLFD_SLANT_OTHER | |
1816 | }; | |
1817 | ||
1818 | /* Relative font weight according to XLFD documentation. */ | |
1819 | ||
1820 | enum xlfd_weight | |
1821 | { | |
1822 | XLFD_WEIGHT_UNKNOWN, | |
1823 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1824 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1825 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1826 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1827 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1828 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1829 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1830 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1831 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1832 | }; | |
1833 | ||
1834 | /* Relative proportionate width. */ | |
1835 | ||
1836 | enum xlfd_swidth | |
1837 | { | |
1838 | XLFD_SWIDTH_UNKNOWN, | |
1839 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1840 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1841 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1842 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1843 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1844 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1845 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1846 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1847 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1848 | }; | |
1849 | ||
1850 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1851 | names to numeric and symbolic values. */ | |
1852 | ||
1853 | struct table_entry | |
1854 | { | |
1855 | char *name; | |
1856 | int numeric; | |
1857 | Lisp_Object *symbol; | |
1858 | }; | |
1859 | ||
1860 | /* Table of XLFD slant names and their numeric and symbolic | |
1861 | representations. This table must be sorted by slant names in | |
1862 | ascending order. */ | |
1863 | ||
1864 | static struct table_entry slant_table[] = | |
1865 | { | |
1866 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1867 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1868 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1869 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1870 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1871 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1872 | }; | |
1873 | ||
1874 | /* Table of XLFD weight names. This table must be sorted by weight | |
1875 | names in ascending order. */ | |
1876 | ||
1877 | static struct table_entry weight_table[] = | |
1878 | { | |
1879 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1880 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1881 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1882 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1883 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1884 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1885 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1886 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1887 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1888 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1889 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1890 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1891 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1892 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1893 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1894 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1895 | }; | |
1896 | ||
1897 | /* Table of XLFD width names. This table must be sorted by width | |
1898 | names in ascending order. */ | |
1899 | ||
1900 | static struct table_entry swidth_table[] = | |
1901 | { | |
1902 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1903 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1904 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1905 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1906 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1907 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1908 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1909 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1910 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1911 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1912 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1913 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1914 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1915 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1916 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1917 | }; | |
1918 | ||
1919 | /* Structure used to hold the result of splitting font names in XLFD | |
1920 | format into their fields. */ | |
1921 | ||
1922 | struct font_name | |
1923 | { | |
1924 | /* The original name which is modified destructively by | |
1925 | split_font_name. The pointer is kept here to be able to free it | |
1926 | if it was allocated from the heap. */ | |
1927 | char *name; | |
1928 | ||
1929 | /* Font name fields. Each vector element points into `name' above. | |
1930 | Fields are NUL-terminated. */ | |
1931 | char *fields[XLFD_LAST]; | |
1932 | ||
1933 | /* Numeric values for those fields that interest us. See | |
1934 | split_font_name for which these are. */ | |
1935 | int numeric[XLFD_LAST]; | |
8e1b21a7 | 1936 | |
f70400f2 KH |
1937 | /* If the original name matches one of Vface_font_rescale_alist, |
1938 | the value is the corresponding rescale ratio. Otherwise, the | |
1939 | value is 1.0. */ | |
1940 | double rescale_ratio; | |
1941 | ||
8e1b21a7 KH |
1942 | /* Lower value mean higher priority. */ |
1943 | int registry_priority; | |
82641697 GM |
1944 | }; |
1945 | ||
1946 | /* The frame in effect when sorting font names. Set temporarily in | |
1947 | sort_fonts so that it is available in font comparison functions. */ | |
1948 | ||
1949 | static struct frame *font_frame; | |
1950 | ||
1951 | /* Order by which font selection chooses fonts. The default values | |
1952 | mean `first, find a best match for the font width, then for the | |
1953 | font height, then for weight, then for slant.' This variable can be | |
1954 | set via set-face-font-sort-order. */ | |
1955 | ||
e0f712ba | 1956 | #ifdef MAC_OS |
a08332c0 GM |
1957 | static int font_sort_order[4] = { |
1958 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1959 | }; | |
1a578e9b | 1960 | #else |
82641697 | 1961 | static int font_sort_order[4]; |
1a578e9b | 1962 | #endif |
82641697 GM |
1963 | |
1964 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1965 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1966 | is a pointer to the matching table entry or null if no table entry | |
1967 | matches. */ | |
1968 | ||
1969 | static struct table_entry * | |
1970 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1971 | struct table_entry *table; | |
1972 | int dim; | |
1973 | struct font_name *font; | |
1974 | int field_index; | |
1975 | { | |
1976 | /* Function split_font_name converts fields to lower-case, so there | |
1977 | is no need to use xstrlwr or xstricmp here. */ | |
1978 | char *s = font->fields[field_index]; | |
1979 | int low, mid, high, cmp; | |
1980 | ||
1981 | low = 0; | |
1982 | high = dim - 1; | |
1983 | ||
1984 | while (low <= high) | |
1985 | { | |
1986 | mid = (low + high) / 2; | |
1987 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1988 | |
82641697 GM |
1989 | if (cmp < 0) |
1990 | low = mid + 1; | |
1991 | else if (cmp > 0) | |
1992 | high = mid - 1; | |
1993 | else | |
1994 | return table + mid; | |
1995 | } | |
1996 | ||
1997 | return NULL; | |
1998 | } | |
1999 | ||
2000 | ||
2001 | /* Return a numeric representation for font name field | |
2002 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2003 | has DIM entries. Value is the numeric value found or DFLT if no | |
2004 | table entry matches. This function is used to translate weight, | |
2005 | slant, and swidth names of XLFD font names to numeric values. */ | |
2006 | ||
2007 | static INLINE int | |
2008 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2009 | struct table_entry *table; | |
2010 | int dim; | |
2011 | struct font_name *font; | |
2012 | int field_index; | |
2013 | int dflt; | |
2014 | { | |
2015 | struct table_entry *p; | |
2016 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2017 | return p ? p->numeric : dflt; | |
2018 | } | |
2019 | ||
2020 | ||
2021 | /* Return a symbolic representation for font name field | |
2022 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2023 | has DIM entries. Value is the symbolic value found or DFLT if no | |
2024 | table entry matches. This function is used to translate weight, | |
2025 | slant, and swidth names of XLFD font names to symbols. */ | |
2026 | ||
2027 | static INLINE Lisp_Object | |
2028 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2029 | struct table_entry *table; | |
2030 | int dim; | |
2031 | struct font_name *font; | |
2032 | int field_index; | |
6fc556fd | 2033 | Lisp_Object dflt; |
82641697 GM |
2034 | { |
2035 | struct table_entry *p; | |
2036 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2037 | return p ? *p->symbol : dflt; | |
2038 | } | |
2039 | ||
2040 | ||
2041 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2042 | ||
2043 | static INLINE int | |
2044 | xlfd_numeric_slant (font) | |
2045 | struct font_name *font; | |
2046 | { | |
2047 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2048 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2049 | } | |
2050 | ||
2051 | ||
2052 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2053 | ||
2054 | static INLINE Lisp_Object | |
2055 | xlfd_symbolic_slant (font) | |
2056 | struct font_name *font; | |
2057 | { | |
2058 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2059 | font, XLFD_SLANT, Qnormal); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2064 | ||
2065 | static INLINE int | |
2066 | xlfd_numeric_weight (font) | |
2067 | struct font_name *font; | |
2068 | { | |
2069 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2070 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2071 | } | |
2072 | ||
2073 | ||
2074 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2075 | ||
2076 | static INLINE Lisp_Object | |
2077 | xlfd_symbolic_weight (font) | |
2078 | struct font_name *font; | |
2079 | { | |
2080 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2081 | font, XLFD_WEIGHT, Qnormal); | |
2082 | } | |
2083 | ||
2084 | ||
2085 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2086 | name fields are found in FONT. */ | |
2087 | ||
2088 | static INLINE int | |
2089 | xlfd_numeric_swidth (font) | |
2090 | struct font_name *font; | |
2091 | { | |
2092 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2093 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2094 | } | |
2095 | ||
2096 | ||
2097 | /* Return a symbolic value for the swidth of FONT. */ | |
2098 | ||
2099 | static INLINE Lisp_Object | |
2100 | xlfd_symbolic_swidth (font) | |
2101 | struct font_name *font; | |
2102 | { | |
2103 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2104 | font, XLFD_SWIDTH, Qnormal); | |
2105 | } | |
178c5d9c | 2106 | |
82641697 GM |
2107 | |
2108 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2109 | entries. Value is a pointer to the matching table entry or null if | |
2110 | no element of TABLE contains SYMBOL. */ | |
2111 | ||
2112 | static struct table_entry * | |
2113 | face_value (table, dim, symbol) | |
2114 | struct table_entry *table; | |
2115 | int dim; | |
2116 | Lisp_Object symbol; | |
2117 | { | |
2118 | int i; | |
2119 | ||
2120 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2121 | |
82641697 GM |
2122 | for (i = 0; i < dim; ++i) |
2123 | if (EQ (*table[i].symbol, symbol)) | |
2124 | break; | |
2125 | ||
2126 | return i < dim ? table + i : NULL; | |
2127 | } | |
2128 | ||
2129 | ||
2130 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2131 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2132 | ||
2133 | static INLINE int | |
2134 | face_numeric_value (table, dim, symbol) | |
2135 | struct table_entry *table; | |
2136 | int dim; | |
2137 | Lisp_Object symbol; | |
2138 | { | |
2139 | struct table_entry *p = face_value (table, dim, symbol); | |
2140 | return p ? p->numeric : -1; | |
2141 | } | |
2142 | ||
2143 | ||
2144 | /* Return a numeric value representing the weight specified by Lisp | |
2145 | symbol WEIGHT. Value is one of the enumerators of enum | |
2146 | xlfd_weight. */ | |
2147 | ||
2148 | static INLINE int | |
2149 | face_numeric_weight (weight) | |
2150 | Lisp_Object weight; | |
2151 | { | |
2152 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2153 | } | |
2154 | ||
2155 | ||
2156 | /* Return a numeric value representing the slant specified by Lisp | |
2157 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2158 | ||
2159 | static INLINE int | |
2160 | face_numeric_slant (slant) | |
2161 | Lisp_Object slant; | |
2162 | { | |
2163 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2164 | } | |
2165 | ||
2166 | ||
2167 | /* Return a numeric value representing the swidth specified by Lisp | |
2168 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2169 | ||
2170 | static int | |
2171 | face_numeric_swidth (width) | |
2172 | Lisp_Object width; | |
2173 | { | |
2174 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2175 | } | |
2176 | ||
2177 | ||
c3cee013 | 2178 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2179 | |
2180 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2181 | ||
2182 | static INLINE int | |
2183 | xlfd_fixed_p (font) | |
2184 | struct font_name *font; | |
2185 | { | |
2186 | /* Function split_font_name converts fields to lower-case, so there | |
2187 | is no need to use tolower here. */ | |
2188 | return *font->fields[XLFD_SPACING] != 'p'; | |
2189 | } | |
2190 | ||
2191 | ||
2192 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2193 | ||
2194 | The actual height of the font when displayed on F depends on the | |
2195 | resolution of both the font and frame. For example, a 10pt font | |
2196 | designed for a 100dpi display will display larger than 10pt on a | |
2197 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2198 | display one is using. For example, some intlfonts are available in | |
2199 | 72dpi versions, only.) | |
2200 | ||
2201 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2202 | be determined. */ | |
2203 | ||
2204 | static INLINE int | |
2205 | xlfd_point_size (f, font) | |
2206 | struct frame *f; | |
2207 | struct font_name *font; | |
2208 | { | |
2209 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2210 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2211 | double pixel; | |
82641697 GM |
2212 | int real_pt; |
2213 | ||
933b0249 GM |
2214 | if (*pixel_field == '[') |
2215 | { | |
2216 | /* The pixel size field is `[A B C D]' which specifies | |
2217 | a transformation matrix. | |
2218 | ||
2219 | A B 0 | |
2220 | C D 0 | |
2221 | 0 0 1 | |
2222 | ||
2223 | by which all glyphs of the font are transformed. The spec | |
2224 | says that s scalar value N for the pixel size is equivalent | |
2225 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2226 | char *start = pixel_field + 1, *end; | |
2227 | double matrix[4]; | |
2228 | int i; | |
2229 | ||
2230 | for (i = 0; i < 4; ++i) | |
2231 | { | |
2232 | matrix[i] = strtod (start, &end); | |
2233 | start = end; | |
2234 | } | |
2235 | ||
7eb4b061 | 2236 | pixel = matrix[3]; |
933b0249 GM |
2237 | } |
2238 | else | |
2239 | pixel = atoi (pixel_field); | |
177c0ea7 | 2240 | |
933b0249 | 2241 | if (pixel == 0) |
82641697 GM |
2242 | real_pt = 0; |
2243 | else | |
933b0249 | 2244 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2245 | |
2246 | return real_pt; | |
2247 | } | |
2248 | ||
2249 | ||
39506348 KH |
2250 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2251 | of frame F. This function is used to guess a point size of font | |
2252 | when only the pixel height of the font is available. */ | |
2253 | ||
2254 | static INLINE int | |
2255 | pixel_point_size (f, pixel) | |
2256 | struct frame *f; | |
2257 | int pixel; | |
2258 | { | |
2259 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2260 | double real_pt; | |
2261 | int int_pt; | |
2262 | ||
c660ce4e GM |
2263 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2264 | point size of one dot. */ | |
2265 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2266 | int_pt = real_pt + 0.5; |
2267 | ||
2268 | return int_pt; | |
2269 | } | |
2270 | ||
2271 | ||
f70400f2 KH |
2272 | /* Return a rescaling ratio of a font of NAME. */ |
2273 | ||
2274 | static double | |
f0d62075 DL |
2275 | font_rescale_ratio (name) |
2276 | char *name; | |
f70400f2 | 2277 | { |
2d176448 | 2278 | Lisp_Object tail, elt; |
f70400f2 KH |
2279 | |
2280 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2281 | { | |
2282 | elt = XCAR (tail); | |
2283 | if (STRINGP (XCAR (elt)) && FLOATP (XCDR (elt)) | |
2284 | && fast_c_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2285 | return XFLOAT_DATA (XCDR (elt)); | |
2286 | } | |
2287 | return 1.0; | |
2288 | } | |
2289 | ||
2290 | ||
82641697 GM |
2291 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2292 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2293 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2294 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2295 | zero if the font name doesn't have the format we expect. The | |
2296 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2297 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2298 | |
2299 | static int | |
2300 | split_font_name (f, font, numeric_p) | |
2301 | struct frame *f; | |
2302 | struct font_name *font; | |
2303 | int numeric_p; | |
2304 | { | |
2305 | int i = 0; | |
2306 | int success_p; | |
f70400f2 KH |
2307 | double rescale_ratio; |
2308 | ||
2309 | if (numeric_p) | |
2310 | /* This must be done before splitting the font name. */ | |
2311 | rescale_ratio = font_rescale_ratio (font->name); | |
82641697 GM |
2312 | |
2313 | if (*font->name == '-') | |
2314 | { | |
2315 | char *p = xstrlwr (font->name) + 1; | |
2316 | ||
7b16a6bf | 2317 | while (i < XLFD_LAST) |
82641697 GM |
2318 | { |
2319 | font->fields[i] = p; | |
7b16a6bf | 2320 | ++i; |
933b0249 GM |
2321 | |
2322 | /* Pixel and point size may be of the form `[....]'. For | |
2323 | BNF, see XLFD spec, chapter 4. Negative values are | |
2324 | indicated by tilde characters which we replace with | |
2325 | `-' characters, here. */ | |
2326 | if (*p == '[' | |
d5188d8c GM |
2327 | && (i - 1 == XLFD_PIXEL_SIZE |
2328 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2329 | { |
2330 | char *start, *end; | |
2331 | int j; | |
177c0ea7 | 2332 | |
933b0249 GM |
2333 | for (++p; *p && *p != ']'; ++p) |
2334 | if (*p == '~') | |
2335 | *p = '-'; | |
2336 | ||
2337 | /* Check that the matrix contains 4 floating point | |
2338 | numbers. */ | |
3849cbf4 | 2339 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2340 | j < 4; |
2341 | ++j, start = end) | |
2342 | if (strtod (start, &end) == 0 && start == end) | |
2343 | break; | |
2344 | ||
2345 | if (j < 4) | |
2346 | break; | |
2347 | } | |
178c5d9c | 2348 | |
82641697 GM |
2349 | while (*p && *p != '-') |
2350 | ++p; | |
178c5d9c | 2351 | |
82641697 GM |
2352 | if (*p != '-') |
2353 | break; | |
178c5d9c | 2354 | |
82641697 GM |
2355 | *p++ = 0; |
2356 | } | |
2357 | } | |
2358 | ||
2359 | success_p = i == XLFD_LAST; | |
2360 | ||
2361 | /* If requested, and font name was in the expected format, | |
2362 | compute numeric values for some fields. */ | |
2363 | if (numeric_p && success_p) | |
2364 | { | |
2365 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2366 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2367 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2368 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2369 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2370 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
f70400f2 | 2371 | font->rescale_ratio = rescale_ratio; |
82641697 GM |
2372 | } |
2373 | ||
8e1b21a7 KH |
2374 | /* Initialize it to zero. It will be overridden by font_list while |
2375 | trying alternate registries. */ | |
2376 | font->registry_priority = 0; | |
2377 | ||
82641697 GM |
2378 | return success_p; |
2379 | } | |
2380 | ||
2381 | ||
2382 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2383 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2384 | |
82641697 GM |
2385 | static char * |
2386 | build_font_name (font) | |
2387 | struct font_name *font; | |
2388 | { | |
2389 | int i; | |
2390 | int size = 100; | |
2391 | char *font_name = (char *) xmalloc (size); | |
2392 | int total_length = 0; | |
2393 | ||
2394 | for (i = 0; i < XLFD_LAST; ++i) | |
2395 | { | |
2396 | /* Add 1 because of the leading `-'. */ | |
2397 | int len = strlen (font->fields[i]) + 1; | |
2398 | ||
2399 | /* Reallocate font_name if necessary. Add 1 for the final | |
2400 | NUL-byte. */ | |
2401 | if (total_length + len + 1 >= size) | |
2402 | { | |
2403 | int new_size = max (2 * size, size + len + 1); | |
2404 | int sz = new_size * sizeof *font_name; | |
2405 | font_name = (char *) xrealloc (font_name, sz); | |
2406 | size = new_size; | |
2407 | } | |
2408 | ||
2409 | font_name[total_length] = '-'; | |
2410 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2411 | total_length += len; | |
2412 | } | |
2413 | ||
2414 | font_name[total_length] = 0; | |
2415 | return font_name; | |
2416 | } | |
2417 | ||
2418 | ||
2419 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2420 | itself and all `name' fields in its elements. */ | |
2421 | ||
2422 | static INLINE void | |
2423 | free_font_names (fonts, n) | |
2424 | struct font_name *fonts; | |
2425 | int n; | |
2426 | { | |
2427 | while (n) | |
2428 | xfree (fonts[--n].name); | |
2429 | xfree (fonts); | |
2430 | } | |
2431 | ||
2432 | ||
2433 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2434 | elements using qsort and comparison function CMPFN. F is the frame | |
2435 | on which the fonts will be used. The global variable font_frame | |
2436 | is temporarily set to F to make it available in CMPFN. */ | |
2437 | ||
2438 | static INLINE void | |
2439 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2440 | struct frame *f; | |
2441 | struct font_name *fonts; | |
2442 | int nfonts; | |
2443 | int (*cmpfn) P_ ((const void *, const void *)); | |
2444 | { | |
2445 | font_frame = f; | |
2446 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2447 | font_frame = NULL; | |
2448 | } | |
2449 | ||
2450 | ||
2451 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2452 | display in x_display_list. FONTS is a pointer to a vector of | |
2453 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2454 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2455 | found matching PATTERN. |
82641697 GM |
2456 | |
2457 | For all fonts found, set FONTS[i].name to the name of the font, | |
2458 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2459 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2460 | |
2461 | static int | |
ee5be7c3 | 2462 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2463 | struct frame *f; |
2464 | char *pattern; | |
ee5be7c3 | 2465 | struct font_name **pfonts; |
82641697 | 2466 | int nfonts, try_alternatives_p; |
82641697 | 2467 | { |
702a1e8e | 2468 | int n, nignored; |
82641697 | 2469 | |
c3cee013 JR |
2470 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2471 | better to do it the other way around. */ | |
2472 | Lisp_Object lfonts; | |
2473 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2474 | struct font_name *fonts = 0; |
2475 | int num_fonts = nfonts; | |
c3cee013 | 2476 | |
ee5be7c3 | 2477 | *pfonts = 0; |
c3cee013 JR |
2478 | lpattern = build_string (pattern); |
2479 | ||
2480 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2481 | #ifdef WINDOWSNT |
a86110a8 | 2482 | BLOCK_INPUT; |
c3cee013 | 2483 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2484 | UNBLOCK_INPUT; |
d26d6fd9 | 2485 | #else |
702a1e8e | 2486 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2487 | #endif |
c3cee013 | 2488 | |
ee5be7c3 | 2489 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2490 | num_fonts = XFASTINT (Flength (lfonts)); |
2d176448 | 2491 | |
d26d6fd9 GM |
2492 | /* Make a copy of the font names we got from X, and |
2493 | split them into fields. */ | |
702a1e8e | 2494 | n = nignored = 0; |
ee5be7c3 | 2495 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2496 | { |
d26d6fd9 | 2497 | Lisp_Object elt, tail; |
53c208f6 | 2498 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2499 | |
702a1e8e | 2500 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2501 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2502 | { |
d26d6fd9 GM |
2503 | elt = XCAR (tail); |
2504 | if (STRINGP (elt) | |
2505 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2506 | break; | |
2507 | } | |
2508 | if (!NILP (tail)) | |
702a1e8e GM |
2509 | { |
2510 | ++nignored; | |
2511 | continue; | |
2512 | } | |
c824bfbc | 2513 | |
ee5be7c3 JD |
2514 | if (! fonts) |
2515 | { | |
2516 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2517 | fonts = *pfonts; | |
2518 | } | |
2519 | ||
d26d6fd9 GM |
2520 | /* Make a copy of the font name. */ |
2521 | fonts[n].name = xstrdup (name); | |
82641697 | 2522 | |
702a1e8e | 2523 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2524 | { |
702a1e8e GM |
2525 | if (font_scalable_p (fonts + n) |
2526 | && !may_use_scalable_font_p (name)) | |
2527 | { | |
2528 | ++nignored; | |
2529 | xfree (fonts[n].name); | |
2530 | } | |
82641697 | 2531 | else |
d26d6fd9 | 2532 | ++n; |
82641697 | 2533 | } |
d26d6fd9 | 2534 | else |
702a1e8e GM |
2535 | xfree (fonts[n].name); |
2536 | } | |
2537 | ||
82641697 GM |
2538 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2539 | if (n == 0 && try_alternatives_p) | |
2540 | { | |
2541 | Lisp_Object list = Valternate_fontname_alist; | |
2542 | ||
72ecb43c JD |
2543 | if (*pfonts) |
2544 | { | |
2545 | xfree (*pfonts); | |
2546 | *pfonts = 0; | |
2547 | } | |
2548 | ||
82641697 GM |
2549 | while (CONSP (list)) |
2550 | { | |
2551 | Lisp_Object entry = XCAR (list); | |
2552 | if (CONSP (entry) | |
2553 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2554 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2555 | break; |
2556 | list = XCDR (list); | |
2557 | } | |
2558 | ||
2559 | if (CONSP (list)) | |
2560 | { | |
2561 | Lisp_Object patterns = XCAR (list); | |
2562 | Lisp_Object name; | |
178c5d9c | 2563 | |
82641697 GM |
2564 | while (CONSP (patterns) |
2565 | /* If list is screwed up, give up. */ | |
2566 | && (name = XCAR (patterns), | |
2567 | STRINGP (name)) | |
2568 | /* Ignore patterns equal to PATTERN because we tried that | |
2569 | already with no success. */ | |
d5db4077 KR |
2570 | && (strcmp (SDATA (name), pattern) == 0 |
2571 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2572 | pfonts, nfonts, 0), |
82641697 GM |
2573 | n == 0))) |
2574 | patterns = XCDR (patterns); | |
2575 | } | |
2576 | } | |
178c5d9c | 2577 | |
82641697 GM |
2578 | return n; |
2579 | } | |
178c5d9c | 2580 | |
82641697 | 2581 | |
b64c9a04 KH |
2582 | /* Check if a font matching pattern_offset_t on frame F is available |
2583 | or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case, | |
2584 | a font name pattern is generated from FAMILY and REGISTRY. */ | |
2585 | ||
2586 | int | |
2587 | face_font_available_p (f, pattern) | |
2588 | struct frame *f; | |
2589 | Lisp_Object pattern; | |
2590 | { | |
2591 | Lisp_Object fonts; | |
2592 | ||
2593 | if (! STRINGP (pattern)) | |
2594 | { | |
2595 | Lisp_Object family, registry; | |
2596 | char *family_str, *registry_str, *pattern_str; | |
2597 | ||
2598 | CHECK_CONS (pattern); | |
2599 | family = XCAR (pattern); | |
2600 | if (NILP (family)) | |
2601 | family_str = "*"; | |
2602 | else | |
2603 | { | |
2604 | CHECK_STRING (family); | |
2605 | family_str = (char *) SDATA (family); | |
2606 | } | |
2607 | registry = XCDR (pattern); | |
2608 | if (NILP (registry)) | |
2609 | registry_str = "*"; | |
2610 | else | |
2611 | { | |
2612 | CHECK_STRING (registry); | |
2613 | registry_str = (char *) SDATA (registry); | |
2614 | } | |
2615 | ||
2616 | pattern_str = (char *) alloca (strlen (family_str) | |
2617 | + strlen (registry_str) | |
2618 | + 10); | |
2619 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2620 | strcat (pattern_str, family_str); | |
2621 | strcat (pattern_str, "-*-"); | |
2622 | strcat (pattern_str, registry_str); | |
2623 | if (!index (registry_str, '-')) | |
2624 | { | |
2625 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2626 | strcat (pattern_str, "-*"); | |
2627 | else | |
2628 | strcat (pattern_str, "*-*"); | |
2629 | } | |
2630 | pattern = build_string (pattern_str); | |
2631 | } | |
2632 | ||
2633 | /* Get the list of fonts matching PATTERN. */ | |
2634 | #ifdef WINDOWSNT | |
2635 | BLOCK_INPUT; | |
2636 | fonts = w32_list_fonts (f, pattern, 0, 1); | |
2637 | UNBLOCK_INPUT; | |
2638 | #else | |
2639 | fonts = x_list_fonts (f, pattern, -1, 1); | |
2640 | #endif | |
2641 | return XINT (Flength (fonts)); | |
2642 | } | |
2643 | ||
2644 | ||
82641697 GM |
2645 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2646 | using comparison function CMPFN. Value is the number of fonts | |
2647 | found. If value is non-zero, *FONTS is set to a vector of | |
2648 | font_name structures allocated from the heap containing matching | |
2649 | fonts. Each element of *FONTS contains a name member that is also | |
2650 | allocated from the heap. Font names in these structures are split | |
2651 | into fields. Use free_font_names to free such an array. */ | |
2652 | ||
2653 | static int | |
2654 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2655 | struct frame *f; | |
2656 | char *pattern; | |
2657 | int (*cmpfn) P_ ((const void *, const void *)); | |
2658 | struct font_name **fonts; | |
2659 | { | |
2660 | int nfonts; | |
178c5d9c | 2661 | |
82641697 | 2662 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2663 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2664 | if (INTEGERP (Vfont_list_limit)) |
2665 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2666 | |
ee5be7c3 JD |
2667 | *fonts = NULL; |
2668 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2669 | |
2670 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2671 | fonts were found, make sure to set *FONTS to null. */ |
2672 | if (nfonts) | |
2673 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2674 | else if (*fonts) |
82641697 GM |
2675 | { |
2676 | xfree (*fonts); | |
2677 | *fonts = NULL; | |
2678 | } | |
2679 | ||
2680 | return nfonts; | |
2681 | } | |
2682 | ||
2683 | ||
2684 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2685 | strcmp. Sort order is given by the global variable | |
2686 | font_sort_order. Font names are sorted so that, everything else | |
2687 | being equal, fonts with a resolution closer to that of the frame on | |
2688 | which they are used are listed first. The global variable | |
2689 | font_frame is the frame on which we operate. */ | |
2690 | ||
2691 | static int | |
2692 | cmp_font_names (a, b) | |
2693 | const void *a, *b; | |
2694 | { | |
2695 | struct font_name *x = (struct font_name *) a; | |
2696 | struct font_name *y = (struct font_name *) b; | |
2697 | int cmp; | |
2698 | ||
2699 | /* All strings have been converted to lower-case by split_font_name, | |
2700 | so we can use strcmp here. */ | |
2701 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2702 | if (cmp == 0) | |
2703 | { | |
2704 | int i; | |
178c5d9c | 2705 | |
82641697 GM |
2706 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2707 | { | |
2708 | int j = font_sort_order[i]; | |
2709 | cmp = x->numeric[j] - y->numeric[j]; | |
2710 | } | |
2711 | ||
2712 | if (cmp == 0) | |
2713 | { | |
2714 | /* Everything else being equal, we prefer fonts with an | |
2715 | y-resolution closer to that of the frame. */ | |
2716 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2717 | int x_resy = x->numeric[XLFD_RESY]; | |
2718 | int y_resy = y->numeric[XLFD_RESY]; | |
2719 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2720 | } | |
2721 | } | |
2722 | ||
2723 | return cmp; | |
2724 | } | |
2725 | ||
2726 | ||
2727 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2728 | is non-nil list fonts matching that pattern. Otherwise, if |
2729 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2730 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2731 | structures allocated from the heap containing the fonts found. | |
2732 | Value is the number of fonts found. */ | |
82641697 GM |
2733 | |
2734 | static int | |
32fcc231 | 2735 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2736 | struct frame *f; |
39506348 | 2737 | Lisp_Object pattern, family, registry; |
82641697 GM |
2738 | struct font_name **fonts; |
2739 | { | |
39506348 KH |
2740 | char *pattern_str, *family_str, *registry_str; |
2741 | ||
2742 | if (NILP (pattern)) | |
82641697 | 2743 | { |
d5db4077 KR |
2744 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2745 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2746 | |
39506348 | 2747 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2748 | + strlen (registry_str) |
2749 | + 10); | |
2750 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2751 | strcat (pattern_str, family_str); | |
2752 | strcat (pattern_str, "-*-"); | |
2753 | strcat (pattern_str, registry_str); | |
2754 | if (!index (registry_str, '-')) | |
2755 | { | |
2756 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2757 | strcat (pattern_str, "-*"); | |
2758 | else | |
2759 | strcat (pattern_str, "*-*"); | |
2760 | } | |
82641697 | 2761 | } |
39506348 | 2762 | else |
d5db4077 | 2763 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2764 | |
39506348 | 2765 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2766 | } |
2767 | ||
2768 | ||
8e1b21a7 KH |
2769 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2770 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2771 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2772 | freed. */ | |
2773 | ||
2774 | static struct font_name * | |
2775 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2776 | struct font_name *fonts1, *fonts2; | |
2777 | int nfonts1, nfonts2; | |
2778 | { | |
2779 | int new_nfonts = nfonts1 + nfonts2; | |
2780 | struct font_name *new_fonts; | |
2781 | ||
2782 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2783 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2784 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2785 | xfree (fonts1); | |
2786 | xfree (fonts2); | |
2787 | return new_fonts; | |
2788 | } | |
2789 | ||
2790 | ||
32fcc231 GM |
2791 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2792 | ||
2793 | If PATTERN is non-nil list fonts matching that pattern. | |
2794 | ||
8e1b21a7 KH |
2795 | If REGISTRY is non-nil, return fonts with that registry and the |
2796 | alternative registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2797 | |
32fcc231 GM |
2798 | If REGISTRY is nil return fonts of any registry. |
2799 | ||
2800 | Set *FONTS to a vector of font_name structures allocated from the | |
2801 | heap containing the fonts found. Value is the number of fonts | |
2802 | found. */ | |
2803 | ||
2804 | static int | |
2805 | font_list (f, pattern, family, registry, fonts) | |
2806 | struct frame *f; | |
2807 | Lisp_Object pattern, family, registry; | |
2808 | struct font_name **fonts; | |
2809 | { | |
2810 | int nfonts = font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2811 | |
8e1b21a7 | 2812 | if (!NILP (registry) |
32fcc231 GM |
2813 | && CONSP (Vface_alternative_font_registry_alist)) |
2814 | { | |
2815 | Lisp_Object alter; | |
2816 | ||
2817 | alter = Fassoc (registry, Vface_alternative_font_registry_alist); | |
2818 | if (CONSP (alter)) | |
2819 | { | |
8e1b21a7 KH |
2820 | int reg_prio, i; |
2821 | ||
2822 | for (alter = XCDR (alter), reg_prio = 1; | |
2823 | CONSP (alter); | |
2824 | alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2825 | if (STRINGP (XCAR (alter))) |
8e1b21a7 KH |
2826 | { |
2827 | int nfonts2; | |
2828 | struct font_name *fonts2; | |
2829 | ||
2830 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), | |
2831 | &fonts2); | |
2832 | for (i = 0; i < nfonts2; i++) | |
2833 | fonts2[i].registry_priority = reg_prio; | |
2834 | *fonts = (nfonts > 0 | |
2835 | ? concat_font_list (*fonts, nfonts, fonts2, nfonts2) | |
2836 | : fonts2); | |
2837 | nfonts += nfonts2; | |
2838 | } | |
32fcc231 GM |
2839 | } |
2840 | } | |
2841 | ||
2842 | return nfonts; | |
2843 | } | |
2844 | ||
2845 | ||
82641697 | 2846 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2847 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2848 | entries. */ |
2849 | ||
2850 | static void | |
2851 | remove_duplicates (list) | |
2852 | Lisp_Object list; | |
2853 | { | |
2854 | Lisp_Object tail = list; | |
178c5d9c | 2855 | |
82641697 GM |
2856 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2857 | { | |
2858 | Lisp_Object next = XCDR (tail); | |
2859 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2860 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2861 | else |
2862 | tail = XCDR (tail); | |
2863 | } | |
2864 | } | |
2865 | ||
2866 | ||
92610620 | 2867 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2868 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2869 | If FAMILY is omitted or nil, list all families. |
2870 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2871 | `?' and `*'. | |
2872 | If FRAME is omitted or nil, use the selected frame. | |
2873 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2874 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2875 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2876 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2877 | width, weight and slant of the font. These symbols are the same as for | |
2878 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2879 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2880 | giving the registry and encoding of the font. | |
2881 | The result list is sorted according to the current setting of | |
7ee72033 MB |
2882 | the face font sort order. */) |
2883 | (family, frame) | |
82641697 GM |
2884 | Lisp_Object family, frame; |
2885 | { | |
2886 | struct frame *f = check_x_frame (frame); | |
2887 | struct font_name *fonts; | |
2888 | int i, nfonts; | |
2889 | Lisp_Object result; | |
2890 | struct gcpro gcpro1; | |
82641697 | 2891 | |
39506348 | 2892 | if (!NILP (family)) |
b7826503 | 2893 | CHECK_STRING (family); |
178c5d9c | 2894 | |
82641697 GM |
2895 | result = Qnil; |
2896 | GCPRO1 (result); | |
39506348 | 2897 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2898 | for (i = nfonts - 1; i >= 0; --i) |
2899 | { | |
057df17c GM |
2900 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2901 | char *tem; | |
82641697 | 2902 | |
82641697 GM |
2903 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2904 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2905 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2906 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2907 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2908 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2909 | tem = build_font_name (fonts + i); |
2910 | ASET (v, 6, build_string (tem)); | |
2911 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2912 | fonts[i].fields[XLFD_ENCODING]); | |
2913 | ASET (v, 7, build_string (tem)); | |
2914 | xfree (tem); | |
178c5d9c | 2915 | |
82641697 | 2916 | result = Fcons (v, result); |
82641697 GM |
2917 | } |
2918 | ||
2919 | remove_duplicates (result); | |
2920 | free_font_names (fonts, nfonts); | |
2921 | UNGCPRO; | |
2922 | return result; | |
2923 | } | |
2924 | ||
2925 | ||
2926 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2927 | 0, 1, 0, | |
7ee72033 | 2928 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
2929 | If FRAME is omitted or nil, use the selected frame. |
2930 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
2931 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
2932 | are fixed-pitch. */) |
2933 | (frame) | |
82641697 GM |
2934 | Lisp_Object frame; |
2935 | { | |
2936 | struct frame *f = check_x_frame (frame); | |
2937 | int nfonts, i; | |
2938 | struct font_name *fonts; | |
2939 | Lisp_Object result; | |
2940 | struct gcpro gcpro1; | |
aed13378 | 2941 | int count = SPECPDL_INDEX (); |
178c5d9c | 2942 | |
ee5be7c3 JD |
2943 | /* Let's consider all fonts. */ |
2944 | specbind (intern ("font-list-limit"), make_number (-1)); | |
2945 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 2946 | |
82641697 GM |
2947 | result = Qnil; |
2948 | GCPRO1 (result); | |
2949 | for (i = nfonts - 1; i >= 0; --i) | |
2950 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2951 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2952 | result); | |
2953 | ||
2954 | remove_duplicates (result); | |
2955 | free_font_names (fonts, nfonts); | |
2956 | UNGCPRO; | |
057df17c | 2957 | return unbind_to (count, result); |
82641697 GM |
2958 | } |
2959 | ||
2960 | ||
2961 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 2962 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
2963 | If optional arguments FACE and FRAME are specified, return only fonts |
2964 | the same size as FACE on FRAME. | |
2965 | PATTERN is a string, perhaps with wildcard characters; | |
2966 | the * character matches any substring, and | |
2967 | the ? character matches any single character. | |
2968 | PATTERN is case-insensitive. | |
2969 | FACE is a face name--a symbol. | |
2970 | ||
2971 | The return value is a list of strings, suitable as arguments to | |
2972 | set-face-font. | |
2973 | ||
2974 | Fonts Emacs can't use may or may not be excluded | |
2975 | even if they match PATTERN and FACE. | |
2976 | The optional fourth argument MAXIMUM sets a limit on how many | |
2977 | fonts to match. The first MAXIMUM fonts are reported. | |
2978 | The optional fifth argument WIDTH, if specified, is a number of columns | |
2979 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
2980 | the WIDTH times as wide as FACE on FRAME. */) |
2981 | (pattern, face, frame, maximum, width) | |
82641697 GM |
2982 | Lisp_Object pattern, face, frame, maximum, width; |
2983 | { | |
2984 | struct frame *f; | |
2985 | int size; | |
2986 | int maxnames; | |
2987 | ||
2988 | check_x (); | |
b7826503 | 2989 | CHECK_STRING (pattern); |
178c5d9c | 2990 | |
82641697 | 2991 | if (NILP (maximum)) |
ee5be7c3 | 2992 | maxnames = -1; |
82641697 GM |
2993 | else |
2994 | { | |
b7826503 | 2995 | CHECK_NATNUM (maximum); |
82641697 GM |
2996 | maxnames = XINT (maximum); |
2997 | } | |
2998 | ||
2999 | if (!NILP (width)) | |
b7826503 | 3000 | CHECK_NUMBER (width); |
82641697 GM |
3001 | |
3002 | /* We can't simply call check_x_frame because this function may be | |
3003 | called before any frame is created. */ | |
3004 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 3005 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
3006 | { |
3007 | /* Perhaps we have not yet created any frame. */ | |
3008 | f = NULL; | |
3009 | face = Qnil; | |
3010 | } | |
3011 | ||
3012 | /* Determine the width standard for comparison with the fonts we find. */ | |
3013 | ||
3014 | if (NILP (face)) | |
3015 | size = 0; | |
3016 | else | |
3017 | { | |
3018 | /* This is of limited utility since it works with character | |
3019 | widths. Keep it for compatibility. --gerd. */ | |
2272e967 | 3020 | int face_id = lookup_named_face (f, face, 0, 0); |
b5de343d GM |
3021 | struct face *face = (face_id < 0 |
3022 | ? NULL | |
3023 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 3024 | |
c623bbd3 KS |
3025 | #ifdef WINDOWSNT |
3026 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
3027 | not maximum as on X. Redefine here. */ | |
3028 | #undef FONT_WIDTH | |
3029 | #define FONT_WIDTH FONT_MAX_WIDTH | |
3030 | #endif | |
3031 | ||
b5de343d | 3032 | if (face && face->font) |
c3cee013 | 3033 | size = FONT_WIDTH (face->font); |
82641697 | 3034 | else |
c623bbd3 | 3035 | size = FONT_WIDTH (FRAME_FONT (f)); /* FRAME_COLUMN_WIDTH (f) */ |
82641697 GM |
3036 | |
3037 | if (!NILP (width)) | |
3038 | size *= XINT (width); | |
3039 | } | |
3040 | ||
3041 | { | |
3042 | Lisp_Object args[2]; | |
3043 | ||
3044 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
3045 | if (f == NULL) | |
3046 | /* We don't have to check fontsets. */ | |
3047 | return args[0]; | |
3048 | args[1] = list_fontsets (f, pattern, size); | |
3049 | return Fnconc (2, args); | |
3050 | } | |
3051 | } | |
3052 | ||
c3cee013 | 3053 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3054 | |
3055 | ||
3056 | \f | |
3057 | /*********************************************************************** | |
3058 | Lisp Faces | |
3059 | ***********************************************************************/ | |
3060 | ||
a08332c0 GM |
3061 | /* Access face attributes of face LFACE, a Lisp vector. */ |
3062 | ||
3063 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
3064 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
3065 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
3066 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
3067 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
3068 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
3069 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
3070 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
3071 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
3072 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
3073 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
3074 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
3075 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
3076 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
3077 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
3078 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
82641697 GM |
3079 | |
3080 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
3081 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
3082 | ||
3083 | #define LFACEP(LFACE) \ | |
3084 | (VECTORP (LFACE) \ | |
3085 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 3086 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 3087 | |
178c5d9c | 3088 | |
82641697 GM |
3089 | #if GLYPH_DEBUG |
3090 | ||
3091 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
3092 | ||
3093 | static void | |
3094 | check_lface_attrs (attrs) | |
3095 | Lisp_Object *attrs; | |
3096 | { | |
3097 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2ff10663 | 3098 | || IGNORE_DEFFACE_P (attrs[LFACE_FAMILY_INDEX]) |
82641697 GM |
3099 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); |
3100 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2ff10663 | 3101 | || IGNORE_DEFFACE_P (attrs[LFACE_SWIDTH_INDEX]) |
82641697 | 3102 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); |
a08332c0 | 3103 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2ff10663 | 3104 | || IGNORE_DEFFACE_P (attrs[LFACE_AVGWIDTH_INDEX]) |
a08332c0 | 3105 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); |
82641697 | 3106 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2ff10663 | 3107 | || IGNORE_DEFFACE_P (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3108 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3109 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3110 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 | 3111 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2ff10663 | 3112 | || IGNORE_DEFFACE_P (attrs[LFACE_WEIGHT_INDEX]) |
82641697 GM |
3113 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); |
3114 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2ff10663 | 3115 | || IGNORE_DEFFACE_P (attrs[LFACE_SLANT_INDEX]) |
82641697 GM |
3116 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); |
3117 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2ff10663 | 3118 | || IGNORE_DEFFACE_P (attrs[LFACE_UNDERLINE_INDEX]) |
82641697 GM |
3119 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) |
3120 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3121 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2ff10663 | 3122 | || IGNORE_DEFFACE_P (attrs[LFACE_OVERLINE_INDEX]) |
82641697 GM |
3123 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) |
3124 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3125 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2ff10663 | 3126 | || IGNORE_DEFFACE_P (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
82641697 GM |
3127 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) |
3128 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3129 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2ff10663 | 3130 | || IGNORE_DEFFACE_P (attrs[LFACE_BOX_INDEX]) |
82641697 GM |
3131 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) |
3132 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3133 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3134 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3135 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2ff10663 | 3136 | || IGNORE_DEFFACE_P (attrs[LFACE_INVERSE_INDEX]) |
82641697 GM |
3137 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); |
3138 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2ff10663 | 3139 | || IGNORE_DEFFACE_P (attrs[LFACE_FOREGROUND_INDEX]) |
82641697 GM |
3140 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); |
3141 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2ff10663 | 3142 | || IGNORE_DEFFACE_P (attrs[LFACE_BACKGROUND_INDEX]) |
82641697 | 3143 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); |
2c20458f | 3144 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2ff10663 | 3145 | || IGNORE_DEFFACE_P (attrs[LFACE_INHERIT_INDEX]) |
2c20458f MB |
3146 | || NILP (attrs[LFACE_INHERIT_INDEX]) |
3147 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3148 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3149 | #ifdef HAVE_WINDOW_SYSTEM |
3150 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2ff10663 | 3151 | || IGNORE_DEFFACE_P (attrs[LFACE_STIPPLE_INDEX]) |
82641697 | 3152 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) |
fef04523 | 3153 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3154 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
2ff10663 | 3155 | || IGNORE_DEFFACE_P (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
3156 | || NILP (attrs[LFACE_FONT_INDEX]) |
3157 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
3158 | #endif |
3159 | } | |
3160 | ||
3161 | ||
3162 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3163 | ||
3164 | static void | |
3165 | check_lface (lface) | |
3166 | Lisp_Object lface; | |
3167 | { | |
3168 | if (!NILP (lface)) | |
3169 | { | |
3170 | xassert (LFACEP (lface)); | |
3171 | check_lface_attrs (XVECTOR (lface)->contents); | |
3172 | } | |
3173 | } | |
3174 | ||
3175 | #else /* GLYPH_DEBUG == 0 */ | |
3176 | ||
3177 | #define check_lface_attrs(attrs) (void) 0 | |
3178 | #define check_lface(lface) (void) 0 | |
3179 | ||
3180 | #endif /* GLYPH_DEBUG == 0 */ | |
3181 | ||
3182 | ||
a0a23346 MB |
3183 | \f |
3184 | /* Face-merge cycle checking. */ | |
3185 | ||
3186 | /* A `named merge point' is simply a point during face-merging where we | |
3187 | look up a face by name. We keep a stack of which named lookups we're | |
3188 | currently processing so that we can easily detect cycles, using a | |
3189 | linked- list of struct named_merge_point structures, typically | |
3190 | allocated on the stack frame of the named lookup functions which are | |
3191 | active (so no consing is required). */ | |
3192 | struct named_merge_point | |
3193 | { | |
3194 | Lisp_Object face_name; | |
3195 | struct named_merge_point *prev; | |
3196 | }; | |
3197 | ||
3198 | ||
3199 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
3200 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
6e87ac8f MB |
3201 | FACE_NAME, as the head of the linked list pointed to by |
3202 | NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 MB |
3203 | |
3204 | static INLINE int | |
3205 | push_named_merge_point (struct named_merge_point *new_named_merge_point, | |
3206 | Lisp_Object face_name, | |
3207 | struct named_merge_point **named_merge_points) | |
3208 | { | |
3209 | struct named_merge_point *prev; | |
3210 | ||
3211 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
3212 | if (EQ (face_name, prev->face_name)) | |
6e87ac8f | 3213 | return 0; |
a0a23346 MB |
3214 | |
3215 | new_named_merge_point->face_name = face_name; | |
3216 | new_named_merge_point->prev = *named_merge_points; | |
3217 | ||
3218 | *named_merge_points = new_named_merge_point; | |
3219 | ||
3220 | return 1; | |
3221 | } | |
3222 | ||
3223 | \f | |
3224 | ||
3225 | ||
39506348 | 3226 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
3227 | to make it a symbol. If FACE_NAME is an alias for another face, |
3228 | return that face's name. | |
3229 | ||
3230 | Return default face in case of errors. */ | |
c7ae3284 GM |
3231 | |
3232 | static Lisp_Object | |
d1bf13b3 | 3233 | resolve_face_name (face_name, signal_p) |
c7ae3284 | 3234 | Lisp_Object face_name; |
d1bf13b3 | 3235 | int signal_p; |
c7ae3284 | 3236 | { |
d1bf13b3 KS |
3237 | Lisp_Object orig_face; |
3238 | Lisp_Object tortoise, hare; | |
178c5d9c | 3239 | |
c7ae3284 | 3240 | if (STRINGP (face_name)) |
d5db4077 | 3241 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3242 | |
d1bf13b3 KS |
3243 | if (NILP (face_name) || !SYMBOLP (face_name)) |
3244 | return face_name; | |
3245 | ||
3246 | orig_face = face_name; | |
3247 | tortoise = hare = face_name; | |
3248 | ||
3249 | while (1) | |
c7ae3284 | 3250 | { |
d1bf13b3 KS |
3251 | face_name = hare; |
3252 | hare = Fget (hare, Qface_alias); | |
3253 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 3254 | break; |
d1bf13b3 KS |
3255 | |
3256 | face_name = hare; | |
3257 | hare = Fget (hare, Qface_alias); | |
3258 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 3259 | break; |
d1bf13b3 KS |
3260 | |
3261 | tortoise = Fget (tortoise, Qface_alias); | |
3262 | if (EQ (hare, tortoise)) | |
3263 | { | |
3264 | if (signal_p) | |
8009eb44 | 3265 | xsignal1 (Qcircular_list, orig_face); |
d1bf13b3 KS |
3266 | return Qdefault; |
3267 | } | |
c7ae3284 GM |
3268 | } |
3269 | ||
3270 | return face_name; | |
3271 | } | |
3272 | ||
3273 | ||
82641697 | 3274 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3275 | return the definition for new frames. FACE_NAME may be a string or |
3276 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3277 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3278 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3279 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3280 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3281 | name. */ | |
82641697 GM |
3282 | |
3283 | static INLINE Lisp_Object | |
3284 | lface_from_face_name (f, face_name, signal_p) | |
3285 | struct frame *f; | |
3286 | Lisp_Object face_name; | |
3287 | int signal_p; | |
3288 | { | |
c7ae3284 | 3289 | Lisp_Object lface; |
82641697 | 3290 | |
d1bf13b3 | 3291 | face_name = resolve_face_name (face_name, signal_p); |
92610620 | 3292 | |
82641697 GM |
3293 | if (f) |
3294 | lface = assq_no_quit (face_name, f->face_alist); | |
3295 | else | |
3296 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3297 | ||
3298 | if (CONSP (lface)) | |
3299 | lface = XCDR (lface); | |
3300 | else if (signal_p) | |
3301 | signal_error ("Invalid face", face_name); | |
3302 | ||
3303 | check_lface (lface); | |
3304 | return lface; | |
3305 | } | |
3306 | ||
3307 | ||
3308 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3309 | frame F. Store the resulting attributes in ATTRS which must point | |
3310 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3311 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3312 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3313 | ||
3314 | static INLINE int | |
3315 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3316 | struct frame *f; | |
3317 | Lisp_Object face_name; | |
3318 | Lisp_Object *attrs; | |
3319 | int signal_p; | |
3320 | { | |
3321 | Lisp_Object lface; | |
3322 | int success_p; | |
3323 | ||
3324 | lface = lface_from_face_name (f, face_name, signal_p); | |
3325 | if (!NILP (lface)) | |
3326 | { | |
3327 | bcopy (XVECTOR (lface)->contents, attrs, | |
3328 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3329 | success_p = 1; | |
3330 | } | |
3331 | else | |
3332 | success_p = 0; | |
3333 | ||
3334 | return success_p; | |
3335 | } | |
3336 | ||
3337 | ||
3338 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3339 | specified, i.e. are non-nil. */ | |
3340 | ||
3341 | static int | |
3342 | lface_fully_specified_p (attrs) | |
3343 | Lisp_Object *attrs; | |
3344 | { | |
3345 | int i; | |
3346 | ||
3347 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 GM |
3348 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
3349 | && i != LFACE_AVGWIDTH_INDEX) | |
2ff10663 | 3350 | if ((UNSPECIFIEDP (attrs[i]) || IGNORE_DEFFACE_P (attrs[i])) |
5202d23d JD |
3351 | #ifdef MAC_OS |
3352 | /* MAC_TODO: No stipple support on Mac OS yet, this index is | |
3353 | always unspecified. */ | |
3354 | && i != LFACE_STIPPLE_INDEX | |
3355 | #endif | |
3356 | ) | |
6288c62f | 3357 | break; |
82641697 GM |
3358 | |
3359 | return i == LFACE_VECTOR_SIZE; | |
3360 | } | |
3361 | ||
c3cee013 | 3362 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3363 | |
39506348 KH |
3364 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3365 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3366 | unspecified attributes of LFACE. The exception is `font' | |
3367 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3368 | ||
3369 | If FONTNAME is not available on frame F, | |
3370 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3371 | If the fullname is not in a valid XLFD format, | |
3372 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3373 | in LFACE and return 1. | |
3374 | Otherwise, return 1. */ | |
178c5d9c | 3375 | |
82641697 | 3376 | static int |
39506348 | 3377 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3378 | struct frame *f; |
3379 | Lisp_Object lface; | |
39506348 | 3380 | Lisp_Object fontname; |
3221576b | 3381 | int force_p, may_fail_p; |
82641697 GM |
3382 | { |
3383 | struct font_name font; | |
3384 | char *buffer; | |
3385 | int pt; | |
39506348 KH |
3386 | int have_xlfd_p; |
3387 | int fontset; | |
d5db4077 | 3388 | char *font_name = SDATA (fontname); |
39506348 | 3389 | struct font_info *font_info; |
82641697 | 3390 | |
39506348 KH |
3391 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3392 | fontset = fs_query_fontset (fontname, 0); | |
3393 | if (fontset >= 0) | |
d5db4077 | 3394 | font_name = SDATA (fontset_ascii (fontset)); |
39506348 KH |
3395 | |
3396 | /* Check if FONT_NAME is surely available on the system. Usually | |
3397 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3398 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3399 | caching it now is not futail because we anyway load the font | |
3400 | later. */ | |
3401 | BLOCK_INPUT; | |
3402 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
3403 | UNBLOCK_INPUT; | |
82641697 | 3404 | |
39506348 | 3405 | if (!font_info) |
3221576b GM |
3406 | { |
3407 | if (may_fail_p) | |
3408 | return 0; | |
39506348 | 3409 | abort (); |
3221576b | 3410 | } |
39506348 KH |
3411 | |
3412 | font.name = STRDUPA (font_info->full_name); | |
3413 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3414 | |
82641697 | 3415 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3416 | new frames would never take effect. If we couldn't get a font |
3417 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3418 | |
82641697 GM |
3419 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3420 | { | |
39506348 KH |
3421 | Lisp_Object val; |
3422 | if (have_xlfd_p) | |
3423 | { | |
3424 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3425 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3426 | + 2); | |
3427 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3428 | font.fields[XLFD_FAMILY]); | |
3429 | val = build_string (buffer); | |
3430 | } | |
3431 | else | |
3432 | val = build_string ("*"); | |
3433 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3434 | } |
3435 | ||
3436 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3437 | { | |
39506348 KH |
3438 | if (have_xlfd_p) |
3439 | pt = xlfd_point_size (f, &font); | |
3440 | else | |
3441 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3442 | xassert (pt > 0); |
3443 | LFACE_HEIGHT (lface) = make_number (pt); | |
3444 | } | |
3445 | ||
3446 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3447 | LFACE_SWIDTH (lface) |
3448 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3449 | |
a08332c0 GM |
3450 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3451 | LFACE_AVGWIDTH (lface) | |
3452 | = (have_xlfd_p | |
3453 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3454 | : Qunspecified); | |
3455 | ||
82641697 | 3456 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3457 | LFACE_WEIGHT (lface) |
3458 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3459 | |
3460 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3461 | LFACE_SLANT (lface) |
3462 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3463 | |
39506348 | 3464 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3465 | |
82641697 GM |
3466 | return 1; |
3467 | } | |
d12d0a9b | 3468 | |
c3cee013 | 3469 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3470 | |
3471 | ||
2c20458f MB |
3472 | /* Merges the face height FROM with the face height TO, and returns the |
3473 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3474 | returned instead. FROM and TO may be either absolute face heights or |
3475 | `relative' heights; the returned value is always an absolute height | |
3476 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3477 | will be protected from garbage-collection if this function makes a | |
3478 | call into lisp. */ | |
2c20458f MB |
3479 | |
3480 | Lisp_Object | |
e1e419ec RS |
3481 | merge_face_heights (from, to, invalid) |
3482 | Lisp_Object from, to, invalid; | |
2c20458f | 3483 | { |
cdfaafa9 | 3484 | Lisp_Object result = invalid; |
2c20458f MB |
3485 | |
3486 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3487 | /* FROM is absolute, just use it as is. */ |
3488 | result = from; | |
3489 | else if (FLOATP (from)) | |
3490 | /* FROM is a scale, use it to adjust TO. */ | |
3491 | { | |
3492 | if (INTEGERP (to)) | |
3493 | /* relative X absolute => absolute */ | |
c319cf24 | 3494 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3495 | else if (FLOATP (to)) |
3496 | /* relative X relative => relative */ | |
3497 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
3498 | else if (UNSPECIFIEDP (to)) |
3499 | result = from; | |
2c20458f | 3500 | } |
2c20458f | 3501 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3502 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3503 | { |
3504 | /* Call function with current height as argument. | |
3505 | From is the new height. */ | |
cdfaafa9 | 3506 | Lisp_Object args[2]; |
2c20458f MB |
3507 | |
3508 | args[0] = from; | |
3509 | args[1] = to; | |
cdfaafa9 | 3510 | result = safe_call (2, args); |
2c20458f | 3511 | |
cdfaafa9 MB |
3512 | /* Ensure that if TO was absolute, so is the result. */ |
3513 | if (INTEGERP (to) && !INTEGERP (result)) | |
3514 | result = invalid; | |
2c20458f MB |
3515 | } |
3516 | ||
cdfaafa9 | 3517 | return result; |
2c20458f MB |
3518 | } |
3519 | ||
3520 | ||
3521 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3522 | store the resulting attributes in TO, which must be already be |
3523 | completely specified and contain only absolute attributes. Every | |
3524 | specified attribute of FROM overrides the corresponding attribute of | |
3525 | TO; relative attributes in FROM are merged with the absolute value in | |
a0a23346 MB |
3526 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect |
3527 | loops in face inheritance; it should be 0 when called from other | |
3528 | places. */ | |
82641697 GM |
3529 | |
3530 | static INLINE void | |
a0a23346 | 3531 | merge_face_vectors (f, from, to, named_merge_points) |
2c20458f | 3532 | struct frame *f; |
82641697 | 3533 | Lisp_Object *from, *to; |
a0a23346 | 3534 | struct named_merge_point *named_merge_points; |
82641697 GM |
3535 | { |
3536 | int i; | |
2c20458f MB |
3537 | |
3538 | /* If FROM inherits from some other faces, merge their attributes into | |
3539 | TO before merging FROM's direct attributes. Note that an :inherit | |
3540 | attribute of `unspecified' is the same as one of nil; we never | |
3541 | merge :inherit attributes, so nil is more correct, but lots of | |
3542 | other code uses `unspecified' as a generic value for face attributes. */ | |
3543 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3544 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 3545 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 3546 | |
87188200 MB |
3547 | /* If TO specifies a :font attribute, and FROM specifies some |
3548 | font-related attribute, we need to clear TO's :font attribute | |
3549 | (because it will be inconsistent with whatever FROM specifies, and | |
3550 | FROM takes precedence). */ | |
3551 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3552 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3553 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3554 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3555 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3556 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3557 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3558 | to[LFACE_FONT_INDEX] = Qnil; |
3559 | ||
82641697 GM |
3560 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3561 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3562 | { |
3563 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
e1e419ec | 3564 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
ab8469eb PJ |
3565 | else |
3566 | to[i] = from[i]; | |
3567 | } | |
2c20458f MB |
3568 | |
3569 | /* TO is always an absolute face, which should inherit from nothing. | |
3570 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3571 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3572 | } | |
3573 | ||
a0a23346 MB |
3574 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
3575 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
3576 | inheritance. Returns true if FACE_NAME is a valid face name and | |
3577 | merging succeeded. */ | |
87188200 | 3578 | |
a0a23346 MB |
3579 | static int |
3580 | merge_named_face (f, face_name, to, named_merge_points) | |
2c20458f | 3581 | struct frame *f; |
a0a23346 | 3582 | Lisp_Object face_name; |
2c20458f | 3583 | Lisp_Object *to; |
a0a23346 | 3584 | struct named_merge_point *named_merge_points; |
2c20458f | 3585 | { |
a0a23346 | 3586 | struct named_merge_point named_merge_point; |
2c20458f | 3587 | |
a0a23346 MB |
3588 | if (push_named_merge_point (&named_merge_point, |
3589 | face_name, &named_merge_points)) | |
2c20458f | 3590 | { |
e1e419ec | 3591 | struct gcpro gcpro1; |
a0a23346 MB |
3592 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
3593 | int ok = get_lface_attributes (f, face_name, from, 0); | |
2c20458f | 3594 | |
a0a23346 | 3595 | if (ok) |
e1e419ec RS |
3596 | { |
3597 | GCPRO1 (named_merge_point.face_name); | |
3598 | merge_face_vectors (f, from, to, named_merge_points); | |
3599 | UNGCPRO; | |
3600 | } | |
2c20458f | 3601 | |
a0a23346 | 3602 | return ok; |
2c20458f | 3603 | } |
a0a23346 MB |
3604 | else |
3605 | return 0; | |
82641697 GM |
3606 | } |
3607 | ||
3608 | ||
a0a23346 MB |
3609 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
3610 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
3611 | problems with FACE_REF cause an error message to be shown. Return | |
3612 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
3613 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
3614 | list structure; it may be 0 for most callers. | |
3615 | ||
3616 | FACE_REF may be a single face specification or a list of such | |
3617 | specifications. Each face specification can be: | |
82641697 GM |
3618 | |
3619 | 1. A symbol or string naming a Lisp face. | |
3620 | ||
3621 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3622 | KEYWORD is a face attribute name, and value is an appropriate value | |
3623 | for that attribute. | |
3624 | ||
3625 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3626 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3627 | for compatibility with 20.2. | |
3628 | ||
3629 | Face specifications earlier in lists take precedence over later | |
3630 | specifications. */ | |
178c5d9c | 3631 | |
a0a23346 MB |
3632 | static int |
3633 | merge_face_ref (f, face_ref, to, err_msgs, named_merge_points) | |
82641697 | 3634 | struct frame *f; |
a0a23346 | 3635 | Lisp_Object face_ref; |
82641697 | 3636 | Lisp_Object *to; |
a0a23346 MB |
3637 | int err_msgs; |
3638 | struct named_merge_point *named_merge_points; | |
82641697 | 3639 | { |
a0a23346 MB |
3640 | int ok = 1; /* Succeed without an error? */ |
3641 | ||
3642 | if (CONSP (face_ref)) | |
82641697 | 3643 | { |
a0a23346 | 3644 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 3645 | |
82641697 GM |
3646 | if (EQ (first, Qforeground_color) |
3647 | || EQ (first, Qbackground_color)) | |
3648 | { | |
3649 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3650 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 3651 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
3652 | Lisp_Object color = first; |
3653 | ||
3654 | if (STRINGP (color_name)) | |
3655 | { | |
3656 | if (EQ (color, Qforeground_color)) | |
3657 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3658 | else | |
3659 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3660 | } | |
3661 | else | |
a0a23346 MB |
3662 | { |
3663 | if (err_msgs) | |
3664 | add_to_log ("Invalid face color", color_name, Qnil); | |
3665 | ok = 0; | |
3666 | } | |
82641697 GM |
3667 | } |
3668 | else if (SYMBOLP (first) | |
d5db4077 | 3669 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3670 | { |
3671 | /* Assume this is the property list form. */ | |
a0a23346 | 3672 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 3673 | { |
a0a23346 MB |
3674 | Lisp_Object keyword = XCAR (face_ref); |
3675 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
3676 | int err = 0; | |
82641697 | 3677 | |
d9639b25 RS |
3678 | /* Specifying `unspecified' is a no-op. */ |
3679 | if (EQ (value, Qunspecified)) | |
3680 | ; | |
3681 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
3682 | { |
3683 | if (STRINGP (value)) | |
3684 | to[LFACE_FAMILY_INDEX] = value; | |
3685 | else | |
a0a23346 | 3686 | err = 1; |
82641697 GM |
3687 | } |
3688 | else if (EQ (keyword, QCheight)) | |
3689 | { | |
2c20458f | 3690 | Lisp_Object new_height = |
e1e419ec | 3691 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 3692 | |
a0a23346 | 3693 | if (! NILP (new_height)) |
2c20458f | 3694 | to[LFACE_HEIGHT_INDEX] = new_height; |
a0a23346 MB |
3695 | else |
3696 | err = 1; | |
82641697 GM |
3697 | } |
3698 | else if (EQ (keyword, QCweight)) | |
3699 | { | |
3700 | if (SYMBOLP (value) | |
3701 | && face_numeric_weight (value) >= 0) | |
3702 | to[LFACE_WEIGHT_INDEX] = value; | |
3703 | else | |
a0a23346 | 3704 | err = 1; |
82641697 GM |
3705 | } |
3706 | else if (EQ (keyword, QCslant)) | |
3707 | { | |
3708 | if (SYMBOLP (value) | |
3709 | && face_numeric_slant (value) >= 0) | |
3710 | to[LFACE_SLANT_INDEX] = value; | |
3711 | else | |
a0a23346 | 3712 | err = 1; |
82641697 GM |
3713 | } |
3714 | else if (EQ (keyword, QCunderline)) | |
3715 | { | |
3716 | if (EQ (value, Qt) | |
3717 | || NILP (value) | |
3718 | || STRINGP (value)) | |
3719 | to[LFACE_UNDERLINE_INDEX] = value; | |
3720 | else | |
a0a23346 | 3721 | err = 1; |
82641697 GM |
3722 | } |
3723 | else if (EQ (keyword, QCoverline)) | |
3724 | { | |
3725 | if (EQ (value, Qt) | |
3726 | || NILP (value) | |
3727 | || STRINGP (value)) | |
3728 | to[LFACE_OVERLINE_INDEX] = value; | |
3729 | else | |
a0a23346 | 3730 | err = 1; |
82641697 GM |
3731 | } |
3732 | else if (EQ (keyword, QCstrike_through)) | |
3733 | { | |
3734 | if (EQ (value, Qt) | |
3735 | || NILP (value) | |
3736 | || STRINGP (value)) | |
3737 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3738 | else | |
a0a23346 | 3739 | err = 1; |
82641697 GM |
3740 | } |
3741 | else if (EQ (keyword, QCbox)) | |
3742 | { | |
3743 | if (EQ (value, Qt)) | |
3744 | value = make_number (1); | |
3745 | if (INTEGERP (value) | |
3746 | || STRINGP (value) | |
3747 | || CONSP (value) | |
3748 | || NILP (value)) | |
3749 | to[LFACE_BOX_INDEX] = value; | |
3750 | else | |
a0a23346 | 3751 | err = 1; |
82641697 GM |
3752 | } |
3753 | else if (EQ (keyword, QCinverse_video) | |
3754 | || EQ (keyword, QCreverse_video)) | |
3755 | { | |
3756 | if (EQ (value, Qt) || NILP (value)) | |
3757 | to[LFACE_INVERSE_INDEX] = value; | |
3758 | else | |
a0a23346 | 3759 | err = 1; |
82641697 GM |
3760 | } |
3761 | else if (EQ (keyword, QCforeground)) | |
3762 | { | |
3763 | if (STRINGP (value)) | |
3764 | to[LFACE_FOREGROUND_INDEX] = value; | |
3765 | else | |
a0a23346 | 3766 | err = 1; |
82641697 GM |
3767 | } |
3768 | else if (EQ (keyword, QCbackground)) | |
3769 | { | |
3770 | if (STRINGP (value)) | |
3771 | to[LFACE_BACKGROUND_INDEX] = value; | |
3772 | else | |
a0a23346 | 3773 | err = 1; |
82641697 GM |
3774 | } |
3775 | else if (EQ (keyword, QCstipple)) | |
3776 | { | |
3777 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3778 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3779 | if (!NILP (pixmap_p)) |
3780 | to[LFACE_STIPPLE_INDEX] = value; | |
3781 | else | |
a0a23346 | 3782 | err = 1; |
82641697 GM |
3783 | #endif |
3784 | } | |
3785 | else if (EQ (keyword, QCwidth)) | |
3786 | { | |
3787 | if (SYMBOLP (value) | |
3788 | && face_numeric_swidth (value) >= 0) | |
3789 | to[LFACE_SWIDTH_INDEX] = value; | |
3790 | else | |
a0a23346 | 3791 | err = 1; |
82641697 | 3792 | } |
2c20458f MB |
3793 | else if (EQ (keyword, QCinherit)) |
3794 | { | |
a0a23346 MB |
3795 | /* This is not really very useful; it's just like a |
3796 | normal face reference. */ | |
3797 | if (! merge_face_ref (f, value, to, | |
3798 | err_msgs, named_merge_points)) | |
3799 | err = 1; | |
2c20458f | 3800 | } |
82641697 | 3801 | else |
a0a23346 MB |
3802 | err = 1; |
3803 | ||
3804 | if (err) | |
3805 | { | |
3806 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
3807 | ok = 0; | |
3808 | } | |
82641697 | 3809 | |
a0a23346 | 3810 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
3811 | } |
3812 | } | |
3813 | else | |
3814 | { | |
a0a23346 MB |
3815 | /* This is a list of face refs. Those at the beginning of the |
3816 | list take precedence over what follows, so we have to merge | |
3817 | from the end backwards. */ | |
3818 | Lisp_Object next = XCDR (face_ref); | |
3819 | ||
3820 | if (! NILP (next)) | |
3821 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
3822 | ||
3823 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
3824 | ok = 0; | |
82641697 GM |
3825 | } |
3826 | } | |
3827 | else | |
3828 | { | |
a0a23346 MB |
3829 | /* FACE_REF ought to be a face name. */ |
3830 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
3831 | if (!ok && err_msgs) | |
3832 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 3833 | } |
a0a23346 MB |
3834 | |
3835 | return ok; | |
82641697 GM |
3836 | } |
3837 | ||
3838 | ||
3839 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3840 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 3841 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
3842 | If FACE was not known as a face before, create a new one. |
3843 | If optional argument FRAME is specified, make a frame-local face | |
3844 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
3845 | Value is a vector of face attributes. */) |
3846 | (face, frame) | |
82641697 GM |
3847 | Lisp_Object face, frame; |
3848 | { | |
3849 | Lisp_Object global_lface, lface; | |
3850 | struct frame *f; | |
3851 | int i; | |
3852 | ||
b7826503 | 3853 | CHECK_SYMBOL (face); |
82641697 | 3854 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 3855 | |
82641697 GM |
3856 | if (!NILP (frame)) |
3857 | { | |
b7826503 | 3858 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3859 | f = XFRAME (frame); |
3860 | lface = lface_from_face_name (f, face, 0); | |
3861 | } | |
3862 | else | |
3863 | f = NULL, lface = Qnil; | |
3864 | ||
3865 | /* Add a global definition if there is none. */ | |
3866 | if (NILP (global_lface)) | |
3867 | { | |
3868 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3869 | Qunspecified); | |
a08332c0 | 3870 | AREF (global_lface, 0) = Qface; |
178c5d9c | 3871 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3872 | Vface_new_frame_defaults); |
178c5d9c | 3873 | |
82641697 GM |
3874 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3875 | face id to Lisp face is given by the vector lface_id_to_name. | |
3876 | The mapping from Lisp face to Lisp face id is given by the | |
3877 | property `face' of the Lisp face name. */ | |
3878 | if (next_lface_id == lface_id_to_name_size) | |
3879 | { | |
3880 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3881 | int sz = new_size * sizeof *lface_id_to_name; | |
3882 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3883 | lface_id_to_name_size = new_size; | |
3884 | } | |
178c5d9c | 3885 | |
82641697 GM |
3886 | lface_id_to_name[next_lface_id] = face; |
3887 | Fput (face, Qface, make_number (next_lface_id)); | |
3888 | ++next_lface_id; | |
3889 | } | |
3890 | else if (f == NULL) | |
3891 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3892 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 3893 | |
82641697 GM |
3894 | /* Add a frame-local definition. */ |
3895 | if (f) | |
3896 | { | |
3897 | if (NILP (lface)) | |
3898 | { | |
3899 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3900 | Qunspecified); | |
a08332c0 | 3901 | AREF (lface, 0) = Qface; |
82641697 GM |
3902 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
3903 | } | |
3904 | else | |
3905 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3906 | AREF (lface, i) = Qunspecified; |
82641697 GM |
3907 | } |
3908 | else | |
3909 | lface = global_lface; | |
3910 | ||
33565969 RS |
3911 | /* Changing a named face means that all realized faces depending on |
3912 | that face are invalid. Since we cannot tell which realized faces | |
3913 | depend on the face, make sure they are all removed. This is done | |
3914 | by incrementing face_change_count. The next call to | |
3915 | init_iterator will then free realized faces. */ | |
46b00436 KS |
3916 | if (NILP (Fget (face, Qface_no_inherit))) |
3917 | { | |
3918 | ++face_change_count; | |
3919 | ++windows_or_buffers_changed; | |
3920 | } | |
33565969 | 3921 | |
82641697 GM |
3922 | xassert (LFACEP (lface)); |
3923 | check_lface (lface); | |
3924 | return lface; | |
3925 | } | |
3926 | ||
3927 | ||
3928 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3929 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 3930 | doc: /* Return non-nil if FACE names a face. |
1d256714 | 3931 | If optional second argument FRAME is non-nil, check for the |
228299fa | 3932 | existence of a frame-local face with name FACE on that frame. |
7ee72033 MB |
3933 | Otherwise check for the existence of a global face. */) |
3934 | (face, frame) | |
82641697 GM |
3935 | Lisp_Object face, frame; |
3936 | { | |
3937 | Lisp_Object lface; | |
178c5d9c | 3938 | |
82641697 GM |
3939 | if (!NILP (frame)) |
3940 | { | |
b7826503 | 3941 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3942 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
3943 | } | |
3944 | else | |
3945 | lface = lface_from_face_name (NULL, face, 0); | |
3946 | ||
3947 | return lface; | |
3948 | } | |
3949 | ||
3950 | ||
3951 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3952 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 3953 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
3954 | If FRAME is t, copy the global face definition of FROM. |
3955 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
3956 | If NEW-FRAME is a frame, copy that data into the frame-local | |
3957 | definition of TO on NEW-FRAME. If NEW-FRAME is nil. | |
3958 | FRAME controls where the data is copied to. | |
228299fa | 3959 | |
5e9bab6f | 3960 | The value is TO. */) |
7ee72033 | 3961 | (from, to, frame, new_frame) |
82641697 GM |
3962 | Lisp_Object from, to, frame, new_frame; |
3963 | { | |
3964 | Lisp_Object lface, copy; | |
178c5d9c | 3965 | |
b7826503 PJ |
3966 | CHECK_SYMBOL (from); |
3967 | CHECK_SYMBOL (to); | |
82641697 GM |
3968 | |
3969 | if (EQ (frame, Qt)) | |
3970 | { | |
3971 | /* Copy global definition of FROM. We don't make copies of | |
3972 | strings etc. because 20.2 didn't do it either. */ | |
3973 | lface = lface_from_face_name (NULL, from, 1); | |
3974 | copy = Finternal_make_lisp_face (to, Qnil); | |
3975 | } | |
3976 | else | |
3977 | { | |
3978 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
3979 | if (NILP (new_frame)) |
3980 | new_frame = frame; | |
b7826503 PJ |
3981 | CHECK_LIVE_FRAME (frame); |
3982 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
3983 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
3984 | copy = Finternal_make_lisp_face (to, new_frame); | |
3985 | } | |
178c5d9c | 3986 | |
82641697 GM |
3987 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3988 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3989 | |
33565969 RS |
3990 | /* Changing a named face means that all realized faces depending on |
3991 | that face are invalid. Since we cannot tell which realized faces | |
3992 | depend on the face, make sure they are all removed. This is done | |
3993 | by incrementing face_change_count. The next call to | |
3994 | init_iterator will then free realized faces. */ | |
46b00436 KS |
3995 | if (NILP (Fget (to, Qface_no_inherit))) |
3996 | { | |
3997 | ++face_change_count; | |
3998 | ++windows_or_buffers_changed; | |
3999 | } | |
33565969 | 4000 | |
82641697 GM |
4001 | return to; |
4002 | } | |
4003 | ||
4004 | ||
4005 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
4006 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 4007 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
4008 | FRAME being a frame means change the face on that frame. |
4009 | FRAME nil means change the face of the selected frame. | |
4010 | FRAME t means change the default for new frames. | |
4011 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
4012 | for new frames. */) |
4013 | (face, attr, value, frame) | |
82641697 GM |
4014 | Lisp_Object face, attr, value, frame; |
4015 | { | |
4016 | Lisp_Object lface; | |
4017 | Lisp_Object old_value = Qnil; | |
39506348 KH |
4018 | /* Set 1 if ATTR is QCfont. */ |
4019 | int font_attr_p = 0; | |
4020 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 4021 | int font_related_attr_p = 0; |
178c5d9c | 4022 | |
b7826503 PJ |
4023 | CHECK_SYMBOL (face); |
4024 | CHECK_SYMBOL (attr); | |
82641697 | 4025 | |
d1bf13b3 | 4026 | face = resolve_face_name (face, 1); |
c7ae3284 | 4027 | |
628436fb GM |
4028 | /* If FRAME is 0, change face on all frames, and change the |
4029 | default for new frames. */ | |
4030 | if (INTEGERP (frame) && XINT (frame) == 0) | |
4031 | { | |
4032 | Lisp_Object tail; | |
d12d0a9b | 4033 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
4034 | FOR_EACH_FRAME (tail, frame) |
4035 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 4036 | return face; |
628436fb GM |
4037 | } |
4038 | ||
82641697 GM |
4039 | /* Set lface to the Lisp attribute vector of FACE. */ |
4040 | if (EQ (frame, Qt)) | |
0268cef3 CY |
4041 | { |
4042 | lface = lface_from_face_name (NULL, face, 1); | |
67d23e01 CY |
4043 | |
4044 | /* When updating face-new-frame-defaults, we put :ignore-defface | |
4045 | where the caller wants `unspecified'. This forces the frame | |
4046 | defaults to ignore the defface value. Otherwise, the defface | |
4047 | will take effect, which is generally not what is intended. | |
4048 | The value of that attribute will be inherited from some other | |
4049 | face during face merging. See internal_merge_in_global_face. */ | |
0268cef3 | 4050 | if (UNSPECIFIEDP (value)) |
67d23e01 | 4051 | value = Qignore_defface; |
0268cef3 | 4052 | } |
82641697 GM |
4053 | else |
4054 | { | |
4055 | if (NILP (frame)) | |
c0617987 | 4056 | frame = selected_frame; |
178c5d9c | 4057 | |
b7826503 | 4058 | CHECK_LIVE_FRAME (frame); |
82641697 | 4059 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 4060 | |
82641697 GM |
4061 | /* If a frame-local face doesn't exist yet, create one. */ |
4062 | if (NILP (lface)) | |
4063 | lface = Finternal_make_lisp_face (face, frame); | |
4064 | } | |
4065 | ||
4066 | if (EQ (attr, QCfamily)) | |
4067 | { | |
2ff10663 | 4068 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4069 | { |
b7826503 | 4070 | CHECK_STRING (value); |
d5db4077 | 4071 | if (SCHARS (value) == 0) |
82641697 GM |
4072 | signal_error ("Invalid face family", value); |
4073 | } | |
4074 | old_value = LFACE_FAMILY (lface); | |
4075 | LFACE_FAMILY (lface) = value; | |
4076 | font_related_attr_p = 1; | |
4077 | } | |
4078 | else if (EQ (attr, QCheight)) | |
4079 | { | |
2ff10663 | 4080 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4081 | { |
d8055bfc | 4082 | Lisp_Object test; |
2c20458f | 4083 | |
d8055bfc GM |
4084 | test = (EQ (face, Qdefault) |
4085 | ? value | |
4086 | /* The default face must have an absolute size, | |
4087 | otherwise, we do a test merge with a random | |
4088 | height to see if VALUE's ok. */ | |
e1e419ec | 4089 | : merge_face_heights (value, make_number (10), Qnil)); |
d8055bfc GM |
4090 | |
4091 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
4092 | signal_error ("Invalid face height", value); |
4093 | } | |
2c20458f | 4094 | |
82641697 GM |
4095 | old_value = LFACE_HEIGHT (lface); |
4096 | LFACE_HEIGHT (lface) = value; | |
4097 | font_related_attr_p = 1; | |
4098 | } | |
4099 | else if (EQ (attr, QCweight)) | |
4100 | { | |
2ff10663 | 4101 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4102 | { |
b7826503 | 4103 | CHECK_SYMBOL (value); |
82641697 GM |
4104 | if (face_numeric_weight (value) < 0) |
4105 | signal_error ("Invalid face weight", value); | |
4106 | } | |
4107 | old_value = LFACE_WEIGHT (lface); | |
4108 | LFACE_WEIGHT (lface) = value; | |
4109 | font_related_attr_p = 1; | |
4110 | } | |
4111 | else if (EQ (attr, QCslant)) | |
4112 | { | |
2ff10663 | 4113 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4114 | { |
b7826503 | 4115 | CHECK_SYMBOL (value); |
82641697 GM |
4116 | if (face_numeric_slant (value) < 0) |
4117 | signal_error ("Invalid face slant", value); | |
4118 | } | |
4119 | old_value = LFACE_SLANT (lface); | |
4120 | LFACE_SLANT (lface) = value; | |
4121 | font_related_attr_p = 1; | |
4122 | } | |
4123 | else if (EQ (attr, QCunderline)) | |
4124 | { | |
2ff10663 | 4125 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4126 | if ((SYMBOLP (value) |
4127 | && !EQ (value, Qt) | |
4128 | && !EQ (value, Qnil)) | |
4129 | /* Underline color. */ | |
4130 | || (STRINGP (value) | |
d5db4077 | 4131 | && SCHARS (value) == 0)) |
82641697 | 4132 | signal_error ("Invalid face underline", value); |
178c5d9c | 4133 | |
82641697 GM |
4134 | old_value = LFACE_UNDERLINE (lface); |
4135 | LFACE_UNDERLINE (lface) = value; | |
4136 | } | |
4137 | else if (EQ (attr, QCoverline)) | |
4138 | { | |
2ff10663 | 4139 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4140 | if ((SYMBOLP (value) |
4141 | && !EQ (value, Qt) | |
4142 | && !EQ (value, Qnil)) | |
4143 | /* Overline color. */ | |
4144 | || (STRINGP (value) | |
d5db4077 | 4145 | && SCHARS (value) == 0)) |
82641697 | 4146 | signal_error ("Invalid face overline", value); |
178c5d9c | 4147 | |
82641697 GM |
4148 | old_value = LFACE_OVERLINE (lface); |
4149 | LFACE_OVERLINE (lface) = value; | |
4150 | } | |
4151 | else if (EQ (attr, QCstrike_through)) | |
4152 | { | |
2ff10663 | 4153 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4154 | if ((SYMBOLP (value) |
4155 | && !EQ (value, Qt) | |
4156 | && !EQ (value, Qnil)) | |
4157 | /* Strike-through color. */ | |
4158 | || (STRINGP (value) | |
d5db4077 | 4159 | && SCHARS (value) == 0)) |
82641697 | 4160 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 4161 | |
82641697 GM |
4162 | old_value = LFACE_STRIKE_THROUGH (lface); |
4163 | LFACE_STRIKE_THROUGH (lface) = value; | |
4164 | } | |
4165 | else if (EQ (attr, QCbox)) | |
4166 | { | |
4167 | int valid_p; | |
178c5d9c | 4168 | |
82641697 GM |
4169 | /* Allow t meaning a simple box of width 1 in foreground color |
4170 | of the face. */ | |
4171 | if (EQ (value, Qt)) | |
4172 | value = make_number (1); | |
4173 | ||
2ff10663 | 4174 | if (UNSPECIFIEDP (value) || IGNORE_DEFFACE_P (value)) |
82641697 GM |
4175 | valid_p = 1; |
4176 | else if (NILP (value)) | |
4177 | valid_p = 1; | |
4178 | else if (INTEGERP (value)) | |
89624b8b | 4179 | valid_p = XINT (value) != 0; |
82641697 | 4180 | else if (STRINGP (value)) |
d5db4077 | 4181 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4182 | else if (CONSP (value)) |
4183 | { | |
4184 | Lisp_Object tem; | |
178c5d9c | 4185 | |
82641697 GM |
4186 | tem = value; |
4187 | while (CONSP (tem)) | |
4188 | { | |
4189 | Lisp_Object k, v; | |
4190 | ||
4191 | k = XCAR (tem); | |
4192 | tem = XCDR (tem); | |
4193 | if (!CONSP (tem)) | |
4194 | break; | |
4195 | v = XCAR (tem); | |
4196 | tem = XCDR (tem); | |
178c5d9c | 4197 | |
82641697 GM |
4198 | if (EQ (k, QCline_width)) |
4199 | { | |
89624b8b | 4200 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4201 | break; |
4202 | } | |
4203 | else if (EQ (k, QCcolor)) | |
4204 | { | |
91c212f1 | 4205 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
4206 | break; |
4207 | } | |
4208 | else if (EQ (k, QCstyle)) | |
4209 | { | |
4210 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4211 | break; | |
4212 | } | |
4213 | else | |
4214 | break; | |
4215 | } | |
4216 | ||
4217 | valid_p = NILP (tem); | |
4218 | } | |
4219 | else | |
4220 | valid_p = 0; | |
4221 | ||
4222 | if (!valid_p) | |
4223 | signal_error ("Invalid face box", value); | |
178c5d9c | 4224 | |
82641697 GM |
4225 | old_value = LFACE_BOX (lface); |
4226 | LFACE_BOX (lface) = value; | |
4227 | } | |
4228 | else if (EQ (attr, QCinverse_video) | |
4229 | || EQ (attr, QCreverse_video)) | |
4230 | { | |
2ff10663 | 4231 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4232 | { |
b7826503 | 4233 | CHECK_SYMBOL (value); |
82641697 GM |
4234 | if (!EQ (value, Qt) && !NILP (value)) |
4235 | signal_error ("Invalid inverse-video face attribute value", value); | |
4236 | } | |
4237 | old_value = LFACE_INVERSE (lface); | |
4238 | LFACE_INVERSE (lface) = value; | |
4239 | } | |
4240 | else if (EQ (attr, QCforeground)) | |
4241 | { | |
2ff10663 | 4242 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4243 | { |
4244 | /* Don't check for valid color names here because it depends | |
4245 | on the frame (display) whether the color will be valid | |
4246 | when the face is realized. */ | |
b7826503 | 4247 | CHECK_STRING (value); |
d5db4077 | 4248 | if (SCHARS (value) == 0) |
82641697 GM |
4249 | signal_error ("Empty foreground color value", value); |
4250 | } | |
4251 | old_value = LFACE_FOREGROUND (lface); | |
4252 | LFACE_FOREGROUND (lface) = value; | |
4253 | } | |
4254 | else if (EQ (attr, QCbackground)) | |
4255 | { | |
2ff10663 | 4256 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 GM |
4257 | { |
4258 | /* Don't check for valid color names here because it depends | |
4259 | on the frame (display) whether the color will be valid | |
4260 | when the face is realized. */ | |
b7826503 | 4261 | CHECK_STRING (value); |
d5db4077 | 4262 | if (SCHARS (value) == 0) |
82641697 GM |
4263 | signal_error ("Empty background color value", value); |
4264 | } | |
4265 | old_value = LFACE_BACKGROUND (lface); | |
4266 | LFACE_BACKGROUND (lface) = value; | |
4267 | } | |
4268 | else if (EQ (attr, QCstipple)) | |
4269 | { | |
4270 | #ifdef HAVE_X_WINDOWS | |
2ff10663 | 4271 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4272 | && !NILP (value) |
fef04523 | 4273 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4274 | signal_error ("Invalid stipple attribute", value); |
4275 | old_value = LFACE_STIPPLE (lface); | |
4276 | LFACE_STIPPLE (lface) = value; | |
4277 | #endif /* HAVE_X_WINDOWS */ | |
4278 | } | |
4279 | else if (EQ (attr, QCwidth)) | |
4280 | { | |
2ff10663 | 4281 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
82641697 | 4282 | { |
b7826503 | 4283 | CHECK_SYMBOL (value); |
82641697 GM |
4284 | if (face_numeric_swidth (value) < 0) |
4285 | signal_error ("Invalid face width", value); | |
4286 | } | |
4287 | old_value = LFACE_SWIDTH (lface); | |
4288 | LFACE_SWIDTH (lface) = value; | |
4289 | font_related_attr_p = 1; | |
4290 | } | |
4291 | else if (EQ (attr, QCfont)) | |
4292 | { | |
c3cee013 | 4293 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4294 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4295 | { |
4296 | /* Set font-related attributes of the Lisp face from an XLFD | |
4297 | font name. */ | |
4298 | struct frame *f; | |
4299 | Lisp_Object tmp; | |
82641697 | 4300 | |
96fbd2c6 EZ |
4301 | if (EQ (frame, Qt)) |
4302 | f = SELECTED_FRAME (); | |
4303 | else | |
4304 | f = check_x_frame (frame); | |
178c5d9c | 4305 | |
2ff10663 | 4306 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
e67f5ccc RS |
4307 | { |
4308 | CHECK_STRING (value); | |
39506348 | 4309 | |
e67f5ccc RS |
4310 | /* VALUE may be a fontset name or an alias of fontset. In |
4311 | such a case, use the base fontset name. */ | |
4312 | tmp = Fquery_fontset (value, Qnil); | |
4313 | if (!NILP (tmp)) | |
4314 | value = tmp; | |
4315 | ||
4316 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
4317 | signal_error ("Invalid font or fontset name", value); | |
4318 | } | |
39506348 | 4319 | |
96fbd2c6 EZ |
4320 | font_attr_p = 1; |
4321 | } | |
c3cee013 | 4322 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4323 | } |
2c20458f MB |
4324 | else if (EQ (attr, QCinherit)) |
4325 | { | |
4326 | Lisp_Object tail; | |
4327 | if (SYMBOLP (value)) | |
4328 | tail = Qnil; | |
4329 | else | |
4330 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4331 | if (!SYMBOLP (XCAR (tail))) | |
4332 | break; | |
4333 | if (NILP (tail)) | |
4334 | LFACE_INHERIT (lface) = value; | |
4335 | else | |
6288c62f | 4336 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4337 | } |
82641697 GM |
4338 | else if (EQ (attr, QCbold)) |
4339 | { | |
4340 | old_value = LFACE_WEIGHT (lface); | |
4341 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4342 | font_related_attr_p = 1; | |
4343 | } | |
4344 | else if (EQ (attr, QCitalic)) | |
4345 | { | |
4346 | old_value = LFACE_SLANT (lface); | |
4347 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4348 | font_related_attr_p = 1; | |
4349 | } | |
4350 | else | |
4351 | signal_error ("Invalid face attribute name", attr); | |
4352 | ||
39506348 | 4353 | if (font_related_attr_p |
2ff10663 | 4354 | && !UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value)) |
39506348 KH |
4355 | /* If a font-related attribute other than QCfont is specified, the |
4356 | original `font' attribute nor that of default face is useless | |
4357 | to determine a new font. Thus, we set it to nil so that font | |
4358 | selection mechanism doesn't use it. */ | |
4359 | LFACE_FONT (lface) = Qnil; | |
4360 | ||
82641697 GM |
4361 | /* Changing a named face means that all realized faces depending on |
4362 | that face are invalid. Since we cannot tell which realized faces | |
4363 | depend on the face, make sure they are all removed. This is done | |
4364 | by incrementing face_change_count. The next call to | |
4365 | init_iterator will then free realized faces. */ | |
4366 | if (!EQ (frame, Qt) | |
46b00436 | 4367 | && NILP (Fget (face, Qface_no_inherit)) |
82641697 GM |
4368 | && (EQ (attr, QCfont) |
4369 | || NILP (Fequal (old_value, value)))) | |
4370 | { | |
4371 | ++face_change_count; | |
4372 | ++windows_or_buffers_changed; | |
4373 | } | |
4374 | ||
2ff10663 | 4375 | if (!UNSPECIFIEDP (value) && !IGNORE_DEFFACE_P (value) |
82641697 | 4376 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4377 | { |
4378 | Lisp_Object param; | |
4379 | ||
4380 | param = Qnil; | |
178c5d9c | 4381 | |
8bd201d6 GM |
4382 | if (EQ (face, Qdefault)) |
4383 | { | |
b9c769f8 | 4384 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4385 | /* Changed font-related attributes of the `default' face are |
4386 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4387 | if (FRAMEP (frame) |
4388 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4389 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4390 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4391 | else |
4392 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4393 | ||
4394 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4395 | param = Qforeground_color; |
4396 | else if (EQ (attr, QCbackground)) | |
4397 | param = Qbackground_color; | |
4398 | } | |
b9c769f8 | 4399 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4400 | #ifndef WINDOWSNT |
8bd201d6 GM |
4401 | else if (EQ (face, Qscroll_bar)) |
4402 | { | |
4403 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4404 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4405 | if (EQ (attr, QCforeground)) | |
4406 | param = Qscroll_bar_foreground; | |
4407 | else if (EQ (attr, QCbackground)) | |
4408 | param = Qscroll_bar_background; | |
4409 | } | |
d12d0a9b | 4410 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4411 | else if (EQ (face, Qborder)) |
4412 | { | |
4413 | /* Changing background color of `border' sets frame parameter | |
4414 | `border-color'. */ | |
4415 | if (EQ (attr, QCbackground)) | |
4416 | param = Qborder_color; | |
4417 | } | |
4418 | else if (EQ (face, Qcursor)) | |
4419 | { | |
4420 | /* Changing background color of `cursor' sets frame parameter | |
4421 | `cursor-color'. */ | |
4422 | if (EQ (attr, QCbackground)) | |
4423 | param = Qcursor_color; | |
4424 | } | |
4425 | else if (EQ (face, Qmouse)) | |
4426 | { | |
4427 | /* Changing background color of `mouse' sets frame parameter | |
4428 | `mouse-color'. */ | |
4429 | if (EQ (attr, QCbackground)) | |
4430 | param = Qmouse_color; | |
4431 | } | |
b9c769f8 | 4432 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4433 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4434 | { |
4435 | /* Indicate that we have to update the menu bar when | |
4436 | realizing faces on FRAME. FRAME t change the | |
4437 | default for new frames. We do this by setting | |
4438 | setting the flag in new face caches */ | |
4439 | if (FRAMEP (frame)) | |
4440 | { | |
4441 | struct frame *f = XFRAME (frame); | |
4442 | if (FRAME_FACE_CACHE (f) == NULL) | |
4443 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4444 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4445 | } | |
4446 | else | |
4447 | menu_face_changed_default = 1; | |
4448 | } | |
8bd201d6 | 4449 | |
39506348 | 4450 | if (!NILP (param)) |
ab8469eb PJ |
4451 | { |
4452 | if (EQ (frame, Qt)) | |
4453 | /* Update `default-frame-alist', which is used for new frames. */ | |
4454 | { | |
4455 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4456 | } | |
4457 | else | |
4458 | /* Update the current frame's parameters. */ | |
4459 | { | |
4460 | Lisp_Object cons; | |
4461 | cons = XCAR (Vparam_value_alist); | |
4462 | XSETCAR (cons, param); | |
4463 | XSETCDR (cons, value); | |
4464 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4465 | } | |
4466 | } | |
8bd201d6 | 4467 | } |
82641697 | 4468 | |
82641697 GM |
4469 | return face; |
4470 | } | |
4471 | ||
4472 | ||
c3cee013 | 4473 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4474 | |
39506348 KH |
4475 | /* Set the `font' frame parameter of FRAME determined from `default' |
4476 | face attributes LFACE. If a face or fontset name is explicitely | |
4477 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4478 | from the other font-related atrributes of LFACE. In that case, if | |
4479 | there's no matching font, signals an error. */ | |
82641697 GM |
4480 | |
4481 | static void | |
4482 | set_font_frame_param (frame, lface) | |
4483 | Lisp_Object frame, lface; | |
4484 | { | |
4485 | struct frame *f = XFRAME (frame); | |
82641697 | 4486 | |
482cca61 | 4487 | if (FRAME_WINDOW_P (f)) |
82641697 | 4488 | { |
482cca61 GM |
4489 | Lisp_Object font_name; |
4490 | char *font; | |
177c0ea7 | 4491 | |
482cca61 GM |
4492 | if (STRINGP (LFACE_FONT (lface))) |
4493 | font_name = LFACE_FONT (lface); | |
4494 | else | |
4495 | { | |
4496 | /* Choose a font name that reflects LFACE's attributes and has | |
4497 | the registry and encoding pattern specified in the default | |
4498 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
6ae2cd57 | 4499 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0, 0); |
482cca61 GM |
4500 | if (!font) |
4501 | error ("No font matches the specified attribute"); | |
4502 | font_name = build_string (font); | |
4503 | xfree (font); | |
4504 | } | |
177c0ea7 | 4505 | |
a5f696ac | 4506 | f->default_face_done_p = 0; |
482cca61 GM |
4507 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4508 | } | |
82641697 GM |
4509 | } |
4510 | ||
4511 | ||
8bd201d6 GM |
4512 | /* Update the corresponding face when frame parameter PARAM on frame F |
4513 | has been assigned the value NEW_VALUE. */ | |
4514 | ||
4515 | void | |
4516 | update_face_from_frame_parameter (f, param, new_value) | |
4517 | struct frame *f; | |
4518 | Lisp_Object param, new_value; | |
4519 | { | |
46b00436 | 4520 | Lisp_Object face = Qnil; |
8bd201d6 GM |
4521 | Lisp_Object lface; |
4522 | ||
4523 | /* If there are no faces yet, give up. This is the case when called | |
4524 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4525 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4526 | if (NILP (f->face_alist)) |
4527 | return; | |
178c5d9c | 4528 | |
8bd201d6 GM |
4529 | if (EQ (param, Qforeground_color)) |
4530 | { | |
46b00436 KS |
4531 | face = Qdefault; |
4532 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4533 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
4534 | ? new_value : Qunspecified); | |
4535 | realize_basic_faces (f); | |
4536 | } | |
4537 | else if (EQ (param, Qbackground_color)) | |
4538 | { | |
92610620 GM |
4539 | Lisp_Object frame; |
4540 | ||
4541 | /* Changing the background color might change the background | |
c20577bc JL |
4542 | mode, so that we have to load new defface specs. |
4543 | Call frame-set-background-mode to do that. */ | |
92610620 | 4544 | XSETFRAME (frame, f); |
c20577bc | 4545 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 4546 | |
46b00436 KS |
4547 | face = Qdefault; |
4548 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4549 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4550 | ? new_value : Qunspecified); | |
4551 | realize_basic_faces (f); | |
4552 | } | |
46b00436 | 4553 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 4554 | { |
46b00436 KS |
4555 | face = Qborder; |
4556 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4557 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4558 | ? new_value : Qunspecified); | |
4559 | } | |
4560 | else if (EQ (param, Qcursor_color)) | |
4561 | { | |
46b00436 KS |
4562 | face = Qcursor; |
4563 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4564 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4565 | ? new_value : Qunspecified); | |
4566 | } | |
4567 | else if (EQ (param, Qmouse_color)) | |
4568 | { | |
46b00436 KS |
4569 | face = Qmouse; |
4570 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4571 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4572 | ? new_value : Qunspecified); | |
4573 | } | |
46b00436 KS |
4574 | |
4575 | /* Changing a named face means that all realized faces depending on | |
4576 | that face are invalid. Since we cannot tell which realized faces | |
4577 | depend on the face, make sure they are all removed. This is done | |
4578 | by incrementing face_change_count. The next call to | |
4579 | init_iterator will then free realized faces. */ | |
4580 | if (!NILP (face) | |
4581 | && NILP (Fget (face, Qface_no_inherit))) | |
4582 | { | |
4583 | ++face_change_count; | |
4584 | ++windows_or_buffers_changed; | |
4585 | } | |
8bd201d6 GM |
4586 | } |
4587 | ||
4588 | ||
82641697 GM |
4589 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4590 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4591 | doesn't take a frame argument. */ | |
4592 | ||
4593 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4594 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4595 | (resource, class, frame) | |
82641697 GM |
4596 | Lisp_Object resource, class, frame; |
4597 | { | |
c3cee013 | 4598 | Lisp_Object value = Qnil; |
b7826503 PJ |
4599 | CHECK_STRING (resource); |
4600 | CHECK_STRING (class); | |
4601 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4602 | BLOCK_INPUT; |
4603 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4604 | resource, class, Qnil, Qnil); | |
4605 | UNBLOCK_INPUT; | |
4606 | return value; | |
4607 | } | |
4608 | ||
4609 | ||
4610 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4611 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4612 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4613 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4614 | |
82641697 GM |
4615 | static Lisp_Object |
4616 | face_boolean_x_resource_value (value, signal_p) | |
4617 | Lisp_Object value; | |
4618 | int signal_p; | |
4619 | { | |
4620 | Lisp_Object result = make_number (0); | |
4621 | ||
4622 | xassert (STRINGP (value)); | |
178c5d9c | 4623 | |
d5db4077 KR |
4624 | if (xstricmp (SDATA (value), "on") == 0 |
4625 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4626 | result = Qt; |
d5db4077 KR |
4627 | else if (xstricmp (SDATA (value), "off") == 0 |
4628 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4629 | result = Qnil; |
d5db4077 | 4630 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4631 | result = Qunspecified; |
4632 | else if (signal_p) | |
4633 | signal_error ("Invalid face attribute value from X resource", value); | |
4634 | ||
4635 | return result; | |
4636 | } | |
4637 | ||
4638 | ||
4639 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4640 | Finternal_set_lisp_face_attribute_from_resource, | |
4641 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4642 | 3, 4, 0, doc: /* */) |
4643 | (face, attr, value, frame) | |
82641697 GM |
4644 | Lisp_Object face, attr, value, frame; |
4645 | { | |
b7826503 PJ |
4646 | CHECK_SYMBOL (face); |
4647 | CHECK_SYMBOL (attr); | |
4648 | CHECK_STRING (value); | |
82641697 | 4649 | |
d5db4077 | 4650 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4651 | value = Qunspecified; |
4652 | else if (EQ (attr, QCheight)) | |
4653 | { | |
4654 | value = Fstring_to_number (value, make_number (10)); | |
4655 | if (XINT (value) <= 0) | |
4656 | signal_error ("Invalid face height from X resource", value); | |
4657 | } | |
4658 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4659 | value = face_boolean_x_resource_value (value, 1); | |
4660 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4661 | value = intern (SDATA (value)); |
82641697 GM |
4662 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4663 | value = face_boolean_x_resource_value (value, 1); | |
4664 | else if (EQ (attr, QCunderline) | |
4665 | || EQ (attr, QCoverline) | |
27188d11 | 4666 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4667 | { |
4668 | Lisp_Object boolean_value; | |
4669 | ||
4670 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4671 | VALUE does NOT specify a color. */ | |
4672 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4673 | if (SYMBOLP (boolean_value)) | |
4674 | value = boolean_value; | |
4675 | } | |
0ad040ff | 4676 | else if (EQ (attr, QCbox) || EQ (attr, QCinherit)) |
27188d11 | 4677 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); |
82641697 GM |
4678 | |
4679 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4680 | } | |
4681 | ||
c3cee013 | 4682 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4683 | |
c7ae3284 GM |
4684 | \f |
4685 | /*********************************************************************** | |
4686 | Menu face | |
4687 | ***********************************************************************/ | |
4688 | ||
bce72079 | 4689 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4690 | |
bce72079 GM |
4691 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4692 | ||
4693 | static void | |
4694 | x_update_menu_appearance (f) | |
c7ae3284 | 4695 | struct frame *f; |
c7ae3284 | 4696 | { |
a03ad468 | 4697 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4698 | XrmDatabase rdb; |
178c5d9c | 4699 | |
bce72079 GM |
4700 | if (dpyinfo |
4701 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4702 | rdb != NULL)) | |
c7ae3284 | 4703 | { |
bce72079 GM |
4704 | char line[512]; |
4705 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4706 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 4707 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 4708 | int changed_p = 0; |
8ad582ac GM |
4709 | #ifdef USE_MOTIF |
4710 | const char *popup_path = "popup_menu"; | |
4711 | #else | |
4712 | const char *popup_path = "menu.popup"; | |
4713 | #endif | |
177c0ea7 | 4714 | |
bce72079 GM |
4715 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4716 | { | |
8ad582ac GM |
4717 | sprintf (line, "%s.%s*foreground: %s", |
4718 | myname, popup_path, | |
d5db4077 | 4719 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4720 | XrmPutLineResource (&rdb, line); |
4721 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 4722 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4723 | XrmPutLineResource (&rdb, line); |
4724 | changed_p = 1; | |
4725 | } | |
178c5d9c | 4726 | |
bce72079 GM |
4727 | if (STRINGP (LFACE_BACKGROUND (lface))) |
4728 | { | |
8ad582ac GM |
4729 | sprintf (line, "%s.%s*background: %s", |
4730 | myname, popup_path, | |
d5db4077 | 4731 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4732 | XrmPutLineResource (&rdb, line); |
4733 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 4734 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4735 | XrmPutLineResource (&rdb, line); |
4736 | changed_p = 1; | |
4737 | } | |
177c0ea7 | 4738 | |
bce72079 GM |
4739 | if (face->font_name |
4740 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4741 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4742 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
4743 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4744 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4745 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4746 | { | |
a03ad468 | 4747 | #ifdef USE_MOTIF |
bce72079 | 4748 | const char *suffix = "List"; |
211f2210 | 4749 | Bool motif = True; |
a2d7e722 JD |
4750 | #else |
4751 | #if defined HAVE_X_I18N | |
4752 | ||
4753 | const char *suffix = "Set"; | |
a03ad468 | 4754 | #else |
bce72079 | 4755 | const char *suffix = ""; |
a2d7e722 | 4756 | #endif |
211f2210 | 4757 | Bool motif = False; |
2defe37f | 4758 | #endif |
211f2210 | 4759 | #if defined HAVE_X_I18N |
2defe37f SM |
4760 | extern char *xic_create_fontsetname |
4761 | P_ ((char *base_fontname, Bool motif)); | |
211f2210 | 4762 | char *fontsetname = xic_create_fontsetname (face->font_name, motif); |
2defe37f SM |
4763 | #else |
4764 | char *fontsetname = face->font_name; | |
bce72079 GM |
4765 | #endif |
4766 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
2defe37f | 4767 | myname, suffix, fontsetname); |
bce72079 | 4768 | XrmPutLineResource (&rdb, line); |
2eddf899 | 4769 | sprintf (line, "%s.%s*font%s: %s", |
2defe37f | 4770 | myname, popup_path, suffix, fontsetname); |
bce72079 GM |
4771 | XrmPutLineResource (&rdb, line); |
4772 | changed_p = 1; | |
211f2210 SM |
4773 | if (fontsetname != face->font_name) |
4774 | xfree (fontsetname); | |
bce72079 | 4775 | } |
c7ae3284 | 4776 | |
bce72079 | 4777 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 4778 | free_frame_menubar (f); |
c7ae3284 GM |
4779 | } |
4780 | } | |
4781 | ||
bce72079 | 4782 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
4783 | |
4784 | ||
177c0ea7 | 4785 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
4786 | Sface_attribute_relative_p, |
4787 | 2, 2, 0, | |
2d6228e7 RS |
4788 | doc: /* Check whether a face attribute value is relative. |
4789 | Specifically, this function returns t if the attribute ATTRIBUTE | |
4790 | with the value VALUE is relative. | |
4791 | ||
4792 | A relative value is one that doesn't entirely override whatever is | |
4793 | inherited from another face. For most possible attributes, | |
4794 | the only relative value that users see is `unspecified'. | |
4795 | However, for :height, floating point values are also relative. */) | |
cdfaafa9 | 4796 | (attribute, value) |
d0930289 | 4797 | Lisp_Object attribute, value; |
cdfaafa9 | 4798 | { |
05338727 | 4799 | if (EQ (value, Qunspecified) || (EQ (value, Qignore_defface))) |
cdfaafa9 MB |
4800 | return Qt; |
4801 | else if (EQ (attribute, QCheight)) | |
4802 | return INTEGERP (value) ? Qnil : Qt; | |
4803 | else | |
4804 | return Qnil; | |
4805 | } | |
4806 | ||
4807 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
4808 | 3, 3, 0, | |
4809 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
4810 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
4811 | the result will be absolute, otherwise it will be relative. */) | |
4812 | (attribute, value1, value2) | |
4813 | Lisp_Object attribute, value1, value2; | |
4814 | { | |
05338727 | 4815 | if (EQ (value1, Qunspecified) || EQ (value1, Qignore_defface)) |
cdfaafa9 MB |
4816 | return value2; |
4817 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 4818 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
4819 | else |
4820 | return value1; | |
4821 | } | |
4822 | ||
82641697 GM |
4823 | |
4824 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4825 | Sinternal_get_lisp_face_attribute, | |
4826 | 2, 3, 0, | |
7ee72033 | 4827 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
4828 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
4829 | face attribute name, signal an error. | |
7fc92635 JB |
4830 | If the optional argument FRAME is given, report on face SYMBOL in that |
4831 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 MB |
4832 | frames). If FRAME is omitted or nil, use the selected frame. */) |
4833 | (symbol, keyword, frame) | |
82641697 GM |
4834 | Lisp_Object symbol, keyword, frame; |
4835 | { | |
4836 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4837 | |
b7826503 PJ |
4838 | CHECK_SYMBOL (symbol); |
4839 | CHECK_SYMBOL (keyword); | |
82641697 GM |
4840 | |
4841 | if (EQ (frame, Qt)) | |
4842 | lface = lface_from_face_name (NULL, symbol, 1); | |
4843 | else | |
4844 | { | |
4845 | if (NILP (frame)) | |
c0617987 | 4846 | frame = selected_frame; |
b7826503 | 4847 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4848 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
4849 | } | |
4850 | ||
4851 | if (EQ (keyword, QCfamily)) | |
4852 | value = LFACE_FAMILY (lface); | |
4853 | else if (EQ (keyword, QCheight)) | |
4854 | value = LFACE_HEIGHT (lface); | |
4855 | else if (EQ (keyword, QCweight)) | |
4856 | value = LFACE_WEIGHT (lface); | |
4857 | else if (EQ (keyword, QCslant)) | |
4858 | value = LFACE_SLANT (lface); | |
4859 | else if (EQ (keyword, QCunderline)) | |
4860 | value = LFACE_UNDERLINE (lface); | |
4861 | else if (EQ (keyword, QCoverline)) | |
4862 | value = LFACE_OVERLINE (lface); | |
4863 | else if (EQ (keyword, QCstrike_through)) | |
4864 | value = LFACE_STRIKE_THROUGH (lface); | |
4865 | else if (EQ (keyword, QCbox)) | |
4866 | value = LFACE_BOX (lface); | |
4867 | else if (EQ (keyword, QCinverse_video) | |
4868 | || EQ (keyword, QCreverse_video)) | |
4869 | value = LFACE_INVERSE (lface); | |
4870 | else if (EQ (keyword, QCforeground)) | |
4871 | value = LFACE_FOREGROUND (lface); | |
4872 | else if (EQ (keyword, QCbackground)) | |
4873 | value = LFACE_BACKGROUND (lface); | |
4874 | else if (EQ (keyword, QCstipple)) | |
4875 | value = LFACE_STIPPLE (lface); | |
4876 | else if (EQ (keyword, QCwidth)) | |
4877 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4878 | else if (EQ (keyword, QCinherit)) |
4879 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4880 | else if (EQ (keyword, QCfont)) |
4881 | value = LFACE_FONT (lface); | |
82641697 GM |
4882 | else |
4883 | signal_error ("Invalid face attribute name", keyword); | |
4884 | ||
0268cef3 CY |
4885 | if (IGNORE_DEFFACE_P (value)) |
4886 | return Qunspecified; | |
4887 | ||
82641697 GM |
4888 | return value; |
4889 | } | |
4890 | ||
4891 | ||
4892 | DEFUN ("internal-lisp-face-attribute-values", | |
4893 | Finternal_lisp_face_attribute_values, | |
4894 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
4895 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
4896 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
4897 | (attr) | |
82641697 GM |
4898 | Lisp_Object attr; |
4899 | { | |
4900 | Lisp_Object result = Qnil; | |
178c5d9c | 4901 | |
b7826503 | 4902 | CHECK_SYMBOL (attr); |
178c5d9c | 4903 | |
82641697 GM |
4904 | if (EQ (attr, QCweight) |
4905 | || EQ (attr, QCslant) | |
4906 | || EQ (attr, QCwidth)) | |
4907 | { | |
4908 | /* Extract permissible symbols from tables. */ | |
4909 | struct table_entry *table; | |
4910 | int i, dim; | |
178c5d9c | 4911 | |
82641697 GM |
4912 | if (EQ (attr, QCweight)) |
4913 | table = weight_table, dim = DIM (weight_table); | |
4914 | else if (EQ (attr, QCslant)) | |
4915 | table = slant_table, dim = DIM (slant_table); | |
4916 | else | |
4917 | table = swidth_table, dim = DIM (swidth_table); | |
4918 | ||
4919 | for (i = 0; i < dim; ++i) | |
4920 | { | |
4921 | Lisp_Object symbol = *table[i].symbol; | |
4922 | Lisp_Object tail = result; | |
4923 | ||
4924 | while (!NILP (tail) | |
4925 | && !EQ (XCAR (tail), symbol)) | |
4926 | tail = XCDR (tail); | |
4927 | ||
4928 | if (NILP (tail)) | |
4929 | result = Fcons (symbol, result); | |
4930 | } | |
4931 | } | |
4932 | else if (EQ (attr, QCunderline)) | |
4933 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4934 | else if (EQ (attr, QCoverline)) | |
4935 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4936 | else if (EQ (attr, QCstrike_through)) | |
4937 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4938 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4939 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4940 | ||
4941 | return result; | |
4942 | } | |
178c5d9c | 4943 | |
82641697 GM |
4944 | |
4945 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4946 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 4947 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
4948 | Default face attributes override any local face attributes. */) |
4949 | (face, frame) | |
82641697 GM |
4950 | Lisp_Object face, frame; |
4951 | { | |
aad40737 MB |
4952 | int i; |
4953 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4954 | ||
b7826503 | 4955 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4956 | global_lface = lface_from_face_name (NULL, face, 1); |
4957 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4958 | if (NILP (local_lface)) | |
4959 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4960 | |
cec33c90 SM |
4961 | /* Make every specified global attribute override the local one. |
4962 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4963 | the local frame is defined from default specs in `face-defface-spec' | |
4964 | and those should be overridden by global settings. Hence the strange | |
4965 | "global before local" priority. */ | |
aad40737 MB |
4966 | lvec = XVECTOR (local_lface)->contents; |
4967 | gvec = XVECTOR (global_lface)->contents; | |
4968 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4969 | if (! UNSPECIFIEDP (gvec[i])) | |
27d744ae YM |
4970 | { |
4971 | if (IGNORE_DEFFACE_P (gvec[i])) | |
4972 | lvec[i] = Qunspecified; | |
4973 | else | |
4974 | lvec[i] = gvec[i]; | |
4975 | } | |
334a2e2a GM |
4976 | |
4977 | return Qnil; | |
82641697 GM |
4978 | } |
4979 | ||
4980 | ||
4981 | /* The following function is implemented for compatibility with 20.2. | |
4982 | The function is used in x-resolve-fonts when it is asked to | |
4983 | return fonts with the same size as the font of a face. This is | |
4984 | done in fontset.el. */ | |
4985 | ||
178c5d9c | 4986 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
e3cd9e7f | 4987 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
228299fa GM |
4988 | If the optional argument FRAME is given, report on face FACE in that frame. |
4989 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
4990 | The font default for a face is either nil, or a list | |
4991 | of the form (bold), (italic) or (bold italic). | |
7ee72033 MB |
4992 | If FRAME is omitted or nil, use the selected frame. */) |
4993 | (face, frame) | |
82641697 GM |
4994 | Lisp_Object face, frame; |
4995 | { | |
4996 | if (EQ (frame, Qt)) | |
4997 | { | |
4998 | Lisp_Object result = Qnil; | |
4999 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
5000 | ||
5001 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
5002 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
5003 | result = Fcons (Qbold, result); | |
178c5d9c | 5004 | |
0f2c6573 | 5005 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
5006 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
5007 | result = Fcons (Qitalic, result); | |
178c5d9c | 5008 | |
82641697 GM |
5009 | return result; |
5010 | } | |
5011 | else | |
5012 | { | |
5013 | struct frame *f = frame_or_selected_frame (frame, 1); | |
2272e967 | 5014 | int face_id = lookup_named_face (f, face, 0, 1); |
82641697 | 5015 | struct face *face = FACE_FROM_ID (f, face_id); |
b5de343d | 5016 | return face ? build_string (face->font_name) : Qnil; |
82641697 GM |
5017 | } |
5018 | } | |
5019 | ||
5020 | ||
9717e36c | 5021 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
5022 | all attributes are `equal'. Tries to be fast because this function |
5023 | is called quite often. */ | |
5024 | ||
5025 | static INLINE int | |
9717e36c | 5026 | face_attr_equal_p (v1, v2) |
3ebc0939 | 5027 | Lisp_Object v1, v2; |
82641697 | 5028 | { |
9717e36c MB |
5029 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
5030 | and the other is specified. */ | |
5031 | if (XTYPE (v1) != XTYPE (v2)) | |
5032 | return 0; | |
82641697 | 5033 | |
9717e36c MB |
5034 | if (EQ (v1, v2)) |
5035 | return 1; | |
82641697 | 5036 | |
9717e36c MB |
5037 | switch (XTYPE (v1)) |
5038 | { | |
5039 | case Lisp_String: | |
5040 | if (SBYTES (v1) != SBYTES (v2)) | |
5041 | return 0; | |
82641697 | 5042 | |
9717e36c | 5043 | return bcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 5044 | |
9717e36c MB |
5045 | case Lisp_Int: |
5046 | case Lisp_Symbol: | |
5047 | return 0; | |
178c5d9c | 5048 | |
9717e36c MB |
5049 | default: |
5050 | return !NILP (Fequal (v1, v2)); | |
82641697 | 5051 | } |
9717e36c MB |
5052 | } |
5053 | ||
5054 | ||
5055 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
5056 | all attributes are `equal'. Tries to be fast because this function | |
5057 | is called quite often. */ | |
5058 | ||
5059 | static INLINE int | |
5060 | lface_equal_p (v1, v2) | |
5061 | Lisp_Object *v1, *v2; | |
5062 | { | |
5063 | int i, equal_p = 1; | |
5064 | ||
5065 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
5066 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 5067 | |
82641697 GM |
5068 | return equal_p; |
5069 | } | |
5070 | ||
5071 | ||
5072 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
5073 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 5074 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
5075 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
5076 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 MB |
5077 | If FRAME is omitted or nil, use the selected frame. */) |
5078 | (face1, face2, frame) | |
82641697 GM |
5079 | Lisp_Object face1, face2, frame; |
5080 | { | |
5081 | int equal_p; | |
5082 | struct frame *f; | |
5083 | Lisp_Object lface1, lface2; | |
178c5d9c | 5084 | |
82641697 GM |
5085 | if (EQ (frame, Qt)) |
5086 | f = NULL; | |
5087 | else | |
5088 | /* Don't use check_x_frame here because this function is called | |
5089 | before X frames exist. At that time, if FRAME is nil, | |
5090 | selected_frame will be used which is the frame dumped with | |
5091 | Emacs. That frame is not an X frame. */ | |
5092 | f = frame_or_selected_frame (frame, 2); | |
5093 | ||
03f11322 JB |
5094 | lface1 = lface_from_face_name (f, face1, 1); |
5095 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
5096 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
5097 | XVECTOR (lface2)->contents); | |
5098 | return equal_p ? Qt : Qnil; | |
5099 | } | |
5100 | ||
178c5d9c | 5101 | |
82641697 GM |
5102 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
5103 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 5104 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
5105 | If the optional argument FRAME is given, report on face FACE in that frame. |
5106 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
5107 | If FRAME is omitted or nil, use the selected frame. */) |
5108 | (face, frame) | |
82641697 GM |
5109 | Lisp_Object face, frame; |
5110 | { | |
5111 | struct frame *f; | |
5112 | Lisp_Object lface; | |
5113 | int i; | |
5114 | ||
5115 | if (NILP (frame)) | |
c0617987 | 5116 | frame = selected_frame; |
b7826503 | 5117 | CHECK_LIVE_FRAME (frame); |
c0617987 | 5118 | f = XFRAME (frame); |
178c5d9c | 5119 | |
82641697 GM |
5120 | if (EQ (frame, Qt)) |
5121 | lface = lface_from_face_name (NULL, face, 1); | |
5122 | else | |
5123 | lface = lface_from_face_name (f, face, 1); | |
5124 | ||
5125 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 5126 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 5127 | break; |
178c5d9c | 5128 | |
82641697 GM |
5129 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
5130 | } | |
5131 | ||
5132 | ||
5133 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 5134 | 0, 1, 0, |
7ee72033 MB |
5135 | doc: /* Return an alist of frame-local faces defined on FRAME. |
5136 | For internal use only. */) | |
5137 | (frame) | |
82641697 GM |
5138 | Lisp_Object frame; |
5139 | { | |
5140 | struct frame *f = frame_or_selected_frame (frame, 0); | |
5141 | return f->face_alist; | |
5142 | } | |
5143 | ||
5144 | ||
5145 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
5146 | below in computing a hash value for a Lisp face. */ | |
5147 | ||
5148 | static INLINE unsigned | |
5149 | hash_string_case_insensitive (string) | |
5150 | Lisp_Object string; | |
5151 | { | |
53c208f6 | 5152 | const unsigned char *s; |
82641697 GM |
5153 | unsigned hash = 0; |
5154 | xassert (STRINGP (string)); | |
d5db4077 | 5155 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
5156 | hash = (hash << 1) ^ tolower (*s); |
5157 | return hash; | |
5158 | } | |
5159 | ||
5160 | ||
5161 | /* Return a hash code for face attribute vector V. */ | |
5162 | ||
5163 | static INLINE unsigned | |
5164 | lface_hash (v) | |
5165 | Lisp_Object *v; | |
5166 | { | |
5167 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
5168 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
5169 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
5170 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
5171 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
5172 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
5173 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
5174 | } | |
5175 | ||
5176 | ||
5177 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
5178 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
5179 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
5180 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
5181 | |
5182 | static INLINE int | |
5183 | lface_same_font_attributes_p (lface1, lface2) | |
5184 | Lisp_Object *lface1, *lface2; | |
5185 | { | |
5186 | xassert (lface_fully_specified_p (lface1) | |
5187 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
5188 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
5189 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 5190 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 5191 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 5192 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 5193 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
5194 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
5195 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
5196 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 5197 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
d5db4077 KR |
5198 | && xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
5199 | SDATA (lface2[LFACE_FONT_INDEX]))))); | |
82641697 GM |
5200 | } |
5201 | ||
5202 | ||
5203 | \f | |
5204 | /*********************************************************************** | |
5205 | Realized Faces | |
5206 | ***********************************************************************/ | |
5207 | ||
5208 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 5209 | vector ATTR. */ |
82641697 GM |
5210 | |
5211 | static struct face * | |
39506348 | 5212 | make_realized_face (attr) |
82641697 | 5213 | Lisp_Object *attr; |
82641697 GM |
5214 | { |
5215 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5216 | bzero (face, sizeof *face); | |
39506348 | 5217 | face->ascii_face = face; |
82641697 GM |
5218 | bcopy (attr, face->lface, sizeof face->lface); |
5219 | return face; | |
5220 | } | |
5221 | ||
5222 | ||
5223 | /* Free realized face FACE, including its X resources. FACE may | |
5224 | be null. */ | |
5225 | ||
5226 | static void | |
5227 | free_realized_face (f, face) | |
5228 | struct frame *f; | |
5229 | struct face *face; | |
5230 | { | |
5231 | if (face) | |
5232 | { | |
c3cee013 JR |
5233 | #ifdef HAVE_WINDOW_SYSTEM |
5234 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5235 | { |
39506348 KH |
5236 | /* Free fontset of FACE if it is ASCII face. */ |
5237 | if (face->fontset >= 0 && face == face->ascii_face) | |
5238 | free_face_fontset (f, face); | |
82641697 GM |
5239 | if (face->gc) |
5240 | { | |
5241 | x_free_gc (f, face->gc); | |
5242 | face->gc = 0; | |
5243 | } | |
178c5d9c | 5244 | |
82641697 GM |
5245 | free_face_colors (f, face); |
5246 | x_destroy_bitmap (f, face->stipple); | |
5247 | } | |
c3cee013 | 5248 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5249 | |
5250 | xfree (face); | |
5251 | } | |
5252 | } | |
5253 | ||
5254 | ||
5255 | /* Prepare face FACE for subsequent display on frame F. This | |
5256 | allocated GCs if they haven't been allocated yet or have been freed | |
5257 | by clearing the face cache. */ | |
5258 | ||
5259 | void | |
5260 | prepare_face_for_display (f, face) | |
5261 | struct frame *f; | |
5262 | struct face *face; | |
5263 | { | |
c3cee013 JR |
5264 | #ifdef HAVE_WINDOW_SYSTEM |
5265 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5266 | |
82641697 GM |
5267 | if (face->gc == 0) |
5268 | { | |
5269 | XGCValues xgcv; | |
5270 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5271 | ||
5272 | xgcv.foreground = face->foreground; | |
5273 | xgcv.background = face->background; | |
c3cee013 | 5274 | #ifdef HAVE_X_WINDOWS |
82641697 | 5275 | xgcv.graphics_exposures = False; |
c3cee013 | 5276 | #endif |
82641697 GM |
5277 | /* The font of FACE may be null if we couldn't load it. */ |
5278 | if (face->font) | |
5279 | { | |
c3cee013 | 5280 | #ifdef HAVE_X_WINDOWS |
82641697 | 5281 | xgcv.font = face->font->fid; |
c3cee013 JR |
5282 | #endif |
5283 | #ifdef WINDOWSNT | |
5284 | xgcv.font = face->font; | |
1a578e9b | 5285 | #endif |
e0f712ba | 5286 | #ifdef MAC_OS |
1a578e9b | 5287 | xgcv.font = face->font; |
c3cee013 | 5288 | #endif |
82641697 GM |
5289 | mask |= GCFont; |
5290 | } | |
5291 | ||
5292 | BLOCK_INPUT; | |
c3cee013 | 5293 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5294 | if (face->stipple) |
5295 | { | |
be8a72f4 | 5296 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5297 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5298 | mask |= GCFillStyle | GCStipple; | |
5299 | } | |
c3cee013 | 5300 | #endif |
82641697 GM |
5301 | face->gc = x_create_gc (f, mask, &xgcv); |
5302 | UNBLOCK_INPUT; | |
5303 | } | |
c3cee013 | 5304 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5305 | } |
5306 | ||
82641697 | 5307 | \f |
b35df831 MB |
5308 | /* Returns the `distance' between the colors X and Y. */ |
5309 | ||
5310 | static int | |
5311 | color_distance (x, y) | |
5312 | XColor *x, *y; | |
5313 | { | |
5314 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5315 | Quoting from that paper: | |
5316 | ||
5317 | This formula has results that are very close to L*u*v* (with the | |
5318 | modified lightness curve) and, more importantly, it is a more even | |
5319 | algorithm: it does not have a range of colours where it suddenly | |
5320 | gives far from optimal results. | |
5321 | ||
5322 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5323 | ||
5324 | long r = (x->red - y->red) >> 8; | |
5325 | long g = (x->green - y->green) >> 8; | |
5326 | long b = (x->blue - y->blue) >> 8; | |
5327 | long r_mean = (x->red + y->red) >> 9; | |
5328 | ||
5329 | return | |
5330 | (((512 + r_mean) * r * r) >> 8) | |
5331 | + 4 * g * g | |
5332 | + (((767 - r_mean) * b * b) >> 8); | |
5333 | } | |
5334 | ||
5335 | ||
5336 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5337 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5338 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5339 | or lists of the form (RED GREEN BLUE). | |
5340 | If FRAME is unspecified or nil, the current frame is used. */) | |
5341 | (color1, color2, frame) | |
5342 | Lisp_Object color1, color2, frame; | |
5343 | { | |
5344 | struct frame *f; | |
5345 | XColor cdef1, cdef2; | |
5346 | ||
5347 | if (NILP (frame)) | |
5348 | frame = selected_frame; | |
5349 | CHECK_LIVE_FRAME (frame); | |
5350 | f = XFRAME (frame); | |
5351 | ||
6c8e1d62 JB |
5352 | if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1)) |
5353 | && !(STRINGP (color1) && defined_color (f, SDATA (color1), &cdef1, 0))) | |
b35df831 | 5354 | signal_error ("Invalid color", color1); |
6c8e1d62 JB |
5355 | if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2)) |
5356 | && !(STRINGP (color2) && defined_color (f, SDATA (color2), &cdef2, 0))) | |
b35df831 MB |
5357 | signal_error ("Invalid color", color2); |
5358 | ||
5359 | return make_number (color_distance (&cdef1, &cdef2)); | |
5360 | } | |
5361 | ||
5362 | \f | |
82641697 GM |
5363 | /*********************************************************************** |
5364 | Face Cache | |
5365 | ***********************************************************************/ | |
5366 | ||
5367 | /* Return a new face cache for frame F. */ | |
5368 | ||
5369 | static struct face_cache * | |
5370 | make_face_cache (f) | |
5371 | struct frame *f; | |
5372 | { | |
5373 | struct face_cache *c; | |
5374 | int size; | |
5375 | ||
5376 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5377 | bzero (c, sizeof *c); | |
5378 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5379 | c->buckets = (struct face **) xmalloc (size); | |
5380 | bzero (c->buckets, size); | |
5381 | c->size = 50; | |
5382 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5383 | c->f = f; | |
ceeda019 | 5384 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5385 | return c; |
5386 | } | |
5387 | ||
5388 | ||
5389 | /* Clear out all graphics contexts for all realized faces, except for | |
5390 | the basic faces. This should be done from time to time just to avoid | |
5391 | keeping too many graphics contexts that are no longer needed. */ | |
5392 | ||
5393 | static void | |
5394 | clear_face_gcs (c) | |
5395 | struct face_cache *c; | |
5396 | { | |
c3cee013 | 5397 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5398 | { |
c3cee013 | 5399 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5400 | int i; |
5401 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5402 | { | |
5403 | struct face *face = c->faces_by_id[i]; | |
5404 | if (face && face->gc) | |
5405 | { | |
5406 | x_free_gc (c->f, face->gc); | |
5407 | face->gc = 0; | |
5408 | } | |
5409 | } | |
c3cee013 | 5410 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5411 | } |
5412 | } | |
5413 | ||
5414 | ||
7fc92635 JB |
5415 | /* Free all realized faces in face cache C, including basic faces. |
5416 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
5417 | matrix is marked invalid, so that a display caused by an expose |
5418 | event doesn't try to use faces we destroyed. */ | |
5419 | ||
5420 | static void | |
5421 | free_realized_faces (c) | |
5422 | struct face_cache *c; | |
5423 | { | |
5424 | if (c && c->used) | |
5425 | { | |
5426 | int i, size; | |
5427 | struct frame *f = c->f; | |
5428 | ||
84ec3b4b GM |
5429 | /* We must block input here because we can't process X events |
5430 | safely while only some faces are freed, or when the frame's | |
5431 | current matrix still references freed faces. */ | |
5432 | BLOCK_INPUT; | |
5433 | ||
82641697 GM |
5434 | for (i = 0; i < c->used; ++i) |
5435 | { | |
5436 | free_realized_face (f, c->faces_by_id[i]); | |
5437 | c->faces_by_id[i] = NULL; | |
5438 | } | |
178c5d9c | 5439 | |
82641697 GM |
5440 | c->used = 0; |
5441 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5442 | bzero (c->buckets, size); | |
5443 | ||
5444 | /* Must do a thorough redisplay the next time. Mark current | |
5445 | matrices as invalid because they will reference faces freed | |
5446 | above. This function is also called when a frame is | |
5447 | destroyed. In this case, the root window of F is nil. */ | |
5448 | if (WINDOWP (f->root_window)) | |
5449 | { | |
5450 | clear_current_matrices (f); | |
5451 | ++windows_or_buffers_changed; | |
5452 | } | |
84ec3b4b GM |
5453 | |
5454 | UNBLOCK_INPUT; | |
82641697 GM |
5455 | } |
5456 | } | |
5457 | ||
5458 | ||
39506348 KH |
5459 | /* Free all faces realized for multibyte characters on frame F that |
5460 | has FONTSET. */ | |
5461 | ||
5462 | void | |
5463 | free_realized_multibyte_face (f, fontset) | |
5464 | struct frame *f; | |
5465 | int fontset; | |
5466 | { | |
5467 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5468 | struct face *face; | |
5469 | int i; | |
5470 | ||
84ec3b4b GM |
5471 | /* We must block input here because we can't process X events safely |
5472 | while only some faces are freed, or when the frame's current | |
5473 | matrix still references freed faces. */ | |
5474 | BLOCK_INPUT; | |
178c5d9c | 5475 | |
39506348 KH |
5476 | for (i = 0; i < cache->used; i++) |
5477 | { | |
5478 | face = cache->faces_by_id[i]; | |
5479 | if (face | |
5480 | && face != face->ascii_face | |
5481 | && face->fontset == fontset) | |
5482 | { | |
5483 | uncache_face (cache, face); | |
5484 | free_realized_face (f, face); | |
5485 | } | |
5486 | } | |
178c5d9c | 5487 | |
84ec3b4b GM |
5488 | /* Must do a thorough redisplay the next time. Mark current |
5489 | matrices as invalid because they will reference faces freed | |
5490 | above. This function is also called when a frame is destroyed. | |
5491 | In this case, the root window of F is nil. */ | |
39506348 KH |
5492 | if (WINDOWP (f->root_window)) |
5493 | { | |
5494 | clear_current_matrices (f); | |
5495 | ++windows_or_buffers_changed; | |
5496 | } | |
178c5d9c | 5497 | |
84ec3b4b | 5498 | UNBLOCK_INPUT; |
39506348 KH |
5499 | } |
5500 | ||
5501 | ||
82641697 GM |
5502 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5503 | This is done after attributes of a named face have been changed, | |
5504 | because we can't tell which realized faces depend on that face. */ | |
5505 | ||
5506 | void | |
5507 | free_all_realized_faces (frame) | |
5508 | Lisp_Object frame; | |
5509 | { | |
5510 | if (NILP (frame)) | |
5511 | { | |
5512 | Lisp_Object rest; | |
5513 | FOR_EACH_FRAME (rest, frame) | |
5514 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5515 | } | |
5516 | else | |
5517 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5518 | } | |
5519 | ||
5520 | ||
5521 | /* Free face cache C and faces in it, including their X resources. */ | |
5522 | ||
5523 | static void | |
5524 | free_face_cache (c) | |
5525 | struct face_cache *c; | |
5526 | { | |
5527 | if (c) | |
5528 | { | |
5529 | free_realized_faces (c); | |
5530 | xfree (c->buckets); | |
5531 | xfree (c->faces_by_id); | |
5532 | xfree (c); | |
5533 | } | |
5534 | } | |
5535 | ||
5536 | ||
5537 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5538 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5539 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5540 | otherwise lookup_face would find FACE for every character, even if |
5541 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5542 | |
5543 | static void | |
5544 | cache_face (c, face, hash) | |
5545 | struct face_cache *c; | |
5546 | struct face *face; | |
5547 | unsigned hash; | |
5548 | { | |
5549 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5550 | ||
5551 | face->hash = hash; | |
5552 | ||
5553 | if (face->fontset >= 0) | |
5554 | { | |
5555 | struct face *last = c->buckets[i]; | |
5556 | if (last) | |
5557 | { | |
5558 | while (last->next) | |
5559 | last = last->next; | |
5560 | last->next = face; | |
5561 | face->prev = last; | |
5562 | face->next = NULL; | |
5563 | } | |
5564 | else | |
5565 | { | |
5566 | c->buckets[i] = face; | |
5567 | face->prev = face->next = NULL; | |
5568 | } | |
5569 | } | |
5570 | else | |
5571 | { | |
5572 | face->prev = NULL; | |
5573 | face->next = c->buckets[i]; | |
5574 | if (face->next) | |
5575 | face->next->prev = face; | |
5576 | c->buckets[i] = face; | |
5577 | } | |
5578 | ||
5579 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5580 | slot as FACE->id. */ | |
5581 | for (i = 0; i < c->used; ++i) | |
5582 | if (c->faces_by_id[i] == NULL) | |
5583 | break; | |
5584 | face->id = i; | |
178c5d9c | 5585 | |
82641697 | 5586 | /* Maybe enlarge C->faces_by_id. */ |
d7078aef | 5587 | if (i == c->used) |
82641697 | 5588 | { |
d7078aef KS |
5589 | if (c->used == c->size) |
5590 | { | |
5591 | int new_size, sz; | |
5592 | new_size = min (2 * c->size, MAX_FACE_ID); | |
5593 | if (new_size == c->size) | |
5594 | abort (); /* Alternatives? ++kfs */ | |
5595 | sz = new_size * sizeof *c->faces_by_id; | |
5596 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5597 | c->size = new_size; | |
5598 | } | |
5599 | c->used++; | |
82641697 GM |
5600 | } |
5601 | ||
5602 | #if GLYPH_DEBUG | |
5603 | /* Check that FACE got a unique id. */ | |
5604 | { | |
5605 | int j, n; | |
5606 | struct face *face; | |
5607 | ||
5608 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5609 | for (face = c->buckets[j]; face; face = face->next) | |
5610 | if (face->id == i) | |
5611 | ++n; | |
5612 | ||
5613 | xassert (n == 1); | |
5614 | } | |
5615 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5616 | |
82641697 | 5617 | c->faces_by_id[i] = face; |
82641697 GM |
5618 | } |
5619 | ||
5620 | ||
5621 | /* Remove face FACE from cache C. */ | |
5622 | ||
5623 | static void | |
5624 | uncache_face (c, face) | |
5625 | struct face_cache *c; | |
5626 | struct face *face; | |
5627 | { | |
5628 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5629 | |
82641697 GM |
5630 | if (face->prev) |
5631 | face->prev->next = face->next; | |
5632 | else | |
5633 | c->buckets[i] = face->next; | |
178c5d9c | 5634 | |
82641697 GM |
5635 | if (face->next) |
5636 | face->next->prev = face->prev; | |
178c5d9c | 5637 | |
82641697 GM |
5638 | c->faces_by_id[face->id] = NULL; |
5639 | if (face->id == c->used) | |
5640 | --c->used; | |
5641 | } | |
5642 | ||
5643 | ||
5644 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5645 | of frame F. The face will be used to display character C. Value |
5646 | is the ID of the face found. If no suitable face is found, realize | |
5647 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5648 | is a face that has the same attributes. */ |
82641697 GM |
5649 | |
5650 | INLINE int | |
39506348 | 5651 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5652 | struct frame *f; |
5653 | Lisp_Object *attr; | |
39506348 KH |
5654 | int c; |
5655 | struct face *base_face; | |
82641697 | 5656 | { |
39506348 | 5657 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5658 | unsigned hash; |
5659 | int i; | |
5660 | struct face *face; | |
5661 | ||
39506348 | 5662 | xassert (cache != NULL); |
82641697 GM |
5663 | check_lface_attrs (attr); |
5664 | ||
5665 | /* Look up ATTR in the face cache. */ | |
5666 | hash = lface_hash (attr); | |
5667 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5668 | |
39506348 | 5669 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5670 | if (face->hash == hash |
44747bd0 | 5671 | && (!FRAME_WINDOW_P (f) |
39506348 | 5672 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5673 | && lface_equal_p (face->lface, attr)) |
5674 | break; | |
5675 | ||
5676 | /* If not found, realize a new face. */ | |
5677 | if (face == NULL) | |
39506348 | 5678 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5679 | |
5680 | #if GLYPH_DEBUG | |
5681 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5682 | |
5683 | /* When this function is called from face_for_char (in this case, C is | |
5684 | a multibyte character), a fontset of a face returned by | |
5685 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5686 | C) is not sutisfied. The fontset is set for this face by | |
5687 | face_for_char later. */ | |
c87a1fda | 5688 | #if 0 |
c3cee013 | 5689 | if (FRAME_WINDOW_P (f)) |
39506348 | 5690 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5691 | #endif |
82641697 | 5692 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5693 | |
82641697 GM |
5694 | return face->id; |
5695 | } | |
5696 | ||
5697 | ||
5698 | /* Return the face id of the realized face for named face SYMBOL on | |
b5de343d GM |
5699 | frame F suitable for displaying character C. Value is -1 if the |
5700 | face couldn't be determined, which might happen if the default face | |
5701 | isn't realized and cannot be realized. */ | |
82641697 GM |
5702 | |
5703 | int | |
2272e967 | 5704 | lookup_named_face (f, symbol, c, signal_p) |
82641697 GM |
5705 | struct frame *f; |
5706 | Lisp_Object symbol; | |
39506348 | 5707 | int c; |
2272e967 | 5708 | int signal_p; |
82641697 GM |
5709 | { |
5710 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5711 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5712 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5713 | ||
b5de343d GM |
5714 | if (default_face == NULL) |
5715 | { | |
5716 | if (!realize_basic_faces (f)) | |
5717 | return -1; | |
5718 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
418ca4d2 RS |
5719 | if (default_face == NULL) |
5720 | abort (); /* realize_basic_faces must have set it up */ | |
b5de343d GM |
5721 | } |
5722 | ||
2272e967 KS |
5723 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p)) |
5724 | return -1; | |
5725 | ||
82641697 | 5726 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 MB |
5727 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
5728 | ||
39506348 | 5729 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5730 | } |
5731 | ||
5732 | ||
5733 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5734 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5735 | ||
5736 | int | |
5737 | ascii_face_of_lisp_face (f, lface_id) | |
5738 | struct frame *f; | |
5739 | int lface_id; | |
5740 | { | |
5741 | int face_id; | |
178c5d9c | 5742 | |
82641697 GM |
5743 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5744 | { | |
5745 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
2272e967 | 5746 | face_id = lookup_named_face (f, face_name, 0, 1); |
82641697 GM |
5747 | } |
5748 | else | |
5749 | face_id = -1; | |
5750 | ||
5751 | return face_id; | |
5752 | } | |
5753 | ||
5754 | ||
5755 | /* Return a face for charset ASCII that is like the face with id | |
5756 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5757 | STEPS < 0 means larger. Value is the id of the face. */ | |
5758 | ||
5759 | int | |
5760 | smaller_face (f, face_id, steps) | |
5761 | struct frame *f; | |
5762 | int face_id, steps; | |
39506348 | 5763 | { |
c3cee013 | 5764 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5765 | struct face *face; |
5766 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5767 | int pt, last_pt, last_height; | |
5768 | int delta; | |
5769 | int new_face_id; | |
5770 | struct face *new_face; | |
5771 | ||
5772 | /* If not called for an X frame, just return the original face. */ | |
5773 | if (FRAME_TERMCAP_P (f)) | |
5774 | return face_id; | |
5775 | ||
5776 | /* Try in increments of 1/2 pt. */ | |
5777 | delta = steps < 0 ? 5 : -5; | |
5778 | steps = abs (steps); | |
178c5d9c | 5779 | |
82641697 GM |
5780 | face = FACE_FROM_ID (f, face_id); |
5781 | bcopy (face->lface, attrs, sizeof attrs); | |
5782 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5783 | new_face_id = face_id; | |
5784 | last_height = FONT_HEIGHT (face->font); | |
5785 | ||
5786 | while (steps | |
5787 | && pt + delta > 0 | |
5788 | /* Give up if we cannot find a font within 10pt. */ | |
5789 | && abs (last_pt - pt) < 100) | |
5790 | { | |
5791 | /* Look up a face for a slightly smaller/larger font. */ | |
5792 | pt += delta; | |
5793 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5794 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5795 | new_face = FACE_FROM_ID (f, new_face_id); |
5796 | ||
5797 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5798 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5799 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5800 | { |
5801 | --steps; | |
5802 | last_height = FONT_HEIGHT (new_face->font); | |
5803 | last_pt = pt; | |
5804 | } | |
5805 | } | |
5806 | ||
5807 | return new_face_id; | |
5808 | ||
c3cee013 | 5809 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5810 | |
5811 | return face_id; | |
178c5d9c | 5812 | |
c3cee013 | 5813 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5814 | } |
5815 | ||
5816 | ||
5817 | /* Return a face for charset ASCII that is like the face with id | |
5818 | FACE_ID on frame F, but has height HEIGHT. */ | |
5819 | ||
5820 | int | |
5821 | face_with_height (f, face_id, height) | |
5822 | struct frame *f; | |
5823 | int face_id; | |
5824 | int height; | |
5825 | { | |
c3cee013 | 5826 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5827 | struct face *face; |
5828 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5829 | ||
5830 | if (FRAME_TERMCAP_P (f) | |
5831 | || height <= 0) | |
5832 | return face_id; | |
5833 | ||
5834 | face = FACE_FROM_ID (f, face_id); | |
5835 | bcopy (face->lface, attrs, sizeof attrs); | |
5836 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5837 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5838 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5839 | |
82641697 GM |
5840 | return face_id; |
5841 | } | |
5842 | ||
b5de343d | 5843 | |
44747bd0 | 5844 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5845 | frame F suitable for displaying character C, and use attributes of |
5846 | the face FACE_ID for attributes that aren't completely specified by | |
5847 | SYMBOL. This is like lookup_named_face, except that the default | |
5848 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5849 | is assumed to be already realized. */ | |
44747bd0 EZ |
5850 | |
5851 | int | |
d196a547 | 5852 | lookup_derived_face (f, symbol, c, face_id, signal_p) |
44747bd0 EZ |
5853 | struct frame *f; |
5854 | Lisp_Object symbol; | |
39506348 | 5855 | int c; |
44747bd0 | 5856 | int face_id; |
43f15d4a | 5857 | int signal_p; |
44747bd0 EZ |
5858 | { |
5859 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5860 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5861 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5862 | ||
5863 | if (!default_face) | |
5864 | abort (); | |
5865 | ||
d196a547 | 5866 | get_lface_attributes (f, symbol, symbol_attrs, signal_p); |
44747bd0 | 5867 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 | 5868 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
39506348 | 5869 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5870 | } |
5871 | ||
f6608d5c RS |
5872 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
5873 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 5874 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
5875 | (plist) |
5876 | Lisp_Object plist; | |
5877 | { | |
5878 | Lisp_Object lface; | |
5879 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
5880 | Qunspecified); | |
a0a23346 MB |
5881 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
5882 | 1, 0); | |
f6608d5c RS |
5883 | return lface; |
5884 | } | |
5885 | ||
82641697 GM |
5886 | |
5887 | \f | |
9717e36c MB |
5888 | /*********************************************************************** |
5889 | Face capability testing | |
5890 | ***********************************************************************/ | |
5891 | ||
5892 | ||
5893 | /* If the distance (as returned by color_distance) between two colors is | |
5894 | less than this, then they are considered the same, for determining | |
5895 | whether a color is supported or not. The range of values is 0-65535. */ | |
5896 | ||
5897 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
5898 | ||
ccda4e3c | 5899 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
5900 | |
5901 | /* Return non-zero if all the face attributes in ATTRS are supported | |
5902 | on the window-system frame F. | |
5903 | ||
5904 | The definition of `supported' is somewhat heuristic, but basically means | |
5905 | that a face containing all the attributes in ATTRS, when merged with the | |
5906 | default face for display, can be represented in a way that's | |
5907 | ||
5908 | \(1) different in appearance than the default face, and | |
8e330b22 | 5909 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
5910 | |
5911 | static int | |
8e330b22 | 5912 | x_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
5913 | struct frame *f; |
5914 | Lisp_Object *attrs; | |
8e330b22 | 5915 | struct face *def_face; |
9717e36c | 5916 | { |
8e330b22 | 5917 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
5918 | |
5919 | /* Check that other specified attributes are different that the default | |
5920 | face. */ | |
5921 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
5922 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
5923 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
5924 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
5925 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
5926 | def_attrs[LFACE_INVERSE_INDEX])) | |
5927 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
5928 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
5929 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
5930 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
5931 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
5932 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
5933 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
5934 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
5935 | def_attrs[LFACE_STIPPLE_INDEX])) | |
5936 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
5937 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
5938 | def_attrs[LFACE_OVERLINE_INDEX])) | |
5939 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
5940 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5941 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
5942 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
5943 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
5944 | def_attrs[LFACE_BOX_INDEX]))) | |
5945 | return 0; | |
5946 | ||
5947 | /* Check font-related attributes, as those are the most commonly | |
5948 | "unsupported" on a window-system (because of missing fonts). */ | |
5949 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
5950 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
5951 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
5952 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
5953 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
5954 | || !UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX])) | |
5955 | { | |
5956 | struct face *face; | |
5957 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
5958 | ||
5959 | bcopy (def_attrs, merged_attrs, sizeof merged_attrs); | |
5960 | ||
a0a23346 | 5961 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c MB |
5962 | |
5963 | face = FACE_FROM_ID (f, lookup_face (f, merged_attrs, 0, 0)); | |
5964 | ||
5965 | if (! face) | |
2010ba8c | 5966 | error ("Cannot make face"); |
9717e36c MB |
5967 | |
5968 | /* If the font is the same, then not supported. */ | |
5969 | if (face->font == def_face->font) | |
5970 | return 0; | |
5971 | } | |
5972 | ||
5973 | /* Everything checks out, this face is supported. */ | |
5974 | return 1; | |
5975 | } | |
5976 | ||
ccda4e3c | 5977 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
5978 | |
5979 | /* Return non-zero if all the face attributes in ATTRS are supported | |
5980 | on the tty frame F. | |
5981 | ||
5982 | The definition of `supported' is somewhat heuristic, but basically means | |
5983 | that a face containing all the attributes in ATTRS, when merged | |
5984 | with the default face for display, can be represented in a way that's | |
5985 | ||
5986 | \(1) different in appearance than the default face, and | |
5987 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
5988 | ||
5989 | Point (2) implies that a `:weight black' attribute will be satisfied | |
5990 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
5991 | long as the terminal can display a yellowish color, but `:slant italic' | |
5992 | will _not_ be satisfied by the tty display code's automatic | |
5993 | substitution of a `dim' face for italic. */ | |
5994 | ||
5995 | static int | |
8e330b22 | 5996 | tty_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
5997 | struct frame *f; |
5998 | Lisp_Object *attrs; | |
8e330b22 | 5999 | struct face *def_face; |
9717e36c | 6000 | { |
734e9514 | 6001 | int weight; |
9717e36c MB |
6002 | Lisp_Object val, fg, bg; |
6003 | XColor fg_tty_color, fg_std_color; | |
6004 | XColor bg_tty_color, bg_std_color; | |
6005 | unsigned test_caps = 0; | |
8e330b22 | 6006 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 6007 | |
9717e36c | 6008 | |
8e330b22 MB |
6009 | /* First check some easy-to-check stuff; ttys support none of the |
6010 | following attributes, so we can just return false if any are requested | |
6011 | (even if `nominal' values are specified, we should still return false, | |
6012 | as that will be the same value that the default face uses). We | |
6013 | consider :slant unsupportable on ttys, even though the face code | |
6014 | actually `fakes' them using a dim attribute if possible. This is | |
6015 | because the faked result is too different from what the face | |
6016 | specifies. */ | |
6017 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
6018 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
6019 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
6020 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
6021 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
6022 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
6023 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
6024 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
6025 | return 0; |
6026 | ||
6027 | ||
6028 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
6029 | ||
6030 | /* font weight (bold/dim) */ | |
6031 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6032 | if (weight >= 0) | |
6033 | { | |
8e330b22 MB |
6034 | int def_weight = face_numeric_weight (def_attrs[LFACE_WEIGHT_INDEX]); |
6035 | ||
9717e36c | 6036 | if (weight > XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6037 | { |
6038 | if (def_weight > XLFD_WEIGHT_MEDIUM) | |
6039 | return 0; /* same as default */ | |
6040 | test_caps = TTY_CAP_BOLD; | |
6041 | } | |
9717e36c | 6042 | else if (weight < XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6043 | { |
6044 | if (def_weight < XLFD_WEIGHT_MEDIUM) | |
6045 | return 0; /* same as default */ | |
6046 | test_caps = TTY_CAP_DIM; | |
6047 | } | |
6048 | else if (def_weight == XLFD_WEIGHT_MEDIUM) | |
6049 | return 0; /* same as default */ | |
9717e36c MB |
6050 | } |
6051 | ||
6052 | /* underlining */ | |
6053 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 6054 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
6055 | { |
6056 | if (STRINGP (val)) | |
8e330b22 MB |
6057 | return 0; /* ttys can't use colored underlines */ |
6058 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6059 | return 0; /* same as default */ | |
9717e36c MB |
6060 | else |
6061 | test_caps |= TTY_CAP_UNDERLINE; | |
6062 | } | |
6063 | ||
6064 | /* inverse video */ | |
6065 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
6066 | if (!UNSPECIFIEDP (val)) |
6067 | { | |
a13ab63f | 6068 | if (face_attr_equal_p (val, def_attrs[LFACE_INVERSE_INDEX])) |
8e330b22 MB |
6069 | return 0; /* same as default */ |
6070 | else | |
6071 | test_caps |= TTY_CAP_INVERSE; | |
6072 | } | |
9717e36c MB |
6073 | |
6074 | ||
6075 | /* Color testing. */ | |
6076 | ||
6077 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
6078 | we use them when calling `tty_capable_p' below, even if the face | |
6079 | specifies no colors. */ | |
6080 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6081 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6082 | ||
6083 | /* Check if foreground color is close enough. */ | |
6084 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
6085 | if (STRINGP (fg)) | |
6086 | { | |
8e330b22 MB |
6087 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6088 | ||
6089 | if (face_attr_equal_p (fg, def_fg)) | |
6090 | return 0; /* same as default */ | |
6091 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
6092 | return 0; /* not a valid color */ | |
9717e36c MB |
6093 | else if (color_distance (&fg_tty_color, &fg_std_color) |
6094 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6095 | return 0; /* displayed color is too different */ |
6096 | else | |
6097 | /* Make sure the color is really different than the default. */ | |
6098 | { | |
6099 | XColor def_fg_color; | |
6100 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
6101 | && (color_distance (&fg_tty_color, &def_fg_color) | |
6102 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6103 | return 0; | |
6104 | } | |
9717e36c MB |
6105 | } |
6106 | ||
6107 | /* Check if background color is close enough. */ | |
6108 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
6109 | if (STRINGP (bg)) | |
6110 | { | |
a13ab63f | 6111 | Lisp_Object def_bg = def_attrs[LFACE_BACKGROUND_INDEX]; |
8e330b22 MB |
6112 | |
6113 | if (face_attr_equal_p (bg, def_bg)) | |
6114 | return 0; /* same as default */ | |
6115 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
6116 | return 0; /* not a valid color */ | |
9717e36c MB |
6117 | else if (color_distance (&bg_tty_color, &bg_std_color) |
6118 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6119 | return 0; /* displayed color is too different */ |
6120 | else | |
6121 | /* Make sure the color is really different than the default. */ | |
6122 | { | |
6123 | XColor def_bg_color; | |
6124 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
6125 | && (color_distance (&bg_tty_color, &def_bg_color) | |
6126 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6127 | return 0; | |
6128 | } | |
9717e36c MB |
6129 | } |
6130 | ||
6131 | /* If both foreground and background are requested, see if the | |
6132 | distance between them is OK. We just check to see if the distance | |
6133 | between the tty's foreground and background is close enough to the | |
6134 | distance between the standard foreground and background. */ | |
6135 | if (STRINGP (fg) && STRINGP (bg)) | |
6136 | { | |
6137 | int delta_delta | |
6138 | = (color_distance (&fg_std_color, &bg_std_color) | |
6139 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
6140 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
6141 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
6142 | return 0; | |
6143 | } | |
6144 | ||
6145 | ||
6146 | /* See if the capabilities we selected above are supported, with the | |
6147 | given colors. */ | |
6148 | if (test_caps != 0 && | |
6149 | ! tty_capable_p (f, test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) | |
6150 | return 0; | |
6151 | ||
6152 | ||
6153 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
6154 | return 1; | |
6155 | } | |
6156 | ||
6157 | ||
6158 | DEFUN ("display-supports-face-attributes-p", | |
6159 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
6160 | 1, 2, 0, | |
6161 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
6162 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 6163 | nil (meaning the selected frame's display). |
9717e36c MB |
6164 | |
6165 | The definition of `supported' is somewhat heuristic, but basically means | |
6166 | that a face containing all the attributes in ATTRIBUTES, when merged | |
6167 | with the default face for display, can be represented in a way that's | |
6168 | ||
6169 | \(1) different in appearance than the default face, and | |
6170 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6171 | ||
6172 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
6173 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
6174 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
6175 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 6176 | face for italic. */) |
9717e36c MB |
6177 | (attributes, display) |
6178 | Lisp_Object attributes, display; | |
6179 | { | |
221439a0 | 6180 | int supports = 0, i; |
9717e36c MB |
6181 | Lisp_Object frame; |
6182 | struct frame *f; | |
8e330b22 | 6183 | struct face *def_face; |
9717e36c MB |
6184 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6185 | ||
0722292b MB |
6186 | if (noninteractive || !initialized) |
6187 | /* We may not be able to access low-level face information in batch | |
6188 | mode, or before being dumped, and this function is not going to | |
6189 | be very useful in those cases anyway, so just give up. */ | |
6190 | return Qnil; | |
6191 | ||
9717e36c MB |
6192 | if (NILP (display)) |
6193 | frame = selected_frame; | |
6194 | else if (FRAMEP (display)) | |
6195 | frame = display; | |
6196 | else | |
6197 | { | |
6198 | /* Find any frame on DISPLAY. */ | |
6199 | Lisp_Object fl_tail; | |
6200 | ||
6201 | frame = Qnil; | |
6202 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
6203 | { | |
6204 | frame = XCAR (fl_tail); | |
6205 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
6206 | XFRAME (frame)->param_alist)), | |
6207 | display))) | |
6208 | break; | |
6209 | } | |
6210 | } | |
6211 | ||
6212 | CHECK_LIVE_FRAME (frame); | |
6213 | f = XFRAME (frame); | |
6214 | ||
6215 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
6216 | attrs[i] = Qunspecified; | |
a0a23346 | 6217 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 6218 | |
8e330b22 MB |
6219 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6220 | if (def_face == NULL) | |
6221 | { | |
6222 | if (! realize_basic_faces (f)) | |
734e9514 | 6223 | error ("Cannot realize default face"); |
8e330b22 | 6224 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
418ca4d2 RS |
6225 | if (def_face == NULL) |
6226 | abort (); /* realize_basic_faces must have set it up */ | |
8e330b22 MB |
6227 | } |
6228 | ||
9717e36c MB |
6229 | /* Dispatch to the appropriate handler. */ |
6230 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 6231 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 6232 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 6233 | else |
8e330b22 MB |
6234 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
6235 | #endif | |
9717e36c MB |
6236 | |
6237 | return supports ? Qt : Qnil; | |
6238 | } | |
6239 | ||
6240 | \f | |
82641697 GM |
6241 | /*********************************************************************** |
6242 | Font selection | |
6243 | ***********************************************************************/ | |
6244 | ||
6245 | DEFUN ("internal-set-font-selection-order", | |
6246 | Finternal_set_font_selection_order, | |
6247 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 6248 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
6249 | ORDER must be a list of length 4 containing the symbols `:width', |
6250 | `:height', `:weight', and `:slant'. Face attributes appearing | |
6251 | first in ORDER are matched first, e.g. if `:height' appears before | |
6252 | `:weight' in ORDER, font selection first tries to find a font with | |
6253 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
6254 | Value is ORDER. */) |
6255 | (order) | |
228299fa | 6256 | Lisp_Object order; |
82641697 GM |
6257 | { |
6258 | Lisp_Object list; | |
6259 | int i; | |
a08332c0 | 6260 | int indices[DIM (font_sort_order)]; |
178c5d9c | 6261 | |
b7826503 | 6262 | CHECK_LIST (order); |
82641697 GM |
6263 | bzero (indices, sizeof indices); |
6264 | i = 0; | |
6265 | ||
6266 | for (list = order; | |
6267 | CONSP (list) && i < DIM (indices); | |
6268 | list = XCDR (list), ++i) | |
6269 | { | |
6270 | Lisp_Object attr = XCAR (list); | |
6271 | int xlfd; | |
6272 | ||
6273 | if (EQ (attr, QCwidth)) | |
6274 | xlfd = XLFD_SWIDTH; | |
6275 | else if (EQ (attr, QCheight)) | |
6276 | xlfd = XLFD_POINT_SIZE; | |
6277 | else if (EQ (attr, QCweight)) | |
6278 | xlfd = XLFD_WEIGHT; | |
6279 | else if (EQ (attr, QCslant)) | |
6280 | xlfd = XLFD_SLANT; | |
6281 | else | |
6282 | break; | |
6283 | ||
6284 | if (indices[i] != 0) | |
6285 | break; | |
6286 | indices[i] = xlfd; | |
6287 | } | |
6288 | ||
a08332c0 | 6289 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 6290 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
6291 | for (i = 0; i < DIM (font_sort_order); ++i) |
6292 | if (indices[i] == 0) | |
6293 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
6294 | |
6295 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
6296 | { | |
6297 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
6298 | free_all_realized_faces (Qnil); | |
6299 | } | |
178c5d9c | 6300 | |
82641697 GM |
6301 | return Qnil; |
6302 | } | |
6303 | ||
6304 | ||
6305 | DEFUN ("internal-set-alternative-font-family-alist", | |
6306 | Finternal_set_alternative_font_family_alist, | |
6307 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 6308 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
6309 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6310 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
6311 | be found. Value is ALIST. */) |
6312 | (alist) | |
82641697 GM |
6313 | Lisp_Object alist; |
6314 | { | |
b7826503 | 6315 | CHECK_LIST (alist); |
82641697 GM |
6316 | Vface_alternative_font_family_alist = alist; |
6317 | free_all_realized_faces (Qnil); | |
6318 | return alist; | |
6319 | } | |
6320 | ||
6321 | ||
32fcc231 GM |
6322 | DEFUN ("internal-set-alternative-font-registry-alist", |
6323 | Finternal_set_alternative_font_registry_alist, | |
6324 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 6325 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
6326 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6327 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
6328 | be found. Value is ALIST. */) |
6329 | (alist) | |
32fcc231 GM |
6330 | Lisp_Object alist; |
6331 | { | |
b7826503 | 6332 | CHECK_LIST (alist); |
32fcc231 GM |
6333 | Vface_alternative_font_registry_alist = alist; |
6334 | free_all_realized_faces (Qnil); | |
6335 | return alist; | |
6336 | } | |
6337 | ||
6338 | ||
c3cee013 | 6339 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6340 | |
82641697 GM |
6341 | /* Value is non-zero if FONT is the name of a scalable font. The |
6342 | X11R6 XLFD spec says that point size, pixel size, and average width | |
6343 | are zero for scalable fonts. Intlfonts contain at least one | |
6344 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
6345 | just test average width. */ | |
6346 | ||
6347 | static int | |
6348 | font_scalable_p (font) | |
6349 | struct font_name *font; | |
6350 | { | |
6351 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
6352 | return (*s == '0' && *(s + 1) == '\0') |
6353 | #ifdef WINDOWSNT | |
6354 | /* Windows implementation of XLFD is slightly broken for backward | |
6355 | compatibility with previous broken versions, so test for | |
6356 | wildcards as well as 0. */ | |
6357 | || *s == '*' | |
6358 | #endif | |
6359 | ; | |
82641697 GM |
6360 | } |
6361 | ||
6362 | ||
8e1b21a7 KH |
6363 | /* Ignore the difference of font point size less than this value. */ |
6364 | ||
6365 | #define FONT_POINT_SIZE_QUANTUM 5 | |
6366 | ||
82641697 GM |
6367 | /* Value is non-zero if FONT1 is a better match for font attributes |
6368 | VALUES than FONT2. VALUES is an array of face attribute values in | |
6369 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
6370 | sizes. AVGWIDTH, if not zero, is a specified font average width |
6371 | to compare with. */ | |
82641697 GM |
6372 | |
6373 | static int | |
a08332c0 | 6374 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
6375 | int *values; |
6376 | struct font_name *font1, *font2; | |
a08332c0 | 6377 | int compare_pt_p, avgwidth; |
82641697 GM |
6378 | { |
6379 | int i; | |
178c5d9c | 6380 | |
6c1195ab RS |
6381 | /* Any font is better than no font. */ |
6382 | if (! font1) | |
6383 | return 0; | |
6384 | if (! font2) | |
6385 | return 1; | |
6386 | ||
a08332c0 | 6387 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6388 | { |
6389 | int xlfd_idx = font_sort_order[i]; | |
6390 | ||
6391 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
6392 | { | |
f70400f2 KH |
6393 | int delta1, delta2; |
6394 | ||
6395 | if (xlfd_idx == XLFD_POINT_SIZE) | |
6396 | { | |
6397 | delta1 = abs (values[i] - (font1->numeric[xlfd_idx] | |
6398 | / font1->rescale_ratio)); | |
6399 | delta2 = abs (values[i] - (font2->numeric[xlfd_idx] | |
6400 | / font2->rescale_ratio)); | |
6401 | if (abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
6402 | continue; | |
6403 | } | |
6404 | else | |
6405 | { | |
6406 | delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
6407 | delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
6408 | } | |
178c5d9c | 6409 | |
82641697 GM |
6410 | if (delta1 > delta2) |
6411 | return 0; | |
6412 | else if (delta1 < delta2) | |
6413 | return 1; | |
6414 | else | |
6415 | { | |
6416 | /* The difference may be equal because, e.g., the face | |
6417 | specifies `italic' but we have only `regular' and | |
6418 | `oblique'. Prefer `oblique' in this case. */ | |
6419 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6420 | && font1->numeric[xlfd_idx] > values[i] | |
6421 | && font2->numeric[xlfd_idx] < values[i]) | |
6422 | return 1; | |
6423 | } | |
6424 | } | |
6425 | } | |
178c5d9c | 6426 | |
a08332c0 GM |
6427 | if (avgwidth) |
6428 | { | |
6429 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
6430 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
6431 | if (delta1 > delta2) | |
6432 | return 0; | |
6433 | else if (delta1 < delta2) | |
6434 | return 1; | |
6435 | } | |
6436 | ||
10b7e56f KH |
6437 | if (! compare_pt_p) |
6438 | { | |
6439 | /* We prefer a real scalable font; i.e. not what autoscaled. */ | |
6440 | int auto_scaled_1 = (font1->numeric[XLFD_POINT_SIZE] == 0 | |
6441 | && font1->numeric[XLFD_RESY] > 0); | |
6442 | int auto_scaled_2 = (font2->numeric[XLFD_POINT_SIZE] == 0 | |
6443 | && font2->numeric[XLFD_RESY] > 0); | |
6444 | ||
6445 | if (auto_scaled_1 != auto_scaled_2) | |
6446 | return auto_scaled_2; | |
6447 | } | |
6448 | ||
a08332c0 | 6449 | return font1->registry_priority < font2->registry_priority; |
82641697 GM |
6450 | } |
6451 | ||
6452 | ||
82641697 GM |
6453 | /* Value is non-zero if FONT is an exact match for face attributes in |
6454 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6455 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6456 | with. */ | |
82641697 GM |
6457 | |
6458 | static int | |
a08332c0 | 6459 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6460 | int *specified; |
6461 | struct font_name *font; | |
a08332c0 | 6462 | int avgwidth; |
82641697 GM |
6463 | { |
6464 | int i; | |
178c5d9c | 6465 | |
a08332c0 | 6466 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6467 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6468 | break; | |
6469 | ||
a08332c0 GM |
6470 | return (i == DIM (font_sort_order) |
6471 | && (avgwidth <= 0 | |
6472 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6473 | } |
6474 | ||
6475 | ||
6476 | /* Value is the name of a scaled font, generated from scalable font | |
6477 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6478 | Value is allocated from heap. */ | |
6479 | ||
6480 | static char * | |
6481 | build_scalable_font_name (f, font, specified_pt) | |
6482 | struct frame *f; | |
6483 | struct font_name *font; | |
6484 | int specified_pt; | |
6485 | { | |
a7255152 | 6486 | char pixel_size[20]; |
82641697 GM |
6487 | int pixel_value; |
6488 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6489 | double pt; | |
6490 | ||
6491 | /* If scalable font is for a specific resolution, compute | |
6492 | the point size we must specify from the resolution of | |
6493 | the display and the specified resolution of the font. */ | |
6494 | if (font->numeric[XLFD_RESY] != 0) | |
6495 | { | |
6496 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
02a6375c | 6497 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 GM |
6498 | } |
6499 | else | |
6500 | { | |
6501 | pt = specified_pt; | |
02a6375c | 6502 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 | 6503 | } |
f70400f2 KH |
6504 | /* We may need a font of the different size. */ |
6505 | pixel_value *= font->rescale_ratio; | |
178c5d9c | 6506 | |
f70400f2 KH |
6507 | /* We should keep POINT_SIZE 0. Otherwise, X server can't open a |
6508 | font of the specified PIXEL_SIZE. */ | |
6509 | #if 0 | |
a7255152 SM |
6510 | { /* Set point size of the font. */ |
6511 | char point_size[20]; | |
6512 | sprintf (point_size, "%d", (int) pt); | |
6513 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6514 | font->numeric[XLFD_POINT_SIZE] = pt; | |
6515 | } | |
f70400f2 | 6516 | #endif |
178c5d9c | 6517 | |
82641697 GM |
6518 | /* Set pixel size. */ |
6519 | sprintf (pixel_size, "%d", pixel_value); | |
6520 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6521 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6522 | |
82641697 GM |
6523 | /* If font doesn't specify its resolution, use the |
6524 | resolution of the display. */ | |
6525 | if (font->numeric[XLFD_RESY] == 0) | |
6526 | { | |
6527 | char buffer[20]; | |
6528 | sprintf (buffer, "%d", (int) resy); | |
6529 | font->fields[XLFD_RESY] = buffer; | |
6530 | font->numeric[XLFD_RESY] = resy; | |
6531 | } | |
178c5d9c | 6532 | |
82641697 GM |
6533 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6534 | { | |
6535 | char buffer[20]; | |
6536 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6537 | sprintf (buffer, "%d", resx); | |
6538 | font->fields[XLFD_RESX] = buffer; | |
6539 | font->numeric[XLFD_RESX] = resx; | |
6540 | } | |
6541 | ||
6542 | return build_font_name (font); | |
6543 | } | |
6544 | ||
6545 | ||
6546 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6547 | can't run a Lisp function here since this function may be called | |
6548 | with input blocked. */ | |
6549 | ||
6550 | static int | |
702a1e8e | 6551 | may_use_scalable_font_p (font) |
53c208f6 | 6552 | const char *font; |
82641697 GM |
6553 | { |
6554 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6555 | return 1; | |
6556 | else if (CONSP (Vscalable_fonts_allowed)) | |
6557 | { | |
6558 | Lisp_Object tail, regexp; | |
178c5d9c | 6559 | |
82641697 GM |
6560 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6561 | { | |
6562 | regexp = XCAR (tail); | |
6563 | if (STRINGP (regexp) | |
702a1e8e | 6564 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6565 | return 1; |
6566 | } | |
6567 | } | |
178c5d9c | 6568 | |
82641697 GM |
6569 | return 0; |
6570 | } | |
6571 | ||
82641697 GM |
6572 | |
6573 | ||
2e6621ca GM |
6574 | /* Return the name of the best matching font for face attributes ATTRS |
6575 | in the array of font_name structures FONTS which contains NFONTS | |
6576 | elements. WIDTH_RATIO is a factor with which to multiply average | |
6577 | widths if ATTRS specifies such a width. | |
6578 | ||
6579 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
6580 | freed by this function. |
6581 | ||
6582 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6583 | indicate whether the resulting font should be drawn using overstrike | |
6584 | to simulate bold-face. */ | |
82641697 GM |
6585 | |
6586 | static char * | |
6ae2cd57 | 6587 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
6588 | struct frame *f; |
6589 | Lisp_Object *attrs; | |
6590 | struct font_name *fonts; | |
6591 | int nfonts; | |
2e6621ca | 6592 | int width_ratio; |
6ae2cd57 | 6593 | int *needs_overstrike; |
82641697 GM |
6594 | { |
6595 | char *font_name; | |
6596 | struct font_name *best; | |
334a2e2a | 6597 | int i, pt = 0; |
a08332c0 GM |
6598 | int specified[5]; |
6599 | int exact_p, avgwidth; | |
82641697 GM |
6600 | |
6601 | if (nfonts == 0) | |
6602 | return NULL; | |
6603 | ||
6604 | /* Make specified font attributes available in `specified', | |
6605 | indexed by sort order. */ | |
6606 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6607 | { | |
6608 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 6609 | |
82641697 GM |
6610 | if (xlfd_idx == XLFD_SWIDTH) |
6611 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
6612 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
6613 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6614 | else if (xlfd_idx == XLFD_WEIGHT) | |
6615 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6616 | else if (xlfd_idx == XLFD_SLANT) | |
6617 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6618 | else | |
6619 | abort (); | |
6620 | } | |
6621 | ||
a08332c0 GM |
6622 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
6623 | ? 0 | |
2e6621ca | 6624 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 6625 | |
82641697 | 6626 | exact_p = 0; |
178c5d9c | 6627 | |
6ae2cd57 MB |
6628 | if (needs_overstrike) |
6629 | *needs_overstrike = 0; | |
6630 | ||
6c1195ab | 6631 | best = NULL; |
82641697 GM |
6632 | |
6633 | /* Find the best match among the non-scalable fonts. */ | |
41a9b76e | 6634 | for (i = 0; i < nfonts; ++i) |
6c1195ab RS |
6635 | if (!font_scalable_p (fonts + i) |
6636 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) | |
6637 | { | |
6638 | best = fonts + i; | |
82641697 | 6639 | |
6c1195ab RS |
6640 | exact_p = exact_face_match_p (specified, best, avgwidth); |
6641 | if (exact_p) | |
6642 | break; | |
6643 | } | |
82641697 GM |
6644 | |
6645 | /* Unless we found an exact match among non-scalable fonts, see if | |
6646 | we can find a better match among scalable fonts. */ | |
6647 | if (!exact_p) | |
6648 | { | |
6649 | /* A scalable font is better if | |
6650 | ||
6651 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 6652 | |
82641697 GM |
6653 | 2. the best non-scalable font doesn't have the required |
6654 | point size, and the scalable fonts weight, slant, swidth | |
6655 | isn't worse. */ | |
6656 | ||
6657 | int non_scalable_has_exact_height_p; | |
6658 | ||
6659 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
6660 | non_scalable_has_exact_height_p = 1; | |
6661 | else | |
6662 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 6663 | |
82641697 GM |
6664 | for (i = 0; i < nfonts; ++i) |
6665 | if (font_scalable_p (fonts + i)) | |
6666 | { | |
6c1195ab | 6667 | if (better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 6668 | || (!non_scalable_has_exact_height_p |
a08332c0 | 6669 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
10b7e56f KH |
6670 | { |
6671 | non_scalable_has_exact_height_p = 1; | |
6672 | best = fonts + i; | |
6673 | } | |
82641697 GM |
6674 | } |
6675 | } | |
6676 | ||
6c1195ab RS |
6677 | /* We should have found SOME font. */ |
6678 | if (best == NULL) | |
6679 | abort (); | |
6680 | ||
ccd97b56 RS |
6681 | if (! exact_p && needs_overstrike) |
6682 | { | |
6683 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
6684 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
6685 | ||
6686 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
6687 | { | |
6688 | /* We want a bold font, but didn't get one; try to use | |
6689 | overstriking instead to simulate bold-face. However, | |
234b59d7 | 6690 | don't overstrike an already-bold font unless the |
ccd97b56 RS |
6691 | desired weight grossly exceeds the available weight. */ |
6692 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
234b59d7 | 6693 | *needs_overstrike = (want_weight - got_weight) > 2; |
ccd97b56 RS |
6694 | else |
6695 | *needs_overstrike = 1; | |
6696 | } | |
6697 | } | |
6698 | ||
82641697 GM |
6699 | if (font_scalable_p (best)) |
6700 | font_name = build_scalable_font_name (f, best, pt); | |
6701 | else | |
6702 | font_name = build_font_name (best); | |
178c5d9c | 6703 | |
82641697 GM |
6704 | /* Free font_name structures. */ |
6705 | free_font_names (fonts, nfonts); | |
178c5d9c | 6706 | |
82641697 GM |
6707 | return font_name; |
6708 | } | |
6709 | ||
6710 | ||
3cf80731 SM |
6711 | /* Get a list of matching fonts on frame F, considering FAMILY |
6712 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
6713 | |
6714 | FAMILY is the font family whose alternatives are considered. | |
6715 | ||
6716 | REGISTRY, if a string, specifies a font registry and encoding to | |
6717 | match. A value of nil means include fonts of any registry and | |
6718 | encoding. | |
177c0ea7 | 6719 | |
4a529c42 GM |
6720 | Return in *FONTS a pointer to a vector of font_name structures for |
6721 | the fonts matched. Value is the number of fonts found. */ | |
6722 | ||
6723 | static int | |
6724 | try_alternative_families (f, family, registry, fonts) | |
6725 | struct frame *f; | |
6726 | Lisp_Object family, registry; | |
6727 | struct font_name **fonts; | |
6728 | { | |
6729 | Lisp_Object alter; | |
6730 | int nfonts = 0; | |
6731 | ||
3cf80731 SM |
6732 | nfonts = font_list (f, Qnil, family, registry, fonts); |
6733 | if (nfonts == 0) | |
4a529c42 | 6734 | { |
3cf80731 SM |
6735 | /* Try alternative font families. */ |
6736 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
6737 | if (CONSP (alter)) | |
6738 | { | |
6739 | for (alter = XCDR (alter); | |
6740 | CONSP (alter) && nfonts == 0; | |
6741 | alter = XCDR (alter)) | |
6742 | { | |
6743 | if (STRINGP (XCAR (alter))) | |
6744 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
6745 | } | |
6746 | } | |
177c0ea7 | 6747 | |
f9a45bb3 KH |
6748 | /* Try all scalable fonts before giving up. */ |
6749 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 6750 | { |
331379bf | 6751 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
6752 | specbind (Qscalable_fonts_allowed, Qt); |
6753 | nfonts = try_alternative_families (f, family, registry, fonts); | |
6754 | unbind_to (count, Qnil); | |
4a529c42 GM |
6755 | } |
6756 | } | |
4a529c42 GM |
6757 | return nfonts; |
6758 | } | |
6759 | ||
6760 | ||
702a1e8e GM |
6761 | /* Get a list of matching fonts on frame F. |
6762 | ||
3cf80731 SM |
6763 | FAMILY, if a string, specifies a font family derived from the fontset. |
6764 | It is only used if the face does not specify any family in ATTRS or | |
6765 | if we cannot find any font of the face's family. | |
702a1e8e GM |
6766 | |
6767 | REGISTRY, if a string, specifies a font registry and encoding to | |
6768 | match. A value of nil means include fonts of any registry and | |
6769 | encoding. | |
177c0ea7 | 6770 | |
54580ab2 KH |
6771 | If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY. |
6772 | Otherwise, prefer FAMILY. | |
6773 | ||
702a1e8e GM |
6774 | Return in *FONTS a pointer to a vector of font_name structures for |
6775 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
6776 | |
6777 | static int | |
54580ab2 | 6778 | try_font_list (f, attrs, family, registry, fonts, prefer_face_family) |
82641697 GM |
6779 | struct frame *f; |
6780 | Lisp_Object *attrs; | |
702a1e8e | 6781 | Lisp_Object family, registry; |
82641697 | 6782 | struct font_name **fonts; |
54580ab2 | 6783 | int prefer_face_family; |
82641697 | 6784 | { |
4a529c42 | 6785 | int nfonts = 0; |
3cf80731 | 6786 | Lisp_Object face_family = attrs[LFACE_FAMILY_INDEX]; |
54580ab2 KH |
6787 | Lisp_Object try_family; |
6788 | ||
e21880c6 | 6789 | try_family = (prefer_face_family || NILP (family)) ? face_family : family; |
82641697 | 6790 | |
54580ab2 KH |
6791 | if (STRINGP (try_family)) |
6792 | nfonts = try_alternative_families (f, try_family, registry, fonts); | |
3cf80731 | 6793 | |
f00691a3 | 6794 | #ifdef MAC_OS |
17d0f03b | 6795 | if (nfonts == 0 && STRINGP (try_family) && STRINGP (registry)) |
27d744ae YM |
6796 | { |
6797 | if (xstricmp (SDATA (registry), "mac-roman") == 0) | |
6798 | /* When realizing the default face and a font spec does not | |
6799 | matched exactly, Emacs looks for ones with the same registry | |
6800 | as the default font. On the Mac, this is mac-roman, which | |
6801 | does not work if the family is -etl-fixed, e.g. The | |
6802 | following widens the choices and fixes that problem. */ | |
6803 | nfonts = try_alternative_families (f, try_family, Qnil, fonts); | |
6804 | else if (SBYTES (try_family) > 0 | |
6805 | && SREF (try_family, SBYTES (try_family) - 1) != '*') | |
6806 | /* Some Central European/Cyrillic font family names have the | |
6807 | Roman counterpart name as their prefix. */ | |
6808 | nfonts = try_alternative_families (f, concat2 (try_family, | |
6809 | build_string ("*")), | |
6810 | registry, fonts); | |
6811 | } | |
f00691a3 AC |
6812 | #endif |
6813 | ||
e21880c6 | 6814 | if (EQ (try_family, family)) |
54580ab2 KH |
6815 | family = face_family; |
6816 | ||
6817 | if (nfonts == 0 && STRINGP (family)) | |
3cf80731 | 6818 | nfonts = try_alternative_families (f, family, registry, fonts); |
178c5d9c | 6819 | |
3cf80731 | 6820 | /* Try font family of the default face or "fixed". */ |
4a529c42 | 6821 | if (nfonts == 0) |
82641697 | 6822 | { |
3cf80731 SM |
6823 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6824 | if (default_face) | |
6825 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
6826 | else | |
6827 | family = build_string ("fixed"); | |
4a529c42 | 6828 | nfonts = font_list (f, Qnil, family, registry, fonts); |
82641697 | 6829 | } |
177c0ea7 | 6830 | |
3cf80731 SM |
6831 | /* Try any family with the given registry. */ |
6832 | if (nfonts == 0) | |
6aa1813f | 6833 | nfonts = try_alternative_families (f, Qnil, registry, fonts); |
82641697 GM |
6834 | |
6835 | return nfonts; | |
6836 | } | |
6837 | ||
82641697 | 6838 | |
39506348 KH |
6839 | /* Return the fontset id of the base fontset name or alias name given |
6840 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
6841 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
6842 | |
6843 | static int | |
39506348 | 6844 | face_fontset (attrs) |
82641697 GM |
6845 | Lisp_Object *attrs; |
6846 | { | |
39506348 | 6847 | Lisp_Object name; |
178c5d9c | 6848 | |
39506348 KH |
6849 | name = attrs[LFACE_FONT_INDEX]; |
6850 | if (!STRINGP (name)) | |
6851 | return -1; | |
6852 | return fs_query_fontset (name, 0); | |
82641697 GM |
6853 | } |
6854 | ||
6855 | ||
39506348 KH |
6856 | /* Choose a name of font to use on frame F to display character C with |
6857 | Lisp face attributes specified by ATTRS. The font name is | |
6858 | determined by the font-related attributes in ATTRS and the name | |
6859 | pattern for C in FONTSET. Value is the font name which is | |
6860 | allocated from the heap and must be freed by the caller, or NULL if | |
6861 | we can get no information about the font name of C. It is assured | |
6862 | that we always get some information for a single byte | |
6ae2cd57 MB |
6863 | character. |
6864 | ||
6865 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6866 | indicate whether the resulting font should be drawn using overstrike | |
6867 | to simulate bold-face. */ | |
82641697 GM |
6868 | |
6869 | static char * | |
6ae2cd57 | 6870 | choose_face_font (f, attrs, fontset, c, needs_overstrike) |
82641697 GM |
6871 | struct frame *f; |
6872 | Lisp_Object *attrs; | |
39506348 | 6873 | int fontset, c; |
6ae2cd57 | 6874 | int *needs_overstrike; |
82641697 | 6875 | { |
39506348 | 6876 | Lisp_Object pattern; |
82641697 | 6877 | char *font_name = NULL; |
82641697 | 6878 | struct font_name *fonts; |
2e6621ca | 6879 | int nfonts, width_ratio; |
178c5d9c | 6880 | |
774666fb MB |
6881 | if (needs_overstrike) |
6882 | *needs_overstrike = 0; | |
6883 | ||
39506348 KH |
6884 | /* Get (foundry and) family name and registry (and encoding) name of |
6885 | a font for C. */ | |
6886 | pattern = fontset_font_pattern (f, fontset, c); | |
6887 | if (NILP (pattern)) | |
6888 | { | |
6889 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
6890 | return NULL; | |
6891 | } | |
177c0ea7 | 6892 | |
39506348 KH |
6893 | /* If what we got is a name pattern, return it. */ |
6894 | if (STRINGP (pattern)) | |
d5db4077 | 6895 | return xstrdup (SDATA (pattern)); |
82641697 | 6896 | |
178c5d9c | 6897 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 6898 | best match for the specified face attributes from it. */ |
54580ab2 KH |
6899 | nfonts = try_font_list (f, attrs, XCAR (pattern), XCDR (pattern), &fonts, |
6900 | (SINGLE_BYTE_CHAR_P (c) | |
6901 | || CHAR_CHARSET (c) == charset_latin_iso8859_1)); | |
2e6621ca GM |
6902 | width_ratio = (SINGLE_BYTE_CHAR_P (c) |
6903 | ? 1 | |
6904 | : CHARSET_WIDTH (CHAR_CHARSET (c))); | |
6ae2cd57 MB |
6905 | font_name = best_matching_font (f, attrs, fonts, nfonts, width_ratio, |
6906 | needs_overstrike); | |
82641697 GM |
6907 | return font_name; |
6908 | } | |
6909 | ||
c3cee013 | 6910 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6911 | |
6912 | ||
6913 | \f | |
6914 | /*********************************************************************** | |
6915 | Face Realization | |
6916 | ***********************************************************************/ | |
6917 | ||
6918 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
6919 | of F don't contain enough information needed to realize the default | |
6920 | face. */ | |
6921 | ||
6922 | static int | |
6923 | realize_basic_faces (f) | |
6924 | struct frame *f; | |
6925 | { | |
6926 | int success_p = 0; | |
331379bf | 6927 | int count = SPECPDL_INDEX (); |
17e8204b | 6928 | |
04386463 GM |
6929 | /* Block input here so that we won't be surprised by an X expose |
6930 | event, for instance, without having the faces set up. */ | |
17e8204b | 6931 | BLOCK_INPUT; |
eeffb293 | 6932 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 6933 | |
82641697 GM |
6934 | if (realize_default_face (f)) |
6935 | { | |
92610620 | 6936 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 6937 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 6938 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 6939 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 6940 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
6941 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
6942 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
6943 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
6944 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 6945 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 6946 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 6947 | |
b5de343d | 6948 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 6949 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 6950 | { |
ceeda019 | 6951 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 6952 | #ifdef USE_X_TOOLKIT |
bce72079 | 6953 | x_update_menu_appearance (f); |
a03ad468 | 6954 | #endif |
563f68f1 | 6955 | } |
177c0ea7 | 6956 | |
82641697 GM |
6957 | success_p = 1; |
6958 | } | |
6959 | ||
eeffb293 | 6960 | unbind_to (count, Qnil); |
17e8204b | 6961 | UNBLOCK_INPUT; |
82641697 GM |
6962 | return success_p; |
6963 | } | |
6964 | ||
6965 | ||
6966 | /* Realize the default face on frame F. If the face is not fully | |
6967 | specified, make it fully-specified. Attributes of the default face | |
6968 | that are not explicitly specified are taken from frame parameters. */ | |
6969 | ||
6970 | static int | |
6971 | realize_default_face (f) | |
6972 | struct frame *f; | |
6973 | { | |
6974 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6975 | Lisp_Object lface; | |
6976 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6977 | Lisp_Object frame_font; |
6978 | struct face *face; | |
82641697 GM |
6979 | |
6980 | /* If the `default' face is not yet known, create it. */ | |
6981 | lface = lface_from_face_name (f, Qdefault, 0); | |
6982 | if (NILP (lface)) | |
07446869 GM |
6983 | { |
6984 | Lisp_Object frame; | |
6985 | XSETFRAME (frame, f); | |
6986 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
6987 | } | |
6988 | ||
82641697 | 6989 | |
c3cee013 JR |
6990 | #ifdef HAVE_WINDOW_SYSTEM |
6991 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
6992 | { |
6993 | /* Set frame_font to the value of the `font' frame parameter. */ | |
6994 | frame_font = Fassq (Qfont, f->param_alist); | |
6995 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
6996 | frame_font = XCDR (frame_font); | |
a5f696ac JD |
6997 | set_lface_from_font_name (f, lface, frame_font, |
6998 | f->default_face_done_p, 1); | |
6999 | f->default_face_done_p = 1; | |
82641697 | 7000 | } |
c3cee013 | 7001 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 7002 | |
44747bd0 | 7003 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
7004 | { |
7005 | LFACE_FAMILY (lface) = build_string ("default"); | |
7006 | LFACE_SWIDTH (lface) = Qnormal; | |
7007 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
7008 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
7009 | LFACE_WEIGHT (lface) = Qnormal; | |
7010 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
7011 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 7012 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 7013 | } |
178c5d9c | 7014 | |
82641697 GM |
7015 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
7016 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 7017 | |
82641697 GM |
7018 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
7019 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 7020 | |
82641697 GM |
7021 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
7022 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 7023 | |
82641697 GM |
7024 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
7025 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 7026 | |
82641697 GM |
7027 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
7028 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 7029 | |
82641697 GM |
7030 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
7031 | { | |
7032 | /* This function is called so early that colors are not yet | |
7033 | set in the frame parameter list. */ | |
7034 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 7035 | |
82641697 GM |
7036 | if (CONSP (color) && STRINGP (XCDR (color))) |
7037 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 7038 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7039 | return 0; |
e689ec06 | 7040 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7041 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 7042 | else |
82641697 GM |
7043 | abort (); |
7044 | } | |
178c5d9c | 7045 | |
82641697 GM |
7046 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
7047 | { | |
7048 | /* This function is called so early that colors are not yet | |
7049 | set in the frame parameter list. */ | |
7050 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
7051 | if (CONSP (color) && STRINGP (XCDR (color))) | |
7052 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 7053 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7054 | return 0; |
e689ec06 | 7055 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7056 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 7057 | else |
82641697 GM |
7058 | abort (); |
7059 | } | |
178c5d9c | 7060 | |
82641697 GM |
7061 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
7062 | LFACE_STIPPLE (lface) = Qnil; | |
7063 | ||
7064 | /* Realize the face; it must be fully-specified now. */ | |
7065 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
7066 | check_lface (lface); | |
7067 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 7068 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
4da9c136 KH |
7069 | |
7070 | #ifdef HAVE_WINDOW_SYSTEM | |
41a9b76e | 7071 | #ifdef HAVE_X_WINDOWS |
4da9c136 | 7072 | if (face->font != FRAME_FONT (f)) |
73158a39 CY |
7073 | { |
7074 | /* This can happen when making a frame on a display that does | |
7075 | not support the default font. */ | |
7076 | if (!face->font) | |
7077 | return 0; | |
7078 | ||
7079 | /* Otherwise, the font specified for the frame was not | |
7080 | acceptable as a font for the default face (perhaps because | |
7081 | auto-scaled fonts are rejected), so we must adjust the frame | |
7082 | font. */ | |
7083 | x_set_font (f, build_string (face->font_name), Qnil); | |
7084 | } | |
4da9c136 KH |
7085 | #endif /* HAVE_X_WINDOWS */ |
7086 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7087 | return 1; |
7088 | } | |
7089 | ||
7090 | ||
7091 | /* Realize basic faces other than the default face in face cache C. | |
7092 | SYMBOL is the face name, ID is the face id the realized face must | |
7093 | have. The default face must have been realized already. */ | |
7094 | ||
7095 | static void | |
7096 | realize_named_face (f, symbol, id) | |
7097 | struct frame *f; | |
7098 | Lisp_Object symbol; | |
7099 | int id; | |
7100 | { | |
7101 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7102 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
7103 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7104 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
7105 | struct face *new_face; | |
7106 | ||
7107 | /* The default face must exist and be fully specified. */ | |
7108 | get_lface_attributes (f, Qdefault, attrs, 1); | |
7109 | check_lface_attrs (attrs); | |
7110 | xassert (lface_fully_specified_p (attrs)); | |
7111 | ||
7112 | /* If SYMBOL isn't know as a face, create it. */ | |
7113 | if (NILP (lface)) | |
7114 | { | |
7115 | Lisp_Object frame; | |
7116 | XSETFRAME (frame, f); | |
7117 | lface = Finternal_make_lisp_face (symbol, frame); | |
7118 | } | |
7119 | ||
7120 | /* Merge SYMBOL's face with the default face. */ | |
7121 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
a0a23346 | 7122 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
82641697 GM |
7123 | |
7124 | /* Realize the face. */ | |
39506348 | 7125 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
7126 | } |
7127 | ||
7128 | ||
7129 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 7130 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
7131 | BASE_FACE is a face that has the same attributes. Otherwise, |
7132 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
7133 | ID of face to remove before caching the new face. Value is a | |
7134 | pointer to the newly created realized face. */ | |
82641697 GM |
7135 | |
7136 | static struct face * | |
39506348 KH |
7137 | realize_face (cache, attrs, c, base_face, former_face_id) |
7138 | struct face_cache *cache; | |
82641697 | 7139 | Lisp_Object *attrs; |
39506348 KH |
7140 | int c; |
7141 | struct face *base_face; | |
7142 | int former_face_id; | |
82641697 GM |
7143 | { |
7144 | struct face *face; | |
178c5d9c | 7145 | |
82641697 | 7146 | /* LFACE must be fully specified. */ |
39506348 | 7147 | xassert (cache != NULL); |
82641697 GM |
7148 | check_lface_attrs (attrs); |
7149 | ||
39506348 KH |
7150 | if (former_face_id >= 0 && cache->used > former_face_id) |
7151 | { | |
7152 | /* Remove the former face. */ | |
7153 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
7154 | uncache_face (cache, former_face); | |
7155 | free_realized_face (cache->f, former_face); | |
7156 | } | |
7157 | ||
7158 | if (FRAME_WINDOW_P (cache->f)) | |
7159 | face = realize_x_face (cache, attrs, c, base_face); | |
e689ec06 | 7160 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
39506348 | 7161 | face = realize_tty_face (cache, attrs, c); |
82641697 GM |
7162 | else |
7163 | abort (); | |
7164 | ||
39506348 KH |
7165 | /* Insert the new face. */ |
7166 | cache_face (cache, face, lface_hash (attrs)); | |
7167 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 7168 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
7169 | load_face_font (cache->f, face, c); |
7170 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7171 | return face; |
7172 | } | |
7173 | ||
7174 | ||
7175 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 7176 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
7177 | a multibyte character, BASE_FACE is a face that has the same |
7178 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
7179 | doesn't share font with the default face, a fontname is allocated | |
7180 | from the heap and set in `font_name' of the new face, but it is not | |
7181 | yet loaded here. Value is a pointer to the newly created realized | |
7182 | face. */ | |
82641697 GM |
7183 | |
7184 | static struct face * | |
39506348 KH |
7185 | realize_x_face (cache, attrs, c, base_face) |
7186 | struct face_cache *cache; | |
82641697 | 7187 | Lisp_Object *attrs; |
39506348 KH |
7188 | int c; |
7189 | struct face *base_face; | |
82641697 | 7190 | { |
7d603e3f | 7191 | struct face *face = NULL; |
c3cee013 | 7192 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 7193 | struct face *default_face; |
78d2079c | 7194 | struct frame *f; |
82641697 | 7195 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 7196 | |
39506348 KH |
7197 | xassert (FRAME_WINDOW_P (cache->f)); |
7198 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 7199 | || base_face); |
82641697 GM |
7200 | |
7201 | /* Allocate a new realized face. */ | |
39506348 KH |
7202 | face = make_realized_face (attrs); |
7203 | ||
7204 | f = cache->f; | |
7205 | ||
7206 | /* If C is a multibyte character, we share all face attirbutes with | |
7207 | BASE_FACE including the realized fontset. But, we must load a | |
7208 | different font. */ | |
7209 | if (!SINGLE_BYTE_CHAR_P (c)) | |
7210 | { | |
7211 | bcopy (base_face, face, sizeof *face); | |
7212 | face->gc = 0; | |
e911049b GM |
7213 | |
7214 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
28a072fe | 7215 | face->colors_copied_bitwise_p = 1; |
178c5d9c | 7216 | |
e911049b GM |
7217 | /* to force realize_face to load font */ |
7218 | face->font = NULL; | |
39506348 KH |
7219 | return face; |
7220 | } | |
7221 | ||
7222 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
7223 | |
7224 | /* Determine the font to use. Most of the time, the font will be | |
7225 | the same as the font of the default face, so try that first. */ | |
7226 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7227 | if (default_face | |
39506348 | 7228 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
7229 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
7230 | { | |
7231 | face->font = default_face->font; | |
7232 | face->fontset = default_face->fontset; | |
7233 | face->font_info_id = default_face->font_info_id; | |
7234 | face->font_name = default_face->font_name; | |
39506348 | 7235 | face->ascii_face = face; |
82641697 | 7236 | |
39506348 KH |
7237 | /* But, as we can't share the fontset, make a new realized |
7238 | fontset that has the same base fontset as of the default | |
7239 | face. */ | |
7240 | face->fontset | |
7241 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
7242 | } |
7243 | else | |
7244 | { | |
39506348 | 7245 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
7246 | the base of a new realized fontset. Otherwise, use the same |
7247 | base fontset as of the default face. The base determines | |
7248 | registry and encoding of a font. It may also determine | |
7249 | foundry and family. The other fields of font name pattern | |
7250 | are constructed from ATTRS. */ | |
7251 | int fontset = face_fontset (attrs); | |
7252 | ||
178c5d9c | 7253 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
7254 | fontset = default_face->fontset; |
7255 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 7256 | face->font = NULL; /* to force realize_face to load font */ |
82641697 GM |
7257 | } |
7258 | ||
7259 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 7260 | |
82641697 | 7261 | load_face_colors (f, face, attrs); |
660ed669 | 7262 | |
82641697 GM |
7263 | /* Set up box. */ |
7264 | box = attrs[LFACE_BOX_INDEX]; | |
7265 | if (STRINGP (box)) | |
cb637678 | 7266 | { |
82641697 GM |
7267 | /* A simple box of line width 1 drawn in color given by |
7268 | the string. */ | |
7269 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
7270 | LFACE_BOX_INDEX); | |
7271 | face->box = FACE_SIMPLE_BOX; | |
7272 | face->box_line_width = 1; | |
cb637678 | 7273 | } |
82641697 | 7274 | else if (INTEGERP (box)) |
42120bc7 | 7275 | { |
82641697 GM |
7276 | /* Simple box of specified line width in foreground color of the |
7277 | face. */ | |
89624b8b | 7278 | xassert (XINT (box) != 0); |
82641697 | 7279 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 7280 | face->box_line_width = XINT (box); |
82641697 GM |
7281 | face->box_color = face->foreground; |
7282 | face->box_color_defaulted_p = 1; | |
7283 | } | |
7284 | else if (CONSP (box)) | |
7285 | { | |
7286 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
7287 | being one of `raised' or `sunken'. */ | |
7288 | face->box = FACE_SIMPLE_BOX; | |
7289 | face->box_color = face->foreground; | |
7290 | face->box_color_defaulted_p = 1; | |
7291 | face->box_line_width = 1; | |
7292 | ||
7293 | while (CONSP (box)) | |
42120bc7 | 7294 | { |
82641697 GM |
7295 | Lisp_Object keyword, value; |
7296 | ||
7297 | keyword = XCAR (box); | |
7298 | box = XCDR (box); | |
7299 | ||
7300 | if (!CONSP (box)) | |
7301 | break; | |
7302 | value = XCAR (box); | |
7303 | box = XCDR (box); | |
7304 | ||
7305 | if (EQ (keyword, QCline_width)) | |
7306 | { | |
89624b8b KH |
7307 | if (INTEGERP (value) && XINT (value) != 0) |
7308 | face->box_line_width = XINT (value); | |
82641697 GM |
7309 | } |
7310 | else if (EQ (keyword, QCcolor)) | |
7311 | { | |
7312 | if (STRINGP (value)) | |
7313 | { | |
7314 | face->box_color = load_color (f, face, value, | |
7315 | LFACE_BOX_INDEX); | |
7316 | face->use_box_color_for_shadows_p = 1; | |
7317 | } | |
7318 | } | |
7319 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 7320 | { |
82641697 GM |
7321 | if (EQ (value, Qreleased_button)) |
7322 | face->box = FACE_RAISED_BOX; | |
7323 | else if (EQ (value, Qpressed_button)) | |
7324 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 7325 | } |
42120bc7 RS |
7326 | } |
7327 | } | |
195f798e | 7328 | |
82641697 | 7329 | /* Text underline, overline, strike-through. */ |
178c5d9c | 7330 | |
82641697 | 7331 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 7332 | { |
82641697 GM |
7333 | /* Use default color (same as foreground color). */ |
7334 | face->underline_p = 1; | |
7335 | face->underline_defaulted_p = 1; | |
7336 | face->underline_color = 0; | |
7337 | } | |
7338 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 7339 | { |
82641697 GM |
7340 | /* Use specified color. */ |
7341 | face->underline_p = 1; | |
7342 | face->underline_defaulted_p = 0; | |
7343 | face->underline_color | |
7344 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
7345 | LFACE_UNDERLINE_INDEX); | |
195f798e | 7346 | } |
82641697 | 7347 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 7348 | { |
82641697 GM |
7349 | face->underline_p = 0; |
7350 | face->underline_defaulted_p = 0; | |
7351 | face->underline_color = 0; | |
7b00de84 JB |
7352 | } |
7353 | ||
82641697 GM |
7354 | overline = attrs[LFACE_OVERLINE_INDEX]; |
7355 | if (STRINGP (overline)) | |
cb637678 | 7356 | { |
82641697 GM |
7357 | face->overline_color |
7358 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
7359 | LFACE_OVERLINE_INDEX); | |
7360 | face->overline_p = 1; | |
cb637678 | 7361 | } |
82641697 | 7362 | else if (EQ (overline, Qt)) |
cb637678 | 7363 | { |
82641697 GM |
7364 | face->overline_color = face->foreground; |
7365 | face->overline_color_defaulted_p = 1; | |
7366 | face->overline_p = 1; | |
cb637678 JB |
7367 | } |
7368 | ||
82641697 GM |
7369 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
7370 | if (STRINGP (strike_through)) | |
7371 | { | |
7372 | face->strike_through_color | |
7373 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
7374 | LFACE_STRIKE_THROUGH_INDEX); | |
7375 | face->strike_through_p = 1; | |
7376 | } | |
7377 | else if (EQ (strike_through, Qt)) | |
7378 | { | |
7379 | face->strike_through_color = face->foreground; | |
7380 | face->strike_through_color_defaulted_p = 1; | |
7381 | face->strike_through_p = 1; | |
7382 | } | |
867dd159 | 7383 | |
82641697 GM |
7384 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
7385 | if (!NILP (stipple)) | |
7386 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 7387 | |
39506348 | 7388 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c3cee013 | 7389 | #endif /* HAVE_WINDOW_SYSTEM */ |
7d603e3f | 7390 | return face; |
660ed669 JB |
7391 | } |
7392 | ||
729425b1 | 7393 | |
ae4b4ba5 GM |
7394 | /* Map a specified color of face FACE on frame F to a tty color index. |
7395 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
7396 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
7397 | default foreground/background colors. */ | |
7398 | ||
7399 | static void | |
7400 | map_tty_color (f, face, idx, defaulted) | |
7401 | struct frame *f; | |
7402 | struct face *face; | |
7403 | enum lface_attribute_index idx; | |
7404 | int *defaulted; | |
7405 | { | |
7406 | Lisp_Object frame, color, def; | |
7407 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
7408 | unsigned long default_pixel, default_other_pixel, pixel; | |
7409 | ||
7410 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
7411 | ||
7412 | if (foreground_p) | |
7413 | { | |
7414 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7415 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7416 | } | |
7417 | else | |
7418 | { | |
7419 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7420 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7421 | } | |
177c0ea7 | 7422 | |
ae4b4ba5 GM |
7423 | XSETFRAME (frame, f); |
7424 | color = face->lface[idx]; | |
177c0ea7 | 7425 | |
ae4b4ba5 | 7426 | if (STRINGP (color) |
d5db4077 | 7427 | && SCHARS (color) |
ae4b4ba5 GM |
7428 | && CONSP (Vtty_defined_color_alist) |
7429 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
7430 | CONSP (def))) | |
7431 | { | |
7432 | /* Associations in tty-defined-color-alist are of the form | |
7433 | (NAME INDEX R G B). We need the INDEX part. */ | |
7434 | pixel = XINT (XCAR (XCDR (def))); | |
7435 | } | |
7436 | ||
7437 | if (pixel == default_pixel && STRINGP (color)) | |
7438 | { | |
7439 | pixel = load_color (f, face, color, idx); | |
7440 | ||
7441 | #if defined (MSDOS) || defined (WINDOWSNT) | |
7442 | /* If the foreground of the default face is the default color, | |
7443 | use the foreground color defined by the frame. */ | |
7444 | #ifdef MSDOS | |
7445 | if (FRAME_MSDOS_P (f)) | |
7446 | { | |
7447 | #endif /* MSDOS */ | |
7448 | if (pixel == default_pixel | |
7449 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
7450 | { | |
7451 | if (foreground_p) | |
7452 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7453 | else | |
7454 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7455 | face->lface[idx] = tty_color_name (f, pixel); | |
7456 | *defaulted = 1; | |
7457 | } | |
7458 | else if (pixel == default_other_pixel) | |
7459 | { | |
7460 | if (foreground_p) | |
7461 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7462 | else | |
7463 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7464 | face->lface[idx] = tty_color_name (f, pixel); | |
7465 | *defaulted = 1; | |
7466 | } | |
7467 | #ifdef MSDOS | |
7468 | } | |
7469 | #endif | |
7470 | #endif /* MSDOS or WINDOWSNT */ | |
7471 | } | |
7472 | ||
7473 | if (foreground_p) | |
7474 | face->foreground = pixel; | |
7475 | else | |
7476 | face->background = pixel; | |
7477 | } | |
7478 | ||
7479 | ||
82641697 | 7480 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
7481 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
7482 | pointer to the newly created realized face. */ | |
a8517066 | 7483 | |
82641697 | 7484 | static struct face * |
39506348 KH |
7485 | realize_tty_face (cache, attrs, c) |
7486 | struct face_cache *cache; | |
82641697 | 7487 | Lisp_Object *attrs; |
39506348 | 7488 | int c; |
82641697 GM |
7489 | { |
7490 | struct face *face; | |
7491 | int weight, slant; | |
2d764c78 | 7492 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7493 | struct frame *f = cache->f; |
729425b1 | 7494 | |
82641697 | 7495 | /* Frame must be a termcap frame. */ |
e689ec06 | 7496 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7497 | |
82641697 | 7498 | /* Allocate a new realized face. */ |
39506348 | 7499 | face = make_realized_face (attrs); |
e689ec06 | 7500 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 7501 | |
178c5d9c | 7502 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
7503 | dimmed text because we want italic text to appear differently |
7504 | and because dimmed text is probably used infrequently. */ | |
7505 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7506 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7507 | ||
7508 | if (weight > XLFD_WEIGHT_MEDIUM) | |
7509 | face->tty_bold_p = 1; | |
7510 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
7511 | face->tty_dim_p = 1; | |
7512 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
7513 | face->tty_underline_p = 1; | |
7514 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
7515 | face->tty_reverse_p = 1; | |
7516 | ||
7517 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
7518 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
7519 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 7520 | |
2d764c78 EZ |
7521 | /* Swap colors if face is inverse-video. If the colors are taken |
7522 | from the frame colors, they are already inverted, since the | |
7523 | frame-creation function calls x-handle-reverse-video. */ | |
7524 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
7525 | { |
7526 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
7527 | face->foreground = face->background; |
7528 | face->background = tem; | |
7529 | } | |
44747bd0 | 7530 | |
a4a76b61 GM |
7531 | if (tty_suppress_bold_inverse_default_colors_p |
7532 | && face->tty_bold_p | |
7533 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
7534 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
7535 | face->tty_bold_p = 0; | |
7536 | ||
82641697 | 7537 | return face; |
729425b1 | 7538 | } |
867dd159 | 7539 | |
82641697 | 7540 | |
a4a76b61 GM |
7541 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
7542 | Ftty_suppress_bold_inverse_default_colors, | |
7543 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 7544 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
7545 | SUPPRESS non-nil means suppress it. |
7546 | This affects bold faces on TTYs whose foreground is the default background | |
7547 | color of the display and whose background is the default foreground color. | |
7548 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
7549 | is non-nil. */) |
7550 | (suppress) | |
a4a76b61 GM |
7551 | Lisp_Object suppress; |
7552 | { | |
7553 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
7554 | ++face_change_count; | |
7555 | return suppress; | |
7556 | } | |
7557 | ||
7558 | ||
82641697 GM |
7559 | \f |
7560 | /*********************************************************************** | |
7561 | Computing Faces | |
7562 | ***********************************************************************/ | |
7563 | ||
7564 | /* Return the ID of the face to use to display character CH with face | |
7565 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
7566 | |
7567 | int | |
82641697 | 7568 | compute_char_face (f, ch, prop) |
2e16580f | 7569 | struct frame *f; |
82641697 GM |
7570 | int ch; |
7571 | Lisp_Object prop; | |
2e16580f | 7572 | { |
82641697 | 7573 | int face_id; |
39506348 KH |
7574 | |
7575 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 7576 | ch = 0; |
178c5d9c | 7577 | |
82641697 | 7578 | if (NILP (prop)) |
39506348 KH |
7579 | { |
7580 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7581 | face_id = FACE_FOR_CHAR (f, face, ch); | |
7582 | } | |
82641697 | 7583 | else |
2e16580f | 7584 | { |
82641697 GM |
7585 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
7586 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7587 | bcopy (default_face->lface, attrs, sizeof attrs); | |
a0a23346 | 7588 | merge_face_ref (f, prop, attrs, 1, 0); |
39506348 | 7589 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
7590 | } |
7591 | ||
82641697 | 7592 | return face_id; |
2e16580f | 7593 | } |
bc0db68d | 7594 | |
82641697 GM |
7595 | /* Return the face ID associated with buffer position POS for |
7596 | displaying ASCII characters. Return in *ENDPTR the position at | |
7597 | which a different face is needed, as far as text properties and | |
7598 | overlays are concerned. W is a window displaying current_buffer. | |
7599 | ||
7600 | REGION_BEG, REGION_END delimit the region, so it can be | |
7601 | highlighted. | |
6f134486 | 7602 | |
82641697 GM |
7603 | LIMIT is a position not to scan beyond. That is to limit the time |
7604 | this function can take. | |
7605 | ||
7606 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
7607 | ||
39506348 | 7608 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 7609 | |
cb637678 | 7610 | int |
82641697 GM |
7611 | face_at_buffer_position (w, pos, region_beg, region_end, |
7612 | endptr, limit, mouse) | |
f211082d | 7613 | struct window *w; |
7b7739b1 | 7614 | int pos; |
bc0db68d | 7615 | int region_beg, region_end; |
7b7739b1 | 7616 | int *endptr; |
b349f4fb | 7617 | int limit; |
6f134486 | 7618 | int mouse; |
7b7739b1 | 7619 | { |
82641697 GM |
7620 | struct frame *f = XFRAME (w->frame); |
7621 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 7622 | Lisp_Object prop, position; |
82641697 | 7623 | int i, noverlays; |
7b7739b1 | 7624 | Lisp_Object *overlay_vec; |
f211082d | 7625 | Lisp_Object frame; |
f6b98e0b | 7626 | int endpos; |
82641697 GM |
7627 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
7628 | Lisp_Object limit1, end; | |
7629 | struct face *default_face; | |
f6b98e0b JB |
7630 | |
7631 | /* W must display the current buffer. We could write this function | |
7632 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 7633 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 7634 | |
ac22a6c4 | 7635 | XSETFRAME (frame, f); |
82641697 | 7636 | XSETFASTINT (position, pos); |
7b7739b1 | 7637 | |
f6b98e0b | 7638 | endpos = ZV; |
bc0db68d RS |
7639 | if (pos < region_beg && region_beg < endpos) |
7640 | endpos = region_beg; | |
f6b98e0b | 7641 | |
82641697 GM |
7642 | /* Get the `face' or `mouse_face' text property at POS, and |
7643 | determine the next position at which the property changes. */ | |
6f134486 | 7644 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
7645 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
7646 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
7647 | if (INTEGERP (end)) | |
7648 | endpos = XINT (end); | |
6f134486 | 7649 | |
82641697 | 7650 | /* Look at properties from overlays. */ |
b6d40e46 | 7651 | { |
f6b98e0b | 7652 | int next_overlay; |
b6d40e46 | 7653 | |
0bc90bba | 7654 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
7655 | if (next_overlay < endpos) |
7656 | endpos = next_overlay; | |
b6d40e46 JB |
7657 | } |
7658 | ||
7659 | *endptr = endpos; | |
7b7739b1 | 7660 | |
82641697 | 7661 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 7662 | |
82641697 GM |
7663 | /* Optimize common cases where we can use the default face. */ |
7664 | if (noverlays == 0 | |
7665 | && NILP (prop) | |
39506348 | 7666 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
7667 | return DEFAULT_FACE_ID; |
7668 | ||
7669 | /* Begin with attributes from the default face. */ | |
7670 | bcopy (default_face->lface, attrs, sizeof attrs); | |
7671 | ||
7672 | /* Merge in attributes specified via text properties. */ | |
7673 | if (!NILP (prop)) | |
a0a23346 | 7674 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
7675 | |
7676 | /* Now merge the overlay data. */ | |
18195655 | 7677 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 7678 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 7679 | { |
18195655 RS |
7680 | Lisp_Object oend; |
7681 | int oendpos; | |
7682 | ||
7683 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 7684 | if (!NILP (prop)) |
a0a23346 | 7685 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
7686 | |
7687 | oend = OVERLAY_END (overlay_vec[i]); | |
7688 | oendpos = OVERLAY_POSITION (oend); | |
7689 | if (oendpos < endpos) | |
7690 | endpos = oendpos; | |
7691 | } | |
7692 | ||
82641697 | 7693 | /* If in the region, merge in the region face. */ |
18195655 RS |
7694 | if (pos >= region_beg && pos < region_end) |
7695 | { | |
a0a23346 | 7696 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 7697 | |
18195655 RS |
7698 | if (region_end < endpos) |
7699 | endpos = region_end; | |
18195655 RS |
7700 | } |
7701 | ||
7702 | *endptr = endpos; | |
7703 | ||
82641697 | 7704 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7705 | or realize a new one for ASCII characters. */ |
7706 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
7707 | } |
7708 | ||
a193ecf1 RS |
7709 | /* Return the face ID at buffer position POS for displaying ASCII |
7710 | characters associated with overlay strings for overlay OVERLAY. | |
7711 | ||
7712 | Like face_at_buffer_position except for OVERLAY. Currently it | |
7713 | simply disregards the `face' properties of all overlays. */ | |
03e1d617 RS |
7714 | |
7715 | int | |
a193ecf1 RS |
7716 | face_for_overlay_string (w, pos, region_beg, region_end, |
7717 | endptr, limit, mouse, overlay) | |
03e1d617 RS |
7718 | struct window *w; |
7719 | int pos; | |
7720 | int region_beg, region_end; | |
7721 | int *endptr; | |
7722 | int limit; | |
7723 | int mouse; | |
a193ecf1 | 7724 | Lisp_Object overlay; |
03e1d617 RS |
7725 | { |
7726 | struct frame *f = XFRAME (w->frame); | |
7727 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7728 | Lisp_Object prop, position; | |
7729 | int i, noverlays; | |
7730 | Lisp_Object *overlay_vec; | |
7731 | Lisp_Object frame; | |
7732 | int endpos; | |
7733 | Lisp_Object propname = mouse ? Qmouse_face : Qface; | |
7734 | Lisp_Object limit1, end; | |
7735 | struct face *default_face; | |
7736 | ||
7737 | /* W must display the current buffer. We could write this function | |
7738 | to use the frame and buffer of W, but right now it doesn't. */ | |
7739 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ | |
7740 | ||
7741 | XSETFRAME (frame, f); | |
7742 | XSETFASTINT (position, pos); | |
7743 | ||
7744 | endpos = ZV; | |
7745 | if (pos < region_beg && region_beg < endpos) | |
7746 | endpos = region_beg; | |
7747 | ||
7748 | /* Get the `face' or `mouse_face' text property at POS, and | |
7749 | determine the next position at which the property changes. */ | |
7750 | prop = Fget_text_property (position, propname, w->buffer); | |
7751 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); | |
7752 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
7753 | if (INTEGERP (end)) | |
7754 | endpos = XINT (end); | |
7755 | ||
7756 | *endptr = endpos; | |
7757 | ||
7758 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7759 | ||
7760 | /* Optimize common cases where we can use the default face. */ | |
7761 | if (NILP (prop) | |
7762 | && !(pos >= region_beg && pos < region_end)) | |
7763 | return DEFAULT_FACE_ID; | |
7764 | ||
7765 | /* Begin with attributes from the default face. */ | |
7766 | bcopy (default_face->lface, attrs, sizeof attrs); | |
7767 | ||
7768 | /* Merge in attributes specified via text properties. */ | |
7769 | if (!NILP (prop)) | |
7770 | merge_face_ref (f, prop, attrs, 1, 0); | |
7771 | ||
7772 | /* If in the region, merge in the region face. */ | |
7773 | if (pos >= region_beg && pos < region_end) | |
7774 | { | |
7775 | merge_named_face (f, Qregion, attrs, 0); | |
7776 | ||
7777 | if (region_end < endpos) | |
7778 | endpos = region_end; | |
7779 | } | |
7780 | ||
7781 | *endptr = endpos; | |
7782 | ||
7783 | /* Look up a realized face with the given face attributes, | |
7784 | or realize a new one for ASCII characters. */ | |
7785 | return lookup_face (f, attrs, 0, NULL); | |
7786 | } | |
7787 | ||
60573a90 | 7788 | |
82641697 | 7789 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 7790 | window W, for ASCII characters. |
7b7739b1 | 7791 | |
82641697 GM |
7792 | If STRING is an overlay string, it comes from position BUFPOS in |
7793 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
7794 | not an overlay string. W must display the current buffer. | |
7795 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
7796 | region; both are -1 if no region is visible. |
7797 | ||
7798 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
7799 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 7800 | |
48a4ca99 GM |
7801 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
7802 | ||
82641697 GM |
7803 | Set *ENDPTR to the next position where to check for faces in |
7804 | STRING; -1 if the face is constant from POS to the end of the | |
7805 | string. | |
18195655 | 7806 | |
82641697 | 7807 | Value is the id of the face to use. The face returned is suitable |
39506348 | 7808 | for displaying ASCII characters. */ |
fffc2367 | 7809 | |
82641697 GM |
7810 | int |
7811 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 7812 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
7813 | struct window *w; |
7814 | Lisp_Object string; | |
7815 | int pos, bufpos; | |
7816 | int region_beg, region_end; | |
7817 | int *endptr; | |
7818 | enum face_id base_face_id; | |
48a4ca99 | 7819 | int mouse_p; |
660ed669 | 7820 | { |
82641697 GM |
7821 | Lisp_Object prop, position, end, limit; |
7822 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
7823 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7824 | struct face *base_face; | |
7825 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 7826 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
7827 | |
7828 | /* Get the value of the face property at the current position within | |
7829 | STRING. Value is nil if there is no face property. */ | |
7830 | XSETFASTINT (position, pos); | |
48a4ca99 | 7831 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
7832 | |
7833 | /* Get the next position at which to check for faces. Value of end | |
7834 | is nil if face is constant all the way to the end of the string. | |
7835 | Otherwise it is a string position where to check faces next. | |
7836 | Limit is the maximum position up to which to check for property | |
7837 | changes in Fnext_single_property_change. Strings are usually | |
7838 | short, so set the limit to the end of the string. */ | |
d5db4077 | 7839 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 7840 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
7841 | if (INTEGERP (end)) |
7842 | *endptr = XFASTINT (end); | |
7843 | else | |
7844 | *endptr = -1; | |
7845 | ||
7846 | base_face = FACE_FROM_ID (f, base_face_id); | |
7847 | xassert (base_face); | |
7848 | ||
7849 | /* Optimize the default case that there is no face property and we | |
7850 | are not in the region. */ | |
7851 | if (NILP (prop) | |
7852 | && (base_face_id != DEFAULT_FACE_ID | |
7853 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
7854 | that the region doesn't have to be taken into account. */ | |
7855 | || bufpos <= 0 | |
7856 | || bufpos < region_beg | |
7857 | || bufpos >= region_end) | |
7858 | && (multibyte_p | |
7859 | /* We can't realize faces for different charsets differently | |
7860 | if we don't have fonts, so we can stop here if not working | |
7861 | on a window-system frame. */ | |
7862 | || !FRAME_WINDOW_P (f) | |
39506348 | 7863 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
7864 | return base_face->id; |
7865 | ||
7866 | /* Begin with attributes from the base face. */ | |
7867 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7868 | ||
7869 | /* Merge in attributes specified via text properties. */ | |
7870 | if (!NILP (prop)) | |
a0a23346 | 7871 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
7872 | |
7873 | /* If in the region, merge in the region face. */ | |
7874 | if (bufpos | |
7875 | && bufpos >= region_beg | |
7876 | && bufpos < region_end) | |
a0a23346 | 7877 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 7878 | |
82641697 | 7879 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7880 | or realize a new one for ASCII characters. */ |
7881 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
7882 | } |
7883 | ||
7884 | ||
fd998c7f KS |
7885 | /* Merge a face into a realized face. |
7886 | ||
7887 | F is frame where faces are (to be) realized. | |
7888 | ||
dc91a0ed KS |
7889 | FACE_NAME is named face to merge. |
7890 | ||
7891 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
7892 | ||
7893 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
7894 | |
7895 | BASE_FACE_ID is realized face to merge into. | |
7896 | ||
dc91a0ed | 7897 | Return new face id. |
fd998c7f KS |
7898 | */ |
7899 | ||
7900 | int | |
dc91a0ed | 7901 | merge_faces (f, face_name, face_id, base_face_id) |
fd998c7f KS |
7902 | struct frame *f; |
7903 | Lisp_Object face_name; | |
7904 | int face_id, base_face_id; | |
7905 | { | |
7906 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7907 | struct face *base_face; | |
7908 | ||
7909 | base_face = FACE_FROM_ID (f, base_face_id); | |
7910 | if (!base_face) | |
7911 | return base_face_id; | |
7912 | ||
dc91a0ed KS |
7913 | if (EQ (face_name, Qt)) |
7914 | { | |
7915 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
7916 | return base_face_id; | |
7917 | face_name = lface_id_to_name[face_id]; | |
d196a547 | 7918 | face_id = lookup_derived_face (f, face_name, 0, base_face_id, 1); |
dc91a0ed KS |
7919 | if (face_id >= 0) |
7920 | return face_id; | |
7921 | return base_face_id; | |
7922 | } | |
7923 | ||
fd998c7f KS |
7924 | /* Begin with attributes from the base face. */ |
7925 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7926 | ||
7927 | if (!NILP (face_name)) | |
7928 | { | |
7929 | if (!merge_named_face (f, face_name, attrs, 0)) | |
7930 | return base_face_id; | |
7931 | } | |
7932 | else | |
7933 | { | |
7934 | struct face *face; | |
dc91a0ed KS |
7935 | if (face_id < 0) |
7936 | return base_face_id; | |
fd998c7f KS |
7937 | face = FACE_FROM_ID (f, face_id); |
7938 | if (!face) | |
7939 | return base_face_id; | |
7940 | merge_face_vectors (f, face->lface, attrs, 0); | |
7941 | } | |
7942 | ||
7943 | /* Look up a realized face with the given face attributes, | |
7944 | or realize a new one for ASCII characters. */ | |
7945 | return lookup_face (f, attrs, 0, NULL); | |
7946 | } | |
7947 | ||
c115973b | 7948 | \f |
82641697 GM |
7949 | /*********************************************************************** |
7950 | Tests | |
7951 | ***********************************************************************/ | |
c115973b | 7952 | |
82641697 | 7953 | #if GLYPH_DEBUG |
c115973b | 7954 | |
82641697 | 7955 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 7956 | |
82641697 GM |
7957 | static void |
7958 | dump_realized_face (face) | |
7959 | struct face *face; | |
7960 | { | |
7961 | fprintf (stderr, "ID: %d\n", face->id); | |
7962 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 7963 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
7964 | #endif |
7965 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
7966 | face->foreground, | |
d5db4077 | 7967 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
7968 | fprintf (stderr, "background: 0x%lx (%s)\n", |
7969 | face->background, | |
d5db4077 | 7970 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
7971 | fprintf (stderr, "font_name: %s (%s)\n", |
7972 | face->font_name, | |
d5db4077 | 7973 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
7974 | #ifdef HAVE_X_WINDOWS |
7975 | fprintf (stderr, "font = %p\n", face->font); | |
7976 | #endif | |
7977 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
7978 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
7979 | fprintf (stderr, "underline: %d (%s)\n", | |
7980 | face->underline_p, | |
d5db4077 | 7981 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 GM |
7982 | fprintf (stderr, "hash: %d\n", face->hash); |
7983 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
7984 | } |
7985 | ||
7986 | ||
7ee72033 MB |
7987 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
7988 | (n) | |
82641697 | 7989 | Lisp_Object n; |
c115973b | 7990 | { |
82641697 | 7991 | if (NILP (n)) |
c115973b | 7992 | { |
82641697 | 7993 | int i; |
178c5d9c | 7994 | |
82641697 GM |
7995 | fprintf (stderr, "font selection order: "); |
7996 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7997 | fprintf (stderr, "%d ", font_sort_order[i]); | |
7998 | fprintf (stderr, "\n"); | |
7999 | ||
8000 | fprintf (stderr, "alternative fonts: "); | |
8001 | debug_print (Vface_alternative_font_family_alist); | |
8002 | fprintf (stderr, "\n"); | |
178c5d9c | 8003 | |
c0617987 | 8004 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 8005 | Fdump_face (make_number (i)); |
c115973b JB |
8006 | } |
8007 | else | |
f5e278c7 | 8008 | { |
82641697 | 8009 | struct face *face; |
b7826503 | 8010 | CHECK_NUMBER (n); |
c0617987 | 8011 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
8012 | if (face == NULL) |
8013 | error ("Not a valid face"); | |
8014 | dump_realized_face (face); | |
f5e278c7 | 8015 | } |
178c5d9c | 8016 | |
c115973b JB |
8017 | return Qnil; |
8018 | } | |
b5c53576 | 8019 | |
b5c53576 | 8020 | |
82641697 | 8021 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
8022 | 0, 0, 0, doc: /* */) |
8023 | () | |
b5c53576 | 8024 | { |
82641697 GM |
8025 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
8026 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
8027 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
8028 | return Qnil; | |
b5c53576 RS |
8029 | } |
8030 | ||
82641697 GM |
8031 | #endif /* GLYPH_DEBUG != 0 */ |
8032 | ||
b5c53576 | 8033 | |
c115973b | 8034 | \f |
82641697 GM |
8035 | /*********************************************************************** |
8036 | Initialization | |
8037 | ***********************************************************************/ | |
cb637678 | 8038 | |
c115973b | 8039 | void |
f211082d | 8040 | syms_of_xfaces () |
c115973b | 8041 | { |
f211082d JB |
8042 | Qface = intern ("face"); |
8043 | staticpro (&Qface); | |
46b00436 KS |
8044 | Qface_no_inherit = intern ("face-no-inherit"); |
8045 | staticpro (&Qface_no_inherit); | |
fef04523 GM |
8046 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
8047 | staticpro (&Qbitmap_spec_p); | |
c20577bc JL |
8048 | Qframe_set_background_mode = intern ("frame-set-background-mode"); |
8049 | staticpro (&Qframe_set_background_mode); | |
178c5d9c | 8050 | |
82641697 GM |
8051 | /* Lisp face attribute keywords. */ |
8052 | QCfamily = intern (":family"); | |
8053 | staticpro (&QCfamily); | |
8054 | QCheight = intern (":height"); | |
8055 | staticpro (&QCheight); | |
8056 | QCweight = intern (":weight"); | |
8057 | staticpro (&QCweight); | |
8058 | QCslant = intern (":slant"); | |
8059 | staticpro (&QCslant); | |
8060 | QCunderline = intern (":underline"); | |
8061 | staticpro (&QCunderline); | |
8062 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 8063 | staticpro (&QCinverse_video); |
82641697 GM |
8064 | QCreverse_video = intern (":reverse-video"); |
8065 | staticpro (&QCreverse_video); | |
8066 | QCforeground = intern (":foreground"); | |
8067 | staticpro (&QCforeground); | |
8068 | QCbackground = intern (":background"); | |
8069 | staticpro (&QCbackground); | |
543d1448 | 8070 | QCstipple = intern (":stipple"); |
82641697 GM |
8071 | staticpro (&QCstipple); |
8072 | QCwidth = intern (":width"); | |
8073 | staticpro (&QCwidth); | |
8074 | QCfont = intern (":font"); | |
8075 | staticpro (&QCfont); | |
8076 | QCbold = intern (":bold"); | |
8077 | staticpro (&QCbold); | |
8078 | QCitalic = intern (":italic"); | |
8079 | staticpro (&QCitalic); | |
8080 | QCoverline = intern (":overline"); | |
8081 | staticpro (&QCoverline); | |
8082 | QCstrike_through = intern (":strike-through"); | |
8083 | staticpro (&QCstrike_through); | |
8084 | QCbox = intern (":box"); | |
8085 | staticpro (&QCbox); | |
2c20458f MB |
8086 | QCinherit = intern (":inherit"); |
8087 | staticpro (&QCinherit); | |
82641697 GM |
8088 | |
8089 | /* Symbols used for Lisp face attribute values. */ | |
8090 | QCcolor = intern (":color"); | |
8091 | staticpro (&QCcolor); | |
8092 | QCline_width = intern (":line-width"); | |
8093 | staticpro (&QCline_width); | |
8094 | QCstyle = intern (":style"); | |
8095 | staticpro (&QCstyle); | |
8096 | Qreleased_button = intern ("released-button"); | |
8097 | staticpro (&Qreleased_button); | |
8098 | Qpressed_button = intern ("pressed-button"); | |
8099 | staticpro (&Qpressed_button); | |
8100 | Qnormal = intern ("normal"); | |
8101 | staticpro (&Qnormal); | |
8102 | Qultra_light = intern ("ultra-light"); | |
8103 | staticpro (&Qultra_light); | |
8104 | Qextra_light = intern ("extra-light"); | |
8105 | staticpro (&Qextra_light); | |
8106 | Qlight = intern ("light"); | |
8107 | staticpro (&Qlight); | |
8108 | Qsemi_light = intern ("semi-light"); | |
8109 | staticpro (&Qsemi_light); | |
8110 | Qsemi_bold = intern ("semi-bold"); | |
8111 | staticpro (&Qsemi_bold); | |
8112 | Qbold = intern ("bold"); | |
8113 | staticpro (&Qbold); | |
8114 | Qextra_bold = intern ("extra-bold"); | |
8115 | staticpro (&Qextra_bold); | |
8116 | Qultra_bold = intern ("ultra-bold"); | |
8117 | staticpro (&Qultra_bold); | |
8118 | Qoblique = intern ("oblique"); | |
8119 | staticpro (&Qoblique); | |
8120 | Qitalic = intern ("italic"); | |
8121 | staticpro (&Qitalic); | |
8122 | Qreverse_oblique = intern ("reverse-oblique"); | |
8123 | staticpro (&Qreverse_oblique); | |
8124 | Qreverse_italic = intern ("reverse-italic"); | |
8125 | staticpro (&Qreverse_italic); | |
8126 | Qultra_condensed = intern ("ultra-condensed"); | |
8127 | staticpro (&Qultra_condensed); | |
8128 | Qextra_condensed = intern ("extra-condensed"); | |
8129 | staticpro (&Qextra_condensed); | |
8130 | Qcondensed = intern ("condensed"); | |
8131 | staticpro (&Qcondensed); | |
8132 | Qsemi_condensed = intern ("semi-condensed"); | |
8133 | staticpro (&Qsemi_condensed); | |
8134 | Qsemi_expanded = intern ("semi-expanded"); | |
8135 | staticpro (&Qsemi_expanded); | |
8136 | Qexpanded = intern ("expanded"); | |
8137 | staticpro (&Qexpanded); | |
8138 | Qextra_expanded = intern ("extra-expanded"); | |
8139 | staticpro (&Qextra_expanded); | |
8140 | Qultra_expanded = intern ("ultra-expanded"); | |
8141 | staticpro (&Qultra_expanded); | |
8142 | Qbackground_color = intern ("background-color"); | |
8143 | staticpro (&Qbackground_color); | |
8144 | Qforeground_color = intern ("foreground-color"); | |
8145 | staticpro (&Qforeground_color); | |
8146 | Qunspecified = intern ("unspecified"); | |
8147 | staticpro (&Qunspecified); | |
2ff10663 CY |
8148 | Qignore_defface = intern (":ignore-defface"); |
8149 | staticpro (&Qignore_defface); | |
82641697 | 8150 | |
92610620 GM |
8151 | Qface_alias = intern ("face-alias"); |
8152 | staticpro (&Qface_alias); | |
82641697 GM |
8153 | Qdefault = intern ("default"); |
8154 | staticpro (&Qdefault); | |
9ea173e8 GM |
8155 | Qtool_bar = intern ("tool-bar"); |
8156 | staticpro (&Qtool_bar); | |
82641697 GM |
8157 | Qregion = intern ("region"); |
8158 | staticpro (&Qregion); | |
8bd201d6 GM |
8159 | Qfringe = intern ("fringe"); |
8160 | staticpro (&Qfringe); | |
045dee35 GM |
8161 | Qheader_line = intern ("header-line"); |
8162 | staticpro (&Qheader_line); | |
8bd201d6 GM |
8163 | Qscroll_bar = intern ("scroll-bar"); |
8164 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
8165 | Qmenu = intern ("menu"); |
8166 | staticpro (&Qmenu); | |
8bd201d6 GM |
8167 | Qcursor = intern ("cursor"); |
8168 | staticpro (&Qcursor); | |
8169 | Qborder = intern ("border"); | |
8170 | staticpro (&Qborder); | |
8171 | Qmouse = intern ("mouse"); | |
8172 | staticpro (&Qmouse); | |
039b6394 KS |
8173 | Qmode_line_inactive = intern ("mode-line-inactive"); |
8174 | staticpro (&Qmode_line_inactive); | |
53abc3bf MB |
8175 | Qvertical_border = intern ("vertical-border"); |
8176 | staticpro (&Qvertical_border); | |
2d764c78 EZ |
8177 | Qtty_color_desc = intern ("tty-color-desc"); |
8178 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
8179 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
8180 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
8181 | Qtty_color_by_index = intern ("tty-color-by-index"); |
8182 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
8183 | Qtty_color_alist = intern ("tty-color-alist"); |
8184 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
8185 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
8186 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 8187 | |
dbc968b8 GM |
8188 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
8189 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
8190 | Vface_alternative_font_family_alist = Qnil; |
8191 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
8192 | Vface_alternative_font_registry_alist = Qnil; |
8193 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 8194 | |
82641697 GM |
8195 | defsubr (&Sinternal_make_lisp_face); |
8196 | defsubr (&Sinternal_lisp_face_p); | |
8197 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 8198 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 8199 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 8200 | #endif |
ea4fa0af GM |
8201 | defsubr (&Scolor_gray_p); |
8202 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
8203 | defsubr (&Sface_attribute_relative_p); |
8204 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
8205 | defsubr (&Sinternal_get_lisp_face_attribute); |
8206 | defsubr (&Sinternal_lisp_face_attribute_values); | |
8207 | defsubr (&Sinternal_lisp_face_equal_p); | |
8208 | defsubr (&Sinternal_lisp_face_empty_p); | |
8209 | defsubr (&Sinternal_copy_lisp_face); | |
8210 | defsubr (&Sinternal_merge_in_global_face); | |
8211 | defsubr (&Sface_font); | |
8212 | defsubr (&Sframe_face_alist); | |
9717e36c | 8213 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 8214 | defsubr (&Scolor_distance); |
82641697 GM |
8215 | defsubr (&Sinternal_set_font_selection_order); |
8216 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 8217 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 8218 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
8219 | #if GLYPH_DEBUG |
8220 | defsubr (&Sdump_face); | |
8221 | defsubr (&Sshow_face_resources); | |
8222 | #endif /* GLYPH_DEBUG */ | |
8223 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 8224 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 8225 | |
38426dee | 8226 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
8227 | defsubr (&Sdump_colors); |
8228 | #endif | |
8229 | ||
7ee72033 MB |
8230 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
8231 | doc: /* *Limit for font matching. | |
228299fa GM |
8232 | If an integer > 0, font matching functions won't load more than |
8233 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
8234 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
8235 | ||
7ee72033 MB |
8236 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
8237 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 8238 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 8239 | |
7ee72033 MB |
8240 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
8241 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
8242 | This stipple pattern is used on monochrome displays |
8243 | instead of shades of gray for a face background color. | |
8244 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
8245 | Vface_default_stipple = build_string ("gray3"); |
8246 | ||
7ee72033 MB |
8247 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
8248 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
8249 | Vtty_defined_color_alist = Qnil; |
8250 | ||
7ee72033 MB |
8251 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
8252 | doc: /* Allowed scalable fonts. | |
228299fa GM |
8253 | A value of nil means don't allow any scalable fonts. |
8254 | A value of t means allow any scalable font. | |
8255 | Otherwise, value must be a list of regular expressions. A font may be | |
8256 | scaled if its name matches a regular expression in the list. | |
8257 | Note that if value is nil, a scalable font might still be used, if no | |
8258 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 8259 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 8260 | |
7ee72033 MB |
8261 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
8262 | doc: /* List of ignored fonts. | |
228299fa GM |
8263 | Each element is a regular expression that matches names of fonts to |
8264 | ignore. */); | |
c824bfbc KH |
8265 | Vface_ignored_fonts = Qnil; |
8266 | ||
f70400f2 KH |
8267 | DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist, |
8268 | doc: /* Alist of fonts vs the rescaling factors. | |
8269 | Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where | |
8270 | FONT-NAME-PATTERN is a regular expression matching a font name, and | |
8271 | RESCALE-RATIO is a floating point number to specify how much larger | |
8272 | \(or smaller) font we should use. For instance, if a face requests | |
8273 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
8274 | Vface_font_rescale_alist = Qnil; | |
8275 | ||
c3cee013 | 8276 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 8277 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
8278 | defsubr (&Sx_list_fonts); |
8279 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 8280 | defsubr (&Sx_family_fonts); |
82641697 | 8281 | defsubr (&Sx_font_family_list); |
c3cee013 | 8282 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 8283 | } |
ab5796a9 MB |
8284 | |
8285 | /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749 | |
8286 | (do not change this comment) */ |